diff mbox series

[v3,10/10] multipathd: honor MULTIPATH_SOCKET_NAME environment variable

Message ID 20250214221011.136762-11-mwilck@suse.com (mailing list archive)
State New, archived
Headers show
Series multipath-tools: provide pathname and abstract sockets | expand

Commit Message

Martin Wilck Feb. 14, 2025, 10:10 p.m. UTC 
If multipathd is started via socket activation, it will obtain
sockets from systemd. The names of these sockets, and whether
the abstract and / or pathname socket is created, is configurable
in the systemd unit file.

Add support for passing a socket name via the environment, so that
it's possible to configure the socket name at runtime even without
socket activation. In this case, only this single socket will be created.
If creating the socket fails, multipathd startup will fail, too.

Signed-off-by: Martin Wilck <mwilck@suse.com>
---
 multipathd/main.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/multipathd/main.c b/multipathd/main.c
index b41c181..3468b21 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -1895,11 +1895,16 @@  uxlsnrloop (void * ap)
 {
 	long ux_sock[2] = {-1, -1};
 	int num;
+	const char *env_name = getenv("MULTIPATH_SOCKET_NAME");
 
 	pthread_cleanup_push(rcu_unregister, NULL);
 	rcu_register_thread();
 
 	num = get_systemd_sockets(ux_sock);
+	if (num < 1 && env_name != NULL) {
+		ux_sock[0] = ux_socket_listen(env_name);
+		num = 1;
+	}
 	if (num < 1) {
 		ux_sock[0] = ux_socket_listen(ABSTRACT_SOCKET);
 		ux_sock[1] = ux_socket_listen(PATHNAME_SOCKET);