src/eap_server/eap_sim_db.h

   1 /*
   2  * hostapd / EAP-SIM database/authenticator gateway
   3  * Copyright (c) 2005-2008, 2012, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #ifndef EAP_SIM_DB_H
  10 #define EAP_SIM_DB_H
  11
  12 #include "eap_common/eap_sim_common.h"
  13
  14 /* Identity prefixes */
  15 #define EAP_SIM_PERMANENT_PREFIX '1'
  16 #define EAP_SIM_PSEUDONYM_PREFIX '3'
  17 #define EAP_SIM_REAUTH_ID_PREFIX '5'
  18 #define EAP_AKA_PERMANENT_PREFIX '0'
  19 #define EAP_AKA_PSEUDONYM_PREFIX '2'
  20 #define EAP_AKA_REAUTH_ID_PREFIX '4'
  21 #define EAP_AKA_PRIME_PERMANENT_PREFIX '6'
  22 #define EAP_AKA_PRIME_PSEUDONYM_PREFIX '7'
  23 #define EAP_AKA_PRIME_REAUTH_ID_PREFIX '8'
  24
  25 enum eap_sim_db_method {
  26         EAP_SIM_DB_SIM,
  27         EAP_SIM_DB_AKA,
  28         EAP_SIM_DB_AKA_PRIME
  29 };
  30
  31 struct eap_sim_db_data;
  32
  33 struct eap_sim_db_data *
  34 eap_sim_db_init(const char *config, unsigned int db_timeout,
  35                 void (*get_complete_cb)(void *ctx, void *session_ctx),
  36                 void *ctx);
  37
  38 void eap_sim_db_deinit(void *priv);
  39
  40 int eap_sim_db_get_gsm_triplets(struct eap_sim_db_data *data,
  41                                 const char *username, int max_chal,
  42                                 u8 *_rand, u8 *kc, u8 *sres,
  43                                 void *cb_session_ctx);
  44
  45 #define EAP_SIM_DB_FAILURE -1
  46 #define EAP_SIM_DB_PENDING -2
  47
  48 char * eap_sim_db_get_next_pseudonym(struct eap_sim_db_data *data,
  49                                      enum eap_sim_db_method method);
  50
  51 char * eap_sim_db_get_next_reauth_id(struct eap_sim_db_data *data,
  52                                      enum eap_sim_db_method method);
  53
  54 int eap_sim_db_add_pseudonym(struct eap_sim_db_data *data,
  55                              const char *permanent, char *pseudonym);
  56
  57 int eap_sim_db_add_reauth(struct eap_sim_db_data *data, const char *permanent,
  58                           char *reauth_id, u16 counter, const u8 *mk);
  59 int eap_sim_db_add_reauth_prime(struct eap_sim_db_data *data,
  60                                 const char *permanent,
  61                                 char *reauth_id, u16 counter, const u8 *k_encr,
  62                                 const u8 *k_aut, const u8 *k_re);
  63
  64 const char * eap_sim_db_get_permanent(struct eap_sim_db_data *data,
  65                                       const char *pseudonym);
  66
  67 struct eap_sim_reauth {
  68         struct eap_sim_reauth *next;
  69         char *permanent; /* Permanent username */
  70         char *reauth_id; /* Fast re-authentication username */
  71         u16 counter;
  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
  78 struct eap_sim_reauth *
  79 eap_sim_db_get_reauth_entry(struct eap_sim_db_data *data,
  80                             const char *reauth_id);
  81
  82 void eap_sim_db_remove_reauth(struct eap_sim_db_data *data,
  83                               struct eap_sim_reauth *reauth);
  84
  85 int eap_sim_db_get_aka_auth(struct eap_sim_db_data *data, const char *username,
  86                             u8 *_rand, u8 *autn, u8 *ik, u8 *ck,
  87                             u8 *res, size_t *res_len, void *cb_session_ctx);
  88
  89 int eap_sim_db_resynchronize(struct eap_sim_db_data *data,
  90                              const char *username, const u8 *auts,
  91                              const u8 *_rand);
  92
  93 char * sim_get_username(const u8 *identity, size_t identity_len);
  94
  95 #endif /* EAP_SIM_DB_H */