Merge 0e54562082 into f6793bbcf0

The most common case of block=true, ignore_inactive=false is mapped to flags=0.

For https://github.com/systemd/systemd/issues/34091.

src/login/logind-action.c

@@ -234,7 +234,7 @@ static int handle_action_execute(
         /* If the actual operation is inhibited, warn and fail */
         if (inhibit_what_is_valid(inhibit_operation) &&
             !ignore_inhibited &&
-            manager_is_inhibited(m, inhibit_operation, /* block= */ true, NULL, false, false, 0, &offending)) {
+            manager_is_inhibited(m, inhibit_operation, NULL, /* flags= */ 0, UID_INVALID, &offending)) {
                 _cleanup_free_ char *comm = NULL, *u = NULL;
 
                 (void) pidref_get_comm(&offending->pid, &comm);
@@ -372,7 +372,7 @@ int manager_handle_action(
 
         /* If the key handling is inhibited, don't do anything */
         if (inhibit_key > 0) {
-                if (manager_is_inhibited(m, inhibit_key, /* block= */ true, NULL, true, false, 0, NULL)) {
+                if (manager_is_inhibited(m, inhibit_key, NULL, MANAGER_IS_INHIBITED_IGNORE_INACTIVE, UID_INVALID, NULL)) {
                         log_debug("Refusing %s operation, %s is inhibited.",
                                   handle_action_to_string(handle),
                                   inhibit_what_to_string(inhibit_key));

src/login/logind-core.c

@@ -411,7 +411,7 @@ int manager_get_idle_hint(Manager *m, dual_timestamp *t) {
 
         assert(m);
 
-        idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, /* block= */ true, t, false, false, 0, NULL);
+        idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, t, /* flags= */ 0, UID_INVALID, NULL);
 
         HASHMAP_FOREACH(s, m->sessions) {
                 dual_timestamp k;

src/login/logind-dbus.c

@@ -1931,7 +1931,12 @@ int manager_dispatch_delayed(Manager *manager, bool timeout) {
         if (!manager->delayed_action || manager->action_job)
                 return 0;
 
-        if (manager_is_inhibited(manager, manager->delayed_action->inhibit_what, /* block= */ false, NULL, false, false, 0, &offending)) {
+        if (manager_is_inhibited(manager,
+                                 manager->delayed_action->inhibit_what,
+                                 NULL,
+                                 MANAGER_IS_INHIBITED_CHECK_DELAY,
+                                 UID_INVALID,
+                                 &offending)) {
                 _cleanup_free_ char *comm = NULL, *u = NULL;
 
                 if (!timeout)
@@ -2033,7 +2038,7 @@ int bus_manager_shutdown_or_sleep_now_or_later(
 
         delayed =
                 m->inhibit_delay_max > 0 &&
-                manager_is_inhibited(m, a->inhibit_what, /* block= */ false, NULL, false, false, 0, NULL);
+                manager_is_inhibited(m, a->inhibit_what, NULL, MANAGER_IS_INHIBITED_CHECK_DELAY, UID_INVALID, NULL);
 
         if (delayed)
                 /* Shutdown is delayed, keep in mind what we
@@ -2077,7 +2082,7 @@ static int verify_shutdown_creds(
                 return r;
 
         multiple_sessions = r > 0;
-        blocked = manager_is_inhibited(m, a->inhibit_what, /* block= */ true, NULL, false, true, uid, &offending);
+        blocked = manager_is_inhibited(m, a->inhibit_what, NULL, /* flags= */ 0, uid, &offending);
         interactive = flags & SD_LOGIND_INTERACTIVE;
 
         if (multiple_sessions) {
@@ -2820,7 +2825,7 @@ static int method_can_shutdown_or_sleep(
                 return r;
 
         multiple_sessions = r > 0;
-        blocked = manager_is_inhibited(m, a->inhibit_what, /* block= */ true, NULL, false, true, uid, NULL);
+        blocked = manager_is_inhibited(m, a->inhibit_what, NULL, /* flags= */ 0, uid, NULL);
 
         if (check_unit_state && a->target) {
                 _cleanup_free_ char *load_state = NULL;

src/login/logind-inhibit.c

@@ -399,11 +399,9 @@ static int pidref_is_active_session(Manager *m, const PidRef *pid) {
 bool manager_is_inhibited(
                 Manager *m,
                 InhibitWhat w,
-                bool block,
                 dual_timestamp *since,
-                bool ignore_inactive,
-                bool ignore_uid,
-                uid_t uid,
+                ManagerIsInhibitedFlags flags,
+                uid_t uid_to_ignore,
                 Inhibitor **ret_offending) {
 
         Inhibitor *i, *offending = NULL;
@@ -421,18 +419,19 @@ bool manager_is_inhibited(
                 if (!(i->what & w))
                         continue;
 
-                if ((block && !IN_SET(i->mode, INHIBIT_BLOCK, INHIBIT_BLOCK_WEAK)) ||
-                    (!block && i->mode != INHIBIT_DELAY))
+                if ((flags & MANAGER_IS_INHIBITED_CHECK_DELAY) != (i->mode == INHIBIT_DELAY))
                         continue;
 
-                if (ignore_inactive && pidref_is_active_session(m, &i->pid) <= 0)
+                if ((flags & MANAGER_IS_INHIBITED_IGNORE_INACTIVE) &&
+                    pidref_is_active_session(m, &i->pid) <= 0)
                         continue;
 
-                if (i->mode == INHIBIT_BLOCK_WEAK && ignore_uid && i->uid == uid)
+                if (i->mode == INHIBIT_BLOCK_WEAK &&
+                    uid_is_valid(uid_to_ignore) &&
+                    uid_to_ignore == i->uid)
                         continue;
 
-                if (!inhibited ||
-                    i->since.monotonic < ts.monotonic)
+                if (!inhibited || i->since.monotonic < ts.monotonic)
                         ts = i->since;
 
                 inhibited = true;

src/login/logind-inhibit.h

@@ -67,7 +67,20 @@ int inhibitor_create_fifo(Inhibitor *i);
 bool inhibitor_is_orphan(Inhibitor *i);
 
 InhibitWhat manager_inhibit_what(Manager *m, InhibitMode mode);
-bool manager_is_inhibited(Manager *m, InhibitWhat w, bool block, dual_timestamp *since, bool ignore_inactive, bool ignore_uid, uid_t uid, Inhibitor **offending);
+
+typedef enum ManagerIsInhibitedFlags {
+        MANAGER_IS_INHIBITED_CHECK_DELAY     = 1 << 0,  /* When set, we only check delay inhibitors.
+                                                         * Otherwise, we only check block inhibitors. */
+        MANAGER_IS_INHIBITED_IGNORE_INACTIVE = 1 << 1,  /* When set, ignore inactive sessions. */
+} ManagerIsInhibitedFlags;
+
+bool manager_is_inhibited(
+                Manager *m,
+                InhibitWhat w,
+                dual_timestamp *since,
+                ManagerIsInhibitedFlags flags,
+                uid_t uid_to_ignore,
+                Inhibitor **ret_offending);
 
 static inline bool inhibit_what_is_valid(InhibitWhat w) {
         return w > 0 && w < _INHIBIT_WHAT_MAX;