1 /* $FreeBSD$ */ 2 /* $OpenBSD: deflate.h,v 1.3 2002/03/14 01:26:51 millert Exp $ */ 3 4 /*- 5 * Copyright (c) 2001 Jean-Jacques Bernard-Gundol (jj@wabbitt.org) 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * Definition for the wrapper around the deflate compression 33 * algorithm used in /sys/crypto 34 */ 35 36 #ifndef _CRYPTO_DEFLATE_H_ 37 #define _CRYPTO_DEFLATE_H_ 38 39 #include <sys/zlib.h> 40 41 #define Z_METHOD 8 42 #define Z_MEMLEVEL 8 43 #define MINCOMP 2 /* won't be used, but must be defined */ 44 #define ZBUF 10 45 46 u_int32_t deflate_global(u_int8_t *, u_int32_t, int, u_int8_t **); 47 void *z_alloc(void *, u_int, u_int); 48 void z_free(void *, void *); 49 50 /* 51 * We are going to use a combined allocation to hold the metadata 52 * from the struct immediately followed by the real application data. 53 */ 54 struct deflate_buf { 55 struct deflate_buf *next; 56 uint32_t size; 57 uint8_t data[]; 58 }; 59 60 #endif /* _CRYPTO_DEFLATE_H_ */ 61