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// SPDX-License-Identifier: GPL-2.0-or-later
/* key-chain for authentication.
* Copyright (C) 2000 Kunihiro Ishiguro
*/
#ifndef _ZEBRA_KEYCHAIN_H
#define _ZEBRA_KEYCHAIN_H
#include "qobj.h"
#ifdef __cplusplus
extern "C" {
#endif
enum keychain_hash_algo {
KEYCHAIN_ALGO_NULL,
KEYCHAIN_ALGO_MD5,
KEYCHAIN_ALGO_HMAC_SHA1,
KEYCHAIN_ALGO_HMAC_SHA256,
KEYCHAIN_ALGO_HMAC_SHA384,
KEYCHAIN_ALGO_HMAC_SHA512,
KEYCHAIN_ALGO_MAX
};
#define KEYCHAIN_MD5_HASH_SIZE 16
#define KEYCHAIN_HMAC_SHA1_HASH_SIZE 20
#define KEYCHAIN_HMAC_SHA256_HASH_SIZE 32
#define KEYCHAIN_HMAC_SHA384_HASH_SIZE 48
#define KEYCHAIN_HMAC_SHA512_HASH_SIZE 64
#define KEYCHAIN_MAX_HASH_SIZE 64
#define KEYCHAIN_ALGO_MD5_INTERNAL_BLK_SIZE 16
#define KEYCHAIN_ALGO_SHA1_INTERNAL_BLK_SIZE 64
#define KEYCHAIN_ALGO_SHA256_INTERNAL_BLK_SIZE 64
#define KEYCHAIN_ALGO_SHA384_INTERNAL_BLK_SIZE 128
#define KEYCHAIN_ALGO_SHA512_INTERNAL_BLK_SIZE 128
#define KEYCHAIN_ALGO_MAX_INTERNAL_BLK_SIZE 128
struct keychain_algo_info {
enum keychain_hash_algo key;
const char *name;
uint16_t length;
uint16_t block;
const char *desc;
};
extern const struct keychain_algo_info algo_info[];
uint16_t keychain_get_block_size(enum keychain_hash_algo key);
uint16_t keychain_get_hash_len(enum keychain_hash_algo key);
const char *keychain_get_description(enum keychain_hash_algo key);
struct keychain_algo_info
keychain_get_hash_algo_info(enum keychain_hash_algo key);
enum keychain_hash_algo keychain_get_algo_id_by_name(const char *name);
const char *keychain_get_algo_name_by_id(enum keychain_hash_algo key);
struct keychain {
char *name;
struct list *key;
QOBJ_FIELDS;
};
DECLARE_QOBJ_TYPE(keychain);
struct key_range {
time_t start;
time_t end;
uint8_t duration;
};
struct key {
uint32_t index;
char *string;
enum keychain_hash_algo hash_algo;
struct key_range send;
struct key_range accept;
QOBJ_FIELDS;
};
DECLARE_QOBJ_TYPE(key);
extern void keychain_init(void);
extern void keychain_terminate(void);
extern struct keychain *keychain_lookup(const char *);
extern struct key *key_lookup_for_accept(const struct keychain *, uint32_t);
extern struct key *key_match_for_accept(const struct keychain *, const char *);
extern struct key *key_lookup_for_send(const struct keychain *);
const char *keychain_algo_str(enum keychain_hash_algo hash_algo);
#ifdef __cplusplus
}
#endif
#endif /* _ZEBRA_KEYCHAIN_H */
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