eap_sim_db.h

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#ifndef EAP_SIM_DB_H
#define EAP_SIM_DB_H

#include "eap_common/eap_sim_common.h"

/* Identity prefixes */
#define EAP_SIM_PERMANENT_PREFIX '1'
#define EAP_SIM_PSEUDONYM_PREFIX '3'
#define EAP_SIM_REAUTH_ID_PREFIX '5'
#define EAP_AKA_PERMANENT_PREFIX '0'
#define EAP_AKA_PSEUDONYM_PREFIX '2'
#define EAP_AKA_REAUTH_ID_PREFIX '4'
#define EAP_AKA_PRIME_PERMANENT_PREFIX '6'
#define EAP_AKA_PRIME_PSEUDONYM_PREFIX '7'
#define EAP_AKA_PRIME_REAUTH_ID_PREFIX '8'

enum eap_sim_db_method {
        EAP_SIM_DB_SIM,
        EAP_SIM_DB_AKA,
        EAP_SIM_DB_AKA_PRIME
};

struct eap_sim_db_data;

struct eap_sim_db_data *
eap_sim_db_init(const char *config,
                void (*get_complete_cb)(void *ctx, void *session_ctx),
                void *ctx);

void eap_sim_db_deinit(void *priv);

int eap_sim_db_get_gsm_triplets(struct eap_sim_db_data *data,
                                const char *username, int max_chal,
                                u8 *_rand, u8 *kc, u8 *sres,
                                void *cb_session_ctx);

#define EAP_SIM_DB_FAILURE -1
#define EAP_SIM_DB_PENDING -2

char * eap_sim_db_get_next_pseudonym(struct eap_sim_db_data *data,
                                     enum eap_sim_db_method method);

char * eap_sim_db_get_next_reauth_id(struct eap_sim_db_data *data,
                                     enum eap_sim_db_method method);

int eap_sim_db_add_pseudonym(struct eap_sim_db_data *data,
                             const char *permanent, char *pseudonym);

int eap_sim_db_add_reauth(struct eap_sim_db_data *data, const char *permanent,
                          char *reauth_id, u16 counter, const u8 *mk);
int eap_sim_db_add_reauth_prime(struct eap_sim_db_data *data,
                                const char *permanent,
                                char *reauth_id, u16 counter, const u8 *k_encr,
                                const u8 *k_aut, const u8 *k_re);

const char * eap_sim_db_get_permanent(struct eap_sim_db_data *data,
                                      const char *pseudonym);

struct eap_sim_reauth {
        struct eap_sim_reauth *next;
        char *permanent; /* Permanent username */
        char *reauth_id; /* Fast re-authentication username */
        u16 counter;
        u8 mk[EAP_SIM_MK_LEN];
        u8 k_encr[EAP_SIM_K_ENCR_LEN];
        u8 k_aut[EAP_AKA_PRIME_K_AUT_LEN];
        u8 k_re[EAP_AKA_PRIME_K_RE_LEN];
};

struct eap_sim_reauth *
eap_sim_db_get_reauth_entry(struct eap_sim_db_data *data,
                            const char *reauth_id);

void eap_sim_db_remove_reauth(struct eap_sim_db_data *data,
                              struct eap_sim_reauth *reauth);

int eap_sim_db_get_aka_auth(struct eap_sim_db_data *data, const char *username,
                            u8 *_rand, u8 *autn, u8 *ik, u8 *ck,
                            u8 *res, size_t *res_len, void *cb_session_ctx);

int eap_sim_db_resynchronize(struct eap_sim_db_data *data,
                             const char *username, const u8 *auts,
                             const u8 *_rand);

char * sim_get_username(const u8 *identity, size_t identity_len);

#endif /* EAP_SIM_DB_H */