/*
* Function: IMAP_ParseArgs(char *)
*
* Purpose: Process the preprocessor arguments from the rules file and
* initialize the preprocessor's data struct. This function doesn't
* have to exist if it makes sense to parse the args in the init
* function.
*
* Arguments: args => argument list
*
* Returns: void function
*
*/
void IMAP_ParseArgs(IMAPConfig *config, char *args)
{
int ret = 0;
char *arg;
char errStr[ERRSTRLEN];
int errStrLen = ERRSTRLEN;
if ((config == NULL) || (args == NULL))
return;
config->ports[IMAP_DEFAULT_SERVER_PORT / 8] |= 1 << (IMAP_DEFAULT_SERVER_PORT % 8);
config->max_mime_mem = DEFAULT_IMAP_MEMCAP;
config->memcap = DEFAULT_IMAP_MEMCAP;
config->b64_depth = DEFAULT_DEPTH;
config->qp_depth = DEFAULT_DEPTH;
config->uu_depth = DEFAULT_DEPTH;
config->bitenc_depth = DEFAULT_DEPTH;
config->max_depth = MIN_DEPTH;
config->log_config.log_filename = 0;
config->log_config.log_mailfrom = 0;
config->log_config.log_rcptto = 0;
config->log_config.log_email_hdrs = 0;
config->log_config.email_hdrs_log_depth = 0;
*errStr = '\0';
arg = strtok(args, CONF_SEPARATORS);
while ( arg != NULL )
{
unsigned long value = 0;
if ( !strcasecmp(CONF_PORTS, arg) )
{
ret = ProcessPorts(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_IMAP_MEMCAP, arg) )
{
ret = _dpd.checkValueInRange(strtok(NULL, CONF_SEPARATORS), CONF_IMAP_MEMCAP,
MIN_IMAP_MEMCAP, MAX_IMAP_MEMCAP, &value);
config->memcap = (uint32_t)value;
}
else if ( !strcasecmp(CONF_MAX_MIME_MEM, arg) )
{
ret = _dpd.checkValueInRange(strtok(NULL, CONF_SEPARATORS), CONF_MAX_MIME_MEM,
MIN_MIME_MEM, MAX_MIME_MEM, &value);
config->max_mime_mem = (int)value;
}
else if ( !strcasecmp(CONF_B64_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_B64_DECODE, DECODE_B64);
}
else if ( !strcasecmp(CONF_QP_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_QP_DECODE, DECODE_QP);
}
else if ( !strcasecmp(CONF_UU_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_UU_DECODE, DECODE_UU);
}
else if ( !strcasecmp(CONF_BITENC_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_BITENC_DECODE, DECODE_BITENC);
}
else if ( !strcasecmp(CONF_DISABLED, arg) )
{
config->disabled = 1;
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Unknown IMAP configuration option %s\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if (ret == -1)
{
/*
** Fatal Error, log error and exit.
*/
if (*errStr)
{
DynamicPreprocessorFatalMessage("%s(%d) => %s\n",
*(_dpd.config_file), *(_dpd.config_line), errStr);
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Undefined Error.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
}
/* Get next token */
arg = strtok(NULL, CONF_SEPARATORS);
}
}
/*
* Function: IMAP_ParseArgs(char *)
*
* Purpose: Process the preprocessor arguments from the rules file and
* initialize the preprocessor's data struct. This function doesn't
* have to exist if it makes sense to parse the args in the init
* function.
*
* Arguments: args => argument list
*
* Returns: void function
*
*/
void IMAP_ParseArgs(IMAPConfig *config, char *args)
{
int ret = 0;
char *arg;
char errStr[ERRSTRLEN];
int errStrLen = ERRSTRLEN;
if ((config == NULL) || (args == NULL))
return;
enablePort( config->ports, IMAP_DEFAULT_SERVER_PORT );
config->memcap = DEFAULT_IMAP_MEMCAP;
_dpd.fileAPI->set_mime_decode_config_defauts(&(config->decode_conf));
_dpd.fileAPI->set_mime_log_config_defauts(&(config->log_config));
*errStr = '\0';
arg = strtok(args, CONF_SEPARATORS);
while ( arg != NULL )
{
unsigned long value = 0;
if ( !strcasecmp(CONF_PORTS, arg) )
{
ret = ProcessPorts(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_IMAP_MEMCAP, arg) )
{
ret = _dpd.checkValueInRange(strtok(NULL, CONF_SEPARATORS), CONF_IMAP_MEMCAP,
MIN_IMAP_MEMCAP, MAX_IMAP_MEMCAP, &value);
config->memcap = (uint32_t)value;
}
else if ( !strcasecmp(CONF_MAX_MIME_MEM, arg) )
{
ret = _dpd.checkValueInRange(strtok(NULL, CONF_SEPARATORS), CONF_MAX_MIME_MEM,
MIN_MIME_MEM, MAX_MIME_MEM, &value);
config->decode_conf.max_mime_mem = (int)value;
}
else if(!_dpd.fileAPI->parse_mime_decode_args(&(config->decode_conf), arg, "IMAP"))
{
ret = 0;
}
else if ( !strcasecmp(CONF_DISABLED, arg) )
{
config->disabled = 1;
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Unknown IMAP configuration option %s\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if (ret == -1)
{
/*
** Fatal Error, log error and exit.
*/
if (*errStr)
{
DynamicPreprocessorFatalMessage("%s(%d) => %s\n",
*(_dpd.config_file), *(_dpd.config_line), errStr);
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Undefined Error.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
}
/* Get next token */
arg = strtok(NULL, CONF_SEPARATORS);
}
}
/*
* Function: SMTP_ParseArgs(char *)
*
* Purpose: Process the preprocessor arguments from the rules file and
* initialize the preprocessor's data struct. This function doesn't
* have to exist if it makes sense to parse the args in the init
* function.
*
* Arguments: args => argument list
*
* Returns: void function
*
*/
void SMTP_ParseArgs(char *args)
{
int ret = 0;
char *arg;
char *value;
char errStr[ERRSTRLEN];
int errStrLen = ERRSTRLEN;
if (args == NULL)
{
return;
}
/* Set config to defaults */
memset(&_smtp_config, 0, sizeof(SMTPConfig));
_smtp_config.ports[SMTP_DEFAULT_SERVER_PORT / 8] |= 1 << (SMTP_DEFAULT_SERVER_PORT % 8);
_smtp_config.ports[XLINK2STATE_DEFAULT_PORT / 8] |= 1 << (XLINK2STATE_DEFAULT_PORT % 8);
_smtp_config.ports[SMTP_DEFAULT_SUBMISSION_PORT / 8] |= 1 << (SMTP_DEFAULT_SUBMISSION_PORT % 8);
_smtp_config.inspection_type = SMTP_STATELESS;
_smtp_config.max_command_line_len = DEFAULT_MAX_COMMAND_LINE_LEN;
_smtp_config.max_header_line_len = DEFAULT_MAX_HEADER_LINE_LEN;
_smtp_config.max_response_line_len = DEFAULT_MAX_RESPONSE_LINE_LEN;
_smtp_config.alert_xlink2state = 1;
_smtp_config.print_cmds = 1;
_smtp_cmd_config = (SMTPCmdConfig *)calloc(CMD_LAST, sizeof(SMTPCmdConfig));
if (_smtp_cmd_config == NULL)
{
DynamicPreprocessorFatalMessage("%s(%d) => Failed to allocate memory for SMTP "
"command structure\n",
*(_dpd.config_file), *(_dpd.config_line));
}
*errStr = '\0';
arg = strtok(args, CONF_SEPARATORS);
while ( arg != NULL )
{
if ( !strcasecmp(CONF_PORTS, arg) )
{
ret = ProcessPorts(errStr, errStrLen);
}
else if ( !strcasecmp(CONF_INSPECTION_TYPE, arg) )
{
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
if ( !strcasecmp(CONF_STATEFUL, value) )
{
_smtp_config.inspection_type = SMTP_STATEFUL;
}
else
{
_smtp_config.inspection_type = SMTP_STATELESS;
}
}
else if ( !strcasecmp(CONF_NORMALIZE, arg) )
{
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
if ( !strcasecmp(CONF_NONE, value) )
{
_smtp_config.normalize = NORMALIZE_NONE;
}
else if ( !strcasecmp(CONF_ALL, value) )
{
_smtp_config.normalize = NORMALIZE_ALL;
}
else
{
_smtp_config.normalize = NORMALIZE_CMDS;
}
}
else if ( !strcasecmp(CONF_IGNORE_DATA, arg) )
{
_smtp_config.ignore_data = 1;
}
else if ( !strcasecmp(CONF_IGNORE_TLS_DATA, arg) )
{
_smtp_config.ignore_tls_data = 1;
}
else if ( !strcasecmp(CONF_MAX_COMMAND_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
_smtp_config.max_command_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_MAX_HEADER_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
_smtp_config.max_header_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_MAX_RESPONSE_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
_smtp_config.max_response_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_NO_ALERTS, arg) )
{
_smtp_config.no_alerts = 1;
}
else if ( !strcasecmp(CONF_ALERT_UNKNOWN_CMDS, arg) )
{
_smtp_config.alert_unknown_cmds = 1;
}
else if ( !strcasecmp(CONF_INVALID_CMDS, arg) )
{
/* Parse disallowed commands */
ret = ProcessCmds(errStr, errStrLen, ACTION_ALERT);
}
else if ( !strcasecmp(CONF_VALID_CMDS, arg) )
{
/* Parse allowed commands */
ret = ProcessCmds(errStr, errStrLen, ACTION_NO_ALERT);
}
else if ( !strcasecmp(CONF_NORMALIZE_CMDS, arg) )
{
/* Parse normalized commands */
ret = ProcessCmds(errStr, errStrLen, ACTION_NORMALIZE);
}
else if ( !strcasecmp(CONF_ALT_MAX_COMMAND_LINE_LEN, arg) )
{
/* Parse max line len for commands */
ret = ProcessAltMaxCmdLen(errStr, errStrLen);
}
else if ( !strcasecmp(CONF_XLINK2STATE, arg) )
{
ret = ProcessXlink2State(errStr, errStrLen);
}
else if ( !strcasecmp(CONF_PRINT_CMDS, arg) )
{
_smtp_config.print_cmds = 1;
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Unknown SMTP configuration option %s\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if (ret == -1)
{
/*
** Fatal Error, log error and exit.
*/
if (*errStr)
{
DynamicPreprocessorFatalMessage("%s(%d) => %s\n",
*(_dpd.config_file), *(_dpd.config_line), errStr);
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Undefined Error.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
}
/* Get next token */
arg = strtok(NULL, CONF_SEPARATORS);
}
PrintConfig();
}
/*
* Function: IMAP_ParseArgs(char *)
*
* Purpose: Process the preprocessor arguments from the rules file and
* initialize the preprocessor's data struct. This function doesn't
* have to exist if it makes sense to parse the args in the init
* function.
*
* Arguments: args => argument list
*
* Returns: void function
*
*/
void IMAP_ParseArgs(IMAPConfig *config, char *args)
{
int ret = 0;
char *arg;
char errStr[ERRSTRLEN];
int errStrLen = ERRSTRLEN;
if ((config == NULL) || (args == NULL))
return;
config->ports[IMAP_DEFAULT_SERVER_PORT / 8] |= 1 << (IMAP_DEFAULT_SERVER_PORT % 8);
config->memcap = DEFAULT_IMAP_MEMCAP;
config->b64_depth = DEFAULT_DEPTH;
config->qp_depth = DEFAULT_DEPTH;
config->uu_depth = DEFAULT_DEPTH;
config->bitenc_depth = DEFAULT_DEPTH;
config->max_depth = MIN_DEPTH;
*errStr = '\0';
arg = strtok(args, CONF_SEPARATORS);
while ( arg != NULL )
{
if ( !strcasecmp(CONF_PORTS, arg) )
{
ret = ProcessPorts(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_IMAP_MEMCAP, arg) )
{
ret = ProcessImapMemcap(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_B64_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_B64_DECODE, DECODE_B64);
}
else if ( !strcasecmp(CONF_QP_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_QP_DECODE, DECODE_QP);
}
else if ( !strcasecmp(CONF_UU_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_UU_DECODE, DECODE_UU);
}
else if ( !strcasecmp(CONF_BITENC_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_BITENC_DECODE, DECODE_BITENC);
}
else if ( !strcasecmp(CONF_DISABLED, arg) )
{
config->disabled = 1;
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Unknown IMAP configuration option %s\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if (ret == -1)
{
/*
** Fatal Error, log error and exit.
*/
if (*errStr)
{
DynamicPreprocessorFatalMessage("%s(%d) => %s\n",
*(_dpd.config_file), *(_dpd.config_line), errStr);
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Undefined Error.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
}
/* Get next token */
arg = strtok(NULL, CONF_SEPARATORS);
}
}
/*
* Function: SMTP_ParseArgs(char *)
*
* Purpose: Process the preprocessor arguments from the rules file and
* initialize the preprocessor's data struct. This function doesn't
* have to exist if it makes sense to parse the args in the init
* function.
*
* Arguments: args => argument list
*
* Returns: void function
*
*/
void SMTP_ParseArgs(SMTPConfig *config, char *args)
{
int ret = 0;
char *arg;
char *value;
char errStr[ERRSTRLEN];
int errStrLen = ERRSTRLEN;
int b64_option = 0;
int deprecated_options = 0;
if ((config == NULL) || (args == NULL))
return;
config->ports[SMTP_DEFAULT_SERVER_PORT / 8] |= 1 << (SMTP_DEFAULT_SERVER_PORT % 8);
config->ports[XLINK2STATE_DEFAULT_PORT / 8] |= 1 << (XLINK2STATE_DEFAULT_PORT % 8);
config->ports[SMTP_DEFAULT_SUBMISSION_PORT / 8] |= 1 << (SMTP_DEFAULT_SUBMISSION_PORT % 8);
config->inspection_type = SMTP_STATELESS;
config->max_command_line_len = DEFAULT_MAX_COMMAND_LINE_LEN;
config->max_header_line_len = DEFAULT_MAX_HEADER_LINE_LEN;
config->max_response_line_len = DEFAULT_MAX_RESPONSE_LINE_LEN;
config->max_mime_depth = DEFAULT_MAX_MIME_DEPTH;
config->max_mime_mem = DEFAULT_MAX_MIME_MEM;
config->memcap = DEFAULT_SMTP_MEMCAP;
config->alert_xlink2state = 1;
config->print_cmds = 1;
config->enable_mime_decoding = 0;
config->b64_depth = DEFAULT_MAX_MIME_DEPTH;
config->qp_depth = DEFAULT_MAX_MIME_DEPTH;
config->uu_depth = DEFAULT_MAX_MIME_DEPTH;
config->bitenc_depth = DEFAULT_MAX_MIME_DEPTH;
config->max_depth = MIN_DEPTH;
config->log_filename = 0;
config->log_mailfrom = 0;
config->log_rcptto = 0;
config->log_email_hdrs = 0;
config->email_hdrs_log_depth = DEFAULT_LOG_DEPTH;
config->cmd_config = (SMTPCmdConfig *)calloc(CMD_LAST, sizeof(SMTPCmdConfig));
if (config->cmd_config == NULL)
{
DynamicPreprocessorFatalMessage("%s(%d) => Failed to allocate memory for SMTP "
"command structure\n",
*(_dpd.config_file), *(_dpd.config_line));
}
*errStr = '\0';
arg = strtok(args, CONF_SEPARATORS);
while ( arg != NULL )
{
if ( !strcasecmp(CONF_PORTS, arg) )
{
ret = ProcessPorts(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_INSPECTION_TYPE, arg) )
{
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
if ( !strcasecmp(CONF_STATEFUL, value) )
{
config->inspection_type = SMTP_STATEFUL;
}
else
{
config->inspection_type = SMTP_STATELESS;
}
}
else if ( !strcasecmp(CONF_NORMALIZE, arg) )
{
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
if ( !strcasecmp(CONF_NONE, value) )
{
config->normalize = NORMALIZE_NONE;
}
else if ( !strcasecmp(CONF_ALL, value) )
{
config->normalize = NORMALIZE_ALL;
}
else
{
config->normalize = NORMALIZE_CMDS;
}
}
else if ( !strcasecmp(CONF_IGNORE_DATA, arg) )
{
config->ignore_data = 1;
}
else if ( !strcasecmp(CONF_IGNORE_TLS_DATA, arg) )
{
config->ignore_tls_data = 1;
}
else if ( !strcasecmp(CONF_MAX_COMMAND_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
return;
config->max_command_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_MAX_HEADER_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
return;
config->max_header_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_MAX_RESPONSE_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
return;
config->max_response_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_NO_ALERTS, arg) )
{
config->no_alerts = 1;
}
else if ( !strcasecmp(CONF_ALERT_UNKNOWN_CMDS, arg) )
{
config->alert_unknown_cmds = 1;
}
else if ( !strcasecmp(CONF_INVALID_CMDS, arg) )
{
/* Parse disallowed commands */
ret = ProcessCmds(config, errStr, errStrLen, ACTION_ALERT);
}
else if ( !strcasecmp(CONF_VALID_CMDS, arg) )
{
/* Parse allowed commands */
ret = ProcessCmds(config, errStr, errStrLen, ACTION_NO_ALERT);
}
else if ( !strcasecmp(CONF_NORMALIZE_CMDS, arg) )
{
/* Parse normalized commands */
ret = ProcessCmds(config, errStr, errStrLen, ACTION_NORMALIZE);
}
else if ( !strcasecmp(CONF_ALT_MAX_COMMAND_LINE_LEN, arg) )
{
/* Parse max line len for commands */
ret = ProcessAltMaxCmdLen(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_SMTP_MEMCAP, arg) )
{
ret = ProcessSmtpMemcap(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_MAX_MIME_MEM, arg) )
{
ret = ProcessMaxMimeMem(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_MAX_MIME_DEPTH, arg) )
{
deprecated_options = 1;
_dpd.logMsg("WARNING: %s(%d) => The SMTP config option 'max_mime_depth' is deprecated.\n",
*(_dpd.config_file), *(_dpd.config_line));
if(!b64_option)
ret = ProcessMaxMimeDepth(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_ENABLE_MIME_DECODING, arg) )
{
deprecated_options = 1;
_dpd.logMsg("WARNING: %s(%d) => The SMTP config option 'enable_mime_decoding' is deprecated.\n",
*(_dpd.config_file), *(_dpd.config_line));
if(!b64_option)
config->enable_mime_decoding = 1;
}
else if ( !strcasecmp(CONF_DISABLED, arg) )
{
config->disabled = 1;
}
else if ( !strcasecmp(CONF_XLINK2STATE, arg) )
{
ret = ProcessXlink2State(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_LOG_FILENAME, arg) )
{
config->log_filename = 1;
}
else if ( !strcasecmp(CONF_LOG_MAIL_FROM, arg) )
{
config->log_mailfrom = 1;
}
else if ( !strcasecmp(CONF_LOG_RCPT_TO, arg) )
{
config->log_rcptto = 1;
}
else if ( !strcasecmp(CONF_LOG_EMAIL_HDRS, arg) )
{
config->log_email_hdrs = 1;
}
else if ( !strcasecmp(CONF_EMAIL_HDRS_LOG_DEPTH, arg) )
{
ret = ProcessLogDepth(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_PRINT_CMDS, arg) )
{
config->print_cmds = 1;
}
else if ( !strcasecmp(CONF_B64_DECODE, arg) )
{
b64_option = 1;
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_B64_DECODE, DECODE_B64);
}
else if ( !strcasecmp(CONF_QP_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_QP_DECODE, DECODE_QP);
}
else if ( !strcasecmp(CONF_UU_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_UU_DECODE, DECODE_UU);
}
else if ( !strcasecmp(CONF_BITENC_DECODE, arg) )
{
ret = ProcessDecodeDepth(config, errStr, errStrLen, CONF_BITENC_DECODE, DECODE_BITENC);
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Unknown SMTP configuration option %s\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if (ret == -1)
{
/*
** Fatal Error, log error and exit.
*/
if (*errStr)
{
DynamicPreprocessorFatalMessage("%s(%d) => %s\n",
*(_dpd.config_file), *(_dpd.config_line), errStr);
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Undefined Error.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
}
/* Get next token */
arg = strtok(NULL, CONF_SEPARATORS);
}
if(!b64_option)
{
if(config->enable_mime_decoding)
config->b64_depth = config->max_mime_depth;
}
else if(deprecated_options)
{
DynamicPreprocessorFatalMessage("%s(%d) => Cannot specify 'enable_mime_decoding' or 'max_mime_depth' with "
"'b64_decode_depth'\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if(!config->email_hdrs_log_depth)
{
if(config->log_email_hdrs)
{
_dpd.logMsg("WARNING: %s(%d) => 'log_email_hdrs' enabled with 'email_hdrs_log_depth' = 0."
"Email headers won't be logged. Please set 'email_hdrs_log_depth' > 0 to enable logging.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
config->log_email_hdrs = 0;
}
}
/*
* Function: SMTP_ParseArgs(char *)
*
* Purpose: Process the preprocessor arguments from the rules file and
* initialize the preprocessor's data struct. This function doesn't
* have to exist if it makes sense to parse the args in the init
* function.
*
* Arguments: args => argument list
*
* Returns: void function
*
*/
void SMTP_ParseArgs(SMTPConfig *config, char *args)
{
int ret = 0;
char *arg;
char *value;
char errStr[ERRSTRLEN];
int errStrLen = ERRSTRLEN;
int deprecated_options = 0;
if ((config == NULL) || (args == NULL))
return;
enablePort( config->ports, SMTP_DEFAULT_SERVER_PORT );
enablePort( config->ports, XLINK2STATE_DEFAULT_PORT );
enablePort( config->ports, SMTP_DEFAULT_SUBMISSION_PORT );
config->inspection_type = SMTP_STATELESS;
config->max_command_line_len = DEFAULT_MAX_COMMAND_LINE_LEN;
config->max_header_line_len = DEFAULT_MAX_HEADER_LINE_LEN;
config->max_response_line_len = DEFAULT_MAX_RESPONSE_LINE_LEN;
config->max_mime_depth = DEFAULT_MAX_MIME_DEPTH;
config->memcap = DEFAULT_SMTP_MEMCAP;
config->alert_xlink2state = 1;
config->print_cmds = 1;
config->enable_mime_decoding = 0;
_dpd.fileAPI->set_mime_decode_config_defauts(&(config->decode_conf));
_dpd.fileAPI->set_mime_log_config_defauts(&(config->log_config));
config->log_config.email_hdrs_log_depth = DEFAULT_LOG_DEPTH;
config->cmd_config = (SMTPCmdConfig *)calloc(CMD_LAST, sizeof(SMTPCmdConfig));
if (config->cmd_config == NULL)
{
DynamicPreprocessorFatalMessage("%s(%d) => Failed to allocate memory for SMTP "
"command structure\n",
*(_dpd.config_file), *(_dpd.config_line));
}
*errStr = '\0';
arg = strtok(args, CONF_SEPARATORS);
while ( arg != NULL )
{
unsigned long val = 0;
if ( !strcasecmp(CONF_PORTS, arg) )
{
ret = ProcessPorts(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_INSPECTION_TYPE, arg) )
{
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
if ( !strcasecmp(CONF_STATEFUL, value) )
{
config->inspection_type = SMTP_STATEFUL;
}
else
{
config->inspection_type = SMTP_STATELESS;
}
}
else if ( !strcasecmp(CONF_NORMALIZE, arg) )
{
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
{
return;
}
if ( !strcasecmp(CONF_NONE, value) )
{
config->normalize = NORMALIZE_NONE;
}
else if ( !strcasecmp(CONF_ALL, value) )
{
config->normalize = NORMALIZE_ALL;
}
else
{
config->normalize = NORMALIZE_CMDS;
}
}
else if ( !strcasecmp(CONF_IGNORE_DATA, arg) )
{
config->decode_conf.ignore_data = 1;
}
else if ( !strcasecmp(CONF_IGNORE_TLS_DATA, arg) )
{
config->ignore_tls_data = 1;
}
else if ( !strcasecmp(CONF_MAX_COMMAND_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
return;
config->max_command_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_MAX_HEADER_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
return;
config->max_header_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_MAX_RESPONSE_LINE_LEN, arg) )
{
char *endptr;
value = strtok(NULL, CONF_SEPARATORS);
if ( value == NULL )
return;
config->max_response_line_len = strtol(value, &endptr, 10);
}
else if ( !strcasecmp(CONF_NO_ALERTS, arg) )
{
config->no_alerts = 1;
}
else if ( !strcasecmp(CONF_ALERT_UNKNOWN_CMDS, arg) )
{
config->alert_unknown_cmds = 1;
}
else if ( !strcasecmp(CONF_INVALID_CMDS, arg) )
{
/* Parse disallowed commands */
ret = ProcessCmds(config, errStr, errStrLen, ACTION_ALERT, SMTP_CMD_TYPE_NORMAL);
}
else if ( !strcasecmp(CONF_VALID_CMDS, arg) )
{
/* Parse allowed commands */
ret = ProcessCmds(config, errStr, errStrLen, ACTION_NO_ALERT, SMTP_CMD_TYPE_NORMAL);
}
else if ( !strcasecmp(CONF_AUTH_CMDS, arg) )
{
ret = ProcessCmds(config, errStr, errStrLen, ACTION_NO_ALERT, SMTP_CMD_TYPE_AUTH);
}
else if ( !strcasecmp(CONF_DATA_CMDS, arg) )
{
ret = ProcessCmds(config, errStr, errStrLen, ACTION_NO_ALERT, SMTP_CMD_TYPE_DATA);
}
else if ( !strcasecmp(CONF_BDATA_CMDS, arg) )
{
ret = ProcessCmds(config, errStr, errStrLen, ACTION_NO_ALERT, SMTP_CMD_TYPE_BDATA);
}
else if ( !strcasecmp(CONF_NORMALIZE_CMDS, arg) )
{
/* Parse normalized commands */
ret = ProcessCmds(config, errStr, errStrLen, ACTION_NORMALIZE, SMTP_CMD_TYPE_NORMAL);
}
else if ( !strcasecmp(CONF_ALT_MAX_COMMAND_LINE_LEN, arg) )
{
/* Parse max line len for commands */
ret = ProcessAltMaxCmdLen(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_SMTP_MEMCAP, arg) )
{
ret = _dpd.checkValueInRange(strtok(NULL, CONF_SEPARATORS), CONF_SMTP_MEMCAP,
MIN_SMTP_MEMCAP, MAX_SMTP_MEMCAP, &val);
config->memcap = (uint32_t)val;
}
else if ( !strcasecmp(CONF_MAX_MIME_MEM, arg) )
{
ret = _dpd.checkValueInRange(strtok(NULL, CONF_SEPARATORS), CONF_MAX_MIME_MEM,
MIN_MIME_MEM, MAX_MIME_MEM, &val);
config->decode_conf.max_mime_mem = (int)val;
}
else if ( !strcasecmp(CONF_MAX_MIME_DEPTH, arg) )
{
deprecated_options = 1;
_dpd.logMsg("WARNING: %s(%d) => The SMTP config option 'max_mime_depth' is deprecated.\n",
*(_dpd.config_file), *(_dpd.config_line));
ret = ProcessMaxMimeDepth(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_ENABLE_MIME_DECODING, arg) )
{
deprecated_options = 1;
_dpd.logMsg("WARNING: %s(%d) => The SMTP config option 'enable_mime_decoding' is deprecated.\n",
*(_dpd.config_file), *(_dpd.config_line));
config->enable_mime_decoding = 1;
}
else if ( !strcasecmp(CONF_DISABLED, arg) )
{
config->disabled = 1;
}
else if ( !strcasecmp(CONF_XLINK2STATE, arg) )
{
ret = ProcessXlink2State(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_LOG_FILENAME, arg) )
{
config->log_config.log_filename = 1;
}
else if ( !strcasecmp(CONF_LOG_MAIL_FROM, arg) )
{
config->log_config.log_mailfrom = 1;
}
else if ( !strcasecmp(CONF_LOG_RCPT_TO, arg) )
{
config->log_config.log_rcptto = 1;
}
else if ( !strcasecmp(CONF_LOG_EMAIL_HDRS, arg) )
{
config->log_config.log_email_hdrs = 1;
}
else if ( !strcasecmp(CONF_EMAIL_HDRS_LOG_DEPTH, arg) )
{
ret = ProcessLogDepth(config, errStr, errStrLen);
}
else if ( !strcasecmp(CONF_PRINT_CMDS, arg) )
{
config->print_cmds = 1;
}
else if(!_dpd.fileAPI->parse_mime_decode_args(&(config->decode_conf), arg, "SMTP"))
{
ret = 0;
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Unknown SMTP configuration option %s\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if (ret == -1)
{
/*
** Fatal Error, log error and exit.
*/
if (*errStr)
{
DynamicPreprocessorFatalMessage("%s(%d) => %s\n",
*(_dpd.config_file), *(_dpd.config_line), errStr);
}
else
{
DynamicPreprocessorFatalMessage("%s(%d) => Undefined Error.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
}
/* Get next token */
arg = strtok(NULL, CONF_SEPARATORS);
}
// NOTE: the default b64_depth is not defined in this file
// but is equal to DEFAULT_MAX_MIME_DEPTH
if(config->decode_conf.b64_depth == DEFAULT_MAX_MIME_DEPTH)
{
if(config->enable_mime_decoding)
config->decode_conf.b64_depth = config->max_mime_depth;
}
else if(deprecated_options)
{
DynamicPreprocessorFatalMessage("%s(%d) => Cannot specify 'enable_mime_decoding' or 'max_mime_depth' with "
"'b64_decode_depth'\n",
*(_dpd.config_file), *(_dpd.config_line), arg);
}
if(!config->log_config.email_hdrs_log_depth)
{
if(config->log_config.log_email_hdrs)
{
_dpd.logMsg("WARNING: %s(%d) => 'log_email_hdrs' enabled with 'email_hdrs_log_depth' = 0."
"Email headers won't be logged. Please set 'email_hdrs_log_depth' > 0 to enable logging.\n",
*(_dpd.config_file), *(_dpd.config_line));
}
config->log_config.log_email_hdrs = 0;
}
}