/* Almost like ModbusInit, but not quite. */
static void ModbusReload(char *args)
{
modbus_config_t *modbus_policy = NULL;
if (modbus_swap_context_id == NULL)
{
modbus_swap_context_id = sfPolicyConfigCreate();
if (modbus_swap_context_id == NULL)
{
_dpd.fatalMsg("Failed to allocate memory "
"for Modbus config.\n");
}
if (_dpd.streamAPI == NULL)
{
_dpd.fatalMsg("SetupModbus(): The Stream preprocessor "
"must be enabled.\n");
}
}
modbus_policy = ModbusPerPolicyInit(modbus_swap_context_id);
ParseModbusArgs(modbus_policy, args);
/* Can't add ports until they've been parsed... */
ModbusAddPortsToPaf(modbus_policy, _dpd.getParserPolicy());
ModbusPrintConfig(modbus_policy);
_dpd.addPreprocReloadVerify(ModbusReloadVerify);
}
/* Almost like ModbusInit, but not quite. */
static void ModbusReload(struct _SnortConfig *sc, char *args, void **new_config)
{
tSfPolicyUserContextId modbus_swap_context_id = (tSfPolicyUserContextId)*new_config;
modbus_config_t *modbus_policy = NULL;
if (modbus_swap_context_id == NULL)
{
modbus_swap_context_id = sfPolicyConfigCreate();
if (modbus_swap_context_id == NULL)
{
_dpd.fatalMsg("Failed to allocate memory "
"for Modbus config.\n");
}
if (_dpd.streamAPI == NULL)
{
_dpd.fatalMsg("SetupModbus(): The Stream preprocessor "
"must be enabled.\n");
}
*new_config = (void *)modbus_swap_context_id;
}
modbus_policy = ModbusPerPolicyInit(sc, modbus_swap_context_id);
ParseModbusArgs(modbus_policy, args);
/* Can't add ports until they've been parsed... */
ModbusAddPortsToPaf(sc, modbus_policy, _dpd.getParserPolicy(sc));
ModbusPrintConfig(modbus_policy);
}
/* Allocate memory for preprocessor config, parse the args, set up callbacks */
static void ModbusInit(char *argp)
{
modbus_config_t *modbus_policy = NULL;
if (modbus_context_id == NULL)
{
ModbusOneTimeInit();
}
modbus_policy = ModbusPerPolicyInit(modbus_context_id);
ParseModbusArgs(modbus_policy, argp);
/* Can't add ports until they've been parsed... */
ModbusAddPortsToPaf(modbus_policy, _dpd.getParserPolicy());
ModbusPrintConfig(modbus_policy);
}
/* Allocate memory for preprocessor config, parse the args, set up callbacks */
static void ModbusInit(struct _SnortConfig *sc, char *argp)
{
modbus_config_t *modbus_policy = NULL;
if (modbus_context_id == NULL)
{
ModbusOneTimeInit(sc);
}
modbus_policy = ModbusPerPolicyInit(sc, modbus_context_id);
ParseModbusArgs(modbus_policy, argp);
/* Can't add ports until they've been parsed... */
ModbusAddPortsToPaf(sc, modbus_policy, _dpd.getParserPolicy(sc));
#ifdef TARGET_BASED
ModbusAddServiceToPaf(sc, modbus_app_id, _dpd.getParserPolicy(sc));
#endif
// register ports with session and stream
registerPortsForDispatch( sc, modbus_policy );
registerPortsForReassembly( modbus_policy, SSN_DIR_FROM_SERVER | SSN_DIR_FROM_CLIENT );
ModbusPrintConfig(modbus_policy);
}
