36ea3668b9
Extends the Opencrypto API to allow the destination buffer size to be specified when its not the same size as the input buffer (i.e. for operations like compress and decompress). The crypto_op and crypt_n_op structures gain a u_int dst_len field. The session_op structure gains a comp_alg field to specify a compression algorithm. Moved four ioctls to new ids; CIOCGSESSION, CIOCNGSESSION, CIOCCRYPT, and CIOCNCRYPTM. Added four backward compatible ioctls; OCIOCGSESSION, OCIOCNGSESSION, OCIOCCRYPT, and OCIOCNCRYPTM. Backward compatibility is maintained in ocryptodev.h and ocryptodev.c which implement the original ioctls and set dst_len and comp_alg to 0. Adds user-space access to compression features. Adds software gzip support (CRYPTO_GZIP_COMP). Adds the fast version of crc32 from zlib to libkern. This should be generally useful and provide a place to start normalizing the various crc32 routines in the kernel. The crc32 routine is used in this patch to support GZIP. With input and support from tls@NetBSD.org.
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* $NetBSD: cryptosoft.h,v 1.6 2009/03/25 01:26:13 darran Exp $ */
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/* $OpenBSD: cryptosoft.h,v 1.10 2002/04/22 23:10:09 deraadt Exp $ */
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/*
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* The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
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*
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* This code was written by Angelos D. Keromytis in Athens, Greece, in
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* February 2000. Network Security Technologies Inc. (NSTI) kindly
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* supported the development of this code.
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*
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* Copyright (c) 2000 Angelos D. Keromytis
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*
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* Permission to use, copy, and modify this software with or without fee
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* is hereby granted, provided that this entire notice is included in
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* all source code copies of any software which is or includes a copy or
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* modification of this software.
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*
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* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
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* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
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* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
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* PURPOSE.
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*/
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#ifndef _CRYPTO_CRYPTOSOFT_H_
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#define _CRYPTO_CRYPTOSOFT_H_
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/* Software session entry */
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struct swcr_data {
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int sw_alg; /* Algorithm */
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union {
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struct {
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u_int8_t *SW_ictx;
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u_int8_t *SW_octx;
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u_int32_t SW_klen;
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const struct swcr_auth_hash *SW_axf;
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} SWCR_AUTH;
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struct {
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u_int8_t *SW_kschedule;
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const struct swcr_enc_xform *SW_exf;
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} SWCR_ENC;
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struct {
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u_int32_t SW_size;
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u_int32_t SW_crc;
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const struct swcr_comp_algo *SW_cxf;
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} SWCR_COMP;
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} SWCR_UN;
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#define sw_ictx SWCR_UN.SWCR_AUTH.SW_ictx
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#define sw_octx SWCR_UN.SWCR_AUTH.SW_octx
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#define sw_klen SWCR_UN.SWCR_AUTH.SW_klen
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#define sw_axf SWCR_UN.SWCR_AUTH.SW_axf
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#define sw_kschedule SWCR_UN.SWCR_ENC.SW_kschedule
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#define sw_exf SWCR_UN.SWCR_ENC.SW_exf
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#define sw_size SWCR_UN.SWCR_COMP.SW_size
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#define sw_cxf SWCR_UN.SWCR_COMP.SW_cxf
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struct swcr_data *sw_next;
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};
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#ifdef _KERNEL
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int swcr_authcompute(struct cryptop *crp, struct cryptodesc *crd,
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struct swcr_data *sw, void *buf, int outtype);
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#endif /* _KERNEL */
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#endif /* _CRYPTO_CRYPTO_H_ */
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