From: Christian Hesse <mail@eworm.de>
Date: Wed, 25 Nov 2015 07:46:43 +0000 (+0100)
Subject: networkd: link - do not drop config for loopback device
X-Git-Tag: v229~271^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F2024%2Fhead;p=thirdparty%2Fsystemd.git

networkd: link - do not drop config for loopback device

Commit 5e5b137a (networkd: link - drop foreign config when configuring
link) introduced a regression where addresses (including 127.0.0.1) are
removed from loopback device.
Do not handle loopback device when removing foreign configs.

Signed-off-by: Christian Hesse <mail@eworm.de>
---

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 64a4b74e151..a9d91b07f60 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -2040,9 +2040,13 @@ static int link_configure(Link *link) {
         assert(link->network);
         assert(link->state == LINK_STATE_PENDING);
 
-        r = link_drop_foreign_config(link);
-        if (r < 0)
-                return r;
+        /* Drop foreign config, but ignore loopback device.
+         * We do not want to remove loopback address. */
+        if (!(link->flags & IFF_LOOPBACK)) {
+                r = link_drop_foreign_config(link);
+                if (r < 0)
+                        return r;
+        }
 
         r = link_set_bridge_fdb(link);
         if (r < 0)