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https://origsvn.digium.com/svn/asterisk/branches/1.8 ........ r291192 | dvossel | 2010-10-11 16:38:39 -0500 (Mon, 11 Oct 2010) | 19 lines Gtalk enhancements and general code cleanup. This patch includes several chan_gtalk enhancements. Two new gtalk.conf options have been added, externip and stunadd. Setting externip allows us to manually specify what the external IP address is outside of a NAT environment. Setting the stunaddr option to a valid stun server allows for that external ip to be retrieved via a STUN server automatically. This external IP is then advertised during call setup as a possible candidate. I have also attempted to clean up chan_gtalk's code so it meets our coding guidelines. During this cleanup I noticed several things that need to be done in the code and made a TODO section at the top of the file. ........ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@291193 65c4cc65-6c06-0410-ace0-fbb531ad65f3
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2008, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*!
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* \file stun.h
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* \brief STUN support.
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*
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* STUN is defined in RFC 3489.
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*/
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#ifndef _ASTERISK_STUN_H
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#define _ASTERISK_STUN_H
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#include "asterisk/network.h"
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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static const int STANDARD_STUN_PORT = 3478;
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enum ast_stun_result {
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AST_STUN_IGNORE = 0,
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AST_STUN_ACCEPT,
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};
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struct stun_attr;
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/*! \brief Generic STUN request
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* send a generic stun request to the server specified.
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* \param s the socket used to send the request
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* \param dst the address of the STUN server
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* \param username if non null, add the username in the request
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* \param answer if non null, the function waits for a response and
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* puts here the externally visible address.
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* \return 0 on success, other values on error.
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* The interface it may change in the future.
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*/
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int ast_stun_request(int s, struct sockaddr_in *dst, const char *username, struct sockaddr_in *answer);
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/*! \brief callback type to be invoked on stun responses. */
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typedef int (stun_cb_f)(struct stun_attr *attr, void *arg);
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/*! \brief handle an incoming STUN message.
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*
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* Do some basic sanity checks on packet size and content,
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* try to extract a bit of information, and possibly reply.
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* At the moment this only processes BIND requests, and returns
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* the externally visible address of the request.
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* If a callback is specified, invoke it with the attribute.
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*/
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int ast_stun_handle_packet(int s, struct sockaddr_in *src, unsigned char *data, size_t len, stun_cb_f *stun_cb, void *arg);
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#if defined(__cplusplus) || defined(c_plusplus)
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}
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#endif
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#endif /* _ASTERISK_STUN_H */
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