Jes Sorensen | 86b645e | 2010-06-10 11:42:19 +0200 | [diff] [blame] | 1 | /* |
| 2 | * os-posix.c |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * Copyright (c) 2010 Red Hat, Inc. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal |
| 9 | * in the Software without restriction, including without limitation the rights |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | * copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 23 | * THE SOFTWARE. |
| 24 | */ |
| 25 | |
Peter Maydell | d38ea87 | 2016-01-29 17:50:05 +0000 | [diff] [blame] | 26 | #include "qemu/osdep.h" |
Jes Sorensen | 8d963e6 | 2010-06-10 11:42:22 +0200 | [diff] [blame] | 27 | #include <sys/wait.h> |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 28 | #include <pwd.h> |
Stefan Hajnoczi | cc4662f | 2011-07-09 10:22:07 +0100 | [diff] [blame] | 29 | #include <grp.h> |
Jes Sorensen | 6170540 | 2010-06-10 11:42:23 +0200 | [diff] [blame] | 30 | #include <libgen.h> |
Jes Sorensen | 86b645e | 2010-06-10 11:42:19 +0200 | [diff] [blame] | 31 | |
Markus Armbruster | a8d2532 | 2019-05-23 16:35:08 +0200 | [diff] [blame] | 32 | #include "qemu-common.h" |
Jes Sorensen | 86b645e | 2010-06-10 11:42:19 +0200 | [diff] [blame] | 33 | /* Needed early for CONFIG_BSD etc. */ |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 34 | #include "net/slirp.h" |
Paolo Bonzini | fd5fc4b | 2021-05-17 07:34:21 -0400 | [diff] [blame] | 35 | #include "qemu/qemu-options.h" |
Thomas Huth | f853ac6 | 2016-01-13 09:05:32 +0100 | [diff] [blame] | 36 | #include "qemu/error-report.h" |
Dimitris Aragiorgis | 96c33a4 | 2016-02-18 13:38:38 +0200 | [diff] [blame] | 37 | #include "qemu/log.h" |
Markus Armbruster | 54d3123 | 2019-08-12 07:23:59 +0200 | [diff] [blame] | 38 | #include "sysemu/runstate.h" |
Veronia Bahaa | f348b6d | 2016-03-20 19:16:19 +0200 | [diff] [blame] | 39 | #include "qemu/cutils.h" |
Jes Sorensen | 86b645e | 2010-06-10 11:42:19 +0200 | [diff] [blame] | 40 | |
Jes Sorensen | ce798cf | 2010-06-10 11:42:31 +0200 | [diff] [blame] | 41 | #ifdef CONFIG_LINUX |
| 42 | #include <sys/prctl.h> |
Jes Sorensen | 949d31e | 2010-10-26 10:39:22 +0200 | [diff] [blame] | 43 | #endif |
| 44 | |
Ian Jackson | 2c42f1e | 2017-09-15 18:10:44 +0100 | [diff] [blame] | 45 | /* |
| 46 | * Must set all three of these at once. |
| 47 | * Legal combinations are unset by name by uid |
| 48 | */ |
| 49 | static struct passwd *user_pwd; /* NULL non-NULL NULL */ |
| 50 | static uid_t user_uid = (uid_t)-1; /* -1 -1 >=0 */ |
| 51 | static gid_t user_gid = (gid_t)-1; /* -1 -1 >=0 */ |
| 52 | |
Jes Sorensen | 0766379 | 2010-06-10 11:42:27 +0200 | [diff] [blame] | 53 | static const char *chroot_dir; |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 54 | static int daemonize; |
Michael Tokarev | 0be5e43 | 2014-10-30 17:30:51 +0300 | [diff] [blame] | 55 | static int daemon_pipe; |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 56 | |
Jes Sorensen | fe98ac1 | 2010-06-10 11:42:21 +0200 | [diff] [blame] | 57 | void os_setup_early_signal_handling(void) |
Jes Sorensen | 86b645e | 2010-06-10 11:42:19 +0200 | [diff] [blame] | 58 | { |
| 59 | struct sigaction act; |
| 60 | sigfillset(&act.sa_mask); |
| 61 | act.sa_flags = 0; |
| 62 | act.sa_handler = SIG_IGN; |
| 63 | sigaction(SIGPIPE, &act, NULL); |
| 64 | } |
Jes Sorensen | 8d963e6 | 2010-06-10 11:42:22 +0200 | [diff] [blame] | 65 | |
Gleb Natapov | f64622c | 2011-03-15 13:56:04 +0200 | [diff] [blame] | 66 | static void termsig_handler(int signal, siginfo_t *info, void *c) |
Jes Sorensen | 8d963e6 | 2010-06-10 11:42:22 +0200 | [diff] [blame] | 67 | { |
Gleb Natapov | f64622c | 2011-03-15 13:56:04 +0200 | [diff] [blame] | 68 | qemu_system_killed(info->si_signo, info->si_pid); |
Jes Sorensen | 8d963e6 | 2010-06-10 11:42:22 +0200 | [diff] [blame] | 69 | } |
| 70 | |
Jes Sorensen | 8d963e6 | 2010-06-10 11:42:22 +0200 | [diff] [blame] | 71 | void os_setup_signal_handling(void) |
| 72 | { |
| 73 | struct sigaction act; |
| 74 | |
| 75 | memset(&act, 0, sizeof(act)); |
Gleb Natapov | f64622c | 2011-03-15 13:56:04 +0200 | [diff] [blame] | 76 | act.sa_sigaction = termsig_handler; |
| 77 | act.sa_flags = SA_SIGINFO; |
Jes Sorensen | 8d963e6 | 2010-06-10 11:42:22 +0200 | [diff] [blame] | 78 | sigaction(SIGINT, &act, NULL); |
| 79 | sigaction(SIGHUP, &act, NULL); |
| 80 | sigaction(SIGTERM, &act, NULL); |
Jes Sorensen | 8d963e6 | 2010-06-10 11:42:22 +0200 | [diff] [blame] | 81 | } |
Jes Sorensen | 6170540 | 2010-06-10 11:42:23 +0200 | [diff] [blame] | 82 | |
Jes Sorensen | ce798cf | 2010-06-10 11:42:31 +0200 | [diff] [blame] | 83 | void os_set_proc_name(const char *s) |
| 84 | { |
| 85 | #if defined(PR_SET_NAME) |
| 86 | char name[16]; |
| 87 | if (!s) |
| 88 | return; |
Jim Meyering | 3eadc68 | 2012-10-04 13:09:51 +0200 | [diff] [blame] | 89 | pstrcpy(name, sizeof(name), s); |
Jes Sorensen | ce798cf | 2010-06-10 11:42:31 +0200 | [diff] [blame] | 90 | /* Could rewrite argv[0] too, but that's a bit more complicated. |
| 91 | This simple way is enough for `top'. */ |
| 92 | if (prctl(PR_SET_NAME, name)) { |
Ian Jackson | a7aaec1 | 2018-04-16 15:16:23 +0100 | [diff] [blame] | 93 | error_report("unable to change process name: %s", strerror(errno)); |
Jes Sorensen | ce798cf | 2010-06-10 11:42:31 +0200 | [diff] [blame] | 94 | exit(1); |
| 95 | } |
| 96 | #else |
Ian Jackson | 22cd4f4 | 2018-04-16 15:15:51 +0100 | [diff] [blame] | 97 | error_report("Change of process name not supported by your OS"); |
Jes Sorensen | ce798cf | 2010-06-10 11:42:31 +0200 | [diff] [blame] | 98 | exit(1); |
| 99 | #endif |
| 100 | } |
| 101 | |
Ian Jackson | 2c42f1e | 2017-09-15 18:10:44 +0100 | [diff] [blame] | 102 | |
| 103 | static bool os_parse_runas_uid_gid(const char *optarg) |
| 104 | { |
| 105 | unsigned long lv; |
| 106 | const char *ep; |
| 107 | uid_t got_uid; |
| 108 | gid_t got_gid; |
| 109 | int rc; |
| 110 | |
| 111 | rc = qemu_strtoul(optarg, &ep, 0, &lv); |
| 112 | got_uid = lv; /* overflow here is ID in C99 */ |
| 113 | if (rc || *ep != ':' || got_uid != lv || got_uid == (uid_t)-1) { |
| 114 | return false; |
| 115 | } |
| 116 | |
| 117 | rc = qemu_strtoul(ep + 1, 0, 0, &lv); |
| 118 | got_gid = lv; /* overflow here is ID in C99 */ |
| 119 | if (rc || got_gid != lv || got_gid == (gid_t)-1) { |
| 120 | return false; |
| 121 | } |
| 122 | |
| 123 | user_pwd = NULL; |
| 124 | user_uid = got_uid; |
| 125 | user_gid = got_gid; |
| 126 | return true; |
| 127 | } |
| 128 | |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 129 | /* |
| 130 | * Parse OS specific command line options. |
| 131 | * return 0 if option handled, -1 otherwise |
| 132 | */ |
Thomas Huth | 1217d6ca | 2018-05-04 19:01:07 +0200 | [diff] [blame] | 133 | int os_parse_cmd_args(int index, const char *optarg) |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 134 | { |
| 135 | switch (index) { |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 136 | case QEMU_OPTION_runas: |
| 137 | user_pwd = getpwnam(optarg); |
Ian Jackson | 2c42f1e | 2017-09-15 18:10:44 +0100 | [diff] [blame] | 138 | if (user_pwd) { |
| 139 | user_uid = -1; |
| 140 | user_gid = -1; |
| 141 | } else if (!os_parse_runas_uid_gid(optarg)) { |
| 142 | error_report("User \"%s\" doesn't exist" |
| 143 | " (and is not <uid>:<gid>)", |
| 144 | optarg); |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 145 | exit(1); |
| 146 | } |
| 147 | break; |
Jes Sorensen | 0766379 | 2010-06-10 11:42:27 +0200 | [diff] [blame] | 148 | case QEMU_OPTION_chroot: |
| 149 | chroot_dir = optarg; |
| 150 | break; |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 151 | case QEMU_OPTION_daemonize: |
| 152 | daemonize = 1; |
| 153 | break; |
Anthony Liguori | 70678b8 | 2012-08-03 18:28:37 -0500 | [diff] [blame] | 154 | #if defined(CONFIG_LINUX) |
| 155 | case QEMU_OPTION_enablefips: |
Daniel P. Berrangé | 1663102 | 2020-10-20 17:08:27 +0100 | [diff] [blame] | 156 | warn_report("-enable-fips is deprecated, please build QEMU with " |
| 157 | "the `libgcrypt` library as the cryptography provider " |
| 158 | "to enable FIPS compliance"); |
Anthony Liguori | 70678b8 | 2012-08-03 18:28:37 -0500 | [diff] [blame] | 159 | fips_set_state(true); |
| 160 | break; |
| 161 | #endif |
Thomas Huth | 1217d6ca | 2018-05-04 19:01:07 +0200 | [diff] [blame] | 162 | default: |
| 163 | return -1; |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 164 | } |
Thomas Huth | 1217d6ca | 2018-05-04 19:01:07 +0200 | [diff] [blame] | 165 | |
| 166 | return 0; |
Jes Sorensen | 59a5264 | 2010-06-10 11:42:25 +0200 | [diff] [blame] | 167 | } |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 168 | |
Jes Sorensen | e06eb60 | 2010-06-10 11:42:29 +0200 | [diff] [blame] | 169 | static void change_process_uid(void) |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 170 | { |
Ian Jackson | 2c42f1e | 2017-09-15 18:10:44 +0100 | [diff] [blame] | 171 | assert((user_uid == (uid_t)-1) || user_pwd == NULL); |
| 172 | assert((user_uid == (uid_t)-1) == |
| 173 | (user_gid == (gid_t)-1)); |
| 174 | |
| 175 | if (user_pwd || user_uid != (uid_t)-1) { |
| 176 | gid_t intended_gid = user_pwd ? user_pwd->pw_gid : user_gid; |
| 177 | uid_t intended_uid = user_pwd ? user_pwd->pw_uid : user_uid; |
| 178 | if (setgid(intended_gid) < 0) { |
| 179 | error_report("Failed to setgid(%d)", intended_gid); |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 180 | exit(1); |
| 181 | } |
Ian Jackson | 2c42f1e | 2017-09-15 18:10:44 +0100 | [diff] [blame] | 182 | if (user_pwd) { |
| 183 | if (initgroups(user_pwd->pw_name, user_pwd->pw_gid) < 0) { |
| 184 | error_report("Failed to initgroups(\"%s\", %d)", |
| 185 | user_pwd->pw_name, user_pwd->pw_gid); |
| 186 | exit(1); |
| 187 | } |
| 188 | } else { |
| 189 | if (setgroups(1, &user_gid) < 0) { |
| 190 | error_report("Failed to setgroups(1, [%d])", |
| 191 | user_gid); |
| 192 | exit(1); |
| 193 | } |
Stefan Hajnoczi | cc4662f | 2011-07-09 10:22:07 +0100 | [diff] [blame] | 194 | } |
Ian Jackson | 2c42f1e | 2017-09-15 18:10:44 +0100 | [diff] [blame] | 195 | if (setuid(intended_uid) < 0) { |
| 196 | error_report("Failed to setuid(%d)", intended_uid); |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 197 | exit(1); |
| 198 | } |
| 199 | if (setuid(0) != -1) { |
Ian Jackson | f0a2171 | 2018-04-16 15:08:03 +0100 | [diff] [blame] | 200 | error_report("Dropping privileges failed"); |
Jes Sorensen | 8847cfe | 2010-06-10 11:42:26 +0200 | [diff] [blame] | 201 | exit(1); |
| 202 | } |
| 203 | } |
| 204 | } |
Jes Sorensen | 0766379 | 2010-06-10 11:42:27 +0200 | [diff] [blame] | 205 | |
Jes Sorensen | e06eb60 | 2010-06-10 11:42:29 +0200 | [diff] [blame] | 206 | static void change_root(void) |
Jes Sorensen | 0766379 | 2010-06-10 11:42:27 +0200 | [diff] [blame] | 207 | { |
| 208 | if (chroot_dir) { |
| 209 | if (chroot(chroot_dir) < 0) { |
Ian Jackson | 22cd4f4 | 2018-04-16 15:15:51 +0100 | [diff] [blame] | 210 | error_report("chroot failed"); |
Jes Sorensen | 0766379 | 2010-06-10 11:42:27 +0200 | [diff] [blame] | 211 | exit(1); |
| 212 | } |
| 213 | if (chdir("/")) { |
Ian Jackson | a7aaec1 | 2018-04-16 15:16:23 +0100 | [diff] [blame] | 214 | error_report("not able to chdir to /: %s", strerror(errno)); |
Jes Sorensen | 0766379 | 2010-06-10 11:42:27 +0200 | [diff] [blame] | 215 | exit(1); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | } |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 220 | |
| 221 | void os_daemonize(void) |
| 222 | { |
| 223 | if (daemonize) { |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 224 | pid_t pid; |
Michael Tokarev | 0be5e43 | 2014-10-30 17:30:51 +0300 | [diff] [blame] | 225 | int fds[2]; |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 226 | |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 227 | if (pipe(fds) == -1) { |
| 228 | exit(1); |
| 229 | } |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 230 | |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 231 | pid = fork(); |
| 232 | if (pid > 0) { |
| 233 | uint8_t status; |
| 234 | ssize_t len; |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 235 | |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 236 | close(fds[1]); |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 237 | |
Michael Tokarev | ccea25f | 2014-10-30 17:37:16 +0300 | [diff] [blame] | 238 | do { |
| 239 | len = read(fds[0], &status, 1); |
| 240 | } while (len < 0 && errno == EINTR); |
Michael Tokarev | fee78fd | 2014-10-30 17:40:48 +0300 | [diff] [blame] | 241 | |
| 242 | /* only exit successfully if our child actually wrote |
| 243 | * a one-byte zero to our pipe, upon successful init */ |
| 244 | exit(len == 1 && status == 0 ? 0 : 1); |
| 245 | |
| 246 | } else if (pid < 0) { |
| 247 | exit(1); |
| 248 | } |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 249 | |
| 250 | close(fds[0]); |
Michael Tokarev | 0be5e43 | 2014-10-30 17:30:51 +0300 | [diff] [blame] | 251 | daemon_pipe = fds[1]; |
| 252 | qemu_set_cloexec(daemon_pipe); |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 253 | |
| 254 | setsid(); |
| 255 | |
| 256 | pid = fork(); |
| 257 | if (pid > 0) { |
| 258 | exit(0); |
| 259 | } else if (pid < 0) { |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 260 | exit(1); |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 261 | } |
| 262 | umask(027); |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 263 | |
| 264 | signal(SIGTSTP, SIG_IGN); |
| 265 | signal(SIGTTOU, SIG_IGN); |
| 266 | signal(SIGTTIN, SIG_IGN); |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | void os_setup_post(void) |
| 271 | { |
| 272 | int fd = 0; |
| 273 | |
| 274 | if (daemonize) { |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 275 | if (chdir("/")) { |
Ian Jackson | a7aaec1 | 2018-04-16 15:16:23 +0100 | [diff] [blame] | 276 | error_report("not able to chdir to /: %s", strerror(errno)); |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 277 | exit(1); |
| 278 | } |
Daniel P. Berrangé | 448058a | 2020-07-21 13:25:21 +0100 | [diff] [blame] | 279 | TFR(fd = qemu_open_old("/dev/null", O_RDWR)); |
Gonglei | 63ce8e1 | 2014-09-26 16:14:30 +0800 | [diff] [blame] | 280 | if (fd == -1) { |
| 281 | exit(1); |
| 282 | } |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 283 | } |
| 284 | |
Jes Sorensen | e06eb60 | 2010-06-10 11:42:29 +0200 | [diff] [blame] | 285 | change_root(); |
| 286 | change_process_uid(); |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 287 | |
| 288 | if (daemonize) { |
Michael Tokarev | 25cec2b | 2014-10-30 17:47:46 +0300 | [diff] [blame] | 289 | uint8_t status = 0; |
| 290 | ssize_t len; |
| 291 | |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 292 | dup2(fd, 0); |
| 293 | dup2(fd, 1); |
Dimitris Aragiorgis | 96c33a4 | 2016-02-18 13:38:38 +0200 | [diff] [blame] | 294 | /* In case -D is given do not redirect stderr to /dev/null */ |
| 295 | if (!qemu_logfile) { |
| 296 | dup2(fd, 2); |
| 297 | } |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 298 | |
| 299 | close(fd); |
Michael Tokarev | 25cec2b | 2014-10-30 17:47:46 +0300 | [diff] [blame] | 300 | |
| 301 | do { |
| 302 | len = write(daemon_pipe, &status, 1); |
| 303 | } while (len < 0 && errno == EINTR); |
| 304 | if (len != 1) { |
| 305 | exit(1); |
| 306 | } |
Jes Sorensen | eb505be | 2010-06-10 11:42:28 +0200 | [diff] [blame] | 307 | } |
| 308 | } |
| 309 | |
Jes Sorensen | 9156d76 | 2010-06-10 11:42:30 +0200 | [diff] [blame] | 310 | void os_set_line_buffering(void) |
| 311 | { |
| 312 | setvbuf(stdout, NULL, _IOLBF, 0); |
| 313 | } |
Jes Sorensen | 949d31e | 2010-10-26 10:39:22 +0200 | [diff] [blame] | 314 | |
Hitoshi Mitake | 995ee2b | 2012-09-15 01:15:41 +0900 | [diff] [blame] | 315 | bool is_daemonized(void) |
| 316 | { |
| 317 | return daemonize; |
| 318 | } |
Satoru Moriya | 888a6bc | 2013-04-19 16:42:06 +0200 | [diff] [blame] | 319 | |
| 320 | int os_mlock(void) |
| 321 | { |
David CARLIER | 195588c | 2020-07-13 14:36:09 +0100 | [diff] [blame] | 322 | #ifdef HAVE_MLOCKALL |
Satoru Moriya | 888a6bc | 2013-04-19 16:42:06 +0200 | [diff] [blame] | 323 | int ret = 0; |
| 324 | |
| 325 | ret = mlockall(MCL_CURRENT | MCL_FUTURE); |
| 326 | if (ret < 0) { |
Ian Jackson | a7aaec1 | 2018-04-16 15:16:23 +0100 | [diff] [blame] | 327 | error_report("mlockall: %s", strerror(errno)); |
Satoru Moriya | 888a6bc | 2013-04-19 16:42:06 +0200 | [diff] [blame] | 328 | } |
| 329 | |
| 330 | return ret; |
David CARLIER | 195588c | 2020-07-13 14:36:09 +0100 | [diff] [blame] | 331 | #else |
| 332 | return -ENOSYS; |
| 333 | #endif |
Satoru Moriya | 888a6bc | 2013-04-19 16:42:06 +0200 | [diff] [blame] | 334 | } |