From 3d98699ef3197971484bd990d15e8b9eb0c506ce Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sun, 19 Sep 2010 15:01:47 +0000
Subject: [package] firewall: protect iptables invocations with locks in
interface ops, it might run concurrently due to hotplug invocations on
network restart
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23090 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
package/firewall/files/lib/core_interface.sh | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'package/firewall/files')
diff --git a/package/firewall/files/lib/core_interface.sh b/package/firewall/files/lib/core_interface.sh
index 1a33cde1e..f08975952 100644
--- a/package/firewall/files/lib/core_interface.sh
+++ b/package/firewall/files/lib/core_interface.sh
@@ -72,6 +72,8 @@ fw_configure_interface() {
*/*.*) fw_log info "zone $zone does not support IPv4 address family, skipping"; return ;;
esac
+ lock /var/run/firewall-interface.lock
+
fw $action $mode f ${chain}_ACCEPT ACCEPT $ { -o "$ifname" $onet }
fw $action $mode f ${chain}_ACCEPT ACCEPT $ { -i "$ifname" $inet }
fw $action $mode f ${chain}_DROP DROP $ { -o "$ifname" $onet }
@@ -86,6 +88,8 @@ fw_configure_interface() {
fw $action $mode n PREROUTING ${chain}_prerouting $ { -i "$ifname" $inet }
fw $action $mode r PREROUTING ${chain}_notrack $ { -i "$ifname" $inet }
fw $action $mode n POSTROUTING ${chain}_nat $ { -o "$ifname" $onet }
+
+ lock -u /var/run/firewall-interface.lock
}
local old_zones old_ifname old_subnets
--
cgit v1.2.3