#include <stdlib.h>
#include <string.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
#include "udev.h"
#include "udev_version.h"
+#include "namedev.h"
+#include "udevdb.h"
+#include "libsysfs/libsysfs.h"
+
+/* global variables */
+char **main_argv;
+char **main_envp;
+char sysfs_path[SYSFS_PATH_MAX];
+char *udev_config_dir = UDEV_CONFIG_DIR;
+char *udev_root = UDEV_ROOT;
+char udev_db_filename[PATH_MAX+NAME_MAX];
+char udev_config_permission_filename[PATH_MAX+NAME_MAX];
+char udev_config_filename[PATH_MAX+NAME_MAX];
-static char *get_action(void)
+
+static inline char *get_action(void)
{
char *action;
return action;
}
+static inline char *get_devpath(void)
+{
+ char *devpath;
+
+ devpath = getenv("DEVPATH");
+ return devpath;
+}
+
+static inline char *get_seqnum(void)
+{
+ char *seqnum;
-/* yeah this should be dynamically allocated... */
-static char device[255];
+ seqnum = getenv("SEQNUM");
+ return seqnum;
+}
-static char *get_device(void)
+static void get_dirs(void)
{
char *temp;
+ char *udev_db = UDEV_DB;
+ char *udev_config = UDEV_CONFIG_FILE;
+ char *udev_permission = UDEV_CONFIG_PERMISSION_FILE;
+ int retval;
+
+ retval = sysfs_get_mnt_path(sysfs_path, SYSFS_PATH_MAX);
+ if (retval)
+ dbg("sysfs_get_mnt_path failed");
+
+ /* see if we should try to override any of the default values */
+ temp = getenv("UDEV_TEST");
+ if (temp != NULL) {
+ /* hm testing is happening, use the specified values, if they are present */
+ temp = getenv("UDEV_SYSFS_PATH");
+ if (temp)
+ strncpy(sysfs_path, temp, sizeof(sysfs_path));
+ temp = getenv("UDEV_CONFIG_DIR");
+ if (temp)
+ udev_config_dir = temp;
+ temp = getenv("UDEV_ROOT");
+ if (temp)
+ udev_root = temp;
+ temp = getenv("UDEV_DB");
+ if (temp)
+ udev_db = temp;
+ temp = getenv("UDEV_CONFIG_FILE");
+ if (temp)
+ udev_config = temp;
+ temp = getenv("UDEV_PERMISSION_FILE");
+ if (temp)
+ udev_permission = temp;
+ }
+ dbg("sysfs_path = %s", sysfs_path);
- temp = getenv("DEVPATH");
- if (temp == NULL)
- return NULL;
- strcpy(device, SYSFS_ROOT);
- strcat(device, temp);
+ strncpy(udev_db_filename, udev_config_dir, sizeof(udev_db_filename));
+ strncat(udev_db_filename, udev_db, sizeof(udev_db_filename));
- return device;
+ strncpy(udev_config_filename, udev_config_dir, sizeof(udev_config_filename));
+ strncat(udev_config_filename, udev_config, sizeof(udev_config_filename));
+
+ strncpy(udev_config_permission_filename, udev_config_dir, sizeof(udev_config_permission_filename));
+ strncat(udev_config_permission_filename, udev_permission, sizeof(udev_config_permission_filename));
}
-
-int main(int argc, char *argv[])
+int main(int argc, char **argv, char **envp)
{
- char *subsystem;
char *action;
- char *dev;
+ char *devpath;
+ char *subsystem;
+ int retval = -EINVAL;
+ main_argv = argv;
+ main_envp = envp;
+
+ dbg("version %s", UDEV_VERSION);
+
if (argc != 2) {
dbg ("unknown number of arguments");
- return 1;
+ goto exit;
}
subsystem = argv[1];
+ devpath = get_devpath();
+ if (!devpath) {
+ dbg ("no devpath?");
+ 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 block or class");
+ goto exit;
+ }
+
+ /* but we don't care about net class devices */
+ if (strcmp(subsystem, "net") == 0) {
+ dbg("don't care about net devices");
+ goto exit;
+ }
+
action = get_action();
if (!action) {
dbg ("no action?");
- return 1;
+ goto exit;
+ }
+
+ /* initialize udev database */
+ get_dirs();
+ retval = udevdb_init(UDEVDB_DEFAULT);
+ if (retval != 0) {
+ dbg("Unable to initialize database.");
+ goto exit;
}
- dev = get_device();
- if (!dev) {
- dbg ("no device?");
- return 1;
+ /* 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;
}
+ udevdb_exit();
- return 0;
+exit:
+ return retval;
}