udevadm: trigger: use libudev

2 files changed, 112 insertions, 604 deletions

diff --git a/udev/udevadm-trigger.c b/udev/udevadm-trigger.c
index a0f10dac68..67180d879e 100644
--- a/udev/udevadm-trigger.c
+++ b/udev/udevadm-trigger.c
@@ -1,6 +1,5 @@
 /*
- * Copyright (C) 2004-2008 Kay Sievers <kay@vrfy.org>
- * Copyright (C) 2006 Hannes Reinecke <hare@suse.de>
+ * Copyright (C) 2008 Kay Sievers <kayi.sievers@vrfy.org>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -33,503 +32,39 @@
 #include <sys/un.h>
 
 #include "udev.h"
-#include "udev_rules.h"
 
 static int verbose;
 static int dry_run;
-LIST_HEAD(device_list);
-LIST_HEAD(filter_subsystem_match_list);
-LIST_HEAD(filter_subsystem_nomatch_list);
-LIST_HEAD(filter_attr_match_list);
-LIST_HEAD(filter_attr_nomatch_list);
-static int sock = -1;
-static struct sockaddr_un saddr;
-static socklen_t saddrlen;
 
-/* devices that should run last cause of their dependencies */
-static int delay_device(const char *syspath)
+static void exec_list(struct udev_enumerate *udev_enumerate, const char *action)
 {
-	static const char *delay_device_list[] = {
-		"*/md*",
-		"*/dm-*",
-		NULL
-	};
-	int i;
-
-	for (i = 0; delay_device_list[i] != NULL; i++)
-		if (fnmatch(delay_device_list[i], syspath, 0) == 0)
-			return 1;
-	return 0;
-}
-
-static int device_list_insert(struct udev *udev, const char *path)
-{
-	char filename[UTIL_PATH_SIZE];
-	struct stat statbuf;
-
-	dbg(udev, "add '%s'\n" , path);
-
-	/* we only have a device, if we have an uevent file */
-	util_strlcpy(filename, path, sizeof(filename));
-	util_strlcat(filename, "/uevent", sizeof(filename));
-	if (stat(filename, &statbuf) < 0)
-		return -1;
-	if (!(statbuf.st_mode & S_IWUSR))
-		return -1;
-
-	/* resolve possible link to real target */
-	util_strlcpy(filename, path, sizeof(filename));
-	if (lstat(filename, &statbuf) < 0)
-		return -1;
-	if (S_ISLNK(statbuf.st_mode))
-		if (util_resolve_sys_link(udev, filename, sizeof(filename)) != 0)
-			return -1;
-
-	name_list_add(udev, &device_list, filename, 1);
-	return 0;
-}
-
-static void trigger_uevent(struct udev *udev, const char *syspath, const char *action)
-{
-	char filename[UTIL_PATH_SIZE];
-	int fd;
-
-	util_strlcpy(filename, syspath, sizeof(filename));
-	util_strlcat(filename, "/uevent", sizeof(filename));
-
-	if (verbose)
-		printf("%s\n", syspath);
-
-	if (dry_run)
-		return;
-
-	fd = open(filename, O_WRONLY);
-	if (fd < 0) {
-		dbg(udev, "error on opening %s: %m\n", filename);
-		return;
-	}
-
-	if (write(fd, action, strlen(action)) < 0)
-		info(udev, "error writing '%s' to '%s': %m\n", action, filename);
-
-	close(fd);
-}
-
-static int pass_to_socket(struct udev *udev, const char *syspath, const char *action, const char *env)
-{
-	struct udevice *udevice;
-	struct name_entry *name_loop;
-	char buf[4096];
-	size_t bufpos = 0;
-	ssize_t count;
-	char path[UTIL_PATH_SIZE];
-	int fd;
-	char link_target[UTIL_PATH_SIZE];
-	int len;
-	const char *devpath = &syspath[strlen(udev_get_sys_path(udev))];
-	int err = 0;
-
-	if (verbose)
-		printf("%s\n", devpath);
-
-	udevice = udev_device_init(udev);
-	if (udevice == NULL)
-		return -1;
-	udev_db_get_device(udevice, devpath);
-
-	/* add header */
-	bufpos = snprintf(buf, sizeof(buf)-1, "%s@%s", action, devpath);
-	bufpos++;
-
-	/* add cookie */
-	if (env != NULL) {
-		bufpos += snprintf(&buf[bufpos], sizeof(buf)-1, "%s", env);
-		bufpos++;
-	}
-
-	/* add standard keys */
-	bufpos += snprintf(&buf[bufpos], sizeof(buf)-1, "DEVPATH=%s", devpath);
-	bufpos++;
-	bufpos += snprintf(&buf[bufpos], sizeof(buf)-1, "ACTION=%s", action);
-	bufpos++;
-
-	/* add subsystem */
-	util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
-	util_strlcat(path, devpath, sizeof(path));
-	util_strlcat(path, "/subsystem", sizeof(path));
-	len = readlink(path, link_target, sizeof(link_target));
-	if (len > 0) {
-		char *pos;
-
-		link_target[len] = '\0';
-		pos = strrchr(link_target, '/');
-		if (pos != NULL) {
-			bufpos += snprintf(&buf[bufpos], sizeof(buf)-1, "SUBSYSTEM=%s", &pos[1]);
-			bufpos++;
-		}
-	}
-
-	/* add symlinks and node name */
-	path[0] = '\0';
-	list_for_each_entry(name_loop, &udevice->symlink_list, node) {
-		util_strlcat(path, udev_get_dev_path(udev), sizeof(path));
-		util_strlcat(path, "/", sizeof(path));
-		util_strlcat(path, name_loop->name, sizeof(path));
-		util_strlcat(path, " ", sizeof(path));
-	}
-	util_remove_trailing_chars(path, ' ');
-	if (path[0] != '\0') {
-		bufpos += snprintf(&buf[bufpos], sizeof(buf)-1, "DEVLINKS=%s", path);
-		bufpos++;
-	}
-	if (udevice->name[0] != '\0') {
-		util_strlcpy(path, udev_get_dev_path(udev), sizeof(path));
-		util_strlcat(path, "/", sizeof(path));
-		util_strlcat(path, udevice->name, sizeof(path));
-		bufpos += snprintf(&buf[bufpos], sizeof(buf)-1, "DEVNAME=%s", path);
-		bufpos++;
-	}
-
-	/* add keys from device "uevent" file */
-	util_strlcpy(path, syspath, sizeof(path));
-	util_strlcat(path, "/uevent", sizeof(path));
-	fd = open(path, O_RDONLY);
-	if (fd >= 0) {
-		char value[4096];
-
-		count = read(fd, value, sizeof(value));
-		close(fd);
-		if (count > 0) {
-			char *key;
-
-			value[count] = '\0';
-			key = value;
-			while (key[0] != '\0') {
-				char *next;
-
-				next = strchr(key, '\n');
-				if (next == NULL)
-					break;
-				next[0] = '\0';
-				bufpos += util_strlcpy(&buf[bufpos], key, sizeof(buf) - bufpos-1);
-				bufpos++;
-				key = &next[1];
-			}
-		}
-	}
-
-	/* add keys from database */
-	list_for_each_entry(name_loop, &udevice->env_list, node) {
-		bufpos += util_strlcpy(&buf[bufpos], name_loop->name, sizeof(buf) - bufpos-1);
-		bufpos++;
-	}
-	if (bufpos > sizeof(buf))
-		bufpos = sizeof(buf);
-
-	count = sendto(sock, &buf, bufpos, 0, (struct sockaddr *)&saddr, saddrlen);
-	if (count < 0)
-		err = -1;
+	struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
+	struct udev_list_entry *entry;
 
-	return err;
-}
-
-static void exec_list(struct udev *udev, const char *action, const char *env)
-{
-	struct name_entry *loop_device;
-	struct name_entry *tmp_device;
-
-	list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
-		if (delay_device(loop_device->name))
-			continue;
-		if (sock >= 0)
-			pass_to_socket(udev, loop_device->name, action, env);
-		else
-			trigger_uevent(udev, loop_device->name, action);
-		list_del(&loop_device->node);
-		free(loop_device);
-	}
-
-	/* trigger remaining delayed devices */
-	list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
-		if (sock >= 0)
-			pass_to_socket(udev, loop_device->name, action, env);
-		else
-			trigger_uevent(udev, loop_device->name, action);
-		list_del(&loop_device->node);
-		free(loop_device);
-	}
-}
-
-static int subsystem_filtered(const char *subsystem)
-{
-	struct name_entry *loop_name;
-
-	/* skip devices matching the listed subsystems */
-	list_for_each_entry(loop_name, &filter_subsystem_nomatch_list, node)
-		if (fnmatch(loop_name->name, subsystem, 0) == 0)
-			return 1;
-
-	/* skip devices not matching the listed subsystems */
-	if (!list_empty(&filter_subsystem_match_list)) {
-		list_for_each_entry(loop_name, &filter_subsystem_match_list, node)
-			if (fnmatch(loop_name->name, subsystem, 0) == 0)
-				return 0;
-		return 1;
-	}
-
-	return 0;
-}
-
-static int attr_match(const char *path, const char *attr_value)
-{
-	char attr[UTIL_NAME_SIZE];
-	char file[UTIL_PATH_SIZE];
-	char *match_value;
-
-	util_strlcpy(attr, attr_value, sizeof(attr));
-
-	/* separate attr and match value */
-	match_value = strchr(attr, '=');
-	if (match_value != NULL) {
-		match_value[0] = '\0';
-		match_value = &match_value[1];
-	}
-
-	util_strlcpy(file, path, sizeof(file));
-	util_strlcat(file, "/", sizeof(file));
-	util_strlcat(file, attr, sizeof(file));
-
-	if (match_value != NULL) {
-		/* match file content */
-		char value[UTIL_NAME_SIZE];
+	udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(udev_enumerate)) {
+		char filename[UTIL_PATH_SIZE];
 		int fd;
-		ssize_t size;
 
-		fd = open(file, O_RDONLY);
-		if (fd < 0)
-			return 0;
-		size = read(fd, value, sizeof(value));
-		close(fd);
-		if (size < 0)
-			return 0;
-		value[size] = '\0';
-		util_remove_trailing_chars(value, '\n');
-
-		/* match if attribute value matches */
-		if (fnmatch(match_value, value, 0) == 0)
-			return 1;
-	} else {
-		/* match if attribute exists */
-		struct stat statbuf;
-
-		if (stat(file, &statbuf) == 0)
-			return 1;
-	}
-	return 0;
-}
-
-static int attr_filtered(const char *path)
-{
-	struct name_entry *loop_name;
-
-	/* skip devices matching the listed sysfs attributes */
-	list_for_each_entry(loop_name, &filter_attr_nomatch_list, node)
-		if (attr_match(path, loop_name->name))
-			return 1;
-
-	/* skip devices not matching the listed sysfs attributes */
-	if (!list_empty(&filter_attr_match_list)) {
-		list_for_each_entry(loop_name, &filter_attr_match_list, node)
-			if (attr_match(path, loop_name->name))
-				return 0;
-		return 1;
-	}
-	return 0;
-}
-
-enum scan_type {
-	SCAN_DEVICES,
-	SCAN_SUBSYSTEM,
-};
-
-static void scan_subsystem(struct udev *udev, const char *subsys, enum scan_type scan)
-{
-	char base[UTIL_PATH_SIZE];
-	DIR *dir;
-	struct dirent *dent;
-	const char *subdir;
-
-	if (scan == SCAN_DEVICES)
-		subdir = "/devices";
-	else if (scan == SCAN_SUBSYSTEM)
-		subdir = "/drivers";
-	else
-		return;
-
-	util_strlcpy(base, udev_get_sys_path(udev), sizeof(base));
-	util_strlcat(base, "/", sizeof(base));
-	util_strlcat(base, subsys, sizeof(base));
-
-	dir = opendir(base);
-	if (dir != NULL) {
-		for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-			char dirname[UTIL_PATH_SIZE];
-			DIR *dir2;
-			struct dirent *dent2;
-
-			if (dent->d_name[0] == '.')
-				continue;
-
-			if (scan == SCAN_DEVICES)
-				if (subsystem_filtered(dent->d_name))
-					continue;
-
-			util_strlcpy(dirname, base, sizeof(dirname));
-			util_strlcat(dirname, "/", sizeof(dirname));
-			util_strlcat(dirname, dent->d_name, sizeof(dirname));
-
-			if (scan == SCAN_SUBSYSTEM) {
-				if (attr_filtered(dirname))
-					continue;
-				if (!subsystem_filtered("subsystem"))
-					device_list_insert(udev, dirname);
-				if (subsystem_filtered("drivers"))
-					continue;
-			}
-
-			util_strlcat(dirname, subdir, sizeof(dirname));
-
-			/* look for devices/drivers */
-			dir2 = opendir(dirname);
-			if (dir2 != NULL) {
-				for (dent2 = readdir(dir2); dent2 != NULL; dent2 = readdir(dir2)) {
-					char dirname2[UTIL_PATH_SIZE];
-
-					if (dent2->d_name[0] == '.')
-						continue;
-
-					util_strlcpy(dirname2, dirname, sizeof(dirname2));
-					util_strlcat(dirname2, "/", sizeof(dirname2));
-					util_strlcat(dirname2, dent2->d_name, sizeof(dirname2));
-					if (attr_filtered(dirname2))
-						continue;
-					device_list_insert(udev, dirname2);
-				}
-				closedir(dir2);
-			}
-		}
-		closedir(dir);
-	}
-}
-
-static void scan_block(struct udev *udev)
-{
-	char base[UTIL_PATH_SIZE];
-	DIR *dir;
-	struct dirent *dent;
-
-	if (subsystem_filtered("block"))
-		return;
-
-	util_strlcpy(base, udev_get_sys_path(udev), sizeof(base));
-	util_strlcat(base, "/block", sizeof(base));
-
-	dir = opendir(base);
-	if (dir != NULL) {
-		for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-			char dirname[UTIL_PATH_SIZE];
-			DIR *dir2;
-			struct dirent *dent2;
-
-			if (dent->d_name[0] == '.')
-				continue;
-
-			util_strlcpy(dirname, base, sizeof(dirname));
-			util_strlcat(dirname, "/", sizeof(dirname));
-			util_strlcat(dirname, dent->d_name, sizeof(dirname));
-			if (attr_filtered(dirname))
-				continue;
-			if (device_list_insert(udev, dirname) != 0)
-				continue;
-
-			/* look for partitions */
-			dir2 = opendir(dirname);
-			if (dir2 != NULL) {
-				for (dent2 = readdir(dir2); dent2 != NULL; dent2 = readdir(dir2)) {
-					char dirname2[UTIL_PATH_SIZE];
-
-					if (dent2->d_name[0] == '.')
-						continue;
-
-					if (!strcmp(dent2->d_name,"device"))
-						continue;
-
-					util_strlcpy(dirname2, dirname, sizeof(dirname2));
-					util_strlcat(dirname2, "/", sizeof(dirname2));
-					util_strlcat(dirname2, dent2->d_name, sizeof(dirname2));
-					if (attr_filtered(dirname2))
-						continue;
-					device_list_insert(udev, dirname2);
-				}
-				closedir(dir2);
-			}
-		}
-		closedir(dir);
-	}
-}
-
-static void scan_class(struct udev *udev)
-{
-	char base[UTIL_PATH_SIZE];
-	DIR *dir;
-	struct dirent *dent;
-
-	util_strlcpy(base, udev_get_sys_path(udev), sizeof(base));
-	util_strlcat(base, "/class", sizeof(base));
-
-	dir = opendir(base);
-	if (dir != NULL) {
-		for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-			char dirname[UTIL_PATH_SIZE];
-			DIR *dir2;
-			struct dirent *dent2;
-
-			if (dent->d_name[0] == '.')
-				continue;
-
-			if (subsystem_filtered(dent->d_name))
-				continue;
-
-			util_strlcpy(dirname, base, sizeof(dirname));
-			util_strlcat(dirname, "/", sizeof(dirname));
-			util_strlcat(dirname, dent->d_name, sizeof(dirname));
-			dir2 = opendir(dirname);
-			if (dir2 != NULL) {
-				for (dent2 = readdir(dir2); dent2 != NULL; dent2 = readdir(dir2)) {
-					char dirname2[UTIL_PATH_SIZE];
-
-					if (dent2->d_name[0] == '.')
-						continue;
-
-					if (!strcmp(dent2->d_name, "device"))
-						continue;
-
-					util_strlcpy(dirname2, dirname, sizeof(dirname2));
-					util_strlcat(dirname2, "/", sizeof(dirname2));
-					util_strlcat(dirname2, dent2->d_name, sizeof(dirname2));
-					if (attr_filtered(dirname2))
-						continue;
-					device_list_insert(udev, dirname2);
-				}
-				closedir(dir2);
-			}
+		if (verbose)
+			printf("%s\n", udev_list_entry_get_name(entry));
+		if (dry_run)
+			continue;
+		util_strlcpy(filename, udev_list_entry_get_name(entry), sizeof(filename));
+		util_strlcat(filename, "/uevent", sizeof(filename));
+		fd = open(filename, O_WRONLY);
+		if (fd < 0) {
+			dbg(udev, "error on opening %s: %m\n", filename);
+			continue;
 		}
-		closedir(dir);
+		if (write(fd, action, strlen(action)) < 0)
+			info(udev, "error writing '%s' to '%s': %m\n", action, filename);
+		close(fd);
 	}
 }
 
-static void scan_failed(struct udev *udev)
+static int enumerate_scan_failed(struct udev_enumerate *udev_enumerate)
 {
+	struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
 	char base[UTIL_PATH_SIZE];
 	DIR *dir;
 	struct dirent *dent;
@@ -540,49 +75,63 @@ static void scan_failed(struct udev *udev)
 	dir = opendir(base);
 	if (dir != NULL) {
 		for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-			char device[UTIL_PATH_SIZE];
+			char syspath[UTIL_PATH_SIZE];
 			size_t start;
+			struct udev_device *device;
 
 			if (dent->d_name[0] == '.')
 				continue;
-
-			start = util_strlcpy(device, udev_get_sys_path(udev), sizeof(device));
-			if(start >= sizeof(device))
-				start = sizeof(device) - 1;
-			util_strlcat(device, dent->d_name, sizeof(device));
-			util_path_decode(&device[start]);
-			device_list_insert(udev, device);
+			start = util_strlcpy(syspath, udev_get_sys_path(udev), sizeof(syspath));
+			util_strlcat(syspath, dent->d_name, sizeof(syspath));
+			util_path_decode(&syspath[start]);
+			device = udev_device_new_from_syspath(udev, syspath);
+			if (device == NULL)
+				continue;
+			udev_enumerate_add_device(udev_enumerate, device);
+			udev_device_unref(device);
 		}
 		closedir(dir);
 	}
+	return 0;
 }
 
 int udevadm_trigger(struct udev *udev, int argc, char *argv[])
 {
-	int failed = 0;
-	const char *sockpath = NULL;
-	int option;
-	const char *action = "add";
-	const char *env = NULL;
 	static const struct option options[] = {
 		{ "verbose", 0, NULL, 'v' },
 		{ "dry-run", 0, NULL, 'n' },
+		{ "type", 0, NULL, 't' },
 		{ "retry-failed", 0, NULL, 'F' },
-		{ "socket", 1, NULL, 'o' },
-		{ "help", 0, NULL, 'h' },
 		{ "action", 1, NULL, 'c' },
 		{ "subsystem-match", 1, NULL, 's' },
 		{ "subsystem-nomatch", 1, NULL, 'S' },
 		{ "attr-match", 1, NULL, 'a' },
 		{ "attr-nomatch", 1, NULL, 'A' },
-		{ "env", 1, NULL, 'e' },
+		{ "help", 0, NULL, 'h' },
 		{}
 	};
+	enum {
+		TYPE_DEVICES,
+		TYPE_SUBSYSTEMS,
+		TYPE_FAILED,
+	} device_type = TYPE_DEVICES;
+	const char *action = "add";
+	struct udev_enumerate *udev_enumerate;
+	int rc = 0;
 
 	dbg(udev, "version %s\n", VERSION);
+	udev_enumerate = udev_enumerate_new(udev);
+	if (udev_enumerate == NULL) {
+		rc = 1;
+		goto exit;
+	}
 
 	while (1) {
-		option = getopt_long(argc, argv, "vnFo:hce::s:S:a:A:", options, NULL);
+		int option;
+		char attr[UTIL_PATH_SIZE];
+		char *val;
+
+		option = getopt_long(argc, argv, "vnFo:t:hce::s:S:a:A:", options, NULL);
 		if (option == -1)
 			break;
 
@@ -593,45 +142,63 @@ int udevadm_trigger(struct udev *udev, int argc, char *argv[])
 		case 'n':
 			dry_run = 1;
 			break;
-		case 'F':
-			failed = 1;
+		case 't':
+			if (strcmp(optarg, "devices") == 0) {
+				device_type = TYPE_DEVICES;
+			} else if (strcmp(optarg, "subsystems") == 0) {
+				device_type = TYPE_SUBSYSTEMS;
+			} else if (strcmp(optarg, "failed") == 0) {
+				device_type = TYPE_FAILED;
+			} else {
+				fprintf(stderr, "unknown type --type=%s\n", optarg);
+				err(udev, "unknown type --type=%s\n", optarg);
+				rc = 2;
+				goto exit;
+			}
 			break;
-		case 'o':
-			sockpath = optarg;
+		case 'F':
+			device_type = TYPE_FAILED;
 			break;
 		case 'c':
 			action = optarg;
 			break;
-		case 'e':
-			if (strchr(optarg, '=') != NULL)
-				env = optarg;
-			break;
 		case 's':
-			name_list_add(udev, &filter_subsystem_match_list, optarg, 0);
+			udev_enumerate_add_match_subsystem(udev_enumerate, optarg);
 			break;
 		case 'S':
-			name_list_add(udev, &filter_subsystem_nomatch_list, optarg, 0);
+			udev_enumerate_add_nomatch_subsystem(udev_enumerate, optarg);
 			break;
 		case 'a':
-			name_list_add(udev, &filter_attr_match_list, optarg, 0);
+			util_strlcpy(attr, optarg, sizeof(attr));
+			val = strchr(attr, '=');
+			if (val != NULL) {
+				val[0] = 0;
+				val = &val[1];
+			}
+			udev_enumerate_add_match_attr(udev_enumerate, attr, val);
 			break;
 		case 'A':
-			name_list_add(udev, &filter_attr_nomatch_list, optarg, 0);
+			util_strlcpy(attr, optarg, sizeof(attr));
+			val = strchr(attr, '=');
+			if (val != NULL) {
+				val[0] = 0;
+				val = &val[1];
+			}
+			udev_enumerate_add_nomatch_attr(udev_enumerate, attr, val);
 			break;
 		case 'h':
 			printf("Usage: udevadm trigger OPTIONS\n"
 			       "  --verbose                       print the list of devices while running\n"
 			       "  --dry-run                       do not actually trigger the events\n"
-			       "  --retry-failed                  trigger only the events which have been\n"
-			       "                                  marked as failed during a previous run\n"
-			       "  --socket=<socket path>          pass events to socket instead of triggering kernel events\n"
-			       "  --env=<KEY>=<value>             pass an additional key (works only with --socket=)\n"
+			       "  --type=                         type of events to trigger\n"
+			       "      devices                       sys devices\n"
+			       "      subsystems                    sys subsystems and drivers\n"
+			       "      failed                        trigger only the events which have been\n"
+			       "                                    marked as failed during a previous run\n"
 			       "  --subsystem-match=<subsystem>   trigger devices from a matching subystem\n"
 			       "  --subsystem-nomatch=<subsystem> exclude devices from a matching subystem\n"
-			       "  --attr-match=<file[=<value>]>   trigger devices with a matching sysfs\n"
-			       "                                  attribute\n"
-			       "  --attr-nomatch=<file[=<value>]> exclude devices with a matching sysfs\n"
-			       "                                  attribute\n"
+			       "  --attr-match=<file[=<value>]>   trigger devices with a matching attribute\n"
+			       "  --attr-nomatch=<file[=<value>]> exclude devices with a matching attribute\n"
 			       "  --help                          print this text\n"
 			       "\n");
 			goto exit;
@@ -640,67 +207,23 @@ int udevadm_trigger(struct udev *udev, int argc, char *argv[])
 		}
 	}
 
-	if (sockpath != NULL) {
-		struct stat stats;
-
-		sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
-		memset(&saddr, 0x00, sizeof(struct sockaddr_un));
-		saddr.sun_family = AF_LOCAL;
-		if (sockpath[0] == '@') {
-			/* abstract namespace socket requested */
-			util_strlcpy(&saddr.sun_path[1], &sockpath[1], sizeof(saddr.sun_path)-1);
-			saddrlen = offsetof(struct sockaddr_un, sun_path) + 1 + strlen(&saddr.sun_path[1]);
-		} else if (stat(sockpath, &stats) == 0 && S_ISSOCK(stats.st_mode)) {
-			/* existing socket file */
-			util_strlcpy(saddr.sun_path, sockpath, sizeof(saddr.sun_path));
-			saddrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path);
-		} else {
-			/* no socket file, assume abstract namespace socket */
-			util_strlcpy(&saddr.sun_path[1], sockpath, sizeof(saddr.sun_path)-1);
-			saddrlen = offsetof(struct sockaddr_un, sun_path) + 1 + strlen(&saddr.sun_path[1]);
-		}
-	} else if (env != NULL) {
-		fprintf(stderr, "error: --env= only valid with --socket= option\n");
+	switch (device_type) {
+	case TYPE_FAILED:
+		enumerate_scan_failed(udev_enumerate);
+		exec_list(udev_enumerate, action);
+		goto exit;
+	case TYPE_SUBSYSTEMS:
+		udev_enumerate_scan_subsystems(udev_enumerate);
+		exec_list(udev_enumerate, action);
+		goto exit;
+	case TYPE_DEVICES:
+		udev_enumerate_scan_devices(udev_enumerate);
+		exec_list(udev_enumerate, action);
+		goto exit;
+	default:
 		goto exit;
 	}
-
-	if (failed) {
-		scan_failed(udev);
-		exec_list(udev, action, env);
-	} else {
-		char base[UTIL_PATH_SIZE];
-		struct stat statbuf;
-
-		/* if we have /sys/subsystem, forget all the old stuff */
-		util_strlcpy(base, udev_get_sys_path(udev), sizeof(base));
-		util_strlcat(base, "/subsystem", sizeof(base));
-		if (stat(base, &statbuf) == 0) {
-			scan_subsystem(udev, "subsystem", SCAN_SUBSYSTEM);
-			exec_list(udev, action, env);
-			scan_subsystem(udev, "subsystem", SCAN_DEVICES);
-			exec_list(udev, action, env);
-		} else {
-			scan_subsystem(udev, "bus", SCAN_SUBSYSTEM);
-			exec_list(udev, action, env);
-			scan_subsystem(udev, "bus", SCAN_DEVICES);
-			scan_class(udev);
-
-			/* scan "block" if it isn't a "class" */
-			util_strlcpy(base, udev_get_sys_path(udev), sizeof(base));
-			util_strlcat(base, "/class/block", sizeof(base));
-			if (stat(base, &statbuf) != 0)
-				scan_block(udev);
-			exec_list(udev, action, env);
-		}
-	}
-
 exit:
-	name_list_cleanup(udev, &filter_subsystem_match_list);
-	name_list_cleanup(udev, &filter_subsystem_nomatch_list);
-	name_list_cleanup(udev, &filter_attr_match_list);
-	name_list_cleanup(udev, &filter_attr_nomatch_list);
-
-	if (sock >= 0)
-		close(sock);
-	return 0;
+	udev_enumerate_unref(udev_enumerate);
+	return rc;
 }
diff --git a/udev/udevadm.xml b/udev/udevadm.xml
index b86b33ac44..b7687d5dd1 100644
--- a/udev/udevadm.xml
+++ b/udev/udevadm.xml
@@ -150,7 +150,7 @@
         </refsect2>
 
         <refsect2><title>udevadm trigger <optional>options</optional></title>
-          <para>Request device uevents, usually used to replay events at system coldplug.</para>
+          <para>Request device events from the kernel. Usually used to replay events at system coldplug time.</para>
           <variablelist>
             <varlistentry>
               <term><option>--verbose</option></term>
@@ -165,15 +165,17 @@
               </listitem>
             </varlistentry>
             <varlistentry>
-              <term><option>--retry-failed</option></term>
+              <term><option>--type=<replaceable>type</replaceable></option></term>
               <listitem>
-                <para>Trigger only the events which are failed during a previous run.</para>
+                <para>Trigger a specific type of devices. Valid types are:
+                <command>devices</command>, <command>subsystems</command>, <command>failed</command>.
+                The default value is <command>devices</command>.</para>
               </listitem>
             </varlistentry>
             <varlistentry>
               <term><option>--action=<replaceable>action</replaceable></option></term>
               <listitem>
-                <para>Type of event to be triggered. The default value is "add".</para>
+                <para>Type of event to be triggered. The default value is <command>add</command>.</para>
               </listitem>
             </varlistentry>
             <varlistentry>
@@ -208,23 +210,6 @@
                 of the sysfs attribute is checked. This option can be specified multiple times.</para>
               </listitem>
             </varlistentry>
-            <varlistentry>
-              <term><option>--socket=<replaceable>path</replaceable></option></term>
-              <listitem>
-                <para>Pass the synthesized events to the specified socket, instead of triggering
-                a global kernel event. All available event values will be send in the same format
-                the kernel sends an uevent, or <option>RUN+="socket:<replaceable>path</replaceable>"</option>
-                sends a message. If the first character of the specified path is an @ character,
-                an abstract namespace socket is used, instead of an existing socket file.</para>
-              </listitem>
-            </varlistentry>
-            <varlistentry>
-              <term><option>--env=<replaceable>KEY</replaceable>=<replaceable>value</replaceable></option></term>
-              <listitem>
-                <para>Pass an additional environemt key to the event. This works only with the
-                --socket option.</para>
-              </listitem>
-            </varlistentry>
           </variablelist>
         </refsect2>