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gre: make encaplimit support configurable

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Make inclusion of the destination option header containing the tunnel
encapsulation limit configurable for IPv6 GRE packets.
Setting the uci parameter encaplimit to ignore; allows to disable the
insertion of the destination option header in the IPv6 GRE packets.
Otherwise the tunnel encapsulation limit value can be set to a value
from 0 till 255 by setting the encaplimit uci parameter accordingly.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
(backported from 3d015e971f)
This commit is contained in:
Hans Dedecker 2018-10-17 11:02:05 +02:00 committed by Jo-Philipp Wich
parent d5dd3b1134
commit 1c56c3d253
2 changed files with 4 additions and 2 deletions
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2
package/network/config/gre/Makefile
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@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=gre
PKG_VERSION:=1
PKG_RELEASE:=8
PKG_RELEASE:=9
PKG_LICENSE:=GPL-2.0
include $(INCLUDE_DIR)/package.mk

4
package/network/config/gre/files/gre.sh
View File

@ -39,6 +39,7 @@ gre_generic_setup() {
[ -n "$ocsum" ] && json_add_boolean ocsum "$ocsum"
[ -n "$iseqno" ] && json_add_boolean iseqno "$iseqno"
[ -n "$oseqno" ] && json_add_boolean oseqno "$oseqno"
[ -n "$encaplimit" ] && json_add_string encaplimit "$encaplimit"
json_close_object
proto_close_tunnel
@ -133,7 +134,7 @@ grev6_setup() {
local remoteip6
local ip6addr peer6addr weakif
json_get_vars ip6addr peer6addr tunlink weakif
json_get_vars ip6addr peer6addr tunlink weakif encaplimit
[ -z "$peer6addr" ] && {
proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
@ -274,6 +275,7 @@ proto_grev6_init_config() {
proto_config_add_string "ip6addr"
proto_config_add_string "peer6addr"
proto_config_add_string "weakif"
proto_config_add_string "encaplimit"
}
proto_grev6tap_init_config() {