*
* Userspace devfs
*
- * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
- *
+ * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
*
* 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
*
*/
+#include <stdio.h>
+#include <stddef.h>
#include <stdlib.h>
#include <string.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
#include <ctype.h>
+#include <errno.h>
#include <signal.h>
-#include <stdarg.h>
+#include "libsysfs/sysfs/libsysfs.h"
#include "udev.h"
+#include "udev_lib.h"
#include "udev_version.h"
-#include "udev_dbus.h"
#include "logging.h"
#include "namedev.h"
#include "udevdb.h"
-#include "libsysfs/libsysfs.h"
/* global variables */
char **main_argv;
char **main_envp;
+#ifdef LOG
+unsigned char logname[LOGNAME_SIZE];
+void log_message(int level, const char *format, ...)
+{
+ va_list args;
+
+ if (!udev_log)
+ return;
+
+ va_start(args, format);
+ vsyslog(level, format, args);
+ va_end(args);
+}
+#endif
+
static void sig_handler(int signum)
{
- dbg("caught signal %d", signum);
switch (signum) {
case SIGINT:
case SIGTERM:
- case SIGKILL:
- sysbus_disconnect();
udevdb_exit();
exit(20 + signum);
- break;
default:
dbg("unhandled signal");
}
}
-static inline char *get_action(void)
-{
- char *action;
-
- action = getenv("ACTION");
- return action;
-}
-
-static inline char *get_devpath(void)
-{
- char *devpath;
-
- devpath = getenv("DEVPATH");
- return devpath;
-}
-
-static inline char *get_seqnum(void)
-{
- char *seqnum;
-
- seqnum = getenv("SEQNUM");
- return seqnum;
-}
-
-static void print_record(char *path, struct udevice *dev)
-{
- printf("P: %s\n", path);
- printf("N: %s\n", dev->name);
- printf("S: %s\n", dev->symlink);
- printf("O: %s\n", dev->owner);
- printf("G: %s\n", dev->group);
- printf("\n");
-}
-
-enum query_type {
- NONE,
- NAME,
- SYMLINK,
- OWNER,
- GROUP
-};
-
-static inline int udev_user(int argc, char **argv)
-{
- static const char short_options[] = "dp:q:rVh";
- int option;
- int retval = -EINVAL;
- struct udevice dev;
- int root = 0;
- enum query_type query = NONE;
- char result[NAME_SIZE] = "";
- char path[NAME_SIZE] = "";
-
- /* get command line options */
- while (1) {
- option = getopt(argc, argv, short_options);
- if (option == -1)
- break;
-
- dbg("option '%c'", option);
- switch (option) {
- case 'p':
- dbg("udev path: %s\n", optarg);
- strfieldcpy(path, optarg);
- break;
-
- case 'q':
- dbg("udev query: %s\n", optarg);
-
- if (strcmp(optarg, "name") == 0) {
- query = NAME;
- break;
- }
-
- if (strcmp(optarg, "symlink") == 0) {
- query = SYMLINK;
- break;
- }
-
- if (strcmp(optarg, "owner") == 0) {
- query = OWNER;
- break;
- }
-
- if (strcmp(optarg, "group") == 0) {
- query = GROUP;
- break;
- }
-
- printf("unknown query type\n");
- return -EINVAL;
-
- case 'r':
- root = 1;
- break;
-
- case 'd':
- retval = udevdb_open_ro();
- if (retval != 0) {
- printf("unable to open udev database\n");
- return -EACCES;
- }
- retval = udevdb_dump(print_record);
- udevdb_exit();
- return retval;
-
- case 'V':
- printf("udev, version %s\n", UDEV_VERSION);
- return 0;
-
- case 'h':
- retval = 0;
- case '?':
- default:
- goto help;
- }
- }
-
- /* process options */
- if (query != NONE) {
- if (path[0] == '\0') {
- printf("query needs device path specified\n");
- return -EINVAL;
- }
-
- retval = udevdb_open_ro();
- if (retval != 0) {
- printf("unable to open udev database\n");
- return -EACCES;
- }
- retval = udevdb_get_dev(path, &dev);
- if (retval == 0) {
- switch(query) {
- case NAME:
- if (root)
- strfieldcpy(result, udev_root);
- strncat(result, dev.name, sizeof(result));
- break;
-
- case SYMLINK:
- strfieldcpy(result, dev.symlink);
- break;
-
- case GROUP:
- strfieldcpy(result, dev.group);
- break;
-
- case OWNER:
- strfieldcpy(result, dev.owner);
- break;
-
- default:
- break;
- }
- printf("%s\n", result);
- } else {
- printf("device not found in udev database\n");
- }
- udevdb_exit();
- return retval;
- }
-
- if (root) {
- printf("%s\n", udev_root);
- return 0;
- }
-
-help:
- printf("Usage: [-pqrdVh]\n"
- " -q TYPE query database for the specified value:\n"
- " 'name' name of device node\n"
- " 'symlink' pointing to node\n"
- " 'owner' of node\n"
- " 'group' of node\n"
- " -p PATH sysfs device path used for query\n"
- " -r print udev root\n"
- " -d dump whole database\n"
- " -V print udev version\n"
- " -h print this help text\n"
- "\n");
- return retval;
-}
-
static char *subsystem_blacklist[] = {
"net",
"scsi_host",
"scsi_device",
"usb_host",
"pci_bus",
- "",
+ "pcmcia_socket",
+ ""
};
-static inline int udev_hotplug(int argc, char **argv)
+static int udev_hotplug(void)
{
char *action;
char *devpath;
char *subsystem;
int retval = -EINVAL;
int i;
+ struct sigaction act;
- subsystem = argv[1];
+ action = get_action();
+ if (!action) {
+ dbg("no action?");
+ goto exit;
+ }
devpath = get_devpath();
if (!devpath) {
- dbg ("no devpath?");
+ dbg("no devpath?");
goto exit;
}
dbg("looking at '%s'", devpath);
}
/* skip blacklisted subsystems */
+ subsystem = get_subsystem(main_argv[1]);
+ if (!subsystem) {
+ dbg("no subsystem?");
+ goto exit;
+ }
i = 0;
while (subsystem_blacklist[i][0] != '\0') {
if (strcmp(subsystem, subsystem_blacklist[i]) == 0) {
i++;
}
- action = get_action();
- if (!action) {
- dbg ("no action?");
- goto exit;
- }
-
- /* connect to the system message bus */
- sysbus_connect();
-
/* initialize udev database */
retval = udevdb_init(UDEVDB_DEFAULT);
if (retval != 0) {
dbg("unable to initialize database");
- goto exit_sysbus;
+ goto exit;
}
/* set up a default signal handler for now */
- signal(SIGINT, sig_handler);
- signal(SIGTERM, sig_handler);
- signal(SIGKILL, sig_handler);
-
- /* initialize the naming deamon */
- namedev_init();
-
- if (strcmp(action, "add") == 0)
- retval = udev_add_device(devpath, subsystem);
-
- else if (strcmp(action, "remove") == 0)
- retval = udev_remove_device(devpath, subsystem);
-
- else {
- dbg("unknown action '%s'", action);
- retval = -EINVAL;
+ act.sa_handler = sig_handler;
+ sigemptyset (&act.sa_mask);
+ act.sa_flags = SA_RESTART;
+ sigaction(SIGINT, &act, NULL);
+ sigaction(SIGTERM, &act, NULL);
+
+ if (strcmp(action, "add") == 0) {
+ namedev_init();
+ retval = udev_add_device(devpath, subsystem, 0);
+ } else {
+ if (strcmp(action, "remove") == 0) {
+ retval = udev_remove_device(devpath, subsystem);
+ } else {
+ dbg("unknown action '%s'", action);
+ retval = -EINVAL;
+ }
}
- udevdb_exit();
-exit_sysbus:
- /* disconnect from the system message bus */
- sysbus_disconnect();
+ udevdb_exit();
exit:
if (retval > 0)
return -retval;
}
-int main(int argc, char **argv, char **envp)
+int main(int argc, char *argv[], char *envp[])
{
- int retval;
main_argv = argv;
main_envp = envp;
- dbg("version %s", UDEV_VERSION);
+ init_logging("udev");
/* initialize our configuration */
udev_init_config();
- if (argc == 2 && argv[1][0] != '-') {
- dbg("called by hotplug");
- retval = udev_hotplug(argc, argv);
- } else {
- dbg("called by user");
- retval = udev_user(argc, argv);
- }
+ dbg("version %s", UDEV_VERSION);
- return retval;
+ return udev_hotplug();
}
-
-
~ianmdlvl / elogind.git / blobdiff