Adding switch_nat options for NATPMP and uPNP mapping of ports for auto nat traversal. Not used for anything yet.
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@13513 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Brian West
parent
334a8adfe8
commit
a19dad9155
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@ -91,6 +91,7 @@ src/switch_ivr_play_say.c \
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src/switch_ivr_menu.c \
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src/switch_ivr.c \
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src/switch_stun.c\
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src/switch_nat.c\
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src/switch_log.c\
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src/switch_xml.c\
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src/switch_xml_config.c\
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@ -142,6 +143,7 @@ src/include/switch_types.h\
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src/include/switch_utils.h\
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src/include/switch_rtp.h\
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src/include/switch_stun.h\
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src/include/switch_nat.h\
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src/include/switch_log.h\
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src/include/switch_xml.h\
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src/include/switch_xml_config.h\
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@ -129,6 +129,7 @@
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#include "switch_core_event_hook.h"
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#include "switch_scheduler.h"
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#include "switch_config.h"
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#include "switch_nat.h"
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#include <libteletone.h>
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/** \mainpage FreeSWITCH
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@ -0,0 +1,79 @@
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2009, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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* Brian K. West <brian@freeswitch.org>
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*
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*
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* switch_nat.h NAT Traversal via NAT-PMP or uPNP
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*
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*/
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/*!
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\defgroup nat1 NAT code
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\ingroup core1
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\{
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*/
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#ifndef _SWITCH_NAT_H
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#define _SWITCH_NAT_H
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SWITCH_BEGIN_EXTERN_C
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typedef enum {
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SWITCH_NAT_TYPE_NONE,
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SWITCH_NAT_TYPE_PMP,
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SWITCH_NAT_TYPE_UPNP
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} switch_nat_type_t;
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typedef enum {
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SWITCH_NAT_UDP,
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SWITCH_NAT_TCP
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} switch_nat_ip_proto_t;
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/*!
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\brief Initilize the NAT Traversal System
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\param pool the memory pool to use for long term allocations
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\note Generally called by the core_init
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*/
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SWITCH_DECLARE(void) switch_nat_init(switch_memory_pool_t *pool);
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SWITCH_DECLARE(void) switch_nat_shutdown(void);
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SWITCH_DECLARE(switch_status_t) switch_nat_add_mapping(switch_port_t port, switch_nat_ip_proto_t proto);
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SWITCH_DECLARE(switch_status_t) switch_nat_add_mapping(switch_port_t port, switch_nat_ip_proto_t proto);
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SWITCH_END_EXTERN_C
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#endif
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4:
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*/
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@ -37,6 +37,7 @@
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#include <switch.h>
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#include <switch_stun.h>
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#include <switch_nat.h>
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#include <switch_version.h>
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#include "private/switch_core_pvt.h"
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#ifndef WIN32
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@ -1160,6 +1161,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_init(switch_core_flag_t flags, switc
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switch_scheduler_task_thread_start();
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switch_rtp_init(runtime.memory_pool);
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switch_nat_init(runtime.memory_pool);
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runtime.running = 1;
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@ -1558,6 +1560,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_destroy(void)
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switch_scheduler_task_thread_stop();
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switch_rtp_shutdown();
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switch_nat_shutdown();
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switch_xml_destroy();
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CONSOLE, "Closing Event Engine.\n");
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@ -0,0 +1,322 @@
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2009, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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* Brian K. West <brian@freeswitch.org>
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*
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*
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* switch_nat.c NAT Traversal via NAT-PMP or uPNP
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*
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*/
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#include <switch.h>
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#include "../libs/miniupnpc/miniwget.h"
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#include "../libs/miniupnpc/miniupnpc.h"
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#include "../libs/miniupnpc/upnpcommands.h"
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#include "../libs/miniupnpc/upnperrors.h"
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#include "../libs/libnatpmp/natpmp.h"
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typedef struct {
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switch_memory_pool_t *pool;
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switch_nat_type_t nat_type;
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natpmp_t natpmp;
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struct UPNPUrls urls;
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struct IGDdatas data;
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char pub_addr[16];
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char pvt_addr[16];
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} nat_globals_t;
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static nat_globals_t nat_globals;
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static int init_upnp (void)
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{
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struct UPNPDev * devlist;
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struct UPNPDev * dev;
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char * descXML;
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int descXMLsize = 0;
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const char * multicastif = 0;
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const char * minissdpdpath = 0;
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int r = -2;
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memset(&nat_globals.urls, 0, sizeof(struct UPNPUrls));
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memset(&nat_globals.data, 0, sizeof(struct IGDdatas));
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devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0);
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if (devlist) {
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dev = devlist;
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while (dev) {
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if (strstr (dev->st, "InternetGatewayDevice"))
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break;
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dev = dev->pNext;
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}
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if (!dev) {
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dev = devlist; /* defaulting to first device */
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}
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descXML = miniwget(dev->descURL, &descXMLsize);
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if (descXML) {
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parserootdesc (descXML, descXMLsize, &nat_globals.data);
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free (descXML); descXML = 0;
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GetUPNPUrls (&nat_globals.urls, &nat_globals.data, dev->descURL);
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}
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freeUPNPDevlist(devlist);
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}
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if ((r = UPNP_GetExternalIPAddress(nat_globals.urls.controlURL,
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nat_globals.data.servicetype,
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nat_globals.pub_addr)) == UPNPCOMMAND_SUCCESS) {
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nat_globals.nat_type = SWITCH_NAT_TYPE_UPNP;
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return 0;
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}
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return -2;
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}
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static int init_pmp(void)
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{
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int r = 0;
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natpmpresp_t response;
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char *pubaddr = NULL;
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fd_set fds;
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struct timeval timeout;
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initnatpmp(&nat_globals.natpmp);
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r = sendpublicaddressrequest(&nat_globals.natpmp);
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if (r < 0) {
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goto end;
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}
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do {
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FD_ZERO(&fds);
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FD_SET(nat_globals.natpmp.s, &fds);
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getnatpmprequesttimeout(&nat_globals.natpmp, &timeout);
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select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
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r = readnatpmpresponseorretry(&nat_globals.natpmp, &response);
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} while(r == NATPMP_TRYAGAIN);
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if (r < 0) {
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goto end;
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}
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pubaddr = inet_ntoa(response.pnu.publicaddress.addr);
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switch_set_string(nat_globals.pub_addr, pubaddr);
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nat_globals.nat_type = SWITCH_NAT_TYPE_PMP;
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if (r) {
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closenatpmp(&nat_globals.natpmp);
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}
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end:
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return r;
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}
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SWITCH_DECLARE(void) switch_nat_init(switch_memory_pool_t *pool)
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{
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memset(&nat_globals, 0, sizeof(nat_globals));
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nat_globals.pool = pool;
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switch_find_local_ip(nat_globals.pvt_addr, sizeof(nat_globals.pvt_addr), AF_INET);
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init_pmp();
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if (!nat_globals.nat_type) {
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init_upnp();
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}
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if (nat_globals.nat_type) {
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switch_core_set_variable("nat_public_addr", nat_globals.pub_addr);
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switch_core_set_variable("nat_private_addr", nat_globals.pvt_addr);
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switch_core_set_variable("nat_type", nat_globals.nat_type == SWITCH_NAT_TYPE_PMP ? "pmp" : "upnp");
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No NAT Detected!\n");
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}
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}
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static switch_status_t switch_nat_add_mapping_pmp(switch_port_t port, switch_nat_ip_proto_t proto)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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natpmpresp_t response;
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int r;
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if (proto == SWITCH_NAT_TCP) {
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sendnewportmappingrequest(&nat_globals.natpmp, NATPMP_PROTOCOL_TCP, port, port, 31104000);
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} else if(proto == SWITCH_NAT_UDP) {
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sendnewportmappingrequest(&nat_globals.natpmp, NATPMP_PROTOCOL_UDP, port, port, 31104000);
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}
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do {
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fd_set fds;
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struct timeval timeout;
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FD_ZERO(&fds);
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FD_SET(nat_globals.natpmp.s, &fds);
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getnatpmprequesttimeout(&nat_globals.natpmp, &timeout);
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select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
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r = readnatpmpresponseorretry(&nat_globals.natpmp, &response);
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} while(r == NATPMP_TRYAGAIN);
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "mapped public port %hu protocol %s to localport %hu\n",
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response.pnu.newportmapping.mappedpublicport,
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response.type == NATPMP_RESPTYPE_UDPPORTMAPPING ? "UDP" :
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(response.type == NATPMP_RESPTYPE_TCPPORTMAPPING ? "TCP" : "UNKNOWN"),
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response.pnu.newportmapping.privateport);
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return status;
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}
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static switch_status_t switch_nat_add_mapping_upnp(switch_port_t port, switch_nat_ip_proto_t proto)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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char port_str[16];
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int r = -1;
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sprintf(port_str, "%d", port);
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if (proto == SWITCH_NAT_TCP) {
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r = UPNP_AddPortMapping(nat_globals.urls.controlURL, nat_globals.data.servicetype, port_str, port_str, nat_globals.pvt_addr, 0, "TCP", 0);
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} else if(proto == SWITCH_NAT_UDP) {
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r = UPNP_AddPortMapping(nat_globals.urls.controlURL, nat_globals.data.servicetype, port_str, port_str, nat_globals.pvt_addr, 0, "UDP", 0);
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}
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if (r == 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "mapped public port %s protocol %s to localport %s\n", port_str,
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(proto == SWITCH_NAT_TCP) ? "TCP" : (proto == SWITCH_NAT_UDP ? "UDP" : "UNKNOWN"), port_str);
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status = SWITCH_STATUS_SUCCESS;
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}
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return status;
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}
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static switch_status_t switch_nat_del_mapping_pmp(switch_port_t port, switch_nat_ip_proto_t proto)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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natpmpresp_t response;
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int r;
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if (proto == SWITCH_NAT_TCP) {
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sendnewportmappingrequest(&nat_globals.natpmp, NATPMP_PROTOCOL_TCP, port, port, 0);
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} else if(proto == SWITCH_NAT_UDP) {
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sendnewportmappingrequest(&nat_globals.natpmp, NATPMP_PROTOCOL_UDP, port, port, 0);
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}
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do {
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fd_set fds;
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struct timeval timeout;
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FD_ZERO(&fds);
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FD_SET(nat_globals.natpmp.s, &fds);
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getnatpmprequesttimeout(&nat_globals.natpmp, &timeout);
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select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
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r = readnatpmpresponseorretry(&nat_globals.natpmp, &response);
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} while(r == NATPMP_TRYAGAIN);
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "unmapped public port %hu protocol %s to localport %hu\n",
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response.pnu.newportmapping.mappedpublicport,
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response.type == NATPMP_RESPTYPE_UDPPORTMAPPING ? "UDP" :
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(response.type == NATPMP_RESPTYPE_TCPPORTMAPPING ? "TCP" : "UNKNOWN"),
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response.pnu.newportmapping.privateport);
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return status;
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}
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static switch_status_t switch_nat_del_mapping_upnp(switch_port_t port, switch_nat_ip_proto_t proto)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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char port_str[16];
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int r = -1;
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sprintf(port_str, "%d", port);
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if (proto == SWITCH_NAT_TCP) {
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UPNP_DeletePortMapping(nat_globals.urls.controlURL, nat_globals.data.servicetype, port_str, "TCP", 0);
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} else if(proto == SWITCH_NAT_UDP) {
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UPNP_DeletePortMapping(nat_globals.urls.controlURL, nat_globals.data.servicetype, port_str, "UDP", 0);
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}
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if (r == 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "mapped public port %s protocol %s to localport %s\n", port_str,
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(proto == SWITCH_NAT_TCP) ? "TCP" : (proto == SWITCH_NAT_UDP ? "UDP" : "UNKNOWN"), port_str);
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status = SWITCH_STATUS_SUCCESS;
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}
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return status;
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}
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SWITCH_DECLARE(switch_status_t) switch_nat_add_mapping(switch_port_t port, switch_nat_ip_proto_t proto)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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switch (nat_globals.nat_type) {
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case SWITCH_NAT_TYPE_PMP:
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status = switch_nat_add_mapping_pmp(port, proto);
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break;
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case SWITCH_NAT_TYPE_UPNP:
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status = switch_nat_add_mapping_upnp(port, proto);
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break;
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default:
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break;
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}
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return status;
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}
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SWITCH_DECLARE(switch_status_t) switch_nat_del_mapping(switch_port_t port, switch_nat_ip_proto_t proto)
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{
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switch_status_t status = SWITCH_STATUS_FALSE;
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switch (nat_globals.nat_type) {
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case SWITCH_NAT_TYPE_PMP:
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status = switch_nat_del_mapping_pmp(port, proto);
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break;
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case SWITCH_NAT_TYPE_UPNP:
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status = switch_nat_del_mapping_upnp(port, proto);
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break;
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default:
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break;
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}
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return status;
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}
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SWITCH_DECLARE(void) switch_nat_shutdown(void)
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{
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if (nat_globals.nat_type == SWITCH_NAT_TYPE_PMP) {
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closenatpmp(&nat_globals.natpmp);
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}
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}
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||||
|
||||
/* For Emacs:
|
||||
* Local Variables:
|
||||
* mode:c
|
||||
* indent-tabs-mode:t
|
||||
* tab-width:4
|
||||
* c-basic-offset:4
|
||||
* End:
|
||||
* For VIM:
|
||||
* vim:set softtabstop=4 shiftwidth=4 tabstop=4:
|
||||
*/
|
||||
Loading…
Reference in New Issue