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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 : David Verbeiren from Intel Corporation - July 2007
* Xavier Simonart from Intel Corporation - July 2007
* Philippe Lecluse from Intel Corporation - July 2007
* Patrice Buriez from Intel Corporation - December 2008
*/
#include "sipp.hpp"
#include "user.hpp"
#include "csocket.hpp"
#include "sudp.hpp"
#ifdef HAVE_GSL
#include <gsl/gsl_rng.h>
#endif
static user_list S_user_pool[MAX_USER_POOL];
CUser::CUser(const char* a_Fields, int a_PoolId) :
m_PoolId(-1), m_PoolIndex(0),
m_pSocket(NULL), m_DoKeepAlive(0), m_LastKeepAliveTime(0)
{
// Read user constant fields
std::string line(a_Fields);
int fieldNo = 0;
int start = 0;
do {
int pos = line.find(';', start);
string* val = new string(line.substr(start, pos-start));
if (val->length()) {
//DBGINFO_USR(("User %lx field %d = %s", this, fieldNo, val->c_str()));
m_FieldVect.push_back(val);
}
start = pos;
if (pos != string::npos)
start++;
fieldNo++;
}
while (start != string::npos);
// Initialize user variables
for(int var=0; var<SCEN_VARIABLE_SIZE; var++)
m_VariableTable[var] = NULL;
initVariables();
// Move into initial pool
moveToPool(a_PoolId);
}
CUser::~CUser()
{
if (m_pSocket) {
delete m_pSocket;
}
for(int var=0; var<SCEN_VARIABLE_SIZE; var++) {
if (m_VariableTable[var])
delete m_VariableTable[var];
}
if (m_FieldVect.size()) {
m_FieldVect.clear();
}
}
void delete_users()
{
bool bShouldFirstDisassociateSocket = (transport != T_UDP);
for (int p=0; p<MAX_USER_POOL; p++) {
user_list& rPool = S_user_pool[p];
for (user_list::iterator it = rPool.begin(); it != rPool.end(); ++it) {
if (bShouldFirstDisassociateSocket) {
(*it)->disassociateSocket();
}
delete *it;
}
rPool.clear();
}
}
void CUser::initVariables()
{
// Initialize necessary User Variable based on loaded scenarios
for(int var=0; var<SCEN_VARIABLE_SIZE; var++) {
bool isUsed = false;
for (int scen=0; scen < SCEN_MAX_SCENARIO; scen++) {
if (allscenarios[scen].usedUserVariable[var] > 0) {
//DBGINFO_USR(("Scenario '%s' uses User Variable %d", allscenarios[scen].scenario_name, var));
isUsed = true;
break;
}
}
if (isUsed) {
if (m_VariableTable[var] == NULL) {
DBGINFO_USR(("Allocating user variable %d", var));
m_VariableTable[var] = new CCallVariable();
if (m_VariableTable[var] == NULL) {
ERROR ("User variable allocation failed");
}
}
}
else if (m_VariableTable[var]) {
DBGINFO_USR(("Deleting user variable %d", var));
delete m_VariableTable[var];
m_VariableTable[var] = NULL;
}
}
}
bool CUser::getField(const char* fieldName, char*& dest)
{
int fieldNo = atoi(fieldName+5 /*strlen("field")*/);
if ( (fieldNo > m_FieldVect.size()) || (m_FieldVect[fieldNo] == NULL) ) {
WARNING_P2("User Field %d not found for user %lx", fieldNo, this);
return false;
}
int len = m_FieldVect[fieldNo]->length();
strncpy(dest, m_FieldVect[fieldNo]->c_str(), len);
dest += len;
return true;
}
bool CUser::getVariableValue(int varId, char*& dest)
{
DBGINFO_USR(("CUser::getVariableValue(%d)", varId));
if (varId < SCEN_VARIABLE_SIZE) {
if (m_VariableTable[varId] != NULL) {
if(m_VariableTable[varId]->isSet()) {
dest += sprintf(dest, "%s",
m_VariableTable[varId]->getMatchingValue());
DBGINFO_USR(("USER VARIABLE %d --%s--", varId, m_VariableTable[varId]->getMatchingValue()));
return true;
}
}
}
return false;
}
bool CUser::moveToPool(int a_PoolId)
{
DBGINFO_USR(("Moving user [0x%lx] from %d:%d to pool %d", this, m_PoolId, m_PoolIndex, a_PoolId));
if (m_PoolId != a_PoolId) {
user_list* pPool = &S_user_pool[a_PoolId]; // Note poolId has been verified at scenario parse time
// Remove from current pool
if (m_PoolId != -1) { // Just move the last user from the pool into our current index
user_list* pCurPool = &S_user_pool[m_PoolId];
CUser* pLast = pCurPool->back();
DBGINFO_USR2((" moving last user [0x%lx] from %d:%d to %d:%d", pLast, m_PoolId,
pLast->m_PoolIndex, m_PoolId, m_PoolIndex));
pCurPool->at(m_PoolIndex) = pLast;
pLast->m_PoolIndex = m_PoolIndex;
pCurPool->pop_back();
}
// Put in new pool
pPool->push_back(this);
m_PoolIndex = pPool->size() - 1;
m_PoolId = a_PoolId;
DBGINFO_USR2((" user [0x%lx] now at %d:%d", this, m_PoolId, m_PoolIndex));
}
return true;
}
void CUser::associateSocket(CSocket* a_pSocket)
{
if (a_pSocket) {
m_pSocket = a_pSocket;
}
}
void CUser::dumpInfo()
{
#define MAX_USER_DUMP_SIZE 2000 // Should be big enough, but detect corruption below
char t_Buffer[MAX_USER_DUMP_SIZE+1];
char *ptr = t_Buffer;
ptr += sprintf(ptr, "-USR- %d ", m_PoolId);
for (int i=0; i< m_FieldVect.size(); i++) {
ptr += sprintf(ptr, "{%d:%s}", i, m_FieldVect[i]->c_str());
}
if (m_pSocket) {
ptr += sprintf(ptr, " [%s]", GetSockaddrStorageString(m_pSocket->GetMainIp()));
}
if (ptr-t_Buffer>MAX_USER_DUMP_SIZE) {
ERROR("CUser::DumpInfo() corruption detected");
}
DBGINFO_USR((t_Buffer));
}
int CUser::getPort(bool bClient)
{
if (m_pSocket) {
return m_pSocket->GetPort(bClient);
}
return 0;
}
char *CUser::getFullIp()
{
if (m_pSocket) {
return GetSockaddrStorageString(m_pSocket->GetMainIp());
}
return NULL;
}
bool CUser::FindUser(char *a_User)
{
int fieldNo = 0;
if ( (fieldNo > m_FieldVect.size()) || (m_FieldVect[fieldNo] == NULL) ) {
WARNING_P1("User Field %d not found", fieldNo);
return false;
}
DBGINFO_USR2(("pool %d: %s", a_PoolId, m_FieldVect[fieldNo]->c_str()));
if (strcmp(m_FieldVect[fieldNo]->c_str(), a_User) == 0) {
return true;
}
return false;
}
#ifdef HAVE_GSL
static gsl_rng *s_UserRng = NULL;
#endif
void init_user_rng()
{
#ifdef HAVE_GSL
if (s_UserRng)
return;
init_gsl_rng();
s_UserRng = gsl_rng_alloc(gsl_rng_default);
if (!s_UserRng) {
ERROR("Could not initialize GSL random number generator.\n");
}
#endif
}
void seed_user_rand(unsigned long a_Seed)
{
init_user_rng();
#ifdef HAVE_GSL
DBGINFO_USR(("s_UserRng(0x%lx) seed=%ld", s_UserRng, a_Seed));
gsl_rng_set(s_UserRng, a_Seed);
#endif
}
CUser* pick_user(int a_PoolId, UInt8 *a_User)
{
user_list* pPool = NULL;
user_list::iterator it;
char *ptr = NULL;
if (a_PoolId < MAX_USER_POOL)
pPool = &S_user_pool[a_PoolId];
if (pPool == NULL) {
ERROR_P1("pick_user() - Invalid pool id: %d", a_PoolId);
return NULL;
}
CUser* pUser = NULL;
int sz = pPool->size();
if (sz > 0) {
for (it = pPool->begin(); it != pPool->end(); ++ it) {
int fieldNo = 0;
if ((*it)->FindUser((char *)a_User) == true) {
pUser = *it;
DBGINFO_USR2(("pick_user() from pool 0x%lx", a_PoolId, pUser));
}
}
} else {
WARNING_P1("User pool id[%d] is empty -> Quitting!", a_PoolId);
int i, t_Res, t_Temp = 0;
int t_Array[MAX_USER_POOL];
t_Res = get_user_pool_info(t_Array, MAX_USER_POOL);
printf("Users: ");
for (i=0; i<t_Res; i++) {
WARNING_P2("P%d:%d ",i,t_Array[i]);
t_Temp += t_Array[i];
}
WARNING_P1("T=%d\n", t_Temp);
quitting += 1;
}
return pUser;
}
CUser* pick_user(int a_PoolId)
{
user_list* pPool = NULL;
if (a_PoolId < MAX_USER_POOL)
pPool = &S_user_pool[a_PoolId];
if (pPool == NULL) {
ERROR_P1("pick_user() - Invalid pool id: %d", a_PoolId);
return NULL;
}
CUser* pUser = NULL;
int sz = pPool->size();
if (sz > 0) {
int rnd = gsl_rng_uniform_int(s_UserRng, sz);
pUser = pPool->at(rnd);
DBGINFO_USR2(("pick_user() from pool %d (%d on sz=%d): 0x%lx", a_PoolId, rnd, sz, pUser));
if (sz == 0) {
WARNING_P1("User pool id[%d] is empty -> Quitting!", a_PoolId);
// Add info about in which pools are the users
int t_Res, i, t_Temp = 0;
int t_Array[MAX_USER_POOL];
t_Res = get_user_pool_info(t_Array, MAX_USER_POOL);
printf("Users: ");
for (i=0; i<t_Res; i++) {
WARNING_P2("P%d:%d ",i,t_Array[i]);
t_Temp += t_Array[i];
}
WARNING_P1("T=%d\n", t_Temp)
quitting += 1;
}
}
#if 0
// Don't want this anymore... (create users on demand)
if (pUser == NULL) {
// FOR NOW, we just create users on demand whenever the pool is empty
static unsigned int counter = 0;
char data[] = "subs000000;field0Val;field1Val;field2Val";
sprintf(data+4, "%06lu", counter++);
data[10] = ';';
pUser = new CUser(data, poolId);
}
#endif
return pUser;
}
void add_user(char *a_String)
{
// Extract first field => initial pool id
int poolId = atoi(a_String);
int port = 0;
std::string line(a_String);
int fieldNo = 0;
int pos = line.find("PORT=", 0);
if (pos != string::npos) {
port = atoi(a_String+pos+5);
}
const char empty[] = "";
const char* ptr = strchr(a_String, ';');
if (ptr == NULL)
ptr = empty;
CUser* pUser = new CUser(ptr, poolId);
if (pUser == NULL)
ERROR("Failed to create new user");
#if 1
bool found = false;
CSocket* t_pSocket = NULL;
if (transport == T_UDP) {
t_pSocket = new CSipUdpSocket(g_AsyncPoll, local_ip_is_ipv6);
if (!t_pSocket) {
ERROR_NO("Failed to allocate CSipUdpSocket");
}
t_pSocket->SetMainIp(&sock_start_udp);
if (port == 0) {
for (int j=0;j<2000;j++) {
if (!t_pSocket->Bind(start_udp_port)) {
found = true;
break;
}
start_udp_port++;
if (start_udp_port > 52000) // Temp limit
ERROR_NO("UDP port over 52000 !");
}
} else {
WARNING_P1("Using port %d", port);
if (port > 52000) {// Temp limit
ERROR_NO("UDP port over 52000 !");
} else if (!t_pSocket->Bind(port)) {
found = true;
WARNING_P1("port %d bound", port);
}
}
} else {
// All users share the dual server/client TCP connection to the SUT
t_pSocket = g_SutSocket;
found = true;
}
if (found) {
pUser->associateSocket(t_pSocket);
pUser->dumpInfo();
}
else {
ERROR_P1("Unable to associate UDP port arround %d", start_udp_port);
}
#endif
}
void load_users(const char* fname)
{
ifstream *inFile = new ifstream(fname);
if (!inFile->good()) {
ERROR_P1("Unable to open file %s", fname);
return ;
}
char line[MAX_CHAR_BUFFER_SIZE];
while (!inFile->eof()) {
line[0] = '\0';
inFile->getline(line, MAX_CHAR_BUFFER_SIZE);
if (*line && line[0] != '#') {
add_user(line);
}
}
delete inFile;
}
int get_user_pool_info(int *a_Array, int a_Size)
{
int i;
for (i=0; i<a_Size && i<MAX_USER_POOL; i++) {
*a_Array++ = S_user_pool[i].size();
}
return i;
}
unsigned int get_total_users()
{
unsigned int i;
unsigned int t_Number = 0;
for (i=0; i<MAX_USER_POOL; i++) {
t_Number += S_user_pool[i].size();
}
return t_Number;
}
void init_user_variables()
{
for (int p=0; p<MAX_USER_POOL; p++) {
user_list& rPool = S_user_pool[p];
for (user_list::iterator it = rPool.begin(); it != rPool.end(); ++ it) {
(*it)->initVariables();
}
}
}
///////////////////////////////////////////////////////////////////////////////
void try_users_keep_alive(unsigned long curTime, unsigned short period,
SockAddrStorage *addrDATA)
{
unsigned long trigTime = curTime - period;
const char *msgDATA = "\r\n\r\n";
int msgLen = strlen(msgDATA);
bool unused = 0;
socklen_t addrLen = SOCK_ADDR_SIZE(addrDATA);
for (int p=0; p<MAX_USER_POOL; p++) {
user_list& rPool = S_user_pool[p];
for (user_list::iterator it = rPool.begin(); it != rPool.end(); ++ it) {
CUser *u = *it;
CSocket *tsock;
if (u->getKeepAlive() && u->getLastKeepAliveTime() < trigTime
&& (tsock=u->getSocket())!=NULL ) {
u->setLastKeepAliveTime(curTime);
tsock->SendTo( (unsigned char*)msgDATA, msgLen, addrDATA, addrLen, unused);
}
}
}
}
///////////////////////////////////////////////////////////////////////////
#ifdef MULTI_IP_SUPPORT
void load_users_ip(const char* fname, const char *ip_file)
{
const char empty[] = "";
char t_IpStrings[INET6_ADDRSTRLEN];
char line[MAX_CHAR_BUFFER_SIZE];
int t_Port;
SockAddrStorage t_AddrInfo;
ifstream *ipFile = new ifstream(ip_file);
if (!ipFile->good()) {
ERROR_P1("Unable to open file %s (IP)", fname);
return ;
}
while (!ipFile->eof()) {
line[0] = '\0';
ipFile->getline(line, MAX_CHAR_BUFFER_SIZE);
if (*line && line[0] != '#') {
char *t_Ptr;
int t_ItItem = -1;
unsigned int t_InrementTo = 0;
int t_Current = 0;
unsigned int t_Values[5];
DBGINFO(("Processing: %s", line));
AddIpScheme(line);
}
}
delete ipFile;
ifstream *inFile = new ifstream(fname);
if (!inFile->good()) {
ERROR_P1("Unable to open file %s (users)", fname);
return ;
}
int local_udp_port;
while (!inFile->eof()) {
line[0] = '\0';
inFile->getline(line, MAX_CHAR_BUFFER_SIZE);
if (*line && line[0] != '#') {
int poolId = atoi(line);
char* ptr = strchr(line, ';');
if (!ptr)
ptr = (char*)empty;
if (!BuildIpSockAddrFromIpScheme(&t_AddrInfo)) {
CUser* pUser = new CUser(ptr, poolId);
if (pUser == NULL)
ERROR("Failed to create new user");
CSipUdpSocket *t_SingleUdp = new CSipUdpSocket(g_AsyncPoll, local_ip_is_ipv6);
if (!t_SingleUdp) {
ERROR_NO("Failed to allocate CSipUdpSocket");
}
local_udp_port = start_udp_port+GetIpSchemeLoopCount();
bool found = false;
t_SingleUdp->SetMainIp(&t_AddrInfo);
for (int j=0;j<2000;j++) {
if (!t_SingleUdp->Bind(local_udp_port)) {
found = true;
break;
}
local_udp_port++;
if (local_udp_port > 52000) // Temp limit
ERROR_NO("UDP port over 52000 !");
}
if (found) {
pUser->associateSocket(t_SingleUdp);
pUser->dumpInfo();
}
else {
ERROR_P2("Unable to associate UDP port arround %s port %d", GetSockaddrStorageString(&t_AddrInfo), local_udp_port);
}
} else {
ERROR_NO("BuildIpSockAddrFromIpScheme failed !");
}
}
}
ClearIpScheme();
delete inFile;
}
#endif |
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