74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/* IKE modular algorithm handling interface
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* Author: JuanJo Ciarlante <[email protected]>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* RCSID $Id: ike_alg.h,v 1.3 2004/09/16 23:22:22 as Exp $
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*/
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#ifndef _IKE_ALG_H
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#define _IKE_ALG_H
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#include "connections.h"
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struct ike_alg {
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u_int16_t algo_type;
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u_int16_t algo_id;
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struct ike_alg *algo_next;
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};
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struct encrypt_desc {
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u_int16_t algo_type;
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u_int16_t algo_id;
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struct ike_alg *algo_next;
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size_t enc_ctxsize;
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size_t enc_blocksize;
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u_int keydeflen;
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u_int keymaxlen;
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u_int keyminlen;
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void (*do_crypt)(u_int8_t *dat, size_t datasize, u_int8_t *key, size_t key_size, u_int8_t *iv, bool enc);
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};
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struct hash_desc {
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u_int16_t algo_type;
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u_int16_t algo_id;
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struct ike_alg *algo_next;
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size_t hash_ctx_size;
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size_t hash_digest_size;
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void (*hash_init)(void *ctx);
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void (*hash_update)(void *ctx, const u_int8_t *in, size_t datasize);
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void (*hash_final)(u_int8_t *out, void *ctx);
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};
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#define IKE_ALG_ENCRYPT 0
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#define IKE_ALG_HASH 1
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#define IKE_ALG_MAX IKE_ALG_HASH
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extern int ike_alg_add(struct ike_alg *a);
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extern struct hash_desc *ike_alg_get_hasher(u_int alg);
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extern struct encrypt_desc *ike_alg_get_encrypter(u_int alg);
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extern bool ike_alg_enc_present(u_int ealg);
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extern bool ike_alg_hash_present(u_int halg);
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extern int ike_alg_register_hash(struct hash_desc *a);
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extern int ike_alg_register_enc(struct encrypt_desc *e);
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extern const struct oakley_group_desc* ike_alg_pfsgroup(struct connection *c
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, lset_t policy);
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extern struct db_context * ike_alg_db_new(struct alg_info_ike *ai, lset_t policy);
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extern void ike_alg_list(void);
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extern void ike_alg_show_connection(struct connection *c, const char *instance);
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extern bool ike_alg_ok_final(u_int ealg, u_int key_len, u_int aalg, u_int group
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, struct alg_info_ike *alg_info_ike);
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extern int ike_alg_init(void);
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#endif /* _IKE_ALG_H */
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