decode-vxlan.c File Reference

#include "suricata-common.h"
#include "decode.h"
#include "decode-vxlan.h"
#include "decode-events.h"
#include "detect.h"
#include "detect-engine-port.h"
#include "flow.h"
#include "util-validate.h"
#include "util-unittest.h"
#include "util-debug.h"

Include dependency graph for decode-vxlan.c:

Go to the source code of this file.

Data Structures
struct	VXLANHeader_

Macros
#define	VXLAN_HEADER_LEN   sizeof(VXLANHeader)
#define	VXLAN_MAX_PORTS   4
#define	VXLAN_UNSET_PORT   -1
#define	VXLAN_DEFAULT_PORT   4789
#define	VXLAN_DEFAULT_PORT_S   "4789"

Typedefs
typedef struct VXLANHeader_	VXLANHeader

Functions
bool	DecodeVXLANEnabledForPort (const uint16_t sp, const uint16_t dp)
void	DecodeVXLANConfig (void)
int	DecodeVXLAN (ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, const uint8_t *pkt, uint32_t len)
void	DecodeVXLANRegisterTests (void)

Detailed Description

Author

Henrik Kramshoej hlk@k.nosp@m.rams.nosp@m.e.org

VXLAN tunneling scheme decoder.

This implementation is based on the following specification doc: https://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-00

Definition in file decode-vxlan.c.

Macro Definition Documentation

VXLAN_DEFAULT_PORT

#define VXLAN_DEFAULT_PORT   4789

Definition at line 47 of file decode-vxlan.c.

VXLAN_DEFAULT_PORT_S

#define VXLAN_DEFAULT_PORT_S   "4789"

Definition at line 48 of file decode-vxlan.c.

VXLAN_HEADER_LEN

#define VXLAN_HEADER_LEN   sizeof(VXLANHeader)

Definition at line 43 of file decode-vxlan.c.

VXLAN_MAX_PORTS

#define VXLAN_MAX_PORTS   4

Definition at line 45 of file decode-vxlan.c.

VXLAN_UNSET_PORT

#define VXLAN_UNSET_PORT   -1

Definition at line 46 of file decode-vxlan.c.

Typedef Documentation

VXLANHeader

typedef struct VXLANHeader_ VXLANHeader

Function Documentation

DecodeVXLAN()

int DecodeVXLAN	(	ThreadVars *	tv,
		DecodeThreadVars *	dtv,
		Packet *	p,
		const uint8_t *	pkt,
		uint32_t	len
	)

Parameters

pkt	payload data directly above UDP header
len	length in bytes of pkt

Definition at line 122 of file decode-vxlan.c.

References DecodeThreadVars_::counter_vxlan, DEBUG_VALIDATE_BUG_ON, ThreadVars_::decode_pq, DECODE_TUNNEL_IPV4, DECODE_TUNNEL_IPV6, DECODE_TUNNEL_UNSET, DECODE_TUNNEL_VLAN, dtv, ENGINE_SET_INVALID_EVENT, eth_type, ETHERNET_HEADER_LEN, ETHERNET_TYPE_8021AD, ETHERNET_TYPE_8021QINQ, ETHERNET_TYPE_ARP, ETHERNET_TYPE_IP, ETHERNET_TYPE_IPV6, ETHERNET_TYPE_VLAN, VXLANHeader_::flags, len, PacketEnqueueNoLock(), PacketTunnelPktSetup(), PKT_SET_SRC, PKT_SRC_DECODER_VXLAN, VXLANHeader_::res, SCLogDebug, SCNtohs, StatsIncr(), TM_ECODE_FAILED, TM_ECODE_OK, tv, unlikely, VXLANHeader_::vni, VXLAN_HEADER_LEN, and VXLAN_UNKNOWN_PAYLOAD_TYPE.

Referenced by DecodeUDP().

Here is the call graph for this function:

Here is the caller graph for this function:

DecodeVXLANConfig()

void DecodeVXLANConfig

(

void

)

Definition at line 98 of file decode-vxlan.c.

References SCConfGetBool(), SCConfGetNode(), SCConfNode_::val, and VXLAN_DEFAULT_PORT_S.

Referenced by DecodeGlobalConfig().

Here is the call graph for this function:

Here is the caller graph for this function:

DecodeVXLANEnabledForPort()

bool DecodeVXLANEnabledForPort	(	const uint16_t	sp,
		const uint16_t	dp
	)

Definition at line 62 of file decode-vxlan.c.

References SCLogDebug, and VXLAN_UNSET_PORT.

Referenced by DecodeUDP().

Here is the caller graph for this function:

DecodeVXLANRegisterTests()

void DecodeVXLANRegisterTests

(

void

)

Definition at line 270 of file decode-vxlan.c.

References UtRegisterTest().

Here is the call graph for this function: