gre: Generic Routing Encapsulation package support
The package supports Generic Routing Encapsulation support by registering following protocol kinds:
-gre
-gretap
-grev6
-grev6tap
Following options are valid for gre and gretap kinds:
-ipaddr
-peeraddr
-df
-mtu
-ttl
-tunlink
-zone
-ikey
-okey
-icsum
-ocsum
-iseqno
-oseqno
The gretap kind supports additionally the network option
Following options are valid for grev6 and grev6tap kinds:
-ip6addr
-peer6addr
-weakif
-mtu
-ttl
-tunlink
-zone
-ikey
-okey
-icsum
-ocsum
-iseqno
-oseqno
The grev6tap kind supports additionally the network option
Typical network config for a GREv4 tunnel :
config interface 'gre'
option peeraddr '172.16.18.240'
option mtu '1400'
option proto 'gre'
option tunlink 'wan'
option zone 'tunnel'
Typical network config for a GREv4 tap tunnel :
config interface 'gretap'
option peeraddr '195.207.5.79'
option mtu '1400'
option proto 'gretap'
option zone 'tunnel'
option tunlink 'wan'
option network 'wlan_ap'
I added myself as maintainer for the moment; feel free to change.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
SVN-Revision: 41897
This commit is contained in:
Steven Barth
parent
e413bb0e7e
commit
7dabdbde78
2 changed files with 299 additions and 0 deletions
64
package/network/config/gre/Makefile
Normal file
64
package/network/config/gre/Makefile
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#
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# Copyright (C) 2014 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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PKG_NAME:=gre
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PKG_VERSION:=1
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PKG_RELEASE:=1
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include $(INCLUDE_DIR)/package.mk
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define Package/gre/Default
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SECTION:=net
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CATEGORY:=Network
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MAINTAINER:=Hans Dedecker <dedeckeh@gmail.com>
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endef
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define Package/gre
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$(call Package/gre/Default)
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TITLE:=Generic Routing Encapsulation config support
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endef
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define Package/gre/description
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Generic Routing Encapsulation config support (IPv4 and IPv6) in /etc/config/network.
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endef
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define Package/grev4
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$(call Package/gre/Default)
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TITLE:=Generic Routing Encapsulation (IPv4) config support
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DEPENDS:=@(PACKAGE_gre) +kmod-gre
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endef
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define Package/grev4/description
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Generic Routing Encapsulation config support (IPv4) in /etc/config/network.
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endef
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define Package/grev6
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$(call Package/gre/Default)
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TITLE:=Generic Routing Encapsulation (IPv6) config support
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DEPENDS:=@(PACKAGE_gre) +kmod-ipv6 +kmod-ip6-gre
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endef
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define Package/grev6/description
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Generic Routing Encapsulation config support (IPv6) in /etc/config/network.
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endef
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define Build/Compile
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endef
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define Build/Configure
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endef
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define Package/gre/install
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$(INSTALL_DIR) $(1)/lib/netifd/proto
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$(INSTALL_BIN) ./files/gre.sh $(1)/lib/netifd/proto/gre.sh
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endef
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$(eval $(call BuildPackage,gre))
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$(eval $(call BuildPackage,grev4))
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$(eval $(call BuildPackage,grev6))
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235
package/network/config/gre/files/gre.sh
Executable file
235
package/network/config/gre/files/gre.sh
Executable file
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#!/bin/sh
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[ -n "$INCLUDE_ONLY" ] || {
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. /lib/functions.sh
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. /lib/functions/network.sh
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. ../netifd-proto.sh
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init_proto "$@"
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}
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gre_generic_setup() {
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local cfg="$1"
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local mode="$2"
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local local="$3"
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local remote="$4"
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local link="$5"
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local mtu ttl zone ikey okey icsum ocsum iseqno oseqno
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json_get_vars mtu ttl zone ikey okey icsum ocsum iseqno oseqno
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[ -z "$zone" ] && zone="wan"
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proto_init_update "$link" 1
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proto_add_tunnel
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json_add_string mode "$mode"
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json_add_int mtu "${mtu:-1280}"
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[ -n "$df" ] && json_add_boolean df "$df"
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json_add_int ttl "${ttl:-64}"
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json_add_string local "$local"
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json_add_string remote "$remote"
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[ -n "$tunlink" ] && json_add_string link "$tunlink"
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json_add_string info "${ikey:-0},${okey:-0},${icsum:-0},${ocsum:-0},${iseqno:-0},${oseqno:-0}"
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proto_close_tunnel
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proto_add_data
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[ -n "$zone" ] && json_add_string zone "$zone"
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proto_close_data
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proto_send_update "$cfg"
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}
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gre_setup() {
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local cfg="$1"
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local mode="$2"
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local ipaddr peeraddr
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json_get_vars df ipaddr peeraddr tunlink
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[ -z "$peeraddr" ] && {
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proto_notify_error "$cfg" "MISSING_ADDRESS"
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proto_block_restart "$cfg"
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exit
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}
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( proto_add_host_dependency "$cfg" "0.0.0.0" "$tunlink" )
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[ -z "$ipaddr" ] && {
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local wanif="$tunlink"
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if [ -z $wanif ] && ! network_find_wan wanif; then
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proto_notify_error "$cfg" "NO_WAN_LINK"
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exit
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fi
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if ! network_get_ipaddr ipaddr "$wanif"; then
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proto_notify_error "$cfg" "NO_WAN_LINK"
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exit
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fi
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}
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[ -z "$df" ] && df="1"
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gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre-$cfg"
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}
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proto_gre_setup() {
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local cfg="$1"
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gre_setup $cfg "greip"
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}
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proto_gretap_setup() {
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local cfg="$1"
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local network
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json_get_vars network
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gre_setup $cfg "gretapip"
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json_init
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json_add_string name "gre-$cfg"
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json_add_boolean link-ext 0
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json_close_object
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for i in $network; do
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ubus call network.interface."$i" add_device "$(json_dump)"
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done
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}
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grev6_setup() {
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local cfg="$1"
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local mode="$2"
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local ip6addr peer6addr weakif
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json_get_vars ip6addr peer6addr tunlink weakif
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[ -z "$peer6addr" ] && {
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proto_notify_error "$cfg" "MISSING_ADDRESS"
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proto_block_restart "$cfg"
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exit
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}
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( proto_add_host_dependency "$cfg" "::" "$tunlink" )
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[ -z "$ip6addr" ] && {
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local wanif="$tunlink"
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if [ -z $wanif ] && ! network_find_wan6 wanif; then
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proto_notify_error "$cfg" "NO_WAN_LINK"
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exit
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fi
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if ! network_get_ipaddr6 ip6addr "$wanif"; then
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[ -z "$weakif" ] && weakif="lan"
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if ! network_get_ipaddr6 ip6addr "$weakif"; then
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proto_notify_error "$cfg" "NO_WAN_LINK"
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exit
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fi
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fi
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}
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gre_generic_setup $cfg $mode $ip6addr $peer6addr "grev6-$cfg"
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}
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proto_grev6_setup() {
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local cfg="$1"
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grev6_setup $cfg "greip6"
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}
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proto_grev6tap_setup() {
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local cfg="$1"
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local network
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json_get_vars network
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grev6_setup $cfg "gretapip6"
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json_init
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json_add_string name "grev6-$cfg"
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json_add_boolean link-ext 0
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json_close_object
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for i in $network; do
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ubus call network.interface."$i" add_device "$(json_dump)"
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done
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}
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gretap_generic_teardown() {
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local network
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json_get_vars network
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json_init
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json_add_string name "$1"
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json_add_boolean link-ext 0
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json_close_object
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for i in $network; do
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ubus call network.interface."$i" remove_device "$(json_dump)"
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done
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}
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proto_gre_teardown() {
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local cfg="$1"
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}
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proto_gretap_teardown() {
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local cfg="$1"
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gretap_generic_teardown "gre-$cfg"
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}
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proto_grev6_teardown() {
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local cfg="$1"
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}
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proto_grev6tap_teardown() {
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local cfg="$1"
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gretap_generic_teardown "grev6-$cfg"
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}
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gre_generic_init_config() {
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no_device=1
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available=1
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proto_config_add_int "mtu"
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proto_config_add_int "ttl"
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proto_config_add_string "tunlink"
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proto_config_add_string "zone"
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proto_config_add_int "ikey"
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proto_config_add_int "okey"
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proto_config_add_boolean "icsum"
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proto_config_add_boolean "ocsum"
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proto_config_add_boolean "iseqno"
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proto_config_add_boolean "oseqno"
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}
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proto_gre_init_config() {
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gre_generic_init_config
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proto_config_add_string "ipaddr"
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proto_config_add_string "peeraddr"
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proto_config_add_boolean "df"
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}
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proto_gretap_init_config() {
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proto_gre_init_config
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proto_config_add_string "network"
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}
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proto_grev6_init_config() {
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gre_generic_init_config
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proto_config_add_string "ip6addr"
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proto_config_add_string "peer6addr"
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proto_config_add_string "weakif"
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}
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proto_grev6tap_init_config() {
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proto_grev6_init_config
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proto_config_add_string "network"
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}
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[ -n "$INCLUDE_ONLY" ] || {
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[ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gre
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[ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gretap
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[ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6
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[ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6tap
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}
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