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res_hep/res_hep_pjsip: Add a HEPv3 capture agent module and a logger for PJSIP
This patch adds the following: (1) A new module, res_hep, which implements a generic packet capture agent for the Homer Encapsulation Protocol (HEP) version 3. Note that this code is based on a patch provided by Alexandr Dubovikov; I basically just wrapped it up, added configuration via the configuration framework, and threw in a taskprocessor. (2) A new module, res_hep_pjsip, which forwards all SIP message traffic that passes through the res_pjsip stack over to res_hep for encapsulation and transmission to a HEPv3 capture server. Much thanks to Alexandr for his Asterisk patch for this code and for a *lot* of patience waiting for me to port it to 12/trunk. Due to some dithering on my part, this has taken the better part of a year to port forward (I still blame CDRs for the delay). ASTERISK-23557 #close Review: https://reviewboard.asterisk.org/r/3207/ ........ Merged revisions 411534 from http://svn.asterisk.org/svn/asterisk/branches/12 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@411556 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matthew Jordan
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include/asterisk/res_hep.h
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include/asterisk/res_hep.h
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2014, Digium, Inc.
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*
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* Alexandr Dubovikov <alexandr.dubovikov@sipcapture.org>
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* Matt Jordan <mjordan@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
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* \brief Routines for integration with Homer using HEPv3
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*
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* \author Alexandr Dubovikov <alexandr.dubovikov@sipcapture.org>
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* \author Matt Jordan <mjordan@digium.com>
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*
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*/
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#ifndef _ASTERISK_RES_HEPV3_H
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#define _ASTERISK_RES_HEPV3_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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#include "asterisk/netsock2.h"
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/*! \brief HEPv3 Packet Capture Types */
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enum hepv3_capture_type {
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HEPV3_CAPTURE_TYPE_SIP = 0x01,
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HEPV3_CAPTURE_TYPE_H323 = 0x02,
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HEPV3_CAPTURE_TYPE_SDP = 0x03,
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HEPV3_CAPTURE_TYPE_RTP = 0x04,
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HEPV3_CAPTURE_TYPE_RTCP = 0x05,
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HEPV3_CAPTURE_TYPE_MGCP = 0x06,
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HEPV3_CAPTURE_TYPE_MEGACO = 0x07,
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HEPV3_CAPTURE_TYPE_M2UA = 0x08,
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HEPV3_CAPTURE_TYPE_M3UA = 0x09,
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HEPV3_CAPTURE_TYPE_IAX = 0x10,
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};
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/*! \brief HEPv3 Capture Info */
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struct hepv3_capture_info {
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/*! The source address of the packet */
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struct ast_sockaddr src_addr;
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/*! The destination address of the packet */
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struct ast_sockaddr dst_addr;
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/*! The time the packet was captured */
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struct timeval capture_time;
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/*! The actual payload */
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void *payload;
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/*! Some UUID for the packet */
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char *uuid;
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/*! The \ref hepv3_capture_type packet type captured */
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enum hepv3_capture_type capture_type;
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/*! The size of the payload */
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size_t len;
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/*! If non-zero, the payload accompanying this capture info will be compressed */
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unsigned int zipped:1;
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};
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/*!
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* \brief Create a \ref hepv3_capture_info object
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*
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* This returned object is an ao2 reference counted object.
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*
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* Any attribute in the returned \ref hepv3_capture_info that is a
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* pointer should point to something that is allocated on the heap,
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* as it will be free'd when the \ref hepv3_capture_info object is
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* reclaimed.
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*
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* \param payload The payload to send to the HEP capture node
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* \param len Length of \ref payload
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*
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* \retval A \ref hepv3_capture_info ref counted object on success
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* \retval NULL on error
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*/
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struct hepv3_capture_info *hepv3_create_capture_info(const void *payload, size_t len);
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/*!
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* \brief Send a generic packet capture to HEPv3
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*
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* \param capture_info Information describing the packet. This
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* should be a reference counted object, created via
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* \ref hepv3_create_capture_info.
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*
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* Once this function is called, it assumes ownership of the
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* \ref capture_info object and steals the reference of the
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* object. Regardless of success or failure, the calling function
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* should assumed that this function will own the object.
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*
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* \retval 0 on success
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* \retval -1 on error
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*/
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int hepv3_send_packet(struct hepv3_capture_info *capture_info);
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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_RES_HEPV3_H */
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