odhcp6c: add skpriority option

Allowing the (kernel) packet priority to be set through UCI.

This makes it straightforward to set some VLAN priority for DHCP
requests through a simple egress qos map. (Avoiding the need for
firewall matching and marking through iptables, which prevents using
flow offloading).

(Such priority tag is a hard requirement for some ISPs, such as Orange
in France).

Depends on: https://github.com/openwrt/odhcp6c/pull/74

Signed-off-by: Pacien TRAN-GIRARD <pacien.trangirard@pacien.net>

diff --git a/package/network/ipv6/odhcp6c/files/dhcpv6.sh b/package/network/ipv6/odhcp6c/files/dhcpv6.sh
index 8c2a0859cb4f4da6b3a7ed8fdb747f6e8b793ef2..18c24febd614b0c9aa4b6d70e7eaa7696a361e54 100755 (executable)
--- a/package/network/ipv6/odhcp6c/files/dhcpv6.sh
+++ b/package/network/ipv6/odhcp6c/files/dhcpv6.sh
@@ -34,6 +34,7 @@ proto_dhcpv6_init_config() {
        proto_config_add_string "vendorclass"
        proto_config_add_array "sendopts:list(string)"
        proto_config_add_boolean delegate
+       proto_config_add_int skpriority
        proto_config_add_int "soltimeout"
        proto_config_add_boolean fakeroutes
        proto_config_add_boolean sourcefilter
@@ -54,8 +55,8 @@ proto_dhcpv6_setup() {
        local config="$1"
        local iface="$2"
 
-       local reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast noclientfqdn noacceptreconfig ip6prefix ip6prefixes iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass sendopts delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff verbose
-       json_get_vars reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast noclientfqdn noacceptreconfig iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff verbose
+       local reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast noclientfqdn noacceptreconfig ip6prefix ip6prefixes iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass sendopts delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map skpriority soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff verbose
+       json_get_vars reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease noserverunicast noclientfqdn noacceptreconfig iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map skpriority soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff verbose
        json_for_each_item proto_dhcpv6_add_prefix ip6prefix ip6prefixes
 
        # Configure
@@ -89,6 +90,8 @@ proto_dhcpv6_setup() {
 
        [ "$keep_ra_dnslifetime" = "1" ] && append opts "-L"
 
+       [ -n "$skpriority" ] && append opts "-K$skpriority"
+
        [ -n "$ra_holdoff" ] && append opts "-m$ra_holdoff"
 
        [ "$verbose" = "1" ] && append opts "-v"