| #ifndef _OSMOCRYPTO_AUTH_H |
| #define _OSMOCRYPTO_AUTH_H |
| |
| #include <stdint.h> |
| |
| #include <osmocom/core/linuxlist.h> |
| |
| /*! \brief Authentication Type */ |
| enum osmo_sub_auth_type { |
| OSMO_AUTH_TYPE_NONE = 0x00, |
| OSMO_AUTH_TYPE_GSM = 0x01, |
| OSMO_AUTH_TYPE_UMTS = 0x02, |
| }; |
| |
| /*! \brief Authentication Algorithm */ |
| enum osmo_auth_algo { |
| OSMO_AUTH_ALG_NONE, |
| OSMO_AUTH_ALG_COMP128v1, |
| OSMO_AUTH_ALG_COMP128v2, |
| OSMO_AUTH_ALG_COMP128v3, |
| OSMO_AUTH_ALG_XOR, |
| OSMO_AUTH_ALG_MILENAGE, |
| _OSMO_AUTH_ALG_NUM, |
| }; |
| |
| /*! \brief permanent (secret) subscriber auth data */ |
| struct osmo_sub_auth_data { |
| enum osmo_sub_auth_type type; |
| enum osmo_auth_algo algo; |
| union { |
| struct { |
| uint8_t opc[16]; |
| uint8_t k[16]; |
| uint8_t amf[2]; |
| uint64_t sqn; |
| int opc_is_op; |
| } umts; |
| struct { |
| uint8_t ki[16]; |
| } gsm; |
| } u; |
| }; |
| |
| /* data structure describing a computed auth vector, generated by AuC */ |
| struct osmo_auth_vector { |
| uint8_t rand[16]; |
| uint8_t autn[16]; |
| uint8_t ck[16]; |
| uint8_t ik[16]; |
| uint8_t res[16]; |
| uint8_t res_len; |
| uint8_t kc[8]; |
| uint8_t sres[4]; |
| uint32_t auth_types; /*!< bitmask of OSMO_AUTH_TYPE_* */ |
| }; |
| |
| /* \brief An implementation of an authentication algorithm */ |
| struct osmo_auth_impl { |
| struct llist_head list; |
| enum osmo_auth_algo algo; |
| const char *name; |
| unsigned int priority; |
| |
| int (*gen_vec)(struct osmo_auth_vector *vec, |
| struct osmo_sub_auth_data *aud, |
| const uint8_t *_rand); |
| |
| int (*gen_vec_auts)(struct osmo_auth_vector *vec, |
| struct osmo_sub_auth_data *aud, |
| const uint8_t *rand_auts, const uint8_t *auts, |
| const uint8_t *_rand); |
| }; |
| |
| int osmo_auth_gen_vec(struct osmo_auth_vector *vec, |
| struct osmo_sub_auth_data *aud, const uint8_t *_rand); |
| |
| int osmo_auth_gen_vec_auts(struct osmo_auth_vector *vec, |
| struct osmo_sub_auth_data *aud, |
| const uint8_t *rand_auts, const uint8_t *auts, |
| const uint8_t *_rand); |
| |
| int osmo_auth_register(struct osmo_auth_impl *impl); |
| |
| int osmo_auth_load(const char *path); |
| |
| int osmo_auth_supported(enum osmo_auth_algo algo); |
| |
| const char *osmo_auth_alg_name(enum osmo_auth_algo alg); |
| enum osmo_auth_algo osmo_auth_alg_parse(const char *name); |
| |
| #endif /* _OSMOCRYPTO_AUTH_H */ |