src/test/test-path.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2014 Ronny Chevalier
   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 <stdio.h>
  21 #include <stdbool.h>
  22
  23 #include "unit.h"
  24 #include "manager.h"
  25 #include "util.h"
  26 #include "macro.h"
  27 #include "strv.h"
  28 #include "mkdir.h"
  29
  30 typedef void (*test_function_t)(Manager *m);
  31
  32 static int setup_test(Manager **m) {
  33         char **tests_path = STRV_MAKE("exists", "existsglobFOOBAR", "changed", "modified", "unit",
  34                                       "directorynotempty", "makedirectory");
  35         char **test_path;
  36         Manager *tmp;
  37         int r;
  38
  39         assert_se(m);
  40
  41         r = manager_new(SYSTEMD_USER, true, &tmp);
  42         if (IN_SET(r, -EPERM, -EACCES, -EADDRINUSE, -EHOSTDOWN, -ENOENT)) {
  43                 printf("Skipping test: manager_new: %s", strerror(-r));
  44                 return -EXIT_TEST_SKIP;
  45         }
  46         assert_se(r >= 0);
  47         assert_se(manager_startup(tmp, NULL, NULL) >= 0);
  48
  49         STRV_FOREACH(test_path, tests_path) {
  50                rm_rf_dangerous(strappenda("/tmp/test-path_", *test_path), false, true, false);
  51         }
  52
  53         *m = tmp;
  54
  55         return 0;
  56 }
  57
  58 static void shutdown_test(Manager *m) {
  59         assert_se(m);
  60
  61         manager_free(m);
  62 }
  63
  64 static void check_stop_unlink(Manager *m, Unit *unit, const char *test_path, const char *service_name) {
  65         _cleanup_free_ char *tmp = NULL;
  66         Unit *service_unit = NULL;
  67         Service *service = NULL;
  68         usec_t ts;
  69         usec_t timeout = 2 * USEC_PER_SEC;
  70
  71         assert_se(m);
  72         assert_se(unit);
  73         assert_se(test_path);
  74
  75         if (!service_name) {
  76                 assert_se(tmp = strreplace(unit->id, ".path", ".service"));
  77                 service_unit = manager_get_unit(m, tmp);
  78         } else
  79                 service_unit = manager_get_unit(m, service_name);
  80         assert_se(service_unit);
  81         service = SERVICE(service_unit);
  82
  83         ts = now(CLOCK_MONOTONIC);
  84         /* We process events until the service related to the path has been successfully started */
  85         while(service->result != SERVICE_SUCCESS || service->state != SERVICE_START) {
  86                 usec_t n;
  87                 int r;
  88
  89                 r = sd_event_run(m->event, 100 * USEC_PER_MSEC);
  90                 assert_se(r >= 0);
  91
  92                 printf("%s: state = %s; result = %s \n",
  93                                 service_unit->id,
  94                                 service_state_to_string(service->state),
  95                                 service_result_to_string(service->result));
  96
  97
  98                 /* But we timeout if the service has not been started in the allocated time */
  99                 n = now(CLOCK_MONOTONIC);
 100                 if (ts + timeout < n) {
 101                         log_error("Test timeout when testing %s", unit->id);
 102                         exit(EXIT_FAILURE);
 103                 }
 104         }
 105
 106         assert_se(UNIT_VTABLE(unit)->stop(unit) >= 0);
 107         rm_rf_dangerous(test_path, false, true, false);
 108 }
 109
 110 static void test_path_exists(Manager *m) {
 111         const char *test_path = "/tmp/test-path_exists";
 112         Unit *unit = NULL;
 113
 114         assert_se(m);
 115
 116         assert_se(manager_load_unit(m, "path-exists.path", NULL, NULL, &unit) >= 0);
 117         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 118
 119         assert_se(touch(test_path) >= 0);
 120
 121         check_stop_unlink(m, unit, test_path, NULL);
 122 }
 123
 124 static void test_path_existsglob(Manager *m) {
 125         const char *test_path = "/tmp/test-path_existsglobFOOBAR";
 126         Unit *unit = NULL;
 127
 128         assert_se(m);
 129         assert_se(manager_load_unit(m, "path-existsglob.path", NULL, NULL, &unit) >= 0);
 130         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 131
 132         assert_se(touch(test_path) >= 0);
 133
 134         check_stop_unlink(m, unit, test_path, NULL);
 135 }
 136
 137 static void test_path_changed(Manager *m) {
 138         const char *test_path = "/tmp/test-path_changed";
 139         FILE *f;
 140         Unit *unit = NULL;
 141
 142         assert_se(m);
 143
 144         assert_se(touch(test_path) >= 0);
 145
 146         assert_se(manager_load_unit(m, "path-changed.path", NULL, NULL, &unit) >= 0);
 147         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 148
 149         f = fopen(test_path, "w");
 150         assert_se(f);
 151         fclose(f);
 152
 153         check_stop_unlink(m, unit, test_path, NULL);
 154 }
 155
 156 static void test_path_modified(Manager *m) {
 157         _cleanup_fclose_ FILE *f = NULL;
 158         const char *test_path = "/tmp/test-path_modified";
 159         Unit *unit = NULL;
 160
 161         assert_se(m);
 162
 163         assert_se(touch(test_path) >= 0);
 164
 165         assert_se(manager_load_unit(m, "path-modified.path", NULL, NULL, &unit) >= 0);
 166         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 167
 168         f = fopen(test_path, "w");
 169         assert_se(f);
 170         fputs("test", f);
 171
 172         check_stop_unlink(m, unit, test_path, NULL);
 173 }
 174
 175 static void test_path_unit(Manager *m) {
 176         const char *test_path = "/tmp/test-path_unit";
 177         Unit *unit = NULL;
 178
 179         assert_se(m);
 180
 181         assert_se(manager_load_unit(m, "path-unit.path", NULL, NULL, &unit) >= 0);
 182         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 183
 184         assert_se(touch(test_path) >= 0);
 185
 186         check_stop_unlink(m, unit, test_path, "path-mycustomunit.service");
 187 }
 188
 189 static void test_path_directorynotempty(Manager *m) {
 190         const char *test_path = "/tmp/test-path_directorynotempty/";
 191         Unit *unit = NULL;
 192
 193         assert_se(m);
 194
 195         assert_se(access(test_path, F_OK) < 0);
 196
 197         assert_se(manager_load_unit(m, "path-directorynotempty.path", NULL, NULL, &unit) >= 0);
 198         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 199
 200         /* MakeDirectory default to no */
 201         assert_se(access(test_path, F_OK) < 0);
 202
 203         assert_se(mkdir_p(test_path, 0755) >= 0);
 204         assert_se(touch(strappenda(test_path, "test_file")) >= 0);
 205
 206         check_stop_unlink(m, unit, test_path, NULL);
 207 }
 208
 209 static void test_path_makedirectory_directorymode(Manager *m) {
 210         const char *test_path = "/tmp/test-path_makedirectory/";
 211         Unit *unit = NULL;
 212         struct stat s;
 213
 214         assert_se(m);
 215
 216         assert_se(access(test_path, F_OK) < 0);
 217
 218         assert_se(manager_load_unit(m, "path-makedirectory.path", NULL, NULL, &unit) >= 0);
 219         assert_se(UNIT_VTABLE(unit)->start(unit) >= 0);
 220
 221         /* Check if the directory has been created */
 222         assert_se(access(test_path, F_OK) >= 0);
 223
 224         /* Check the mode we specified with DirectoryMode=0744 */
 225         assert_se(stat(test_path, &s) >= 0);
 226         assert_se((s.st_mode & S_IRWXU) == 0700);
 227         assert_se((s.st_mode & S_IRWXG) == 0040);
 228         assert_se((s.st_mode & S_IRWXO) == 0004);
 229
 230         assert_se(UNIT_VTABLE(unit)->stop(unit) >= 0);
 231         rm_rf_dangerous(test_path, false, true, false);
 232 }
 233
 234 int main(int argc, char *argv[]) {
 235         test_function_t tests[] = {
 236                 test_path_exists,
 237                 test_path_existsglob,
 238                 test_path_changed,
 239                 test_path_modified,
 240                 test_path_unit,
 241                 test_path_directorynotempty,
 242                 test_path_makedirectory_directorymode,
 243                 NULL,
 244         };
 245         test_function_t *test = NULL;
 246         Manager *m = NULL;
 247
 248         log_parse_environment();
 249         log_open();
 250
 251         /* It is needed otherwise cgroup creation fails */
 252         if (getuid() != 0)
 253                 return EXIT_TEST_SKIP;
 254
 255         assert_se(set_unit_path(TEST_DIR ":") >= 0);
 256
 257         for (test = tests; test && *test; test++) {
 258                 int r;
 259
 260                 /* We create a clean environment for each test */
 261                 r = setup_test(&m);
 262                 if (r < 0)
 263                         return -r;
 264
 265                 (*test)(m);
 266
 267                 shutdown_test(m);
 268         }
 269
 270         return 0;
 271 }