19adb8a320
A new config file /etc/systemd/sleep.conf is added. It is parsed by systemd-sleep and logind. The strings written to /sys/power/disk and /sys/power/state can be configured. This allows people to use different modes of suspend on systems with broken or special hardware. Configuration is shared between systemd-sleep and logind to enable logind to answer the question "can the system be put to sleep" as correctly as possible without actually invoking the action. If the user configured systemd-sleep to only use 'freeze', but current kernel does not support it, logind will properly report that the system cannot be put to sleep. https://bugs.freedesktop.org/show_bug.cgi?id=57793 https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=7e73c5ae6e7991a6c01f6d096ff8afaef4458c36 http://lists.freedesktop.org/archives/systemd-devel/2013-February/009238.html SYSTEM_CONFIG_FILE and USER_CONFIG_FILE defines were removed since they were used in only a few places and with the addition of /etc/systemd/sleep.conf it becomes easier to just append the name of each file to the dir name.
152 lines
5.5 KiB
C
152 lines
5.5 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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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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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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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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***/
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#include <unistd.h>
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#include <systemd/sd-messages.h>
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#include "conf-parser.h"
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#include "special.h"
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#include "dbus-common.h"
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#include "logind-action.h"
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#include "sleep-config.h"
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int manager_handle_action(
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Manager *m,
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InhibitWhat inhibit_key,
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HandleAction handle,
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bool ignore_inhibited,
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bool is_edge) {
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static const char * const message_table[_HANDLE_ACTION_MAX] = {
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[HANDLE_POWEROFF] = "Powering Off...",
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[HANDLE_REBOOT] = "Rebooting...",
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[HANDLE_HALT] = "Halting...",
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[HANDLE_KEXEC] = "Rebooting via kexec...",
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[HANDLE_SUSPEND] = "Suspending...",
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[HANDLE_HIBERNATE] = "Hibernating...",
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[HANDLE_HYBRID_SLEEP] = "Hibernating and suspending..."
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};
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static const char * const target_table[_HANDLE_ACTION_MAX] = {
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[HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET,
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[HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET,
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[HANDLE_HALT] = SPECIAL_HALT_TARGET,
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[HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET,
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[HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET,
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[HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET,
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[HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET
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};
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DBusError error;
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int r;
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InhibitWhat inhibit_operation;
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bool supported;
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assert(m);
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if (m->action_what) {
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log_debug("Action already in progress, ignoring.");
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return -EALREADY;
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}
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/* If the key handling is turned off, don't do anything */
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if (handle == HANDLE_IGNORE) {
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log_debug("Refusing operation, as it is turned off.");
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return 0;
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}
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if (handle == HANDLE_SUSPEND)
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supported = can_sleep("suspend") > 0;
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else if (handle == HANDLE_HIBERNATE)
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supported = can_sleep("hibernate") > 0;
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else if (handle == HANDLE_HYBRID_SLEEP)
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supported = can_sleep("hybrid-sleep") > 0;
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else if (handle == HANDLE_KEXEC)
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supported = access("/sbin/kexec", X_OK) >= 0;
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else
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supported = true;
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if (!supported) {
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log_warning("Requested operation not supported, ignoring.");
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return -ENOTSUP;
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}
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/* If the key handling is inhibited, don't do anything */
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if (inhibit_key > 0) {
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if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0)) {
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log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key));
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return 0;
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}
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}
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/* Locking is handled differently from the rest. */
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if (handle == HANDLE_LOCK) {
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log_info("Locking sessions...");
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session_send_lock_all(m, true);
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return 1;
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}
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inhibit_operation = handle == HANDLE_SUSPEND || handle == HANDLE_HIBERNATE || handle == HANDLE_HYBRID_SLEEP ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN;
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/* If the actual operation is inhibited, warn and fail */
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if (!ignore_inhibited &&
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manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0)) {
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/* If this is just a recheck of the lid switch then don't warn about anything */
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if (!is_edge) {
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log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_operation));
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return 0;
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}
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log_error("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_operation));
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warn_melody();
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return -EPERM;
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}
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log_info("%s", message_table[handle]);
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dbus_error_init(&error);
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r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error);
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if (r < 0) {
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log_error("Failed to execute operation: %s", bus_error_message(&error));
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dbus_error_free(&error);
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return r;
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}
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return 1;
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}
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static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
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[HANDLE_IGNORE] = "ignore",
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[HANDLE_POWEROFF] = "poweroff",
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[HANDLE_REBOOT] = "reboot",
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[HANDLE_HALT] = "halt",
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[HANDLE_KEXEC] = "kexec",
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[HANDLE_SUSPEND] = "suspend",
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[HANDLE_HIBERNATE] = "hibernate",
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[HANDLE_HYBRID_SLEEP] = "hybrid-sleep",
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[HANDLE_LOCK] = "lock"
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};
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DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction);
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DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting");
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