986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje/*
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * CDDL HEADER START
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje *
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * The contents of this file are subject to the terms of the
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * Common Development and Distribution License (the "License").
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * You may not use this file except in compliance with the License.
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje *
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * or http://www.opensolaris.org/os/licensing.
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * See the License for the specific language governing permissions
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * and limitations under the License.
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje *
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * When distributing Covered Code, include this CDDL HEADER in each
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * If applicable, add the following below this CDDL HEADER, with the
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * fields enclosed by brackets "[]" replaced with your own identifying
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * information: Portions Copyright [yyyy] [name of copyright owner]
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje *
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * CDDL HEADER END
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje */
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje/*
1d7f3fadeebf3754e3f042d91e7a4439755dc598Krishnendu Sadhukhan - Sun Microsystems * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje * Use is subject to license terms.
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje */
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#ifndef _SYS_DECOMP_H
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#define _SYS_DECOMP_H
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#ifdef __cplusplus
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setjeextern "C" {
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#endif
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
1d7f3fadeebf3754e3f042d91e7a4439755dc598Krishnendu Sadhukhan - Sun Microsystems#define CH_MAGIC_ZLIB 0x5a636d70 /* ZLIB compression */
1d7f3fadeebf3754e3f042d91e7a4439755dc598Krishnendu Sadhukhan - Sun Microsystems#define CH_MAGIC_GZIP 0x8B1F /* GZIP compression */
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#define CH_VERSION 1
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#define CH_ALG_ZLIB 1
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setjestruct comphdr {
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje uint64_t ch_magic;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje uint64_t ch_version;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje uint64_t ch_algorithm;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje uint64_t ch_fsize;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje uint64_t ch_blksize;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje uint64_t ch_blkmap[1];
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje};
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#define ZMAXBUF(n) ((n) + ((n) / 1000) + 12)
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#ifdef _KERNEL
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setjestruct dcnode {
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje struct vnode *dc_vp;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje struct vnode *dc_subvp;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje struct kmem_cache *dc_bufcache;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje kmutex_t dc_lock;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje struct dcnode *dc_hash;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje struct dcnode *dc_lrunext;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje struct dcnode *dc_lruprev;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje struct comphdr *dc_hdr;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje size_t dc_hdrsize;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje size_t dc_zmax;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje int dc_mapcnt;
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje};
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#define VTODC(vp) ((struct dcnode *)(vp)->v_data)
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#define DCTOV(dp) ((dp)->dc_vp)
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setjestruct vnode *decompvp(struct vnode *, struct cred *, caller_context_t *);
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#endif
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#ifdef __cplusplus
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje}
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#endif
986fd29a0dc13f7608ef7f508f6e700bd7bc2720setje#endif /* _SYS_DECOMP_H */