* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <stddef.h>
-#include <stdbool.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-#include <grp.h>
#include <dirent.h>
-#include <sys/time.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
#include <sys/stat.h>
-#include <sys/types.h>
+#include <unistd.h>
-#include "udev.h"
+#include "format-util.h"
+#include "fs-util.h"
+#include "selinux-util.h"
#include "smack-util.h"
+#include "stdio-util.h"
+#include "string-util.h"
+#include "udev.h"
-static int node_symlink(struct udev_device *dev, const char *node, const char *slink)
-{
+static int node_symlink(struct udev_device *dev, const char *node, const char *slink) {
struct stat stats;
char target[UTIL_PATH_SIZE];
char *s;
err = mkdir_parents_label(slink, 0755);
if (err != 0 && err != -ENOENT)
break;
- label_context_set(slink, S_IFLNK);
+ mac_selinux_create_file_prepare(slink, S_IFLNK);
err = symlink(target, slink);
if (err != 0)
err = -errno;
- label_context_clear();
+ mac_selinux_create_file_clear();
} while (err == -ENOENT);
if (err == 0)
goto exit;
err = mkdir_parents_label(slink_tmp, 0755);
if (err != 0 && err != -ENOENT)
break;
- label_context_set(slink_tmp, S_IFLNK);
+ mac_selinux_create_file_prepare(slink_tmp, S_IFLNK);
err = symlink(target, slink_tmp);
if (err != 0)
err = -errno;
- label_context_clear();
+ mac_selinux_create_file_clear();
} while (err == -ENOENT);
if (err != 0) {
- log_error("symlink '%s' '%s' failed: %m", target, slink_tmp);
+ log_error_errno(errno, "symlink '%s' '%s' failed: %m", target, slink_tmp);
goto exit;
}
err = rename(slink_tmp, slink);
if (err != 0) {
- log_error("rename '%s' '%s' failed: %m", slink_tmp, slink);
+ log_error_errno(errno, "rename '%s' '%s' failed: %m", slink_tmp, slink);
unlink(slink_tmp);
}
exit:
}
/* find device node of device with highest priority */
-static const char *link_find_prioritized(struct udev_device *dev, bool add, const char *stackdir, char *buf, size_t bufsize)
-{
+static const char *link_find_prioritized(struct udev_device *dev, bool add, const char *stackdir, char *buf, size_t bufsize) {
struct udev *udev = udev_device_get_udev(dev);
DIR *dir;
int priority = 0;
}
/* manage "stack of names" with possibly specified device priorities */
-static void link_update(struct udev_device *dev, const char *slink, bool add)
-{
- struct udev *udev = udev_device_get_udev(dev);
+static void link_update(struct udev_device *dev, const char *slink, bool add) {
char name_enc[UTIL_PATH_SIZE];
char filename[UTIL_PATH_SIZE * 2];
char dirname[UTIL_PATH_SIZE];
if (target == NULL) {
log_debug("no reference left, remove '%s'", slink);
if (unlink(slink) == 0)
- util_delete_path(udev, slink);
+ rmdir_parents(slink, "/");
} else {
log_debug("creating link '%s' to '%s'", slink, target);
node_symlink(dev, target, slink);
}
}
-void udev_node_update_old_links(struct udev_device *dev, struct udev_device *dev_old)
-{
+void udev_node_update_old_links(struct udev_device *dev, struct udev_device *dev_old) {
struct udev_list_entry *list_entry;
/* update possible left-over symlinks */
mode |= S_IFCHR;
if (lstat(devnode, &stats) != 0) {
- err = -errno;
- log_debug("can not stat() node '%s' (%m)", devnode);
+ err = log_debug_errno(errno, "can not stat() node '%s' (%m)", devnode);
goto out;
}
if ((stats.st_mode & 0777) != (mode & 0777) || stats.st_uid != uid || stats.st_gid != gid) {
log_debug("set permissions %s, %#o, uid=%u, gid=%u", devnode, mode, uid, gid);
- chmod(devnode, mode);
- chown(devnode, uid, gid);
+ err = chmod(devnode, mode);
+ if (err < 0)
+ log_warning_errno(errno, "setting mode of %s to %#o failed: %m", devnode, mode);
+ err = chown(devnode, uid, gid);
+ if (err < 0)
+ log_warning_errno(errno, "setting owner of %s to uid=%u, gid=%u failed: %m", devnode, uid, gid);
} else {
log_debug("preserve permissions %s, %#o, uid=%u, gid=%u", devnode, mode, uid, gid);
}
/* apply SECLABEL{$module}=$label */
udev_list_entry_foreach(entry, udev_list_get_entry(seclabel_list)) {
const char *name, *label;
+ int r;
name = udev_list_entry_get_name(entry);
label = udev_list_entry_get_value(entry);
if (streq(name, "selinux")) {
selinux = true;
- if (label_apply(devnode, label) < 0)
- log_error("SECLABEL: failed to set SELinux label '%s'", label);
+
+ r = mac_selinux_apply(devnode, label);
+ if (r < 0)
+ log_error_errno(r, "SECLABEL: failed to set SELinux label '%s': %m", label);
else
log_debug("SECLABEL: set SELinux label '%s'", label);
} else if (streq(name, "smack")) {
smack = true;
- if (smack_label_path(devnode, label) < 0)
- log_error("SECLABEL: failed to set SMACK label '%s'", label);
+
+ r = mac_smack_apply(devnode, SMACK_ATTR_ACCESS, label);
+ if (r < 0)
+ log_error_errno(r, "SECLABEL: failed to set SMACK label '%s': %m", label);
else
log_debug("SECLABEL: set SMACK label '%s'", label);
/* set the defaults */
if (!selinux)
- label_fix(devnode, true, false);
+ mac_selinux_fix(devnode, true, false);
if (!smack)
- smack_label_path(devnode, NULL);
+ mac_smack_apply(devnode, SMACK_ATTR_ACCESS, NULL);
}
/* always update timestamp when we re-use the node, like on media change events */
void udev_node_add(struct udev_device *dev, bool apply,
mode_t mode, uid_t uid, gid_t gid,
struct udev_list *seclabel_list) {
- char filename[UTIL_PATH_SIZE];
+ char filename[sizeof("/dev/block/:") + 2*DECIMAL_STR_MAX(unsigned)];
struct udev_list_entry *list_entry;
- log_debug("handling device node '%s', devnum=%s, mode=%#o, uid=%d, gid=%d",
+ log_debug("handling device node '%s', devnum=%s, mode=%#o, uid="UID_FMT", gid="GID_FMT,
udev_device_get_devnode(dev), udev_device_get_id_filename(dev), mode, uid, gid);
if (node_permissions_apply(dev, apply, mode, uid, gid, seclabel_list) < 0)
return;
/* always add /dev/{block,char}/$major:$minor */
- snprintf(filename, sizeof(filename), "/dev/%s/%u:%u",
+ xsprintf(filename, "/dev/%s/%u:%u",
streq(udev_device_get_subsystem(dev), "block") ? "block" : "char",
- major(udev_device_get_devnum(dev)), minor(udev_device_get_devnum(dev)));
+ major(udev_device_get_devnum(dev)),
+ minor(udev_device_get_devnum(dev)));
node_symlink(dev, udev_device_get_devnode(dev), filename);
/* create/update symlinks, add symlinks to name index */
link_update(dev, udev_list_entry_get_name(list_entry), true);
}
-void udev_node_remove(struct udev_device *dev)
-{
+void udev_node_remove(struct udev_device *dev) {
struct udev_list_entry *list_entry;
- char filename[UTIL_PATH_SIZE];
+ char filename[sizeof("/dev/block/:") + 2*DECIMAL_STR_MAX(unsigned)];
/* remove/update symlinks, remove symlinks from name index */
udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(dev))
link_update(dev, udev_list_entry_get_name(list_entry), false);
/* remove /dev/{block,char}/$major:$minor */
- snprintf(filename, sizeof(filename), "/dev/%s/%u:%u",
+ xsprintf(filename, "/dev/%s/%u:%u",
streq(udev_device_get_subsystem(dev), "block") ? "block" : "char",
- major(udev_device_get_devnum(dev)), minor(udev_device_get_devnum(dev)));
+ major(udev_device_get_devnum(dev)),
+ minor(udev_device_get_devnum(dev)));
unlink(filename);
}
projects / thirdparty / systemd.git / blobdiff