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-rw-r--r--package/firewall/files/lib/core_interface.sh4
1 files changed, 4 insertions, 0 deletions
diff --git a/package/firewall/files/lib/core_interface.sh b/package/firewall/files/lib/core_interface.sh
index 1a33cde1ec..f08975952c 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