diff options
Diffstat (limited to 'mdk-stage1/ppp/include/linux/ppp-comp.h')
| -rw-r--r-- | mdk-stage1/ppp/include/linux/ppp-comp.h | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/mdk-stage1/ppp/include/linux/ppp-comp.h b/mdk-stage1/ppp/include/linux/ppp-comp.h deleted file mode 100644 index 3184d0731..000000000 --- a/mdk-stage1/ppp/include/linux/ppp-comp.h +++ /dev/null @@ -1,203 +0,0 @@ -/* - * ppp-comp.h - Definitions for doing PPP packet compression. - * - * Copyright (c) 1994 The Australian National University. - * All rights reserved. - * - * Permission to use, copy, modify, and distribute this software and its - * documentation is hereby granted, provided that the above copyright - * notice appears in all copies. This software is provided without any - * warranty, express or implied. The Australian National University - * makes no representations about the suitability of this software for - * any purpose. - * - * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY - * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF - * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS - * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO - * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, - * OR MODIFICATIONS. - * - * $Id$ - */ - -/* - * ==FILEVERSION 980319== - * - * NOTE TO MAINTAINERS: - * If you modify this file at all, please set the above date. - * ppp-comp.h is shipped with a PPP distribution as well as with the kernel; - * if everyone increases the FILEVERSION number above, then scripts - * can do the right thing when deciding whether to install a new ppp-comp.h - * file. Don't change the format of that line otherwise, so the - * installation script can recognize it. - */ - -#ifndef _NET_PPP_COMP_H -#define _NET_PPP_COMP_H - -/* - * 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); -}; - -/* - * 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. */ - -/* - * CCP codes. - */ - -#define CCP_CONFREQ 1 -#define CCP_CONFACK 2 -#define CCP_TERMREQ 5 -#define CCP_TERMACK 6 -#define CCP_RESETREQ 14 -#define CCP_RESETACK 15 - -/* - * Max # bytes for a CCP option - */ - -#define CCP_MAX_OPTION_LENGTH 32 - -/* - * Parts of a CCP packet. - */ - -#define CCP_CODE(dp) ((dp)[0]) -#define CCP_ID(dp) ((dp)[1]) -#define CCP_LENGTH(dp) (((dp)[2] << 8) + (dp)[3]) -#define CCP_HDRLEN 4 - -#define CCP_OPT_CODE(dp) ((dp)[0]) -#define CCP_OPT_LENGTH(dp) ((dp)[1]) -#define CCP_OPT_MINLEN 2 - -/* - * Definitions for BSD-Compress. - */ - -#define CI_BSD_COMPRESS 21 /* config. option for BSD-Compress */ -#define CILEN_BSD_COMPRESS 3 /* length of config. option */ - -/* Macros for handling the 3rd byte of the BSD-Compress config option. */ -#define BSD_NBITS(x) ((x) & 0x1F) /* number of bits requested */ -#define BSD_VERSION(x) ((x) >> 5) /* version of option format */ -#define BSD_CURRENT_VERSION 1 /* current version number */ -#define BSD_MAKE_OPT(v, n) (((v) << 5) | (n)) - -#define BSD_MIN_BITS 9 /* smallest code size supported */ -#define BSD_MAX_BITS 15 /* largest code size supported */ - -/* - * Definitions for Deflate. - */ - -#define CI_DEFLATE 26 /* config option for Deflate */ -#define CI_DEFLATE_DRAFT 24 /* value used in original draft RFC */ -#define CILEN_DEFLATE 4 /* length of its config option */ - -#define DEFLATE_MIN_SIZE 8 -#define DEFLATE_MAX_SIZE 15 -#define DEFLATE_METHOD_VAL 8 -#define DEFLATE_SIZE(x) (((x) >> 4) + DEFLATE_MIN_SIZE) -#define DEFLATE_METHOD(x) ((x) & 0x0F) -#define DEFLATE_MAKE_OPT(w) ((((w) - DEFLATE_MIN_SIZE) << 4) \ - + DEFLATE_METHOD_VAL) -#define DEFLATE_CHK_SEQUENCE 0 - -/* - * Definitions for other, as yet unsupported, compression methods. - */ - -#define CI_PREDICTOR_1 1 /* config option for Predictor-1 */ -#define CILEN_PREDICTOR_1 2 /* length of its config option */ -#define CI_PREDICTOR_2 2 /* config option for Predictor-2 */ -#define CILEN_PREDICTOR_2 2 /* length of its config option */ - -#ifdef __KERNEL__ -extern int ppp_register_compressor(struct compressor *); -extern void ppp_unregister_compressor(struct compressor *); -#endif /* __KERNEL__ */ - -#endif /* _NET_PPP_COMP_H */ |