merge udev/, libudev/, systemd/ files in src/; move extras/ to src/

1 files changed, 232 insertions, 0 deletions

diff --git a/src/udevadm-trigger.c b/src/udevadm-trigger.c
new file mode 100644
index 0000000000..2cee2297d4
--- /dev/null
+++ b/src/udevadm-trigger.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2008-2009 Kay Sievers <kay.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
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <syslog.h>
+#include <fnmatch.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "udev.h"
+
+static int verbose;
+static int dry_run;
+
+static void exec_list(struct udev_enumerate *udev_enumerate, const char *action)
+{
+	struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
+	struct udev_list_entry *entry;
+
+	udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(udev_enumerate)) {
+		char filename[UTIL_PATH_SIZE];
+		int fd;
+
+		if (verbose)
+			printf("%s\n", udev_list_entry_get_name(entry));
+		if (dry_run)
+			continue;
+		util_strscpyl(filename, sizeof(filename), udev_list_entry_get_name(entry), "/uevent", NULL);
+		fd = open(filename, O_WRONLY);
+		if (fd < 0) {
+			dbg(udev, "error on opening %s: %m\n", filename);
+			continue;
+		}
+		if (write(fd, action, strlen(action)) < 0)
+			info(udev, "error writing '%s' to '%s': %m\n", action, filename);
+		close(fd);
+	}
+}
+
+static const char *keyval(const char *str, const char **val, char *buf, size_t size)
+{
+	char *pos;
+
+	util_strscpy(buf, size,str);
+	pos = strchr(buf, '=');
+	if (pos != NULL) {
+		pos[0] = 0;
+		pos++;
+	}
+	*val = pos;
+	return buf;
+}
+
+static int adm_trigger(struct udev *udev, int argc, char *argv[])
+{
+	static const struct option options[] = {
+		{ "verbose", no_argument, NULL, 'v' },
+		{ "dry-run", no_argument, NULL, 'n' },
+		{ "type", required_argument, NULL, 't' },
+		{ "action", required_argument, NULL, 'c' },
+		{ "subsystem-match", required_argument, NULL, 's' },
+		{ "subsystem-nomatch", required_argument, NULL, 'S' },
+		{ "attr-match", required_argument, NULL, 'a' },
+		{ "attr-nomatch", required_argument, NULL, 'A' },
+		{ "property-match", required_argument, NULL, 'p' },
+		{ "tag-match", required_argument, NULL, 'g' },
+		{ "sysname-match", required_argument, NULL, 'y' },
+		{ "parent-match", required_argument, NULL, 'b' },
+		{ "help", no_argument, NULL, 'h' },
+		{}
+	};
+	enum {
+		TYPE_DEVICES,
+		TYPE_SUBSYSTEMS,
+	} device_type = TYPE_DEVICES;
+	const char *action = "change";
+	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;
+	}
+
+	for (;;) {
+		int option;
+		const char *key;
+		const char *val;
+		char buf[UTIL_PATH_SIZE];
+
+		option = getopt_long(argc, argv, "vng:o:t:hc:p:s:S:a:A:y:b:", options, NULL);
+		if (option == -1)
+			break;
+
+		switch (option) {
+		case 'v':
+			verbose = 1;
+			break;
+		case 'n':
+			dry_run = 1;
+			break;
+		case 't':
+			if (strcmp(optarg, "devices") == 0) {
+				device_type = TYPE_DEVICES;
+			} else if (strcmp(optarg, "subsystems") == 0) {
+				device_type = TYPE_SUBSYSTEMS;
+			} else {
+				err(udev, "unknown type --type=%s\n", optarg);
+				rc = 2;
+				goto exit;
+			}
+			break;
+		case 'c':
+			action = optarg;
+			break;
+		case 's':
+			udev_enumerate_add_match_subsystem(udev_enumerate, optarg);
+			break;
+		case 'S':
+			udev_enumerate_add_nomatch_subsystem(udev_enumerate, optarg);
+			break;
+		case 'a':
+			key = keyval(optarg, &val, buf, sizeof(buf));
+			udev_enumerate_add_match_sysattr(udev_enumerate, key, val);
+			break;
+		case 'A':
+			key = keyval(optarg, &val, buf, sizeof(buf));
+			udev_enumerate_add_nomatch_sysattr(udev_enumerate, key, val);
+			break;
+		case 'p':
+			key = keyval(optarg, &val, buf, sizeof(buf));
+			udev_enumerate_add_match_property(udev_enumerate, key, val);
+			break;
+		case 'g':
+			udev_enumerate_add_match_tag(udev_enumerate, optarg);
+			break;
+		case 'y':
+			udev_enumerate_add_match_sysname(udev_enumerate, optarg);
+			break;
+		case 'b': {
+			char path[UTIL_PATH_SIZE];
+			struct udev_device *dev;
+
+			/* add sys dir if needed */
+			if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0)
+				util_strscpyl(path, sizeof(path), udev_get_sys_path(udev), optarg, NULL);
+			else
+				util_strscpy(path, sizeof(path), optarg);
+			util_remove_trailing_chars(path, '/');
+			dev = udev_device_new_from_syspath(udev, path);
+			if (dev == NULL) {
+				err(udev, "unable to open the device '%s'\n", optarg);
+				rc = 2;
+				goto exit;
+			}
+			udev_enumerate_add_match_parent(udev_enumerate, dev);
+			/* drop reference immediately, enumerate pins the device as long as needed */
+			udev_device_unref(dev);
+			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"
+			       "  --type=                         type of events to trigger\n"
+			       "      devices                       sys devices (default)\n"
+			       "      subsystems                    sys subsystems and drivers\n"
+			       "  --action=<action>               event action value, default is \"change\"\n"
+			       "  --subsystem-match=<subsystem>   trigger devices from a matching subsystem\n"
+			       "  --subsystem-nomatch=<subsystem> exclude devices from a matching subsystem\n"
+			       "  --attr-match=<file[=<value>]>   trigger devices with a matching attribute\n"
+			       "  --attr-nomatch=<file[=<value>]> exclude devices with a matching attribute\n"
+			       "  --property-match=<key>=<value>  trigger devices with a matching property\n"
+			       "  --tag-match=<key>=<value>       trigger devices with a matching property\n"
+			       "  --sysname-match=<name>          trigger devices with a matching name\n"
+			       "  --parent-match=<name>           trigger devices with that parent device\n"
+			       "  --help\n\n");
+			goto exit;
+		default:
+			rc = 1;
+			goto exit;
+		}
+	}
+
+	switch (device_type) {
+	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;
+	}
+exit:
+	udev_enumerate_unref(udev_enumerate);
+	return rc;
+}
+
+const struct udevadm_cmd udevadm_trigger = {
+	.name = "trigger",
+	.cmd = adm_trigger,
+	.help = "request events from the kernel",
+};