Tea for two (or maybe thirty eight?)
This commit is contained in:
parent
7cfe6bb222
commit
7b3d3f7ef2
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@ -874,6 +874,7 @@ AC_CONFIG_FILES([Makefile
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src/mod/Makefile
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src/mod/applications/mod_enum/Makefile
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src/mod/applications/mod_expr/Makefile
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src/mod/applications/mod_fax/Makefile
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src/mod/applications/mod_stress/Makefile
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src/mod/applications/mod_t38gateway/Makefile
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src/mod/endpoints/mod_portaudio/Makefile
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@ -176,6 +176,8 @@ SWITCH_DECLARE(switch_port_t) switch_rtp_get_remote_port(switch_rtp_t *rtp_sessi
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SWITCH_DECLARE(void) switch_rtp_reset_media_timer(switch_rtp_t *rtp_session);
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SWITCH_DECLARE(void) switch_rtp_set_max_missed_packets(switch_rtp_t *rtp_session, uint32_t max);
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SWITCH_DECLARE(switch_status_t) switch_rtp_udptl_mode(switch_rtp_t *rtp_session);
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/*!
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\brief Assign a local address to the RTP session
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\param rtp_session an RTP session to assign the local address to
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@ -499,7 +499,6 @@ typedef enum {
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SWITCH_RTP_FLAG_GOOGLEHACK - Convert payload from 102 to 97
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SWITCH_RTP_FLAG_VAD - Enable VAD
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SWITCH_RTP_FLAG_BREAK - Stop what you are doing and return SWITCH_STATUS_BREAK
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SWITCH_RTP_FLAG_MINI - Use mini RTP when possible
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SWITCH_RTP_FLAG_DATAWAIT - Do not return from reads unless there is data even when non blocking
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SWITCH_RTP_FLAG_BUGGY_2833 - Emulate the bug in cisco equipment to allow interop
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SWITCH_RTP_FLAG_PASS_RFC2833 - Pass 2833 (ignore it)
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@ -518,7 +517,7 @@ typedef enum {
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SWITCH_RTP_FLAG_GOOGLEHACK = (1 << 8),
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SWITCH_RTP_FLAG_VAD = (1 << 9),
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SWITCH_RTP_FLAG_BREAK = (1 << 10),
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SWITCH_RTP_FLAG_MINI = (1 << 11),
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SWITCH_RTP_FLAG_UDPTL = (1 << 11),
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SWITCH_RTP_FLAG_DATAWAIT = (1 << 12),
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SWITCH_RTP_FLAG_BUGGY_2833 = (1 << 13),
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SWITCH_RTP_FLAG_PASS_RFC2833 = (1 << 14),
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@ -725,10 +724,13 @@ typedef enum {
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SWITCH_MESSAGE_INDICATE_APPLICATION_EXEC,
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SWITCH_MESSAGE_INDICATE_APPLICATION_EXEC_COMPLETE,
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SWITCH_MESSAGE_INDICATE_PHONE_EVENT,
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SWITCH_MESSAGE_INDICATE_T38_DESCRIPTION,
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SWITCH_MESSAGE_INDICATE_UDPTL_MODE,
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SWITCH_MESSAGE_INVALID
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} switch_core_session_message_types_t;
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typedef struct {
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uint16_t T38FaxVersion;
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uint32_t T38MaxBitRate;
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switch_bool_t T38FaxFillBitRemoval;
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switch_bool_t T38FaxTranscodingMMR;
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@ -1008,7 +1010,8 @@ typedef enum {
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typedef enum {
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CF_APP_TAGGED = (1 << 0)
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CF_APP_TAGGED = (1 << 0),
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CF_APP_T38 = (1 << 1)
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} switch_channel_app_flag_t;
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@ -1034,7 +1037,8 @@ typedef enum {
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SFF_RFC2833 = (1 << 4),
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SFF_PROXY_PACKET = (1 << 5),
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SFF_DYNAMIC = (1 << 6),
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SFF_ZRTP = (1 << 7)
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SFF_ZRTP = (1 << 7),
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SFF_UDPTL_PACKET = (1 << 8)
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} switch_frame_flag_enum_t;
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typedef uint32_t switch_frame_flag_t;
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@ -1,5 +1,7 @@
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/Makefile
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/Makefile.in
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/applications/mod_fax/Makefile
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/applications/mod_fax/Makefile.in
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/applications/mod_commands/Makefile
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/applications/mod_conference/Makefile
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/applications/mod_dptools/Makefile
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@ -1,26 +0,0 @@
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BASE=../../../..
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TIFF_DIR=$(switch_srcdir)/libs/tiff-3.8.2
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TIFF_BUILDDIR=$(switch_builddir)/libs/tiff-3.8.2
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TIFF_LA=$(TIFF_BUILDDIR)/libtiff/libtiff.la
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SPANDSP_DIR=$(switch_srcdir)/libs/spandsp
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SPANDSP_BUILDDIR=$(switch_builddir)/libs/spandsp
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SPANDSP_LA=$(SPANDSP_BUILDDIR)/src/libspandsp.la
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LOCAL_CFLAGS=-I$(SPANDSP_DIR)/src -I$(TIFF_DIR)/libtiff -I$(SPANDSP_BUILDDIR)/src -I$(TIFF_BUILDDIR)/libtiff
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LOCAL_LIBADD=$(SPANDSP_LA) $(TIFF_LA)
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LOCAL_LDFLAGS=-ljpeg
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include $(BASE)/build/modmake.rules
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$(MODNAME).lo: $(SPANDSP_LA) $(TIFF_LA)
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$(SPANDSP_LA): $(TIFF_LA) $(SPANDSP_DIR) $(SPANDSP_DIR)/.update
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cd $(SPANDSP_BUILDDIR) && $(MAKE) -j1
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$(TOUCH_TARGET)
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$(TIFF_LA): $(TIFF_DIR) $(TIFF_DIR)/.update
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cd $(TIFF_BUILDDIR) && $(MAKE) -j1
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$(TOUCH_TARGET)
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@ -0,0 +1,17 @@
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include $(top_srcdir)/build/modmake.rulesam
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MODNAME=mod_fax
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TIFF_DIR=$(switch_srcdir)/libs/tiff-3.8.2
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TIFF_BUILDDIR=$(switch_builddir)/libs/tiff-3.8.2
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TIFF_LA=$(TIFF_BUILDDIR)/libtiff/libtiff.la
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SPANDSP_DIR=$(switch_srcdir)/libs/spandsp
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SPANDSP_BUILDDIR=$(switch_builddir)/libs/spandsp
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SPANDSP_LA=$(SPANDSP_BUILDDIR)/src/libspandsp.la
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mod_LTLIBRARIES = mod_fax.la
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mod_fax_la_SOURCES = mod_fax.c ../mod_t38gateway/udptl.c
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mod_fax_la_CFLAGS = $(AM_CFLAGS) -I$(SPANDSP_DIR)/src -I$(TIFF_DIR)/libtiff -I$(SPANDSP_BUILDDIR)/src -I$(TIFF_BUILDDIR)/libtiff -I../mod_t38gateway
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mod_fax_la_LIBADD = $(switch_builddir)/libfreeswitch.la $(SPANDSP_LA) $(TIFF_LA)
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mod_fax_la_LDFLAGS = -avoid-version -module -no-undefined -shared -ljpeg
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,563 @@
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//#define UDPTL_DEBUG
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2009, Steve Underwood <steveu@coppice.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* Contributor(s):
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*
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* Steve Underwood <steveu@coppice.org>
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*
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* udptl.c -- UDPTL handling for T.38
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <inttypes.h>
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#include <memory.h>
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#include "udptl.h"
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#define FALSE 0
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#define TRUE (!FALSE)
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static int decode_length(const uint8_t *buf, int limit, int *len, int *pvalue)
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{
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if (*len >= limit)
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return -1;
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if ((buf[*len] & 0x80) == 0) {
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*pvalue = buf[(*len)++];
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return 0;
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}
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if ((buf[*len] & 0x40) == 0) {
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if (*len >= limit - 1)
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return -1;
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*pvalue = (buf[(*len)++] & 0x3F) << 8;
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*pvalue |= buf[(*len)++];
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return 0;
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}
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*pvalue = (buf[(*len)++] & 0x3F) << 14;
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/* Indicate we have a fragment */
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return 1;
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}
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/*- End of function --------------------------------------------------------*/
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static int decode_open_type(const uint8_t *buf, int limit, int *len, const uint8_t ** p_object, int *p_num_octets)
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{
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int octet_cnt;
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int octet_idx;
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int stat;
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int i;
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const uint8_t **pbuf;
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for (octet_idx = 0, *p_num_octets = 0;; octet_idx += octet_cnt) {
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if ((stat = decode_length(buf, limit, len, &octet_cnt)) < 0)
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return -1;
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if (octet_cnt > 0) {
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*p_num_octets += octet_cnt;
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pbuf = &p_object[octet_idx];
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i = 0;
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/* Make sure the buffer contains at least the number of bits requested */
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if ((*len + octet_cnt) > limit)
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return -1;
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*pbuf = &buf[*len];
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*len += octet_cnt;
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}
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if (stat == 0)
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break;
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}
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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static int encode_length(uint8_t *buf, int *len, int value)
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{
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int multiplier;
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if (value < 0x80) {
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/* 1 octet */
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buf[(*len)++] = value;
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return value;
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}
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if (value < 0x4000) {
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/* 2 octets */
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/* Set the first bit of the first octet */
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buf[(*len)++] = ((0x8000 | value) >> 8) & 0xFF;
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buf[(*len)++] = value & 0xFF;
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return value;
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}
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/* Fragmentation */
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multiplier = (value < 0x10000) ? (value >> 14) : 4;
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/* Set the first 2 bits of the octet */
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buf[(*len)++] = 0xC0 | multiplier;
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return multiplier << 14;
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}
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/*- End of function --------------------------------------------------------*/
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static int encode_open_type(uint8_t *buf, int *len, const uint8_t *data, int num_octets)
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{
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int enclen;
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int octet_idx;
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uint8_t zero_byte;
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/* If open type is of zero length, add a single zero byte (10.1) */
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if (num_octets == 0) {
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zero_byte = 0;
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data = &zero_byte;
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num_octets = 1;
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}
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/* Encode the open type */
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for (octet_idx = 0;; num_octets -= enclen, octet_idx += enclen) {
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if ((enclen = encode_length(buf, len, num_octets)) < 0)
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return -1;
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if (enclen > 0) {
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memcpy(&buf[*len], &data[octet_idx], enclen);
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*len += enclen;
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}
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if (enclen >= num_octets)
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break;
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}
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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int udptl_rx_packet(udptl_state_t *s, const uint8_t buf[], int len)
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{
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int stat;
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int stat2;
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int i;
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int j;
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int k;
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int l;
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int m;
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int x;
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int limit;
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int which;
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int ptr;
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int count;
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int total_count;
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int seq_no;
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const uint8_t *msg;
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const uint8_t *data;
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int msg_len;
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int repaired[16];
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const uint8_t *bufs[16];
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int lengths[16];
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int span;
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int entries;
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ptr = 0;
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/* Decode seq_number */
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if (ptr + 2 > len)
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return -1;
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seq_no = (buf[0] << 8) | buf[1];
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ptr += 2;
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/* Break out the primary packet */
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if ((stat = decode_open_type(buf, len, &ptr, &msg, &msg_len)) != 0)
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return -1;
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/* Decode error_recovery */
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if (ptr + 1 > len)
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return -1;
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/* Our buffers cannot tolerate overlength packets */
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if (msg_len > LOCAL_FAX_MAX_DATAGRAM)
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return -1;
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/* Update any missed slots in the buffer */
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for (i = s->rx_seq_no; seq_no > i; i++) {
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x = i & UDPTL_BUF_MASK;
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s->rx[x].buf_len = -1;
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s->rx[x].fec_len[0] = 0;
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s->rx[x].fec_span = 0;
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s->rx[x].fec_entries = 0;
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}
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/* Save the new packet. Pure redundancy mode won't use this, but some systems will switch
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into FEC mode after sending some redundant packets. */
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x = seq_no & UDPTL_BUF_MASK;
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memcpy(s->rx[x].buf, msg, msg_len);
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s->rx[x].buf_len = msg_len;
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s->rx[x].fec_len[0] = 0;
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s->rx[x].fec_span = 0;
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s->rx[x].fec_entries = 0;
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if ((buf[ptr++] & 0x80) == 0) {
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/* Secondary packet mode for error recovery */
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/* We might have the packet we want, but we need to check through
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the redundant stuff, and verify the integrity of the UDPTL.
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This greatly reduces our chances of accepting garbage. */
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total_count = 0;
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do {
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if ((stat2 = decode_length(buf, len, &ptr, &count)) < 0)
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return -1;
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for (i = 0; i < count; i++) {
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if ((stat = decode_open_type(buf, len, &ptr, &bufs[total_count + i], &lengths[total_count + i])) != 0)
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return -1;
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}
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total_count += count;
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}
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while (stat2 > 0);
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/* We should now be exactly at the end of the packet. If not, this is a fault. */
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if (ptr != len)
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return -1;
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if (seq_no > s->rx_seq_no) {
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/* We received a later packet than we expected, so we need to check if we can fill in the gap from the
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secondary packets. */
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/* Step through in reverse order, so we go oldest to newest */
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for (i = total_count; i > 0; i--) {
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if (seq_no - i >= s->rx_seq_no) {
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/* This one wasn't seen before */
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/* Decode the secondary packet */
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#if defined(UDPTL_DEBUG)
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fprintf(stderr, "Secondary %d, len %d\n", seq_no - i, lengths[i - 1]);
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#endif
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/* Save the new packet. Redundancy mode won't use this, but some systems will switch into
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FEC mode after sending some redundant packets, and this may then be important. */
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x = (seq_no - i) & UDPTL_BUF_MASK;
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memcpy(s->rx[x].buf, bufs[i - 1], lengths[i - 1]);
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s->rx[x].buf_len = lengths[i - 1];
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s->rx[x].fec_len[0] = 0;
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s->rx[x].fec_span = 0;
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s->rx[x].fec_entries = 0;
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if (s->rx_packet_handler(s->user_data, bufs[i - 1], lengths[i - 1], seq_no - i) < 0)
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fprintf(stderr, "Bad IFP\n");
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}
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}
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}
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} else {
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/* FEC mode for error recovery */
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/* Decode the FEC packets */
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/* The span is defined as an unconstrained integer, but will never be more
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than a small value. */
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if (ptr + 2 > len)
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return -1;
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if (buf[ptr++] != 1)
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return -1;
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span = buf[ptr++];
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x = seq_no & UDPTL_BUF_MASK;
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s->rx[x].fec_span = span;
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memset(repaired, 0, sizeof(repaired));
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repaired[x] = TRUE;
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/* The number of entries is defined as a length, but will only ever be a small
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value. Treat it as such. */
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if (ptr + 1 > len)
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return -1;
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entries = buf[ptr++];
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s->rx[x].fec_entries = entries;
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/* Decode the elements */
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for (i = 0; i < entries; i++) {
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if ((stat = decode_open_type(buf, len, &ptr, &data, &s->rx[x].fec_len[i])) != 0)
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return -1;
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if (s->rx[x].fec_len[i] > LOCAL_FAX_MAX_DATAGRAM)
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return -1;
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/* Save the new FEC data */
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memcpy(s->rx[x].fec[i], data, s->rx[x].fec_len[i]);
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#if 0
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fprintf(stderr, "FEC: ");
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for (j = 0; j < s->rx[x].fec_len[i]; j++)
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fprintf(stderr, "%02X ", data[j]);
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fprintf(stderr, "\n");
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#endif
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}
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/* We should now be exactly at the end of the packet. If not, this is a fault. */
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if (ptr != len)
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return -1;
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/* See if we can reconstruct anything which is missing */
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/* TODO: this does not comprehensively hunt back and repair everything that is possible */
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for (l = x; l != ((x - (16 - span * entries)) & UDPTL_BUF_MASK); l = (l - 1) & UDPTL_BUF_MASK) {
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if (s->rx[l].fec_len[0] <= 0)
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continue;
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for (m = 0; m < s->rx[l].fec_entries; m++) {
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limit = (l + m) & UDPTL_BUF_MASK;
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for (which = -1, k = (limit - s->rx[l].fec_span * s->rx[l].fec_entries) & UDPTL_BUF_MASK; k != limit;
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k = (k + s->rx[l].fec_entries) & UDPTL_BUF_MASK) {
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if (s->rx[k].buf_len <= 0)
|
||||
which = (which == -1) ? k : -2;
|
||||
}
|
||||
if (which >= 0) {
|
||||
/* Repairable */
|
||||
for (j = 0; j < s->rx[l].fec_len[m]; j++) {
|
||||
s->rx[which].buf[j] = s->rx[l].fec[m][j];
|
||||
for (k = (limit - s->rx[l].fec_span * s->rx[l].fec_entries) & UDPTL_BUF_MASK; k != limit;
|
||||
k = (k + s->rx[l].fec_entries) & UDPTL_BUF_MASK)
|
||||
s->rx[which].buf[j] ^= (s->rx[k].buf_len > j) ? s->rx[k].buf[j] : 0;
|
||||
}
|
||||
s->rx[which].buf_len = s->rx[l].fec_len[m];
|
||||
repaired[which] = TRUE;
|
||||
}
|
||||
}
|
||||
}
|
||||
/* Now play any new packets forwards in time */
|
||||
for (l = (x + 1) & UDPTL_BUF_MASK, j = seq_no - UDPTL_BUF_MASK; l != x; l = (l + 1) & UDPTL_BUF_MASK, j++) {
|
||||
if (repaired[l]) {
|
||||
#if defined(UDPTL_DEBUG)
|
||||
fprintf(stderr, "Fixed packet %d, len %d\n", j, l);
|
||||
#endif
|
||||
if (s->rx_packet_handler(s->user_data, s->rx[l].buf, s->rx[l].buf_len, j) < 0)
|
||||
fprintf(stderr, "Bad IFP\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
/* If packets are received out of sequence, we may have already processed this packet from the error
|
||||
recovery information in a packet already received. */
|
||||
if (seq_no >= s->rx_seq_no) {
|
||||
/* Decode the primary packet */
|
||||
#if defined(UDPTL_DEBUG)
|
||||
fprintf(stderr, "Primary packet %d, len %d\n", seq_no, msg_len);
|
||||
#endif
|
||||
if (s->rx_packet_handler(s->user_data, msg, msg_len, seq_no) < 0)
|
||||
fprintf(stderr, "Bad IFP\n");
|
||||
}
|
||||
|
||||
s->rx_seq_no = (seq_no + 1) & 0xFFFF;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_build_packet(udptl_state_t *s, uint8_t buf[], const uint8_t msg[], int msg_len)
|
||||
{
|
||||
uint8_t fec[LOCAL_FAX_MAX_DATAGRAM];
|
||||
int i;
|
||||
int j;
|
||||
int seq;
|
||||
int entry;
|
||||
int entries;
|
||||
int span;
|
||||
int m;
|
||||
int len;
|
||||
int limit;
|
||||
int high_tide;
|
||||
|
||||
/* UDPTL cannot cope with zero length messages, and our buffering for redundancy limits their
|
||||
maximum length. */
|
||||
if (msg_len < 1 || msg_len > LOCAL_FAX_MAX_DATAGRAM)
|
||||
return -1;
|
||||
seq = s->tx_seq_no & 0xFFFF;
|
||||
|
||||
/* Map the sequence number to an entry in the circular buffer */
|
||||
entry = seq & UDPTL_BUF_MASK;
|
||||
|
||||
/* We save the message in a circular buffer, for generating FEC or
|
||||
redundancy sets later on. */
|
||||
s->tx[entry].buf_len = msg_len;
|
||||
memcpy(s->tx[entry].buf, msg, msg_len);
|
||||
|
||||
/* Build the UDPTL packet */
|
||||
|
||||
len = 0;
|
||||
/* Encode the sequence number */
|
||||
buf[len++] = (seq >> 8) & 0xFF;
|
||||
buf[len++] = seq & 0xFF;
|
||||
|
||||
/* Encode the primary packet */
|
||||
if (encode_open_type(buf, &len, msg, msg_len) < 0)
|
||||
return -1;
|
||||
|
||||
/* Encode the appropriate type of error recovery information */
|
||||
switch (s->error_correction_scheme) {
|
||||
case UDPTL_ERROR_CORRECTION_NONE:
|
||||
/* Encode the error recovery type */
|
||||
buf[len++] = 0x00;
|
||||
/* The number of entries will always be zero, so it is pointless allowing
|
||||
for the fragmented case here. */
|
||||
if (encode_length(buf, &len, 0) < 0)
|
||||
return -1;
|
||||
break;
|
||||
case UDPTL_ERROR_CORRECTION_REDUNDANCY:
|
||||
/* Encode the error recovery type */
|
||||
buf[len++] = 0x00;
|
||||
if (s->tx_seq_no > s->error_correction_entries)
|
||||
entries = s->error_correction_entries;
|
||||
else
|
||||
entries = s->tx_seq_no;
|
||||
/* The number of entries will always be small, so it is pointless allowing
|
||||
for the fragmented case here. */
|
||||
if (encode_length(buf, &len, entries) < 0)
|
||||
return -1;
|
||||
/* Encode the elements */
|
||||
for (i = 0; i < entries; i++) {
|
||||
j = (entry - i - 1) & UDPTL_BUF_MASK;
|
||||
if (encode_open_type(buf, &len, s->tx[j].buf, s->tx[j].buf_len) < 0)
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
case UDPTL_ERROR_CORRECTION_FEC:
|
||||
span = s->error_correction_span;
|
||||
entries = s->error_correction_entries;
|
||||
if (seq < s->error_correction_span * s->error_correction_entries) {
|
||||
/* In the initial stages, wind up the FEC smoothly */
|
||||
entries = seq / s->error_correction_span;
|
||||
if (seq < s->error_correction_span)
|
||||
span = 0;
|
||||
}
|
||||
/* Encode the error recovery type */
|
||||
buf[len++] = 0x80;
|
||||
/* Span is defined as an inconstrained integer, which it dumb. It will only
|
||||
ever be a small value. Treat it as such. */
|
||||
buf[len++] = 1;
|
||||
buf[len++] = span;
|
||||
/* The number of entries is defined as a length, but will only ever be a small
|
||||
value. Treat it as such. */
|
||||
buf[len++] = entries;
|
||||
for (m = 0; m < entries; m++) {
|
||||
/* Make an XOR'ed entry the maximum length */
|
||||
limit = (entry + m) & UDPTL_BUF_MASK;
|
||||
high_tide = 0;
|
||||
for (i = (limit - span * entries) & UDPTL_BUF_MASK; i != limit; i = (i + entries) & UDPTL_BUF_MASK) {
|
||||
if (high_tide < s->tx[i].buf_len) {
|
||||
for (j = 0; j < high_tide; j++)
|
||||
fec[j] ^= s->tx[i].buf[j];
|
||||
for (; j < s->tx[i].buf_len; j++)
|
||||
fec[j] = s->tx[i].buf[j];
|
||||
high_tide = s->tx[i].buf_len;
|
||||
} else {
|
||||
for (j = 0; j < s->tx[i].buf_len; j++)
|
||||
fec[j] ^= s->tx[i].buf[j];
|
||||
}
|
||||
}
|
||||
if (encode_open_type(buf, &len, fec, high_tide) < 0)
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (s->verbose)
|
||||
fprintf(stderr, "\n");
|
||||
s->tx_seq_no++;
|
||||
return len;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_set_error_correction(udptl_state_t *s, int ec_scheme, int span, int entries)
|
||||
{
|
||||
switch (ec_scheme) {
|
||||
case UDPTL_ERROR_CORRECTION_FEC:
|
||||
case UDPTL_ERROR_CORRECTION_REDUNDANCY:
|
||||
case UDPTL_ERROR_CORRECTION_NONE:
|
||||
s->error_correction_scheme = ec_scheme;
|
||||
break;
|
||||
case -1:
|
||||
/* Just don't change the scheme */
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
if (span >= 0)
|
||||
s->error_correction_span = span;
|
||||
if (entries >= 0)
|
||||
s->error_correction_entries = entries;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_get_error_correction(udptl_state_t *s, int *ec_scheme, int *span, int *entries)
|
||||
{
|
||||
if (ec_scheme)
|
||||
*ec_scheme = s->error_correction_scheme;
|
||||
if (span)
|
||||
*span = s->error_correction_span;
|
||||
if (entries)
|
||||
*entries = s->error_correction_entries;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_set_local_max_datagram(udptl_state_t *s, int max_datagram)
|
||||
{
|
||||
s->local_max_datagram_size = max_datagram;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_get_local_max_datagram(udptl_state_t *s)
|
||||
{
|
||||
return s->local_max_datagram_size;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_set_far_max_datagram(udptl_state_t *s, int max_datagram)
|
||||
{
|
||||
s->far_max_datagram_size = max_datagram;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_get_far_max_datagram(udptl_state_t *s)
|
||||
{
|
||||
return s->far_max_datagram_size;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
udptl_state_t *udptl_init(udptl_state_t *s, int ec_scheme, int span, int entries, udptl_rx_packet_handler_t rx_packet_handler, void *user_data)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (rx_packet_handler == NULL)
|
||||
return NULL;
|
||||
|
||||
if (s == NULL) {
|
||||
if ((s = (udptl_state_t *) malloc(sizeof(*s))) == NULL)
|
||||
return NULL;
|
||||
}
|
||||
memset(s, 0, sizeof(*s));
|
||||
|
||||
s->error_correction_scheme = ec_scheme;
|
||||
s->error_correction_span = span;
|
||||
s->error_correction_entries = entries;
|
||||
|
||||
s->far_max_datagram_size = LOCAL_FAX_MAX_DATAGRAM;
|
||||
s->local_max_datagram_size = LOCAL_FAX_MAX_DATAGRAM;
|
||||
|
||||
memset(&s->rx, 0, sizeof(s->rx));
|
||||
memset(&s->tx, 0, sizeof(s->tx));
|
||||
for (i = 0; i <= UDPTL_BUF_MASK; i++) {
|
||||
s->rx[i].buf_len = -1;
|
||||
s->tx[i].buf_len = -1;
|
||||
}
|
||||
|
||||
s->rx_packet_handler = rx_packet_handler;
|
||||
s->user_data = user_data;
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
|
||||
int udptl_release(udptl_state_t *s)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*- End of function --------------------------------------------------------*/
|
||||
/*- End of file ------------------------------------------------------------*/
|
|
@ -0,0 +1,153 @@
|
|||
/*
|
||||
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
|
||||
* Copyright (C) 2009, Steve Underwood <steveu@coppice.org>
|
||||
*
|
||||
* Version: MPL 1.1
|
||||
*
|
||||
* The contents of this file are subject to the Mozilla Public License Version
|
||||
* 1.1 (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
* http://www.mozilla.org/MPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
||||
* for the specific language governing rights and limitations under the
|
||||
* License.
|
||||
*
|
||||
* Contributor(s):
|
||||
*
|
||||
* Steve Underwood <steveu@coppice.org>
|
||||
*
|
||||
* udptl.h -- UDPTL handling for T.38
|
||||
*
|
||||
*/
|
||||
|
||||
#if !defined(_UDPTL_H_)
|
||||
#define _UDPTL_H_
|
||||
|
||||
#define LOCAL_FAX_MAX_DATAGRAM 400
|
||||
#define LOCAL_FAX_MAX_FEC_PACKETS 5
|
||||
|
||||
#define UDPTL_BUF_MASK 15
|
||||
|
||||
typedef int (udptl_rx_packet_handler_t) (void *user_data, const uint8_t msg[], int len, int seq_no);
|
||||
|
||||
typedef struct {
|
||||
int buf_len;
|
||||
uint8_t buf[LOCAL_FAX_MAX_DATAGRAM];
|
||||
} udptl_fec_tx_buffer_t;
|
||||
|
||||
typedef struct {
|
||||
int buf_len;
|
||||
uint8_t buf[LOCAL_FAX_MAX_DATAGRAM];
|
||||
int fec_len[LOCAL_FAX_MAX_FEC_PACKETS];
|
||||
uint8_t fec[LOCAL_FAX_MAX_FEC_PACKETS][LOCAL_FAX_MAX_DATAGRAM];
|
||||
int fec_span;
|
||||
int fec_entries;
|
||||
} udptl_fec_rx_buffer_t;
|
||||
|
||||
struct udptl_state_s {
|
||||
udptl_rx_packet_handler_t *rx_packet_handler;
|
||||
void *user_data;
|
||||
|
||||
/*! This option indicates the error correction scheme used in transmitted UDPTL
|
||||
packets. */
|
||||
int error_correction_scheme;
|
||||
|
||||
/*! This option indicates the number of error correction entries transmitted in
|
||||
UDPTL packets. */
|
||||
int error_correction_entries;
|
||||
|
||||
/*! This option indicates the span of the error correction entries in transmitted
|
||||
UDPTL packets (FEC only). */
|
||||
int error_correction_span;
|
||||
|
||||
/*! This option indicates the maximum size of a datagram that can be accepted by
|
||||
the remote device. */
|
||||
int far_max_datagram_size;
|
||||
|
||||
/*! This option indicates the maximum size of a datagram that we are prepared to
|
||||
accept. */
|
||||
int local_max_datagram_size;
|
||||
|
||||
int verbose;
|
||||
|
||||
int tx_seq_no;
|
||||
int rx_seq_no;
|
||||
int rx_expected_seq_no;
|
||||
|
||||
udptl_fec_tx_buffer_t tx[UDPTL_BUF_MASK + 1];
|
||||
udptl_fec_rx_buffer_t rx[UDPTL_BUF_MASK + 1];
|
||||
};
|
||||
|
||||
enum {
|
||||
UDPTL_ERROR_CORRECTION_NONE,
|
||||
UDPTL_ERROR_CORRECTION_FEC,
|
||||
UDPTL_ERROR_CORRECTION_REDUNDANCY
|
||||
};
|
||||
|
||||
typedef struct udptl_state_s udptl_state_t;
|
||||
|
||||
#if defined(__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*! \brief Process an arriving UDPTL packet.
|
||||
\param s The UDPTL context.
|
||||
\param buf The UDPTL packet buffer.
|
||||
\param len The length of the packet.
|
||||
\return 0 for OK. */
|
||||
int udptl_rx_packet(udptl_state_t *s, const uint8_t buf[], int len);
|
||||
|
||||
/*! \brief Construct a UDPTL packet, ready for transmission.
|
||||
\param s The UDPTL context.
|
||||
\param buf The UDPTL packet buffer.
|
||||
\param msg The primary packet.
|
||||
\param len The length of the primary packet.
|
||||
\return The length of the constructed UDPTL packet. */
|
||||
int udptl_build_packet(udptl_state_t *s, uint8_t buf[], const uint8_t msg[], int msg_len);
|
||||
|
||||
/*! \brief Change the error correction settings of a UDPTL context.
|
||||
\param s The UDPTL context.
|
||||
\param ec_scheme One of the optional error correction schemes.
|
||||
\param span The packet span over which error correction should be applied.
|
||||
\param entries The number of error correction entries to include in packets.
|
||||
\return 0 for OK. */
|
||||
int udptl_set_error_correction(udptl_state_t *s, int ec_scheme, int span, int entries);
|
||||
|
||||
/*! \brief Check the error correction settings of a UDPTL context.
|
||||
\param s The UDPTL context.
|
||||
\param ec_scheme One of the optional error correction schemes.
|
||||
\param span The packet span over which error correction is being applied.
|
||||
\param entries The number of error correction being included in packets.
|
||||
\return 0 for OK. */
|
||||
int udptl_get_error_correction(udptl_state_t *s, int *ec_scheme, int *span, int *entries);
|
||||
|
||||
int udptl_set_local_max_datagram(udptl_state_t *s, int max_datagram);
|
||||
|
||||
int udptl_get_local_max_datagram(udptl_state_t *s);
|
||||
|
||||
int udptl_set_far_max_datagram(udptl_state_t *s, int max_datagram);
|
||||
|
||||
int udptl_get_far_max_datagram(udptl_state_t *s);
|
||||
|
||||
/*! \brief Initialise a UDPTL context.
|
||||
\param s The UDPTL context.
|
||||
\param ec_scheme One of the optional error correction schemes.
|
||||
\param span The packet span over which error correction should be applied.
|
||||
\param entries The number of error correction entries to include in packets.
|
||||
\param rx_packet_handler The callback function, used to report arriving IFP packets.
|
||||
\param user_data An opaque pointer supplied to rx_packet_handler.
|
||||
\return A pointer to the UDPTL context, or NULL if there was a problem. */
|
||||
udptl_state_t *udptl_init(udptl_state_t *s, int ec_scheme, int span, int entries, udptl_rx_packet_handler_t rx_packet_handler, void *user_data);
|
||||
|
||||
/*! \brief Release a UDPTL context.
|
||||
\param s The UDPTL context.
|
||||
\return 0 for OK. */
|
||||
int udptl_release(udptl_state_t *s);
|
||||
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
/*- End of file ------------------------------------------------------------*/
|
|
@ -1,8 +1,17 @@
|
|||
include $(top_srcdir)/build/modmake.rulesam
|
||||
MODNAME=mod_t38gateway
|
||||
|
||||
TIFF_DIR=$(switch_srcdir)/libs/tiff-3.8.2
|
||||
TIFF_BUILDDIR=$(switch_builddir)/libs/tiff-3.8.2
|
||||
TIFF_LA=$(TIFF_BUILDDIR)/libtiff/libtiff.la
|
||||
|
||||
SPANDSP_DIR=$(switch_srcdir)/libs/spandsp
|
||||
SPANDSP_BUILDDIR=$(switch_builddir)/libs/spandsp
|
||||
SPANDSP_LA=$(SPANDSP_BUILDDIR)/src/libspandsp.la
|
||||
|
||||
mod_LTLIBRARIES = mod_t38gateway.la
|
||||
mod_t38gateway_la_SOURCES = mod_t38gateway.c udptl.c
|
||||
mod_t38gateway_la_CFLAGS = $(AM_CFLAGS)
|
||||
mod_t38gateway_la_LIBADD = $(switch_builddir)/libfreeswitch.la
|
||||
mod_t38gateway_la_LDFLAGS = -avoid-version -module -no-undefined -shared
|
||||
mod_t38gateway_la_CFLAGS = $(AM_CFLAGS) -I$(SPANDSP_DIR)/src -I$(TIFF_DIR)/libtiff -I$(SPANDSP_BUILDDIR)/src -I$(TIFF_BUILDDIR)/libtiff
|
||||
mod_t38gateway_la_LIBADD = $(switch_builddir)/libfreeswitch.la $(SPANDSP_LA) $(TIFF_LA)
|
||||
mod_t38gateway_la_LDFLAGS = -avoid-version -module -no-undefined -shared -ljpeg
|
||||
|
||||
|
|
|
@ -199,7 +199,7 @@ SWITCH_STANDARD_APP(t38gateway_start_function)
|
|||
t38gateway_info->t38_core = t38_gateway_get_t38_core_state(t38gateway_info->t38);
|
||||
t38gateway_info->udptl = udptl_init(NULL, UDPTL_ERROR_CORRECTION_REDUNDANCY, 3, 3, rx_packet_handler, (void *) t38gateway_info);
|
||||
|
||||
status = switch_core_media_bug_add(session, t38gateway_callback, t38gateway_info, 0, SMBF_READ_STREAM, &bug);
|
||||
status = switch_core_media_bug_add(session, "T.38 gateway", NULL, t38gateway_callback, t38gateway_info, 0, SMBF_READ_STREAM, &bug);
|
||||
|
||||
if (status != SWITCH_STATUS_SUCCESS) {
|
||||
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Failure hooking to stream\n");
|
||||
|
@ -316,7 +316,7 @@ SWITCH_STANDARD_API(t38gateway_api_main)
|
|||
|
||||
/* Add a media bug that allows me to intercept the
|
||||
* reading leg of the audio stream */
|
||||
status = switch_core_media_bug_add(t38gateway_session, t38gateway_callback, t38gateway_info, 0, SMBF_READ_STREAM, &bug);
|
||||
status = switch_core_media_bug_add(t38gateway_session, "T.38 gateway", NULL, t38gateway_callback, t38gateway_info, 0, SMBF_READ_STREAM, &bug);
|
||||
|
||||
/* If adding a media bug fails exit */
|
||||
if (status != SWITCH_STATUS_SUCCESS) {
|
||||
|
|
|
@ -996,19 +996,23 @@ static switch_status_t sofia_read_frame(switch_core_session_t *session, switch_f
|
|||
}
|
||||
|
||||
tech_pvt->read_frame.datalen = 0;
|
||||
|
||||
if (codec_ms != tech_pvt->codec_ms) {
|
||||
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING,
|
||||
"We were told to use ptime %d but what they meant to say was %d\n"
|
||||
"This issue has so far been identified to happen on the following broken platforms/devices:\n"
|
||||
"Linksys/Sipura aka Cisco\n"
|
||||
"ShoreTel\n"
|
||||
"Sonus/L3\n"
|
||||
"We will try to fix it but some of the devices on this list are so broken who knows what will happen..\n",
|
||||
"We will try to fix it but some of the devices on this list are so broken,\n"
|
||||
"who knows what will happen..\n",
|
||||
(int) tech_pvt->codec_ms, (int) codec_ms);
|
||||
|
||||
switch_channel_set_variable_printf(channel, "sip_h_X-Broken-PTIME", "Adv=%d;Sent=%d",
|
||||
(int) tech_pvt->codec_ms, (int) codec_ms);
|
||||
|
||||
tech_pvt->codec_ms = codec_ms;
|
||||
}
|
||||
|
||||
if (sofia_glue_tech_set_codec(tech_pvt, 2) != SWITCH_STATUS_SUCCESS) {
|
||||
*frame = NULL;
|
||||
|
@ -1049,6 +1053,7 @@ static switch_status_t sofia_read_frame(switch_core_session_t *session, switch_f
|
|||
tech_pvt->last_ts = 0;
|
||||
|
||||
/* inform them of the codec they are actually sending */
|
||||
|
||||
if (++tech_pvt->codec_reinvites > 2) {
|
||||
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING,
|
||||
"Ok, some devices *cough* X-lite *cough*\n"
|
||||
|
@ -1065,7 +1070,10 @@ static switch_status_t sofia_read_frame(switch_core_session_t *session, switch_f
|
|||
} else {
|
||||
tech_pvt->mismatch_count = 0;
|
||||
}
|
||||
|
||||
tech_pvt->last_ts = tech_pvt->read_frame.timestamp;
|
||||
|
||||
|
||||
} else {
|
||||
tech_pvt->mismatch_count = 0;
|
||||
tech_pvt->last_ts = 0;
|
||||
|
@ -1512,15 +1520,69 @@ static switch_status_t sofia_receive_message(switch_core_session_t *session, swi
|
|||
}
|
||||
break;
|
||||
|
||||
case SWITCH_MESSAGE_INDICATE_UDPTL_MODE:
|
||||
{
|
||||
switch_t38_options_t *t38_options = switch_channel_get_private(tech_pvt->channel, "t38_options");
|
||||
|
||||
if (!t38_options) {
|
||||
nua_respond(tech_pvt->nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
|
||||
goto end_lock;
|
||||
}
|
||||
|
||||
if (switch_rtp_ready(tech_pvt->rtp_session)) {
|
||||
switch_rtp_udptl_mode(tech_pvt->rtp_session);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case SWITCH_MESSAGE_INDICATE_T38_DESCRIPTION:
|
||||
{
|
||||
switch_t38_options_t *t38_options = switch_channel_get_private(tech_pvt->channel, "t38_options");
|
||||
|
||||
if (!t38_options) {
|
||||
nua_respond(tech_pvt->nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
|
||||
goto end_lock;
|
||||
}
|
||||
|
||||
if (switch_rtp_ready(tech_pvt->rtp_session)) {
|
||||
switch_rtp_udptl_mode(tech_pvt->rtp_session);
|
||||
}
|
||||
|
||||
|
||||
sofia_glue_set_image_sdp(tech_pvt, t38_options, msg->numeric_arg);
|
||||
|
||||
if (!sofia_test_flag(tech_pvt, TFLAG_BYE)) {
|
||||
char *extra_headers = sofia_glue_get_extra_headers(channel, SOFIA_SIP_RESPONSE_HEADER_PREFIX);
|
||||
if (sofia_use_soa(tech_pvt)) {
|
||||
nua_respond(tech_pvt->nh, SIP_200_OK,
|
||||
NUTAG_AUTOANSWER(0),
|
||||
SIPTAG_CONTACT_STR(tech_pvt->reply_contact),
|
||||
SIPTAG_CALL_INFO_STR(switch_channel_get_variable(tech_pvt->channel, SOFIA_SIP_HEADER_PREFIX "call_info")),
|
||||
SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
|
||||
SOATAG_REUSE_REJECTED(1), SOATAG_ORDERED_USER(1), SOATAG_AUDIO_AUX("cn telephone-event"), NUTAG_INCLUDE_EXTRA_SDP(1),
|
||||
TAG_IF(!zstr(extra_headers), SIPTAG_HEADER_STR(extra_headers)),
|
||||
TAG_END());
|
||||
} else {
|
||||
nua_respond(tech_pvt->nh, SIP_200_OK,
|
||||
NUTAG_AUTOANSWER(0),
|
||||
NUTAG_MEDIA_ENABLE(0),
|
||||
SIPTAG_CONTACT_STR(tech_pvt->reply_contact),
|
||||
SIPTAG_CALL_INFO_STR(switch_channel_get_variable(tech_pvt->channel, SOFIA_SIP_HEADER_PREFIX "call_info")),
|
||||
SIPTAG_CONTENT_TYPE_STR("application/sdp"),
|
||||
SIPTAG_PAYLOAD_STR(tech_pvt->local_sdp_str),
|
||||
TAG_IF(!zstr(extra_headers), SIPTAG_HEADER_STR(extra_headers)),
|
||||
TAG_END());
|
||||
}
|
||||
switch_safe_free(extra_headers);
|
||||
sofia_set_flag_locked(tech_pvt, TFLAG_ANS);
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case SWITCH_MESSAGE_INDICATE_REQUEST_IMAGE_MEDIA:
|
||||
{
|
||||
switch_t38_options_t *t38_options = (switch_t38_options_t *) msg->pointer_arg;
|
||||
switch_t38_options_t *t38_options = switch_channel_get_private(tech_pvt->channel, "t38_options");
|
||||
|
||||
sofia_glue_set_image_sdp(tech_pvt, t38_options);
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Sending request for image media. %s\n",
|
||||
switch_channel_get_name(channel), tech_pvt->local_sdp_str);
|
||||
sofia_glue_set_image_sdp(tech_pvt, t38_options, msg->numeric_arg);
|
||||
|
||||
switch_channel_set_flag(channel, CF_REQ_MEDIA);
|
||||
sofia_set_flag_locked(tech_pvt, TFLAG_SENT_UPDATE);
|
||||
|
|
|
@ -930,7 +930,7 @@ void sofia_glue_toggle_hold(private_object_t *tech_pvt, int sendonly);
|
|||
const char *sofia_state_string(int state);
|
||||
switch_status_t sofia_glue_tech_set_codec(private_object_t *tech_pvt, int force);
|
||||
void sofia_wait_for_reply(struct private_object *tech_pvt, nua_event_t event, uint32_t timeout);
|
||||
void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *t38_options);
|
||||
void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *t38_options, int insist);
|
||||
|
||||
/*
|
||||
* SLA (shared line appearance) entrypoints
|
||||
|
|
|
@ -4578,6 +4578,11 @@ static void sofia_handle_sip_i_state(switch_core_session_t *session, int status,
|
|||
sdp_parser_free(parser);
|
||||
}
|
||||
}
|
||||
|
||||
if (match && switch_channel_test_app_flag(tech_pvt->channel, CF_APP_T38)) {
|
||||
goto done;
|
||||
}
|
||||
|
||||
if (match) {
|
||||
if (sofia_glue_tech_choose_port(tech_pvt, 0) != SWITCH_STATUS_SUCCESS) {
|
||||
goto done;
|
||||
|
|
|
@ -37,7 +37,7 @@
|
|||
#include <switch_stun.h>
|
||||
|
||||
|
||||
void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *t38_options)
|
||||
void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *t38_options, int insist)
|
||||
{
|
||||
char buf[2048];
|
||||
const char *ip = t38_options->ip;
|
||||
|
@ -45,6 +45,9 @@ void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *
|
|||
const char *family = "IP4";
|
||||
const char *username = tech_pvt->profile->username;
|
||||
|
||||
|
||||
//sofia_clear_flag(tech_pvt, TFLAG_ENABLE_SOA);
|
||||
|
||||
if (!ip) {
|
||||
if (!(ip = tech_pvt->adv_sdp_audio_ip)) {
|
||||
ip = tech_pvt->proxy_sdp_audio_ip;
|
||||
|
@ -78,13 +81,27 @@ void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *
|
|||
tech_pvt->session_id++;
|
||||
|
||||
family = strchr(ip, ':') ? "IP6" : "IP4";
|
||||
|
||||
|
||||
switch_snprintf(buf, sizeof(buf),
|
||||
"v=0\n"
|
||||
"o=%s %010u %010u IN %s %s\n"
|
||||
"s=%s\n"
|
||||
"c=IN %s %s\n"
|
||||
"t=0 0\n"
|
||||
"t=0 0\n",
|
||||
username,
|
||||
tech_pvt->owner_id,
|
||||
tech_pvt->session_id,
|
||||
family,
|
||||
ip,
|
||||
username,
|
||||
family,
|
||||
ip);
|
||||
|
||||
|
||||
switch_snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
||||
"m=image %d udptl t38\n"
|
||||
"a=T38FaxVersion:%d\n"
|
||||
"a=T38MaxBitRate:%d\n"
|
||||
"%s"
|
||||
"%s"
|
||||
|
@ -94,23 +111,32 @@ void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *
|
|||
"a=T38FaxMaxDatagram:%d\n"
|
||||
"a=T38FaxUdpEC:%s\n"
|
||||
"a=T38VendorInfo:%s\n",
|
||||
username,
|
||||
tech_pvt->owner_id,
|
||||
tech_pvt->session_id,
|
||||
family,
|
||||
ip,
|
||||
username,
|
||||
family,
|
||||
ip,
|
||||
port,
|
||||
t38_options->T38FaxVersion,
|
||||
t38_options->T38MaxBitRate,
|
||||
t38_options->T38FaxFillBitRemoval ? "a=T38FaxFillBitRemoval\n" : "",
|
||||
t38_options->T38FaxTranscodingMMR ? "a=T38FaxTranscodingMMR\n" : "",
|
||||
t38_options->T38FaxTranscodingJBIG ? "a=T38FaxTranscodingJBIG\n" : "",
|
||||
t38_options->T38FaxRateManagement,
|
||||
t38_options->T38FaxMaxBuffer, t38_options->T38FaxMaxDatagram, t38_options->T38FaxUdpEC, t38_options->T38VendorInfo);
|
||||
t38_options->T38FaxMaxBuffer,
|
||||
t38_options->T38FaxMaxDatagram,
|
||||
t38_options->T38FaxUdpEC,
|
||||
t38_options->T38VendorInfo);
|
||||
|
||||
|
||||
|
||||
if (insist) {
|
||||
switch_snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
|
||||
"m=audio 0 RTP/AVP 19\n");
|
||||
}
|
||||
|
||||
sofia_glue_tech_set_local_sdp(tech_pvt, buf, SWITCH_TRUE);
|
||||
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_DEBUG, "%s image media sdp:\n%s\n",
|
||||
switch_channel_get_name(tech_pvt->channel), tech_pvt->local_sdp_str);
|
||||
|
||||
|
||||
}
|
||||
|
||||
void sofia_glue_set_local_sdp(private_object_t *tech_pvt, const char *ip, uint32_t port, const char *sr, int force)
|
||||
|
@ -1582,7 +1608,9 @@ switch_status_t sofia_glue_do_invite(switch_core_session_t *session)
|
|||
return status;
|
||||
}
|
||||
|
||||
if (!switch_channel_get_private(tech_pvt->channel, "t38_options") || zstr(tech_pvt->local_sdp_str)) {
|
||||
sofia_glue_set_local_sdp(tech_pvt, NULL, 0, NULL, 0);
|
||||
}
|
||||
|
||||
sofia_set_flag_locked(tech_pvt, TFLAG_READY);
|
||||
|
||||
|
@ -3417,10 +3445,24 @@ uint8_t sofia_glue_negotiate_sdp(switch_core_session_t *session, sdp_session_t *
|
|||
}
|
||||
|
||||
if (got_udptl && m->m_type == sdp_media_image && m->m_port) {
|
||||
switch_t38_options_t *t38_options = switch_core_session_alloc(tech_pvt->session, sizeof(switch_t38_options_t));
|
||||
switch_t38_options_t *t38_options = switch_channel_get_private(tech_pvt->channel, "t38_options");
|
||||
|
||||
if (!t38_options) {
|
||||
t38_options = switch_core_session_alloc(tech_pvt->session, sizeof(switch_t38_options_t));
|
||||
}
|
||||
|
||||
t38_options->port = m->m_port;
|
||||
|
||||
if (m->m_connections) {
|
||||
t38_options->ip = switch_core_session_strdup(tech_pvt->session, m->m_connections->c_address);
|
||||
} else if (sdp && sdp->sdp_connection) {
|
||||
t38_options->ip = switch_core_session_strdup(tech_pvt->session, sdp->sdp_connection->c_address);
|
||||
}
|
||||
|
||||
for (attr = m->m_attributes; attr; attr = attr->a_next) {
|
||||
if (!strcasecmp(attr->a_name, "T38MaxBitRate") && attr->a_value) {
|
||||
if (!strcasecmp(attr->a_name, "T38FaxVersion") && attr->a_value) {
|
||||
t38_options->T38FaxVersion = (uint16_t) atoi(attr->a_value);
|
||||
} else if (!strcasecmp(attr->a_name, "T38MaxBitRate") && attr->a_value) {
|
||||
t38_options->T38MaxBitRate = (uint32_t) atoi(attr->a_value);
|
||||
} else if (!strcasecmp(attr->a_name, "T38FaxFillBitRemoval")) {
|
||||
t38_options->T38FaxFillBitRemoval = SWITCH_TRUE;
|
||||
|
@ -3443,10 +3485,10 @@ uint8_t sofia_glue_negotiate_sdp(switch_core_session_t *session, sdp_session_t *
|
|||
|
||||
switch_channel_set_variable(tech_pvt->channel, "has_t38", "true");
|
||||
switch_channel_set_private(tech_pvt->channel, "t38_options", t38_options);
|
||||
|
||||
//switch_channel_set_flag(tech_pvt->channel, CF_PROXY_MEDIA);
|
||||
//switch_rtp_set_flag(tech_pvt->rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA);
|
||||
|
||||
switch_channel_set_app_flag(tech_pvt->channel, CF_APP_T38);
|
||||
/* do nothing here, mod_fax will trigger a response (if it's listening =/)*/
|
||||
match = 1;
|
||||
goto done;
|
||||
} else if (m->m_type == sdp_media_audio && m->m_port && !got_audio) {
|
||||
sdp_rtpmap_t *map;
|
||||
for (attr = m->m_attributes; attr; attr = attr->a_next) {
|
||||
|
|
|
@ -556,6 +556,7 @@ static const char *message_names[] = {
|
|||
"APPLICATION_EXEC",
|
||||
"APPLICATION_EXEC_COMPLETE",
|
||||
"PHONE_EVENT",
|
||||
"T38_DESCRIPTION"
|
||||
"INVALID"
|
||||
};
|
||||
|
||||
|
|
|
@ -1025,6 +1025,33 @@ SWITCH_DECLARE(switch_port_t) switch_rtp_get_remote_port(switch_rtp_t *rtp_sessi
|
|||
}
|
||||
|
||||
|
||||
SWITCH_DECLARE(switch_status_t) switch_rtp_udptl_mode(switch_rtp_t *rtp_session)
|
||||
{
|
||||
READ_INC(rtp_session);
|
||||
WRITE_INC(rtp_session);
|
||||
|
||||
if (rtp_session->timer.timer_interface) {
|
||||
switch_core_timer_destroy(&rtp_session->timer);
|
||||
memset(&rtp_session->timer, 0, sizeof(rtp_session->timer));
|
||||
}
|
||||
|
||||
switch_set_flag_locked(rtp_session, SWITCH_RTP_FLAG_UDPTL);
|
||||
switch_set_flag_locked(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA);
|
||||
switch_socket_opt_set(rtp_session->sock_input, SWITCH_SO_NONBLOCK, FALSE);
|
||||
|
||||
switch_clear_flag(rtp_session, SWITCH_RTP_FLAG_USE_TIMER);
|
||||
switch_clear_flag(rtp_session, SWITCH_RTP_FLAG_NOBLOCK);
|
||||
|
||||
WRITE_DEC(rtp_session);
|
||||
READ_DEC(rtp_session);
|
||||
|
||||
switch_set_flag_locked(rtp_session, SWITCH_RTP_FLAG_FLUSH);
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
|
||||
}
|
||||
|
||||
|
||||
SWITCH_DECLARE(switch_status_t) switch_rtp_set_remote_address(switch_rtp_t *rtp_session, const char *host, switch_port_t port, switch_port_t remote_rtcp_port,
|
||||
switch_bool_t change_adv_addr, const char **err)
|
||||
{
|
||||
|
@ -1227,7 +1254,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_change_interval(switch_rtp_t *rtp_ses
|
|||
rtp_session->timer_name, ms_per_packet / 1000,
|
||||
samples_per_interval, rtp_session->pool)) == SWITCH_STATUS_SUCCESS) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
|
||||
"RE-Starting timer [%s] %d bytes per %dms\n", rtp_session->timer_name, samples_per_interval, ms_per_packet);
|
||||
"RE-Starting timer [%s] %d bytes per %dms\n", rtp_session->timer_name, samples_per_interval, ms_per_packet / 1000);
|
||||
} else {
|
||||
memset(&rtp_session->timer, 0, sizeof(rtp_session->timer));
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,
|
||||
|
@ -2451,9 +2478,14 @@ static int rtp_common_read(switch_rtp_t *rtp_session, switch_payload_t *payload_
|
|||
}
|
||||
}
|
||||
|
||||
if (bytes && switch_test_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA)) {
|
||||
if (bytes && (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA) || switch_test_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL))) {
|
||||
/* Fast PASS! */
|
||||
*flags |= SFF_PROXY_PACKET;
|
||||
|
||||
if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL)) {
|
||||
*flags |= SFF_UDPTL_PACKET;
|
||||
}
|
||||
|
||||
ret = (int) bytes;
|
||||
goto end;
|
||||
}
|
||||
|
@ -3475,12 +3507,12 @@ SWITCH_DECLARE(int) switch_rtp_write_frame(switch_rtp_t *rtp_session, switch_fra
|
|||
return -1;
|
||||
}
|
||||
|
||||
if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA)) {
|
||||
if (switch_test_flag(rtp_session, SWITCH_RTP_FLAG_PROXY_MEDIA) || switch_test_flag(rtp_session, SWITCH_RTP_FLAG_UDPTL)) {
|
||||
switch_size_t bytes;
|
||||
char bufa[30];
|
||||
const char *tx_host;
|
||||
/* Fast PASS! */
|
||||
if (!switch_test_flag(frame, SFF_PROXY_PACKET)) {
|
||||
if (!switch_test_flag(frame, SFF_PROXY_PACKET) && !switch_test_flag(frame, SFF_UDPTL_PACKET)) {
|
||||
return 0;
|
||||
}
|
||||
bytes = frame->packetlen;
|
||||
|
|
Loading…
Reference in New Issue