X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fudev%2Fudevd.c;h=2e6c71352f8776f03c717bdc8af9cb30f6bea679;hb=cc56fafeebf814ef035e549115cf1850e6473fa5;hp=04014b468aa286a2d1db0a2c2e30d21a31256782;hpb=3f56f784b98a4b0ad45409a9a19fd787cd7ae455;p=elogind.git

diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 04014b468..2e6c71352 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -986,11 +986,20 @@ static void kernel_cmdline_options(struct udev *udev) {
                         log_set_max_level(prio);
                         udev_set_log_priority(udev, prio);
                 } else if (startswith(opt, "udev.children-max=")) {
-                        arg_children_max = strtoul(opt + 18, NULL, 0);
+                        r = safe_atoi(opt + 18, &arg_children_max);
+                        if (r < 0)
+                                log_warning("Invalid udev.children-max ignored: %s", opt + 18);
                 } else if (startswith(opt, "udev.exec-delay=")) {
-                        arg_exec_delay = strtoul(opt + 16, NULL, 0);
+                        r = safe_atoi(opt + 16, &arg_exec_delay);
+                        if (r < 0)
+                                log_warning("Invalid udev.exec-delay ignored: %s", opt + 16);
                 } else if (startswith(opt, "udev.event-timeout=")) {
-                        arg_event_timeout_usec = strtoul(opt + 16, NULL, 0) * USEC_PER_SEC;
+                        r = safe_atou64(opt + 16, &arg_event_timeout_usec);
+                        if (r < 0) {
+                                log_warning("Invalid udev.event-timeout ignored: %s", opt + 16);
+                                break;
+                        }
+                        arg_event_timeout_usec *= USEC_PER_SEC;
                         arg_event_timeout_warn_usec = (arg_event_timeout_usec / 3) ? : 1;
                 }
 
@@ -1031,6 +1040,7 @@ static int parse_argv(int argc, char *argv[]) {
         assert(argv);
 
         while ((c = getopt_long(argc, argv, "c:de:DtN:hV", options, NULL)) >= 0) {
+                int r;
 
                 switch (c) {
 
@@ -1038,14 +1048,23 @@ static int parse_argv(int argc, char *argv[]) {
                         arg_daemonize = true;
                         break;
                 case 'c':
-                        arg_children_max = strtoul(optarg, NULL, 0);
+                        r = safe_atoi(optarg, &arg_children_max);
+                        if (r < 0)
+                                log_warning("Invalid --children-max ignored: %s", optarg);
                         break;
                 case 'e':
-                        arg_exec_delay = strtoul(optarg, NULL, 0);
+                        r = safe_atoi(optarg, &arg_exec_delay);
+                        if (r < 0)
+                                log_warning("Invalid --exec-delay ignored: %s", optarg);
                         break;
                 case 't':
-                        arg_event_timeout_usec = strtoul(optarg, NULL, 0) * USEC_PER_SEC;
-                        arg_event_timeout_warn_usec = (arg_event_timeout_usec / 3) ? : 1;
+                        r = safe_atou64(optarg, &arg_event_timeout_usec);
+                        if (r < 0)
+                                log_warning("Invalid --event-timeout ignored: %s", optarg);
+                        else {
+                                arg_event_timeout_usec *= USEC_PER_SEC;
+                                arg_event_timeout_warn_usec = (arg_event_timeout_usec / 3) ? : 1;
+                        }
                         break;
                 case 'D':
                         arg_debug = true;
@@ -1104,9 +1123,6 @@ int main(int argc, char *argv[]) {
         udev_set_log_fn(udev, udev_main_log);
         log_set_max_level(udev_get_log_priority(udev));
 
-        log_debug("version %s", VERSION);
-        label_init("/dev");
-
         r = parse_argv(argc, argv);
         if (r <= 0)
                 goto exit;
@@ -1123,11 +1139,26 @@ int main(int argc, char *argv[]) {
                 goto exit;
         }
 
+        r = mac_selinux_init("/dev");
+        if (r < 0) {
+                log_error("could not initialize labelling: %s", strerror(-r));
+                goto exit;
+        }
+
         /* set umask before creating any file/directory */
-        chdir("/");
+        r = chdir("/");
+        if (r < 0) {
+                log_error("could not change dir to /: %m");
+                goto exit;
+        }
+
         umask(022);
 
-        mkdir("/run/udev", 0755);
+        r = mkdir("/run/udev", 0755);
+        if (r < 0 && errno != EEXIST) {
+                log_error("could not create /run/udev: %m");
+                goto exit;
+        }
 
         dev_setup(NULL);
 
@@ -1200,6 +1231,20 @@ int main(int argc, char *argv[]) {
 
         udev_monitor_set_receive_buffer_size(monitor, 128 * 1024 * 1024);
 
+        log_info("starting version " VERSION "\n");
+
+        udev_builtin_init(udev);
+
+        rules = udev_rules_new(udev, arg_resolve_names);
+        if (rules == NULL) {
+                log_error("error reading rules");
+                goto exit;
+        }
+
+        rc = udev_rules_apply_static_dev_perms(rules);
+        if (rc < 0)
+                log_error("failed to apply permissions on static device nodes - %s", strerror(-rc));
+
         if (arg_daemonize) {
                 pid_t pid;
 
@@ -1223,20 +1268,6 @@ int main(int argc, char *argv[]) {
                 sd_notify(1, "READY=1");
         }
 
-        log_info("starting version " VERSION "\n");
-
-        udev_builtin_init(udev);
-
-        rules = udev_rules_new(udev, arg_resolve_names);
-        if (rules == NULL) {
-                log_error("error reading rules");
-                goto exit;
-        }
-
-        rc = udev_rules_apply_static_dev_perms(rules);
-        if (rc < 0)
-                log_error("failed to apply permissions on static device nodes - %s", strerror(-rc));
-
         if (arg_children_max <= 0) {
                 cpu_set_t cpu_set;
 
@@ -1511,7 +1542,7 @@ exit_daemonize:
         udev_monitor_unref(monitor);
         udev_ctrl_connection_unref(ctrl_conn);
         udev_ctrl_unref(udev_ctrl);
-        label_finish();
+        mac_selinux_finish();
         udev_unref(udev);
         log_close();
         return rc;