2 * Copyright (C) 2003-2010 Kay Sievers <kay.sievers@vrfy.org>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 #include <sys/ioctl.h>
29 #include <sys/prctl.h>
31 #include <sys/epoll.h>
33 #include <sys/socket.h>
34 #include <sys/signalfd.h>
35 #include <linux/sockios.h>
39 struct udev_event *udev_event_new(struct udev_device *dev)
41 struct udev *udev = udev_device_get_udev(dev);
42 struct udev_event *event;
44 event = calloc(1, sizeof(struct udev_event));
49 udev_list_init(udev, &event->run_list, false);
50 event->fd_signal = -1;
51 event->birth_usec = now_usec();
52 event->timeout_usec = 30 * 1000 * 1000;
53 dbg(event->udev, "allocated event %p\n", event);
57 void udev_event_unref(struct udev_event *event)
61 udev_list_cleanup(&event->run_list);
62 free(event->program_result);
64 dbg(event->udev, "free event %p\n", event);
68 size_t udev_event_apply_format(struct udev_event *event, const char *src, char *dest, size_t size)
70 struct udev_device *dev = event->dev;
90 static const struct subst_map {
95 { .name = "devnode", .fmt = 'N', .type = SUBST_DEVNODE },
96 { .name = "tempnode", .fmt = 'N', .type = SUBST_DEVNODE },
97 { .name = "attr", .fmt = 's', .type = SUBST_ATTR },
98 { .name = "sysfs", .fmt = 's', .type = SUBST_ATTR },
99 { .name = "env", .fmt = 'E', .type = SUBST_ENV },
100 { .name = "kernel", .fmt = 'k', .type = SUBST_KERNEL },
101 { .name = "number", .fmt = 'n', .type = SUBST_KERNEL_NUMBER },
102 { .name = "driver", .fmt = 'd', .type = SUBST_DRIVER },
103 { .name = "devpath", .fmt = 'p', .type = SUBST_DEVPATH },
104 { .name = "id", .fmt = 'b', .type = SUBST_ID },
105 { .name = "major", .fmt = 'M', .type = SUBST_MAJOR },
106 { .name = "minor", .fmt = 'm', .type = SUBST_MINOR },
107 { .name = "result", .fmt = 'c', .type = SUBST_RESULT },
108 { .name = "parent", .fmt = 'P', .type = SUBST_PARENT },
109 { .name = "name", .fmt = 'D', .type = SUBST_NAME },
110 { .name = "links", .fmt = 'L', .type = SUBST_LINKS },
111 { .name = "root", .fmt = 'r', .type = SUBST_ROOT },
112 { .name = "sys", .fmt = 'S', .type = SUBST_SYS },
123 enum subst_type type = SUBST_UNKNOWN;
124 char attrbuf[UTIL_PATH_SIZE];
127 while (from[0] != '\0') {
128 if (from[0] == '$') {
129 /* substitute named variable */
132 if (from[1] == '$') {
137 for (i = 0; i < ARRAY_SIZE(map); i++) {
138 if (strncmp(&from[1], map[i].name, strlen(map[i].name)) == 0) {
140 from += strlen(map[i].name)+1;
141 dbg(event->udev, "will substitute format name '%s'\n", map[i].name);
145 } else if (from[0] == '%') {
146 /* substitute format char */
149 if (from[1] == '%') {
154 for (i = 0; i < ARRAY_SIZE(map); i++) {
155 if (from[1] == map[i].fmt) {
158 dbg(event->udev, "will substitute format char '%c'\n", map[i].fmt);
175 /* extract possible $format{attr} */
176 if (from[0] == '{') {
180 for (i = 0; from[i] != '}'; i++) {
181 if (from[i] == '\0') {
182 err(event->udev, "missing closing brace for format '%s'\n", src);
186 if (i >= sizeof(attrbuf))
188 memcpy(attrbuf, from, i);
198 l = util_strpcpy(&s, l, udev_device_get_devpath(dev));
199 dbg(event->udev, "substitute devpath '%s'\n", udev_device_get_devpath(dev));
202 l = util_strpcpy(&s, l, udev_device_get_sysname(dev));
203 dbg(event->udev, "substitute kernel name '%s'\n", udev_device_get_sysname(dev));
205 case SUBST_KERNEL_NUMBER:
206 if (udev_device_get_sysnum(dev) == NULL)
208 l = util_strpcpy(&s, l, udev_device_get_sysnum(dev));
209 dbg(event->udev, "substitute kernel number '%s'\n", udev_device_get_sysnum(dev));
212 if (event->dev_parent == NULL)
214 l = util_strpcpy(&s, l, udev_device_get_sysname(event->dev_parent));
215 dbg(event->udev, "substitute id '%s'\n", udev_device_get_sysname(event->dev_parent));
220 if (event->dev_parent == NULL)
223 driver = udev_device_get_driver(event->dev_parent);
226 l = util_strpcpy(&s, l, driver);
227 dbg(event->udev, "substitute driver '%s'\n", driver);
231 char num[UTIL_PATH_SIZE];
233 sprintf(num, "%d", major(udev_device_get_devnum(dev)));
234 l = util_strpcpy(&s, l, num);
235 dbg(event->udev, "substitute major number '%s'\n", num);
239 char num[UTIL_PATH_SIZE];
241 sprintf(num, "%d", minor(udev_device_get_devnum(dev)));
242 l = util_strpcpy(&s, l, num);
243 dbg(event->udev, "substitute minor number '%s'\n", num);
250 if (event->program_result == NULL)
252 /* get part part of the result string */
255 i = strtoul(attr, &rest, 10);
257 char result[UTIL_PATH_SIZE];
258 char tmp[UTIL_PATH_SIZE];
261 dbg(event->udev, "request part #%d of result string\n", i);
262 util_strscpy(result, sizeof(result), event->program_result);
265 while (cpos[0] != '\0' && !isspace(cpos[0]))
267 while (isspace(cpos[0]))
271 err(event->udev, "requested part of result string not found\n");
274 util_strscpy(tmp, sizeof(tmp), cpos);
275 /* %{2+}c copies the whole string from the second part on */
276 if (rest[0] != '+') {
277 cpos = strchr(tmp, ' ');
281 l = util_strpcpy(&s, l, tmp);
282 dbg(event->udev, "substitute part of result string '%s'\n", tmp);
284 l = util_strpcpy(&s, l, event->program_result);
285 dbg(event->udev, "substitute result string '%s'\n", event->program_result);
290 const char *value = NULL;
291 char vbuf[UTIL_NAME_SIZE];
296 err(event->udev, "missing file parameter for attr\n");
300 /* try to read the value specified by "[dmi/id]product_name" */
301 if (util_resolve_subsys_kernel(event->udev, attr, vbuf, sizeof(vbuf), 1) == 0)
304 /* try to read the attribute the device */
306 value = udev_device_get_sysattr_value(event->dev, attr);
308 /* try to read the attribute of the parent device, other matches have selected */
309 if (value == NULL && event->dev_parent != NULL && event->dev_parent != event->dev)
310 value = udev_device_get_sysattr_value(event->dev_parent, attr);
315 /* strip trailing whitespace, and replace unwanted characters */
317 util_strscpy(vbuf, sizeof(vbuf), value);
319 while (len > 0 && isspace(vbuf[--len]))
321 count = util_replace_chars(vbuf, UDEV_ALLOWED_CHARS_INPUT);
323 info(event->udev, "%i character(s) replaced\n" , count);
324 l = util_strpcpy(&s, l, vbuf);
325 dbg(event->udev, "substitute sysfs value '%s'\n", vbuf);
329 struct udev_device *dev_parent;
332 dev_parent = udev_device_get_parent(event->dev);
333 if (dev_parent == NULL)
335 devnode = udev_device_get_devnode(dev_parent);
336 if (devnode != NULL) {
337 size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
339 l = util_strpcpy(&s, l, &devnode[devlen]);
340 dbg(event->udev, "found parent '%s', got node name '%s'\n",
341 udev_device_get_syspath(dev_parent), &devnode[devlen]);
346 if (udev_device_get_devnode(dev) != NULL)
347 l = util_strpcpy(&s, l, udev_device_get_devnode(dev));
350 if (event->name != NULL) {
351 l = util_strpcpy(&s, l, event->name);
352 dbg(event->udev, "substitute custom node name '%s'\n", event->name);
353 } else if (udev_device_get_devnode(dev) != NULL) {
354 size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
356 l = util_strpcpy(&s, l, &udev_device_get_devnode(dev)[devlen]);
357 dbg(event->udev, "substitute node name'%s'\n", &udev_device_get_devnode(dev)[devlen]);
359 l = util_strpcpy(&s, l, udev_device_get_sysname(dev));
360 dbg(event->udev, "substitute device name'%s'\n", udev_device_get_sysname(dev));
365 size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
366 struct udev_list_entry *list_entry;
368 list_entry = udev_device_get_devlinks_list_entry(dev);
369 if (list_entry == NULL)
371 l = util_strpcpy(&s, l, &udev_list_entry_get_name(list_entry)[devlen]);
372 udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry))
373 l = util_strpcpyl(&s, l, " ", &udev_list_entry_get_name(list_entry)[devlen], NULL);
377 l = util_strpcpy(&s, l, udev_get_dev_path(event->udev));
378 dbg(event->udev, "substitute udev_root '%s'\n", udev_get_dev_path(event->udev));
381 l = util_strpcpy(&s, l, udev_get_sys_path(event->udev));
382 dbg(event->udev, "substitute sys_path '%s'\n", udev_get_sys_path(event->udev));
386 dbg(event->udev, "missing attribute\n");
391 value = udev_device_get_property_value(event->dev, attr);
394 dbg(event->udev, "substitute env '%s=%s'\n", attr, value);
395 l = util_strpcpy(&s, l, value);
399 err(event->udev, "unknown substitution type=%i\n", type);
406 dbg(event->udev, "'%s' -> '%s' (%zu)\n", src, dest, l);
410 static int spawn_exec(struct udev_event *event,
411 const char *cmd, char *const argv[], char **envp, const sigset_t *sigmask,
412 int fd_stdout, int fd_stderr)
414 struct udev *udev = event->udev;
418 /* discard child output or connect to pipe */
419 fd = open("/dev/null", O_RDWR);
421 dup2(fd, STDIN_FILENO);
423 dup2(fd, STDOUT_FILENO);
425 dup2(fd, STDERR_FILENO);
428 err(udev, "open /dev/null failed: %m\n");
431 /* connect pipes to std{out,err} */
432 if (fd_stdout >= 0) {
433 dup2(fd_stdout, STDOUT_FILENO);
436 if (fd_stderr >= 0) {
437 dup2(fd_stderr, STDERR_FILENO);
441 /* terminate child in case parent goes away */
442 prctl(PR_SET_PDEATHSIG, SIGTERM);
444 /* restore original udev sigmask before exec */
446 sigprocmask(SIG_SETMASK, sigmask, NULL);
448 execve(argv[0], argv, envp);
452 err(udev, "failed to execute '%s' '%s': %m\n", argv[0], cmd);
456 static void spawn_read(struct udev_event *event,
458 int fd_stdout, int fd_stderr,
459 char *result, size_t ressize)
461 struct udev *udev = event->udev;
464 struct epoll_event ep_outpipe, ep_errpipe;
466 /* read from child if requested */
467 if (fd_stdout < 0 && fd_stderr < 0)
470 fd_ep = epoll_create1(EPOLL_CLOEXEC);
472 err(udev, "error creating epoll fd: %m\n");
476 if (fd_stdout >= 0) {
477 memset(&ep_outpipe, 0, sizeof(struct epoll_event));
478 ep_outpipe.events = EPOLLIN;
479 ep_outpipe.data.ptr = &fd_stdout;
480 if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_stdout, &ep_outpipe) < 0) {
481 err(udev, "fail to add fd to epoll: %m\n");
486 if (fd_stderr >= 0) {
487 memset(&ep_errpipe, 0, sizeof(struct epoll_event));
488 ep_errpipe.events = EPOLLIN;
489 ep_errpipe.data.ptr = &fd_stderr;
490 if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_stderr, &ep_errpipe) < 0) {
491 err(udev, "fail to add fd to epoll: %m\n");
496 /* read child output */
497 while (fd_stdout >= 0 || fd_stderr >= 0) {
500 struct epoll_event ev[4];
503 if (event->timeout_usec > 0) {
504 unsigned long long age_usec;
506 age_usec = now_usec() - event->birth_usec;
507 if (age_usec >= event->timeout_usec) {
508 err(udev, "timeout '%s'\n", cmd);
511 timeout = ((event->timeout_usec - age_usec) / 1000) + 1000;
516 fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), timeout);
520 err(udev, "failed to poll: %m\n");
524 err(udev, "timeout '%s'\n", cmd);
528 for (i = 0; i < fdcount; i++) {
529 int *fd = (int *)ev[i].data.ptr;
531 if (ev[i].events & EPOLLIN) {
535 count = read(*fd, buf, sizeof(buf)-1);
540 /* store stdout result */
541 if (result != NULL && *fd == fd_stdout) {
542 if (respos + count < ressize) {
543 memcpy(&result[respos], buf, count);
546 err(udev, "'%s' ressize %zd too short\n", cmd, ressize);
550 /* log debug output only if we watch stderr */
551 if (fd_stderr >= 0) {
556 while ((line = strsep(&pos, "\n"))) {
557 if (pos != NULL || line[0] != '\0')
558 info(udev, "'%s'(%s) '%s'\n", cmd, *fd == fd_stdout ? "out" : "err" , line);
561 } else if (ev[i].events & EPOLLHUP) {
562 if (epoll_ctl(fd_ep, EPOLL_CTL_DEL, *fd, NULL) < 0) {
563 err(udev, "failed to remove fd from epoll: %m\n");
571 /* return the child's stdout string */
572 if (result != NULL) {
573 result[respos] = '\0';
574 dbg(udev, "result='%s'\n", result);
581 static int spawn_wait(struct udev_event *event, const char *cmd, pid_t pid)
583 struct udev *udev = event->udev;
584 struct pollfd pfd[1];
587 pfd[0].events = POLLIN;
588 pfd[0].fd = event->fd_signal;
594 if (event->timeout_usec > 0) {
595 unsigned long long age_usec;
597 age_usec = now_usec() - event->birth_usec;
598 if (age_usec >= event->timeout_usec)
601 timeout = ((event->timeout_usec - age_usec) / 1000) + 1000;
606 fdcount = poll(pfd, 1, timeout);
611 err(udev, "failed to poll: %m\n");
615 err(udev, "timeout: killing '%s' [%u]\n", cmd, pid);
619 if (pfd[0].revents & POLLIN) {
620 struct signalfd_siginfo fdsi;
624 size = read(event->fd_signal, &fdsi, sizeof(struct signalfd_siginfo));
625 if (size != sizeof(struct signalfd_siginfo))
628 switch (fdsi.ssi_signo) {
630 event->sigterm = true;
633 if (waitpid(pid, &status, WNOHANG) < 0)
635 if (WIFEXITED(status)) {
636 info(udev, "'%s' [%u] exit with return code %i\n", cmd, pid, WEXITSTATUS(status));
637 if (WEXITSTATUS(status) != 0)
639 } else if (WIFSIGNALED(status)) {
640 err(udev, "'%s' [%u] terminated by signal %i (%s)\n", cmd, pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
642 } else if (WIFSTOPPED(status)) {
643 err(udev, "'%s' [%u] stopped\n", cmd, pid);
645 } else if (WIFCONTINUED(status)) {
646 err(udev, "'%s' [%u] continued\n", cmd, pid);
649 err(udev, "'%s' [%u] exit with status 0x%04x\n", cmd, pid, status);
661 int udev_build_argv(struct udev *udev, char *cmd, int *argc, char *argv[])
666 if (strchr(cmd, ' ') == NULL) {
672 while (pos != NULL && pos[0] != '\0') {
673 if (pos[0] == '\'') {
674 /* do not separate quotes */
676 argv[i] = strsep(&pos, "\'");
678 while (pos[0] == ' ')
681 argv[i] = strsep(&pos, " ");
683 while (pos[0] == ' ')
686 dbg(udev, "argv[%i] '%s'\n", i, argv[i]);
696 int udev_event_spawn(struct udev_event *event,
697 const char *cmd, char **envp, const sigset_t *sigmask,
698 char *result, size_t ressize)
700 struct udev *udev = event->udev;
701 int outpipe[2] = {-1, -1};
702 int errpipe[2] = {-1, -1};
704 char arg[UTIL_PATH_SIZE];
706 char program[UTIL_PATH_SIZE];
709 util_strscpy(arg, sizeof(arg), cmd);
710 udev_build_argv(event->udev, arg, NULL, argv);
712 /* pipes from child to parent */
713 if (result != NULL || udev_get_log_priority(udev) >= LOG_INFO) {
714 if (pipe2(outpipe, O_NONBLOCK) != 0) {
716 err(udev, "pipe failed: %m\n");
720 if (udev_get_log_priority(udev) >= LOG_INFO) {
721 if (pipe2(errpipe, O_NONBLOCK) != 0) {
723 err(udev, "pipe failed: %m\n");
728 /* allow programs in /usr/lib/udev/ to be called without the path */
729 if (argv[0][0] != '/') {
730 util_strscpyl(program, sizeof(program), UDEVLIBEXECDIR "/", argv[0], NULL);
737 /* child closes parent's ends of pipes */
738 if (outpipe[READ_END] >= 0) {
739 close(outpipe[READ_END]);
740 outpipe[READ_END] = -1;
742 if (errpipe[READ_END] >= 0) {
743 close(errpipe[READ_END]);
744 errpipe[READ_END] = -1;
747 info(udev, "starting '%s'\n", cmd);
749 err = spawn_exec(event, cmd, argv, envp, sigmask,
750 outpipe[WRITE_END], errpipe[WRITE_END]);
754 err(udev, "fork of '%s' failed: %m\n", cmd);
758 /* parent closed child's ends of pipes */
759 if (outpipe[WRITE_END] >= 0) {
760 close(outpipe[WRITE_END]);
761 outpipe[WRITE_END] = -1;
763 if (errpipe[WRITE_END] >= 0) {
764 close(errpipe[WRITE_END]);
765 errpipe[WRITE_END] = -1;
768 spawn_read(event, cmd,
769 outpipe[READ_END], errpipe[READ_END],
772 err = spawn_wait(event, cmd, pid);
776 if (outpipe[READ_END] >= 0)
777 close(outpipe[READ_END]);
778 if (outpipe[WRITE_END] >= 0)
779 close(outpipe[WRITE_END]);
780 if (errpipe[READ_END] >= 0)
781 close(errpipe[READ_END]);
782 if (errpipe[WRITE_END] >= 0)
783 close(errpipe[WRITE_END]);
787 static void rename_netif_kernel_log(struct ifreq ifr)
792 klog = open("/dev/kmsg", O_WRONLY);
796 f = fdopen(klog, "w");
802 fprintf(f, "<30>udevd[%u]: renamed network interface %s to %s\n",
803 getpid(), ifr.ifr_name, ifr.ifr_newname);
807 static int rename_netif(struct udev_event *event)
809 struct udev_device *dev = event->dev;
815 info(event->udev, "changing net interface name from '%s' to '%s'\n",
816 udev_device_get_sysname(dev), event->name);
818 sk = socket(PF_INET, SOCK_DGRAM, 0);
821 err(event->udev, "error opening socket: %m\n");
825 memset(&ifr, 0x00, sizeof(struct ifreq));
826 util_strscpy(ifr.ifr_name, IFNAMSIZ, udev_device_get_sysname(dev));
827 util_strscpy(ifr.ifr_newname, IFNAMSIZ, event->name);
828 err = ioctl(sk, SIOCSIFNAME, &ifr);
830 rename_netif_kernel_log(ifr);
834 /* keep trying if the destination interface name already exists */
839 /* free our own name, another process may wait for us */
840 snprintf(ifr.ifr_newname, IFNAMSIZ, "rename%u", udev_device_get_ifindex(dev));
841 err = ioctl(sk, SIOCSIFNAME, &ifr);
847 /* log temporary name */
848 rename_netif_kernel_log(ifr);
850 /* wait a maximum of 90 seconds for our target to become available */
851 util_strscpy(ifr.ifr_name, IFNAMSIZ, ifr.ifr_newname);
852 util_strscpy(ifr.ifr_newname, IFNAMSIZ, event->name);
855 const struct timespec duration = { 0, 1000 * 1000 * 1000 / 20 };
857 dbg(event->udev, "wait for netif '%s' to become free, loop=%i\n",
858 event->name, (90 * 20) - loop);
859 nanosleep(&duration, NULL);
861 err = ioctl(sk, SIOCSIFNAME, &ifr);
863 rename_netif_kernel_log(ifr);
873 err(event->udev, "error changing net interface name %s to %s: %m\n", ifr.ifr_name, ifr.ifr_newname);
878 int udev_event_execute_rules(struct udev_event *event, struct udev_rules *rules, const sigset_t *sigmask)
880 struct udev_device *dev = event->dev;
883 if (udev_device_get_subsystem(dev) == NULL)
886 if (strcmp(udev_device_get_action(dev), "remove") == 0) {
887 udev_device_read_db(dev, NULL);
888 udev_device_delete_db(dev);
889 udev_device_tag_index(dev, NULL, false);
891 if (major(udev_device_get_devnum(dev)) != 0)
892 udev_watch_end(event->udev, dev);
894 udev_rules_apply_to_event(rules, event, sigmask);
896 if (major(udev_device_get_devnum(dev)) != 0)
897 udev_node_remove(dev);
899 event->dev_db = udev_device_new_from_syspath(event->udev, udev_device_get_syspath(dev));
900 if (event->dev_db != NULL) {
901 udev_device_read_db(event->dev_db, NULL);
902 udev_device_set_info_loaded(event->dev_db);
904 /* disable watch during event processing */
905 if (major(udev_device_get_devnum(dev)) != 0)
906 udev_watch_end(event->udev, event->dev_db);
909 udev_rules_apply_to_event(rules, event, sigmask);
911 /* rename a new network interface, if needed */
912 if (udev_device_get_ifindex(dev) > 0 && strcmp(udev_device_get_action(dev), "add") == 0 &&
913 event->name != NULL && strcmp(event->name, udev_device_get_sysname(dev)) != 0) {
914 char syspath[UTIL_PATH_SIZE];
917 err = rename_netif(event);
919 info(event->udev, "renamed netif to '%s'\n", event->name);
921 /* remember old name */
922 udev_device_add_property(dev, "INTERFACE_OLD", udev_device_get_sysname(dev));
924 /* now change the devpath, because the kernel device name has changed */
925 util_strscpy(syspath, sizeof(syspath), udev_device_get_syspath(dev));
926 pos = strrchr(syspath, '/');
929 util_strscpy(pos, sizeof(syspath) - (pos - syspath), event->name);
930 udev_device_set_syspath(event->dev, syspath);
931 udev_device_add_property(dev, "INTERFACE", udev_device_get_sysname(dev));
932 info(event->udev, "changed devpath to '%s'\n", udev_device_get_devpath(dev));
937 if (major(udev_device_get_devnum(dev)) > 0) {
938 /* remove/update possible left-over symlinks from old database entry */
939 if (event->dev_db != NULL)
940 udev_node_update_old_links(dev, event->dev_db);
942 if (!event->mode_set) {
943 if (udev_device_get_devnode_mode(dev) > 0) {
944 /* kernel supplied value */
945 event->mode = udev_device_get_devnode_mode(dev);
946 } else if (event->gid > 0) {
947 /* default 0660 if a group is assigned */
955 udev_node_add(dev, event->mode, event->uid, event->gid);
958 /* preserve old, or get new initialization timestamp */
959 if (event->dev_db != NULL && udev_device_get_usec_initialized(event->dev_db) > 0)
960 udev_device_set_usec_initialized(event->dev, udev_device_get_usec_initialized(event->dev_db));
961 else if (udev_device_get_usec_initialized(event->dev) == 0)
962 udev_device_set_usec_initialized(event->dev, now_usec());
964 /* (re)write database file */
965 udev_device_update_db(dev);
966 udev_device_tag_index(dev, event->dev_db, true);
967 udev_device_set_is_initialized(dev);
969 udev_device_unref(event->dev_db);
970 event->dev_db = NULL;
976 int udev_event_execute_run(struct udev_event *event, const sigset_t *sigmask)
978 struct udev_list_entry *list_entry;
981 dbg(event->udev, "executing run list\n");
982 udev_list_entry_foreach(list_entry, udev_list_get_entry(&event->run_list)) {
983 const char *cmd = udev_list_entry_get_name(list_entry);
985 if (strncmp(cmd, "socket:", strlen("socket:")) == 0) {
986 struct udev_monitor *monitor;
988 monitor = udev_monitor_new_from_socket(event->udev, &cmd[strlen("socket:")]);
991 udev_monitor_send_device(monitor, NULL, event->dev);
992 udev_monitor_unref(monitor);
994 char program[UTIL_PATH_SIZE];
997 if (event->exec_delay > 0) {
998 info(event->udev, "delay execution of '%s'\n", program);
999 sleep(event->exec_delay);
1002 udev_event_apply_format(event, cmd, program, sizeof(program));
1003 envp = udev_device_get_properties_envp(event->dev);
1004 if (udev_event_spawn(event, program, envp, sigmask, NULL, 0) < 0) {
1005 if (udev_list_entry_get_num(list_entry))