From 4ec362ce0ba3fc8b10df83c015d88e002f8ccd36 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Wed, 1 Jul 2015 14:57:15 +0200
Subject: [PATCH] network/dhclient-script.sh: make IPv4 DHCP lease time
 optionally

If bootp is used, no lease time is provided in the packet from the bootp
server.

(cherry picked from commit 0f89ec314b062a410199251db0356a55b4773173)
---
 modules.d/40network/dhclient-script.sh | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/modules.d/40network/dhclient-script.sh b/modules.d/40network/dhclient-script.sh
index d96f7d9..7972af9 100755
--- a/modules.d/40network/dhclient-script.sh
+++ b/modules.d/40network/dhclient-script.sh
@@ -23,7 +23,11 @@ setup_interface() {
     search=$(printf -- "$new_domain_search")
     namesrv=$new_domain_name_servers
     hostname=$new_host_name
-    lease_time=$new_dhcp_lease_time
+
+    [ -n "$new_dhcp_lease_time" ] && lease_time=$new_dhcp_lease_time
+    [ -n "$new_max_life" ] && lease_time=$new_max_life
+    preferred_lft=$lease_time
+    [ -n "$new_preferred_life" ] && preferred_lft=$new_preferred_life
 
     [ -f /tmp/net.$netif.override ] && . /tmp/net.$netif.override
 
@@ -41,9 +45,9 @@ setup_interface() {
         fi
     fi
 
-    ip addr add $ip${mask:+/$mask} ${bcast:+broadcast $bcast} \
-        valid_lft ${lease_time} preferred_lft ${lease_time} \
-        dev $netif
+    ip addr add $ip${mask:+/$mask} ${bcast:+broadcast $bcast} dev $netif \
+        ${lease_time:+valid_lft $lease_time} \
+        ${preferred_lft:+preferred_lft ${preferred_lft}}
 
     [ -n "$gw" ] && echo ip route replace default via $gw dev $netif > /tmp/net.$netif.gw