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Diffstat (limited to '')
| -rw-r--r-- | private/ntos/ndis/ndiswan/compress.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/private/ntos/ndis/ndiswan/compress.h b/private/ntos/ndis/ndiswan/compress.h new file mode 100644 index 000000000..a5bd31c29 --- /dev/null +++ b/private/ntos/ndis/ndiswan/compress.h @@ -0,0 +1,187 @@ +//************************************************************************ +// Microsoft Corporation +// Copyright(c) Microsoft Corp., 1994 +// +// +// Revision history: +// 5/5/94 Created gurdeep +// +// This file uses 4 space tabs +//************************************************************************ + +#ifdef COMP_12K +#define HISTORY_SIZE 16000 +#else +#define HISTORY_SIZE (8192U) // Maximum back-pointer value, also used +#endif + +#define HISTORY_MAX (HISTORY_SIZE -1) // Maximum back-pointer value, also used + +#define HASH_TABLE_SIZE 4096 + +#define MAX_BACK_PTR 8511 + +#define MAX_COMPRESSFRAME_SIZE 1600 + +struct SendContext { + + UCHAR History [HISTORY_SIZE+1] ; + + int CurrentIndex ; // how far into the history buffer we are + + PUCHAR ValidHistory ; // how much of history is valid + + UCHAR CompressBuffer[MAX_COMPRESSFRAME_SIZE] ; + + USHORT HashTable[HASH_TABLE_SIZE]; + +} ; + +typedef struct SendContext SendContext ; + + +struct RecvContext { + + UCHAR History [HISTORY_SIZE+1] ; + +#if DBG + +#define DEBUG_FENCE_VALUE 0xABABABAB + ULONG DebugFence; + +#endif + + UCHAR *CurrentPtr ; // how far into the history buffer we are +} ; + +typedef struct RecvContext RecvContext ; + + +// Prototypes +// +UCHAR +compress ( + UCHAR *CurrentBuffer, + UCHAR *CompOutBuffer, + ULONG *CurrentLength, + SendContext *context); + +//UCHAR +//compress ( +// UCHAR *CurrentBuffer, +// ULONG *CurrentLength, +// SendContext *context); + +int +decompress ( + UCHAR *inbuf, + int inlen, + int start, + UCHAR **output, + int *outlen, + RecvContext *context) ; + +void getcontextsizes (long *, long *) ; + +void initsendcontext (SendContext *) ; + +void initrecvcontext (RecvContext *) ; + +NDIS_STATUS +InitSHAContext( + PENCRYPTION_INFO EncryptInfo + ); + +VOID +GetStartKeyFromSHA( + PENCRYPTION_INFO EncryptInfo, + PUCHAR Challenge + ); + +VOID +GetNewKeyFromSHA( + PENCRYPTION_INFO EncryptInfo + ); + + +// +// Other defines +// + +#define COMPRESSION_PADDING 4 + +#define PACKET_FLUSHED 0x80 +#define PACKET_AT_FRONT 0x40 +#define PACKET_COMPRESSED 0x20 +#define PACKET_ENCRYPTED 0x10 + + +/* Copyright (C) RSA Data Security, Inc. created 1993. This is an + unpublished work protected as such under copyright law. This work + contains proprietary, confidential, and trade secret information of + RSA Data Security, Inc. Use, disclosure or reproduction without the + express written authorization of RSA Data Security, Inc. is + prohibited. + */ + +#define A_SHA_DIGEST_LEN 20 + +typedef struct { + ULONG state[5]; /* state (ABCDE) */ + ULONG count[2]; /* number of UCHARs, msb first */ + unsigned char buffer[64]; /* input buffer */ +} A_SHA_COMM_CTX; + +typedef void (A_SHA_TRANSFORM) (ULONG [5], unsigned char [64]); + +void A_SHAInitCommon (A_SHA_COMM_CTX *); +void A_SHAUpdateCommon(A_SHA_COMM_CTX *, UCHAR *, ULONG, A_SHA_TRANSFORM *); +void A_SHAFinalCommon(A_SHA_COMM_CTX *, UCHAR[A_SHA_DIGEST_LEN], + A_SHA_TRANSFORM *); + +VOID ByteReverse(ULONG* Out, ULONG* In, ULONG Count); + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct { + ULONG FinishFlag; + UCHAR HashVal[A_SHA_DIGEST_LEN]; + A_SHA_COMM_CTX commonContext; +} A_SHA_CTX; + +void A_SHAInit(A_SHA_CTX *); +void A_SHAUpdate(A_SHA_CTX *, unsigned char *, unsigned int); +void A_SHAFinal(A_SHA_CTX *, unsigned char [A_SHA_DIGEST_LEN]); + +#ifdef __cplusplus +} +#endif + + +/* F, G, H and I are basic SHA functions. + */ +#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) +#define G(x, y, z) ((x) ^ (y) ^ (z)) +#define H(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z))) +#define I(x, y, z) ((x) ^ (y) ^ (z)) + +/* ROTATE_LEFT rotates x left n bits. + */ +#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + +/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. + */ +#define ROUND(a, b, c, d, e, x, F, k) { \ + (e) += ROTATE_LEFT ((a), 5) + F ((b), (c), (d)) + (x) + k; \ + (b) = ROTATE_LEFT ((b), 30); \ + } +#define FF(a, b, c, d, e, x) ROUND (a, b, c, d, e, x, F, 0x5a827999); +#define GG(a, b, c, d, e, x) ROUND (a, b, c, d, e, x, G, 0x6ed9eba1); +#define HH(a, b, c, d, e, x) ROUND (a, b, c, d, e, x, H, 0x8f1bbcdc); +#define II(a, b, c, d, e, x) ROUND (a, b, c, d, e, x, I, 0xca62c1d6); + +void SHATransform(ULONG [5], unsigned char [64]); +void SHAExpand(ULONG [80]); + |