- struct udev *udev;
- int refcount;
- struct udev_list sysattr_match_list;
- struct udev_list sysattr_nomatch_list;
- struct udev_list subsystem_match_list;
- struct udev_list subsystem_nomatch_list;
- struct udev_list sysname_match_list;
- struct udev_list properties_match_list;
- struct udev_list tags_match_list;
- struct udev_device *parent_match;
- struct udev_list devices_list;
- struct syspath *devices;
- unsigned int devices_cur;
- unsigned int devices_max;
- bool devices_uptodate:1;
- bool match_is_initialized;
+ struct udev *udev;
+ int refcount;
+ struct udev_list sysattr_match_list;
+ struct udev_list sysattr_nomatch_list;
+ struct udev_list subsystem_match_list;
+ struct udev_list subsystem_nomatch_list;
+ struct udev_list sysname_match_list;
+ struct udev_list properties_match_list;
+ struct udev_list tags_match_list;
+ struct udev_device *parent_match;
+ struct udev_list devices_list;
+ struct syspath *devices;
+ unsigned int devices_cur;
+ unsigned int devices_max;
+ bool devices_uptodate:1;
+ bool match_is_initialized;
- udev_enumerate = calloc(1, sizeof(struct udev_enumerate));
- if (udev_enumerate == NULL)
- return NULL;
- udev_enumerate->refcount = 1;
- udev_enumerate->udev = udev;
- udev_list_init(udev, &udev_enumerate->sysattr_match_list, false);
- udev_list_init(udev, &udev_enumerate->sysattr_nomatch_list, false);
- udev_list_init(udev, &udev_enumerate->subsystem_match_list, true);
- udev_list_init(udev, &udev_enumerate->subsystem_nomatch_list, true);
- udev_list_init(udev, &udev_enumerate->sysname_match_list, true);
- udev_list_init(udev, &udev_enumerate->properties_match_list, false);
- udev_list_init(udev, &udev_enumerate->tags_match_list, true);
- udev_list_init(udev, &udev_enumerate->devices_list, false);
- return udev_enumerate;
+ udev_enumerate = calloc(1, sizeof(struct udev_enumerate));
+ if (udev_enumerate == NULL)
+ return NULL;
+ udev_enumerate->refcount = 1;
+ udev_enumerate->udev = udev;
+ udev_list_init(udev, &udev_enumerate->sysattr_match_list, false);
+ udev_list_init(udev, &udev_enumerate->sysattr_nomatch_list, false);
+ udev_list_init(udev, &udev_enumerate->subsystem_match_list, true);
+ udev_list_init(udev, &udev_enumerate->subsystem_nomatch_list, true);
+ udev_list_init(udev, &udev_enumerate->sysname_match_list, true);
+ udev_list_init(udev, &udev_enumerate->properties_match_list, false);
+ udev_list_init(udev, &udev_enumerate->tags_match_list, true);
+ udev_list_init(udev, &udev_enumerate->devices_list, false);
+ return udev_enumerate;
- unsigned int i;
-
- if (udev_enumerate == NULL)
- return;
- udev_enumerate->refcount--;
- if (udev_enumerate->refcount > 0)
- return;
- udev_list_cleanup(&udev_enumerate->sysattr_match_list);
- udev_list_cleanup(&udev_enumerate->sysattr_nomatch_list);
- udev_list_cleanup(&udev_enumerate->subsystem_match_list);
- udev_list_cleanup(&udev_enumerate->subsystem_nomatch_list);
- udev_list_cleanup(&udev_enumerate->sysname_match_list);
- udev_list_cleanup(&udev_enumerate->properties_match_list);
- udev_list_cleanup(&udev_enumerate->tags_match_list);
- udev_device_unref(udev_enumerate->parent_match);
- udev_list_cleanup(&udev_enumerate->devices_list);
- for (i = 0; i < udev_enumerate->devices_cur; i++)
- free(udev_enumerate->devices[i].syspath);
- free(udev_enumerate->devices);
- free(udev_enumerate);
+ unsigned int i;
+
+ if (udev_enumerate == NULL)
+ return;
+ udev_enumerate->refcount--;
+ if (udev_enumerate->refcount > 0)
+ return;
+ udev_list_cleanup(&udev_enumerate->sysattr_match_list);
+ udev_list_cleanup(&udev_enumerate->sysattr_nomatch_list);
+ udev_list_cleanup(&udev_enumerate->subsystem_match_list);
+ udev_list_cleanup(&udev_enumerate->subsystem_nomatch_list);
+ udev_list_cleanup(&udev_enumerate->sysname_match_list);
+ udev_list_cleanup(&udev_enumerate->properties_match_list);
+ udev_list_cleanup(&udev_enumerate->tags_match_list);
+ udev_device_unref(udev_enumerate->parent_match);
+ udev_list_cleanup(&udev_enumerate->devices_list);
+ for (i = 0; i < udev_enumerate->devices_cur; i++)
+ free(udev_enumerate->devices[i].syspath);
+ free(udev_enumerate->devices);
+ free(udev_enumerate);
- char *path;
- struct syspath *entry;
-
- /* double array size if needed */
- if (udev_enumerate->devices_cur >= udev_enumerate->devices_max) {
- struct syspath *buf;
- unsigned int add;
-
- add = udev_enumerate->devices_max;
- if (add < 1024)
- add = 1024;
- buf = realloc(udev_enumerate->devices, (udev_enumerate->devices_max + add) * sizeof(struct syspath));
- if (buf == NULL)
- return -ENOMEM;
- udev_enumerate->devices = buf;
- udev_enumerate->devices_max += add;
- }
-
- path = strdup(syspath);
- if (path == NULL)
- return -ENOMEM;
- entry = &udev_enumerate->devices[udev_enumerate->devices_cur];
- entry->syspath = path;
- entry->len = strlen(path);
- udev_enumerate->devices_cur++;
- udev_enumerate->devices_uptodate = false;
- return 0;
+ char *path;
+ struct syspath *entry;
+
+ /* double array size if needed */
+ if (udev_enumerate->devices_cur >= udev_enumerate->devices_max) {
+ struct syspath *buf;
+ unsigned int add;
+
+ add = udev_enumerate->devices_max;
+ if (add < 1024)
+ add = 1024;
+ buf = realloc(udev_enumerate->devices, (udev_enumerate->devices_max + add) * sizeof(struct syspath));
+ if (buf == NULL)
+ return -ENOMEM;
+ udev_enumerate->devices = buf;
+ udev_enumerate->devices_max += add;
+ }
+
+ path = strdup(syspath);
+ if (path == NULL)
+ return -ENOMEM;
+ entry = &udev_enumerate->devices[udev_enumerate->devices_cur];
+ entry->syspath = path;
+ entry->len = strlen(path);
+ udev_enumerate->devices_cur++;
+ udev_enumerate->devices_uptodate = false;
+ return 0;
- /* For sound cards the control device must be enumerated last
- * to make sure it's the final device node that gets ACLs
- * applied. Applications rely on this fact and use ACL changes
- * on the control node as an indicator that the ACL change of
- * the entire sound card completed. The kernel makes this
- * guarantee when creating those devices, and hence we should
- * too when enumerating them. */
+ /* For sound cards the control device must be enumerated last
+ * to make sure it's the final device node that gets ACLs
+ * applied. Applications rely on this fact and use ACL changes
+ * on the control node as an indicator that the ACL change of
+ * the entire sound card completed. The kernel makes this
+ * guarantee when creating those devices, and hence we should
+ * too when enumerating them. */
- if (udev_enumerate == NULL)
- return NULL;
- if (!udev_enumerate->devices_uptodate) {
- unsigned int i;
- unsigned int max;
- struct syspath *prev = NULL, *move_later = NULL;
- size_t move_later_prefix = 0;
-
- udev_list_cleanup(&udev_enumerate->devices_list);
- qsort(udev_enumerate->devices, udev_enumerate->devices_cur, sizeof(struct syspath), syspath_cmp);
-
- max = udev_enumerate->devices_cur;
- for (i = 0; i < max; i++) {
- struct syspath *entry = &udev_enumerate->devices[i];
-
- /* skip duplicated entries */
- if (prev != NULL &&
- entry->len == prev->len &&
- memcmp(entry->syspath, prev->syspath, entry->len) == 0)
- continue;
- prev = entry;
-
- /* skip to be delayed devices, and add them to the end of the list */
- if (devices_delay_end(udev_enumerate->udev, entry->syspath)) {
- syspath_add(udev_enumerate, entry->syspath);
- /* need to update prev here for the case realloc() gives a different address */
- prev = &udev_enumerate->devices[i];
- continue;
- }
-
- /* skip to be delayed devices, and move the to
- * the point where the prefix changes. We can
- * only move one item at a time. */
- if (!move_later) {
- move_later_prefix = devices_delay_later(udev_enumerate->udev, entry->syspath);
-
- if (move_later_prefix > 0) {
- move_later = entry;
- continue;
- }
- }
-
- if (move_later &&
- strncmp(entry->syspath, move_later->syspath, move_later_prefix) != 0) {
-
- udev_list_entry_add(&udev_enumerate->devices_list, move_later->syspath, NULL);
- move_later = NULL;
- }
-
- udev_list_entry_add(&udev_enumerate->devices_list, entry->syspath, NULL);
- }
-
- if (move_later)
- udev_list_entry_add(&udev_enumerate->devices_list, move_later->syspath, NULL);
-
- /* add and cleanup delayed devices from end of list */
- for (i = max; i < udev_enumerate->devices_cur; i++) {
- struct syspath *entry = &udev_enumerate->devices[i];
-
- udev_list_entry_add(&udev_enumerate->devices_list, entry->syspath, NULL);
- free(entry->syspath);
- }
- udev_enumerate->devices_cur = max;
-
- udev_enumerate->devices_uptodate = true;
- }
- return udev_list_get_entry(&udev_enumerate->devices_list);
+ if (udev_enumerate == NULL)
+ return NULL;
+ if (!udev_enumerate->devices_uptodate) {
+ unsigned int i;
+ unsigned int max;
+ struct syspath *prev = NULL, *move_later = NULL;
+ size_t move_later_prefix = 0;
+
+ udev_list_cleanup(&udev_enumerate->devices_list);
+ qsort(udev_enumerate->devices, udev_enumerate->devices_cur, sizeof(struct syspath), syspath_cmp);
+
+ max = udev_enumerate->devices_cur;
+ for (i = 0; i < max; i++) {
+ struct syspath *entry = &udev_enumerate->devices[i];
+
+ /* skip duplicated entries */
+ if (prev != NULL &&
+ entry->len == prev->len &&
+ memcmp(entry->syspath, prev->syspath, entry->len) == 0)
+ continue;
+ prev = entry;
+
+ /* skip to be delayed devices, and add them to the end of the list */
+ if (devices_delay_end(udev_enumerate->udev, entry->syspath)) {
+ syspath_add(udev_enumerate, entry->syspath);
+ /* need to update prev here for the case realloc() gives a different address */
+ prev = &udev_enumerate->devices[i];
+ continue;
+ }
+
+ /* skip to be delayed devices, and move the to
+ * the point where the prefix changes. We can
+ * only move one item at a time. */
+ if (!move_later) {
+ move_later_prefix = devices_delay_later(udev_enumerate->udev, entry->syspath);
+
+ if (move_later_prefix > 0) {
+ move_later = entry;
+ continue;
+ }
+ }
+
+ if (move_later &&
+ strncmp(entry->syspath, move_later->syspath, move_later_prefix) != 0) {
+
+ udev_list_entry_add(&udev_enumerate->devices_list, move_later->syspath, NULL);
+ move_later = NULL;
+ }
+
+ udev_list_entry_add(&udev_enumerate->devices_list, entry->syspath, NULL);
+ }
+
+ if (move_later)
+ udev_list_entry_add(&udev_enumerate->devices_list, move_later->syspath, NULL);
+
+ /* add and cleanup delayed devices from end of list */
+ for (i = max; i < udev_enumerate->devices_cur; i++) {
+ struct syspath *entry = &udev_enumerate->devices[i];
+
+ udev_list_entry_add(&udev_enumerate->devices_list, entry->syspath, NULL);
+ free(entry->syspath);
+ }
+ udev_enumerate->devices_cur = max;
+
+ udev_enumerate->devices_uptodate = true;
+ }
+ return udev_list_get_entry(&udev_enumerate->devices_list);
- struct udev_list_entry *list_entry;
-
- /* skip list */
- udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->sysattr_nomatch_list)) {
- if (match_sysattr_value(dev, udev_list_entry_get_name(list_entry),
- udev_list_entry_get_value(list_entry)))
- return false;
- }
- /* include list */
- if (udev_list_get_entry(&udev_enumerate->sysattr_match_list) != NULL) {
- udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->sysattr_match_list)) {
- /* anything that does not match, will make it FALSE */
- if (!match_sysattr_value(dev, udev_list_entry_get_name(list_entry),
- udev_list_entry_get_value(list_entry)))
- return false;
- }
- return true;
- }
- return true;
+ struct udev_list_entry *list_entry;
+
+ /* skip list */
+ udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->sysattr_nomatch_list)) {
+ if (match_sysattr_value(dev, udev_list_entry_get_name(list_entry),
+ udev_list_entry_get_value(list_entry)))
+ return false;
+ }
+ /* include list */
+ if (udev_list_get_entry(&udev_enumerate->sysattr_match_list) != NULL) {
+ udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->sysattr_match_list)) {
+ /* anything that does not match, will make it FALSE */
+ if (!match_sysattr_value(dev, udev_list_entry_get_name(list_entry),
+ udev_list_entry_get_value(list_entry)))
+ return false;
+ }
+ return true;
+ }
+ return true;
- struct udev_list_entry *list_entry;
- bool match = false;
-
- /* no match always matches */
- if (udev_list_get_entry(&udev_enumerate->properties_match_list) == NULL)
- return true;
-
- /* loop over matches */
- udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->properties_match_list)) {
- const char *match_key = udev_list_entry_get_name(list_entry);
- const char *match_value = udev_list_entry_get_value(list_entry);
- struct udev_list_entry *property_entry;
-
- /* loop over device properties */
- udev_list_entry_foreach(property_entry, udev_device_get_properties_list_entry(dev)) {
- const char *dev_key = udev_list_entry_get_name(property_entry);
- const char *dev_value = udev_list_entry_get_value(property_entry);
-
- if (fnmatch(match_key, dev_key, 0) != 0)
- continue;
- if (match_value == NULL && dev_value == NULL) {
- match = true;
- goto out;
- }
- if (match_value == NULL || dev_value == NULL)
- continue;
- if (fnmatch(match_value, dev_value, 0) == 0) {
- match = true;
- goto out;
- }
- }
- }
+ struct udev_list_entry *list_entry;
+ bool match = false;
+
+ /* no match always matches */
+ if (udev_list_get_entry(&udev_enumerate->properties_match_list) == NULL)
+ return true;
+
+ /* loop over matches */
+ udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->properties_match_list)) {
+ const char *match_key = udev_list_entry_get_name(list_entry);
+ const char *match_value = udev_list_entry_get_value(list_entry);
+ struct udev_list_entry *property_entry;
+
+ /* loop over device properties */
+ udev_list_entry_foreach(property_entry, udev_device_get_properties_list_entry(dev)) {
+ const char *dev_key = udev_list_entry_get_name(property_entry);
+ const char *dev_value = udev_list_entry_get_value(property_entry);
+
+ if (fnmatch(match_key, dev_key, 0) != 0)
+ continue;
+ if (match_value == NULL && dev_value == NULL) {
+ match = true;
+ goto out;
+ }
+ if (match_value == NULL || dev_value == NULL)
+ continue;
+ if (fnmatch(match_value, dev_value, 0) == 0) {
+ match = true;
+ goto out;
+ }
+ }
+ }
- const char *basedir, const char *subdir1, const char *subdir2)
-{
- struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
- char path[UTIL_PATH_SIZE];
- size_t l;
- char *s;
- DIR *dir;
- struct dirent *dent;
-
- s = path;
- l = util_strpcpyl(&s, sizeof(path), udev_get_sys_path(udev), "/", basedir, NULL);
- if (subdir1 != NULL)
- l = util_strpcpyl(&s, l, "/", subdir1, NULL);
- if (subdir2 != NULL)
- util_strpcpyl(&s, l, "/", subdir2, NULL);
- dir = opendir(path);
- if (dir == NULL)
- return -ENOENT;
- for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
- char syspath[UTIL_PATH_SIZE];
- struct udev_device *dev;
-
- if (dent->d_name[0] == '.')
- continue;
-
- if (!match_sysname(udev_enumerate, dent->d_name))
- continue;
-
- util_strscpyl(syspath, sizeof(syspath), path, "/", dent->d_name, NULL);
- dev = udev_device_new_from_syspath(udev_enumerate->udev, syspath);
- if (dev == NULL)
- continue;
-
- if (udev_enumerate->match_is_initialized) {
- /*
- * All devices with a device node or network interfaces
- * possibly need udev to adjust the device node permission
- * or context, or rename the interface before it can be
- * reliably used from other processes.
- *
- * For now, we can only check these types of devices, we
- * might not store a database, and have no way to find out
- * for all other types of devices.
- */
- if (!udev_device_get_is_initialized(dev) &&
- (major(udev_device_get_devnum(dev)) > 0 || udev_device_get_ifindex(dev) > 0))
- goto nomatch;
- }
- if (!match_parent(udev_enumerate, dev))
- goto nomatch;
- if (!match_tag(udev_enumerate, dev))
- goto nomatch;
- if (!match_property(udev_enumerate, dev))
- goto nomatch;
- if (!match_sysattr(udev_enumerate, dev))
- goto nomatch;
-
- syspath_add(udev_enumerate, udev_device_get_syspath(dev));
+ const char *basedir, const char *subdir1, const char *subdir2)
+{
+ struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
+ char path[UTIL_PATH_SIZE];
+ size_t l;
+ char *s;
+ DIR *dir;
+ struct dirent *dent;
+
+ s = path;
+ l = util_strpcpyl(&s, sizeof(path), udev_get_sys_path(udev), "/", basedir, NULL);
+ if (subdir1 != NULL)
+ l = util_strpcpyl(&s, l, "/", subdir1, NULL);
+ if (subdir2 != NULL)
+ util_strpcpyl(&s, l, "/", subdir2, NULL);
+ dir = opendir(path);
+ if (dir == NULL)
+ return -ENOENT;
+ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+ char syspath[UTIL_PATH_SIZE];
+ struct udev_device *dev;
+
+ if (dent->d_name[0] == '.')
+ continue;
+
+ if (!match_sysname(udev_enumerate, dent->d_name))
+ continue;
+
+ util_strscpyl(syspath, sizeof(syspath), path, "/", dent->d_name, NULL);
+ dev = udev_device_new_from_syspath(udev_enumerate->udev, syspath);
+ if (dev == NULL)
+ continue;
+
+ if (udev_enumerate->match_is_initialized) {
+ /*
+ * All devices with a device node or network interfaces
+ * possibly need udev to adjust the device node permission
+ * or context, or rename the interface before it can be
+ * reliably used from other processes.
+ *
+ * For now, we can only check these types of devices, we
+ * might not store a database, and have no way to find out
+ * for all other types of devices.
+ */
+ if (!udev_device_get_is_initialized(dev) &&
+ (major(udev_device_get_devnum(dev)) > 0 || udev_device_get_ifindex(dev) > 0))
+ goto nomatch;
+ }
+ if (!match_parent(udev_enumerate, dev))
+ goto nomatch;
+ if (!match_tag(udev_enumerate, dev))
+ goto nomatch;
+ if (!match_property(udev_enumerate, dev))
+ goto nomatch;
+ if (!match_sysattr(udev_enumerate, dev))
+ goto nomatch;
+
+ syspath_add(udev_enumerate, udev_device_get_syspath(dev));
- udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->subsystem_nomatch_list)) {
- if (fnmatch(udev_list_entry_get_name(list_entry), subsystem, 0) == 0)
- return false;
- }
- if (udev_list_get_entry(&udev_enumerate->subsystem_match_list) != NULL) {
- udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->subsystem_match_list)) {
- if (fnmatch(udev_list_entry_get_name(list_entry), subsystem, 0) == 0)
- return true;
- }
- return false;
- }
- return true;
+ udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->subsystem_nomatch_list)) {
+ if (fnmatch(udev_list_entry_get_name(list_entry), subsystem, 0) == 0)
+ return false;
+ }
+ if (udev_list_get_entry(&udev_enumerate->subsystem_match_list) != NULL) {
+ udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->subsystem_match_list)) {
+ if (fnmatch(udev_list_entry_get_name(list_entry), subsystem, 0) == 0)
+ return true;
+ }
+ return false;
+ }
+ return true;
- util_strscpyl(path, sizeof(path), udev_get_sys_path(udev), "/", basedir, NULL);
- dir = opendir(path);
- if (dir == NULL)
- return -1;
- for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
- if (dent->d_name[0] == '.')
- continue;
- if (!match_subsystem(udev_enumerate, subsystem != NULL ? subsystem : dent->d_name))
- continue;
- scan_dir_and_add_devices(udev_enumerate, basedir, dent->d_name, subdir);
- }
- closedir(dir);
- return 0;
+ util_strscpyl(path, sizeof(path), udev_get_sys_path(udev), "/", basedir, NULL);
+ dir = opendir(path);
+ if (dir == NULL)
+ return -1;
+ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+ if (dent->d_name[0] == '.')
+ continue;
+ if (!match_subsystem(udev_enumerate, subsystem != NULL ? subsystem : dent->d_name))
+ continue;
+ scan_dir_and_add_devices(udev_enumerate, basedir, dent->d_name, subdir);
+ }
+ closedir(dir);
+ return 0;
- struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
- struct udev_list_entry *list_entry;
-
- /* scan only tagged devices, use tags reverse-index, instead of searching all devices in /sys */
- udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->tags_match_list)) {
- DIR *dir;
- struct dirent *dent;
- char path[UTIL_PATH_SIZE];
-
- util_strscpyl(path, sizeof(path), udev_get_run_path(udev), "/tags/",
- udev_list_entry_get_name(list_entry), NULL);
- dir = opendir(path);
- if (dir == NULL)
- continue;
- for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
- struct udev_device *dev;
-
- if (dent->d_name[0] == '.')
- continue;
-
- dev = udev_device_new_from_id_filename(udev_enumerate->udev, dent->d_name);
- if (dev == NULL)
- continue;
-
- if (!match_subsystem(udev_enumerate, udev_device_get_subsystem(dev)))
- goto nomatch;
- if (!match_sysname(udev_enumerate, udev_device_get_sysname(dev)))
- goto nomatch;
- if (!match_parent(udev_enumerate, dev))
- goto nomatch;
- if (!match_property(udev_enumerate, dev))
- goto nomatch;
- if (!match_sysattr(udev_enumerate, dev))
- goto nomatch;
-
- syspath_add(udev_enumerate, udev_device_get_syspath(dev));
+ struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
+ struct udev_list_entry *list_entry;
+
+ /* scan only tagged devices, use tags reverse-index, instead of searching all devices in /sys */
+ udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_enumerate->tags_match_list)) {
+ DIR *dir;
+ struct dirent *dent;
+ char path[UTIL_PATH_SIZE];
+
+ util_strscpyl(path, sizeof(path), udev_get_run_path(udev), "/tags/",
+ udev_list_entry_get_name(list_entry), NULL);
+ dir = opendir(path);
+ if (dir == NULL)
+ continue;
+ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+ struct udev_device *dev;
+
+ if (dent->d_name[0] == '.')
+ continue;
+
+ dev = udev_device_new_from_id_filename(udev_enumerate->udev, dent->d_name);
+ if (dev == NULL)
+ continue;
+
+ if (!match_subsystem(udev_enumerate, udev_device_get_subsystem(dev)))
+ goto nomatch;
+ if (!match_sysname(udev_enumerate, udev_device_get_sysname(dev)))
+ goto nomatch;
+ if (!match_parent(udev_enumerate, dev))
+ goto nomatch;
+ if (!match_property(udev_enumerate, dev))
+ goto nomatch;
+ if (!match_sysattr(udev_enumerate, dev))
+ goto nomatch;
+
+ syspath_add(udev_enumerate, udev_device_get_syspath(dev));
- if (dent->d_name[0] == '.')
- continue;
- if (dent->d_type != DT_DIR)
- continue;
- if (asprintf(&child, "%s/%s", path, dent->d_name) < 0)
- continue;
- parent_add_child(enumerate, child);
- if (maxdepth > 0)
- parent_crawl_children(enumerate, child, maxdepth-1);
- free(child);
- }
+ if (dent->d_name[0] == '.')
+ continue;
+ if (dent->d_type != DT_DIR)
+ continue;
+ if (asprintf(&child, "%s/%s", path, dent->d_name) < 0)
+ continue;
+ parent_add_child(enumerate, child);
+ if (maxdepth > 0)
+ parent_crawl_children(enumerate, child, maxdepth-1);
+ free(child);
+ }
- util_strscpyl(base, sizeof(base), udev_get_sys_path(udev), "/subsystem", NULL);
- if (stat(base, &statbuf) == 0) {
- /* we have /subsystem/, forget all the old stuff */
- dbg(udev, "searching '/subsystem/*/devices/*' dir\n");
- scan_dir(udev_enumerate, "subsystem", "devices", NULL);
- } else {
- dbg(udev, "searching '/bus/*/devices/*' dir\n");
- scan_dir(udev_enumerate, "bus", "devices", NULL);
- dbg(udev, "searching '/class/*' dir\n");
- scan_dir(udev_enumerate, "class", NULL, NULL);
- }
- return 0;
+ util_strscpyl(base, sizeof(base), udev_get_sys_path(udev), "/subsystem", NULL);
+ if (stat(base, &statbuf) == 0) {
+ /* we have /subsystem/, forget all the old stuff */
+ dbg(udev, "searching '/subsystem/*/devices/*' dir\n");
+ scan_dir(udev_enumerate, "subsystem", "devices", NULL);
+ } else {
+ dbg(udev, "searching '/bus/*/devices/*' dir\n");
+ scan_dir(udev_enumerate, "bus", "devices", NULL);
+ dbg(udev, "searching '/class/*' dir\n");
+ scan_dir(udev_enumerate, "class", NULL, NULL);
+ }
+ return 0;
- struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
- char base[UTIL_PATH_SIZE];
- struct stat statbuf;
- const char *subsysdir;
-
- if (udev_enumerate == NULL)
- return -EINVAL;
-
- /* all kernel modules */
- if (match_subsystem(udev_enumerate, "module")) {
- dbg(udev, "searching '%s/modules/*' dir\n", subsysdir);
- scan_dir_and_add_devices(udev_enumerate, "module", NULL, NULL);
- }
-
- util_strscpyl(base, sizeof(base), udev_get_sys_path(udev), "/subsystem", NULL);
- if (stat(base, &statbuf) == 0)
- subsysdir = "subsystem";
- else
- subsysdir = "bus";
-
- /* all subsystems (only buses support coldplug) */
- if (match_subsystem(udev_enumerate, "subsystem")) {
- dbg(udev, "searching '%s/*' dir\n", subsysdir);
- scan_dir_and_add_devices(udev_enumerate, subsysdir, NULL, NULL);
- }
-
- /* all subsystem drivers */
- if (match_subsystem(udev_enumerate, "drivers")) {
- dbg(udev, "searching '%s/*/drivers/*' dir\n", subsysdir);
- scan_dir(udev_enumerate, subsysdir, "drivers", "drivers");
- }
- return 0;
+ struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
+ char base[UTIL_PATH_SIZE];
+ struct stat statbuf;
+ const char *subsysdir;
+
+ if (udev_enumerate == NULL)
+ return -EINVAL;
+
+ /* all kernel modules */
+ if (match_subsystem(udev_enumerate, "module")) {
+ dbg(udev, "searching 'modules/*' dir\n");
+ scan_dir_and_add_devices(udev_enumerate, "module", NULL, NULL);
+ }
+
+ util_strscpyl(base, sizeof(base), udev_get_sys_path(udev), "/subsystem", NULL);
+ if (stat(base, &statbuf) == 0)
+ subsysdir = "subsystem";
+ else
+ subsysdir = "bus";
+
+ /* all subsystems (only buses support coldplug) */
+ if (match_subsystem(udev_enumerate, "subsystem")) {
+ dbg(udev, "searching '%s/*' dir\n", subsysdir);
+ scan_dir_and_add_devices(udev_enumerate, subsysdir, NULL, NULL);
+ }
+
+ /* all subsystem drivers */
+ if (match_subsystem(udev_enumerate, "drivers")) {
+ dbg(udev, "searching '%s/*/drivers/*' dir\n", subsysdir);
+ scan_dir(udev_enumerate, subsysdir, "drivers", "drivers");
+ }
+ return 0;