/* ** 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* $Author: faust $ $Revision: 1.15 $ $Date: 2010/04/16 11:28:03 $ */ /* * Author : * Boris Mikhailenko * Maxim Mamontov * Andrey Rakhmanov - bugfixes. */ //--------------------------------------------------------------------------- #include #include #include #include #ifdef WIN32 #include #include #include #include #else #include #include #include #include #include #include #include #endif #include "common.h" #include "ia_auth_c.h" #define IA_NONE (0) #define IA_CONNECT (1) #define IA_DISCONNECT (2) #define IA_DEBUGPROTO 1 #define IA_ID "00100" //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- #ifndef WIN32 #include void * RunL(void * data) { IA_CLIENT_PROT * c = (IA_CLIENT_PROT *)data; static int a = 0; if (a == 0) { usleep(50000); a = 1; } while (c->GetNonstop()) { c->Run(); } return NULL; } //--------------------------------------------------------------------------- void Sleep(int ms) { usleep(ms * 1000); } //--------------------------------------------------------------------------- long GetTickCount() { struct timeval tv; gettimeofday(&tv, NULL); return tv.tv_sec*1000 + tv.tv_usec/1000; } #else //--------------------------------------------------------------------------- unsigned long WINAPI RunW(void * data) { IA_CLIENT_PROT * c = (IA_CLIENT_PROT *)data; while (c->GetNonstop()) c->Run(); return 0; } //--------------------------------------------------------------------------- #endif //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- IA_CLIENT_PROT::IA_CLIENT_PROT(const string & sn, unsigned short p, uint16_t localPort) : action(IA_NONE), phase(1), phaseTime(0), codeError(0), nonstop(false), isNetPrepared(false), proxyMode(false), serverName(sn), port(p), ip(0), localPort(localPort), firstConnect(true), reconnect(0), sockr(0), protNum(0), userTimeout(60), aliveTimeout(5), rnd(0), pStatusChangedCb(NULL), pStatChangedCb(NULL), pInfoCb(NULL), pErrorCb(NULL), pDirNameCb(NULL), statusChangedCbData(NULL), statChangedCbData(NULL), infoCbData(NULL), errorCbData(NULL), dirNameCbData(NULL), connSyn8(NULL), connSynAck8(NULL), connAck8(NULL), aliveSyn8(NULL), aliveAck8(NULL), disconnSyn8(NULL), disconnSynAck8(NULL), disconnAck8(NULL), info(NULL) { memset(&stat, 0, sizeof(stat)); #ifdef WIN32 WSAStartup(MAKEWORD(2, 0), &wsaData); #endif packetTypes["CONN_SYN"] = CONN_SYN_N; packetTypes["CONN_SYN_ACK"] = CONN_SYN_ACK_N; packetTypes["CONN_ACK"] = CONN_ACK_N; packetTypes["ALIVE_SYN"] = ALIVE_SYN_N; packetTypes["ALIVE_ACK"] = ALIVE_ACK_N; packetTypes["DISCONN_SYN"] = DISCONN_SYN_N; packetTypes["DISCONN_SYN_ACK"] = DISCONN_SYN_ACK_N; packetTypes["DISCONN_ACK"] = DISCONN_ACK_N; packetTypes["FIN"] = FIN_N; packetTypes["ERR"] = ERROR_N; packetTypes["INFO"] = INFO_N; packetTypes["INFO_7"] = INFO_7_N; packetTypes["INFO_8"] = INFO_8_N; unsigned char key[IA_PASSWD_LEN]; memset(key, 0, IA_PASSWD_LEN); strncpy((char *)key, "pr7Hhen", 8); Blowfish_Init(&ctxHdr, key, IA_PASSWD_LEN); memset(key, 0, IA_PASSWD_LEN); Blowfish_Init(&ctxPass, key, IA_PASSWD_LEN); for (size_t i = 0; i < DIR_NUM; ++i) { selectedDirs[i] = false; } servAddr.sin_family = AF_INET; servAddr.sin_port = htons(port); servAddr.sin_addr.s_addr = ip; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::PrepareNet() { struct hostent * phe; unsigned long ip; ip = inet_addr(serverName.c_str()); if (ip == INADDR_NONE) { phe = gethostbyname(serverName.c_str()); if (phe) { ip = *((unsigned long*)phe->h_addr_list[0]); } else { strError = string("Unknown host ") + "\'" + serverName + "\'"; codeError = IA_GETHOSTBYNAME_ERROR; if (pErrorCb != NULL) pErrorCb(strError, IA_GETHOSTBYNAME_ERROR, errorCbData); } } #ifndef WIN32 close(sockr); #else closesocket(sockr); #endif sockr = socket(AF_INET, SOCK_DGRAM, 0); struct sockaddr_in localAddrR; localAddrR.sin_family = AF_INET; if (localPort) localAddrR.sin_port = htons(localPort); else localAddrR.sin_port = htons(port); localAddrR.sin_addr.s_addr = inet_addr("0.0.0.0"); servAddr.sin_family = AF_INET; servAddr.sin_port = htons(port); servAddr.sin_addr.s_addr = ip; int res = bind(sockr, (struct sockaddr*)&localAddrR, sizeof(localAddrR)); if (res == -1) { strError = "bind error"; codeError = IA_BIND_ERROR; if (pErrorCb != NULL) pErrorCb(strError, IA_BIND_ERROR, errorCbData); return; } #ifdef WIN32 unsigned long arg = 1; res = ioctlsocket(sockr, FIONBIO, &arg); #else if (0 != fcntl(sockr, F_SETFL, O_NONBLOCK)) { strError = "fcntl error"; codeError = IA_FCNTL_ERROR; if (pErrorCb != NULL) pErrorCb(strError, IA_FCNTL_ERROR, errorCbData); } #endif } //--------------------------------------------------------------------------- IA_CLIENT_PROT::~IA_CLIENT_PROT() { #ifndef WIN32 close(sockr); #else closesocket(sockr); WSACleanup(); #endif } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::DeterminatePacketType(const char * buffer) { map::iterator pi; pi = packetTypes.find(buffer); if (pi == packetTypes.end()) { return -1; } else { return pi->second; } } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::FillHdr8(char * buffer, unsigned long) { strncpy(buffer, IA_ID, 6); buffer[IA_MAGIC_LEN] = 0; buffer[IA_MAGIC_LEN + 1] = IA_PROTO_VER; strncpy(buffer + sizeof(HDR_8), login.c_str(), IA_LOGIN_LEN); } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Send(char * buffer, int len) { if (!isNetPrepared) { PrepareNet(); isNetPrepared = true; } int db = sizeof(HDR_8); for (int i = 0; i < IA_LOGIN_LEN/8; i++) { Blowfish_Encrypt(&ctxHdr, (uint32_t*)(buffer + db + i*8), (uint32_t*)(buffer + db + i*8 + 4)); } db += IA_LOGIN_LEN; int encLen = (len - sizeof(HDR_8) - IA_LOGIN_LEN)/8; for (int i = 0; i < encLen; i++) { Blowfish_Encrypt(&ctxPass, (uint32_t*)(buffer + db), (uint32_t*)(buffer + db + 4)); db += 8; } return sendto(sockr, buffer, len, 0, (struct sockaddr*)&servAddr, sizeof(servAddr)); } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Recv(char * buffer, int len) { #ifdef WIN32 int fromLen; #else socklen_t fromLen; #endif struct sockaddr_in addr; fromLen = sizeof(addr); int res = recvfrom(sockr, buffer, len, 0, (struct sockaddr*)&addr, &fromLen); if (res == -1) return res; if (strcmp(buffer + 4 + sizeof(HDR_8), "ERR")) { for (int i = 0; i < len/8; i++) Blowfish_Decrypt(&ctxPass, (uint32_t*)(buffer + i*8), (uint32_t*)(buffer + i*8 + 4)); } return 0; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::NetSend(int n) { char buffer[2048]; int msgLen; memset(buffer, 0, 2048); switch (n) { case CONN_SYN_N: msgLen = Prepare_CONN_SYN_8(buffer); break; case CONN_ACK_N: msgLen = Prepare_CONN_ACK_8(buffer); break; case ALIVE_ACK_N: msgLen = Prepare_ALIVE_ACK_8(buffer); break; case DISCONN_SYN_N: msgLen = Prepare_DISCONN_SYN_8(buffer); break; case DISCONN_ACK_N: msgLen = Prepare_DISCONN_ACK_8(buffer); break; default: return -1; } FillHdr8(buffer, 0); Send(buffer, msgLen); return 0; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::NetRecv() { char buffer[2048]; if (Recv(buffer, sizeof(buffer)) < 0) return -1; char packetName[20]; strncpy(packetName, buffer + 12, sizeof(packetName)); packetName[sizeof(packetName) - 1] = 0; int pn = DeterminatePacketType(buffer + 12); int ret; switch (pn) { case CONN_SYN_ACK_N: ret = Process_CONN_SYN_ACK_8(buffer); break; case ALIVE_SYN_N: ret = Process_ALIVE_SYN_8(buffer); break; case DISCONN_SYN_ACK_N: ret = Process_DISCONN_SYN_ACK_8(buffer); break; case FIN_N: ret = Process_FIN_8(buffer); break; case INFO_8_N: ret = Process_INFO_8(buffer); break; case ERROR_N: ret = Process_ERROR(buffer); break; default: ret = -1; } return ret; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::Start() { nonstop = true; #ifdef WIN32 unsigned long pt; CreateThread(NULL, 16384, RunW, this, 0, &pt); #else pthread_create(&thread, NULL, RunL, this); #endif } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::Stop() { nonstop = false; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::Run() { NetRecv(); switch (phase) { case 1: if (action == IA_CONNECT) { action = IA_NONE; NetSend(CONN_SYN_N); phase = 2; phaseTime = GetTickCount(); } if (reconnect && !firstConnect) { action = IA_CONNECT; } break; case 2: if ((int)(GetTickCount() - phaseTime)/1000 > aliveTimeout) { phase = 1; phaseTime = GetTickCount(); if (pStatusChangedCb != NULL) pStatusChangedCb(0, statusChangedCbData); } if (action == IA_DISCONNECT) { action = IA_NONE; NetSend(DISCONN_SYN_N); phase = 4; phaseTime = GetTickCount(); } break; case 3: if ((int)(GetTickCount() - phaseTime)/1000 > userTimeout) { phase = 1; phaseTime = GetTickCount(); if (pStatusChangedCb != NULL) pStatusChangedCb(0, statusChangedCbData); firstConnect = false; } if (action == IA_DISCONNECT) { action = IA_NONE; NetSend(DISCONN_SYN_N); phase = 4; phaseTime = GetTickCount(); } break; case 4: if ((int)(GetTickCount() - phaseTime)/1000 > aliveTimeout) { phase=1; phaseTime = GetTickCount(); if (pStatusChangedCb != NULL) pStatusChangedCb(0, statusChangedCbData); } if (action == IA_CONNECT) { action = IA_NONE; NetSend(CONN_SYN_N); phase = 2; phaseTime = GetTickCount(); } break; case 5: if ((int)(GetTickCount() - phaseTime)/1000 > aliveTimeout) { phase = 1; phaseTime = GetTickCount(); if (pStatusChangedCb != NULL) pStatusChangedCb(0, statusChangedCbData); } if (action == IA_CONNECT) { action = IA_NONE; NetSend(CONN_SYN_N); phase = 2; phaseTime = GetTickCount(); } break; } Sleep(20); return; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::GetStat(LOADSTAT * ls) { memcpy(ls, &stat, sizeof(stat)); } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetServer(const string & sn, unsigned short p) { serverName = sn; port = p; PrepareNet(); } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetLogin(const string & l) { login = l; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetPassword(const string & p) { password = p; unsigned char keyL[IA_PASSWD_LEN]; memset(keyL, 0, IA_PASSWD_LEN); strncpy((char *)keyL, password.c_str(), IA_PASSWD_LEN); Blowfish_Init(&ctxPass, keyL, IA_PASSWD_LEN); } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetEnabledDirs(const bool * selectedDirs) { memcpy(IA_CLIENT_PROT::selectedDirs, selectedDirs, sizeof(bool) * DIR_NUM); } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Connect() { action = IA_CONNECT; return 0; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Disconnect() { firstConnect = true; action = IA_DISCONNECT; return 0; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::GetStrError(string * error) const { int ret = codeError; *error = strError; strError = ""; codeError = 0; return ret; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Process_CONN_SYN_ACK_8(const char * buffer) { vector dirNames; connSynAck8 = (CONN_SYN_ACK_8*)buffer; #ifdef ARCH_BE SwapBytes(connSynAck8->len); SwapBytes(connSynAck8->rnd); SwapBytes(connSynAck8->userTimeOut); SwapBytes(connSynAck8->aliveDelay); #endif rnd = connSynAck8->rnd; userTimeout = connSynAck8->userTimeOut; aliveTimeout = connSynAck8->aliveDelay; for (int i = 0; i < DIR_NUM; i++) { dirNames.push_back((const char*)connSynAck8->dirName[i]); } if (pDirNameCb != NULL) pDirNameCb(dirNames, dirNameCbData); NetSend(CONN_ACK_N); phase = 3; phaseTime = GetTickCount(); return CONN_SYN_ACK_N; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Process_ALIVE_SYN_8(const char * buffer) { aliveSyn8 = (ALIVE_SYN_8*)buffer; #ifdef ARCH_BE SwapBytes(aliveSyn8->len); SwapBytes(aliveSyn8->rnd); SwapBytes(aliveSyn8->cash); SwapBytes(aliveSyn8->status); for (int i = 0; i < DIR_NUM; ++i) { SwapBytes(aliveSyn8->mu[i]); SwapBytes(aliveSyn8->md[i]); SwapBytes(aliveSyn8->su[i]); SwapBytes(aliveSyn8->sd[i]); } #endif rnd = aliveSyn8->rnd; memcpy(&stat, (char*)aliveSyn8->mu, sizeof(stat)); if (pStatChangedCb != NULL) pStatChangedCb(stat, statChangedCbData); if (pStatusChangedCb != NULL) pStatusChangedCb(1, statusChangedCbData); NetSend(ALIVE_ACK_N); phaseTime = GetTickCount(); return ALIVE_SYN_N; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Process_DISCONN_SYN_ACK_8(const char * buffer) { disconnSynAck8 = (DISCONN_SYN_ACK_8*)buffer; #ifdef ARCH_BE SwapBytes(disconnSynAck8->len); SwapBytes(disconnSynAck8->rnd); #endif rnd = disconnSynAck8->rnd; NetSend(DISCONN_ACK_N); phase = 5; phaseTime = GetTickCount(); return DISCONN_SYN_ACK_N; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Process_FIN_8(const char *) { phase = 1; phaseTime = GetTickCount(); if (pStatusChangedCb != NULL) pStatusChangedCb(0, statusChangedCbData); return FIN_N; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Process_INFO_8(const char * buffer) { info = (INFO_8*)buffer; #ifdef ARCH_BE SwapBytes(info->len); SwapBytes(info->sendTime); #endif if (pInfoCb != NULL) pInfoCb((char*)info->text, info->infoType, info->showTime, info->sendTime, infoCbData); return INFO_8_N; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Process_ERROR(const char * buffer) { ERR_8 err; memcpy(&err, buffer, sizeof(err)); #ifdef ARCH_BE SwapBytes(err.len); #endif KOIToWin((const char*)err.text, &messageText); if (pErrorCb != NULL) pErrorCb(messageText, IA_SERVER_ERROR, errorCbData); phase = 1; phaseTime = GetTickCount(); codeError = IA_SERVER_ERROR; return ERROR_N; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Prepare_CONN_SYN_8(char * buffer) { connSyn8 = (CONN_SYN_8*)buffer; #ifdef ARCH_BE SwapBytes(connSyn8->len); #endif assert(sizeof(CONN_SYN_8) == Min8(sizeof(CONN_SYN_8)) && "CONN_SYN_8 is not aligned to 8 bytes"); connSyn8->len = sizeof(CONN_SYN_8); strncpy((char*)connSyn8->type, "CONN_SYN", IA_MAX_TYPE_LEN); strncpy((char*)connSyn8->login, login.c_str(), IA_LOGIN_LEN); connSyn8->dirs = 0; for (int i = 0; i < DIR_NUM; i++) { connSyn8->dirs |= (selectedDirs[i] << i); } return connSyn8->len; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Prepare_CONN_ACK_8(char * buffer) { connAck8 = (CONN_ACK_8*)buffer; #ifdef ARCH_BE SwapBytes(connAck8->len); SwapBytes(connAck8->rnd); #endif assert(sizeof(CONN_ACK_8) == Min8(sizeof(CONN_ACK_8)) && "CONN_ACK_8 is not aligned to 8 bytes"); connAck8->len = sizeof(CONN_ACK_8); strncpy((char*)connAck8->loginS, login.c_str(), IA_LOGIN_LEN); strncpy((char*)connAck8->type, "CONN_ACK", IA_MAX_TYPE_LEN); rnd++; connAck8->rnd = rnd; return connAck8->len; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Prepare_ALIVE_ACK_8(char * buffer) { aliveAck8 = (ALIVE_ACK_8*)buffer; #ifdef ARCH_BE SwapBytes(aliveAck8->len); SwapBytes(aliveAck8->rnd); #endif assert(Min8(sizeof(ALIVE_ACK_8)) == sizeof(ALIVE_ACK_8) && "ALIVE_ACK_8 is not aligned to 8 bytes"); aliveAck8 = (ALIVE_ACK_8*)buffer; aliveAck8->len = sizeof(ALIVE_ACK_8); strncpy((char*)aliveAck8->loginS, login.c_str(), IA_LOGIN_LEN); strncpy((char*)aliveAck8->type, "ALIVE_ACK", IA_MAX_TYPE_LEN); aliveAck8->rnd = ++rnd; return aliveAck8->len; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Prepare_DISCONN_SYN_8(char * buffer) { disconnSyn8 = (DISCONN_SYN_8*)buffer; #ifdef ARCH_BE SwapBytes(disconnSyn8->len); #endif assert(Min8(sizeof(DISCONN_SYN_8)) == sizeof(DISCONN_SYN_8) && "DISCONN_SYN_8 is not aligned to 8 bytes"); disconnSyn8->len = sizeof(DISCONN_SYN_8); strncpy((char*)disconnSyn8->loginS, login.c_str(), IA_LOGIN_LEN); strncpy((char*)disconnSyn8->type, "DISCONN_SYN", IA_MAX_TYPE_LEN); strncpy((char*)disconnSyn8->login, login.c_str(), IA_LOGIN_LEN); return disconnSyn8->len; } //--------------------------------------------------------------------------- int IA_CLIENT_PROT::Prepare_DISCONN_ACK_8(char * buffer) { disconnAck8 = (DISCONN_ACK_8*)buffer; #ifdef ARCH_BE SwapBytes(disconnAck8->len); SwapBytes(disconnAck8->rnd); #endif assert(Min8(sizeof(DISCONN_ACK_8)) == sizeof(DISCONN_ACK_8) && "DISCONN_ACK_8 is not aligned to 8 bytes"); disconnAck8->len = Min8(sizeof(DISCONN_ACK_8)); disconnAck8->rnd = rnd + 1; strncpy((char*)disconnAck8->loginS, login.c_str(), IA_LOGIN_LEN); strncpy((char*)disconnAck8->type, "DISCONN_ACK", IA_MAX_TYPE_LEN); return disconnAck8->len; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetStatusChangedCb(tpStatusChangedCb p, void * data) { pStatusChangedCb = p; statusChangedCbData = data; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetStatChangedCb(tpStatChangedCb p, void * data) { pStatChangedCb = p; statChangedCbData = data; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetInfoCb(tpCallBackInfoFn p, void * data) { pInfoCb = p; infoCbData = data; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetDirNameCb(tpCallBackDirNameFn p, void * data) { pDirNameCb = p; dirNameCbData = data; } //--------------------------------------------------------------------------- void IA_CLIENT_PROT::SetErrorCb(tpCallBackErrorFn p, void * data) { pErrorCb = p; errorCbData = data; } //---------------------------------------------------------------------------