src/test/test-namespace.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <sys/socket.h>
   4 #include <sys/stat.h>
   5
   6 #include "alloc-util.h"
   7 #include "fd-util.h"
   8 #include "namespace.h"
   9 #include "process-util.h"
  10 #include "string-util.h"
  11 #include "tests.h"
  12 #include "util.h"
  13
  14 static void test_tmpdir(const char *id, const char *A, const char *B) {
  15         _cleanup_free_ char *a, *b;
  16         struct stat x, y;
  17         char *c, *d;
  18
  19         assert_se(setup_tmp_dirs(id, &a, &b) == 0);
  20         assert_se(startswith(a, A));
  21         assert_se(startswith(b, B));
  22
  23         assert_se(stat(a, &x) >= 0);
  24         assert_se(stat(b, &y) >= 0);
  25
  26         assert_se(S_ISDIR(x.st_mode));
  27         assert_se(S_ISDIR(y.st_mode));
  28
  29         assert_se((x.st_mode & 01777) == 0700);
  30         assert_se((y.st_mode & 01777) == 0700);
  31
  32         c = strjoina(a, "/tmp");
  33         d = strjoina(b, "/tmp");
  34
  35         assert_se(stat(c, &x) >= 0);
  36         assert_se(stat(d, &y) >= 0);
  37
  38         assert_se(S_ISDIR(x.st_mode));
  39         assert_se(S_ISDIR(y.st_mode));
  40
  41         assert_se((x.st_mode & 01777) == 01777);
  42         assert_se((y.st_mode & 01777) == 01777);
  43
  44         assert_se(rmdir(c) >= 0);
  45         assert_se(rmdir(d) >= 0);
  46
  47         assert_se(rmdir(a) >= 0);
  48         assert_se(rmdir(b) >= 0);
  49 }
  50
  51 static int test_netns(void) {
  52         _cleanup_close_pair_ int s[2] = { -1, -1 };
  53         pid_t pid1, pid2, pid3;
  54         int r, n = 0;
  55         siginfo_t si;
  56
  57         if (geteuid() > 0)
  58                 return log_tests_skipped("not root");
  59
  60         assert_se(socketpair(AF_UNIX, SOCK_DGRAM, 0, s) >= 0);
  61
  62         pid1 = fork();
  63         assert_se(pid1 >= 0);
  64
  65         if (pid1 == 0) {
  66                 r = setup_netns(s);
  67                 assert_se(r >= 0);
  68                 _exit(r);
  69         }
  70
  71         pid2 = fork();
  72         assert_se(pid2 >= 0);
  73
  74         if (pid2 == 0) {
  75                 r = setup_netns(s);
  76                 assert_se(r >= 0);
  77                 exit(r);
  78         }
  79
  80         pid3 = fork();
  81         assert_se(pid3 >= 0);
  82
  83         if (pid3 == 0) {
  84                 r = setup_netns(s);
  85                 assert_se(r >= 0);
  86                 exit(r);
  87         }
  88
  89         r = wait_for_terminate(pid1, &si);
  90         assert_se(r >= 0);
  91         assert_se(si.si_code == CLD_EXITED);
  92         n += si.si_status;
  93
  94         r = wait_for_terminate(pid2, &si);
  95         assert_se(r >= 0);
  96         assert_se(si.si_code == CLD_EXITED);
  97         n += si.si_status;
  98
  99         r = wait_for_terminate(pid3, &si);
 100         assert_se(r >= 0);
 101         assert_se(si.si_code == CLD_EXITED);
 102         n += si.si_status;
 103
 104         assert_se(n == 1);
 105         return EXIT_SUCCESS;
 106 }
 107
 108 int main(int argc, char *argv[]) {
 109         sd_id128_t bid;
 110         char boot_id[SD_ID128_STRING_MAX];
 111         _cleanup_free_ char *x = NULL, *y = NULL, *z = NULL, *zz = NULL;
 112
 113         test_setup_logging(LOG_INFO);
 114
 115         if (!have_namespaces()) {
 116                 log_tests_skipped("Don't have namespace support");
 117                 return EXIT_TEST_SKIP;
 118         }
 119
 120         assert_se(sd_id128_get_boot(&bid) >= 0);
 121         sd_id128_to_string(bid, boot_id);
 122
 123         x = strjoin("/tmp/systemd-private-", boot_id, "-abcd.service-");
 124         y = strjoin("/var/tmp/systemd-private-", boot_id, "-abcd.service-");
 125         assert_se(x && y);
 126
 127         test_tmpdir("abcd.service", x, y);
 128
 129         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-");
 130         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-");
 131
 132         assert_se(z && zz);
 133
 134         test_tmpdir("sys-devices-pci0000:00-0000:00:1a.0-usb3-3\\x2d1-3\\x2d1:1.0-bluetooth-hci0.device", z, zz);
 135
 136         return test_netns();
 137 }