app-layer-enip-common.c File Reference

#include "suricata-common.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "detect-parse.h"
#include "detect-engine.h"
#include "util-byte.h"
#include "pkt-var.h"
#include "util-profiling.h"
#include "app-layer-enip-common.h"

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Functions
int	DecodeENIPPDU (const uint8_t *input, uint32_t input_len, ENIPTransaction *enip_data)
	Decode ENIP Encapsulation Header. More...
int	DecodeCommonPacketFormatPDU (const uint8_t *input, uint32_t input_len, ENIPTransaction *enip_data, uint16_t offset)
	Decode Common Packet Format. More...
int	DecodeCIPPDU (const uint8_t *input, uint32_t input_len, ENIPTransaction *enip_data, uint16_t offset)
	Decode CIP packet. More...
int	DecodeCIPRequestPDU (const uint8_t *input, uint32_t input_len, ENIPTransaction *enip_data, uint16_t offset)
	Decode CIP Request. More...
int	DecodeCIPRequestPathPDU (const uint8_t *input, uint32_t input_len, CIPServiceEntry *node, uint16_t offset)
	Decode CIP Request Path. More...
int	DecodeCIPResponsePDU (const uint8_t *input, uint32_t input_len, ENIPTransaction *enip_data, uint16_t offset)
	Decode CIP Response. More...
int	DecodeCIPRequestMSPPDU (const uint8_t *input, uint32_t input_len, ENIPTransaction *enip_data, uint16_t offset)
	Decode CIP Request Multi Service Packet. More...
int	DecodeCIPResponseMSPPDU (const uint8_t *input, uint32_t input_len, ENIPTransaction *enip_data, uint16_t offset)
	Decode CIP Response MultiService Packet. More...

Detailed Description

Author

Kevin Wong kwong.nosp@m.@sol.nosp@m.anane.nosp@m.twor.nosp@m.ks.co.nosp@m.m

App-layer parser for ENIP protocol common code

Definition in file app-layer-enip-common.c.

Function Documentation

DecodeCIPPDU()

int DecodeCIPPDU	(	const uint8_t *	input,
		uint32_t	input_len,
		ENIPTransaction *	enip_data,
		uint16_t	offset
	)

Decode CIP packet.

Parameters

input,input_len	data stream
enip_data	stores data from Packet
offset	current point in the packet

Returns

1 Packet ok

0 Packet has errors

Definition at line 412 of file app-layer-enip-common.c.

References DecodeCIPRequestPDU(), DecodeCIPResponsePDU(), ENIPTransaction_::encap_data_item, ENIPEncapDataItem_::length, offset, and SCLogDebug.

Referenced by DecodeCIPRequestMSPPDU(), and DecodeCIPResponseMSPPDU().

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DecodeCIPRequestMSPPDU()

int DecodeCIPRequestMSPPDU	(	const uint8_t *	input,
		uint32_t	input_len,
		ENIPTransaction *	enip_data,
		uint16_t	offset
	)

Decode CIP Request Multi Service Packet.

Parameters

input,input_len	data stream
enip_data	stores data from Packet
offset	current point in the packet

Returns

1 Packet ok

0 Packet has errors

Definition at line 867 of file app-layer-enip-common.c.

References BYTE_LITTLE_ENDIAN, ByteExtractUint16(), DecodeCIPPDU(), offset, and SCLogDebug.

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DecodeCIPRequestPathPDU()

int DecodeCIPRequestPathPDU	(	const uint8_t *	input,
		uint32_t	input_len,
		CIPServiceEntry *	node,
		uint16_t	offset
	)

Decode CIP Request Path.

Parameters

input,input_len	data stream
enip_data	stores data from Packet
offset	current point in the packet
cipserviced	the cip service rule

Returns

1 Packet matches

0 Packet not match

Definition at line 575 of file app-layer-enip-common.c.

References CIPServiceEntry_::request.

DecodeCIPRequestPDU()

int DecodeCIPRequestPDU	(	const uint8_t *	input,
		uint32_t	input_len,
		ENIPTransaction *	enip_data,
		uint16_t	offset
	)

Decode CIP Request.

Parameters

input,input_len	data stream
enip_data	stores data from Packet
offset	current point in the packet

Returns

1 Packet ok

0 Packet has errors

Definition at line 456 of file app-layer-enip-common.c.

References ENIPTransaction_::encap_data_item, ENIPEncapDataItem_::length, and SCLogDebug.

Referenced by DecodeCIPPDU().

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DecodeCIPResponseMSPPDU()

int DecodeCIPResponseMSPPDU	(	const uint8_t *	input,
		uint32_t	input_len,
		ENIPTransaction *	enip_data,
		uint16_t	offset
	)

Decode CIP Response MultiService Packet.

Parameters

input,input_len	data stream
enip_data	stores data from Packet
offset	current point in the packet

Returns

1 Packet ok

0 Packet has errors

Definition at line 919 of file app-layer-enip-common.c.

References BYTE_LITTLE_ENDIAN, ByteExtractUint16(), DecodeCIPPDU(), offset, and SCLogDebug.

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DecodeCIPResponsePDU()

int DecodeCIPResponsePDU	(	const uint8_t *	input,
		uint32_t	input_len,
		ENIPTransaction *	enip_data,
		uint16_t	offset
	)

Decode CIP Response.

Parameters

input,input_len	data stream
enip_data	stores data from Packet
offset	current point in the packet

Returns

1 Packet ok

0 Packet has errors

Definition at line 748 of file app-layer-enip-common.c.

References ENIPTransaction_::encap_data_item, ENIPEncapDataItem_::length, and SCLogDebug.

Referenced by DecodeCIPPDU().

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DecodeCommonPacketFormatPDU()

int DecodeCommonPacketFormatPDU	(	const uint8_t *	input,
		uint32_t	input_len,
		ENIPTransaction *	enip_data,
		uint16_t	offset
	)

Decode Common Packet Format.

Parameters

input,input_len	data stream
enip_data	stores data from Packet
offset	current point in the packet

Returns

1 Packet ok

0 Packet has errors

Definition at line 292 of file app-layer-enip-common.c.

References ENIPTransaction_::header, ENIPEncapHdr_::length, and SCLogDebug.

DecodeENIPPDU()

int DecodeENIPPDU	(	const uint8_t *	input,
		uint32_t	input_len,
		ENIPTransaction *	enip_data
	)

Decode ENIP Encapsulation Header.

Parameters

input,input_len	data stream
enip_data	stores data from Packet

Returns

1 Packet ok

0 Packet has errors

Definition at line 191 of file app-layer-enip-common.c.

References len, and offset.