/**
* 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;
}
int main(int argc, char* argv[]) {
/* The small core field we allocate on the stack, to keep things simple */
char
*core_pid = NULL, *core_uid = NULL, *core_gid = NULL, *core_signal = NULL,
*core_session = NULL, *core_exe = NULL, *core_comm = NULL, *core_cmdline = NULL,
*core_cgroup = NULL, *core_cwd = NULL, *core_root = NULL, *core_unit = NULL,
*core_slice = NULL;
/* The larger ones we allocate on the heap */
_cleanup_free_ char
*core_timestamp = NULL, *core_message = NULL, *coredump_data = NULL, *core_owner_uid = NULL,
*core_open_fds = NULL, *core_proc_status = NULL, *core_proc_maps = NULL, *core_proc_limits = NULL,
*core_proc_cgroup = NULL, *core_environ = NULL;
_cleanup_free_ char *exe = NULL, *comm = NULL, *filename = NULL;
const char *info[_INFO_LEN];
_cleanup_close_ int coredump_fd = -1;
struct iovec iovec[26];
uint64_t coredump_size;
int r, j = 0;
uid_t uid, owner_uid;
gid_t gid;
pid_t pid;
char *t;
const char *p;
/* Make sure we never enter a loop */
prctl(PR_SET_DUMPABLE, 0);
/* First, log to a safe place, since we don't know what
* crashed and it might be journald which we'd rather not log
* to then. */
log_set_target(LOG_TARGET_KMSG);
log_open();
if (argc < INFO_COMM + 1) {
log_error("Not enough arguments passed from kernel (%d, expected %d).",
argc - 1, INFO_COMM + 1 - 1);
r = -EINVAL;
goto finish;
}
/* Ignore all parse errors */
parse_config();
log_debug("Selected storage '%s'.", coredump_storage_to_string(arg_storage));
log_debug("Selected compression %s.", yes_no(arg_compress));
r = parse_uid(argv[INFO_UID + 1], &uid);
if (r < 0) {
log_error("Failed to parse UID.");
goto finish;
}
r = parse_pid(argv[INFO_PID + 1], &pid);
if (r < 0) {
log_error("Failed to parse PID.");
goto finish;
}
r = parse_gid(argv[INFO_GID + 1], &gid);
if (r < 0) {
log_error("Failed to parse GID.");
goto finish;
}
if (get_process_comm(pid, &comm) < 0) {
log_warning("Failed to get COMM, falling back to the command line.");
comm = strv_join(argv + INFO_COMM + 1, " ");
}
if (get_process_exe(pid, &exe) < 0)
log_warning("Failed to get EXE.");
info[INFO_PID] = argv[INFO_PID + 1];
info[INFO_UID] = argv[INFO_UID + 1];
info[INFO_GID] = argv[INFO_GID + 1];
info[INFO_SIGNAL] = argv[INFO_SIGNAL + 1];
info[INFO_TIMESTAMP] = argv[INFO_TIMESTAMP + 1];
info[INFO_COMM] = comm;
info[INFO_EXE] = exe;
if (cg_pid_get_unit(pid, &t) >= 0) {
if (streq(t, SPECIAL_JOURNALD_SERVICE)) {
free(t);
/* If we are journald, we cut things short,
* don't write to the journal, but still
* create a coredump. */
if (arg_storage != COREDUMP_STORAGE_NONE)
arg_storage = COREDUMP_STORAGE_EXTERNAL;
r = save_external_coredump(info, uid, &filename, &coredump_fd, &coredump_size);
if (r < 0)
goto finish;
r = maybe_remove_external_coredump(filename, coredump_size);
if (r < 0)
goto finish;
log_info("Detected coredump of the journal daemon itself, diverted to %s.", filename);
goto finish;
}
core_unit = strjoina("COREDUMP_UNIT=", t);
free(t);
} else if (cg_pid_get_user_unit(pid, &t) >= 0) {
core_unit = strjoina("COREDUMP_USER_UNIT=", t);
free(t);
}
if (core_unit)
IOVEC_SET_STRING(iovec[j++], core_unit);
/* OK, now we know it's not the journal, hence we can make use
* of it now. */
log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
log_open();
core_pid = strjoina("COREDUMP_PID=", info[INFO_PID]);
IOVEC_SET_STRING(iovec[j++], core_pid);
core_uid = strjoina("COREDUMP_UID=", info[INFO_UID]);
IOVEC_SET_STRING(iovec[j++], core_uid);
core_gid = strjoina("COREDUMP_GID=", info[INFO_GID]);
IOVEC_SET_STRING(iovec[j++], core_gid);
core_signal = strjoina("COREDUMP_SIGNAL=", info[INFO_SIGNAL]);
IOVEC_SET_STRING(iovec[j++], core_signal);
if (sd_pid_get_session(pid, &t) >= 0) {
core_session = strjoina("COREDUMP_SESSION=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_session);
}
if (sd_pid_get_owner_uid(pid, &owner_uid) >= 0) {
r = asprintf(&core_owner_uid,
"COREDUMP_OWNER_UID=" UID_FMT, owner_uid);
if (r > 0)
IOVEC_SET_STRING(iovec[j++], core_owner_uid);
}
if (sd_pid_get_slice(pid, &t) >= 0) {
core_slice = strjoina("COREDUMP_SLICE=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_slice);
}
if (comm) {
core_comm = strjoina("COREDUMP_COMM=", comm);
IOVEC_SET_STRING(iovec[j++], core_comm);
}
if (exe) {
core_exe = strjoina("COREDUMP_EXE=", exe);
IOVEC_SET_STRING(iovec[j++], core_exe);
}
if (get_process_cmdline(pid, 0, false, &t) >= 0) {
core_cmdline = strjoina("COREDUMP_CMDLINE=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_cmdline);
}
if (cg_pid_get_path_shifted(pid, NULL, &t) >= 0) {
core_cgroup = strjoina("COREDUMP_CGROUP=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_cgroup);
}
if (compose_open_fds(pid, &t) >= 0) {
core_open_fds = strappend("COREDUMP_OPEN_FDS=", t);
free(t);
if (core_open_fds)
IOVEC_SET_STRING(iovec[j++], core_open_fds);
}
p = procfs_file_alloca(pid, "status");
if (read_full_file(p, &t, NULL) >= 0) {
core_proc_status = strappend("COREDUMP_PROC_STATUS=", t);
free(t);
if (core_proc_status)
IOVEC_SET_STRING(iovec[j++], core_proc_status);
}
p = procfs_file_alloca(pid, "maps");
if (read_full_file(p, &t, NULL) >= 0) {
core_proc_maps = strappend("COREDUMP_PROC_MAPS=", t);
free(t);
if (core_proc_maps)
IOVEC_SET_STRING(iovec[j++], core_proc_maps);
}
p = procfs_file_alloca(pid, "limits");
if (read_full_file(p, &t, NULL) >= 0) {
core_proc_limits = strappend("COREDUMP_PROC_LIMITS=", t);
free(t);
if (core_proc_limits)
IOVEC_SET_STRING(iovec[j++], core_proc_limits);
}
p = procfs_file_alloca(pid, "cgroup");
if (read_full_file(p, &t, NULL) >=0) {
core_proc_cgroup = strappend("COREDUMP_PROC_CGROUP=", t);
free(t);
if (core_proc_cgroup)
IOVEC_SET_STRING(iovec[j++], core_proc_cgroup);
}
if (get_process_cwd(pid, &t) >= 0) {
core_cwd = strjoina("COREDUMP_CWD=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_cwd);
}
if (get_process_root(pid, &t) >= 0) {
core_root = strjoina("COREDUMP_ROOT=", t);
free(t);
IOVEC_SET_STRING(iovec[j++], core_root);
}
if (get_process_environ(pid, &t) >= 0) {
core_environ = strappend("COREDUMP_ENVIRON=", t);
free(t);
if (core_environ)
IOVEC_SET_STRING(iovec[j++], core_environ);
}
core_timestamp = strjoin("COREDUMP_TIMESTAMP=", info[INFO_TIMESTAMP], "000000", NULL);
if (core_timestamp)
IOVEC_SET_STRING(iovec[j++], core_timestamp);
IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1");
IOVEC_SET_STRING(iovec[j++], "PRIORITY=2");
/* Vacuum before we write anything again */
coredump_vacuum(-1, arg_keep_free, arg_max_use);
/* Always stream the coredump to disk, if that's possible */
r = save_external_coredump(info, uid, &filename, &coredump_fd, &coredump_size);
if (r < 0)
/* skip whole core dumping part */
goto log;
/* If we don't want to keep the coredump on disk, remove it
* now, as later on we will lack the privileges for
* it. However, we keep the fd to it, so that we can still
* process it and log it. */
r = maybe_remove_external_coredump(filename, coredump_size);
if (r < 0)
goto finish;
if (r == 0) {
const char *coredump_filename;
coredump_filename = strjoina("COREDUMP_FILENAME=", filename);
IOVEC_SET_STRING(iovec[j++], coredump_filename);
}
/* Vacuum again, but exclude the coredump we just created */
coredump_vacuum(coredump_fd, arg_keep_free, arg_max_use);
/* Now, let's drop privileges to become the user who owns the
* segfaulted process and allocate the coredump memory under
* the user's uid. This also ensures that the credentials
* journald will see are the ones of the coredumping user,
* thus making sure the user gets access to the core
* dump. Let's also get rid of all capabilities, if we run as
* root, we won't need them anymore. */
r = drop_privileges(uid, gid, 0);
if (r < 0) {
log_error_errno(r, "Failed to drop privileges: %m");
goto finish;
}
#ifdef HAVE_ELFUTILS
/* Try to get a strack trace if we can */
if (coredump_size <= arg_process_size_max) {
_cleanup_free_ char *stacktrace = NULL;
r = coredump_make_stack_trace(coredump_fd, exe, &stacktrace);
if (r >= 0)
core_message = strjoin("MESSAGE=Process ", info[INFO_PID], " (", comm, ") of user ", info[INFO_UID], " dumped core.\n\n", stacktrace, NULL);
else if (r == -EINVAL)
log_warning("Failed to generate stack trace: %s", dwfl_errmsg(dwfl_errno()));
else
log_warning_errno(r, "Failed to generate stack trace: %m");
}
if (!core_message)
#endif
log:
core_message = strjoin("MESSAGE=Process ", info[INFO_PID], " (", comm, ") of user ", info[INFO_UID], " dumped core.", NULL);
if (core_message)
IOVEC_SET_STRING(iovec[j++], core_message);
/* Optionally store the entire coredump in the journal */
if (IN_SET(arg_storage, COREDUMP_STORAGE_JOURNAL, COREDUMP_STORAGE_BOTH) &&
coredump_size <= arg_journal_size_max) {
size_t sz = 0;
/* Store the coredump itself in the journal */
r = allocate_journal_field(coredump_fd, (size_t) coredump_size, &coredump_data, &sz);
if (r >= 0) {
iovec[j].iov_base = coredump_data;
iovec[j].iov_len = sz;
j++;
}
}
r = sd_journal_sendv(iovec, j);
if (r < 0)
log_error_errno(r, "Failed to log coredump: %m");
finish:
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
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;
}
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);
}
