/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see .
***/
#include
#include
#include "sd-login.h"
#include "alloc-util.h"
#include "fd-util.h"
#include "format-util.h"
#include "log.h"
#include "string-util.h"
#include "strv.h"
#include "util.h"
static char* format_uids(char **buf, uid_t* uids, int count) {
int pos = 0, k, inc;
size_t size = (DECIMAL_STR_MAX(uid_t) + 1) * count + 1;
assert_se(*buf = malloc(size));
for (k = 0; k < count; k++) {
sprintf(*buf + pos, "%s"UID_FMT"%n", k > 0 ? " " : "", uids[k], &inc);
pos += inc;
}
assert_se(pos < (ssize_t)size);
(*buf)[pos] = '\0';
return *buf;
}
static void test_login(void) {
_cleanup_close_pair_ int pair[2] = { -1, -1 };
_cleanup_free_ char *pp = NULL, *qq = NULL,
*display_session = NULL, *cgroup = NULL,
*display = NULL, *remote_user = NULL, *remote_host = NULL,
*type = NULL, *class = NULL, *state = NULL, *state2 = NULL,
*seat = NULL, *session = NULL,
*unit = NULL, *user_unit = NULL, *slice = NULL;
int r;
uid_t u, u2;
char *t, **seats, **sessions;
r = sd_pid_get_unit(0, &unit);
assert_se(r >= 0 || r == -ENODATA);
log_info("sd_pid_get_unit(0, …) → \"%s\"", strna(unit));
r = sd_pid_get_user_unit(0, &user_unit);
assert_se(r >= 0 || r == -ENODATA);
log_info("sd_pid_get_user_unit(0, …) → \"%s\"", strna(user_unit));
r = sd_pid_get_slice(0, &slice);
assert_se(r >= 0 || r == -ENODATA);
log_info("sd_pid_get_slice(0, …) → \"%s\"", strna(slice));
r = sd_pid_get_session(0, &session);
if (r < 0) {
log_warning_errno(r, "sd_pid_get_session(0, …): %m");
if (r == -ENODATA)
log_info("Seems we are not running in a session, skipping some tests.");
} else {
log_info("sd_pid_get_session(0, …) → \"%s\"", session);
assert_se(sd_pid_get_owner_uid(0, &u2) == 0);
log_info("sd_pid_get_owner_uid(0, …) → "UID_FMT, u2);
assert_se(sd_pid_get_cgroup(0, &cgroup) == 0);
log_info("sd_pid_get_cgroup(0, …) → \"%s\"", cgroup);
r = sd_uid_get_display(u2, &display_session);
assert_se(r >= 0 || r == -ENODATA);
log_info("sd_uid_get_display("UID_FMT", …) → \"%s\"",
u2, strnull(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);
log_info("sd_uid_get_sessions("UID_FMT", …) → [%i] \"%s\"", u2, r, 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);
log_info("sd_uid_get_seats("UID_FMT", …) → [%i] \"%s\"", u2, r, t);
free(t);
assert_se(r == sd_uid_get_seats(u2, false, NULL));
}
if (session) {
r = sd_session_is_active(session);
assert_se(r >= 0);
log_info("sd_session_is_active(\"%s\") → %s", session, yes_no(r));
r = sd_session_is_remote(session);
assert_se(r >= 0);
log_info("sd_session_is_remote(\"%s\") → %s", session, yes_no(r));
r = sd_session_get_state(session, &state);
assert_se(r >= 0);
log_info("sd_session_get_state(\"%s\") → \"%s\"", session, state);
assert_se(sd_session_get_uid(session, &u) >= 0);
log_info("sd_session_get_uid(\"%s\") → "UID_FMT, session, u);
assert_se(u == u2);
assert_se(sd_session_get_type(session, &type) >= 0);
log_info("sd_session_get_type(\"%s\") → \"%s\"", session, type);
assert_se(sd_session_get_class(session, &class) >= 0);
log_info("sd_session_get_class(\"%s\") → \"%s\"", session, class);
r = sd_session_get_display(session, &display);
assert_se(r >= 0 || r == -ENODATA);
log_info("sd_session_get_display(\"%s\") → \"%s\"", session, strna(display));
r = sd_session_get_remote_user(session, &remote_user);
assert_se(r >= 0 || r == -ENODATA);
log_info("sd_session_get_remote_user(\"%s\") → \"%s\"",
session, strna(remote_user));
r = sd_session_get_remote_host(session, &remote_host);
assert_se(r >= 0 || r == -ENODATA);
log_info("sd_session_get_remote_host(\"%s\") → \"%s\"",
session, strna(remote_host));
r = sd_session_get_seat(session, &seat);
if (r >= 0) {
assert_se(seat);
log_info("sd_session_get_seat(\"%s\") → \"%s\"", session, seat);
r = sd_seat_can_multi_session(seat);
assert_se(r >= 0);
log_info("sd_session_can_multi_seat(\"%s\") → %s", seat, yes_no(r));
r = sd_seat_can_tty(seat);
assert_se(r >= 0);
log_info("sd_session_can_tty(\"%s\") → %s", seat, yes_no(r));
r = sd_seat_can_graphical(seat);
assert_se(r >= 0);
log_info("sd_session_can_graphical(\"%s\") → %s", seat, yes_no(r));
} else {
log_info_errno(r, "sd_session_get_seat(\"%s\"): %m", session);
assert_se(r == -ENODATA);
}
assert_se(sd_uid_get_state(u, &state2) >= 0);
log_info("sd_uid_get_state("UID_FMT", …) → %s", u, state2);
}
if (seat) {
_cleanup_free_ char *session2 = NULL, *buf = NULL;
_cleanup_free_ uid_t *uids = NULL;
unsigned n;
assert_se(sd_uid_is_on_seat(u, 0, seat) > 0);
r = sd_seat_get_active(seat, &session2, &u2);
assert_se(r >= 0);
log_info("sd_seat_get_active(\"%s\", …) → \"%s\", "UID_FMT, seat, session2, u2);
r = sd_uid_is_on_seat(u, 1, seat);
assert_se(r >= 0);
assert_se(!!r == streq(session, session2));
r = sd_seat_get_sessions(seat, &sessions, &uids, &n);
assert_se(r >= 0);
assert_se(r == (int) strv_length(sessions));
assert_se(t = strv_join(sessions, " "));
strv_free(sessions);
log_info("sd_seat_get_sessions(\"%s\", …) → %i, \"%s\", [%i] {%s}",
seat, r, t, n, format_uids(&buf, uids, n));
free(t);
assert_se(sd_seat_get_sessions(seat, NULL, NULL, NULL) == r);
}
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);
log_info("sd_get_seats(…) → [%i] \"%s\"", r, t);
t = mfree(t);
assert_se(sd_get_seats(NULL) == r);
r = sd_seat_get_active(NULL, &t, NULL);
assert_se(IN_SET(r, 0, -ENODATA));
log_info("sd_seat_get_active(NULL, …) (active session on current seat) → %s", strnull(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);
log_info("sd_get_sessions(…) → [%i] \"%s\"", r, t);
free(t);
assert_se(sd_get_sessions(NULL) == r);
{
_cleanup_free_ uid_t *uids = NULL;
_cleanup_free_ char *buf = NULL;
r = sd_get_uids(&uids);
assert_se(r >= 0);
log_info("sd_get_uids(…) → [%i] {%s}", r, format_uids(&buf, uids, r));
assert_se(sd_get_uids(NULL) == r);
}
{
_cleanup_strv_free_ char **machines = NULL;
_cleanup_free_ char *buf = NULL;
r = sd_get_machine_names(&machines);
assert_se(r >= 0);
assert_se(r == (int) strv_length(machines));
assert_se(buf = strv_join(machines, " "));
log_info("sd_get_machines(…) → [%i] \"%s\"", r, buf);
assert_se(sd_get_machine_names(NULL) == r);
}
}
static void test_monitor(void) {
sd_login_monitor *m = NULL;
unsigned n;
int r;
r = sd_login_monitor_new("session", &m);
assert_se(r >= 0);
for (n = 0; n < 5; n++) {
struct pollfd pollfd = {};
usec_t timeout, nw;
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[]) {
log_parse_environment();
log_open();
log_info("/* Information printed is from the live system */");
test_login();
if (streq_ptr(argv[1], "-m"))
test_monitor();
return 0;
}