1/*
2 * hostapd / EAP-SIM database/authenticator gateway
3 * Copyright (c) 2005-2007, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#ifndef EAP_SIM_DB_H
16#define EAP_SIM_DB_H
17
18#ifdef EAP_SIM
19
20#include "eap_common/eap_sim_common.h"
21
22/* Identity prefixes */
23#define EAP_SIM_PERMANENT_PREFIX '1'
24#define EAP_SIM_PSEUDONYM_PREFIX '3'
25#define EAP_SIM_REAUTH_ID_PREFIX '5'
26#define EAP_AKA_PERMANENT_PREFIX '0'
27#define EAP_AKA_PSEUDONYM_PREFIX '2'
28#define EAP_AKA_REAUTH_ID_PREFIX '4'
29
30void * eap_sim_db_init(const char *config,
31		       void (*get_complete_cb)(void *ctx, void *session_ctx),
32		       void *ctx);
33
34void eap_sim_db_deinit(void *priv);
35
36int eap_sim_db_get_gsm_triplets(void *priv, const u8 *identity,
37				size_t identity_len, int max_chal,
38				u8 *_rand, u8 *kc, u8 *sres,
39				void *cb_session_ctx);
40
41#define EAP_SIM_DB_FAILURE -1
42#define EAP_SIM_DB_PENDING -2
43
44int eap_sim_db_identity_known(void *priv, const u8 *identity,
45			      size_t identity_len);
46
47char * eap_sim_db_get_next_pseudonym(void *priv, int aka);
48
49char * eap_sim_db_get_next_reauth_id(void *priv, int aka);
50
51int eap_sim_db_add_pseudonym(void *priv, const u8 *identity,
52			     size_t identity_len, char *pseudonym);
53
54int eap_sim_db_add_reauth(void *priv, const u8 *identity,
55			  size_t identity_len, char *reauth_id, u16 counter,
56			  const u8 *mk);
57int eap_sim_db_add_reauth_prime(void *priv, const u8 *identity,
58				size_t identity_len, char *reauth_id,
59				u16 counter, const u8 *k_encr, const u8 *k_aut,
60				const u8 *k_re);
61
62const u8 * eap_sim_db_get_permanent(void *priv, const u8 *identity,
63				    size_t identity_len, size_t *len);
64
65struct eap_sim_reauth {
66	struct eap_sim_reauth *next;
67	u8 *identity;
68	size_t identity_len;
69	char *reauth_id;
70	u16 counter;
71	int aka_prime;
72	u8 mk[EAP_SIM_MK_LEN];
73	u8 k_encr[EAP_SIM_K_ENCR_LEN];
74	u8 k_aut[EAP_AKA_PRIME_K_AUT_LEN];
75	u8 k_re[EAP_AKA_PRIME_K_RE_LEN];
76};
77
78struct eap_sim_reauth *
79eap_sim_db_get_reauth_entry(void *priv, const u8 *identity,
80			    size_t identity_len);
81
82void eap_sim_db_remove_reauth(void *priv, struct eap_sim_reauth *reauth);
83
84int eap_sim_db_get_aka_auth(void *priv, const u8 *identity,
85			    size_t identity_len, u8 *_rand, u8 *autn, u8 *ik,
86			    u8 *ck, u8 *res, size_t *res_len,
87			    void *cb_session_ctx);
88
89int eap_sim_db_resynchronize(void *priv, const u8 *identity,
90			     size_t identity_len, const u8 *auts,
91			     const u8 *_rand);
92
93#else /* EAP_SIM */
94static inline void *
95eap_sim_db_init(const char *config,
96		void (*get_complete_cb)(void *ctx, void *session_ctx),
97		void *ctx)
98{
99	return (void *) 1;
100}
101
102static inline void eap_sim_db_deinit(void *priv)
103{
104}
105#endif /* EAP_SIM */
106
107#endif /* EAP_SIM_DB_H */
108