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scenario.cpp
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scenario.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
* Venkatesh
* Lee Ballard
* Guillaume TEISSIER from FTR&D
* Wolfgang Beck
* Marc Van Diest from Belgacom
* Charles P. Wright from IBM Research
* Michael Stovenour
*/
#include <stdlib.h>
#include "config.h"
#include "sipp.hpp"
#ifdef HAVE_GSL
#include <gsl/gsl_rng.h>
#include <gsl/gsl_randist.h>
#include <gsl/gsl_cdf.h>
#endif
/************************ Class Constructor *************************/
message::message(int index, const char *desc)
{
this->index = index;
this->desc = desc;
pause_distribution = NULL; // delete on exit
pause_variable = -1;
pause_desc = NULL; // free on exit
sessions = 0;
bShouldRecordRoutes = 0;
bShouldAuthenticate = 0;
send_scheme = NULL; // delete on exit
retrans_delay = 0;
timeout = 0;
recv_response = 0;
recv_request = NULL; // free on exit
optional = 0;
advance_state = true;
regexp_match = 0;
regexp_compile = NULL; // regfree (if not NULL) and free on exit
/* Anyway */
start_rtd = 0;
stop_rtd = 0;
repeat_rtd = 0;
lost = -1;
crlf = 0;
ignoresdp = false;
hide = 0;
display_str = NULL; // free on exit
test = -1;
condexec = -1;
condexec_inverse = false;
chance = 0;/* meaning always */
next = -1;
nextLabel = NULL; // free on exit
on_timeout = -1;
onTimeoutLabel = NULL; // free on exit
timewait = false;
/* 3pcc extended mode */
peer_dest = NULL; // free on exit
peer_src = NULL; // free on exit
/* Statistics */
nb_sent = 0;
nb_recv = 0;
nb_sent_retrans = 0;
nb_recv_retrans = 0;
nb_timeout = 0;
nb_unexp = 0;
nb_lost = 0;
counter = 0;
M_actions = NULL; // delete on exit
M_type = 0;
M_sendCmdData = NULL; // delete on exit
M_nbCmdSent = 0;
M_nbCmdRecv = 0;
content_length_flag = ContentLengthNoPresent;
/* How to match responses to this message. */
start_txn = 0;
response_txn = 0;
ack_txn = 0;
recv_response_for_cseq_method_list = NULL; // free on exit
}
message::~message()
{
delete(pause_distribution);
free(pause_desc);
delete(send_scheme);
free(recv_request);
if (regexp_compile != NULL) {
regfree(regexp_compile);
}
free(regexp_compile);
free(display_str);
free(nextLabel);
free(onTimeoutLabel);
free(peer_dest);
free(peer_src);
delete(M_actions);
delete(M_sendCmdData);
free(recv_response_for_cseq_method_list);
}
/******** Global variables which compose the scenario file **********/
scenario *main_scenario;
scenario *ooc_scenario;
scenario *aa_scenario;
scenario *display_scenario;
/* This mode setting refers to whether we open calls autonomously (MODE_CLIENT)
* or in response to requests (MODE_SERVER). */
int creationMode = MODE_CLIENT;
/* Send mode. Do we send to a fixed address or to the last one we got. */
int sendMode = MODE_CLIENT;
/* This describes what our 3PCC behavior is. */
int thirdPartyMode = MODE_3PCC_NONE;
/*************** Helper functions for various types *****************/
long get_long(const char *ptr, const char *what)
{
char *endptr;
long ret;
ret = strtol(ptr, &endptr, 0);
if (*endptr) {
ERROR("%s, \"%s\" is not a valid integer!", what, ptr);
}
return ret;
}
unsigned long long get_long_long(const char *ptr, const char *what)
{
char *endptr;
unsigned long long ret;
ret = strtoull(ptr, &endptr, 0);
if (*endptr) {
ERROR("%s, \"%s\" is not a valid integer!", what, ptr);
}
return ret;
}
/* This function returns a time in milliseconds from a string.
* The multiplier is used to convert from the default input type into
* milliseconds. For example, for seconds you should use 1000 and for
* milliseconds use 1. */
long get_time(const char *ptr, const char *what, int multiplier)
{
char *endptr;
const char *p;
long ret = 0;
double dret;
int i;
if (!isdigit(*ptr)) {
ERROR("%s, \"%s\" is not a valid time!", what, ptr);
}
for (i = 0, p = ptr; *p; p++) {
if (*p == ':') {
i++;
}
}
if (i == 1) { /* mm:ss */
ERROR("%s, \"%s\" mm:ss not implemented yet!", what, ptr);
} else if (i == 2) { /* hh:mm:ss */
ERROR("%s, \"%s\" hh:mm:ss not implemented yet!", what, ptr);
} else if (i != 0) {
ERROR("%s, \"%s\" is not a valid time!", what, ptr);
}
dret = strtod(ptr, &endptr);
if (*endptr) {
if (!strcmp(endptr, "s")) { /* Seconds */
ret = (long)(dret * 1000);
} else if (!strcmp(endptr, "ms")) { /* Milliseconds. */
ret = (long)dret;
} else if (!strcmp(endptr, "m")) { /* Minutes. */
ret = (long)(dret * 60000);
} else if (!strcmp(endptr, "h")) { /* Hours. */
ret = (long)(dret * 60 * 60 * 1000);
} else {
ERROR("%s, \"%s\" is not a valid time!", what, ptr);
}
} else {
ret = (long)(dret * multiplier);
}
return ret;
}
double get_double(const char *ptr, const char *what)
{
char *endptr;
double ret;
ret = strtod(ptr, &endptr);
if (*endptr) {
ERROR("%s, \"%s\" is not a floating point number!", what, ptr);
}
return ret;
}
/* If the value is enclosed in [brackets], it is assumed to be
* a command-line supplied keyword value (-key). */
static char* xp_get_keyword_value(const char *name)
{
const char* ptr = xp_get_value(name);
return ptr ? strdup(ptr) : NULL;
}
static char* xp_get_string(const char *name, const char *what)
{
const char *ptr;
char *unescaped;
if (!(ptr = xp_get_value(name))) {
ERROR("%s is missing the required '%s' parameter.", what, name);
}
unescaped = (char *)malloc(strlen(ptr) + 1);
if (!unescaped) {
ERROR("Out of memory!");
}
xp_unescape(ptr, unescaped);
return unescaped;
}
static double xp_get_double(const char *name, const char *what)
{
const char *ptr;
char *helptext;
double val;
if (!(ptr = xp_get_value(name))) {
ERROR("%s is missing the required '%s' parameter.", what, name);
}
helptext = (char *)malloc(100 + strlen(name) + strlen(what));
sprintf(helptext, "%s '%s' parameter", what, name);
val = get_double(ptr, helptext);
free(helptext);
return val;
}
static long xp_get_long(const char *name, const char *what)
{
const char *ptr;
char *helptext;
long val;
if (!(ptr = xp_get_value(name))) {
ERROR("%s is missing the required '%s' parameter.", what, name);
}
helptext = (char *)malloc(100 + strlen(name) + strlen(what));
sprintf(helptext, "%s '%s' parameter", what, name);
val = get_long(ptr, helptext);
free(helptext);
return val;
}
static long xp_get_long(const char *name, const char *what, long defval)
{
if (!(xp_get_value(name))) {
return defval;
}
return xp_get_long(name, what);
}
static bool xp_get_bool(const char *name, const char *what)
{
const char *ptr;
char *helptext;
bool val;
if (!(ptr = xp_get_value(name))) {
ERROR("%s is missing the required '%s' parameter.", what, name);
}
helptext = (char *)malloc(100 + strlen(name) + strlen(what));
sprintf(helptext, "%s '%s' parameter", what, name);
val = get_bool(ptr, helptext);
free(helptext);
return val;
}
static bool xp_get_bool(const char *name, const char *what, bool defval)
{
if (!(xp_get_value(name))) {
return defval;
}
return xp_get_bool(name, what);
}
int scenario::get_txn(const char *txnName, const char *what, bool start, bool isInvite, bool isAck)
{
/* Check the name's validity. */
if (txnName[0] == '\0') {
ERROR("Variable names may not be empty for %s", what);
}
if (strcspn(txnName, "$,") != strlen(txnName)) {
ERROR("Variable names may not contain $ or , for %s", what);
}
/* If this transaction has already been used, then we have nothing to do. */
str_int_map::iterator txn_it = txnMap.find(txnName);
if (txn_it != txnMap.end()) {
if (start) {
/* We need to fill in the invite field. */
transactions[txn_it->second - 1].started++;
} else if (isAck) {
transactions[txn_it->second - 1].acks++;
} else {
transactions[txn_it->second - 1].responses++;
}
return txn_it->second;
}
/* Assign this variable the next slot. */
struct txnControlInfo transaction;
transaction.name = strdup(txnName);
if (start) {
transaction.started = 1;
transaction.responses = 0;
transaction.acks = 0;
transaction.isInvite = isInvite;
} else if (isAck) {
/* Does not start or respond to this txn. */
transaction.started = 0;
transaction.responses = 0;
transaction.acks = 1;
transaction.isInvite = false;
} else {
transaction.started = 0;
transaction.responses = 1;
transaction.acks = 0;
transaction.isInvite = false;
}
transactions.push_back(transaction);
int txnNum = transactions.size();
txnMap[txnName] = txnNum;
return txnNum;
}
int scenario::find_var(const char *varName)
{
return allocVars->find(varName, false);
}
void scenario::addRtpTaskThreadID(pthread_t id)
{
threadIDs[id] = "threadID";
}
void scenario::removeRtpTaskThreadID(pthread_t id)
{
threadIDs.erase(id);
}
std::unordered_map<pthread_t, std::string>& scenario::fetchRtpTaskThreadIDs()
{
return threadIDs;
}
int scenario::get_var(const char *varName, const char *what)
{
/* Check the name's validity. */
if (varName[0] == '\0') {
ERROR("Transaction names may not be empty for %s", what);
}
if (strcspn(varName, "$,") != strlen(varName)) {
ERROR("Transaction names may not contain '$' or ',' for %s", what);
}
return allocVars->find(varName, true);
}
int scenario::xp_get_var(const char *name, const char *what)
{
const char *ptr;
if (!(ptr = xp_get_value(name))) {
ERROR("%s is missing the required '%s' variable parameter.", what, name);
}
return get_var(ptr, what);
}
static int xp_get_optional(const char *name, const char *what)
{
const char *ptr = xp_get_value(name);
if (!ptr) {
return OPTIONAL_FALSE;
}
if(!strcmp(ptr, "true")) {
return OPTIONAL_TRUE;
} else if(!strcmp(ptr, "global")) {
return OPTIONAL_GLOBAL;
} else if(!strcmp(ptr, "false")) {
return OPTIONAL_FALSE;
} else {
ERROR("Could not understand optional value for %s: %s", what, ptr);
}
return OPTIONAL_FALSE;
}
int scenario::xp_get_var(const char *name, const char *what, int defval)
{
const char *ptr;
if (!(ptr = xp_get_value(name))) {
return defval;
}
return xp_get_var(name, what);
}
bool get_bool(const char *ptr, const char *what)
{
char *endptr;
long ret;
if (!strcasecmp(ptr, "true")) {
return true;
}
if (!strcasecmp(ptr, "false")) {
return false;
}
ret = strtol(ptr, &endptr, 0);
if (*endptr) {
ERROR("%s, \"%s\" is not a valid boolean!", what, ptr);
}
return ret ? true : false;
}
/* Pretty print a time. */
int time_string(double ms, char *res, int reslen)
{
if (ms < 10000) {
/* Less then 10 seconds we represent accurately. */
if ((int)(ms + 0.9999) == (int)(ms)) {
/* We have an integer, or close enough to it. */
return snprintf(res, reslen, "%dms", (int)ms);
} else {
if (ms < 1000) {
return snprintf(res, reslen, "%.2lfms", ms);
} else {
return snprintf(res, reslen, "%.1lfms", ms);
}
}
} else if (ms < 60000) {
/* We round to 100ms for times less than a minute. */
return snprintf(res, reslen, "%.1fs", ms/1000);
} else if (ms < 60 * 60000) {
/* We round to 1s for times more than a minute. */
int s = (unsigned int)(ms / 1000);
int m = s / 60;
s %= 60;
return snprintf(res, reslen, "%d:%02d", m, s);
} else {
int s = (unsigned int)(ms / 1000);
int m = s / 60;
int h = m / 60;
s %= 60;
m %= 60;
return snprintf(res, reslen, "%d:%02d:%02d", h, m, s);
}
}
/* For backwards compatibility, we assign "true" to slot 1, false to 0, and
* allow other valid integers. */
int scenario::get_rtd(const char *ptr, bool start)
{
if(!strcmp(ptr, (char *)"false"))
return 0;
if(!strcmp(ptr, (char *)"true"))
return stats->findRtd("1", start);
return stats->findRtd(ptr, start);
}
/* Get a counter */
int scenario::get_counter(const char *ptr, const char *what)
{
/* Check the name's validity. */
if (ptr[0] == '\0') {
ERROR("Counter names names may not be empty for %s", what);
}
if (strcspn(ptr, "$,") != strlen(ptr)) {
ERROR("Counter names may not contain $ or , for %s", what);
}
return stats->findCounter(ptr, true);
}
/* Some validation functions. */
void scenario::validate_variable_usage()
{
allocVars->validate();
}
void scenario::validate_txn_usage()
{
for (unsigned int i = 0; i < transactions.size(); i++) {
if(transactions[i].started == 0) {
ERROR("Transaction %s is never started!", transactions[i].name);
} else if(transactions[i].responses == 0) {
ERROR("Transaction %s has no responses defined!", transactions[i].name);
}
if (transactions[i].isInvite && transactions[i].acks == 0) {
ERROR("Transaction %s is an INVITE transaction without an ACK!", transactions[i].name);
}
if (!transactions[i].isInvite && (transactions[i].acks > 0)) {
ERROR("Transaction %s is a non-INVITE transaction with an ACK!", transactions[i].name);
}
}
}
/* Apply the next and ontimeout labels according to our map. */
void scenario::apply_labels(msgvec v, str_int_map labels)
{
for (unsigned int i = 0; i < v.size(); i++) {
if (v[i]->nextLabel) {
str_int_map::iterator label_it = labels.find(v[i]->nextLabel);
if (label_it == labels.end()) {
ERROR("The label '%s' was not defined (index %d, next attribute)", v[i]->nextLabel, i);
}
v[i]->next = label_it->second;
}
if (v[i]->onTimeoutLabel) {
str_int_map::iterator label_it = labels.find(v[i]->onTimeoutLabel);
if (label_it == labels.end()) {
ERROR("The label '%s' was not defined (index %d, ontimeout attribute)", v[i]->onTimeoutLabel, i);
}
v[i]->on_timeout = label_it->second;
}
}
}
int get_cr_number(const char *src)
{
int res=0;
while(*src) {
if(*src == '\n') res++;
src++;
}
return res;
}
static char* clean_cdata(char *ptr, int *removed_crlf = NULL)
{
char * msg;
while((*ptr == ' ') || (*ptr == '\t') || (*ptr == '\n')) ptr++;
msg = (char *) malloc(strlen(ptr) + 3);
if(!msg) {
ERROR("Memory Overflow");
}
strcpy(msg, ptr);
ptr = msg + strlen(msg);
ptr--;
while((ptr >= msg) &&
((*ptr == ' ') ||
(*ptr == '\t') ||
(*ptr == '\n'))) {
if(*ptr == '\n' && removed_crlf) {
(*removed_crlf)++;
}
*ptr-- = 0;
}
if(ptr == msg) {
ERROR("Empty cdata in xml scenario file");
}
while ((ptr = strstr(msg, "\n "))) {
memmove(ptr + 1, ptr + 2, strlen(ptr) - 1);
}
while ((ptr = strstr(msg, " \n"))) {
memmove(ptr, ptr + 1, strlen(ptr));
}
while ((ptr = strstr(msg, "\n\t"))) {
memmove(ptr + 1, ptr + 2, strlen(ptr) - 1);
}
while ((ptr = strstr(msg, "\t\n"))) {
memmove(ptr, ptr + 1, strlen(ptr));
}
if (!strstr(msg, "\n\n")) {
strcat(msg, "\n\n");
}
return msg;
}
/********************** Scenario File analyser **********************/
/* Set the path of the audio file pass in arguments to the defaut scenario audio_file */
char* set_audio_file(const char* buffer, char* path) {
size_t len = strlen(buffer);
size_t len2 = strlen(path);
char* str = new char[len + len2 + 1];
if (path != NULL) {
for (size_t i = 0; i < len + len2; i++) {
str[i] = '\0';
}
size_t i = 0;
size_t j = 0;
size_t k = 0;
for (k, j; k < len && buffer[k] != '$'; k++, j++) {
str[k] = buffer[k];
}
while (i < len2) {
str[k + i] = path[i];
i++;
}
j++;
for (k, j; j < len; k++, j++) {
str[k + i] = buffer[j];
}
}
return str;
}
void scenario::checkOptionalRecv(char *elem, unsigned int scenario_file_cursor)
{
if (last_recv_optional) {
ERROR("<recv> before <%s> sequence without a mandatory message. Please remove one 'optional=true' (element %d).", elem, scenario_file_cursor);
}
last_recv_optional = false;
}
scenario::scenario(char * filename, int deflt, char* path)
{
char * elem;
char *method_list = NULL;
unsigned int scenario_file_cursor = 0;
int L_content_length = 0 ;
char * peer;
const char* cptr;
last_recv_optional = false;
if(filename) {
if(!xp_set_xml_buffer_from_file(filename)) {
ERROR("Unable to load or parse '%s' xml scenario file", filename);
}
} else if (deflt == 12) {
char* set_audio = set_audio_file(default_scenario[deflt], path);
if(!xp_set_xml_buffer_from_string(set_audio)) {
ERROR("Unable to load default xml scenario file");
}
delete set_audio;
} else {
if(!xp_set_xml_buffer_from_string(default_scenario[deflt])) {
ERROR("Unable to load default xml scenario file");
}
}
stats = new CStat();
allocVars = new AllocVariableTable(userVariables);
hidedefault = false;
elem = xp_open_element(0);
if (!elem) {
ERROR("No element in xml scenario file");
}
if(strcmp("scenario", elem)) {
ERROR("No 'scenario' section in xml scenario file");
}
if ((cptr = xp_get_value("name"))) {
name = strdup(cptr);
} else {
name = strdup("");
}
duration = 0;
found_timewait = false;
scenario_file_cursor = 0;
while ((elem = xp_open_element(scenario_file_cursor))) {
char * ptr;
scenario_file_cursor ++;
if(!strcmp(elem, "CallLengthRepartition")) {
ptr = xp_get_string("value", "CallLengthRepartition");
stats->setRepartitionCallLength(ptr);
free(ptr);
} else if(!strcmp(elem, "ResponseTimeRepartition")) {
ptr = xp_get_string("value", "ResponseTimeRepartition");
stats->setRepartitionResponseTime(ptr);
free(ptr);
} else if(!strcmp(elem, "Global")) {
ptr = xp_get_string("variables", "Global");
char ** currentTabVarName = NULL;
int currentNbVarNames;
createStringTable(ptr, ¤tTabVarName, ¤tNbVarNames);
for (int i = 0; i < currentNbVarNames; i++) {
globalVariables->find(currentTabVarName[i], true);
}
freeStringTable(currentTabVarName, currentNbVarNames);
free(ptr);
} else if(!strcmp(elem, "User")) {
ptr = xp_get_string("variables", "User");
char ** currentTabVarName = NULL;
int currentNbVarNames;
createStringTable(ptr, ¤tTabVarName, ¤tNbVarNames);
for (int i = 0; i < currentNbVarNames; i++) {
userVariables->find(currentTabVarName[i], true);
}
freeStringTable(currentTabVarName, currentNbVarNames);
free(ptr);
} else if(!strcmp(elem, "Reference")) {
ptr = xp_get_string("variables", "Reference");
char ** currentTabVarName = NULL;
int currentNbVarNames;
createStringTable(ptr, ¤tTabVarName, ¤tNbVarNames);
for (int i = 0; i < currentNbVarNames; i++) {
int id = allocVars->find(currentTabVarName[i], false);
if (id == -1) {
ERROR("Could not reference non-existant variable '%s'", currentTabVarName[i]);
}
}
freeStringTable(currentTabVarName, currentNbVarNames);
free(ptr);
} else if(!strcmp(elem, "DefaultMessage")) {
char *id = xp_get_string("id", "DefaultMessage");
if(!(ptr = xp_get_cdata())) {
ERROR("No CDATA in 'send' section of xml scenario file");
}
char *msg = clean_cdata(ptr);
set_default_message(id, msg);
free(id);
/* XXX: This should really be per scenario. */
} else if(!strcmp(elem, "label")) {
ptr = xp_get_string("id", "label");
if (labelMap.find(ptr) != labelMap.end()) {
ERROR("The label name '%s' is used twice.", ptr);
}
labelMap[ptr] = messages.size();
free(ptr);
} else if (!strcmp(elem, "init")) {
/* We have an init section, which must be full of nops or labels. */
int nop_cursor = 0;
char *initelem;
while ((initelem = xp_open_element(nop_cursor++))) {
if (!strcmp(initelem, "nop")) {
/* We should parse this. */
message *nopmsg = new message(initmessages.size(), "scenario initialization");
initmessages.push_back(nopmsg);
nopmsg->M_type = MSG_TYPE_NOP;
getCommonAttributes(nopmsg);
} else if (!strcmp(initelem, "label")) {
/* Add an init label. */
cptr = xp_get_value("id");
if (initLabelMap.find(cptr) != initLabelMap.end()) {
ERROR("The label name '%s' is used twice.", cptr);
}
initLabelMap[cptr] = initmessages.size();
} else {
ERROR("Invalid element in an init stanza: '%s'", initelem);
}
xp_close_element();
}
} else { /** Message Case */
if (found_timewait) {
ERROR("<timewait> can only be the last message in a scenario!");
}
message *curmsg = new message(messages.size(), name ? name : "unknown scenario");
messages.push_back(curmsg);
if(!strcmp(elem, "send")) {
checkOptionalRecv(elem, scenario_file_cursor);
curmsg->M_type = MSG_TYPE_SEND;
/* Sent messages descriptions */
if(!(ptr = xp_get_cdata())) {
ERROR("No CDATA in 'send' section of xml scenario file");
}
int removed_clrf = 0;
char * msg = clean_cdata(ptr, &removed_clrf);
L_content_length = xp_get_content_length(msg);
switch (L_content_length) {
case -1 :
// the msg does not contain content-length field
break ;
case 0 :
curmsg -> content_length_flag =
message::ContentLengthValueZero; // Initialize to No present
break ;
default :
curmsg -> content_length_flag =
message::ContentLengthValueNoZero; // Initialize to No present
break ;
}
if((msg[strlen(msg) - 1] != '\n') && (removed_clrf)) {
strcat(msg, "\n");
}
char *tsrc = msg;
while(*tsrc++);
curmsg -> send_scheme = new SendingMessage(this, msg);
free(msg);
// If this is a request we are sending, then store our transaction/method matching information.
if (!curmsg->send_scheme->isResponse()) {
char *method = curmsg->send_scheme->getMethod();
bool isInvite = !strcmp(method, "INVITE");
bool isAck = !strcmp(method, "ACK");
if ((cptr = xp_get_value("start_txn"))) {
if (isAck) {
ERROR("An ACK message can not start a transaction!");
}
curmsg->start_txn = get_txn(cptr, "start transaction", true, isInvite, false);
} else if ((cptr = xp_get_value("ack_txn"))) {
if (!isAck) {
ERROR("The ack_txn attribute is valid only for ACK messages!");
}
curmsg->ack_txn = get_txn(cptr, "ack transaction", false, false, true);
} else {
int len = method_list ? strlen(method_list) : 0;
method_list = (char *)realloc(method_list, len + strlen(method) + 1);
if (!method_list) {
ERROR_NO("Out of memory allocating method_list!");
}
strcpy(method_list + len, method);
}
} else {
if (xp_get_value("start_txn")) {
ERROR("Responses can not start a transaction");
}
if (xp_get_value("ack_txn")) {
ERROR("Responses can not ACK a transaction");
}
}
if (xp_get_value("response_txn")) {
ERROR("response_txn can only be used for received messages.");
}
curmsg -> retrans_delay = xp_get_long("retrans", "retransmission timer", 0);
curmsg -> timeout = xp_get_long("timeout", "message send timeout", 0);
} else if (!strcmp(elem, "recv")) {
curmsg->M_type = MSG_TYPE_RECV;
/* Received messages descriptions */
if((cptr = xp_get_value("response"))) {
curmsg ->recv_response = get_long(cptr, "response code");
if (method_list) {
curmsg->recv_response_for_cseq_method_list = strdup(method_list);
}
if ((cptr = xp_get_value("response_txn"))) {
curmsg->response_txn = get_txn(cptr, "transaction response", false, false, false);
}
}
if ((cptr = xp_get_value("request"))) {
curmsg->recv_request = strdup(cptr);
if (xp_get_value("response_txn")) {
ERROR("response_txn can only be used for received responses.");
}
}
curmsg->optional = xp_get_optional("optional", "recv");
last_recv_optional = curmsg->optional;
curmsg->advance_state = xp_get_bool("advance_state", "recv", true);
if (!curmsg->advance_state && curmsg->optional == OPTIONAL_FALSE) {
ERROR("advance_state is allowed only for optional messages (index = %zu)", messages.size() - 1);
}
if ((cptr = xp_get_value("regexp_match"))) {
if (!strcmp(cptr, "true")) {
curmsg->regexp_match = 1;
}
}
curmsg->timeout = xp_get_long("timeout", "message timeout", 0);
/* record the route set */
/* TODO disallow optional and rrs to coexist? */
if ((cptr = xp_get_value("rrs"))) {
curmsg->bShouldRecordRoutes = get_bool(cptr, "record route set");
}
/* record the authentication credentials */
if ((cptr = xp_get_value("auth"))) {
bool temp = get_bool(cptr, "message authentication");
curmsg->bShouldAuthenticate = temp;
}
} else if(!strcmp(elem, "pause") || !strcmp(elem, "timewait")) {
checkOptionalRecv(elem, scenario_file_cursor);
curmsg->M_type = MSG_TYPE_PAUSE;
if (!strcmp(elem, "timewait")) {
curmsg->timewait = true;
found_timewait = true;
}
int var;
if ((var = xp_get_var("variable", "pause", -1)) != -1) {
curmsg->pause_variable = var;
} else {
CSample *distribution = parse_distribution(true);
bool sanity_check = xp_get_bool("sanity_check", "pause", true);
double pause_duration = distribution->cdfInv(0.99);
if (sanity_check && (pause_duration > INT_MAX)) {
char percentile[100];
char desc[100];
distribution->timeDescr(desc, sizeof(desc));
time_string(pause_duration, percentile, sizeof(percentile));
ERROR("The distribution %s has a 99th percentile of %s, which is larger than INT_MAX. You should chose different parameters.", desc, percentile);
}
curmsg->pause_distribution = distribution;
/* Update scenario duration with max duration */
duration += (int)pause_duration;
}
} else if(!strcmp(elem, "nop")) {
checkOptionalRecv(elem, scenario_file_cursor);
/* Does nothing at SIP level. This message type can be used to handle
* actions, increment counters, or for RTDs. */
curmsg->M_type = MSG_TYPE_NOP;
} else if(!strcmp(elem, "recvCmd")) {
curmsg->M_type = MSG_TYPE_RECVCMD;
curmsg->optional = xp_get_optional("optional", "recv");
last_recv_optional = curmsg->optional;
/* 3pcc extended mode */
if ((cptr = xp_get_value("src"))) {
curmsg->peer_src = strdup(cptr);
} else if (extendedTwinSippMode) {
ERROR("You must specify a 'src' for recvCmd when using extended 3pcc mode!");
}
} else if(!strcmp(elem, "sendCmd")) {
checkOptionalRecv(elem, scenario_file_cursor);
curmsg->M_type = MSG_TYPE_SENDCMD;