X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=libudev%2Flibudev-device-private.c;h=b78b6c9553503b61e0c9aa07731c6ce2b894b2da;hp=bf93834c10a7353eb03980caa04aad46bd4b581b;hb=eabac232a51b8d8dc2f6897018968bfe96d2912d;hpb=24d1076696ebe6696a8b8df414ab265aa6fc89c2

diff --git a/libudev/libudev-device-private.c b/libudev/libudev-device-private.c
index bf93834c1..b78b6c955 100644
--- a/libudev/libudev-device-private.c
+++ b/libudev/libudev-device-private.c
@@ -31,11 +31,15 @@ static void udev_device_tag(struct udev_device *dev, const char *tag, bool add)
 	id = udev_device_get_id_filename(dev);
 	if (id == NULL)
 		return;
-	util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/tags/", tag, "/", id, NULL);
+	util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/tags/", tag, "/", id, NULL);
 
 	if (add) {
+		int fd;
+
 		util_create_path(udev, filename);
-		symlink(udev_device_get_devpath(dev), filename);
+		fd = open(filename, O_WRONLY|O_CREAT|O_CLOEXEC|O_TRUNC|O_NOFOLLOW, 0444);
+		if (fd >= 0)
+			close(fd);
 	} else {
 		unlink(filename);
 	}
@@ -74,6 +78,7 @@ int udev_device_tag_index(struct udev_device *dev, struct udev_device *dev_old,
 
 static bool device_has_info(struct udev_device *udev_device)
 {
+	struct udev *udev = udev_device_get_udev(udev_device);
 	struct udev_list_entry *list_entry;
 
 	if (udev_device_get_devlinks_list_entry(udev_device) != NULL)
@@ -81,10 +86,16 @@ static bool device_has_info(struct udev_device *udev_device)
 	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_flags(list_entry))
+		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_devnode(udev_device) != NULL && udev_device_get_knodename(udev_device) != NULL) {
+		size_t devlen = strlen(udev_get_dev_path(udev))+1;
+
+		if (strcmp(&udev_device_get_devnode(udev_device)[devlen], udev_device_get_knodename(udev_device)) != 0)
+			return true;
+	}
 	if (udev_device_get_watch_handle(udev_device) >= 0)
 		return true;
 	return false;
@@ -98,17 +109,18 @@ int udev_device_update_db(struct udev_device *udev_device)
 	char filename[UTIL_PATH_SIZE];
 	char filename_tmp[UTIL_PATH_SIZE];
 	FILE *f;
-	size_t devlen = strlen(udev_get_dev_path(udev))+1;
 
 	id = udev_device_get_id_filename(udev_device);
 	if (id == NULL)
 		return -1;
 
 	has_info = device_has_info(udev_device);
-	util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/db/", id, NULL);
+	util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/data/", id, NULL);
 
 	/* do not store anything for otherwise empty devices */
-	if (!has_info && udev_device_get_devnode(udev_device) == NULL) {
+	if (!has_info &&
+	    major(udev_device_get_devnum(udev_device)) == 0 &&
+	    udev_device_get_ifindex(udev_device) == 0) {
 		unlink(filename);
 		return 0;
 	}
@@ -122,7 +134,15 @@ int udev_device_update_db(struct udev_device *udev_device)
 		return -1;
 	}
 
+	/*
+	 * 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) {
+		size_t devlen = strlen(udev_get_dev_path(udev))+1;
 		struct udev_list_entry *list_entry;
 
 		if (udev_device_get_devnode(udev_device) != NULL) {
@@ -134,8 +154,10 @@ int udev_device_update_db(struct udev_device *udev_device)
 			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:%llu\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_flags(list_entry))
+			if (!udev_list_entry_get_num(list_entry))
 				continue;
 			fprintf(f, "E:%s=%s\n",
 				udev_list_entry_get_name(list_entry),
@@ -161,7 +183,7 @@ int udev_device_delete_db(struct udev_device *udev_device)
 	id = udev_device_get_id_filename(udev_device);
 	if (id == NULL)
 		return -1;
-	util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/db/", id, NULL);
+	util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/data/", id, NULL);
 	unlink(filename);
 	return 0;
 }