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/*
* Portions Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
* Portions Copyright (C) 2000-2002 Internet Software Consortium.
* Portions Copyright (C) 1995-2000 by Network Associates, Inc.
*
* Permission to use, copy, modify, and 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.
*/
/* $Id: dst_internal.h,v 1.1.4.1 2004/12/09 04:07:16 marka Exp $ */
#ifndef DST_DST_INTERNAL_H
#define DST_DST_INTERNAL_H 1
#include <isc/lang.h>
#include <isc/buffer.h>
#include <isc/int.h>
#include <isc/magic.h>
#include <isc/region.h>
#include <isc/types.h>
#include <dst/dst.h>
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)
extern isc_mem_t *dst__memory_pool;
/***
*** Types
***/
typedef struct dst_func dst_func_t;
struct dst_key {
unsigned int magic;
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 */
isc_uint32_t key_flags; /* flags of the public key */
isc_uint16_t key_id; /* identifier of the key */
dns_rdataclass_t key_class; /* class of the key record */
isc_mem_t *mctx; /* memory context */
void * opaque; /* pointer to key in crypto pkg fmt */
dst_func_t * func; /* crypto package specific functions */
};
struct dst_context {
unsigned int magic;
dst_key_t *key;
isc_mem_t *mctx;
void *opaque;
};
struct dst_func {
/*
* Context functions
*/
isc_result_t (*createctx)(dst_key_t *key, 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 (*computesecret)(const dst_key_t *pub,
const dst_key_t *priv,
isc_buffer_t *secret);
isc_boolean_t (*compare)(const dst_key_t *key1, const dst_key_t *key2);
isc_boolean_t (*paramcompare)(const dst_key_t *key1,
const dst_key_t *key2);
isc_result_t (*generate)(dst_key_t *key, int parms);
isc_boolean_t (*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);
/* cleanup */
void (*cleanup)(void);
};
/*
* Initializers
*/
isc_result_t dst__openssl_init(void);
isc_result_t dst__hmacmd5_init(struct dst_func **funcp);
isc_result_t dst__opensslrsa_init(struct dst_func **funcp);
isc_result_t dst__openssldsa_init(struct dst_func **funcp);
isc_result_t dst__openssldh_init(struct dst_func **funcp);
isc_result_t dst__gssapi_init(struct dst_func **funcp);
/*
* Destructors
*/
void dst__openssl_destroy(void);
/*
* 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,
isc_boolean_t pseudo);
ISC_LANG_ENDDECLS
#endif /* DST_DST_INTERNAL_H */
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