mirror of
https://github.com/Qortal/Brooklyn.git
synced 2025-02-15 03:35:55 +00:00
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/*
|
|
* ppp-comp.h - Definitions for doing PPP packet compression.
|
|
*
|
|
* Copyright 1994-1998 Paul Mackerras.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*/
|
|
#ifndef _NET_PPP_COMP_H
|
|
#define _NET_PPP_COMP_H
|
|
|
|
#include <uapi/linux/ppp-comp.h>
|
|
|
|
|
|
struct module;
|
|
|
|
/*
|
|
* The following symbols control whether we include code for
|
|
* various compression methods.
|
|
*/
|
|
|
|
#ifndef DO_BSD_COMPRESS
|
|
#define DO_BSD_COMPRESS 1 /* by default, include BSD-Compress */
|
|
#endif
|
|
#ifndef DO_DEFLATE
|
|
#define DO_DEFLATE 1 /* by default, include Deflate */
|
|
#endif
|
|
#define DO_PREDICTOR_1 0
|
|
#define DO_PREDICTOR_2 0
|
|
|
|
/*
|
|
* Structure giving methods for compression/decompression.
|
|
*/
|
|
|
|
struct compressor {
|
|
int compress_proto; /* CCP compression protocol number */
|
|
|
|
/* Allocate space for a compressor (transmit side) */
|
|
void *(*comp_alloc) (unsigned char *options, int opt_len);
|
|
|
|
/* Free space used by a compressor */
|
|
void (*comp_free) (void *state);
|
|
|
|
/* Initialize a compressor */
|
|
int (*comp_init) (void *state, unsigned char *options,
|
|
int opt_len, int unit, int opthdr, int debug);
|
|
|
|
/* Reset a compressor */
|
|
void (*comp_reset) (void *state);
|
|
|
|
/* Compress a packet */
|
|
int (*compress) (void *state, unsigned char *rptr,
|
|
unsigned char *obuf, int isize, int osize);
|
|
|
|
/* Return compression statistics */
|
|
void (*comp_stat) (void *state, struct compstat *stats);
|
|
|
|
/* Allocate space for a decompressor (receive side) */
|
|
void *(*decomp_alloc) (unsigned char *options, int opt_len);
|
|
|
|
/* Free space used by a decompressor */
|
|
void (*decomp_free) (void *state);
|
|
|
|
/* Initialize a decompressor */
|
|
int (*decomp_init) (void *state, unsigned char *options,
|
|
int opt_len, int unit, int opthdr, int mru,
|
|
int debug);
|
|
|
|
/* Reset a decompressor */
|
|
void (*decomp_reset) (void *state);
|
|
|
|
/* Decompress a packet. */
|
|
int (*decompress) (void *state, unsigned char *ibuf, int isize,
|
|
unsigned char *obuf, int osize);
|
|
|
|
/* Update state for an incompressible packet received */
|
|
void (*incomp) (void *state, unsigned char *ibuf, int icnt);
|
|
|
|
/* Return decompression statistics */
|
|
void (*decomp_stat) (void *state, struct compstat *stats);
|
|
|
|
/* Used in locking compressor modules */
|
|
struct module *owner;
|
|
/* Extra skb space needed by the compressor algorithm */
|
|
unsigned int comp_extra;
|
|
} __do_const;
|
|
|
|
/*
|
|
* The return value from decompress routine is the length of the
|
|
* decompressed packet if successful, otherwise DECOMP_ERROR
|
|
* or DECOMP_FATALERROR if an error occurred.
|
|
*
|
|
* We need to make this distinction so that we can disable certain
|
|
* useful functionality, namely sending a CCP reset-request as a result
|
|
* of an error detected after decompression. This is to avoid infringing
|
|
* a patent held by Motorola.
|
|
* Don't you just lurve software patents.
|
|
*/
|
|
|
|
#define DECOMP_ERROR -1 /* error detected before decomp. */
|
|
#define DECOMP_FATALERROR -2 /* error detected after decomp. */
|
|
|
|
extern int ppp_register_compressor(struct compressor *);
|
|
extern void ppp_unregister_compressor(struct compressor *);
|
|
#endif /* _NET_PPP_COMP_H */
|