lp.h File Reference

#include "common.h"

Go to the source code of this file.

Data Structures
struct	LpL2
	NDNLPv2 layer 2 fields and reassembler state. More...
struct	LpPitToken
	NDNLPv2 PIT token value. More...
struct	LpL3
	NDNLPv2 layer 3 fields. More...
struct	LpHeader
	Parsed NDNLPv2 header. More...

Typedefs
typedef struct LpL2	LpL2
	NDNLPv2 layer 2 fields and reassembler state. More...
typedef struct LpPitToken	LpPitToken
	NDNLPv2 PIT token value. More...
typedef struct LpL3	LpL3
	NDNLPv2 layer 3 fields. More...
typedef struct LpHeader	LpHeader
	Parsed NDNLPv2 header. More...

Functions
const char *	LpPitToken_ToString (const LpPitToken *token)
	Print PIT token as string for logging. More...
bool	LpHeader_Parse (LpHeader *lph, struct rte_mbuf *pkt)
	Parse NDNLPv2 header and strip from mbuf. More...
void	LpHeader_Prepend (struct rte_mbuf *pkt, const LpL3 *l3, const LpL2 *l2)
	Prepend NDNLPv2 header to mbuf. More...

Typedef Documentation

LpHeader

typedef struct LpHeader LpHeader

Parsed NDNLPv2 header.

LpL2

typedef struct LpL2 LpL2

NDNLPv2 layer 2 fields and reassembler state.

LpL3

typedef struct LpL3 LpL3

NDNLPv2 layer 3 fields.

LpPitToken

typedef struct LpPitToken LpPitToken

NDNLPv2 PIT token value.

Function Documentation

LpHeader_Parse()

bool LpHeader_Parse	(	LpHeader *	lph,
		struct rte_mbuf *	pkt
	)

Parse NDNLPv2 header and strip from mbuf.

Parameters

pkt	a uniquely owned, possibly segmented, direct mbuf.

Returns

whether success.

Postcondition

pkt contains only (fragment of) network layer packet.

This function recognizes these NDNLPv2 features:

• indexed fragmentation-reassembly
• PIT token
• network nack
• congestion mark

This function does not check whether header fields are applicable to network layer packet type, because network layer type is unknown before reassembly. For example, it would accept Nack header on Data packet.

LpHeader_Prepend()

void LpHeader_Prepend	(	struct rte_mbuf *	pkt,
		const LpL3 *	l3,
		const LpL2 *	l2
	)

Prepend NDNLPv2 header to mbuf.

Parameters

pkt	target mbuf, must have enough headroom.

Precondition

pkt contains (fragment of) network layer packet.

Postcondition

pkt contains LpPacket.

LpPitToken_ToString()

const char* LpPitToken_ToString

(

const LpPitToken *

token

)

Print PIT token as string for logging.

Returns

see DebugString_Get