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systemd/0810-manager-fix-reloading-in-reload-or-restart-marked.patch
Jan Macku 75aa201631 systemd-252-37 
Resolves: RHEL-13159,RHEL-20322,RHEL-27512,RHEL-30372,RHEL-31070,RHEL-31219,RHEL-33890,RHEL-35703,RHEL-38864,RHEL-40878,RHEL-6589
2024-06-13 16:16:12 +02:00

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From 758cd9ddac150342dbac49ed4c80c68531c169b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Fri, 28 Jul 2023 17:54:59 +0200
Subject: [PATCH] manager: fix reloading in reload-or-restart --marked
bus_unit_queue_job_one has two callers:
- bus_unit_queue_job which would do the appropriate transormations
to turn JOB_TRY_RESTART into JOB_TRY_RELOAD,
- and method_enqueue_marked_jobs which did not.
In effect, method_enqueue_marked_jobs() would queue restart jobs for
units which has Markers= needs-reload or needs-restart.
When the chunk of code which does the transformations is moved from
bus_unit_queue_job to bus_unit_queue_job_one, there is no change for
bus_unit_queue_job, and method_enqueue_marked_jobs is fixed.
The additional checks that are done seem reasonable to do from
method_enqueue_marked_jobs: we shouldn't be restarting units which are
configured to not allow that, or force unwanted start of dbus-broker.
(cherry picked from commit 8ea8e23f4013dbc4f4a66c81eb786f0505434f2e)
Resolves: RHEL-40878
---
src/core/dbus-unit.c | 82 ++++++++++++++++++++++----------------------
1 file changed, 41 insertions(+), 41 deletions(-)
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index 49eacc977c..b45b3fdb53 100644
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -1736,6 +1736,47 @@ int bus_unit_queue_job_one(
Job *j, *a;
int r;
+ if (FLAGS_SET(flags, BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE) && unit_can_reload(u)) {
+ if (type == JOB_RESTART)
+ type = JOB_RELOAD_OR_START;
+ else if (type == JOB_TRY_RESTART)
+ type = JOB_TRY_RELOAD;
+ }
+
+ if (type == JOB_STOP &&
+ IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_ERROR, UNIT_BAD_SETTING) &&
+ unit_active_state(u) == UNIT_INACTIVE)
+ return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id);
+
+ if ((type == JOB_START && u->refuse_manual_start) ||
+ (type == JOB_STOP && u->refuse_manual_stop) ||
+ (IN_SET(type, JOB_RESTART, JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)) ||
+ (type == JOB_RELOAD_OR_START && job_type_collapse(type, u) == JOB_START && u->refuse_manual_start))
+ return sd_bus_error_setf(error,
+ BUS_ERROR_ONLY_BY_DEPENDENCY,
+ "Operation refused, unit %s may be requested by dependency only (it is configured to refuse manual start/stop).",
+ u->id);
+
+ /* dbus-broker issues StartUnit for activation requests, and Type=dbus services automatically
+ * gain dependency on dbus.socket. Therefore, if dbus has a pending stop job, the new start
+ * job that pulls in dbus again would cause job type conflict. Let's avoid that by rejecting
+ * job enqueuing early.
+ *
+ * Note that unlike signal_activation_request(), we can't use unit_inactive_or_pending()
+ * here. StartUnit is a more generic interface, and thus users are allowed to use e.g. systemctl
+ * to start Type=dbus services even when dbus is inactive. */
+ if (type == JOB_START && u->type == UNIT_SERVICE && SERVICE(u)->type == SERVICE_DBUS)
+ FOREACH_STRING(dbus_unit, SPECIAL_DBUS_SOCKET, SPECIAL_DBUS_SERVICE) {
+ Unit *dbus;
+
+ dbus = manager_get_unit(u->manager, dbus_unit);
+ if (dbus && unit_stop_pending(dbus))
+ return sd_bus_error_setf(error,
+ BUS_ERROR_SHUTTING_DOWN,
+ "Operation for unit %s refused, D-Bus is shutting down.",
+ u->id);
+ }
+
if (FLAGS_SET(flags, BUS_UNIT_QUEUE_VERBOSE_REPLY)) {
affected = set_new(NULL);
if (!affected)
@@ -1828,47 +1869,6 @@ int bus_unit_queue_job(
if (r < 0)
return r;
- if (FLAGS_SET(flags, BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE) && unit_can_reload(u)) {
- if (type == JOB_RESTART)
- type = JOB_RELOAD_OR_START;
- else if (type == JOB_TRY_RESTART)
- type = JOB_TRY_RELOAD;
- }
-
- if (type == JOB_STOP &&
- IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_ERROR, UNIT_BAD_SETTING) &&
- unit_active_state(u) == UNIT_INACTIVE)
- return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id);
-
- if ((type == JOB_START && u->refuse_manual_start) ||
- (type == JOB_STOP && u->refuse_manual_stop) ||
- (IN_SET(type, JOB_RESTART, JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)) ||
- (type == JOB_RELOAD_OR_START && job_type_collapse(type, u) == JOB_START && u->refuse_manual_start))
- return sd_bus_error_setf(error,
- BUS_ERROR_ONLY_BY_DEPENDENCY,
- "Operation refused, unit %s may be requested by dependency only (it is configured to refuse manual start/stop).",
- u->id);
-
- /* dbus-broker issues StartUnit for activation requests, and Type=dbus services automatically
- * gain dependency on dbus.socket. Therefore, if dbus has a pending stop job, the new start
- * job that pulls in dbus again would cause job type conflict. Let's avoid that by rejecting
- * job enqueuing early.
- *
- * Note that unlike signal_activation_request(), we can't use unit_inactive_or_pending()
- * here. StartUnit is a more generic interface, and thus users are allowed to use e.g. systemctl
- * to start Type=dbus services even when dbus is inactive. */
- if (type == JOB_START && u->type == UNIT_SERVICE && SERVICE(u)->type == SERVICE_DBUS)
- FOREACH_STRING(dbus_unit, SPECIAL_DBUS_SOCKET, SPECIAL_DBUS_SERVICE) {
- Unit *dbus;
-
- dbus = manager_get_unit(u->manager, dbus_unit);
- if (dbus && unit_stop_pending(dbus))
- return sd_bus_error_setf(error,
- BUS_ERROR_SHUTTING_DOWN,
- "Operation for unit %s refused, D-Bus is shutting down.",
- u->id);
- }
-
r = sd_bus_message_new_method_return(message, &reply);
if (r < 0)
return r;
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