src/test/test-selinux.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2016 Zbigniew Jędrzejewski-Szmek
   6
   7   systemd is free software; you can redistribute it and/or modify it
   8   under the terms of the GNU Lesser General Public License as published by
   9   the Free Software Foundation; either version 2.1 of the License, or
  10   (at your option) any later version.
  11
  12   systemd is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   Lesser General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  19 ***/
  20
  21 #include <sys/stat.h>
  22
  23 #include "alloc-util.h"
  24 #include "fd-util.h"
  25 #include "log.h"
  26 #include "selinux-util.h"
  27 #include "string-util.h"
  28 #include "time-util.h"
  29 #include "util.h"
  30
  31 static void test_testing(void) {
  32         bool b;
  33
  34         log_info("============ %s ==========", __func__);
  35
  36         b = mac_selinux_use();
  37         log_info("mac_selinux_use → %s", yes_no(b));
  38
  39         b = mac_selinux_use();
  40         log_info("mac_selinux_use → %s", yes_no(b));
  41
  42         mac_selinux_retest();
  43
  44         b = mac_selinux_use();
  45         log_info("mac_selinux_use → %s", yes_no(b));
  46
  47         b = mac_selinux_use();
  48         log_info("mac_selinux_use → %s", yes_no(b));
  49 }
  50
  51 static void test_loading(void) {
  52         usec_t n1, n2;
  53         int r;
  54
  55         log_info("============ %s ==========", __func__);
  56
  57         n1 = now(CLOCK_MONOTONIC);
  58         r = mac_selinux_init();
  59         n2 = now(CLOCK_MONOTONIC);
  60         log_info_errno(r, "mac_selinux_init → %d %.2fs (%m)", r, (n2 - n1)/1e6);
  61 }
  62
  63 static void test_cleanup(void) {
  64         usec_t n1, n2;
  65
  66         log_info("============ %s ==========", __func__);
  67
  68         n1 = now(CLOCK_MONOTONIC);
  69         mac_selinux_finish();
  70         n2 = now(CLOCK_MONOTONIC);
  71         log_info("mac_selinux_finish → %.2fs", (n2 - n1)/1e6);
  72 }
  73
  74 static void test_misc(const char* fname) {
  75         _cleanup_(mac_selinux_freep) char *label = NULL, *label2 = NULL, *label3 = NULL;
  76         int r;
  77         _cleanup_close_ int fd = -1;
  78
  79         log_info("============ %s ==========", __func__);
  80
  81         r = mac_selinux_get_our_label(&label);
  82         log_info_errno(r, "mac_selinux_get_our_label → %d, \"%s\" (%m)",
  83                        r, strnull(label));
  84
  85         r = mac_selinux_get_create_label_from_exe(fname, &label2);
  86         log_info_errno(r, "mac_selinux_create_label_from_exe → %d, \"%s\" (%m)",
  87                        r, strnull(label2));
  88
  89         fd = socket(AF_INET, SOCK_DGRAM, 0);
  90         assert_se(fd >= 0);
  91
  92         r = mac_selinux_get_child_mls_label(fd, fname, label2, &label3);
  93         log_info_errno(r, "mac_selinux_get_child_mls_label → %d, \"%s\" (%m)",
  94                        r, strnull(label3));
  95 }
  96
  97 static void test_create_file_prepare(const char* fname) {
  98         int r;
  99
 100         log_info("============ %s ==========", __func__);
 101
 102         r = mac_selinux_create_file_prepare(fname, S_IRWXU);
 103         log_info_errno(r, "mac_selinux_create_file_prepare → %d (%m)", r);
 104
 105         mac_selinux_create_file_clear();
 106 }
 107
 108 int main(int argc, char **argv) {
 109         const char *path = SYSTEMD_BINARY_PATH;
 110         if (argc >= 2)
 111                 path = argv[1];
 112
 113         log_set_max_level(LOG_DEBUG);
 114         log_parse_environment();
 115
 116         test_testing();
 117         test_loading();
 118         test_misc(path);
 119         test_create_file_prepare(path);
 120         test_cleanup();
 121
 122         return 0;
 123 }