source-napatech.c File Reference

#include "suricata-common.h"
#include "suricata.h"
#include "threadvars.h"
#include "util-optimize.h"
#include "tm-queuehandlers.h"
#include "tm-threads.h"
#include "tm-modules.h"
#include "util-privs.h"
#include "tmqh-packetpool.h"
#include "util-napatech.h"
#include "source-napatech.h"
#include <numa.h>
#include <nt.h>

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Data Structures
struct	NapatechThreadVars_

Typedefs
typedef struct NapatechThreadVars_	NapatechThreadVars

Functions
TmEcode	NapatechStreamThreadInit (ThreadVars *tv, const void *initdata, void **data)
	Initialize the Napatech receiver thread, generate a single NapatechThreadVar structure for each thread, this will contain a NtNetStreamRx_t stream handle which is used when the thread executes to acquire the packets. More...
void	NapatechStreamThreadExitStats (ThreadVars *tv, void *data)
	Print some stats to the log at program exit. More...
TmEcode	NapatechPacketLoop (ThreadVars *tv, void *data, void *slot)
	Main Napatechpacket processing loop. More...
TmEcode	NapatechDecodeThreadInit (ThreadVars *tv, const void *initdata, void **data)
	Initialization of Napatech Thread. More...
TmEcode	NapatechDecodeThreadDeinit (ThreadVars *tv, void *data)
	Deinitialization of Napatech Thread. More...
TmEcode	NapatechDecode (ThreadVars *tv, Packet *p, void *data)
	This function passes off to link type decoders. More...
	SC_ATOMIC_DECLARE (uint64_t, total_packets)
	SC_ATOMIC_DECLARE (uint64_t, total_drops)
	SC_ATOMIC_DECLARE (uint16_t, total_tallied)
	SC_ATOMIC_DECLARE (uint16_t, stream_count)
	SC_ATOMIC_DECLARE (uint16_t, numa0_count)
	SC_ATOMIC_DECLARE (uint16_t, numa1_count)
	SC_ATOMIC_DECLARE (uint16_t, numa2_count)
	SC_ATOMIC_DECLARE (uint16_t, numa3_count)
	SC_ATOMIC_DECLARE (uint64_t, flow_callback_cnt)
	SC_ATOMIC_DECLARE (uint64_t, flow_callback_handled_pkts)
	SC_ATOMIC_DECLARE (uint64_t, flow_callback_udp_pkts)
	SC_ATOMIC_DECLARE (uint64_t, flow_callback_tcp_pkts)
	SC_ATOMIC_DECLARE (uint64_t, flow_callback_unhandled_pkts)
void	TmModuleNapatechStreamRegister (void)
	Register the Napatech receiver (reader) module. More...
void	TmModuleNapatechDecodeRegister (void)
	Register the Napatech decoder module. More...
TmEcode	NapatechStreamThreadDeinit (ThreadVars *tv, void *data)
	Deinitializes the NAPATECH card. More...

Variables
int	max_pending_packets

Detailed Description

• *

  Author

  nPulse Technologies, LLC.

• *

  Author

  Matt Keeler mk@np.nosp@m.ulse.nosp@m.tech..nosp@m.com

  • Support for NAPATECH adapter with the 3GD Driver/API. Requires libntapi from Napatech A/S.

Definition in file source-napatech.c.

Typedef Documentation

NapatechThreadVars

typedef struct NapatechThreadVars_ NapatechThreadVars

Function Documentation

NapatechDecode()

TmEcode NapatechDecode	(	ThreadVars *	tv,
		Packet *	p,
		void *	data
	)

This function passes off to link type decoders.

NapatechDecode decodes packets from Napatech and passes them off to the proper link type decoder.

Parameters

t	pointer to ThreadVars
p	pointer to the current packet
data	pointer that gets cast into PcapThreadVars for ptv

Definition at line 1101 of file source-napatech.c.

References BUG_ON, Packet_::datalink, DecodeEthernet(), DecodeUpdatePacketCounters(), dtv, GET_PKT_DATA, GET_PKT_LEN, LINKTYPE_ETHERNET, PacketDecodeFinalize(), PKT_IS_PSEUDOPKT, SC_ERR_DATALINK_UNIMPLEMENTED, SCEnter, SCLogError, SCReturnInt, TM_ECODE_OK, and tv.

Referenced by TmModuleNapatechDecodeRegister().

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NapatechDecodeThreadDeinit()

TmEcode NapatechDecodeThreadDeinit	(	ThreadVars *	tv,
		void *	data
	)

Deinitialization of Napatech Thread.

Parameters

tv	pointer to ThreadVars
data	pointer that gets cast into DecoderThreadVars

Definition at line 1154 of file source-napatech.c.

References DecodeThreadVarsFree(), SCReturnInt, TM_ECODE_OK, and tv.

Referenced by TmModuleNapatechDecodeRegister().

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NapatechDecodeThreadInit()

TmEcode NapatechDecodeThreadInit	(	ThreadVars *	tv,
		const void *	initdata,
		void **	data
	)

Initialization of Napatech Thread.

Parameters

t	pointer to ThreadVars
initdata	- unused.
data	pointer that gets cast into DecoderThreadVars

Definition at line 1134 of file source-napatech.c.

References DecodeRegisterPerfCounters(), DecodeThreadVarsAlloc(), dtv, SCEnter, SCReturnInt, TM_ECODE_FAILED, TM_ECODE_OK, and tv.

Referenced by TmModuleNapatechDecodeRegister().

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NapatechPacketLoop()

TmEcode NapatechPacketLoop	(	ThreadVars *	tv,
		void *	data,
		void *	slot
	)

Main Napatechpacket processing loop.

Parameters

tv	Thread variable to ThreadVars
data	Pointer to NapatechThreadVars with data specific to Napatech
slot	TMSlot where this instance is running.

Definition at line 785 of file source-napatech.c.

References ConfGetBool(), MAX_ADAPTERS, and NapatechThreadVars_::stream_id.

Referenced by TmModuleNapatechStreamRegister().

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NapatechStreamThreadDeinit()

TmEcode NapatechStreamThreadDeinit	(	ThreadVars *	tv,
		void *	data
	)

Deinitializes the NAPATECH card.

Parameters

tv	pointer to ThreadVars
data	pointer that gets cast into PcapThreadVars for ptv

Definition at line 1080 of file source-napatech.c.

References NapatechThreadVars_::rx_stream, SCEnter, SCLogDebug, SCReturnInt, NapatechThreadVars_::stream_id, and TM_ECODE_OK.

Referenced by TmModuleNapatechStreamRegister().

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NapatechStreamThreadExitStats()

void NapatechStreamThreadExitStats	(	ThreadVars *	tv,
		void *	data
	)

Print some stats to the log at program exit.

Parameters

tv	Pointer to ThreadVars.
data	Pointer to data, ErfFileThreadVars.

Definition at line 1038 of file source-napatech.c.

References NapatechCurrentStats_::current_bytes, NapatechCurrentStats_::current_drop_packets, NapatechCurrentStats_::current_packets, NapatechGetCurrentStats(), NapatechGetNumConfiguredStreams(), SC_ATOMIC_ADD, SC_ATOMIC_GET, SCLogInfo, and NapatechThreadVars_::stream_id.

Referenced by TmModuleNapatechStreamRegister().

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NapatechStreamThreadInit()

TmEcode NapatechStreamThreadInit	(	ThreadVars *	tv,
		const void *	initdata,
		void **	data
	)

Initialize the Napatech receiver thread, generate a single NapatechThreadVar structure for each thread, this will contain a NtNetStreamRx_t stream handle which is used when the thread executes to acquire the packets.

Parameters

tv	Thread variable to ThreadVars
initdata	Initial data to the adapter passed from the user, this is processed by the user.

For now, we assume that we have only a single name for the NAPATECH adapter.

Parameters

data	data pointer gets populated with

Definition at line 642 of file source-napatech.c.

References FatalError, NapatechStreamDevConf::hba, NapatechThreadVars_::hba, SC_ERR_FATAL, SCCalloc, SCEnter, SCLogDebug, SCReturnInt, NapatechStreamDevConf::stream_id, NapatechThreadVars_::stream_id, TM_ECODE_OK, tv, NapatechThreadVars_::tv, and unlikely.

Referenced by TmModuleNapatechStreamRegister().

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SC_ATOMIC_DECLARE() [1/13]

SC_ATOMIC_DECLARE	(	uint16_t	,
		numa0_count
	)

SC_ATOMIC_DECLARE() [2/13]

SC_ATOMIC_DECLARE	(	uint16_t	,
		numa1_count
	)

SC_ATOMIC_DECLARE() [3/13]

SC_ATOMIC_DECLARE	(	uint16_t	,
		numa2_count
	)

SC_ATOMIC_DECLARE() [4/13]

SC_ATOMIC_DECLARE	(	uint16_t	,
		numa3_count
	)

SC_ATOMIC_DECLARE() [5/13]

SC_ATOMIC_DECLARE	(	uint16_t	,
		stream_count
	)

SC_ATOMIC_DECLARE() [6/13]

SC_ATOMIC_DECLARE	(	uint16_t	,
		total_tallied
	)

SC_ATOMIC_DECLARE() [7/13]

SC_ATOMIC_DECLARE	(	uint64_t	,
		flow_callback_cnt
	)

SC_ATOMIC_DECLARE() [8/13]

SC_ATOMIC_DECLARE	(	uint64_t	,
		flow_callback_handled_pkts
	)

SC_ATOMIC_DECLARE() [9/13]

SC_ATOMIC_DECLARE	(	uint64_t	,
		flow_callback_tcp_pkts
	)

SC_ATOMIC_DECLARE() [10/13]

SC_ATOMIC_DECLARE	(	uint64_t	,
		flow_callback_udp_pkts
	)

SC_ATOMIC_DECLARE() [11/13]

SC_ATOMIC_DECLARE	(	uint64_t	,
		flow_callback_unhandled_pkts
	)

SC_ATOMIC_DECLARE() [12/13]

SC_ATOMIC_DECLARE	(	uint64_t	,
		total_drops
	)

SC_ATOMIC_DECLARE() [13/13]

SC_ATOMIC_DECLARE	(	uint64_t	,
		total_packets
	)

TmModuleNapatechDecodeRegister()

void TmModuleNapatechDecodeRegister

(

void

)

Register the Napatech decoder module.

Definition at line 160 of file source-napatech.c.

References TmModule_::cap_flags, TmModule_::flags, TmModule_::Func, TmModule_::name, NapatechDecode(), NapatechDecodeThreadDeinit(), NapatechDecodeThreadInit(), TmModule_::ThreadDeinit, TmModule_::ThreadExitPrintStats, TmModule_::ThreadInit, TM_FLAG_DECODE_TM, TMM_DECODENAPATECH, and tmm_modules.

Referenced by RegisterAllModules().

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TmModuleNapatechStreamRegister()

void TmModuleNapatechStreamRegister

(

void

)

Register the Napatech receiver (reader) module.

Definition at line 128 of file source-napatech.c.

References TmModule_::cap_flags, TmModule_::flags, TmModule_::Func, TmModule_::name, NapatechPacketLoop(), NapatechStreamThreadDeinit(), NapatechStreamThreadExitStats(), NapatechStreamThreadInit(), TmModule_::PktAcqBreakLoop, TmModule_::PktAcqLoop, SC_ATOMIC_INIT, SC_CAP_NET_RAW, TmModule_::ThreadDeinit, TmModule_::ThreadExitPrintStats, TmModule_::ThreadInit, TM_FLAG_RECEIVE_TM, tmm_modules, and TMM_RECEIVENAPATECH.

Referenced by RegisterAllModules().

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