systemd/0032-core-make-sure-to-clos...

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From 68239871c255877a0f0ba9814b399e9adc01d186 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 28 Apr 2016 17:09:50 +0200
Subject: [PATCH 1/8] core: make sure to close connection fd when we fail to
activate a per-connection service
Fixes: #2993 #2691
(cherry picked from commit 3e7a1f50e473a374e1657d2051237e2db04c4db2)
Resolves: #1310608
---
src/core/service.c | 2 +-
src/core/service.h | 1 +
src/core/socket.c | 6 +++++-
3 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/core/service.c b/src/core/service.c
index ac7e41d..01d6582 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -181,7 +181,7 @@ static int service_set_main_pid(Service *s, pid_t pid) {
return 0;
}
-static void service_close_socket_fd(Service *s) {
+void service_close_socket_fd(Service *s) {
assert(s);
s->socket_fd = asynchronous_close(s->socket_fd);
diff --git a/src/core/service.h b/src/core/service.h
index d342e00..20bfd06 100644
--- a/src/core/service.h
+++ b/src/core/service.h
@@ -200,6 +200,7 @@ struct Service {
extern const UnitVTable service_vtable;
int service_set_socket_fd(Service *s, int fd, struct Socket *socket, bool selinux_context_net);
+void service_close_socket_fd(Service *s);
const char* service_restart_to_string(ServiceRestart i) _const_;
ServiceRestart service_restart_from_string(const char *s) _pure_;
diff --git a/src/core/socket.c b/src/core/socket.c
index 976687a..60906b1 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -1994,8 +1994,12 @@ static void socket_enter_running(Socket *s, int cfd) {
s->n_connections ++;
r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT(service), JOB_REPLACE, &error, NULL);
- if (r < 0)
+ if (r < 0) {
+ /* We failed to activate the new service, but it still exists. Let's make sure the service
+ * closes and forgets the connection fd again, immediately. */
+ service_close_socket_fd(service);
goto fail;
+ }
/* Notify clients about changed counters */
unit_add_to_dbus_queue(UNIT(s));
--
2.7.4