***/
#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
-#include <systemd/sd-messages.h>
-
+#include "sd-messages.h"
+#include "log.h"
+#include "util.h"
+#include "strv.h"
+#include "fileio.h"
+#include "build.h"
+#include "def.h"
#include "conf-parser.h"
-#include "special.h"
-#include "dbus-common.h"
-#include "logind-action.h"
#include "sleep-config.h"
+#include "bus-error.h"
+#include "bus-util.h"
+#include "logind-action.h"
+#include "formats-util.h"
int manager_handle_action(
Manager *m,
[HANDLE_HYBRID_SLEEP] = "Hibernating and suspending..."
};
- 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
- };
-
- DBusError error;
- int r;
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
InhibitWhat inhibit_operation;
+ Inhibitor *offending = NULL;
bool supported;
+ int r;
assert(m);
- if (m->action_what) {
- log_debug("Action already in progress, ignoring.");
- return -EALREADY;
- }
-
/* If the key handling is turned off, don't do anything */
if (handle == HANDLE_IGNORE) {
log_debug("Refusing operation, as it is turned off.");
return 0;
}
- if (handle == HANDLE_SUSPEND)
- supported = can_sleep("suspend") > 0;
- else if (handle == HANDLE_HIBERNATE)
- supported = can_sleep("hibernate") > 0;
- else if (handle == HANDLE_HYBRID_SLEEP)
- supported = can_sleep("hybrid-sleep") > 0;
- else if (handle == HANDLE_KEXEC)
- supported = access("/sbin/kexec", X_OK) >= 0;
- else
- supported = true;
-
- if (!supported) {
- log_warning("Requested operation not supported, ignoring.");
- return -ENOTSUP;
+ 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)) {
+ if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) {
log_debug("Refusing operation, %s is inhibited.", 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("suspend") > 0;
+ else if (handle == HANDLE_HIBERNATE)
+ supported = can_sleep("hibernate") > 0;
+ else if (handle == HANDLE_HYBRID_SLEEP)
+ supported = can_sleep("hybrid-sleep") > 0;
+ else if (handle == HANDLE_KEXEC)
+ supported = access(KEXEC, X_OK) >= 0;
+ else
+ supported = true;
+
+ if (!supported) {
+ log_warning("Requested operation not supported, ignoring.");
+ return -EOPNOTSUPP;
+ }
+
+ if (m->action_what) {
+ log_debug("Action already in progress, ignoring.");
+ return -EALREADY;
+ }
+
inhibit_operation = handle == HANDLE_SUSPEND || handle == HANDLE_HIBERNATE || handle == HANDLE_HYBRID_SLEEP ? 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)) {
+ manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) {
+ _cleanup_free_ char *comm = NULL, *u = NULL;
+
+ 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 */
if (!is_edge) {
- log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_operation));
+ log_debug("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.",
+ inhibit_what_to_string(inhibit_operation),
+ offending->uid, strna(u),
+ offending->pid, strna(comm));
return 0;
}
- log_error("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_operation));
+ log_error("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.",
+ inhibit_what_to_string(inhibit_operation),
+ offending->uid, strna(u),
+ offending->pid, strna(comm));
+
warn_melody();
return -EPERM;
}
log_info("%s", message_table[handle]);
- dbus_error_init(&error);
- r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error);
+ r = bus_manager_shutdown_or_sleep_now_or_later(m, handle, inhibit_operation, &error);
if (r < 0) {
- log_error("Failed to execute operation: %s", bus_error_message(&error));
- dbus_error_free(&error);
+ log_error("Failed to execute operation: %s", bus_error_message(&error, r));
return r;
}
return 1;
}
+static int run_helper(const char *helper) {
+ int pid = fork();
+ if (pid < 0) {
+ return log_error_errno(errno, "Failed to fork: %m");
+ }
+
+ if (pid == 0) {
+ /* Child */
+
+ close_all_fds(NULL, 0);
+
+ execlp(helper, helper, NULL);
+ log_error_errno(errno, "Failed to execute %s: %m", helper);
+ _exit(EXIT_FAILURE);
+ }
+
+ return wait_for_terminate_and_warn(helper, pid, true);
+}
+
+static int write_mode(char **modes) {
+ int r = 0;
+ char **mode;
+
+ STRV_FOREACH(mode, modes) {
+ int k;
+
+ k = write_string_file("/sys/power/disk", *mode);
+ if (k == 0)
+ return 0;
+
+ log_debug_errno(k, "Failed to write '%s' to /sys/power/disk: %m",
+ *mode);
+ if (r == 0)
+ r = k;
+ }
+
+ if (r < 0)
+ log_error_errno(r, "Failed to write mode to /sys/power/disk: %m");
+
+ return r;
+}
+
+static int write_state(FILE **f, char **states) {
+ char **state;
+ int r = 0;
+
+ STRV_FOREACH(state, states) {
+ int k;
+
+ k = write_string_stream(*f, *state);
+ if (k == 0)
+ return 0;
+ log_debug_errno(k, "Failed to write '%s' to /sys/power/state: %m",
+ *state);
+ if (r == 0)
+ r = k;
+
+ fclose(*f);
+ *f = fopen("/sys/power/state", "we");
+ if (!*f)
+ return log_error_errno(errno, "Failed to open /sys/power/state: %m");
+ }
+
+ return r;
+}
+
+static int do_sleep(const char *arg_verb, const char **modes, const char **states) {
+ char *arguments[] = {
+ NULL,
+ (char*) "pre",
+ (char*) arg_verb,
+ NULL
+ };
+ static const char* const dirs[] = { SYSTEM_SLEEP_PATH, NULL};
+ int r;
+ _cleanup_fclose_ FILE *f = NULL;
+
+ /* This file is opened first, so that if we hit an error,
+ * we can abort before modifying any state. */
+ f = fopen("/sys/power/state", "we");
+ if (!f)
+ return log_error_errno(errno, "Failed to open /sys/power/state: %m");
+
+ /* Configure the hibernation mode */
+ r = write_mode(modes);
+ if (r < 0)
+ return r;
+
+ execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
+
+ log_struct(LOG_INFO,
+ LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_START),
+ LOG_MESSAGE("Suspending system..."),
+ "SLEEP=%s", arg_verb,
+ NULL);
+
+ r = write_state(&f, states);
+ if (r < 0)
+ return r;
+
+ log_struct(LOG_INFO,
+ LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_STOP),
+ LOG_MESSAGE("System resumed."),
+ "SLEEP=%s", arg_verb,
+ NULL);
+
+ arguments[1] = (char*) "post";
+ execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
+
+ return r;
+}
+
+int shutdown_or_sleep(Manager *m, HandleAction action) {
+ switch (action) {
+ case HANDLE_POWEROFF:
+ return run_helper(HALT);
+ case HANDLE_REBOOT:
+ return run_helper(REBOOT);
+ case HANDLE_HALT:
+ return run_helper(HALT);
+ case HANDLE_KEXEC:
+ return run_helper(KEXEC);
+ case HANDLE_SUSPEND:
+ return do_sleep("suspend", m->suspend_mode, m->suspend_state);
+ case HANDLE_HIBERNATE:
+ return do_sleep("hibernate", m->hibernate_mode, m->hibernate_state);
+ case HANDLE_HYBRID_SLEEP:
+ return do_sleep("hybrid-sleep", m->hybrid_sleep_mode, m->hybrid_sleep_state);
+ default:
+ return -EINVAL;
+ }
+}
+
static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
[HANDLE_IGNORE] = "ignore",
[HANDLE_POWEROFF] = "poweroff",
~ianmdlvl / elogind.git / blobdiff