43d2c595b1
in user space
Use the flag (COP_FLAG_UPDATE)structure member to mark
whether it is just input data.
like this:
can do manys times,just input data
....
cryp.ses = session.ses;
cryp.op = COP_ENCRYPT;
cryp.src = (caddr_t) s;
cryp.len = len;
cryp.flags = COP_FLAG_UPDATE;
cryp.dst = 0;
cryp.mac = (caddr_t) out;
cryp.iv = 0;
if (ioctl(cryptodev_fd, CIOCCRYPT, &cryp) == -1)
{
warn("CIOCCRYPT");
goto err;
}
can do manys times like frist...
then,the last time
Don't use any flay structure member to mark
this is last time,need get final result
....
cryp.ses = session.ses;
cryp.op = COP_ENCRYPT;
cryp.src = (caddr_t) s;
cryp.len = len;
cryp.flags = 0;
cryp.dst = 0;
cryp.mac = (caddr_t) out;
cryp.iv = 0;
if (ioctl(cryptodev_fd, CIOCCRYPT, &cryp) == -1)
{
warn("CIOCCRYPT");
goto err;
}
....
that will get last result.
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
367 lines
12 KiB
C
367 lines
12 KiB
C
/****************************************************************************
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* include/crypto/cryptodev.h
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* $OpenBSD: cryptodev.h,v 1.58 2013/10/31 10:32:38 mikeb Exp $
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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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* Copyright (c) 2001 Theo de Raadt
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Effort sponsored in part by the Defense Advanced Research Projects
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* Agency (DARPA) and Air Force Research Laboratory, Air Force
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* Materiel Command, USAF, under agreement number F30602-01-2-0537.
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*
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****************************************************************************/
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#ifndef __INCLUDE_CRYPTO_CRYPTODEV_H
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#define __INCLUDE_CRYPTO_CRYPTODEV_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/types.h>
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/* Some initial values */
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#define CRYPTO_DRIVERS_INITIAL 4
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#define CRYPTO_DRIVERS_MAX 128
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#define CRYPTO_SW_SESSIONS 32
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/* HMAC values */
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#define HMAC_MD5_BLOCK_LEN 64
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#define HMAC_SHA1_BLOCK_LEN 64
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#define HMAC_RIPEMD160_BLOCK_LEN 64
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#define HMAC_SHA2_256_BLOCK_LEN 64
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#define HMAC_SHA2_384_BLOCK_LEN 128
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#define HMAC_SHA2_512_BLOCK_LEN 128
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#define HMAC_MAX_BLOCK_LEN HMAC_SHA2_512_BLOCK_LEN
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/* keep in sync */
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#define HMAC_IPAD_VAL 0x36
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#define HMAC_OPAD_VAL 0x5C
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/* Encryption algorithm block sizes */
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#define DES_BLOCK_LEN 8
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#define DES3_BLOCK_LEN 8
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#define BLOWFISH_BLOCK_LEN 8
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#define CAST128_BLOCK_LEN 8
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#define RIJNDAEL128_BLOCK_LEN 16
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#define EALG_MAX_BLOCK_LEN 16
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/* Keep this updated */
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/* Maximum hash algorithm result length */
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#define AALG_MAX_RESULT_LEN 64 /* Keep this updated */
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#define CRYPTO_3DES_CBC 1
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#define CRYPTO_BLF_CBC 2
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#define CRYPTO_CAST_CBC 3
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#define CRYPTO_MD5_HMAC 4
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#define CRYPTO_SHA1_HMAC 5
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#define CRYPTO_RIPEMD160_HMAC 6
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#define CRYPTO_RIJNDAEL128_CBC 7 /* 128 bit blocksize */
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#define CRYPTO_AES_CBC 7 /* 128 bit blocksize -- the same as above */
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#define CRYPTO_DEFLATE_COMP 8 /* Deflate compression algorithm */
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#define CRYPTO_NULL 9
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#define CRYPTO_SHA2_256_HMAC 11
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#define CRYPTO_SHA2_384_HMAC 12
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#define CRYPTO_SHA2_512_HMAC 13
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#define CRYPTO_AES_CTR 14
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#define CRYPTO_AES_XTS 15
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#define CRYPTO_AES_GCM_16 16
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#define CRYPTO_AES_128_GMAC 17
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#define CRYPTO_AES_192_GMAC 18
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#define CRYPTO_AES_256_GMAC 19
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#define CRYPTO_AES_GMAC 20
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#define CRYPTO_CHACHA20_POLY1305 21
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#define CRYPTO_CHACHA20_POLY1305_MAC 22
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#define CRYPTO_ESN 23 /* Support for Extended Sequence Numbers */
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#define CRYPTO_ALGORITHM_MAX 23 /* Keep updated */
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/* Algorithm flags */
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#define CRYPTO_ALG_FLAG_SUPPORTED 0x01 /* Algorithm is supported */
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#define CRYPTO_ALG_FLAG_RNG_ENABLE 0x02 /* Has HW RNG for DH/DSA */
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#define CRYPTO_ALG_FLAG_DSA_SHA 0x04 /* Can do SHA on msg */
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/* Standard initialization structure beginning */
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struct cryptoini
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{
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int cri_alg; /* Algorithm to use */
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int cri_klen; /* Key length, in bits */
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int cri_rnd; /* Algorithm rounds, where relevant */
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caddr_t cri_key; /* key to use */
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union
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{
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uint8_t iv[EALG_MAX_BLOCK_LEN]; /* IV to use */
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uint8_t esn[4]; /* high-order ESN */
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} u;
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#define cri_iv u.iv
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#define cri_esn u.esn
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FAR struct cryptoini *cri_next;
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};
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/* Describe boundaries of a single crypto operation */
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struct cryptodesc
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{
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int crd_skip; /* How many bytes to ignore from start */
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int crd_len; /* How many bytes to process */
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int crd_inject; /* Where to inject results, if applicable */
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int crd_flags;
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#define CRD_F_ENCRYPT 0x01 /* Set when doing encryption */
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#define CRD_F_IV_PRESENT 0x02 /* When encrypting, IV is already in
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* place, so don't copy.
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*/
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#define CRD_F_IV_EXPLICIT 0x04 /* IV explicitly provided */
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#define CRD_F_COMP 0x10 /* Set when doing compression */
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#define CRD_F_ESN 0x20 /* Set when ESN field is provided */
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#define CRD_F_UPDATE 0x40 /* Set just update source */
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struct cryptoini CRD_INI; /* Initialization/context data */
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#define crd_esn CRD_INI.cri_esn
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#define crd_iv CRD_INI.cri_iv
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#define crd_key CRD_INI.cri_key
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#define crd_rnd CRD_INI.cri_rnd
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#define crd_alg CRD_INI.cri_alg
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#define crd_klen CRD_INI.cri_klen
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FAR struct cryptodesc *crd_next;
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};
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/* Structure describing complete operation */
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struct cryptop
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{
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uint64_t crp_sid; /* Session ID */
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int crp_ilen; /* Input data total length */
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int crp_olen; /* Result total length */
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int crp_alloctype; /* Type of buf to allocate if needed */
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int crp_etype; /* Error type (zero means no error).
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* All error codes except EAGAIN
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* indicate possible data corruption (as in,
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* the data have been touched). On all
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* errors, the crp_sid may have changed
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* (reset to a new one), so the caller
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* should always check and use the new
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* value on future requests.
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*/
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int crp_flags;
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#define CRYPTO_F_IMBUF 0x0001 /* Input/output are mbuf chains, otherwise contig */
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#define CRYPTO_F_IOV 0x0002 /* Input/output are uio */
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#define CRYPTO_F_REL 0x0004 /* Must return data in same place */
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#define CRYPTO_F_NOQUEUE 0x0008 /* Don't use crypto queue/thread */
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#define CRYPTO_F_DONE 0x0010 /* request completed */
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FAR void *crp_buf; /* Data to be processed */
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FAR void *crp_opaque; /* Opaque pointer, passed along */
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FAR struct cryptodesc *crp_desc; /* Linked list of processing descriptors */
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CODE int (*crp_callback)(FAR struct cryptop *); /* Callback function */
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caddr_t crp_mac;
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caddr_t crp_dst;
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};
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#define CRYPTO_BUF_IOV 0x1
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#define CRYPTO_BUF_MBUF 0x2
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#define CRYPTO_OP_DECRYPT 0x0
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#define CRYPTO_OP_ENCRYPT 0x1
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/* bignum parameter, in packed bytes, ... */
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struct crparam
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{
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caddr_t crp_p;
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u_int crp_nbits;
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};
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#define CRK_MAXPARAM 8
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struct crypt_kop
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{
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u_int crk_op; /* ie. CRK_MOD_EXP or other */
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u_int crk_status; /* return status */
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u_short crk_iparams; /* # of input parameters */
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u_short crk_oparams; /* # of output parameters */
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u_int crk_pad1;
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struct crparam crk_param[CRK_MAXPARAM];
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};
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#define CRK_MOD_EXP 0
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#define CRK_MOD_EXP_CRT 1
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#define CRK_DSA_SIGN 2
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#define CRK_DSA_VERIFY 3
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#define CRK_DH_COMPUTE_KEY 4
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#define CRK_ALGORITHM_MAX 4 /* Keep updated */
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#define CRF_MOD_EXP (1 << CRK_MOD_EXP)
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#define CRF_MOD_EXP_CRT (1 << CRK_MOD_EXP_CRT)
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#define CRF_DSA_SIGN (1 << CRK_DSA_SIGN)
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#define CRF_DSA_VERIFY (1 << CRK_DSA_VERIFY)
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#define CRF_DH_COMPUTE_KEY (1 << CRK_DH_COMPUTE_KEY)
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struct cryptkop
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{
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u_int krp_op; /* ie. CRK_MOD_EXP or other */
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u_int krp_status; /* return status */
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u_short krp_iparams; /* # of input parameters */
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u_short krp_oparams; /* # of output parameters */
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uint32_t krp_hid;
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struct crparam krp_param[CRK_MAXPARAM]; /* kvm */
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CODE int (*krp_callback)(FAR struct cryptkop *);
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};
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/* Crypto capabilities structure */
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struct cryptocap
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{
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uint64_t cc_operations; /* Counter of how many ops done */
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uint64_t cc_bytes; /* Counter of how many bytes done */
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uint64_t cc_koperations; /* How many PK ops done */
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uint32_t cc_sessions; /* How many sessions allocated */
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/* Symmetric/hash algorithms supported */
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int cc_alg[CRYPTO_ALGORITHM_MAX + 1];
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/* Asymmetric algorithms supported */
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int cc_kalg[CRK_ALGORITHM_MAX + 1];
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uint8_t cc_flags;
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#define CRYPTOCAP_F_CLEANUP 0x01
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#define CRYPTOCAP_F_SOFTWARE 0x02
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#define CRYPTOCAP_F_ENCRYPT_MAC 0x04 /* Can do encrypt-then-MAC (IPsec) */
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#define CRYPTOCAP_F_MAC_ENCRYPT 0x08 /* Can do MAC-then-encrypt (TLS) */
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CODE int (*cc_newsession)(FAR uint32_t *, FAR struct cryptoini *);
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CODE int (*cc_process)(FAR struct cryptop *);
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CODE int (*cc_freesession)(uint64_t);
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CODE int (*cc_kprocess)(FAR struct cryptkop *);
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};
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/* ioctl parameter to request creation of a session. */
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struct session_op
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{
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uint32_t cipher; /* ie. CRYPTO_AES_EBC */
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uint32_t mac;
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uint32_t keylen; /* cipher key */
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caddr_t key;
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int mackeylen; /* mac key */
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caddr_t mackey;
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uint32_t ses; /* returns: session # */
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};
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struct crypt_op
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{
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uint32_t ses;
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#define COP_ENCRYPT 1
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#define COP_DECRYPT 2
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uint16_t op; /* i.e. COP_ENCRYPT */
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#define COP_FLAG_UPDATE (1 << 0) /* Indicates that this operation is a
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* stream operation. This operation will not get
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* the final result of hash. If the iv is not equal,
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* only the iv initialized for the first time will
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* be used, and the subsequent iv will be saved
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* in the driver.
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*/
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uint16_t flags;
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unsigned len;
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caddr_t src, dst; /* become iov[] inside kernel */
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caddr_t mac; /* must be big enough for chosen MAC */
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caddr_t iv;
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};
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/* hamc buffer, software & hardware need it */
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extern const uint8_t hmac_ipad_buffer[HMAC_MAX_BLOCK_LEN];
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extern const uint8_t hmac_opad_buffer[HMAC_MAX_BLOCK_LEN];
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#define CRYPTO_MAX_MAC_LEN 20
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/* done against open of /dev/crypto, to get a cloned descriptor.
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* Please use F_SETFD against the cloned descriptor.
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*/
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#define CRIOGET 100
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/* the following are done against the cloned descriptor */
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#define CIOCGSESSION 101
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#define CIOCFSESSION 102
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#define CIOCCRYPT 103
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#define CIOCKEY 104
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#define CIOCASYMFEAT 105
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int crypto_newsession(FAR uint64_t *, FAR struct cryptoini *, int);
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int crypto_freesession(uint64_t);
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int crypto_register(uint32_t, FAR int *,
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CODE int (*)(uint32_t *, struct cryptoini *),
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CODE int (*)(uint64_t),
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CODE int (*)(FAR struct cryptop *));
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int crypto_kregister(uint32_t, FAR int *, CODE int (*)(struct cryptkop *));
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int crypto_unregister(uint32_t, int);
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int crypto_get_driverid(uint8_t);
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int crypto_invoke(FAR struct cryptop *);
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int crypto_kinvoke(FAR struct cryptkop *);
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int crypto_getfeat(FAR int *);
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FAR struct cryptop *crypto_getreq(int);
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void crypto_freereq(FAR struct cryptop *);
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#ifdef CONFIG_CRYPTO_CRYPTODEV_HARDWARE
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void hwcr_init(void);
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#endif
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#endif /* __INCLUDE_CRYPTO_CRYPTODEV_H */
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