execute: support basic filesystem namespacing

[elogind.git] / test-ns.c

diff --git a/test-ns.c b/test-ns.c
new file mode 100644 (file)
index 0000000..baf42f6
--- /dev/null
+++ b/test-ns.c
@@ -0,0 +1,57 @@
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd 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.
+
+  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
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mount.h>
+
+#include "namespace.h"
+#include "log.h"
+
+int main(int argc, char *argv[]) {
+        const char * const writable[] = {
+                "/home",
+                NULL
+        };
+
+        const char * const readable[] = {
+                "/var",
+                NULL
+        };
+
+        const char * const inaccessible[] = {
+                "/home/lennart/projects",
+                NULL
+        };
+
+        int r;
+
+        if ((r = setup_namespace((char**) writable, (char**) readable, (char**) inaccessible, true, MS_SHARED)) < 0) {
+                log_error("Failed to setup namespace: %s", strerror(-r));
+                return 1;
+        }
+
+        execl("/bin/sh", "/bin/sh", NULL);
+        log_error("execl(): %m");
+
+        return 1;
+}