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      1 /*
      2  * hostapd / EAP-SIM database/authenticator gateway
      3  * Copyright (c) 2005-2007, Jouni Malinen <j (at) 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 #include "eap_common/eap_sim_common.h"
     19 
     20 /* Identity prefixes */
     21 #define EAP_SIM_PERMANENT_PREFIX '1'
     22 #define EAP_SIM_PSEUDONYM_PREFIX '3'
     23 #define EAP_SIM_REAUTH_ID_PREFIX '5'
     24 #define EAP_AKA_PERMANENT_PREFIX '0'
     25 #define EAP_AKA_PSEUDONYM_PREFIX '2'
     26 #define EAP_AKA_REAUTH_ID_PREFIX '4'
     27 
     28 void * eap_sim_db_init(const char *config,
     29 		       void (*get_complete_cb)(void *ctx, void *session_ctx),
     30 		       void *ctx);
     31 
     32 void eap_sim_db_deinit(void *priv);
     33 
     34 int eap_sim_db_get_gsm_triplets(void *priv, const u8 *identity,
     35 				size_t identity_len, int max_chal,
     36 				u8 *_rand, u8 *kc, u8 *sres,
     37 				void *cb_session_ctx);
     38 
     39 #define EAP_SIM_DB_FAILURE -1
     40 #define EAP_SIM_DB_PENDING -2
     41 
     42 int eap_sim_db_identity_known(void *priv, const u8 *identity,
     43 			      size_t identity_len);
     44 
     45 char * eap_sim_db_get_next_pseudonym(void *priv, int aka);
     46 
     47 char * eap_sim_db_get_next_reauth_id(void *priv, int aka);
     48 
     49 int eap_sim_db_add_pseudonym(void *priv, const u8 *identity,
     50 			     size_t identity_len, char *pseudonym);
     51 
     52 int eap_sim_db_add_reauth(void *priv, const u8 *identity,
     53 			  size_t identity_len, char *reauth_id, u16 counter,
     54 			  const u8 *mk);
     55 int eap_sim_db_add_reauth_prime(void *priv, const u8 *identity,
     56 				size_t identity_len, char *reauth_id,
     57 				u16 counter, const u8 *k_encr, const u8 *k_aut,
     58 				const u8 *k_re);
     59 
     60 const u8 * eap_sim_db_get_permanent(void *priv, const u8 *identity,
     61 				    size_t identity_len, size_t *len);
     62 
     63 struct eap_sim_reauth {
     64 	struct eap_sim_reauth *next;
     65 	u8 *identity;
     66 	size_t identity_len;
     67 	char *reauth_id;
     68 	u16 counter;
     69 	int aka_prime;
     70 	u8 mk[EAP_SIM_MK_LEN];
     71 	u8 k_encr[EAP_SIM_K_ENCR_LEN];
     72 	u8 k_aut[EAP_AKA_PRIME_K_AUT_LEN];
     73 	u8 k_re[EAP_AKA_PRIME_K_RE_LEN];
     74 };
     75 
     76 struct eap_sim_reauth *
     77 eap_sim_db_get_reauth_entry(void *priv, const u8 *identity,
     78 			    size_t identity_len);
     79 
     80 void eap_sim_db_remove_reauth(void *priv, struct eap_sim_reauth *reauth);
     81 
     82 int eap_sim_db_get_aka_auth(void *priv, const u8 *identity,
     83 			    size_t identity_len, u8 *_rand, u8 *autn, u8 *ik,
     84 			    u8 *ck, u8 *res, size_t *res_len,
     85 			    void *cb_session_ctx);
     86 
     87 int eap_sim_db_resynchronize(void *priv, const u8 *identity,
     88 			     size_t identity_len, const u8 *auts,
     89 			     const u8 *_rand);
     90 
     91 #endif /* EAP_SIM_DB_H */
     92