From a83f049b5be3396deaecaafa3b7adb447a1d1336 Mon Sep 17 00:00:00 2001 From: Hans Dedecker Date: Thu, 28 Apr 2016 13:40:17 +0200 Subject: [PATCH] netifd: Add configurable DHCP release behavior Make sending a DHCP release configurable when the client exits allowing to clean up IP/mac state info in intermediate devices. Signed-off-by: Hans Dedecker --- .../network/config/netifd/files/lib/netifd/proto/dhcp.sh | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh b/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh index 546e1d661a..7f4af25329 100755 --- a/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh +++ b/package/network/config/netifd/files/lib/netifd/proto/dhcp.sh @@ -12,6 +12,7 @@ proto_dhcp_init_config() { proto_config_add_string clientid proto_config_add_string vendorid proto_config_add_boolean 'broadcast:bool' + proto_config_add_boolean 'release:bool' proto_config_add_string 'reqopts:list(string)' proto_config_add_string iface6rd proto_config_add_string sendopts @@ -26,8 +27,8 @@ proto_dhcp_setup() { local config="$1" local iface="$2" - local ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes - json_get_vars ipaddr hostname clientid vendorid broadcast reqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes + local ipaddr hostname clientid vendorid broadcast release reqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes + json_get_vars ipaddr hostname clientid vendorid broadcast release reqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes local opt dhcpopts for opt in $reqopts; do @@ -39,6 +40,7 @@ proto_dhcp_setup() { done [ "$broadcast" = 1 ] && broadcast="-B" || broadcast= + [ "$release" = 1 ] && release="-R" || release= [ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C" [ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd" [ "$iface6rd" != 0 -a -f /lib/netifd/proto/6rd.sh ] && append dhcpopts "-O 212" @@ -56,7 +58,7 @@ proto_dhcp_setup() { ${ipaddr:+-r $ipaddr} \ ${hostname:+-H $hostname} \ ${vendorid:+-V $vendorid} \ - $clientid $broadcast $dhcpopts + $clientid $broadcast $release $dhcpopts } proto_dhcp_renew() { -- 2.25.1