+++ /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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