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 name '%s'\n", event->name);
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 name'%s'\n", &udev_device_get_devnode(dev)[devlen]);
362 size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
363 struct udev_list_entry *list_entry;
365 list_entry = udev_device_get_devlinks_list_entry(dev);
366 if (list_entry == NULL)
368 l = util_strpcpy(&s, l, &udev_list_entry_get_name(list_entry)[devlen]);
369 udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry))
370 l = util_strpcpyl(&s, l, " ", &udev_list_entry_get_name(list_entry)[devlen], NULL);
374 l = util_strpcpy(&s, l, udev_get_dev_path(event->udev));
375 dbg(event->udev, "substitute udev_root '%s'\n", udev_get_dev_path(event->udev));
378 l = util_strpcpy(&s, l, udev_get_sys_path(event->udev));
379 dbg(event->udev, "substitute sys_path '%s'\n", udev_get_sys_path(event->udev));
383 dbg(event->udev, "missing attribute\n");
388 value = udev_device_get_property_value(event->dev, attr);
391 dbg(event->udev, "substitute env '%s=%s'\n", attr, value);
392 l = util_strpcpy(&s, l, value);
396 err(event->udev, "unknown substitution type=%i\n", type);
403 dbg(event->udev, "'%s' -> '%s' (%zu)\n", src, dest, l);
407 static int spawn_exec(struct udev_event *event,
408 const char *cmd, char *const argv[], char **envp, const sigset_t *sigmask,
409 int fd_stdout, int fd_stderr)
411 struct udev *udev = event->udev;
415 /* discard child output or connect to pipe */
416 fd = open("/dev/null", O_RDWR);
418 dup2(fd, STDIN_FILENO);
420 dup2(fd, STDOUT_FILENO);
422 dup2(fd, STDERR_FILENO);
425 err(udev, "open /dev/null failed: %m\n");
428 /* connect pipes to std{out,err} */
429 if (fd_stdout >= 0) {
430 dup2(fd_stdout, STDOUT_FILENO);
433 if (fd_stderr >= 0) {
434 dup2(fd_stderr, STDERR_FILENO);
438 /* terminate child in case parent goes away */
439 prctl(PR_SET_PDEATHSIG, SIGTERM);
441 /* restore original udev sigmask before exec */
443 sigprocmask(SIG_SETMASK, sigmask, NULL);
445 execve(argv[0], argv, envp);
449 err(udev, "failed to execute '%s' '%s': %m\n", argv[0], cmd);
453 static void spawn_read(struct udev_event *event,
455 int fd_stdout, int fd_stderr,
456 char *result, size_t ressize)
458 struct udev *udev = event->udev;
461 struct epoll_event ep_outpipe, ep_errpipe;
463 /* read from child if requested */
464 if (fd_stdout < 0 && fd_stderr < 0)
467 fd_ep = epoll_create1(EPOLL_CLOEXEC);
469 err(udev, "error creating epoll fd: %m\n");
473 if (fd_stdout >= 0) {
474 memset(&ep_outpipe, 0, sizeof(struct epoll_event));
475 ep_outpipe.events = EPOLLIN;
476 ep_outpipe.data.ptr = &fd_stdout;
477 if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_stdout, &ep_outpipe) < 0) {
478 err(udev, "fail to add fd to epoll: %m\n");
483 if (fd_stderr >= 0) {
484 memset(&ep_errpipe, 0, sizeof(struct epoll_event));
485 ep_errpipe.events = EPOLLIN;
486 ep_errpipe.data.ptr = &fd_stderr;
487 if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_stderr, &ep_errpipe) < 0) {
488 err(udev, "fail to add fd to epoll: %m\n");
493 /* read child output */
494 while (fd_stdout >= 0 || fd_stderr >= 0) {
497 struct epoll_event ev[4];
500 if (event->timeout_usec > 0) {
501 unsigned long long age_usec;
503 age_usec = now_usec() - event->birth_usec;
504 if (age_usec >= event->timeout_usec) {
505 err(udev, "timeout '%s'\n", cmd);
508 timeout = ((event->timeout_usec - age_usec) / 1000) + 1000;
513 fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), timeout);
517 err(udev, "failed to poll: %m\n");
521 err(udev, "timeout '%s'\n", cmd);
525 for (i = 0; i < fdcount; i++) {
526 int *fd = (int *)ev[i].data.ptr;
528 if (ev[i].events & EPOLLIN) {
532 count = read(*fd, buf, sizeof(buf)-1);
537 /* store stdout result */
538 if (result != NULL && *fd == fd_stdout) {
539 if (respos + count < ressize) {
540 memcpy(&result[respos], buf, count);
543 err(udev, "'%s' ressize %zd too short\n", cmd, ressize);
547 /* log debug output only if we watch stderr */
548 if (fd_stderr >= 0) {
553 while ((line = strsep(&pos, "\n"))) {
554 if (pos != NULL || line[0] != '\0')
555 info(udev, "'%s'(%s) '%s'\n", cmd, *fd == fd_stdout ? "out" : "err" , line);
558 } else if (ev[i].events & EPOLLHUP) {
559 if (epoll_ctl(fd_ep, EPOLL_CTL_DEL, *fd, NULL) < 0) {
560 err(udev, "failed to remove fd from epoll: %m\n");
568 /* return the child's stdout string */
569 if (result != NULL) {
570 result[respos] = '\0';
571 dbg(udev, "result='%s'\n", result);
578 static int spawn_wait(struct udev_event *event, const char *cmd, pid_t pid)
580 struct udev *udev = event->udev;
581 struct pollfd pfd[1];
584 pfd[0].events = POLLIN;
585 pfd[0].fd = event->fd_signal;
591 if (event->timeout_usec > 0) {
592 unsigned long long age_usec;
594 age_usec = now_usec() - event->birth_usec;
595 if (age_usec >= event->timeout_usec)
598 timeout = ((event->timeout_usec - age_usec) / 1000) + 1000;
603 fdcount = poll(pfd, 1, timeout);
608 err(udev, "failed to poll: %m\n");
612 err(udev, "timeout: killing '%s' [%u]\n", cmd, pid);
616 if (pfd[0].revents & POLLIN) {
617 struct signalfd_siginfo fdsi;
621 size = read(event->fd_signal, &fdsi, sizeof(struct signalfd_siginfo));
622 if (size != sizeof(struct signalfd_siginfo))
625 switch (fdsi.ssi_signo) {
627 event->sigterm = true;
630 if (waitpid(pid, &status, WNOHANG) < 0)
632 if (WIFEXITED(status)) {
633 info(udev, "'%s' [%u] exit with return code %i\n", cmd, pid, WEXITSTATUS(status));
634 if (WEXITSTATUS(status) != 0)
636 } else if (WIFSIGNALED(status)) {
637 err(udev, "'%s' [%u] terminated by signal %i (%s)\n", cmd, pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
639 } else if (WIFSTOPPED(status)) {
640 err(udev, "'%s' [%u] stopped\n", cmd, pid);
642 } else if (WIFCONTINUED(status)) {
643 err(udev, "'%s' [%u] continued\n", cmd, pid);
646 err(udev, "'%s' [%u] exit with status 0x%04x\n", cmd, pid, status);
658 int udev_build_argv(struct udev *udev, char *cmd, int *argc, char *argv[])
663 if (strchr(cmd, ' ') == NULL) {
669 while (pos != NULL && pos[0] != '\0') {
670 if (pos[0] == '\'') {
671 /* do not separate quotes */
673 argv[i] = strsep(&pos, "\'");
675 while (pos[0] == ' ')
678 argv[i] = strsep(&pos, " ");
680 while (pos[0] == ' ')
683 dbg(udev, "argv[%i] '%s'\n", i, argv[i]);
693 int udev_event_spawn(struct udev_event *event,
694 const char *cmd, char **envp, const sigset_t *sigmask,
695 char *result, size_t ressize)
697 struct udev *udev = event->udev;
698 int outpipe[2] = {-1, -1};
699 int errpipe[2] = {-1, -1};
701 char arg[UTIL_PATH_SIZE];
703 char program[UTIL_PATH_SIZE];
706 util_strscpy(arg, sizeof(arg), cmd);
707 udev_build_argv(event->udev, arg, NULL, argv);
709 /* pipes from child to parent */
710 if (result != NULL || udev_get_log_priority(udev) >= LOG_INFO) {
711 if (pipe2(outpipe, O_NONBLOCK) != 0) {
713 err(udev, "pipe failed: %m\n");
717 if (udev_get_log_priority(udev) >= LOG_INFO) {
718 if (pipe2(errpipe, O_NONBLOCK) != 0) {
720 err(udev, "pipe failed: %m\n");
725 /* allow programs in /usr/lib/udev/ to be called without the path */
726 if (argv[0][0] != '/') {
727 util_strscpyl(program, sizeof(program), PKGLIBEXECDIR "/", argv[0], NULL);
734 /* child closes parent's ends of pipes */
735 if (outpipe[READ_END] >= 0) {
736 close(outpipe[READ_END]);
737 outpipe[READ_END] = -1;
739 if (errpipe[READ_END] >= 0) {
740 close(errpipe[READ_END]);
741 errpipe[READ_END] = -1;
744 info(udev, "starting '%s'\n", cmd);
746 err = spawn_exec(event, cmd, argv, envp, sigmask,
747 outpipe[WRITE_END], errpipe[WRITE_END]);
751 err(udev, "fork of '%s' failed: %m\n", cmd);
755 /* parent closed child's ends of pipes */
756 if (outpipe[WRITE_END] >= 0) {
757 close(outpipe[WRITE_END]);
758 outpipe[WRITE_END] = -1;
760 if (errpipe[WRITE_END] >= 0) {
761 close(errpipe[WRITE_END]);
762 errpipe[WRITE_END] = -1;
765 spawn_read(event, cmd,
766 outpipe[READ_END], errpipe[READ_END],
769 err = spawn_wait(event, cmd, pid);
773 if (outpipe[READ_END] >= 0)
774 close(outpipe[READ_END]);
775 if (outpipe[WRITE_END] >= 0)
776 close(outpipe[WRITE_END]);
777 if (errpipe[READ_END] >= 0)
778 close(errpipe[READ_END]);
779 if (errpipe[WRITE_END] >= 0)
780 close(errpipe[WRITE_END]);
784 static void rename_netif_kernel_log(struct ifreq ifr)
789 klog = open("/dev/kmsg", O_WRONLY);
793 f = fdopen(klog, "w");
799 fprintf(f, "<30>udevd[%u]: renamed network interface %s to %s\n",
800 getpid(), ifr.ifr_name, ifr.ifr_newname);
804 static int rename_netif(struct udev_event *event)
806 struct udev_device *dev = event->dev;
812 info(event->udev, "changing net interface name from '%s' to '%s'\n",
813 udev_device_get_sysname(dev), event->name);
815 sk = socket(PF_INET, SOCK_DGRAM, 0);
818 err(event->udev, "error opening socket: %m\n");
822 memset(&ifr, 0x00, sizeof(struct ifreq));
823 util_strscpy(ifr.ifr_name, IFNAMSIZ, udev_device_get_sysname(dev));
824 util_strscpy(ifr.ifr_newname, IFNAMSIZ, event->name);
825 err = ioctl(sk, SIOCSIFNAME, &ifr);
827 rename_netif_kernel_log(ifr);
831 /* keep trying if the destination interface name already exists */
836 /* free our own name, another process may wait for us */
837 snprintf(ifr.ifr_newname, IFNAMSIZ, "rename%u", udev_device_get_ifindex(dev));
838 err = ioctl(sk, SIOCSIFNAME, &ifr);
844 /* log temporary name */
845 rename_netif_kernel_log(ifr);
847 /* wait a maximum of 90 seconds for our target to become available */
848 util_strscpy(ifr.ifr_name, IFNAMSIZ, ifr.ifr_newname);
849 util_strscpy(ifr.ifr_newname, IFNAMSIZ, event->name);
852 const struct timespec duration = { 0, 1000 * 1000 * 1000 / 20 };
854 dbg(event->udev, "wait for netif '%s' to become free, loop=%i\n",
855 event->name, (90 * 20) - loop);
856 nanosleep(&duration, NULL);
858 err = ioctl(sk, SIOCSIFNAME, &ifr);
860 rename_netif_kernel_log(ifr);
870 err(event->udev, "error changing net interface name %s to %s: %m\n", ifr.ifr_name, ifr.ifr_newname);
875 int udev_event_execute_rules(struct udev_event *event, struct udev_rules *rules, const sigset_t *sigmask)
877 struct udev_device *dev = event->dev;
880 if (udev_device_get_subsystem(dev) == NULL)
883 if (strcmp(udev_device_get_action(dev), "remove") == 0) {
884 udev_device_read_db(dev, NULL);
885 udev_device_delete_db(dev);
886 udev_device_tag_index(dev, NULL, false);
888 if (major(udev_device_get_devnum(dev)) != 0)
889 udev_watch_end(event->udev, dev);
891 udev_rules_apply_to_event(rules, event, sigmask);
893 if (major(udev_device_get_devnum(dev)) != 0)
894 err = udev_node_remove(dev);
896 event->dev_db = udev_device_new_from_syspath(event->udev, udev_device_get_syspath(dev));
897 if (event->dev_db != NULL) {
898 udev_device_read_db(event->dev_db, NULL);
899 udev_device_set_info_loaded(event->dev_db);
901 /* disable watch during event processing */
902 if (major(udev_device_get_devnum(dev)) != 0)
903 udev_watch_end(event->udev, event->dev_db);
906 udev_rules_apply_to_event(rules, event, sigmask);
908 /* rename a new network interface, if needed */
909 if (udev_device_get_ifindex(dev) > 0 && strcmp(udev_device_get_action(dev), "add") == 0 &&
910 event->name != NULL && strcmp(event->name, udev_device_get_sysname(dev)) != 0) {
911 char syspath[UTIL_PATH_SIZE];
914 err = rename_netif(event);
916 info(event->udev, "renamed netif to '%s'\n", event->name);
918 /* remember old name */
919 udev_device_add_property(dev, "INTERFACE_OLD", udev_device_get_sysname(dev));
921 /* now change the devpath, because the kernel device name has changed */
922 util_strscpy(syspath, sizeof(syspath), udev_device_get_syspath(dev));
923 pos = strrchr(syspath, '/');
926 util_strscpy(pos, sizeof(syspath) - (pos - syspath), event->name);
927 udev_device_set_syspath(event->dev, syspath);
928 udev_device_add_property(dev, "INTERFACE", udev_device_get_sysname(dev));
929 info(event->udev, "changed devpath to '%s'\n", udev_device_get_devpath(dev));
934 if (major(udev_device_get_devnum(dev)) > 0) {
935 /* remove/update possible left-over symlinks from old database entry */
936 if (event->dev_db != NULL)
937 udev_node_update_old_links(dev, event->dev_db);
939 if (!event->mode_set) {
940 if (udev_device_get_devnode_mode(dev) > 0) {
941 /* kernel supplied value */
942 event->mode = udev_device_get_devnode_mode(dev);
943 } else if (event->gid > 0) {
944 /* default 0660 if a group is assigned */
952 err = udev_node_add(dev, event->mode, event->uid, event->gid);
955 /* preserve old, or get new initialization timestamp */
956 if (event->dev_db != NULL && udev_device_get_usec_initialized(event->dev_db) > 0)
957 udev_device_set_usec_initialized(event->dev, udev_device_get_usec_initialized(event->dev_db));
958 else if (udev_device_get_usec_initialized(event->dev) == 0)
959 udev_device_set_usec_initialized(event->dev, now_usec());
961 /* (re)write database file */
962 udev_device_update_db(dev);
963 udev_device_tag_index(dev, event->dev_db, true);
964 udev_device_set_is_initialized(dev);
966 udev_device_unref(event->dev_db);
967 event->dev_db = NULL;
973 int udev_event_execute_run(struct udev_event *event, const sigset_t *sigmask)
975 struct udev_list_entry *list_entry;
978 dbg(event->udev, "executing run list\n");
979 udev_list_entry_foreach(list_entry, udev_list_get_entry(&event->run_list)) {
980 const char *cmd = udev_list_entry_get_name(list_entry);
982 if (strncmp(cmd, "socket:", strlen("socket:")) == 0) {
983 struct udev_monitor *monitor;
985 monitor = udev_monitor_new_from_socket(event->udev, &cmd[strlen("socket:")]);
988 udev_monitor_send_device(monitor, NULL, event->dev);
989 udev_monitor_unref(monitor);
991 char program[UTIL_PATH_SIZE];
994 if (event->exec_delay > 0) {
995 info(event->udev, "delay execution of '%s'\n", program);
996 sleep(event->exec_delay);
999 udev_event_apply_format(event, cmd, program, sizeof(program));
1000 envp = udev_device_get_properties_envp(event->dev);
1001 if (udev_event_spawn(event, program, envp, sigmask, NULL, 0) < 0) {
1002 if (udev_list_entry_get_num(list_entry))