/**
* shell_session_is_active_for_systemd:
*
* Checks whether the session we are running in is currently active,
* i.e. in the foreground and ready for user input.
*
* Returns: TRUE if session is active
*/
gboolean
shell_session_is_active_for_systemd (void)
{
/* If this isn't systemd, let's assume the session is active. */
#ifdef WITH_SYSTEMD
if (sd_booted () <= 0)
return TRUE;
return sd_session_is_active (NULL) != 0;
#else
return TRUE;
#endif
}
static bool
weston_launch_allowed(struct weston_launch *wl)
{
struct group *gr;
gid_t *groups;
int i;
#ifdef HAVE_SYSTEMD_LOGIN
char *session, *seat;
int err;
#endif
if (getuid() == 0)
return true;
gr = getgrnam("weston-launch");
if (gr) {
groups = read_groups();
if (groups) {
for (i = 0; groups[i]; ++i) {
if (groups[i] == gr->gr_gid) {
free(groups);
return true;
}
}
free(groups);
}
}
#ifdef HAVE_SYSTEMD_LOGIN
err = sd_pid_get_session(getpid(), &session);
if (err == 0 && session) {
if (sd_session_is_active(session) &&
sd_session_get_seat(session, &seat) == 0) {
free(seat);
free(session);
return true;
}
free(session);
}
#endif
return false;
}
gboolean
polkit_backend_session_monitor_is_session_active (PolkitBackendSessionMonitor *monitor,
PolkitSubject *session)
{
const char *session_id;
char *state;
uid_t uid;
gboolean is_active = FALSE;
session_id = polkit_unix_session_get_session_id (POLKIT_UNIX_SESSION (session));
g_debug ("Checking whether session %s is active.", session_id);
/* Check whether *any* of the user's current sessions are active. */
if (sd_session_get_uid (session_id, &uid) < 0)
goto fallback;
g_debug ("Session %s has UID %u.", session_id, uid);
if (sd_uid_get_state (uid, &state) < 0)
goto fallback;
g_debug ("UID %u has state %s.", uid, state);
is_active = (g_strcmp0 (state, "active") == 0);
free (state);
return is_active;
fallback:
/* Fall back to checking the session. This is not ideal, since the user
* might have multiple sessions, and we cannot guarantee to have chosen
* the active one.
*
* See: https://bugs.freedesktop.org/show_bug.cgi?id=76358. */
return sd_session_is_active (session_id);
}
static void test_login(void) {
int r, k;
uid_t u, u2;
char *seat, *type, *class, *display;
char *session;
char *state;
char *session2;
char *t;
char **seats, **sessions, **machines;
uid_t *uids;
unsigned n;
struct pollfd pollfd;
sd_login_monitor *m;
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 = %lu\n", (unsigned long) u2);
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_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 = %lu\n", (unsigned long) 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);
assert_se(sd_session_get_display(session, &display) >= 0);
printf("display = %s\n", display);
free(display);
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 = %lu\n", (unsigned long) 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(" %lu", (unsigned long) 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(" %lu", (unsigned long) 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);
}
int main(int argc, char* argv[]) {
int r, k;
uid_t u, u2;
char *seat, *type, *class, *display;
char *session;
char *state;
char *session2;
char *t;
char **seats, **sessions;
uid_t *uids;
unsigned n;
struct pollfd pollfd;
sd_login_monitor *m;
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 = %lu\n", (unsigned long) u2);
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_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 = %lu\n", (unsigned long) 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);
assert_se(sd_session_get_display(session, &display) >= 0);
printf("display = %s\n", display);
free(display);
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 = %lu\n", (unsigned long) 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(" %lu", (unsigned long) 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(" %lu", (unsigned long) uids[k]);
printf("\n");
free(uids);
printf("n_uids = %i\n", r);
assert_se(sd_get_uids(NULL) == r);
r = sd_login_monitor_new("session", &m);
assert_se(r >= 0);
zero(pollfd);
pollfd.fd = sd_login_monitor_get_fd(m);
pollfd.events = POLLIN;
for (n = 0; n < 5; n++) {
r = poll(&pollfd, 1, -1);
assert_se(r >= 0);
sd_login_monitor_flush(m);
printf("Wake!\n");
}
sd_login_monitor_unref(m);
return 0;
}
gboolean
polkit_backend_session_monitor_is_session_active (PolkitBackendSessionMonitor *monitor,
PolkitSubject *session)
{
return sd_session_is_active (polkit_unix_session_get_session_id (POLKIT_UNIX_SESSION (session)));
}
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);
}
