/** * polkit_backend_session_monitor_get_session_for_subject: * @monitor: A #PolkitBackendSessionMonitor. * @subject: A #PolkitSubject. * @error: Return location for error. * * Gets the session corresponding to @subject or %NULL if no session exists. * * Returns: %NULL if @error is set otherwise a #PolkitUnixSession that should be freed with g_object_unref(). */ PolkitSubject * polkit_backend_session_monitor_get_session_for_subject (PolkitBackendSessionMonitor *monitor, PolkitSubject *subject, GError **error) { PolkitUnixProcess *tmp_process = NULL; PolkitUnixProcess *process = NULL; PolkitSubject *session = NULL; char *session_id = NULL; pid_t pid; #if HAVE_SD_UID_GET_DISPLAY uid_t uid; #endif if (POLKIT_IS_UNIX_PROCESS (subject)) process = POLKIT_UNIX_PROCESS (subject); /* We already have a process */ else if (POLKIT_IS_SYSTEM_BUS_NAME (subject)) { /* Convert bus name to process */ tmp_process = (PolkitUnixProcess*)polkit_system_bus_name_get_process_sync (POLKIT_SYSTEM_BUS_NAME (subject), NULL, error); if (!tmp_process) goto out; process = tmp_process; } else { g_set_error (error, POLKIT_ERROR, POLKIT_ERROR_NOT_SUPPORTED, "Cannot get session for subject of type %s", g_type_name (G_TYPE_FROM_INSTANCE (subject))); } /* Now do process -> pid -> same session */ g_assert (process != NULL); pid = polkit_unix_process_get_pid (process); if (sd_pid_get_session (pid, &session_id) >= 0) { session = polkit_unix_session_new (session_id); goto out; } #if HAVE_SD_UID_GET_DISPLAY /* Now do process -> uid -> graphical session (systemd version 213)*/ if (sd_pid_get_owner_uid (pid, &uid) < 0) goto out; if (sd_uid_get_display (uid, &session_id) >= 0) { session = polkit_unix_session_new (session_id); goto out; } #endif out: free (session_id); if (tmp_process) g_object_unref (tmp_process); return session; }
/** * pk_dbus_get_session_systemd: **/ static gchar * pk_dbus_get_session_systemd (guint pid) { g_autofree gchar *session_id = NULL; uid_t uid; /* do process -> pid -> same session */ if (sd_pid_get_session (pid, &session_id) >= 0) return pk_dbus_make_logind_session_id (session_id); /* do process -> uid -> graphical session */ if (sd_pid_get_owner_uid (pid, &uid) < 0) return NULL; if (sd_uid_get_display (uid, &session_id) >= 0) return pk_dbus_make_logind_session_id (session_id); return NULL; }
static void test_login(void) { _cleanup_close_pair_ int pair[2] = { -1, -1 }; _cleanup_free_ char *pp = NULL, *qq = NULL; int r, k; uid_t u, u2; char *seat, *type, *class, *display, *remote_user, *remote_host, *display_session; char *session; char *state; char *session2; char *t; char **seats, **sessions, **machines; uid_t *uids; unsigned n; struct pollfd pollfd; sd_login_monitor *m = NULL; assert_se(sd_pid_get_session(0, &session) == 0); printf("session = %s\n", session); assert_se(sd_pid_get_owner_uid(0, &u2) == 0); printf("user = "******"\n", u2); display_session = NULL; r = sd_uid_get_display(u2, &display_session); assert_se(r >= 0 || r == -ENXIO); printf("user's display session = %s\n", strna(display_session)); free(display_session); assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == 0); sd_peer_get_session(pair[0], &pp); sd_peer_get_session(pair[1], &qq); assert_se(streq_ptr(pp, qq)); r = sd_uid_get_sessions(u2, false, &sessions); assert_se(r >= 0); assert_se(r == (int) strv_length(sessions)); assert_se(t = strv_join(sessions, ", ")); strv_free(sessions); printf("sessions = %s\n", t); free(t); assert_se(r == sd_uid_get_sessions(u2, false, NULL)); r = sd_uid_get_seats(u2, false, &seats); assert_se(r >= 0); assert_se(r == (int) strv_length(seats)); assert_se(t = strv_join(seats, ", ")); strv_free(seats); printf("seats = %s\n", t); free(t); assert_se(r == sd_uid_get_seats(u2, false, NULL)); r = sd_session_is_active(session); assert_se(r >= 0); printf("active = %s\n", yes_no(r)); r = sd_session_is_remote(session); assert_se(r >= 0); printf("remote = %s\n", yes_no(r)); r = sd_session_get_state(session, &state); assert_se(r >= 0); printf("state = %s\n", state); free(state); assert_se(sd_session_get_uid(session, &u) >= 0); printf("uid = "UID_FMT"\n", u); assert_se(u == u2); assert_se(sd_session_get_type(session, &type) >= 0); printf("type = %s\n", type); free(type); assert_se(sd_session_get_class(session, &class) >= 0); printf("class = %s\n", class); free(class); display = NULL; r = sd_session_get_display(session, &display); assert_se(r >= 0 || r == -ENXIO); printf("display = %s\n", strna(display)); free(display); remote_user = NULL; r = sd_session_get_remote_user(session, &remote_user); assert_se(r >= 0 || r == -ENXIO); printf("remote_user = %s\n", strna(remote_user)); free(remote_user); remote_host = NULL; r = sd_session_get_remote_host(session, &remote_host); assert_se(r >= 0 || r == -ENXIO); printf("remote_host = %s\n", strna(remote_host)); free(remote_host); assert_se(sd_session_get_seat(session, &seat) >= 0); printf("seat = %s\n", seat); r = sd_seat_can_multi_session(seat); assert_se(r >= 0); printf("can do multi session = %s\n", yes_no(r)); r = sd_seat_can_tty(seat); assert_se(r >= 0); printf("can do tty = %s\n", yes_no(r)); r = sd_seat_can_graphical(seat); assert_se(r >= 0); printf("can do graphical = %s\n", yes_no(r)); assert_se(sd_uid_get_state(u, &state) >= 0); printf("state = %s\n", state); assert_se(sd_uid_is_on_seat(u, 0, seat) > 0); k = sd_uid_is_on_seat(u, 1, seat); assert_se(k >= 0); assert_se(!!r == !!r); assert_se(sd_seat_get_active(seat, &session2, &u2) >= 0); printf("session2 = %s\n", session2); printf("uid2 = "UID_FMT"\n", u2); r = sd_seat_get_sessions(seat, &sessions, &uids, &n); assert_se(r >= 0); printf("n_sessions = %i\n", r); assert_se(r == (int) strv_length(sessions)); assert_se(t = strv_join(sessions, ", ")); strv_free(sessions); printf("sessions = %s\n", t); free(t); printf("uids ="); for (k = 0; k < (int) n; k++) printf(" "UID_FMT, uids[k]); printf("\n"); free(uids); assert_se(sd_seat_get_sessions(seat, NULL, NULL, NULL) == r); free(session); free(state); free(session2); free(seat); r = sd_get_seats(&seats); assert_se(r >= 0); assert_se(r == (int) strv_length(seats)); assert_se(t = strv_join(seats, ", ")); strv_free(seats); printf("n_seats = %i\n", r); printf("seats = %s\n", t); free(t); assert_se(sd_get_seats(NULL) == r); r = sd_seat_get_active(NULL, &t, NULL); assert_se(r >= 0); printf("active session on current seat = %s\n", t); free(t); r = sd_get_sessions(&sessions); assert_se(r >= 0); assert_se(r == (int) strv_length(sessions)); assert_se(t = strv_join(sessions, ", ")); strv_free(sessions); printf("n_sessions = %i\n", r); printf("sessions = %s\n", t); free(t); assert_se(sd_get_sessions(NULL) == r); r = sd_get_uids(&uids); assert_se(r >= 0); printf("uids ="); for (k = 0; k < r; k++) printf(" "UID_FMT, uids[k]); printf("\n"); free(uids); printf("n_uids = %i\n", r); assert_se(sd_get_uids(NULL) == r); r = sd_get_machine_names(&machines); assert_se(r >= 0); assert_se(r == (int) strv_length(machines)); assert_se(t = strv_join(machines, ", ")); strv_free(machines); printf("n_machines = %i\n", r); printf("machines = %s\n", t); free(t); r = sd_login_monitor_new("session", &m); assert_se(r >= 0); for (n = 0; n < 5; n++) { usec_t timeout, nw; zero(pollfd); assert_se((pollfd.fd = sd_login_monitor_get_fd(m)) >= 0); assert_se((pollfd.events = sd_login_monitor_get_events(m)) >= 0); assert_se(sd_login_monitor_get_timeout(m, &timeout) >= 0); nw = now(CLOCK_MONOTONIC); r = poll(&pollfd, 1, timeout == (uint64_t) -1 ? -1 : timeout > nw ? (int) ((timeout - nw) / 1000) : 0); assert_se(r >= 0); sd_login_monitor_flush(m); printf("Wake!\n"); } sd_login_monitor_unref(m); }