From: Harald Hoyer <harald@redhat.com>
Date: Wed, 19 Aug 2015 12:00:28 +0000 (+0200)
Subject: network/ifup.sh:do_static(): error out, if IP is already assigned
X-Git-Tag: 044~61
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=27a5aecf56fbfa9a8d92d86d7e68c2781c0b4523;p=thirdparty%2Fdracut.git

network/ifup.sh:do_static(): error out, if IP is already assigned

(cherry picked from commit 32770ca79a1f6828ca9fdf4b6841e6a6d4e4754a)
---

diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
index 69a4567bb..381ff43b3 100755
--- a/modules.d/40network/ifup.sh
+++ b/modules.d/40network/ifup.sh
@@ -155,6 +155,15 @@ do_static() {
         return 1
     fi
 
+    ip route get "$ip" | {
+        read a rest
+        if [ "$a" = "local" ]; then
+            warn "Not assigning $ip to interface $netif, cause it is already assigned!"
+            return 1
+        fi
+        return 0
+    } || return 1
+
     [ -n "$macaddr" ] && ip link set address $macaddr dev $netif
     [ -n "$mtu" ] && ip link set mtu $mtu dev $netif
     if strglobin $ip '*:*:*'; then