| /* |
| * Linux syscalls |
| * |
| * Copyright (c) 2003 Fabrice Bellard |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| #define _ATFILE_SOURCE |
| #include "qemu/osdep.h" |
| #include "qemu/cutils.h" |
| #include "qemu/path.h" |
| #include "qemu/memfd.h" |
| #include "qemu/queue.h" |
| #include <elf.h> |
| #include <endian.h> |
| #include <grp.h> |
| #include <sys/ipc.h> |
| #include <sys/msg.h> |
| #include <sys/wait.h> |
| #include <sys/mount.h> |
| #include <sys/file.h> |
| #include <sys/fsuid.h> |
| #include <sys/personality.h> |
| #include <sys/prctl.h> |
| #include <sys/resource.h> |
| #include <sys/swap.h> |
| #include <linux/capability.h> |
| #include <sched.h> |
| #include <sys/timex.h> |
| #include <sys/socket.h> |
| #include <linux/sockios.h> |
| #include <sys/un.h> |
| #include <sys/uio.h> |
| #include <poll.h> |
| #include <sys/times.h> |
| #include <sys/shm.h> |
| #include <sys/sem.h> |
| #include <sys/statfs.h> |
| #include <utime.h> |
| #include <sys/sysinfo.h> |
| #include <sys/signalfd.h> |
| //#include <sys/user.h> |
| #include <netinet/ip.h> |
| #include <netinet/tcp.h> |
| #include <linux/wireless.h> |
| #include <linux/icmp.h> |
| #include <linux/icmpv6.h> |
| #include <linux/errqueue.h> |
| #include <linux/random.h> |
| #ifdef CONFIG_TIMERFD |
| #include <sys/timerfd.h> |
| #endif |
| #ifdef CONFIG_EVENTFD |
| #include <sys/eventfd.h> |
| #endif |
| #ifdef CONFIG_EPOLL |
| #include <sys/epoll.h> |
| #endif |
| #ifdef CONFIG_ATTR |
| #include "qemu/xattr.h" |
| #endif |
| #ifdef CONFIG_SENDFILE |
| #include <sys/sendfile.h> |
| #endif |
| #ifdef CONFIG_KCOV |
| #include <sys/kcov.h> |
| #endif |
| |
| #define termios host_termios |
| #define winsize host_winsize |
| #define termio host_termio |
| #define sgttyb host_sgttyb /* same as target */ |
| #define tchars host_tchars /* same as target */ |
| #define ltchars host_ltchars /* same as target */ |
| |
| #include <linux/termios.h> |
| #include <linux/unistd.h> |
| #include <linux/cdrom.h> |
| #include <linux/hdreg.h> |
| #include <linux/soundcard.h> |
| #include <linux/kd.h> |
| #include <linux/mtio.h> |
| #include <linux/fs.h> |
| #include <linux/fd.h> |
| #if defined(CONFIG_FIEMAP) |
| #include <linux/fiemap.h> |
| #endif |
| #include <linux/fb.h> |
| #if defined(CONFIG_USBFS) |
| #include <linux/usbdevice_fs.h> |
| #include <linux/usb/ch9.h> |
| #endif |
| #include <linux/vt.h> |
| #include <linux/dm-ioctl.h> |
| #include <linux/reboot.h> |
| #include <linux/route.h> |
| #include <linux/filter.h> |
| #include <linux/blkpg.h> |
| #include <netpacket/packet.h> |
| #include <linux/netlink.h> |
| #include <linux/if_alg.h> |
| #include <linux/rtc.h> |
| #include <sound/asound.h> |
| #include "linux_loop.h" |
| #include "uname.h" |
| |
| #include "qemu.h" |
| #include "qemu/guest-random.h" |
| #include "qemu/selfmap.h" |
| #include "user/syscall-trace.h" |
| #include "qapi/error.h" |
| #include "fd-trans.h" |
| #include "tcg/tcg.h" |
| |
| #ifndef CLONE_IO |
| #define CLONE_IO 0x80000000 /* Clone io context */ |
| #endif |
| |
| /* We can't directly call the host clone syscall, because this will |
| * badly confuse libc (breaking mutexes, for example). So we must |
| * divide clone flags into: |
| * * flag combinations that look like pthread_create() |
| * * flag combinations that look like fork() |
| * * flags we can implement within QEMU itself |
| * * flags we can't support and will return an error for |
| */ |
| /* For thread creation, all these flags must be present; for |
| * fork, none must be present. |
| */ |
| #define CLONE_THREAD_FLAGS \ |
| (CLONE_VM | CLONE_FS | CLONE_FILES | \ |
| CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM) |
| |
| /* These flags are ignored: |
| * CLONE_DETACHED is now ignored by the kernel; |
| * CLONE_IO is just an optimisation hint to the I/O scheduler |
| */ |
| #define CLONE_IGNORED_FLAGS \ |
| (CLONE_DETACHED | CLONE_IO) |
| |
| /* Flags for fork which we can implement within QEMU itself */ |
| #define CLONE_OPTIONAL_FORK_FLAGS \ |
| (CLONE_SETTLS | CLONE_PARENT_SETTID | \ |
| CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID) |
| |
| /* Flags for thread creation which we can implement within QEMU itself */ |
| #define CLONE_OPTIONAL_THREAD_FLAGS \ |
| (CLONE_SETTLS | CLONE_PARENT_SETTID | \ |
| CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT) |
| |
| #define CLONE_INVALID_FORK_FLAGS \ |
| (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS)) |
| |
| #define CLONE_INVALID_THREAD_FLAGS \ |
| (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \ |
| CLONE_IGNORED_FLAGS)) |
| |
| /* CLONE_VFORK is special cased early in do_fork(). The other flag bits |
| * have almost all been allocated. We cannot support any of |
| * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC, |
| * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED. |
| * The checks against the invalid thread masks above will catch these. |
| * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.) |
| */ |
| |
| /* Define DEBUG_ERESTARTSYS to force every syscall to be restarted |
| * once. This exercises the codepaths for restart. |
| */ |
| //#define DEBUG_ERESTARTSYS |
| |
| //#include <linux/msdos_fs.h> |
| #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2]) |
| #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2]) |
| |
| #undef _syscall0 |
| #undef _syscall1 |
| #undef _syscall2 |
| #undef _syscall3 |
| #undef _syscall4 |
| #undef _syscall5 |
| #undef _syscall6 |
| |
| #define _syscall0(type,name) \ |
| static type name (void) \ |
| { \ |
| return syscall(__NR_##name); \ |
| } |
| |
| #define _syscall1(type,name,type1,arg1) \ |
| static type name (type1 arg1) \ |
| { \ |
| return syscall(__NR_##name, arg1); \ |
| } |
| |
| #define _syscall2(type,name,type1,arg1,type2,arg2) \ |
| static type name (type1 arg1,type2 arg2) \ |
| { \ |
| return syscall(__NR_##name, arg1, arg2); \ |
| } |
| |
| #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ |
| static type name (type1 arg1,type2 arg2,type3 arg3) \ |
| { \ |
| return syscall(__NR_##name, arg1, arg2, arg3); \ |
| } |
| |
| #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ |
| static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ |
| { \ |
| return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ |
| } |
| |
| #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ |
| type5,arg5) \ |
| static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ |
| { \ |
| return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ |
| } |
| |
| |
| #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ |
| type5,arg5,type6,arg6) \ |
| static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ |
| type6 arg6) \ |
| { \ |
| return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ |
| } |
| |
| |
| #define __NR_sys_uname __NR_uname |
| #define __NR_sys_getcwd1 __NR_getcwd |
| #define __NR_sys_getdents __NR_getdents |
| #define __NR_sys_getdents64 __NR_getdents64 |
| #define __NR_sys_getpriority __NR_getpriority |
| #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo |
| #define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo |
| #define __NR_sys_syslog __NR_syslog |
| #if defined(__NR_futex) |
| # define __NR_sys_futex __NR_futex |
| #endif |
| #if defined(__NR_futex_time64) |
| # define __NR_sys_futex_time64 __NR_futex_time64 |
| #endif |
| #define __NR_sys_inotify_init __NR_inotify_init |
| #define __NR_sys_inotify_add_watch __NR_inotify_add_watch |
| #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch |
| #define __NR_sys_statx __NR_statx |
| |
| #if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__) |
| #define __NR__llseek __NR_lseek |
| #endif |
| |
| /* Newer kernel ports have llseek() instead of _llseek() */ |
| #if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek) |
| #define TARGET_NR__llseek TARGET_NR_llseek |
| #endif |
| |
| #define __NR_sys_gettid __NR_gettid |
| _syscall0(int, sys_gettid) |
| |
| /* For the 64-bit guest on 32-bit host case we must emulate |
| * getdents using getdents64, because otherwise the host |
| * might hand us back more dirent records than we can fit |
| * into the guest buffer after structure format conversion. |
| * Otherwise we emulate getdents with getdents if the host has it. |
| */ |
| #if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS |
| #define EMULATE_GETDENTS_WITH_GETDENTS |
| #endif |
| |
| #if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS) |
| _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count); |
| #endif |
| #if (defined(TARGET_NR_getdents) && \ |
| !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \ |
| (defined(TARGET_NR_getdents64) && defined(__NR_getdents64)) |
| _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count); |
| #endif |
| #if defined(TARGET_NR__llseek) && defined(__NR_llseek) |
| _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, |
| loff_t *, res, uint, wh); |
| #endif |
| _syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo) |
| _syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig, |
| siginfo_t *, uinfo) |
| _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) |
| #ifdef __NR_exit_group |
| _syscall1(int,exit_group,int,error_code) |
| #endif |
| #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) |
| _syscall1(int,set_tid_address,int *,tidptr) |
| #endif |
| #if defined(__NR_futex) |
| _syscall6(int,sys_futex,int *,uaddr,int,op,int,val, |
| const struct timespec *,timeout,int *,uaddr2,int,val3) |
| #endif |
| #if defined(__NR_futex_time64) |
| _syscall6(int,sys_futex_time64,int *,uaddr,int,op,int,val, |
| const struct timespec *,timeout,int *,uaddr2,int,val3) |
| #endif |
| #define __NR_sys_sched_getaffinity __NR_sched_getaffinity |
| _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len, |
| unsigned long *, user_mask_ptr); |
| #define __NR_sys_sched_setaffinity __NR_sched_setaffinity |
| _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len, |
| unsigned long *, user_mask_ptr); |
| #define __NR_sys_getcpu __NR_getcpu |
| _syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache); |
| _syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd, |
| void *, arg); |
| _syscall2(int, capget, struct __user_cap_header_struct *, header, |
| struct __user_cap_data_struct *, data); |
| _syscall2(int, capset, struct __user_cap_header_struct *, header, |
| struct __user_cap_data_struct *, data); |
| #if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get) |
| _syscall2(int, ioprio_get, int, which, int, who) |
| #endif |
| #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set) |
| _syscall3(int, ioprio_set, int, which, int, who, int, ioprio) |
| #endif |
| #if defined(TARGET_NR_getrandom) && defined(__NR_getrandom) |
| _syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags) |
| #endif |
| |
| #if defined(TARGET_NR_kcmp) && defined(__NR_kcmp) |
| _syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type, |
| unsigned long, idx1, unsigned long, idx2) |
| #endif |
| |
| /* |
| * It is assumed that struct statx is architecture independent. |
| */ |
| #if defined(TARGET_NR_statx) && defined(__NR_statx) |
| _syscall5(int, sys_statx, int, dirfd, const char *, pathname, int, flags, |
| unsigned int, mask, struct target_statx *, statxbuf) |
| #endif |
| #if defined(TARGET_NR_membarrier) && defined(__NR_membarrier) |
| _syscall2(int, membarrier, int, cmd, int, flags) |
| #endif |
| |
| static bitmask_transtbl fcntl_flags_tbl[] = { |
| { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, |
| { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, |
| { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, |
| { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, |
| { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, |
| { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, |
| { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, |
| { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, |
| { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, }, |
| { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, |
| { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, |
| { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, |
| { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, |
| #if defined(O_DIRECT) |
| { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, |
| #endif |
| #if defined(O_NOATIME) |
| { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME }, |
| #endif |
| #if defined(O_CLOEXEC) |
| { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC }, |
| #endif |
| #if defined(O_PATH) |
| { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH }, |
| #endif |
| #if defined(O_TMPFILE) |
| { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE }, |
| #endif |
| /* Don't terminate the list prematurely on 64-bit host+guest. */ |
| #if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0 |
| { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, |
| #endif |
| { 0, 0, 0, 0 } |
| }; |
| |
| static int sys_getcwd1(char *buf, size_t size) |
| { |
| if (getcwd(buf, size) == NULL) { |
| /* getcwd() sets errno */ |
| return (-1); |
| } |
| return strlen(buf)+1; |
| } |
| |
| #ifdef TARGET_NR_utimensat |
| #if defined(__NR_utimensat) |
| #define __NR_sys_utimensat __NR_utimensat |
| _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, |
| const struct timespec *,tsp,int,flags) |
| #else |
| static int sys_utimensat(int dirfd, const char *pathname, |
| const struct timespec times[2], int flags) |
| { |
| errno = ENOSYS; |
| return -1; |
| } |
| #endif |
| #endif /* TARGET_NR_utimensat */ |
| |
| #ifdef TARGET_NR_renameat2 |
| #if defined(__NR_renameat2) |
| #define __NR_sys_renameat2 __NR_renameat2 |
| _syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd, |
| const char *, new, unsigned int, flags) |
| #else |
| static int sys_renameat2(int oldfd, const char *old, |
| int newfd, const char *new, int flags) |
| { |
| if (flags == 0) { |
| return renameat(oldfd, old, newfd, new); |
| } |
| errno = ENOSYS; |
| return -1; |
| } |
| #endif |
| #endif /* TARGET_NR_renameat2 */ |
| |
| #ifdef CONFIG_INOTIFY |
| #include <sys/inotify.h> |
| |
| #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) |
| static int sys_inotify_init(void) |
| { |
| return (inotify_init()); |
| } |
| #endif |
| #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) |
| static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask) |
| { |
| return (inotify_add_watch(fd, pathname, mask)); |
| } |
| #endif |
| #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) |
| static int sys_inotify_rm_watch(int fd, int32_t wd) |
| { |
| return (inotify_rm_watch(fd, wd)); |
| } |
| #endif |
| #ifdef CONFIG_INOTIFY1 |
| #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) |
| static int sys_inotify_init1(int flags) |
| { |
| return (inotify_init1(flags)); |
| } |
| #endif |
| #endif |
| #else |
| /* Userspace can usually survive runtime without inotify */ |
| #undef TARGET_NR_inotify_init |
| #undef TARGET_NR_inotify_init1 |
| #undef TARGET_NR_inotify_add_watch |
| #undef TARGET_NR_inotify_rm_watch |
| #endif /* CONFIG_INOTIFY */ |
| |
| #if defined(TARGET_NR_prlimit64) |
| #ifndef __NR_prlimit64 |
| # define __NR_prlimit64 -1 |
| #endif |
| #define __NR_sys_prlimit64 __NR_prlimit64 |
| /* The glibc rlimit structure may not be that used by the underlying syscall */ |
| struct host_rlimit64 { |
| uint64_t rlim_cur; |
| uint64_t rlim_max; |
| }; |
| _syscall4(int, sys_prlimit64, pid_t, pid, int, resource, |
| const struct host_rlimit64 *, new_limit, |
| struct host_rlimit64 *, old_limit) |
| #endif |
| |
| |
| #if defined(TARGET_NR_timer_create) |
| /* Maxiumum of 32 active POSIX timers allowed at any one time. */ |
| static timer_t g_posix_timers[32] = { 0, } ; |
| |
| static inline int next_free_host_timer(void) |
| { |
| int k ; |
| /* FIXME: Does finding the next free slot require a lock? */ |
| for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) { |
| if (g_posix_timers[k] == 0) { |
| g_posix_timers[k] = (timer_t) 1; |
| return k; |
| } |
| } |
| return -1; |
| } |
| #endif |
| |
| /* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */ |
| #ifdef TARGET_ARM |
| static inline int regpairs_aligned(void *cpu_env, int num) |
| { |
| return ((((CPUARMState *)cpu_env)->eabi) == 1) ; |
| } |
| #elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32) |
| static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } |
| #elif defined(TARGET_PPC) && !defined(TARGET_PPC64) |
| /* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs |
| * of registers which translates to the same as ARM/MIPS, because we start with |
| * r3 as arg1 */ |
| static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } |
| #elif defined(TARGET_SH4) |
| /* SH4 doesn't align register pairs, except for p{read,write}64 */ |
| static inline int regpairs_aligned(void *cpu_env, int num) |
| { |
| switch (num) { |
| case TARGET_NR_pread64: |
| case TARGET_NR_pwrite64: |
| return 1; |
| |
| default: |
| return 0; |
| } |
| } |
| #elif defined(TARGET_XTENSA) |
| static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } |
| #else |
| static inline int regpairs_aligned(void *cpu_env, int num) { return 0; } |
| #endif |
| |
| #define ERRNO_TABLE_SIZE 1200 |
| |
| /* target_to_host_errno_table[] is initialized from |
| * host_to_target_errno_table[] in syscall_init(). */ |
| static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { |
| }; |
| |
| /* |
| * This list is the union of errno values overridden in asm-<arch>/errno.h |
| * minus the errnos that are not actually generic to all archs. |
| */ |
| static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { |
| [EAGAIN] = TARGET_EAGAIN, |
| [EIDRM] = TARGET_EIDRM, |
| [ECHRNG] = TARGET_ECHRNG, |
| [EL2NSYNC] = TARGET_EL2NSYNC, |
| [EL3HLT] = TARGET_EL3HLT, |
| [EL3RST] = TARGET_EL3RST, |
| [ELNRNG] = TARGET_ELNRNG, |
| [EUNATCH] = TARGET_EUNATCH, |
| [ENOCSI] = TARGET_ENOCSI, |
| [EL2HLT] = TARGET_EL2HLT, |
| [EDEADLK] = TARGET_EDEADLK, |
| [ENOLCK] = TARGET_ENOLCK, |
| [EBADE] = TARGET_EBADE, |
| [EBADR] = TARGET_EBADR, |
| [EXFULL] = TARGET_EXFULL, |
| [ENOANO] = TARGET_ENOANO, |
| [EBADRQC] = TARGET_EBADRQC, |
| [EBADSLT] = TARGET_EBADSLT, |
| [EBFONT] = TARGET_EBFONT, |
| [ENOSTR] = TARGET_ENOSTR, |
| [ENODATA] = TARGET_ENODATA, |
| [ETIME] = TARGET_ETIME, |
| [ENOSR] = TARGET_ENOSR, |
| [ENONET] = TARGET_ENONET, |
| [ENOPKG] = TARGET_ENOPKG, |
| [EREMOTE] = TARGET_EREMOTE, |
| [ENOLINK] = TARGET_ENOLINK, |
| [EADV] = TARGET_EADV, |
| [ESRMNT] = TARGET_ESRMNT, |
| [ECOMM] = TARGET_ECOMM, |
| [EPROTO] = TARGET_EPROTO, |
| [EDOTDOT] = TARGET_EDOTDOT, |
| [EMULTIHOP] = TARGET_EMULTIHOP, |
| [EBADMSG] = TARGET_EBADMSG, |
| [ENAMETOOLONG] = TARGET_ENAMETOOLONG, |
| [EOVERFLOW] = TARGET_EOVERFLOW, |
| [ENOTUNIQ] = TARGET_ENOTUNIQ, |
| [EBADFD] = TARGET_EBADFD, |
| [EREMCHG] = TARGET_EREMCHG, |
| [ELIBACC] = TARGET_ELIBACC, |
| [ELIBBAD] = TARGET_ELIBBAD, |
| [ELIBSCN] = TARGET_ELIBSCN, |
| [ELIBMAX] = TARGET_ELIBMAX, |
| [ELIBEXEC] = TARGET_ELIBEXEC, |
| [EILSEQ] = TARGET_EILSEQ, |
| [ENOSYS] = TARGET_ENOSYS, |
| [ELOOP] = TARGET_ELOOP, |
| [ERESTART] = TARGET_ERESTART, |
| [ESTRPIPE] = TARGET_ESTRPIPE, |
| [ENOTEMPTY] = TARGET_ENOTEMPTY, |
| [EUSERS] = TARGET_EUSERS, |
| [ENOTSOCK] = TARGET_ENOTSOCK, |
| [EDESTADDRREQ] = TARGET_EDESTADDRREQ, |
| [EMSGSIZE] = TARGET_EMSGSIZE, |
| [EPROTOTYPE] = TARGET_EPROTOTYPE, |
| [ENOPROTOOPT] = TARGET_ENOPROTOOPT, |
| [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, |
| [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, |
| [EOPNOTSUPP] = TARGET_EOPNOTSUPP, |
| [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, |
| [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, |
| [EADDRINUSE] = TARGET_EADDRINUSE, |
| [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, |
| [ENETDOWN] = TARGET_ENETDOWN, |
| [ENETUNREACH] = TARGET_ENETUNREACH, |
| [ENETRESET] = TARGET_ENETRESET, |
| [ECONNABORTED] = TARGET_ECONNABORTED, |
| [ECONNRESET] = TARGET_ECONNRESET, |
| [ENOBUFS] = TARGET_ENOBUFS, |
| [EISCONN] = TARGET_EISCONN, |
| [ENOTCONN] = TARGET_ENOTCONN, |
| [EUCLEAN] = TARGET_EUCLEAN, |
| [ENOTNAM] = TARGET_ENOTNAM, |
| [ENAVAIL] = TARGET_ENAVAIL, |
| [EISNAM] = TARGET_EISNAM, |
| [EREMOTEIO] = TARGET_EREMOTEIO, |
| [EDQUOT] = TARGET_EDQUOT, |
| [ESHUTDOWN] = TARGET_ESHUTDOWN, |
| [ETOOMANYREFS] = TARGET_ETOOMANYREFS, |
| [ETIMEDOUT] = TARGET_ETIMEDOUT, |
| [ECONNREFUSED] = TARGET_ECONNREFUSED, |
| [EHOSTDOWN] = TARGET_EHOSTDOWN, |
| [EHOSTUNREACH] = TARGET_EHOSTUNREACH, |
| [EALREADY] = TARGET_EALREADY, |
| [EINPROGRESS] = TARGET_EINPROGRESS, |
| [ESTALE] = TARGET_ESTALE, |
| [ECANCELED] = TARGET_ECANCELED, |
| [ENOMEDIUM] = TARGET_ENOMEDIUM, |
| [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, |
| #ifdef ENOKEY |
| [ENOKEY] = TARGET_ENOKEY, |
| #endif |
| #ifdef EKEYEXPIRED |
| [EKEYEXPIRED] = TARGET_EKEYEXPIRED, |
| #endif |
| #ifdef EKEYREVOKED |
| [EKEYREVOKED] = TARGET_EKEYREVOKED, |
| #endif |
| #ifdef EKEYREJECTED |
| [EKEYREJECTED] = TARGET_EKEYREJECTED, |
| #endif |
| #ifdef EOWNERDEAD |
| [EOWNERDEAD] = TARGET_EOWNERDEAD, |
| #endif |
| #ifdef ENOTRECOVERABLE |
| [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, |
| #endif |
| #ifdef ENOMSG |
| [ENOMSG] = TARGET_ENOMSG, |
| #endif |
| #ifdef ERKFILL |
| [ERFKILL] = TARGET_ERFKILL, |
| #endif |
| #ifdef EHWPOISON |
| [EHWPOISON] = TARGET_EHWPOISON, |
| #endif |
| }; |
| |
| static inline int host_to_target_errno(int err) |
| { |
| if (err >= 0 && err < ERRNO_TABLE_SIZE && |
| host_to_target_errno_table[err]) { |
| return host_to_target_errno_table[err]; |
| } |
| return err; |
| } |
| |
| static inline int target_to_host_errno(int err) |
| { |
| if (err >= 0 && err < ERRNO_TABLE_SIZE && |
| target_to_host_errno_table[err]) { |
| return target_to_host_errno_table[err]; |
| } |
| return err; |
| } |
| |
| static inline abi_long get_errno(abi_long ret) |
| { |
| if (ret == -1) |
| return -host_to_target_errno(errno); |
| else |
| return ret; |
| } |
| |
| const char *target_strerror(int err) |
| { |
| if (err == TARGET_ERESTARTSYS) { |
| return "To be restarted"; |
| } |
| if (err == TARGET_QEMU_ESIGRETURN) { |
| return "Successful exit from sigreturn"; |
| } |
| |
| if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) { |
| return NULL; |
| } |
| return strerror(target_to_host_errno(err)); |
| } |
| |
| #define safe_syscall0(type, name) \ |
| static type safe_##name(void) \ |
| { \ |
| return safe_syscall(__NR_##name); \ |
| } |
| |
| #define safe_syscall1(type, name, type1, arg1) \ |
| static type safe_##name(type1 arg1) \ |
| { \ |
| return safe_syscall(__NR_##name, arg1); \ |
| } |
| |
| #define safe_syscall2(type, name, type1, arg1, type2, arg2) \ |
| static type safe_##name(type1 arg1, type2 arg2) \ |
| { \ |
| return safe_syscall(__NR_##name, arg1, arg2); \ |
| } |
| |
| #define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ |
| static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \ |
| { \ |
| return safe_syscall(__NR_##name, arg1, arg2, arg3); \ |
| } |
| |
| #define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \ |
| type4, arg4) \ |
| static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ |
| { \ |
| return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \ |
| } |
| |
| #define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \ |
| type4, arg4, type5, arg5) \ |
| static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ |
| type5 arg5) \ |
| { \ |
| return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ |
| } |
| |
| #define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \ |
| type4, arg4, type5, arg5, type6, arg6) \ |
| static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ |
| type5 arg5, type6 arg6) \ |
| { \ |
| return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ |
| } |
| |
| safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count) |
| safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count) |
| safe_syscall4(int, openat, int, dirfd, const char *, pathname, \ |
| int, flags, mode_t, mode) |
| #if defined(TARGET_NR_wait4) || defined(TARGET_NR_waitpid) |
| safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \ |
| struct rusage *, rusage) |
| #endif |
| safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \ |
| int, options, struct rusage *, rusage) |
| safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp) |
| #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \ |
| defined(TARGET_NR_pselect6) |
| safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \ |
| fd_set *, exceptfds, struct timespec *, timeout, void *, sig) |
| #endif |
| #if defined(TARGET_NR_ppoll) || defined(TARGET_NR_poll) |
| safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds, |
| struct timespec *, tsp, const sigset_t *, sigmask, |
| size_t, sigsetsize) |
| #endif |
| safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events, |
| int, maxevents, int, timeout, const sigset_t *, sigmask, |
| size_t, sigsetsize) |
| #if defined(__NR_futex) |
| safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \ |
| const struct timespec *,timeout,int *,uaddr2,int,val3) |
| #endif |
| #if defined(__NR_futex_time64) |
| safe_syscall6(int,futex_time64,int *,uaddr,int,op,int,val, \ |
| const struct timespec *,timeout,int *,uaddr2,int,val3) |
| #endif |
| safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize) |
| safe_syscall2(int, kill, pid_t, pid, int, sig) |
| safe_syscall2(int, tkill, int, tid, int, sig) |
| safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig) |
| safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt) |
| safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt) |
| safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt, |
| unsigned long, pos_l, unsigned long, pos_h) |
| safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt, |
| unsigned long, pos_l, unsigned long, pos_h) |
| safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr, |
| socklen_t, addrlen) |
| safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len, |
| int, flags, const struct sockaddr *, addr, socklen_t, addrlen) |
| safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len, |
| int, flags, struct sockaddr *, addr, socklen_t *, addrlen) |
| safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags) |
| safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags) |
| safe_syscall2(int, flock, int, fd, int, operation) |
| #ifdef TARGET_NR_rt_sigtimedwait |
| safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo, |
| const struct timespec *, uts, size_t, sigsetsize) |
| #endif |
| safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len, |
| int, flags) |
| #if defined(TARGET_NR_nanosleep) |
| safe_syscall2(int, nanosleep, const struct timespec *, req, |
| struct timespec *, rem) |
| #endif |
| #ifdef TARGET_NR_clock_nanosleep |
| safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags, |
| const struct timespec *, req, struct timespec *, rem) |
| #endif |
| #ifdef __NR_ipc |
| safe_syscall6(int, ipc, int, call, long, first, long, second, long, third, |
| void *, ptr, long, fifth) |
| #endif |
| #ifdef __NR_msgsnd |
| safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz, |
| int, flags) |
| #endif |
| #ifdef __NR_msgrcv |
| safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz, |
| long, msgtype, int, flags) |
| #endif |
| #ifdef __NR_semtimedop |
| safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops, |
| unsigned, nsops, const struct timespec *, timeout) |
| #endif |
| #ifdef TARGET_NR_mq_timedsend |
| safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr, |
| size_t, len, unsigned, prio, const struct timespec *, timeout) |
| #endif |
| #ifdef TARGET_NR_mq_timedreceive |
| safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr, |
| size_t, len, unsigned *, prio, const struct timespec *, timeout) |
| #endif |
| /* We do ioctl like this rather than via safe_syscall3 to preserve the |
| * "third argument might be integer or pointer or not present" behaviour of |
| * the libc function. |
| */ |
| #define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__) |
| /* Similarly for fcntl. Note that callers must always: |
| * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK |
| * use the flock64 struct rather than unsuffixed flock |
| * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts. |
| */ |
| #ifdef __NR_fcntl64 |
| #define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__) |
| #else |
| #define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__) |
| #endif |
| |
| static inline int host_to_target_sock_type(int host_type) |
| { |
| int target_type; |
| |
| switch (host_type & 0xf /* SOCK_TYPE_MASK */) { |
| case SOCK_DGRAM: |
| target_type = TARGET_SOCK_DGRAM; |
| break; |
| case SOCK_STREAM: |
| target_type = TARGET_SOCK_STREAM; |
| break; |
| default: |
| target_type = host_type & 0xf /* SOCK_TYPE_MASK */; |
| break; |
| } |
| |
| #if defined(SOCK_CLOEXEC) |
| if (host_type & SOCK_CLOEXEC) { |
| target_type |= TARGET_SOCK_CLOEXEC; |
| } |
| #endif |
| |
| #if defined(SOCK_NONBLOCK) |
| if (host_type & SOCK_NONBLOCK) { |
| target_type |= TARGET_SOCK_NONBLOCK; |
| } |
| #endif |
| |
| return target_type; |
| } |
| |
| static abi_ulong target_brk; |
| static abi_ulong target_original_brk; |
| static abi_ulong brk_page; |
| |
| void target_set_brk(abi_ulong new_brk) |
| { |
| target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); |
| brk_page = HOST_PAGE_ALIGN(target_brk); |
| } |
| |
| //#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0) |
| #define DEBUGF_BRK(message, args...) |
| |
| /* do_brk() must return target values and target errnos. */ |
| abi_long do_brk(abi_ulong new_brk) |
| { |
| abi_long mapped_addr; |
| abi_ulong new_alloc_size; |
| |
| DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk); |
| |
| if (!new_brk) { |
| DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk); |
| return target_brk; |
| } |
| if (new_brk < target_original_brk) { |
| DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n", |
| target_brk); |
| return target_brk; |
| } |
| |
| /* If the new brk is less than the highest page reserved to the |
| * target heap allocation, set it and we're almost done... */ |
| if (new_brk <= brk_page) { |
| /* Heap contents are initialized to zero, as for anonymous |
| * mapped pages. */ |
| if (new_brk > target_brk) { |
| memset(g2h(target_brk), 0, new_brk - target_brk); |
| } |
| target_brk = new_brk; |
| DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk); |
| return target_brk; |
| } |
| |
| /* We need to allocate more memory after the brk... Note that |
| * we don't use MAP_FIXED because that will map over the top of |
| * any existing mapping (like the one with the host libc or qemu |
| * itself); instead we treat "mapped but at wrong address" as |
| * a failure and unmap again. |
| */ |
| new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page); |
| mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, |
| PROT_READ|PROT_WRITE, |
| MAP_ANON|MAP_PRIVATE, 0, 0)); |
| |
| if (mapped_addr == brk_page) { |
| /* Heap contents are initialized to zero, as for anonymous |
| * mapped pages. Technically the new pages are already |
| * initialized to zero since they *are* anonymous mapped |
| * pages, however we have to take care with the contents that |
| * come from the remaining part of the previous page: it may |
| * contains garbage data due to a previous heap usage (grown |
| * then shrunken). */ |
| memset(g2h(target_brk), 0, brk_page - target_brk); |
| |
| target_brk = new_brk; |
| brk_page = HOST_PAGE_ALIGN(target_brk); |
| DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n", |
| target_brk); |
| return target_brk; |
| } else if (mapped_addr != -1) { |
| /* Mapped but at wrong address, meaning there wasn't actually |
| * enough space for this brk. |
| */ |
| target_munmap(mapped_addr, new_alloc_size); |
| mapped_addr = -1; |
| DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk); |
| } |
| else { |
| DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk); |
| } |
| |
| #if defined(TARGET_ALPHA) |
| /* We (partially) emulate OSF/1 on Alpha, which requires we |
| return a proper errno, not an unchanged brk value. */ |
| return -TARGET_ENOMEM; |
| #endif |
| /* For everything else, return the previous break. */ |
| return target_brk; |
| } |
| |
| #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \ |
| defined(TARGET_NR_pselect6) |
| static inline abi_long copy_from_user_fdset(fd_set *fds, |
| abi_ulong target_fds_addr, |
| int n) |
| { |
| int i, nw, j, k; |
| abi_ulong b, *target_fds; |
| |
| nw = DIV_ROUND_UP(n, TARGET_ABI_BITS); |
| if (!(target_fds = lock_user(VERIFY_READ, |
| target_fds_addr, |
| sizeof(abi_ulong) * nw, |
| 1))) |
| return -TARGET_EFAULT; |
| |
| FD_ZERO(fds); |
| k = 0; |
| for (i = 0; i < nw; i++) { |
| /* grab the abi_ulong */ |
| __get_user(b, &target_fds[i]); |
| for (j = 0; j < TARGET_ABI_BITS; j++) { |
| /* check the bit inside the abi_ulong */ |
| if ((b >> j) & 1) |
| FD_SET(k, fds); |
| k++; |
| } |
| } |
| |
| unlock_user(target_fds, target_fds_addr, 0); |
| |
| return 0; |
| } |
| |
| static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr, |
| abi_ulong target_fds_addr, |
| int n) |
| { |
| if (target_fds_addr) { |
| if (copy_from_user_fdset(fds, target_fds_addr, n)) |
| return -TARGET_EFAULT; |
| *fds_ptr = fds; |
| } else { |
| *fds_ptr = NULL; |
| } |
| return 0; |
| } |
| |
| static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr, |
| const fd_set *fds, |
| int n) |
| { |
| int i, nw, j, k; |
| abi_long v; |
| abi_ulong *target_fds; |
| |
| nw = DIV_ROUND_UP(n, TARGET_ABI_BITS); |
| if (!(target_fds = lock_user(VERIFY_WRITE, |
| target_fds_addr, |
| sizeof(abi_ulong) * nw, |
| 0))) |
| return -TARGET_EFAULT; |
| |
| k = 0; |
| for (i = 0; i < nw; i++) { |
| v = 0; |
| for (j = 0; j < TARGET_ABI_BITS; j++) { |
| v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j); |
| k++; |
| } |
| __put_user(v, &target_fds[i]); |
| } |
| |
| unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw); |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(__alpha__) |
| #define HOST_HZ 1024 |
| #else |
| #define HOST_HZ 100 |
| #endif |
| |
| static inline abi_long host_to_target_clock_t(long ticks) |
| { |
| #if HOST_HZ == TARGET_HZ |
| return ticks; |
| #else |
| return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; |
| #endif |
| } |
| |
| static inline abi_long host_to_target_rusage(abi_ulong target_addr, |
| const struct rusage *rusage) |
| { |
| struct target_rusage *target_rusage; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) |
| return -TARGET_EFAULT; |
| target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec); |
| target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec); |
| target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec); |
| target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec); |
| target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss); |
| target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss); |
| target_rusage->ru_idrss = tswapal(rusage->ru_idrss); |
| target_rusage->ru_isrss = tswapal(rusage->ru_isrss); |
| target_rusage->ru_minflt = tswapal(rusage->ru_minflt); |
| target_rusage->ru_majflt = tswapal(rusage->ru_majflt); |
| target_rusage->ru_nswap = tswapal(rusage->ru_nswap); |
| target_rusage->ru_inblock = tswapal(rusage->ru_inblock); |
| target_rusage->ru_oublock = tswapal(rusage->ru_oublock); |
| target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd); |
| target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv); |
| target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals); |
| target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw); |
| target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw); |
| unlock_user_struct(target_rusage, target_addr, 1); |
| |
| return 0; |
| } |
| |
| #ifdef TARGET_NR_setrlimit |
| static inline rlim_t target_to_host_rlim(abi_ulong target_rlim) |
| { |
| abi_ulong target_rlim_swap; |
| rlim_t result; |
| |
| target_rlim_swap = tswapal(target_rlim); |
| if (target_rlim_swap == TARGET_RLIM_INFINITY) |
| return RLIM_INFINITY; |
| |
| result = target_rlim_swap; |
| if (target_rlim_swap != (rlim_t)result) |
| return RLIM_INFINITY; |
| |
| return result; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_getrlimit) || defined(TARGET_NR_ugetrlimit) |
| static inline abi_ulong host_to_target_rlim(rlim_t rlim) |
| { |
| abi_ulong target_rlim_swap; |
| abi_ulong result; |
| |
| if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim) |
| target_rlim_swap = TARGET_RLIM_INFINITY; |
| else |
| target_rlim_swap = rlim; |
| result = tswapal(target_rlim_swap); |
| |
| return result; |
| } |
| #endif |
| |
| static inline int target_to_host_resource(int code) |
| { |
| switch (code) { |
| case TARGET_RLIMIT_AS: |
| return RLIMIT_AS; |
| case TARGET_RLIMIT_CORE: |
| return RLIMIT_CORE; |
| case TARGET_RLIMIT_CPU: |
| return RLIMIT_CPU; |
| case TARGET_RLIMIT_DATA: |
| return RLIMIT_DATA; |
| case TARGET_RLIMIT_FSIZE: |
| return RLIMIT_FSIZE; |
| case TARGET_RLIMIT_LOCKS: |
| return RLIMIT_LOCKS; |
| case TARGET_RLIMIT_MEMLOCK: |
| return RLIMIT_MEMLOCK; |
| case TARGET_RLIMIT_MSGQUEUE: |
| return RLIMIT_MSGQUEUE; |
| case TARGET_RLIMIT_NICE: |
| return RLIMIT_NICE; |
| case TARGET_RLIMIT_NOFILE: |
| return RLIMIT_NOFILE; |
| case TARGET_RLIMIT_NPROC: |
| return RLIMIT_NPROC; |
| case TARGET_RLIMIT_RSS: |
| return RLIMIT_RSS; |
| case TARGET_RLIMIT_RTPRIO: |
| return RLIMIT_RTPRIO; |
| case TARGET_RLIMIT_SIGPENDING: |
| return RLIMIT_SIGPENDING; |
| case TARGET_RLIMIT_STACK: |
| return RLIMIT_STACK; |
| default: |
| return code; |
| } |
| } |
| |
| static inline abi_long copy_from_user_timeval(struct timeval *tv, |
| abi_ulong target_tv_addr) |
| { |
| struct target_timeval *target_tv; |
| |
| if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __get_user(tv->tv_sec, &target_tv->tv_sec); |
| __get_user(tv->tv_usec, &target_tv->tv_usec); |
| |
| unlock_user_struct(target_tv, target_tv_addr, 0); |
| |
| return 0; |
| } |
| |
| static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr, |
| const struct timeval *tv) |
| { |
| struct target_timeval *target_tv; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __put_user(tv->tv_sec, &target_tv->tv_sec); |
| __put_user(tv->tv_usec, &target_tv->tv_usec); |
| |
| unlock_user_struct(target_tv, target_tv_addr, 1); |
| |
| return 0; |
| } |
| |
| static inline abi_long copy_to_user_timeval64(abi_ulong target_tv_addr, |
| const struct timeval *tv) |
| { |
| struct target__kernel_sock_timeval *target_tv; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __put_user(tv->tv_sec, &target_tv->tv_sec); |
| __put_user(tv->tv_usec, &target_tv->tv_usec); |
| |
| unlock_user_struct(target_tv, target_tv_addr, 1); |
| |
| return 0; |
| } |
| |
| #if defined(TARGET_NR_futex) || \ |
| defined(TARGET_NR_rt_sigtimedwait) || \ |
| defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6) || \ |
| defined(TARGET_NR_nanosleep) || defined(TARGET_NR_clock_settime) || \ |
| defined(TARGET_NR_utimensat) || defined(TARGET_NR_mq_timedsend) || \ |
| defined(TARGET_NR_mq_timedreceive) |
| static inline abi_long target_to_host_timespec(struct timespec *host_ts, |
| abi_ulong target_addr) |
| { |
| struct target_timespec *target_ts; |
| |
| if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| __get_user(host_ts->tv_sec, &target_ts->tv_sec); |
| __get_user(host_ts->tv_nsec, &target_ts->tv_nsec); |
| unlock_user_struct(target_ts, target_addr, 0); |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_clock_settime64) || defined(TARGET_NR_futex_time64) |
| static inline abi_long target_to_host_timespec64(struct timespec *host_ts, |
| abi_ulong target_addr) |
| { |
| struct target__kernel_timespec *target_ts; |
| |
| if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| __get_user(host_ts->tv_sec, &target_ts->tv_sec); |
| __get_user(host_ts->tv_nsec, &target_ts->tv_nsec); |
| unlock_user_struct(target_ts, target_addr, 0); |
| return 0; |
| } |
| #endif |
| |
| static inline abi_long host_to_target_timespec(abi_ulong target_addr, |
| struct timespec *host_ts) |
| { |
| struct target_timespec *target_ts; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| __put_user(host_ts->tv_sec, &target_ts->tv_sec); |
| __put_user(host_ts->tv_nsec, &target_ts->tv_nsec); |
| unlock_user_struct(target_ts, target_addr, 1); |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_timespec64(abi_ulong target_addr, |
| struct timespec *host_ts) |
| { |
| struct target__kernel_timespec *target_ts; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| __put_user(host_ts->tv_sec, &target_ts->tv_sec); |
| __put_user(host_ts->tv_nsec, &target_ts->tv_nsec); |
| unlock_user_struct(target_ts, target_addr, 1); |
| return 0; |
| } |
| |
| #if defined(TARGET_NR_gettimeofday) |
| static inline abi_long copy_to_user_timezone(abi_ulong target_tz_addr, |
| struct timezone *tz) |
| { |
| struct target_timezone *target_tz; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_tz, target_tz_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __put_user(tz->tz_minuteswest, &target_tz->tz_minuteswest); |
| __put_user(tz->tz_dsttime, &target_tz->tz_dsttime); |
| |
| unlock_user_struct(target_tz, target_tz_addr, 1); |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_settimeofday) |
| static inline abi_long copy_from_user_timezone(struct timezone *tz, |
| abi_ulong target_tz_addr) |
| { |
| struct target_timezone *target_tz; |
| |
| if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest); |
| __get_user(tz->tz_dsttime, &target_tz->tz_dsttime); |
| |
| unlock_user_struct(target_tz, target_tz_addr, 0); |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) |
| #include <mqueue.h> |
| |
| static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr, |
| abi_ulong target_mq_attr_addr) |
| { |
| struct target_mq_attr *target_mq_attr; |
| |
| if (!lock_user_struct(VERIFY_READ, target_mq_attr, |
| target_mq_attr_addr, 1)) |
| return -TARGET_EFAULT; |
| |
| __get_user(attr->mq_flags, &target_mq_attr->mq_flags); |
| __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); |
| __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); |
| __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); |
| |
| unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0); |
| |
| return 0; |
| } |
| |
| static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr, |
| const struct mq_attr *attr) |
| { |
| struct target_mq_attr *target_mq_attr; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_mq_attr, |
| target_mq_attr_addr, 0)) |
| return -TARGET_EFAULT; |
| |
| __put_user(attr->mq_flags, &target_mq_attr->mq_flags); |
| __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); |
| __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); |
| __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); |
| |
| unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1); |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) |
| /* do_select() must return target values and target errnos. */ |
| static abi_long do_select(int n, |
| abi_ulong rfd_addr, abi_ulong wfd_addr, |
| abi_ulong efd_addr, abi_ulong target_tv_addr) |
| { |
| fd_set rfds, wfds, efds; |
| fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; |
| struct timeval tv; |
| struct timespec ts, *ts_ptr; |
| abi_long ret; |
| |
| ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n); |
| if (ret) { |
| return ret; |
| } |
| ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); |
| if (ret) { |
| return ret; |
| } |
| ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); |
| if (ret) { |
| return ret; |
| } |
| |
| if (target_tv_addr) { |
| if (copy_from_user_timeval(&tv, target_tv_addr)) |
| return -TARGET_EFAULT; |
| ts.tv_sec = tv.tv_sec; |
| ts.tv_nsec = tv.tv_usec * 1000; |
| ts_ptr = &ts; |
| } else { |
| ts_ptr = NULL; |
| } |
| |
| ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr, |
| ts_ptr, NULL)); |
| |
| if (!is_error(ret)) { |
| if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) |
| return -TARGET_EFAULT; |
| if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) |
| return -TARGET_EFAULT; |
| if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) |
| return -TARGET_EFAULT; |
| |
| if (target_tv_addr) { |
| tv.tv_sec = ts.tv_sec; |
| tv.tv_usec = ts.tv_nsec / 1000; |
| if (copy_to_user_timeval(target_tv_addr, &tv)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| |
| return ret; |
| } |
| |
| #if defined(TARGET_WANT_OLD_SYS_SELECT) |
| static abi_long do_old_select(abi_ulong arg1) |
| { |
| struct target_sel_arg_struct *sel; |
| abi_ulong inp, outp, exp, tvp; |
| long nsel; |
| |
| if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| nsel = tswapal(sel->n); |
| inp = tswapal(sel->inp); |
| outp = tswapal(sel->outp); |
| exp = tswapal(sel->exp); |
| tvp = tswapal(sel->tvp); |
| |
| unlock_user_struct(sel, arg1, 0); |
| |
| return do_select(nsel, inp, outp, exp, tvp); |
| } |
| #endif |
| #endif |
| |
| static abi_long do_pipe2(int host_pipe[], int flags) |
| { |
| #ifdef CONFIG_PIPE2 |
| return pipe2(host_pipe, flags); |
| #else |
| return -ENOSYS; |
| #endif |
| } |
| |
| static abi_long do_pipe(void *cpu_env, abi_ulong pipedes, |
| int flags, int is_pipe2) |
| { |
| int host_pipe[2]; |
| abi_long ret; |
| ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe); |
| |
| if (is_error(ret)) |
| return get_errno(ret); |
| |
| /* Several targets have special calling conventions for the original |
| pipe syscall, but didn't replicate this into the pipe2 syscall. */ |
| if (!is_pipe2) { |
| #if defined(TARGET_ALPHA) |
| ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1]; |
| return host_pipe[0]; |
| #elif defined(TARGET_MIPS) |
| ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1]; |
| return host_pipe[0]; |
| #elif defined(TARGET_SH4) |
| ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1]; |
| return host_pipe[0]; |
| #elif defined(TARGET_SPARC) |
| ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1]; |
| return host_pipe[0]; |
| #endif |
| } |
| |
| if (put_user_s32(host_pipe[0], pipedes) |
| || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0]))) |
| return -TARGET_EFAULT; |
| return get_errno(ret); |
| } |
| |
| static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn, |
| abi_ulong target_addr, |
| socklen_t len) |
| { |
| struct target_ip_mreqn *target_smreqn; |
| |
| target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1); |
| if (!target_smreqn) |
| return -TARGET_EFAULT; |
| mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr; |
| mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr; |
| if (len == sizeof(struct target_ip_mreqn)) |
| mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex); |
| unlock_user(target_smreqn, target_addr, 0); |
| |
| return 0; |
| } |
| |
| static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr, |
| abi_ulong target_addr, |
| socklen_t len) |
| { |
| const socklen_t unix_maxlen = sizeof (struct sockaddr_un); |
| sa_family_t sa_family; |
| struct target_sockaddr *target_saddr; |
| |
| if (fd_trans_target_to_host_addr(fd)) { |
| return fd_trans_target_to_host_addr(fd)(addr, target_addr, len); |
| } |
| |
| target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); |
| if (!target_saddr) |
| return -TARGET_EFAULT; |
| |
| sa_family = tswap16(target_saddr->sa_family); |
| |
| /* Oops. The caller might send a incomplete sun_path; sun_path |
| * must be terminated by \0 (see the manual page), but |
| * unfortunately it is quite common to specify sockaddr_un |
| * length as "strlen(x->sun_path)" while it should be |
| * "strlen(...) + 1". We'll fix that here if needed. |
| * Linux kernel has a similar feature. |
| */ |
| |
| if (sa_family == AF_UNIX) { |
| if (len < unix_maxlen && len > 0) { |
| char *cp = (char*)target_saddr; |
| |
| if ( cp[len-1] && !cp[len] ) |
| len++; |
| } |
| if (len > unix_maxlen) |
| len = unix_maxlen; |
| } |
| |
| memcpy(addr, target_saddr, len); |
| addr->sa_family = sa_family; |
| if (sa_family == AF_NETLINK) { |
| struct sockaddr_nl *nladdr; |
| |
| nladdr = (struct sockaddr_nl *)addr; |
| nladdr->nl_pid = tswap32(nladdr->nl_pid); |
| nladdr->nl_groups = tswap32(nladdr->nl_groups); |
| } else if (sa_family == AF_PACKET) { |
| struct target_sockaddr_ll *lladdr; |
| |
| lladdr = (struct target_sockaddr_ll *)addr; |
| lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex); |
| lladdr->sll_hatype = tswap16(lladdr->sll_hatype); |
| } |
| unlock_user(target_saddr, target_addr, 0); |
| |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, |
| struct sockaddr *addr, |
| socklen_t len) |
| { |
| struct target_sockaddr *target_saddr; |
| |
| if (len == 0) { |
| return 0; |
| } |
| assert(addr); |
| |
| target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); |
| if (!target_saddr) |
| return -TARGET_EFAULT; |
| memcpy(target_saddr, addr, len); |
| if (len >= offsetof(struct target_sockaddr, sa_family) + |
| sizeof(target_saddr->sa_family)) { |
| target_saddr->sa_family = tswap16(addr->sa_family); |
| } |
| if (addr->sa_family == AF_NETLINK && |
| len >= sizeof(struct target_sockaddr_nl)) { |
| struct target_sockaddr_nl *target_nl = |
| (struct target_sockaddr_nl *)target_saddr; |
| target_nl->nl_pid = tswap32(target_nl->nl_pid); |
| target_nl->nl_groups = tswap32(target_nl->nl_groups); |
| } else if (addr->sa_family == AF_PACKET) { |
| struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr; |
| target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex); |
| target_ll->sll_hatype = tswap16(target_ll->sll_hatype); |
| } else if (addr->sa_family == AF_INET6 && |
| len >= sizeof(struct target_sockaddr_in6)) { |
| struct target_sockaddr_in6 *target_in6 = |
| (struct target_sockaddr_in6 *)target_saddr; |
| target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id); |
| } |
| unlock_user(target_saddr, target_addr, len); |
| |
| return 0; |
| } |
| |
| static inline abi_long target_to_host_cmsg(struct msghdr *msgh, |
| struct target_msghdr *target_msgh) |
| { |
| struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); |
| abi_long msg_controllen; |
| abi_ulong target_cmsg_addr; |
| struct target_cmsghdr *target_cmsg, *target_cmsg_start; |
| socklen_t space = 0; |
| |
| msg_controllen = tswapal(target_msgh->msg_controllen); |
| if (msg_controllen < sizeof (struct target_cmsghdr)) |
| goto the_end; |
| target_cmsg_addr = tswapal(target_msgh->msg_control); |
| target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); |
| target_cmsg_start = target_cmsg; |
| if (!target_cmsg) |
| return -TARGET_EFAULT; |
| |
| while (cmsg && target_cmsg) { |
| void *data = CMSG_DATA(cmsg); |
| void *target_data = TARGET_CMSG_DATA(target_cmsg); |
| |
| int len = tswapal(target_cmsg->cmsg_len) |
| - sizeof(struct target_cmsghdr); |
| |
| space += CMSG_SPACE(len); |
| if (space > msgh->msg_controllen) { |
| space -= CMSG_SPACE(len); |
| /* This is a QEMU bug, since we allocated the payload |
| * area ourselves (unlike overflow in host-to-target |
| * conversion, which is just the guest giving us a buffer |
| * that's too small). It can't happen for the payload types |
| * we currently support; if it becomes an issue in future |
| * we would need to improve our allocation strategy to |
| * something more intelligent than "twice the size of the |
| * target buffer we're reading from". |
| */ |
| qemu_log_mask(LOG_UNIMP, |
| ("Unsupported ancillary data %d/%d: " |
| "unhandled msg size\n"), |
| tswap32(target_cmsg->cmsg_level), |
| tswap32(target_cmsg->cmsg_type)); |
| break; |
| } |
| |
| if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) { |
| cmsg->cmsg_level = SOL_SOCKET; |
| } else { |
| cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); |
| } |
| cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); |
| cmsg->cmsg_len = CMSG_LEN(len); |
| |
| if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { |
| int *fd = (int *)data; |
| int *target_fd = (int *)target_data; |
| int i, numfds = len / sizeof(int); |
| |
| for (i = 0; i < numfds; i++) { |
| __get_user(fd[i], target_fd + i); |
| } |
| } else if (cmsg->cmsg_level == SOL_SOCKET |
| && cmsg->cmsg_type == SCM_CREDENTIALS) { |
| struct ucred *cred = (struct ucred *)data; |
| struct target_ucred *target_cred = |
| (struct target_ucred *)target_data; |
| |
| __get_user(cred->pid, &target_cred->pid); |
| __get_user(cred->uid, &target_cred->uid); |
| __get_user(cred->gid, &target_cred->gid); |
| } else { |
| qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n", |
| cmsg->cmsg_level, cmsg->cmsg_type); |
| memcpy(data, target_data, len); |
| } |
| |
| cmsg = CMSG_NXTHDR(msgh, cmsg); |
| target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg, |
| target_cmsg_start); |
| } |
| unlock_user(target_cmsg, target_cmsg_addr, 0); |
| the_end: |
| msgh->msg_controllen = space; |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, |
| struct msghdr *msgh) |
| { |
| struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); |
| abi_long msg_controllen; |
| abi_ulong target_cmsg_addr; |
| struct target_cmsghdr *target_cmsg, *target_cmsg_start; |
| socklen_t space = 0; |
| |
| msg_controllen = tswapal(target_msgh->msg_controllen); |
| if (msg_controllen < sizeof (struct target_cmsghdr)) |
| goto the_end; |
| target_cmsg_addr = tswapal(target_msgh->msg_control); |
| target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); |
| target_cmsg_start = target_cmsg; |
| if (!target_cmsg) |
| return -TARGET_EFAULT; |
| |
| while (cmsg && target_cmsg) { |
| void *data = CMSG_DATA(cmsg); |
| void *target_data = TARGET_CMSG_DATA(target_cmsg); |
| |
| int len = cmsg->cmsg_len - sizeof(struct cmsghdr); |
| int tgt_len, tgt_space; |
| |
| /* We never copy a half-header but may copy half-data; |
| * this is Linux's behaviour in put_cmsg(). Note that |
| * truncation here is a guest problem (which we report |
| * to the guest via the CTRUNC bit), unlike truncation |
| * in target_to_host_cmsg, which is a QEMU bug. |
| */ |
| if (msg_controllen < sizeof(struct target_cmsghdr)) { |
| target_msgh->msg_flags |= tswap32(MSG_CTRUNC); |
| break; |
| } |
| |
| if (cmsg->cmsg_level == SOL_SOCKET) { |
| target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET); |
| } else { |
| target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); |
| } |
| target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); |
| |
| /* Payload types which need a different size of payload on |
| * the target must adjust tgt_len here. |
| */ |
| tgt_len = len; |
| switch (cmsg->cmsg_level) { |
| case SOL_SOCKET: |
| switch (cmsg->cmsg_type) { |
| case SO_TIMESTAMP: |
| tgt_len = sizeof(struct target_timeval); |
| break; |
| default: |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) { |
| target_msgh->msg_flags |= tswap32(MSG_CTRUNC); |
| tgt_len = msg_controllen - sizeof(struct target_cmsghdr); |
| } |
| |
| /* We must now copy-and-convert len bytes of payload |
| * into tgt_len bytes of destination space. Bear in mind |
| * that in both source and destination we may be dealing |
| * with a truncated value! |
| */ |
| switch (cmsg->cmsg_level) { |
| case SOL_SOCKET: |
| switch (cmsg->cmsg_type) { |
| case SCM_RIGHTS: |
| { |
| int *fd = (int *)data; |
| int *target_fd = (int *)target_data; |
| int i, numfds = tgt_len / sizeof(int); |
| |
| for (i = 0; i < numfds; i++) { |
| __put_user(fd[i], target_fd + i); |
| } |
| break; |
| } |
| case SO_TIMESTAMP: |
| { |
| struct timeval *tv = (struct timeval *)data; |
| struct target_timeval *target_tv = |
| (struct target_timeval *)target_data; |
| |
| if (len != sizeof(struct timeval) || |
| tgt_len != sizeof(struct target_timeval)) { |
| goto unimplemented; |
| } |
| |
| /* copy struct timeval to target */ |
| __put_user(tv->tv_sec, &target_tv->tv_sec); |
| __put_user(tv->tv_usec, &target_tv->tv_usec); |
| break; |
| } |
| case SCM_CREDENTIALS: |
| { |
| struct ucred *cred = (struct ucred *)data; |
| struct target_ucred *target_cred = |
| (struct target_ucred *)target_data; |
| |
| __put_user(cred->pid, &target_cred->pid); |
| __put_user(cred->uid, &target_cred->uid); |
| __put_user(cred->gid, &target_cred->gid); |
| break; |
| } |
| default: |
| goto unimplemented; |
| } |
| break; |
| |
| case SOL_IP: |
| switch (cmsg->cmsg_type) { |
| case IP_TTL: |
| { |
| uint32_t *v = (uint32_t *)data; |
| uint32_t *t_int = (uint32_t *)target_data; |
| |
| if (len != sizeof(uint32_t) || |
| tgt_len != sizeof(uint32_t)) { |
| goto unimplemented; |
| } |
| __put_user(*v, t_int); |
| break; |
| } |
| case IP_RECVERR: |
| { |
| struct errhdr_t { |
| struct sock_extended_err ee; |
| struct sockaddr_in offender; |
| }; |
| struct errhdr_t *errh = (struct errhdr_t *)data; |
| struct errhdr_t *target_errh = |
| (struct errhdr_t *)target_data; |
| |
| if (len != sizeof(struct errhdr_t) || |
| tgt_len != sizeof(struct errhdr_t)) { |
| goto unimplemented; |
| } |
| __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno); |
| __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin); |
| __put_user(errh->ee.ee_type, &target_errh->ee.ee_type); |
| __put_user(errh->ee.ee_code, &target_errh->ee.ee_code); |
| __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad); |
| __put_user(errh->ee.ee_info, &target_errh->ee.ee_info); |
| __put_user(errh->ee.ee_data, &target_errh->ee.ee_data); |
| host_to_target_sockaddr((unsigned long) &target_errh->offender, |
| (void *) &errh->offender, sizeof(errh->offender)); |
| break; |
| } |
| default: |
| goto unimplemented; |
| } |
| break; |
| |
| case SOL_IPV6: |
| switch (cmsg->cmsg_type) { |
| case IPV6_HOPLIMIT: |
| { |
| uint32_t *v = (uint32_t *)data; |
| uint32_t *t_int = (uint32_t *)target_data; |
| |
| if (len != sizeof(uint32_t) || |
| tgt_len != sizeof(uint32_t)) { |
| goto unimplemented; |
| } |
| __put_user(*v, t_int); |
| break; |
| } |
| case IPV6_RECVERR: |
| { |
| struct errhdr6_t { |
| struct sock_extended_err ee; |
| struct sockaddr_in6 offender; |
| }; |
| struct errhdr6_t *errh = (struct errhdr6_t *)data; |
| struct errhdr6_t *target_errh = |
| (struct errhdr6_t *)target_data; |
| |
| if (len != sizeof(struct errhdr6_t) || |
| tgt_len != sizeof(struct errhdr6_t)) { |
| goto unimplemented; |
| } |
| __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno); |
| __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin); |
| __put_user(errh->ee.ee_type, &target_errh->ee.ee_type); |
| __put_user(errh->ee.ee_code, &target_errh->ee.ee_code); |
| __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad); |
| __put_user(errh->ee.ee_info, &target_errh->ee.ee_info); |
| __put_user(errh->ee.ee_data, &target_errh->ee.ee_data); |
| host_to_target_sockaddr((unsigned long) &target_errh->offender, |
| (void *) &errh->offender, sizeof(errh->offender)); |
| break; |
| } |
| default: |
| goto unimplemented; |
| } |
| break; |
| |
| default: |
| unimplemented: |
| qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n", |
| cmsg->cmsg_level, cmsg->cmsg_type); |
| memcpy(target_data, data, MIN(len, tgt_len)); |
| if (tgt_len > len) { |
| memset(target_data + len, 0, tgt_len - len); |
| } |
| } |
| |
| target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len)); |
| tgt_space = TARGET_CMSG_SPACE(tgt_len); |
| if (msg_controllen < tgt_space) { |
| tgt_space = msg_controllen; |
| } |
| msg_controllen -= tgt_space; |
| space += tgt_space; |
| cmsg = CMSG_NXTHDR(msgh, cmsg); |
| target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg, |
| target_cmsg_start); |
| } |
| unlock_user(target_cmsg, target_cmsg_addr, space); |
| the_end: |
| target_msgh->msg_controllen = tswapal(space); |
| return 0; |
| } |
| |
| /* do_setsockopt() Must return target values and target errnos. */ |
| static abi_long do_setsockopt(int sockfd, int level, int optname, |
| abi_ulong optval_addr, socklen_t optlen) |
| { |
| abi_long ret; |
| int val; |
| struct ip_mreqn *ip_mreq; |
| struct ip_mreq_source *ip_mreq_source; |
| |
| switch(level) { |
| case SOL_TCP: |
| /* TCP options all take an 'int' value. */ |
| if (optlen < sizeof(uint32_t)) |
| return -TARGET_EINVAL; |
| |
| if (get_user_u32(val, optval_addr)) |
| return -TARGET_EFAULT; |
| ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); |
| break; |
| case SOL_IP: |
| switch(optname) { |
| case IP_TOS: |
| case IP_TTL: |
| case IP_HDRINCL: |
| case IP_ROUTER_ALERT: |
| case IP_RECVOPTS: |
| case IP_RETOPTS: |
| case IP_PKTINFO: |
| case IP_MTU_DISCOVER: |
| case IP_RECVERR: |
| case IP_RECVTTL: |
| case IP_RECVTOS: |
| #ifdef IP_FREEBIND |
| case IP_FREEBIND: |
| #endif |
| case IP_MULTICAST_TTL: |
| case IP_MULTICAST_LOOP: |
| val = 0; |
| if (optlen >= sizeof(uint32_t)) { |
| if (get_user_u32(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } else if (optlen >= 1) { |
| if (get_user_u8(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); |
| break; |
| case IP_ADD_MEMBERSHIP: |
| case IP_DROP_MEMBERSHIP: |
| if (optlen < sizeof (struct target_ip_mreq) || |
| optlen > sizeof (struct target_ip_mreqn)) |
| return -TARGET_EINVAL; |
| |
| ip_mreq = (struct ip_mreqn *) alloca(optlen); |
| target_to_host_ip_mreq(ip_mreq, optval_addr, optlen); |
| ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen)); |
| break; |
| |
| case IP_BLOCK_SOURCE: |
| case IP_UNBLOCK_SOURCE: |
| case IP_ADD_SOURCE_MEMBERSHIP: |
| case IP_DROP_SOURCE_MEMBERSHIP: |
| if (optlen != sizeof (struct target_ip_mreq_source)) |
| return -TARGET_EINVAL; |
| |
| ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1); |
| ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen)); |
| unlock_user (ip_mreq_source, optval_addr, 0); |
| break; |
| |
| default: |
| goto unimplemented; |
| } |
| break; |
| case SOL_IPV6: |
| switch (optname) { |
| case IPV6_MTU_DISCOVER: |
| case IPV6_MTU: |
| case IPV6_V6ONLY: |
| case IPV6_RECVPKTINFO: |
| case IPV6_UNICAST_HOPS: |
| case IPV6_MULTICAST_HOPS: |
| case IPV6_MULTICAST_LOOP: |
| case IPV6_RECVERR: |
| case IPV6_RECVHOPLIMIT: |
| case IPV6_2292HOPLIMIT: |
| case IPV6_CHECKSUM: |
| case IPV6_ADDRFORM: |
| case IPV6_2292PKTINFO: |
| case IPV6_RECVTCLASS: |
| case IPV6_RECVRTHDR: |
| case IPV6_2292RTHDR: |
| case IPV6_RECVHOPOPTS: |
| case IPV6_2292HOPOPTS: |
| case IPV6_RECVDSTOPTS: |
| case IPV6_2292DSTOPTS: |
| case IPV6_TCLASS: |
| #ifdef IPV6_RECVPATHMTU |
| case IPV6_RECVPATHMTU: |
| #endif |
| #ifdef IPV6_TRANSPARENT |
| case IPV6_TRANSPARENT: |
| #endif |
| #ifdef IPV6_FREEBIND |
| case IPV6_FREEBIND: |
| #endif |
| #ifdef IPV6_RECVORIGDSTADDR |
| case IPV6_RECVORIGDSTADDR: |
| #endif |
| val = 0; |
| if (optlen < sizeof(uint32_t)) { |
| return -TARGET_EINVAL; |
| } |
| if (get_user_u32(val, optval_addr)) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(setsockopt(sockfd, level, optname, |
| &val, sizeof(val))); |
| break; |
| case IPV6_PKTINFO: |
| { |
| struct in6_pktinfo pki; |
| |
| if (optlen < sizeof(pki)) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (copy_from_user(&pki, optval_addr, sizeof(pki))) { |
| return -TARGET_EFAULT; |
| } |
| |
| pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex); |
| |
| ret = get_errno(setsockopt(sockfd, level, optname, |
| &pki, sizeof(pki))); |
| break; |
| } |
| case IPV6_ADD_MEMBERSHIP: |
| case IPV6_DROP_MEMBERSHIP: |
| { |
| struct ipv6_mreq ipv6mreq; |
| |
| if (optlen < sizeof(ipv6mreq)) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (copy_from_user(&ipv6mreq, optval_addr, sizeof(ipv6mreq))) { |
| return -TARGET_EFAULT; |
| } |
| |
| ipv6mreq.ipv6mr_interface = tswap32(ipv6mreq.ipv6mr_interface); |
| |
| ret = get_errno(setsockopt(sockfd, level, optname, |
| &ipv6mreq, sizeof(ipv6mreq))); |
| break; |
| } |
| default: |
| goto unimplemented; |
| } |
| break; |
| case SOL_ICMPV6: |
| switch (optname) { |
| case ICMPV6_FILTER: |
| { |
| struct icmp6_filter icmp6f; |
| |
| if (optlen > sizeof(icmp6f)) { |
| optlen = sizeof(icmp6f); |
| } |
| |
| if (copy_from_user(&icmp6f, optval_addr, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| |
| for (val = 0; val < 8; val++) { |
| icmp6f.data[val] = tswap32(icmp6f.data[val]); |
| } |
| |
| ret = get_errno(setsockopt(sockfd, level, optname, |
| &icmp6f, optlen)); |
| break; |
| } |
| default: |
| goto unimplemented; |
| } |
| break; |
| case SOL_RAW: |
| switch (optname) { |
| case ICMP_FILTER: |
| case IPV6_CHECKSUM: |
| /* those take an u32 value */ |
| if (optlen < sizeof(uint32_t)) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (get_user_u32(val, optval_addr)) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(setsockopt(sockfd, level, optname, |
| &val, sizeof(val))); |
| break; |
| |
| default: |
| goto unimplemented; |
| } |
| break; |
| #if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE) |
| case SOL_ALG: |
| switch (optname) { |
| case ALG_SET_KEY: |
| { |
| char *alg_key = g_malloc(optlen); |
| |
| if (!alg_key) { |
| return -TARGET_ENOMEM; |
| } |
| if (copy_from_user(alg_key, optval_addr, optlen)) { |
| g_free(alg_key); |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(setsockopt(sockfd, level, optname, |
| alg_key, optlen)); |
| g_free(alg_key); |
| break; |
| } |
| case ALG_SET_AEAD_AUTHSIZE: |
| { |
| ret = get_errno(setsockopt(sockfd, level, optname, |
| NULL, optlen)); |
| break; |
| } |
| default: |
| goto unimplemented; |
| } |
| break; |
| #endif |
| case TARGET_SOL_SOCKET: |
| switch (optname) { |
| case TARGET_SO_RCVTIMEO: |
| { |
| struct timeval tv; |
| |
| optname = SO_RCVTIMEO; |
| |
| set_timeout: |
| if (optlen != sizeof(struct target_timeval)) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (copy_from_user_timeval(&tv, optval_addr)) { |
| return -TARGET_EFAULT; |
| } |
| |
| ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, |
| &tv, sizeof(tv))); |
| return ret; |
| } |
| case TARGET_SO_SNDTIMEO: |
| optname = SO_SNDTIMEO; |
| goto set_timeout; |
| case TARGET_SO_ATTACH_FILTER: |
| { |
| struct target_sock_fprog *tfprog; |
| struct target_sock_filter *tfilter; |
| struct sock_fprog fprog; |
| struct sock_filter *filter; |
| int i; |
| |
| if (optlen != sizeof(*tfprog)) { |
| return -TARGET_EINVAL; |
| } |
| if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| if (!lock_user_struct(VERIFY_READ, tfilter, |
| tswapal(tfprog->filter), 0)) { |
| unlock_user_struct(tfprog, optval_addr, 1); |
| return -TARGET_EFAULT; |
| } |
| |
| fprog.len = tswap16(tfprog->len); |
| filter = g_try_new(struct sock_filter, fprog.len); |
| if (filter == NULL) { |
| unlock_user_struct(tfilter, tfprog->filter, 1); |
| unlock_user_struct(tfprog, optval_addr, 1); |
| return -TARGET_ENOMEM; |
| } |
| for (i = 0; i < fprog.len; i++) { |
| filter[i].code = tswap16(tfilter[i].code); |
| filter[i].jt = tfilter[i].jt; |
| filter[i].jf = tfilter[i].jf; |
| filter[i].k = tswap32(tfilter[i].k); |
| } |
| fprog.filter = filter; |
| |
| ret = get_errno(setsockopt(sockfd, SOL_SOCKET, |
| SO_ATTACH_FILTER, &fprog, sizeof(fprog))); |
| g_free(filter); |
| |
| unlock_user_struct(tfilter, tfprog->filter, 1); |
| unlock_user_struct(tfprog, optval_addr, 1); |
| return ret; |
| } |
| case TARGET_SO_BINDTODEVICE: |
| { |
| char *dev_ifname, *addr_ifname; |
| |
| if (optlen > IFNAMSIZ - 1) { |
| optlen = IFNAMSIZ - 1; |
| } |
| dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1); |
| if (!dev_ifname) { |
| return -TARGET_EFAULT; |
| } |
| optname = SO_BINDTODEVICE; |
| addr_ifname = alloca(IFNAMSIZ); |
| memcpy(addr_ifname, dev_ifname, optlen); |
| addr_ifname[optlen] = 0; |
| ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, |
| addr_ifname, optlen)); |
| unlock_user (dev_ifname, optval_addr, 0); |
| return ret; |
| } |
| case TARGET_SO_LINGER: |
| { |
| struct linger lg; |
| struct target_linger *tlg; |
| |
| if (optlen != sizeof(struct target_linger)) { |
| return -TARGET_EINVAL; |
| } |
| if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| __get_user(lg.l_onoff, &tlg->l_onoff); |
| __get_user(lg.l_linger, &tlg->l_linger); |
| ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER, |
| &lg, sizeof(lg))); |
| unlock_user_struct(tlg, optval_addr, 0); |
| return ret; |
| } |
| /* Options with 'int' argument. */ |
| case TARGET_SO_DEBUG: |
| optname = SO_DEBUG; |
| break; |
| case TARGET_SO_REUSEADDR: |
| optname = SO_REUSEADDR; |
| break; |
| #ifdef SO_REUSEPORT |
| case TARGET_SO_REUSEPORT: |
| optname = SO_REUSEPORT; |
| break; |
| #endif |
| case TARGET_SO_TYPE: |
| optname = SO_TYPE; |
| break; |
| case TARGET_SO_ERROR: |
| optname = SO_ERROR; |
| break; |
| case TARGET_SO_DONTROUTE: |
| optname = SO_DONTROUTE; |
| break; |
| case TARGET_SO_BROADCAST: |
| optname = SO_BROADCAST; |
| break; |
| case TARGET_SO_SNDBUF: |
| optname = SO_SNDBUF; |
| break; |
| case TARGET_SO_SNDBUFFORCE: |
| optname = SO_SNDBUFFORCE; |
| break; |
| case TARGET_SO_RCVBUF: |
| optname = SO_RCVBUF; |
| break; |
| case TARGET_SO_RCVBUFFORCE: |
| optname = SO_RCVBUFFORCE; |
| break; |
| case TARGET_SO_KEEPALIVE: |
| optname = SO_KEEPALIVE; |
| break; |
| case TARGET_SO_OOBINLINE: |
| optname = SO_OOBINLINE; |
| break; |
| case TARGET_SO_NO_CHECK: |
| optname = SO_NO_CHECK; |
| break; |
| case TARGET_SO_PRIORITY: |
| optname = SO_PRIORITY; |
| break; |
| #ifdef SO_BSDCOMPAT |
| case TARGET_SO_BSDCOMPAT: |
| optname = SO_BSDCOMPAT; |
| break; |
| #endif |
| case TARGET_SO_PASSCRED: |
| optname = SO_PASSCRED; |
| break; |
| case TARGET_SO_PASSSEC: |
| optname = SO_PASSSEC; |
| break; |
| case TARGET_SO_TIMESTAMP: |
| optname = SO_TIMESTAMP; |
| break; |
| case TARGET_SO_RCVLOWAT: |
| optname = SO_RCVLOWAT; |
| break; |
| default: |
| goto unimplemented; |
| } |
| if (optlen < sizeof(uint32_t)) |
| return -TARGET_EINVAL; |
| |
| if (get_user_u32(val, optval_addr)) |
| return -TARGET_EFAULT; |
| ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); |
| break; |
| #ifdef SOL_NETLINK |
| case SOL_NETLINK: |
| switch (optname) { |
| case NETLINK_PKTINFO: |
| case NETLINK_ADD_MEMBERSHIP: |
| case NETLINK_DROP_MEMBERSHIP: |
| case NETLINK_BROADCAST_ERROR: |
| case NETLINK_NO_ENOBUFS: |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) |
| case NETLINK_LISTEN_ALL_NSID: |
| case NETLINK_CAP_ACK: |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */ |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) |
| case NETLINK_EXT_ACK: |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */ |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0) |
| case NETLINK_GET_STRICT_CHK: |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */ |
| break; |
| default: |
| goto unimplemented; |
| } |
| val = 0; |
| if (optlen < sizeof(uint32_t)) { |
| return -TARGET_EINVAL; |
| } |
| if (get_user_u32(val, optval_addr)) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(setsockopt(sockfd, SOL_NETLINK, optname, &val, |
| sizeof(val))); |
| break; |
| #endif /* SOL_NETLINK */ |
| default: |
| unimplemented: |
| qemu_log_mask(LOG_UNIMP, "Unsupported setsockopt level=%d optname=%d\n", |
| level, optname); |
| ret = -TARGET_ENOPROTOOPT; |
| } |
| return ret; |
| } |
| |
| /* do_getsockopt() Must return target values and target errnos. */ |
| static abi_long do_getsockopt(int sockfd, int level, int optname, |
| abi_ulong optval_addr, abi_ulong optlen) |
| { |
| abi_long ret; |
| int len, val; |
| socklen_t lv; |
| |
| switch(level) { |
| case TARGET_SOL_SOCKET: |
| level = SOL_SOCKET; |
| switch (optname) { |
| /* These don't just return a single integer */ |
| case TARGET_SO_PEERNAME: |
| goto unimplemented; |
| case TARGET_SO_RCVTIMEO: { |
| struct timeval tv; |
| socklen_t tvlen; |
| |
| optname = SO_RCVTIMEO; |
| |
| get_timeout: |
| if (get_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| if (len < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| tvlen = sizeof(tv); |
| ret = get_errno(getsockopt(sockfd, level, optname, |
| &tv, &tvlen)); |
| if (ret < 0) { |
| return ret; |
| } |
| if (len > sizeof(struct target_timeval)) { |
| len = sizeof(struct target_timeval); |
| } |
| if (copy_to_user_timeval(optval_addr, &tv)) { |
| return -TARGET_EFAULT; |
| } |
| if (put_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| break; |
| } |
| case TARGET_SO_SNDTIMEO: |
| optname = SO_SNDTIMEO; |
| goto get_timeout; |
| case TARGET_SO_PEERCRED: { |
| struct ucred cr; |
| socklen_t crlen; |
| struct target_ucred *tcr; |
| |
| if (get_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| if (len < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| crlen = sizeof(cr); |
| ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED, |
| &cr, &crlen)); |
| if (ret < 0) { |
| return ret; |
| } |
| if (len > crlen) { |
| len = crlen; |
| } |
| if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| __put_user(cr.pid, &tcr->pid); |
| __put_user(cr.uid, &tcr->uid); |
| __put_user(cr.gid, &tcr->gid); |
| unlock_user_struct(tcr, optval_addr, 1); |
| if (put_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| break; |
| } |
| case TARGET_SO_PEERSEC: { |
| char *name; |
| |
| if (get_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| if (len < 0) { |
| return -TARGET_EINVAL; |
| } |
| name = lock_user(VERIFY_WRITE, optval_addr, len, 0); |
| if (!name) { |
| return -TARGET_EFAULT; |
| } |
| lv = len; |
| ret = get_errno(getsockopt(sockfd, level, SO_PEERSEC, |
| name, &lv)); |
| if (put_user_u32(lv, optlen)) { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(name, optval_addr, lv); |
| break; |
| } |
| case TARGET_SO_LINGER: |
| { |
| struct linger lg; |
| socklen_t lglen; |
| struct target_linger *tlg; |
| |
| if (get_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| if (len < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| lglen = sizeof(lg); |
| ret = get_errno(getsockopt(sockfd, level, SO_LINGER, |
| &lg, &lglen)); |
| if (ret < 0) { |
| return ret; |
| } |
| if (len > lglen) { |
| len = lglen; |
| } |
| if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| __put_user(lg.l_onoff, &tlg->l_onoff); |
| __put_user(lg.l_linger, &tlg->l_linger); |
| unlock_user_struct(tlg, optval_addr, 1); |
| if (put_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| break; |
| } |
| /* Options with 'int' argument. */ |
| case TARGET_SO_DEBUG: |
| optname = SO_DEBUG; |
| goto int_case; |
| case TARGET_SO_REUSEADDR: |
| optname = SO_REUSEADDR; |
| goto int_case; |
| #ifdef SO_REUSEPORT |
| case TARGET_SO_REUSEPORT: |
| optname = SO_REUSEPORT; |
| goto int_case; |
| #endif |
| case TARGET_SO_TYPE: |
| optname = SO_TYPE; |
| goto int_case; |
| case TARGET_SO_ERROR: |
| optname = SO_ERROR; |
| goto int_case; |
| case TARGET_SO_DONTROUTE: |
| optname = SO_DONTROUTE; |
| goto int_case; |
| case TARGET_SO_BROADCAST: |
| optname = SO_BROADCAST; |
| goto int_case; |
| case TARGET_SO_SNDBUF: |
| optname = SO_SNDBUF; |
| goto int_case; |
| case TARGET_SO_RCVBUF: |
| optname = SO_RCVBUF; |
| goto int_case; |
| case TARGET_SO_KEEPALIVE: |
| optname = SO_KEEPALIVE; |
| goto int_case; |
| case TARGET_SO_OOBINLINE: |
| optname = SO_OOBINLINE; |
| goto int_case; |
| case TARGET_SO_NO_CHECK: |
| optname = SO_NO_CHECK; |
| goto int_case; |
| case TARGET_SO_PRIORITY: |
| optname = SO_PRIORITY; |
| goto int_case; |
| #ifdef SO_BSDCOMPAT |
| case TARGET_SO_BSDCOMPAT: |
| optname = SO_BSDCOMPAT; |
| goto int_case; |
| #endif |
| case TARGET_SO_PASSCRED: |
| optname = SO_PASSCRED; |
| goto int_case; |
| case TARGET_SO_TIMESTAMP: |
| optname = SO_TIMESTAMP; |
| goto int_case; |
| case TARGET_SO_RCVLOWAT: |
| optname = SO_RCVLOWAT; |
| goto int_case; |
| case TARGET_SO_ACCEPTCONN: |
| optname = SO_ACCEPTCONN; |
| goto int_case; |
| default: |
| goto int_case; |
| } |
| break; |
| case SOL_TCP: |
| /* TCP options all take an 'int' value. */ |
| int_case: |
| if (get_user_u32(len, optlen)) |
| return -TARGET_EFAULT; |
| if (len < 0) |
| return -TARGET_EINVAL; |
| lv = sizeof(lv); |
| ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); |
| if (ret < 0) |
| return ret; |
| if (optname == SO_TYPE) { |
| val = host_to_target_sock_type(val); |
| } |
| if (len > lv) |
| len = lv; |
| if (len == 4) { |
| if (put_user_u32(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } else { |
| if (put_user_u8(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } |
| if (put_user_u32(len, optlen)) |
| return -TARGET_EFAULT; |
| break; |
| case SOL_IP: |
| switch(optname) { |
| case IP_TOS: |
| case IP_TTL: |
| case IP_HDRINCL: |
| case IP_ROUTER_ALERT: |
| case IP_RECVOPTS: |
| case IP_RETOPTS: |
| case IP_PKTINFO: |
| case IP_MTU_DISCOVER: |
| case IP_RECVERR: |
| case IP_RECVTOS: |
| #ifdef IP_FREEBIND |
| case IP_FREEBIND: |
| #endif |
| case IP_MULTICAST_TTL: |
| case IP_MULTICAST_LOOP: |
| if (get_user_u32(len, optlen)) |
| return -TARGET_EFAULT; |
| if (len < 0) |
| return -TARGET_EINVAL; |
| lv = sizeof(lv); |
| ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); |
| if (ret < 0) |
| return ret; |
| if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { |
| len = 1; |
| if (put_user_u32(len, optlen) |
| || put_user_u8(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } else { |
| if (len > sizeof(int)) |
| len = sizeof(int); |
| if (put_user_u32(len, optlen) |
| || put_user_u32(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } |
| break; |
| default: |
| ret = -TARGET_ENOPROTOOPT; |
| break; |
| } |
| break; |
| case SOL_IPV6: |
| switch (optname) { |
| case IPV6_MTU_DISCOVER: |
| case IPV6_MTU: |
| case IPV6_V6ONLY: |
| case IPV6_RECVPKTINFO: |
| case IPV6_UNICAST_HOPS: |
| case IPV6_MULTICAST_HOPS: |
| case IPV6_MULTICAST_LOOP: |
| case IPV6_RECVERR: |
| case IPV6_RECVHOPLIMIT: |
| case IPV6_2292HOPLIMIT: |
| case IPV6_CHECKSUM: |
| case IPV6_ADDRFORM: |
| case IPV6_2292PKTINFO: |
| case IPV6_RECVTCLASS: |
| case IPV6_RECVRTHDR: |
| case IPV6_2292RTHDR: |
| case IPV6_RECVHOPOPTS: |
| case IPV6_2292HOPOPTS: |
| case IPV6_RECVDSTOPTS: |
| case IPV6_2292DSTOPTS: |
| case IPV6_TCLASS: |
| #ifdef IPV6_RECVPATHMTU |
| case IPV6_RECVPATHMTU: |
| #endif |
| #ifdef IPV6_TRANSPARENT |
| case IPV6_TRANSPARENT: |
| #endif |
| #ifdef IPV6_FREEBIND |
| case IPV6_FREEBIND: |
| #endif |
| #ifdef IPV6_RECVORIGDSTADDR |
| case IPV6_RECVORIGDSTADDR: |
| #endif |
| if (get_user_u32(len, optlen)) |
| return -TARGET_EFAULT; |
| if (len < 0) |
| return -TARGET_EINVAL; |
| lv = sizeof(lv); |
| ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); |
| if (ret < 0) |
| return ret; |
| if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { |
| len = 1; |
| if (put_user_u32(len, optlen) |
| || put_user_u8(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } else { |
| if (len > sizeof(int)) |
| len = sizeof(int); |
| if (put_user_u32(len, optlen) |
| || put_user_u32(val, optval_addr)) |
| return -TARGET_EFAULT; |
| } |
| break; |
| default: |
| ret = -TARGET_ENOPROTOOPT; |
| break; |
| } |
| break; |
| #ifdef SOL_NETLINK |
| case SOL_NETLINK: |
| switch (optname) { |
| case NETLINK_PKTINFO: |
| case NETLINK_BROADCAST_ERROR: |
| case NETLINK_NO_ENOBUFS: |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) |
| case NETLINK_LISTEN_ALL_NSID: |
| case NETLINK_CAP_ACK: |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */ |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) |
| case NETLINK_EXT_ACK: |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */ |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0) |
| case NETLINK_GET_STRICT_CHK: |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0) */ |
| if (get_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| if (len != sizeof(val)) { |
| return -TARGET_EINVAL; |
| } |
| lv = len; |
| ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); |
| if (ret < 0) { |
| return ret; |
| } |
| if (put_user_u32(lv, optlen) |
| || put_user_u32(val, optval_addr)) { |
| return -TARGET_EFAULT; |
| } |
| break; |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) |
| case NETLINK_LIST_MEMBERSHIPS: |
| { |
| uint32_t *results; |
| int i; |
| if (get_user_u32(len, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| if (len < 0) { |
| return -TARGET_EINVAL; |
| } |
| results = lock_user(VERIFY_WRITE, optval_addr, len, 1); |
| if (!results) { |
| return -TARGET_EFAULT; |
| } |
| lv = len; |
| ret = get_errno(getsockopt(sockfd, level, optname, results, &lv)); |
| if (ret < 0) { |
| unlock_user(results, optval_addr, 0); |
| return ret; |
| } |
| /* swap host endianess to target endianess. */ |
| for (i = 0; i < (len / sizeof(uint32_t)); i++) { |
| results[i] = tswap32(results[i]); |
| } |
| if (put_user_u32(lv, optlen)) { |
| return -TARGET_EFAULT; |
| } |
| unlock_user(results, optval_addr, 0); |
| break; |
| } |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0) */ |
| default: |
| goto unimplemented; |
| } |
| break; |
| #endif /* SOL_NETLINK */ |
| default: |
| unimplemented: |
| qemu_log_mask(LOG_UNIMP, |
| "getsockopt level=%d optname=%d not yet supported\n", |
| level, optname); |
| ret = -TARGET_EOPNOTSUPP; |
| break; |
| } |
| return ret; |
| } |
| |
| /* Convert target low/high pair representing file offset into the host |
| * low/high pair. This function doesn't handle offsets bigger than 64 bits |
| * as the kernel doesn't handle them either. |
| */ |
| static void target_to_host_low_high(abi_ulong tlow, |
| abi_ulong thigh, |
| unsigned long *hlow, |
| unsigned long *hhigh) |
| { |
| uint64_t off = tlow | |
| ((unsigned long long)thigh << TARGET_LONG_BITS / 2) << |
| TARGET_LONG_BITS / 2; |
| |
| *hlow = off; |
| *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2; |
| } |
| |
| static struct iovec *lock_iovec(int type, abi_ulong target_addr, |
| abi_ulong count, int copy) |
| { |
| struct target_iovec *target_vec; |
| struct iovec *vec; |
| abi_ulong total_len, max_len; |
| int i; |
| int err = 0; |
| bool bad_address = false; |
| |
| if (count == 0) { |
| errno = 0; |
| return NULL; |
| } |
| if (count > IOV_MAX) { |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| vec = g_try_new0(struct iovec, count); |
| if (vec == NULL) { |
| errno = ENOMEM; |
| return NULL; |
| } |
| |
| target_vec = lock_user(VERIFY_READ, target_addr, |
| count * sizeof(struct target_iovec), 1); |
| if (target_vec == NULL) { |
| err = EFAULT; |
| goto fail2; |
| } |
| |
| /* ??? If host page size > target page size, this will result in a |
| value larger than what we can actually support. */ |
| max_len = 0x7fffffff & TARGET_PAGE_MASK; |
| total_len = 0; |
| |
| for (i = 0; i < count; i++) { |
| abi_ulong base = tswapal(target_vec[i].iov_base); |
| abi_long len = tswapal(target_vec[i].iov_len); |
| |
| if (len < 0) { |
| err = EINVAL; |
| goto fail; |
| } else if (len == 0) { |
| /* Zero length pointer is ignored. */ |
| vec[i].iov_base = 0; |
| } else { |
| vec[i].iov_base = lock_user(type, base, len, copy); |
| /* If the first buffer pointer is bad, this is a fault. But |
| * subsequent bad buffers will result in a partial write; this |
| * is realized by filling the vector with null pointers and |
| * zero lengths. */ |
| if (!vec[i].iov_base) { |
| if (i == 0) { |
| err = EFAULT; |
| goto fail; |
| } else { |
| bad_address = true; |
| } |
| } |
| if (bad_address) { |
| len = 0; |
| } |
| if (len > max_len - total_len) { |
| len = max_len - total_len; |
| } |
| } |
| vec[i].iov_len = len; |
| total_len += len; |
| } |
| |
| unlock_user(target_vec, target_addr, 0); |
| return vec; |
| |
| fail: |
| while (--i >= 0) { |
| if (tswapal(target_vec[i].iov_len) > 0) { |
| unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0); |
| } |
| } |
| unlock_user(target_vec, target_addr, 0); |
| fail2: |
| g_free(vec); |
| errno = err; |
| return NULL; |
| } |
| |
| static void unlock_iovec(struct iovec *vec, abi_ulong target_addr, |
| abi_ulong count, int copy) |
| { |
| struct target_iovec *target_vec; |
| int i; |
| |
| target_vec = lock_user(VERIFY_READ, target_addr, |
| count * sizeof(struct target_iovec), 1); |
| if (target_vec) { |
| for (i = 0; i < count; i++) { |
| abi_ulong base = tswapal(target_vec[i].iov_base); |
| abi_long len = tswapal(target_vec[i].iov_len); |
| if (len < 0) { |
| break; |
| } |
| unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); |
| } |
| unlock_user(target_vec, target_addr, 0); |
| } |
| |
| g_free(vec); |
| } |
| |
| static inline int target_to_host_sock_type(int *type) |
| { |
| int host_type = 0; |
| int target_type = *type; |
| |
| switch (target_type & TARGET_SOCK_TYPE_MASK) { |
| case TARGET_SOCK_DGRAM: |
| host_type = SOCK_DGRAM; |
| break; |
| case TARGET_SOCK_STREAM: |
| host_type = SOCK_STREAM; |
| break; |
| default: |
| host_type = target_type & TARGET_SOCK_TYPE_MASK; |
| break; |
| } |
| if (target_type & TARGET_SOCK_CLOEXEC) { |
| #if defined(SOCK_CLOEXEC) |
| host_type |= SOCK_CLOEXEC; |
| #else |
| return -TARGET_EINVAL; |
| #endif |
| } |
| if (target_type & TARGET_SOCK_NONBLOCK) { |
| #if defined(SOCK_NONBLOCK) |
| host_type |= SOCK_NONBLOCK; |
| #elif !defined(O_NONBLOCK) |
| return -TARGET_EINVAL; |
| #endif |
| } |
| *type = host_type; |
| return 0; |
| } |
| |
| /* Try to emulate socket type flags after socket creation. */ |
| static int sock_flags_fixup(int fd, int target_type) |
| { |
| #if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK) |
| if (target_type & TARGET_SOCK_NONBLOCK) { |
| int flags = fcntl(fd, F_GETFL); |
| if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) { |
| close(fd); |
| return -TARGET_EINVAL; |
| } |
| } |
| #endif |
| return fd; |
| } |
| |
| /* do_socket() Must return target values and target errnos. */ |
| static abi_long do_socket(int domain, int type, int protocol) |
| { |
| int target_type = type; |
| int ret; |
| |
| ret = target_to_host_sock_type(&type); |
| if (ret) { |
| return ret; |
| } |
| |
| if (domain == PF_NETLINK && !( |
| #ifdef CONFIG_RTNETLINK |
| protocol == NETLINK_ROUTE || |
| #endif |
| protocol == NETLINK_KOBJECT_UEVENT || |
| protocol == NETLINK_AUDIT)) { |
| return -TARGET_EPFNOSUPPORT; |
| } |
| |
| if (domain == AF_PACKET || |
| (domain == AF_INET && type == SOCK_PACKET)) { |
| protocol = tswap16(protocol); |
| } |
| |
| ret = get_errno(socket(domain, type, protocol)); |
| if (ret >= 0) { |
| ret = sock_flags_fixup(ret, target_type); |
| if (type == SOCK_PACKET) { |
| /* Manage an obsolete case : |
| * if socket type is SOCK_PACKET, bind by name |
| */ |
| fd_trans_register(ret, &target_packet_trans); |
| } else if (domain == PF_NETLINK) { |
| switch (protocol) { |
| #ifdef CONFIG_RTNETLINK |
| case NETLINK_ROUTE: |
| fd_trans_register(ret, &target_netlink_route_trans); |
| break; |
| #endif |
| case NETLINK_KOBJECT_UEVENT: |
| /* nothing to do: messages are strings */ |
| break; |
| case NETLINK_AUDIT: |
| fd_trans_register(ret, &target_netlink_audit_trans); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| } |
| return ret; |
| } |
| |
| /* do_bind() Must return target values and target errnos. */ |
| static abi_long do_bind(int sockfd, abi_ulong target_addr, |
| socklen_t addrlen) |
| { |
| void *addr; |
| abi_long ret; |
| |
| if ((int)addrlen < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| addr = alloca(addrlen+1); |
| |
| ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen); |
| if (ret) |
| return ret; |
| |
| return get_errno(bind(sockfd, addr, addrlen)); |
| } |
| |
| /* do_connect() Must return target values and target errnos. */ |
| static abi_long do_connect(int sockfd, abi_ulong target_addr, |
| socklen_t addrlen) |
| { |
| void *addr; |
| abi_long ret; |
| |
| if ((int)addrlen < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| addr = alloca(addrlen+1); |
| |
| ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen); |
| if (ret) |
| return ret; |
| |
| return get_errno(safe_connect(sockfd, addr, addrlen)); |
| } |
| |
| /* do_sendrecvmsg_locked() Must return target values and target errnos. */ |
| static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp, |
| int flags, int send) |
| { |
| abi_long ret, len; |
| struct msghdr msg; |
| abi_ulong count; |
| struct iovec *vec; |
| abi_ulong target_vec; |
| |
| if (msgp->msg_name) { |
| msg.msg_namelen = tswap32(msgp->msg_namelen); |
| msg.msg_name = alloca(msg.msg_namelen+1); |
| ret = target_to_host_sockaddr(fd, msg.msg_name, |
| tswapal(msgp->msg_name), |
| msg.msg_namelen); |
| if (ret == -TARGET_EFAULT) { |
| /* For connected sockets msg_name and msg_namelen must |
| * be ignored, so returning EFAULT immediately is wrong. |
| * Instead, pass a bad msg_name to the host kernel, and |
| * let it decide whether to return EFAULT or not. |
| */ |
| msg.msg_name = (void *)-1; |
| } else if (ret) { |
| goto out2; |
| } |
| } else { |
| msg.msg_name = NULL; |
| msg.msg_namelen = 0; |
| } |
| msg.msg_controllen = 2 * tswapal(msgp->msg_controllen); |
| msg.msg_control = alloca(msg.msg_controllen); |
| memset(msg.msg_control, 0, msg.msg_controllen); |
| |
| msg.msg_flags = tswap32(msgp->msg_flags); |
| |
| count = tswapal(msgp->msg_iovlen); |
| target_vec = tswapal(msgp->msg_iov); |
| |
| if (count > IOV_MAX) { |
| /* sendrcvmsg returns a different errno for this condition than |
| * readv/writev, so we must catch it here before lock_iovec() does. |
| */ |
| ret = -TARGET_EMSGSIZE; |
| goto out2; |
| } |
| |
| vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, |
| target_vec, count, send); |
| if (vec == NULL) { |
| ret = -host_to_target_errno(errno); |
| goto out2; |
| } |
| msg.msg_iovlen = count; |
| msg.msg_iov = vec; |
| |
| if (send) { |
| if (fd_trans_target_to_host_data(fd)) { |
| void *host_msg; |
| |
| host_msg = g_malloc(msg.msg_iov->iov_len); |
| memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len); |
| ret = fd_trans_target_to_host_data(fd)(host_msg, |
| msg.msg_iov->iov_len); |
| if (ret >= 0) { |
| msg.msg_iov->iov_base = host_msg; |
| ret = get_errno(safe_sendmsg(fd, &msg, flags)); |
| } |
| g_free(host_msg); |
| } else { |
| ret = target_to_host_cmsg(&msg, msgp); |
| if (ret == 0) { |
| ret = get_errno(safe_sendmsg(fd, &msg, flags)); |
| } |
| } |
| } else { |
| ret = get_errno(safe_recvmsg(fd, &msg, flags)); |
| if (!is_error(ret)) { |
| len = ret; |
| if (fd_trans_host_to_target_data(fd)) { |
| ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base, |
| MIN(msg.msg_iov->iov_len, len)); |
| } else { |
| ret = host_to_target_cmsg(msgp, &msg); |
| } |
| if (!is_error(ret)) { |
| msgp->msg_namelen = tswap32(msg.msg_namelen); |
| msgp->msg_flags = tswap32(msg.msg_flags); |
| if (msg.msg_name != NULL && msg.msg_name != (void *)-1) { |
| ret = host_to_target_sockaddr(tswapal(msgp->msg_name), |
| msg.msg_name, msg.msg_namelen); |
| if (ret) { |
| goto out; |
| } |
| } |
| |
| ret = len; |
| } |
| } |
| } |
| |
| out: |
| unlock_iovec(vec, target_vec, count, !send); |
| out2: |
| return ret; |
| } |
| |
| static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, |
| int flags, int send) |
| { |
| abi_long ret; |
| struct target_msghdr *msgp; |
| |
| if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, |
| msgp, |
| target_msg, |
| send ? 1 : 0)) { |
| return -TARGET_EFAULT; |
| } |
| ret = do_sendrecvmsg_locked(fd, msgp, flags, send); |
| unlock_user_struct(msgp, target_msg, send ? 0 : 1); |
| return ret; |
| } |
| |
| /* We don't rely on the C library to have sendmmsg/recvmmsg support, |
| * so it might not have this *mmsg-specific flag either. |
| */ |
| #ifndef MSG_WAITFORONE |
| #define MSG_WAITFORONE 0x10000 |
| #endif |
| |
| static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec, |
| unsigned int vlen, unsigned int flags, |
| int send) |
| { |
| struct target_mmsghdr *mmsgp; |
| abi_long ret = 0; |
| int i; |
| |
| if (vlen > UIO_MAXIOV) { |
| vlen = UIO_MAXIOV; |
| } |
| |
| mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1); |
| if (!mmsgp) { |
| return -TARGET_EFAULT; |
| } |
| |
| for (i = 0; i < vlen; i++) { |
| ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send); |
| if (is_error(ret)) { |
| break; |
| } |
| mmsgp[i].msg_len = tswap32(ret); |
| /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */ |
| if (flags & MSG_WAITFORONE) { |
| flags |= MSG_DONTWAIT; |
| } |
| } |
| |
| unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i); |
| |
| /* Return number of datagrams sent if we sent any at all; |
| * otherwise return the error. |
| */ |
| if (i) { |
| return i; |
| } |
| return ret; |
| } |
| |
| /* do_accept4() Must return target values and target errnos. */ |
| static abi_long do_accept4(int fd, abi_ulong target_addr, |
| abi_ulong target_addrlen_addr, int flags) |
| { |
| socklen_t addrlen, ret_addrlen; |
| void *addr; |
| abi_long ret; |
| int host_flags; |
| |
| host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl); |
| |
| if (target_addr == 0) { |
| return get_errno(safe_accept4(fd, NULL, NULL, host_flags)); |
| } |
| |
| /* linux returns EINVAL if addrlen pointer is invalid */ |
| if (get_user_u32(addrlen, target_addrlen_addr)) |
| return -TARGET_EINVAL; |
| |
| if ((int)addrlen < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) |
| return -TARGET_EINVAL; |
| |
| addr = alloca(addrlen); |
| |
| ret_addrlen = addrlen; |
| ret = get_errno(safe_accept4(fd, addr, &ret_addrlen, host_flags)); |
| if (!is_error(ret)) { |
| host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen)); |
| if (put_user_u32(ret_addrlen, target_addrlen_addr)) { |
| ret = -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| } |
| |
| /* do_getpeername() Must return target values and target errnos. */ |
| static abi_long do_getpeername(int fd, abi_ulong target_addr, |
| abi_ulong target_addrlen_addr) |
| { |
| socklen_t addrlen, ret_addrlen; |
| void *addr; |
| abi_long ret; |
| |
| if (get_user_u32(addrlen, target_addrlen_addr)) |
| return -TARGET_EFAULT; |
| |
| if ((int)addrlen < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) |
| return -TARGET_EFAULT; |
| |
| addr = alloca(addrlen); |
| |
| ret_addrlen = addrlen; |
| ret = get_errno(getpeername(fd, addr, &ret_addrlen)); |
| if (!is_error(ret)) { |
| host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen)); |
| if (put_user_u32(ret_addrlen, target_addrlen_addr)) { |
| ret = -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| } |
| |
| /* do_getsockname() Must return target values and target errnos. */ |
| static abi_long do_getsockname(int fd, abi_ulong target_addr, |
| abi_ulong target_addrlen_addr) |
| { |
| socklen_t addrlen, ret_addrlen; |
| void *addr; |
| abi_long ret; |
| |
| if (get_user_u32(addrlen, target_addrlen_addr)) |
| return -TARGET_EFAULT; |
| |
| if ((int)addrlen < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) |
| return -TARGET_EFAULT; |
| |
| addr = alloca(addrlen); |
| |
| ret_addrlen = addrlen; |
| ret = get_errno(getsockname(fd, addr, &ret_addrlen)); |
| if (!is_error(ret)) { |
| host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen)); |
| if (put_user_u32(ret_addrlen, target_addrlen_addr)) { |
| ret = -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| } |
| |
| /* do_socketpair() Must return target values and target errnos. */ |
| static abi_long do_socketpair(int domain, int type, int protocol, |
| abi_ulong target_tab_addr) |
| { |
| int tab[2]; |
| abi_long ret; |
| |
| target_to_host_sock_type(&type); |
| |
| ret = get_errno(socketpair(domain, type, protocol, tab)); |
| if (!is_error(ret)) { |
| if (put_user_s32(tab[0], target_tab_addr) |
| || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) |
| ret = -TARGET_EFAULT; |
| } |
| return ret; |
| } |
| |
| /* do_sendto() Must return target values and target errnos. */ |
| static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, |
| abi_ulong target_addr, socklen_t addrlen) |
| { |
| void *addr; |
| void *host_msg; |
| void *copy_msg = NULL; |
| abi_long ret; |
| |
| if ((int)addrlen < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| host_msg = lock_user(VERIFY_READ, msg, len, 1); |
| if (!host_msg) |
| return -TARGET_EFAULT; |
| if (fd_trans_target_to_host_data(fd)) { |
| copy_msg = host_msg; |
| host_msg = g_malloc(len); |
| memcpy(host_msg, copy_msg, len); |
| ret = fd_trans_target_to_host_data(fd)(host_msg, len); |
| if (ret < 0) { |
| goto fail; |
| } |
| } |
| if (target_addr) { |
| addr = alloca(addrlen+1); |
| ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen); |
| if (ret) { |
| goto fail; |
| } |
| ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen)); |
| } else { |
| ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0)); |
| } |
| fail: |
| if (copy_msg) { |
| g_free(host_msg); |
| host_msg = copy_msg; |
| } |
| unlock_user(host_msg, msg, 0); |
| return ret; |
| } |
| |
| /* do_recvfrom() Must return target values and target errnos. */ |
| static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, |
| abi_ulong target_addr, |
| abi_ulong target_addrlen) |
| { |
| socklen_t addrlen, ret_addrlen; |
| void *addr; |
| void *host_msg; |
| abi_long ret; |
| |
| host_msg = lock_user(VERIFY_WRITE, msg, len, 0); |
| if (!host_msg) |
| return -TARGET_EFAULT; |
| if (target_addr) { |
| if (get_user_u32(addrlen, target_addrlen)) { |
| ret = -TARGET_EFAULT; |
| goto fail; |
| } |
| if ((int)addrlen < 0) { |
| ret = -TARGET_EINVAL; |
| goto fail; |
| } |
| addr = alloca(addrlen); |
| ret_addrlen = addrlen; |
| ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, |
| addr, &ret_addrlen)); |
| } else { |
| addr = NULL; /* To keep compiler quiet. */ |
| addrlen = 0; /* To keep compiler quiet. */ |
| ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0)); |
| } |
| if (!is_error(ret)) { |
| if (fd_trans_host_to_target_data(fd)) { |
| abi_long trans; |
| trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len)); |
| if (is_error(trans)) { |
| ret = trans; |
| goto fail; |
| } |
| } |
| if (target_addr) { |
| host_to_target_sockaddr(target_addr, addr, |
| MIN(addrlen, ret_addrlen)); |
| if (put_user_u32(ret_addrlen, target_addrlen)) { |
| ret = -TARGET_EFAULT; |
| goto fail; |
| } |
| } |
| unlock_user(host_msg, msg, len); |
| } else { |
| fail: |
| unlock_user(host_msg, msg, 0); |
| } |
| return ret; |
| } |
| |
| #ifdef TARGET_NR_socketcall |
| /* do_socketcall() must return target values and target errnos. */ |
| static abi_long do_socketcall(int num, abi_ulong vptr) |
| { |
| static const unsigned nargs[] = { /* number of arguments per operation */ |
| [TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */ |
| [TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */ |
| [TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */ |
| [TARGET_SYS_LISTEN] = 2, /* fd, backlog */ |
| [TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */ |
| [TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */ |
| [TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */ |
| [TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */ |
| [TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */ |
| [TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */ |
| [TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */ |
| [TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */ |
| [TARGET_SYS_SHUTDOWN] = 2, /* fd, how */ |
| [TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */ |
| [TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */ |
| [TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */ |
| [TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */ |
| [TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */ |
| [TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */ |
| [TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */ |
| }; |
| abi_long a[6]; /* max 6 args */ |
| unsigned i; |
| |
| /* check the range of the first argument num */ |
| /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */ |
| if (num < 1 || num > TARGET_SYS_SENDMMSG) { |
| return -TARGET_EINVAL; |
| } |
| /* ensure we have space for args */ |
| if (nargs[num] > ARRAY_SIZE(a)) { |
| return -TARGET_EINVAL; |
| } |
| /* collect the arguments in a[] according to nargs[] */ |
| for (i = 0; i < nargs[num]; ++i) { |
| if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) { |
| return -TARGET_EFAULT; |
| } |
| } |
| /* now when we have the args, invoke the appropriate underlying function */ |
| switch (num) { |
| case TARGET_SYS_SOCKET: /* domain, type, protocol */ |
| return do_socket(a[0], a[1], a[2]); |
| case TARGET_SYS_BIND: /* sockfd, addr, addrlen */ |
| return do_bind(a[0], a[1], a[2]); |
| case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */ |
| return do_connect(a[0], a[1], a[2]); |
| case TARGET_SYS_LISTEN: /* sockfd, backlog */ |
| return get_errno(listen(a[0], a[1])); |
| case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */ |
| return do_accept4(a[0], a[1], a[2], 0); |
| case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */ |
| return do_getsockname(a[0], a[1], a[2]); |
| case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */ |
| return do_getpeername(a[0], a[1], a[2]); |
| case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */ |
| return do_socketpair(a[0], a[1], a[2], a[3]); |
| case TARGET_SYS_SEND: /* sockfd, msg, len, flags */ |
| return do_sendto(a[0], a[1], a[2], a[3], 0, 0); |
| case TARGET_SYS_RECV: /* sockfd, msg, len, flags */ |
| return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0); |
| case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */ |
| return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]); |
| case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */ |
| return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]); |
| case TARGET_SYS_SHUTDOWN: /* sockfd, how */ |
| return get_errno(shutdown(a[0], a[1])); |
| case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */ |
| return do_setsockopt(a[0], a[1], a[2], a[3], a[4]); |
| case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */ |
| return do_getsockopt(a[0], a[1], a[2], a[3], a[4]); |
| case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */ |
| return do_sendrecvmsg(a[0], a[1], a[2], 1); |
| case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */ |
| return do_sendrecvmsg(a[0], a[1], a[2], 0); |
| case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */ |
| return do_accept4(a[0], a[1], a[2], a[3]); |
| case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */ |
| return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0); |
| case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */ |
| return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1); |
| default: |
| qemu_log_mask(LOG_UNIMP, "Unsupported socketcall: %d\n", num); |
| return -TARGET_EINVAL; |
| } |
| } |
| #endif |
| |
| #define N_SHM_REGIONS 32 |
| |
| static struct shm_region { |
| abi_ulong start; |
| abi_ulong size; |
| bool in_use; |
| } shm_regions[N_SHM_REGIONS]; |
| |
| #ifndef TARGET_SEMID64_DS |
| /* asm-generic version of this struct */ |
| struct target_semid64_ds |
| { |
| struct target_ipc_perm sem_perm; |
| abi_ulong sem_otime; |
| #if TARGET_ABI_BITS == 32 |
| abi_ulong __unused1; |
| #endif |
| abi_ulong sem_ctime; |
| #if TARGET_ABI_BITS == 32 |
| abi_ulong __unused2; |
| #endif |
| abi_ulong sem_nsems; |
| abi_ulong __unused3; |
| abi_ulong __unused4; |
| }; |
| #endif |
| |
| static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, |
| abi_ulong target_addr) |
| { |
| struct target_ipc_perm *target_ip; |
| struct target_semid64_ds *target_sd; |
| |
| if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) |
| return -TARGET_EFAULT; |
| target_ip = &(target_sd->sem_perm); |
| host_ip->__key = tswap32(target_ip->__key); |
| host_ip->uid = tswap32(target_ip->uid); |
| host_ip->gid = tswap32(target_ip->gid); |
| host_ip->cuid = tswap32(target_ip->cuid); |
| host_ip->cgid = tswap32(target_ip->cgid); |
| #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC) |
| host_ip->mode = tswap32(target_ip->mode); |
| #else |
| host_ip->mode = tswap16(target_ip->mode); |
| #endif |
| #if defined(TARGET_PPC) |
| host_ip->__seq = tswap32(target_ip->__seq); |
| #else |
| host_ip->__seq = tswap16(target_ip->__seq); |
| #endif |
| unlock_user_struct(target_sd, target_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, |
| struct ipc_perm *host_ip) |
| { |
| struct target_ipc_perm *target_ip; |
| struct target_semid64_ds *target_sd; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) |
| return -TARGET_EFAULT; |
| target_ip = &(target_sd->sem_perm); |
| target_ip->__key = tswap32(host_ip->__key); |
| target_ip->uid = tswap32(host_ip->uid); |
| target_ip->gid = tswap32(host_ip->gid); |
| target_ip->cuid = tswap32(host_ip->cuid); |
| target_ip->cgid = tswap32(host_ip->cgid); |
| #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC) |
| target_ip->mode = tswap32(host_ip->mode); |
| #else |
| target_ip->mode = tswap16(host_ip->mode); |
| #endif |
| #if defined(TARGET_PPC) |
| target_ip->__seq = tswap32(host_ip->__seq); |
| #else |
| target_ip->__seq = tswap16(host_ip->__seq); |
| #endif |
| unlock_user_struct(target_sd, target_addr, 1); |
| return 0; |
| } |
| |
| static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, |
| abi_ulong target_addr) |
| { |
| struct target_semid64_ds *target_sd; |
| |
| if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) |
| return -TARGET_EFAULT; |
| if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr)) |
| return -TARGET_EFAULT; |
| host_sd->sem_nsems = tswapal(target_sd->sem_nsems); |
| host_sd->sem_otime = tswapal(target_sd->sem_otime); |
| host_sd->sem_ctime = tswapal(target_sd->sem_ctime); |
| unlock_user_struct(target_sd, target_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, |
| struct semid_ds *host_sd) |
| { |
| struct target_semid64_ds *target_sd; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) |
| return -TARGET_EFAULT; |
| if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm))) |
| return -TARGET_EFAULT; |
| target_sd->sem_nsems = tswapal(host_sd->sem_nsems); |
| target_sd->sem_otime = tswapal(host_sd->sem_otime); |
| target_sd->sem_ctime = tswapal(host_sd->sem_ctime); |
| unlock_user_struct(target_sd, target_addr, 1); |
| return 0; |
| } |
| |
| struct target_seminfo { |
| int semmap; |
| int semmni; |
| int semmns; |
| int semmnu; |
| int semmsl; |
| int semopm; |
| int semume; |
| int semusz; |
| int semvmx; |
| int semaem; |
| }; |
| |
| static inline abi_long host_to_target_seminfo(abi_ulong target_addr, |
| struct seminfo *host_seminfo) |
| { |
| struct target_seminfo *target_seminfo; |
| if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0)) |
| return -TARGET_EFAULT; |
| __put_user(host_seminfo->semmap, &target_seminfo->semmap); |
| __put_user(host_seminfo->semmni, &target_seminfo->semmni); |
| __put_user(host_seminfo->semmns, &target_seminfo->semmns); |
| __put_user(host_seminfo->semmnu, &target_seminfo->semmnu); |
| __put_user(host_seminfo->semmsl, &target_seminfo->semmsl); |
| __put_user(host_seminfo->semopm, &target_seminfo->semopm); |
| __put_user(host_seminfo->semume, &target_seminfo->semume); |
| __put_user(host_seminfo->semusz, &target_seminfo->semusz); |
| __put_user(host_seminfo->semvmx, &target_seminfo->semvmx); |
| __put_user(host_seminfo->semaem, &target_seminfo->semaem); |
| unlock_user_struct(target_seminfo, target_addr, 1); |
| return 0; |
| } |
| |
| union semun { |
| int val; |
| struct semid_ds *buf; |
| unsigned short *array; |
| struct seminfo *__buf; |
| }; |
| |
| union target_semun { |
| int val; |
| abi_ulong buf; |
| abi_ulong array; |
| abi_ulong __buf; |
| }; |
| |
| static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array, |
| abi_ulong target_addr) |
| { |
| int nsems; |
| unsigned short *array; |
| union semun semun; |
| struct semid_ds semid_ds; |
| int i, ret; |
| |
| semun.buf = &semid_ds; |
| |
| ret = semctl(semid, 0, IPC_STAT, semun); |
| if (ret == -1) |
| return get_errno(ret); |
| |
| nsems = semid_ds.sem_nsems; |
| |
| *host_array = g_try_new(unsigned short, nsems); |
| if (!*host_array) { |
| return -TARGET_ENOMEM; |
| } |
| array = lock_user(VERIFY_READ, target_addr, |
| nsems*sizeof(unsigned short), 1); |
| if (!array) { |
| g_free(*host_array); |
| return -TARGET_EFAULT; |
| } |
| |
| for(i=0; i<nsems; i++) { |
| __get_user((*host_array)[i], &array[i]); |
| } |
| unlock_user(array, target_addr, 0); |
| |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr, |
| unsigned short **host_array) |
| { |
| int nsems; |
| unsigned short *array; |
| union semun semun; |
| struct semid_ds semid_ds; |
| int i, ret; |
| |
| semun.buf = &semid_ds; |
| |
| ret = semctl(semid, 0, IPC_STAT, semun); |
| if (ret == -1) |
| return get_errno(ret); |
| |
| nsems = semid_ds.sem_nsems; |
| |
| array = lock_user(VERIFY_WRITE, target_addr, |
| nsems*sizeof(unsigned short), 0); |
| if (!array) |
| return -TARGET_EFAULT; |
| |
| for(i=0; i<nsems; i++) { |
| __put_user((*host_array)[i], &array[i]); |
| } |
| g_free(*host_array); |
| unlock_user(array, target_addr, 1); |
| |
| return 0; |
| } |
| |
| static inline abi_long do_semctl(int semid, int semnum, int cmd, |
| abi_ulong target_arg) |
| { |
| union target_semun target_su = { .buf = target_arg }; |
| union semun arg; |
| struct semid_ds dsarg; |
| unsigned short *array = NULL; |
| struct seminfo seminfo; |
| abi_long ret = -TARGET_EINVAL; |
| abi_long err; |
| cmd &= 0xff; |
| |
| switch( cmd ) { |
| case GETVAL: |
| case SETVAL: |
| /* In 64 bit cross-endian situations, we will erroneously pick up |
| * the wrong half of the union for the "val" element. To rectify |
| * this, the entire 8-byte structure is byteswapped, followed by |
| * a swap of the 4 byte val field. In other cases, the data is |
| * already in proper host byte order. */ |
| if (sizeof(target_su.val) != (sizeof(target_su.buf))) { |
| target_su.buf = tswapal(target_su.buf); |
| arg.val = tswap32(target_su.val); |
| } else { |
| arg.val = target_su.val; |
| } |
| ret = get_errno(semctl(semid, semnum, cmd, arg)); |
| break; |
| case GETALL: |
| case SETALL: |
| err = target_to_host_semarray(semid, &array, target_su.array); |
| if (err) |
| return err; |
| arg.array = array; |
| ret = get_errno(semctl(semid, semnum, cmd, arg)); |
| err = host_to_target_semarray(semid, target_su.array, &array); |
| if (err) |
| return err; |
| break; |
| case IPC_STAT: |
| case IPC_SET: |
| case SEM_STAT: |
| err = target_to_host_semid_ds(&dsarg, target_su.buf); |
| if (err) |
| return err; |
| arg.buf = &dsarg; |
| ret = get_errno(semctl(semid, semnum, cmd, arg)); |
| err = host_to_target_semid_ds(target_su.buf, &dsarg); |
| if (err) |
| return err; |
| break; |
| case IPC_INFO: |
| case SEM_INFO: |
| arg.__buf = &seminfo; |
| ret = get_errno(semctl(semid, semnum, cmd, arg)); |
| err = host_to_target_seminfo(target_su.__buf, &seminfo); |
| if (err) |
| return err; |
| break; |
| case IPC_RMID: |
| case GETPID: |
| case GETNCNT: |
| case GETZCNT: |
| ret = get_errno(semctl(semid, semnum, cmd, NULL)); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| struct target_sembuf { |
| unsigned short sem_num; |
| short sem_op; |
| short sem_flg; |
| }; |
| |
| static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf, |
| abi_ulong target_addr, |
| unsigned nsops) |
| { |
| struct target_sembuf *target_sembuf; |
| int i; |
| |
| target_sembuf = lock_user(VERIFY_READ, target_addr, |
| nsops*sizeof(struct target_sembuf), 1); |
| if (!target_sembuf) |
| return -TARGET_EFAULT; |
| |
| for(i=0; i<nsops; i++) { |
| __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num); |
| __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op); |
| __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg); |
| } |
| |
| unlock_user(target_sembuf, target_addr, 0); |
| |
| return 0; |
| } |
| |
| static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops) |
| { |
| struct sembuf sops[nsops]; |
| abi_long ret; |
| |
| if (target_to_host_sembuf(sops, ptr, nsops)) |
| return -TARGET_EFAULT; |
| |
| ret = -TARGET_ENOSYS; |
| #ifdef __NR_semtimedop |
| ret = get_errno(safe_semtimedop(semid, sops, nsops, NULL)); |
| #endif |
| #ifdef __NR_ipc |
| if (ret == -TARGET_ENOSYS) { |
| ret = get_errno(safe_ipc(IPCOP_semtimedop, semid, nsops, 0, sops, 0)); |
| } |
| #endif |
| return ret; |
| } |
| |
| struct target_msqid_ds |
| { |
| struct target_ipc_perm msg_perm; |
| abi_ulong msg_stime; |
| #if TARGET_ABI_BITS == 32 |
| abi_ulong __unused1; |
| #endif |
| abi_ulong msg_rtime; |
| #if TARGET_ABI_BITS == 32 |
| abi_ulong __unused2; |
| #endif |
| abi_ulong msg_ctime; |
| #if TARGET_ABI_BITS == 32 |
| abi_ulong __unused3; |
| #endif |
| abi_ulong __msg_cbytes; |
| abi_ulong msg_qnum; |
| abi_ulong msg_qbytes; |
| abi_ulong msg_lspid; |
| abi_ulong msg_lrpid; |
| abi_ulong __unused4; |
| abi_ulong __unused5; |
| }; |
| |
| static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, |
| abi_ulong target_addr) |
| { |
| struct target_msqid_ds *target_md; |
| |
| if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) |
| return -TARGET_EFAULT; |
| if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr)) |
| return -TARGET_EFAULT; |
| host_md->msg_stime = tswapal(target_md->msg_stime); |
| host_md->msg_rtime = tswapal(target_md->msg_rtime); |
| host_md->msg_ctime = tswapal(target_md->msg_ctime); |
| host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes); |
| host_md->msg_qnum = tswapal(target_md->msg_qnum); |
| host_md->msg_qbytes = tswapal(target_md->msg_qbytes); |
| host_md->msg_lspid = tswapal(target_md->msg_lspid); |
| host_md->msg_lrpid = tswapal(target_md->msg_lrpid); |
| unlock_user_struct(target_md, target_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, |
| struct msqid_ds *host_md) |
| { |
| struct target_msqid_ds *target_md; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) |
| return -TARGET_EFAULT; |
| if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm))) |
| return -TARGET_EFAULT; |
| target_md->msg_stime = tswapal(host_md->msg_stime); |
| target_md->msg_rtime = tswapal(host_md->msg_rtime); |
| target_md->msg_ctime = tswapal(host_md->msg_ctime); |
| target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes); |
| target_md->msg_qnum = tswapal(host_md->msg_qnum); |
| target_md->msg_qbytes = tswapal(host_md->msg_qbytes); |
| target_md->msg_lspid = tswapal(host_md->msg_lspid); |
| target_md->msg_lrpid = tswapal(host_md->msg_lrpid); |
| unlock_user_struct(target_md, target_addr, 1); |
| return 0; |
| } |
| |
| struct target_msginfo { |
| int msgpool; |
| int msgmap; |
| int msgmax; |
| int msgmnb; |
| int msgmni; |
| int msgssz; |
| int msgtql; |
| unsigned short int msgseg; |
| }; |
| |
| static inline abi_long host_to_target_msginfo(abi_ulong target_addr, |
| struct msginfo *host_msginfo) |
| { |
| struct target_msginfo *target_msginfo; |
| if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0)) |
| return -TARGET_EFAULT; |
| __put_user(host_msginfo->msgpool, &target_msginfo->msgpool); |
| __put_user(host_msginfo->msgmap, &target_msginfo->msgmap); |
| __put_user(host_msginfo->msgmax, &target_msginfo->msgmax); |
| __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb); |
| __put_user(host_msginfo->msgmni, &target_msginfo->msgmni); |
| __put_user(host_msginfo->msgssz, &target_msginfo->msgssz); |
| __put_user(host_msginfo->msgtql, &target_msginfo->msgtql); |
| __put_user(host_msginfo->msgseg, &target_msginfo->msgseg); |
| unlock_user_struct(target_msginfo, target_addr, 1); |
| return 0; |
| } |
| |
| static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr) |
| { |
| struct msqid_ds dsarg; |
| struct msginfo msginfo; |
| abi_long ret = -TARGET_EINVAL; |
| |
| cmd &= 0xff; |
| |
| switch (cmd) { |
| case IPC_STAT: |
| case IPC_SET: |
| case MSG_STAT: |
| if (target_to_host_msqid_ds(&dsarg,ptr)) |
| return -TARGET_EFAULT; |
| ret = get_errno(msgctl(msgid, cmd, &dsarg)); |
| if (host_to_target_msqid_ds(ptr,&dsarg)) |
| return -TARGET_EFAULT; |
| break; |
| case IPC_RMID: |
| ret = get_errno(msgctl(msgid, cmd, NULL)); |
| break; |
| case IPC_INFO: |
| case MSG_INFO: |
| ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo)); |
| if (host_to_target_msginfo(ptr, &msginfo)) |
| return -TARGET_EFAULT; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| struct target_msgbuf { |
| abi_long mtype; |
| char mtext[1]; |
| }; |
| |
| static inline abi_long do_msgsnd(int msqid, abi_long msgp, |
| ssize_t msgsz, int msgflg) |
| { |
| struct target_msgbuf *target_mb; |
| struct msgbuf *host_mb; |
| abi_long ret = 0; |
| |
| if (msgsz < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) |
| return -TARGET_EFAULT; |
| host_mb = g_try_malloc(msgsz + sizeof(long)); |
| if (!host_mb) { |
| unlock_user_struct(target_mb, msgp, 0); |
| return -TARGET_ENOMEM; |
| } |
| host_mb->mtype = (abi_long) tswapal(target_mb->mtype); |
| memcpy(host_mb->mtext, target_mb->mtext, msgsz); |
| ret = -TARGET_ENOSYS; |
| #ifdef __NR_msgsnd |
| ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg)); |
| #endif |
| #ifdef __NR_ipc |
| if (ret == -TARGET_ENOSYS) { |
| ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg, |
| host_mb, 0)); |
| } |
| #endif |
| g_free(host_mb); |
| unlock_user_struct(target_mb, msgp, 0); |
| |
| return ret; |
| } |
| |
| static inline abi_long do_msgrcv(int msqid, abi_long msgp, |
| ssize_t msgsz, abi_long msgtyp, |
| int msgflg) |
| { |
| struct target_msgbuf *target_mb; |
| char *target_mtext; |
| struct msgbuf *host_mb; |
| abi_long ret = 0; |
| |
| if (msgsz < 0) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) |
| return -TARGET_EFAULT; |
| |
| host_mb = g_try_malloc(msgsz + sizeof(long)); |
| if (!host_mb) { |
| ret = -TARGET_ENOMEM; |
| goto end; |
| } |
| ret = -TARGET_ENOSYS; |
| #ifdef __NR_msgrcv |
| ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg)); |
| #endif |
| #ifdef __NR_ipc |
| if (ret == -TARGET_ENOSYS) { |
| ret = get_errno(safe_ipc(IPCOP_CALL(1, IPCOP_msgrcv), msqid, msgsz, |
| msgflg, host_mb, msgtyp)); |
| } |
| #endif |
| |
| if (ret > 0) { |
| abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); |
| target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); |
| if (!target_mtext) { |
| ret = -TARGET_EFAULT; |
| goto end; |
| } |
| memcpy(target_mb->mtext, host_mb->mtext, ret); |
| unlock_user(target_mtext, target_mtext_addr, ret); |
| } |
| |
| target_mb->mtype = tswapal(host_mb->mtype); |
| |
| end: |
| if (target_mb) |
| unlock_user_struct(target_mb, msgp, 1); |
| g_free(host_mb); |
| return ret; |
| } |
| |
| static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd, |
| abi_ulong target_addr) |
| { |
| struct target_shmid_ds *target_sd; |
| |
| if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) |
| return -TARGET_EFAULT; |
| if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr)) |
| return -TARGET_EFAULT; |
| __get_user(host_sd->shm_segsz, &target_sd->shm_segsz); |
| __get_user(host_sd->shm_atime, &target_sd->shm_atime); |
| __get_user(host_sd->shm_dtime, &target_sd->shm_dtime); |
| __get_user(host_sd->shm_ctime, &target_sd->shm_ctime); |
| __get_user(host_sd->shm_cpid, &target_sd->shm_cpid); |
| __get_user(host_sd->shm_lpid, &target_sd->shm_lpid); |
| __get_user(host_sd->shm_nattch, &target_sd->shm_nattch); |
| unlock_user_struct(target_sd, target_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr, |
| struct shmid_ds *host_sd) |
| { |
| struct target_shmid_ds *target_sd; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) |
| return -TARGET_EFAULT; |
| if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm))) |
| return -TARGET_EFAULT; |
| __put_user(host_sd->shm_segsz, &target_sd->shm_segsz); |
| __put_user(host_sd->shm_atime, &target_sd->shm_atime); |
| __put_user(host_sd->shm_dtime, &target_sd->shm_dtime); |
| __put_user(host_sd->shm_ctime, &target_sd->shm_ctime); |
| __put_user(host_sd->shm_cpid, &target_sd->shm_cpid); |
| __put_user(host_sd->shm_lpid, &target_sd->shm_lpid); |
| __put_user(host_sd->shm_nattch, &target_sd->shm_nattch); |
| unlock_user_struct(target_sd, target_addr, 1); |
| return 0; |
| } |
| |
| struct target_shminfo { |
| abi_ulong shmmax; |
| abi_ulong shmmin; |
| abi_ulong shmmni; |
| abi_ulong shmseg; |
| abi_ulong shmall; |
| }; |
| |
| static inline abi_long host_to_target_shminfo(abi_ulong target_addr, |
| struct shminfo *host_shminfo) |
| { |
| struct target_shminfo *target_shminfo; |
| if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0)) |
| return -TARGET_EFAULT; |
| __put_user(host_shminfo->shmmax, &target_shminfo->shmmax); |
| __put_user(host_shminfo->shmmin, &target_shminfo->shmmin); |
| __put_user(host_shminfo->shmmni, &target_shminfo->shmmni); |
| __put_user(host_shminfo->shmseg, &target_shminfo->shmseg); |
| __put_user(host_shminfo->shmall, &target_shminfo->shmall); |
| unlock_user_struct(target_shminfo, target_addr, 1); |
| return 0; |
| } |
| |
| struct target_shm_info { |
| int used_ids; |
| abi_ulong shm_tot; |
| abi_ulong shm_rss; |
| abi_ulong shm_swp; |
| abi_ulong swap_attempts; |
| abi_ulong swap_successes; |
| }; |
| |
| static inline abi_long host_to_target_shm_info(abi_ulong target_addr, |
| struct shm_info *host_shm_info) |
| { |
| struct target_shm_info *target_shm_info; |
| if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0)) |
| return -TARGET_EFAULT; |
| __put_user(host_shm_info->used_ids, &target_shm_info->used_ids); |
| __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot); |
| __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss); |
| __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp); |
| __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts); |
| __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes); |
| unlock_user_struct(target_shm_info, target_addr, 1); |
| return 0; |
| } |
| |
| static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf) |
| { |
| struct shmid_ds dsarg; |
| struct shminfo shminfo; |
| struct shm_info shm_info; |
| abi_long ret = -TARGET_EINVAL; |
| |
| cmd &= 0xff; |
| |
| switch(cmd) { |
| case IPC_STAT: |
| case IPC_SET: |
| case SHM_STAT: |
| if (target_to_host_shmid_ds(&dsarg, buf)) |
| return -TARGET_EFAULT; |
| ret = get_errno(shmctl(shmid, cmd, &dsarg)); |
| if (host_to_target_shmid_ds(buf, &dsarg)) |
| return -TARGET_EFAULT; |
| break; |
| case IPC_INFO: |
| ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo)); |
| if (host_to_target_shminfo(buf, &shminfo)) |
| return -TARGET_EFAULT; |
| break; |
| case SHM_INFO: |
| ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info)); |
| if (host_to_target_shm_info(buf, &shm_info)) |
| return -TARGET_EFAULT; |
| break; |
| case IPC_RMID: |
| case SHM_LOCK: |
| case SHM_UNLOCK: |
| ret = get_errno(shmctl(shmid, cmd, NULL)); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| #ifndef TARGET_FORCE_SHMLBA |
| /* For most architectures, SHMLBA is the same as the page size; |
| * some architectures have larger values, in which case they should |
| * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function. |
| * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA |
| * and defining its own value for SHMLBA. |
| * |
| * The kernel also permits SHMLBA to be set by the architecture to a |
| * value larger than the page size without setting __ARCH_FORCE_SHMLBA; |
| * this means that addresses are rounded to the large size if |
| * SHM_RND is set but addresses not aligned to that size are not rejected |
| * as long as they are at least page-aligned. Since the only architecture |
| * which uses this is ia64 this code doesn't provide for that oddity. |
| */ |
| static inline abi_ulong target_shmlba(CPUArchState *cpu_env) |
| { |
| return TARGET_PAGE_SIZE; |
| } |
| #endif |
| |
| static inline abi_ulong do_shmat(CPUArchState *cpu_env, |
| int shmid, abi_ulong shmaddr, int shmflg) |
| { |
| abi_long raddr; |
| void *host_raddr; |
| struct shmid_ds shm_info; |
| int i,ret; |
| abi_ulong shmlba; |
| |
| /* find out the length of the shared memory segment */ |
| ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info)); |
| if (is_error(ret)) { |
| /* can't get length, bail out */ |
| return ret; |
| } |
| |
| shmlba = target_shmlba(cpu_env); |
| |
| if (shmaddr & (shmlba - 1)) { |
| if (shmflg & SHM_RND) { |
| shmaddr &= ~(shmlba - 1); |
| } else { |
| return -TARGET_EINVAL; |
| } |
| } |
| if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) { |
| return -TARGET_EINVAL; |
| } |
| |
| mmap_lock(); |
| |
| if (shmaddr) |
| host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); |
| else { |
| abi_ulong mmap_start; |
| |
| /* In order to use the host shmat, we need to honor host SHMLBA. */ |
| mmap_start = mmap_find_vma(0, shm_info.shm_segsz, MAX(SHMLBA, shmlba)); |
| |
| if (mmap_start == -1) { |
| errno = ENOMEM; |
| host_raddr = (void *)-1; |
| } else |
| host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP); |
| } |
| |
| if (host_raddr == (void *)-1) { |
| mmap_unlock(); |
| return get_errno((long)host_raddr); |
| } |
| raddr=h2g((unsigned long)host_raddr); |
| |
| page_set_flags(raddr, raddr + shm_info.shm_segsz, |
| PAGE_VALID | PAGE_READ | |
| ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE)); |
| |
| for (i = 0; i < N_SHM_REGIONS; i++) { |
| if (!shm_regions[i].in_use) { |
| shm_regions[i].in_use = true; |
| shm_regions[i].start = raddr; |
| shm_regions[i].size = shm_info.shm_segsz; |
| break; |
| } |
| } |
| |
| mmap_unlock(); |
| return raddr; |
| |
| } |
| |
| static inline abi_long do_shmdt(abi_ulong shmaddr) |
| { |
| int i; |
| abi_long rv; |
| |
| mmap_lock(); |
| |
| for (i = 0; i < N_SHM_REGIONS; ++i) { |
| if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) { |
| shm_regions[i].in_use = false; |
| page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0); |
| break; |
| } |
| } |
| rv = get_errno(shmdt(g2h(shmaddr))); |
| |
| mmap_unlock(); |
| |
| return rv; |
| } |
| |
| #ifdef TARGET_NR_ipc |
| /* ??? This only works with linear mappings. */ |
| /* do_ipc() must return target values and target errnos. */ |
| static abi_long do_ipc(CPUArchState *cpu_env, |
| unsigned int call, abi_long first, |
| abi_long second, abi_long third, |
| abi_long ptr, abi_long fifth) |
| { |
| int version; |
| abi_long ret = 0; |
| |
| version = call >> 16; |
| call &= 0xffff; |
| |
| switch (call) { |
| case IPCOP_semop: |
| ret = do_semop(first, ptr, second); |
| break; |
| |
| case IPCOP_semget: |
| ret = get_errno(semget(first, second, third)); |
| break; |
| |
| case IPCOP_semctl: { |
| /* The semun argument to semctl is passed by value, so dereference the |
| * ptr argument. */ |
| abi_ulong atptr; |
| get_user_ual(atptr, ptr); |
| ret = do_semctl(first, second, third, atptr); |
| break; |
| } |
| |
| case IPCOP_msgget: |
| ret = get_errno(msgget(first, second)); |
| break; |
| |
| case IPCOP_msgsnd: |
| ret = do_msgsnd(first, ptr, second, third); |
| break; |
| |
| case IPCOP_msgctl: |
| ret = do_msgctl(first, second, ptr); |
| break; |
| |
| case IPCOP_msgrcv: |
| switch (version) { |
| case 0: |
| { |
| struct target_ipc_kludge { |
| abi_long msgp; |
| abi_long msgtyp; |
| } *tmp; |
| |
| if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| |
| ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third); |
| |
| unlock_user_struct(tmp, ptr, 0); |
| break; |
| } |
| default: |
| ret = do_msgrcv(first, ptr, second, fifth, third); |
| } |
| break; |
| |
| case IPCOP_shmat: |
| switch (version) { |
| default: |
| { |
| abi_ulong raddr; |
| raddr = do_shmat(cpu_env, first, ptr, second); |
| if (is_error(raddr)) |
| return get_errno(raddr); |
| if (put_user_ual(raddr, third)) |
| return -TARGET_EFAULT; |
| break; |
| } |
| case 1: |
| ret = -TARGET_EINVAL; |
| break; |
| } |
| break; |
| case IPCOP_shmdt: |
| ret = do_shmdt(ptr); |
| break; |
| |
| case IPCOP_shmget: |
| /* IPC_* flag values are the same on all linux platforms */ |
| ret = get_errno(shmget(first, second, third)); |
| break; |
| |
| /* IPC_* and SHM_* command values are the same on all linux platforms */ |
| case IPCOP_shmctl: |
| ret = do_shmctl(first, second, ptr); |
| break; |
| default: |
| qemu_log_mask(LOG_UNIMP, "Unsupported ipc call: %d (version %d)\n", |
| call, version); |
| ret = -TARGET_ENOSYS; |
| break; |
| } |
| return ret; |
| } |
| #endif |
| |
| /* kernel structure types definitions */ |
| |
| #define STRUCT(name, ...) STRUCT_ ## name, |
| #define STRUCT_SPECIAL(name) STRUCT_ ## name, |
| enum { |
| #include "syscall_types.h" |
| STRUCT_MAX |
| }; |
| #undef STRUCT |
| #undef STRUCT_SPECIAL |
| |
| #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL }; |
| #define STRUCT_SPECIAL(name) |
| #include "syscall_types.h" |
| #undef STRUCT |
| #undef STRUCT_SPECIAL |
| |
| typedef struct IOCTLEntry IOCTLEntry; |
| |
| typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg); |
| |
| struct IOCTLEntry { |
| int target_cmd; |
| unsigned int host_cmd; |
| const char *name; |
| int access; |
| do_ioctl_fn *do_ioctl; |
| const argtype arg_type[5]; |
| }; |
| |
| #define IOC_R 0x0001 |
| #define IOC_W 0x0002 |
| #define IOC_RW (IOC_R | IOC_W) |
| |
| #define MAX_STRUCT_SIZE 4096 |
| |
| #ifdef CONFIG_FIEMAP |
| /* So fiemap access checks don't overflow on 32 bit systems. |
| * This is very slightly smaller than the limit imposed by |
| * the underlying kernel. |
| */ |
| #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \ |
| / sizeof(struct fiemap_extent)) |
| |
| static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| /* The parameter for this ioctl is a struct fiemap followed |
| * by an array of struct fiemap_extent whose size is set |
| * in fiemap->fm_extent_count. The array is filled in by the |
| * ioctl. |
| */ |
| int target_size_in, target_size_out; |
| struct fiemap *fm; |
| const argtype *arg_type = ie->arg_type; |
| const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) }; |
| void *argptr, *p; |
| abi_long ret; |
| int i, extent_size = thunk_type_size(extent_arg_type, 0); |
| uint32_t outbufsz; |
| int free_fm = 0; |
| |
| assert(arg_type[0] == TYPE_PTR); |
| assert(ie->access == IOC_RW); |
| arg_type++; |
| target_size_in = thunk_type_size(arg_type, 0); |
| argptr = lock_user(VERIFY_READ, arg, target_size_in, 1); |
| if (!argptr) { |
| return -TARGET_EFAULT; |
| } |
| thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| fm = (struct fiemap *)buf_temp; |
| if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) { |
| return -TARGET_EINVAL; |
| } |
| |
| outbufsz = sizeof (*fm) + |
| (sizeof(struct fiemap_extent) * fm->fm_extent_count); |
| |
| if (outbufsz > MAX_STRUCT_SIZE) { |
| /* We can't fit all the extents into the fixed size buffer. |
| * Allocate one that is large enough and use it instead. |
| */ |
| fm = g_try_malloc(outbufsz); |
| if (!fm) { |
| return -TARGET_ENOMEM; |
| } |
| memcpy(fm, buf_temp, sizeof(struct fiemap)); |
| free_fm = 1; |
| } |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm)); |
| if (!is_error(ret)) { |
| target_size_out = target_size_in; |
| /* An extent_count of 0 means we were only counting the extents |
| * so there are no structs to copy |
| */ |
| if (fm->fm_extent_count != 0) { |
| target_size_out += fm->fm_mapped_extents * extent_size; |
| } |
| argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0); |
| if (!argptr) { |
| ret = -TARGET_EFAULT; |
| } else { |
| /* Convert the struct fiemap */ |
| thunk_convert(argptr, fm, arg_type, THUNK_TARGET); |
| if (fm->fm_extent_count != 0) { |
| p = argptr + target_size_in; |
| /* ...and then all the struct fiemap_extents */ |
| for (i = 0; i < fm->fm_mapped_extents; i++) { |
| thunk_convert(p, &fm->fm_extents[i], extent_arg_type, |
| THUNK_TARGET); |
| p += extent_size; |
| } |
| } |
| unlock_user(argptr, arg, target_size_out); |
| } |
| } |
| if (free_fm) { |
| g_free(fm); |
| } |
| return ret; |
| } |
| #endif |
| |
| static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| const argtype *arg_type = ie->arg_type; |
| int target_size; |
| void *argptr; |
| int ret; |
| struct ifconf *host_ifconf; |
| uint32_t outbufsz; |
| const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) }; |
| int target_ifreq_size; |
| int nb_ifreq; |
| int free_buf = 0; |
| int i; |
| int target_ifc_len; |
| abi_long target_ifc_buf; |
| int host_ifc_len; |
| char *host_ifc_buf; |
| |
| assert(arg_type[0] == TYPE_PTR); |
| assert(ie->access == IOC_RW); |
| |
| arg_type++; |
| target_size = thunk_type_size(arg_type, 0); |
| |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) |
| return -TARGET_EFAULT; |
| thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| |
| host_ifconf = (struct ifconf *)(unsigned long)buf_temp; |
| target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf; |
| target_ifreq_size = thunk_type_size(ifreq_arg_type, 0); |
| |
| if (target_ifc_buf != 0) { |
| target_ifc_len = host_ifconf->ifc_len; |
| nb_ifreq = target_ifc_len / target_ifreq_size; |
| host_ifc_len = nb_ifreq * sizeof(struct ifreq); |
| |
| outbufsz = sizeof(*host_ifconf) + host_ifc_len; |
| if (outbufsz > MAX_STRUCT_SIZE) { |
| /* |
| * We can't fit all the extents into the fixed size buffer. |
| * Allocate one that is large enough and use it instead. |
| */ |
| host_ifconf = malloc(outbufsz); |
| if (!host_ifconf) { |
| return -TARGET_ENOMEM; |
| } |
| memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf)); |
| free_buf = 1; |
| } |
| host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf); |
| |
| host_ifconf->ifc_len = host_ifc_len; |
| } else { |
| host_ifc_buf = NULL; |
| } |
| host_ifconf->ifc_buf = host_ifc_buf; |
| |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf)); |
| if (!is_error(ret)) { |
| /* convert host ifc_len to target ifc_len */ |
| |
| nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq); |
| target_ifc_len = nb_ifreq * target_ifreq_size; |
| host_ifconf->ifc_len = target_ifc_len; |
| |
| /* restore target ifc_buf */ |
| |
| host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf; |
| |
| /* copy struct ifconf to target user */ |
| |
| argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
| if (!argptr) |
| return -TARGET_EFAULT; |
| thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET); |
| unlock_user(argptr, arg, target_size); |
| |
| if (target_ifc_buf != 0) { |
| /* copy ifreq[] to target user */ |
| argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0); |
| for (i = 0; i < nb_ifreq ; i++) { |
| thunk_convert(argptr + i * target_ifreq_size, |
| host_ifc_buf + i * sizeof(struct ifreq), |
| ifreq_arg_type, THUNK_TARGET); |
| } |
| unlock_user(argptr, target_ifc_buf, target_ifc_len); |
| } |
| } |
| |
| if (free_buf) { |
| free(host_ifconf); |
| } |
| |
| return ret; |
| } |
| |
| #if defined(CONFIG_USBFS) |
| #if HOST_LONG_BITS > 64 |
| #error USBDEVFS thunks do not support >64 bit hosts yet. |
| #endif |
| struct live_urb { |
| uint64_t target_urb_adr; |
| uint64_t target_buf_adr; |
| char *target_buf_ptr; |
| struct usbdevfs_urb host_urb; |
| }; |
| |
| static GHashTable *usbdevfs_urb_hashtable(void) |
| { |
| static GHashTable *urb_hashtable; |
| |
| if (!urb_hashtable) { |
| urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal); |
| } |
| return urb_hashtable; |
| } |
| |
| static void urb_hashtable_insert(struct live_urb *urb) |
| { |
| GHashTable *urb_hashtable = usbdevfs_urb_hashtable(); |
| g_hash_table_insert(urb_hashtable, urb, urb); |
| } |
| |
| static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr) |
| { |
| GHashTable *urb_hashtable = usbdevfs_urb_hashtable(); |
| return g_hash_table_lookup(urb_hashtable, &target_urb_adr); |
| } |
| |
| static void urb_hashtable_remove(struct live_urb *urb) |
| { |
| GHashTable *urb_hashtable = usbdevfs_urb_hashtable(); |
| g_hash_table_remove(urb_hashtable, urb); |
| } |
| |
| static abi_long |
| do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) }; |
| const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 }; |
| struct live_urb *lurb; |
| void *argptr; |
| uint64_t hurb; |
| int target_size; |
| uintptr_t target_urb_adr; |
| abi_long ret; |
| |
| target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET); |
| |
| memset(buf_temp, 0, sizeof(uint64_t)); |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
| if (is_error(ret)) { |
| return ret; |
| } |
| |
| memcpy(&hurb, buf_temp, sizeof(uint64_t)); |
| lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb)); |
| if (!lurb->target_urb_adr) { |
| return -TARGET_EFAULT; |
| } |
| urb_hashtable_remove(lurb); |
| unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, |
| lurb->host_urb.buffer_length); |
| lurb->target_buf_ptr = NULL; |
| |
| /* restore the guest buffer pointer */ |
| lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr; |
| |
| /* update the guest urb struct */ |
| argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0); |
| if (!argptr) { |
| g_free(lurb); |
| return -TARGET_EFAULT; |
| } |
| thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET); |
| unlock_user(argptr, lurb->target_urb_adr, target_size); |
| |
| target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET); |
| /* write back the urb handle */ |
| argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
| if (!argptr) { |
| g_free(lurb); |
| return -TARGET_EFAULT; |
| } |
| |
| /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */ |
| target_urb_adr = lurb->target_urb_adr; |
| thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET); |
| unlock_user(argptr, arg, target_size); |
| |
| g_free(lurb); |
| return ret; |
| } |
| |
| static abi_long |
| do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie, |
| uint8_t *buf_temp __attribute__((unused)), |
| int fd, int cmd, abi_long arg) |
| { |
| struct live_urb *lurb; |
| |
| /* map target address back to host URB with metadata. */ |
| lurb = urb_hashtable_lookup(arg); |
| if (!lurb) { |
| return -TARGET_EFAULT; |
| } |
| return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb)); |
| } |
| |
| static abi_long |
| do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| const argtype *arg_type = ie->arg_type; |
| int target_size; |
| abi_long ret; |
| void *argptr; |
| int rw_dir; |
| struct live_urb *lurb; |
| |
| /* |
| * each submitted URB needs to map to a unique ID for the |
| * kernel, and that unique ID needs to be a pointer to |
| * host memory. hence, we need to malloc for each URB. |
| * isochronous transfers have a variable length struct. |
| */ |
| arg_type++; |
| target_size = thunk_type_size(arg_type, THUNK_TARGET); |
| |
| /* construct host copy of urb and metadata */ |
| lurb = g_try_malloc0(sizeof(struct live_urb)); |
| if (!lurb) { |
| return -TARGET_ENOMEM; |
| } |
| |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) { |
| g_free(lurb); |
| return -TARGET_EFAULT; |
| } |
| thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| |
| lurb->target_urb_adr = arg; |
| lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer; |
| |
| /* buffer space used depends on endpoint type so lock the entire buffer */ |
| /* control type urbs should check the buffer contents for true direction */ |
| rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ; |
| lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr, |
| lurb->host_urb.buffer_length, 1); |
| if (lurb->target_buf_ptr == NULL) { |
| g_free(lurb); |
| return -TARGET_EFAULT; |
| } |
| |
| /* update buffer pointer in host copy */ |
| lurb->host_urb.buffer = lurb->target_buf_ptr; |
| |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb)); |
| if (is_error(ret)) { |
| unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0); |
| g_free(lurb); |
| } else { |
| urb_hashtable_insert(lurb); |
| } |
| |
| return ret; |
| } |
| #endif /* CONFIG_USBFS */ |
| |
| static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd, |
| int cmd, abi_long arg) |
| { |
| void *argptr; |
| struct dm_ioctl *host_dm; |
| abi_long guest_data; |
| uint32_t guest_data_size; |
| int target_size; |
| const argtype *arg_type = ie->arg_type; |
| abi_long ret; |
| void *big_buf = NULL; |
| char *host_data; |
| |
| arg_type++; |
| target_size = thunk_type_size(arg_type, 0); |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) { |
| ret = -TARGET_EFAULT; |
| goto out; |
| } |
| thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| |
| /* buf_temp is too small, so fetch things into a bigger buffer */ |
| big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2); |
| memcpy(big_buf, buf_temp, target_size); |
| buf_temp = big_buf; |
| host_dm = big_buf; |
| |
| guest_data = arg + host_dm->data_start; |
| if ((guest_data - arg) < 0) { |
| ret = -TARGET_EINVAL; |
| goto out; |
| } |
| guest_data_size = host_dm->data_size - host_dm->data_start; |
| host_data = (char*)host_dm + host_dm->data_start; |
| |
| argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1); |
| if (!argptr) { |
| ret = -TARGET_EFAULT; |
| goto out; |
| } |
| |
| switch (ie->host_cmd) { |
| case DM_REMOVE_ALL: |
| case DM_LIST_DEVICES: |
| case DM_DEV_CREATE: |
| case DM_DEV_REMOVE: |
| case DM_DEV_SUSPEND: |
| case DM_DEV_STATUS: |
| case DM_DEV_WAIT: |
| case DM_TABLE_STATUS: |
| case DM_TABLE_CLEAR: |
| case DM_TABLE_DEPS: |
| case DM_LIST_VERSIONS: |
| /* no input data */ |
| break; |
| case DM_DEV_RENAME: |
| case DM_DEV_SET_GEOMETRY: |
| /* data contains only strings */ |
| memcpy(host_data, argptr, guest_data_size); |
| break; |
| case DM_TARGET_MSG: |
| memcpy(host_data, argptr, guest_data_size); |
| *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr); |
| break; |
| case DM_TABLE_LOAD: |
| { |
| void *gspec = argptr; |
| void *cur_data = host_data; |
| const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) }; |
| int spec_size = thunk_type_size(arg_type, 0); |
| int i; |
| |
| for (i = 0; i < host_dm->target_count; i++) { |
| struct dm_target_spec *spec = cur_data; |
| uint32_t next; |
| int slen; |
| |
| thunk_convert(spec, gspec, arg_type, THUNK_HOST); |
| slen = strlen((char*)gspec + spec_size) + 1; |
| next = spec->next; |
| spec->next = sizeof(*spec) + slen; |
| strcpy((char*)&spec[1], gspec + spec_size); |
| gspec += next; |
| cur_data += spec->next; |
| } |
| break; |
| } |
| default: |
| ret = -TARGET_EINVAL; |
| unlock_user(argptr, guest_data, 0); |
| goto out; |
| } |
| unlock_user(argptr, guest_data, 0); |
| |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
| if (!is_error(ret)) { |
| guest_data = arg + host_dm->data_start; |
| guest_data_size = host_dm->data_size - host_dm->data_start; |
| argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0); |
| switch (ie->host_cmd) { |
| case DM_REMOVE_ALL: |
| case DM_DEV_CREATE: |
| case DM_DEV_REMOVE: |
| case DM_DEV_RENAME: |
| case DM_DEV_SUSPEND: |
| case DM_DEV_STATUS: |
| case DM_TABLE_LOAD: |
| case DM_TABLE_CLEAR: |
| case DM_TARGET_MSG: |
| case DM_DEV_SET_GEOMETRY: |
| /* no return data */ |
| break; |
| case DM_LIST_DEVICES: |
| { |
| struct dm_name_list *nl = (void*)host_dm + host_dm->data_start; |
| uint32_t remaining_data = guest_data_size; |
| void *cur_data = argptr; |
| const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) }; |
| int nl_size = 12; /* can't use thunk_size due to alignment */ |
| |
| while (1) { |
| uint32_t next = nl->next; |
| if (next) { |
| nl->next = nl_size + (strlen(nl->name) + 1); |
| } |
| if (remaining_data < nl->next) { |
| host_dm->flags |= DM_BUFFER_FULL_FLAG; |
| break; |
| } |
| thunk_convert(cur_data, nl, arg_type, THUNK_TARGET); |
| strcpy(cur_data + nl_size, nl->name); |
| cur_data += nl->next; |
| remaining_data -= nl->next; |
| if (!next) { |
| break; |
| } |
| nl = (void*)nl + next; |
| } |
| break; |
| } |
| case DM_DEV_WAIT: |
| case DM_TABLE_STATUS: |
| { |
| struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start; |
| void *cur_data = argptr; |
| const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) }; |
| int spec_size = thunk_type_size(arg_type, 0); |
| int i; |
| |
| for (i = 0; i < host_dm->target_count; i++) { |
| uint32_t next = spec->next; |
| int slen = strlen((char*)&spec[1]) + 1; |
| spec->next = (cur_data - argptr) + spec_size + slen; |
| if (guest_data_size < spec->next) { |
| host_dm->flags |= DM_BUFFER_FULL_FLAG; |
| break; |
| } |
| thunk_convert(cur_data, spec, arg_type, THUNK_TARGET); |
| strcpy(cur_data + spec_size, (char*)&spec[1]); |
| cur_data = argptr + spec->next; |
| spec = (void*)host_dm + host_dm->data_start + next; |
| } |
| break; |
| } |
| case DM_TABLE_DEPS: |
| { |
| void *hdata = (void*)host_dm + host_dm->data_start; |
| int count = *(uint32_t*)hdata; |
| uint64_t *hdev = hdata + 8; |
| uint64_t *gdev = argptr + 8; |
| int i; |
| |
| *(uint32_t*)argptr = tswap32(count); |
| for (i = 0; i < count; i++) { |
| *gdev = tswap64(*hdev); |
| gdev++; |
| hdev++; |
| } |
| break; |
| } |
| case DM_LIST_VERSIONS: |
| { |
| struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start; |
| uint32_t remaining_data = guest_data_size; |
| void *cur_data = argptr; |
| const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) }; |
| int vers_size = thunk_type_size(arg_type, 0); |
| |
| while (1) { |
| uint32_t next = vers->next; |
| if (next) { |
| vers->next = vers_size + (strlen(vers->name) + 1); |
| } |
| if (remaining_data < vers->next) { |
| host_dm->flags |= DM_BUFFER_FULL_FLAG; |
| break; |
| } |
| thunk_convert(cur_data, vers, arg_type, THUNK_TARGET); |
| strcpy(cur_data + vers_size, vers->name); |
| cur_data += vers->next; |
| remaining_data -= vers->next; |
| if (!next) { |
| break; |
| } |
| vers = (void*)vers + next; |
| } |
| break; |
| } |
| default: |
| unlock_user(argptr, guest_data, 0); |
| ret = -TARGET_EINVAL; |
| goto out; |
| } |
| unlock_user(argptr, guest_data, guest_data_size); |
| |
| argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
| if (!argptr) { |
| ret = -TARGET_EFAULT; |
| goto out; |
| } |
| thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); |
| unlock_user(argptr, arg, target_size); |
| } |
| out: |
| g_free(big_buf); |
| return ret; |
| } |
| |
| static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd, |
| int cmd, abi_long arg) |
| { |
| void *argptr; |
| int target_size; |
| const argtype *arg_type = ie->arg_type; |
| const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) }; |
| abi_long ret; |
| |
| struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp; |
| struct blkpg_partition host_part; |
| |
| /* Read and convert blkpg */ |
| arg_type++; |
| target_size = thunk_type_size(arg_type, 0); |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) { |
| ret = -TARGET_EFAULT; |
| goto out; |
| } |
| thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| |
| switch (host_blkpg->op) { |
| case BLKPG_ADD_PARTITION: |
| case BLKPG_DEL_PARTITION: |
| /* payload is struct blkpg_partition */ |
| break; |
| default: |
| /* Unknown opcode */ |
| ret = -TARGET_EINVAL; |
| goto out; |
| } |
| |
| /* Read and convert blkpg->data */ |
| arg = (abi_long)(uintptr_t)host_blkpg->data; |
| target_size = thunk_type_size(part_arg_type, 0); |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) { |
| ret = -TARGET_EFAULT; |
| goto out; |
| } |
| thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| |
| /* Swizzle the data pointer to our local copy and call! */ |
| host_blkpg->data = &host_part; |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg)); |
| |
| out: |
| return ret; |
| } |
| |
| static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| const argtype *arg_type = ie->arg_type; |
| const StructEntry *se; |
| const argtype *field_types; |
| const int *dst_offsets, *src_offsets; |
| int target_size; |
| void *argptr; |
| abi_ulong *target_rt_dev_ptr = NULL; |
| unsigned long *host_rt_dev_ptr = NULL; |
| abi_long ret; |
| int i; |
| |
| assert(ie->access == IOC_W); |
| assert(*arg_type == TYPE_PTR); |
| arg_type++; |
| assert(*arg_type == TYPE_STRUCT); |
| target_size = thunk_type_size(arg_type, 0); |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) { |
| return -TARGET_EFAULT; |
| } |
| arg_type++; |
| assert(*arg_type == (int)STRUCT_rtentry); |
| se = struct_entries + *arg_type++; |
| assert(se->convert[0] == NULL); |
| /* convert struct here to be able to catch rt_dev string */ |
| field_types = se->field_types; |
| dst_offsets = se->field_offsets[THUNK_HOST]; |
| src_offsets = se->field_offsets[THUNK_TARGET]; |
| for (i = 0; i < se->nb_fields; i++) { |
| if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) { |
| assert(*field_types == TYPE_PTRVOID); |
| target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]); |
| host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]); |
| if (*target_rt_dev_ptr != 0) { |
| *host_rt_dev_ptr = (unsigned long)lock_user_string( |
| tswapal(*target_rt_dev_ptr)); |
| if (!*host_rt_dev_ptr) { |
| unlock_user(argptr, arg, 0); |
| return -TARGET_EFAULT; |
| } |
| } else { |
| *host_rt_dev_ptr = 0; |
| } |
| field_types++; |
| continue; |
| } |
| field_types = thunk_convert(buf_temp + dst_offsets[i], |
| argptr + src_offsets[i], |
| field_types, THUNK_HOST); |
| } |
| unlock_user(argptr, arg, 0); |
| |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
| |
| assert(host_rt_dev_ptr != NULL); |
| assert(target_rt_dev_ptr != NULL); |
| if (*host_rt_dev_ptr != 0) { |
| unlock_user((void *)*host_rt_dev_ptr, |
| *target_rt_dev_ptr, 0); |
| } |
| return ret; |
| } |
| |
| static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| int sig = target_to_host_signal(arg); |
| return get_errno(safe_ioctl(fd, ie->host_cmd, sig)); |
| } |
| |
| static abi_long do_ioctl_SIOCGSTAMP(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| struct timeval tv; |
| abi_long ret; |
| |
| ret = get_errno(safe_ioctl(fd, SIOCGSTAMP, &tv)); |
| if (is_error(ret)) { |
| return ret; |
| } |
| |
| if (cmd == (int)TARGET_SIOCGSTAMP_OLD) { |
| if (copy_to_user_timeval(arg, &tv)) { |
| return -TARGET_EFAULT; |
| } |
| } else { |
| if (copy_to_user_timeval64(arg, &tv)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static abi_long do_ioctl_SIOCGSTAMPNS(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| struct timespec ts; |
| abi_long ret; |
| |
| ret = get_errno(safe_ioctl(fd, SIOCGSTAMPNS, &ts)); |
| if (is_error(ret)) { |
| return ret; |
| } |
| |
| if (cmd == (int)TARGET_SIOCGSTAMPNS_OLD) { |
| if (host_to_target_timespec(arg, &ts)) { |
| return -TARGET_EFAULT; |
| } |
| } else{ |
| if (host_to_target_timespec64(arg, &ts)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| |
| return ret; |
| } |
| |
| #ifdef TIOCGPTPEER |
| static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, int cmd, abi_long arg) |
| { |
| int flags = target_to_host_bitmask(arg, fcntl_flags_tbl); |
| return get_errno(safe_ioctl(fd, ie->host_cmd, flags)); |
| } |
| #endif |
| |
| static IOCTLEntry ioctl_entries[] = { |
| #define IOCTL(cmd, access, ...) \ |
| { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } }, |
| #define IOCTL_SPECIAL(cmd, access, dofn, ...) \ |
| { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } }, |
| #define IOCTL_IGNORE(cmd) \ |
| { TARGET_ ## cmd, 0, #cmd }, |
| #include "ioctls.h" |
| { 0, 0, }, |
| }; |
| |
| /* ??? Implement proper locking for ioctls. */ |
| /* do_ioctl() Must return target values and target errnos. */ |
| static abi_long do_ioctl(int fd, int cmd, abi_long arg) |
| { |
| const IOCTLEntry *ie; |
| const argtype *arg_type; |
| abi_long ret; |
| uint8_t buf_temp[MAX_STRUCT_SIZE]; |
| int target_size; |
| void *argptr; |
| |
| ie = ioctl_entries; |
| for(;;) { |
| if (ie->target_cmd == 0) { |
| qemu_log_mask( |
| LOG_UNIMP, "Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); |
| return -TARGET_ENOSYS; |
| } |
| if (ie->target_cmd == cmd) |
| break; |
| ie++; |
| } |
| arg_type = ie->arg_type; |
| if (ie->do_ioctl) { |
| return ie->do_ioctl(ie, buf_temp, fd, cmd, arg); |
| } else if (!ie->host_cmd) { |
| /* Some architectures define BSD ioctls in their headers |
| that are not implemented in Linux. */ |
| return -TARGET_ENOSYS; |
| } |
| |
| switch(arg_type[0]) { |
| case TYPE_NULL: |
| /* no argument */ |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd)); |
| break; |
| case TYPE_PTRVOID: |
| case TYPE_INT: |
| case TYPE_LONG: |
| case TYPE_ULONG: |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg)); |
| break; |
| case TYPE_PTR: |
| arg_type++; |
| target_size = thunk_type_size(arg_type, 0); |
| switch(ie->access) { |
| case IOC_R: |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
| if (!is_error(ret)) { |
| argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
| if (!argptr) |
| return -TARGET_EFAULT; |
| thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); |
| unlock_user(argptr, arg, target_size); |
| } |
| break; |
| case IOC_W: |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) |
| return -TARGET_EFAULT; |
| thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
| break; |
| default: |
| case IOC_RW: |
| argptr = lock_user(VERIFY_READ, arg, target_size, 1); |
| if (!argptr) |
| return -TARGET_EFAULT; |
| thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); |
| unlock_user(argptr, arg, 0); |
| ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp)); |
| if (!is_error(ret)) { |
| argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); |
| if (!argptr) |
| return -TARGET_EFAULT; |
| thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); |
| unlock_user(argptr, arg, target_size); |
| } |
| break; |
| } |
| break; |
| default: |
| qemu_log_mask(LOG_UNIMP, |
| "Unsupported ioctl type: cmd=0x%04lx type=%d\n", |
| (long)cmd, arg_type[0]); |
| ret = -TARGET_ENOSYS; |
| break; |
| } |
| return ret; |
| } |
| |
| static const bitmask_transtbl iflag_tbl[] = { |
| { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, |
| { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, |
| { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, |
| { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, |
| { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, |
| { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, |
| { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, |
| { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, |
| { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, |
| { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, |
| { TARGET_IXON, TARGET_IXON, IXON, IXON }, |
| { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, |
| { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, |
| { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| static const bitmask_transtbl oflag_tbl[] = { |
| { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, |
| { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, |
| { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, |
| { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, |
| { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, |
| { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, |
| { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, |
| { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, |
| { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, |
| { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, |
| { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, |
| { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, |
| { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, |
| { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, |
| { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, |
| { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, |
| { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, |
| { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, |
| { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, |
| { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, |
| { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, |
| { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, |
| { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, |
| { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| static const bitmask_transtbl cflag_tbl[] = { |
| { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, |
| { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, |
| { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, |
| { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, |
| { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, |
| { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, |
| { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, |
| { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, |
| { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, |
| { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, |
| { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, |
| { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, |
| { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, |
| { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, |
| { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, |
| { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, |
| { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, |
| { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, |
| { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, |
| { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, |
| { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, |
| { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, |
| { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, |
| { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, |
| { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, |
| { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, |
| { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, |
| { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, |
| { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, |
| { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, |
| { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| static const bitmask_transtbl lflag_tbl[] = { |
| { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, |
| { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, |
| { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, |
| { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, |
| { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, |
| { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, |
| { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, |
| { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, |
| { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, |
| { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, |
| { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, |
| { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, |
| { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, |
| { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, |
| { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| static void target_to_host_termios (void *dst, const void *src) |
| { |
| struct host_termios *host = dst; |
| const struct target_termios *target = src; |
| |
| host->c_iflag = |
| target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); |
| host->c_oflag = |
| target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); |
| host->c_cflag = |
| target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); |
| host->c_lflag = |
| target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); |
| host->c_line = target->c_line; |
| |
| memset(host->c_cc, 0, sizeof(host->c_cc)); |
| host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; |
| host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; |
| host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; |
| host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; |
| host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; |
| host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; |
| host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; |
| host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; |
| host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; |
| host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; |
| host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; |
| host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; |
| host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; |
| host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; |
| host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; |
| host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; |
| host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; |
| } |
| |
| static void host_to_target_termios (void *dst, const void *src) |
| { |
| struct target_termios *target = dst; |
| const struct host_termios *host = src; |
| |
| target->c_iflag = |
| tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); |
| target->c_oflag = |
| tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); |
| target->c_cflag = |
| tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); |
| target->c_lflag = |
| tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); |
| target->c_line = host->c_line; |
| |
| memset(target->c_cc, 0, sizeof(target->c_cc)); |
| target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; |
| target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; |
| target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; |
| target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; |
| target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; |
| target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; |
| target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; |
| target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; |
| target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; |
| target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; |
| target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; |
| target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; |
| target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; |
| target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; |
| target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; |
| target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; |
| target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; |
| } |
| |
| static const StructEntry struct_termios_def = { |
| .convert = { host_to_target_termios, target_to_host_termios }, |
| .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, |
| .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, |
| }; |
| |
| static bitmask_transtbl mmap_flags_tbl[] = { |
| { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, |
| { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, |
| { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, |
| { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, |
| MAP_ANONYMOUS, MAP_ANONYMOUS }, |
| { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, |
| MAP_GROWSDOWN, MAP_GROWSDOWN }, |
| { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, |
| MAP_DENYWRITE, MAP_DENYWRITE }, |
| { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, |
| MAP_EXECUTABLE, MAP_EXECUTABLE }, |
| { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, |
| { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE, |
| MAP_NORESERVE, MAP_NORESERVE }, |
| { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB }, |
| /* MAP_STACK had been ignored by the kernel for quite some time. |
| Recognize it for the target insofar as we do not want to pass |
| it through to the host. */ |
| { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| /* |
| * NOTE: TARGET_ABI32 is defined for TARGET_I386 (but not for TARGET_X86_64) |
| * TARGET_I386 is defined if TARGET_X86_64 is defined |
| */ |
| #if defined(TARGET_I386) |
| |
| /* NOTE: there is really one LDT for all the threads */ |
| static uint8_t *ldt_table; |
| |
| static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) |
| { |
| int size; |
| void *p; |
| |
| if (!ldt_table) |
| return 0; |
| size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; |
| if (size > bytecount) |
| size = bytecount; |
| p = lock_user(VERIFY_WRITE, ptr, size, 0); |
| if (!p) |
| return -TARGET_EFAULT; |
| /* ??? Should this by byteswapped? */ |
| memcpy(p, ldt_table, size); |
| unlock_user(p, ptr, size); |
| return size; |
| } |
| |
| /* XXX: add locking support */ |
| static abi_long write_ldt(CPUX86State *env, |
| abi_ulong ptr, unsigned long bytecount, int oldmode) |
| { |
| struct target_modify_ldt_ldt_s ldt_info; |
| struct target_modify_ldt_ldt_s *target_ldt_info; |
| int seg_32bit, contents, read_exec_only, limit_in_pages; |
| int seg_not_present, useable, lm; |
| uint32_t *lp, entry_1, entry_2; |
| |
| if (bytecount != sizeof(ldt_info)) |
| return -TARGET_EINVAL; |
| if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) |
| return -TARGET_EFAULT; |
| ldt_info.entry_number = tswap32(target_ldt_info->entry_number); |
| ldt_info.base_addr = tswapal(target_ldt_info->base_addr); |
| ldt_info.limit = tswap32(target_ldt_info->limit); |
| ldt_info.flags = tswap32(target_ldt_info->flags); |
| unlock_user_struct(target_ldt_info, ptr, 0); |
| |
| if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) |
| return -TARGET_EINVAL; |
| seg_32bit = ldt_info.flags & 1; |
| contents = (ldt_info.flags >> 1) & 3; |
| read_exec_only = (ldt_info.flags >> 3) & 1; |
| limit_in_pages = (ldt_info.flags >> 4) & 1; |
| seg_not_present = (ldt_info.flags >> 5) & 1; |
| useable = (ldt_info.flags >> 6) & 1; |
| #ifdef TARGET_ABI32 |
| lm = 0; |
| #else |
| lm = (ldt_info.flags >> 7) & 1; |
| #endif |
| if (contents == 3) { |
| if (oldmode) |
| return -TARGET_EINVAL; |
| if (seg_not_present == 0) |
| return -TARGET_EINVAL; |
| } |
| /* allocate the LDT */ |
| if (!ldt_table) { |
| env->ldt.base = target_mmap(0, |
| TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE, |
| PROT_READ|PROT_WRITE, |
| MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| if (env->ldt.base == -1) |
| return -TARGET_ENOMEM; |
| memset(g2h(env->ldt.base), 0, |
| TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); |
| env->ldt.limit = 0xffff; |
| ldt_table = g2h(env->ldt.base); |
| } |
| |
| /* NOTE: same code as Linux kernel */ |
| /* Allow LDTs to be cleared by the user. */ |
| if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { |
| if (oldmode || |
| (contents == 0 && |
| read_exec_only == 1 && |
| seg_32bit == 0 && |
| limit_in_pages == 0 && |
| seg_not_present == 1 && |
| useable == 0 )) { |
| entry_1 = 0; |
| entry_2 = 0; |
| goto install; |
| } |
| } |
| |
| entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | |
| (ldt_info.limit & 0x0ffff); |
| entry_2 = (ldt_info.base_addr & 0xff000000) | |
| ((ldt_info.base_addr & 0x00ff0000) >> 16) | |
| (ldt_info.limit & 0xf0000) | |
| ((read_exec_only ^ 1) << 9) | |
| (contents << 10) | |
| ((seg_not_present ^ 1) << 15) | |
| (seg_32bit << 22) | |
| (limit_in_pages << 23) | |
| (lm << 21) | |
| 0x7000; |
| if (!oldmode) |
| entry_2 |= (useable << 20); |
| |
| /* Install the new entry ... */ |
| install: |
| lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); |
| lp[0] = tswap32(entry_1); |
| lp[1] = tswap32(entry_2); |
| return 0; |
| } |
| |
| /* specific and weird i386 syscalls */ |
| static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, |
| unsigned long bytecount) |
| { |
| abi_long ret; |
| |
| switch (func) { |
| case 0: |
| ret = read_ldt(ptr, bytecount); |
| break; |
| case 1: |
| ret = write_ldt(env, ptr, bytecount, 1); |
| break; |
| case 0x11: |
| ret = write_ldt(env, ptr, bytecount, 0); |
| break; |
| default: |
| ret = -TARGET_ENOSYS; |
| break; |
| } |
| return ret; |
| } |
| |
| #if defined(TARGET_ABI32) |
| abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr) |
| { |
| uint64_t *gdt_table = g2h(env->gdt.base); |
| struct target_modify_ldt_ldt_s ldt_info; |
| struct target_modify_ldt_ldt_s *target_ldt_info; |
| int seg_32bit, contents, read_exec_only, limit_in_pages; |
| int seg_not_present, useable, lm; |
| uint32_t *lp, entry_1, entry_2; |
| int i; |
| |
| lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); |
| if (!target_ldt_info) |
| return -TARGET_EFAULT; |
| ldt_info.entry_number = tswap32(target_ldt_info->entry_number); |
| ldt_info.base_addr = tswapal(target_ldt_info->base_addr); |
| ldt_info.limit = tswap32(target_ldt_info->limit); |
| ldt_info.flags = tswap32(target_ldt_info->flags); |
| if (ldt_info.entry_number == -1) { |
| for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) { |
| if (gdt_table[i] == 0) { |
| ldt_info.entry_number = i; |
| target_ldt_info->entry_number = tswap32(i); |
| break; |
| } |
| } |
| } |
| unlock_user_struct(target_ldt_info, ptr, 1); |
| |
| if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || |
| ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX) |
| return -TARGET_EINVAL; |
| seg_32bit = ldt_info.flags & 1; |
| contents = (ldt_info.flags >> 1) & 3; |
| read_exec_only = (ldt_info.flags >> 3) & 1; |
| limit_in_pages = (ldt_info.flags >> 4) & 1; |
| seg_not_present = (ldt_info.flags >> 5) & 1; |
| useable = (ldt_info.flags >> 6) & 1; |
| #ifdef TARGET_ABI32 |
| lm = 0; |
| #else |
| lm = (ldt_info.flags >> 7) & 1; |
| #endif |
| |
| if (contents == 3) { |
| if (seg_not_present == 0) |
| return -TARGET_EINVAL; |
| } |
| |
| /* NOTE: same code as Linux kernel */ |
| /* Allow LDTs to be cleared by the user. */ |
| if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { |
| if ((contents == 0 && |
| read_exec_only == 1 && |
| seg_32bit == 0 && |
| limit_in_pages == 0 && |
| seg_not_present == 1 && |
| useable == 0 )) { |
| entry_1 = 0; |
| entry_2 = 0; |
| goto install; |
| } |
| } |
| |
| entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | |
| (ldt_info.limit & 0x0ffff); |
| entry_2 = (ldt_info.base_addr & 0xff000000) | |
| ((ldt_info.base_addr & 0x00ff0000) >> 16) | |
| (ldt_info.limit & 0xf0000) | |
| ((read_exec_only ^ 1) << 9) | |
| (contents << 10) | |
| ((seg_not_present ^ 1) << 15) | |
| (seg_32bit << 22) | |
| (limit_in_pages << 23) | |
| (useable << 20) | |
| (lm << 21) | |
| 0x7000; |
| |
| /* Install the new entry ... */ |
| install: |
| lp = (uint32_t *)(gdt_table + ldt_info.entry_number); |
| lp[0] = tswap32(entry_1); |
| lp[1] = tswap32(entry_2); |
| return 0; |
| } |
| |
| static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr) |
| { |
| struct target_modify_ldt_ldt_s *target_ldt_info; |
| uint64_t *gdt_table = g2h(env->gdt.base); |
| uint32_t base_addr, limit, flags; |
| int seg_32bit, contents, read_exec_only, limit_in_pages, idx; |
| int seg_not_present, useable, lm; |
| uint32_t *lp, entry_1, entry_2; |
| |
| lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); |
| if (!target_ldt_info) |
| return -TARGET_EFAULT; |
| idx = tswap32(target_ldt_info->entry_number); |
| if (idx < TARGET_GDT_ENTRY_TLS_MIN || |
| idx > TARGET_GDT_ENTRY_TLS_MAX) { |
| unlock_user_struct(target_ldt_info, ptr, 1); |
| return -TARGET_EINVAL; |
| } |
| lp = (uint32_t *)(gdt_table + idx); |
| entry_1 = tswap32(lp[0]); |
| entry_2 = tswap32(lp[1]); |
| |
| read_exec_only = ((entry_2 >> 9) & 1) ^ 1; |
| contents = (entry_2 >> 10) & 3; |
| seg_not_present = ((entry_2 >> 15) & 1) ^ 1; |
| seg_32bit = (entry_2 >> 22) & 1; |
| limit_in_pages = (entry_2 >> 23) & 1; |
| useable = (entry_2 >> 20) & 1; |
| #ifdef TARGET_ABI32 |
| lm = 0; |
| #else |
| lm = (entry_2 >> 21) & 1; |
| #endif |
| flags = (seg_32bit << 0) | (contents << 1) | |
| (read_exec_only << 3) | (limit_in_pages << 4) | |
| (seg_not_present << 5) | (useable << 6) | (lm << 7); |
| limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000); |
| base_addr = (entry_1 >> 16) | |
| (entry_2 & 0xff000000) | |
| ((entry_2 & 0xff) << 16); |
| target_ldt_info->base_addr = tswapal(base_addr); |
| target_ldt_info->limit = tswap32(limit); |
| target_ldt_info->flags = tswap32(flags); |
| unlock_user_struct(target_ldt_info, ptr, 1); |
| return 0; |
| } |
| |
| abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) |
| { |
| return -TARGET_ENOSYS; |
| } |
| #else |
| abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) |
| { |
| abi_long ret = 0; |
| abi_ulong val; |
| int idx; |
| |
| switch(code) { |
| case TARGET_ARCH_SET_GS: |
| case TARGET_ARCH_SET_FS: |
| if (code == TARGET_ARCH_SET_GS) |
| idx = R_GS; |
| else |
| idx = R_FS; |
| cpu_x86_load_seg(env, idx, 0); |
| env->segs[idx].base = addr; |
| break; |
| case TARGET_ARCH_GET_GS: |
| case TARGET_ARCH_GET_FS: |
| if (code == TARGET_ARCH_GET_GS) |
| idx = R_GS; |
| else |
| idx = R_FS; |
| val = env->segs[idx].base; |
| if (put_user(val, addr, abi_ulong)) |
| ret = -TARGET_EFAULT; |
| break; |
| default: |
| ret = -TARGET_EINVAL; |
| break; |
| } |
| return ret; |
| } |
| #endif /* defined(TARGET_ABI32 */ |
| |
| #endif /* defined(TARGET_I386) */ |
| |
| #define NEW_STACK_SIZE 0x40000 |
| |
| |
| static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER; |
| typedef struct { |
| CPUArchState *env; |
| pthread_mutex_t mutex; |
| pthread_cond_t cond; |
| pthread_t thread; |
| uint32_t tid; |
| abi_ulong child_tidptr; |
| abi_ulong parent_tidptr; |
| sigset_t sigmask; |
| } new_thread_info; |
| |
| static void *clone_func(void *arg) |
| { |
| new_thread_info *info = arg; |
| CPUArchState *env; |
| CPUState *cpu; |
| TaskState *ts; |
| |
| rcu_register_thread(); |
| tcg_register_thread(); |
| env = info->env; |
| cpu = env_cpu(env); |
| thread_cpu = cpu; |
| ts = (TaskState *)cpu->opaque; |
| info->tid = sys_gettid(); |
| task_settid(ts); |
| if (info->child_tidptr) |
| put_user_u32(info->tid, info->child_tidptr); |
| if (info->parent_tidptr) |
| put_user_u32(info->tid, info->parent_tidptr); |
| qemu_guest_random_seed_thread_part2(cpu->random_seed); |
| /* Enable signals. */ |
| sigprocmask(SIG_SETMASK, &info->sigmask, NULL); |
| /* Signal to the parent that we're ready. */ |
| pthread_mutex_lock(&info->mutex); |
| pthread_cond_broadcast(&info->cond); |
| pthread_mutex_unlock(&info->mutex); |
| /* Wait until the parent has finished initializing the tls state. */ |
| pthread_mutex_lock(&clone_lock); |
| pthread_mutex_unlock(&clone_lock); |
| cpu_loop(env); |
| /* never exits */ |
| return NULL; |
| } |
| |
| /* do_fork() Must return host values and target errnos (unlike most |
| do_*() functions). */ |
| static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, |
| abi_ulong parent_tidptr, target_ulong newtls, |
| abi_ulong child_tidptr) |
| { |
| CPUState *cpu = env_cpu(env); |
| int ret; |
| TaskState *ts; |
| CPUState *new_cpu; |
| CPUArchState *new_env; |
| sigset_t sigmask; |
| |
| flags &= ~CLONE_IGNORED_FLAGS; |
| |
| /* Emulate vfork() with fork() */ |
| if (flags & CLONE_VFORK) |
| flags &= ~(CLONE_VFORK | CLONE_VM); |
| |
| if (flags & CLONE_VM) { |
| TaskState *parent_ts = (TaskState *)cpu->opaque; |
| new_thread_info info; |
| pthread_attr_t attr; |
| |
| if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) || |
| (flags & CLONE_INVALID_THREAD_FLAGS)) { |
| return -TARGET_EINVAL; |
| } |
| |
| ts = g_new0(TaskState, 1); |
| init_task_state(ts); |
| |
| /* Grab a mutex so that thread setup appears atomic. */ |
| pthread_mutex_lock(&clone_lock); |
| |
| /* we create a new CPU instance. */ |
| new_env = cpu_copy(env); |
| /* Init regs that differ from the parent. */ |
| cpu_clone_regs_child(new_env, newsp, flags); |
| cpu_clone_regs_parent(env, flags); |
| new_cpu = env_cpu(new_env); |
| new_cpu->opaque = ts; |
| ts->bprm = parent_ts->bprm; |
| ts->info = parent_ts->info; |
| ts->signal_mask = parent_ts->signal_mask; |
| |
| if (flags & CLONE_CHILD_CLEARTID) { |
| ts->child_tidptr = child_tidptr; |
| } |
| |
| if (flags & CLONE_SETTLS) { |
| cpu_set_tls (new_env, newtls); |
| } |
| |
| memset(&info, 0, sizeof(info)); |
| pthread_mutex_init(&info.mutex, NULL); |
| pthread_mutex_lock(&info.mutex); |
| pthread_cond_init(&info.cond, NULL); |
| info.env = new_env; |
| if (flags & CLONE_CHILD_SETTID) { |
| info.child_tidptr = child_tidptr; |
| } |
| if (flags & CLONE_PARENT_SETTID) { |
| info.parent_tidptr = parent_tidptr; |
| } |
| |
| ret = pthread_attr_init(&attr); |
| ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE); |
| ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
| /* It is not safe to deliver signals until the child has finished |
| initializing, so temporarily block all signals. */ |
| sigfillset(&sigmask); |
| sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask); |
| cpu->random_seed = qemu_guest_random_seed_thread_part1(); |
| |
| /* If this is our first additional thread, we need to ensure we |
| * generate code for parallel execution and flush old translations. |
| */ |
| if (!parallel_cpus) { |
| parallel_cpus = true; |
| tb_flush(cpu); |
| } |
| |
| ret = pthread_create(&info.thread, &attr, clone_func, &info); |
| /* TODO: Free new CPU state if thread creation failed. */ |
| |
| sigprocmask(SIG_SETMASK, &info.sigmask, NULL); |
| pthread_attr_destroy(&attr); |
| if (ret == 0) { |
| /* Wait for the child to initialize. */ |
| pthread_cond_wait(&info.cond, &info.mutex); |
| ret = info.tid; |
| } else { |
| ret = -1; |
| } |
| pthread_mutex_unlock(&info.mutex); |
| pthread_cond_destroy(&info.cond); |
| pthread_mutex_destroy(&info.mutex); |
| pthread_mutex_unlock(&clone_lock); |
| } else { |
| /* if no CLONE_VM, we consider it is a fork */ |
| if (flags & CLONE_INVALID_FORK_FLAGS) { |
| return -TARGET_EINVAL; |
| } |
| |
| /* We can't support custom termination signals */ |
| if ((flags & CSIGNAL) != TARGET_SIGCHLD) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (block_signals()) { |
| return -TARGET_ERESTARTSYS; |
| } |
| |
| fork_start(); |
| ret = fork(); |
| if (ret == 0) { |
| /* Child Process. */ |
| cpu_clone_regs_child(env, newsp, flags); |
| fork_end(1); |
| /* There is a race condition here. The parent process could |
| theoretically read the TID in the child process before the child |
| tid is set. This would require using either ptrace |
| (not implemented) or having *_tidptr to point at a shared memory |
| mapping. We can't repeat the spinlock hack used above because |
| the child process gets its own copy of the lock. */ |
| if (flags & CLONE_CHILD_SETTID) |
| put_user_u32(sys_gettid(), child_tidptr); |
| if (flags & CLONE_PARENT_SETTID) |
| put_user_u32(sys_gettid(), parent_tidptr); |
| ts = (TaskState *)cpu->opaque; |
| if (flags & CLONE_SETTLS) |
| cpu_set_tls (env, newtls); |
| if (flags & CLONE_CHILD_CLEARTID) |
| ts->child_tidptr = child_tidptr; |
| } else { |
| cpu_clone_regs_parent(env, flags); |
| fork_end(0); |
| } |
| } |
| return ret; |
| } |
| |
| /* warning : doesn't handle linux specific flags... */ |
| static int target_to_host_fcntl_cmd(int cmd) |
| { |
| int ret; |
| |
| switch(cmd) { |
| case TARGET_F_DUPFD: |
| case TARGET_F_GETFD: |
| case TARGET_F_SETFD: |
| case TARGET_F_GETFL: |
| case TARGET_F_SETFL: |
| case TARGET_F_OFD_GETLK: |
| case TARGET_F_OFD_SETLK: |
| case TARGET_F_OFD_SETLKW: |
| ret = cmd; |
| break; |
| case TARGET_F_GETLK: |
| ret = F_GETLK64; |
| break; |
| case TARGET_F_SETLK: |
| ret = F_SETLK64; |
| break; |
| case TARGET_F_SETLKW: |
| ret = F_SETLKW64; |
| break; |
| case TARGET_F_GETOWN: |
| ret = F_GETOWN; |
| break; |
| case TARGET_F_SETOWN: |
| ret = F_SETOWN; |
| break; |
| case TARGET_F_GETSIG: |
| ret = F_GETSIG; |
| break; |
| case TARGET_F_SETSIG: |
| ret = F_SETSIG; |
| break; |
| #if TARGET_ABI_BITS == 32 |
| case TARGET_F_GETLK64: |
| ret = F_GETLK64; |
| break; |
| case TARGET_F_SETLK64: |
| ret = F_SETLK64; |
| break; |
| case TARGET_F_SETLKW64: |
| ret = F_SETLKW64; |
| break; |
| #endif |
| case TARGET_F_SETLEASE: |
| ret = F_SETLEASE; |
| break; |
| case TARGET_F_GETLEASE: |
| ret = F_GETLEASE; |
| break; |
| #ifdef F_DUPFD_CLOEXEC |
| case TARGET_F_DUPFD_CLOEXEC: |
| ret = F_DUPFD_CLOEXEC; |
| break; |
| #endif |
| case TARGET_F_NOTIFY: |
| ret = F_NOTIFY; |
| break; |
| #ifdef F_GETOWN_EX |
| case TARGET_F_GETOWN_EX: |
| ret = F_GETOWN_EX; |
| break; |
| #endif |
| #ifdef F_SETOWN_EX |
| case TARGET_F_SETOWN_EX: |
| ret = F_SETOWN_EX; |
| break; |
| #endif |
| #ifdef F_SETPIPE_SZ |
| case TARGET_F_SETPIPE_SZ: |
| ret = F_SETPIPE_SZ; |
| break; |
| case TARGET_F_GETPIPE_SZ: |
| ret = F_GETPIPE_SZ; |
| break; |
| #endif |
| default: |
| ret = -TARGET_EINVAL; |
| break; |
| } |
| |
| #if defined(__powerpc64__) |
| /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and |
| * is not supported by kernel. The glibc fcntl call actually adjusts |
| * them to 5, 6 and 7 before making the syscall(). Since we make the |
| * syscall directly, adjust to what is supported by the kernel. |
| */ |
| if (ret >= F_GETLK64 && ret <= F_SETLKW64) { |
| ret -= F_GETLK64 - 5; |
| } |
| #endif |
| |
| return ret; |
| } |
| |
| #define FLOCK_TRANSTBL \ |
| switch (type) { \ |
| TRANSTBL_CONVERT(F_RDLCK); \ |
| TRANSTBL_CONVERT(F_WRLCK); \ |
| TRANSTBL_CONVERT(F_UNLCK); \ |
| TRANSTBL_CONVERT(F_EXLCK); \ |
| TRANSTBL_CONVERT(F_SHLCK); \ |
| } |
| |
| static int target_to_host_flock(int type) |
| { |
| #define TRANSTBL_CONVERT(a) case TARGET_##a: return a |
| FLOCK_TRANSTBL |
| #undef TRANSTBL_CONVERT |
| return -TARGET_EINVAL; |
| } |
| |
| static int host_to_target_flock(int type) |
| { |
| #define TRANSTBL_CONVERT(a) case a: return TARGET_##a |
| FLOCK_TRANSTBL |
| #undef TRANSTBL_CONVERT |
| /* if we don't know how to convert the value coming |
| * from the host we copy to the target field as-is |
| */ |
| return type; |
| } |
| |
| static inline abi_long copy_from_user_flock(struct flock64 *fl, |
| abi_ulong target_flock_addr) |
| { |
| struct target_flock *target_fl; |
| int l_type; |
| |
| if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __get_user(l_type, &target_fl->l_type); |
| l_type = target_to_host_flock(l_type); |
| if (l_type < 0) { |
| return l_type; |
| } |
| fl->l_type = l_type; |
| __get_user(fl->l_whence, &target_fl->l_whence); |
| __get_user(fl->l_start, &target_fl->l_start); |
| __get_user(fl->l_len, &target_fl->l_len); |
| __get_user(fl->l_pid, &target_fl->l_pid); |
| unlock_user_struct(target_fl, target_flock_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr, |
| const struct flock64 *fl) |
| { |
| struct target_flock *target_fl; |
| short l_type; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| |
| l_type = host_to_target_flock(fl->l_type); |
| __put_user(l_type, &target_fl->l_type); |
| __put_user(fl->l_whence, &target_fl->l_whence); |
| __put_user(fl->l_start, &target_fl->l_start); |
| __put_user(fl->l_len, &target_fl->l_len); |
| __put_user(fl->l_pid, &target_fl->l_pid); |
| unlock_user_struct(target_fl, target_flock_addr, 1); |
| return 0; |
| } |
| |
| typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr); |
| typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl); |
| |
| #if defined(TARGET_ARM) && TARGET_ABI_BITS == 32 |
| static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl, |
| abi_ulong target_flock_addr) |
| { |
| struct target_oabi_flock64 *target_fl; |
| int l_type; |
| |
| if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __get_user(l_type, &target_fl->l_type); |
| l_type = target_to_host_flock(l_type); |
| if (l_type < 0) { |
| return l_type; |
| } |
| fl->l_type = l_type; |
| __get_user(fl->l_whence, &target_fl->l_whence); |
| __get_user(fl->l_start, &target_fl->l_start); |
| __get_user(fl->l_len, &target_fl->l_len); |
| __get_user(fl->l_pid, &target_fl->l_pid); |
| unlock_user_struct(target_fl, target_flock_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr, |
| const struct flock64 *fl) |
| { |
| struct target_oabi_flock64 *target_fl; |
| short l_type; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| |
| l_type = host_to_target_flock(fl->l_type); |
| __put_user(l_type, &target_fl->l_type); |
| __put_user(fl->l_whence, &target_fl->l_whence); |
| __put_user(fl->l_start, &target_fl->l_start); |
| __put_user(fl->l_len, &target_fl->l_len); |
| __put_user(fl->l_pid, &target_fl->l_pid); |
| unlock_user_struct(target_fl, target_flock_addr, 1); |
| return 0; |
| } |
| #endif |
| |
| static inline abi_long copy_from_user_flock64(struct flock64 *fl, |
| abi_ulong target_flock_addr) |
| { |
| struct target_flock64 *target_fl; |
| int l_type; |
| |
| if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __get_user(l_type, &target_fl->l_type); |
| l_type = target_to_host_flock(l_type); |
| if (l_type < 0) { |
| return l_type; |
| } |
| fl->l_type = l_type; |
| __get_user(fl->l_whence, &target_fl->l_whence); |
| __get_user(fl->l_start, &target_fl->l_start); |
| __get_user(fl->l_len, &target_fl->l_len); |
| __get_user(fl->l_pid, &target_fl->l_pid); |
| unlock_user_struct(target_fl, target_flock_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr, |
| const struct flock64 *fl) |
| { |
| struct target_flock64 *target_fl; |
| short l_type; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| |
| l_type = host_to_target_flock(fl->l_type); |
| __put_user(l_type, &target_fl->l_type); |
| __put_user(fl->l_whence, &target_fl->l_whence); |
| __put_user(fl->l_start, &target_fl->l_start); |
| __put_user(fl->l_len, &target_fl->l_len); |
| __put_user(fl->l_pid, &target_fl->l_pid); |
| unlock_user_struct(target_fl, target_flock_addr, 1); |
| return 0; |
| } |
| |
| static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) |
| { |
| struct flock64 fl64; |
| #ifdef F_GETOWN_EX |
| struct f_owner_ex fox; |
| struct target_f_owner_ex *target_fox; |
| #endif |
| abi_long ret; |
| int host_cmd = target_to_host_fcntl_cmd(cmd); |
| |
| if (host_cmd == -TARGET_EINVAL) |
| return host_cmd; |
| |
| switch(cmd) { |
| case TARGET_F_GETLK: |
| ret = copy_from_user_flock(&fl64, arg); |
| if (ret) { |
| return ret; |
| } |
| ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
| if (ret == 0) { |
| ret = copy_to_user_flock(arg, &fl64); |
| } |
| break; |
| |
| case TARGET_F_SETLK: |
| case TARGET_F_SETLKW: |
| ret = copy_from_user_flock(&fl64, arg); |
| if (ret) { |
| return ret; |
| } |
| ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
| break; |
| |
| case TARGET_F_GETLK64: |
| case TARGET_F_OFD_GETLK: |
| ret = copy_from_user_flock64(&fl64, arg); |
| if (ret) { |
| return ret; |
| } |
| ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
| if (ret == 0) { |
| ret = copy_to_user_flock64(arg, &fl64); |
| } |
| break; |
| case TARGET_F_SETLK64: |
| case TARGET_F_SETLKW64: |
| case TARGET_F_OFD_SETLK: |
| case TARGET_F_OFD_SETLKW: |
| ret = copy_from_user_flock64(&fl64, arg); |
| if (ret) { |
| return ret; |
| } |
| ret = get_errno(safe_fcntl(fd, host_cmd, &fl64)); |
| break; |
| |
| case TARGET_F_GETFL: |
| ret = get_errno(safe_fcntl(fd, host_cmd, arg)); |
| if (ret >= 0) { |
| ret = host_to_target_bitmask(ret, fcntl_flags_tbl); |
| } |
| break; |
| |
| case TARGET_F_SETFL: |
| ret = get_errno(safe_fcntl(fd, host_cmd, |
| target_to_host_bitmask(arg, |
| fcntl_flags_tbl))); |
| break; |
| |
| #ifdef F_GETOWN_EX |
| case TARGET_F_GETOWN_EX: |
| ret = get_errno(safe_fcntl(fd, host_cmd, &fox)); |
| if (ret >= 0) { |
| if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0)) |
| return -TARGET_EFAULT; |
| target_fox->type = tswap32(fox.type); |
| target_fox->pid = tswap32(fox.pid); |
| unlock_user_struct(target_fox, arg, 1); |
| } |
| break; |
| #endif |
| |
| #ifdef F_SETOWN_EX |
| case TARGET_F_SETOWN_EX: |
| if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1)) |
| return -TARGET_EFAULT; |
| fox.type = tswap32(target_fox->type); |
| fox.pid = tswap32(target_fox->pid); |
| unlock_user_struct(target_fox, arg, 0); |
| ret = get_errno(safe_fcntl(fd, host_cmd, &fox)); |
| break; |
| #endif |
| |
| case TARGET_F_SETOWN: |
| case TARGET_F_GETOWN: |
| case TARGET_F_SETSIG: |
| case TARGET_F_GETSIG: |
| case TARGET_F_SETLEASE: |
| case TARGET_F_GETLEASE: |
| case TARGET_F_SETPIPE_SZ: |
| case TARGET_F_GETPIPE_SZ: |
| ret = get_errno(safe_fcntl(fd, host_cmd, arg)); |
| break; |
| |
| default: |
| ret = get_errno(safe_fcntl(fd, cmd, arg)); |
| break; |
| } |
| return ret; |
| } |
| |
| #ifdef USE_UID16 |
| |
| static inline int high2lowuid(int uid) |
| { |
| if (uid > 65535) |
| return 65534; |
| else |
| return uid; |
| } |
| |
| static inline int high2lowgid(int gid) |
| { |
| if (gid > 65535) |
| return 65534; |
| else |
| return gid; |
| } |
| |
| static inline int low2highuid(int uid) |
| { |
| if ((int16_t)uid == -1) |
| return -1; |
| else |
| return uid; |
| } |
| |
| static inline int low2highgid(int gid) |
| { |
| if ((int16_t)gid == -1) |
| return -1; |
| else |
| return gid; |
| } |
| static inline int tswapid(int id) |
| { |
| return tswap16(id); |
| } |
| |
| #define put_user_id(x, gaddr) put_user_u16(x, gaddr) |
| |
| #else /* !USE_UID16 */ |
| static inline int high2lowuid(int uid) |
| { |
| return uid; |
| } |
| static inline int high2lowgid(int gid) |
| { |
| return gid; |
| } |
| static inline int low2highuid(int uid) |
| { |
| return uid; |
| } |
| static inline int low2highgid(int gid) |
| { |
| return gid; |
| } |
| static inline int tswapid(int id) |
| { |
| return tswap32(id); |
| } |
| |
| #define put_user_id(x, gaddr) put_user_u32(x, gaddr) |
| |
| #endif /* USE_UID16 */ |
| |
| /* We must do direct syscalls for setting UID/GID, because we want to |
| * implement the Linux system call semantics of "change only for this thread", |
| * not the libc/POSIX semantics of "change for all threads in process". |
| * (See http://ewontfix.com/17/ for more details.) |
| * We use the 32-bit version of the syscalls if present; if it is not |
| * then either the host architecture supports 32-bit UIDs natively with |
| * the standard syscall, or the 16-bit UID is the best we can do. |
| */ |
| #ifdef __NR_setuid32 |
| #define __NR_sys_setuid __NR_setuid32 |
| #else |
| #define __NR_sys_setuid __NR_setuid |
| #endif |
| #ifdef __NR_setgid32 |
| #define __NR_sys_setgid __NR_setgid32 |
| #else |
| #define __NR_sys_setgid __NR_setgid |
| #endif |
| #ifdef __NR_setresuid32 |
| #define __NR_sys_setresuid __NR_setresuid32 |
| #else |
| #define __NR_sys_setresuid __NR_setresuid |
| #endif |
| #ifdef __NR_setresgid32 |
| #define __NR_sys_setresgid __NR_setresgid32 |
| #else |
| #define __NR_sys_setresgid __NR_setresgid |
| #endif |
| |
| _syscall1(int, sys_setuid, uid_t, uid) |
| _syscall1(int, sys_setgid, gid_t, gid) |
| _syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid) |
| _syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid) |
| |
| void syscall_init(void) |
| { |
| IOCTLEntry *ie; |
| const argtype *arg_type; |
| int size; |
| int i; |
| |
| thunk_init(STRUCT_MAX); |
| |
| #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); |
| #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); |
| #include "syscall_types.h" |
| #undef STRUCT |
| #undef STRUCT_SPECIAL |
| |
| /* Build target_to_host_errno_table[] table from |
| * host_to_target_errno_table[]. */ |
| for (i = 0; i < ERRNO_TABLE_SIZE; i++) { |
| target_to_host_errno_table[host_to_target_errno_table[i]] = i; |
| } |
| |
| /* we patch the ioctl size if necessary. We rely on the fact that |
| no ioctl has all the bits at '1' in the size field */ |
| ie = ioctl_entries; |
| while (ie->target_cmd != 0) { |
| if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == |
| TARGET_IOC_SIZEMASK) { |
| arg_type = ie->arg_type; |
| if (arg_type[0] != TYPE_PTR) { |
| fprintf(stderr, "cannot patch size for ioctl 0x%x\n", |
| ie->target_cmd); |
| exit(1); |
| } |
| arg_type++; |
| size = thunk_type_size(arg_type, 0); |
| ie->target_cmd = (ie->target_cmd & |
| ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | |
| (size << TARGET_IOC_SIZESHIFT); |
| } |
| |
| /* automatic consistency check if same arch */ |
| #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \ |
| (defined(__x86_64__) && defined(TARGET_X86_64)) |
| if (unlikely(ie->target_cmd != ie->host_cmd)) { |
| fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n", |
| ie->name, ie->target_cmd, ie->host_cmd); |
| } |
| #endif |
| ie++; |
| } |
| } |
| |
| #if TARGET_ABI_BITS == 32 |
| static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) |
| { |
| #ifdef TARGET_WORDS_BIGENDIAN |
| return ((uint64_t)word0 << 32) | word1; |
| #else |
| return ((uint64_t)word1 << 32) | word0; |
| #endif |
| } |
| #else /* TARGET_ABI_BITS == 32 */ |
| static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) |
| { |
| return word0; |
| } |
| #endif /* TARGET_ABI_BITS != 32 */ |
| |
| #ifdef TARGET_NR_truncate64 |
| static inline abi_long target_truncate64(void *cpu_env, const char *arg1, |
| abi_long arg2, |
| abi_long arg3, |
| abi_long arg4) |
| { |
| if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) { |
| arg2 = arg3; |
| arg3 = arg4; |
| } |
| return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); |
| } |
| #endif |
| |
| #ifdef TARGET_NR_ftruncate64 |
| static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, |
| abi_long arg2, |
| abi_long arg3, |
| abi_long arg4) |
| { |
| if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) { |
| arg2 = arg3; |
| arg3 = arg4; |
| } |
| return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); |
| } |
| #endif |
| |
| #if defined(TARGET_NR_timer_settime) || \ |
| (defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)) |
| static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec, |
| abi_ulong target_addr) |
| { |
| struct target_itimerspec *target_itspec; |
| |
| if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| host_itspec->it_interval.tv_sec = |
| tswapal(target_itspec->it_interval.tv_sec); |
| host_itspec->it_interval.tv_nsec = |
| tswapal(target_itspec->it_interval.tv_nsec); |
| host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec); |
| host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec); |
| |
| unlock_user_struct(target_itspec, target_addr, 1); |
| return 0; |
| } |
| #endif |
| |
| #if ((defined(TARGET_NR_timerfd_gettime) || \ |
| defined(TARGET_NR_timerfd_settime)) && defined(CONFIG_TIMERFD)) || \ |
| defined(TARGET_NR_timer_gettime) || defined(TARGET_NR_timer_settime) |
| static inline abi_long host_to_target_itimerspec(abi_ulong target_addr, |
| struct itimerspec *host_its) |
| { |
| struct target_itimerspec *target_itspec; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| |
| target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec); |
| target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec); |
| |
| target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec); |
| target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec); |
| |
| unlock_user_struct(target_itspec, target_addr, 0); |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_adjtimex) || \ |
| (defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)) |
| static inline abi_long target_to_host_timex(struct timex *host_tx, |
| abi_long target_addr) |
| { |
| struct target_timex *target_tx; |
| |
| if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __get_user(host_tx->modes, &target_tx->modes); |
| __get_user(host_tx->offset, &target_tx->offset); |
| __get_user(host_tx->freq, &target_tx->freq); |
| __get_user(host_tx->maxerror, &target_tx->maxerror); |
| __get_user(host_tx->esterror, &target_tx->esterror); |
| __get_user(host_tx->status, &target_tx->status); |
| __get_user(host_tx->constant, &target_tx->constant); |
| __get_user(host_tx->precision, &target_tx->precision); |
| __get_user(host_tx->tolerance, &target_tx->tolerance); |
| __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec); |
| __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec); |
| __get_user(host_tx->tick, &target_tx->tick); |
| __get_user(host_tx->ppsfreq, &target_tx->ppsfreq); |
| __get_user(host_tx->jitter, &target_tx->jitter); |
| __get_user(host_tx->shift, &target_tx->shift); |
| __get_user(host_tx->stabil, &target_tx->stabil); |
| __get_user(host_tx->jitcnt, &target_tx->jitcnt); |
| __get_user(host_tx->calcnt, &target_tx->calcnt); |
| __get_user(host_tx->errcnt, &target_tx->errcnt); |
| __get_user(host_tx->stbcnt, &target_tx->stbcnt); |
| __get_user(host_tx->tai, &target_tx->tai); |
| |
| unlock_user_struct(target_tx, target_addr, 0); |
| return 0; |
| } |
| |
| static inline abi_long host_to_target_timex(abi_long target_addr, |
| struct timex *host_tx) |
| { |
| struct target_timex *target_tx; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| |
| __put_user(host_tx->modes, &target_tx->modes); |
| __put_user(host_tx->offset, &target_tx->offset); |
| __put_user(host_tx->freq, &target_tx->freq); |
| __put_user(host_tx->maxerror, &target_tx->maxerror); |
| __put_user(host_tx->esterror, &target_tx->esterror); |
| __put_user(host_tx->status, &target_tx->status); |
| __put_user(host_tx->constant, &target_tx->constant); |
| __put_user(host_tx->precision, &target_tx->precision); |
| __put_user(host_tx->tolerance, &target_tx->tolerance); |
| __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec); |
| __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec); |
| __put_user(host_tx->tick, &target_tx->tick); |
| __put_user(host_tx->ppsfreq, &target_tx->ppsfreq); |
| __put_user(host_tx->jitter, &target_tx->jitter); |
| __put_user(host_tx->shift, &target_tx->shift); |
| __put_user(host_tx->stabil, &target_tx->stabil); |
| __put_user(host_tx->jitcnt, &target_tx->jitcnt); |
| __put_user(host_tx->calcnt, &target_tx->calcnt); |
| __put_user(host_tx->errcnt, &target_tx->errcnt); |
| __put_user(host_tx->stbcnt, &target_tx->stbcnt); |
| __put_user(host_tx->tai, &target_tx->tai); |
| |
| unlock_user_struct(target_tx, target_addr, 1); |
| return 0; |
| } |
| #endif |
| |
| static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp, |
| abi_ulong target_addr) |
| { |
| struct target_sigevent *target_sevp; |
| |
| if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| /* This union is awkward on 64 bit systems because it has a 32 bit |
| * integer and a pointer in it; we follow the conversion approach |
| * used for handling sigval types in signal.c so the guest should get |
| * the correct value back even if we did a 64 bit byteswap and it's |
| * using the 32 bit integer. |
| */ |
| host_sevp->sigev_value.sival_ptr = |
| (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr); |
| host_sevp->sigev_signo = |
| target_to_host_signal(tswap32(target_sevp->sigev_signo)); |
| host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify); |
| host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid); |
| |
| unlock_user_struct(target_sevp, target_addr, 1); |
| return 0; |
| } |
| |
| #if defined(TARGET_NR_mlockall) |
| static inline int target_to_host_mlockall_arg(int arg) |
| { |
| int result = 0; |
| |
| if (arg & TARGET_MLOCKALL_MCL_CURRENT) { |
| result |= MCL_CURRENT; |
| } |
| if (arg & TARGET_MLOCKALL_MCL_FUTURE) { |
| result |= MCL_FUTURE; |
| } |
| return result; |
| } |
| #endif |
| |
| #if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \ |
| defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \ |
| defined(TARGET_NR_newfstatat)) |
| static inline abi_long host_to_target_stat64(void *cpu_env, |
| abi_ulong target_addr, |
| struct stat *host_st) |
| { |
| #if defined(TARGET_ARM) && defined(TARGET_ABI32) |
| if (((CPUARMState *)cpu_env)->eabi) { |
| struct target_eabi_stat64 *target_st; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) |
| return -TARGET_EFAULT; |
| memset(target_st, 0, sizeof(struct target_eabi_stat64)); |
| __put_user(host_st->st_dev, &target_st->st_dev); |
| __put_user(host_st->st_ino, &target_st->st_ino); |
| #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO |
| __put_user(host_st->st_ino, &target_st->__st_ino); |
| #endif |
| __put_user(host_st->st_mode, &target_st->st_mode); |
| __put_user(host_st->st_nlink, &target_st->st_nlink); |
| __put_user(host_st->st_uid, &target_st->st_uid); |
| __put_user(host_st->st_gid, &target_st->st_gid); |
| __put_user(host_st->st_rdev, &target_st->st_rdev); |
| __put_user(host_st->st_size, &target_st->st_size); |
| __put_user(host_st->st_blksize, &target_st->st_blksize); |
| __put_user(host_st->st_blocks, &target_st->st_blocks); |
| __put_user(host_st->st_atime, &target_st->target_st_atime); |
| __put_user(host_st->st_mtime, &target_st->target_st_mtime); |
| __put_user(host_st->st_ctime, &target_st->target_st_ctime); |
| #if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700 |
| __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec); |
| __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec); |
| __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec); |
| #endif |
| unlock_user_struct(target_st, target_addr, 1); |
| } else |
| #endif |
| { |
| #if defined(TARGET_HAS_STRUCT_STAT64) |
| struct target_stat64 *target_st; |
| #else |
| struct target_stat *target_st; |
| #endif |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) |
| return -TARGET_EFAULT; |
| memset(target_st, 0, sizeof(*target_st)); |
| __put_user(host_st->st_dev, &target_st->st_dev); |
| __put_user(host_st->st_ino, &target_st->st_ino); |
| #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO |
| __put_user(host_st->st_ino, &target_st->__st_ino); |
| #endif |
| __put_user(host_st->st_mode, &target_st->st_mode); |
| __put_user(host_st->st_nlink, &target_st->st_nlink); |
| __put_user(host_st->st_uid, &target_st->st_uid); |
| __put_user(host_st->st_gid, &target_st->st_gid); |
| __put_user(host_st->st_rdev, &target_st->st_rdev); |
| /* XXX: better use of kernel struct */ |
| __put_user(host_st->st_size, &target_st->st_size); |
| __put_user(host_st->st_blksize, &target_st->st_blksize); |
| __put_user(host_st->st_blocks, &target_st->st_blocks); |
| __put_user(host_st->st_atime, &target_st->target_st_atime); |
| __put_user(host_st->st_mtime, &target_st->target_st_mtime); |
| __put_user(host_st->st_ctime, &target_st->target_st_ctime); |
| #if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700 |
| __put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec); |
| __put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec); |
| __put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec); |
| #endif |
| unlock_user_struct(target_st, target_addr, 1); |
| } |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_statx) && defined(__NR_statx) |
| static inline abi_long host_to_target_statx(struct target_statx *host_stx, |
| abi_ulong target_addr) |
| { |
| struct target_statx *target_stx; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_stx, target_addr, 0)) { |
| return -TARGET_EFAULT; |
| } |
| memset(target_stx, 0, sizeof(*target_stx)); |
| |
| __put_user(host_stx->stx_mask, &target_stx->stx_mask); |
| __put_user(host_stx->stx_blksize, &target_stx->stx_blksize); |
| __put_user(host_stx->stx_attributes, &target_stx->stx_attributes); |
| __put_user(host_stx->stx_nlink, &target_stx->stx_nlink); |
| __put_user(host_stx->stx_uid, &target_stx->stx_uid); |
| __put_user(host_stx->stx_gid, &target_stx->stx_gid); |
| __put_user(host_stx->stx_mode, &target_stx->stx_mode); |
| __put_user(host_stx->stx_ino, &target_stx->stx_ino); |
| __put_user(host_stx->stx_size, &target_stx->stx_size); |
| __put_user(host_stx->stx_blocks, &target_stx->stx_blocks); |
| __put_user(host_stx->stx_attributes_mask, &target_stx->stx_attributes_mask); |
| __put_user(host_stx->stx_atime.tv_sec, &target_stx->stx_atime.tv_sec); |
| __put_user(host_stx->stx_atime.tv_nsec, &target_stx->stx_atime.tv_nsec); |
| __put_user(host_stx->stx_btime.tv_sec, &target_stx->stx_btime.tv_sec); |
| __put_user(host_stx->stx_btime.tv_nsec, &target_stx->stx_btime.tv_nsec); |
| __put_user(host_stx->stx_ctime.tv_sec, &target_stx->stx_ctime.tv_sec); |
| __put_user(host_stx->stx_ctime.tv_nsec, &target_stx->stx_ctime.tv_nsec); |
| __put_user(host_stx->stx_mtime.tv_sec, &target_stx->stx_mtime.tv_sec); |
| __put_user(host_stx->stx_mtime.tv_nsec, &target_stx->stx_mtime.tv_nsec); |
| __put_user(host_stx->stx_rdev_major, &target_stx->stx_rdev_major); |
| __put_user(host_stx->stx_rdev_minor, &target_stx->stx_rdev_minor); |
| __put_user(host_stx->stx_dev_major, &target_stx->stx_dev_major); |
| __put_user(host_stx->stx_dev_minor, &target_stx->stx_dev_minor); |
| |
| unlock_user_struct(target_stx, target_addr, 1); |
| |
| return 0; |
| } |
| #endif |
| |
| static int do_sys_futex(int *uaddr, int op, int val, |
| const struct timespec *timeout, int *uaddr2, |
| int val3) |
| { |
| #if HOST_LONG_BITS == 64 |
| #if defined(__NR_futex) |
| /* always a 64-bit time_t, it doesn't define _time64 version */ |
| return sys_futex(uaddr, op, val, timeout, uaddr2, val3); |
| |
| #endif |
| #else /* HOST_LONG_BITS == 64 */ |
| #if defined(__NR_futex_time64) |
| if (sizeof(timeout->tv_sec) == 8) { |
| /* _time64 function on 32bit arch */ |
| return sys_futex_time64(uaddr, op, val, timeout, uaddr2, val3); |
| } |
| #endif |
| #if defined(__NR_futex) |
| /* old function on 32bit arch */ |
| return sys_futex(uaddr, op, val, timeout, uaddr2, val3); |
| #endif |
| #endif /* HOST_LONG_BITS == 64 */ |
| g_assert_not_reached(); |
| } |
| |
| static int do_safe_futex(int *uaddr, int op, int val, |
| const struct timespec *timeout, int *uaddr2, |
| int val3) |
| { |
| #if HOST_LONG_BITS == 64 |
| #if defined(__NR_futex) |
| /* always a 64-bit time_t, it doesn't define _time64 version */ |
| return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3)); |
| #endif |
| #else /* HOST_LONG_BITS == 64 */ |
| #if defined(__NR_futex_time64) |
| if (sizeof(timeout->tv_sec) == 8) { |
| /* _time64 function on 32bit arch */ |
| return get_errno(safe_futex_time64(uaddr, op, val, timeout, uaddr2, |
| val3)); |
| } |
| #endif |
| #if defined(__NR_futex) |
| /* old function on 32bit arch */ |
| return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3)); |
| #endif |
| #endif /* HOST_LONG_BITS == 64 */ |
| return -TARGET_ENOSYS; |
| } |
| |
| /* ??? Using host futex calls even when target atomic operations |
| are not really atomic probably breaks things. However implementing |
| futexes locally would make futexes shared between multiple processes |
| tricky. However they're probably useless because guest atomic |
| operations won't work either. */ |
| #if defined(TARGET_NR_futex) |
| static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout, |
| target_ulong uaddr2, int val3) |
| { |
| struct timespec ts, *pts; |
| int base_op; |
| |
| /* ??? We assume FUTEX_* constants are the same on both host |
| and target. */ |
| #ifdef FUTEX_CMD_MASK |
| base_op = op & FUTEX_CMD_MASK; |
| #else |
| base_op = op; |
| #endif |
| switch (base_op) { |
| case FUTEX_WAIT: |
| case FUTEX_WAIT_BITSET: |
| if (timeout) { |
| pts = &ts; |
| target_to_host_timespec(pts, timeout); |
| } else { |
| pts = NULL; |
| } |
| return do_safe_futex(g2h(uaddr), op, tswap32(val), pts, NULL, val3); |
| case FUTEX_WAKE: |
| return do_safe_futex(g2h(uaddr), op, val, NULL, NULL, 0); |
| case FUTEX_FD: |
| return do_safe_futex(g2h(uaddr), op, val, NULL, NULL, 0); |
| case FUTEX_REQUEUE: |
| case FUTEX_CMP_REQUEUE: |
| case FUTEX_WAKE_OP: |
| /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the |
| TIMEOUT parameter is interpreted as a uint32_t by the kernel. |
| But the prototype takes a `struct timespec *'; insert casts |
| to satisfy the compiler. We do not need to tswap TIMEOUT |
| since it's not compared to guest memory. */ |
| pts = (struct timespec *)(uintptr_t) timeout; |
| return do_safe_futex(g2h(uaddr), op, val, pts, g2h(uaddr2), |
| (base_op == FUTEX_CMP_REQUEUE |
| ? tswap32(val3) |
| : val3)); |
| default: |
| return -TARGET_ENOSYS; |
| } |
| } |
| #endif |
| |
| #if defined(TARGET_NR_futex_time64) |
| static int do_futex_time64(target_ulong uaddr, int op, int val, target_ulong timeout, |
| target_ulong uaddr2, int val3) |
| { |
| struct timespec ts, *pts; |
| int base_op; |
| |
| /* ??? We assume FUTEX_* constants are the same on both host |
| and target. */ |
| #ifdef FUTEX_CMD_MASK |
| base_op = op & FUTEX_CMD_MASK; |
| #else |
| base_op = op; |
| #endif |
| switch (base_op) { |
| case FUTEX_WAIT: |
| case FUTEX_WAIT_BITSET: |
| if (timeout) { |
| pts = &ts; |
| target_to_host_timespec64(pts, timeout); |
| } else { |
| pts = NULL; |
| } |
| return do_safe_futex(g2h(uaddr), op, tswap32(val), pts, NULL, val3); |
| case FUTEX_WAKE: |
| return do_safe_futex(g2h(uaddr), op, val, NULL, NULL, 0); |
| case FUTEX_FD: |
| return do_safe_futex(g2h(uaddr), op, val, NULL, NULL, 0); |
| case FUTEX_REQUEUE: |
| case FUTEX_CMP_REQUEUE: |
| case FUTEX_WAKE_OP: |
| /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the |
| TIMEOUT parameter is interpreted as a uint32_t by the kernel. |
| But the prototype takes a `struct timespec *'; insert casts |
| to satisfy the compiler. We do not need to tswap TIMEOUT |
| since it's not compared to guest memory. */ |
| pts = (struct timespec *)(uintptr_t) timeout; |
| return do_safe_futex(g2h(uaddr), op, val, pts, g2h(uaddr2), |
| (base_op == FUTEX_CMP_REQUEUE |
| ? tswap32(val3) |
| : val3)); |
| default: |
| return -TARGET_ENOSYS; |
| } |
| } |
| #endif |
| |
| #if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
| static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname, |
| abi_long handle, abi_long mount_id, |
| abi_long flags) |
| { |
| struct file_handle *target_fh; |
| struct file_handle *fh; |
| int mid = 0; |
| abi_long ret; |
| char *name; |
| unsigned int size, total_size; |
| |
| if (get_user_s32(size, handle)) { |
| return -TARGET_EFAULT; |
| } |
| |
| name = lock_user_string(pathname); |
| if (!name) { |
| return -TARGET_EFAULT; |
| } |
| |
| total_size = sizeof(struct file_handle) + size; |
| target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0); |
| if (!target_fh) { |
| unlock_user(name, pathname, 0); |
| return -TARGET_EFAULT; |
| } |
| |
| fh = g_malloc0(total_size); |
| fh->handle_bytes = size; |
| |
| ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags)); |
| unlock_user(name, pathname, 0); |
| |
| /* man name_to_handle_at(2): |
| * Other than the use of the handle_bytes field, the caller should treat |
| * the file_handle structure as an opaque data type |
| */ |
| |
| memcpy(target_fh, fh, total_size); |
| target_fh->handle_bytes = tswap32(fh->handle_bytes); |
| target_fh->handle_type = tswap32(fh->handle_type); |
| g_free(fh); |
| unlock_user(target_fh, handle, total_size); |
| |
| if (put_user_s32(mid, mount_id)) { |
| return -TARGET_EFAULT; |
| } |
| |
| return ret; |
| |
| } |
| #endif |
| |
| #if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
| static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle, |
| abi_long flags) |
| { |
| struct file_handle *target_fh; |
| struct file_handle *fh; |
| unsigned int size, total_size; |
| abi_long ret; |
| |
| if (get_user_s32(size, handle)) { |
| return -TARGET_EFAULT; |
| } |
| |
| total_size = sizeof(struct file_handle) + size; |
| target_fh = lock_user(VERIFY_READ, handle, total_size, 1); |
| if (!target_fh) { |
| return -TARGET_EFAULT; |
| } |
| |
| fh = g_memdup(target_fh, total_size); |
| fh->handle_bytes = size; |
| fh->handle_type = tswap32(target_fh->handle_type); |
| |
| ret = get_errno(open_by_handle_at(mount_fd, fh, |
| target_to_host_bitmask(flags, fcntl_flags_tbl))); |
| |
| g_free(fh); |
| |
| unlock_user(target_fh, handle, total_size); |
| |
| return ret; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4) |
| |
| static abi_long do_signalfd4(int fd, abi_long mask, int flags) |
| { |
| int host_flags; |
| target_sigset_t *target_mask; |
| sigset_t host_mask; |
| abi_long ret; |
| |
| if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) { |
| return -TARGET_EINVAL; |
| } |
| if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) { |
| return -TARGET_EFAULT; |
| } |
| |
| target_to_host_sigset(&host_mask, target_mask); |
| |
| host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl); |
| |
| ret = get_errno(signalfd(fd, &host_mask, host_flags)); |
| if (ret >= 0) { |
| fd_trans_register(ret, &target_signalfd_trans); |
| } |
| |
| unlock_user_struct(target_mask, mask, 0); |
| |
| return ret; |
| } |
| #endif |
| |
| /* Map host to target signal numbers for the wait family of syscalls. |
| Assume all other status bits are the same. */ |
| int host_to_target_waitstatus(int status) |
| { |
| if (WIFSIGNALED(status)) { |
| return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f); |
| } |
| if (WIFSTOPPED(status)) { |
| return (host_to_target_signal(WSTOPSIG(status)) << 8) |
| | (status & 0xff); |
| } |
| return status; |
| } |
| |
| static int open_self_cmdline(void *cpu_env, int fd) |
| { |
| CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
| struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm; |
| int i; |
| |
| for (i = 0; i < bprm->argc; i++) { |
| size_t len = strlen(bprm->argv[i]) + 1; |
| |
| if (write(fd, bprm->argv[i], len) != len) { |
| return -1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int open_self_maps(void *cpu_env, int fd) |
| { |
| CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
| TaskState *ts = cpu->opaque; |
| GSList *map_info = read_self_maps(); |
| GSList *s; |
| int count; |
| |
| for (s = map_info; s; s = g_slist_next(s)) { |
| MapInfo *e = (MapInfo *) s->data; |
| |
| if (h2g_valid(e->start)) { |
| unsigned long min = e->start; |
| unsigned long max = e->end; |
| int flags = page_get_flags(h2g(min)); |
| const char *path; |
| |
| max = h2g_valid(max - 1) ? |
| max : (uintptr_t) g2h(GUEST_ADDR_MAX) + 1; |
| |
| if (page_check_range(h2g(min), max - min, flags) == -1) { |
| continue; |
| } |
| |
| if (h2g(min) == ts->info->stack_limit) { |
| path = "[stack]"; |
| } else { |
| path = e->path; |
| } |
| |
| count = dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr |
| " %c%c%c%c %08" PRIx64 " %s %"PRId64, |
| h2g(min), h2g(max - 1) + 1, |
| e->is_read ? 'r' : '-', |
| e->is_write ? 'w' : '-', |
| e->is_exec ? 'x' : '-', |
| e->is_priv ? 'p' : '-', |
| (uint64_t) e->offset, e->dev, e->inode); |
| if (path) { |
| dprintf(fd, "%*s%s\n", 73 - count, "", path); |
| } else { |
| dprintf(fd, "\n"); |
| } |
| } |
| } |
| |
| free_self_maps(map_info); |
| |
| #ifdef TARGET_VSYSCALL_PAGE |
| /* |
| * We only support execution from the vsyscall page. |
| * This is as if CONFIG_LEGACY_VSYSCALL_XONLY=y from v5.3. |
| */ |
| count = dprintf(fd, TARGET_FMT_lx "-" TARGET_FMT_lx |
| " --xp 00000000 00:00 0", |
| TARGET_VSYSCALL_PAGE, TARGET_VSYSCALL_PAGE + TARGET_PAGE_SIZE); |
| dprintf(fd, "%*s%s\n", 73 - count, "", "[vsyscall]"); |
| #endif |
| |
| return 0; |
| } |
| |
| static int open_self_stat(void *cpu_env, int fd) |
| { |
| CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
| TaskState *ts = cpu->opaque; |
| g_autoptr(GString) buf = g_string_new(NULL); |
| int i; |
| |
| for (i = 0; i < 44; i++) { |
| if (i == 0) { |
| /* pid */ |
| g_string_printf(buf, FMT_pid " ", getpid()); |
| } else if (i == 1) { |
| /* app name */ |
| gchar *bin = g_strrstr(ts->bprm->argv[0], "/"); |
| bin = bin ? bin + 1 : ts->bprm->argv[0]; |
| g_string_printf(buf, "(%.15s) ", bin); |
| } else if (i == 27) { |
| /* stack bottom */ |
| g_string_printf(buf, TARGET_ABI_FMT_ld " ", ts->info->start_stack); |
| } else { |
| /* for the rest, there is MasterCard */ |
| g_string_printf(buf, "0%c", i == 43 ? '\n' : ' '); |
| } |
| |
| if (write(fd, buf->str, buf->len) != buf->len) { |
| return -1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int open_self_auxv(void *cpu_env, int fd) |
| { |
| CPUState *cpu = env_cpu((CPUArchState *)cpu_env); |
| TaskState *ts = cpu->opaque; |
| abi_ulong auxv = ts->info->saved_auxv; |
| abi_ulong len = ts->info->auxv_len; |
| char *ptr; |
| |
| /* |
| * Auxiliary vector is stored in target process stack. |
| * read in whole auxv vector and copy it to file |
| */ |
| ptr = lock_user(VERIFY_READ, auxv, len, 0); |
| if (ptr != NULL) { |
| while (len > 0) { |
| ssize_t r; |
| r = write(fd, ptr, len); |
| if (r <= 0) { |
| break; |
| } |
| len -= r; |
| ptr += r; |
| } |
| lseek(fd, 0, SEEK_SET); |
| unlock_user(ptr, auxv, len); |
| } |
| |
| return 0; |
| } |
| |
| static int is_proc_myself(const char *filename, const char *entry) |
| { |
| if (!strncmp(filename, "/proc/", strlen("/proc/"))) { |
| filename += strlen("/proc/"); |
| if (!strncmp(filename, "self/", strlen("self/"))) { |
| filename += strlen("self/"); |
| } else if (*filename >= '1' && *filename <= '9') { |
| char myself[80]; |
| snprintf(myself, sizeof(myself), "%d/", getpid()); |
| if (!strncmp(filename, myself, strlen(myself))) { |
| filename += strlen(myself); |
| } else { |
| return 0; |
| } |
| } else { |
| return 0; |
| } |
| if (!strcmp(filename, entry)) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) || \ |
| defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA) |
| static int is_proc(const char *filename, const char *entry) |
| { |
| return strcmp(filename, entry) == 0; |
| } |
| #endif |
| |
| #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) |
| static int open_net_route(void *cpu_env, int fd) |
| { |
| FILE *fp; |
| char *line = NULL; |
| size_t len = 0; |
| ssize_t read; |
| |
| fp = fopen("/proc/net/route", "r"); |
| if (fp == NULL) { |
| return -1; |
| } |
| |
| /* read header */ |
| |
| read = getline(&line, &len, fp); |
| dprintf(fd, "%s", line); |
| |
| /* read routes */ |
| |
| while ((read = getline(&line, &len, fp)) != -1) { |
| char iface[16]; |
| uint32_t dest, gw, mask; |
| unsigned int flags, refcnt, use, metric, mtu, window, irtt; |
| int fields; |
| |
| fields = sscanf(line, |
| "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n", |
| iface, &dest, &gw, &flags, &refcnt, &use, &metric, |
| &mask, &mtu, &window, &irtt); |
| if (fields != 11) { |
| continue; |
| } |
| dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n", |
| iface, tswap32(dest), tswap32(gw), flags, refcnt, use, |
| metric, tswap32(mask), mtu, window, irtt); |
| } |
| |
| free(line); |
| fclose(fp); |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_SPARC) |
| static int open_cpuinfo(void *cpu_env, int fd) |
| { |
| dprintf(fd, "type\t\t: sun4u\n"); |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_HPPA) |
| static int open_cpuinfo(void *cpu_env, int fd) |
| { |
| dprintf(fd, "cpu family\t: PA-RISC 1.1e\n"); |
| dprintf(fd, "cpu\t\t: PA7300LC (PCX-L2)\n"); |
| dprintf(fd, "capabilities\t: os32\n"); |
| dprintf(fd, "model\t\t: 9000/778/B160L\n"); |
| dprintf(fd, "model name\t: Merlin L2 160 QEMU (9000/778/B160L)\n"); |
| return 0; |
| } |
| #endif |
| |
| #if defined(TARGET_M68K) |
| static int open_hardware(void *cpu_env, int fd) |
| { |
| dprintf(fd, "Model:\t\tqemu-m68k\n"); |
| return 0; |
| } |
| #endif |
| |
| static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode) |
| { |
| struct fake_open { |
| const char *filename; |
| int (*fill)(void *cpu_env, int fd); |
| int (*cmp)(const char *s1, const char *s2); |
| }; |
| const struct fake_open *fake_open; |
| static const struct fake_open fakes[] = { |
| { "maps", open_self_maps, is_proc_myself }, |
| { "stat", open_self_stat, is_proc_myself }, |
| { "auxv", open_self_auxv, is_proc_myself }, |
| { "cmdline", open_self_cmdline, is_proc_myself }, |
| #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) |
| { "/proc/net/route", open_net_route, is_proc }, |
| #endif |
| #if defined(TARGET_SPARC) || defined(TARGET_HPPA) |
| { "/proc/cpuinfo", open_cpuinfo, is_proc }, |
| #endif |
| #if defined(TARGET_M68K) |
| { "/proc/hardware", open_hardware, is_proc }, |
| #endif |
| { NULL, NULL, NULL } |
| }; |
| |
| if (is_proc_myself(pathname, "exe")) { |
| int execfd = qemu_getauxval(AT_EXECFD); |
| return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode); |
| } |
| |
| for (fake_open = fakes; fake_open->filename; fake_open++) { |
| if (fake_open->cmp(pathname, fake_open->filename)) { |
| break; |
| } |
| } |
| |
| if (fake_open->filename) { |
| const char *tmpdir; |
| char filename[PATH_MAX]; |
| int fd, r; |
| |
| /* create temporary file to map stat to */ |
| tmpdir = getenv("TMPDIR"); |
| if (!tmpdir) |
| tmpdir = "/tmp"; |
| snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir); |
| fd = mkstemp(filename); |
| if (fd < 0) { |
| return fd; |
| } |
| unlink(filename); |
| |
| if ((r = fake_open->fill(cpu_env, fd))) { |
| int e = errno; |
| close(fd); |
| errno = e; |
| return r; |
| } |
| lseek(fd, 0, SEEK_SET); |
| |
| return fd; |
| } |
| |
| return safe_openat(dirfd, path(pathname), flags, mode); |
| } |
| |
| #define TIMER_MAGIC 0x0caf0000 |
| #define TIMER_MAGIC_MASK 0xffff0000 |
| |
| /* Convert QEMU provided timer ID back to internal 16bit index format */ |
| static target_timer_t get_timer_id(abi_long arg) |
| { |
| target_timer_t timerid = arg; |
| |
| if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) { |
| return -TARGET_EINVAL; |
| } |
| |
| timerid &= 0xffff; |
| |
| if (timerid >= ARRAY_SIZE(g_posix_timers)) { |
| return -TARGET_EINVAL; |
| } |
| |
| return timerid; |
| } |
| |
| static int target_to_host_cpu_mask(unsigned long *host_mask, |
| size_t host_size, |
| abi_ulong target_addr, |
| size_t target_size) |
| { |
| unsigned target_bits = sizeof(abi_ulong) * 8; |
| unsigned host_bits = sizeof(*host_mask) * 8; |
| abi_ulong *target_mask; |
| unsigned i, j; |
| |
| assert(host_size >= target_size); |
| |
| target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1); |
| if (!target_mask) { |
| return -TARGET_EFAULT; |
| } |
| memset(host_mask, 0, host_size); |
| |
| for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) { |
| unsigned bit = i * target_bits; |
| abi_ulong val; |
| |
| __get_user(val, &target_mask[i]); |
| for (j = 0; j < target_bits; j++, bit++) { |
| if (val & (1UL << j)) { |
| host_mask[bit / host_bits] |= 1UL << (bit % host_bits); |
| } |
| } |
| } |
| |
| unlock_user(target_mask, target_addr, 0); |
| return 0; |
| } |
| |
| static int host_to_target_cpu_mask(const unsigned long *host_mask, |
| size_t host_size, |
| abi_ulong target_addr, |
| size_t target_size) |
| { |
| unsigned target_bits = sizeof(abi_ulong) * 8; |
| unsigned host_bits = sizeof(*host_mask) * 8; |
| abi_ulong *target_mask; |
| unsigned i, j; |
| |
| assert(host_size >= target_size); |
| |
| target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0); |
| if (!target_mask) { |
| return -TARGET_EFAULT; |
| } |
| |
| for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) { |
| unsigned bit = i * target_bits; |
| abi_ulong val = 0; |
| |
| for (j = 0; j < target_bits; j++, bit++) { |
| if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) { |
| val |= 1UL << j; |
| } |
| } |
| __put_user(val, &target_mask[i]); |
| } |
| |
| unlock_user(target_mask, target_addr, target_size); |
| return 0; |
| } |
| |
| /* This is an internal helper for do_syscall so that it is easier |
| * to have a single return point, so that actions, such as logging |
| * of syscall results, can be performed. |
| * All errnos that do_syscall() returns must be -TARGET_<errcode>. |
| */ |
| static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, |
| abi_long arg2, abi_long arg3, abi_long arg4, |
| abi_long arg5, abi_long arg6, abi_long arg7, |
| abi_long arg8) |
| { |
| CPUState *cpu = env_cpu(cpu_env); |
| abi_long ret; |
| #if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \ |
| || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \ |
| || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) \ |
| || defined(TARGET_NR_statx) |
| struct stat st; |
| #endif |
| #if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \ |
| || defined(TARGET_NR_fstatfs) |
| struct statfs stfs; |
| #endif |
| void *p; |
| |
| switch(num) { |
| case TARGET_NR_exit: |
| /* In old applications this may be used to implement _exit(2). |
| However in threaded applictions it is used for thread termination, |
| and _exit_group is used for application termination. |
| Do thread termination if we have more then one thread. */ |
| |
| if (block_signals()) { |
| return -TARGET_ERESTARTSYS; |
| } |
| |
| pthread_mutex_lock(&clone_lock); |
| |
| if (CPU_NEXT(first_cpu)) { |
| TaskState *ts = cpu->opaque; |
| |
| object_property_set_bool(OBJECT(cpu), false, "realized", NULL); |
| object_unref(OBJECT(cpu)); |
| /* |
| * At this point the CPU should be unrealized and removed |
| * from cpu lists. We can clean-up the rest of the thread |
| * data without the lock held. |
| */ |
| |
| pthread_mutex_unlock(&clone_lock); |
| |
| if (ts->child_tidptr) { |
| put_user_u32(0, ts->child_tidptr); |
| do_sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX, |
| NULL, NULL, 0); |
| } |
| thread_cpu = NULL; |
| g_free(ts); |
| rcu_unregister_thread(); |
| pthread_exit(NULL); |
| } |
| |
| pthread_mutex_unlock(&clone_lock); |
| preexit_cleanup(cpu_env, arg1); |
| _exit(arg1); |
| return 0; /* avoid warning */ |
| case TARGET_NR_read: |
| if (arg2 == 0 && arg3 == 0) { |
| return get_errno(safe_read(arg1, 0, 0)); |
| } else { |
| if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) |
| return -TARGET_EFAULT; |
| ret = get_errno(safe_read(arg1, p, arg3)); |
| if (ret >= 0 && |
| fd_trans_host_to_target_data(arg1)) { |
| ret = fd_trans_host_to_target_data(arg1)(p, ret); |
| } |
| unlock_user(p, arg2, ret); |
| } |
| return ret; |
| case TARGET_NR_write: |
| if (arg2 == 0 && arg3 == 0) { |
| return get_errno(safe_write(arg1, 0, 0)); |
| } |
| if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) |
| return -TARGET_EFAULT; |
| if (fd_trans_target_to_host_data(arg1)) { |
| void *copy = g_malloc(arg3); |
| memcpy(copy, p, arg3); |
| ret = fd_trans_target_to_host_data(arg1)(copy, arg3); |
| if (ret >= 0) { |
| ret = get_errno(safe_write(arg1, copy, ret)); |
| } |
| g_free(copy); |
| } else { |
| ret = get_errno(safe_write(arg1, p, arg3)); |
| } |
| unlock_user(p, arg2, 0); |
| return ret; |
| |
| #ifdef TARGET_NR_open |
| case TARGET_NR_open: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(do_openat(cpu_env, AT_FDCWD, p, |
| target_to_host_bitmask(arg2, fcntl_flags_tbl), |
| arg3)); |
| fd_trans_unregister(ret); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| case TARGET_NR_openat: |
| if (!(p = lock_user_string(arg2))) |
| return -TARGET_EFAULT; |
| ret = get_errno(do_openat(cpu_env, arg1, p, |
| target_to_host_bitmask(arg3, fcntl_flags_tbl), |
| arg4)); |
| fd_trans_unregister(ret); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
| case TARGET_NR_name_to_handle_at: |
| ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5); |
| return ret; |
| #endif |
| #if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE) |
| case TARGET_NR_open_by_handle_at: |
| ret = do_open_by_handle_at(arg1, arg2, arg3); |
| fd_trans_unregister(ret); |
| return ret; |
| #endif |
| case TARGET_NR_close: |
| fd_trans_unregister(arg1); |
| return get_errno(close(arg1)); |
| |
| case TARGET_NR_brk: |
| return do_brk(arg1); |
| #ifdef TARGET_NR_fork |
| case TARGET_NR_fork: |
| return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0)); |
| #endif |
| #ifdef TARGET_NR_waitpid |
| case TARGET_NR_waitpid: |
| { |
| int status; |
| ret = get_errno(safe_wait4(arg1, &status, arg3, 0)); |
| if (!is_error(ret) && arg2 && ret |
| && put_user_s32(host_to_target_waitstatus(status), arg2)) |
| return -TARGET_EFAULT; |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_waitid |
| case TARGET_NR_waitid: |
| { |
| siginfo_t info; |
| info.si_pid = 0; |
| ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL)); |
| if (!is_error(ret) && arg3 && info.si_pid != 0) { |
| if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) |
| return -TARGET_EFAULT; |
| host_to_target_siginfo(p, &info); |
| unlock_user(p, arg3, sizeof(target_siginfo_t)); |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_creat /* not on alpha */ |
| case TARGET_NR_creat: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(creat(p, arg2)); |
| fd_trans_unregister(ret); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_link |
| case TARGET_NR_link: |
| { |
| void * p2; |
| p = lock_user_string(arg1); |
| p2 = lock_user_string(arg2); |
| if (!p || !p2) |
| ret = -TARGET_EFAULT; |
| else |
| ret = get_errno(link(p, p2)); |
| unlock_user(p2, arg2, 0); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_linkat) |
| case TARGET_NR_linkat: |
| { |
| void * p2 = NULL; |
| if (!arg2 || !arg4) |
| return -TARGET_EFAULT; |
| p = lock_user_string(arg2); |
| p2 = lock_user_string(arg4); |
| if (!p || !p2) |
| ret = -TARGET_EFAULT; |
| else |
| ret = get_errno(linkat(arg1, p, arg3, p2, arg5)); |
| unlock_user(p, arg2, 0); |
| unlock_user(p2, arg4, 0); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_unlink |
| case TARGET_NR_unlink: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(unlink(p)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #if defined(TARGET_NR_unlinkat) |
| case TARGET_NR_unlinkat: |
| if (!(p = lock_user_string(arg2))) |
| return -TARGET_EFAULT; |
| ret = get_errno(unlinkat(arg1, p, arg3)); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| case TARGET_NR_execve: |
| { |
| char **argp, **envp; |
| int argc, envc; |
| abi_ulong gp; |
| abi_ulong guest_argp; |
| abi_ulong guest_envp; |
| abi_ulong addr; |
| char **q; |
| int total_size = 0; |
| |
| argc = 0; |
| guest_argp = arg2; |
| for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) { |
| if (get_user_ual(addr, gp)) |
| return -TARGET_EFAULT; |
| if (!addr) |
| break; |
| argc++; |
| } |
| envc = 0; |
| guest_envp = arg3; |
| for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) { |
| if (get_user_ual(addr, gp)) |
| return -TARGET_EFAULT; |
| if (!addr) |
| break; |
| envc++; |
| } |
| |
| argp = g_new0(char *, argc + 1); |
| envp = g_new0(char *, envc + 1); |
| |
| for (gp = guest_argp, q = argp; gp; |
| gp += sizeof(abi_ulong), q++) { |
| if (get_user_ual(addr, gp)) |
| goto execve_efault; |
| if (!addr) |
| break; |
| if (!(*q = lock_user_string(addr))) |
| goto execve_efault; |
| total_size += strlen(*q) + 1; |
| } |
| *q = NULL; |
| |
| for (gp = guest_envp, q = envp; gp; |
| gp += sizeof(abi_ulong), q++) { |
| if (get_user_ual(addr, gp)) |
| goto execve_efault; |
| if (!addr) |
| break; |
| if (!(*q = lock_user_string(addr))) |
| goto execve_efault; |
| total_size += strlen(*q) + 1; |
| } |
| *q = NULL; |
| |
| if (!(p = lock_user_string(arg1))) |
| goto execve_efault; |
| /* Although execve() is not an interruptible syscall it is |
| * a special case where we must use the safe_syscall wrapper: |
| * if we allow a signal to happen before we make the host |
| * syscall then we will 'lose' it, because at the point of |
| * execve the process leaves QEMU's control. So we use the |
| * safe syscall wrapper to ensure that we either take the |
| * signal as a guest signal, or else it does not happen |
| * before the execve completes and makes it the other |
| * program's problem. |
| */ |
| ret = get_errno(safe_execve(p, argp, envp)); |
| unlock_user(p, arg1, 0); |
| |
| goto execve_end; |
| |
| execve_efault: |
| ret = -TARGET_EFAULT; |
| |
| execve_end: |
| for (gp = guest_argp, q = argp; *q; |
| gp += sizeof(abi_ulong), q++) { |
| if (get_user_ual(addr, gp) |
| || !addr) |
| break; |
| unlock_user(*q, addr, 0); |
| } |
| for (gp = guest_envp, q = envp; *q; |
| gp += sizeof(abi_ulong), q++) { |
| if (get_user_ual(addr, gp) |
| || !addr) |
| break; |
| unlock_user(*q, addr, 0); |
| } |
| |
| g_free(argp); |
| g_free(envp); |
| } |
| return ret; |
| case TARGET_NR_chdir: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(chdir(p)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #ifdef TARGET_NR_time |
| case TARGET_NR_time: |
| { |
| time_t host_time; |
| ret = get_errno(time(&host_time)); |
| if (!is_error(ret) |
| && arg1 |
| && put_user_sal(host_time, arg1)) |
| return -TARGET_EFAULT; |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_mknod |
| case TARGET_NR_mknod: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(mknod(p, arg2, arg3)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #if defined(TARGET_NR_mknodat) |
| case TARGET_NR_mknodat: |
| if (!(p = lock_user_string(arg2))) |
| return -TARGET_EFAULT; |
| ret = get_errno(mknodat(arg1, p, arg3, arg4)); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_chmod |
| case TARGET_NR_chmod: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(chmod(p, arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_lseek |
| case TARGET_NR_lseek: |
| return get_errno(lseek(arg1, arg2, arg3)); |
| #endif |
| #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA) |
| /* Alpha specific */ |
| case TARGET_NR_getxpid: |
| ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid(); |
| return get_errno(getpid()); |
| #endif |
| #ifdef TARGET_NR_getpid |
| case TARGET_NR_getpid: |
| return get_errno(getpid()); |
| #endif |
| case TARGET_NR_mount: |
| { |
| /* need to look at the data field */ |
| void *p2, *p3; |
| |
| if (arg1) { |
| p = lock_user_string(arg1); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| } else { |
| p = NULL; |
| } |
| |
| p2 = lock_user_string(arg2); |
| if (!p2) { |
| if (arg1) { |
| unlock_user(p, arg1, 0); |
| } |
| return -TARGET_EFAULT; |
| } |
| |
| if (arg3) { |
| p3 = lock_user_string(arg3); |
| if (!p3) { |
| if (arg1) { |
| unlock_user(p, arg1, 0); |
| } |
| unlock_user(p2, arg2, 0); |
| return -TARGET_EFAULT; |
| } |
| } else { |
| p3 = NULL; |
| } |
| |
| /* FIXME - arg5 should be locked, but it isn't clear how to |
| * do that since it's not guaranteed to be a NULL-terminated |
| * string. |
| */ |
| if (!arg5) { |
| ret = mount(p, p2, p3, (unsigned long)arg4, NULL); |
| } else { |
| ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)); |
| } |
| ret = get_errno(ret); |
| |
| if (arg1) { |
| unlock_user(p, arg1, 0); |
| } |
| unlock_user(p2, arg2, 0); |
| if (arg3) { |
| unlock_user(p3, arg3, 0); |
| } |
| } |
| return ret; |
| #if defined(TARGET_NR_umount) || defined(TARGET_NR_oldumount) |
| #if defined(TARGET_NR_umount) |
| case TARGET_NR_umount: |
| #endif |
| #if defined(TARGET_NR_oldumount) |
| case TARGET_NR_oldumount: |
| #endif |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(umount(p)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_stime /* not on alpha */ |
| case TARGET_NR_stime: |
| { |
| struct timespec ts; |
| ts.tv_nsec = 0; |
| if (get_user_sal(ts.tv_sec, arg1)) { |
| return -TARGET_EFAULT; |
| } |
| return get_errno(clock_settime(CLOCK_REALTIME, &ts)); |
| } |
| #endif |
| #ifdef TARGET_NR_alarm /* not on alpha */ |
| case TARGET_NR_alarm: |
| return alarm(arg1); |
| #endif |
| #ifdef TARGET_NR_pause /* not on alpha */ |
| case TARGET_NR_pause: |
| if (!block_signals()) { |
| sigsuspend(&((TaskState *)cpu->opaque)->signal_mask); |
| } |
| return -TARGET_EINTR; |
| #endif |
| #ifdef TARGET_NR_utime |
| case TARGET_NR_utime: |
| { |
| struct utimbuf tbuf, *host_tbuf; |
| struct target_utimbuf *target_tbuf; |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) |
| return -TARGET_EFAULT; |
| tbuf.actime = tswapal(target_tbuf->actime); |
| tbuf.modtime = tswapal(target_tbuf->modtime); |
| unlock_user_struct(target_tbuf, arg2, 0); |
| host_tbuf = &tbuf; |
| } else { |
| host_tbuf = NULL; |
| } |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(utime(p, host_tbuf)); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_utimes |
| case TARGET_NR_utimes: |
| { |
| struct timeval *tvp, tv[2]; |
| if (arg2) { |
| if (copy_from_user_timeval(&tv[0], arg2) |
| || copy_from_user_timeval(&tv[1], |
| arg2 + sizeof(struct target_timeval))) |
| return -TARGET_EFAULT; |
| tvp = tv; |
| } else { |
| tvp = NULL; |
| } |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(utimes(p, tvp)); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_futimesat) |
| case TARGET_NR_futimesat: |
| { |
| struct timeval *tvp, tv[2]; |
| if (arg3) { |
| if (copy_from_user_timeval(&tv[0], arg3) |
| || copy_from_user_timeval(&tv[1], |
| arg3 + sizeof(struct target_timeval))) |
| return -TARGET_EFAULT; |
| tvp = tv; |
| } else { |
| tvp = NULL; |
| } |
| if (!(p = lock_user_string(arg2))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(futimesat(arg1, path(p), tvp)); |
| unlock_user(p, arg2, 0); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_access |
| case TARGET_NR_access: |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(access(path(p), arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) |
| case TARGET_NR_faccessat: |
| if (!(p = lock_user_string(arg2))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(faccessat(arg1, p, arg3, 0)); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_nice /* not on alpha */ |
| case TARGET_NR_nice: |
| return get_errno(nice(arg1)); |
| #endif |
| case TARGET_NR_sync: |
| sync(); |
| return 0; |
| #if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS) |
| case TARGET_NR_syncfs: |
| return get_errno(syncfs(arg1)); |
| #endif |
| case TARGET_NR_kill: |
| return get_errno(safe_kill(arg1, target_to_host_signal(arg2))); |
| #ifdef TARGET_NR_rename |
| case TARGET_NR_rename: |
| { |
| void *p2; |
| p = lock_user_string(arg1); |
| p2 = lock_user_string(arg2); |
| if (!p || !p2) |
| ret = -TARGET_EFAULT; |
| else |
| ret = get_errno(rename(p, p2)); |
| unlock_user(p2, arg2, 0); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_renameat) |
| case TARGET_NR_renameat: |
| { |
| void *p2; |
| p = lock_user_string(arg2); |
| p2 = lock_user_string(arg4); |
| if (!p || !p2) |
| ret = -TARGET_EFAULT; |
| else |
| ret = get_errno(renameat(arg1, p, arg3, p2)); |
| unlock_user(p2, arg4, 0); |
| unlock_user(p, arg2, 0); |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_renameat2) |
| case TARGET_NR_renameat2: |
| { |
| void *p2; |
| p = lock_user_string(arg2); |
| p2 = lock_user_string(arg4); |
| if (!p || !p2) { |
| ret = -TARGET_EFAULT; |
| } else { |
| ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5)); |
| } |
| unlock_user(p2, arg4, 0); |
| unlock_user(p, arg2, 0); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_mkdir |
| case TARGET_NR_mkdir: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(mkdir(p, arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #if defined(TARGET_NR_mkdirat) |
| case TARGET_NR_mkdirat: |
| if (!(p = lock_user_string(arg2))) |
| return -TARGET_EFAULT; |
| ret = get_errno(mkdirat(arg1, p, arg3)); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_rmdir |
| case TARGET_NR_rmdir: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(rmdir(p)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| case TARGET_NR_dup: |
| ret = get_errno(dup(arg1)); |
| if (ret >= 0) { |
| fd_trans_dup(arg1, ret); |
| } |
| return ret; |
| #ifdef TARGET_NR_pipe |
| case TARGET_NR_pipe: |
| return do_pipe(cpu_env, arg1, 0, 0); |
| #endif |
| #ifdef TARGET_NR_pipe2 |
| case TARGET_NR_pipe2: |
| return do_pipe(cpu_env, arg1, |
| target_to_host_bitmask(arg2, fcntl_flags_tbl), 1); |
| #endif |
| case TARGET_NR_times: |
| { |
| struct target_tms *tmsp; |
| struct tms tms; |
| ret = get_errno(times(&tms)); |
| if (arg1) { |
| tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); |
| if (!tmsp) |
| return -TARGET_EFAULT; |
| tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime)); |
| tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime)); |
| tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime)); |
| tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime)); |
| } |
| if (!is_error(ret)) |
| ret = host_to_target_clock_t(ret); |
| } |
| return ret; |
| case TARGET_NR_acct: |
| if (arg1 == 0) { |
| ret = get_errno(acct(NULL)); |
| } else { |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(acct(path(p))); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #ifdef TARGET_NR_umount2 |
| case TARGET_NR_umount2: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(umount2(p, arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| case TARGET_NR_ioctl: |
| return do_ioctl(arg1, arg2, arg3); |
| #ifdef TARGET_NR_fcntl |
| case TARGET_NR_fcntl: |
| return do_fcntl(arg1, arg2, arg3); |
| #endif |
| case TARGET_NR_setpgid: |
| return get_errno(setpgid(arg1, arg2)); |
| case TARGET_NR_umask: |
| return get_errno(umask(arg1)); |
| case TARGET_NR_chroot: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(chroot(p)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #ifdef TARGET_NR_dup2 |
| case TARGET_NR_dup2: |
| ret = get_errno(dup2(arg1, arg2)); |
| if (ret >= 0) { |
| fd_trans_dup(arg1, arg2); |
| } |
| return ret; |
| #endif |
| #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) |
| case TARGET_NR_dup3: |
| { |
| int host_flags; |
| |
| if ((arg3 & ~TARGET_O_CLOEXEC) != 0) { |
| return -EINVAL; |
| } |
| host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl); |
| ret = get_errno(dup3(arg1, arg2, host_flags)); |
| if (ret >= 0) { |
| fd_trans_dup(arg1, arg2); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_getppid /* not on alpha */ |
| case TARGET_NR_getppid: |
| return get_errno(getppid()); |
| #endif |
| #ifdef TARGET_NR_getpgrp |
| case TARGET_NR_getpgrp: |
| return get_errno(getpgrp()); |
| #endif |
| case TARGET_NR_setsid: |
| return get_errno(setsid()); |
| #ifdef TARGET_NR_sigaction |
| case TARGET_NR_sigaction: |
| { |
| #if defined(TARGET_ALPHA) |
| struct target_sigaction act, oact, *pact = 0; |
| struct target_old_sigaction *old_act; |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) |
| return -TARGET_EFAULT; |
| act._sa_handler = old_act->_sa_handler; |
| target_siginitset(&act.sa_mask, old_act->sa_mask); |
| act.sa_flags = old_act->sa_flags; |
| act.sa_restorer = 0; |
| unlock_user_struct(old_act, arg2, 0); |
| pact = &act; |
| } |
| ret = get_errno(do_sigaction(arg1, pact, &oact)); |
| if (!is_error(ret) && arg3) { |
| if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) |
| return -TARGET_EFAULT; |
| old_act->_sa_handler = oact._sa_handler; |
| old_act->sa_mask = oact.sa_mask.sig[0]; |
| old_act->sa_flags = oact.sa_flags; |
| unlock_user_struct(old_act, arg3, 1); |
| } |
| #elif defined(TARGET_MIPS) |
| struct target_sigaction act, oact, *pact, *old_act; |
| |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) |
| return -TARGET_EFAULT; |
| act._sa_handler = old_act->_sa_handler; |
| target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); |
| act.sa_flags = old_act->sa_flags; |
| unlock_user_struct(old_act, arg2, 0); |
| pact = &act; |
| } else { |
| pact = NULL; |
| } |
| |
| ret = get_errno(do_sigaction(arg1, pact, &oact)); |
| |
| if (!is_error(ret) && arg3) { |
| if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) |
| return -TARGET_EFAULT; |
| old_act->_sa_handler = oact._sa_handler; |
| old_act->sa_flags = oact.sa_flags; |
| old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; |
| old_act->sa_mask.sig[1] = 0; |
| old_act->sa_mask.sig[2] = 0; |
| old_act->sa_mask.sig[3] = 0; |
| unlock_user_struct(old_act, arg3, 1); |
| } |
| #else |
| struct target_old_sigaction *old_act; |
| struct target_sigaction act, oact, *pact; |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) |
| return -TARGET_EFAULT; |
| act._sa_handler = old_act->_sa_handler; |
| target_siginitset(&act.sa_mask, old_act->sa_mask); |
| act.sa_flags = old_act->sa_flags; |
| act.sa_restorer = old_act->sa_restorer; |
| #ifdef TARGET_ARCH_HAS_KA_RESTORER |
| act.ka_restorer = 0; |
| #endif |
| unlock_user_struct(old_act, arg2, 0); |
| pact = &act; |
| } else { |
| pact = NULL; |
| } |
| ret = get_errno(do_sigaction(arg1, pact, &oact)); |
| if (!is_error(ret) && arg3) { |
| if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) |
| return -TARGET_EFAULT; |
| old_act->_sa_handler = oact._sa_handler; |
| old_act->sa_mask = oact.sa_mask.sig[0]; |
| old_act->sa_flags = oact.sa_flags; |
| old_act->sa_restorer = oact.sa_restorer; |
| unlock_user_struct(old_act, arg3, 1); |
| } |
| #endif |
| } |
| return ret; |
| #endif |
| case TARGET_NR_rt_sigaction: |
| { |
| #if defined(TARGET_ALPHA) |
| /* For Alpha and SPARC this is a 5 argument syscall, with |
| * a 'restorer' parameter which must be copied into the |
| * sa_restorer field of the sigaction struct. |
| * For Alpha that 'restorer' is arg5; for SPARC it is arg4, |
| * and arg5 is the sigsetsize. |
| * Alpha also has a separate rt_sigaction struct that it uses |
| * here; SPARC uses the usual sigaction struct. |
| */ |
| struct target_rt_sigaction *rt_act; |
| struct target_sigaction act, oact, *pact = 0; |
| |
| if (arg4 != sizeof(target_sigset_t)) { |
| return -TARGET_EINVAL; |
| } |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) |
| return -TARGET_EFAULT; |
| act._sa_handler = rt_act->_sa_handler; |
| act.sa_mask = rt_act->sa_mask; |
| act.sa_flags = rt_act->sa_flags; |
| act.sa_restorer = arg5; |
| unlock_user_struct(rt_act, arg2, 0); |
| pact = &act; |
| } |
| ret = get_errno(do_sigaction(arg1, pact, &oact)); |
| if (!is_error(ret) && arg3) { |
| if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0)) |
| return -TARGET_EFAULT; |
| rt_act->_sa_handler = oact._sa_handler; |
| rt_act->sa_mask = oact.sa_mask; |
| rt_act->sa_flags = oact.sa_flags; |
| unlock_user_struct(rt_act, arg3, 1); |
| } |
| #else |
| #ifdef TARGET_SPARC |
| target_ulong restorer = arg4; |
| target_ulong sigsetsize = arg5; |
| #else |
| target_ulong sigsetsize = arg4; |
| #endif |
| struct target_sigaction *act; |
| struct target_sigaction *oact; |
| |
| if (sigsetsize != sizeof(target_sigset_t)) { |
| return -TARGET_EINVAL; |
| } |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) { |
| return -TARGET_EFAULT; |
| } |
| #ifdef TARGET_ARCH_HAS_KA_RESTORER |
| act->ka_restorer = restorer; |
| #endif |
| } else { |
| act = NULL; |
| } |
| if (arg3) { |
| if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { |
| ret = -TARGET_EFAULT; |
| goto rt_sigaction_fail; |
| } |
| } else |
| oact = NULL; |
| ret = get_errno(do_sigaction(arg1, act, oact)); |
| rt_sigaction_fail: |
| if (act) |
| unlock_user_struct(act, arg2, 0); |
| if (oact) |
| unlock_user_struct(oact, arg3, 1); |
| #endif |
| } |
| return ret; |
| #ifdef TARGET_NR_sgetmask /* not on alpha */ |
| case TARGET_NR_sgetmask: |
| { |
| sigset_t cur_set; |
| abi_ulong target_set; |
| ret = do_sigprocmask(0, NULL, &cur_set); |
| if (!ret) { |
| host_to_target_old_sigset(&target_set, &cur_set); |
| ret = target_set; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_ssetmask /* not on alpha */ |
| case TARGET_NR_ssetmask: |
| { |
| sigset_t set, oset; |
| abi_ulong target_set = arg1; |
| target_to_host_old_sigset(&set, &target_set); |
| ret = do_sigprocmask(SIG_SETMASK, &set, &oset); |
| if (!ret) { |
| host_to_target_old_sigset(&target_set, &oset); |
| ret = target_set; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_sigprocmask |
| case TARGET_NR_sigprocmask: |
| { |
| #if defined(TARGET_ALPHA) |
| sigset_t set, oldset; |
| abi_ulong mask; |
| int how; |
| |
| switch (arg1) { |
| case TARGET_SIG_BLOCK: |
| how = SIG_BLOCK; |
| break; |
| case TARGET_SIG_UNBLOCK: |
| how = SIG_UNBLOCK; |
| break; |
| case TARGET_SIG_SETMASK: |
| how = SIG_SETMASK; |
| break; |
| default: |
| return -TARGET_EINVAL; |
| } |
| mask = arg2; |
| target_to_host_old_sigset(&set, &mask); |
| |
| ret = do_sigprocmask(how, &set, &oldset); |
| if (!is_error(ret)) { |
| host_to_target_old_sigset(&mask, &oldset); |
| ret = mask; |
| ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */ |
| } |
| #else |
| sigset_t set, oldset, *set_ptr; |
| int how; |
| |
| if (arg2) { |
| switch (arg1) { |
| case TARGET_SIG_BLOCK: |
| how = SIG_BLOCK; |
| break; |
| case TARGET_SIG_UNBLOCK: |
| how = SIG_UNBLOCK; |
| break; |
| case TARGET_SIG_SETMASK: |
| how = SIG_SETMASK; |
| break; |
| default: |
| return -TARGET_EINVAL; |
| } |
| if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) |
| return -TARGET_EFAULT; |
| target_to_host_old_sigset(&set, p); |
| unlock_user(p, arg2, 0); |
| set_ptr = &set; |
| } else { |
| how = 0; |
| set_ptr = NULL; |
| } |
| ret = do_sigprocmask(how, set_ptr, &oldset); |
| if (!is_error(ret) && arg3) { |
| if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) |
| return -TARGET_EFAULT; |
| host_to_target_old_sigset(p, &oldset); |
| unlock_user(p, arg3, sizeof(target_sigset_t)); |
| } |
| #endif |
| } |
| return ret; |
| #endif |
| case TARGET_NR_rt_sigprocmask: |
| { |
| int how = arg1; |
| sigset_t set, oldset, *set_ptr; |
| |
| if (arg4 != sizeof(target_sigset_t)) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (arg2) { |
| switch(how) { |
| case TARGET_SIG_BLOCK: |
| how = SIG_BLOCK; |
| break; |
| case TARGET_SIG_UNBLOCK: |
| how = SIG_UNBLOCK; |
| break; |
| case TARGET_SIG_SETMASK: |
| how = SIG_SETMASK; |
| break; |
| default: |
| return -TARGET_EINVAL; |
| } |
| if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) |
| return -TARGET_EFAULT; |
| target_to_host_sigset(&set, p); |
| unlock_user(p, arg2, 0); |
| set_ptr = &set; |
| } else { |
| how = 0; |
| set_ptr = NULL; |
| } |
| ret = do_sigprocmask(how, set_ptr, &oldset); |
| if (!is_error(ret) && arg3) { |
| if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) |
| return -TARGET_EFAULT; |
| host_to_target_sigset(p, &oldset); |
| unlock_user(p, arg3, sizeof(target_sigset_t)); |
| } |
| } |
| return ret; |
| #ifdef TARGET_NR_sigpending |
| case TARGET_NR_sigpending: |
| { |
| sigset_t set; |
| ret = get_errno(sigpending(&set)); |
| if (!is_error(ret)) { |
| if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) |
| return -TARGET_EFAULT; |
| host_to_target_old_sigset(p, &set); |
| unlock_user(p, arg1, sizeof(target_sigset_t)); |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_rt_sigpending: |
| { |
| sigset_t set; |
| |
| /* Yes, this check is >, not != like most. We follow the kernel's |
| * logic and it does it like this because it implements |
| * NR_sigpending through the same code path, and in that case |
| * the old_sigset_t is smaller in size. |
| */ |
| if (arg2 > sizeof(target_sigset_t)) { |
| return -TARGET_EINVAL; |
| } |
| |
| ret = get_errno(sigpending(&set)); |
| if (!is_error(ret)) { |
| if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) |
| return -TARGET_EFAULT; |
| host_to_target_sigset(p, &set); |
| unlock_user(p, arg1, sizeof(target_sigset_t)); |
| } |
| } |
| return ret; |
| #ifdef TARGET_NR_sigsuspend |
| case TARGET_NR_sigsuspend: |
| { |
| TaskState *ts = cpu->opaque; |
| #if defined(TARGET_ALPHA) |
| abi_ulong mask = arg1; |
| target_to_host_old_sigset(&ts->sigsuspend_mask, &mask); |
| #else |
| if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
| return -TARGET_EFAULT; |
| target_to_host_old_sigset(&ts->sigsuspend_mask, p); |
| unlock_user(p, arg1, 0); |
| #endif |
| ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask, |
| SIGSET_T_SIZE)); |
| if (ret != -TARGET_ERESTARTSYS) { |
| ts->in_sigsuspend = 1; |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_rt_sigsuspend: |
| { |
| TaskState *ts = cpu->opaque; |
| |
| if (arg2 != sizeof(target_sigset_t)) { |
| return -TARGET_EINVAL; |
| } |
| if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
| return -TARGET_EFAULT; |
| target_to_host_sigset(&ts->sigsuspend_mask, p); |
| unlock_user(p, arg1, 0); |
| ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask, |
| SIGSET_T_SIZE)); |
| if (ret != -TARGET_ERESTARTSYS) { |
| ts->in_sigsuspend = 1; |
| } |
| } |
| return ret; |
| #ifdef TARGET_NR_rt_sigtimedwait |
| case TARGET_NR_rt_sigtimedwait: |
| { |
| sigset_t set; |
| struct timespec uts, *puts; |
| siginfo_t uinfo; |
| |
| if (arg4 != sizeof(target_sigset_t)) { |
| return -TARGET_EINVAL; |
| } |
| |
| if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
| return -TARGET_EFAULT; |
| target_to_host_sigset(&set, p); |
| unlock_user(p, arg1, 0); |
| if (arg3) { |
| puts = &uts; |
| target_to_host_timespec(puts, arg3); |
| } else { |
| puts = NULL; |
| } |
| ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts, |
| SIGSET_T_SIZE)); |
| if (!is_error(ret)) { |
| if (arg2) { |
| p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), |
| 0); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| host_to_target_siginfo(p, &uinfo); |
| unlock_user(p, arg2, sizeof(target_siginfo_t)); |
| } |
| ret = host_to_target_signal(ret); |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_rt_sigqueueinfo: |
| { |
| siginfo_t uinfo; |
| |
| p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| target_to_host_siginfo(&uinfo, p); |
| unlock_user(p, arg3, 0); |
| ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); |
| } |
| return ret; |
| case TARGET_NR_rt_tgsigqueueinfo: |
| { |
| siginfo_t uinfo; |
| |
| p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| target_to_host_siginfo(&uinfo, p); |
| unlock_user(p, arg4, 0); |
| ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo)); |
| } |
| return ret; |
| #ifdef TARGET_NR_sigreturn |
| case TARGET_NR_sigreturn: |
| if (block_signals()) { |
| return -TARGET_ERESTARTSYS; |
| } |
| return do_sigreturn(cpu_env); |
| #endif |
| case TARGET_NR_rt_sigreturn: |
| if (block_signals()) { |
| return -TARGET_ERESTARTSYS; |
| } |
| return do_rt_sigreturn(cpu_env); |
| case TARGET_NR_sethostname: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(sethostname(p, arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #ifdef TARGET_NR_setrlimit |
| case TARGET_NR_setrlimit: |
| { |
| int resource = target_to_host_resource(arg1); |
| struct target_rlimit *target_rlim; |
| struct rlimit rlim; |
| if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) |
| return -TARGET_EFAULT; |
| rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur); |
| rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max); |
| unlock_user_struct(target_rlim, arg2, 0); |
| /* |
| * If we just passed through resource limit settings for memory then |
| * they would also apply to QEMU's own allocations, and QEMU will |
| * crash or hang or die if its allocations fail. Ideally we would |
| * track the guest allocations in QEMU and apply the limits ourselves. |
| * For now, just tell the guest the call succeeded but don't actually |
| * limit anything. |
| */ |
| if (resource != RLIMIT_AS && |
| resource != RLIMIT_DATA && |
| resource != RLIMIT_STACK) { |
| return get_errno(setrlimit(resource, &rlim)); |
| } else { |
| return 0; |
| } |
| } |
| #endif |
| #ifdef TARGET_NR_getrlimit |
| case TARGET_NR_getrlimit: |
| { |
| int resource = target_to_host_resource(arg1); |
| struct target_rlimit *target_rlim; |
| struct rlimit rlim; |
| |
| ret = get_errno(getrlimit(resource, &rlim)); |
| if (!is_error(ret)) { |
| if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) |
| return -TARGET_EFAULT; |
| target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); |
| target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); |
| unlock_user_struct(target_rlim, arg2, 1); |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_getrusage: |
| { |
| struct rusage rusage; |
| ret = get_errno(getrusage(arg1, &rusage)); |
| if (!is_error(ret)) { |
| ret = host_to_target_rusage(arg2, &rusage); |
| } |
| } |
| return ret; |
| #if defined(TARGET_NR_gettimeofday) |
| case TARGET_NR_gettimeofday: |
| { |
| struct timeval tv; |
| struct timezone tz; |
| |
| ret = get_errno(gettimeofday(&tv, &tz)); |
| if (!is_error(ret)) { |
| if (arg1 && copy_to_user_timeval(arg1, &tv)) { |
| return -TARGET_EFAULT; |
| } |
| if (arg2 && copy_to_user_timezone(arg2, &tz)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_settimeofday) |
| case TARGET_NR_settimeofday: |
| { |
| struct timeval tv, *ptv = NULL; |
| struct timezone tz, *ptz = NULL; |
| |
| if (arg1) { |
| if (copy_from_user_timeval(&tv, arg1)) { |
| return -TARGET_EFAULT; |
| } |
| ptv = &tv; |
| } |
| |
| if (arg2) { |
| if (copy_from_user_timezone(&tz, arg2)) { |
| return -TARGET_EFAULT; |
| } |
| ptz = &tz; |
| } |
| |
| return get_errno(settimeofday(ptv, ptz)); |
| } |
| #endif |
| #if defined(TARGET_NR_select) |
| case TARGET_NR_select: |
| #if defined(TARGET_WANT_NI_OLD_SELECT) |
| /* some architectures used to have old_select here |
| * but now ENOSYS it. |
| */ |
| ret = -TARGET_ENOSYS; |
| #elif defined(TARGET_WANT_OLD_SYS_SELECT) |
| ret = do_old_select(arg1); |
| #else |
| ret = do_select(arg1, arg2, arg3, arg4, arg5); |
| #endif |
| return ret; |
| #endif |
| #ifdef TARGET_NR_pselect6 |
| case TARGET_NR_pselect6: |
| { |
| abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr; |
| fd_set rfds, wfds, efds; |
| fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; |
| struct timespec ts, *ts_ptr; |
| |
| /* |
| * The 6th arg is actually two args smashed together, |
| * so we cannot use the C library. |
| */ |
| sigset_t set; |
| struct { |
| sigset_t *set; |
| size_t size; |
| } sig, *sig_ptr; |
| |
| abi_ulong arg_sigset, arg_sigsize, *arg7; |
| target_sigset_t *target_sigset; |
| |
| n = arg1; |
| rfd_addr = arg2; |
| wfd_addr = arg3; |
| efd_addr = arg4; |
| ts_addr = arg5; |
| |
| ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n); |
| if (ret) { |
| return ret; |
| } |
| ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); |
| if (ret) { |
| return ret; |
| } |
| ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); |
| if (ret) { |
| return ret; |
| } |
| |
| /* |
| * This takes a timespec, and not a timeval, so we cannot |
| * use the do_select() helper ... |
| */ |
| if (ts_addr) { |
| if (target_to_host_timespec(&ts, ts_addr)) { |
| return -TARGET_EFAULT; |
| } |
| ts_ptr = &ts; |
| } else { |
| ts_ptr = NULL; |
| } |
| |
| /* Extract the two packed args for the sigset */ |
| if (arg6) { |
| sig_ptr = &sig; |
| sig.size = SIGSET_T_SIZE; |
| |
| arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1); |
| if (!arg7) { |
| return -TARGET_EFAULT; |
| } |
| arg_sigset = tswapal(arg7[0]); |
| arg_sigsize = tswapal(arg7[1]); |
| unlock_user(arg7, arg6, 0); |
| |
| if (arg_sigset) { |
| sig.set = &set; |
| if (arg_sigsize != sizeof(*target_sigset)) { |
| /* Like the kernel, we enforce correct size sigsets */ |
| return -TARGET_EINVAL; |
| } |
| target_sigset = lock_user(VERIFY_READ, arg_sigset, |
| sizeof(*target_sigset), 1); |
| if (!target_sigset) { |
| return -TARGET_EFAULT; |
| } |
| target_to_host_sigset(&set, target_sigset); |
| unlock_user(target_sigset, arg_sigset, 0); |
| } else { |
| sig.set = NULL; |
| } |
| } else { |
| sig_ptr = NULL; |
| } |
| |
| ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr, |
| ts_ptr, sig_ptr)); |
| |
| if (!is_error(ret)) { |
| if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) |
| return -TARGET_EFAULT; |
| if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) |
| return -TARGET_EFAULT; |
| if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) |
| return -TARGET_EFAULT; |
| |
| if (ts_addr && host_to_target_timespec(ts_addr, &ts)) |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_symlink |
| case TARGET_NR_symlink: |
| { |
| void *p2; |
| p = lock_user_string(arg1); |
| p2 = lock_user_string(arg2); |
| if (!p || !p2) |
| ret = -TARGET_EFAULT; |
| else |
| ret = get_errno(symlink(p, p2)); |
| unlock_user(p2, arg2, 0); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_symlinkat) |
| case TARGET_NR_symlinkat: |
| { |
| void *p2; |
| p = lock_user_string(arg1); |
| p2 = lock_user_string(arg3); |
| if (!p || !p2) |
| ret = -TARGET_EFAULT; |
| else |
| ret = get_errno(symlinkat(p, arg2, p2)); |
| unlock_user(p2, arg3, 0); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_readlink |
| case TARGET_NR_readlink: |
| { |
| void *p2; |
| p = lock_user_string(arg1); |
| p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
| if (!p || !p2) { |
| ret = -TARGET_EFAULT; |
| } else if (!arg3) { |
| /* Short circuit this for the magic exe check. */ |
| ret = -TARGET_EINVAL; |
| } else if (is_proc_myself((const char *)p, "exe")) { |
| char real[PATH_MAX], *temp; |
| temp = realpath(exec_path, real); |
| /* Return value is # of bytes that we wrote to the buffer. */ |
| if (temp == NULL) { |
| ret = get_errno(-1); |
| } else { |
| /* Don't worry about sign mismatch as earlier mapping |
| * logic would have thrown a bad address error. */ |
| ret = MIN(strlen(real), arg3); |
| /* We cannot NUL terminate the string. */ |
| memcpy(p2, real, ret); |
| } |
| } else { |
| ret = get_errno(readlink(path(p), p2, arg3)); |
| } |
| unlock_user(p2, arg2, ret); |
| unlock_user(p, arg1, 0); |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_readlinkat) |
| case TARGET_NR_readlinkat: |
| { |
| void *p2; |
| p = lock_user_string(arg2); |
| p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); |
| if (!p || !p2) { |
| ret = -TARGET_EFAULT; |
| } else if (is_proc_myself((const char *)p, "exe")) { |
| char real[PATH_MAX], *temp; |
| temp = realpath(exec_path, real); |
| ret = temp == NULL ? get_errno(-1) : strlen(real) ; |
| snprintf((char *)p2, arg4, "%s", real); |
| } else { |
| ret = get_errno(readlinkat(arg1, path(p), p2, arg4)); |
| } |
| unlock_user(p2, arg3, ret); |
| unlock_user(p, arg2, 0); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_swapon |
| case TARGET_NR_swapon: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(swapon(p, arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| case TARGET_NR_reboot: |
| if (arg3 == LINUX_REBOOT_CMD_RESTART2) { |
| /* arg4 must be ignored in all other cases */ |
| p = lock_user_string(arg4); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(reboot(arg1, arg2, arg3, p)); |
| unlock_user(p, arg4, 0); |
| } else { |
| ret = get_errno(reboot(arg1, arg2, arg3, NULL)); |
| } |
| return ret; |
| #ifdef TARGET_NR_mmap |
| case TARGET_NR_mmap: |
| #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \ |
| (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \ |
| defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \ |
| || defined(TARGET_S390X) |
| { |
| abi_ulong *v; |
| abi_ulong v1, v2, v3, v4, v5, v6; |
| if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) |
| return -TARGET_EFAULT; |
| v1 = tswapal(v[0]); |
| v2 = tswapal(v[1]); |
| v3 = tswapal(v[2]); |
| v4 = tswapal(v[3]); |
| v5 = tswapal(v[4]); |
| v6 = tswapal(v[5]); |
| unlock_user(v, arg1, 0); |
| ret = get_errno(target_mmap(v1, v2, v3, |
| target_to_host_bitmask(v4, mmap_flags_tbl), |
| v5, v6)); |
| } |
| #else |
| ret = get_errno(target_mmap(arg1, arg2, arg3, |
| target_to_host_bitmask(arg4, mmap_flags_tbl), |
| arg5, |
| arg6)); |
| #endif |
| return ret; |
| #endif |
| #ifdef TARGET_NR_mmap2 |
| case TARGET_NR_mmap2: |
| #ifndef MMAP_SHIFT |
| #define MMAP_SHIFT 12 |
| #endif |
| ret = target_mmap(arg1, arg2, arg3, |
| target_to_host_bitmask(arg4, mmap_flags_tbl), |
| arg5, arg6 << MMAP_SHIFT); |
| return get_errno(ret); |
| #endif |
| case TARGET_NR_munmap: |
| return get_errno(target_munmap(arg1, arg2)); |
| case TARGET_NR_mprotect: |
| { |
| TaskState *ts = cpu->opaque; |
| /* Special hack to detect libc making the stack executable. */ |
| if ((arg3 & PROT_GROWSDOWN) |
| && arg1 >= ts->info->stack_limit |
| && arg1 <= ts->info->start_stack) { |
| arg3 &= ~PROT_GROWSDOWN; |
| arg2 = arg2 + arg1 - ts->info->stack_limit; |
| arg1 = ts->info->stack_limit; |
| } |
| } |
| return get_errno(target_mprotect(arg1, arg2, arg3)); |
| #ifdef TARGET_NR_mremap |
| case TARGET_NR_mremap: |
| return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); |
| #endif |
| /* ??? msync/mlock/munlock are broken for softmmu. */ |
| #ifdef TARGET_NR_msync |
| case TARGET_NR_msync: |
| return get_errno(msync(g2h(arg1), arg2, arg3)); |
| #endif |
| #ifdef TARGET_NR_mlock |
| case TARGET_NR_mlock: |
| return get_errno(mlock(g2h(arg1), arg2)); |
| #endif |
| #ifdef TARGET_NR_munlock |
| case TARGET_NR_munlock: |
| return get_errno(munlock(g2h(arg1), arg2)); |
| #endif |
| #ifdef TARGET_NR_mlockall |
| case TARGET_NR_mlockall: |
| return get_errno(mlockall(target_to_host_mlockall_arg(arg1))); |
| #endif |
| #ifdef TARGET_NR_munlockall |
| case TARGET_NR_munlockall: |
| return get_errno(munlockall()); |
| #endif |
| #ifdef TARGET_NR_truncate |
| case TARGET_NR_truncate: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(truncate(p, arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_ftruncate |
| case TARGET_NR_ftruncate: |
| return get_errno(ftruncate(arg1, arg2)); |
| #endif |
| case TARGET_NR_fchmod: |
| return get_errno(fchmod(arg1, arg2)); |
| #if defined(TARGET_NR_fchmodat) |
| case TARGET_NR_fchmodat: |
| if (!(p = lock_user_string(arg2))) |
| return -TARGET_EFAULT; |
| ret = get_errno(fchmodat(arg1, p, arg3, 0)); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| case TARGET_NR_getpriority: |
| /* Note that negative values are valid for getpriority, so we must |
| differentiate based on errno settings. */ |
| errno = 0; |
| ret = getpriority(arg1, arg2); |
| if (ret == -1 && errno != 0) { |
| return -host_to_target_errno(errno); |
| } |
| #ifdef TARGET_ALPHA |
| /* Return value is the unbiased priority. Signal no error. */ |
| ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; |
| #else |
| /* Return value is a biased priority to avoid negative numbers. */ |
| ret = 20 - ret; |
| #endif |
| return ret; |
| case TARGET_NR_setpriority: |
| return get_errno(setpriority(arg1, arg2, arg3)); |
| #ifdef TARGET_NR_statfs |
| case TARGET_NR_statfs: |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(statfs(path(p), &stfs)); |
| unlock_user(p, arg1, 0); |
| convert_statfs: |
| if (!is_error(ret)) { |
| struct target_statfs *target_stfs; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) |
| return -TARGET_EFAULT; |
| __put_user(stfs.f_type, &target_stfs->f_type); |
| __put_user(stfs.f_bsize, &target_stfs->f_bsize); |
| __put_user(stfs.f_blocks, &target_stfs->f_blocks); |
| __put_user(stfs.f_bfree, &target_stfs->f_bfree); |
| __put_user(stfs.f_bavail, &target_stfs->f_bavail); |
| __put_user(stfs.f_files, &target_stfs->f_files); |
| __put_user(stfs.f_ffree, &target_stfs->f_ffree); |
| __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); |
| __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); |
| __put_user(stfs.f_namelen, &target_stfs->f_namelen); |
| __put_user(stfs.f_frsize, &target_stfs->f_frsize); |
| #ifdef _STATFS_F_FLAGS |
| __put_user(stfs.f_flags, &target_stfs->f_flags); |
| #else |
| __put_user(0, &target_stfs->f_flags); |
| #endif |
| memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); |
| unlock_user_struct(target_stfs, arg2, 1); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_fstatfs |
| case TARGET_NR_fstatfs: |
| ret = get_errno(fstatfs(arg1, &stfs)); |
| goto convert_statfs; |
| #endif |
| #ifdef TARGET_NR_statfs64 |
| case TARGET_NR_statfs64: |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(statfs(path(p), &stfs)); |
| unlock_user(p, arg1, 0); |
| convert_statfs64: |
| if (!is_error(ret)) { |
| struct target_statfs64 *target_stfs; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) |
| return -TARGET_EFAULT; |
| __put_user(stfs.f_type, &target_stfs->f_type); |
| __put_user(stfs.f_bsize, &target_stfs->f_bsize); |
| __put_user(stfs.f_blocks, &target_stfs->f_blocks); |
| __put_user(stfs.f_bfree, &target_stfs->f_bfree); |
| __put_user(stfs.f_bavail, &target_stfs->f_bavail); |
| __put_user(stfs.f_files, &target_stfs->f_files); |
| __put_user(stfs.f_ffree, &target_stfs->f_ffree); |
| __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); |
| __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); |
| __put_user(stfs.f_namelen, &target_stfs->f_namelen); |
| __put_user(stfs.f_frsize, &target_stfs->f_frsize); |
| memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); |
| unlock_user_struct(target_stfs, arg3, 1); |
| } |
| return ret; |
| case TARGET_NR_fstatfs64: |
| ret = get_errno(fstatfs(arg1, &stfs)); |
| goto convert_statfs64; |
| #endif |
| #ifdef TARGET_NR_socketcall |
| case TARGET_NR_socketcall: |
| return do_socketcall(arg1, arg2); |
| #endif |
| #ifdef TARGET_NR_accept |
| case TARGET_NR_accept: |
| return do_accept4(arg1, arg2, arg3, 0); |
| #endif |
| #ifdef TARGET_NR_accept4 |
| case TARGET_NR_accept4: |
| return do_accept4(arg1, arg2, arg3, arg4); |
| #endif |
| #ifdef TARGET_NR_bind |
| case TARGET_NR_bind: |
| return do_bind(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_connect |
| case TARGET_NR_connect: |
| return do_connect(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_getpeername |
| case TARGET_NR_getpeername: |
| return do_getpeername(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_getsockname |
| case TARGET_NR_getsockname: |
| return do_getsockname(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_getsockopt |
| case TARGET_NR_getsockopt: |
| return do_getsockopt(arg1, arg2, arg3, arg4, arg5); |
| #endif |
| #ifdef TARGET_NR_listen |
| case TARGET_NR_listen: |
| return get_errno(listen(arg1, arg2)); |
| #endif |
| #ifdef TARGET_NR_recv |
| case TARGET_NR_recv: |
| return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); |
| #endif |
| #ifdef TARGET_NR_recvfrom |
| case TARGET_NR_recvfrom: |
| return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); |
| #endif |
| #ifdef TARGET_NR_recvmsg |
| case TARGET_NR_recvmsg: |
| return do_sendrecvmsg(arg1, arg2, arg3, 0); |
| #endif |
| #ifdef TARGET_NR_send |
| case TARGET_NR_send: |
| return do_sendto(arg1, arg2, arg3, arg4, 0, 0); |
| #endif |
| #ifdef TARGET_NR_sendmsg |
| case TARGET_NR_sendmsg: |
| return do_sendrecvmsg(arg1, arg2, arg3, 1); |
| #endif |
| #ifdef TARGET_NR_sendmmsg |
| case TARGET_NR_sendmmsg: |
| return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1); |
| #endif |
| #ifdef TARGET_NR_recvmmsg |
| case TARGET_NR_recvmmsg: |
| return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0); |
| #endif |
| #ifdef TARGET_NR_sendto |
| case TARGET_NR_sendto: |
| return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); |
| #endif |
| #ifdef TARGET_NR_shutdown |
| case TARGET_NR_shutdown: |
| return get_errno(shutdown(arg1, arg2)); |
| #endif |
| #if defined(TARGET_NR_getrandom) && defined(__NR_getrandom) |
| case TARGET_NR_getrandom: |
| p = lock_user(VERIFY_WRITE, arg1, arg2, 0); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(getrandom(p, arg2, arg3)); |
| unlock_user(p, arg1, ret); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_socket |
| case TARGET_NR_socket: |
| return do_socket(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_socketpair |
| case TARGET_NR_socketpair: |
| return do_socketpair(arg1, arg2, arg3, arg4); |
| #endif |
| #ifdef TARGET_NR_setsockopt |
| case TARGET_NR_setsockopt: |
| return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); |
| #endif |
| #if defined(TARGET_NR_syslog) |
| case TARGET_NR_syslog: |
| { |
| int len = arg2; |
| |
| switch (arg1) { |
| case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */ |
| case TARGET_SYSLOG_ACTION_OPEN: /* Open log */ |
| case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */ |
| case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */ |
| case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */ |
| case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */ |
| case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */ |
| case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */ |
| return get_errno(sys_syslog((int)arg1, NULL, (int)arg3)); |
| case TARGET_SYSLOG_ACTION_READ: /* Read from log */ |
| case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */ |
| case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */ |
| { |
| if (len < 0) { |
| return -TARGET_EINVAL; |
| } |
| if (len == 0) { |
| return 0; |
| } |
| p = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); |
| unlock_user(p, arg2, arg3); |
| } |
| return ret; |
| default: |
| return -TARGET_EINVAL; |
| } |
| } |
| break; |
| #endif |
| case TARGET_NR_setitimer: |
| { |
| struct itimerval value, ovalue, *pvalue; |
| |
| if (arg2) { |
| pvalue = &value; |
| if (copy_from_user_timeval(&pvalue->it_interval, arg2) |
| || copy_from_user_timeval(&pvalue->it_value, |
| arg2 + sizeof(struct target_timeval))) |
| return -TARGET_EFAULT; |
| } else { |
| pvalue = NULL; |
| } |
| ret = get_errno(setitimer(arg1, pvalue, &ovalue)); |
| if (!is_error(ret) && arg3) { |
| if (copy_to_user_timeval(arg3, |
| &ovalue.it_interval) |
| || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), |
| &ovalue.it_value)) |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| case TARGET_NR_getitimer: |
| { |
| struct itimerval value; |
| |
| ret = get_errno(getitimer(arg1, &value)); |
| if (!is_error(ret) && arg2) { |
| if (copy_to_user_timeval(arg2, |
| &value.it_interval) |
| || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), |
| &value.it_value)) |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #ifdef TARGET_NR_stat |
| case TARGET_NR_stat: |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(stat(path(p), &st)); |
| unlock_user(p, arg1, 0); |
| goto do_stat; |
| #endif |
| #ifdef TARGET_NR_lstat |
| case TARGET_NR_lstat: |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(lstat(path(p), &st)); |
| unlock_user(p, arg1, 0); |
| goto do_stat; |
| #endif |
| #ifdef TARGET_NR_fstat |
| case TARGET_NR_fstat: |
| { |
| ret = get_errno(fstat(arg1, &st)); |
| #if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat) |
| do_stat: |
| #endif |
| if (!is_error(ret)) { |
| struct target_stat *target_st; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) |
| return -TARGET_EFAULT; |
| memset(target_st, 0, sizeof(*target_st)); |
| __put_user(st.st_dev, &target_st->st_dev); |
| __put_user(st.st_ino, &target_st->st_ino); |
| __put_user(st.st_mode, &target_st->st_mode); |
| __put_user(st.st_uid, &target_st->st_uid); |
| __put_user(st.st_gid, &target_st->st_gid); |
| __put_user(st.st_nlink, &target_st->st_nlink); |
| __put_user(st.st_rdev, &target_st->st_rdev); |
| __put_user(st.st_size, &target_st->st_size); |
| __put_user(st.st_blksize, &target_st->st_blksize); |
| __put_user(st.st_blocks, &target_st->st_blocks); |
| __put_user(st.st_atime, &target_st->target_st_atime); |
| __put_user(st.st_mtime, &target_st->target_st_mtime); |
| __put_user(st.st_ctime, &target_st->target_st_ctime); |
| #if (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700) && \ |
| defined(TARGET_STAT_HAVE_NSEC) |
| __put_user(st.st_atim.tv_nsec, |
| &target_st->target_st_atime_nsec); |
| __put_user(st.st_mtim.tv_nsec, |
| &target_st->target_st_mtime_nsec); |
| __put_user(st.st_ctim.tv_nsec, |
| &target_st->target_st_ctime_nsec); |
| #endif |
| unlock_user_struct(target_st, arg2, 1); |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_vhangup: |
| return get_errno(vhangup()); |
| #ifdef TARGET_NR_syscall |
| case TARGET_NR_syscall: |
| return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5, |
| arg6, arg7, arg8, 0); |
| #endif |
| #if defined(TARGET_NR_wait4) |
| case TARGET_NR_wait4: |
| { |
| int status; |
| abi_long status_ptr = arg2; |
| struct rusage rusage, *rusage_ptr; |
| abi_ulong target_rusage = arg4; |
| abi_long rusage_err; |
| if (target_rusage) |
| rusage_ptr = &rusage; |
| else |
| rusage_ptr = NULL; |
| ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr)); |
| if (!is_error(ret)) { |
| if (status_ptr && ret) { |
| status = host_to_target_waitstatus(status); |
| if (put_user_s32(status, status_ptr)) |
| return -TARGET_EFAULT; |
| } |
| if (target_rusage) { |
| rusage_err = host_to_target_rusage(target_rusage, &rusage); |
| if (rusage_err) { |
| ret = rusage_err; |
| } |
| } |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_swapoff |
| case TARGET_NR_swapoff: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(swapoff(p)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| case TARGET_NR_sysinfo: |
| { |
| struct target_sysinfo *target_value; |
| struct sysinfo value; |
| ret = get_errno(sysinfo(&value)); |
| if (!is_error(ret) && arg1) |
| { |
| if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) |
| return -TARGET_EFAULT; |
| __put_user(value.uptime, &target_value->uptime); |
| __put_user(value.loads[0], &target_value->loads[0]); |
| __put_user(value.loads[1], &target_value->loads[1]); |
| __put_user(value.loads[2], &target_value->loads[2]); |
| __put_user(value.totalram, &target_value->totalram); |
| __put_user(value.freeram, &target_value->freeram); |
| __put_user(value.sharedram, &target_value->sharedram); |
| __put_user(value.bufferram, &target_value->bufferram); |
| __put_user(value.totalswap, &target_value->totalswap); |
| __put_user(value.freeswap, &target_value->freeswap); |
| __put_user(value.procs, &target_value->procs); |
| __put_user(value.totalhigh, &target_value->totalhigh); |
| __put_user(value.freehigh, &target_value->freehigh); |
| __put_user(value.mem_unit, &target_value->mem_unit); |
| unlock_user_struct(target_value, arg1, 1); |
| } |
| } |
| return ret; |
| #ifdef TARGET_NR_ipc |
| case TARGET_NR_ipc: |
| return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6); |
| #endif |
| #ifdef TARGET_NR_semget |
| case TARGET_NR_semget: |
| return get_errno(semget(arg1, arg2, arg3)); |
| #endif |
| #ifdef TARGET_NR_semop |
| case TARGET_NR_semop: |
| return do_semop(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_semctl |
| case TARGET_NR_semctl: |
| return do_semctl(arg1, arg2, arg3, arg4); |
| #endif |
| #ifdef TARGET_NR_msgctl |
| case TARGET_NR_msgctl: |
| return do_msgctl(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_msgget |
| case TARGET_NR_msgget: |
| return get_errno(msgget(arg1, arg2)); |
| #endif |
| #ifdef TARGET_NR_msgrcv |
| case TARGET_NR_msgrcv: |
| return do_msgrcv(arg1, arg2, arg3, arg4, arg5); |
| #endif |
| #ifdef TARGET_NR_msgsnd |
| case TARGET_NR_msgsnd: |
| return do_msgsnd(arg1, arg2, arg3, arg4); |
| #endif |
| #ifdef TARGET_NR_shmget |
| case TARGET_NR_shmget: |
| return get_errno(shmget(arg1, arg2, arg3)); |
| #endif |
| #ifdef TARGET_NR_shmctl |
| case TARGET_NR_shmctl: |
| return do_shmctl(arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_shmat |
| case TARGET_NR_shmat: |
| return do_shmat(cpu_env, arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_shmdt |
| case TARGET_NR_shmdt: |
| return do_shmdt(arg1); |
| #endif |
| case TARGET_NR_fsync: |
| return get_errno(fsync(arg1)); |
| case TARGET_NR_clone: |
| /* Linux manages to have three different orderings for its |
| * arguments to clone(); the BACKWARDS and BACKWARDS2 defines |
| * match the kernel's CONFIG_CLONE_* settings. |
| * Microblaze is further special in that it uses a sixth |
| * implicit argument to clone for the TLS pointer. |
| */ |
| #if defined(TARGET_MICROBLAZE) |
| ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5)); |
| #elif defined(TARGET_CLONE_BACKWARDS) |
| ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5)); |
| #elif defined(TARGET_CLONE_BACKWARDS2) |
| ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4)); |
| #else |
| ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4)); |
| #endif |
| return ret; |
| #ifdef __NR_exit_group |
| /* new thread calls */ |
| case TARGET_NR_exit_group: |
| preexit_cleanup(cpu_env, arg1); |
| return get_errno(exit_group(arg1)); |
| #endif |
| case TARGET_NR_setdomainname: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(setdomainname(p, arg2)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| case TARGET_NR_uname: |
| /* no need to transcode because we use the linux syscall */ |
| { |
| struct new_utsname * buf; |
| |
| if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) |
| return -TARGET_EFAULT; |
| ret = get_errno(sys_uname(buf)); |
| if (!is_error(ret)) { |
| /* Overwrite the native machine name with whatever is being |
| emulated. */ |
| g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env), |
| sizeof(buf->machine)); |
| /* Allow the user to override the reported release. */ |
| if (qemu_uname_release && *qemu_uname_release) { |
| g_strlcpy(buf->release, qemu_uname_release, |
| sizeof(buf->release)); |
| } |
| } |
| unlock_user_struct(buf, arg1, 1); |
| } |
| return ret; |
| #ifdef TARGET_I386 |
| case TARGET_NR_modify_ldt: |
| return do_modify_ldt(cpu_env, arg1, arg2, arg3); |
| #if !defined(TARGET_X86_64) |
| case TARGET_NR_vm86: |
| return do_vm86(cpu_env, arg1, arg2); |
| #endif |
| #endif |
| #if defined(TARGET_NR_adjtimex) |
| case TARGET_NR_adjtimex: |
| { |
| struct timex host_buf; |
| |
| if (target_to_host_timex(&host_buf, arg1) != 0) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(adjtimex(&host_buf)); |
| if (!is_error(ret)) { |
| if (host_to_target_timex(arg1, &host_buf) != 0) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME) |
| case TARGET_NR_clock_adjtime: |
| { |
| struct timex htx, *phtx = &htx; |
| |
| if (target_to_host_timex(phtx, arg2) != 0) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(clock_adjtime(arg1, phtx)); |
| if (!is_error(ret) && phtx) { |
| if (host_to_target_timex(arg2, phtx) != 0) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_getpgid: |
| return get_errno(getpgid(arg1)); |
| case TARGET_NR_fchdir: |
| return get_errno(fchdir(arg1)); |
| case TARGET_NR_personality: |
| return get_errno(personality(arg1)); |
| #ifdef TARGET_NR__llseek /* Not on alpha */ |
| case TARGET_NR__llseek: |
| { |
| int64_t res; |
| #if !defined(__NR_llseek) |
| res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5); |
| if (res == -1) { |
| ret = get_errno(res); |
| } else { |
| ret = 0; |
| } |
| #else |
| ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); |
| #endif |
| if ((ret == 0) && put_user_s64(res, arg4)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_getdents |
| case TARGET_NR_getdents: |
| #ifdef EMULATE_GETDENTS_WITH_GETDENTS |
| #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 |
| { |
| struct target_dirent *target_dirp; |
| struct linux_dirent *dirp; |
| abi_long count = arg3; |
| |
| dirp = g_try_malloc(count); |
| if (!dirp) { |
| return -TARGET_ENOMEM; |
| } |
| |
| ret = get_errno(sys_getdents(arg1, dirp, count)); |
| if (!is_error(ret)) { |
| struct linux_dirent *de; |
| struct target_dirent *tde; |
| int len = ret; |
| int reclen, treclen; |
| int count1, tnamelen; |
| |
| count1 = 0; |
| de = dirp; |
| if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) |
| return -TARGET_EFAULT; |
| tde = target_dirp; |
| while (len > 0) { |
| reclen = de->d_reclen; |
| tnamelen = reclen - offsetof(struct linux_dirent, d_name); |
| assert(tnamelen >= 0); |
| treclen = tnamelen + offsetof(struct target_dirent, d_name); |
| assert(count1 + treclen <= count); |
| tde->d_reclen = tswap16(treclen); |
| tde->d_ino = tswapal(de->d_ino); |
| tde->d_off = tswapal(de->d_off); |
| memcpy(tde->d_name, de->d_name, tnamelen); |
| de = (struct linux_dirent *)((char *)de + reclen); |
| len -= reclen; |
| tde = (struct target_dirent *)((char *)tde + treclen); |
| count1 += treclen; |
| } |
| ret = count1; |
| unlock_user(target_dirp, arg2, ret); |
| } |
| g_free(dirp); |
| } |
| #else |
| { |
| struct linux_dirent *dirp; |
| abi_long count = arg3; |
| |
| if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) |
| return -TARGET_EFAULT; |
| ret = get_errno(sys_getdents(arg1, dirp, count)); |
| if (!is_error(ret)) { |
| struct linux_dirent *de; |
| int len = ret; |
| int reclen; |
| de = dirp; |
| while (len > 0) { |
| reclen = de->d_reclen; |
| if (reclen > len) |
| break; |
| de->d_reclen = tswap16(reclen); |
| tswapls(&de->d_ino); |
| tswapls(&de->d_off); |
| de = (struct linux_dirent *)((char *)de + reclen); |
| len -= reclen; |
| } |
| } |
| unlock_user(dirp, arg2, ret); |
| } |
| #endif |
| #else |
| /* Implement getdents in terms of getdents64 */ |
| { |
| struct linux_dirent64 *dirp; |
| abi_long count = arg3; |
| |
| dirp = lock_user(VERIFY_WRITE, arg2, count, 0); |
| if (!dirp) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(sys_getdents64(arg1, dirp, count)); |
| if (!is_error(ret)) { |
| /* Convert the dirent64 structs to target dirent. We do this |
| * in-place, since we can guarantee that a target_dirent is no |
| * larger than a dirent64; however this means we have to be |
| * careful to read everything before writing in the new format. |
| */ |
| struct linux_dirent64 *de; |
| struct target_dirent *tde; |
| int len = ret; |
| int tlen = 0; |
| |
| de = dirp; |
| tde = (struct target_dirent *)dirp; |
| while (len > 0) { |
| int namelen, treclen; |
| int reclen = de->d_reclen; |
| uint64_t ino = de->d_ino; |
| int64_t off = de->d_off; |
| uint8_t type = de->d_type; |
| |
| namelen = strlen(de->d_name); |
| treclen = offsetof(struct target_dirent, d_name) |
| + namelen + 2; |
| treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long)); |
| |
| memmove(tde->d_name, de->d_name, namelen + 1); |
| tde->d_ino = tswapal(ino); |
| tde->d_off = tswapal(off); |
| tde->d_reclen = tswap16(treclen); |
| /* The target_dirent type is in what was formerly a padding |
| * byte at the end of the structure: |
| */ |
| *(((char *)tde) + treclen - 1) = type; |
| |
| de = (struct linux_dirent64 *)((char *)de + reclen); |
| tde = (struct target_dirent *)((char *)tde + treclen); |
| len -= reclen; |
| tlen += treclen; |
| } |
| ret = tlen; |
| } |
| unlock_user(dirp, arg2, ret); |
| } |
| #endif |
| return ret; |
| #endif /* TARGET_NR_getdents */ |
| #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) |
| case TARGET_NR_getdents64: |
| { |
| struct linux_dirent64 *dirp; |
| abi_long count = arg3; |
| if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) |
| return -TARGET_EFAULT; |
| ret = get_errno(sys_getdents64(arg1, dirp, count)); |
| if (!is_error(ret)) { |
| struct linux_dirent64 *de; |
| int len = ret; |
| int reclen; |
| de = dirp; |
| while (len > 0) { |
| reclen = de->d_reclen; |
| if (reclen > len) |
| break; |
| de->d_reclen = tswap16(reclen); |
| tswap64s((uint64_t *)&de->d_ino); |
| tswap64s((uint64_t *)&de->d_off); |
| de = (struct linux_dirent64 *)((char *)de + reclen); |
| len -= reclen; |
| } |
| } |
| unlock_user(dirp, arg2, ret); |
| } |
| return ret; |
| #endif /* TARGET_NR_getdents64 */ |
| #if defined(TARGET_NR__newselect) |
| case TARGET_NR__newselect: |
| return do_select(arg1, arg2, arg3, arg4, arg5); |
| #endif |
| #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) |
| # ifdef TARGET_NR_poll |
| case TARGET_NR_poll: |
| # endif |
| # ifdef TARGET_NR_ppoll |
| case TARGET_NR_ppoll: |
| # endif |
| { |
| struct target_pollfd *target_pfd; |
| unsigned int nfds = arg2; |
| struct pollfd *pfd; |
| unsigned int i; |
| |
| pfd = NULL; |
| target_pfd = NULL; |
| if (nfds) { |
| if (nfds > (INT_MAX / sizeof(struct target_pollfd))) { |
| return -TARGET_EINVAL; |
| } |
| |
| target_pfd = lock_user(VERIFY_WRITE, arg1, |
| sizeof(struct target_pollfd) * nfds, 1); |
| if (!target_pfd) { |
| return -TARGET_EFAULT; |
| } |
| |
| pfd = alloca(sizeof(struct pollfd) * nfds); |
| for (i = 0; i < nfds; i++) { |
| pfd[i].fd = tswap32(target_pfd[i].fd); |
| pfd[i].events = tswap16(target_pfd[i].events); |
| } |
| } |
| |
| switch (num) { |
| # ifdef TARGET_NR_ppoll |
| case TARGET_NR_ppoll: |
| { |
| struct timespec _timeout_ts, *timeout_ts = &_timeout_ts; |
| target_sigset_t *target_set; |
| sigset_t _set, *set = &_set; |
| |
| if (arg3) { |
| if (target_to_host_timespec(timeout_ts, arg3)) { |
| unlock_user(target_pfd, arg1, 0); |
| return -TARGET_EFAULT; |
| } |
| } else { |
| timeout_ts = NULL; |
| } |
| |
| if (arg4) { |
| if (arg5 != sizeof(target_sigset_t)) { |
| unlock_user(target_pfd, arg1, 0); |
| return -TARGET_EINVAL; |
| } |
| |
| target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1); |
| if (!target_set) { |
| unlock_user(target_pfd, arg1, 0); |
| return -TARGET_EFAULT; |
| } |
| target_to_host_sigset(set, target_set); |
| } else { |
| set = NULL; |
| } |
| |
| ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts, |
| set, SIGSET_T_SIZE)); |
| |
| if (!is_error(ret) && arg3) { |
| host_to_target_timespec(arg3, timeout_ts); |
| } |
| if (arg4) { |
| unlock_user(target_set, arg4, 0); |
| } |
| break; |
| } |
| # endif |
| # ifdef TARGET_NR_poll |
| case TARGET_NR_poll: |
| { |
| struct timespec ts, *pts; |
| |
| if (arg3 >= 0) { |
| /* Convert ms to secs, ns */ |
| ts.tv_sec = arg3 / 1000; |
| ts.tv_nsec = (arg3 % 1000) * 1000000LL; |
| pts = &ts; |
| } else { |
| /* -ve poll() timeout means "infinite" */ |
| pts = NULL; |
| } |
| ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0)); |
| break; |
| } |
| # endif |
| default: |
| g_assert_not_reached(); |
| } |
| |
| if (!is_error(ret)) { |
| for(i = 0; i < nfds; i++) { |
| target_pfd[i].revents = tswap16(pfd[i].revents); |
| } |
| } |
| unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds); |
| } |
| return ret; |
| #endif |
| case TARGET_NR_flock: |
| /* NOTE: the flock constant seems to be the same for every |
| Linux platform */ |
| return get_errno(safe_flock(arg1, arg2)); |
| case TARGET_NR_readv: |
| { |
| struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0); |
| if (vec != NULL) { |
| ret = get_errno(safe_readv(arg1, vec, arg3)); |
| unlock_iovec(vec, arg2, arg3, 1); |
| } else { |
| ret = -host_to_target_errno(errno); |
| } |
| } |
| return ret; |
| case TARGET_NR_writev: |
| { |
| struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); |
| if (vec != NULL) { |
| ret = get_errno(safe_writev(arg1, vec, arg3)); |
| unlock_iovec(vec, arg2, arg3, 0); |
| } else { |
| ret = -host_to_target_errno(errno); |
| } |
| } |
| return ret; |
| #if defined(TARGET_NR_preadv) |
| case TARGET_NR_preadv: |
| { |
| struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0); |
| if (vec != NULL) { |
| unsigned long low, high; |
| |
| target_to_host_low_high(arg4, arg5, &low, &high); |
| ret = get_errno(safe_preadv(arg1, vec, arg3, low, high)); |
| unlock_iovec(vec, arg2, arg3, 1); |
| } else { |
| ret = -host_to_target_errno(errno); |
| } |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_pwritev) |
| case TARGET_NR_pwritev: |
| { |
| struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); |
| if (vec != NULL) { |
| unsigned long low, high; |
| |
| target_to_host_low_high(arg4, arg5, &low, &high); |
| ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high)); |
| unlock_iovec(vec, arg2, arg3, 0); |
| } else { |
| ret = -host_to_target_errno(errno); |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_getsid: |
| return get_errno(getsid(arg1)); |
| #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ |
| case TARGET_NR_fdatasync: |
| return get_errno(fdatasync(arg1)); |
| #endif |
| #ifdef TARGET_NR__sysctl |
| case TARGET_NR__sysctl: |
| /* We don't implement this, but ENOTDIR is always a safe |
| return value. */ |
| return -TARGET_ENOTDIR; |
| #endif |
| case TARGET_NR_sched_getaffinity: |
| { |
| unsigned int mask_size; |
| unsigned long *mask; |
| |
| /* |
| * sched_getaffinity needs multiples of ulong, so need to take |
| * care of mismatches between target ulong and host ulong sizes. |
| */ |
| if (arg2 & (sizeof(abi_ulong) - 1)) { |
| return -TARGET_EINVAL; |
| } |
| mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); |
| |
| mask = alloca(mask_size); |
| memset(mask, 0, mask_size); |
| ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask)); |
| |
| if (!is_error(ret)) { |
| if (ret > arg2) { |
| /* More data returned than the caller's buffer will fit. |
| * This only happens if sizeof(abi_long) < sizeof(long) |
| * and the caller passed us a buffer holding an odd number |
| * of abi_longs. If the host kernel is actually using the |
| * extra 4 bytes then fail EINVAL; otherwise we can just |
| * ignore them and only copy the interesting part. |
| */ |
| int numcpus = sysconf(_SC_NPROCESSORS_CONF); |
| if (numcpus > arg2 * 8) { |
| return -TARGET_EINVAL; |
| } |
| ret = arg2; |
| } |
| |
| if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| return ret; |
| case TARGET_NR_sched_setaffinity: |
| { |
| unsigned int mask_size; |
| unsigned long *mask; |
| |
| /* |
| * sched_setaffinity needs multiples of ulong, so need to take |
| * care of mismatches between target ulong and host ulong sizes. |
| */ |
| if (arg2 & (sizeof(abi_ulong) - 1)) { |
| return -TARGET_EINVAL; |
| } |
| mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); |
| mask = alloca(mask_size); |
| |
| ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2); |
| if (ret) { |
| return ret; |
| } |
| |
| return get_errno(sys_sched_setaffinity(arg1, mask_size, mask)); |
| } |
| case TARGET_NR_getcpu: |
| { |
| unsigned cpu, node; |
| ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL, |
| arg2 ? &node : NULL, |
| NULL)); |
| if (is_error(ret)) { |
| return ret; |
| } |
| if (arg1 && put_user_u32(cpu, arg1)) { |
| return -TARGET_EFAULT; |
| } |
| if (arg2 && put_user_u32(node, arg2)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| case TARGET_NR_sched_setparam: |
| { |
| struct sched_param *target_schp; |
| struct sched_param schp; |
| |
| if (arg2 == 0) { |
| return -TARGET_EINVAL; |
| } |
| if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) |
| return -TARGET_EFAULT; |
| schp.sched_priority = tswap32(target_schp->sched_priority); |
| unlock_user_struct(target_schp, arg2, 0); |
| return get_errno(sched_setparam(arg1, &schp)); |
| } |
| case TARGET_NR_sched_getparam: |
| { |
| struct sched_param *target_schp; |
| struct sched_param schp; |
| |
| if (arg2 == 0) { |
| return -TARGET_EINVAL; |
| } |
| ret = get_errno(sched_getparam(arg1, &schp)); |
| if (!is_error(ret)) { |
| if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) |
| return -TARGET_EFAULT; |
| target_schp->sched_priority = tswap32(schp.sched_priority); |
| unlock_user_struct(target_schp, arg2, 1); |
| } |
| } |
| return ret; |
| case TARGET_NR_sched_setscheduler: |
| { |
| struct sched_param *target_schp; |
| struct sched_param schp; |
| if (arg3 == 0) { |
| return -TARGET_EINVAL; |
| } |
| if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) |
| return -TARGET_EFAULT; |
| schp.sched_priority = tswap32(target_schp->sched_priority); |
| unlock_user_struct(target_schp, arg3, 0); |
| return get_errno(sched_setscheduler(arg1, arg2, &schp)); |
| } |
| case TARGET_NR_sched_getscheduler: |
| return get_errno(sched_getscheduler(arg1)); |
| case TARGET_NR_sched_yield: |
| return get_errno(sched_yield()); |
| case TARGET_NR_sched_get_priority_max: |
| return get_errno(sched_get_priority_max(arg1)); |
| case TARGET_NR_sched_get_priority_min: |
| return get_errno(sched_get_priority_min(arg1)); |
| #ifdef TARGET_NR_sched_rr_get_interval |
| case TARGET_NR_sched_rr_get_interval: |
| { |
| struct timespec ts; |
| ret = get_errno(sched_rr_get_interval(arg1, &ts)); |
| if (!is_error(ret)) { |
| ret = host_to_target_timespec(arg2, &ts); |
| } |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_nanosleep) |
| case TARGET_NR_nanosleep: |
| { |
| struct timespec req, rem; |
| target_to_host_timespec(&req, arg1); |
| ret = get_errno(safe_nanosleep(&req, &rem)); |
| if (is_error(ret) && arg2) { |
| host_to_target_timespec(arg2, &rem); |
| } |
| } |
| return ret; |
| #endif |
| case TARGET_NR_prctl: |
| switch (arg1) { |
| case PR_GET_PDEATHSIG: |
| { |
| int deathsig; |
| ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); |
| if (!is_error(ret) && arg2 |
| && put_user_ual(deathsig, arg2)) { |
| return -TARGET_EFAULT; |
| } |
| return ret; |
| } |
| #ifdef PR_GET_NAME |
| case PR_GET_NAME: |
| { |
| void *name = lock_user(VERIFY_WRITE, arg2, 16, 1); |
| if (!name) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(prctl(arg1, (unsigned long)name, |
| arg3, arg4, arg5)); |
| unlock_user(name, arg2, 16); |
| return ret; |
| } |
| case PR_SET_NAME: |
| { |
| void *name = lock_user(VERIFY_READ, arg2, 16, 1); |
| if (!name) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(prctl(arg1, (unsigned long)name, |
| arg3, arg4, arg5)); |
| unlock_user(name, arg2, 0); |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_MIPS |
| case TARGET_PR_GET_FP_MODE: |
| { |
| CPUMIPSState *env = ((CPUMIPSState *)cpu_env); |
| ret = 0; |
| if (env->CP0_Status & (1 << CP0St_FR)) { |
| ret |= TARGET_PR_FP_MODE_FR; |
| } |
| if (env->CP0_Config5 & (1 << CP0C5_FRE)) { |
| ret |= TARGET_PR_FP_MODE_FRE; |
| } |
| return ret; |
| } |
| case TARGET_PR_SET_FP_MODE: |
| { |
| CPUMIPSState *env = ((CPUMIPSState *)cpu_env); |
| bool old_fr = env->CP0_Status & (1 << CP0St_FR); |
| bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE); |
| bool new_fr = arg2 & TARGET_PR_FP_MODE_FR; |
| bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE; |
| |
| const unsigned int known_bits = TARGET_PR_FP_MODE_FR | |
| TARGET_PR_FP_MODE_FRE; |
| |
| /* If nothing to change, return right away, successfully. */ |
| if (old_fr == new_fr && old_fre == new_fre) { |
| return 0; |
| } |
| /* Check the value is valid */ |
| if (arg2 & ~known_bits) { |
| return -TARGET_EOPNOTSUPP; |
| } |
| /* Setting FRE without FR is not supported. */ |
| if (new_fre && !new_fr) { |
| return -TARGET_EOPNOTSUPP; |
| } |
| if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) { |
| /* FR1 is not supported */ |
| return -TARGET_EOPNOTSUPP; |
| } |
| if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64)) |
| && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) { |
| /* cannot set FR=0 */ |
| return -TARGET_EOPNOTSUPP; |
| } |
| if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) { |
| /* Cannot set FRE=1 */ |
| return -TARGET_EOPNOTSUPP; |
| } |
| |
| int i; |
| fpr_t *fpr = env->active_fpu.fpr; |
| for (i = 0; i < 32 ; i += 2) { |
| if (!old_fr && new_fr) { |
| fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX]; |
| } else if (old_fr && !new_fr) { |
| fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX]; |
| } |
| } |
| |
| if (new_fr) { |
| env->CP0_Status |= (1 << CP0St_FR); |
| env->hflags |= MIPS_HFLAG_F64; |
| } else { |
| env->CP0_Status &= ~(1 << CP0St_FR); |
| env->hflags &= ~MIPS_HFLAG_F64; |
| } |
| if (new_fre) { |
| env->CP0_Config5 |= (1 << CP0C5_FRE); |
| if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) { |
| env->hflags |= MIPS_HFLAG_FRE; |
| } |
| } else { |
| env->CP0_Config5 &= ~(1 << CP0C5_FRE); |
| env->hflags &= ~MIPS_HFLAG_FRE; |
| } |
| |
| return 0; |
| } |
| #endif /* MIPS */ |
| #ifdef TARGET_AARCH64 |
| case TARGET_PR_SVE_SET_VL: |
| /* |
| * We cannot support either PR_SVE_SET_VL_ONEXEC or |
| * PR_SVE_VL_INHERIT. Note the kernel definition |
| * of sve_vl_valid allows for VQ=512, i.e. VL=8192, |
| * even though the current architectural maximum is VQ=16. |
| */ |
| ret = -TARGET_EINVAL; |
| if (cpu_isar_feature(aa64_sve, env_archcpu(cpu_env)) |
| && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) { |
| CPUARMState *env = cpu_env; |
| ARMCPU *cpu = env_archcpu(env); |
| uint32_t vq, old_vq; |
| |
| old_vq = (env->vfp.zcr_el[1] & 0xf) + 1; |
| vq = MAX(arg2 / 16, 1); |
| vq = MIN(vq, cpu->sve_max_vq); |
| |
| if (vq < old_vq) { |
| aarch64_sve_narrow_vq(env, vq); |
| } |
| env->vfp.zcr_el[1] = vq - 1; |
| arm_rebuild_hflags(env); |
| ret = vq * 16; |
| } |
| return ret; |
| case TARGET_PR_SVE_GET_VL: |
| ret = -TARGET_EINVAL; |
| { |
| ARMCPU *cpu = env_archcpu(cpu_env); |
| if (cpu_isar_feature(aa64_sve, cpu)) { |
| ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16; |
| } |
| } |
| return ret; |
| case TARGET_PR_PAC_RESET_KEYS: |
| { |
| CPUARMState *env = cpu_env; |
| ARMCPU *cpu = env_archcpu(env); |
| |
| if (arg3 || arg4 || arg5) { |
| return -TARGET_EINVAL; |
| } |
| if (cpu_isar_feature(aa64_pauth, cpu)) { |
| int all = (TARGET_PR_PAC_APIAKEY | TARGET_PR_PAC_APIBKEY | |
| TARGET_PR_PAC_APDAKEY | TARGET_PR_PAC_APDBKEY | |
| TARGET_PR_PAC_APGAKEY); |
| int ret = 0; |
| Error *err = NULL; |
| |
| if (arg2 == 0) { |
| arg2 = all; |
| } else if (arg2 & ~all) { |
| return -TARGET_EINVAL; |
| } |
| if (arg2 & TARGET_PR_PAC_APIAKEY) { |
| ret |= qemu_guest_getrandom(&env->keys.apia, |
| sizeof(ARMPACKey), &err); |
| } |
| if (arg2 & TARGET_PR_PAC_APIBKEY) { |
| ret |= qemu_guest_getrandom(&env->keys.apib, |
| sizeof(ARMPACKey), &err); |
| } |
| if (arg2 & TARGET_PR_PAC_APDAKEY) { |
| ret |= qemu_guest_getrandom(&env->keys.apda, |
| sizeof(ARMPACKey), &err); |
| } |
| if (arg2 & TARGET_PR_PAC_APDBKEY) { |
| ret |= qemu_guest_getrandom(&env->keys.apdb, |
| sizeof(ARMPACKey), &err); |
| } |
| if (arg2 & TARGET_PR_PAC_APGAKEY) { |
| ret |= qemu_guest_getrandom(&env->keys.apga, |
| sizeof(ARMPACKey), &err); |
| } |
| if (ret != 0) { |
| /* |
| * Some unknown failure in the crypto. The best |
| * we can do is log it and fail the syscall. |
| * The real syscall cannot fail this way. |
| */ |
| qemu_log_mask(LOG_UNIMP, |
| "PR_PAC_RESET_KEYS: Crypto failure: %s", |
| error_get_pretty(err)); |
| error_free(err); |
| return -TARGET_EIO; |
| } |
| return 0; |
| } |
| } |
| return -TARGET_EINVAL; |
| #endif /* AARCH64 */ |
| case PR_GET_SECCOMP: |
| case PR_SET_SECCOMP: |
| /* Disable seccomp to prevent the target disabling syscalls we |
| * need. */ |
| return -TARGET_EINVAL; |
| default: |
| /* Most prctl options have no pointer arguments */ |
| return get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); |
| } |
| break; |
| #ifdef TARGET_NR_arch_prctl |
| case TARGET_NR_arch_prctl: |
| return do_arch_prctl(cpu_env, arg1, arg2); |
| #endif |
| #ifdef TARGET_NR_pread64 |
| case TARGET_NR_pread64: |
| if (regpairs_aligned(cpu_env, num)) { |
| arg4 = arg5; |
| arg5 = arg6; |
| } |
| if (arg2 == 0 && arg3 == 0) { |
| /* Special-case NULL buffer and zero length, which should succeed */ |
| p = 0; |
| } else { |
| p = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| } |
| ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); |
| unlock_user(p, arg2, ret); |
| return ret; |
| case TARGET_NR_pwrite64: |
| if (regpairs_aligned(cpu_env, num)) { |
| arg4 = arg5; |
| arg5 = arg6; |
| } |
| if (arg2 == 0 && arg3 == 0) { |
| /* Special-case NULL buffer and zero length, which should succeed */ |
| p = 0; |
| } else { |
| p = lock_user(VERIFY_READ, arg2, arg3, 1); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| } |
| ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| case TARGET_NR_getcwd: |
| if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) |
| return -TARGET_EFAULT; |
| ret = get_errno(sys_getcwd1(p, arg2)); |
| unlock_user(p, arg1, ret); |
| return ret; |
| case TARGET_NR_capget: |
| case TARGET_NR_capset: |
| { |
| struct target_user_cap_header *target_header; |
| struct target_user_cap_data *target_data = NULL; |
| struct __user_cap_header_struct header; |
| struct __user_cap_data_struct data[2]; |
| struct __user_cap_data_struct *dataptr = NULL; |
| int i, target_datalen; |
| int data_items = 1; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) { |
| return -TARGET_EFAULT; |
| } |
| header.version = tswap32(target_header->version); |
| header.pid = tswap32(target_header->pid); |
| |
| if (header.version != _LINUX_CAPABILITY_VERSION) { |
| /* Version 2 and up takes pointer to two user_data structs */ |
| data_items = 2; |
| } |
| |
| target_datalen = sizeof(*target_data) * data_items; |
| |
| if (arg2) { |
| if (num == TARGET_NR_capget) { |
| target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0); |
| } else { |
| target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1); |
| } |
| if (!target_data) { |
| unlock_user_struct(target_header, arg1, 0); |
| return -TARGET_EFAULT; |
| } |
| |
| if (num == TARGET_NR_capset) { |
| for (i = 0; i < data_items; i++) { |
| data[i].effective = tswap32(target_data[i].effective); |
| data[i].permitted = tswap32(target_data[i].permitted); |
| data[i].inheritable = tswap32(target_data[i].inheritable); |
| } |
| } |
| |
| dataptr = data; |
| } |
| |
| if (num == TARGET_NR_capget) { |
| ret = get_errno(capget(&header, dataptr)); |
| } else { |
| ret = get_errno(capset(&header, dataptr)); |
| } |
| |
| /* The kernel always updates version for both capget and capset */ |
| target_header->version = tswap32(header.version); |
| unlock_user_struct(target_header, arg1, 1); |
| |
| if (arg2) { |
| if (num == TARGET_NR_capget) { |
| for (i = 0; i < data_items; i++) { |
| target_data[i].effective = tswap32(data[i].effective); |
| target_data[i].permitted = tswap32(data[i].permitted); |
| target_data[i].inheritable = tswap32(data[i].inheritable); |
| } |
| unlock_user(target_data, arg2, target_datalen); |
| } else { |
| unlock_user(target_data, arg2, 0); |
| } |
| } |
| return ret; |
| } |
| case TARGET_NR_sigaltstack: |
| return do_sigaltstack(arg1, arg2, |
| get_sp_from_cpustate((CPUArchState *)cpu_env)); |
| |
| #ifdef CONFIG_SENDFILE |
| #ifdef TARGET_NR_sendfile |
| case TARGET_NR_sendfile: |
| { |
| off_t *offp = NULL; |
| off_t off; |
| if (arg3) { |
| ret = get_user_sal(off, arg3); |
| if (is_error(ret)) { |
| return ret; |
| } |
| offp = &off; |
| } |
| ret = get_errno(sendfile(arg1, arg2, offp, arg4)); |
| if (!is_error(ret) && arg3) { |
| abi_long ret2 = put_user_sal(off, arg3); |
| if (is_error(ret2)) { |
| ret = ret2; |
| } |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_sendfile64 |
| case TARGET_NR_sendfile64: |
| { |
| off_t *offp = NULL; |
| off_t off; |
| if (arg3) { |
| ret = get_user_s64(off, arg3); |
| if (is_error(ret)) { |
| return ret; |
| } |
| offp = &off; |
| } |
| ret = get_errno(sendfile(arg1, arg2, offp, arg4)); |
| if (!is_error(ret) && arg3) { |
| abi_long ret2 = put_user_s64(off, arg3); |
| if (is_error(ret2)) { |
| ret = ret2; |
| } |
| } |
| return ret; |
| } |
| #endif |
| #endif |
| #ifdef TARGET_NR_vfork |
| case TARGET_NR_vfork: |
| return get_errno(do_fork(cpu_env, |
| CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD, |
| 0, 0, 0, 0)); |
| #endif |
| #ifdef TARGET_NR_ugetrlimit |
| case TARGET_NR_ugetrlimit: |
| { |
| struct rlimit rlim; |
| int resource = target_to_host_resource(arg1); |
| ret = get_errno(getrlimit(resource, &rlim)); |
| if (!is_error(ret)) { |
| struct target_rlimit *target_rlim; |
| if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) |
| return -TARGET_EFAULT; |
| target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); |
| target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); |
| unlock_user_struct(target_rlim, arg2, 1); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_truncate64 |
| case TARGET_NR_truncate64: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_ftruncate64 |
| case TARGET_NR_ftruncate64: |
| return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); |
| #endif |
| #ifdef TARGET_NR_stat64 |
| case TARGET_NR_stat64: |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(stat(path(p), &st)); |
| unlock_user(p, arg1, 0); |
| if (!is_error(ret)) |
| ret = host_to_target_stat64(cpu_env, arg2, &st); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_lstat64 |
| case TARGET_NR_lstat64: |
| if (!(p = lock_user_string(arg1))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(lstat(path(p), &st)); |
| unlock_user(p, arg1, 0); |
| if (!is_error(ret)) |
| ret = host_to_target_stat64(cpu_env, arg2, &st); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_fstat64 |
| case TARGET_NR_fstat64: |
| ret = get_errno(fstat(arg1, &st)); |
| if (!is_error(ret)) |
| ret = host_to_target_stat64(cpu_env, arg2, &st); |
| return ret; |
| #endif |
| #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) |
| #ifdef TARGET_NR_fstatat64 |
| case TARGET_NR_fstatat64: |
| #endif |
| #ifdef TARGET_NR_newfstatat |
| case TARGET_NR_newfstatat: |
| #endif |
| if (!(p = lock_user_string(arg2))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(fstatat(arg1, path(p), &st, arg4)); |
| unlock_user(p, arg2, 0); |
| if (!is_error(ret)) |
| ret = host_to_target_stat64(cpu_env, arg3, &st); |
| return ret; |
| #endif |
| #if defined(TARGET_NR_statx) |
| case TARGET_NR_statx: |
| { |
| struct target_statx *target_stx; |
| int dirfd = arg1; |
| int flags = arg3; |
| |
| p = lock_user_string(arg2); |
| if (p == NULL) { |
| return -TARGET_EFAULT; |
| } |
| #if defined(__NR_statx) |
| { |
| /* |
| * It is assumed that struct statx is architecture independent. |
| */ |
| struct target_statx host_stx; |
| int mask = arg4; |
| |
| ret = get_errno(sys_statx(dirfd, p, flags, mask, &host_stx)); |
| if (!is_error(ret)) { |
| if (host_to_target_statx(&host_stx, arg5) != 0) { |
| unlock_user(p, arg2, 0); |
| return -TARGET_EFAULT; |
| } |
| } |
| |
| if (ret != -TARGET_ENOSYS) { |
| unlock_user(p, arg2, 0); |
| return ret; |
| } |
| } |
| #endif |
| ret = get_errno(fstatat(dirfd, path(p), &st, flags)); |
| unlock_user(p, arg2, 0); |
| |
| if (!is_error(ret)) { |
| if (!lock_user_struct(VERIFY_WRITE, target_stx, arg5, 0)) { |
| return -TARGET_EFAULT; |
| } |
| memset(target_stx, 0, sizeof(*target_stx)); |
| __put_user(major(st.st_dev), &target_stx->stx_dev_major); |
| __put_user(minor(st.st_dev), &target_stx->stx_dev_minor); |
| __put_user(st.st_ino, &target_stx->stx_ino); |
| __put_user(st.st_mode, &target_stx->stx_mode); |
| __put_user(st.st_uid, &target_stx->stx_uid); |
| __put_user(st.st_gid, &target_stx->stx_gid); |
| __put_user(st.st_nlink, &target_stx->stx_nlink); |
| __put_user(major(st.st_rdev), &target_stx->stx_rdev_major); |
| __put_user(minor(st.st_rdev), &target_stx->stx_rdev_minor); |
| __put_user(st.st_size, &target_stx->stx_size); |
| __put_user(st.st_blksize, &target_stx->stx_blksize); |
| __put_user(st.st_blocks, &target_stx->stx_blocks); |
| __put_user(st.st_atime, &target_stx->stx_atime.tv_sec); |
| __put_user(st.st_mtime, &target_stx->stx_mtime.tv_sec); |
| __put_user(st.st_ctime, &target_stx->stx_ctime.tv_sec); |
| unlock_user_struct(target_stx, arg5, 1); |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_lchown |
| case TARGET_NR_lchown: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_getuid |
| case TARGET_NR_getuid: |
| return get_errno(high2lowuid(getuid())); |
| #endif |
| #ifdef TARGET_NR_getgid |
| case TARGET_NR_getgid: |
| return get_errno(high2lowgid(getgid())); |
| #endif |
| #ifdef TARGET_NR_geteuid |
| case TARGET_NR_geteuid: |
| return get_errno(high2lowuid(geteuid())); |
| #endif |
| #ifdef TARGET_NR_getegid |
| case TARGET_NR_getegid: |
| return get_errno(high2lowgid(getegid())); |
| #endif |
| case TARGET_NR_setreuid: |
| return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); |
| case TARGET_NR_setregid: |
| return get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); |
| case TARGET_NR_getgroups: |
| { |
| int gidsetsize = arg1; |
| target_id *target_grouplist; |
| gid_t *grouplist; |
| int i; |
| |
| grouplist = alloca(gidsetsize * sizeof(gid_t)); |
| ret = get_errno(getgroups(gidsetsize, grouplist)); |
| if (gidsetsize == 0) |
| return ret; |
| if (!is_error(ret)) { |
| target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0); |
| if (!target_grouplist) |
| return -TARGET_EFAULT; |
| for(i = 0;i < ret; i++) |
| target_grouplist[i] = tswapid(high2lowgid(grouplist[i])); |
| unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id)); |
| } |
| } |
| return ret; |
| case TARGET_NR_setgroups: |
| { |
| int gidsetsize = arg1; |
| target_id *target_grouplist; |
| gid_t *grouplist = NULL; |
| int i; |
| if (gidsetsize) { |
| grouplist = alloca(gidsetsize * sizeof(gid_t)); |
| target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1); |
| if (!target_grouplist) { |
| return -TARGET_EFAULT; |
| } |
| for (i = 0; i < gidsetsize; i++) { |
| grouplist[i] = low2highgid(tswapid(target_grouplist[i])); |
| } |
| unlock_user(target_grouplist, arg2, 0); |
| } |
| return get_errno(setgroups(gidsetsize, grouplist)); |
| } |
| case TARGET_NR_fchown: |
| return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); |
| #if defined(TARGET_NR_fchownat) |
| case TARGET_NR_fchownat: |
| if (!(p = lock_user_string(arg2))) |
| return -TARGET_EFAULT; |
| ret = get_errno(fchownat(arg1, p, low2highuid(arg3), |
| low2highgid(arg4), arg5)); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_setresuid |
| case TARGET_NR_setresuid: |
| return get_errno(sys_setresuid(low2highuid(arg1), |
| low2highuid(arg2), |
| low2highuid(arg3))); |
| #endif |
| #ifdef TARGET_NR_getresuid |
| case TARGET_NR_getresuid: |
| { |
| uid_t ruid, euid, suid; |
| ret = get_errno(getresuid(&ruid, &euid, &suid)); |
| if (!is_error(ret)) { |
| if (put_user_id(high2lowuid(ruid), arg1) |
| || put_user_id(high2lowuid(euid), arg2) |
| || put_user_id(high2lowuid(suid), arg3)) |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_getresgid |
| case TARGET_NR_setresgid: |
| return get_errno(sys_setresgid(low2highgid(arg1), |
| low2highgid(arg2), |
| low2highgid(arg3))); |
| #endif |
| #ifdef TARGET_NR_getresgid |
| case TARGET_NR_getresgid: |
| { |
| gid_t rgid, egid, sgid; |
| ret = get_errno(getresgid(&rgid, &egid, &sgid)); |
| if (!is_error(ret)) { |
| if (put_user_id(high2lowgid(rgid), arg1) |
| || put_user_id(high2lowgid(egid), arg2) |
| || put_user_id(high2lowgid(sgid), arg3)) |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_chown |
| case TARGET_NR_chown: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| case TARGET_NR_setuid: |
| return get_errno(sys_setuid(low2highuid(arg1))); |
| case TARGET_NR_setgid: |
| return get_errno(sys_setgid(low2highgid(arg1))); |
| case TARGET_NR_setfsuid: |
| return get_errno(setfsuid(arg1)); |
| case TARGET_NR_setfsgid: |
| return get_errno(setfsgid(arg1)); |
| |
| #ifdef TARGET_NR_lchown32 |
| case TARGET_NR_lchown32: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(lchown(p, arg2, arg3)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_getuid32 |
| case TARGET_NR_getuid32: |
| return get_errno(getuid()); |
| #endif |
| |
| #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA) |
| /* Alpha specific */ |
| case TARGET_NR_getxuid: |
| { |
| uid_t euid; |
| euid=geteuid(); |
| ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; |
| } |
| return get_errno(getuid()); |
| #endif |
| #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA) |
| /* Alpha specific */ |
| case TARGET_NR_getxgid: |
| { |
| uid_t egid; |
| egid=getegid(); |
| ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; |
| } |
| return get_errno(getgid()); |
| #endif |
| #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA) |
| /* Alpha specific */ |
| case TARGET_NR_osf_getsysinfo: |
| ret = -TARGET_EOPNOTSUPP; |
| switch (arg1) { |
| case TARGET_GSI_IEEE_FP_CONTROL: |
| { |
| uint64_t fpcr = cpu_alpha_load_fpcr(cpu_env); |
| uint64_t swcr = ((CPUAlphaState *)cpu_env)->swcr; |
| |
| swcr &= ~SWCR_STATUS_MASK; |
| swcr |= (fpcr >> 35) & SWCR_STATUS_MASK; |
| |
| if (put_user_u64 (swcr, arg2)) |
| return -TARGET_EFAULT; |
| ret = 0; |
| } |
| break; |
| |
| /* case GSI_IEEE_STATE_AT_SIGNAL: |
| -- Not implemented in linux kernel. |
| case GSI_UACPROC: |
| -- Retrieves current unaligned access state; not much used. |
| case GSI_PROC_TYPE: |
| -- Retrieves implver information; surely not used. |
| case GSI_GET_HWRPB: |
| -- Grabs a copy of the HWRPB; surely not used. |
| */ |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA) |
| /* Alpha specific */ |
| case TARGET_NR_osf_setsysinfo: |
| ret = -TARGET_EOPNOTSUPP; |
| switch (arg1) { |
| case TARGET_SSI_IEEE_FP_CONTROL: |
| { |
| uint64_t swcr, fpcr; |
| |
| if (get_user_u64 (swcr, arg2)) { |
| return -TARGET_EFAULT; |
| } |
| |
| /* |
| * The kernel calls swcr_update_status to update the |
| * status bits from the fpcr at every point that it |
| * could be queried. Therefore, we store the status |
| * bits only in FPCR. |
| */ |
| ((CPUAlphaState *)cpu_env)->swcr |
| = swcr & (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK); |
| |
| fpcr = cpu_alpha_load_fpcr(cpu_env); |
| fpcr &= ((uint64_t)FPCR_DYN_MASK << 32); |
| fpcr |= alpha_ieee_swcr_to_fpcr(swcr); |
| cpu_alpha_store_fpcr(cpu_env, fpcr); |
| ret = 0; |
| } |
| break; |
| |
| case TARGET_SSI_IEEE_RAISE_EXCEPTION: |
| { |
| uint64_t exc, fpcr, fex; |
| |
| if (get_user_u64(exc, arg2)) { |
| return -TARGET_EFAULT; |
| } |
| exc &= SWCR_STATUS_MASK; |
| fpcr = cpu_alpha_load_fpcr(cpu_env); |
| |
| /* Old exceptions are not signaled. */ |
| fex = alpha_ieee_fpcr_to_swcr(fpcr); |
| fex = exc & ~fex; |
| fex >>= SWCR_STATUS_TO_EXCSUM_SHIFT; |
| fex &= ((CPUArchState *)cpu_env)->swcr; |
| |
| /* Update the hardware fpcr. */ |
| fpcr |= alpha_ieee_swcr_to_fpcr(exc); |
| cpu_alpha_store_fpcr(cpu_env, fpcr); |
| |
| if (fex) { |
| int si_code = TARGET_FPE_FLTUNK; |
| target_siginfo_t info; |
| |
| if (fex & SWCR_TRAP_ENABLE_DNO) { |
| si_code = TARGET_FPE_FLTUND; |
| } |
| if (fex & SWCR_TRAP_ENABLE_INE) { |
| si_code = TARGET_FPE_FLTRES; |
| } |
| if (fex & SWCR_TRAP_ENABLE_UNF) { |
| si_code = TARGET_FPE_FLTUND; |
| } |
| if (fex & SWCR_TRAP_ENABLE_OVF) { |
| si_code = TARGET_FPE_FLTOVF; |
| } |
| if (fex & SWCR_TRAP_ENABLE_DZE) { |
| si_code = TARGET_FPE_FLTDIV; |
| } |
| if (fex & SWCR_TRAP_ENABLE_INV) { |
| si_code = TARGET_FPE_FLTINV; |
| } |
| |
| info.si_signo = SIGFPE; |
| info.si_errno = 0; |
| info.si_code = si_code; |
| info._sifields._sigfault._addr |
| = ((CPUArchState *)cpu_env)->pc; |
| queue_signal((CPUArchState *)cpu_env, info.si_signo, |
| QEMU_SI_FAULT, &info); |
| } |
| ret = 0; |
| } |
| break; |
| |
| /* case SSI_NVPAIRS: |
| -- Used with SSIN_UACPROC to enable unaligned accesses. |
| case SSI_IEEE_STATE_AT_SIGNAL: |
| case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: |
| -- Not implemented in linux kernel |
| */ |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_osf_sigprocmask |
| /* Alpha specific. */ |
| case TARGET_NR_osf_sigprocmask: |
| { |
| abi_ulong mask; |
| int how; |
| sigset_t set, oldset; |
| |
| switch(arg1) { |
| case TARGET_SIG_BLOCK: |
| how = SIG_BLOCK; |
| break; |
| case TARGET_SIG_UNBLOCK: |
| how = SIG_UNBLOCK; |
| break; |
| case TARGET_SIG_SETMASK: |
| how = SIG_SETMASK; |
| break; |
| default: |
| return -TARGET_EINVAL; |
| } |
| mask = arg2; |
| target_to_host_old_sigset(&set, &mask); |
| ret = do_sigprocmask(how, &set, &oldset); |
| if (!ret) { |
| host_to_target_old_sigset(&mask, &oldset); |
| ret = mask; |
| } |
| } |
| return ret; |
| #endif |
| |
| #ifdef TARGET_NR_getgid32 |
| case TARGET_NR_getgid32: |
| return get_errno(getgid()); |
| #endif |
| #ifdef TARGET_NR_geteuid32 |
| case TARGET_NR_geteuid32: |
| return get_errno(geteuid()); |
| #endif |
| #ifdef TARGET_NR_getegid32 |
| case TARGET_NR_getegid32: |
| return get_errno(getegid()); |
| #endif |
| #ifdef TARGET_NR_setreuid32 |
| case TARGET_NR_setreuid32: |
| return get_errno(setreuid(arg1, arg2)); |
| #endif |
| #ifdef TARGET_NR_setregid32 |
| case TARGET_NR_setregid32: |
| return get_errno(setregid(arg1, arg2)); |
| #endif |
| #ifdef TARGET_NR_getgroups32 |
| case TARGET_NR_getgroups32: |
| { |
| int gidsetsize = arg1; |
| uint32_t *target_grouplist; |
| gid_t *grouplist; |
| int i; |
| |
| grouplist = alloca(gidsetsize * sizeof(gid_t)); |
| ret = get_errno(getgroups(gidsetsize, grouplist)); |
| if (gidsetsize == 0) |
| return ret; |
| if (!is_error(ret)) { |
| target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); |
| if (!target_grouplist) { |
| return -TARGET_EFAULT; |
| } |
| for(i = 0;i < ret; i++) |
| target_grouplist[i] = tswap32(grouplist[i]); |
| unlock_user(target_grouplist, arg2, gidsetsize * 4); |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_setgroups32 |
| case TARGET_NR_setgroups32: |
| { |
| int gidsetsize = arg1; |
| uint32_t *target_grouplist; |
| gid_t *grouplist; |
| int i; |
| |
| grouplist = alloca(gidsetsize * sizeof(gid_t)); |
| target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); |
| if (!target_grouplist) { |
| return -TARGET_EFAULT; |
| } |
| for(i = 0;i < gidsetsize; i++) |
| grouplist[i] = tswap32(target_grouplist[i]); |
| unlock_user(target_grouplist, arg2, 0); |
| return get_errno(setgroups(gidsetsize, grouplist)); |
| } |
| #endif |
| #ifdef TARGET_NR_fchown32 |
| case TARGET_NR_fchown32: |
| return get_errno(fchown(arg1, arg2, arg3)); |
| #endif |
| #ifdef TARGET_NR_setresuid32 |
| case TARGET_NR_setresuid32: |
| return get_errno(sys_setresuid(arg1, arg2, arg3)); |
| #endif |
| #ifdef TARGET_NR_getresuid32 |
| case TARGET_NR_getresuid32: |
| { |
| uid_t ruid, euid, suid; |
| ret = get_errno(getresuid(&ruid, &euid, &suid)); |
| if (!is_error(ret)) { |
| if (put_user_u32(ruid, arg1) |
| || put_user_u32(euid, arg2) |
| || put_user_u32(suid, arg3)) |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_setresgid32 |
| case TARGET_NR_setresgid32: |
| return get_errno(sys_setresgid(arg1, arg2, arg3)); |
| #endif |
| #ifdef TARGET_NR_getresgid32 |
| case TARGET_NR_getresgid32: |
| { |
| gid_t rgid, egid, sgid; |
| ret = get_errno(getresgid(&rgid, &egid, &sgid)); |
| if (!is_error(ret)) { |
| if (put_user_u32(rgid, arg1) |
| || put_user_u32(egid, arg2) |
| || put_user_u32(sgid, arg3)) |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_chown32 |
| case TARGET_NR_chown32: |
| if (!(p = lock_user_string(arg1))) |
| return -TARGET_EFAULT; |
| ret = get_errno(chown(p, arg2, arg3)); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #ifdef TARGET_NR_setuid32 |
| case TARGET_NR_setuid32: |
| return get_errno(sys_setuid(arg1)); |
| #endif |
| #ifdef TARGET_NR_setgid32 |
| case TARGET_NR_setgid32: |
| return get_errno(sys_setgid(arg1)); |
| #endif |
| #ifdef TARGET_NR_setfsuid32 |
| case TARGET_NR_setfsuid32: |
| return get_errno(setfsuid(arg1)); |
| #endif |
| #ifdef TARGET_NR_setfsgid32 |
| case TARGET_NR_setfsgid32: |
| return get_errno(setfsgid(arg1)); |
| #endif |
| #ifdef TARGET_NR_mincore |
| case TARGET_NR_mincore: |
| { |
| void *a = lock_user(VERIFY_READ, arg1, arg2, 0); |
| if (!a) { |
| return -TARGET_ENOMEM; |
| } |
| p = lock_user_string(arg3); |
| if (!p) { |
| ret = -TARGET_EFAULT; |
| } else { |
| ret = get_errno(mincore(a, arg2, p)); |
| unlock_user(p, arg3, ret); |
| } |
| unlock_user(a, arg1, 0); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_arm_fadvise64_64 |
| case TARGET_NR_arm_fadvise64_64: |
| /* arm_fadvise64_64 looks like fadvise64_64 but |
| * with different argument order: fd, advice, offset, len |
| * rather than the usual fd, offset, len, advice. |
| * Note that offset and len are both 64-bit so appear as |
| * pairs of 32-bit registers. |
| */ |
| ret = posix_fadvise(arg1, target_offset64(arg3, arg4), |
| target_offset64(arg5, arg6), arg2); |
| return -host_to_target_errno(ret); |
| #endif |
| |
| #if TARGET_ABI_BITS == 32 |
| |
| #ifdef TARGET_NR_fadvise64_64 |
| case TARGET_NR_fadvise64_64: |
| #if defined(TARGET_PPC) || defined(TARGET_XTENSA) |
| /* 6 args: fd, advice, offset (high, low), len (high, low) */ |
| ret = arg2; |
| arg2 = arg3; |
| arg3 = arg4; |
| arg4 = arg5; |
| arg5 = arg6; |
| arg6 = ret; |
| #else |
| /* 6 args: fd, offset (high, low), len (high, low), advice */ |
| if (regpairs_aligned(cpu_env, num)) { |
| /* offset is in (3,4), len in (5,6) and advice in 7 */ |
| arg2 = arg3; |
| arg3 = arg4; |
| arg4 = arg5; |
| arg5 = arg6; |
| arg6 = arg7; |
| } |
| #endif |
| ret = posix_fadvise(arg1, target_offset64(arg2, arg3), |
| target_offset64(arg4, arg5), arg6); |
| return -host_to_target_errno(ret); |
| #endif |
| |
| #ifdef TARGET_NR_fadvise64 |
| case TARGET_NR_fadvise64: |
| /* 5 args: fd, offset (high, low), len, advice */ |
| if (regpairs_aligned(cpu_env, num)) { |
| /* offset is in (3,4), len in 5 and advice in 6 */ |
| arg2 = arg3; |
| arg3 = arg4; |
| arg4 = arg5; |
| arg5 = arg6; |
| } |
| ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5); |
| return -host_to_target_errno(ret); |
| #endif |
| |
| #else /* not a 32-bit ABI */ |
| #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64) |
| #ifdef TARGET_NR_fadvise64_64 |
| case TARGET_NR_fadvise64_64: |
| #endif |
| #ifdef TARGET_NR_fadvise64 |
| case TARGET_NR_fadvise64: |
| #endif |
| #ifdef TARGET_S390X |
| switch (arg4) { |
| case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */ |
| case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */ |
| case 6: arg4 = POSIX_FADV_DONTNEED; break; |
| case 7: arg4 = POSIX_FADV_NOREUSE; break; |
| default: break; |
| } |
| #endif |
| return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4)); |
| #endif |
| #endif /* end of 64-bit ABI fadvise handling */ |
| |
| #ifdef TARGET_NR_madvise |
| case TARGET_NR_madvise: |
| /* A straight passthrough may not be safe because qemu sometimes |
| turns private file-backed mappings into anonymous mappings. |
| This will break MADV_DONTNEED. |
| This is a hint, so ignoring and returning success is ok. */ |
| return 0; |
| #endif |
| #ifdef TARGET_NR_fcntl64 |
| case TARGET_NR_fcntl64: |
| { |
| int cmd; |
| struct flock64 fl; |
| from_flock64_fn *copyfrom = copy_from_user_flock64; |
| to_flock64_fn *copyto = copy_to_user_flock64; |
| |
| #ifdef TARGET_ARM |
| if (!((CPUARMState *)cpu_env)->eabi) { |
| copyfrom = copy_from_user_oabi_flock64; |
| copyto = copy_to_user_oabi_flock64; |
| } |
| #endif |
| |
| cmd = target_to_host_fcntl_cmd(arg2); |
| if (cmd == -TARGET_EINVAL) { |
| return cmd; |
| } |
| |
| switch(arg2) { |
| case TARGET_F_GETLK64: |
| ret = copyfrom(&fl, arg3); |
| if (ret) { |
| break; |
| } |
| ret = get_errno(safe_fcntl(arg1, cmd, &fl)); |
| if (ret == 0) { |
| ret = copyto(arg3, &fl); |
| } |
| break; |
| |
| case TARGET_F_SETLK64: |
| case TARGET_F_SETLKW64: |
| ret = copyfrom(&fl, arg3); |
| if (ret) { |
| break; |
| } |
| ret = get_errno(safe_fcntl(arg1, cmd, &fl)); |
| break; |
| default: |
| ret = do_fcntl(arg1, arg2, arg3); |
| break; |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_cacheflush |
| case TARGET_NR_cacheflush: |
| /* self-modifying code is handled automatically, so nothing needed */ |
| return 0; |
| #endif |
| #ifdef TARGET_NR_getpagesize |
| case TARGET_NR_getpagesize: |
| return TARGET_PAGE_SIZE; |
| #endif |
| case TARGET_NR_gettid: |
| return get_errno(sys_gettid()); |
| #ifdef TARGET_NR_readahead |
| case TARGET_NR_readahead: |
| #if TARGET_ABI_BITS == 32 |
| if (regpairs_aligned(cpu_env, num)) { |
| arg2 = arg3; |
| arg3 = arg4; |
| arg4 = arg5; |
| } |
| ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4)); |
| #else |
| ret = get_errno(readahead(arg1, arg2, arg3)); |
| #endif |
| return ret; |
| #endif |
| #ifdef CONFIG_ATTR |
| #ifdef TARGET_NR_setxattr |
| case TARGET_NR_listxattr: |
| case TARGET_NR_llistxattr: |
| { |
| void *p, *b = 0; |
| if (arg2) { |
| b = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
| if (!b) { |
| return -TARGET_EFAULT; |
| } |
| } |
| p = lock_user_string(arg1); |
| if (p) { |
| if (num == TARGET_NR_listxattr) { |
| ret = get_errno(listxattr(p, b, arg3)); |
| } else { |
| ret = get_errno(llistxattr(p, b, arg3)); |
| } |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(p, arg1, 0); |
| unlock_user(b, arg2, arg3); |
| return ret; |
| } |
| case TARGET_NR_flistxattr: |
| { |
| void *b = 0; |
| if (arg2) { |
| b = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
| if (!b) { |
| return -TARGET_EFAULT; |
| } |
| } |
| ret = get_errno(flistxattr(arg1, b, arg3)); |
| unlock_user(b, arg2, arg3); |
| return ret; |
| } |
| case TARGET_NR_setxattr: |
| case TARGET_NR_lsetxattr: |
| { |
| void *p, *n, *v = 0; |
| if (arg3) { |
| v = lock_user(VERIFY_READ, arg3, arg4, 1); |
| if (!v) { |
| return -TARGET_EFAULT; |
| } |
| } |
| p = lock_user_string(arg1); |
| n = lock_user_string(arg2); |
| if (p && n) { |
| if (num == TARGET_NR_setxattr) { |
| ret = get_errno(setxattr(p, n, v, arg4, arg5)); |
| } else { |
| ret = get_errno(lsetxattr(p, n, v, arg4, arg5)); |
| } |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(p, arg1, 0); |
| unlock_user(n, arg2, 0); |
| unlock_user(v, arg3, 0); |
| } |
| return ret; |
| case TARGET_NR_fsetxattr: |
| { |
| void *n, *v = 0; |
| if (arg3) { |
| v = lock_user(VERIFY_READ, arg3, arg4, 1); |
| if (!v) { |
| return -TARGET_EFAULT; |
| } |
| } |
| n = lock_user_string(arg2); |
| if (n) { |
| ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5)); |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(n, arg2, 0); |
| unlock_user(v, arg3, 0); |
| } |
| return ret; |
| case TARGET_NR_getxattr: |
| case TARGET_NR_lgetxattr: |
| { |
| void *p, *n, *v = 0; |
| if (arg3) { |
| v = lock_user(VERIFY_WRITE, arg3, arg4, 0); |
| if (!v) { |
| return -TARGET_EFAULT; |
| } |
| } |
| p = lock_user_string(arg1); |
| n = lock_user_string(arg2); |
| if (p && n) { |
| if (num == TARGET_NR_getxattr) { |
| ret = get_errno(getxattr(p, n, v, arg4)); |
| } else { |
| ret = get_errno(lgetxattr(p, n, v, arg4)); |
| } |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(p, arg1, 0); |
| unlock_user(n, arg2, 0); |
| unlock_user(v, arg3, arg4); |
| } |
| return ret; |
| case TARGET_NR_fgetxattr: |
| { |
| void *n, *v = 0; |
| if (arg3) { |
| v = lock_user(VERIFY_WRITE, arg3, arg4, 0); |
| if (!v) { |
| return -TARGET_EFAULT; |
| } |
| } |
| n = lock_user_string(arg2); |
| if (n) { |
| ret = get_errno(fgetxattr(arg1, n, v, arg4)); |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(n, arg2, 0); |
| unlock_user(v, arg3, arg4); |
| } |
| return ret; |
| case TARGET_NR_removexattr: |
| case TARGET_NR_lremovexattr: |
| { |
| void *p, *n; |
| p = lock_user_string(arg1); |
| n = lock_user_string(arg2); |
| if (p && n) { |
| if (num == TARGET_NR_removexattr) { |
| ret = get_errno(removexattr(p, n)); |
| } else { |
| ret = get_errno(lremovexattr(p, n)); |
| } |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(p, arg1, 0); |
| unlock_user(n, arg2, 0); |
| } |
| return ret; |
| case TARGET_NR_fremovexattr: |
| { |
| void *n; |
| n = lock_user_string(arg2); |
| if (n) { |
| ret = get_errno(fremovexattr(arg1, n)); |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| unlock_user(n, arg2, 0); |
| } |
| return ret; |
| #endif |
| #endif /* CONFIG_ATTR */ |
| #ifdef TARGET_NR_set_thread_area |
| case TARGET_NR_set_thread_area: |
| #if defined(TARGET_MIPS) |
| ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1; |
| return 0; |
| #elif defined(TARGET_CRIS) |
| if (arg1 & 0xff) |
| ret = -TARGET_EINVAL; |
| else { |
| ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1; |
| ret = 0; |
| } |
| return ret; |
| #elif defined(TARGET_I386) && defined(TARGET_ABI32) |
| return do_set_thread_area(cpu_env, arg1); |
| #elif defined(TARGET_M68K) |
| { |
| TaskState *ts = cpu->opaque; |
| ts->tp_value = arg1; |
| return 0; |
| } |
| #else |
| return -TARGET_ENOSYS; |
| #endif |
| #endif |
| #ifdef TARGET_NR_get_thread_area |
| case TARGET_NR_get_thread_area: |
| #if defined(TARGET_I386) && defined(TARGET_ABI32) |
| return do_get_thread_area(cpu_env, arg1); |
| #elif defined(TARGET_M68K) |
| { |
| TaskState *ts = cpu->opaque; |
| return ts->tp_value; |
| } |
| #else |
| return -TARGET_ENOSYS; |
| #endif |
| #endif |
| #ifdef TARGET_NR_getdomainname |
| case TARGET_NR_getdomainname: |
| return -TARGET_ENOSYS; |
| #endif |
| |
| #ifdef TARGET_NR_clock_settime |
| case TARGET_NR_clock_settime: |
| { |
| struct timespec ts; |
| |
| ret = target_to_host_timespec(&ts, arg2); |
| if (!is_error(ret)) { |
| ret = get_errno(clock_settime(arg1, &ts)); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_clock_settime64 |
| case TARGET_NR_clock_settime64: |
| { |
| struct timespec ts; |
| |
| ret = target_to_host_timespec64(&ts, arg2); |
| if (!is_error(ret)) { |
| ret = get_errno(clock_settime(arg1, &ts)); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_clock_gettime |
| case TARGET_NR_clock_gettime: |
| { |
| struct timespec ts; |
| ret = get_errno(clock_gettime(arg1, &ts)); |
| if (!is_error(ret)) { |
| ret = host_to_target_timespec(arg2, &ts); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_clock_gettime64 |
| case TARGET_NR_clock_gettime64: |
| { |
| struct timespec ts; |
| ret = get_errno(clock_gettime(arg1, &ts)); |
| if (!is_error(ret)) { |
| ret = host_to_target_timespec64(arg2, &ts); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_clock_getres |
| case TARGET_NR_clock_getres: |
| { |
| struct timespec ts; |
| ret = get_errno(clock_getres(arg1, &ts)); |
| if (!is_error(ret)) { |
| host_to_target_timespec(arg2, &ts); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_clock_nanosleep |
| case TARGET_NR_clock_nanosleep: |
| { |
| struct timespec ts; |
| target_to_host_timespec(&ts, arg3); |
| ret = get_errno(safe_clock_nanosleep(arg1, arg2, |
| &ts, arg4 ? &ts : NULL)); |
| if (arg4) |
| host_to_target_timespec(arg4, &ts); |
| |
| #if defined(TARGET_PPC) |
| /* clock_nanosleep is odd in that it returns positive errno values. |
| * On PPC, CR0 bit 3 should be set in such a situation. */ |
| if (ret && ret != -TARGET_ERESTARTSYS) { |
| ((CPUPPCState *)cpu_env)->crf[0] |= 1; |
| } |
| #endif |
| return ret; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) |
| case TARGET_NR_set_tid_address: |
| return get_errno(set_tid_address((int *)g2h(arg1))); |
| #endif |
| |
| case TARGET_NR_tkill: |
| return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2))); |
| |
| case TARGET_NR_tgkill: |
| return get_errno(safe_tgkill((int)arg1, (int)arg2, |
| target_to_host_signal(arg3))); |
| |
| #ifdef TARGET_NR_set_robust_list |
| case TARGET_NR_set_robust_list: |
| case TARGET_NR_get_robust_list: |
| /* The ABI for supporting robust futexes has userspace pass |
| * the kernel a pointer to a linked list which is updated by |
| * userspace after the syscall; the list is walked by the kernel |
| * when the thread exits. Since the linked list in QEMU guest |
| * memory isn't a valid linked list for the host and we have |
| * no way to reliably intercept the thread-death event, we can't |
| * support these. Silently return ENOSYS so that guest userspace |
| * falls back to a non-robust futex implementation (which should |
| * be OK except in the corner case of the guest crashing while |
| * holding a mutex that is shared with another process via |
| * shared memory). |
| */ |
| return -TARGET_ENOSYS; |
| #endif |
| |
| #if defined(TARGET_NR_utimensat) |
| case TARGET_NR_utimensat: |
| { |
| struct timespec *tsp, ts[2]; |
| if (!arg3) { |
| tsp = NULL; |
| } else { |
| target_to_host_timespec(ts, arg3); |
| target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); |
| tsp = ts; |
| } |
| if (!arg2) |
| ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4)); |
| else { |
| if (!(p = lock_user_string(arg2))) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); |
| unlock_user(p, arg2, 0); |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_futex |
| case TARGET_NR_futex: |
| return do_futex(arg1, arg2, arg3, arg4, arg5, arg6); |
| #endif |
| #ifdef TARGET_NR_futex_time64 |
| case TARGET_NR_futex_time64: |
| return do_futex_time64(arg1, arg2, arg3, arg4, arg5, arg6); |
| #endif |
| #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) |
| case TARGET_NR_inotify_init: |
| ret = get_errno(sys_inotify_init()); |
| if (ret >= 0) { |
| fd_trans_register(ret, &target_inotify_trans); |
| } |
| return ret; |
| #endif |
| #ifdef CONFIG_INOTIFY1 |
| #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) |
| case TARGET_NR_inotify_init1: |
| ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1, |
| fcntl_flags_tbl))); |
| if (ret >= 0) { |
| fd_trans_register(ret, &target_inotify_trans); |
| } |
| return ret; |
| #endif |
| #endif |
| #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) |
| case TARGET_NR_inotify_add_watch: |
| p = lock_user_string(arg2); |
| ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3)); |
| unlock_user(p, arg2, 0); |
| return ret; |
| #endif |
| #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) |
| case TARGET_NR_inotify_rm_watch: |
| return get_errno(sys_inotify_rm_watch(arg1, arg2)); |
| #endif |
| |
| #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) |
| case TARGET_NR_mq_open: |
| { |
| struct mq_attr posix_mq_attr; |
| struct mq_attr *pposix_mq_attr; |
| int host_flags; |
| |
| host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl); |
| pposix_mq_attr = NULL; |
| if (arg4) { |
| if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) { |
| return -TARGET_EFAULT; |
| } |
| pposix_mq_attr = &posix_mq_attr; |
| } |
| p = lock_user_string(arg1 - 1); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr)); |
| unlock_user (p, arg1, 0); |
| } |
| return ret; |
| |
| case TARGET_NR_mq_unlink: |
| p = lock_user_string(arg1 - 1); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(mq_unlink(p)); |
| unlock_user (p, arg1, 0); |
| return ret; |
| |
| #ifdef TARGET_NR_mq_timedsend |
| case TARGET_NR_mq_timedsend: |
| { |
| struct timespec ts; |
| |
| p = lock_user (VERIFY_READ, arg2, arg3, 1); |
| if (arg5 != 0) { |
| target_to_host_timespec(&ts, arg5); |
| ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts)); |
| host_to_target_timespec(arg5, &ts); |
| } else { |
| ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL)); |
| } |
| unlock_user (p, arg2, arg3); |
| } |
| return ret; |
| #endif |
| |
| #ifdef TARGET_NR_mq_timedreceive |
| case TARGET_NR_mq_timedreceive: |
| { |
| struct timespec ts; |
| unsigned int prio; |
| |
| p = lock_user (VERIFY_READ, arg2, arg3, 1); |
| if (arg5 != 0) { |
| target_to_host_timespec(&ts, arg5); |
| ret = get_errno(safe_mq_timedreceive(arg1, p, arg3, |
| &prio, &ts)); |
| host_to_target_timespec(arg5, &ts); |
| } else { |
| ret = get_errno(safe_mq_timedreceive(arg1, p, arg3, |
| &prio, NULL)); |
| } |
| unlock_user (p, arg2, arg3); |
| if (arg4 != 0) |
| put_user_u32(prio, arg4); |
| } |
| return ret; |
| #endif |
| |
| /* Not implemented for now... */ |
| /* case TARGET_NR_mq_notify: */ |
| /* break; */ |
| |
| case TARGET_NR_mq_getsetattr: |
| { |
| struct mq_attr posix_mq_attr_in, posix_mq_attr_out; |
| ret = 0; |
| if (arg2 != 0) { |
| copy_from_user_mq_attr(&posix_mq_attr_in, arg2); |
| ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in, |
| &posix_mq_attr_out)); |
| } else if (arg3 != 0) { |
| ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out)); |
| } |
| if (ret == 0 && arg3 != 0) { |
| copy_to_user_mq_attr(arg3, &posix_mq_attr_out); |
| } |
| } |
| return ret; |
| #endif |
| |
| #ifdef CONFIG_SPLICE |
| #ifdef TARGET_NR_tee |
| case TARGET_NR_tee: |
| { |
| ret = get_errno(tee(arg1,arg2,arg3,arg4)); |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_splice |
| case TARGET_NR_splice: |
| { |
| loff_t loff_in, loff_out; |
| loff_t *ploff_in = NULL, *ploff_out = NULL; |
| if (arg2) { |
| if (get_user_u64(loff_in, arg2)) { |
| return -TARGET_EFAULT; |
| } |
| ploff_in = &loff_in; |
| } |
| if (arg4) { |
| if (get_user_u64(loff_out, arg4)) { |
| return -TARGET_EFAULT; |
| } |
| ploff_out = &loff_out; |
| } |
| ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); |
| if (arg2) { |
| if (put_user_u64(loff_in, arg2)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| if (arg4) { |
| if (put_user_u64(loff_out, arg4)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| return ret; |
| #endif |
| #ifdef TARGET_NR_vmsplice |
| case TARGET_NR_vmsplice: |
| { |
| struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); |
| if (vec != NULL) { |
| ret = get_errno(vmsplice(arg1, vec, arg3, arg4)); |
| unlock_iovec(vec, arg2, arg3, 0); |
| } else { |
| ret = -host_to_target_errno(errno); |
| } |
| } |
| return ret; |
| #endif |
| #endif /* CONFIG_SPLICE */ |
| #ifdef CONFIG_EVENTFD |
| #if defined(TARGET_NR_eventfd) |
| case TARGET_NR_eventfd: |
| ret = get_errno(eventfd(arg1, 0)); |
| if (ret >= 0) { |
| fd_trans_register(ret, &target_eventfd_trans); |
| } |
| return ret; |
| #endif |
| #if defined(TARGET_NR_eventfd2) |
| case TARGET_NR_eventfd2: |
| { |
| int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)); |
| if (arg2 & TARGET_O_NONBLOCK) { |
| host_flags |= O_NONBLOCK; |
| } |
| if (arg2 & TARGET_O_CLOEXEC) { |
| host_flags |= O_CLOEXEC; |
| } |
| ret = get_errno(eventfd(arg1, host_flags)); |
| if (ret >= 0) { |
| fd_trans_register(ret, &target_eventfd_trans); |
| } |
| return ret; |
| } |
| #endif |
| #endif /* CONFIG_EVENTFD */ |
| #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) |
| case TARGET_NR_fallocate: |
| #if TARGET_ABI_BITS == 32 |
| ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4), |
| target_offset64(arg5, arg6))); |
| #else |
| ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); |
| #endif |
| return ret; |
| #endif |
| #if defined(CONFIG_SYNC_FILE_RANGE) |
| #if defined(TARGET_NR_sync_file_range) |
| case TARGET_NR_sync_file_range: |
| #if TARGET_ABI_BITS == 32 |
| #if defined(TARGET_MIPS) |
| ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), |
| target_offset64(arg5, arg6), arg7)); |
| #else |
| ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3), |
| target_offset64(arg4, arg5), arg6)); |
| #endif /* !TARGET_MIPS */ |
| #else |
| ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4)); |
| #endif |
| return ret; |
| #endif |
| #if defined(TARGET_NR_sync_file_range2) || \ |
| defined(TARGET_NR_arm_sync_file_range) |
| #if defined(TARGET_NR_sync_file_range2) |
| case TARGET_NR_sync_file_range2: |
| #endif |
| #if defined(TARGET_NR_arm_sync_file_range) |
| case TARGET_NR_arm_sync_file_range: |
| #endif |
| /* This is like sync_file_range but the arguments are reordered */ |
| #if TARGET_ABI_BITS == 32 |
| ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), |
| target_offset64(arg5, arg6), arg2)); |
| #else |
| ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2)); |
| #endif |
| return ret; |
| #endif |
| #endif |
| #if defined(TARGET_NR_signalfd4) |
| case TARGET_NR_signalfd4: |
| return do_signalfd4(arg1, arg2, arg4); |
| #endif |
| #if defined(TARGET_NR_signalfd) |
| case TARGET_NR_signalfd: |
| return do_signalfd4(arg1, arg2, 0); |
| #endif |
| #if defined(CONFIG_EPOLL) |
| #if defined(TARGET_NR_epoll_create) |
| case TARGET_NR_epoll_create: |
| return get_errno(epoll_create(arg1)); |
| #endif |
| #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1) |
| case TARGET_NR_epoll_create1: |
| return get_errno(epoll_create1(target_to_host_bitmask(arg1, fcntl_flags_tbl))); |
| #endif |
| #if defined(TARGET_NR_epoll_ctl) |
| case TARGET_NR_epoll_ctl: |
| { |
| struct epoll_event ep; |
| struct epoll_event *epp = 0; |
| if (arg4) { |
| struct target_epoll_event *target_ep; |
| if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) { |
| return -TARGET_EFAULT; |
| } |
| ep.events = tswap32(target_ep->events); |
| /* The epoll_data_t union is just opaque data to the kernel, |
| * so we transfer all 64 bits across and need not worry what |
| * actual data type it is. |
| */ |
| ep.data.u64 = tswap64(target_ep->data.u64); |
| unlock_user_struct(target_ep, arg4, 0); |
| epp = &ep; |
| } |
| return get_errno(epoll_ctl(arg1, arg2, arg3, epp)); |
| } |
| #endif |
| |
| #if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait) |
| #if defined(TARGET_NR_epoll_wait) |
| case TARGET_NR_epoll_wait: |
| #endif |
| #if defined(TARGET_NR_epoll_pwait) |
| case TARGET_NR_epoll_pwait: |
| #endif |
| { |
| struct target_epoll_event *target_ep; |
| struct epoll_event *ep; |
| int epfd = arg1; |
| int maxevents = arg3; |
| int timeout = arg4; |
| |
| if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) { |
| return -TARGET_EINVAL; |
| } |
| |
| target_ep = lock_user(VERIFY_WRITE, arg2, |
| maxevents * sizeof(struct target_epoll_event), 1); |
| if (!target_ep) { |
| return -TARGET_EFAULT; |
| } |
| |
| ep = g_try_new(struct epoll_event, maxevents); |
| if (!ep) { |
| unlock_user(target_ep, arg2, 0); |
| return -TARGET_ENOMEM; |
| } |
| |
| switch (num) { |
| #if defined(TARGET_NR_epoll_pwait) |
| case TARGET_NR_epoll_pwait: |
| { |
| target_sigset_t *target_set; |
| sigset_t _set, *set = &_set; |
| |
| if (arg5) { |
| if (arg6 != sizeof(target_sigset_t)) { |
| ret = -TARGET_EINVAL; |
| break; |
| } |
| |
| target_set = lock_user(VERIFY_READ, arg5, |
| sizeof(target_sigset_t), 1); |
| if (!target_set) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| target_to_host_sigset(set, target_set); |
| unlock_user(target_set, arg5, 0); |
| } else { |
| set = NULL; |
| } |
| |
| ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout, |
| set, SIGSET_T_SIZE)); |
| break; |
| } |
| #endif |
| #if defined(TARGET_NR_epoll_wait) |
| case TARGET_NR_epoll_wait: |
| ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout, |
| NULL, 0)); |
| break; |
| #endif |
| default: |
| ret = -TARGET_ENOSYS; |
| } |
| if (!is_error(ret)) { |
| int i; |
| for (i = 0; i < ret; i++) { |
| target_ep[i].events = tswap32(ep[i].events); |
| target_ep[i].data.u64 = tswap64(ep[i].data.u64); |
| } |
| unlock_user(target_ep, arg2, |
| ret * sizeof(struct target_epoll_event)); |
| } else { |
| unlock_user(target_ep, arg2, 0); |
| } |
| g_free(ep); |
| return ret; |
| } |
| #endif |
| #endif |
| #ifdef TARGET_NR_prlimit64 |
| case TARGET_NR_prlimit64: |
| { |
| /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */ |
| struct target_rlimit64 *target_rnew, *target_rold; |
| struct host_rlimit64 rnew, rold, *rnewp = 0; |
| int resource = target_to_host_resource(arg2); |
| |
| if (arg3 && (resource != RLIMIT_AS && |
| resource != RLIMIT_DATA && |
| resource != RLIMIT_STACK)) { |
| if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) { |
| return -TARGET_EFAULT; |
| } |
| rnew.rlim_cur = tswap64(target_rnew->rlim_cur); |
| rnew.rlim_max = tswap64(target_rnew->rlim_max); |
| unlock_user_struct(target_rnew, arg3, 0); |
| rnewp = &rnew; |
| } |
| |
| ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0)); |
| if (!is_error(ret) && arg4) { |
| if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) { |
| return -TARGET_EFAULT; |
| } |
| target_rold->rlim_cur = tswap64(rold.rlim_cur); |
| target_rold->rlim_max = tswap64(rold.rlim_max); |
| unlock_user_struct(target_rold, arg4, 1); |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_gethostname |
| case TARGET_NR_gethostname: |
| { |
| char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0); |
| if (name) { |
| ret = get_errno(gethostname(name, arg2)); |
| unlock_user(name, arg1, arg2); |
| } else { |
| ret = -TARGET_EFAULT; |
| } |
| return ret; |
| } |
| #endif |
| #ifdef TARGET_NR_atomic_cmpxchg_32 |
| case TARGET_NR_atomic_cmpxchg_32: |
| { |
| /* should use start_exclusive from main.c */ |
| abi_ulong mem_value; |
| if (get_user_u32(mem_value, arg6)) { |
| target_siginfo_t info; |
| info.si_signo = SIGSEGV; |
| info.si_errno = 0; |
| info.si_code = TARGET_SEGV_MAPERR; |
| info._sifields._sigfault._addr = arg6; |
| queue_signal((CPUArchState *)cpu_env, info.si_signo, |
| QEMU_SI_FAULT, &info); |
| ret = 0xdeadbeef; |
| |
| } |
| if (mem_value == arg2) |
| put_user_u32(arg1, arg6); |
| return mem_value; |
| } |
| #endif |
| #ifdef TARGET_NR_atomic_barrier |
| case TARGET_NR_atomic_barrier: |
| /* Like the kernel implementation and the |
| qemu arm barrier, no-op this? */ |
| return 0; |
| #endif |
| |
| #ifdef TARGET_NR_timer_create |
| case TARGET_NR_timer_create: |
| { |
| /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */ |
| |
| struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL; |
| |
| int clkid = arg1; |
| int timer_index = next_free_host_timer(); |
| |
| if (timer_index < 0) { |
| ret = -TARGET_EAGAIN; |
| } else { |
| timer_t *phtimer = g_posix_timers + timer_index; |
| |
| if (arg2) { |
| phost_sevp = &host_sevp; |
| ret = target_to_host_sigevent(phost_sevp, arg2); |
| if (ret != 0) { |
| return ret; |
| } |
| } |
| |
| ret = get_errno(timer_create(clkid, phost_sevp, phtimer)); |
| if (ret) { |
| phtimer = NULL; |
| } else { |
| if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| return ret; |
| } |
| #endif |
| |
| #ifdef TARGET_NR_timer_settime |
| case TARGET_NR_timer_settime: |
| { |
| /* args: timer_t timerid, int flags, const struct itimerspec *new_value, |
| * struct itimerspec * old_value */ |
| target_timer_t timerid = get_timer_id(arg1); |
| |
| if (timerid < 0) { |
| ret = timerid; |
| } else if (arg3 == 0) { |
| ret = -TARGET_EINVAL; |
| } else { |
| timer_t htimer = g_posix_timers[timerid]; |
| struct itimerspec hspec_new = {{0},}, hspec_old = {{0},}; |
| |
| if (target_to_host_itimerspec(&hspec_new, arg3)) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno( |
| timer_settime(htimer, arg2, &hspec_new, &hspec_old)); |
| if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| } |
| #endif |
| |
| #ifdef TARGET_NR_timer_gettime |
| case TARGET_NR_timer_gettime: |
| { |
| /* args: timer_t timerid, struct itimerspec *curr_value */ |
| target_timer_t timerid = get_timer_id(arg1); |
| |
| if (timerid < 0) { |
| ret = timerid; |
| } else if (!arg2) { |
| ret = -TARGET_EFAULT; |
| } else { |
| timer_t htimer = g_posix_timers[timerid]; |
| struct itimerspec hspec; |
| ret = get_errno(timer_gettime(htimer, &hspec)); |
| |
| if (host_to_target_itimerspec(arg2, &hspec)) { |
| ret = -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| } |
| #endif |
| |
| #ifdef TARGET_NR_timer_getoverrun |
| case TARGET_NR_timer_getoverrun: |
| { |
| /* args: timer_t timerid */ |
| target_timer_t timerid = get_timer_id(arg1); |
| |
| if (timerid < 0) { |
| ret = timerid; |
| } else { |
| timer_t htimer = g_posix_timers[timerid]; |
| ret = get_errno(timer_getoverrun(htimer)); |
| } |
| return ret; |
| } |
| #endif |
| |
| #ifdef TARGET_NR_timer_delete |
| case TARGET_NR_timer_delete: |
| { |
| /* args: timer_t timerid */ |
| target_timer_t timerid = get_timer_id(arg1); |
| |
| if (timerid < 0) { |
| ret = timerid; |
| } else { |
| timer_t htimer = g_posix_timers[timerid]; |
| ret = get_errno(timer_delete(htimer)); |
| g_posix_timers[timerid] = 0; |
| } |
| return ret; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD) |
| case TARGET_NR_timerfd_create: |
| return get_errno(timerfd_create(arg1, |
| target_to_host_bitmask(arg2, fcntl_flags_tbl))); |
| #endif |
| |
| #if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD) |
| case TARGET_NR_timerfd_gettime: |
| { |
| struct itimerspec its_curr; |
| |
| ret = get_errno(timerfd_gettime(arg1, &its_curr)); |
| |
| if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| |
| #if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD) |
| case TARGET_NR_timerfd_settime: |
| { |
| struct itimerspec its_new, its_old, *p_new; |
| |
| if (arg3) { |
| if (target_to_host_itimerspec(&its_new, arg3)) { |
| return -TARGET_EFAULT; |
| } |
| p_new = &its_new; |
| } else { |
| p_new = NULL; |
| } |
| |
| ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old)); |
| |
| if (arg4 && host_to_target_itimerspec(arg4, &its_old)) { |
| return -TARGET_EFAULT; |
| } |
| } |
| return ret; |
| #endif |
| |
| #if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get) |
| case TARGET_NR_ioprio_get: |
| return get_errno(ioprio_get(arg1, arg2)); |
| #endif |
| |
| #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set) |
| case TARGET_NR_ioprio_set: |
| return get_errno(ioprio_set(arg1, arg2, arg3)); |
| #endif |
| |
| #if defined(TARGET_NR_setns) && defined(CONFIG_SETNS) |
| case TARGET_NR_setns: |
| return get_errno(setns(arg1, arg2)); |
| #endif |
| #if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS) |
| case TARGET_NR_unshare: |
| return get_errno(unshare(arg1)); |
| #endif |
| #if defined(TARGET_NR_kcmp) && defined(__NR_kcmp) |
| case TARGET_NR_kcmp: |
| return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5)); |
| #endif |
| #ifdef TARGET_NR_swapcontext |
| case TARGET_NR_swapcontext: |
| /* PowerPC specific. */ |
| return do_swapcontext(cpu_env, arg1, arg2, arg3); |
| #endif |
| #ifdef TARGET_NR_memfd_create |
| case TARGET_NR_memfd_create: |
| p = lock_user_string(arg1); |
| if (!p) { |
| return -TARGET_EFAULT; |
| } |
| ret = get_errno(memfd_create(p, arg2)); |
| fd_trans_unregister(ret); |
| unlock_user(p, arg1, 0); |
| return ret; |
| #endif |
| #if defined TARGET_NR_membarrier && defined __NR_membarrier |
| case TARGET_NR_membarrier: |
| return get_errno(membarrier(arg1, arg2)); |
| #endif |
| |
| default: |
| qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num); |
| return -TARGET_ENOSYS; |
| } |
| return ret; |
| } |
| |
| abi_long do_syscall(void *cpu_env, int num, abi_long arg1, |
| abi_long arg2, abi_long arg3, abi_long arg4, |
| abi_long arg5, abi_long arg6, abi_long arg7, |
| abi_long arg8) |
| { |
| CPUState *cpu = env_cpu(cpu_env); |
| abi_long ret; |
| |
| #ifdef DEBUG_ERESTARTSYS |
| /* Debug-only code for exercising the syscall-restart code paths |
| * in the per-architecture cpu main loops: restart every syscall |
| * the guest makes once before letting it through. |
| */ |
| { |
| static bool flag; |
| flag = !flag; |
| if (flag) { |
| return -TARGET_ERESTARTSYS; |
| } |
| } |
| #endif |
| |
| record_syscall_start(cpu, num, arg1, |
| arg2, arg3, arg4, arg5, arg6, arg7, arg8); |
| |
| if (unlikely(qemu_loglevel_mask(LOG_STRACE))) { |
| print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
| } |
| |
| ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4, |
| arg5, arg6, arg7, arg8); |
| |
| if (unlikely(qemu_loglevel_mask(LOG_STRACE))) { |
| print_syscall_ret(num, ret); |
| } |
| |
| record_syscall_return(cpu, num, ret); |
| return ret; |
| } |