openwrtv4/package/network/ipv6/odhcp6c/files/dhcpv6.sh
Hans Dedecker 327c711da4 odhcp6c: make ds-lite/map tunnel encapsulation limit support configurable (FS#1501)
Be compatible with ISPs which don't support the destination option header containing
the tunnel encapsulation limit as reported in FS#1501 for dynamic created ds-lite/map
interfaces.
Setting the uci parameter encaplimit_dslite/map to ignore; allows to disable the insertion
of the destination option header for the dynamic created ds-lite/map interface.
Otherwise the tunnel encapsulation limit value can be set to a value from 0 till 255
by setting the encaplimit_dslite/map uci parameter accordingly.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2018-06-04 17:05:28 +02:00

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#!/bin/sh
. /lib/functions.sh
. ../netifd-proto.sh
init_proto "$@"
proto_dhcpv6_init_config() {
renew_handler=1
proto_config_add_string 'reqaddress:or("try","force","none")'
proto_config_add_string 'reqprefix:or("auto","no",range(0, 64))'
proto_config_add_string clientid
proto_config_add_string 'reqopts:list(uinteger)'
proto_config_add_string 'defaultreqopts:bool'
proto_config_add_string 'noslaaconly:bool'
proto_config_add_string 'forceprefix:bool'
proto_config_add_string 'extendprefix:bool'
proto_config_add_string 'norelease:bool'
proto_config_add_array 'ip6prefix:list(ip6addr)'
proto_config_add_string iface_dslite
proto_config_add_string zone_dslite
proto_config_add_string encaplimit_dslite
proto_config_add_string iface_map
proto_config_add_string zone_map
proto_config_add_string encaplimit_map
proto_config_add_string iface_464xlat
proto_config_add_string zone_464xlat
proto_config_add_string zone
proto_config_add_string 'ifaceid:ip6addr'
proto_config_add_string "userclass"
proto_config_add_string "vendorclass"
proto_config_add_array "sendopts:list(string)"
proto_config_add_boolean delegate
proto_config_add_int "soltimeout"
proto_config_add_boolean fakeroutes
proto_config_add_boolean sourcefilter
proto_config_add_boolean keep_ra_dnslifetime
proto_config_add_int "ra_holdoff"
}
proto_dhcpv6_add_prefix() {
append "$3" "$1"
}
proto_dhcpv6_add_sendopts() {
[ -n "$1" ] && append "$3" "-x$1"
}
proto_dhcpv6_setup() {
local config="$1"
local iface="$2"
local reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease ip6prefix ip6prefixes iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass sendopts delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff
json_get_vars reqaddress reqprefix clientid reqopts defaultreqopts noslaaconly forceprefix extendprefix norelease iface_dslite iface_map iface_464xlat ifaceid userclass vendorclass delegate zone_dslite zone_map zone_464xlat zone encaplimit_dslite encaplimit_map soltimeout fakeroutes sourcefilter keep_ra_dnslifetime ra_holdoff
json_for_each_item proto_dhcpv6_add_prefix ip6prefix ip6prefixes
# Configure
local opts=""
[ -n "$reqaddress" ] && append opts "-N$reqaddress"
[ -z "$reqprefix" -o "$reqprefix" = "auto" ] && reqprefix=0
[ "$reqprefix" != "no" ] && append opts "-P$reqprefix"
[ -n "$clientid" ] && append opts "-c$clientid"
[ "$defaultreqopts" = "0" ] && append opts "-R"
[ "$noslaaconly" = "1" ] && append opts "-S"
[ "$forceprefix" = "1" ] && append opts "-F"
[ "$norelease" = "1" ] && append opts "-k"
[ -n "$ifaceid" ] && append opts "-i$ifaceid"
[ -n "$vendorclass" ] && append opts "-V$vendorclass"
[ -n "$userclass" ] && append opts "-u$userclass"
[ "$keep_ra_dnslifetime" = "1" ] && append opts "-L"
[ -n "$ra_holdoff" ] && append opts "-m$ra_holdoff"
local opt
for opt in $reqopts; do
append opts "-r$opt"
done
json_for_each_item proto_dhcpv6_add_sendopts sendopts opts
append opts "-t${soltimeout:-120}"
[ -n "$ip6prefixes" ] && proto_export "USERPREFIX=$ip6prefixes"
[ -n "$iface_dslite" ] && proto_export "IFACE_DSLITE=$iface_dslite"
[ -n "$iface_map" ] && proto_export "IFACE_MAP=$iface_map"
[ -n "$iface_464xlat" ] && proto_export "IFACE_464XLAT=$iface_464xlat"
[ "$delegate" = "0" ] && proto_export "IFACE_DSLITE_DELEGATE=0"
[ "$delegate" = "0" ] && proto_export "IFACE_MAP_DELEGATE=0"
[ -n "$zone_dslite" ] && proto_export "ZONE_DSLITE=$zone_dslite"
[ -n "$zone_map" ] && proto_export "ZONE_MAP=$zone_map"
[ -n "$zone_464xlat" ] && proto_export "ZONE_464XLAT=$zone_464xlat"
[ -n "$zone" ] && proto_export "ZONE=$zone"
[ -n "$encaplimit_dslite" ] && proto_export "ENCAPLIMIT_DSLITE=$encaplimit_dslite"
[ -n "$encaplimit_map" ] && proto_export "ENCAPLIMIT_MAP=$encaplimit_map"
[ "$fakeroutes" != "0" ] && proto_export "FAKE_ROUTES=1"
[ "$sourcefilter" = "0" ] && proto_export "NOSOURCEFILTER=1"
[ "$extendprefix" = "1" ] && proto_export "EXTENDPREFIX=1"
proto_export "INTERFACE=$config"
proto_run_command "$config" odhcp6c \
-s /lib/netifd/dhcpv6.script \
$opts $iface
}
proto_dhcpv6_renew() {
local interface="$1"
# SIGUSR1 forces odhcp6c to renew its lease
local sigusr1="$(kill -l SIGUSR1)"
[ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
}
proto_dhcpv6_teardown() {
local interface="$1"
proto_kill_command "$interface"
}
add_protocol dhcpv6