int tryLogin(int hSocket, sLogin** psLogin, _MODULE_DATA* _psSessionData, char* szLogin, char* szPassword)
{
int nRet = FAILURE;
unsigned char* bufReceive = NULL;
int nReceiveBufferSize = 0;
switch(_psSessionData->nAuthType)
{
case AUTH_USER:
writeError(ERR_DEBUG_MODULE, "[%s] Sending USER (clear-text) Authentication.", MODULE_NAME);
nRet = sendAuthUSER(hSocket, _psSessionData, szLogin, szPassword);
break;
case AUTH_PLAIN:
writeError(ERR_DEBUG_MODULE, "[%s] Sending PLAIN Authentication.", MODULE_NAME);
nRet = sendAuthPLAIN(hSocket, _psSessionData, szLogin, szPassword);
break;
case AUTH_LOGIN:
writeError(ERR_DEBUG_MODULE, "[%s] Sending LOGIN Authentication.", MODULE_NAME);
nRet = sendAuthLOGIN(hSocket, _psSessionData, szLogin, szPassword);
break;
case AUTH_NTLM:
writeError(ERR_DEBUG_MODULE, "[%s] Sending NTLM Authentication.", MODULE_NAME);
nRet = sendAuthNTLM(hSocket, _psSessionData, szLogin, szPassword);
break;
default:
break;
}
if (nRet == FAILURE)
{
writeError(ERR_ERROR, "[%s] Failed during sending of authentication data.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_UNKNOWN;
setPassResult(*psLogin, szPassword);
return MSTATE_EXITING;
}
writeError(ERR_DEBUG_MODULE, "[%s] Retrieving server response.", MODULE_NAME);
nReceiveBufferSize = 0;
if ((medusaReceiveRegex(hSocket, &bufReceive, &nReceiveBufferSize, "\\+OK.*\r\n|-ERR.*\r\n") == FAILURE) || (bufReceive == NULL))
{
writeError(ERR_ERROR, "[%s] Failed: Unexpected or no data received: %s", MODULE_NAME, bufReceive);
return FAILURE;
}
else if (bufReceive[0] == '+')
{
writeError(ERR_DEBUG_MODULE, "[%s] Login attempt successful.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_SUCCESS;
nRet = MSTATE_EXITING;
}
else if (strstr(bufReceive,"-ERR The specified authentication package is not supported.") != NULL)
{
writeError(ERR_ERROR, "[%s] Server response: The specified authentication package is not supported.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
else
{
if (_psSessionData->nMode == MODE_AS400)
{
/*
www.venera.com/downloads/Enumeration_of_AS400_users_via_pop3.pdf
Example: -ERR Logon attempt invalid CPF2204
*/
if (strstr(bufReceive, "CPF2204"))
{
writeError(ERR_ERROR, "[%s] User profile was not found.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
else if (strstr(bufReceive, "CPF22E2"))
{
writeError(ERR_DEBUG_MODULE, "[%s] Valid user, incorrect password.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_FAIL;
nRet = MSTATE_NEW;
}
else if (strstr(bufReceive, "CPF22E3"))
{
writeError(ERR_ERROR, "[%s] Valid user, but profile is disabled.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
else if (strstr(bufReceive, "CPF22E4"))
{
writeError(ERR_ERROR, "[%s] Valid user, but password for profile has expired.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
else if (strstr(bufReceive, "CPF22E5"))
{
writeError(ERR_ERROR, "[%s] Valid user, but no password associated with user profile.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
else
{
writeError(ERR_ERROR, "[%s] Unknown AS/400 error message: %s", MODULE_NAME, bufReceive);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
}
else
{
writeError(ERR_DEBUG_MODULE, "[%s] Login attempt failed.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_FAIL;
nRet = MSTATE_RUNNING;
}
}
FREE(bufReceive);
setPassResult((*psLogin), szPassword);
return(nRet);
}
int tryLogin(int hSocket, sLogin** psLogin, _MODULE_DATA* _psSessionData, char* szLogin, char* szPassword)
{
int nRet = FAILURE;
unsigned char* bufReceive = NULL;
int nReceiveBufferSize = 0;
switch(_psSessionData->nAuthType)
{
case AUTH_PLAIN:
writeError(ERR_DEBUG_MODULE, "[%s] Sending PLAIN Authentication.", MODULE_NAME);
nRet = sendAuthPLAIN(hSocket, szLogin, szPassword);
break;
case AUTH_LOGIN:
writeError(ERR_DEBUG_MODULE, "[%s] Sending LOGIN Authentication.", MODULE_NAME);
nRet = sendAuthLOGIN(hSocket, _psSessionData, szLogin, szPassword);
break;
case AUTH_NTLM:
writeError(ERR_DEBUG_MODULE, "[%s] Sending NTLM Authentication.", MODULE_NAME);
nRet = sendAuthNTLM(hSocket, _psSessionData, szLogin, szPassword);
break;
default:
break;
}
if (nRet == FAILURE)
{
writeError(ERR_ERROR, "[%s] Failed during sending of authentication data.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_UNKNOWN;
setPassResult(*psLogin, szPassword);
return MSTATE_EXITING;
}
writeError(ERR_DEBUG_MODULE, "[%s] Retrieving server response.", MODULE_NAME);
nReceiveBufferSize = 0;
if ((medusaReceiveRegex(hSocket, &bufReceive, &nReceiveBufferSize, "^[0-9]{3,3} .*\r\n") == FAILURE) || (bufReceive == NULL))
{
writeError(ERR_ERROR, "[%s] Unknown SMTP server response: %s", MODULE_NAME, bufReceive);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
if (strstr((char *)bufReceive, "235 ") != NULL)
{
writeError(ERR_DEBUG_MODULE, "[%s] Login attempt successful.", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_SUCCESS;
nRet = MSTATE_EXITING;
}
/* 435 Unable to authenticate at present: Authentication Failure */
else if (strstr((char *)bufReceive, "435 ") != NULL)
{
writeError(ERR_DEBUG_MODULE, "[%s] Login attempt failed (435).", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_FAIL;
nRet = MSTATE_RUNNING;
}
/* GroupWise - 501 Authentication failed! */
else if (strstr((char *)bufReceive, "501 ") != NULL)
{
writeError(ERR_DEBUG_MODULE, "[%s] Login attempt failed (501).", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_FAIL;
nRet = MSTATE_RUNNING;
}
else if (strstr((char *)bufReceive, "535 ") != NULL)
{
writeError(ERR_DEBUG_MODULE, "[%s] Login attempt failed (535).", MODULE_NAME);
(*psLogin)->iResult = LOGIN_RESULT_FAIL;
nRet = MSTATE_RUNNING;
}
else
{
writeError(ERR_ERROR, "[%s] Unknown SMTP server response: %s", MODULE_NAME, bufReceive);
(*psLogin)->iResult = LOGIN_RESULT_ERROR;
nRet = MSTATE_EXITING;
}
FREE(bufReceive);
setPassResult((*psLogin), szPassword);
return(nRet);
}
