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call.cpp
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call.cpp
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/*
* 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
*
* Author : Richard GAYRAUD - 04 Nov 2003
* Olivier Jacques
* From Hewlett Packard Company.
* Shriram Natarajan
* Peter Higginson
* Eric Miller
* Venkatesh
* Enrico Hartung
* Nasir Khan
* Lee Ballard
* Guillaume Teissier from FTR&D
* Wolfgang Beck
* Venkatesh
* Vlad Troyanker
* Charles P Wright from IBM Research
* Amit On from Followap
* Jan Andres from Freenet
* Ben Evans from Open Cloud
* Marc Van Diest from Belgacom
* Michael Dwyer from Cibation
* Roland Meub
* Andy Aicken
* Martin H. VanLeeuwen
*/
#include <iterator>
#include <algorithm>
#include <fstream>
#include <iostream>
#include <sys/types.h>
#include <sys/wait.h>
#include <assert.h>
#ifdef PCAPPLAY
#include "send_packets.h"
#endif
#include "sipp.hpp"
#include "deadcall.hpp"
#define callDebug(args...) do { if (useCallDebugf) { _callDebug( args ); } } while (0)
extern map<string, struct sipp_socket *> map_perip_fd;
#ifdef PCAPPLAY
/* send_packets pthread wrapper */
void *send_wrapper(void *);
#endif
int call::dynamicId = 0;
int call::maxDynamicId = 10000+2000*4; // FIXME both param to be in command line !!!!
int call::startDynamicId = 10000; // FIXME both param to be in command line !!!!
int call::stepDynamicId = 4; // FIXME both param to be in command line !!!!
/************** Call map and management routines **************/
static unsigned int next_number = 1;
unsigned int get_tdm_map_number()
{
unsigned int nb = 0;
unsigned int i=0;
unsigned int interval=0;
unsigned int random=0;
bool found = false;
/* Find a number in the tdm_map which is not in use */
interval = (tdm_map_a+1) * (tdm_map_b+1) * (tdm_map_c+1);
random = rand() % interval;
while ((i<interval) && (!found)) {
if (tdm_map[(random + i - 1) % interval] == false) {
nb = (random + i - 1) % interval;
found = true;
}
i++;
}
if (!found) {
return 0;
} else {
return nb+1;
}
}
/* When should this call wake up? */
unsigned int call::wake()
{
unsigned int wake = 0;
if (zombie) {
return wake;
}
if (paused_until) {
wake = paused_until;
}
if (next_retrans && (!wake || (next_retrans < wake))) {
wake = next_retrans;
}
if (recv_timeout && (!wake || (recv_timeout < wake))) {
wake = recv_timeout;
}
return wake;
}
#ifdef PCAPPLAY
/******* Media information management *************************/
/*
* Look for "c=IN IP4 " pattern in the message and extract the following value
* which should be IP address
*/
uint32_t get_remote_ip_media(char *msg)
{
char pattern[] = "c=IN IP4 ";
char *begin, *end;
char ip[32];
char *my_msg = strdup(msg);
if (!my_msg) {
return INADDR_NONE;
}
begin = strstr(my_msg, pattern);
if (!begin) {
free(my_msg);
/* Can't find what we're looking at -> return no address */
return INADDR_NONE;
}
begin += sizeof("c=IN IP4 ") - 1;
end = strstr(begin, "\r\n");
if (!end) {
free(my_msg);
return INADDR_NONE;
}
*end = '\0';
memset(ip, 0, 32);
strncpy(ip, begin, sizeof(ip) - 1);
ip[sizeof(ip) - 1] = '\0';
free(my_msg);
return inet_addr(ip);
}
/*
* Look for "c=IN IP6 " pattern in the message and extract the following value
* which should be IPv6 address
*/
uint8_t get_remote_ipv6_media(char *msg, struct in6_addr *addr)
{
char pattern[] = "c=IN IP6 ";
char *begin, *end;
char ip[128];
char *my_msg = strdup(msg);
memset(addr, 0, sizeof(*addr));
memset(ip, 0, 128);
if (!my_msg) {
return 0;
}
begin = strstr(my_msg,pattern);
if (!begin) {
free(my_msg);
/* Can't find what we're looking at -> return no address */
return 0;
}
begin += sizeof("c=IN IP6 ") - 1;
end = strstr(begin, "\r\n");
if (!end) {
free(my_msg);
return 0;
}
*end = '\0';
strncpy(ip, begin, sizeof(ip) -1);
ip[sizeof(ip) - 1] = '\0';
free(my_msg);
if (!inet_pton(AF_INET6, ip, addr)) {
return 0;
}
return 1;
}
/*
* Look for "m=audio " or "m=video " pattern in the message and extract the
* following value which should be port number
*/
#define PAT_AUDIO 1
#define PAT_VIDEO 2
uint16_t get_remote_port_media(const char *msg, int pattype)
{
const char *pattern;
char *begin, *end;
char number[6];
if (pattype == PAT_AUDIO) {
pattern = "m=audio ";
} else if (pattype == PAT_VIDEO) {
pattern = "m=video ";
} else {
ERROR("Internal error: Undefined media pattern %d\n", 3);
}
char *my_msg = strdup(msg);
if (!my_msg) {
return 0;
}
begin = strstr(my_msg, pattern);
if (!begin) {
free(my_msg);
/* m=audio not found */
return 0;
}
begin += strlen(pattern);
end = strstr(begin, "\r\n");
if (!end) {
free(my_msg);
ERROR("get_remote_port_media: no CRLF found");
return 0;
}
*end = '\0';
memset(number, 0, sizeof(number));
strncpy(number, begin, sizeof(number) - 1);
number[sizeof(number) - 1] = '\0';
free(my_msg);
return atoi(number);
}
/*
* IPv{4,6} compliant
*/
void call::get_remote_media_addr(char *msg)
{
uint16_t video_port, audio_port;
if (media_ip_is_ipv6) {
struct in6_addr ip_media;
if (get_remote_ipv6_media(msg, &ip_media)) {
audio_port = get_remote_port_media(msg, PAT_AUDIO);
if (audio_port) {
/* We have audio in the SDP: set the to_audio addr */
(_RCAST(struct sockaddr_in6 *, &(play_args_a.to)))->sin6_flowinfo = 0;
(_RCAST(struct sockaddr_in6 *, &(play_args_a.to)))->sin6_scope_id = 0;
(_RCAST(struct sockaddr_in6 *, &(play_args_a.to)))->sin6_family = AF_INET6;
(_RCAST(struct sockaddr_in6 *, &(play_args_a.to)))->sin6_port = audio_port;
(_RCAST(struct sockaddr_in6 *, &(play_args_a.to)))->sin6_addr = ip_media;
}
video_port = get_remote_port_media(msg, PAT_VIDEO);
if (video_port) {
/* We have video in the SDP: set the to_video addr */
(_RCAST(struct sockaddr_in6 *, &(play_args_v.to)))->sin6_flowinfo = 0;
(_RCAST(struct sockaddr_in6 *, &(play_args_v.to)))->sin6_scope_id = 0;
(_RCAST(struct sockaddr_in6 *, &(play_args_v.to)))->sin6_family = AF_INET6;
(_RCAST(struct sockaddr_in6 *, &(play_args_v.to)))->sin6_port = video_port;
(_RCAST(struct sockaddr_in6 *, &(play_args_v.to)))->sin6_addr = ip_media;
}
hasMediaInformation = 1;
}
} else {
uint32_t ip_media;
ip_media = get_remote_ip_media(msg);
if (ip_media != INADDR_NONE) {
audio_port = get_remote_port_media(msg, PAT_AUDIO);
if (audio_port) {
/* We have audio in the SDP: set the to_audio addr */
(_RCAST(struct sockaddr_in *, &(play_args_a.to)))->sin_family = AF_INET;
(_RCAST(struct sockaddr_in *, &(play_args_a.to)))->sin_port = audio_port;
(_RCAST(struct sockaddr_in *, &(play_args_a.to)))->sin_addr.s_addr = ip_media;
}
video_port = get_remote_port_media(msg, PAT_VIDEO);
if (video_port) {
/* We have video in the SDP: set the to_video addr */
(_RCAST(struct sockaddr_in *, &(play_args_v.to)))->sin_family = AF_INET;
(_RCAST(struct sockaddr_in *, &(play_args_v.to)))->sin_port = video_port;
(_RCAST(struct sockaddr_in *, &(play_args_v.to)))->sin_addr.s_addr = ip_media;
}
hasMediaInformation = 1;
}
}
}
#endif
#ifdef RTP_STREAM
/******* Extract RTP remote media infomartion from SDP *******/
/***** Similar to the routines used by the PCAP play code *****/
#define SDP_IPADDR_PREFIX "\nc=IN IP"
#define SDP_AUDIOPORT_PREFIX "\nm=audio"
#define SDP_VIDEOPORT_PREFIX "\nm=video"
void call::extract_rtp_remote_addr (char * msg)
{
char *search;
char *copy;
char ip_addr[128];
int ip_ver;
int audio_port= 0;
int video_port= 0;
/* Look for start of message body
search= strstr(msg,"\r\n\r\n");
if (!search) {
ERROR("extract_rtp_remote_addr: SDP message body not found");
}
msg= search+2; /* skip past header. point to blank line before body */
/* Now search for IP address field */
search= strstr(msg,SDP_IPADDR_PREFIX);
if (search) {
search+= strlen(SDP_IPADDR_PREFIX);
/* Get IP version number from c= */
if (*search=='4') {
ip_ver= 4;
} else if (*search=='6') {
ip_ver= 6;
} else {
ip_ver= 0;
ERROR("extract_rtp_remote_addr: invalid IP version '%c' in SDP message body",*search);
}
search++;
copy= ip_addr;
while ( (*search==' ') || (*search=='\t') ) {
search++;
}
while (!( (*search==' ') || (*search=='\t') || (*search=='\r') || (*search=='\n') )) {
*(copy++)= *(search++);
}
*copy= 0;
} else {
ERROR("extract_rtp_remote_addr: no IP address found in SDP message body");
*ip_addr= 0;
}
/* Now try to find the port number for the audio stream */
search= strstr(msg,SDP_AUDIOPORT_PREFIX);
if (search) {
search+= strlen(SDP_AUDIOPORT_PREFIX);
while ( (*search==' ') || (*search=='\t') ) {
search++;
}
sscanf (search,"%d",&audio_port);
}
/* And find the port number for the video stream */
search= strstr(msg,SDP_VIDEOPORT_PREFIX);
if (search) {
search+= strlen(SDP_VIDEOPORT_PREFIX);
while ( (*search==' ') || (*search=='\t') ) {
search++;
}
sscanf (search,"%d",&video_port);
}
if ((audio_port==0)&&(video_port==0)) {
ERROR("extract_rtp_remote_addr: no m=audio or m=video line found in SDP message body");
}
rtpstream_set_remote (&rtpstream_callinfo,ip_ver,ip_addr,audio_port,video_port);
}
#endif
/******* Very simple hash for retransmission detection *******/
unsigned long call::hash(const char * msg)
{
unsigned long hash = 0;
int c;
if (rtcheck == RTCHECK_FULL) {
while ((c = *msg++))
hash = c + (hash << 6) + (hash << 16) - hash;
} else if (rtcheck == RTCHECK_LOOSE) {
/* Based on section 11.5 (bullet 2) of RFC2543 we only take into account
* the To, From, Call-ID, and CSeq values. */
const char *hdr = get_header_content(msg,"To:");
while ((c = *hdr++))
hash = c + (hash << 6) + (hash << 16) - hash;
hdr = get_header_content(msg,"From:");
while ((c = *hdr++))
hash = c + (hash << 6) + (hash << 16) - hash;
hdr = get_header_content(msg,"Call-ID:");
while ((c = *hdr++))
hash = c + (hash << 6) + (hash << 16) - hash;
hdr = get_header_content(msg,"CSeq:");
while ((c = *hdr++))
hash = c + (hash << 6) + (hash << 16) - hash;
/* For responses, we should also consider the code and body (if any),
* because they are not nearly as well defined as the request retransmission. */
if (!strncmp(msg, "SIP/2.0", strlen("SIP/2.0"))) {
/* Add the first line into the hash. */
hdr = msg + strlen("SIP/2.0");
while ((c = *hdr++) && (c != '\r'))
hash = c + (hash << 6) + (hash << 16) - hash;
/* Add the body (if any) into the hash. */
hdr = strstr(msg, "\r\n\r\n");
if (hdr) {
hdr += strlen("\r\n\r\n");
while ((c = *hdr++))
hash = c + (hash << 6) + (hash << 16) - hash;
}
}
} else {
ERROR("Internal error: Invalid rtcheck %d\n", rtcheck);
}
return hash;
}
/******************* Call class implementation ****************/
call::call(const char *p_id, bool use_ipv6, int userId, struct sockaddr_storage *dest) : listener(p_id, true)
{
init(main_scenario, NULL, dest, p_id, userId, use_ipv6, false, false);
}
call::call(const char *p_id, struct sipp_socket *socket, struct sockaddr_storage *dest) : listener(p_id, true)
{
init(main_scenario, socket, dest, p_id, 0 /* No User. */, socket->ss_ipv6, false /* Not Auto. */, false);
}
call::call(scenario * call_scenario, struct sipp_socket *socket, struct sockaddr_storage *dest, const char * p_id, int userId, bool ipv6, bool isAutomatic, bool isInitialization) : listener(p_id, true)
{
init(call_scenario, socket, dest, p_id, userId, ipv6, isAutomatic, isInitialization);
}
call *call::add_call(int userId, bool ipv6, struct sockaddr_storage *dest)
{
static char call_id[MAX_HEADER_LEN];
const char * src = call_id_string;
int count = 0;
if(!next_number) {
next_number ++;
}
while (*src && count < MAX_HEADER_LEN-1) {
if (*src == '%') {
++src;
switch(*src++) {
case 'u':
count += snprintf(&call_id[count], MAX_HEADER_LEN-count-1,"%u", next_number);
break;
case 'p':
count += snprintf(&call_id[count], MAX_HEADER_LEN-count-1,"%u", pid);
break;
case 's':
count += snprintf(&call_id[count], MAX_HEADER_LEN-count-1,"%s", local_ip);
break;
default: // treat all unknown sequences as %%
call_id[count++] = '%';
break;
}
} else {
call_id[count++] = *src++;
}
}
call_id[count] = 0;
return new call(main_scenario, NULL, dest, call_id, userId, ipv6, false /* Not Auto. */, false);
}
void call::init(scenario * call_scenario, struct sipp_socket *socket, struct sockaddr_storage *dest, const char * p_id, int userId, bool ipv6, bool isAutomatic, bool isInitCall)
{
this->call_scenario = call_scenario;
zombie = false;
debugBuffer = NULL;
debugLength = 0;
msg_index = 0;
last_send_index = 0;
last_send_msg = NULL;
last_send_len = 0;
last_recv_hash = 0;
last_recv_index = -1;
last_recv_msg = NULL;
recv_retrans_hash = 0;
recv_retrans_recv_index = -1;
recv_retrans_send_index = -1;
dialog_route_set = NULL;
next_req_url = NULL;
cseq = 0;
next_retrans = 0;
nb_retrans = 0;
nb_last_delay = 0;
paused_until = 0;
call_port = 0;
comp_state = NULL;
start_time = clock_tick;
call_established=false ;
ack_is_pending=false ;
last_recv_msg = NULL;
cseq = base_cseq;
nb_last_delay = 0;
use_ipv6 = ipv6;
queued_msg = NULL;
dialog_authentication = NULL;
dialog_challenge_type = 0;
#ifdef _USE_OPENSSL
m_ctx_ssl = NULL ;
m_bio = NULL ;
#endif
#ifdef RTP_STREAM
/* check and warn on rtpstream_new_call result? -> error alloc'ing mem */
rtpstream_new_call (&rtpstream_callinfo);
#endif
#ifdef PCAPPLAY
hasMediaInformation = 0;
#endif
call_remote_socket = NULL;
if (socket) {
associate_socket(socket);
socket->ss_count++;
} else {
call_socket = NULL;
}
if (dest) {
memcpy(&call_peer, dest, SOCK_ADDR_SIZE(dest));
} else {
memset(&call_peer, 0, sizeof(call_peer));
}
// initialising the CallVariable with the Scenario variable
int i;
VariableTable *userVars = NULL;
bool putUserVars = false;
if (userId) {
int_vt_map::iterator it = userVarMap.find(userId);
if (it != userVarMap.end()) {
userVars = it->second;
}
} else {
userVars = new VariableTable(userVariables);
/* Creating this table creates a reference to it, but if it is really used,
* then the refcount will be increased. */
putUserVars = true;
}
if (call_scenario->allocVars->size > 0) {
M_callVariableTable = new VariableTable(userVars, call_scenario->allocVars->size);
} else if (userVars->size > 0) {
M_callVariableTable = userVars->getTable();
} else if (globalVariables->size > 0) {
M_callVariableTable = globalVariables->getTable();
} else {
M_callVariableTable = NULL;
}
if (putUserVars) {
userVars->putTable();
}
if (call_scenario->transactions.size() > 0) {
transactions = (struct txnInstanceInfo *)malloc(sizeof(txnInstanceInfo) * call_scenario->transactions.size());
memset(transactions, 0, sizeof(struct txnInstanceInfo) * call_scenario->transactions.size());
} else {
transactions = NULL;
}
// If not updated by a message we use the start time
// information to compute rtd information
start_time_rtd = (unsigned long long *)malloc(sizeof(unsigned long long) * call_scenario->stats->nRtds());
if (!start_time_rtd) {
ERROR("Could not allocate RTD times!");
}
rtd_done = (bool *)malloc(sizeof(bool) * call_scenario->stats->nRtds());
if (!start_time_rtd) {
ERROR("Could not allocate RTD done!");
}
for (i = 0; i < call_scenario->stats->nRtds(); i++) {
start_time_rtd[i] = getmicroseconds();
rtd_done[i] = false;
}
// by default, last action result is NO_ERROR
last_action_result = call::E_AR_NO_ERROR;
this->userId = userId;
/* For automatic answer calls to an out of call request, we must not */
/* increment the input files line numbers to not disturb */
/* the input files read mechanism (otherwise some lines risk */
/* to be systematically skipped */
if (!isAutomatic) {
m_lineNumber = new file_line_map();
for (file_map::iterator file_it = inFiles.begin();
file_it != inFiles.end();
file_it++) {
(*m_lineNumber)[file_it->first] = file_it->second->nextLine(userId);
}
} else {
m_lineNumber = NULL;
}
this->initCall = isInitCall;
#ifdef PCAPPLAY
memset(&(play_args_a.to), 0, sizeof(struct sockaddr_storage));
memset(&(play_args_v.to), 0, sizeof(struct sockaddr_storage));
memset(&(play_args_a.from), 0, sizeof(struct sockaddr_storage));
memset(&(play_args_v.from), 0, sizeof(struct sockaddr_storage));
hasMediaInformation = 0;
media_thread = 0;
#endif
peer_tag = NULL;
recv_timeout = 0;
send_timeout = 0;
timewait = false;
if (!isAutomatic) {
/* Not advancing the number is safe, because for automatic calls we do not
* assign the identifier, the only other place it is used is for the auto
* media port. */
number = next_number++;
if (use_tdmmap) {
tdm_map_number = get_tdm_map_number();
if (tdm_map_number == 0) {
/* Can't create the new call */
WARNING("Can't create new outgoing call: all tdm_map circuits busy");
computeStat(CStat::E_CALL_FAILED);
computeStat(CStat::E_FAILED_OUTBOUND_CONGESTION);
this->zombie = true;
return;
}
/* Mark the entry in the list as busy */
tdm_map[tdm_map_number - 1] = true;
} else {
tdm_map_number = 0;
}
}
callDebug("Starting call %s\n", id);
setRunning();
}
int call::_callDebug(const char *fmt, ...)
{
va_list ap;
if (!useCallDebugf) {
return 0;
}
/* First we figure out how much to allocate. */
va_start(ap, fmt);
int ret = vsnprintf(NULL, 0, fmt, ap);
va_end(ap);
debugBuffer = (char *)realloc(debugBuffer, debugLength + ret + TIME_LENGTH + 2);
if (!debugBuffer) {
ERROR("Could not allocate buffer (%d bytes) for callDebug file!", debugLength + ret + TIME_LENGTH + 2);
}
struct timeval now;
gettimeofday(&now, NULL);
debugLength += snprintf(debugBuffer + debugLength, TIME_LENGTH + 2, "%s ", CStat::formatTime(&now));
va_start(ap, fmt);
debugLength += vsnprintf(debugBuffer + debugLength, ret + 1, fmt, ap);
va_end(ap);
return ret;
}
call::~call()
{
computeStat(CStat::E_ADD_CALL_DURATION, clock_tick - start_time);
if(comp_state) {
comp_free(&comp_state);
}
if (call_remote_socket && (call_remote_socket != main_remote_socket)) {
sipp_close_socket(call_remote_socket);
}
/* Deletion of the call variable */
if(M_callVariableTable) {
M_callVariableTable->putTable();
}
if (m_lineNumber) {
delete m_lineNumber;
}
if (userId) {
opentask::freeUser(userId);
}
if (transactions) {
for (unsigned int i = 0; i < call_scenario->transactions.size(); i++) {
free(transactions[i].txnID);
}
free(transactions);
}
if(last_recv_msg) {
free(last_recv_msg);
}
if(last_send_msg) {
free(last_send_msg);
}
if(peer_tag) {
free(peer_tag);
}
if(dialog_route_set) {
free(dialog_route_set);
}
if(next_req_url) {
free(next_req_url);
}
#ifdef RTP_STREAM
rtpstream_end_call (&rtpstream_callinfo);
#endif
if(dialog_authentication) {
free(dialog_authentication);
}
if (use_tdmmap) {
tdm_map[tdm_map_number] = false;
}
# ifdef PCAPPLAY
if (media_thread != 0) {
pthread_cancel(media_thread);
pthread_join(media_thread, NULL);
}
#endif
free(start_time_rtd);
free(rtd_done);
free(debugBuffer);
}
void call::computeStat (CStat::E_Action P_action)
{
if (initCall) {
return;
}
call_scenario->stats->computeStat(P_action);
}
void call::computeStat (CStat::E_Action P_action, unsigned long P_value)
{
if (initCall) {
return;
}
call_scenario->stats->computeStat(P_action, P_value);
}
void call::computeStat (CStat::E_Action P_action, unsigned long P_value, int which)
{
if (initCall) {
return;
}
call_scenario->stats->computeStat(P_action, P_value, which);
}
/* Dump call info to error log. */
void call::dump()
{
char s[MAX_HEADER_LEN];
char tmpbuf[MAX_HEADER_LEN];
sprintf(s, "%s: State %d", id, msg_index);
if (next_retrans) {
snprintf(tmpbuf, 64, "%s (next retrans %u)", s, next_retrans);
strcat(s, tmpbuf);
}
if (paused_until) {
snprintf(tmpbuf, 64, "%s (paused until %u)", s, paused_until);
strcat(s, tmpbuf);
}
if (recv_timeout) {
snprintf(tmpbuf, 64, "%s (recv timeout %u)", s, recv_timeout);
strcat(s, tmpbuf);
}
if (send_timeout) {
snprintf(tmpbuf, 64, "%s (send timeout %u)", s, send_timeout);
strcat(s, tmpbuf);
}
WARNING("%s", s);
}
bool call::connect_socket_if_needed()
{
bool existing;
if(call_socket) return true;
if(!multisocket) return true;
if(transport == T_UDP) {
struct sockaddr_storage saddr;
if(sendMode != MODE_CLIENT)
return true;
char peripaddr[256];
if (!peripsocket) {
if ((associate_socket(new_sipp_call_socket(use_ipv6, transport, &existing))) == NULL) {
ERROR_NO("Unable to get a UDP socket (1)");
}
} else {
char *tmp = peripaddr;
getFieldFromInputFile(ip_file, peripfield, NULL, tmp);
map<string, struct sipp_socket *>::iterator i;
i = map_perip_fd.find(peripaddr);
if (i == map_perip_fd.end()) {
// Socket does not exist
if ((associate_socket(new_sipp_call_socket(use_ipv6, transport, &existing))) == NULL) {
ERROR_NO("Unable to get a UDP socket (2)");
} else {
/* Ensure that it stays persistent, because it is recorded in the map. */
call_socket->ss_count++;
map_perip_fd[peripaddr] = call_socket;
}
} else {
// Socket exists already
associate_socket(i->second);
existing = true;
i->second->ss_count++;
}
}
if (existing) {
return true;
}
memset(&saddr, 0, sizeof(struct sockaddr_storage));
memcpy(&saddr,
local_addr_storage->ai_addr,
SOCK_ADDR_SIZE(
_RCAST(struct sockaddr_storage *,local_addr_storage->ai_addr)));
if (use_ipv6) {
saddr.ss_family = AF_INET6;
} else {
saddr.ss_family = AF_INET;
}
if (peripsocket) {
struct addrinfo * h ;
struct addrinfo hints;
memset((char*)&hints, 0, sizeof(hints));
hints.ai_flags = AI_PASSIVE;
hints.ai_family = PF_UNSPEC;
getaddrinfo(peripaddr,
NULL,
&hints,
&h);
memcpy(&saddr,
h->ai_addr,
SOCK_ADDR_SIZE(
_RCAST(struct sockaddr_storage *,h->ai_addr)));
if (use_ipv6) {
(_RCAST(struct sockaddr_in6 *, &saddr))->sin6_port = htons(local_port);
} else {
(_RCAST(struct sockaddr_in *, &saddr))->sin_port = htons(local_port);
}
}
if (sipp_bind_socket(call_socket, &saddr, &call_port)) {
ERROR_NO("Unable to bind UDP socket");
}
} else { /* TCP, SCTP or TLS. */
struct sockaddr_storage *L_dest = &remote_sockaddr;
if ((associate_socket(new_sipp_call_socket(use_ipv6, transport, &existing))) == NULL) {
ERROR_NO("Unable to get a TCP/SCTP/TLS socket");
}
if (existing) {
return true;
}
sipp_customize_socket(call_socket);
if (use_remote_sending_addr) {
L_dest = &remote_sending_sockaddr;
}
if (sipp_connect_socket(call_socket, L_dest)) {
if (reconnect_allowed()) {
if(errno == EINVAL) {
/* This occurs sometime on HPUX but is not a true INVAL */
WARNING("Unable to connect a TCP/SCTP/TLS socket, remote peer error");
} else {
WARNING("Unable to connect a TCP/SCTP/TLS socket");
}
/* This connection failed. We must be in multisocket mode, because
* otherwise we would already have a call_socket. This call can not
* succeed, but does not affect any of our other calls. We do decrement
* the reconnection counter however. */
if (reset_number != -1) {
reset_number--;
}
computeStat(CStat::E_CALL_FAILED);
computeStat(CStat::E_FAILED_TCP_CONNECT);
delete this;
return false;
} else {
if(errno == EINVAL) {
/* This occurs sometime on HPUX but is not a true INVAL */
ERROR("Unable to connect a TCP/SCTP/TLS socket, remote peer error");
} else {
ERROR_NO("Unable to connect a TCP/SCTP/TLS socket");
}
}
}
}
return true;
}
bool call::lost(int index)
{
static int inited = 0;
double percent = global_lost;
if(!lose_packets) return false;
if (call_scenario->messages[index]->lost >= 0) {
percent = call_scenario->messages[index]->lost;
}
if (percent == 0) {
return false;
}
if(!inited) {
srand((unsigned int) time(NULL));
inited = 1;
}
return (((double)rand() / (double)RAND_MAX) < (percent / 100.0));
}
int call::send_raw(const char * msg, int index, int len)
{
struct sipp_socket *sock;
int rc;
callDebug("Sending %s message for call %s (index %d, hash %u):\n%s\n\n", TRANSPORT_TO_STRING(transport), id, index, hash(msg), msg);
if((index!=-1) && (lost(index))) {
TRACE_MSG("%s message voluntary lost (while sending).", TRANSPORT_TO_STRING(transport));
callDebug("%s message voluntary lost (while sending) (index %d, hash %u).\n", TRANSPORT_TO_STRING(transport), index, hash(msg));
if(comp_state) {
comp_free(&comp_state);
}
call_scenario->messages[index] -> nb_lost++;
return 0;
}
sock = call_socket;
if ((use_remote_sending_addr) && (sendMode == MODE_SERVER)) {
if (!call_remote_socket) {
if (multisocket || !main_remote_socket) {
struct sockaddr_storage *L_dest = &remote_sending_sockaddr;
if((call_remote_socket= new_sipp_socket(use_ipv6, transport)) == NULL) {
ERROR_NO("Unable to get a socket for rsa option");
}
sipp_customize_socket(call_remote_socket);
if(transport != T_UDP) {
if (sipp_connect_socket(call_remote_socket, L_dest)) {
if(errno == EINVAL) {
/* This occurs sometime on HPUX but is not a true INVAL */
ERROR("Unable to connect a %s socket for rsa option, remote peer error", TRANSPORT_TO_STRING(transport));
} else {
ERROR_NO("Unable to connect a socket for rsa option");
}
}