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/*
* Portions Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*
* Portions Copyright (C) Network Associates, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NETWORK ASSOCIATES DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE
* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef DST_DST_INTERNAL_H
#define DST_DST_INTERNAL_H 1
#include <inttypes.h>
#include <stdbool.h>
#include <isc/lang.h>
#include <isc/buffer.h>
#include <isc/magic.h>
#include <isc/region.h>
#include <isc/types.h>
#include <isc/md5.h>
#include <isc/refcount.h>
#include <isc/sha1.h>
#include <isc/sha2.h>
#include <isc/stdtime.h>
#include <isc/hmacmd5.h>
#include <isc/hmacsha.h>
#include <pk11/site.h>
#include <dns/time.h>
#include <dst/dst.h>
#ifdef OPENSSL
#ifndef PK11_DH_DISABLE
#include <openssl/dh.h>
#endif
#ifndef PK11_DSA_DISABLE
#include <openssl/dsa.h>
#endif
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/rsa.h>
#endif
ISC_LANG_BEGINDECLS
#define KEY_MAGIC ISC_MAGIC('D','S','T','K')
#define CTX_MAGIC ISC_MAGIC('D','S','T','C')
#define VALID_KEY(x) ISC_MAGIC_VALID(x, KEY_MAGIC)
#define VALID_CTX(x) ISC_MAGIC_VALID(x, CTX_MAGIC)
LIBDNS_EXTERNAL_DATA extern isc_mem_t *dst__memory_pool;
/***
*** Types
***/
typedef struct dst_func dst_func_t;
#ifndef PK11_MD5_DISABLE
typedef struct dst_hmacmd5_key dst_hmacmd5_key_t;
#endif
typedef struct dst_hmacsha1_key dst_hmacsha1_key_t;
typedef struct dst_hmacsha224_key dst_hmacsha224_key_t;
typedef struct dst_hmacsha256_key dst_hmacsha256_key_t;
typedef struct dst_hmacsha384_key dst_hmacsha384_key_t;
typedef struct dst_hmacsha512_key dst_hmacsha512_key_t;
/*%
* Indicate whether a DST context will be used for signing
* or for verification
*/
typedef enum { DO_SIGN, DO_VERIFY } dst_use_t;
/*% DST Key Structure */
struct dst_key {
unsigned int magic;
isc_refcount_t refs;
dns_name_t * key_name; /*%< name of the key */
unsigned int key_size; /*%< size of the key in bits */
unsigned int key_proto; /*%< protocols this key is used for */
unsigned int key_alg; /*%< algorithm of the key */
uint32_t key_flags; /*%< flags of the public key */
uint16_t key_id; /*%< identifier of the key */
uint16_t key_rid; /*%< identifier of the key when
revoked */
uint16_t key_bits; /*%< hmac digest bits */
dns_rdataclass_t key_class; /*%< class of the key record */
dns_ttl_t key_ttl; /*%< default/initial dnskey ttl */
isc_mem_t *mctx; /*%< memory context */
char *engine; /*%< engine name (HSM) */
char *label; /*%< engine label (HSM) */
union {
void *generic;
gss_ctx_id_t gssctx;
#ifdef OPENSSL
#if !defined(USE_EVP) || !USE_EVP
RSA *rsa;
#endif
#ifndef PK11_DSA_DISABLE
DSA *dsa;
#endif
#ifndef PK11_DH_DISABLE
DH *dh;
#endif
EVP_PKEY *pkey;
#elif PKCS11CRYPTO
pk11_object_t *pkey;
#endif
#ifndef PK11_MD5_DISABLE
dst_hmacmd5_key_t *hmacmd5;
#endif
dst_hmacsha1_key_t *hmacsha1;
dst_hmacsha224_key_t *hmacsha224;
dst_hmacsha256_key_t *hmacsha256;
dst_hmacsha384_key_t *hmacsha384;
dst_hmacsha512_key_t *hmacsha512;
} keydata; /*%< pointer to key in crypto pkg fmt */
isc_stdtime_t times[DST_MAX_TIMES + 1]; /*%< timing metadata */
bool timeset[DST_MAX_TIMES + 1]; /*%< data set? */
isc_stdtime_t nums[DST_MAX_NUMERIC + 1]; /*%< numeric metadata */
bool numset[DST_MAX_NUMERIC + 1]; /*%< data set? */
bool inactive; /*%< private key not present as it is
inactive */
bool external; /*%< external key */
int fmt_major; /*%< private key format, major version */
int fmt_minor; /*%< private key format, minor version */
dst_func_t * func; /*%< crypto package specific functions */
isc_buffer_t *key_tkeytoken; /*%< TKEY token data */
};
struct dst_context {
unsigned int magic;
dst_use_t use;
dst_key_t *key;
isc_mem_t *mctx;
isc_logcategory_t *category;
union {
void *generic;
dst_gssapi_signverifyctx_t *gssctx;
#ifndef PK11_MD5_DISABLE
isc_md5_t *md5ctx;
#endif
isc_sha1_t *sha1ctx;
isc_sha256_t *sha256ctx;
isc_sha512_t *sha512ctx;
#ifndef PK11_MD5_DISABLE
isc_hmacmd5_t *hmacmd5ctx;
#endif
isc_hmacsha1_t *hmacsha1ctx;
isc_hmacsha224_t *hmacsha224ctx;
isc_hmacsha256_t *hmacsha256ctx;
isc_hmacsha384_t *hmacsha384ctx;
isc_hmacsha512_t *hmacsha512ctx;
#ifdef OPENSSL
EVP_MD_CTX *evp_md_ctx;
#elif PKCS11CRYPTO
pk11_context_t *pk11_ctx;
#endif
} ctxdata;
};
struct dst_func {
/*
* Context functions
*/
isc_result_t (*createctx)(dst_key_t *key, dst_context_t *dctx);
isc_result_t (*createctx2)(dst_key_t *key, int maxbits,
dst_context_t *dctx);
void (*destroyctx)(dst_context_t *dctx);
isc_result_t (*adddata)(dst_context_t *dctx, const isc_region_t *data);
/*
* Key operations
*/
isc_result_t (*sign)(dst_context_t *dctx, isc_buffer_t *sig);
isc_result_t (*verify)(dst_context_t *dctx, const isc_region_t *sig);
isc_result_t (*verify2)(dst_context_t *dctx, int maxbits,
const isc_region_t *sig);
isc_result_t (*computesecret)(const dst_key_t *pub,
const dst_key_t *priv,
isc_buffer_t *secret);
bool (*compare)(const dst_key_t *key1, const dst_key_t *key2);
bool (*paramcompare)(const dst_key_t *key1,
const dst_key_t *key2);
isc_result_t (*generate)(dst_key_t *key, int parms,
void (*callback)(int));
bool (*isprivate)(const dst_key_t *key);
void (*destroy)(dst_key_t *key);
/* conversion functions */
isc_result_t (*todns)(const dst_key_t *key, isc_buffer_t *data);
isc_result_t (*fromdns)(dst_key_t *key, isc_buffer_t *data);
isc_result_t (*tofile)(const dst_key_t *key, const char *directory);
isc_result_t (*parse)(dst_key_t *key,
isc_lex_t *lexer,
dst_key_t *pub);
/* cleanup */
void (*cleanup)(void);
isc_result_t (*fromlabel)(dst_key_t *key, const char *engine,
const char *label, const char *pin);
isc_result_t (*dump)(dst_key_t *key, isc_mem_t *mctx, char **buffer,
int *length);
isc_result_t (*restore)(dst_key_t *key, const char *keystr);
};
/*%
* Initializers
*/
isc_result_t dst__openssl_init(const char *engine);
#define dst__pkcs11_init pk11_initialize
#ifndef PK11_MD5_DISABLE
isc_result_t dst__hmacmd5_init(struct dst_func **funcp);
#endif
isc_result_t dst__hmacsha1_init(struct dst_func **funcp);
isc_result_t dst__hmacsha224_init(struct dst_func **funcp);
isc_result_t dst__hmacsha256_init(struct dst_func **funcp);
isc_result_t dst__hmacsha384_init(struct dst_func **funcp);
isc_result_t dst__hmacsha512_init(struct dst_func **funcp);
isc_result_t dst__opensslrsa_init(struct dst_func **funcp,
unsigned char algorithm);
isc_result_t dst__pkcs11rsa_init(struct dst_func **funcp);
#ifndef PK11_DSA_DISABLE
isc_result_t dst__openssldsa_init(struct dst_func **funcp);
isc_result_t dst__pkcs11dsa_init(struct dst_func **funcp);
#endif
#ifndef PK11_DH_DISABLE
isc_result_t dst__openssldh_init(struct dst_func **funcp);
isc_result_t dst__pkcs11dh_init(struct dst_func **funcp);
#endif
isc_result_t dst__gssapi_init(struct dst_func **funcp);
#ifdef HAVE_OPENSSL_ECDSA
isc_result_t dst__opensslecdsa_init(struct dst_func **funcp);
#endif
#if defined(HAVE_OPENSSL_ED25519) || defined(HAVE_OPENSSL_ED448)
isc_result_t dst__openssleddsa_init(struct dst_func **funcp);
#endif
#ifdef HAVE_PKCS11_ECDSA
isc_result_t dst__pkcs11ecdsa_init(struct dst_func **funcp);
#endif
#if defined(HAVE_PKCS11_ED25519) || defined(HAVE_PKCS11_ED448)
isc_result_t dst__pkcs11eddsa_init(struct dst_func **funcp);
#endif
#ifdef HAVE_OPENSSL_GOST
isc_result_t dst__opensslgost_init(struct dst_func **funcp);
#endif
#ifdef HAVE_PKCS11_GOST
isc_result_t dst__pkcs11gost_init(struct dst_func **funcp);
#endif
/*%
* Destructors
*/
void dst__openssl_destroy(void);
#define dst__pkcs11_destroy pk11_finalize
/*%
* Memory allocators using the DST memory pool.
*/
void * dst__mem_alloc(size_t size);
void dst__mem_free(void *ptr);
void * dst__mem_realloc(void *ptr, size_t size);
/*%
* Entropy retriever using the DST entropy pool.
*/
isc_result_t dst__entropy_getdata(void *buf, unsigned int len,
bool pseudo);
/*
* Entropy status hook.
*/
unsigned int dst__entropy_status(void);
ISC_LANG_ENDDECLS
#endif /* DST_DST_INTERNAL_H */
/*! \file */
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