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Diffstat (limited to 'udev.c')
-rw-r--r--udev.c82
1 files changed, 66 insertions, 16 deletions
diff --git a/udev.c b/udev.c
index a398477118..8d650c2561 100644
--- a/udev.c
+++ b/udev.c
@@ -34,8 +34,19 @@
#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;
+char *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;
@@ -43,22 +54,60 @@ static char *get_action(void)
return action;
}
+static inline char *get_devpath(void)
+{
+ char *devpath;
+
+ devpath = getenv("DEVPATH");
+ return devpath;
+}
-static char *get_device(void)
+static inline char *get_seqnum(void)
{
- char *device;
+ char *seqnum;
- device = getenv("DEVPATH");
- return device;
+ seqnum = getenv("SEQNUM");
+ return seqnum;
}
-char **main_argv;
-char **main_envp;
+static void get_dirs(void)
+{
+ char *udev_test;
+ char *temp;
+ int retval;
+
+ udev_test = getenv("UDEV_TEST");
+ if (udev_test == NULL) {
+ /* normal operation, use the compiled in defaults */
+ udev_config_dir = UDEV_CONFIG_DIR;
+ udev_root = UDEV_ROOT;
+ retval = sysfs_get_mnt_path(sysfs_path, SYSFS_PATH_MAX);
+ dbg("sysfs_path = %s", sysfs_path);
+ if (retval)
+ dbg("sysfs_get_mnt_path failed");
+
+ } else {
+ /* hm testing is happening, use the specified values */
+ temp = getenv("UDEV_SYSFS_PATH");
+ strncpy(sysfs_path, temp, sizeof(sysfs_path));
+ udev_config_dir = getenv("UDEV_CONFIG_DIR");
+ udev_root = getenv("UDEV_ROOT");
+ }
+
+ strncpy(udev_db_filename, udev_config_dir, sizeof(udev_db_filename));
+ strncat(udev_db_filename, UDEV_DB, sizeof(udev_db_filename));
+
+ strncpy(udev_config_filename, udev_config_dir, sizeof(udev_config_filename));
+ strncat(udev_config_filename, NAMEDEV_CONFIG_FILE, sizeof(udev_config_filename));
+
+ strncpy(udev_config_permission_filename, udev_config_dir, sizeof(udev_config_permission_filename));
+ strncat(udev_config_permission_filename, NAMEDEV_CONFIG_PERMISSION_FILE, sizeof(udev_config_permission_filename));
+}
int main(int argc, char **argv, char **envp)
{
char *action;
- char *device;
+ char *devpath;
char *subsystem;
int retval = -EINVAL;
@@ -74,16 +123,16 @@ int main(int argc, char **argv, char **envp)
subsystem = argv[1];
- device = get_device();
- if (!device) {
- dbg ("no device?");
+ devpath = get_devpath();
+ if (!devpath) {
+ dbg ("no devpath?");
goto exit;
}
- dbg("looking at %s", device);
+ dbg("looking at %s", devpath);
/* we only care about class devices and block stuff */
- if (!strstr(device, "class") &&
- !strstr(device, "block")) {
+ if (!strstr(devpath, "class") &&
+ !strstr(devpath, "block")) {
dbg("not block or class");
goto exit;
}
@@ -101,6 +150,7 @@ int main(int argc, char **argv, char **envp)
}
/* initialize udev database */
+ get_dirs();
retval = udevdb_init(UDEVDB_DEFAULT);
if (retval != 0) {
dbg("Unable to initialize database.");
@@ -111,10 +161,10 @@ int main(int argc, char **argv, char **envp)
namedev_init();
if (strcmp(action, "add") == 0)
- retval = udev_add_device(device, argv[1]);
+ retval = udev_add_device(devpath, subsystem);
else if (strcmp(action, "remove") == 0)
- retval = udev_remove_device(device, argv[1]);
+ retval = udev_remove_device(devpath, subsystem);
else {
dbg("Unknown action: %s", action);