src/test/test-ns.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24
  25 #include "log.h"
  26 #include "namespace.h"
  27
  28 int main(int argc, char *argv[]) {
  29         const char * const writable[] = {
  30                 "/home",
  31                 NULL
  32         };
  33
  34         const char * const readonly[] = {
  35                 "/",
  36                 "/usr",
  37                 "/boot",
  38                 NULL
  39         };
  40
  41         const char *inaccessible[] = {
  42                 "/home/lennart/projects",
  43                 NULL
  44         };
  45         char *root_directory;
  46         char *projects_directory;
  47
  48         int r;
  49         char tmp_dir[] = "/tmp/systemd-private-XXXXXX",
  50              var_tmp_dir[] = "/var/tmp/systemd-private-XXXXXX";
  51
  52         assert_se(mkdtemp(tmp_dir));
  53         assert_se(mkdtemp(var_tmp_dir));
  54
  55         root_directory = getenv("TEST_NS_CHROOT");
  56         projects_directory = getenv("TEST_NS_PROJECTS");
  57
  58         if (projects_directory)
  59                 inaccessible[0] = projects_directory;
  60
  61         log_info("Inaccessible directory: '%s'", inaccessible[0]);
  62         if (root_directory)
  63                 log_info("Chroot: '%s'", root_directory);
  64         else
  65                 log_info("Not chrooted");
  66
  67         r = setup_namespace(root_directory,
  68                             (char **) writable,
  69                             (char **) readonly,
  70                             (char **) inaccessible,
  71                             tmp_dir,
  72                             var_tmp_dir,
  73                             NULL,
  74                             true,
  75                             PROTECT_HOME_NO,
  76                             PROTECT_SYSTEM_NO,
  77                             0);
  78         if (r < 0) {
  79                 log_error_errno(r, "Failed to setup namespace: %m");
  80
  81                 log_info("Usage:\n"
  82                          "  sudo TEST_NS_PROJECTS=/home/lennart/projects ./test-ns\n"
  83                          "  sudo TEST_NS_CHROOT=/home/alban/debian-tree TEST_NS_PROJECTS=/home/alban/debian-tree/home/alban/Documents ./test-ns");
  84
  85                 return 1;
  86         }
  87
  88         execl("/bin/sh", "/bin/sh", NULL);
  89         log_error_errno(errno, "execl(): %m");
  90
  91         return 1;
  92 }