--- /dev/null
+From 02b7fae8a0f1d5bab3ec48417db822d56e02ce7e Mon Sep 17 00:00:00 2001
+From: Nick Hainke <vincent@systemli.org>
+Date: Fri, 28 Aug 2020 10:28:31 +0200
+Subject: [PATCH] filtergw: add plugin allow to allow/block gateways (even
+ smartgateway)
+
+The plugin adds a possibility to filter out gateway HNAs. This can be
+very handy e.g. for faulty nodes. A gateway can be taken out directly on
+a central node and all traffic is then redirected. Also the underlying
+smart gateways are adapted. Currently the link multiplier is often used
+to control a faulty node, but it is not necessarily the best way to do
+so.
+
+The plugin also allows to determine the smart gateway on the local node.
+This way you can easily select another gateway node to direct traffic,
+or block a specific one.
+
+Here are some sample configurations:
+
+Only allow Gateway HNA from '10.230.132.40':
+config LoadPlugin
+ option library 'olsrd_filtergw'
+ list originator '10.230.132.40'
+ option allowlist '1'
+
+Block Gateway HNA from '10.230.132.40':
+config LoadPlugin
+ option library 'olsrd_filtergw'
+ list originator '10.230.132.40'
+ option allowlist '0'
+
+The plugin is based on the work of sven-ola, pmelange and booo.
+
+Signed-off-by: Nick Hainke <vincent@systemli.org>
+---
+ Makefile | 14 +-
+ lib/filtergw/Makefile | 62 ++++++
+ lib/filtergw/src/olsrd_filtergw.c | 307 ++++++++++++++++++++++++++++++
+ lib/filtergw/src/olsrd_filtergw.h | 60 ++++++
+ lib/filtergw/src/olsrd_plugin.c | 97 ++++++++++
+ lib/filtergw/version-script.txt | 10 +
+ 6 files changed, 549 insertions(+), 1 deletion(-)
+ create mode 100644 lib/filtergw/Makefile
+ create mode 100644 lib/filtergw/src/olsrd_filtergw.c
+ create mode 100644 lib/filtergw/src/olsrd_filtergw.h
+ create mode 100644 lib/filtergw/src/olsrd_plugin.c
+ create mode 100644 lib/filtergw/version-script.txt
+
+--- a/Makefile
++++ b/Makefile
+@@ -234,7 +234,7 @@ rpm:
+
+ # This is quite ugly but at least it works
+ ifeq ($(OS),linux)
+-SUBDIRS := arprefresh bmf dot_draw dyn_gw dyn_gw_plain httpinfo info jsoninfo mdns mini nameservice netjson poprouting p2pd pgraph pud quagga secure sgwdynspeed txtinfo watchdog
++SUBDIRS := arprefresh bmf dot_draw dyn_gw dyn_gw_plain filtergw httpinfo info jsoninfo mdns mini nameservice netjson poprouting p2pd pgraph pud quagga secure sgwdynspeed txtinfo watchdog
+ else
+ ifeq ($(OS),win32)
+ SUBDIRS := dot_draw httpinfo info jsoninfo mini netjson pgraph secure txtinfo
+@@ -337,6 +337,18 @@ dyn_gw_plain_install:
+ dyn_gw_plain_uninstall:
+ $(MAKECMDPREFIX)$(MAKECMD) -C lib/dyn_gw_plain DESTDIR=$(DESTDIR) uninstall
+
++filtergw:
++ $(MAKECMDPREFIX)$(MAKECMD) -C lib/filtergw
++
++filtergw_clean:
++ $(MAKECMDPREFIX)$(MAKECMD) -C lib/filtergw DESTDIR=$(DESTDIR) clean
++
++filtergw_install:
++ $(MAKECMDPREFIX)$(MAKECMD) -C lib/filtergw DESTDIR=$(DESTDIR) install
++
++filtergw_uninstall:
++ $(MAKECMDPREFIX)$(MAKECMD) -C lib/filtergw DESTDIR=$(DESTDIR) uninstall
++
+ httpinfo:
+ $(MAKECMDPREFIX)$(MAKECMD) -C lib/httpinfo
+
+--- /dev/null
++++ b/lib/filtergw/Makefile
+@@ -0,0 +1,62 @@
++# The olsr.org Optimized Link-State Routing daemon(olsrd)
++# Copyright (c) 2021, Nick Hainke <vincent@systemli.org>
++# All rights reserved.
++#
++# Redistribution and use in source and binary forms, with or without
++# modification, are permitted provided that the following conditions
++# are met:
++#
++# * Redistributions of source code must retain the above copyright
++# notice, this list of conditions and the following disclaimer.
++# * Redistributions in binary form must reproduce the above copyright
++# notice, this list of conditions and the following disclaimer in
++# the documentation and/or other materials provided with the
++# distribution.
++# * Neither the name of olsr.org, olsrd nor the names of its
++# contributors may be used to endorse or promote products derived
++# from this software without specific prior written permission.
++#
++# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
++# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
++# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
++# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
++# POSSIBILITY OF SUCH DAMAGE.
++#
++# Visit http://www.olsr.org for more information.
++#
++# If you find this software useful feel free to make a donation
++# to the project. For more information see the website or contact
++# the copyright holders.
++#
++
++OLSRD_PLUGIN = true
++PLUGIN_NAME = olsrd_filtergw
++PLUGIN_VER = 0.0.1
++
++TOPDIR = ../..
++include $(TOPDIR)/Makefile.inc
++
++default_target: $(PLUGIN_FULLNAME)
++
++$(PLUGIN_FULLNAME): $(OBJS) version-script.txt
++ifeq ($(VERBOSE),0)
++ @echo "[LD] $@"
++endif
++ $(MAKECMDPREFIX)$(CC) $(LDFLAGS) -o $(PLUGIN_FULLNAME) $(OBJS) $(LIBS)
++
++install: $(PLUGIN_FULLNAME)
++ $(STRIP) $(PLUGIN_FULLNAME)
++ $(INSTALL_LIB)
++
++uninstall:
++ $(UNINSTALL_LIB)
++
++clean:
++ rm -f $(OBJS) $(SRCS:%.c=%.d) $(PLUGIN_FULLNAME)
+--- /dev/null
++++ b/lib/filtergw/src/olsrd_filtergw.c
+@@ -0,0 +1,307 @@
++/*
++ * The olsr.org Optimized Link-State Routing daemon (olsrd)
++ *
++ * (c) by the OLSR project
++ *
++ * See our Git repository to find out who worked on this file
++ * and thus is a copyright holder on it.
++ *
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in
++ * the documentation and/or other materials provided with the
++ * distribution.
++ * * Neither the name of olsr.org, olsrd nor the names of its
++ * contributors may be used to endorse or promote products derived
++ * from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
++ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
++ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
++ * POSSIBILITY OF SUCH DAMAGE.
++ *
++ * Visit http://www.olsr.org for more information.
++ *
++ * If you find this software useful feel free to make a donation
++ * to the project. For more information see the website or contact
++ * the copyright holders.
++ *
++ */
++
++#include <arpa/inet.h>
++
++#include "olsr_types.h"
++#include "olsrd_filtergw.h"
++#include "olsr.h"
++#include "defs.h"
++#include "ipcalc.h"
++#include "scheduler.h"
++#include "log.h"
++#include "routing_table.h"
++#include "olsr_cfg.h"
++
++#include <stdio.h>
++#include <string.h>
++#include <stdlib.h>
++#include <sys/time.h>
++#include <net/route.h>
++#include <unistd.h>
++#include <errno.h>
++#include <time.h>
++
++static int is_allowlist = 0;
++
++static struct filter_list * add_to_filter_list(const char *, struct filter_list *);
++
++struct originator_list {
++ union olsr_ip_addr originator;
++ struct originator_list * next;
++};
++
++struct filter_group {
++ struct originator_list * originator_list;
++ struct hna_group * next;
++};
++
++static struct filter_group * filter_groups = NULL;
++
++/* -------------------------------------------------------------------------
++ * Function : add_to_originator_list
++ * Description: Add a new ip to originator list
++ * Input : originator_address - the address of originator
++ * the_originator_list - the list of originators
++ * Output : none
++ * Return : a pointer to the newly added originator, i.e. start of the list
++ * Data Used : none
++ * ------------------------------------------------------------------------- */
++/* add the valid IPs to the head of the list */
++static struct originator_list *
++add_to_originator_list(union olsr_ip_addr * originator_address, struct originator_list *the_originator_list)
++{
++ struct originator_list *new = calloc(1, sizeof(struct originator_list));
++ if (!new) {
++ olsr_exit("FILTERGW: Out of memory", EXIT_FAILURE);
++ }
++ memcpy(&new->originator, originator_address, olsr_cnf->ipsize);
++ new->next = the_originator_list;
++ return new;
++}
++
++/**
++ * read config file parameters
++ */
++static int
++set_plugin_filter(const char *value, void *data __attribute__ ((unused)), set_plugin_parameter_addon addon __attribute__ ((unused)))
++{
++ union olsr_ip_addr addr;
++
++ if (inet_pton(olsr_cnf->ip_version, value, &addr) <= 0) {
++ OLSR_PRINTF(0, "Illegal IP address \"%s\"", value);
++ return 1;
++ }
++
++ if (filter_groups == NULL) {
++ struct filter_group *new = calloc(1, sizeof(struct filter_group));
++ if (new == NULL) {
++ olsr_exit("FILTERGW: Out of memory", EXIT_FAILURE);
++ }
++ filter_groups = new;
++ new->next = filter_groups;
++ }
++
++ filter_groups->originator_list = add_to_originator_list(&addr, filter_groups->originator_list);
++
++ return 0;
++}
++
++/* -------------------------------------------------------------------------
++ * Function : olsrd_filtergw_parser
++ * Description: Function to be passed to the parser engine. This function
++ * processes the incoming message and filters gw hna's.
++ * Input : m - message to parse
++ * in_if - interface to use (unused in this application)
++ * ipaddr - IP-address to use (unused in this application)
++ * Output : none
++ * Return : false if message should be supressed, true otherwise
++ * Data Used : none
++ * ------------------------------------------------------------------------- */
++bool
++olsrd_filtergw_parser(
++ union olsr_message *m,
++ struct interface_olsr *in_if __attribute__ ((unused)),
++ union olsr_ip_addr *ipaddr __attribute__ ((unused))
++){
++
++ uint8_t olsr_msgtype;
++ olsr_reltime vtime;
++ uint16_t olsr_msgsize;
++ union olsr_ip_addr originator;
++
++ int hnasize;
++ const uint8_t *curr, *curr_end;
++ uint8_t *olsr_msgsize_p, *curr_hna, *temp_msgsize;
++
++ struct ipaddr_str buf;
++#ifdef DEBUG
++ OLSR_PRINTF(5, "Processing HNA\n");
++#endif
++
++ /* Check if everyting is ok */
++ if (!m) {
++ return false;
++ }
++ curr = (const uint8_t *)m;
++
++ /* olsr_msgtype */
++ pkt_get_u8(&curr, &olsr_msgtype);
++ if (olsr_msgtype != HNA_MESSAGE) {
++ OLSR_PRINTF(1, "not a HNA message!\n");
++ return false;
++ }
++ /* Get vtime */
++ pkt_get_reltime(&curr, &vtime);
++
++ /* olsr_msgsize */
++ pkt_get_u16(&curr, &olsr_msgsize);
++
++ /* validate originator */
++ pkt_get_ipaddress(&curr, &originator);
++ /*printf("HNA from %s\n\n", olsr_ip_to_string(&buf, &originator)); */
++
++ if(!should_filter(&originator))
++ {
++ return true;
++ }
++
++ /* ttl */
++ pkt_ignore_u8(&curr);
++
++ /* hopcnt */
++ pkt_ignore_u8(&curr);
++
++ /* seqno */
++ pkt_ignore_u16(&curr);
++
++ /* msgtype(1) + vtime(1) + msgsize(2) + ttl(1) + hopcnt(1) + seqno(2) = 8 */
++ olsr_msgsize_p = (uint8_t *)m + 2;
++ curr_hna = (uint8_t *)m + 8 + olsr_cnf->ipsize;
++ curr_end = (const uint8_t *)m + olsr_msgsize;
++ hnasize = olsr_msgsize - 8 - olsr_cnf->ipsize;
++
++ if ((hnasize % (2 * olsr_cnf->ipsize)) != 0) {
++ OLSR_PRINTF(1, "Illegal HNA message from %s with size %d!\n",
++ olsr_ip_to_string(&buf, &originator), olsr_msgsize);
++ return false;
++ }
++
++ while (curr < curr_end) {
++ struct olsr_ip_prefix prefix;
++ union olsr_ip_addr mask;
++
++ pkt_get_ipaddress(&curr, &prefix.prefix);
++ pkt_get_ipaddress(&curr, &mask);
++ prefix.prefix_len = olsr_netmask_to_prefix(&mask);
++
++ if (is_prefix_inetgw(&prefix)) {
++ hnasize -= 2 * olsr_cnf->ipsize;
++ if (0 < hnasize) {
++ /* move the rest of the message forward over the gw HNA */
++ memmove(curr_hna, curr, curr_end - curr);
++ curr_end -= 2 * olsr_cnf->ipsize;
++ curr = curr_hna;
++
++ /* update the message size */
++ temp_msgsize = olsr_msgsize_p;
++ olsr_msgsize -= 2 * olsr_cnf->ipsize;
++ pkt_put_u16(&temp_msgsize, olsr_msgsize);
++ continue;
++ }
++ return false;
++ }
++ else
++ {
++ curr_hna += 2 * olsr_cnf->ipsize;
++ }
++ }
++ return true;
++}
++
++static const struct olsrd_plugin_parameters plugin_parameters[] = {
++ {.name = "originator", .set_plugin_parameter = &set_plugin_filter, .data = NULL},
++ {.name = "allowlist", .set_plugin_parameter = &set_plugin_int, .data = &is_allowlist},
++};
++
++void
++olsrd_get_plugin_parameters(const struct olsrd_plugin_parameters **params, int *size)
++{
++ *params = plugin_parameters;
++ *size = sizeof(plugin_parameters) / sizeof(*plugin_parameters);
++}
++
++int
++olsrd_plugin_init(void)
++{
++ olsr_parser_add_function(&olsrd_filtergw_parser, HNA_MESSAGE);
++ return 1;
++}
++
++void olsrd_plugin_fini(void) {
++ while(filter_groups) {
++
++ while (filter_groups->originator_list) {
++ struct originator_list* next = filter_groups->originator_list->next;
++ // free(&filter_groups->originator_list->originator);
++ free(filter_groups->originator_list);
++ filter_groups->originator_list = next;
++ }
++
++ struct filter_group* next = filter_groups->next;
++ free(filter_groups);
++ }
++}
++
++/* -------------------------------------------------------------------------
++ * Function : should_filter
++ * Description: Function used by the parse engine to see if filter applies
++ * to given originator address.
++ * Input : originator - ip addr of originator that should be checked
++ * Output : none
++ * Return : false if gw should note be supressed, true otherwise
++ * Data Used : none
++ * ------------------------------------------------------------------------- */
++int should_filter(union olsr_ip_addr * originator)
++{
++ int found = 0;
++
++ if(filter_groups == NULL)
++ {
++ /* if it is allow list but no entry, filter every GW announcement */
++ return is_allowlist;
++ }
++
++ /* for now we only have 1 list entry */
++ struct originator_list *list = filter_groups->originator_list;
++ for (list = filter_groups->originator_list; list; list = list->next) {
++ if(ipequal(&list->originator, originator))
++ {
++ found = 1;
++ break;
++ }
++ }
++ return is_allowlist ? !found : found;
++}
+\ No newline at end of file
+--- /dev/null
++++ b/lib/filtergw/src/olsrd_filtergw.h
+@@ -0,0 +1,60 @@
++/*
++ * The olsr.org Optimized Link-State Routing daemon (olsrd)
++ *
++ * (c) by the OLSR project
++ *
++ * See our Git repository to find out who worked on this file
++ * and thus is a copyright holder on it.
++ *
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in
++ * the documentation and/or other materials provided with the
++ * distribution.
++ * * Neither the name of olsr.org, olsrd nor the names of its
++ * contributors may be used to endorse or promote products derived
++ * from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
++ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
++ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
++ * POSSIBILITY OF SUCH DAMAGE.
++ *
++ * Visit http://www.olsr.org for more information.
++ *
++ * If you find this software useful feel free to make a donation
++ * to the project. For more information see the website or contact
++ * the copyright holders.
++ *
++ */
++
++#ifndef _OLSRD_FILTERGW_H
++#define _OLSRD_FILTERGW_H
++
++#include "olsrd_plugin.h"
++#include "plugin_util.h"
++
++int olsrd_plugin_init(void);
++
++void olsrd_plugin_fini(void);
++
++int olsrd_plugin_interface_version(void);
++
++void olsrd_get_plugin_parameters(const struct olsrd_plugin_parameters **params, int *size);
++
++#endif /* _OLSRD_FILTERGW_H */
+\ No newline at end of file
+--- /dev/null
++++ b/lib/filtergw/src/olsrd_plugin.c
+@@ -0,0 +1,97 @@
++/*
++ * The olsr.org Optimized Link-State Routing daemon (olsrd)
++ *
++ * (c) by the OLSR project
++ *
++ * See our Git repository to find out who worked on this file
++ * and thus is a copyright holder on it.
++ *
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in
++ * the documentation and/or other materials provided with the
++ * distribution.
++ * * Neither the name of olsr.org, olsrd nor the names of its
++ * contributors may be used to endorse or promote products derived
++ * from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
++ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
++ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
++ * POSSIBILITY OF SUCH DAMAGE.
++ *
++ * Visit http://www.olsr.org for more information.
++ *
++ * If you find this software useful feel free to make a donation
++ * to the project. For more information see the website or contact
++ * the copyright holders.
++ *
++ */
++
++#include "olsrd_plugin.h"
++#include "olsrd_filtergw.h"
++#include "olsr.h"
++#include "builddata.h"
++#include <stdio.h>
++
++#define PLUGIN_NAME "OLSRD filtergw plugin"
++#define PLUGIN_INTERFACE_VERSION 5
++
++/**
++ * "Private" declarations
++ */
++
++static void my_init(void) __attribute__ ((constructor));
++static void my_fini(void) __attribute__ ((destructor));
++
++/*
++ * Defines the version of the plugin interface that is used
++ * THIS IS NOT THE VERSION OF YOUR PLUGIN!
++ * Do not alter unless you know what you are doing!
++ */
++int
++olsrd_plugin_interface_version(void)
++{
++ return PLUGIN_INTERFACE_VERSION;
++}
++
++/**
++ *Constructor
++ */
++void
++my_init(void)
++{
++ /* Print plugin info to stdout */
++ olsr_printf(0, "%s (%s)\n", PLUGIN_NAME, git_descriptor);
++}
++
++/**
++ *Destructor
++ */
++void
++my_fini(void)
++{
++ olsrd_plugin_fini();
++}
++
++/*
++ * Local Variables:
++ * c-basic-offset: 2
++ * indent-tabs-mode: nil
++ * End:
++ */
+--- /dev/null
++++ b/lib/filtergw/version-script.txt
+@@ -0,0 +1,10 @@
++VERS_1.0
++{
++ global:
++ olsrd_plugin_interface_version;
++ olsrd_plugin_init;
++ olsrd_get_plugin_parameters;
++
++ local:
++ *;
++};
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