static void SIPReload(struct _SnortConfig *sc, char *args, void **new_config)
{
tSfPolicyUserContextId sip_swap_config = (tSfPolicyUserContextId)*new_config;
tSfPolicyId policy_id = _dpd.getParserPolicy(sc);
SIPConfig * pPolicyConfig = NULL;
if (sip_swap_config == NULL)
{
//create a context
sip_swap_config = sfPolicyConfigCreate();
if (sip_swap_config == NULL)
{
DynamicPreprocessorFatalMessage("Failed to allocate memory for SIP config.\n");
}
*new_config = (void *)sip_swap_config;
}
sfPolicyUserPolicySet (sip_swap_config, policy_id);
pPolicyConfig = (SIPConfig *)sfPolicyUserDataGetCurrent(sip_swap_config);
if (pPolicyConfig != NULL)
{
DynamicPreprocessorFatalMessage("SIP preprocessor can only be configured once.\n");
}
pPolicyConfig = (SIPConfig *)calloc(1, sizeof(SIPConfig));
if (!pPolicyConfig)
{
DynamicPreprocessorFatalMessage("Could not allocate memory for "
"SIP preprocessor configuration.\n");
}
sfPolicyUserDataSetCurrent(sip_swap_config, pPolicyConfig);
SIP_RegRuleOptions(sc);
ParseSIPArgs(pPolicyConfig, (u_char *)args);
}
/* Initializes the SIP preprocessor module and registers
* it in the preprocessor list.
*
* PARAMETERS:
*
* argp: Pointer to argument string to process for config
* data.
*
* RETURNS: Nothing.
*/
static void SIPInit(struct _SnortConfig *sc, char *argp)
{
tSfPolicyId policy_id = _dpd.getParserPolicy(sc);
SIPConfig *pDefaultPolicyConfig = NULL;
SIPConfig *pPolicyConfig = NULL;
if (sip_config == NULL)
{
//create a context
sip_config = sfPolicyConfigCreate();
if (sip_config == NULL)
{
DynamicPreprocessorFatalMessage("Failed to allocate memory "
"for SIP config.\n");
}
_dpd.addPreprocConfCheck(sc, SIPCheckConfig);
_dpd.registerPreprocStats(SIP_NAME, SIP_PrintStats);
_dpd.addPreprocExit(SIPCleanExit, NULL, PRIORITY_LAST, PP_SIP);
#ifdef PERF_PROFILING
_dpd.addPreprocProfileFunc("sip", (void *)&sipPerfStats, 0, _dpd.totalPerfStats, NULL);
#endif
#ifdef TARGET_BASED
sip_app_id = _dpd.findProtocolReference("sip");
if (sip_app_id == SFTARGET_UNKNOWN_PROTOCOL)
sip_app_id = _dpd.addProtocolReference("sip");
// register with session to handle applications
_dpd.sessionAPI->register_service_handler( PP_SIP, sip_app_id );
#endif
}
sfPolicyUserPolicySet (sip_config, policy_id);
pDefaultPolicyConfig = (SIPConfig *)sfPolicyUserDataGetDefault(sip_config);
pPolicyConfig = (SIPConfig *)sfPolicyUserDataGetCurrent(sip_config);
if ((pPolicyConfig != NULL) && (pDefaultPolicyConfig == NULL))
{
DynamicPreprocessorFatalMessage("SIP preprocessor can only be "
"configured once.\n");
}
pPolicyConfig = (SIPConfig *)calloc(1, sizeof(SIPConfig));
if (!pPolicyConfig)
{
DynamicPreprocessorFatalMessage("Could not allocate memory for "
"SIP preprocessor configuration.\n");
}
sfPolicyUserDataSetCurrent(sip_config, pPolicyConfig);
SIP_RegRuleOptions(sc);
ParseSIPArgs(pPolicyConfig, (u_char *)argp);
}
static void SIPReload(char *args)
{
tSfPolicyId policy_id = _dpd.getParserPolicy();
SIPConfig * pPolicyConfig = NULL;
if (sip_swap_config == NULL)
{
//create a context
sip_swap_config = sfPolicyConfigCreate();
if (sip_swap_config == NULL)
{
DynamicPreprocessorFatalMessage("Failed to allocate memory "
"for SIP config.\n");
}
}
sfPolicyUserPolicySet (sip_swap_config, policy_id);
pPolicyConfig = (SIPConfig *)sfPolicyUserDataGetCurrent(sip_swap_config);
if (pPolicyConfig != NULL)
{
DynamicPreprocessorFatalMessage("SIP preprocessor can only be "
"configured once.\n");
}
pPolicyConfig = (SIPConfig *)calloc(1, sizeof(SIPConfig));
if (!pPolicyConfig)
{
DynamicPreprocessorFatalMessage("Could not allocate memory for "
"SIP preprocessor configuration.\n");
}
sfPolicyUserDataSetCurrent(sip_swap_config, pPolicyConfig);
SIP_RegRuleOptions();
ParseSIPArgs(pPolicyConfig, (u_char *)args);
if( pPolicyConfig->disabled )
return;
if (_dpd.streamAPI == NULL)
{
DynamicPreprocessorFatalMessage("SetupSIP(): The Stream preprocessor must be enabled.\n");
}
_dpd.addPreproc( SIPmain, PRIORITY_APPLICATION, PP_SIP, PROTO_BIT__UDP|PROTO_BIT__TCP );
_dpd.addPreprocReloadVerify(SIPReloadVerify);
_addPortsToStream5Filter(pPolicyConfig, policy_id);
#ifdef TARGET_BASED
_addServicesToStream5Filter(policy_id);
#endif
}
/* Initializes the SIP preprocessor module and registers
* it in the preprocessor list.
*
* PARAMETERS:
*
* argp: Pointer to argument string to process for config
* data.
*
* RETURNS: Nothing.
*/
static void SIPInit(char *argp)
{
tSfPolicyId policy_id = _dpd.getParserPolicy();
SIPConfig *pDefaultPolicyConfig = NULL;
SIPConfig *pPolicyConfig = NULL;
if (sip_config == NULL)
{
//create a context
sip_config = sfPolicyConfigCreate();
if (sip_config == NULL)
{
DynamicPreprocessorFatalMessage("Failed to allocate memory "
"for SIP config.\n");
}
_dpd.addPreprocConfCheck(SIPCheckConfig);
_dpd.registerPreprocStats(SIP_NAME, SIP_PrintStats);
_dpd.addPreprocExit(SIPCleanExit, NULL, PRIORITY_LAST, PP_SIP);
#ifdef PERF_PROFILING
_dpd.addPreprocProfileFunc("sip", (void *)&sipPerfStats, 0, _dpd.totalPerfStats);
#endif
#ifdef TARGET_BASED
sip_app_id = _dpd.findProtocolReference("sip");
if (sip_app_id == SFTARGET_UNKNOWN_PROTOCOL)
sip_app_id = _dpd.addProtocolReference("sip");
#endif
}
sfPolicyUserPolicySet (sip_config, policy_id);
pDefaultPolicyConfig = (SIPConfig *)sfPolicyUserDataGetDefault(sip_config);
pPolicyConfig = (SIPConfig *)sfPolicyUserDataGetCurrent(sip_config);
if ((pPolicyConfig != NULL) && (pDefaultPolicyConfig == NULL))
{
DynamicPreprocessorFatalMessage("SIP preprocessor can only be "
"configured once.\n");
}
pPolicyConfig = (SIPConfig *)calloc(1, sizeof(SIPConfig));
if (!pPolicyConfig)
{
DynamicPreprocessorFatalMessage("Could not allocate memory for "
"SIP preprocessor configuration.\n");
}
sfPolicyUserDataSetCurrent(sip_config, pPolicyConfig);
SIP_RegRuleOptions();
ParseSIPArgs(pPolicyConfig, (u_char *)argp);
if (policy_id != 0)
pPolicyConfig->maxNumSessions = pDefaultPolicyConfig->maxNumSessions;
if ( pPolicyConfig->disabled )
return;
if (_dpd.streamAPI == NULL)
{
DynamicPreprocessorFatalMessage("SetupSIP(): The Stream preprocessor must be enabled.\n");
}
_dpd.addPreproc( SIPmain, PRIORITY_APPLICATION, PP_SIP, PROTO_BIT__UDP|PROTO_BIT__TCP );
_addPortsToStream5Filter(pPolicyConfig, policy_id);
#ifdef TARGET_BASED
_addServicesToStream5Filter(policy_id);
#endif
}
