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
diff --git a/build.symbian/pjlib_util.mmp b/build.symbian/pjlib_util.mmp
index af5b86f..9f8ed50 100644
--- a/build.symbian/pjlib_util.mmp
+++ b/build.symbian/pjlib_util.mmp
@@ -37,6 +37,7 @@
SOURCE hmac_md5.c
SOURCE hmac_sha1.c
SOURCE md5.c
+SOURCE pcap.c
SOURCE resolver.c
SOURCE scanner.c
SOURCE sha1.c
diff --git a/pjlib-util/build/Makefile b/pjlib-util/build/Makefile
index dd8a564..f3e1a5e 100644
--- a/pjlib-util/build/Makefile
+++ b/pjlib-util/build/Makefile
@@ -28,7 +28,7 @@
export PJLIB_UTIL_SRCDIR = ../src/pjlib-util
export PJLIB_UTIL_OBJS += $(OS_OBJS) $(M_OBJS) $(CC_OBJS) $(HOST_OBJS) \
base64.o crc32.o errno.o dns.o dns_dump.o getopt.o \
- hmac_md5.o hmac_sha1.o md5.o resolver.o \
+ hmac_md5.o hmac_sha1.o md5.o pcap.o resolver.o \
scanner.o sha1.o srv_resolver.o string.o stun_simple.o \
stun_simple_client.o xml.o
export PJLIB_UTIL_CFLAGS += $(_CFLAGS)
diff --git a/pjlib-util/build/pjlib_util.dsp b/pjlib-util/build/pjlib_util.dsp
index 825ede8..6578ab5 100644
--- a/pjlib-util/build/pjlib_util.dsp
+++ b/pjlib-util/build/pjlib_util.dsp
@@ -125,6 +125,10 @@
# End Source File
# Begin Source File
+SOURCE="..\src\pjlib-util\pcap.c"
+# End Source File
+# Begin Source File
+
SOURCE="..\src\pjlib-util\resolver.c"
# End Source File
# Begin Source File
@@ -211,6 +215,10 @@
# End Source File
# Begin Source File
+SOURCE="..\include\pjlib-util\pcap.h"
+# End Source File
+# Begin Source File
+
SOURCE="..\include\pjlib-util.h"
# End Source File
# Begin Source File
diff --git a/pjlib-util/build/pjlib_util.vcproj b/pjlib-util/build/pjlib_util.vcproj
index 2edaf65..41ed2c2 100644
--- a/pjlib-util/build/pjlib_util.vcproj
+++ b/pjlib-util/build/pjlib_util.vcproj
@@ -356,6 +356,10 @@
</FileConfiguration>
</File>
<File
+ RelativePath="..\src\pjlib-util\pcap.c"
+ >
+ </File>
+ <File
RelativePath="..\src\pjlib-util\resolver.c"
>
<FileConfiguration
@@ -625,6 +629,10 @@
>
</File>
<File
+ RelativePath="..\include\pjlib-util\pcap.h"
+ >
+ </File>
+ <File
RelativePath="..\include\pjlib-util.h"
>
</File>
diff --git a/pjlib-util/include/pjlib-util.h b/pjlib-util/include/pjlib-util.h
index fcafcf1..728d8fe 100644
--- a/pjlib-util/include/pjlib-util.h
+++ b/pjlib-util/include/pjlib-util.h
@@ -53,5 +53,7 @@
/* Old STUN */
#include <pjlib-util/stun_simple.h>
+/* PCAP */
+#include <pjlib-util/pcap.h>
#endif /* __PJLIB_UTIL_H__ */
diff --git a/pjlib-util/include/pjlib-util/pcap.h b/pjlib-util/include/pjlib-util/pcap.h
new file mode 100644
index 0000000..e27f570
--- /dev/null
+++ b/pjlib-util/include/pjlib-util/pcap.h
@@ -0,0 +1,178 @@
+/* $Id$ */
+/*
+ * 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
+ */
+#ifndef __PJLIB_UTIL_PCAP_H__
+#define __PJLIB_UTIL_PCAP_H__
+
+/**
+ * @file pcap.h
+ * @brief Simple PCAP file reader
+ */
+
+#include <pj/types.h>
+
+PJ_BEGIN_DECL
+
+/**
+ * @defgroup PJ_PCAP Simple PCAP file reader
+ * @ingroup PJLIB_UTIL
+ * @{
+ * This module describes simple utility to read PCAP file. It is not intended
+ * to support all PCAP features (that's what libpcap is for!), but it can
+ * be useful for example to playback or stream PCAP contents.
+ */
+
+/**
+ * Enumeration to describe supported data link types.
+ */
+typedef enum pj_pcap_link_type
+{
+ /** Ethernet data link */
+ PJ_PCAP_LINK_TYPE_ETH = 1
+
+} pj_pcap_link_type;
+
+
+/**
+ * Enumeration to describe supported protocol types.
+ */
+typedef enum pj_pcap_proto_type
+{
+ /** UDP protocol */
+ PJ_PCAP_PROTO_TYPE_UDP = 17
+
+} pj_pcap_proto_type;
+
+
+/**
+ * This structure describes the filter to be used when reading packets from
+ * a PCAP file. The filter is used to select what packets can be returned
+ * to a read operation.
+ */
+typedef struct pj_pcap_filter
+{
+ /**
+ * Select data link type, or zero to include any supported data links.
+ */
+ pj_pcap_link_type link;
+
+ /**
+ * Select protocol, or zero to include all supported protocols.
+ */
+ pj_pcap_proto_type proto;
+
+ /**
+ * Specify source IP address of the packets, or zero to include packets
+ * from any IP addresses. Note that IP address here must be in
+ * network byte order.
+ */
+ pj_uint32_t ip_src;
+
+ /**
+ * Specify destination IP address of the packets, or zero to include packets
+ * destined to any IP addresses. Note that IP address here must be in
+ * network byte order.
+ */
+ pj_uint32_t ip_dst;
+
+ /**
+ * Specify source port of the packets, or zero to include packets with
+ * any source port number. Note that the port number must be in network
+ * byte order.
+ */
+ pj_uint16_t src_port;
+
+ /**
+ * Specify destination port of the packets, or zero to include packets with
+ * any destination port number. Note that the port number must be in network
+ * byte order.
+ */
+ pj_uint16_t dst_port;
+
+} pj_pcap_filter;
+
+
+/** Opaque declaration for PCAP file */
+typedef struct pj_pcap_file pj_pcap_file;
+
+
+/**
+ * Initialize filter with default values. The default value is to allow
+ * any packets.
+ *
+ * @param filter Filter to be initialized.
+ */
+PJ_DECL(void) pj_pcap_filter_default(pj_pcap_filter *filter);
+
+/**
+ * Open PCAP file.
+ *
+ * @param pool Pool to allocate memory.
+ * @param path File/path name.
+ * @param p_file Pointer to receive PCAP file handle.
+ *
+ * @return PJ_SUCCESS if file can be opened successfully.
+ */
+PJ_DECL(pj_status_t) pj_pcap_open(pj_pool_t *pool,
+ const char *path,
+ pj_pcap_file **p_file);
+
+/**
+ * Close PCAP file.
+ *
+ * @param file PCAP file handle.
+ *
+ * @return PJ_SUCCESS on success, or the appropriate error code.
+ */
+PJ_DECL(pj_status_t) pj_pcap_close(pj_pcap_file *file);
+
+/**
+ * Configure filter for reading the file.
+ *
+ * @param file PCAP file handle.
+ * @param filter The filter.
+ *
+ * @return PJ_SUCCESS on success, or the appropriate error code.
+ */
+PJ_DECL(pj_status_t) pj_pcap_set_filter(pj_pcap_file *file,
+ const pj_pcap_filter *filter);
+
+/**
+ * Read UDP payload from the next packet in the PCAP file.
+ *
+ * @param file PCAP file handle.
+ * @param udp_payload Buffer to receive the UDP payload.
+ * @param udp_payload_size On input, specify the size of the buffer.
+ * On output, it will be filled with the actual size
+ * of the payload as read from the packet.
+ *
+ * @return PJ_SUCCESS on success, or the appropriate error code.
+ */
+PJ_DECL(pj_status_t) pj_pcap_read_udp(pj_pcap_file *file,
+ pj_uint8_t *udp_payload,
+ pj_size_t *udp_payload_size);
+
+
+/**
+ * @}
+ */
+
+PJ_END_DECL
+
+#endif /* __PJLIB_UTIL_PCAP_H__ */
+
diff --git a/pjlib-util/src/pjlib-util/pcap.c b/pjlib-util/src/pjlib-util/pcap.c
new file mode 100644
index 0000000..6be6af3
--- /dev/null
+++ b/pjlib-util/src/pjlib-util/pcap.c
@@ -0,0 +1,307 @@
+#include <pjlib-util/pcap.h>
+#include <pj/assert.h>
+#include <pj/errno.h>
+#include <pj/file_io.h>
+#include <pj/pool.h>
+#include <pj/sock.h>
+#include <pj/string.h>
+
+
+typedef struct pj_pcap_hdr
+{
+ pj_uint32_t magic_number; /* magic number */
+ pj_uint16_t version_major; /* major version number */
+ pj_uint16_t version_minor; /* minor version number */
+ pj_int32_t thiszone; /* GMT to local correction */
+ pj_uint32_t sigfigs; /* accuracy of timestamps */
+ pj_uint32_t snaplen; /* max length of captured packets, in octets */
+ pj_uint32_t network; /* data link type */
+} pj_pcap_hdr;
+
+typedef struct pj_pcap_rec_hdr
+{
+ pj_uint32_t ts_sec; /* timestamp seconds */
+ pj_uint32_t ts_usec; /* timestamp microseconds */
+ pj_uint32_t incl_len; /* number of octets of packet saved in file */
+ pj_uint32_t orig_len; /* actual length of packet */
+} pj_pcap_rec_hdr;
+
+typedef struct pj_pcap_eth_hdr
+{
+ pj_uint8_t dest[6];
+ pj_uint8_t src[6];
+ pj_uint16_t len;
+} pj_pcap_eth_hdr;
+
+typedef struct pj_pcap_ip_hdr
+{
+ pj_uint8_t v_ihl;
+ pj_uint8_t tos;
+ pj_uint16_t len;
+ pj_uint16_t id;
+ pj_uint16_t flags_fragment;
+ pj_uint8_t ttl;
+ pj_uint8_t proto;
+ pj_uint16_t csum;
+ pj_uint32_t ip_src;
+ pj_uint32_t ip_dst;
+} pj_pcap_ip_hdr;
+
+typedef struct pj_pcap_udp_hdr
+{
+ pj_uint16_t src_port;
+ pj_uint16_t dst_port;
+ pj_uint16_t len;
+ pj_uint16_t csum;
+} pj_pcap_udp_hdr;
+
+
+/* Implementation of pcap file */
+struct pj_pcap_file
+{
+ pj_oshandle_t fd;
+ pj_bool_t swap;
+ pj_pcap_hdr hdr;
+ pj_pcap_filter filter;
+};
+
+/* Init default filter */
+PJ_DEF(void) pj_pcap_filter_default(pj_pcap_filter *filter)
+{
+ pj_bzero(filter, sizeof(*filter));
+}
+
+/* Open pcap file */
+PJ_DEF(pj_status_t) pj_pcap_open(pj_pool_t *pool,
+ const char *path,
+ pj_pcap_file **p_file)
+{
+ pj_pcap_file *file;
+ pj_ssize_t sz;
+ pj_status_t status;
+
+ PJ_ASSERT_RETURN(pool && path && p_file, PJ_EINVAL);
+
+ file = PJ_POOL_ZALLOC_T(pool, pj_pcap_file);
+
+ status = pj_file_open(pool, path, PJ_O_RDONLY, &file->fd);
+ if (status != PJ_SUCCESS)
+ return status;
+
+ /* Read file pcap header */
+ sz = sizeof(file->hdr);
+ status = pj_file_read(file->fd, &file->hdr, &sz);
+ if (status != PJ_SUCCESS) {
+ pj_file_close(file->fd);
+ return status;
+ }
+
+ /* Check magic number */
+ if (file->hdr.magic_number == 0xa1b2c3d4) {
+ file->swap = PJ_FALSE;
+ } else if (file->hdr.magic_number == 0xd4c3b2a1) {
+ file->swap = PJ_TRUE;
+ file->hdr.network = pj_ntohl(file->hdr.network);
+ } else {
+ /* Not PCAP file */
+ pj_file_close(file->fd);
+ return PJ_EINVALIDOP;
+ }
+
+ *p_file = file;
+ return PJ_SUCCESS;
+}
+
+/* Close pcap file */
+PJ_DEF(pj_status_t) pj_pcap_close(pj_pcap_file *file)
+{
+ PJ_ASSERT_RETURN(file, PJ_EINVAL);
+ return pj_file_close(file->fd);
+}
+
+/* Setup filter */
+PJ_DEF(pj_status_t) pj_pcap_set_filter(pj_pcap_file *file,
+ const pj_pcap_filter *fil)
+{
+ PJ_ASSERT_RETURN(file && fil, PJ_EINVAL);
+ pj_memcpy(&file->filter, fil, sizeof(pj_pcap_filter));
+ return PJ_SUCCESS;
+}
+
+/* Read file */
+static pj_status_t read_file(pj_pcap_file *file,
+ void *buf,
+ pj_ssize_t *sz)
+{
+ pj_status_t status;
+ status = pj_file_read(file->fd, buf, sz);
+ if (status != PJ_SUCCESS)
+ return status;
+ if (*sz == 0)
+ return PJ_EEOF;
+ return PJ_SUCCESS;
+}
+
+static pj_status_t skip(pj_oshandle_t fd, pj_off_t bytes)
+{
+ pj_status_t status;
+ status = pj_file_setpos(fd, bytes, PJ_SEEK_CUR);
+ if (status != PJ_SUCCESS)
+ return status;
+ return PJ_SUCCESS;
+}
+
+
+#define SKIP_PKT() \
+ if (rec_incl > sz_read) { \
+ status = skip(file->fd, rec_incl-sz_read);\
+ if (status != PJ_SUCCESS) \
+ return status; \
+ }
+
+/* Read UDP packet */
+PJ_DEF(pj_status_t) pj_pcap_read_udp(pj_pcap_file *file,
+ pj_uint8_t *udp_payload,
+ pj_size_t *udp_payload_size)
+{
+ PJ_ASSERT_RETURN(file && udp_payload && udp_payload_size, PJ_EINVAL);
+ PJ_ASSERT_RETURN(*udp_payload_size, PJ_EINVAL);
+
+ /* Check data link type in PCAP file header */
+ if ((file->filter.link &&
+ file->hdr.network != (pj_uint32_t)file->filter.link) ||
+ file->hdr.network != PJ_PCAP_LINK_TYPE_ETH)
+ {
+ /* Link header other than Ethernet is not supported for now */
+ return PJ_ENOTSUP;
+ }
+
+ /* Loop until we have the packet */
+ for (;;) {
+ union {
+ pj_pcap_rec_hdr rec;
+ pj_pcap_eth_hdr eth;
+ pj_pcap_ip_hdr ip;
+ pj_pcap_udp_hdr udp;
+ } tmp;
+ unsigned rec_incl;
+ pj_ssize_t sz;
+ unsigned sz_read = 0;
+ pj_status_t status;
+
+ /* Read PCAP packet header */
+ sz = sizeof(tmp.rec);
+ status = read_file(file, &tmp.rec, &sz);
+ if (status != PJ_SUCCESS)
+ return status;
+
+ rec_incl = tmp.rec.incl_len;
+
+ /* Swap byte ordering */
+ if (file->swap) {
+ tmp.rec.incl_len = pj_ntohl(tmp.rec.incl_len);
+ tmp.rec.orig_len = pj_ntohl(tmp.rec.orig_len);
+ tmp.rec.ts_sec = pj_ntohl(tmp.rec.ts_sec);
+ tmp.rec.ts_usec = pj_ntohl(tmp.rec.ts_usec);
+ }
+
+ /* Read link layer header */
+ switch (file->hdr.network) {
+ case PJ_PCAP_LINK_TYPE_ETH:
+ sz = sizeof(tmp.eth);
+ status = read_file(file, &tmp.eth, &sz);
+ break;
+ default:
+ return PJ_ENOTSUP;
+ }
+
+ if (status != PJ_SUCCESS)
+ return status;
+
+ sz_read += sz;
+
+ /* 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 */
+}
+
+
diff --git a/pjproject.dsw b/pjproject.dsw
index 7054e5a..795a17d 100644
--- a/pjproject.dsw
+++ b/pjproject.dsw
@@ -3,7 +3,7 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-Project: "pjlib"=".\pjlib\build\pjlib.dsp" - Package Owner=<4>
+Project: "pjlib"=.\pjlib\build\pjlib.dsp - Package Owner=<4>
Package=<5>
{{{
@@ -111,7 +111,7 @@
###############################################################################
-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 @@
###############################################################################
-Project: "pjmedia"=".\pjmedia\build\pjmedia.dsp" - Package Owner=<4>
+Project: "pjmedia"=.\pjmedia\build\pjmedia.dsp - Package Owner=<4>
Package=<5>
{{{
@@ -168,7 +168,7 @@
###############################################################################
-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 @@
###############################################################################
-Project: "pjnath"=".\pjnath\build\pjnath.dsp" - Package Owner=<4>
+Project: "pjnath"=.\pjnath\build\pjnath.dsp - Package Owner=<4>
Package=<5>
{{{
@@ -192,7 +192,7 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
###############################################################################
-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 @@
Begin Project Dependency
Project_Dep_Name pjnath
End Project Dependency
+ Begin Project Dependency
+ Project_Dep_Name libsrtp
+ End Project Dependency
}}}
###############################################################################
@@ -404,11 +407,14 @@
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>
{{{
diff --git a/pjsip-apps/build/Samples-vc.mak b/pjsip-apps/build/Samples-vc.mak
index 0d862e3..f7df993 100644
--- a/pjsip-apps/build/Samples-vc.mak
+++ b/pjsip-apps/build/Samples-vc.mak
@@ -54,6 +54,7 @@
$(BINDIR)\encdec.exe \
$(BINDIR)\level.exe \
$(BINDIR)\mix.exe \
+ $(BINDIR)\pcaputil.exe\
$(BINDIR)\pjsip-perf.exe \
$(BINDIR)\playfile.exe \
$(BINDIR)\playsine.exe\
diff --git a/pjsip-apps/build/Samples.mak b/pjsip-apps/build/Samples.mak
index 3a81f3c..f96f77f 100644
--- a/pjsip-apps/build/Samples.mak
+++ b/pjsip-apps/build/Samples.mak
@@ -18,6 +18,7 @@
level \
mix \
pjsip-perf \
+ pcaputil \
playfile \
playsine \
recfile \
diff --git a/pjsip-apps/build/sample_debug.dsp b/pjsip-apps/build/sample_debug.dsp
index 03c49d1..c788f77 100644
--- a/pjsip-apps/build/sample_debug.dsp
+++ b/pjsip-apps/build/sample_debug.dsp
@@ -90,6 +90,13 @@
# Begin Source File
SOURCE=..\src\samples\debug.c
+
+!IF "$(CFG)" == "sample_debug - Win32 Release"
+
+!ELSEIF "$(CFG)" == "sample_debug - Win32 Debug"
+
+!ENDIF
+
# End Source File
# End Group
# Begin Group "Header Files"
diff --git a/pjsip-apps/build/samples.dsp b/pjsip-apps/build/samples.dsp
index 3bdca95..c5742ca 100644
--- a/pjsip-apps/build/samples.dsp
+++ b/pjsip-apps/build/samples.dsp
@@ -118,6 +118,10 @@
# 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\tonegen.c
# End Source File
-# Begin Source File
-
-SOURCE=..\src\samples\transportpausetest.c
-# End Source File
# End Group
# Begin Group "Header Files"
diff --git a/pjsip-apps/src/samples/pcaputil.c b/pjsip-apps/src/samples/pcaputil.c
new file mode 100644
index 0000000..83a7ead
--- /dev/null
+++ b/pjsip-apps/src/samples/pcaputil.c
@@ -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;
+}
+