[dm-devel] [PATCH 26/35] multipathd: uxlsnr: check root on connection startup

[mwilck at suse.com]

From: Martin Wilck <mwilck at suse.com>

The SO_PEERCRED socket option returns "the credentials that were
in effect at the time of the call to connect(2)" (see unix(7)).
So we might as well fetch these credentials at that time.

Signed-off-by: Martin Wilck <mwilck at suse.com>
---
 multipathd/uxlsnr.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/multipathd/uxlsnr.c b/multipathd/uxlsnr.c
index 9a945ea..9cf6964 100644
--- a/multipathd/uxlsnr.c
+++ b/multipathd/uxlsnr.c
@@ -92,8 +92,6 @@ static struct pollfd *polls;
 static int notify_fd = -1;
 static char *watch_config_dir;
 
-static bool _socket_client_is_root(int fd);
-
 static bool _socket_client_is_root(int fd)
 {
 	socklen_t len = 0;
@@ -132,6 +130,7 @@ static void new_client(int ux_sock)
 	INIT_LIST_HEAD(&c->node);
 	c->fd = fd;
 	c->state = CLT_RECV;
+	c->is_root = _socket_client_is_root(c->fd);
 
 	/* put it in our linked list */
 	pthread_mutex_lock(&client_lock);
-- 
2.33.0