src/test/test-selinux.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2016 Zbigniew Jędrzejewski-Szmek
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <sys/stat.h>
  21
  22 #include "alloc-util.h"
  23 #include "fd-util.h"
  24 #include "log.h"
  25 #include "selinux-util.h"
  26 #include "string-util.h"
  27 #include "time-util.h"
  28 #include "util.h"
  29
  30 static void test_testing(void) {
  31         bool b;
  32
  33         log_info("============ %s ==========", __func__);
  34
  35         b = mac_selinux_use();
  36         log_info("mac_selinux_use → %s", yes_no(b));
  37
  38         b = mac_selinux_use();
  39         log_info("mac_selinux_use → %s", yes_no(b));
  40
  41         mac_selinux_retest();
  42
  43         b = mac_selinux_use();
  44         log_info("mac_selinux_use → %s", yes_no(b));
  45
  46         b = mac_selinux_use();
  47         log_info("mac_selinux_use → %s", yes_no(b));
  48 }
  49
  50 static void test_loading(void) {
  51         usec_t n1, n2;
  52         int r;
  53
  54         log_info("============ %s ==========", __func__);
  55
  56         n1 = now(CLOCK_MONOTONIC);
  57         r = mac_selinux_init();
  58         n2 = now(CLOCK_MONOTONIC);
  59         log_info_errno(r, "mac_selinux_init → %d %.2fs (%m)", r, (n2 - n1)/1e6);
  60 }
  61
  62 static void test_cleanup(void) {
  63         usec_t n1, n2;
  64
  65         log_info("============ %s ==========", __func__);
  66
  67         n1 = now(CLOCK_MONOTONIC);
  68         mac_selinux_finish();
  69         n2 = now(CLOCK_MONOTONIC);
  70         log_info("mac_selinux_finish → %.2fs", (n2 - n1)/1e6);
  71 }
  72
  73 static void test_misc(const char* fname) {
  74         _cleanup_(mac_selinux_freep) char *label = NULL, *label2 = NULL, *label3 = NULL;
  75         int r;
  76         _cleanup_close_ int fd = -1;
  77
  78         log_info("============ %s ==========", __func__);
  79
  80         r = mac_selinux_get_our_label(&label);
  81         log_info_errno(r, "mac_selinux_get_our_label → %d, \"%s\" (%m)",
  82                        r, strnull(label));
  83
  84         r = mac_selinux_get_create_label_from_exe(fname, &label2);
  85         log_info_errno(r, "mac_selinux_create_label_from_exe → %d, \"%s\" (%m)",
  86                        r, strnull(label2));
  87
  88         fd = socket(AF_INET, SOCK_DGRAM, 0);
  89         assert_se(fd >= 0);
  90
  91         r = mac_selinux_get_child_mls_label(fd, fname, label2, &label3);
  92         log_info_errno(r, "mac_selinux_get_child_mls_label → %d, \"%s\" (%m)",
  93                        r, strnull(label3));
  94 }
  95
  96 static void test_create_file_prepare(const char* fname) {
  97         int r;
  98
  99         log_info("============ %s ==========", __func__);
 100
 101         r = mac_selinux_create_file_prepare(fname, S_IRWXU);
 102         log_info_errno(r, "mac_selinux_create_file_prepare → %d (%m)", r);
 103
 104         mac_selinux_create_file_clear();
 105 }
 106
 107 int main(int argc, char **argv) {
 108         const char *path = SYSTEMD_BINARY_PATH;
 109         if (argc >= 2)
 110                 path = argv[1];
 111
 112         log_set_max_level(LOG_DEBUG);
 113         log_parse_environment();
 114
 115         test_testing();
 116         test_loading();
 117         test_misc(path);
 118         test_create_file_prepare(path);
 119         test_cleanup();
 120
 121         return 0;
 122 }