--- /dev/null
+/* $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@securecomputing.com>
+ * Copyright (C) 2006-2007 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
+
+ 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_ */
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