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Merge pull request #7570 from keszybz/sulogin-shell-reload-manager
Reload manager before exit from sulogin shell
This commit is contained in:
commit
9e32914aa5
10
meson.build
10
meson.build
@ -1299,7 +1299,6 @@ subdir('src/resolve')
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subdir('src/timedate')
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subdir('src/timesync')
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subdir('src/vconsole')
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subdir('src/sulogin-shell')
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subdir('src/boot/efi')
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subdir('src/test')
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@ -2377,6 +2376,15 @@ if conf.get('ENABLE_NETWORKD') == 1
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install_dir : rootbindir)
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public_programs += [exe]
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endif
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executable('systemd-sulogin-shell',
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['src/sulogin-shell/sulogin-shell.c'],
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include_directories : includes,
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link_with : [libshared],
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install_rpath : rootlibexecdir,
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install : true,
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install_dir : rootlibexecdir)
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############################################################
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foreach tuple : tests
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@ -1,25 +0,0 @@
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# SPDX-License-Identifier: LGPL-2.1+
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#
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# Copyright 2017 Zbigniew Jędrzejewski-Szmek
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# systemd is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with systemd; If not, see <http://www.gnu.org/licenses/>.
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executable('systemd-sulogin-shell',
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['sulogin-shell.c'],
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include_directories : includes,
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link_with : [libshared],
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dependencies : [],
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install_rpath : rootlibexecdir,
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install : true,
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install_dir : rootlibexecdir)
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@ -23,21 +23,43 @@
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#include "bus-util.h"
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#include "bus-error.h"
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#include "def.h"
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#include "log.h"
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#include "process-util.h"
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#include "sd-bus.h"
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#include "signal-util.h"
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static int start_default_target(void) {
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static int reload_manager(sd_bus *bus) {
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
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int r;
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r = bus_connect_system_systemd(&bus);
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if (r < 0) {
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log_error_errno(r, "Failed to get D-Bus connection: %m");
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return false;
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}
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log_info("Reloading system manager configuration");
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r = sd_bus_message_new_method_call(
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bus,
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&m,
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"org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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"Reload");
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if (r < 0)
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return bus_log_create_error(r);
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/* Note we use an extra-long timeout here. This is because a reload or reexec means generators are rerun which
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* are timed out after DEFAULT_TIMEOUT_USEC. Let's use twice that time here, so that the generators can have
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* their timeout, and for everything else there's the same time budget in place. */
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r = sd_bus_call(bus, m, DEFAULT_TIMEOUT_USEC * 2, &error, NULL);
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if (r < 0)
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return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r));
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return 0;
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}
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static int start_default_target(sd_bus *bus) {
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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int r;
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log_info("Starting default target");
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@ -57,14 +79,12 @@ static int start_default_target(void) {
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return r;
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}
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static void fork_wait(const char* const cmdline[]) {
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static int fork_wait(const char* const cmdline[]) {
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pid_t pid;
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pid = fork();
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if (pid < 0) {
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log_error_errno(errno, "fork(): %m");
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return;
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}
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if (pid < 0)
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return log_error_errno(errno, "fork(): %m");
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if (pid == 0) {
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/* Child */
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@ -78,18 +98,19 @@ static void fork_wait(const char* const cmdline[]) {
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_exit(EXIT_FAILURE); /* Operational error */
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}
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wait_for_terminate_and_warn(cmdline[0], pid, false);
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return wait_for_terminate_and_warn(cmdline[0], pid, false);
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}
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static void print_mode(const char* mode) {
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printf("You are in %s mode. After logging in, type \"journalctl -xb\" to view\n"
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"system logs, \"systemctl reboot\" to reboot, \"systemctl default\" or ^D to boot\n"
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"into default mode.\n", mode);
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"system logs, \"systemctl reboot\" to reboot, \"systemctl default\" or \"exit\"\n"
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"to boot into default mode.\n", mode);
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fflush(stdout);
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}
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int main(int argc, char *argv[]) {
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static const char* const sulogin_cmdline[] = {SULOGIN, NULL};
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_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
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int r;
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log_set_target(LOG_TARGET_AUTO);
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@ -98,9 +119,17 @@ int main(int argc, char *argv[]) {
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print_mode(argc > 1 ? argv[1] : "");
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fork_wait(sulogin_cmdline);
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(void) fork_wait(sulogin_cmdline);
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r = start_default_target();
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r = bus_connect_system_systemd(&bus);
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if (r < 0) {
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log_warning_errno(r, "Failed to get D-Bus connection: %m");
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r = 0;
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} else {
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(void) reload_manager(bus);
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r = start_default_target(bus);
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}
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return r >= 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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