From 111bb8f93a2e936fc62fc2f34350b85c5f0000c8 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Tue, 22 Apr 2014 19:25:31 +0200
Subject: [PATCH] networkd: link - stop clients when failing

---
 src/network/networkd-link.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 392665a4d16..d9b38c1f6d1 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -151,6 +151,39 @@ static void link_enter_unmanaged(Link *link) {
         link_save(link);
 }
 
+static int link_stop_clients(Link *link) {
+        int r = 0, k;
+
+        assert(link);
+        assert(link->manager);
+        assert(link->manager->event);
+
+        if (!link->network)
+                return 0;
+
+        if (link->network->dhcp) {
+                assert(link->dhcp_client);
+
+                k = sd_dhcp_client_stop(link->dhcp_client);
+                if (k < 0) {
+                        log_warning_link(link, "Could not stop DHCPv4 client: %s", strerror(-r));
+                        r = k;
+                }
+        }
+
+        if (link->network->ipv4ll) {
+                assert(link->ipv4ll);
+
+                k = sd_ipv4ll_stop(link->ipv4ll);
+                if (k < 0) {
+                        log_warning_link(link, "Could not stop IPv4 link-local: %s", strerror(-r));
+                        r = k;
+                }
+        }
+
+        return r;
+}
+
 static void link_enter_failed(Link *link) {
         assert(link);
 
@@ -158,6 +191,8 @@ static void link_enter_failed(Link *link) {
 
         link->state = LINK_STATE_FAILED;
 
+        link_stop_clients(link);
+
         link_save(link);
 }