/*
- * udev.c
- *
- * Userspace devfs
- *
- * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
*
* 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
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
#include <errno.h>
#include <ctype.h>
+#include <fcntl.h>
#include <signal.h>
+#include <syslog.h>
+#include <getopt.h>
-#include "libsysfs/sysfs/libsysfs.h"
#include "udev.h"
-#include "udev_version.h"
-#include "logging.h"
-#include "namedev.h"
-
-/* global variables */
-char **main_argv;
-char **main_envp;
+#include "udev_rules.h"
-#ifdef LOG
-unsigned char logname[42];
-void log_message (int level, const char *format, ...)
+static int import_uevent_var(const char *devpath)
{
- va_list args;
-
-// if (!udev_log)
-// return;
-
- /* FIXME use level... */
- va_start(args, format);
- vprintf(format, args);
- va_end(args);
- if (format[strlen(format)-1] != '\n')
- printf("\n");
-}
-#endif
-
-static void sig_handler(int signum)
-{
- switch (signum) {
- case SIGINT:
- case SIGTERM:
- exit(20 + signum);
- default:
- dbg("unhandled signal");
+ char path[PATH_SIZE];
+ static char value[4096]; /* must stay, used with putenv */
+ ssize_t size;
+ int fd;
+ char *key;
+ char *next;
+ int rc = -1;
+
+ /* read uevent file */
+ strlcpy(path, sysfs_path, sizeof(path));
+ strlcat(path, devpath, sizeof(path));
+ strlcat(path, "/uevent", sizeof(path));
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ goto out;
+ size = read(fd, value, sizeof(value));
+ close(fd);
+ if (size < 0)
+ goto out;
+ value[size] = '\0';
+
+ /* import keys into environment */
+ key = value;
+ while (key[0] != '\0') {
+ next = strchr(key, '\n');
+ if (next == NULL)
+ goto out;
+ next[0] = '\0';
+ info("import into environment: '%s'", key);
+ putenv(key);
+ key = &next[1];
}
+ rc = 0;
+out:
+ return rc;
}
-static inline char *get_action(void)
+int udevtest(int argc, char *argv[], char *envp[])
{
- char *action;
-
- action = getenv("ACTION");
- return action;
-}
+ int force = 0;
+ const char *action = "add";
+ const char *subsystem = NULL;
+ const char *devpath = NULL;
+ struct udevice *udev;
+ struct sysfs_device *dev;
+ struct udev_rules rules = {};
+ int retval;
+ int rc = 0;
+
+ static const struct option options[] = {
+ { "action", 1, NULL, 'a' },
+ { "subsystem", 1, NULL, 's' },
+ { "force", 0, NULL, 'f' },
+ { "help", 0, NULL, 'h' },
+ {}
+ };
+
+ info("version %s", UDEV_VERSION);
+ udev_config_init();
+ if (udev_log_priority < LOG_INFO) {
+ char priority[32];
+
+ udev_log_priority = LOG_INFO;
+ sprintf(priority, "%i", udev_log_priority);
+ setenv("UDEV_LOG", priority, 1);
+ }
-static inline char *get_devpath(void)
-{
- char *devpath;
+ while (1) {
+ int option;
+
+ option = getopt_long(argc, argv, "a:s:fh", options, NULL);
+ if (option == -1)
+ break;
+
+ dbg("option '%c'", option);
+ switch (option) {
+ case 'a':
+ action = optarg;
+ break;
+ case 's':
+ subsystem = optarg;
+ break;
+ case 'f':
+ force = 1;
+ break;
+ case 'h':
+ printf("Usage: udevadm test OPTIONS <devpath>\n"
+ " --action=<string> set action string\n"
+ " --subsystem=<string> set subsystem string\n"
+ " --force don't skip node/link creation\n"
+ " --help print this help text\n\n");
+ exit(0);
+ default:
+ exit(1);
+ }
+ }
+ devpath = argv[optind];
- devpath = getenv("DEVPATH");
- return devpath;
-}
+ if (devpath == NULL) {
+ fprintf(stderr, "devpath parameter missing\n");
+ rc = 1;
+ goto exit;
+ }
-static inline char *get_seqnum(void)
-{
- char *seqnum;
+ printf("This program is for debugging only, it does not run any program,\n"
+ "specified by a RUN key. It may show incorrect results, because\n"
+ "some values may be different, or not available at a simulation run.\n"
+ "\n");
- seqnum = getenv("SEQNUM");
- return seqnum;
-}
+ sysfs_init();
+ udev_rules_init(&rules, 0);
-static char *subsystem_blacklist[] = {
- "net",
- "scsi_host",
- "scsi_device",
- "usb_host",
- "pci_bus",
- "",
-};
+ /* remove /sys if given */
+ if (strncmp(devpath, sysfs_path, strlen(sysfs_path)) == 0)
+ devpath = &devpath[strlen(sysfs_path)];
-static int udev_hotplug(int argc, char **argv)
-{
- char *devpath;
- char *subsystem;
- int retval = -EINVAL;
- int i;
- struct sigaction act;
-
- devpath = argv[1];
- if (!devpath) {
- dbg("no devpath?");
+ dev = sysfs_device_get(devpath);
+ if (dev == NULL) {
+ fprintf(stderr, "unable to open device '%s'\n", devpath);
+ rc = 2;
goto exit;
}
- dbg("looking at '%s'", devpath);
- /* we only care about class devices and block stuff */
- if (!strstr(devpath, "class") &&
- !strstr(devpath, "block")) {
- dbg("not a block or class device");
+ udev = udev_device_init(NULL);
+ if (udev == NULL) {
+ fprintf(stderr, "error initializing device\n");
+ rc = 3;
goto exit;
}
- /* skip blacklisted subsystems */
- subsystem = argv[1];
- i = 0;
- while (subsystem_blacklist[i][0] != '\0') {
- if (strcmp(subsystem, subsystem_blacklist[i]) == 0) {
- dbg("don't care about '%s' devices", subsystem);
- goto exit;
- }
- i++;
- }
+ if (subsystem != NULL)
+ strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
- /* initialize our configuration */
- udev_init_config();
+ /* override built-in sysfs device */
+ udev->dev = dev;
+ strlcpy(udev->action, action, sizeof(udev->action));
+ udev->devt = udev_device_get_devt(udev);
- /* set up a default signal handler for now */
- act.sa_handler = sig_handler;
- sigemptyset (&act.sa_mask);
- act.sa_flags = SA_RESTART;
- sigaction(SIGINT, &act, NULL);
- sigaction(SIGTERM, &act, NULL);
+ /* simulate node creation with test flag */
+ if (!force)
+ udev->test_run = 1;
- /* initialize the naming deamon */
- namedev_init();
+ setenv("DEVPATH", udev->dev->devpath, 1);
+ setenv("SUBSYSTEM", udev->dev->subsystem, 1);
+ setenv("ACTION", udev->action, 1);
+ import_uevent_var(udev->dev->devpath);
- retval = udev_add_device(devpath, subsystem, 1);
+ info("looking at device '%s' from subsystem '%s'", udev->dev->devpath, udev->dev->subsystem);
+ retval = udev_device_event(&rules, udev);
+ if (retval == 0 && !udev->ignore_device && udev_run) {
+ struct name_entry *name_loop;
-exit:
- if (retval > 0)
- retval = 0;
+ list_for_each_entry(name_loop, &udev->run_list, node) {
+ char program[PATH_SIZE];
- return -retval;
-}
-
-int main(int argc, char **argv, char **envp)
-{
- main_argv = argv;
- main_envp = envp;
-
- dbg("version %s", UDEV_VERSION);
+ strlcpy(program, name_loop->name, sizeof(program));
+ udev_rules_apply_format(udev, program, sizeof(program));
+ info("run: '%s'", program);
+ }
+ }
+ udev_device_cleanup(udev);
- return udev_hotplug(argc, argv);
+exit:
+ udev_rules_cleanup(&rules);
+ sysfs_cleanup();
+ return rc;
}
-
-
~ianmdlvl / elogind.git / blobdiff