src/libsystemd/sd-login/test-login.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <poll.h>
   4
   5 #include "sd-login.h"
   6
   7 #include "alloc-util.h"
   8 #include "errno-list.h"
   9 #include "fd-util.h"
  10 #include "format-util.h"
  11 #include "log.h"
  12 #include "missing_syscall.h"
  13 #include "process-util.h"
  14 #include "string-util.h"
  15 #include "strv.h"
  16 #include "tests.h"
  17 #include "time-util.h"
  18 #include "user-util.h"
  19
  20 static char* format_uids(char **buf, uid_t* uids, int count) {
  21         int pos = 0, inc;
  22         size_t size = (DECIMAL_STR_MAX(uid_t) + 1) * count + 1;
  23
  24         assert_se(*buf = malloc(size));
  25
  26         for (int k = 0; k < count; k++) {
  27                 sprintf(*buf + pos, "%s"UID_FMT"%n", k > 0 ? " " : "", uids[k], &inc);
  28                 pos += inc;
  29         }
  30
  31         assert_se(pos < (ssize_t)size);
  32         (*buf)[pos] = '\0';
  33
  34         return *buf;
  35 }
  36
  37 static const char *e(int r) {
  38         return r == 0 ? "OK" : errno_to_name(r);
  39 }
  40
  41 TEST(login) {
  42         _cleanup_close_pair_ int pair[2] = EBADF_PAIR;
  43         _cleanup_free_ char *pp = NULL, *qq = NULL,
  44                 *display_session = NULL, *cgroup = NULL,
  45                 *display = NULL, *remote_user = NULL, *remote_host = NULL,
  46                 *type = NULL, *class = NULL, *state = NULL, *state2 = NULL,
  47                 *seat = NULL, *session = NULL,
  48                 *unit = NULL, *user_unit = NULL, *slice = NULL;
  49         _cleanup_close_ int pidfd = -EBADF;
  50         int r;
  51         uid_t u, u2 = UID_INVALID;
  52         char *t, **seats = NULL, **sessions = NULL;
  53
  54         r = sd_pid_get_unit(0, &unit);
  55         log_info("sd_pid_get_unit(0, …) → %s / \"%s\"", e(r), strnull(unit));
  56         assert_se(IN_SET(r, 0, -ENODATA));
  57
  58         r = sd_pid_get_user_unit(0, &user_unit);
  59         log_info("sd_pid_get_user_unit(0, …) → %s / \"%s\"", e(r), strnull(user_unit));
  60         assert_se(IN_SET(r, 0, -ENODATA));
  61
  62         r = sd_pid_get_slice(0, &slice);
  63         log_info("sd_pid_get_slice(0, …) → %s / \"%s\"", e(r), strnull(slice));
  64         assert_se(IN_SET(r, 0, -ENODATA));
  65
  66         r = sd_pid_get_owner_uid(0, &u2);
  67         log_info("sd_pid_get_owner_uid(0, …) → %s / "UID_FMT, e(r), u2);
  68         assert_se(IN_SET(r, 0, -ENODATA));
  69
  70         r = sd_pid_get_session(0, &session);
  71         log_info("sd_pid_get_session(0, …) → %s / \"%s\"", e(r), strnull(session));
  72
  73         r = sd_pid_get_cgroup(0, &cgroup);
  74         log_info("sd_pid_get_cgroup(0, …) → %s / \"%s\"", e(r), strnull(cgroup));
  75         assert_se(IN_SET(r, 0, -ENOMEDIUM));
  76
  77         pidfd = pidfd_open(getpid_cached(), 0);
  78         if (pidfd >= 0) {
  79                 _cleanup_free_ char *cgroup2 = NULL, *session2 = NULL,
  80                         *unit2 = NULL, *user_unit2 = NULL, *slice2 = NULL;
  81
  82                 r = sd_pidfd_get_unit(pidfd, &unit2);
  83                 log_info("sd_pidfd_get_unit(pidfd, …) → %s / \"%s\"", e(r), strnull(unit2));
  84                 assert_se(IN_SET(r, 0, -ENODATA));
  85
  86                 r = sd_pidfd_get_user_unit(pidfd, &user_unit2);
  87                 log_info("sd_pidfd_get_user_unit(pidfd, …) → %s / \"%s\"", e(r), strnull(user_unit2));
  88                 assert_se(IN_SET(r, 0, -ENODATA));
  89
  90                 r = sd_pidfd_get_slice(pidfd, &slice2);
  91                 log_info("sd_pidfd_get_slice(pidfd, …) → %s / \"%s\"", e(r), strnull(slice2));
  92                 assert_se(IN_SET(r, 0, -ENODATA));
  93
  94                 r = sd_pidfd_get_owner_uid(pidfd, &u2);
  95                 log_info("sd_pidfd_get_owner_uid(pidfd, …) → %s / "UID_FMT, e(r), u2);
  96                 assert_se(IN_SET(r, 0, -ENODATA));
  97
  98                 r = sd_pidfd_get_session(pidfd, &session2);
  99                 log_info("sd_pidfd_get_session(pidfd, …) → %s / \"%s\"", e(r), strnull(session2));
 100
 101                 r = sd_pidfd_get_cgroup(pidfd, &cgroup2);
 102                 log_info("sd_pidfd_get_cgroup(pidfd, …) → %s / \"%s\"", e(r), strnull(cgroup2));
 103                 assert_se(IN_SET(r, 0, -ENOMEDIUM));
 104         }
 105
 106         r = sd_uid_get_display(u2, &display_session);
 107         log_info("sd_uid_get_display("UID_FMT", …) → %s / \"%s\"", u2, e(r), strnull(display_session));
 108         if (u2 == UID_INVALID)
 109                 assert_se(r == -EINVAL);
 110         else
 111                 assert_se(IN_SET(r, 0, -ENODATA));
 112
 113         assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == 0);
 114         sd_peer_get_session(pair[0], &pp);
 115         sd_peer_get_session(pair[1], &qq);
 116         assert_se(streq_ptr(pp, qq));
 117
 118         r = sd_uid_get_sessions(u2, false, &sessions);
 119         assert_se(t = strv_join(sessions, " "));
 120         log_info("sd_uid_get_sessions("UID_FMT", …) → %s \"%s\"", u2, e(r), t);
 121         if (u2 == UID_INVALID)
 122                 assert_se(r == -EINVAL);
 123         else {
 124                 assert_se(r >= 0);
 125                 assert_se(r == (int) strv_length(sessions));
 126         }
 127         sessions = strv_free(sessions);
 128         free(t);
 129
 130         assert_se(r == sd_uid_get_sessions(u2, false, NULL));
 131
 132         r = sd_uid_get_seats(u2, false, &seats);
 133         assert_se(t = strv_join(seats, " "));
 134         log_info("sd_uid_get_seats("UID_FMT", …) → %s \"%s\"", u2, e(r), t);
 135         if (u2 == UID_INVALID)
 136                 assert_se(r == -EINVAL);
 137         else {
 138                 assert_se(r >= 0);
 139                 assert_se(r == (int) strv_length(seats));
 140         }
 141         seats = strv_free(seats);
 142         free(t);
 143
 144         assert_se(r == sd_uid_get_seats(u2, false, NULL));
 145
 146         if (session) {
 147                 r = sd_session_is_active(session);
 148                 if (r == -ENXIO)
 149                         log_notice("sd_session_is_active() failed with ENXIO, it seems logind is not running.");
 150                 else {
 151                         /* All those tests will fail with ENXIO, so let's skip them. */
 152
 153                         assert_se(r >= 0);
 154                         log_info("sd_session_is_active(\"%s\") → %s", session, yes_no(r));
 155
 156                         r = sd_session_is_remote(session);
 157                         assert_se(r >= 0);
 158                         log_info("sd_session_is_remote(\"%s\") → %s", session, yes_no(r));
 159
 160                         r = sd_session_get_state(session, &state);
 161                         assert_se(r == 0);
 162                         log_info("sd_session_get_state(\"%s\") → \"%s\"", session, state);
 163
 164                         assert_se(sd_session_get_uid(session, &u) >= 0);
 165                         log_info("sd_session_get_uid(\"%s\") → "UID_FMT, session, u);
 166                         assert_se(u == u2);
 167
 168                         assert_se(sd_session_get_type(session, &type) >= 0);
 169                         log_info("sd_session_get_type(\"%s\") → \"%s\"", session, type);
 170
 171                         assert_se(sd_session_get_class(session, &class) >= 0);
 172                         log_info("sd_session_get_class(\"%s\") → \"%s\"", session, class);
 173
 174                         r = sd_session_get_display(session, &display);
 175                         assert_se(IN_SET(r, 0, -ENODATA));
 176                         log_info("sd_session_get_display(\"%s\") → \"%s\"", session, strna(display));
 177
 178                         r = sd_session_get_remote_user(session, &remote_user);
 179                         assert_se(IN_SET(r, 0, -ENODATA));
 180                         log_info("sd_session_get_remote_user(\"%s\") → \"%s\"",
 181                                  session, strna(remote_user));
 182
 183                         r = sd_session_get_remote_host(session, &remote_host);
 184                         assert_se(IN_SET(r, 0, -ENODATA));
 185                         log_info("sd_session_get_remote_host(\"%s\") → \"%s\"",
 186                                  session, strna(remote_host));
 187
 188                         r = sd_session_get_seat(session, &seat);
 189                         if (r >= 0) {
 190                                 assert_se(seat);
 191
 192                                 log_info("sd_session_get_seat(\"%s\") → \"%s\"", session, seat);
 193
 194 #pragma GCC diagnostic push
 195 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 196                                 r = sd_seat_can_multi_session(seat);
 197 #pragma GCC diagnostic pop
 198                                 assert_se(r == 1);
 199                                 log_info("sd_session_can_multi_seat(\"%s\") → %s", seat, yes_no(r));
 200
 201                                 r = sd_seat_can_tty(seat);
 202                                 assert_se(r >= 0);
 203                                 log_info("sd_session_can_tty(\"%s\") → %s", seat, yes_no(r));
 204
 205                                 r = sd_seat_can_graphical(seat);
 206                                 assert_se(r >= 0);
 207                                 log_info("sd_session_can_graphical(\"%s\") → %s", seat, yes_no(r));
 208                         } else {
 209                                 log_info_errno(r, "sd_session_get_seat(\"%s\"): %m", session);
 210                                 assert_se(r == -ENODATA);
 211                         }
 212
 213                         assert_se(sd_uid_get_state(u, &state2) == 0);
 214                         log_info("sd_uid_get_state("UID_FMT", …) → %s", u, state2);
 215                 }
 216         }
 217
 218         if (seat) {
 219                 _cleanup_free_ char *session2 = NULL, *buf = NULL;
 220                 _cleanup_free_ uid_t *uids = NULL;
 221                 unsigned n;
 222
 223                 assert_se(sd_uid_is_on_seat(u, 0, seat) > 0);
 224
 225                 r = sd_seat_get_active(seat, &session2, &u2);
 226                 assert_se(r == 0);
 227                 log_info("sd_seat_get_active(\"%s\", …) → \"%s\", "UID_FMT, seat, session2, u2);
 228
 229                 r = sd_uid_is_on_seat(u, 1, seat);
 230                 assert_se(IN_SET(r, 0, 1));
 231                 assert_se(!!r == streq(session, session2));
 232
 233                 r = sd_seat_get_sessions(seat, &sessions, &uids, &n);
 234                 assert_se(r >= 0);
 235                 assert_se(r == (int) strv_length(sessions));
 236                 assert_se(t = strv_join(sessions, " "));
 237                 strv_free(sessions);
 238                 log_info("sd_seat_get_sessions(\"%s\", …) → %s, \"%s\", [%u] {%s}",
 239                          seat, e(r), t, n, format_uids(&buf, uids, n));
 240                 free(t);
 241
 242                 assert_se(sd_seat_get_sessions(seat, NULL, NULL, NULL) == r);
 243         }
 244
 245         r = sd_get_seats(&seats);
 246         assert_se(r >= 0);
 247         assert_se(r == (int) strv_length(seats));
 248         assert_se(t = strv_join(seats, ", "));
 249         strv_free(seats);
 250         log_info("sd_get_seats(…) → [%i] \"%s\"", r, t);
 251         t = mfree(t);
 252
 253         assert_se(sd_get_seats(NULL) == r);
 254
 255         r = sd_seat_get_active(NULL, &t, NULL);
 256         assert_se(IN_SET(r, 0, -ENODATA, -ENXIO));
 257         log_info("sd_seat_get_active(NULL, …) (active session on current seat) → %s / \"%s\"", e(r), strnull(t));
 258         free(t);
 259
 260         r = sd_get_sessions(&sessions);
 261         assert_se(r >= 0);
 262         assert_se(r == (int) strv_length(sessions));
 263         assert_se(t = strv_join(sessions, ", "));
 264         strv_free(sessions);
 265         log_info("sd_get_sessions(…) → [%i] \"%s\"", r, t);
 266         free(t);
 267
 268         assert_se(sd_get_sessions(NULL) == r);
 269
 270         {
 271                 _cleanup_free_ uid_t *uids = NULL;
 272                 _cleanup_free_ char *buf = NULL;
 273
 274                 r = sd_get_uids(&uids);
 275                 assert_se(r >= 0);
 276                 log_info("sd_get_uids(…) → [%i] {%s}", r, format_uids(&buf, uids, r));
 277
 278                 assert_se(sd_get_uids(NULL) == r);
 279         }
 280
 281         {
 282                 _cleanup_strv_free_ char **machines = NULL;
 283                 _cleanup_free_ char *buf = NULL;
 284
 285                 r = sd_get_machine_names(&machines);
 286                 assert_se(r >= 0);
 287                 assert_se(r == (int) strv_length(machines));
 288                 assert_se(buf = strv_join(machines, " "));
 289                 log_info("sd_get_machines(…) → [%i] \"%s\"", r, buf);
 290
 291                 assert_se(sd_get_machine_names(NULL) == r);
 292         }
 293 }
 294
 295 TEST(monitor) {
 296         sd_login_monitor *m = NULL;
 297         int r;
 298
 299         if (!streq_ptr(saved_argv[1], "-m"))
 300                 return;
 301
 302         assert_se(sd_login_monitor_new("session", &m) == 0);
 303
 304         for (unsigned n = 0; n < 5; n++) {
 305                 struct pollfd pollfd = {};
 306                 usec_t timeout, nw;
 307
 308                 assert_se((pollfd.fd = sd_login_monitor_get_fd(m)) >= 0);
 309                 assert_se((pollfd.events = sd_login_monitor_get_events(m)) >= 0);
 310
 311                 assert_se(sd_login_monitor_get_timeout(m, &timeout) >= 0);
 312
 313                 nw = now(CLOCK_MONOTONIC);
 314
 315                 r = poll(&pollfd, 1,
 316                          timeout == UINT64_MAX ? -1 :
 317                          timeout > nw ? (int) ((timeout - nw) / 1000) :
 318                          0);
 319
 320                 assert_se(r >= 0);
 321
 322                 sd_login_monitor_flush(m);
 323                 printf("Wake!\n");
 324         }
 325
 326         sd_login_monitor_unref(m);
 327 }
 328
 329 static int intro(void) {
 330         log_info("/* Information printed is from the live system */");
 331         return EXIT_SUCCESS;
 332 }
 333
 334 DEFINE_TEST_MAIN_WITH_INTRO(LOG_INFO, intro);