File kdump-net-0009-kind-from-wicked.patch of Package kdump.5722

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File kdump-net-0009-kind-from-wicked.patch of Package kdump.5722

From: Petr Tesarik <ptesarik@suse.com>
Date: Fri, 2 Sep 2016 08:33:29 +0200
Subject: Get configured interface kind using wicked
References: bsc#980328
Patch-mainline: v0.8.16
Git-commit: ee7e1d0a5a5f025015fc8345efface6d7301244b

The kdump interface may not be up or even present when running
mkdumprd, so ip(8) cannot be used. To solve it, read the configured
values using wicked.

The problem with wicked show-config is that the interface kind is not
contained in the XML; it must be inferred from the presence or absence
of certain elements... Oh, well.

Signed-off-by: Petr Tesarik <ptesarik@suse.com>
---
 init/setup-kdump.functions |   55 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

--- a/init/setup-kdump.functions
+++ b/init/setup-kdump.functions
@@ -170,7 +170,60 @@ function kdump_netdev_mode()						   # {
 #   interface kind (IFLA_INFO_KIND)
 function kdump_ifkind()							   # {{{
 {
-    ip -d link show "$1" | sed -n '3{s/^ *$[^ ]*$.*/\1/;s/.*_slave$//;p}'
+    local if="$1"
+
+    # ovs-system is special, because it's recognized by its name
+    if [ "$if" = "ovs-system" ]
+    then
+	echo ovs-system
+
+    # get kind using wicked if possible
+    elif [ -n "$(type -P wicked)" ]
+    then
+	local -a elems=(
+	    infiniband
+	    infiniband:child
+	    bond
+	    team
+	    ovs-bridge
+	    bridge
+	    vlan
+	    macvlan
+	    macvtap
+	    dummy
+	    wireless
+	    tun
+	    tap
+	    ipip
+	    gre
+	    sit
+	)
+	local elem opt var
+	for elem in "${elems[@]}"
+	do
+	    opt="$opt;${elem//[-:]/_}=%{$elem or false}"
+	done
+
+	var="${elems[@]}"
+	var="${var//[-:]/_}"
+	local $var
+	eval  $(wicked show-config | \
+		wicked xpath --reference "/interface[name='$if']" "${opt#;}")
+
+	for elem in "${elems[@]}"
+	do
+	    var="${elem//[-:]/_}"
+	    if [ "${!var}" = true ]
+	    then
+		echo "$elem"
+		break
+	    fi
+	done
+
+    # fall back to reading the current state via netlink
+    else
+	ip -d link show "$1" | sed -n '3{s/^ *$[^ ]*$.*/\1/;s/.*_slave$//;p}'
+    fi
 }									   # }}}
 
 #

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File kdump-net-0009-kind-from-wicked.patch of Package kdump.5722

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