g_eli.h revision 159307
1148456Spjd/*- 2148456Spjd * Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3148456Spjd * All rights reserved. 4148456Spjd * 5148456Spjd * Redistribution and use in source and binary forms, with or without 6148456Spjd * modification, are permitted provided that the following conditions 7148456Spjd * are met: 8148456Spjd * 1. Redistributions of source code must retain the above copyright 9148456Spjd * notice, this list of conditions and the following disclaimer. 10148456Spjd * 2. Redistributions in binary form must reproduce the above copyright 11148456Spjd * notice, this list of conditions and the following disclaimer in the 12148456Spjd * documentation and/or other materials provided with the distribution. 13155174Spjd * 14148456Spjd * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15148456Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16148456Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17148456Spjd * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18148456Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19148456Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20148456Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21148456Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22148456Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23148456Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24148456Spjd * SUCH DAMAGE. 25148456Spjd * 26148456Spjd * $FreeBSD: head/sys/geom/eli/g_eli.h 159307 2006-06-05 21:38:54Z pjd $ 27148456Spjd */ 28148456Spjd 29148456Spjd#ifndef _G_ELI_H_ 30148456Spjd#define _G_ELI_H_ 31148456Spjd 32148456Spjd#include <sys/endian.h> 33148456Spjd#include <sys/errno.h> 34148456Spjd#include <sys/malloc.h> 35148456Spjd#include <crypto/sha2/sha2.h> 36148456Spjd#include <opencrypto/cryptodev.h> 37148456Spjd#ifdef _KERNEL 38148456Spjd#include <sys/bio.h> 39148456Spjd#include <sys/libkern.h> 40148456Spjd#include <geom/geom.h> 41148456Spjd#else 42148456Spjd#include <stdio.h> 43148456Spjd#include <string.h> 44148867Spjd#include <strings.h> 45148456Spjd#endif 46148456Spjd#ifndef _OpenSSL_ 47148456Spjd#include <sys/md5.h> 48148456Spjd#endif 49148456Spjd 50148456Spjd#define G_ELI_CLASS_NAME "ELI" 51148456Spjd#define G_ELI_MAGIC "GEOM::ELI" 52148456Spjd#define G_ELI_SUFFIX ".eli" 53148456Spjd 54148456Spjd/* 55148456Spjd * Version history: 56148456Spjd * 0 - Initial version number. 57159307Spjd * 1 - Added data authentication support (md_aalgo field and 58159307Spjd * G_ELI_FLAG_AUTH flag). 59148456Spjd */ 60159307Spjd#define G_ELI_VERSION 1 61148456Spjd 62148456Spjd/* Use random, onetime keys. */ 63148456Spjd#define G_ELI_FLAG_ONETIME 0x00000001 64148456Spjd/* Ask for the passphrase from the kernel, before mounting root. */ 65148456Spjd#define G_ELI_FLAG_BOOT 0x00000002 66148456Spjd/* Detach on last close, if we were open for writing. */ 67148456Spjd#define G_ELI_FLAG_WO_DETACH 0x00000004 68148456Spjd/* Detach on last close. */ 69148456Spjd#define G_ELI_FLAG_RW_DETACH 0x00000008 70159307Spjd/* Provide data authentication. */ 71159307Spjd#define G_ELI_FLAG_AUTH 0x00000010 72148456Spjd/* Provider was open for writing. */ 73148456Spjd#define G_ELI_FLAG_WOPEN 0x00010000 74148456Spjd/* Destroy device. */ 75148456Spjd#define G_ELI_FLAG_DESTROY 0x00020000 76148456Spjd 77148456Spjd#define SHA512_MDLEN 64 78159307Spjd#define G_ELI_AUTH_SECKEYLEN SHA256_DIGEST_LENGTH 79148456Spjd 80148456Spjd#define G_ELI_MAXMKEYS 2 81148456Spjd#define G_ELI_MAXKEYLEN 64 82148456Spjd#define G_ELI_USERKEYLEN G_ELI_MAXKEYLEN 83148456Spjd#define G_ELI_DATAKEYLEN G_ELI_MAXKEYLEN 84159307Spjd#define G_ELI_AUTHKEYLEN G_ELI_MAXKEYLEN 85148456Spjd#define G_ELI_IVKEYLEN G_ELI_MAXKEYLEN 86148456Spjd#define G_ELI_SALTLEN 64 87148456Spjd#define G_ELI_DATAIVKEYLEN (G_ELI_DATAKEYLEN + G_ELI_IVKEYLEN) 88148456Spjd/* Data-Key, IV-Key, HMAC_SHA512(Derived-Key, Data-Key+IV-Key) */ 89148456Spjd#define G_ELI_MKEYLEN (G_ELI_DATAIVKEYLEN + SHA512_MDLEN) 90148456Spjd 91148456Spjd#ifdef _KERNEL 92148456Spjdextern u_int g_eli_debug; 93148456Spjdextern u_int g_eli_overwrites; 94159307Spjdextern u_int g_eli_batch; 95148456Spjd 96148456Spjd#define G_ELI_CRYPTO_HW 1 97148456Spjd#define G_ELI_CRYPTO_SW 2 98148456Spjd 99148456Spjd#define G_ELI_DEBUG(lvl, ...) do { \ 100148456Spjd if (g_eli_debug >= (lvl)) { \ 101148456Spjd printf("GEOM_ELI"); \ 102148456Spjd if (g_eli_debug > 0) \ 103148456Spjd printf("[%u]", lvl); \ 104148456Spjd printf(": "); \ 105148456Spjd printf(__VA_ARGS__); \ 106148456Spjd printf("\n"); \ 107148456Spjd } \ 108148456Spjd} while (0) 109148456Spjd#define G_ELI_LOGREQ(lvl, bp, ...) do { \ 110148456Spjd if (g_eli_debug >= (lvl)) { \ 111148456Spjd printf("GEOM_ELI"); \ 112148456Spjd if (g_eli_debug > 0) \ 113148456Spjd printf("[%u]", lvl); \ 114148456Spjd printf(": "); \ 115148456Spjd printf(__VA_ARGS__); \ 116148456Spjd printf(" "); \ 117148456Spjd g_print_bio(bp); \ 118148456Spjd printf("\n"); \ 119148456Spjd } \ 120148456Spjd} while (0) 121148456Spjd 122148456Spjdstruct g_eli_worker { 123148456Spjd struct g_eli_softc *w_softc; 124148456Spjd struct proc *w_proc; 125148456Spjd u_int w_number; 126148456Spjd uint64_t w_sid; 127148456Spjd LIST_ENTRY(g_eli_worker) w_next; 128148456Spjd}; 129148456Spjd 130148456Spjdstruct g_eli_softc { 131148456Spjd struct g_geom *sc_geom; 132148456Spjd u_int sc_crypto; 133159307Spjd uint8_t sc_mkey[G_ELI_DATAIVKEYLEN]; 134159307Spjd uint8_t sc_ekey[G_ELI_DATAKEYLEN]; 135159307Spjd u_int sc_ealgo; 136159307Spjd u_int sc_ekeylen; 137159307Spjd uint8_t sc_akey[G_ELI_AUTHKEYLEN]; 138159307Spjd u_int sc_aalgo; 139159307Spjd u_int sc_akeylen; 140159307Spjd u_int sc_alen; 141159307Spjd SHA256_CTX sc_akeyctx; 142148456Spjd uint8_t sc_ivkey[G_ELI_IVKEYLEN]; 143148456Spjd SHA256_CTX sc_ivctx; 144148456Spjd int sc_nkey; 145148456Spjd uint32_t sc_flags; 146159307Spjd u_int sc_bytes_per_sector; 147159307Spjd u_int sc_data_per_sector; 148148456Spjd 149148456Spjd /* Only for software cryptography. */ 150148456Spjd struct bio_queue_head sc_queue; 151148456Spjd struct mtx sc_queue_mtx; 152148456Spjd LIST_HEAD(, g_eli_worker) sc_workers; 153148456Spjd}; 154148456Spjd#define sc_name sc_geom->name 155148456Spjd#endif /* _KERNEL */ 156148456Spjd 157148456Spjdstruct g_eli_metadata { 158148456Spjd char md_magic[16]; /* Magic value. */ 159148456Spjd uint32_t md_version; /* Version number. */ 160148456Spjd uint32_t md_flags; /* Additional flags. */ 161159307Spjd uint16_t md_ealgo; /* Encryption algorithm. */ 162148456Spjd uint16_t md_keylen; /* Key length. */ 163159307Spjd uint16_t md_aalgo; /* Authentication algorithm. */ 164148456Spjd uint64_t md_provsize; /* Provider's size. */ 165148456Spjd uint32_t md_sectorsize; /* Sector size. */ 166148456Spjd uint8_t md_keys; /* Available keys. */ 167149303Spjd int32_t md_iterations; /* Number of iterations for PKCS#5v2. */ 168148456Spjd uint8_t md_salt[G_ELI_SALTLEN]; /* Salt. */ 169148456Spjd /* Encrypted master key (IV-key, Data-key, HMAC). */ 170148456Spjd uint8_t md_mkeys[G_ELI_MAXMKEYS * G_ELI_MKEYLEN]; 171148456Spjd u_char md_hash[16]; /* MD5 hash. */ 172149323Spjd} __packed; 173148456Spjd#ifndef _OpenSSL_ 174148456Spjdstatic __inline void 175148456Spjdeli_metadata_encode(struct g_eli_metadata *md, u_char *data) 176148456Spjd{ 177148456Spjd MD5_CTX ctx; 178148456Spjd u_char *p; 179148456Spjd 180148456Spjd p = data; 181148456Spjd bcopy(md->md_magic, p, sizeof(md->md_magic)); p += sizeof(md->md_magic); 182148456Spjd le32enc(p, md->md_version); p += sizeof(md->md_version); 183148456Spjd le32enc(p, md->md_flags); p += sizeof(md->md_flags); 184159307Spjd le16enc(p, md->md_ealgo); p += sizeof(md->md_ealgo); 185148456Spjd le16enc(p, md->md_keylen); p += sizeof(md->md_keylen); 186159307Spjd le16enc(p, md->md_aalgo); p += sizeof(md->md_aalgo); 187148456Spjd le64enc(p, md->md_provsize); p += sizeof(md->md_provsize); 188148456Spjd le32enc(p, md->md_sectorsize); p += sizeof(md->md_sectorsize); 189148456Spjd *p = md->md_keys; p += sizeof(md->md_keys); 190148456Spjd le32enc(p, md->md_iterations); p += sizeof(md->md_iterations); 191148456Spjd bcopy(md->md_salt, p, sizeof(md->md_salt)); p += sizeof(md->md_salt); 192148456Spjd bcopy(md->md_mkeys, p, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys); 193148456Spjd MD5Init(&ctx); 194148456Spjd MD5Update(&ctx, data, p - data); 195157305Spjd MD5Final(md->md_hash, &ctx); 196148456Spjd bcopy(md->md_hash, p, sizeof(md->md_hash)); 197148456Spjd} 198148456Spjdstatic __inline int 199148456Spjdeli_metadata_decode_v0(const u_char *data, struct g_eli_metadata *md) 200148456Spjd{ 201148456Spjd MD5_CTX ctx; 202148456Spjd const u_char *p; 203148456Spjd 204148456Spjd p = data + sizeof(md->md_magic) + sizeof(md->md_version); 205148456Spjd md->md_flags = le32dec(p); p += sizeof(md->md_flags); 206159307Spjd md->md_ealgo = le16dec(p); p += sizeof(md->md_ealgo); 207148456Spjd md->md_keylen = le16dec(p); p += sizeof(md->md_keylen); 208148456Spjd md->md_provsize = le64dec(p); p += sizeof(md->md_provsize); 209148456Spjd md->md_sectorsize = le32dec(p); p += sizeof(md->md_sectorsize); 210148456Spjd md->md_keys = *p; p += sizeof(md->md_keys); 211148456Spjd md->md_iterations = le32dec(p); p += sizeof(md->md_iterations); 212148456Spjd bcopy(p, md->md_salt, sizeof(md->md_salt)); p += sizeof(md->md_salt); 213148456Spjd bcopy(p, md->md_mkeys, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys); 214148456Spjd MD5Init(&ctx); 215148456Spjd MD5Update(&ctx, data, p - data); 216157305Spjd MD5Final(md->md_hash, &ctx); 217148456Spjd if (bcmp(md->md_hash, p, 16) != 0) 218148456Spjd return (EINVAL); 219148456Spjd return (0); 220148456Spjd} 221148456Spjdstatic __inline int 222159307Spjdeli_metadata_decode_v1(const u_char *data, struct g_eli_metadata *md) 223159307Spjd{ 224159307Spjd MD5_CTX ctx; 225159307Spjd const u_char *p; 226159307Spjd 227159307Spjd p = data + sizeof(md->md_magic) + sizeof(md->md_version); 228159307Spjd md->md_flags = le32dec(p); p += sizeof(md->md_flags); 229159307Spjd md->md_ealgo = le16dec(p); p += sizeof(md->md_ealgo); 230159307Spjd md->md_keylen = le16dec(p); p += sizeof(md->md_keylen); 231159307Spjd md->md_aalgo = le16dec(p); p += sizeof(md->md_aalgo); 232159307Spjd md->md_provsize = le64dec(p); p += sizeof(md->md_provsize); 233159307Spjd md->md_sectorsize = le32dec(p); p += sizeof(md->md_sectorsize); 234159307Spjd md->md_keys = *p; p += sizeof(md->md_keys); 235159307Spjd md->md_iterations = le32dec(p); p += sizeof(md->md_iterations); 236159307Spjd bcopy(p, md->md_salt, sizeof(md->md_salt)); p += sizeof(md->md_salt); 237159307Spjd bcopy(p, md->md_mkeys, sizeof(md->md_mkeys)); p += sizeof(md->md_mkeys); 238159307Spjd MD5Init(&ctx); 239159307Spjd MD5Update(&ctx, data, p - data); 240159307Spjd MD5Final(md->md_hash, &ctx); 241159307Spjd if (bcmp(md->md_hash, p, 16) != 0) 242159307Spjd return (EINVAL); 243159307Spjd return (0); 244159307Spjd} 245159307Spjdstatic __inline int 246148456Spjdeli_metadata_decode(const u_char *data, struct g_eli_metadata *md) 247148456Spjd{ 248148456Spjd int error; 249148456Spjd 250148456Spjd bcopy(data, md->md_magic, sizeof(md->md_magic)); 251148456Spjd md->md_version = le32dec(data + sizeof(md->md_magic)); 252148456Spjd switch (md->md_version) { 253148456Spjd case 0: 254148456Spjd error = eli_metadata_decode_v0(data, md); 255148456Spjd break; 256159307Spjd case 1: 257159307Spjd error = eli_metadata_decode_v1(data, md); 258159307Spjd break; 259148456Spjd default: 260148456Spjd error = EINVAL; 261148456Spjd break; 262148456Spjd } 263148456Spjd return (error); 264148456Spjd} 265148456Spjd#endif /* !_OpenSSL */ 266148456Spjd 267148456Spjdstatic __inline u_int 268159307Spjdg_eli_str2ealgo(const char *name) 269148456Spjd{ 270148456Spjd 271148867Spjd if (strcasecmp("null", name) == 0) 272148456Spjd return (CRYPTO_NULL_CBC); 273148867Spjd else if (strcasecmp("aes", name) == 0) 274148456Spjd return (CRYPTO_AES_CBC); 275148867Spjd else if (strcasecmp("blowfish", name) == 0) 276148456Spjd return (CRYPTO_BLF_CBC); 277148867Spjd else if (strcasecmp("3des", name) == 0) 278148456Spjd return (CRYPTO_3DES_CBC); 279148456Spjd return (CRYPTO_ALGORITHM_MIN - 1); 280148456Spjd} 281148456Spjd 282159307Spjdstatic __inline u_int 283159307Spjdg_eli_str2aalgo(const char *name) 284159307Spjd{ 285159307Spjd 286159307Spjd if (strcasecmp("hmac/md5", name) == 0) 287159307Spjd return (CRYPTO_MD5_HMAC); 288159307Spjd else if (strcasecmp("hmac/sha1", name) == 0) 289159307Spjd return (CRYPTO_SHA1_HMAC); 290159307Spjd else if (strcasecmp("hmac/ripemd160", name) == 0) 291159307Spjd return (CRYPTO_RIPEMD160_HMAC); 292159307Spjd else if (strcasecmp("hmac/sha256", name) == 0) 293159307Spjd return (CRYPTO_SHA2_256_HMAC); 294159307Spjd else if (strcasecmp("hmac/sha384", name) == 0) 295159307Spjd return (CRYPTO_SHA2_384_HMAC); 296159307Spjd else if (strcasecmp("hmac/sha512", name) == 0) 297159307Spjd return (CRYPTO_SHA2_512_HMAC); 298159307Spjd return (CRYPTO_ALGORITHM_MIN - 1); 299159307Spjd} 300159307Spjd 301148456Spjdstatic __inline const char * 302148456Spjdg_eli_algo2str(u_int algo) 303148456Spjd{ 304148456Spjd 305148456Spjd switch (algo) { 306148456Spjd case CRYPTO_NULL_CBC: 307148456Spjd return ("NULL"); 308148456Spjd case CRYPTO_AES_CBC: 309159307Spjd return ("AES-CBC"); 310148456Spjd case CRYPTO_BLF_CBC: 311159307Spjd return ("Blowfish-CBC"); 312148456Spjd case CRYPTO_3DES_CBC: 313159307Spjd return ("3DES-CBC"); 314159307Spjd case CRYPTO_MD5_HMAC: 315159307Spjd return ("HMAC/MD5"); 316159307Spjd case CRYPTO_SHA1_HMAC: 317159307Spjd return ("HMAC/SHA1"); 318159307Spjd case CRYPTO_RIPEMD160_HMAC: 319159307Spjd return ("HMAC/RIPEMD160"); 320159307Spjd case CRYPTO_SHA2_256_HMAC: 321159307Spjd return ("HMAC/SHA256"); 322159307Spjd case CRYPTO_SHA2_384_HMAC: 323159307Spjd return ("HMAC/SHA384"); 324159307Spjd case CRYPTO_SHA2_512_HMAC: 325159307Spjd return ("HMAC/SHA512"); 326148456Spjd } 327148456Spjd return ("unknown"); 328148456Spjd} 329148456Spjd 330148456Spjdstatic __inline void 331148456Spjdeli_metadata_dump(const struct g_eli_metadata *md) 332148456Spjd{ 333148456Spjd static const char hex[] = "0123456789abcdef"; 334148456Spjd char str[sizeof(md->md_mkeys) * 2 + 1]; 335148456Spjd u_int i; 336148456Spjd 337148456Spjd printf(" magic: %s\n", md->md_magic); 338148456Spjd printf(" version: %u\n", (u_int)md->md_version); 339148456Spjd printf(" flags: 0x%x\n", (u_int)md->md_flags); 340159307Spjd printf(" ealgo: %s\n", g_eli_algo2str(md->md_ealgo)); 341148456Spjd printf(" keylen: %u\n", (u_int)md->md_keylen); 342159307Spjd if (md->md_flags & G_ELI_FLAG_AUTH) 343159307Spjd printf(" aalgo: %s\n", g_eli_algo2str(md->md_aalgo)); 344148456Spjd printf(" provsize: %ju\n", (uintmax_t)md->md_provsize); 345148456Spjd printf("sectorsize: %u\n", (u_int)md->md_sectorsize); 346148456Spjd printf(" keys: 0x%02x\n", (u_int)md->md_keys); 347148456Spjd printf("iterations: %u\n", (u_int)md->md_iterations); 348148456Spjd bzero(str, sizeof(str)); 349148456Spjd for (i = 0; i < sizeof(md->md_salt); i++) { 350148456Spjd str[i * 2] = hex[md->md_salt[i] >> 4]; 351148456Spjd str[i * 2 + 1] = hex[md->md_salt[i] & 0x0f]; 352148456Spjd } 353149303Spjd printf(" Salt: %s\n", str); 354148456Spjd bzero(str, sizeof(str)); 355148456Spjd for (i = 0; i < sizeof(md->md_mkeys); i++) { 356148456Spjd str[i * 2] = hex[md->md_mkeys[i] >> 4]; 357148456Spjd str[i * 2 + 1] = hex[md->md_mkeys[i] & 0x0f]; 358148456Spjd } 359148456Spjd printf("Master Key: %s\n", str); 360148456Spjd bzero(str, sizeof(str)); 361148456Spjd for (i = 0; i < 16; i++) { 362148456Spjd str[i * 2] = hex[md->md_hash[i] >> 4]; 363148456Spjd str[i * 2 + 1] = hex[md->md_hash[i] & 0x0f]; 364148456Spjd } 365149303Spjd printf(" MD5 hash: %s\n", str); 366148456Spjd} 367148456Spjd 368148456Spjdstatic __inline u_int 369148456Spjdg_eli_keylen(u_int algo, u_int keylen) 370148456Spjd{ 371148456Spjd 372148456Spjd switch (algo) { 373148456Spjd case CRYPTO_NULL_CBC: 374148456Spjd if (keylen == 0) 375148456Spjd keylen = 64 * 8; 376148456Spjd else { 377148456Spjd if (keylen > 64 * 8) 378148456Spjd keylen = 0; 379148456Spjd } 380148456Spjd return (keylen); 381148456Spjd case CRYPTO_AES_CBC: 382148456Spjd switch (keylen) { 383148456Spjd case 0: 384148456Spjd return (128); 385148456Spjd case 128: 386148456Spjd case 192: 387148456Spjd case 256: 388148456Spjd return (keylen); 389148456Spjd default: 390148456Spjd return (0); 391148456Spjd } 392148456Spjd case CRYPTO_BLF_CBC: 393148456Spjd if (keylen == 0) 394148456Spjd return (128); 395148456Spjd if (keylen < 128 || keylen > 448) 396148456Spjd return (0); 397148456Spjd if ((keylen % 32) != 0) 398148456Spjd return (0); 399148456Spjd return (keylen); 400148456Spjd case CRYPTO_3DES_CBC: 401148456Spjd if (keylen == 0 || keylen == 192) 402148456Spjd return (192); 403148456Spjd return (0); 404148456Spjd default: 405148456Spjd return (0); 406148456Spjd } 407148456Spjd} 408148456Spjd 409159307Spjdstatic __inline u_int 410159307Spjdg_eli_hashlen(u_int algo) 411159307Spjd{ 412159307Spjd 413159307Spjd switch (algo) { 414159307Spjd case CRYPTO_MD5_HMAC: 415159307Spjd return (16); 416159307Spjd case CRYPTO_SHA1_HMAC: 417159307Spjd return (20); 418159307Spjd case CRYPTO_RIPEMD160_HMAC: 419159307Spjd return (20); 420159307Spjd case CRYPTO_SHA2_256_HMAC: 421159307Spjd return (32); 422159307Spjd case CRYPTO_SHA2_384_HMAC: 423159307Spjd return (48); 424159307Spjd case CRYPTO_SHA2_512_HMAC: 425159307Spjd return (64); 426159307Spjd } 427159307Spjd return (0); 428159307Spjd} 429159307Spjd 430148456Spjd#ifdef _KERNEL 431148456Spjdint g_eli_read_metadata(struct g_class *mp, struct g_provider *pp, 432148456Spjd struct g_eli_metadata *md); 433148456Spjdstruct g_geom *g_eli_create(struct gctl_req *req, struct g_class *mp, 434148456Spjd struct g_provider *bpp, const struct g_eli_metadata *md, 435148456Spjd const u_char *mkey, int nkey); 436148456Spjdint g_eli_destroy(struct g_eli_softc *sc, boolean_t force); 437148456Spjd 438148456Spjdint g_eli_access(struct g_provider *pp, int dr, int dw, int de); 439148456Spjdvoid g_eli_config(struct gctl_req *req, struct g_class *mp, const char *verb); 440159307Spjd 441159307Spjdvoid g_eli_read_done(struct bio *bp); 442159307Spjdvoid g_eli_write_done(struct bio *bp); 443159307Spjdint g_eli_crypto_rerun(struct cryptop *crp); 444159307Spjdvoid g_eli_crypto_ivgen(struct g_eli_softc *sc, off_t offset, u_char *iv, 445159307Spjd size_t size); 446159307Spjd 447159307Spjdvoid g_eli_crypto_run(struct g_eli_worker *wr, struct bio *bp); 448159307Spjd 449159307Spjdvoid g_eli_auth_read(struct g_eli_softc *sc, struct bio *bp); 450159307Spjdvoid g_eli_auth_run(struct g_eli_worker *wr, struct bio *bp); 451148456Spjd#endif 452148456Spjd 453148456Spjdvoid g_eli_mkey_hmac(unsigned char *mkey, const unsigned char *key); 454148456Spjdint g_eli_mkey_decrypt(const struct g_eli_metadata *md, 455148456Spjd const unsigned char *key, unsigned char *mkey, unsigned *nkeyp); 456148456Spjdint g_eli_mkey_encrypt(unsigned algo, const unsigned char *key, unsigned keylen, 457148456Spjd unsigned char *mkey); 458159307Spjd#ifdef _KERNEL 459159307Spjdvoid g_eli_mkey_propagate(struct g_eli_softc *sc, const unsigned char *mkey); 460159307Spjd#endif 461148456Spjd 462148456Spjdint g_eli_crypto_encrypt(u_int algo, u_char *data, size_t datasize, 463148456Spjd const u_char *key, size_t keysize); 464148456Spjdint g_eli_crypto_decrypt(u_int algo, u_char *data, size_t datasize, 465148456Spjd const u_char *key, size_t keysize); 466148456Spjd 467148456Spjdstruct hmac_ctx { 468148456Spjd SHA512_CTX shactx; 469148456Spjd u_char k_opad[128]; 470148456Spjd}; 471148456Spjd 472148456Spjdvoid g_eli_crypto_hmac_init(struct hmac_ctx *ctx, const uint8_t *hkey, 473148456Spjd size_t hkeylen); 474148456Spjdvoid g_eli_crypto_hmac_update(struct hmac_ctx *ctx, const uint8_t *data, 475148456Spjd size_t datasize); 476148456Spjdvoid g_eli_crypto_hmac_final(struct hmac_ctx *ctx, uint8_t *md, size_t mdsize); 477148456Spjdvoid g_eli_crypto_hmac(const uint8_t *hkey, size_t hkeysize, 478148456Spjd const uint8_t *data, size_t datasize, uint8_t *md, size_t mdsize); 479148456Spjd#endif /* !_G_ELI_H_ */ 480