diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/cryptodev.h')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/cryptodev.h | 479 |
1 files changed, 479 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/cryptodev.h b/target/linux/generic/files/crypto/ocf/cryptodev.h new file mode 100644 index 000000000..60323175f --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/cryptodev.h @@ -0,0 +1,479 @@ +/* $FreeBSD: src/sys/opencrypto/cryptodev.h,v 1.25 2007/05/09 19:37:02 gnn Exp $ */ +/* $OpenBSD: cryptodev.h,v 1.31 2002/06/11 11:14:29 beck Exp $ */ + +/*- + * Linux port done by David McCullough <david_mccullough@mcafee.com> + * Copyright (C) 2006-2010 David McCullough + * Copyright (C) 2004-2005 Intel Corporation. + * The license and original author are listed below. + * + * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu) + * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting + * + * This code was written by Angelos D. Keromytis in Athens, Greece, in + * February 2000. Network Security Technologies Inc. (NSTI) kindly + * supported the development of this code. + * + * Copyright (c) 2000 Angelos D. Keromytis + * + * Permission to use, copy, and modify this software with or without fee + * is hereby granted, provided that this entire notice is included in + * all source code copies of any software which is or includes a copy or + * modification of this software. + * + * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY + * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE + * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR + * PURPOSE. + * + * Copyright (c) 2001 Theo de Raadt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Effort sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F30602-01-2-0537. + * + */ + +#ifndef _CRYPTO_CRYPTO_H_ +#define _CRYPTO_CRYPTO_H_ + +/* Some initial values */ +#define CRYPTO_DRIVERS_INITIAL 4 +#define CRYPTO_SW_SESSIONS 32 + +/* Hash values */ +#define NULL_HASH_LEN 0 +#define MD5_HASH_LEN 16 +#define SHA1_HASH_LEN 20 +#define RIPEMD160_HASH_LEN 20 +#define SHA2_256_HASH_LEN 32 +#define SHA2_384_HASH_LEN 48 +#define SHA2_512_HASH_LEN 64 +#define MD5_KPDK_HASH_LEN 16 +#define SHA1_KPDK_HASH_LEN 20 +/* Maximum hash algorithm result length */ +#define HASH_MAX_LEN SHA2_512_HASH_LEN /* Keep this updated */ + +/* HMAC values */ +#define NULL_HMAC_BLOCK_LEN 1 +#define MD5_HMAC_BLOCK_LEN 64 +#define SHA1_HMAC_BLOCK_LEN 64 +#define RIPEMD160_HMAC_BLOCK_LEN 64 +#define SHA2_256_HMAC_BLOCK_LEN 64 +#define SHA2_384_HMAC_BLOCK_LEN 128 +#define SHA2_512_HMAC_BLOCK_LEN 128 +/* Maximum HMAC block length */ +#define HMAC_MAX_BLOCK_LEN SHA2_512_HMAC_BLOCK_LEN /* Keep this updated */ +#define HMAC_IPAD_VAL 0x36 +#define HMAC_OPAD_VAL 0x5C + +/* Encryption algorithm block sizes */ +#define NULL_BLOCK_LEN 1 +#define DES_BLOCK_LEN 8 +#define DES3_BLOCK_LEN 8 +#define BLOWFISH_BLOCK_LEN 8 +#define SKIPJACK_BLOCK_LEN 8 +#define CAST128_BLOCK_LEN 8 +#define RIJNDAEL128_BLOCK_LEN 16 +#define AES_BLOCK_LEN RIJNDAEL128_BLOCK_LEN +#define CAMELLIA_BLOCK_LEN 16 +#define ARC4_BLOCK_LEN 1 +#define EALG_MAX_BLOCK_LEN AES_BLOCK_LEN /* Keep this updated */ + +/* Encryption algorithm min and max key sizes */ +#define NULL_MIN_KEY_LEN 0 +#define NULL_MAX_KEY_LEN 0 +#define DES_MIN_KEY_LEN 8 +#define DES_MAX_KEY_LEN 8 +#define DES3_MIN_KEY_LEN 24 +#define DES3_MAX_KEY_LEN 24 +#define BLOWFISH_MIN_KEY_LEN 4 +#define BLOWFISH_MAX_KEY_LEN 56 +#define SKIPJACK_MIN_KEY_LEN 10 +#define SKIPJACK_MAX_KEY_LEN 10 +#define CAST128_MIN_KEY_LEN 5 +#define CAST128_MAX_KEY_LEN 16 +#define RIJNDAEL128_MIN_KEY_LEN 16 +#define RIJNDAEL128_MAX_KEY_LEN 32 +#define AES_MIN_KEY_LEN RIJNDAEL128_MIN_KEY_LEN +#define AES_MAX_KEY_LEN RIJNDAEL128_MAX_KEY_LEN +#define CAMELLIA_MIN_KEY_LEN 16 +#define CAMELLIA_MAX_KEY_LEN 32 +#define ARC4_MIN_KEY_LEN 1 +#define ARC4_MAX_KEY_LEN 256 + +/* Max size of data that can be processed */ +#define CRYPTO_MAX_DATA_LEN 64*1024 - 1 + +#define CRYPTO_ALGORITHM_MIN 1 +#define CRYPTO_DES_CBC 1 +#define CRYPTO_3DES_CBC 2 +#define CRYPTO_BLF_CBC 3 +#define CRYPTO_CAST_CBC 4 +#define CRYPTO_SKIPJACK_CBC 5 +#define CRYPTO_MD5_HMAC 6 +#define CRYPTO_SHA1_HMAC 7 +#define CRYPTO_RIPEMD160_HMAC 8 +#define CRYPTO_MD5_KPDK 9 +#define CRYPTO_SHA1_KPDK 10 +#define CRYPTO_RIJNDAEL128_CBC 11 /* 128 bit blocksize */ +#define CRYPTO_AES_CBC 11 /* 128 bit blocksize -- the same as above */ +#define CRYPTO_ARC4 12 +#define CRYPTO_MD5 13 +#define CRYPTO_SHA1 14 +#define CRYPTO_NULL_HMAC 15 +#define CRYPTO_NULL_CBC 16 +#define CRYPTO_DEFLATE_COMP 17 /* Deflate compression algorithm */ +#define CRYPTO_SHA2_256_HMAC 18 +#define CRYPTO_SHA2_384_HMAC 19 +#define CRYPTO_SHA2_512_HMAC 20 +#define CRYPTO_CAMELLIA_CBC 21 +#define CRYPTO_SHA2_256 22 +#define CRYPTO_SHA2_384 23 +#define CRYPTO_SHA2_512 24 +#define CRYPTO_RIPEMD160 25 +#define CRYPTO_ALGORITHM_MAX 25 /* Keep updated - see below */ + +/* Algorithm flags */ +#define CRYPTO_ALG_FLAG_SUPPORTED 0x01 /* Algorithm is supported */ +#define CRYPTO_ALG_FLAG_RNG_ENABLE 0x02 /* Has HW RNG for DH/DSA */ +#define CRYPTO_ALG_FLAG_DSA_SHA 0x04 /* Can do SHA on msg */ + +/* + * Crypto driver/device flags. They can set in the crid + * parameter when creating a session or submitting a key + * op to affect the device/driver assigned. If neither + * of these are specified then the crid is assumed to hold + * the driver id of an existing (and suitable) device that + * must be used to satisfy the request. + */ +#define CRYPTO_FLAG_HARDWARE 0x01000000 /* hardware accelerated */ +#define CRYPTO_FLAG_SOFTWARE 0x02000000 /* software implementation */ + +/* NB: deprecated */ +struct session_op { + u_int32_t cipher; /* ie. CRYPTO_DES_CBC */ + u_int32_t mac; /* ie. CRYPTO_MD5_HMAC */ + + u_int32_t keylen; /* cipher key */ + caddr_t key; + int mackeylen; /* mac key */ + caddr_t mackey; + + u_int32_t ses; /* returns: session # */ +}; + +struct session2_op { + u_int32_t cipher; /* ie. CRYPTO_DES_CBC */ + u_int32_t mac; /* ie. CRYPTO_MD5_HMAC */ + + u_int32_t keylen; /* cipher key */ + caddr_t key; + int mackeylen; /* mac key */ + caddr_t mackey; + + u_int32_t ses; /* returns: session # */ + int crid; /* driver id + flags (rw) */ + int pad[4]; /* for future expansion */ +}; + +struct crypt_op { + u_int32_t ses; + u_int16_t op; /* i.e. COP_ENCRYPT */ +#define COP_NONE 0 +#define COP_ENCRYPT 1 +#define COP_DECRYPT 2 + u_int16_t flags; +#define COP_F_BATCH 0x0008 /* Batch op if possible */ + u_int len; + caddr_t src, dst; /* become iov[] inside kernel */ + caddr_t mac; /* must be big enough for chosen MAC */ + caddr_t iv; +}; + +/* + * Parameters for looking up a crypto driver/device by + * device name or by id. The latter are returned for + * created sessions (crid) and completed key operations. + */ +struct crypt_find_op { + int crid; /* driver id + flags */ + char name[32]; /* device/driver name */ +}; + +/* bignum parameter, in packed bytes, ... */ +struct crparam { + caddr_t crp_p; + u_int crp_nbits; +}; + +#define CRK_MAXPARAM 8 + +struct crypt_kop { + u_int crk_op; /* ie. CRK_MOD_EXP or other */ + u_int crk_status; /* return status */ + u_short crk_iparams; /* # of input parameters */ + u_short crk_oparams; /* # of output parameters */ + u_int crk_crid; /* NB: only used by CIOCKEY2 (rw) */ + struct crparam crk_param[CRK_MAXPARAM]; +}; +#define CRK_ALGORITM_MIN 0 +#define CRK_MOD_EXP 0 +#define CRK_MOD_EXP_CRT 1 +#define CRK_DSA_SIGN 2 +#define CRK_DSA_VERIFY 3 +#define CRK_DH_COMPUTE_KEY 4 +#define CRK_ALGORITHM_MAX 4 /* Keep updated - see below */ + +#define CRF_MOD_EXP (1 << CRK_MOD_EXP) +#define CRF_MOD_EXP_CRT (1 << CRK_MOD_EXP_CRT) +#define CRF_DSA_SIGN (1 << CRK_DSA_SIGN) +#define CRF_DSA_VERIFY (1 << CRK_DSA_VERIFY) +#define CRF_DH_COMPUTE_KEY (1 << CRK_DH_COMPUTE_KEY) + +/* + * done against open of /dev/crypto, to get a cloned descriptor. + * Please use F_SETFD against the cloned descriptor. + */ +#define CRIOGET _IOWR('c', 100, u_int32_t) +#define CRIOASYMFEAT CIOCASYMFEAT +#define CRIOFINDDEV CIOCFINDDEV + +/* the following are done against the cloned descriptor */ +#define CIOCGSESSION _IOWR('c', 101, struct session_op) +#define CIOCFSESSION _IOW('c', 102, u_int32_t) +#define CIOCCRYPT _IOWR('c', 103, struct crypt_op) +#define CIOCKEY _IOWR('c', 104, struct crypt_kop) +#define CIOCASYMFEAT _IOR('c', 105, u_int32_t) +#define CIOCGSESSION2 _IOWR('c', 106, struct session2_op) +#define CIOCKEY2 _IOWR('c', 107, struct crypt_kop) +#define CIOCFINDDEV _IOWR('c', 108, struct crypt_find_op) + +struct cryptotstat { + struct timespec acc; /* total accumulated time */ + struct timespec min; /* min time */ + struct timespec max; /* max time */ + u_int32_t count; /* number of observations */ +}; + +struct cryptostats { + u_int32_t cs_ops; /* symmetric crypto ops submitted */ + u_int32_t cs_errs; /* symmetric crypto ops that failed */ + u_int32_t cs_kops; /* asymetric/key ops submitted */ + u_int32_t cs_kerrs; /* asymetric/key ops that failed */ + u_int32_t cs_intrs; /* crypto swi thread activations */ + u_int32_t cs_rets; /* crypto return thread activations */ + u_int32_t cs_blocks; /* symmetric op driver block */ + u_int32_t cs_kblocks; /* symmetric op driver block */ + /* + * When CRYPTO_TIMING is defined at compile time and the + * sysctl debug.crypto is set to 1, the crypto system will + * accumulate statistics about how long it takes to process + * crypto requests at various points during processing. + */ + struct cryptotstat cs_invoke; /* crypto_dipsatch -> crypto_invoke */ + struct cryptotstat cs_done; /* crypto_invoke -> crypto_done */ + struct cryptotstat cs_cb; /* crypto_done -> callback */ + struct cryptotstat cs_finis; /* callback -> callback return */ + + u_int32_t cs_drops; /* crypto ops dropped due to congestion */ +}; + +#ifdef __KERNEL__ + +/* Standard initialization structure beginning */ +struct cryptoini { + int cri_alg; /* Algorithm to use */ + int cri_klen; /* Key length, in bits */ + int cri_mlen; /* Number of bytes we want from the + entire hash. 0 means all. */ + caddr_t cri_key; /* key to use */ + u_int8_t cri_iv[EALG_MAX_BLOCK_LEN]; /* IV to use */ + struct cryptoini *cri_next; +}; + +/* Describe boundaries of a single crypto operation */ +struct cryptodesc { + int crd_skip; /* How many bytes to ignore from start */ + int crd_len; /* How many bytes to process */ + int crd_inject; /* Where to inject results, if applicable */ + int crd_flags; + +#define CRD_F_ENCRYPT 0x01 /* Set when doing encryption */ +#define CRD_F_IV_PRESENT 0x02 /* When encrypting, IV is already in + place, so don't copy. */ +#define CRD_F_IV_EXPLICIT 0x04 /* IV explicitly provided */ +#define CRD_F_DSA_SHA_NEEDED 0x08 /* Compute SHA-1 of buffer for DSA */ +#define CRD_F_KEY_EXPLICIT 0x10 /* Key explicitly provided */ +#define CRD_F_COMP 0x0f /* Set when doing compression */ + + struct cryptoini CRD_INI; /* Initialization/context data */ +#define crd_iv CRD_INI.cri_iv +#define crd_key CRD_INI.cri_key +#define crd_alg CRD_INI.cri_alg +#define crd_klen CRD_INI.cri_klen +#define crd_mlen CRD_INI.cri_mlen + + struct cryptodesc *crd_next; +}; + +/* Structure describing complete operation */ +struct cryptop { + struct list_head crp_next; + wait_queue_head_t crp_waitq; + + u_int64_t crp_sid; /* Session ID */ + int crp_ilen; /* Input data total length */ + int crp_olen; /* Result total length */ + + int crp_etype; /* + * Error type (zero means no error). + * All error codes except EAGAIN + * indicate possible data corruption (as in, + * the data have been touched). On all + * errors, the crp_sid may have changed + * (reset to a new one), so the caller + * should always check and use the new + * value on future requests. + */ + int crp_flags; + +#define CRYPTO_F_SKBUF 0x0001 /* Input/output are skbuf chains */ +#define CRYPTO_F_IOV 0x0002 /* Input/output are uio */ +#define CRYPTO_F_REL 0x0004 /* Must return data in same place */ +#define CRYPTO_F_BATCH 0x0008 /* Batch op if possible */ +#define CRYPTO_F_CBIMM 0x0010 /* Do callback immediately */ +#define CRYPTO_F_DONE 0x0020 /* Operation completed */ +#define CRYPTO_F_CBIFSYNC 0x0040 /* Do CBIMM if op is synchronous */ + + caddr_t crp_buf; /* Data to be processed */ + caddr_t crp_opaque; /* Opaque pointer, passed along */ + struct cryptodesc *crp_desc; /* Linked list of processing descriptors */ + + int (*crp_callback)(struct cryptop *); /* Callback function */ +}; + +#define CRYPTO_BUF_CONTIG 0x0 +#define CRYPTO_BUF_IOV 0x1 +#define CRYPTO_BUF_SKBUF 0x2 + +#define CRYPTO_OP_DECRYPT 0x0 +#define CRYPTO_OP_ENCRYPT 0x1 + +/* + * Hints passed to process methods. + */ +#define CRYPTO_HINT_MORE 0x1 /* more ops coming shortly */ + +struct cryptkop { + struct list_head krp_next; + wait_queue_head_t krp_waitq; + + int krp_flags; +#define CRYPTO_KF_DONE 0x0001 /* Operation completed */ +#define CRYPTO_KF_CBIMM 0x0002 /* Do callback immediately */ + + u_int krp_op; /* ie. CRK_MOD_EXP or other */ + u_int krp_status; /* return status */ + u_short krp_iparams; /* # of input parameters */ + u_short krp_oparams; /* # of output parameters */ + u_int krp_crid; /* desired device, etc. */ + u_int32_t krp_hid; + struct crparam krp_param[CRK_MAXPARAM]; /* kvm */ + int (*krp_callback)(struct cryptkop *); +}; + +#include <ocf-compat.h> + +/* + * Session ids are 64 bits. The lower 32 bits contain a "local id" which + * is a driver-private session identifier. The upper 32 bits contain a + * "hardware id" used by the core crypto code to identify the driver and + * a copy of the driver's capabilities that can be used by client code to + * optimize operation. + */ +#define CRYPTO_SESID2HID(_sid) (((_sid) >> 32) & 0x00ffffff) +#define CRYPTO_SESID2CAPS(_sid) (((_sid) >> 32) & 0xff000000) +#define CRYPTO_SESID2LID(_sid) (((u_int32_t) (_sid)) & 0xffffffff) + +extern int crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int hard); +extern int crypto_freesession(u_int64_t sid); +#define CRYPTOCAP_F_HARDWARE CRYPTO_FLAG_HARDWARE +#define CRYPTOCAP_F_SOFTWARE CRYPTO_FLAG_SOFTWARE +#define CRYPTOCAP_F_SYNC 0x04000000 /* operates synchronously */ +extern int32_t crypto_get_driverid(device_t dev, int flags); +extern int crypto_find_driver(const char *); +extern device_t crypto_find_device_byhid(int hid); +extern int crypto_getcaps(int hid); +extern int crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen, + u_int32_t flags); +extern int crypto_kregister(u_int32_t, int, u_int32_t); +extern int crypto_unregister(u_int32_t driverid, int alg); +extern int crypto_unregister_all(u_int32_t driverid); +extern int crypto_dispatch(struct cryptop *crp); +extern int crypto_kdispatch(struct cryptkop *); +#define CRYPTO_SYMQ 0x1 +#define CRYPTO_ASYMQ 0x2 +extern int crypto_unblock(u_int32_t, int); +extern void crypto_done(struct cryptop *crp); +extern void crypto_kdone(struct cryptkop *); +extern int crypto_getfeat(int *); + +extern void crypto_freereq(struct cryptop *crp); +extern struct cryptop *crypto_getreq(int num); + +extern int crypto_usercrypto; /* userland may do crypto requests */ +extern int crypto_userasymcrypto; /* userland may do asym crypto reqs */ +extern int crypto_devallowsoft; /* only use hardware crypto */ + +/* + * random number support, crypto_unregister_all will unregister + */ +extern int crypto_rregister(u_int32_t driverid, + int (*read_random)(void *arg, u_int32_t *buf, int len), void *arg); +extern int crypto_runregister_all(u_int32_t driverid); + +/* + * Crypto-related utility routines used mainly by drivers. + * + * XXX these don't really belong here; but for now they're + * kept apart from the rest of the system. + */ +struct uio; +extern void cuio_copydata(struct uio* uio, int off, int len, caddr_t cp); +extern void cuio_copyback(struct uio* uio, int off, int len, caddr_t cp); +extern struct iovec *cuio_getptr(struct uio *uio, int loc, int *off); + +extern void crypto_copyback(int flags, caddr_t buf, int off, int size, + caddr_t in); +extern void crypto_copydata(int flags, caddr_t buf, int off, int size, + caddr_t out); +extern int crypto_apply(int flags, caddr_t buf, int off, int len, + int (*f)(void *, void *, u_int), void *arg); + +#endif /* __KERNEL__ */ +#endif /* _CRYPTO_CRYPTO_H_ */ |