/* * Copyright (C) 2003-2004 Greg Kroah-Hartman * Copyright (C) 2004-2008 Kay Sievers * * 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 . */ #include #include #include #include #include #include #include #include #include #include #include #include "udev.h" void udev_main_log(struct udev *udev, int priority, const char *file, int line, const char *fn, const char *format, va_list args) {} int main(int argc, char *argv[]) { struct udev *udev; struct udev_event *event = NULL; struct udev_device *dev = NULL; struct udev_rules *rules = NULL; char syspath[UTIL_PATH_SIZE]; const char *devpath; const char *action; sigset_t mask, sigmask_orig; int err = -EINVAL; udev = udev_new(); if (udev == NULL) exit(EXIT_FAILURE); log_debug("version %s\n", VERSION); udev_selinux_init(udev); sigprocmask(SIG_SETMASK, NULL, &sigmask_orig); action = argv[1]; if (action == NULL) { log_error("action missing\n"); goto out; } devpath = argv[2]; if (devpath == NULL) { log_error("devpath missing\n"); goto out; } rules = udev_rules_new(udev, 1); util_strscpyl(syspath, sizeof(syspath), TEST_PREFIX "/sys", devpath, NULL); dev = udev_device_new_from_syspath(udev, syspath); if (dev == NULL) { log_debug("unknown device '%s'\n", devpath); goto out; } udev_device_set_action(dev, action); event = udev_event_new(dev); sigfillset(&mask); sigprocmask(SIG_SETMASK, &mask, &sigmask_orig); event->fd_signal = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); if (event->fd_signal < 0) { fprintf(stderr, "error creating signalfd\n"); goto out; } /* do what devtmpfs usually provides us */ if (udev_device_get_devnode(dev) != NULL) { mode_t mode = 0600; if (strcmp(udev_device_get_subsystem(dev), "block") == 0) mode |= S_IFBLK; else mode |= S_IFCHR; if (strcmp(action, "remove") != 0) { mkdir_parents(udev_device_get_devnode(dev), 0755); mknod(udev_device_get_devnode(dev), mode, udev_device_get_devnum(dev)); } else { unlink(udev_device_get_devnode(dev)); util_delete_path(udev, udev_device_get_devnode(dev)); } } err = udev_event_execute_rules(event, rules, &sigmask_orig); if (err == 0) udev_event_execute_run(event, NULL); out: if (event != NULL && event->fd_signal >= 0) close(event->fd_signal); udev_event_unref(event); udev_device_unref(dev); udev_rules_unref(rules); udev_selinux_exit(udev); udev_unref(udev); if (err != 0) return EXIT_FAILURE; return EXIT_SUCCESS; }