| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <unistd.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 "sleep-config.h" |
| #include "special.h" |
| #include "string-table.h" |
| #include "terminal-util.h" |
| #include "user-util.h" |
| |
| const char* manager_target_for_action(HandleAction handle) { |
| static const char * const target_table[_HANDLE_ACTION_MAX] = { |
| [HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET, |
| [HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET, |
| [HANDLE_HALT] = SPECIAL_HALT_TARGET, |
| [HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET, |
| [HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET, |
| [HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET, |
| [HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET, |
| [HANDLE_SUSPEND_THEN_HIBERNATE] = SPECIAL_SUSPEND_THEN_HIBERNATE_TARGET, |
| }; |
| |
| assert(handle >= 0); |
| if (handle < (ssize_t) ELEMENTSOF(target_table)) |
| return target_table[handle]; |
| return NULL; |
| } |
| |
| 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...", |
| }; |
| |
| _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| InhibitWhat inhibit_operation; |
| Inhibitor *offending = NULL; |
| bool supported; |
| const char *target; |
| 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->action_what > 0) |
| return log_debug_errno(SYNTHETIC_ERRNO(EALREADY), |
| "Action already in progress (%s), ignoring requested %s operation.", |
| inhibit_what_to_string(m->action_what), |
| handle_action_to_string(handle)); |
| |
| assert_se(target = manager_target_for_action(handle)); |
| |
| inhibit_operation = IN_SET(handle, HANDLE_SUSPEND, HANDLE_HIBERNATE, |
| HANDLE_HYBRID_SLEEP, |
| HANDLE_SUSPEND_THEN_HIBERNATE) ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN; |
| |
| /* 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, target, inhibit_operation, &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_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_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"); |
