| /* |
| * 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 <stdlib.h> |
| #include <stdio.h> |
| #include <stdarg.h> |
| #include <string.h> |
| #include <elf.h> |
| #include <endian.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <time.h> |
| #include <limits.h> |
| #include <grp.h> |
| #include <sys/types.h> |
| #include <sys/ipc.h> |
| #include <sys/msg.h> |
| #include <sys/wait.h> |
| #include <sys/time.h> |
| #include <sys/stat.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/mman.h> |
| #include <sys/swap.h> |
| #include <linux/capability.h> |
| #include <signal.h> |
| #include <sched.h> |
| #ifdef __ia64__ |
| int __clone2(int (*fn)(void *), void *child_stack_base, |
| size_t stack_size, int flags, void *arg, ...); |
| #endif |
| #include <sys/socket.h> |
| #include <sys/un.h> |
| #include <sys/uio.h> |
| #include <sys/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/user.h> |
| #include <netinet/ip.h> |
| #include <netinet/tcp.h> |
| #include <linux/wireless.h> |
| #include <linux/icmp.h> |
| #include "qemu-common.h" |
| #ifdef TARGET_GPROF |
| #include <sys/gmon.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 |
| |
| #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> |
| #if defined(CONFIG_FIEMAP) |
| #include <linux/fiemap.h> |
| #endif |
| #include <linux/fb.h> |
| #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 "linux_loop.h" |
| #include "uname.h" |
| |
| #include "qemu.h" |
| |
| #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \ |
| CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID) |
| |
| //#define DEBUG |
| |
| //#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_syslog __NR_syslog |
| #define __NR_sys_tgkill __NR_tgkill |
| #define __NR_sys_tkill __NR_tkill |
| #define __NR_sys_futex __NR_futex |
| #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 |
| |
| #if defined(__alpha__) || defined (__ia64__) || 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 |
| |
| #ifdef __NR_gettid |
| _syscall0(int, gettid) |
| #else |
| /* This is a replacement for the host gettid() and must return a host |
| errno. */ |
| static int gettid(void) { |
| return -ENOSYS; |
| } |
| #endif |
| #ifdef __NR_getdents |
| _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count); |
| #endif |
| #if !defined(__NR_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,int,pid,int,sig,siginfo_t *,uinfo) |
| _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) |
| #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) |
| _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) |
| #endif |
| #if defined(TARGET_NR_tkill) && defined(__NR_tkill) |
| _syscall2(int,sys_tkill,int,tid,int,sig) |
| #endif |
| #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(TARGET_NR_futex) && defined(__NR_futex) |
| _syscall6(int,sys_futex,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); |
| _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); |
| |
| 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 |
| /* 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_openat |
| static int sys_openat(int dirfd, const char *pathname, int flags, mode_t mode) |
| { |
| /* |
| * open(2) has extra parameter 'mode' when called with |
| * flag O_CREAT. |
| */ |
| if ((flags & O_CREAT) != 0) { |
| return (openat(dirfd, pathname, flags, mode)); |
| } |
| return (openat(dirfd, pathname, flags)); |
| } |
| #endif |
| |
| #ifdef TARGET_NR_utimensat |
| #ifdef CONFIG_UTIMENSAT |
| static int sys_utimensat(int dirfd, const char *pathname, |
| const struct timespec times[2], int flags) |
| { |
| if (pathname == NULL) |
| return futimens(dirfd, times); |
| else |
| return utimensat(dirfd, pathname, times, flags); |
| } |
| #elif 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 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_ppoll) |
| #ifndef __NR_ppoll |
| # define __NR_ppoll -1 |
| #endif |
| #define __NR_sys_ppoll __NR_ppoll |
| _syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds, |
| struct timespec *, timeout, const sigset_t *, sigmask, |
| size_t, sigsetsize) |
| #endif |
| |
| #if defined(TARGET_NR_pselect6) |
| #ifndef __NR_pselect6 |
| # define __NR_pselect6 -1 |
| #endif |
| #define __NR_sys_pselect6 __NR_pselect6 |
| _syscall6(int, sys_pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, |
| fd_set *, exceptfds, struct timespec *, timeout, void *, sig); |
| #endif |
| |
| #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) { |
| return ((((CPUARMState *)cpu_env)->eabi) == 1) ; |
| } |
| #elif defined(TARGET_MIPS) |
| static inline int regpairs_aligned(void *cpu_env) { 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) { return 1; } |
| #else |
| static inline int regpairs_aligned(void *cpu_env) { 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] = { |
| [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, |
| [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 |
| }; |
| |
| static inline int host_to_target_errno(int err) |
| { |
| if(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 (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; |
| } |
| |
| static inline int is_error(abi_long ret) |
| { |
| return (abi_ulong)ret >= (abi_ulong)(-4096); |
| } |
| |
| char *target_strerror(int err) |
| { |
| if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) { |
| return NULL; |
| } |
| return strerror(target_to_host_errno(err)); |
| } |
| |
| 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; |
| int 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; |
| } |
| |
| 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 = (n + TARGET_ABI_BITS - 1) / 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 = (n + TARGET_ABI_BITS - 1) / 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; |
| } |
| |
| #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; |
| } |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| #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, *tv_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; |
| tv_ptr = &tv; |
| } else { |
| tv_ptr = NULL; |
| } |
| |
| ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_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 (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv)) |
| return -TARGET_EFAULT; |
| } |
| |
| return ret; |
| } |
| #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(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; |
| |
| 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; |
| 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; |
| |
| target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); |
| if (!target_saddr) |
| return -TARGET_EFAULT; |
| memcpy(target_saddr, addr, len); |
| target_saddr->sa_family = tswap16(addr->sa_family); |
| 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; |
| 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); |
| 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) |
| - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); |
| |
| space += CMSG_SPACE(len); |
| if (space > msgh->msg_controllen) { |
| space -= CMSG_SPACE(len); |
| gemu_log("Host cmsg overflow\n"); |
| 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) { |
| gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); |
| memcpy(data, target_data, len); |
| } else { |
| int *fd = (int *)data; |
| int *target_fd = (int *)target_data; |
| int i, numfds = len / sizeof(int); |
| |
| for (i = 0; i < numfds; i++) |
| fd[i] = tswap32(target_fd[i]); |
| } |
| |
| cmsg = CMSG_NXTHDR(msgh, cmsg); |
| target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); |
| } |
| 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; |
| 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); |
| 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 - CMSG_ALIGN(sizeof (struct cmsghdr)); |
| |
| space += TARGET_CMSG_SPACE(len); |
| if (space > msg_controllen) { |
| space -= TARGET_CMSG_SPACE(len); |
| gemu_log("Target cmsg overflow\n"); |
| 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); |
| target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len)); |
| |
| 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 = len / sizeof(int); |
| |
| for (i = 0; i < numfds; i++) |
| target_fd[i] = tswap32(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)) |
| goto unimplemented; |
| |
| /* copy struct timeval to target */ |
| target_tv->tv_sec = tswapal(tv->tv_sec); |
| target_tv->tv_usec = tswapal(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; |
| |
| default: |
| unimplemented: |
| gemu_log("Unsupported ancillary data: %d/%d\n", |
| cmsg->cmsg_level, cmsg->cmsg_type); |
| memcpy(target_data, data, len); |
| } |
| |
| cmsg = CMSG_NXTHDR(msgh, cmsg); |
| target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); |
| } |
| 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_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: |
| 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; |
| default: |
| goto unimplemented; |
| } |
| break; |
| case SOL_RAW: |
| switch (optname) { |
| case ICMP_FILTER: |
| /* struct icmp_filter takes 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; |
| 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 = malloc(fprog.len * sizeof(*filter)); |
| 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))); |
| free(filter); |
| |
| unlock_user_struct(tfilter, tfprog->filter, 1); |
| unlock_user_struct(tfprog, optval_addr, 1); |
| return ret; |
| } |
| /* Options with 'int' argument. */ |
| case TARGET_SO_DEBUG: |
| optname = SO_DEBUG; |
| break; |
| case TARGET_SO_REUSEADDR: |
| optname = SO_REUSEADDR; |
| break; |
| 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_RCVBUF: |
| optname = SO_RCVBUF; |
| 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_TIMESTAMP: |
| optname = SO_TIMESTAMP; |
| break; |
| case TARGET_SO_RCVLOWAT: |
| optname = SO_RCVLOWAT; |
| break; |
| 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; |
| default: |
| unimplemented: |
| gemu_log("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_LINGER: |
| case TARGET_SO_RCVTIMEO: |
| case TARGET_SO_SNDTIMEO: |
| case TARGET_SO_PEERNAME: |
| goto unimplemented; |
| 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; |
| } |
| /* Options with 'int' argument. */ |
| case TARGET_SO_DEBUG: |
| optname = SO_DEBUG; |
| goto int_case; |
| case TARGET_SO_REUSEADDR: |
| optname = SO_REUSEADDR; |
| goto int_case; |
| 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; |
| 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 (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; |
| default: |
| unimplemented: |
| gemu_log("getsockopt level=%d optname=%d not yet supported\n", |
| level, optname); |
| ret = -TARGET_EOPNOTSUPP; |
| break; |
| } |
| return ret; |
| } |
| |
| static struct iovec *lock_iovec(int type, abi_ulong target_addr, |
| int count, int copy) |
| { |
| struct target_iovec *target_vec; |
| struct iovec *vec; |
| abi_ulong total_len, max_len; |
| int i; |
| int err = 0; |
| |
| if (count == 0) { |
| errno = 0; |
| return NULL; |
| } |
| if (count < 0 || count > IOV_MAX) { |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| vec = calloc(count, sizeof(struct iovec)); |
| 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 (!vec[i].iov_base) { |
| err = EFAULT; |
| goto fail; |
| } |
| 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: |
| unlock_user(target_vec, target_addr, 0); |
| fail2: |
| free(vec); |
| errno = err; |
| return NULL; |
| } |
| |
| static void unlock_iovec(struct iovec *vec, abi_ulong target_addr, |
| int 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_base); |
| if (len < 0) { |
| break; |
| } |
| unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); |
| } |
| unlock_user(target_vec, target_addr, 0); |
| } |
| |
| 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) |
| return -TARGET_EAFNOSUPPORT; |
| ret = get_errno(socket(domain, type, protocol)); |
| if (ret >= 0) { |
| ret = sock_flags_fixup(ret, target_type); |
| } |
| 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(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); |
| |
| ret = target_to_host_sockaddr(addr, target_addr, addrlen); |
| if (ret) |
| return ret; |
| |
| return get_errno(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; |
| int 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); |
| ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name), |
| msg.msg_namelen); |
| 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); |
| msg.msg_flags = tswap32(msgp->msg_flags); |
| |
| count = tswapal(msgp->msg_iovlen); |
| target_vec = tswapal(msgp->msg_iov); |
| 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) { |
| ret = target_to_host_cmsg(&msg, msgp); |
| if (ret == 0) |
| ret = get_errno(sendmsg(fd, &msg, flags)); |
| } else { |
| ret = get_errno(recvmsg(fd, &msg, flags)); |
| if (!is_error(ret)) { |
| len = ret; |
| ret = host_to_target_cmsg(msgp, &msg); |
| if (!is_error(ret)) { |
| msgp->msg_namelen = tswap32(msg.msg_namelen); |
| if (msg.msg_name != NULL) { |
| 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; |
| } |
| |
| #ifdef TARGET_NR_sendmmsg |
| /* 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; |
| } |
| #endif |
| |
| /* If we don't have a system accept4() then just call accept. |
| * The callsites to do_accept4() will ensure that they don't |
| * pass a non-zero flags argument in this config. |
| */ |
| #ifndef CONFIG_ACCEPT4 |
| static inline int accept4(int sockfd, struct sockaddr *addr, |
| socklen_t *addrlen, int flags) |
| { |
| assert(flags == 0); |
| return accept(sockfd, addr, addrlen); |
| } |
| #endif |
| |
| /* 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; |
| 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(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 = get_errno(accept4(fd, addr, &addrlen, host_flags)); |
| if (!is_error(ret)) { |
| host_to_target_sockaddr(target_addr, addr, addrlen); |
| if (put_user_u32(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; |
| 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 = get_errno(getpeername(fd, addr, &addrlen)); |
| if (!is_error(ret)) { |
| host_to_target_sockaddr(target_addr, addr, addrlen); |
| if (put_user_u32(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; |
| 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 = get_errno(getsockname(fd, addr, &addrlen)); |
| if (!is_error(ret)) { |
| host_to_target_sockaddr(target_addr, addr, addrlen); |
| if (put_user_u32(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; |
| 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 (target_addr) { |
| addr = alloca(addrlen); |
| ret = target_to_host_sockaddr(addr, target_addr, addrlen); |
| if (ret) { |
| unlock_user(host_msg, msg, 0); |
| return ret; |
| } |
| ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); |
| } else { |
| ret = get_errno(send(fd, host_msg, len, flags)); |
| } |
| 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; |
| 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 = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); |
| } else { |
| addr = NULL; /* To keep compiler quiet. */ |
| ret = get_errno(qemu_recv(fd, host_msg, len, flags)); |
| } |
| if (!is_error(ret)) { |
| if (target_addr) { |
| host_to_target_sockaddr(target_addr, addr, addrlen); |
| if (put_user_u32(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 ac[] = { /* number of arguments per call */ |
| [SOCKOP_socket] = 3, /* domain, type, protocol */ |
| [SOCKOP_bind] = 3, /* sockfd, addr, addrlen */ |
| [SOCKOP_connect] = 3, /* sockfd, addr, addrlen */ |
| [SOCKOP_listen] = 2, /* sockfd, backlog */ |
| [SOCKOP_accept] = 3, /* sockfd, addr, addrlen */ |
| [SOCKOP_accept4] = 4, /* sockfd, addr, addrlen, flags */ |
| [SOCKOP_getsockname] = 3, /* sockfd, addr, addrlen */ |
| [SOCKOP_getpeername] = 3, /* sockfd, addr, addrlen */ |
| [SOCKOP_socketpair] = 4, /* domain, type, protocol, tab */ |
| [SOCKOP_send] = 4, /* sockfd, msg, len, flags */ |
| [SOCKOP_recv] = 4, /* sockfd, msg, len, flags */ |
| [SOCKOP_sendto] = 6, /* sockfd, msg, len, flags, addr, addrlen */ |
| [SOCKOP_recvfrom] = 6, /* sockfd, msg, len, flags, addr, addrlen */ |
| [SOCKOP_shutdown] = 2, /* sockfd, how */ |
| [SOCKOP_sendmsg] = 3, /* sockfd, msg, flags */ |
| [SOCKOP_recvmsg] = 3, /* sockfd, msg, flags */ |
| [SOCKOP_setsockopt] = 5, /* sockfd, level, optname, optval, optlen */ |
| [SOCKOP_getsockopt] = 5, /* sockfd, level, optname, optval, optlen */ |
| }; |
| abi_long a[6]; /* max 6 args */ |
| |
| /* first, collect the arguments in a[] according to ac[] */ |
| if (num >= 0 && num < ARRAY_SIZE(ac)) { |
| unsigned i; |
| assert(ARRAY_SIZE(a) >= ac[num]); /* ensure we have space for args */ |
| for (i = 0; i < ac[num]; ++i) { |
| if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) { |
| return -TARGET_EFAULT; |
| } |
| } |
| } |
| |
| /* now when we have the args, actually handle the call */ |
| switch (num) { |
| case SOCKOP_socket: /* domain, type, protocol */ |
| return do_socket(a[0], a[1], a[2]); |
| case SOCKOP_bind: /* sockfd, addr, addrlen */ |
| return do_bind(a[0], a[1], a[2]); |
| case SOCKOP_connect: /* sockfd, addr, addrlen */ |
| return do_connect(a[0], a[1], a[2]); |
| case SOCKOP_listen: /* sockfd, backlog */ |
| return get_errno(listen(a[0], a[1])); |
| case SOCKOP_accept: /* sockfd, addr, addrlen */ |
| return do_accept4(a[0], a[1], a[2], 0); |
| case SOCKOP_accept4: /* sockfd, addr, addrlen, flags */ |
| return do_accept4(a[0], a[1], a[2], a[3]); |
| case SOCKOP_getsockname: /* sockfd, addr, addrlen */ |
| return do_getsockname(a[0], a[1], a[2]); |
| case SOCKOP_getpeername: /* sockfd, addr, addrlen */ |
| return do_getpeername(a[0], a[1], a[2]); |
| case SOCKOP_socketpair: /* domain, type, protocol, tab */ |
| return do_socketpair(a[0], a[1], a[2], a[3]); |
| case SOCKOP_send: /* sockfd, msg, len, flags */ |
| return do_sendto(a[0], a[1], a[2], a[3], 0, 0); |
| case SOCKOP_recv: /* sockfd, msg, len, flags */ |
| return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0); |
| case SOCKOP_sendto: /* sockfd, msg, len, flags, addr, addrlen */ |
| return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]); |
| case SOCKOP_recvfrom: /* sockfd, msg, len, flags, addr, addrlen */ |
| return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]); |
| case SOCKOP_shutdown: /* sockfd, how */ |
| return get_errno(shutdown(a[0], a[1])); |
| case SOCKOP_sendmsg: /* sockfd, msg, flags */ |
| return do_sendrecvmsg(a[0], a[1], a[2], 1); |
| case SOCKOP_recvmsg: /* sockfd, msg, flags */ |
| return do_sendrecvmsg(a[0], a[1], a[2], 0); |
| case SOCKOP_setsockopt: /* sockfd, level, optname, optval, optlen */ |
| return do_setsockopt(a[0], a[1], a[2], a[3], a[4]); |
| case SOCKOP_getsockopt: /* sockfd, level, optname, optval, optlen */ |
| return do_getsockopt(a[0], a[1], a[2], a[3], a[4]); |
| default: |
| gemu_log("Unsupported socketcall: %d\n", num); |
| return -TARGET_ENOSYS; |
| } |
| } |
| #endif |
| |
| #define N_SHM_REGIONS 32 |
| |
| static struct shm_region { |
| abi_ulong start; |
| abi_ulong size; |
| } shm_regions[N_SHM_REGIONS]; |
| |
| struct target_semid_ds |
| { |
| struct target_ipc_perm sem_perm; |
| abi_ulong sem_otime; |
| abi_ulong __unused1; |
| abi_ulong sem_ctime; |
| abi_ulong __unused2; |
| abi_ulong sem_nsems; |
| abi_ulong __unused3; |
| abi_ulong __unused4; |
| }; |
| |
| 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_semid_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_semid_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_semid_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_semid_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 = malloc(nsems*sizeof(unsigned short)); |
| if (!*host_array) { |
| return -TARGET_ENOMEM; |
| } |
| array = lock_user(VERIFY_READ, target_addr, |
| nsems*sizeof(unsigned short), 1); |
| if (!array) { |
| 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]); |
| } |
| free(*host_array); |
| unlock_user(array, target_addr, 1); |
| |
| return 0; |
| } |
| |
| static inline abi_long do_semctl(int semid, int semnum, int cmd, |
| union target_semun target_su) |
| { |
| 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: |
| arg.val = tswap32(target_su.val); |
| ret = get_errno(semctl(semid, semnum, cmd, arg)); |
| target_su.val = tswap32(arg.val); |
| 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]; |
| |
| if (target_to_host_sembuf(sops, ptr, nsops)) |
| return -TARGET_EFAULT; |
| |
| return get_errno(semop(semid, sops, nsops)); |
| } |
| |
| 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, |
| unsigned int msgsz, int msgflg) |
| { |
| struct target_msgbuf *target_mb; |
| struct msgbuf *host_mb; |
| abi_long ret = 0; |
| |
| if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) |
| return -TARGET_EFAULT; |
| host_mb = malloc(msgsz+sizeof(long)); |
| host_mb->mtype = (abi_long) tswapal(target_mb->mtype); |
| memcpy(host_mb->mtext, target_mb->mtext, msgsz); |
| ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); |
| free(host_mb); |
| unlock_user_struct(target_mb, msgp, 0); |
| |
| return ret; |
| } |
| |
| static inline abi_long do_msgrcv(int msqid, abi_long msgp, |
| unsigned int msgsz, abi_long msgtyp, |
| int msgflg) |
| { |
| struct target_msgbuf *target_mb; |
| char *target_mtext; |
| struct msgbuf *host_mb; |
| abi_long ret = 0; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) |
| return -TARGET_EFAULT; |
| |
| host_mb = g_malloc(msgsz+sizeof(long)); |
| ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg)); |
| |
| 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; |
| } |
| |
| static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg) |
| { |
| abi_long raddr; |
| void *host_raddr; |
| struct shmid_ds shm_info; |
| int i,ret; |
| |
| /* 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; |
| } |
| |
| mmap_lock(); |
| |
| if (shmaddr) |
| host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); |
| else { |
| abi_ulong mmap_start; |
| |
| mmap_start = mmap_find_vma(0, shm_info.shm_segsz); |
| |
| 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].start == 0) { |
| 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; |
| |
| for (i = 0; i < N_SHM_REGIONS; ++i) { |
| if (shm_regions[i].start == shmaddr) { |
| shm_regions[i].start = 0; |
| page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0); |
| break; |
| } |
| } |
| |
| return get_errno(shmdt(g2h(shmaddr))); |
| } |
| |
| #ifdef TARGET_NR_ipc |
| /* ??? This only works with linear mappings. */ |
| /* do_ipc() must return target values and target errnos. */ |
| static abi_long do_ipc(unsigned int call, int first, |
| int second, int 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: |
| ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr); |
| 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(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: |
| gemu_log("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" |
| }; |
| #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, abi_long cmd, abi_long arg); |
| |
| struct IOCTLEntry { |
| unsigned 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, abi_long 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 = malloc(outbufsz); |
| if (!fm) { |
| return -TARGET_ENOMEM; |
| } |
| memcpy(fm, buf_temp, sizeof(struct fiemap)); |
| free_fm = 1; |
| } |
| ret = get_errno(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) { |
| free(fm); |
| } |
| return ret; |
| } |
| #endif |
| |
| static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, abi_long 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_len = host_ifconf->ifc_len; |
| target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf; |
| |
| target_ifreq_size = thunk_type_size(ifreq_arg_type, 0); |
| 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; |
| host_ifconf->ifc_buf = host_ifc_buf; |
| |
| ret = get_errno(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); |
| |
| /* 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; |
| } |
| |
| static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd, |
| abi_long 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 = -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); |
| 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; |
| goto out; |
| } |
| unlock_user(argptr, guest_data, 0); |
| |
| ret = get_errno(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: |
| 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_rt(const IOCTLEntry *ie, uint8_t *buf_temp, |
| int fd, abi_long 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; |
| unsigned long *host_rt_dev_ptr; |
| 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(ioctl(fd, ie->host_cmd, buf_temp)); |
| if (*host_rt_dev_ptr != 0) { |
| unlock_user((void *)*host_rt_dev_ptr, |
| *target_rt_dev_ptr, 0); |
| } |
| return ret; |
| } |
| |
| 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__ } }, |
| #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, abi_long 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) { |
| gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); |
| return -TARGET_ENOSYS; |
| } |
| if (ie->target_cmd == cmd) |
| break; |
| ie++; |
| } |
| arg_type = ie->arg_type; |
| #if defined(DEBUG) |
| gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); |
| #endif |
| if (ie->do_ioctl) { |
| return ie->do_ioctl(ie, buf_temp, fd, cmd, arg); |
| } |
| |
| switch(arg_type[0]) { |
| case TYPE_NULL: |
| /* no argument */ |
| ret = get_errno(ioctl(fd, ie->host_cmd)); |
| break; |
| case TYPE_PTRVOID: |
| case TYPE_INT: |
| /* int argment */ |
| ret = get_errno(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(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(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(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: |
| gemu_log("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 }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| #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_I386) && 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; |
| } |
| #endif /* TARGET_I386 && TARGET_ABI32 */ |
| |
| #ifndef TARGET_ABI32 |
| 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 |
| |
| #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; |
| |
| env = info->env; |
| cpu = ENV_GET_CPU(env); |
| thread_cpu = cpu; |
| ts = (TaskState *)cpu->opaque; |
| info->tid = gettid(); |
| cpu->host_tid = info->tid; |
| 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); |
| /* 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 finshed 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_GET_CPU(env); |
| int ret; |
| TaskState *ts; |
| CPUState *new_cpu; |
| CPUArchState *new_env; |
| unsigned int nptl_flags; |
| sigset_t sigmask; |
| |
| /* 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; |
| |
| ts = g_malloc0(sizeof(TaskState)); |
| init_task_state(ts); |
| /* we create a new CPU instance. */ |
| new_env = cpu_copy(env); |
| /* Init regs that differ from the parent. */ |
| cpu_clone_regs(new_env, newsp); |
| new_cpu = ENV_GET_CPU(new_env); |
| new_cpu->opaque = ts; |
| ts->bprm = parent_ts->bprm; |
| ts->info = parent_ts->info; |
| nptl_flags = flags; |
| flags &= ~CLONE_NPTL_FLAGS2; |
| |
| if (nptl_flags & CLONE_CHILD_CLEARTID) { |
| ts->child_tidptr = child_tidptr; |
| } |
| |
| if (nptl_flags & CLONE_SETTLS) |
| cpu_set_tls (new_env, newtls); |
| |
| /* Grab a mutex so that thread setup appears atomic. */ |
| pthread_mutex_lock(&clone_lock); |
| |
| 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 (nptl_flags & CLONE_CHILD_SETTID) |
| info.child_tidptr = child_tidptr; |
| if (nptl_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); |
| |
| 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; |
| if (flags & CLONE_PARENT_SETTID) |
| put_user_u32(ret, parent_tidptr); |
| } 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 & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) |
| return -EINVAL; |
| fork_start(); |
| ret = fork(); |
| if (ret == 0) { |
| /* Child Process. */ |
| cpu_clone_regs(env, newsp); |
| 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(gettid(), child_tidptr); |
| if (flags & CLONE_PARENT_SETTID) |
| put_user_u32(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 { |
| fork_end(0); |
| } |
| } |
| return ret; |
| } |
| |
| /* warning : doesn't handle linux specific flags... */ |
| static int target_to_host_fcntl_cmd(int cmd) |
| { |
| switch(cmd) { |
| case TARGET_F_DUPFD: |
| case TARGET_F_GETFD: |
| case TARGET_F_SETFD: |
| case TARGET_F_GETFL: |
| case TARGET_F_SETFL: |
| return cmd; |
| case TARGET_F_GETLK: |
| return F_GETLK; |
| case TARGET_F_SETLK: |
| return F_SETLK; |
| case TARGET_F_SETLKW: |
| return F_SETLKW; |
| case TARGET_F_GETOWN: |
| return F_GETOWN; |
| case TARGET_F_SETOWN: |
| return F_SETOWN; |
| case TARGET_F_GETSIG: |
| return F_GETSIG; |
| case TARGET_F_SETSIG: |
| return F_SETSIG; |
| #if TARGET_ABI_BITS == 32 |
| case TARGET_F_GETLK64: |
| return F_GETLK64; |
| case TARGET_F_SETLK64: |
| return F_SETLK64; |
| case TARGET_F_SETLKW64: |
| return F_SETLKW64; |
| #endif |
| case TARGET_F_SETLEASE: |
| return F_SETLEASE; |
| case TARGET_F_GETLEASE: |
| return F_GETLEASE; |
| #ifdef F_DUPFD_CLOEXEC |
| case TARGET_F_DUPFD_CLOEXEC: |
| return F_DUPFD_CLOEXEC; |
| #endif |
| case TARGET_F_NOTIFY: |
| return F_NOTIFY; |
| #ifdef F_GETOWN_EX |
| case TARGET_F_GETOWN_EX: |
| return F_GETOWN_EX; |
| #endif |
| #ifdef F_SETOWN_EX |
| case TARGET_F_SETOWN_EX: |
| return F_SETOWN_EX; |
| #endif |
| default: |
| return -TARGET_EINVAL; |
| } |
| return -TARGET_EINVAL; |
| } |
| |
| #define TRANSTBL_CONVERT(a) { -1, TARGET_##a, -1, a } |
| static const bitmask_transtbl flock_tbl[] = { |
| TRANSTBL_CONVERT(F_RDLCK), |
| TRANSTBL_CONVERT(F_WRLCK), |
| TRANSTBL_CONVERT(F_UNLCK), |
| TRANSTBL_CONVERT(F_EXLCK), |
| TRANSTBL_CONVERT(F_SHLCK), |
| { 0, 0, 0, 0 } |
| }; |
| |
| static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) |
| { |
| struct flock fl; |
| struct target_flock *target_fl; |
| struct flock64 fl64; |
| struct target_flock64 *target_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: |
| if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) |
| return -TARGET_EFAULT; |
| fl.l_type = |
| target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl); |
| fl.l_whence = tswap16(target_fl->l_whence); |
| fl.l_start = tswapal(target_fl->l_start); |
| fl.l_len = tswapal(target_fl->l_len); |
| fl.l_pid = tswap32(target_fl->l_pid); |
| unlock_user_struct(target_fl, arg, 0); |
| ret = get_errno(fcntl(fd, host_cmd, &fl)); |
| if (ret == 0) { |
| if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) |
| return -TARGET_EFAULT; |
| target_fl->l_type = |
| host_to_target_bitmask(tswap16(fl.l_type), flock_tbl); |
| target_fl->l_whence = tswap16(fl.l_whence); |
| target_fl->l_start = tswapal(fl.l_start); |
| target_fl->l_len = tswapal(fl.l_len); |
| target_fl->l_pid = tswap32(fl.l_pid); |
| unlock_user_struct(target_fl, arg, 1); |
| } |
| break; |
| |
| case TARGET_F_SETLK: |
| case TARGET_F_SETLKW: |
| if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) |
| return -TARGET_EFAULT; |
| fl.l_type = |
| target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl); |
| fl.l_whence = tswap16(target_fl->l_whence); |
| fl.l_start = tswapal(target_fl->l_start); |
| fl.l_len = tswapal(target_fl->l_len); |
| fl.l_pid = tswap32(target_fl->l_pid); |
| unlock_user_struct(target_fl, arg, 0); |
| ret = get_errno(fcntl(fd, host_cmd, &fl)); |
| break; |
| |
| case TARGET_F_GETLK64: |
| if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) |
| return -TARGET_EFAULT; |
| fl64.l_type = |
| target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1; |
| fl64.l_whence = tswap16(target_fl64->l_whence); |
| fl64.l_start = tswap64(target_fl64->l_start); |
| fl64.l_len = tswap64(target_fl64->l_len); |
| fl64.l_pid = tswap32(target_fl64->l_pid); |
| unlock_user_struct(target_fl64, arg, 0); |
| ret = get_errno(fcntl(fd, host_cmd, &fl64)); |
| if (ret == 0) { |
| if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) |
| return -TARGET_EFAULT; |
| target_fl64->l_type = |
| host_to_target_bitmask(tswap16(fl64.l_type), flock_tbl) >> 1; |
| target_fl64->l_whence = tswap16(fl64.l_whence); |
| target_fl64->l_start = tswap64(fl64.l_start); |
| target_fl64->l_len = tswap64(fl64.l_len); |
| target_fl64->l_pid = tswap32(fl64.l_pid); |
| unlock_user_struct(target_fl64, arg, 1); |
| } |
| break; |
| case TARGET_F_SETLK64: |
| case TARGET_F_SETLKW64: |
| if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) |
| return -TARGET_EFAULT; |
| fl64.l_type = |
| target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1; |
| fl64.l_whence = tswap16(target_fl64->l_whence); |
| fl64.l_start = tswap64(target_fl64->l_start); |
| fl64.l_len = tswap64(target_fl64->l_len); |
| fl64.l_pid = tswap32(target_fl64->l_pid); |
| unlock_user_struct(target_fl64, arg, 0); |
| ret = get_errno(fcntl(fd, host_cmd, &fl64)); |
| break; |
| |
| case TARGET_F_GETFL: |
| ret = get_errno(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(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(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(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: |
| ret = get_errno(fcntl(fd, host_cmd, arg)); |
| break; |
| |
| default: |
| ret = get_errno(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 */ |
| |
| void syscall_init(void) |
| { |
| IOCTLEntry *ie; |
| const argtype *arg_type; |
| int size; |
| int i; |
| |
| #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)) { |
| 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)) { |
| arg2 = arg3; |
| arg3 = arg4; |
| } |
| return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); |
| } |
| #endif |
| |
| 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; |
| host_ts->tv_sec = tswapal(target_ts->tv_sec); |
| host_ts->tv_nsec = tswapal(target_ts->tv_nsec); |
| unlock_user_struct(target_ts, target_addr, 0); |
| return 0; |
| } |
| |
| 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; |
| target_ts->tv_sec = tswapal(host_ts->tv_sec); |
| target_ts->tv_nsec = tswapal(host_ts->tv_nsec); |
| unlock_user_struct(target_ts, target_addr, 1); |
| return 0; |
| } |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| #if defined(TARGET_NR_stat64) || 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); |
| 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); |
| unlock_user_struct(target_st, target_addr, 1); |
| } |
| |
| return 0; |
| } |
| #endif |
| |
| /* ??? 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. */ |
| 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 get_errno(sys_futex(g2h(uaddr), op, tswap32(val), |
| pts, NULL, val3)); |
| case FUTEX_WAKE: |
| return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0)); |
| case FUTEX_FD: |
| return get_errno(sys_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 get_errno(sys_futex(g2h(uaddr), op, val, pts, |
| g2h(uaddr2), |
| (base_op == FUTEX_CMP_REQUEUE |
| ? tswap32(val3) |
| : val3))); |
| default: |
| return -TARGET_ENOSYS; |
| } |
| } |
| |
| /* 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_maps(void *cpu_env, int fd) |
| { |
| #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) |
| CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env); |
| TaskState *ts = cpu->opaque; |
| #endif |
| FILE *fp; |
| char *line = NULL; |
| size_t len = 0; |
| ssize_t read; |
| |
| fp = fopen("/proc/self/maps", "r"); |
| if (fp == NULL) { |
| return -EACCES; |
| } |
| |
| while ((read = getline(&line, &len, fp)) != -1) { |
| int fields, dev_maj, dev_min, inode; |
| uint64_t min, max, offset; |
| char flag_r, flag_w, flag_x, flag_p; |
| char path[512] = ""; |
| fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d" |
| " %512s", &min, &max, &flag_r, &flag_w, &flag_x, |
| &flag_p, &offset, &dev_maj, &dev_min, &inode, path); |
| |
| if ((fields < 10) || (fields > 11)) { |
| continue; |
| } |
| if (!strncmp(path, "[stack]", 7)) { |
| continue; |
| } |
| if (h2g_valid(min) && h2g_valid(max)) { |
| dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx |
| " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n", |
| h2g(min), h2g(max), flag_r, flag_w, |
| flag_x, flag_p, offset, dev_maj, dev_min, inode, |
| path[0] ? " " : "", path); |
| } |
| } |
| |
| free(line); |
| fclose(fp); |
| |
| #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) |
| dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n", |
| (unsigned long long)ts->info->stack_limit, |
| (unsigned long long)(ts->info->start_stack + |
| (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK, |
| (unsigned long long)0); |
| #endif |
| |
| return 0; |
| } |
| |
| static int open_self_stat(void *cpu_env, int fd) |
| { |
| CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env); |
| TaskState *ts = cpu->opaque; |
| abi_ulong start_stack = ts->info->start_stack; |
| int i; |
| |
| for (i = 0; i < 44; i++) { |
| char buf[128]; |
| int len; |
| uint64_t val = 0; |
| |
| if (i == 0) { |
| /* pid */ |
| val = getpid(); |
| snprintf(buf, sizeof(buf), "%"PRId64 " ", val); |
| } else if (i == 1) { |
| /* app name */ |
| snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]); |
| } else if (i == 27) { |
| /* stack bottom */ |
| val = start_stack; |
| snprintf(buf, sizeof(buf), "%"PRId64 " ", val); |
| } else { |
| /* for the rest, there is MasterCard */ |
| snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' '); |
| } |
| |
| len = strlen(buf); |
| if (write(fd, buf, len) != len) { |
| return -1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int open_self_auxv(void *cpu_env, int fd) |
| { |
| CPUState *cpu = ENV_GET_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) |
| static int is_proc(const char *filename, const char *entry) |
| { |
| return strcmp(filename, entry) == 0; |
| } |
| |
| 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 -EACCES; |
| } |
| |
| /* 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; |
| 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); |
| 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 |
| |
| static int do_open(void *cpu_env, 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 }, |
| #if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) |
| { "/proc/net/route", open_net_route, is_proc }, |
| #endif |
| { NULL, NULL, NULL } |
| }; |
| |
| if (is_proc_myself(pathname, "exe")) { |
| int execfd = qemu_getauxval(AT_EXECFD); |
| return execfd ? execfd : get_errno(open(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))) { |
| close(fd); |
| return r; |
| } |
| lseek(fd, 0, SEEK_SET); |
| |
| return fd; |
| } |
| |
| return get_errno(open(path(pathname), flags, mode)); |
| } |
| |
| /* do_syscall() should always have a single exit point at the end so |
| that actions, such as logging of syscall results, can be performed. |
| All errnos that do_syscall() returns must be -TARGET_<errcode>. */ |
| 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_GET_CPU(cpu_env); |
| abi_long ret; |
| struct stat st; |
| struct statfs stfs; |
| void *p; |
| |
| #ifdef DEBUG |
| gemu_log("syscall %d", num); |
| #endif |
| if(do_strace) |
| print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); |
| |
| 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. */ |
| /* FIXME: This probably breaks if a signal arrives. We should probably |
| be disabling signals. */ |
| if (CPU_NEXT(first_cpu)) { |
| TaskState *ts; |
| |
| cpu_list_lock(); |
| /* Remove the CPU from the list. */ |
| QTAILQ_REMOVE(&cpus, cpu, node); |
| cpu_list_unlock(); |
| ts = cpu->opaque; |
| if (ts->child_tidptr) { |
| put_user_u32(0, ts->child_tidptr); |
| sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX, |
| NULL, NULL, 0); |
| } |
| thread_cpu = NULL; |
| object_unref(OBJECT(cpu)); |
| g_free(ts); |
| pthread_exit(NULL); |
| } |
| #ifdef TARGET_GPROF |
| _mcleanup(); |
| #endif |
| gdb_exit(cpu_env, arg1); |
| _exit(arg1); |
| ret = 0; /* avoid warning */ |
| break; |
| case TARGET_NR_read: |
| if (arg3 == 0) |
| ret = 0; |
| else { |
| if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) |
| goto efault; |
| ret = get_errno(read(arg1, p, arg3)); |
| unlock_user(p, arg2, ret); |
| } |
| break; |
| case TARGET_NR_write: |
| if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) |
| goto efault; |
| ret = get_errno(write(arg1, p, arg3)); |
| unlock_user(p, arg2, 0); |
| break; |
| case TARGET_NR_open: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(do_open(cpu_env, p, |
| target_to_host_bitmask(arg2, fcntl_flags_tbl), |
| arg3)); |
| unlock_user(p, arg1, 0); |
| break; |
| #if defined(TARGET_NR_openat) && defined(__NR_openat) |
| case TARGET_NR_openat: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(sys_openat(arg1, |
| path(p), |
| target_to_host_bitmask(arg3, fcntl_flags_tbl), |
| arg4)); |
| unlock_user(p, arg2, 0); |
| break; |
| #endif |
| case TARGET_NR_close: |
| ret = get_errno(close(arg1)); |
| break; |
| case TARGET_NR_brk: |
| ret = do_brk(arg1); |
| break; |
| case TARGET_NR_fork: |
| ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0)); |
| break; |
| #ifdef TARGET_NR_waitpid |
| case TARGET_NR_waitpid: |
| { |
| int status; |
| ret = get_errno(waitpid(arg1, &status, arg3)); |
| if (!is_error(ret) && arg2 && ret |
| && put_user_s32(host_to_target_waitstatus(status), arg2)) |
| goto efault; |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_waitid |
| case TARGET_NR_waitid: |
| { |
| siginfo_t info; |
| info.si_pid = 0; |
| ret = get_errno(waitid(arg1, arg2, &info, arg4)); |
| if (!is_error(ret) && arg3 && info.si_pid != 0) { |
| if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) |
| goto efault; |
| host_to_target_siginfo(p, &info); |
| unlock_user(p, arg3, sizeof(target_siginfo_t)); |
| } |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_creat /* not on alpha */ |
| case TARGET_NR_creat: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(creat(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| #endif |
| 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); |
| } |
| break; |
| #if defined(TARGET_NR_linkat) |
| case TARGET_NR_linkat: |
| { |
| void * p2 = NULL; |
| if (!arg2 || !arg4) |
| goto 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); |
| } |
| break; |
| #endif |
| case TARGET_NR_unlink: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(unlink(p)); |
| unlock_user(p, arg1, 0); |
| break; |
| #if defined(TARGET_NR_unlinkat) |
| case TARGET_NR_unlinkat: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(unlinkat(arg1, p, arg3)); |
| unlock_user(p, arg2, 0); |
| break; |
| #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)) |
| goto 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)) |
| goto efault; |
| if (!addr) |
| break; |
| envc++; |
| } |
| |
| argp = alloca((argc + 1) * sizeof(void *)); |
| envp = alloca((envc + 1) * sizeof(void *)); |
| |
| 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; |
| |
| /* This case will not be caught by the host's execve() if its |
| page size is bigger than the target's. */ |
| if (total_size > MAX_ARG_PAGES * TARGET_PAGE_SIZE) { |
| ret = -TARGET_E2BIG; |
| goto execve_end; |
| } |
| if (!(p = lock_user_string(arg1))) |
| goto execve_efault; |
| ret = get_errno(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); |
| } |
| } |
| break; |
| case TARGET_NR_chdir: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(chdir(p)); |
| unlock_user(p, arg1, 0); |
| break; |
| #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)) |
| goto efault; |
| } |
| break; |
| #endif |
| case TARGET_NR_mknod: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(mknod(p, arg2, arg3)); |
| unlock_user(p, arg1, 0); |
| break; |
| #if defined(TARGET_NR_mknodat) |
| case TARGET_NR_mknodat: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(mknodat(arg1, p, arg3, arg4)); |
| unlock_user(p, arg2, 0); |
| break; |
| #endif |
| case TARGET_NR_chmod: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(chmod(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| #ifdef TARGET_NR_break |
| case TARGET_NR_break: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_oldstat |
| case TARGET_NR_oldstat: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_lseek: |
| ret = get_errno(lseek(arg1, arg2, arg3)); |
| break; |
| #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA) |
| /* Alpha specific */ |
| case TARGET_NR_getxpid: |
| ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid(); |
| ret = get_errno(getpid()); |
| break; |
| #endif |
| #ifdef TARGET_NR_getpid |
| case TARGET_NR_getpid: |
| ret = get_errno(getpid()); |
| break; |
| #endif |
| case TARGET_NR_mount: |
| { |
| /* need to look at the data field */ |
| void *p2, *p3; |
| p = lock_user_string(arg1); |
| p2 = lock_user_string(arg2); |
| p3 = lock_user_string(arg3); |
| if (!p || !p2 || !p3) |
| ret = -TARGET_EFAULT; |
| else { |
| /* 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 = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL)); |
| else |
| ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); |
| } |
| unlock_user(p, arg1, 0); |
| unlock_user(p2, arg2, 0); |
| unlock_user(p3, arg3, 0); |
| break; |
| } |
| #ifdef TARGET_NR_umount |
| case TARGET_NR_umount: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(umount(p)); |
| unlock_user(p, arg1, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_stime /* not on alpha */ |
| case TARGET_NR_stime: |
| { |
| time_t host_time; |
| if (get_user_sal(host_time, arg1)) |
| goto efault; |
| ret = get_errno(stime(&host_time)); |
| } |
| break; |
| #endif |
| case TARGET_NR_ptrace: |
| goto unimplemented; |
| #ifdef TARGET_NR_alarm /* not on alpha */ |
| case TARGET_NR_alarm: |
| ret = alarm(arg1); |
| break; |
| #endif |
| #ifdef TARGET_NR_oldfstat |
| case TARGET_NR_oldfstat: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_pause /* not on alpha */ |
| case TARGET_NR_pause: |
| ret = get_errno(pause()); |
| break; |
| #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)) |
| goto 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))) |
| goto efault; |
| ret = get_errno(utime(p, host_tbuf)); |
| unlock_user(p, arg1, 0); |
| } |
| break; |
| #endif |
| 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))) |
| goto efault; |
| tvp = tv; |
| } else { |
| tvp = NULL; |
| } |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(utimes(p, tvp)); |
| unlock_user(p, arg1, 0); |
| } |
| break; |
| #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))) |
| goto efault; |
| tvp = tv; |
| } else { |
| tvp = NULL; |
| } |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(futimesat(arg1, path(p), tvp)); |
| unlock_user(p, arg2, 0); |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_stty |
| case TARGET_NR_stty: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_gtty |
| case TARGET_NR_gtty: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_access: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(access(path(p), arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) |
| case TARGET_NR_faccessat: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(faccessat(arg1, p, arg3, 0)); |
| unlock_user(p, arg2, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_nice /* not on alpha */ |
| case TARGET_NR_nice: |
| ret = get_errno(nice(arg1)); |
| break; |
| #endif |
| #ifdef TARGET_NR_ftime |
| case TARGET_NR_ftime: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_sync: |
| sync(); |
| ret = 0; |
| break; |
| case TARGET_NR_kill: |
| ret = get_errno(kill(arg1, target_to_host_signal(arg2))); |
| break; |
| 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); |
| } |
| break; |
| #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); |
| } |
| break; |
| #endif |
| case TARGET_NR_mkdir: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(mkdir(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| #if defined(TARGET_NR_mkdirat) |
| case TARGET_NR_mkdirat: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(mkdirat(arg1, p, arg3)); |
| unlock_user(p, arg2, 0); |
| break; |
| #endif |
| case TARGET_NR_rmdir: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(rmdir(p)); |
| unlock_user(p, arg1, 0); |
| break; |
| case TARGET_NR_dup: |
| ret = get_errno(dup(arg1)); |
| break; |
| case TARGET_NR_pipe: |
| ret = do_pipe(cpu_env, arg1, 0, 0); |
| break; |
| #ifdef TARGET_NR_pipe2 |
| case TARGET_NR_pipe2: |
| ret = do_pipe(cpu_env, arg1, |
| target_to_host_bitmask(arg2, fcntl_flags_tbl), 1); |
| break; |
| #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) |
| goto 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); |
| } |
| break; |
| #ifdef TARGET_NR_prof |
| case TARGET_NR_prof: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_signal |
| case TARGET_NR_signal: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_acct: |
| if (arg1 == 0) { |
| ret = get_errno(acct(NULL)); |
| } else { |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(acct(path(p))); |
| unlock_user(p, arg1, 0); |
| } |
| break; |
| #ifdef TARGET_NR_umount2 |
| case TARGET_NR_umount2: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(umount2(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_lock |
| case TARGET_NR_lock: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_ioctl: |
| ret = do_ioctl(arg1, arg2, arg3); |
| break; |
| case TARGET_NR_fcntl: |
| ret = do_fcntl(arg1, arg2, arg3); |
| break; |
| #ifdef TARGET_NR_mpx |
| case TARGET_NR_mpx: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_setpgid: |
| ret = get_errno(setpgid(arg1, arg2)); |
| break; |
| #ifdef TARGET_NR_ulimit |
| case TARGET_NR_ulimit: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_oldolduname |
| case TARGET_NR_oldolduname: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_umask: |
| ret = get_errno(umask(arg1)); |
| break; |
| case TARGET_NR_chroot: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(chroot(p)); |
| unlock_user(p, arg1, 0); |
| break; |
| case TARGET_NR_ustat: |
| goto unimplemented; |
| case TARGET_NR_dup2: |
| ret = get_errno(dup2(arg1, arg2)); |
| break; |
| #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) |
| case TARGET_NR_dup3: |
| ret = get_errno(dup3(arg1, arg2, arg3)); |
| break; |
| #endif |
| #ifdef TARGET_NR_getppid /* not on alpha */ |
| case TARGET_NR_getppid: |
| ret = get_errno(getppid()); |
| break; |
| #endif |
| case TARGET_NR_getpgrp: |
| ret = get_errno(getpgrp()); |
| break; |
| case TARGET_NR_setsid: |
| ret = get_errno(setsid()); |
| break; |
| #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)) |
| goto 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)) |
| goto 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)) |
| goto 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)) |
| goto 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)) |
| goto 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; |
| 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)) |
| goto 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 |
| } |
| break; |
| #endif |
| case TARGET_NR_rt_sigaction: |
| { |
| #if defined(TARGET_ALPHA) |
| struct target_sigaction act, oact, *pact = 0; |
| struct target_rt_sigaction *rt_act; |
| /* ??? arg4 == sizeof(sigset_t). */ |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) |
| goto 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)) |
| goto 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 |
| struct target_sigaction *act; |
| struct target_sigaction *oact; |
| |
| if (arg2) { |
| if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) |
| goto efault; |
| } 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 |
| } |
| break; |
| #ifdef TARGET_NR_sgetmask /* not on alpha */ |
| case TARGET_NR_sgetmask: |
| { |
| sigset_t cur_set; |
| abi_ulong target_set; |
| do_sigprocmask(0, NULL, &cur_set); |
| host_to_target_old_sigset(&target_set, &cur_set); |
| ret = target_set; |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_ssetmask /* not on alpha */ |
| case TARGET_NR_ssetmask: |
| { |
| sigset_t set, oset, cur_set; |
| abi_ulong target_set = arg1; |
| do_sigprocmask(0, NULL, &cur_set); |
| target_to_host_old_sigset(&set, &target_set); |
| sigorset(&set, &set, &cur_set); |
| do_sigprocmask(SIG_SETMASK, &set, &oset); |
| host_to_target_old_sigset(&target_set, &oset); |
| ret = target_set; |
| } |
| break; |
| #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: |
| ret = -TARGET_EINVAL; |
| goto fail; |
| } |
| mask = arg2; |
| target_to_host_old_sigset(&set, &mask); |
| |
| ret = get_errno(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: |
| ret = -TARGET_EINVAL; |
| goto fail; |
| } |
| if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) |
| goto efault; |
| target_to_host_old_sigset(&set, p); |
| unlock_user(p, arg2, 0); |
| set_ptr = &set; |
| } else { |
| how = 0; |
| set_ptr = NULL; |
| } |
| ret = get_errno(do_sigprocmask(how, set_ptr, &oldset)); |
| if (!is_error(ret) && arg3) { |
| if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) |
| goto efault; |
| host_to_target_old_sigset(p, &oldset); |
| unlock_user(p, arg3, sizeof(target_sigset_t)); |
| } |
| #endif |
| } |
| break; |
| #endif |
| case TARGET_NR_rt_sigprocmask: |
| { |
| int how = arg1; |
| sigset_t set, oldset, *set_ptr; |
| |
| 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: |
| ret = -TARGET_EINVAL; |
| goto fail; |
| } |
| if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) |
| goto efault; |
| target_to_host_sigset(&set, p); |
| unlock_user(p, arg2, 0); |
| set_ptr = &set; |
| } else { |
| how = 0; |
| set_ptr = NULL; |
| } |
| ret = get_errno(do_sigprocmask(how, set_ptr, &oldset)); |
| if (!is_error(ret) && arg3) { |
| if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) |
| goto efault; |
| host_to_target_sigset(p, &oldset); |
| unlock_user(p, arg3, sizeof(target_sigset_t)); |
| } |
| } |
| break; |
| #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))) |
| goto efault; |
| host_to_target_old_sigset(p, &set); |
| unlock_user(p, arg1, sizeof(target_sigset_t)); |
| } |
| } |
| break; |
| #endif |
| case TARGET_NR_rt_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))) |
| goto efault; |
| host_to_target_sigset(p, &set); |
| unlock_user(p, arg1, sizeof(target_sigset_t)); |
| } |
| } |
| break; |
| #ifdef TARGET_NR_sigsuspend |
| case TARGET_NR_sigsuspend: |
| { |
| sigset_t set; |
| #if defined(TARGET_ALPHA) |
| abi_ulong mask = arg1; |
| target_to_host_old_sigset(&set, &mask); |
| #else |
| if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
| goto efault; |
| target_to_host_old_sigset(&set, p); |
| unlock_user(p, arg1, 0); |
| #endif |
| ret = get_errno(sigsuspend(&set)); |
| } |
| break; |
| #endif |
| case TARGET_NR_rt_sigsuspend: |
| { |
| sigset_t set; |
| if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
| goto efault; |
| target_to_host_sigset(&set, p); |
| unlock_user(p, arg1, 0); |
| ret = get_errno(sigsuspend(&set)); |
| } |
| break; |
| case TARGET_NR_rt_sigtimedwait: |
| { |
| sigset_t set; |
| struct timespec uts, *puts; |
| siginfo_t uinfo; |
| |
| if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) |
| goto 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(sigtimedwait(&set, &uinfo, puts)); |
| if (!is_error(ret)) { |
| if (arg2) { |
| p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), |
| 0); |
| if (!p) { |
| goto efault; |
| } |
| host_to_target_siginfo(p, &uinfo); |
| unlock_user(p, arg2, sizeof(target_siginfo_t)); |
| } |
| ret = host_to_target_signal(ret); |
| } |
| } |
| break; |
| case TARGET_NR_rt_sigqueueinfo: |
| { |
| siginfo_t uinfo; |
| if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) |
| goto efault; |
| target_to_host_siginfo(&uinfo, p); |
| unlock_user(p, arg1, 0); |
| ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); |
| } |
| break; |
| #ifdef TARGET_NR_sigreturn |
| case TARGET_NR_sigreturn: |
| /* NOTE: ret is eax, so not transcoding must be done */ |
| ret = do_sigreturn(cpu_env); |
| break; |
| #endif |
| case TARGET_NR_rt_sigreturn: |
| /* NOTE: ret is eax, so not transcoding must be done */ |
| ret = do_rt_sigreturn(cpu_env); |
| break; |
| case TARGET_NR_sethostname: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(sethostname(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| 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)) |
| goto 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); |
| ret = get_errno(setrlimit(resource, &rlim)); |
| } |
| break; |
| 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)) |
| goto 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); |
| } |
| } |
| break; |
| case TARGET_NR_getrusage: |
| { |
| struct rusage rusage; |
| ret = get_errno(getrusage(arg1, &rusage)); |
| if (!is_error(ret)) { |
| ret = host_to_target_rusage(arg2, &rusage); |
| } |
| } |
| break; |
| case TARGET_NR_gettimeofday: |
| { |
| struct timeval tv; |
| ret = get_errno(gettimeofday(&tv, NULL)); |
| if (!is_error(ret)) { |
| if (copy_to_user_timeval(arg1, &tv)) |
| goto efault; |
| } |
| } |
| break; |
| case TARGET_NR_settimeofday: |
| { |
| struct timeval tv; |
| if (copy_from_user_timeval(&tv, arg1)) |
| goto efault; |
| ret = get_errno(settimeofday(&tv, NULL)); |
| } |
| break; |
| #if defined(TARGET_NR_select) |
| case TARGET_NR_select: |
| #if defined(TARGET_S390X) || defined(TARGET_ALPHA) |
| ret = do_select(arg1, arg2, arg3, arg4, arg5); |
| #else |
| { |
| struct target_sel_arg_struct *sel; |
| abi_ulong inp, outp, exp, tvp; |
| long nsel; |
| |
| if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) |
| goto 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); |
| ret = do_select(nsel, inp, outp, exp, tvp); |
| } |
| #endif |
| break; |
| #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) { |
| goto fail; |
| } |
| ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); |
| if (ret) { |
| goto fail; |
| } |
| ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); |
| if (ret) { |
| goto fail; |
| } |
| |
| /* |
| * 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)) { |
| goto efault; |
| } |
| ts_ptr = &ts; |
| } else { |
| ts_ptr = NULL; |
| } |
| |
| /* Extract the two packed args for the sigset */ |
| if (arg6) { |
| sig_ptr = &sig; |
| sig.size = _NSIG / 8; |
| |
| arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1); |
| if (!arg7) { |
| goto 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 */ |
| ret = -TARGET_EINVAL; |
| goto fail; |
| } |
| target_sigset = lock_user(VERIFY_READ, arg_sigset, |
| sizeof(*target_sigset), 1); |
| if (!target_sigset) { |
| goto 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(sys_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)) |
| goto efault; |
| if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) |
| goto efault; |
| if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) |
| goto efault; |
| |
| if (ts_addr && host_to_target_timespec(ts_addr, &ts)) |
| goto efault; |
| } |
| } |
| break; |
| #endif |
| 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); |
| } |
| break; |
| #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); |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_oldlstat |
| case TARGET_NR_oldlstat: |
| goto unimplemented; |
| #endif |
| 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 (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, arg3, "%s", real); |
| } else { |
| ret = get_errno(readlink(path(p), p2, arg3)); |
| } |
| unlock_user(p2, arg2, ret); |
| unlock_user(p, arg1, 0); |
| } |
| break; |
| #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); |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_uselib |
| case TARGET_NR_uselib: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_swapon |
| case TARGET_NR_swapon: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(swapon(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| #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) { |
| goto efault; |
| } |
| ret = get_errno(reboot(arg1, arg2, arg3, p)); |
| unlock_user(p, arg4, 0); |
| } else { |
| ret = get_errno(reboot(arg1, arg2, arg3, NULL)); |
| } |
| break; |
| #ifdef TARGET_NR_readdir |
| case TARGET_NR_readdir: |
| goto unimplemented; |
| #endif |
| #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))) |
| goto 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 |
| break; |
| #endif |
| #ifdef TARGET_NR_mmap2 |
| case TARGET_NR_mmap2: |
| #ifndef MMAP_SHIFT |
| #define MMAP_SHIFT 12 |
| #endif |
| ret = get_errno(target_mmap(arg1, arg2, arg3, |
| target_to_host_bitmask(arg4, mmap_flags_tbl), |
| arg5, |
| arg6 << MMAP_SHIFT)); |
| break; |
| #endif |
| case TARGET_NR_munmap: |
| ret = get_errno(target_munmap(arg1, arg2)); |
| break; |
| 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; |
| } |
| } |
| ret = get_errno(target_mprotect(arg1, arg2, arg3)); |
| break; |
| #ifdef TARGET_NR_mremap |
| case TARGET_NR_mremap: |
| ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); |
| break; |
| #endif |
| /* ??? msync/mlock/munlock are broken for softmmu. */ |
| #ifdef TARGET_NR_msync |
| case TARGET_NR_msync: |
| ret = get_errno(msync(g2h(arg1), arg2, arg3)); |
| break; |
| #endif |
| #ifdef TARGET_NR_mlock |
| case TARGET_NR_mlock: |
| ret = get_errno(mlock(g2h(arg1), arg2)); |
| break; |
| #endif |
| #ifdef TARGET_NR_munlock |
| case TARGET_NR_munlock: |
| ret = get_errno(munlock(g2h(arg1), arg2)); |
| break; |
| #endif |
| #ifdef TARGET_NR_mlockall |
| case TARGET_NR_mlockall: |
| ret = get_errno(mlockall(arg1)); |
| break; |
| #endif |
| #ifdef TARGET_NR_munlockall |
| case TARGET_NR_munlockall: |
| ret = get_errno(munlockall()); |
| break; |
| #endif |
| case TARGET_NR_truncate: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(truncate(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| case TARGET_NR_ftruncate: |
| ret = get_errno(ftruncate(arg1, arg2)); |
| break; |
| case TARGET_NR_fchmod: |
| ret = get_errno(fchmod(arg1, arg2)); |
| break; |
| #if defined(TARGET_NR_fchmodat) |
| case TARGET_NR_fchmodat: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(fchmodat(arg1, p, arg3, 0)); |
| unlock_user(p, arg2, 0); |
| break; |
| #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) { |
| ret = -host_to_target_errno(errno); |
| break; |
| } |
| #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 |
| break; |
| case TARGET_NR_setpriority: |
| ret = get_errno(setpriority(arg1, arg2, arg3)); |
| break; |
| #ifdef TARGET_NR_profil |
| case TARGET_NR_profil: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_statfs: |
| if (!(p = lock_user_string(arg1))) |
| goto 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)) |
| goto 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, arg2, 1); |
| } |
| break; |
| case TARGET_NR_fstatfs: |
| ret = get_errno(fstatfs(arg1, &stfs)); |
| goto convert_statfs; |
| #ifdef TARGET_NR_statfs64 |
| case TARGET_NR_statfs64: |
| if (!(p = lock_user_string(arg1))) |
| goto 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)) |
| goto 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); |
| } |
| break; |
| case TARGET_NR_fstatfs64: |
| ret = get_errno(fstatfs(arg1, &stfs)); |
| goto convert_statfs64; |
| #endif |
| #ifdef TARGET_NR_ioperm |
| case TARGET_NR_ioperm: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_socketcall |
| case TARGET_NR_socketcall: |
| ret = do_socketcall(arg1, arg2); |
| break; |
| #endif |
| #ifdef TARGET_NR_accept |
| case TARGET_NR_accept: |
| ret = do_accept4(arg1, arg2, arg3, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_accept4 |
| case TARGET_NR_accept4: |
| #ifdef CONFIG_ACCEPT4 |
| ret = do_accept4(arg1, arg2, arg3, arg4); |
| #else |
| goto unimplemented; |
| #endif |
| break; |
| #endif |
| #ifdef TARGET_NR_bind |
| case TARGET_NR_bind: |
| ret = do_bind(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_connect |
| case TARGET_NR_connect: |
| ret = do_connect(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_getpeername |
| case TARGET_NR_getpeername: |
| ret = do_getpeername(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_getsockname |
| case TARGET_NR_getsockname: |
| ret = do_getsockname(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_getsockopt |
| case TARGET_NR_getsockopt: |
| ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); |
| break; |
| #endif |
| #ifdef TARGET_NR_listen |
| case TARGET_NR_listen: |
| ret = get_errno(listen(arg1, arg2)); |
| break; |
| #endif |
| #ifdef TARGET_NR_recv |
| case TARGET_NR_recv: |
| ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_recvfrom |
| case TARGET_NR_recvfrom: |
| ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); |
| break; |
| #endif |
| #ifdef TARGET_NR_recvmsg |
| case TARGET_NR_recvmsg: |
| ret = do_sendrecvmsg(arg1, arg2, arg3, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_send |
| case TARGET_NR_send: |
| ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_sendmsg |
| case TARGET_NR_sendmsg: |
| ret = do_sendrecvmsg(arg1, arg2, arg3, 1); |
| break; |
| #endif |
| #ifdef TARGET_NR_sendmmsg |
| case TARGET_NR_sendmmsg: |
| ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1); |
| break; |
| case TARGET_NR_recvmmsg: |
| ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_sendto |
| case TARGET_NR_sendto: |
| ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); |
| break; |
| #endif |
| #ifdef TARGET_NR_shutdown |
| case TARGET_NR_shutdown: |
| ret = get_errno(shutdown(arg1, arg2)); |
| break; |
| #endif |
| #ifdef TARGET_NR_socket |
| case TARGET_NR_socket: |
| ret = do_socket(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_socketpair |
| case TARGET_NR_socketpair: |
| ret = do_socketpair(arg1, arg2, arg3, arg4); |
| break; |
| #endif |
| #ifdef TARGET_NR_setsockopt |
| case TARGET_NR_setsockopt: |
| ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); |
| break; |
| #endif |
| |
| case TARGET_NR_syslog: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); |
| unlock_user(p, arg2, 0); |
| break; |
| |
| 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))) |
| goto 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)) |
| goto efault; |
| } |
| } |
| break; |
| 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)) |
| goto efault; |
| } |
| } |
| break; |
| case TARGET_NR_stat: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(stat(path(p), &st)); |
| unlock_user(p, arg1, 0); |
| goto do_stat; |
| case TARGET_NR_lstat: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(lstat(path(p), &st)); |
| unlock_user(p, arg1, 0); |
| goto do_stat; |
| case TARGET_NR_fstat: |
| { |
| ret = get_errno(fstat(arg1, &st)); |
| do_stat: |
| if (!is_error(ret)) { |
| struct target_stat *target_st; |
| |
| if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) |
| goto 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); |
| unlock_user_struct(target_st, arg2, 1); |
| } |
| } |
| break; |
| #ifdef TARGET_NR_olduname |
| case TARGET_NR_olduname: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_iopl |
| case TARGET_NR_iopl: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_vhangup: |
| ret = get_errno(vhangup()); |
| break; |
| #ifdef TARGET_NR_idle |
| case TARGET_NR_idle: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_syscall |
| case TARGET_NR_syscall: |
| ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5, |
| arg6, arg7, arg8, 0); |
| break; |
| #endif |
| 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(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)) |
| goto efault; |
| } |
| if (target_rusage) { |
| rusage_err = host_to_target_rusage(target_rusage, &rusage); |
| if (rusage_err) { |
| ret = rusage_err; |
| } |
| } |
| } |
| } |
| break; |
| #ifdef TARGET_NR_swapoff |
| case TARGET_NR_swapoff: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(swapoff(p)); |
| unlock_user(p, arg1, 0); |
| break; |
| #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)) |
| goto 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); |
| } |
| } |
| break; |
| #ifdef TARGET_NR_ipc |
| case TARGET_NR_ipc: |
| ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); |
| break; |
| #endif |
| #ifdef TARGET_NR_semget |
| case TARGET_NR_semget: |
| ret = get_errno(semget(arg1, arg2, arg3)); |
| break; |
| #endif |
| #ifdef TARGET_NR_semop |
| case TARGET_NR_semop: |
| ret = do_semop(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_semctl |
| case TARGET_NR_semctl: |
| ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4); |
| break; |
| #endif |
| #ifdef TARGET_NR_msgctl |
| case TARGET_NR_msgctl: |
| ret = do_msgctl(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_msgget |
| case TARGET_NR_msgget: |
| ret = get_errno(msgget(arg1, arg2)); |
| break; |
| #endif |
| #ifdef TARGET_NR_msgrcv |
| case TARGET_NR_msgrcv: |
| ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5); |
| break; |
| #endif |
| #ifdef TARGET_NR_msgsnd |
| case TARGET_NR_msgsnd: |
| ret = do_msgsnd(arg1, arg2, arg3, arg4); |
| break; |
| #endif |
| #ifdef TARGET_NR_shmget |
| case TARGET_NR_shmget: |
| ret = get_errno(shmget(arg1, arg2, arg3)); |
| break; |
| #endif |
| #ifdef TARGET_NR_shmctl |
| case TARGET_NR_shmctl: |
| ret = do_shmctl(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_shmat |
| case TARGET_NR_shmat: |
| ret = do_shmat(arg1, arg2, arg3); |
| break; |
| #endif |
| #ifdef TARGET_NR_shmdt |
| case TARGET_NR_shmdt: |
| ret = do_shmdt(arg1); |
| break; |
| #endif |
| case TARGET_NR_fsync: |
| ret = get_errno(fsync(arg1)); |
| break; |
| 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 |
| break; |
| #ifdef __NR_exit_group |
| /* new thread calls */ |
| case TARGET_NR_exit_group: |
| #ifdef TARGET_GPROF |
| _mcleanup(); |
| #endif |
| gdb_exit(cpu_env, arg1); |
| ret = get_errno(exit_group(arg1)); |
| break; |
| #endif |
| case TARGET_NR_setdomainname: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(setdomainname(p, arg2)); |
| unlock_user(p, arg1, 0); |
| break; |
| 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)) |
| goto efault; |
| ret = get_errno(sys_uname(buf)); |
| if (!is_error(ret)) { |
| /* Overrite the native machine name with whatever is being |
| emulated. */ |
| strcpy (buf->machine, cpu_to_uname_machine(cpu_env)); |
| /* Allow the user to override the reported release. */ |
| if (qemu_uname_release && *qemu_uname_release) |
| strcpy (buf->release, qemu_uname_release); |
| } |
| unlock_user_struct(buf, arg1, 1); |
| } |
| break; |
| #ifdef TARGET_I386 |
| case TARGET_NR_modify_ldt: |
| ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); |
| break; |
| #if !defined(TARGET_X86_64) |
| case TARGET_NR_vm86old: |
| goto unimplemented; |
| case TARGET_NR_vm86: |
| ret = do_vm86(cpu_env, arg1, arg2); |
| break; |
| #endif |
| #endif |
| case TARGET_NR_adjtimex: |
| goto unimplemented; |
| #ifdef TARGET_NR_create_module |
| case TARGET_NR_create_module: |
| #endif |
| case TARGET_NR_init_module: |
| case TARGET_NR_delete_module: |
| #ifdef TARGET_NR_get_kernel_syms |
| case TARGET_NR_get_kernel_syms: |
| #endif |
| goto unimplemented; |
| case TARGET_NR_quotactl: |
| goto unimplemented; |
| case TARGET_NR_getpgid: |
| ret = get_errno(getpgid(arg1)); |
| break; |
| case TARGET_NR_fchdir: |
| ret = get_errno(fchdir(arg1)); |
| break; |
| #ifdef TARGET_NR_bdflush /* not on x86_64 */ |
| case TARGET_NR_bdflush: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_sysfs |
| case TARGET_NR_sysfs: |
| goto unimplemented; |
| #endif |
| case TARGET_NR_personality: |
| ret = get_errno(personality(arg1)); |
| break; |
| #ifdef TARGET_NR_afs_syscall |
| case TARGET_NR_afs_syscall: |
| goto unimplemented; |
| #endif |
| #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) | 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)) { |
| goto efault; |
| } |
| } |
| break; |
| #endif |
| case TARGET_NR_getdents: |
| #ifdef __NR_getdents |
| #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 |
| { |
| struct target_dirent *target_dirp; |
| struct linux_dirent *dirp; |
| abi_long count = arg3; |
| |
| dirp = malloc(count); |
| if (!dirp) { |
| ret = -TARGET_ENOMEM; |
| goto fail; |
| } |
| |
| 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))) |
| goto 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); |
| } |
| free(dirp); |
| } |
| #else |
| { |
| struct linux_dirent *dirp; |
| abi_long count = arg3; |
| |
| if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) |
| goto 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) { |
| goto 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 |
| break; |
| #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))) |
| goto 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); |
| } |
| break; |
| #endif /* TARGET_NR_getdents64 */ |
| #if defined(TARGET_NR__newselect) |
| case TARGET_NR__newselect: |
| ret = do_select(arg1, arg2, arg3, arg4, arg5); |
| break; |
| #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; |
| int timeout = arg3; |
| struct pollfd *pfd; |
| unsigned int i; |
| |
| target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); |
| if (!target_pfd) |
| goto 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); |
| } |
| |
| # ifdef TARGET_NR_ppoll |
| if (num == 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); |
| goto efault; |
| } |
| } else { |
| timeout_ts = NULL; |
| } |
| |
| if (arg4) { |
| target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1); |
| if (!target_set) { |
| unlock_user(target_pfd, arg1, 0); |
| goto efault; |
| } |
| target_to_host_sigset(set, target_set); |
| } else { |
| set = NULL; |
| } |
| |
| ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8)); |
| |
| if (!is_error(ret) && arg3) { |
| host_to_target_timespec(arg3, timeout_ts); |
| } |
| if (arg4) { |
| unlock_user(target_set, arg4, 0); |
| } |
| } else |
| # endif |
| ret = get_errno(poll(pfd, nfds, timeout)); |
| |
| 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); |
| } |
| break; |
| #endif |
| case TARGET_NR_flock: |
| /* NOTE: the flock constant seems to be the same for every |
| Linux platform */ |
| ret = get_errno(flock(arg1, arg2)); |
| break; |
| case TARGET_NR_readv: |
| { |
| struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0); |
| if (vec != NULL) { |
| ret = get_errno(readv(arg1, vec, arg3)); |
| unlock_iovec(vec, arg2, arg3, 1); |
| } else { |
| ret = -host_to_target_errno(errno); |
| } |
| } |
| break; |
| case TARGET_NR_writev: |
| { |
| struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); |
| if (vec != NULL) { |
| ret = get_errno(writev(arg1, vec, arg3)); |
| unlock_iovec(vec, arg2, arg3, 0); |
| } else { |
| ret = -host_to_target_errno(errno); |
| } |
| } |
| break; |
| case TARGET_NR_getsid: |
| ret = get_errno(getsid(arg1)); |
| break; |
| #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ |
| case TARGET_NR_fdatasync: |
| ret = get_errno(fdatasync(arg1)); |
| break; |
| #endif |
| case TARGET_NR__sysctl: |
| /* We don't implement this, but ENOTDIR is always a safe |
| return value. */ |
| ret = -TARGET_ENOTDIR; |
| break; |
| 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)) { |
| ret = -TARGET_EINVAL; |
| break; |
| } |
| mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); |
| |
| mask = alloca(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) { |
| ret = -TARGET_EINVAL; |
| break; |
| } |
| ret = arg2; |
| } |
| |
| if (copy_to_user(arg3, mask, ret)) { |
| goto efault; |
| } |
| } |
| } |
| break; |
| 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)) { |
| ret = -TARGET_EINVAL; |
| break; |
| } |
| mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); |
| |
| mask = alloca(mask_size); |
| if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) { |
| goto efault; |
| } |
| memcpy(mask, p, arg2); |
| unlock_user_struct(p, arg2, 0); |
| |
| ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask)); |
| } |
| break; |
| case TARGET_NR_sched_setparam: |
| { |
| struct sched_param *target_schp; |
| struct sched_param schp; |
| |
| if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) |
| goto efault; |
| schp.sched_priority = tswap32(target_schp->sched_priority); |
| unlock_user_struct(target_schp, arg2, 0); |
| ret = get_errno(sched_setparam(arg1, &schp)); |
| } |
| break; |
| case TARGET_NR_sched_getparam: |
| { |
| struct sched_param *target_schp; |
| struct sched_param schp; |
| ret = get_errno(sched_getparam(arg1, &schp)); |
| if (!is_error(ret)) { |
| if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) |
| goto efault; |
| target_schp->sched_priority = tswap32(schp.sched_priority); |
| unlock_user_struct(target_schp, arg2, 1); |
| } |
| } |
| break; |
| case TARGET_NR_sched_setscheduler: |
| { |
| struct sched_param *target_schp; |
| struct sched_param schp; |
| if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) |
| goto efault; |
| schp.sched_priority = tswap32(target_schp->sched_priority); |
| unlock_user_struct(target_schp, arg3, 0); |
| ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); |
| } |
| break; |
| case TARGET_NR_sched_getscheduler: |
| ret = get_errno(sched_getscheduler(arg1)); |
| break; |
| case TARGET_NR_sched_yield: |
| ret = get_errno(sched_yield()); |
| break; |
| case TARGET_NR_sched_get_priority_max: |
| ret = get_errno(sched_get_priority_max(arg1)); |
| break; |
| case TARGET_NR_sched_get_priority_min: |
| ret = get_errno(sched_get_priority_min(arg1)); |
| break; |
| case TARGET_NR_sched_rr_get_interval: |
| { |
| struct timespec ts; |
| ret = get_errno(sched_rr_get_interval(arg1, &ts)); |
| if (!is_error(ret)) { |
| host_to_target_timespec(arg2, &ts); |
| } |
| } |
| break; |
| case TARGET_NR_nanosleep: |
| { |
| struct timespec req, rem; |
| target_to_host_timespec(&req, arg1); |
| ret = get_errno(nanosleep(&req, &rem)); |
| if (is_error(ret) && arg2) { |
| host_to_target_timespec(arg2, &rem); |
| } |
| } |
| break; |
| #ifdef TARGET_NR_query_module |
| case TARGET_NR_query_module: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_nfsservctl |
| case TARGET_NR_nfsservctl: |
| goto unimplemented; |
| #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)) { |
| goto efault; |
| } |
| break; |
| } |
| #ifdef PR_GET_NAME |
| case PR_GET_NAME: |
| { |
| void *name = lock_user(VERIFY_WRITE, arg2, 16, 1); |
| if (!name) { |
| goto efault; |
| } |
| ret = get_errno(prctl(arg1, (unsigned long)name, |
| arg3, arg4, arg5)); |
| unlock_user(name, arg2, 16); |
| break; |
| } |
| case PR_SET_NAME: |
| { |
| void *name = lock_user(VERIFY_READ, arg2, 16, 1); |
| if (!name) { |
| goto efault; |
| } |
| ret = get_errno(prctl(arg1, (unsigned long)name, |
| arg3, arg4, arg5)); |
| unlock_user(name, arg2, 0); |
| break; |
| } |
| #endif |
| default: |
| /* Most prctl options have no pointer arguments */ |
| ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); |
| break; |
| } |
| break; |
| #ifdef TARGET_NR_arch_prctl |
| case TARGET_NR_arch_prctl: |
| #if defined(TARGET_I386) && !defined(TARGET_ABI32) |
| ret = do_arch_prctl(cpu_env, arg1, arg2); |
| break; |
| #else |
| goto unimplemented; |
| #endif |
| #endif |
| #ifdef TARGET_NR_pread64 |
| case TARGET_NR_pread64: |
| if (regpairs_aligned(cpu_env)) { |
| arg4 = arg5; |
| arg5 = arg6; |
| } |
| if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) |
| goto efault; |
| ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); |
| unlock_user(p, arg2, ret); |
| break; |
| case TARGET_NR_pwrite64: |
| if (regpairs_aligned(cpu_env)) { |
| arg4 = arg5; |
| arg5 = arg6; |
| } |
| if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) |
| goto efault; |
| ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); |
| unlock_user(p, arg2, 0); |
| break; |
| #endif |
| case TARGET_NR_getcwd: |
| if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) |
| goto efault; |
| ret = get_errno(sys_getcwd1(p, arg2)); |
| unlock_user(p, arg1, ret); |
| break; |
| 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)) { |
| goto 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); |
| goto 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); |
| } |
| } |
| break; |
| } |
| case TARGET_NR_sigaltstack: |
| #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ |
| defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \ |
| defined(TARGET_M68K) || defined(TARGET_S390X) || defined(TARGET_OPENRISC) |
| ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env)); |
| break; |
| #else |
| goto unimplemented; |
| #endif |
| |
| #ifdef CONFIG_SENDFILE |
| case TARGET_NR_sendfile: |
| { |
| off_t *offp = NULL; |
| off_t off; |
| if (arg3) { |
| ret = get_user_sal(off, arg3); |
| if (is_error(ret)) { |
| break; |
| } |
| 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; |
| } |
| } |
| break; |
| } |
| #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)) { |
| break; |
| } |
| 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; |
| } |
| } |
| break; |
| } |
| #endif |
| #else |
| case TARGET_NR_sendfile: |
| #ifdef TARGET_NR_sendfile64 |
| case TARGET_NR_sendfile64: |
| #endif |
| goto unimplemented; |
| #endif |
| |
| #ifdef TARGET_NR_getpmsg |
| case TARGET_NR_getpmsg: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_putpmsg |
| case TARGET_NR_putpmsg: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_vfork |
| case TARGET_NR_vfork: |
| ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, |
| 0, 0, 0, 0)); |
| break; |
| #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)) |
| goto 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); |
| } |
| break; |
| } |
| #endif |
| #ifdef TARGET_NR_truncate64 |
| case TARGET_NR_truncate64: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); |
| unlock_user(p, arg1, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_ftruncate64 |
| case TARGET_NR_ftruncate64: |
| ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); |
| break; |
| #endif |
| #ifdef TARGET_NR_stat64 |
| case TARGET_NR_stat64: |
| if (!(p = lock_user_string(arg1))) |
| goto 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); |
| break; |
| #endif |
| #ifdef TARGET_NR_lstat64 |
| case TARGET_NR_lstat64: |
| if (!(p = lock_user_string(arg1))) |
| goto 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); |
| break; |
| #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); |
| break; |
| #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))) |
| goto efault; |
| ret = get_errno(fstatat(arg1, path(p), &st, arg4)); |
| if (!is_error(ret)) |
| ret = host_to_target_stat64(cpu_env, arg3, &st); |
| break; |
| #endif |
| case TARGET_NR_lchown: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); |
| unlock_user(p, arg1, 0); |
| break; |
| #ifdef TARGET_NR_getuid |
| case TARGET_NR_getuid: |
| ret = get_errno(high2lowuid(getuid())); |
| break; |
| #endif |
| #ifdef TARGET_NR_getgid |
| case TARGET_NR_getgid: |
| ret = get_errno(high2lowgid(getgid())); |
| break; |
| #endif |
| #ifdef TARGET_NR_geteuid |
| case TARGET_NR_geteuid: |
| ret = get_errno(high2lowuid(geteuid())); |
| break; |
| #endif |
| #ifdef TARGET_NR_getegid |
| case TARGET_NR_getegid: |
| ret = get_errno(high2lowgid(getegid())); |
| break; |
| #endif |
| case TARGET_NR_setreuid: |
| ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); |
| break; |
| case TARGET_NR_setregid: |
| ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); |
| break; |
| 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) |
| break; |
| if (!is_error(ret)) { |
| target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0); |
| if (!target_grouplist) |
| goto efault; |
| for(i = 0;i < ret; i++) |
| target_grouplist[i] = tswapid(high2lowgid(grouplist[i])); |
| unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id)); |
| } |
| } |
| break; |
| 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) { |
| ret = -TARGET_EFAULT; |
| goto fail; |
| } |
| for (i = 0; i < gidsetsize; i++) { |
| grouplist[i] = low2highgid(tswapid(target_grouplist[i])); |
| } |
| unlock_user(target_grouplist, arg2, 0); |
| } |
| ret = get_errno(setgroups(gidsetsize, grouplist)); |
| } |
| break; |
| case TARGET_NR_fchown: |
| ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); |
| break; |
| #if defined(TARGET_NR_fchownat) |
| case TARGET_NR_fchownat: |
| if (!(p = lock_user_string(arg2))) |
| goto efault; |
| ret = get_errno(fchownat(arg1, p, low2highuid(arg3), |
| low2highgid(arg4), arg5)); |
| unlock_user(p, arg2, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_setresuid |
| case TARGET_NR_setresuid: |
| ret = get_errno(setresuid(low2highuid(arg1), |
| low2highuid(arg2), |
| low2highuid(arg3))); |
| break; |
| #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)) |
| goto efault; |
| } |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_getresgid |
| case TARGET_NR_setresgid: |
| ret = get_errno(setresgid(low2highgid(arg1), |
| low2highgid(arg2), |
| low2highgid(arg3))); |
| break; |
| #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)) |
| goto efault; |
| } |
| } |
| break; |
| #endif |
| case TARGET_NR_chown: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); |
| unlock_user(p, arg1, 0); |
| break; |
| case TARGET_NR_setuid: |
| ret = get_errno(setuid(low2highuid(arg1))); |
| break; |
| case TARGET_NR_setgid: |
| ret = get_errno(setgid(low2highgid(arg1))); |
| break; |
| case TARGET_NR_setfsuid: |
| ret = get_errno(setfsuid(arg1)); |
| break; |
| case TARGET_NR_setfsgid: |
| ret = get_errno(setfsgid(arg1)); |
| break; |
| |
| #ifdef TARGET_NR_lchown32 |
| case TARGET_NR_lchown32: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(lchown(p, arg2, arg3)); |
| unlock_user(p, arg1, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_getuid32 |
| case TARGET_NR_getuid32: |
| ret = get_errno(getuid()); |
| break; |
| #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; |
| } |
| ret = get_errno(getuid()); |
| break; |
| #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; |
| } |
| ret = get_errno(getgid()); |
| break; |
| #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 swcr, fpcr = cpu_alpha_load_fpcr (cpu_env); |
| |
| /* Copied from linux ieee_fpcr_to_swcr. */ |
| swcr = (fpcr >> 35) & SWCR_STATUS_MASK; |
| swcr |= (fpcr >> 36) & SWCR_MAP_DMZ; |
| swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV |
| | SWCR_TRAP_ENABLE_DZE |
| | SWCR_TRAP_ENABLE_OVF); |
| swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF |
| | SWCR_TRAP_ENABLE_INE); |
| swcr |= (fpcr >> 47) & SWCR_MAP_UMZ; |
| swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO; |
| |
| if (put_user_u64 (swcr, arg2)) |
| goto 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. |
| */ |
| } |
| break; |
| #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, orig_fpcr; |
| |
| if (get_user_u64 (swcr, arg2)) { |
| goto efault; |
| } |
| orig_fpcr = cpu_alpha_load_fpcr(cpu_env); |
| fpcr = orig_fpcr & FPCR_DYN_MASK; |
| |
| /* Copied from linux ieee_swcr_to_fpcr. */ |
| fpcr |= (swcr & SWCR_STATUS_MASK) << 35; |
| fpcr |= (swcr & SWCR_MAP_DMZ) << 36; |
| fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV |
| | SWCR_TRAP_ENABLE_DZE |
| | SWCR_TRAP_ENABLE_OVF)) << 48; |
| fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF |
| | SWCR_TRAP_ENABLE_INE)) << 57; |
| fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0); |
| fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41; |
| |
| cpu_alpha_store_fpcr(cpu_env, fpcr); |
| ret = 0; |
| } |
| break; |
| |
| case TARGET_SSI_IEEE_RAISE_EXCEPTION: |
| { |
| uint64_t exc, fpcr, orig_fpcr; |
| int si_code; |
| |
| if (get_user_u64(exc, arg2)) { |
| goto efault; |
| } |
| |
| orig_fpcr = cpu_alpha_load_fpcr(cpu_env); |
| |
| /* We only add to the exception status here. */ |
| fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35); |
| |
| cpu_alpha_store_fpcr(cpu_env, fpcr); |
| ret = 0; |
| |
| /* Old exceptions are not signaled. */ |
| fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK); |
| |
| /* If any exceptions set by this call, |
| and are unmasked, send a signal. */ |
| si_code = 0; |
| if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) { |
| si_code = TARGET_FPE_FLTRES; |
| } |
| if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) { |
| si_code = TARGET_FPE_FLTUND; |
| } |
| if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) { |
| si_code = TARGET_FPE_FLTOVF; |
| } |
| if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) { |
| si_code = TARGET_FPE_FLTDIV; |
| } |
| if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) { |
| si_code = TARGET_FPE_FLTINV; |
| } |
| if (si_code != 0) { |
| target_siginfo_t info; |
| 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, &info); |
| } |
| } |
| 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 |
| */ |
| } |
| break; |
| #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: |
| ret = -TARGET_EINVAL; |
| goto fail; |
| } |
| mask = arg2; |
| target_to_host_old_sigset(&set, &mask); |
| do_sigprocmask(how, &set, &oldset); |
| host_to_target_old_sigset(&mask, &oldset); |
| ret = mask; |
| } |
| break; |
| #endif |
| |
| #ifdef TARGET_NR_getgid32 |
| case TARGET_NR_getgid32: |
| ret = get_errno(getgid()); |
| break; |
| #endif |
| #ifdef TARGET_NR_geteuid32 |
| case TARGET_NR_geteuid32: |
| ret = get_errno(geteuid()); |
| break; |
| #endif |
| #ifdef TARGET_NR_getegid32 |
| case TARGET_NR_getegid32: |
| ret = get_errno(getegid()); |
| break; |
| #endif |
| #ifdef TARGET_NR_setreuid32 |
| case TARGET_NR_setreuid32: |
| ret = get_errno(setreuid(arg1, arg2)); |
| break; |
| #endif |
| #ifdef TARGET_NR_setregid32 |
| case TARGET_NR_setregid32: |
| ret = get_errno(setregid(arg1, arg2)); |
| break; |
| #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) |
| break; |
| if (!is_error(ret)) { |
| target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); |
| if (!target_grouplist) { |
| ret = -TARGET_EFAULT; |
| goto fail; |
| } |
| for(i = 0;i < ret; i++) |
| target_grouplist[i] = tswap32(grouplist[i]); |
| unlock_user(target_grouplist, arg2, gidsetsize * 4); |
| } |
| } |
| break; |
| #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) { |
| ret = -TARGET_EFAULT; |
| goto fail; |
| } |
| for(i = 0;i < gidsetsize; i++) |
| grouplist[i] = tswap32(target_grouplist[i]); |
| unlock_user(target_grouplist, arg2, 0); |
| ret = get_errno(setgroups(gidsetsize, grouplist)); |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_fchown32 |
| case TARGET_NR_fchown32: |
| ret = get_errno(fchown(arg1, arg2, arg3)); |
| break; |
| #endif |
| #ifdef TARGET_NR_setresuid32 |
| case TARGET_NR_setresuid32: |
| ret = get_errno(setresuid(arg1, arg2, arg3)); |
| break; |
| #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)) |
| goto efault; |
| } |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_setresgid32 |
| case TARGET_NR_setresgid32: |
| ret = get_errno(setresgid(arg1, arg2, arg3)); |
| break; |
| #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)) |
| goto efault; |
| } |
| } |
| break; |
| #endif |
| #ifdef TARGET_NR_chown32 |
| case TARGET_NR_chown32: |
| if (!(p = lock_user_string(arg1))) |
| goto efault; |
| ret = get_errno(chown(p, arg2, arg3)); |
| unlock_user(p, arg1, 0); |
| break; |
| #endif |
| #ifdef TARGET_NR_setuid32 |
| case TARGET_NR_setuid32: |
| ret = get_errno(setuid(arg1)); |
| break; |
| #endif |
| #ifdef TARGET_NR_setgid32 |
| case TARGET_NR_setgid32: |
| ret = get_errno(setgid(arg1)); |
| break; |
| #endif |
| #ifdef TARGET_NR_setfsuid32 |
| case TARGET_NR_setfsuid32: |
| ret = get_errno(setfsuid(arg1)); |
| break; |
| #endif |
| #ifdef TARGET_NR_setfsgid32 |
| case TARGET_NR_setfsgid32: |
| ret = get_errno(setfsgid(arg1)); |
| break; |
| #endif |
| |
| case TARGET_NR_pivot_root: |
| goto unimplemented; |
| #ifdef TARGET_NR_mincore |
| case TARGET_NR_mincore: |
| { |
| void *a; |
| ret = -TARGET_EFAULT; |
| if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0))) |
| goto efault; |
| if (!(p = lock_user_string(arg3))) |
| goto mincore_fail; |
| ret = get_errno(mincore(a, arg2, p)); |
| unlock_user(p, arg3, ret); |
| mincore_fail: |
| unlock_user(a, arg1, 0); |
| } |
| break; |
| #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 |
| */ |
| abi_long temp; |
| temp = arg3; |
| arg3 = arg4; |
| arg4 = temp; |
| } |
| #endif |
| #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_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 |
| ret = -posix_fadvise(arg1, arg2, arg3, arg4); |
| break; |
| #endif |
| #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. */ |
| ret = get_errno(0); |
| break; |
| #endif |
| #if TARGET_ABI_BITS == 32 |
| case TARGET_NR_fcntl64: |
| { |
| int cmd; |
| struct flock64 fl; |
| struct target_flock64 *target_fl; |
| #ifdef TARGET_ARM |
| struct target_eabi_flock64 *target_efl; |
| #endif |
| |
| cmd = target_to_host_fcntl_cmd(arg2); |
| if (cmd == -TARGET_EINVAL) { |
| ret = cmd; |
| break; |
| } |
| |
| switch(arg2) { |
| case TARGET_F_GETLK64: |
| #ifdef TARGET_ARM |
| if (((CPUARMState *)cpu_env)->eabi) { |
| if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) |
| goto efault; |
| fl.l_type = tswap16(target_efl->l_type); |
| fl.l_whence = tswap16(target_efl->l_whence); |
| fl.l_start = tswap64(target_efl->l_start); |
| fl.l_len = tswap64(target_efl->l_len); |
| fl.l_pid = tswap32(target_efl->l_pid); |
| unlock_user_struct(target_efl, arg3, 0); |
| } else |
| #endif |
| { |
| if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) |
| goto efault; |
| fl.l_type = tswap16(target_fl->l_type); |
| fl.l_whence = tswap16(target_fl->l_whence); |
| fl.l_start = tswap64(target_fl->l_start); |
| fl.l_len = tswap64(target_fl->l_len); |
| fl.l_pid = tswap32(target_fl->l_pid); |
| unlock_user_struct(target_fl, arg3, 0); |
| } |
| ret = get_errno(fcntl(arg1, cmd, &fl)); |
| if (ret == 0) { |
| #ifdef TARGET_ARM |
| if (((CPUARMState *)cpu_env)->eabi) { |
| if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) |
| goto efault; |
| target_efl->l_type = tswap16(fl.l_type); |
| target_efl->l_whence = tswap16(fl.l_whence); |
| target_efl->l_start = tswap64(fl.l_start); |
| target_efl->l_len = tswap64(fl.l_len); |
| target_efl->l_pid = tswap32(fl.l_pid); |
| unlock_user_struct(target_efl, arg3, 1); |
| } else |
| #endif |
| { |
| if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) |
| goto efault; |
| target_fl->l_type = tswap16(fl.l_type); |
| target_fl->l_whence = tswap16(fl.l_whence); |
| target_fl->l_start = tswap64(fl.l_start); |
| target_fl->l_len = tswap64(fl.l_len); |
| target_fl->l_pid = tswap32(fl.l_pid); |
| unlock_user_struct(target_fl, arg3, 1); |
| } |
| } |
| break; |
| |
| case TARGET_F_SETLK64: |
| case TARGET_F_SETLKW64: |
| #ifdef TARGET_ARM |
| if (((CPUARMState *)cpu_env)->eabi) { |
| if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) |
| goto efault; |
| fl.l_type = tswap16(target_efl->l_type); |
| fl.l_whence = tswap16(target_efl->l_whence); |
| fl.l_start = tswap64(target_efl->l_start); |
| fl.l_len = tswap64(target_efl->l_len); |
| fl.l_pid = tswap32(target_efl->l_pid); |
| unlock_user_struct(target_efl, arg3, 0); |
| } else |
| #endif |
| { |
| if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) |
| goto efault; |
| fl.l_type = tswap16(target_fl->l_type); |
| fl.l_whence = tswap16(target_fl->l_whence); |
| fl.l_start = tswap64(target_fl->l_start); |
| fl.l_len = tswap64(target_fl->l_len); |
| fl.l_pid = tswap32(target_fl->l_pid); |
| unlock_user_struct(target_fl, arg3, 0); |
| } |
| ret = get_errno(fcntl(arg1, cmd, &fl)); |
| break; |
| default: |
| ret = do_fcntl(arg1, arg2, arg3); |
| break; |
| } |
| break; |
| } |
| #endif |
| #ifdef TARGET_NR_cacheflush |
| case TARGET_NR_cacheflush: |
| /* self-modifying code is handled automatically, so nothing needed */ |
| ret = 0; |
| break; |
| #endif |
| #ifdef TARGET_NR_security |
| case TARGET_NR_security: |
| goto unimplemented; |
| #endif |
| #ifdef TARGET_NR_getpagesize |
| case TARGET_NR_getpagesize: |
| ret = TARGET_PAGE_SIZE; |
| break; |
| #endif |
| case TARGET_NR_gettid: |
| ret = get_errno(gettid()); |
| break; |
| #ifdef TARGET_NR_readahead |
| case TARGET_NR_readahead: |
| #if TARGET_ABI_BITS == 32 |
| if (regpairs_aligned(cpu_env)) { |
| arg2 = arg3; |
| arg3 = arg4; |
| arg4 = arg5; |
| } |
| ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4)); |
| #else |
| ret = get_errno(readahead(arg1, arg2, arg3)); |
| #endif |
| break; |
| #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) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| } |
| 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); |
| break; |
| } |
| case TARGET_NR_flistxattr: |
| { |
| void *b = 0; |
| if (arg2) { |
| b = lock_user(VERIFY_WRITE, arg2, arg3, 0); |
| if (!b) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| } |
| ret = get_errno(flistxattr(arg1, b, arg3)); |
| unlock_user(b, arg2, arg3); |
| break; |
| } |
| 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) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| } |
| 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); |
| } |
| break; |
| case TARGET_NR_fsetxattr: |
| { |
| void *n, *v = 0; |
| if (arg3) { |
| v = lock_user(VERIFY_READ, arg3, arg4, 1); |
| if (!v) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| } |
| 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); |
| } |
| break; |
| 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) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| } |
| 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); |
| } |
| break; |
| case TARGET_NR_fgetxattr: |
| { |
| void *n, *v = 0; |
| if (arg3) { |
| v = lock_user(VERIFY_WRITE, arg3, arg4, 0); |
| if (!v) { |
| ret = -TARGET_EFAULT; |
| break; |
| } |
| } |
| 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); |
| } |
| break; |
| 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); |
| } |
| break; |
| 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); |
| } |
| break; |
| #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; |
| ret = 0; |
| break; |
| #elif defined(TARGET_CRIS) |
| if (arg1 & 0xff) |
| ret = -TARGET_EINVAL; |
| else { |
| ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1; |
| ret = 0; |
| } |
| break; |
| #elif defined(TARGET_I386) && defined(TARGET_ABI32) |
| ret = do_set_thread_area(cpu_env, arg1); |
| break; |
| #elif defined(TARGET_M68K) |
| { |
| TaskState *ts = cpu->opaque; |
| ts->tp_value = arg1; |
| ret = 0; |
| break; |
| } |
| #else |
| goto unimplemented_nowarn; |
| #endif |
| #endif |
| #ifdef TARGET_NR_get_thread_area |
| case TARGET_NR_get_thread_area: |
| #if defined(TARGET_I386) && defined(TARGET_ABI32) |
| ret = do_get_thread_area(cpu_env, arg1); |
| break; |
| #elif defined(TARGET_M68K) |
| { |
| TaskState *ts = cpu->opaque; |
| ret = ts->tp_value; |
| break; |
| } |
| #else |
| goto unimplemented_nowarn; |
| #endif |
| #endif |
| #ifdef TARGET_NR_getdomainname |
| case TARGET_NR_getdomainname: |
| goto unimplemented_nowarn; |
| #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)) { |
| host_to_target_timespec(arg2, &ts); |
| } |
| break; |
| } |
| #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); |
| } |
| break; |
| } |
| #endif |
| #ifdef TARGET_NR_clock_nanosleep |
| case TARGET_NR_clock_nanosleep: |
| { |
| struct timespec ts; |
| target_to_host_timespec(&ts, arg3); |
| ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL)); |
| if (arg4) |
| host_to_target_timespec(arg4, &ts); |
| break; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) |
| case TARGET_NR_set_tid_address: |
| ret = get_errno(set_tid_address((int *)g2h(arg1))); |
| break; |
| #endif |
| |
| #if defined(TARGET_NR_tkill) && defined(__NR_tkill) |
| case TARGET_NR_tkill: |
| ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2))); |
| break; |
| #endif |
| |
| #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) |
| case TARGET_NR_tgkill: |
| ret = get_errno(sys_tgkill((int)arg1, (int)arg2, |
| target_to_host_signal(arg3))); |
| break; |
| #endif |
| |
| #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). |
| */ |
| goto unimplemented_nowarn; |
| #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))) { |
| ret = -TARGET_EFAULT; |
| goto fail; |
| } |
| ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); |
| unlock_user(p, arg2, 0); |
| } |
| } |
| break; |
| #endif |
| case TARGET_NR_futex: |
| ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6); |
| break; |
| #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) |
| case TARGET_NR_inotify_init: |
| ret = get_errno(sys_inotify_init()); |
| break; |
| #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(arg1)); |
| break; |
| #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); |
| break; |
| #endif |
| #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) |
| case TARGET_NR_inotify_rm_watch: |
| ret = get_errno(sys_inotify_rm_watch(arg1, arg2)); |
| break; |
| #endif |
| |
| #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) |
| case TARGET_NR_mq_open: |
| { |
| struct mq_attr posix_mq_attr; |
| |
| p = lock_user_string(arg1 - 1); |
| if (arg4 != 0) |
| copy_from_user_mq_attr (&posix_mq_attr, arg4); |
| ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr)); |
| unlock_user (p, arg1, 0); |
| } |
| break; |
| |
| case TARGET_NR_mq_unlink: |
| p = lock_user_string(arg1 - 1); |
| ret = get_errno(mq_unlink(p)); |
| unlock_user (p, arg1, 0); |
| break; |
| |
| 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(mq_timedsend(arg1, p, arg3, arg4, &ts)); |
| host_to_target_timespec(arg5, &ts); |
| } |
| else |
| ret = get_errno(mq_send(arg1, p, arg3, arg4)); |
| unlock_user (p, arg2, arg3); |
| } |
| break; |
| |
| 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(mq_timedreceive(arg1, p, arg3, &prio, &ts)); |
| host_to_target_timespec(arg5, &ts); |
| } |
| else |
| ret = get_errno(mq_receive(arg1, p, arg3, &prio)); |
| unlock_user (p, arg2, arg3); |
| if (arg4 != 0) |
| put_user_u32(prio, arg4); |
| } |
| break; |
| |
| /* 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 (arg3 != 0) { |
| ret = mq_getattr(arg1, &posix_mq_attr_out); |
| copy_to_user_mq_attr(arg3, &posix_mq_attr_out); |
| } |
| if (arg2 != 0) { |
| copy_from_user_mq_attr(&posix_mq_attr_in, arg2); |
| ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out); |
| } |
| |
| } |
| break; |
| #endif |
| |
| #ifdef CONFIG_SPLICE |
| #ifdef TARGET_NR_tee |
| case TARGET_NR_tee: |
| { |
| ret = get_errno(tee(arg1,arg2,arg3,arg4)); |
| } |
| break; |
| #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) { |
| get_user_u64(loff_in, arg2); |
| ploff_in = &loff_in; |
| } |
| if(arg4) { |
| get_user_u64(loff_out, arg2); |
| ploff_out = &loff_out; |
| } |
| ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); |
| } |
| break; |
| #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); |
| } |
| } |
| break; |
| #endif |
| #endif /* CONFIG_SPLICE */ |
| #ifdef CONFIG_EVENTFD |
| #if defined(TARGET_NR_eventfd) |
| case TARGET_NR_eventfd: |
| ret = get_errno(eventfd(arg1, 0)); |
| break; |
| #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)); |
| break; |
| } |
| #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 |
| break; |
| #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 |
| break; |
| #endif |
| #if defined(TARGET_NR_sync_file_range2) |
| case TARGET_NR_sync_file_range2: |
| /* 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 |
| break; |
| #endif |
| #endif |
| #if defined(CONFIG_EPOLL) |
| #if defined(TARGET_NR_epoll_create) |
| case TARGET_NR_epoll_create: |
| ret = get_errno(epoll_create(arg1)); |
| break; |
| #endif |
| #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1) |
| case TARGET_NR_epoll_create1: |
| ret = get_errno(epoll_create1(arg1)); |
| break; |
| #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)) { |
| goto 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; |
| } |
| ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp)); |
| break; |
| } |
| #endif |
| |
| #if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT) |
| #define IMPLEMENT_EPOLL_PWAIT |
| #endif |
| #if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT) |
| #if defined(TARGET_NR_epoll_wait) |
| case TARGET_NR_epoll_wait: |
| #endif |
| #if defined(IMPLEMENT_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; |
| |
| target_ep = lock_user(VERIFY_WRITE, arg2, |
| maxevents * sizeof(struct target_epoll_event), 1); |
| if (!target_ep) { |
| goto efault; |
| } |
| |
| ep = alloca(maxevents * sizeof(struct epoll_event)); |
| |
| switch (num) { |
| #if defined(IMPLEMENT_EPOLL_PWAIT) |
| case TARGET_NR_epoll_pwait: |
| { |
| target_sigset_t *target_set; |
| sigset_t _set, *set = &_set; |
| |
| if (arg5) { |
| target_set = lock_user(VERIFY_READ, arg5, |
| sizeof(target_sigset_t), 1); |
| if (!target_set) { |
| unlock_user(target_ep, arg2, 0); |
| goto efault; |
| } |
| target_to_host_sigset(set, target_set); |
| unlock_user(target_set, arg5, 0); |
| } else { |
| set = NULL; |
| } |
| |
| ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set)); |
| break; |
| } |
| #endif |
| #if defined(TARGET_NR_epoll_wait) |
| case TARGET_NR_epoll_wait: |
| ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout)); |
| 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)); |
| break; |
| } |
| #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; |
| if (arg3) { |
| if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) { |
| goto 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, arg2, rnewp, arg4 ? &rold : 0)); |
| if (!is_error(ret) && arg4) { |
| if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) { |
| goto efault; |
| } |
| target_rold->rlim_cur = tswap64(rold.rlim_cur); |
| target_rold->rlim_max = tswap64(rold.rlim_max); |
| unlock_user_struct(target_rold, arg4, 1); |
| } |
| break; |
| } |
| #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; |
| } |
| break; |
| } |
| #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, &info); |
| ret = 0xdeadbeef; |
| |
| } |
| if (mem_value == arg2) |
| put_user_u32(arg1, arg6); |
| ret = mem_value; |
| break; |
| } |
| #endif |
| #ifdef TARGET_NR_atomic_barrier |
| case TARGET_NR_atomic_barrier: |
| { |
| /* Like the kernel implementation and the qemu arm barrier, no-op this? */ |
| ret = 0; |
| break; |
| } |
| #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; |
| struct target_sigevent *ptarget_sevp; |
| struct target_timer_t *ptarget_timer; |
| |
| 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) { |
| if (!lock_user_struct(VERIFY_READ, ptarget_sevp, arg2, 1)) { |
| goto efault; |
| } |
| |
| host_sevp.sigev_signo = tswap32(ptarget_sevp->sigev_signo); |
| host_sevp.sigev_notify = tswap32(ptarget_sevp->sigev_notify); |
| |
| phost_sevp = &host_sevp; |
| } |
| |
| ret = get_errno(timer_create(clkid, phost_sevp, phtimer)); |
| if (ret) { |
| phtimer = NULL; |
| } else { |
| if (!lock_user_struct(VERIFY_WRITE, ptarget_timer, arg3, 1)) { |
| goto efault; |
| } |
| ptarget_timer->ptr = tswap32(0xcafe0000 | timer_index); |
| unlock_user_struct(ptarget_timer, arg3, 1); |
| } |
| } |
| break; |
| } |
| #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 */ |
| arg1 &= 0xffff; |
| if (arg3 == 0 || arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { |
| ret = -TARGET_EINVAL; |
| } else { |
| timer_t htimer = g_posix_timers[arg1]; |
| struct itimerspec hspec_new = {{0},}, hspec_old = {{0},}; |
| |
| target_to_host_itimerspec(&hspec_new, arg3); |
| ret = get_errno( |
| timer_settime(htimer, arg2, &hspec_new, &hspec_old)); |
| host_to_target_itimerspec(arg2, &hspec_old); |
| } |
| break; |
| } |
| #endif |
| |
| #ifdef TARGET_NR_timer_gettime |
| case TARGET_NR_timer_gettime: |
| { |
| /* args: timer_t timerid, struct itimerspec *curr_value */ |
| arg1 &= 0xffff; |
| if (!arg2) { |
| return -TARGET_EFAULT; |
| } else if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { |
| ret = -TARGET_EINVAL; |
| } else { |
| timer_t htimer = g_posix_timers[arg1]; |
| struct itimerspec hspec; |
| ret = get_errno(timer_gettime(htimer, &hspec)); |
| |
| if (host_to_target_itimerspec(arg2, &hspec)) { |
| ret = -TARGET_EFAULT; |
| } |
| } |
| break; |
| } |
| #endif |
| |
| #ifdef TARGET_NR_timer_getoverrun |
| case TARGET_NR_timer_getoverrun: |
| { |
| /* args: timer_t timerid */ |
| arg1 &= 0xffff; |
| if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { |
| ret = -TARGET_EINVAL; |
| } else { |
| timer_t htimer = g_posix_timers[arg1]; |
| ret = get_errno(timer_getoverrun(htimer)); |
| } |
| break; |
| } |
| #endif |
| |
| #ifdef TARGET_NR_timer_delete |
| case TARGET_NR_timer_delete: |
| { |
| /* args: timer_t timerid */ |
| arg1 &= 0xffff; |
| if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) { |
| ret = -TARGET_EINVAL; |
| } else { |
| timer_t htimer = g_posix_timers[arg1]; |
| ret = get_errno(timer_delete(htimer)); |
| g_posix_timers[arg1] = 0; |
| } |
| break; |
| } |
| #endif |
| |
| default: |
| unimplemented: |
| gemu_log("qemu: Unsupported syscall: %d\n", num); |
| #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) |
| unimplemented_nowarn: |
| #endif |
| ret = -TARGET_ENOSYS; |
| break; |
| } |
| fail: |
| #ifdef DEBUG |
| gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret); |
| #endif |
| if(do_strace) |
| print_syscall_ret(num, ret); |
| return ret; |
| efault: |
| ret = -TARGET_EFAULT; |
| goto fail; |
| } |