diff options
Diffstat (limited to 'sys/net/ppp-comp.h')
| -rw-r--r-- | sys/net/ppp-comp.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/sys/net/ppp-comp.h b/sys/net/ppp-comp.h index c8cb9a0fd94..77ab835f107 100644 --- a/sys/net/ppp-comp.h +++ b/sys/net/ppp-comp.h @@ -1,4 +1,4 @@ -/* $NetBSD: ppp-comp.h,v 1.1 1995/07/04 06:28:24 paulus Exp $ */ +/* $NetBSD: ppp-comp.h,v 1.2 1996/03/15 02:28:07 paulus Exp $ */ /* * ppp-comp.h - Definitions for doing PPP packet compression. @@ -26,7 +26,7 @@ * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, * OR MODIFICATIONS. * - * $Id: ppp-comp.h,v 1.1.1.1 1995/10/18 08:53:07 deraadt Exp $ + * $Id: ppp-comp.h,v 1.2 1996/04/21 22:28:40 deraadt Exp $ */ #ifndef _NET_PPP_COMP_H @@ -39,6 +39,11 @@ #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. @@ -135,4 +140,24 @@ struct compressor { #define BSD_MIN_BITS 9 /* smallest code size supported */ #define BSD_MAX_BITS 15 /* largest code size supported */ +/* + * 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 */ + +#define CI_DEFLATE 24 /* config option for Deflate */ +#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 + #endif /* _NET_PPP_COMP_H */ |