systemd/0809-Revert-core-manager-export-manager_dbus_is_running-a.patch

From 07ec0810cf4dc638c138735eccda78e37ff42be7 Mon Sep 17 00:00:00 2001
From: Mike Yuan <me@yhndnzj.com>
Date: Thu, 11 May 2023 18:55:43 +0800
Subject: [PATCH] Revert "core/manager: export manager_dbus_is_running" and
 partially "core: refuse dbus activation if dbus is not running"

This reverts commit e8863150653931ae2ffc91757623f179ce763628
and partially 53964fd26b4a01191609ffc064aa8ccccd28e377.

Specifically, changes to signal_activation_request()
is not desired.

(cherry picked from commit 2b680534c9667341551b39f4cc9735cd6e8c014e)

Resolves: RHEL-40878
---
 src/core/dbus.c    | 5 +++--
 src/core/manager.c | 8 ++++----
 src/core/manager.h | 5 -----
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/src/core/dbus.c b/src/core/dbus.c
index b4564f79a2..1431e079c2 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -160,8 +160,9 @@ static int signal_activation_request(sd_bus_message *message, void *userdata, sd
                 return 0;
         }
 
-        if (!manager_dbus_is_running(m)) {
-                r = sd_bus_error_set(&error, BUS_ERROR_SHUTTING_DOWN, "Refusing activation, D-Bus is not running.");
+        if (manager_unit_inactive_or_pending(m, SPECIAL_DBUS_SOCKET) ||
+            manager_unit_inactive_or_pending(m, SPECIAL_DBUS_SERVICE)) {
+                r = sd_bus_error_set(&error, BUS_ERROR_SHUTTING_DOWN, "Refusing activation, D-Bus is shutting down.");
                 goto failed;
         }
 
diff --git a/src/core/manager.c b/src/core/manager.c
index fd6e711c65..b44c7785cf 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -1680,7 +1680,7 @@ static void manager_distribute_fds(Manager *m, FDSet *fds) {
         }
 }
 
-bool manager_dbus_is_running_full(Manager *m, bool deserialized) {
+static bool manager_dbus_is_running(Manager *m, bool deserialized) {
         Unit *u;
 
         assert(m);
@@ -1722,7 +1722,7 @@ static void manager_setup_bus(Manager *m) {
                 (void) bus_init_system(m);
 
         /* Let's connect to the bus now, but only if the unit is supposed to be up */
-        if (manager_dbus_is_running_full(m, MANAGER_IS_RELOADING(m))) {
+        if (manager_dbus_is_running(m, MANAGER_IS_RELOADING(m))) {
                 (void) bus_init_api(m);
 
                 if (MANAGER_IS_SYSTEM(m))
@@ -2815,7 +2815,7 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t
                 break;
 
         case SIGUSR1:
-                if (manager_dbus_is_running(m)) {
+                if (manager_dbus_is_running(m, false)) {
                         log_info("Trying to reconnect to bus...");
 
                         (void) bus_init_api(m);
@@ -3930,7 +3930,7 @@ void manager_recheck_dbus(Manager *m) {
         if (MANAGER_IS_RELOADING(m))
                 return; /* don't check while we are reloading… */
 
-        if (manager_dbus_is_running(m)) {
+        if (manager_dbus_is_running(m, false)) {
                 (void) bus_init_api(m);
 
                 if (MANAGER_IS_SYSTEM(m))
diff --git a/src/core/manager.h b/src/core/manager.h
index 1479813de4..86e7e40989 100644
--- a/src/core/manager.h
+++ b/src/core/manager.h
@@ -491,11 +491,6 @@ DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
 
 int manager_startup(Manager *m, FILE *serialization, FDSet *fds, const char *root);
 
-bool manager_dbus_is_running_full(Manager *m, bool deserialized);
-static inline bool manager_dbus_is_running(Manager *m) {
-        return manager_dbus_is_running_full(m, false);
-}
-
 Job *manager_get_job(Manager *m, uint32_t id);
 Unit *manager_get_unit(Manager *m, const char *name);