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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <unistd.h>
#include "sd-messages.h"
#include "alloc-util.h"
#include "bus-error.h"
#include "bus-util.h"
#include "conf-parser.h"
#include "format-util.h"
#include "logind-action.h"
#include "logind-dbus.h"
#include "logind-session-dbus.h"
#include "process-util.h"
#include "special.h"
#include "string-table.h"
#include "terminal-util.h"
#include "user-util.h"
static const HandleActionData handle_action_data_table[_HANDLE_ACTION_MAX] = {
[HANDLE_POWEROFF] = {
.handle = HANDLE_POWEROFF,
.target = SPECIAL_POWEROFF_TARGET,
.inhibit_what = INHIBIT_SHUTDOWN,
.polkit_action = "org.freedesktop.login1.power-off",
.polkit_action_multiple_sessions = "org.freedesktop.login1.power-off-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.power-off-ignore-inhibit",
.sleep_operation = _SLEEP_OPERATION_INVALID,
.message_id = SD_MESSAGE_SHUTDOWN_STR,
.message = "System is powering down",
.log_verb = "power-off",
},
[HANDLE_REBOOT] = {
.handle = HANDLE_REBOOT,
.target = SPECIAL_REBOOT_TARGET,
.inhibit_what = INHIBIT_SHUTDOWN,
.polkit_action = "org.freedesktop.login1.reboot",
.polkit_action_multiple_sessions = "org.freedesktop.login1.reboot-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.reboot-ignore-inhibit",
.sleep_operation = _SLEEP_OPERATION_INVALID,
.message_id = SD_MESSAGE_SHUTDOWN_STR,
.message = "System is rebooting",
.log_verb = "reboot",
},
[HANDLE_HALT] = {
.handle = HANDLE_HALT,
.target = SPECIAL_HALT_TARGET,
.inhibit_what = INHIBIT_SHUTDOWN,
.polkit_action = "org.freedesktop.login1.halt",
.polkit_action_multiple_sessions = "org.freedesktop.login1.halt-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.halt-ignore-inhibit",
.sleep_operation = _SLEEP_OPERATION_INVALID,
.message_id = SD_MESSAGE_SHUTDOWN_STR,
.message = "System is halting",
.log_verb = "halt",
},
[HANDLE_KEXEC] = {
.handle = HANDLE_KEXEC,
.target = SPECIAL_KEXEC_TARGET,
.inhibit_what = INHIBIT_SHUTDOWN,
.polkit_action = "org.freedesktop.login1.reboot",
.polkit_action_multiple_sessions = "org.freedesktop.login1.reboot-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.reboot-ignore-inhibit",
.sleep_operation = _SLEEP_OPERATION_INVALID,
.message_id = SD_MESSAGE_SHUTDOWN_STR,
.message = "System is rebooting with kexec",
.log_verb = "kexec",
},
[HANDLE_SUSPEND] = {
.handle = HANDLE_SUSPEND,
.target = SPECIAL_SUSPEND_TARGET,
.inhibit_what = INHIBIT_SLEEP,
.polkit_action = "org.freedesktop.login1.suspend",
.polkit_action_multiple_sessions = "org.freedesktop.login1.suspend-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.suspend-ignore-inhibit",
.sleep_operation = SLEEP_SUSPEND,
},
[HANDLE_HIBERNATE] = {
.handle = HANDLE_HIBERNATE,
.target = SPECIAL_HIBERNATE_TARGET,
.inhibit_what = INHIBIT_SLEEP,
.polkit_action = "org.freedesktop.login1.hibernate",
.polkit_action_multiple_sessions = "org.freedesktop.login1.hibernate-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.hibernate-ignore-inhibit",
.sleep_operation = SLEEP_HIBERNATE,
},
[HANDLE_HYBRID_SLEEP] = {
.handle = HANDLE_HYBRID_SLEEP,
.target = SPECIAL_HYBRID_SLEEP_TARGET,
.inhibit_what = INHIBIT_SLEEP,
.polkit_action = "org.freedesktop.login1.hibernate",
.polkit_action_multiple_sessions = "org.freedesktop.login1.hibernate-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.hibernate-ignore-inhibit",
.sleep_operation = SLEEP_HYBRID_SLEEP,
},
[HANDLE_SUSPEND_THEN_HIBERNATE] = {
.handle = HANDLE_SUSPEND_THEN_HIBERNATE,
.target = SPECIAL_SUSPEND_THEN_HIBERNATE_TARGET,
.inhibit_what = INHIBIT_SLEEP,
.polkit_action = "org.freedesktop.login1.hibernate",
.polkit_action_multiple_sessions = "org.freedesktop.login1.hibernate-multiple-sessions",
.polkit_action_ignore_inhibit = "org.freedesktop.login1.hibernate-ignore-inhibit",
.sleep_operation = SLEEP_SUSPEND_THEN_HIBERNATE,
},
[HANDLE_FACTORY_RESET] = {
.handle = HANDLE_FACTORY_RESET,
.target = SPECIAL_FACTORY_RESET_TARGET,
.inhibit_what = _INHIBIT_WHAT_INVALID,
.sleep_operation = _SLEEP_OPERATION_INVALID,
.message_id = SD_MESSAGE_FACTORY_RESET_STR,
.message = "System is performing factory reset",
},
};
const HandleActionData* handle_action_lookup(HandleAction action) {
if (action < 0 || (size_t) action >= ELEMENTSOF(handle_action_data_table))
return NULL;
return &handle_action_data_table[action];
}
int manager_handle_action(
Manager *m,
InhibitWhat inhibit_key,
HandleAction handle,
bool ignore_inhibited,
bool is_edge) {
static const char * const message_table[_HANDLE_ACTION_MAX] = {
[HANDLE_POWEROFF] = "Powering off...",
[HANDLE_REBOOT] = "Rebooting...",
[HANDLE_HALT] = "Halting...",
[HANDLE_KEXEC] = "Rebooting via kexec...",
[HANDLE_SUSPEND] = "Suspending...",
[HANDLE_HIBERNATE] = "Hibernating...",
[HANDLE_HYBRID_SLEEP] = "Hibernating and suspending...",
[HANDLE_SUSPEND_THEN_HIBERNATE] = "Suspending, then hibernating...",
[HANDLE_FACTORY_RESET] = "Performing factory reset...",
};
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
InhibitWhat inhibit_operation;
Inhibitor *offending = NULL;
bool supported;
int r;
assert(m);
/* If the key handling is turned off, don't do anything */
if (handle == HANDLE_IGNORE) {
log_debug("Handling of %s (%s) is disabled, taking no action.",
inhibit_key == 0 ? "idle timeout" : inhibit_what_to_string(inhibit_key),
is_edge ? "edge" : "level");
return 0;
}
if (inhibit_key == INHIBIT_HANDLE_LID_SWITCH) {
/* If the last system suspend or startup is too close,
* let's not suspend for now, to give USB docking
* stations some time to settle so that we can
* properly watch its displays. */
if (m->lid_switch_ignore_event_source) {
log_debug("Ignoring lid switch request, system startup or resume too close.");
return 0;
}
}
/* If the key handling is inhibited, don't do anything */
if (inhibit_key > 0) {
if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) {
log_debug("Refusing %s operation, %s is inhibited.",
handle_action_to_string(handle),
inhibit_what_to_string(inhibit_key));
return 0;
}
}
/* Locking is handled differently from the rest. */
if (handle == HANDLE_LOCK) {
if (!is_edge)
return 0;
log_info("Locking sessions...");
session_send_lock_all(m, true);
return 1;
}
if (handle == HANDLE_SUSPEND)
supported = can_sleep(SLEEP_SUSPEND) > 0;
else if (handle == HANDLE_HIBERNATE)
supported = can_sleep(SLEEP_HIBERNATE) > 0;
else if (handle == HANDLE_HYBRID_SLEEP)
supported = can_sleep(SLEEP_HYBRID_SLEEP) > 0;
else if (handle == HANDLE_SUSPEND_THEN_HIBERNATE)
supported = can_sleep(SLEEP_SUSPEND_THEN_HIBERNATE) > 0;
else if (handle == HANDLE_KEXEC)
supported = access(KEXEC, X_OK) >= 0;
else
supported = true;
if (!supported && IN_SET(handle, HANDLE_HIBERNATE, HANDLE_HYBRID_SLEEP, HANDLE_SUSPEND_THEN_HIBERNATE)) {
supported = can_sleep(SLEEP_SUSPEND) > 0;
if (supported) {
log_notice("Requested %s operation is not supported, using regular suspend instead.",
handle_action_to_string(handle));
handle = HANDLE_SUSPEND;
}
}
if (!supported)
return log_warning_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
"Requested %s operation not supported, ignoring.", handle_action_to_string(handle));
if (m->delayed_action)
return log_debug_errno(SYNTHETIC_ERRNO(EALREADY),
"Action already in progress (%s), ignoring requested %s operation.",
inhibit_what_to_string(m->delayed_action->inhibit_what),
handle_action_to_string(handle));
inhibit_operation = handle_action_lookup(handle)->inhibit_what;
/* If the actual operation is inhibited, warn and fail */
if (!ignore_inhibited &&
manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) {
_cleanup_free_ char *comm = NULL, *u = NULL;
(void) get_process_comm(offending->pid, &comm);
u = uid_to_name(offending->uid);
/* If this is just a recheck of the lid switch then don't warn about anything */
log_full(is_edge ? LOG_ERR : LOG_DEBUG,
"Refusing %s operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.",
handle_action_to_string(handle),
inhibit_what_to_string(inhibit_operation),
offending->uid, strna(u),
offending->pid, strna(comm));
return is_edge ? -EPERM : 0;
}
log_info("%s", message_table[handle]);
r = bus_manager_shutdown_or_sleep_now_or_later(m, handle_action_lookup(handle), &error);
if (r < 0)
return log_error_errno(r, "Failed to execute %s operation: %s",
handle_action_to_string(handle),
bus_error_message(&error, r));
return 1;
}
static const char* const handle_action_verb_table[_HANDLE_ACTION_MAX] = {
[HANDLE_IGNORE] = "do nothing",
[HANDLE_POWEROFF] = "power off",
[HANDLE_REBOOT] = "reboot",
[HANDLE_HALT] = "halt",
[HANDLE_KEXEC] = "kexec",
[HANDLE_SUSPEND] = "suspend",
[HANDLE_HIBERNATE] = "hibernate",
[HANDLE_HYBRID_SLEEP] = "enter hybrid sleep",
[HANDLE_SUSPEND_THEN_HIBERNATE] = "suspend and later hibernate",
[HANDLE_FACTORY_RESET] = "perform a factory reset",
[HANDLE_LOCK] = "be locked",
};
DEFINE_STRING_TABLE_LOOKUP_TO_STRING(handle_action_verb, HandleAction);
static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
[HANDLE_IGNORE] = "ignore",
[HANDLE_POWEROFF] = "poweroff",
[HANDLE_REBOOT] = "reboot",
[HANDLE_HALT] = "halt",
[HANDLE_KEXEC] = "kexec",
[HANDLE_SUSPEND] = "suspend",
[HANDLE_HIBERNATE] = "hibernate",
[HANDLE_HYBRID_SLEEP] = "hybrid-sleep",
[HANDLE_SUSPEND_THEN_HIBERNATE] = "suspend-then-hibernate",
[HANDLE_FACTORY_RESET] = "factory-reset",
[HANDLE_LOCK] = "lock",
};
DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction);
DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting");
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