File kdump-net-0010-vlan-from-wicked.patch of Package kdump

From: Petr Tesarik <ptesarik@suse.com>
Date: Fri, 2 Sep 2016 08:44:14 +0200
Subject: Prefer wicked for VLAN configuration
References: bsc#980328
Patch-mainline: v0.8.16
Git-commit: 45b1327997bbe5656b231e2c28f99ebb07930c3c

If available, use wicked to obtain VLAN configuration.

Signed-off-by: Petr Tesarik <ptesarik@suse.com>
---
 init/setup-kdump.functions |   21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

--- a/init/setup-kdump.functions
+++ b/init/setup-kdump.functions
@@ -335,9 +335,24 @@ function kdump_link2vlan()
 function kdump_vlan_config()						   # {{{
 {
     local if="$1"
-    local vid=$(ip -d link show "$if" | kdump_link2vlan)
-    local slaves=$(kdump_list_slaves "$if")
-    if="${slaves# }"
+    local vid
+
+    # use wicked to read VLAN configuration, if possible
+    if [ -n "$(type -P wicked)" ]
+    then
+	eval $( wicked show-config |
+		wicked xpath --reference "/interface[name='$if']" \
+		    "vid=%{vlan/tag}; if=%{vlan/device}" )
+    fi
+
+    # fall back to sysfs
+    if [ -z "$vid" ]
+    then
+	vid=$(ip -d link show "$if" | kdump_link2vlan)
+	local slaves=$(kdump_list_slaves "$if")
+	if="${slaves# }"
+    fi
+
     kdump_ifname_config "$if"
     iface="$if.$vid"
     echo -n " vlan=$iface:$if"