test-fileio: use random name for written file

[elogind.git] / src / test / test-udev.c

diff --git a/src/test/test-udev.c b/src/test/test-udev.c
index b843e5f6481e7464f59ba4e364ce5da3f5b1df57..52b61b42061c73c79d5dddb3eb5007aeb402185a 100644 (file)
--- a/src/test/test-udev.c
+++ b/src/test/test-udev.c
@@ -1,20 +1,22 @@
-/*
- * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (C) 2004-2008 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/>.
- */
+/***
+  This file is part of systemd.
+
+  Copyright 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
+  Copyright 2004-2012 Kay Sievers <kay@vrfy.org>
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
 
 #include <stdio.h>
 #include <stddef.h>
@@ -26,14 +28,58 @@
 #include <unistd.h>
 #include <syslog.h>
 #include <grp.h>
+#include <sched.h>
+#include <sys/mount.h>
 #include <sys/signalfd.h>
 
+#include "missing.h"
 #include "udev.h"
 
 void udev_main_log(struct udev *udev, int priority,
                    const char *file, int line, const char *fn,
                    const char *format, va_list args) {}
 
+static int fake_filesystems(void) {
+        static const struct fakefs {
+                const char *src;
+                const char *target;
+                const char *error;
+        } fakefss[] = {
+                { "test/sys", "/sys",                   "failed to mount test /sys" },
+                { "test/dev", "/dev",                   "failed to mount test /dev" },
+                { "test/run", "/run",                   "failed to mount test /run" },
+                { "test/run", "/etc/udev/rules.d",      "failed to mount empty /etc/udev/rules.d" },
+                { "test/run", "/usr/lib/udev/rules.d",  "failed to mount empty /usr/lib/udev/rules.d" },
+        };
+        unsigned int i;
+        int err;
+
+        err = unshare(CLONE_NEWNS);
+        if (err < 0) {
+                err = -errno;
+                fprintf(stderr, "failed to call unshare(): %m\n");
+                goto out;
+        }
+
+        if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) < 0) {
+                err = -errno;
+                fprintf(stderr, "failed to mount / as private: %m\n");
+                goto out;
+        }
+
+        for (i = 0; i < ELEMENTSOF(fakefss); i++) {
+                err = mount(fakefss[i].src, fakefss[i].target, NULL, MS_BIND, NULL);
+                if (err < 0) {
+                        err = -errno;
+                        fprintf(stderr, "%s %m", fakefss[i].error);
+                        return err;
+                }
+        }
+out:
+        return err;
+}
+
+
 int main(int argc, char *argv[])
 {
         struct udev *udev;
@@ -44,13 +90,17 @@ int main(int argc, char *argv[])
         const char *devpath;
         const char *action;
         sigset_t mask, sigmask_orig;
-        int err = -EINVAL;
+        int err;
+
+        err = fake_filesystems();
+        if (err < 0)
+                return EXIT_FAILURE;
 
         udev = udev_new();
         if (udev == NULL)
                 exit(EXIT_FAILURE);
         log_debug("version %s\n", VERSION);
-        udev_selinux_init(udev);
+        label_init("/dev");
 
         sigprocmask(SIG_SETMASK, NULL, &sigmask_orig);
 
@@ -68,7 +118,7 @@ int main(int argc, char *argv[])
 
         rules = udev_rules_new(udev, 1);
 
-        util_strscpyl(syspath, sizeof(syspath), TEST_PREFIX "/sys", devpath, NULL);
+        strscpyl(syspath, sizeof(syspath), "/sys", devpath, NULL);
         dev = udev_device_new_from_syspath(udev, syspath);
         if (dev == NULL) {
                 log_debug("unknown device '%s'\n", devpath);
@@ -90,13 +140,13 @@ int main(int argc, char *argv[])
         if (udev_device_get_devnode(dev) != NULL) {
                 mode_t mode = 0600;
 
-                if (strcmp(udev_device_get_subsystem(dev), "block") == 0)
+                if (streq(udev_device_get_subsystem(dev), "block"))
                         mode |= S_IFBLK;
                 else
                         mode |= S_IFCHR;
 
-                if (strcmp(action, "remove") != 0) {
-                        util_create_path(udev, udev_device_get_devnode(dev));
+                if (!streq(action, "remove")) {
+                        mkdir_parents_label(udev_device_get_devnode(dev), 0755);
                         mknod(udev_device_get_devnode(dev), mode, udev_device_get_devnum(dev));
                 } else {
                         unlink(udev_device_get_devnode(dev));
@@ -113,7 +163,7 @@ out:
         udev_event_unref(event);
         udev_device_unref(dev);
         udev_rules_unref(rules);
-        udev_selinux_exit(udev);
+        label_finish();
         udev_unref(udev);
         if (err != 0)
                 return EXIT_FAILURE;