compcrypt.c File Reference

#include "evl.h"
#include "cryp.h"

Go to the source code of this file.

Functions
int	Ucode_CompressDecompress (Pkt_EthernetHdr_t *pkt, int length, bool doCompress)
	Compress/decompress a packet - changes argument, assumes enough memory has been allocated in the packet itself. Leaves only the ethernet header uncompressed. Using the LZO algorithm on a single packet at a time.
int	Ucode_Decompress (Evl_Manager_t *mgr, Pkt_ProcessPkt_t *pp, void **functionStatePtr)
	Decompress a packet.
int	Ucode_Compress (Evl_Manager_t *mgr, Pkt_ProcessPkt_t *pp, void **functionStatePtr)
	Compress a packet.
void	Ucode_Crypto (Cryp_Aes_t *aes, Pkt_ProcessPkt_t *pp, boolean doEncrypt)
	Encrypt a packet.
void	Ucode_EncryptPkt (Evl_Manager_t *mgr, Pkt_ProcessPkt_t *pp, void **functionStatePtr, void *functionArgument)
	Encrypt a packet.
void	Ucode_DecryptPkt (Evl_Manager_t *mgr, Pkt_ProcessPkt_t *pp, void **functionStatePtr, void *functionArgument)
	Decrypt a packet.
int	decrypt (Evl_Manager_t *mgr, Pkt_ProcessPkt_t *pp, void **functionStatePtr, void *functionArgument)
	Decrypt a packet.
int	encrypt (Evl_Manager_t *mgr, Pkt_ProcessPkt_t *pp, void **functionStatePtr, void *functionArgument)
	Encrypt a packet.

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Function Documentation

int decrypt	(	Evl_Manager_t *	mgr,
		Pkt_ProcessPkt_t *	pp,
		void **	functionStatePtr,
		void *	functionArgument
	)

Decrypt a packet.

Directly calls the function Ucode_DecryptPkt - we need to do it this way to be able to export the name decrypt to the sheel

Definition at line 222 of file compcrypt.c.

int encrypt	(	Evl_Manager_t *	mgr,
		Pkt_ProcessPkt_t *	pp,
		void **	functionStatePtr,
		void *	functionArgument
	)

Encrypt a packet.

Directly calls the function Ucode_EncryptPkt - we need to do it this way to be able to export the name encrypt to the shell

Definition at line 240 of file compcrypt.c.

int Ucode_Compress	(	Evl_Manager_t *	mgr,
		Pkt_ProcessPkt_t *	pp,
		void **	functionStatePtr
	)

Compress a packet.

Assuming packet is IP - in particular we set a new ethernet type field to denote the packet is compressed, and to revert we must know what the orig type was. (Perhaps we can play tricks with setting a single bit?)

will change with jumbo frames. see discussion about max increase in pkt size with lzo here http://www.oberhumer.com/opensource/lzo/lzofaq.php

Definition at line 91 of file compcrypt.c.

int Ucode_CompressDecompress	(	Pkt_EthernetHdr_t *	pkt,
		int	length,
		bool	doCompress
	)

Compress/decompress a packet - changes argument, assumes enough memory has been allocated in the packet itself. Leaves only the ethernet header uncompressed. Using the LZO algorithm on a single packet at a time.

function prototype action->ucodeFunction( mgr, pp, & action->ucodeFunctionState );

Definition at line 33 of file compcrypt.c.

void Ucode_Crypto	(	Cryp_Aes_t *	aes,
		Pkt_ProcessPkt_t *	pp,
		boolean	doEncrypt
	)

Encrypt a packet.

Only for Ip packets. Keeps header intact, does aes on payload. Not going to encrypt payload shorter than 16 bytes.

Returns 1 on succ encrypt, 0 on payload being too short.

Definition at line 133 of file compcrypt.c.

int Ucode_Decompress	(	Evl_Manager_t *	mgr,
		Pkt_ProcessPkt_t *	pp,
		void **	functionStatePtr
	)

Decompress a packet.

Definition at line 63 of file compcrypt.c.

void Ucode_DecryptPkt	(	Evl_Manager_t *	mgr,
		Pkt_ProcessPkt_t *	pp,
		void **	functionStatePtr,
		void *	functionArgument
	)

Decrypt a packet.

Definition at line 202 of file compcrypt.c.

void Ucode_EncryptPkt	(	Evl_Manager_t *	mgr,
		Pkt_ProcessPkt_t *	pp,
		void **	functionStatePtr,
		void *	functionArgument
	)

Encrypt a packet.

Definition at line 160 of file compcrypt.c.