Ticket #465: utility to read PCAP file and sample application to read RTP files from PCAP file, decode the payload, and write the PCM output to WAV file
git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1765 74dad513-b988-da41-8d7b-12977e46ad98
This commit is contained in:
Benny Prijono
parent
012fe0a2c4
commit
0f85672335
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@ -37,6 +37,7 @@ SOURCE getopt.c
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SOURCE hmac_md5.c
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SOURCE hmac_sha1.c
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SOURCE md5.c
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SOURCE pcap.c
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SOURCE resolver.c
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SOURCE scanner.c
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SOURCE sha1.c
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@ -28,7 +28,7 @@ export _LDFLAGS := $(subst /,$(HOST_PSEP),$(PJLIB_UTIL_LIB)) \
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export PJLIB_UTIL_SRCDIR = ../src/pjlib-util
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export PJLIB_UTIL_OBJS += $(OS_OBJS) $(M_OBJS) $(CC_OBJS) $(HOST_OBJS) \
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base64.o crc32.o errno.o dns.o dns_dump.o getopt.o \
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hmac_md5.o hmac_sha1.o md5.o resolver.o \
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hmac_md5.o hmac_sha1.o md5.o pcap.o resolver.o \
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scanner.o sha1.o srv_resolver.o string.o stun_simple.o \
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stun_simple_client.o xml.o
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export PJLIB_UTIL_CFLAGS += $(_CFLAGS)
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@ -125,6 +125,10 @@ SOURCE="..\src\pjlib-util\md5.c"
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# End Source File
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# Begin Source File
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SOURCE="..\src\pjlib-util\pcap.c"
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# End Source File
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# Begin Source File
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SOURCE="..\src\pjlib-util\resolver.c"
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# End Source File
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# Begin Source File
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@ -211,6 +215,10 @@ SOURCE="..\include\pjlib-util\md5.h"
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# End Source File
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# Begin Source File
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SOURCE="..\include\pjlib-util\pcap.h"
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# End Source File
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# Begin Source File
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SOURCE="..\include\pjlib-util.h"
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# End Source File
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# Begin Source File
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@ -355,6 +355,10 @@
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/>
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</FileConfiguration>
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</File>
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<File
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RelativePath="..\src\pjlib-util\pcap.c"
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>
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</File>
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<File
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RelativePath="..\src\pjlib-util\resolver.c"
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>
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@ -624,6 +628,10 @@
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RelativePath="..\include\pjlib-util\md5.h"
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>
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</File>
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<File
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RelativePath="..\include\pjlib-util\pcap.h"
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>
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</File>
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<File
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RelativePath="..\include\pjlib-util.h"
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>
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@ -53,5 +53,7 @@
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/* Old STUN */
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#include <pjlib-util/stun_simple.h>
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/* PCAP */
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#include <pjlib-util/pcap.h>
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#endif /* __PJLIB_UTIL_H__ */
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@ -0,0 +1,178 @@
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/* $Id$ */
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/*
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* Copyright (C)2003-2007 Benny Prijono <benny@prijono.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __PJLIB_UTIL_PCAP_H__
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#define __PJLIB_UTIL_PCAP_H__
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/**
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* @file pcap.h
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* @brief Simple PCAP file reader
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*/
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#include <pj/types.h>
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PJ_BEGIN_DECL
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/**
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* @defgroup PJ_PCAP Simple PCAP file reader
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* @ingroup PJLIB_UTIL
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* @{
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* This module describes simple utility to read PCAP file. It is not intended
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* to support all PCAP features (that's what libpcap is for!), but it can
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* be useful for example to playback or stream PCAP contents.
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*/
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/**
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* Enumeration to describe supported data link types.
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*/
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typedef enum pj_pcap_link_type
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{
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/** Ethernet data link */
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PJ_PCAP_LINK_TYPE_ETH = 1
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} pj_pcap_link_type;
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/**
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* Enumeration to describe supported protocol types.
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*/
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typedef enum pj_pcap_proto_type
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{
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/** UDP protocol */
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PJ_PCAP_PROTO_TYPE_UDP = 17
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} pj_pcap_proto_type;
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/**
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* This structure describes the filter to be used when reading packets from
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* a PCAP file. The filter is used to select what packets can be returned
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* to a read operation.
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*/
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typedef struct pj_pcap_filter
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{
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/**
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* Select data link type, or zero to include any supported data links.
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*/
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pj_pcap_link_type link;
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/**
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* Select protocol, or zero to include all supported protocols.
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*/
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pj_pcap_proto_type proto;
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/**
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* Specify source IP address of the packets, or zero to include packets
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* from any IP addresses. Note that IP address here must be in
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* network byte order.
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*/
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pj_uint32_t ip_src;
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/**
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* Specify destination IP address of the packets, or zero to include packets
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* destined to any IP addresses. Note that IP address here must be in
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* network byte order.
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*/
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pj_uint32_t ip_dst;
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/**
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* Specify source port of the packets, or zero to include packets with
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* any source port number. Note that the port number must be in network
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* byte order.
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*/
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pj_uint16_t src_port;
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/**
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* Specify destination port of the packets, or zero to include packets with
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* any destination port number. Note that the port number must be in network
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* byte order.
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*/
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pj_uint16_t dst_port;
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} pj_pcap_filter;
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/** Opaque declaration for PCAP file */
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typedef struct pj_pcap_file pj_pcap_file;
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/**
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* Initialize filter with default values. The default value is to allow
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* any packets.
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*
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* @param filter Filter to be initialized.
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*/
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PJ_DECL(void) pj_pcap_filter_default(pj_pcap_filter *filter);
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/**
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* Open PCAP file.
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*
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* @param pool Pool to allocate memory.
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* @param path File/path name.
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* @param p_file Pointer to receive PCAP file handle.
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*
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* @return PJ_SUCCESS if file can be opened successfully.
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*/
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PJ_DECL(pj_status_t) pj_pcap_open(pj_pool_t *pool,
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const char *path,
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pj_pcap_file **p_file);
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/**
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* Close PCAP file.
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*
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* @param file PCAP file handle.
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*
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* @return PJ_SUCCESS on success, or the appropriate error code.
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*/
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PJ_DECL(pj_status_t) pj_pcap_close(pj_pcap_file *file);
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/**
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* Configure filter for reading the file.
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*
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* @param file PCAP file handle.
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* @param filter The filter.
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*
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* @return PJ_SUCCESS on success, or the appropriate error code.
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*/
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PJ_DECL(pj_status_t) pj_pcap_set_filter(pj_pcap_file *file,
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const pj_pcap_filter *filter);
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/**
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* Read UDP payload from the next packet in the PCAP file.
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*
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* @param file PCAP file handle.
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* @param udp_payload Buffer to receive the UDP payload.
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* @param udp_payload_size On input, specify the size of the buffer.
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* On output, it will be filled with the actual size
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* of the payload as read from the packet.
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*
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* @return PJ_SUCCESS on success, or the appropriate error code.
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*/
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PJ_DECL(pj_status_t) pj_pcap_read_udp(pj_pcap_file *file,
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pj_uint8_t *udp_payload,
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pj_size_t *udp_payload_size);
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/**
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* @}
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*/
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PJ_END_DECL
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#endif /* __PJLIB_UTIL_PCAP_H__ */
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@ -0,0 +1,307 @@
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#include <pjlib-util/pcap.h>
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#include <pj/assert.h>
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#include <pj/errno.h>
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#include <pj/file_io.h>
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#include <pj/pool.h>
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#include <pj/sock.h>
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#include <pj/string.h>
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typedef struct pj_pcap_hdr
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{
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pj_uint32_t magic_number; /* magic number */
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pj_uint16_t version_major; /* major version number */
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pj_uint16_t version_minor; /* minor version number */
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pj_int32_t thiszone; /* GMT to local correction */
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pj_uint32_t sigfigs; /* accuracy of timestamps */
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pj_uint32_t snaplen; /* max length of captured packets, in octets */
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pj_uint32_t network; /* data link type */
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} pj_pcap_hdr;
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typedef struct pj_pcap_rec_hdr
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{
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pj_uint32_t ts_sec; /* timestamp seconds */
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pj_uint32_t ts_usec; /* timestamp microseconds */
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pj_uint32_t incl_len; /* number of octets of packet saved in file */
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pj_uint32_t orig_len; /* actual length of packet */
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} pj_pcap_rec_hdr;
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typedef struct pj_pcap_eth_hdr
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{
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pj_uint8_t dest[6];
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pj_uint8_t src[6];
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pj_uint16_t len;
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} pj_pcap_eth_hdr;
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typedef struct pj_pcap_ip_hdr
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{
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pj_uint8_t v_ihl;
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pj_uint8_t tos;
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pj_uint16_t len;
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pj_uint16_t id;
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pj_uint16_t flags_fragment;
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pj_uint8_t ttl;
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pj_uint8_t proto;
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pj_uint16_t csum;
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pj_uint32_t ip_src;
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pj_uint32_t ip_dst;
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} pj_pcap_ip_hdr;
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typedef struct pj_pcap_udp_hdr
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{
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pj_uint16_t src_port;
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pj_uint16_t dst_port;
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pj_uint16_t len;
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pj_uint16_t csum;
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} pj_pcap_udp_hdr;
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/* Implementation of pcap file */
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struct pj_pcap_file
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{
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pj_oshandle_t fd;
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pj_bool_t swap;
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pj_pcap_hdr hdr;
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pj_pcap_filter filter;
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};
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/* Init default filter */
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PJ_DEF(void) pj_pcap_filter_default(pj_pcap_filter *filter)
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{
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pj_bzero(filter, sizeof(*filter));
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}
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/* Open pcap file */
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PJ_DEF(pj_status_t) pj_pcap_open(pj_pool_t *pool,
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const char *path,
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pj_pcap_file **p_file)
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{
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pj_pcap_file *file;
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pj_ssize_t sz;
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pj_status_t status;
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PJ_ASSERT_RETURN(pool && path && p_file, PJ_EINVAL);
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file = PJ_POOL_ZALLOC_T(pool, pj_pcap_file);
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status = pj_file_open(pool, path, PJ_O_RDONLY, &file->fd);
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if (status != PJ_SUCCESS)
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return status;
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/* Read file pcap header */
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sz = sizeof(file->hdr);
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status = pj_file_read(file->fd, &file->hdr, &sz);
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if (status != PJ_SUCCESS) {
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pj_file_close(file->fd);
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return status;
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}
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/* Check magic number */
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if (file->hdr.magic_number == 0xa1b2c3d4) {
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file->swap = PJ_FALSE;
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} else if (file->hdr.magic_number == 0xd4c3b2a1) {
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file->swap = PJ_TRUE;
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file->hdr.network = pj_ntohl(file->hdr.network);
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} else {
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/* Not PCAP file */
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pj_file_close(file->fd);
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return PJ_EINVALIDOP;
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}
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*p_file = file;
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return PJ_SUCCESS;
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}
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/* Close pcap file */
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PJ_DEF(pj_status_t) pj_pcap_close(pj_pcap_file *file)
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{
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PJ_ASSERT_RETURN(file, PJ_EINVAL);
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return pj_file_close(file->fd);
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}
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/* Setup filter */
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PJ_DEF(pj_status_t) pj_pcap_set_filter(pj_pcap_file *file,
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const pj_pcap_filter *fil)
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{
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PJ_ASSERT_RETURN(file && fil, PJ_EINVAL);
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pj_memcpy(&file->filter, fil, sizeof(pj_pcap_filter));
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return PJ_SUCCESS;
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}
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/* Read file */
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static pj_status_t read_file(pj_pcap_file *file,
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void *buf,
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pj_ssize_t *sz)
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{
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pj_status_t status;
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status = pj_file_read(file->fd, buf, sz);
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if (status != PJ_SUCCESS)
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return status;
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if (*sz == 0)
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return PJ_EEOF;
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return PJ_SUCCESS;
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}
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static pj_status_t skip(pj_oshandle_t fd, pj_off_t bytes)
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{
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pj_status_t status;
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status = pj_file_setpos(fd, bytes, PJ_SEEK_CUR);
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if (status != PJ_SUCCESS)
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return status;
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return PJ_SUCCESS;
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}
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#define SKIP_PKT() \
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if (rec_incl > sz_read) { \
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status = skip(file->fd, rec_incl-sz_read);\
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if (status != PJ_SUCCESS) \
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return status; \
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}
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/* Read UDP packet */
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PJ_DEF(pj_status_t) pj_pcap_read_udp(pj_pcap_file *file,
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pj_uint8_t *udp_payload,
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pj_size_t *udp_payload_size)
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{
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PJ_ASSERT_RETURN(file && udp_payload && udp_payload_size, PJ_EINVAL);
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PJ_ASSERT_RETURN(*udp_payload_size, PJ_EINVAL);
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/* Check data link type in PCAP file header */
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if ((file->filter.link &&
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file->hdr.network != (pj_uint32_t)file->filter.link) ||
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file->hdr.network != PJ_PCAP_LINK_TYPE_ETH)
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{
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/* Link header other than Ethernet is not supported for now */
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return PJ_ENOTSUP;
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}
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/* Loop until we have the packet */
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for (;;) {
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union {
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pj_pcap_rec_hdr rec;
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pj_pcap_eth_hdr eth;
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pj_pcap_ip_hdr ip;
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pj_pcap_udp_hdr udp;
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} tmp;
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unsigned rec_incl;
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pj_ssize_t sz;
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unsigned sz_read = 0;
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pj_status_t status;
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/* Read PCAP packet header */
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sz = sizeof(tmp.rec);
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status = read_file(file, &tmp.rec, &sz);
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if (status != PJ_SUCCESS)
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return status;
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rec_incl = tmp.rec.incl_len;
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/* Swap byte ordering */
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if (file->swap) {
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tmp.rec.incl_len = pj_ntohl(tmp.rec.incl_len);
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tmp.rec.orig_len = pj_ntohl(tmp.rec.orig_len);
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tmp.rec.ts_sec = pj_ntohl(tmp.rec.ts_sec);
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tmp.rec.ts_usec = pj_ntohl(tmp.rec.ts_usec);
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}
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/* Read link layer header */
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switch (file->hdr.network) {
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case PJ_PCAP_LINK_TYPE_ETH:
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sz = sizeof(tmp.eth);
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status = read_file(file, &tmp.eth, &sz);
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break;
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default:
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return PJ_ENOTSUP;
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}
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if (status != PJ_SUCCESS)
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return status;
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sz_read += sz;
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||||
/* Read IP header */
|
||||
sz = sizeof(tmp.ip);
|
||||
status = read_file(file, &tmp.ip, &sz);
|
||||
if (status != PJ_SUCCESS)
|
||||
return status;
|
||||
|
||||
sz_read += sz;
|
||||
|
||||
/* Skip if IP source mismatch */
|
||||
if (file->filter.ip_src && tmp.ip.ip_src != file->filter.ip_src) {
|
||||
SKIP_PKT();
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Skip if IP destination mismatch */
|
||||
if (file->filter.ip_dst && tmp.ip.ip_dst != file->filter.ip_dst) {
|
||||
SKIP_PKT();
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Skip if proto mismatch */
|
||||
if (file->filter.proto && tmp.ip.proto != file->filter.proto) {
|
||||
SKIP_PKT();
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Read transport layer header */
|
||||
switch (tmp.ip.proto) {
|
||||
case PJ_PCAP_PROTO_TYPE_UDP:
|
||||
sz = sizeof(tmp.udp);
|
||||
status = read_file(file, &tmp.udp, &sz);
|
||||
if (status != PJ_SUCCESS)
|
||||
return status;
|
||||
|
||||
sz_read += sz;
|
||||
|
||||
/* Skip if source port mismatch */
|
||||
if (file->filter.src_port &&
|
||||
tmp.udp.src_port != file->filter.src_port)
|
||||
{
|
||||
SKIP_PKT();
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Skip if destination port mismatch */
|
||||
if (file->filter.dst_port &&
|
||||
tmp.udp.dst_port != file->filter.dst_port)
|
||||
{
|
||||
SKIP_PKT();
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Calculate payload size */
|
||||
sz = pj_ntohs(tmp.udp.len) - sizeof(tmp.udp);
|
||||
break;
|
||||
default:
|
||||
SKIP_PKT();
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Check if payload fits the buffer */
|
||||
if (sz > (pj_ssize_t)*udp_payload_size) {
|
||||
SKIP_PKT();
|
||||
return PJ_ETOOSMALL;
|
||||
}
|
||||
|
||||
/* Read the payload */
|
||||
status = read_file(file, udp_payload, &sz);
|
||||
if (status != PJ_SUCCESS)
|
||||
return status;
|
||||
|
||||
sz_read += sz;
|
||||
|
||||
*udp_payload_size = sz;
|
||||
|
||||
/* Check that we've read all the packets */
|
||||
PJ_ASSERT_RETURN(sz_read == rec_incl, PJ_EBUG);
|
||||
|
||||
return PJ_SUCCESS;
|
||||
}
|
||||
|
||||
/* Does not reach here */
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -3,7 +3,7 @@ Microsoft Developer Studio Workspace File, Format Version 6.00
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libgsmcodec"=".\THIRD_PARTY\BUILD\GSM\libgsmcodec.dsp" - Package Owner=<4>
|
||||
Project: "libgsmcodec"=.\THIRD_PARTY\BUILD\GSM\libgsmcodec.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -15,7 +15,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libilbccodec"=".\THIRD_PARTY\BUILD\ILBC\libilbccodec.dsp" - Package Owner=<4>
|
||||
Project: "libilbccodec"=.\THIRD_PARTY\BUILD\ILBC\libilbccodec.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -27,7 +27,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libmilenage"=".\third_party\build\milenage\libmilenage.dsp" - Package Owner=<4>
|
||||
Project: "libmilenage"=.\third_party\build\milenage\libmilenage.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -39,7 +39,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libportaudio"=".\THIRD_PARTY\BUILD\PORTAUDIO\libportaudio.dsp" - Package Owner=<4>
|
||||
Project: "libportaudio"=.\THIRD_PARTY\BUILD\PORTAUDIO\libportaudio.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -51,7 +51,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libresample"=".\THIRD_PARTY\BUILD\RESAMPLE\libresample.dsp" - Package Owner=<4>
|
||||
Project: "libresample"=.\THIRD_PARTY\BUILD\RESAMPLE\libresample.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -63,7 +63,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libresample_dll"=".\THIRD_PARTY\BUILD\RESAMPLE\libresample_dll.dsp" - Package Owner=<4>
|
||||
Project: "libresample_dll"=.\THIRD_PARTY\BUILD\RESAMPLE\libresample_dll.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -75,7 +75,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libspeex"=".\third_party\build\speex\libspeex.dsp" - Package Owner=<4>
|
||||
Project: "libspeex"=.\third_party\build\speex\libspeex.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -87,7 +87,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "libsrtp"=".\third_party\build\srtp\libsrtp.dsp" - Package Owner=<4>
|
||||
Project: "libsrtp"=.\third_party\build\srtp\libsrtp.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -99,7 +99,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjlib"=".\pjlib\build\pjlib.dsp" - Package Owner=<4>
|
||||
Project: "pjlib"=.\pjlib\build\pjlib.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -111,7 +111,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjlib_test"=".\pjlib\build\pjlib_test.dsp" - Package Owner=<4>
|
||||
Project: "pjlib_test"=.\pjlib\build\pjlib_test.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -156,7 +156,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjmedia"=".\pjmedia\build\pjmedia.dsp" - Package Owner=<4>
|
||||
Project: "pjmedia"=.\pjmedia\build\pjmedia.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -168,7 +168,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjmedia_codec"=".\pjmedia\build\pjmedia_codec.dsp" - Package Owner=<4>
|
||||
Project: "pjmedia_codec"=.\pjmedia\build\pjmedia_codec.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -180,7 +180,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjnath"=".\pjnath\build\pjnath.dsp" - Package Owner=<4>
|
||||
Project: "pjnath"=.\pjnath\build\pjnath.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -192,7 +192,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjsip_core"=".\pjsip\build\pjsip_core.dsp" - Package Owner=<4>
|
||||
Project: "pjsip_core"=.\pjsip\build\pjsip_core.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -204,7 +204,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjsip_simple"=".\pjsip\build\pjsip_simple.dsp" - Package Owner=<4>
|
||||
Project: "pjsip_simple"=.\pjsip\build\pjsip_simple.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -216,7 +216,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjsip_ua"=".\pjsip\build\pjsip_ua.dsp" - Package Owner=<4>
|
||||
Project: "pjsip_ua"=.\pjsip\build\pjsip_ua.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -288,7 +288,7 @@ Package=<4>
|
|||
|
||||
###############################################################################
|
||||
|
||||
Project: "pjsua_lib"=".\pjsip\build\pjsua_lib.dsp" - Package Owner=<4>
|
||||
Project: "pjsua_lib"=.\pjsip\build\pjsua_lib.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
@ -350,6 +350,9 @@ Package=<4>
|
|||
Begin Project Dependency
|
||||
Project_Dep_Name pjnath
|
||||
End Project Dependency
|
||||
Begin Project Dependency
|
||||
Project_Dep_Name libsrtp
|
||||
End Project Dependency
|
||||
}}}
|
||||
|
||||
###############################################################################
|
||||
|
|
@ -404,11 +407,14 @@ Package=<4>
|
|||
Begin Project Dependency
|
||||
Project_Dep_Name pjnath
|
||||
End Project Dependency
|
||||
Begin Project Dependency
|
||||
Project_Dep_Name libsrtp
|
||||
End Project Dependency
|
||||
}}}
|
||||
|
||||
###############################################################################
|
||||
|
||||
Project: "test_pjsip"=".\pjsip\build\test_pjsip.dsp" - Package Owner=<4>
|
||||
Project: "test_pjsip"=.\pjsip\build\test_pjsip.dsp - Package Owner=<4>
|
||||
|
||||
Package=<5>
|
||||
{{{
|
||||
|
|
|
|||
|
|
@ -54,6 +54,7 @@ SAMPLES = $(BINDIR)\confsample.exe \
|
|||
$(BINDIR)\encdec.exe \
|
||||
$(BINDIR)\level.exe \
|
||||
$(BINDIR)\mix.exe \
|
||||
$(BINDIR)\pcaputil.exe\
|
||||
$(BINDIR)\pjsip-perf.exe \
|
||||
$(BINDIR)\playfile.exe \
|
||||
$(BINDIR)\playsine.exe\
|
||||
|
|
|
|||
|
|
@ -18,6 +18,7 @@ SAMPLES := confsample \
|
|||
level \
|
||||
mix \
|
||||
pjsip-perf \
|
||||
pcaputil \
|
||||
playfile \
|
||||
playsine \
|
||||
recfile \
|
||||
|
|
|
|||
|
|
@ -90,6 +90,13 @@ LINK32=link.exe
|
|||
# Begin Source File
|
||||
|
||||
SOURCE=..\src\samples\debug.c
|
||||
|
||||
!IF "$(CFG)" == "sample_debug - Win32 Release"
|
||||
|
||||
!ELSEIF "$(CFG)" == "sample_debug - Win32 Debug"
|
||||
|
||||
!ENDIF
|
||||
|
||||
# End Source File
|
||||
# End Group
|
||||
# Begin Group "Header Files"
|
||||
|
|
|
|||
|
|
@ -118,6 +118,10 @@ SOURCE=..\src\samples\mix.c
|
|||
# End Source File
|
||||
# Begin Source File
|
||||
|
||||
SOURCE=..\src\samples\pcaputil.c
|
||||
# End Source File
|
||||
# Begin Source File
|
||||
|
||||
SOURCE="..\src\samples\pjsip-perf.c"
|
||||
# End Source File
|
||||
# Begin Source File
|
||||
|
|
@ -184,10 +188,6 @@ SOURCE=..\src\samples\strerror.c
|
|||
|
||||
SOURCE=..\src\samples\tonegen.c
|
||||
# End Source File
|
||||
# Begin Source File
|
||||
|
||||
SOURCE=..\src\samples\transportpausetest.c
|
||||
# End Source File
|
||||
# End Group
|
||||
# Begin Group "Header Files"
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,361 @@
|
|||
/* $Id$ */
|
||||
/*
|
||||
* Copyright (C) 2003-2007 Benny Prijono <benny@prijono.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
#include <pjlib.h>
|
||||
#include <pjlib-util.h>
|
||||
#include <pjmedia.h>
|
||||
#include <pjmedia-codec.h>
|
||||
|
||||
static const char *USAGE =
|
||||
"pcaputil [options] INPUT OUTPUT\n"
|
||||
"\n"
|
||||
" Convert captured RTP packets in PCAP file to WAV or stream it\n"
|
||||
" to remote destination.\n"
|
||||
"\n"
|
||||
"INPUT is the PCAP file name/path\n"
|
||||
"\n"
|
||||
"Options to filter packets from PCAP file:\n"
|
||||
" --src-ip=IP Only include packets from this source address\n"
|
||||
" --dst-ip=IP Only include packets destined to this address\n"
|
||||
" --src-port=port Only include packets from this source port number\n"
|
||||
" --dst-port=port Only include packets destined to this port number\n"
|
||||
"\n"
|
||||
"Options for saving to WAV file:\n"
|
||||
""
|
||||
" OUTPUT is WAV file: Set output to WAV file. The program will decode the\n"
|
||||
" RTP contents to the specified WAV file using codec\n"
|
||||
" that is available in PJMEDIA, and optionally decrypt\n"
|
||||
" the content using the SRTP crypto and keys below.\n"
|
||||
" --srtp-crypto=TAG, -c Set crypto to be used to decrypt SRTP packets. Valid\n"
|
||||
" tags are: \n"
|
||||
" AES_CM_128_HMAC_SHA1_80 \n"
|
||||
" AES_CM_128_HMAC_SHA1_32\n"
|
||||
" --srtp-key=KEY, -k Set the base64 key to decrypt SRTP packets.\n"
|
||||
"\n"
|
||||
" Example:\n"
|
||||
" pcaputil file.pcap output.wav\n"
|
||||
" pcaputil -c AES_CM_128_HMAC_SHA1_80 \\\n"
|
||||
" -k VLDONbsbGl2Puqy+0PV7w/uGfpSPKFevDpxGsxN3 \\\n"
|
||||
" file.pcap output.wav\n"
|
||||
;
|
||||
|
||||
static pj_caching_pool cp;
|
||||
static pj_pool_t *pool;
|
||||
static pjmedia_endpt *mept;
|
||||
static pj_pcap_file *pcap;
|
||||
static pjmedia_port *wav;
|
||||
static pjmedia_transport *srtp;
|
||||
|
||||
static void err_exit(const char *title, pj_status_t status)
|
||||
{
|
||||
if (status != PJ_SUCCESS) {
|
||||
char errmsg[PJ_ERR_MSG_SIZE];
|
||||
pj_strerror(status, errmsg, sizeof(errmsg));
|
||||
printf("Error: %s: %s\n", title, errmsg);
|
||||
} else {
|
||||
printf("Error: %s\n", title);
|
||||
}
|
||||
|
||||
if (srtp) pjmedia_transport_close(srtp);
|
||||
if (wav) pjmedia_port_destroy(wav);
|
||||
if (pcap) pj_pcap_close(pcap);
|
||||
if (mept) pjmedia_endpt_destroy(mept);
|
||||
if (pool) pj_pool_release(pool);
|
||||
pj_caching_pool_destroy(&cp);
|
||||
pj_shutdown();
|
||||
|
||||
exit(1);
|
||||
}
|
||||
|
||||
#define T(op) do { \
|
||||
status = op; \
|
||||
if (status != PJ_SUCCESS) \
|
||||
err_exit(#op, status); \
|
||||
} while (0)
|
||||
|
||||
|
||||
static void read_rtp(pj_uint8_t *buf, pj_size_t bufsize,
|
||||
pjmedia_rtp_hdr **rtp,
|
||||
pj_uint8_t **payload,
|
||||
unsigned *payload_size)
|
||||
{
|
||||
pj_size_t sz = bufsize;
|
||||
pj_status_t status;
|
||||
|
||||
status = pj_pcap_read_udp(pcap, buf, &sz);
|
||||
if (status != PJ_SUCCESS)
|
||||
err_exit("Error reading PCAP file", status);
|
||||
|
||||
if (sz < sizeof(pjmedia_rtp_hdr) + 10) {
|
||||
err_exit("Invalid RTP packet", PJ_SUCCESS);
|
||||
}
|
||||
|
||||
/* Decrypt SRTP */
|
||||
if (srtp) {
|
||||
int len = sz;
|
||||
T(pjmedia_transport_srtp_decrypt_pkt(srtp, PJ_TRUE, buf, &len));
|
||||
sz = len;
|
||||
}
|
||||
|
||||
*rtp = (pjmedia_rtp_hdr*)buf;
|
||||
*payload = (pj_uint8_t*) (buf + sizeof(pjmedia_rtp_hdr));
|
||||
*payload_size = sz - sizeof(pjmedia_rtp_hdr);
|
||||
}
|
||||
|
||||
static void pcap2wav(const char *wav_filename, const pj_str_t *srtp_crypto,
|
||||
const pj_str_t *srtp_key)
|
||||
{
|
||||
struct pkt
|
||||
{
|
||||
pj_uint8_t buffer[320];
|
||||
pjmedia_rtp_hdr *rtp;
|
||||
pj_uint8_t *payload;
|
||||
unsigned payload_len;
|
||||
} pkt0;
|
||||
pjmedia_codec_mgr *cmgr;
|
||||
pjmedia_codec_info *ci;
|
||||
pjmedia_codec_param param;
|
||||
pjmedia_codec *codec;
|
||||
unsigned samples_per_frame;
|
||||
pj_status_t status;
|
||||
|
||||
/* Initialize all codecs */
|
||||
#if PJMEDIA_HAS_SPEEX_CODEC
|
||||
T( pjmedia_codec_speex_init(mept, 0, 10, 10) );
|
||||
#endif /* PJMEDIA_HAS_SPEEX_CODEC */
|
||||
|
||||
#if PJMEDIA_HAS_ILBC_CODEC
|
||||
T( pjmedia_codec_ilbc_init(mept, 30) );
|
||||
#endif /* PJMEDIA_HAS_ILBC_CODEC */
|
||||
|
||||
#if PJMEDIA_HAS_GSM_CODEC
|
||||
T( pjmedia_codec_gsm_init(mept) );
|
||||
#endif /* PJMEDIA_HAS_GSM_CODEC */
|
||||
|
||||
#if PJMEDIA_HAS_G711_CODEC
|
||||
T( pjmedia_codec_g711_init(mept) );
|
||||
#endif /* PJMEDIA_HAS_G711_CODEC */
|
||||
|
||||
#if PJMEDIA_HAS_L16_CODEC
|
||||
T( pjmedia_codec_l16_init(mept, 0) );
|
||||
#endif /* PJMEDIA_HAS_L16_CODEC */
|
||||
|
||||
/* Create SRTP transport is needed */
|
||||
if (srtp_crypto->slen) {
|
||||
pjmedia_srtp_crypto crypto;
|
||||
|
||||
pj_bzero(&crypto, sizeof(crypto));
|
||||
crypto.key = *srtp_key;
|
||||
crypto.name = *srtp_crypto;
|
||||
T( pjmedia_transport_srtp_create(mept, NULL, NULL, &srtp) );
|
||||
T( pjmedia_transport_srtp_start(srtp, &crypto, &crypto) );
|
||||
}
|
||||
|
||||
/* Read first packet */
|
||||
read_rtp(pkt0.buffer, sizeof(pkt0.buffer), &pkt0.rtp,
|
||||
&pkt0.payload, &pkt0.payload_len);
|
||||
|
||||
cmgr = pjmedia_endpt_get_codec_mgr(mept);
|
||||
|
||||
/* Get codec info and param for the specified payload type */
|
||||
T( pjmedia_codec_mgr_get_codec_info(cmgr, pkt0.rtp->pt, &ci) );
|
||||
T( pjmedia_codec_mgr_get_default_param(cmgr, ci, ¶m) );
|
||||
|
||||
/* Alloc and init codec */
|
||||
T( pjmedia_codec_mgr_alloc_codec(cmgr, ci, &codec) );
|
||||
T( codec->op->init(codec, pool) );
|
||||
T( codec->op->open(codec, ¶m) );
|
||||
|
||||
/* Open WAV file */
|
||||
samples_per_frame = ci->clock_rate * param.info.frm_ptime / 1000;
|
||||
T( pjmedia_wav_writer_port_create(pool, wav_filename,
|
||||
ci->clock_rate, ci->channel_cnt,
|
||||
samples_per_frame,
|
||||
param.info.pcm_bits_per_sample, 0, 0,
|
||||
&wav) );
|
||||
|
||||
/* Loop reading PCAP and writing WAV file */
|
||||
for (;;) {
|
||||
struct pkt pkt1;
|
||||
pj_timestamp ts;
|
||||
pjmedia_frame frames[16], pcm_frame;
|
||||
short pcm[320];
|
||||
unsigned i, frame_cnt;
|
||||
long samples_cnt, ts_gap;
|
||||
|
||||
pj_assert(sizeof(pcm) >= samples_per_frame);
|
||||
|
||||
/* Parse first packet */
|
||||
ts.u64 = 0;
|
||||
frame_cnt = PJ_ARRAY_SIZE(frames);
|
||||
T( codec->op->parse(codec, pkt0.payload, pkt0.payload_len, &ts,
|
||||
&frame_cnt, frames) );
|
||||
|
||||
/* Decode and write to WAV file */
|
||||
samples_cnt = 0;
|
||||
for (i=0; i<frame_cnt; ++i) {
|
||||
pjmedia_frame pcm_frame;
|
||||
|
||||
pcm_frame.buf = pcm;
|
||||
pcm_frame.size = samples_per_frame * 2;
|
||||
|
||||
T( codec->op->decode(codec, &frames[i], pcm_frame.size, &pcm_frame) );
|
||||
T( pjmedia_port_put_frame(wav, &pcm_frame) );
|
||||
samples_cnt += samples_per_frame;
|
||||
}
|
||||
|
||||
/* Read next packet */
|
||||
read_rtp(pkt1.buffer, sizeof(pkt1.buffer), &pkt1.rtp,
|
||||
&pkt1.payload, &pkt1.payload_len);
|
||||
|
||||
/* Fill in the gap (if any) between pkt0 and pkt1 */
|
||||
ts_gap = pj_ntohl(pkt1.rtp->ts) - pj_ntohl(pkt0.rtp->ts) -
|
||||
samples_cnt;
|
||||
while (ts_gap >= (long)samples_per_frame) {
|
||||
|
||||
pcm_frame.buf = pcm;
|
||||
pcm_frame.size = samples_per_frame * 2;
|
||||
|
||||
if (codec->op->recover) {
|
||||
T( codec->op->recover(codec, pcm_frame.size, &pcm_frame) );
|
||||
} else {
|
||||
pj_bzero(pcm_frame.buf, pcm_frame.size);
|
||||
}
|
||||
|
||||
T( pjmedia_port_put_frame(wav, &pcm_frame) );
|
||||
ts_gap -= samples_per_frame;
|
||||
}
|
||||
|
||||
/* Next */
|
||||
pkt0 = pkt1;
|
||||
pkt0.rtp = (pjmedia_rtp_hdr*)pkt0.buffer;
|
||||
pkt0.payload = pkt0.buffer + (pkt1.payload - pkt1.buffer);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
pj_str_t input, output, wav, srtp_crypto, srtp_key;
|
||||
pj_pcap_filter filter;
|
||||
pj_status_t status;
|
||||
|
||||
enum { OPT_SRC_IP = 1, OPT_DST_IP, OPT_SRC_PORT, OPT_DST_PORT };
|
||||
struct pj_getopt_option long_options[] = {
|
||||
{ "srtp-crypto", 1, 0, 'c' },
|
||||
{ "srtp-key", 1, 0, 'k' },
|
||||
{ "src-ip", 1, 0, OPT_SRC_IP },
|
||||
{ "dst-ip", 1, 0, OPT_DST_IP },
|
||||
{ "src-port", 1, 0, OPT_SRC_PORT },
|
||||
{ "dst-port", 1, 0, OPT_DST_PORT },
|
||||
{ NULL, 0, 0, 0}
|
||||
};
|
||||
int c;
|
||||
int option_index;
|
||||
char key_bin[32];
|
||||
|
||||
srtp_crypto.slen = srtp_key.slen = 0;
|
||||
|
||||
pj_pcap_filter_default(&filter);
|
||||
filter.link = PJ_PCAP_LINK_TYPE_ETH;
|
||||
filter.proto = PJ_PCAP_PROTO_TYPE_UDP;
|
||||
|
||||
/* Parse arguments */
|
||||
pj_optind = 0;
|
||||
while((c=pj_getopt_long(argc,argv, "c:k:", long_options, &option_index))!=-1) {
|
||||
switch (c) {
|
||||
case 'c':
|
||||
srtp_crypto = pj_str(pj_optarg);
|
||||
break;
|
||||
case 'k':
|
||||
{
|
||||
int key_len = sizeof(key_bin);
|
||||
srtp_key = pj_str(pj_optarg);
|
||||
if (pj_base64_decode(&srtp_key, (pj_uint8_t*)key_bin, &key_len)) {
|
||||
puts("Error: invalid key");
|
||||
return 1;
|
||||
}
|
||||
srtp_key.ptr = key_bin;
|
||||
srtp_key.slen = key_len;
|
||||
}
|
||||
break;
|
||||
case OPT_SRC_IP:
|
||||
{
|
||||
pj_str_t t = pj_str(pj_optarg);
|
||||
pj_in_addr a = pj_inet_addr(&t);
|
||||
filter.ip_src = a.s_addr;
|
||||
}
|
||||
break;
|
||||
case OPT_DST_IP:
|
||||
{
|
||||
pj_str_t t = pj_str(pj_optarg);
|
||||
pj_in_addr a = pj_inet_addr(&t);
|
||||
filter.ip_dst = a.s_addr;
|
||||
}
|
||||
break;
|
||||
case OPT_SRC_PORT:
|
||||
filter.src_port = pj_htons((pj_uint16_t)atoi(pj_optarg));
|
||||
break;
|
||||
case OPT_DST_PORT:
|
||||
filter.dst_port = pj_htons((pj_uint16_t)atoi(pj_optarg));
|
||||
break;
|
||||
default:
|
||||
puts("Error: invalid option");
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (pj_optind != argc - 2) {
|
||||
puts(USAGE);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!(srtp_crypto.slen) != !(srtp_key.slen)) {
|
||||
puts("Error: both SRTP crypto and key must be specified");
|
||||
puts(USAGE);
|
||||
return 1;
|
||||
}
|
||||
|
||||
input = pj_str(argv[pj_optind]);
|
||||
output = pj_str(argv[pj_optind+1]);
|
||||
wav = pj_str(".wav");
|
||||
|
||||
T( pj_init() );
|
||||
|
||||
pj_caching_pool_init(&cp, NULL, 0);
|
||||
pool = pj_pool_create(&cp.factory, "pcaputil", 1000, 1000, NULL);
|
||||
|
||||
T( pjlib_util_init() );
|
||||
T( pjmedia_endpt_create(&cp.factory, NULL, 0, &mept) );
|
||||
|
||||
T( pj_pcap_open(pool, input.ptr, &pcap) );
|
||||
T( pj_pcap_set_filter(pcap, &filter) );
|
||||
|
||||
if (pj_stristr(&output, &wav)) {
|
||||
pcap2wav(output.ptr, &srtp_crypto, &srtp_key);
|
||||
} else {
|
||||
err_exit("invalid output file", PJ_EINVAL);
|
||||
}
|
||||
|
||||
pjmedia_endpt_destroy(mept);
|
||||
pj_pool_release(pool);
|
||||
pj_caching_pool_destroy(&cp);
|
||||
pj_shutdown();
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue