This file is part of systemd.
Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
+ Copyright 2015 Tom Gundersen <teg@jklm.no>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdio.h>
-#include <string.h>
-#include <stddef.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
#include "libudev.h"
#include "libudev-private.h"
+#include "libudev-device-internal.h"
+
+#include "device-private.h"
+
+int udev_device_tag_index(struct udev_device *udev_device, struct udev_device *udev_device_old, bool add) {
+ sd_device *device_old = NULL;
+ int r;
+
+ assert(udev_device);
+
+ if (udev_device_old)
+ device_old = udev_device_old->device;
+
+ r = device_tag_index(udev_device->device, device_old, add);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int udev_device_update_db(struct udev_device *udev_device) {
+ int r;
+
+ assert(udev_device);
+
+ r = device_update_db(udev_device->device);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int udev_device_delete_db(struct udev_device *udev_device) {
+ int r;
+
+ assert(udev_device);
+
+ r = device_delete_db(udev_device->device);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int udev_device_get_ifindex(struct udev_device *udev_device) {
+ int r, ifindex;
+
+ assert(udev_device);
+
+ r = sd_device_get_ifindex(udev_device->device, &ifindex);
+ if (r < 0)
+ return r;
+
+ return ifindex;
+}
+
+const char *udev_device_get_devpath_old(struct udev_device *udev_device) {
+ const char *devpath_old = NULL;
+ int r;
-static void udev_device_tag(struct udev_device *dev, const char *tag, bool add)
-{
- const char *id;
- char filename[UTIL_PATH_SIZE];
-
- id = udev_device_get_id_filename(dev);
- if (id == NULL)
- return;
- strscpyl(filename, sizeof(filename), "/run/udev/tags/", tag, "/", id, NULL);
-
- if (add) {
- int fd;
-
- mkdir_parents(filename, 0755);
- fd = open(filename, O_WRONLY|O_CREAT|O_CLOEXEC|O_TRUNC|O_NOFOLLOW, 0444);
- if (fd >= 0)
- close(fd);
- } else {
- unlink(filename);
+ assert(udev_device);
+
+ r = sd_device_get_property_value(udev_device->device, "DEVPATH_OLD", &devpath_old);
+ if (r < 0 && r != -ENOENT) {
+ errno = -r;
+ return NULL;
}
+
+ return devpath_old;
}
-int udev_device_tag_index(struct udev_device *dev, struct udev_device *dev_old, bool add)
-{
- struct udev_list_entry *list_entry;
- bool found;
-
- if (add && dev_old != NULL) {
- /* delete possible left-over tags */
- udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(dev_old)) {
- const char *tag_old = udev_list_entry_get_name(list_entry);
- struct udev_list_entry *list_entry_current;
-
- found = false;
- udev_list_entry_foreach(list_entry_current, udev_device_get_tags_list_entry(dev)) {
- const char *tag = udev_list_entry_get_name(list_entry_current);
-
- if (streq(tag, tag_old)) {
- found = true;
- break;
- }
- }
- if (!found)
- udev_device_tag(dev_old, tag_old, false);
- }
+mode_t udev_device_get_devnode_mode(struct udev_device *udev_device) {
+ mode_t mode;
+ int r;
+
+ assert(udev_device);
+
+ r = device_get_devnode_mode(udev_device->device, &mode);
+ if (r < 0) {
+ errno = -r;
+ return 0;
}
- udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(dev))
- udev_device_tag(dev, udev_list_entry_get_name(list_entry), add);
+ return mode;
+}
- return 0;
+uid_t udev_device_get_devnode_uid(struct udev_device *udev_device) {
+ uid_t uid;
+ int r;
+
+ assert(udev_device);
+
+ r = device_get_devnode_uid(udev_device->device, &uid);
+ if (r < 0) {
+ errno = -r;
+ return 0;
+ }
+
+ return uid;
}
-static bool device_has_info(struct udev_device *udev_device)
-{
- struct udev_list_entry *list_entry;
-
- if (udev_device_get_devlinks_list_entry(udev_device) != NULL)
- return true;
- if (udev_device_get_devlink_priority(udev_device) != 0)
- return true;
- udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device))
- if (udev_list_entry_get_num(list_entry))
- return true;
- if (udev_device_get_tags_list_entry(udev_device) != NULL)
- return true;
- if (udev_device_get_watch_handle(udev_device) >= 0)
- return true;
- return false;
-}
-
-int udev_device_update_db(struct udev_device *udev_device)
-{
- bool has_info;
- const char *id;
- char filename[UTIL_PATH_SIZE];
- char filename_tmp[UTIL_PATH_SIZE];
- FILE *f;
- int r;
-
- id = udev_device_get_id_filename(udev_device);
- if (id == NULL)
- return -1;
-
- has_info = device_has_info(udev_device);
- strscpyl(filename, sizeof(filename), "/run/udev/data/", id, NULL);
-
- /* do not store anything for otherwise empty devices */
- if (!has_info &&
- major(udev_device_get_devnum(udev_device)) == 0 &&
- udev_device_get_ifindex(udev_device) == 0) {
- unlink(filename);
+gid_t udev_device_get_devnode_gid(struct udev_device *udev_device) {
+ gid_t gid;
+ int r;
+
+ assert(udev_device);
+
+ r = device_get_devnode_gid(udev_device->device, &gid);
+ if (r < 0) {
+ errno = -r;
return 0;
}
- /* write a database file */
- strscpyl(filename_tmp, sizeof(filename_tmp), filename, ".tmp", NULL);
- mkdir_parents(filename_tmp, 0755);
- f = fopen(filename_tmp, "we");
- if (f == NULL)
- return log_debug_errno(errno, "unable to create temporary db file '%s': %m", filename_tmp);
-
- /*
- * set 'sticky' bit to indicate that we should not clean the
- * database when we transition from initramfs to the real root
- */
- if (udev_device_get_db_persist(udev_device))
- fchmod(fileno(f), 01644);
-
- if (has_info) {
- struct udev_list_entry *list_entry;
-
- if (major(udev_device_get_devnum(udev_device)) > 0) {
- udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(udev_device))
- fprintf(f, "S:%s\n", udev_list_entry_get_name(list_entry) + strlen("/dev/"));
- if (udev_device_get_devlink_priority(udev_device) != 0)
- fprintf(f, "L:%i\n", udev_device_get_devlink_priority(udev_device));
- if (udev_device_get_watch_handle(udev_device) >= 0)
- fprintf(f, "W:%i\n", udev_device_get_watch_handle(udev_device));
- }
-
- if (udev_device_get_usec_initialized(udev_device) > 0)
- fprintf(f, "I:"USEC_FMT"\n", udev_device_get_usec_initialized(udev_device));
-
- udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device)) {
- if (!udev_list_entry_get_num(list_entry))
- continue;
- fprintf(f, "E:%s=%s\n",
- udev_list_entry_get_name(list_entry),
- udev_list_entry_get_value(list_entry));
- }
-
- udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device))
- fprintf(f, "G:%s\n", udev_list_entry_get_name(list_entry));
+ return gid;
+}
+
+void udev_device_ensure_usec_initialized(struct udev_device *udev_device, struct udev_device *udev_device_old) {
+ sd_device *device_old = NULL;
+
+ assert(udev_device);
+
+ if (udev_device_old)
+ device_old = udev_device_old->device;
+
+ device_ensure_usec_initialized(udev_device->device, device_old);
+}
+
+char **udev_device_get_properties_envp(struct udev_device *udev_device) {
+ char **envp;
+ int r;
+
+ assert(udev_device);
+
+ r = device_get_properties_strv(udev_device->device, &envp);
+ if (r < 0) {
+ errno = -r;
+ return NULL;
}
- fclose(f);
- r = rename(filename_tmp, filename);
+ return envp;
+}
+
+ssize_t udev_device_get_properties_monitor_buf(struct udev_device *udev_device, const char **buf) {
+ const char *nulstr;
+ size_t len;
+ int r;
+
+ assert(udev_device);
+ assert(buf);
+
+ r = device_get_properties_nulstr(udev_device->device, (const uint8_t **)&nulstr, &len);
if (r < 0)
- return -1;
- log_debug("created %s file '%s' for '%s'", has_info ? "db" : "empty",
- filename, udev_device_get_devpath(udev_device));
+ return r;
+
+ *buf = nulstr;
+
+ return len;
+}
+
+int udev_device_get_devlink_priority(struct udev_device *udev_device) {
+ int priority, r;
+
+ assert(udev_device);
+
+ r = device_get_devlink_priority(udev_device->device, &priority);
+ if (r < 0)
+ return r;
+
+ return priority;
+}
+
+int udev_device_get_watch_handle(struct udev_device *udev_device) {
+ int handle, r;
+
+ assert(udev_device);
+
+ r = device_get_watch_handle(udev_device->device, &handle);
+ if (r < 0)
+ return r;
+
+ return handle;
+}
+
+void udev_device_set_is_initialized(struct udev_device *udev_device) {
+ assert(udev_device);
+
+ device_set_is_initialized(udev_device->device);
+}
+
+int udev_device_rename(struct udev_device *udev_device, const char *name) {
+ int r;
+
+ assert(udev_device);
+
+ r = device_rename(udev_device->device, name);
+ if (r < 0)
+ return r;
+
return 0;
}
-int udev_device_delete_db(struct udev_device *udev_device)
-{
- const char *id;
- char filename[UTIL_PATH_SIZE];
+struct udev_device *udev_device_shallow_clone(struct udev_device *old_device) {
+ struct udev_device *device;
+ int r;
+
+ assert(old_device);
+
+ device = udev_device_new(old_device->udev);
+ if (!device)
+ return NULL;
+
+ r = device_shallow_clone(old_device->device, &device->device);
+ if (r < 0) {
+ udev_device_unref(device);
+ errno = -r;
+ return NULL;
+ }
+
+ return device;
+}
+
+struct udev_device *udev_device_clone_with_db(struct udev_device *udev_device_old) {
+ struct udev_device *udev_device;
+ int r;
+
+ assert(udev_device_old);
+
+ udev_device = udev_device_new(udev_device_old->udev);
+ if (!udev_device)
+ return NULL;
+
+ r = device_clone_with_db(udev_device_old->device, &udev_device->device);
+ if (r < 0) {
+ udev_device_unref(udev_device);
+ errno = -r;
+ return NULL;
+ }
+
+ return udev_device;
+}
+
+struct udev_device *udev_device_new_from_nulstr(struct udev *udev, char *nulstr, ssize_t buflen) {
+ struct udev_device *device;
+ int r;
+
+ device = udev_device_new(udev);
+ if (!device)
+ return NULL;
+
+ r = device_new_from_nulstr(&device->device, (uint8_t*)nulstr, buflen);
+ if (r < 0) {
+ udev_device_unref(device);
+ errno = -r;
+ return NULL;
+ }
+
+ return device;
+}
+
+struct udev_device *udev_device_new_from_synthetic_event(struct udev *udev, const char *syspath, const char *action) {
+ struct udev_device *device;
+ int r;
+
+ device = udev_device_new(udev);
+ if (!device)
+ return NULL;
+
+ r = device_new_from_synthetic_event(&device->device, syspath, action);
+ if (r < 0) {
+ udev_device_unref(device);
+ errno = -r;
+ return NULL;
+ }
+
+ return device;
+}
+
+int udev_device_copy_properties(struct udev_device *udev_device_dst, struct udev_device *udev_device_src) {
+ int r;
+
+ assert(udev_device_dst);
+ assert(udev_device_src);
+
+ r = device_copy_properties(udev_device_dst->device, udev_device_src->device);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+const char *udev_device_get_id_filename(struct udev_device *udev_device) {
+ const char *filename;
+ int r;
+
+ assert(udev_device);
+
+ r = device_get_id_filename(udev_device->device, &filename);
+ if (r < 0) {
+ errno = -r;
+ return NULL;
+ }
+
+ return filename;
+}
+
+int udev_device_set_watch_handle(struct udev_device *udev_device, int handle) {
- id = udev_device_get_id_filename(udev_device);
- if (id == NULL)
- return -1;
- strscpyl(filename, sizeof(filename), "/run/udev/data/", id, NULL);
+ assert(udev_device);
+
+ device_set_watch_handle(udev_device->device, handle);
+
+ return 0;
+}
+
+void udev_device_set_db_persist(struct udev_device *udev_device) {
+ assert(udev_device);
+
+ device_set_db_persist(udev_device->device);
+}
+
+int udev_device_set_devlink_priority(struct udev_device *udev_device, int priority) {
+ assert(udev_device);
+
+ device_set_devlink_priority(udev_device->device, priority);
- unlink(filename);
return 0;
}
+
+int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink) {
+ int r;
+
+ assert(udev_device);
+
+ r = device_add_devlink(udev_device->device, devlink);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int udev_device_add_property(struct udev_device *udev_device, const char *property, const char *value) {
+ int r;
+
+ assert(udev_device);
+
+ r = device_add_property(udev_device->device, property, value);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int udev_device_add_tag(struct udev_device *udev_device, const char *tag) {
+ int r;
+
+ assert(udev_device);
+
+ r = device_add_tag(udev_device->device, tag);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+void udev_device_remove_tag(struct udev_device *udev_device, const char *tag) {
+ assert(udev_device);
+
+ device_remove_tag(udev_device->device, tag);
+}
+
+void udev_device_cleanup_tags_list(struct udev_device *udev_device) {
+ assert(udev_device);
+
+ device_cleanup_tags(udev_device->device);
+}
+
+void udev_device_cleanup_devlinks_list(struct udev_device *udev_device) {
+ assert(udev_device);
+
+ device_cleanup_devlinks(udev_device->device);
+}
+
+void udev_device_set_info_loaded(struct udev_device *udev_device) {
+ assert(udev_device);
+
+ device_seal(udev_device->device);
+}
~ianmdlvl / elogind.git / blobdiff