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

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3 ***/
   4
   5 #include <poll.h>
   6 #include <string.h>
   7
   8 #include "sd-login.h"
   9
  10 #include "alloc-util.h"
  11 #include "fd-util.h"
  12 #include "format-util.h"
  13 #include "log.h"
  14 #include "string-util.h"
  15 #include "strv.h"
  16 #include "util.h"
  17
  18 static char* format_uids(char **buf, uid_t* uids, int count) {
  19         int pos = 0, k, inc;
  20         size_t size = (DECIMAL_STR_MAX(uid_t) + 1) * count + 1;
  21
  22         assert_se(*buf = malloc(size));
  23
  24         for (k = 0; k < count; k++) {
  25                 sprintf(*buf + pos, "%s"UID_FMT"%n", k > 0 ? " " : "", uids[k], &inc);
  26                 pos += inc;
  27         }
  28
  29         assert_se(pos < (ssize_t)size);
  30         (*buf)[pos] = '\0';
  31
  32         return *buf;
  33 }
  34
  35 static void test_login(void) {
  36         _cleanup_close_pair_ int pair[2] = { -1, -1 };
  37         _cleanup_free_ char *pp = NULL, *qq = NULL,
  38                 *display_session = NULL, *cgroup = NULL,
  39                 *display = NULL, *remote_user = NULL, *remote_host = NULL,
  40                 *type = NULL, *class = NULL, *state = NULL, *state2 = NULL,
  41                 *seat = NULL, *session = NULL,
  42                 *unit = NULL, *user_unit = NULL, *slice = NULL;
  43         int r;
  44         uid_t u, u2;
  45         char *t, **seats, **sessions;
  46
  47         r = sd_pid_get_unit(0, &unit);
  48         assert_se(r >= 0 || r == -ENODATA);
  49         log_info("sd_pid_get_unit(0, …) → \"%s\"", strna(unit));
  50
  51         r = sd_pid_get_user_unit(0, &user_unit);
  52         assert_se(r >= 0 || r == -ENODATA);
  53         log_info("sd_pid_get_user_unit(0, …) → \"%s\"", strna(user_unit));
  54
  55         r = sd_pid_get_slice(0, &slice);
  56         assert_se(r >= 0 || r == -ENODATA);
  57         log_info("sd_pid_get_slice(0, …) → \"%s\"", strna(slice));
  58
  59         r = sd_pid_get_session(0, &session);
  60         if (r < 0) {
  61                 log_warning_errno(r, "sd_pid_get_session(0, …): %m");
  62                 if (r == -ENODATA)
  63                         log_info("Seems we are not running in a session, skipping some tests.");
  64         } else {
  65                 log_info("sd_pid_get_session(0, …) → \"%s\"", session);
  66
  67                 assert_se(sd_pid_get_owner_uid(0, &u2) == 0);
  68                 log_info("sd_pid_get_owner_uid(0, …) → "UID_FMT, u2);
  69
  70                 assert_se(sd_pid_get_cgroup(0, &cgroup) == 0);
  71                 log_info("sd_pid_get_cgroup(0, …) → \"%s\"", cgroup);
  72
  73                 r = sd_uid_get_display(u2, &display_session);
  74                 assert_se(r >= 0 || r == -ENODATA);
  75                 log_info("sd_uid_get_display("UID_FMT", …) → \"%s\"",
  76                          u2, strnull(display_session));
  77
  78                 assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == 0);
  79                 sd_peer_get_session(pair[0], &pp);
  80                 sd_peer_get_session(pair[1], &qq);
  81                 assert_se(streq_ptr(pp, qq));
  82
  83                 r = sd_uid_get_sessions(u2, false, &sessions);
  84                 assert_se(r >= 0);
  85                 assert_se(r == (int) strv_length(sessions));
  86                 assert_se(t = strv_join(sessions, " "));
  87                 strv_free(sessions);
  88                 log_info("sd_uid_get_sessions("UID_FMT", …) → [%i] \"%s\"", u2, r, t);
  89                 free(t);
  90
  91                 assert_se(r == sd_uid_get_sessions(u2, false, NULL));
  92
  93                 r = sd_uid_get_seats(u2, false, &seats);
  94                 assert_se(r >= 0);
  95                 assert_se(r == (int) strv_length(seats));
  96                 assert_se(t = strv_join(seats, " "));
  97                 strv_free(seats);
  98                 log_info("sd_uid_get_seats("UID_FMT", …) → [%i] \"%s\"", u2, r, t);
  99                 free(t);
 100
 101                 assert_se(r == sd_uid_get_seats(u2, false, NULL));
 102         }
 103
 104         if (session) {
 105                 r = sd_session_is_active(session);
 106                 assert_se(r >= 0);
 107                 log_info("sd_session_is_active(\"%s\") → %s", session, yes_no(r));
 108
 109                 r = sd_session_is_remote(session);
 110                 assert_se(r >= 0);
 111                 log_info("sd_session_is_remote(\"%s\") → %s", session, yes_no(r));
 112
 113                 r = sd_session_get_state(session, &state);
 114                 assert_se(r >= 0);
 115                 log_info("sd_session_get_state(\"%s\") → \"%s\"", session, state);
 116
 117                 assert_se(sd_session_get_uid(session, &u) >= 0);
 118                 log_info("sd_session_get_uid(\"%s\") → "UID_FMT, session, u);
 119                 assert_se(u == u2);
 120
 121                 assert_se(sd_session_get_type(session, &type) >= 0);
 122                 log_info("sd_session_get_type(\"%s\") → \"%s\"", session, type);
 123
 124                 assert_se(sd_session_get_class(session, &class) >= 0);
 125                 log_info("sd_session_get_class(\"%s\") → \"%s\"", session, class);
 126
 127                 r = sd_session_get_display(session, &display);
 128                 assert_se(r >= 0 || r == -ENODATA);
 129                 log_info("sd_session_get_display(\"%s\") → \"%s\"", session, strna(display));
 130
 131                 r = sd_session_get_remote_user(session, &remote_user);
 132                 assert_se(r >= 0 || r == -ENODATA);
 133                 log_info("sd_session_get_remote_user(\"%s\") → \"%s\"",
 134                          session, strna(remote_user));
 135
 136                 r = sd_session_get_remote_host(session, &remote_host);
 137                 assert_se(r >= 0 || r == -ENODATA);
 138                 log_info("sd_session_get_remote_host(\"%s\") → \"%s\"",
 139                          session, strna(remote_host));
 140
 141                 r = sd_session_get_seat(session, &seat);
 142                 if (r >= 0) {
 143                         assert_se(seat);
 144
 145                         log_info("sd_session_get_seat(\"%s\") → \"%s\"", session, seat);
 146
 147                         r = sd_seat_can_multi_session(seat);
 148                         assert_se(r >= 0);
 149                         log_info("sd_session_can_multi_seat(\"%s\") → %s", seat, yes_no(r));
 150
 151                         r = sd_seat_can_tty(seat);
 152                         assert_se(r >= 0);
 153                         log_info("sd_session_can_tty(\"%s\") → %s", seat, yes_no(r));
 154
 155                         r = sd_seat_can_graphical(seat);
 156                         assert_se(r >= 0);
 157                         log_info("sd_session_can_graphical(\"%s\") → %s", seat, yes_no(r));
 158                 } else {
 159                         log_info_errno(r, "sd_session_get_seat(\"%s\"): %m", session);
 160                         assert_se(r == -ENODATA);
 161                 }
 162
 163                 assert_se(sd_uid_get_state(u, &state2) >= 0);
 164                 log_info("sd_uid_get_state("UID_FMT", …) → %s", u, state2);
 165         }
 166
 167         if (seat) {
 168                 _cleanup_free_ char *session2 = NULL, *buf = NULL;
 169                 _cleanup_free_ uid_t *uids = NULL;
 170                 unsigned n;
 171
 172                 assert_se(sd_uid_is_on_seat(u, 0, seat) > 0);
 173
 174                 r = sd_seat_get_active(seat, &session2, &u2);
 175                 assert_se(r >= 0);
 176                 log_info("sd_seat_get_active(\"%s\", …) → \"%s\", "UID_FMT, seat, session2, u2);
 177
 178                 r = sd_uid_is_on_seat(u, 1, seat);
 179                 assert_se(r >= 0);
 180                 assert_se(!!r == streq(session, session2));
 181
 182                 r = sd_seat_get_sessions(seat, &sessions, &uids, &n);
 183                 assert_se(r >= 0);
 184                 assert_se(r == (int) strv_length(sessions));
 185                 assert_se(t = strv_join(sessions, " "));
 186                 strv_free(sessions);
 187                 log_info("sd_seat_get_sessions(\"%s\", …) → %i, \"%s\", [%i] {%s}",
 188                          seat, r, t, n, format_uids(&buf, uids, n));
 189                 free(t);
 190
 191                 assert_se(sd_seat_get_sessions(seat, NULL, NULL, NULL) == r);
 192         }
 193
 194         r = sd_get_seats(&seats);
 195         assert_se(r >= 0);
 196         assert_se(r == (int) strv_length(seats));
 197         assert_se(t = strv_join(seats, ", "));
 198         strv_free(seats);
 199         log_info("sd_get_seats(…) → [%i] \"%s\"", r, t);
 200         t = mfree(t);
 201
 202         assert_se(sd_get_seats(NULL) == r);
 203
 204         r = sd_seat_get_active(NULL, &t, NULL);
 205         assert_se(IN_SET(r, 0, -ENODATA));
 206         log_info("sd_seat_get_active(NULL, …) (active session on current seat) → %s", strnull(t));
 207         free(t);
 208
 209         r = sd_get_sessions(&sessions);
 210         assert_se(r >= 0);
 211         assert_se(r == (int) strv_length(sessions));
 212         assert_se(t = strv_join(sessions, ", "));
 213         strv_free(sessions);
 214         log_info("sd_get_sessions(…) → [%i] \"%s\"", r, t);
 215         free(t);
 216
 217         assert_se(sd_get_sessions(NULL) == r);
 218
 219         {
 220                 _cleanup_free_ uid_t *uids = NULL;
 221                 _cleanup_free_ char *buf = NULL;
 222
 223                 r = sd_get_uids(&uids);
 224                 assert_se(r >= 0);
 225                 log_info("sd_get_uids(…) → [%i] {%s}", r, format_uids(&buf, uids, r));
 226
 227                 assert_se(sd_get_uids(NULL) == r);
 228         }
 229
 230         {
 231                 _cleanup_strv_free_ char **machines = NULL;
 232                 _cleanup_free_ char *buf = NULL;
 233
 234                 r = sd_get_machine_names(&machines);
 235                 assert_se(r >= 0);
 236                 assert_se(r == (int) strv_length(machines));
 237                 assert_se(buf = strv_join(machines, " "));
 238                 log_info("sd_get_machines(…) → [%i] \"%s\"", r, buf);
 239
 240                 assert_se(sd_get_machine_names(NULL) == r);
 241         }
 242 }
 243
 244 static void test_monitor(void) {
 245         sd_login_monitor *m = NULL;
 246         unsigned n;
 247         int r;
 248
 249         r = sd_login_monitor_new("session", &m);
 250         assert_se(r >= 0);
 251
 252         for (n = 0; n < 5; n++) {
 253                 struct pollfd pollfd = {};
 254                 usec_t timeout, nw;
 255
 256                 assert_se((pollfd.fd = sd_login_monitor_get_fd(m)) >= 0);
 257                 assert_se((pollfd.events = sd_login_monitor_get_events(m)) >= 0);
 258
 259                 assert_se(sd_login_monitor_get_timeout(m, &timeout) >= 0);
 260
 261                 nw = now(CLOCK_MONOTONIC);
 262
 263                 r = poll(&pollfd, 1,
 264                          timeout == (uint64_t) -1 ? -1 :
 265                          timeout > nw ? (int) ((timeout - nw) / 1000) :
 266                          0);
 267
 268                 assert_se(r >= 0);
 269
 270                 sd_login_monitor_flush(m);
 271                 printf("Wake!\n");
 272         }
 273
 274         sd_login_monitor_unref(m);
 275 }
 276
 277 int main(int argc, char* argv[]) {
 278         log_parse_environment();
 279         log_open();
 280
 281         log_info("/* Information printed is from the live system */");
 282
 283         test_login();
 284
 285         if (streq_ptr(argv[1], "-m"))
 286                 test_monitor();
 287
 288         return 0;
 289 }