#include <fcntl.h>
#include <errno.h>
#include <ctype.h>
-#include <dirent.h>
-#include <syslog.h>
#include <pwd.h>
#include <grp.h>
-#include <sys/types.h>
-#include <sys/utsname.h>
#include "udev.h"
-struct name_entry *name_list_add(struct udev *udev, struct list_head *name_list, const char *name, int sort)
+int create_path(struct udev *udev, const char *path)
{
- struct name_entry *name_loop;
- struct name_entry *name_new;
-
- /* avoid duplicate entries */
- list_for_each_entry(name_loop, name_list, node) {
- if (strcmp(name_loop->name, name) == 0) {
- dbg(udev, "'%s' is already in the list\n", name);
- return name_loop;
- }
- }
-
- if (sort)
- list_for_each_entry(name_loop, name_list, node) {
- if (strcmp(name_loop->name, name) > 0)
- break;
- }
+ char p[UTIL_PATH_SIZE];
+ char *pos;
+ struct stat stats;
+ int ret;
- name_new = malloc(sizeof(struct name_entry));
- if (name_new == NULL)
- return NULL;
- memset(name_new, 0x00, sizeof(struct name_entry));
- util_strlcpy(name_new->name, name, sizeof(name_new->name));
- dbg(udev, "adding '%s'\n", name_new->name);
- list_add_tail(&name_new->node, &name_loop->node);
+ util_strlcpy(p, path, sizeof(p));
+ pos = strrchr(p, '/');
+ if (pos == p || pos == NULL)
+ return 0;
- return name_new;
-}
+ while (pos[-1] == '/')
+ pos--;
+ pos[0] = '\0';
-struct name_entry *name_list_key_add(struct udev *udev, struct list_head *name_list, const char *key, const char *value)
-{
- struct name_entry *name_loop;
- struct name_entry *name_new;
- size_t keylen = strlen(key);
-
- list_for_each_entry(name_loop, name_list, node) {
- if (strncmp(name_loop->name, key, keylen) != 0)
- continue;
- if (name_loop->name[keylen] != '=')
- continue;
- dbg(udev, "key already present '%s', replace it\n", name_loop->name);
- snprintf(name_loop->name, sizeof(name_loop->name), "%s=%s", key, value);
- name_loop->name[sizeof(name_loop->name)-1] = '\0';
- return name_loop;
- }
+ dbg(udev, "stat '%s'\n", p);
+ if (stat(p, &stats) == 0 && (stats.st_mode & S_IFMT) == S_IFDIR)
+ return 0;
- name_new = malloc(sizeof(struct name_entry));
- if (name_new == NULL)
- return NULL;
- memset(name_new, 0x00, sizeof(struct name_entry));
- snprintf(name_new->name, sizeof(name_new->name), "%s=%s", key, value);
- name_new->name[sizeof(name_new->name)-1] = '\0';
- dbg(udev, "adding '%s'\n", name_new->name);
- list_add_tail(&name_new->node, &name_loop->node);
+ if (create_path(udev, p) != 0)
+ return -1;
- return name_new;
+ dbg(udev, "mkdir '%s'\n", p);
+ udev_selinux_setfscreatecon(udev, p, S_IFDIR|0755);
+ ret = mkdir(p, 0755);
+ udev_selinux_resetfscreatecon(udev);
+ if (ret == 0)
+ return 0;
+
+ if (errno == EEXIST)
+ if (stat(p, &stats) == 0 && (stats.st_mode & S_IFMT) == S_IFDIR)
+ return 0;
+ return -1;
}
-int name_list_key_remove(struct udev *udev, struct list_head *name_list, const char *key)
+int delete_path(struct udev *udev, const char *path)
{
- struct name_entry *name_loop;
- struct name_entry *name_tmp;
- size_t keylen = strlen(key);
- int retval = 0;
-
- list_for_each_entry_safe(name_loop, name_tmp, name_list, node) {
- if (strncmp(name_loop->name, key, keylen) != 0)
- continue;
- if (name_loop->name[keylen] != '=')
- continue;
- list_del(&name_loop->node);
- free(name_loop);
- retval = 1;
- break;
- }
- return retval;
-}
+ char p[UTIL_PATH_SIZE];
+ char *pos;
+ int retval;
-void name_list_cleanup(struct udev *udev, struct list_head *name_list)
-{
- struct name_entry *name_loop;
- struct name_entry *name_tmp;
+ strcpy (p, path);
+ pos = strrchr(p, '/');
+ if (pos == p || pos == NULL)
+ return 0;
+
+ while (1) {
+ *pos = '\0';
+ pos = strrchr(p, '/');
+
+ /* don't remove the last one */
+ if ((pos == p) || (pos == NULL))
+ break;
- list_for_each_entry_safe(name_loop, name_tmp, name_list, node) {
- list_del(&name_loop->node);
- free(name_loop);
+ /* remove if empty */
+ retval = rmdir(p);
+ if (errno == ENOENT)
+ retval = 0;
+ if (retval) {
+ if (errno == ENOTEMPTY)
+ return 0;
+ err(udev, "rmdir(%s) failed: %m\n", p);
+ break;
+ }
+ dbg(udev, "removed '%s'\n", p);
}
+ return 0;
}
-/* calls function for every file found in specified directory */
-int add_matching_files(struct udev *udev, struct list_head *name_list, const char *dirname, const char *suffix)
+/* Reset permissions on the device node, before unlinking it to make sure,
+ * that permisions of possible hard links will be removed too.
+ */
+int unlink_secure(struct udev *udev, const char *filename)
{
- struct dirent *ent;
- DIR *dir;
- char filename[UTIL_PATH_SIZE];
-
- dbg(udev, "open directory '%s'\n", dirname);
- dir = opendir(dirname);
- if (dir == NULL) {
- err(udev, "unable to open '%s': %m\n", dirname);
- return -1;
- }
+ int retval;
- while (1) {
- ent = readdir(dir);
- if (ent == NULL || ent->d_name[0] == '\0')
- break;
-
- if ((ent->d_name[0] == '.') || (ent->d_name[0] == '#'))
- continue;
+ retval = chown(filename, 0, 0);
+ if (retval)
+ err(udev, "chown(%s, 0, 0) failed: %m\n", filename);
- /* look for file matching with specified suffix */
- if (suffix != NULL) {
- const char *ext;
+ retval = chmod(filename, 0000);
+ if (retval)
+ err(udev, "chmod(%s, 0000) failed: %m\n", filename);
- ext = strrchr(ent->d_name, '.');
- if (ext == NULL)
- continue;
- if (strcmp(ext, suffix) != 0)
- continue;
- }
- dbg(udev, "put file '%s/%s' into list\n", dirname, ent->d_name);
+ retval = unlink(filename);
+ if (errno == ENOENT)
+ retval = 0;
- snprintf(filename, sizeof(filename), "%s/%s", dirname, ent->d_name);
- filename[sizeof(filename)-1] = '\0';
- name_list_add(udev, name_list, filename, 1);
- }
+ if (retval)
+ err(udev, "unlink(%s) failed: %m\n", filename);
- closedir(dir);
- return 0;
+ return retval;
}
uid_t lookup_user(struct udev *udev, const char *user)
return gid;
}
-
~ianmdlvl / elogind.git / blobdiff