src/test/test-namespace.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2013 Zbigniew Jędrzejewski-Szmek
   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 <sys/socket.h>
  23
  24 #include "namespace.h"
  25 #include "util.h"
  26 #include "process-util.h"
  27
  28 static void test_tmpdir(const char *id, const char *A, const char *B) {
  29         _cleanup_free_ char *a, *b;
  30         struct stat x, y;
  31         char *c, *d;
  32
  33         assert_se(setup_tmp_dirs(id, &a, &b) == 0);
  34         assert_se(startswith(a, A));
  35         assert_se(startswith(b, B));
  36
  37         assert_se(stat(a, &x) >= 0);
  38         assert_se(stat(b, &y) >= 0);
  39
  40         assert_se(S_ISDIR(x.st_mode));
  41         assert_se(S_ISDIR(y.st_mode));
  42
  43         assert_se((x.st_mode & 01777) == 0700);
  44         assert_se((y.st_mode & 01777) == 0700);
  45
  46         c = strjoina(a, "/tmp");
  47         d = strjoina(b, "/tmp");
  48
  49         assert_se(stat(c, &x) >= 0);
  50         assert_se(stat(d, &y) >= 0);
  51
  52         assert_se(S_ISDIR(x.st_mode));
  53         assert_se(S_ISDIR(y.st_mode));
  54
  55         assert_se((x.st_mode & 01777) == 01777);
  56         assert_se((y.st_mode & 01777) == 01777);
  57
  58         assert_se(rmdir(c) >= 0);
  59         assert_se(rmdir(d) >= 0);
  60
  61         assert_se(rmdir(a) >= 0);
  62         assert_se(rmdir(b) >= 0);
  63 }
  64
  65 static void test_netns(void) {
  66         _cleanup_close_pair_ int s[2] = { -1, -1 };
  67         pid_t pid1, pid2, pid3;
  68         int r, n = 0;
  69         siginfo_t si;
  70
  71         if (geteuid() > 0)
  72                 return;
  73
  74         assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, s) >= 0);
  75
  76         pid1 = fork();
  77         assert_se(pid1 >= 0);
  78
  79         if (pid1 == 0) {
  80                 r = setup_netns(s);
  81                 assert_se(r >= 0);
  82                 _exit(r);
  83         }
  84
  85         pid2 = fork();
  86         assert_se(pid2 >= 0);
  87
  88         if (pid2 == 0) {
  89                 r = setup_netns(s);
  90                 assert_se(r >= 0);
  91                 exit(r);
  92         }
  93
  94         pid3 = fork();
  95         assert_se(pid3 >= 0);
  96
  97         if (pid3 == 0) {
  98                 r = setup_netns(s);
  99                 assert_se(r >= 0);
 100                 exit(r);
 101         }
 102
 103         r = wait_for_terminate(pid1, &si);
 104         assert_se(r >= 0);
 105         assert_se(si.si_code == CLD_EXITED);
 106         n += si.si_status;
 107
 108         r = wait_for_terminate(pid2, &si);
 109         assert_se(r >= 0);
 110         assert_se(si.si_code == CLD_EXITED);
 111         n += si.si_status;
 112
 113         r = wait_for_terminate(pid3, &si);
 114         assert_se(r >= 0);
 115         assert_se(si.si_code == CLD_EXITED);
 116         n += si.si_status;
 117
 118         assert_se(n == 1);
 119 }
 120
 121 int main(int argc, char *argv[]) {
 122         sd_id128_t bid;
 123         char boot_id[SD_ID128_STRING_MAX];
 124         _cleanup_free_ char *x = NULL, *y = NULL, *z = NULL, *zz = NULL;
 125
 126         assert_se(sd_id128_get_boot(&bid) >= 0);
 127         sd_id128_to_string(bid, boot_id);
 128
 129         x = strjoin("/tmp/systemd-private-", boot_id, "-abcd.service-", NULL);
 130         y = strjoin("/var/tmp/systemd-private-", boot_id, "-abcd.service-", NULL);
 131         assert_se(x && y);
 132
 133         test_tmpdir("abcd.service", x, y);
 134
 135         z = strjoin("/tmp/systemd-private-", boot_id, "-sys-devices-pci0000:00-0000:00:1a.0-usb3-3\\x2d1-3\\x2d1:1.0-bluetooth-hci0.device-", NULL);
 136         zz = strjoin("/var/tmp/systemd-private-", boot_id, "-sys-devices-pci0000:00-0000:00:1a.0-usb3-3\\x2d1-3\\x2d1:1.0-bluetooth-hci0.device-", NULL);
 137
 138         assert_se(z && zz);
 139
 140         test_tmpdir("sys-devices-pci0000:00-0000:00:1a.0-usb3-3\\x2d1-3\\x2d1:1.0-bluetooth-hci0.device", z, zz);
 141
 142         test_netns();
 143
 144         return 0;
 145 }