6 * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation version 2 of the License.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 675 Mass Ave, Cambridge, MA 02139, USA.
31 #include "libsysfs/sysfs/libsysfs.h"
34 #include "udev_version.h"
39 /* global variables */
44 static int is_udevstart;
47 unsigned char logname[LOGNAME_SIZE];
48 void log_message(int level, const char *format, ...)
55 va_start(args, format);
56 vsyslog(level, format, args);
61 asmlinkage static void sig_handler(int signum)
69 dbg("unhandled signal %d", signum);
73 static char *subsystem_blacklist[] = {
82 int __udev_hotplug(char *action, const char *devpath, const char *subsystem)
89 dbg("looking at '%s'", devpath);
91 /* we only care about class devices and block stuff */
92 if (!strstr(devpath, "class") &&
93 !strstr(devpath, "block")) {
94 dbg("not a block or class device");
99 while (subsystem_blacklist[i][0] != '\0') {
100 if (strcmp(subsystem, subsystem_blacklist[i]) == 0) {
101 dbg("don't care about '%s' devices", subsystem);
107 /* initialize udev database */
108 retval = udevdb_init(UDEVDB_DEFAULT);
110 dbg("unable to initialize database");
114 /* set signal handlers */
115 act.sa_handler = sig_handler;
116 sigemptyset (&act.sa_mask);
117 act.sa_flags = SA_RESTART;
118 sigaction(SIGINT, &act, NULL);
119 sigaction(SIGTERM, &act, NULL);
121 if (strcmp(action, "add") == 0) {
125 retval = udev_add_device(devpath, subsystem, nofake);
129 if (strcmp(action, "remove") == 0) {
130 retval = udev_remove_device(devpath, subsystem);
134 dbg("unknown action '%s'", action);
144 static int udev_hotplug(void)
150 action = get_action();
156 devpath = get_devpath();
162 /* skip blacklisted subsystems */
163 subsystem = get_subsystem(main_argv[1]);
165 dbg("no subsystem?");
169 return __udev_hotplug(action, devpath, subsystem);
172 int main(int argc, char *argv[], char *envp[])
177 if (strstr(argv[0], "udevstart")) {
178 /* Setup env variables. */
179 setenv("UDEV_NO_SLEEP", "1", 1);
183 /* initialize our configuration */
186 dbg("version %s", UDEV_VERSION);
192 return udev_hotplug();