1 /* 2 * DPP module internal definitions 3 * Copyright (c) 2017, Qualcomm Atheros, Inc. 4 * Copyright (c) 2018-2020, The Linux Foundation 5 * 6 * This software may be distributed under the terms of the BSD license. 7 * See README for more details. 8 */ 9 10 #ifndef DPP_I_H 11 #define DPP_I_H 12 13 #ifdef CONFIG_DPP 14 15 struct dpp_global { 16 void *msg_ctx; 17 struct dl_list bootstrap; /* struct dpp_bootstrap_info */ 18 struct dl_list configurator; /* struct dpp_configurator */ 19 #ifdef CONFIG_DPP2 20 struct dl_list controllers; /* struct dpp_relay_controller */ 21 struct dpp_controller *controller; 22 struct dl_list tcp_init; /* struct dpp_connection */ 23 void *cb_ctx; 24 int (*process_conf_obj)(void *ctx, struct dpp_authentication *auth); 25 void (*remove_bi)(void *ctx, struct dpp_bootstrap_info *bi); 26 #endif /* CONFIG_DPP2 */ 27 }; 28 29 /* dpp.c */ 30 31 void dpp_build_attr_status(struct wpabuf *msg, enum dpp_status_error status); 32 void dpp_build_attr_r_bootstrap_key_hash(struct wpabuf *msg, const u8 *hash); 33 unsigned int dpp_next_id(struct dpp_global *dpp); 34 struct wpabuf * dpp_build_conn_status(enum dpp_status_error result, 35 const u8 *ssid, size_t ssid_len, 36 const char *channel_list); 37 struct json_token * dpp_parse_own_connector(const char *own_connector); 38 int dpp_connector_match_groups(struct json_token *own_root, 39 struct json_token *peer_root, bool reconfig); 40 int dpp_build_jwk(struct wpabuf *buf, const char *name, 41 struct crypto_ec_key *key, const char *kid, 42 const struct dpp_curve_params *curve); 43 struct crypto_ec_key * dpp_parse_jwk(struct json_token *jwk, 44 const struct dpp_curve_params **key_curve); 45 int dpp_prepare_channel_list(struct dpp_authentication *auth, 46 unsigned int neg_freq, 47 struct hostapd_hw_modes *own_modes, u16 num_modes); 48 void dpp_auth_fail(struct dpp_authentication *auth, const char *txt); 49 int dpp_gen_uri(struct dpp_bootstrap_info *bi); 50 void dpp_write_adv_proto(struct wpabuf *buf); 51 void dpp_write_gas_query(struct wpabuf *buf, struct wpabuf *query); 52 53 /* dpp_backup.c */ 54 55 void dpp_free_asymmetric_key(struct dpp_asymmetric_key *key); 56 struct wpabuf * dpp_build_enveloped_data(struct dpp_authentication *auth); 57 int dpp_conf_resp_env_data(struct dpp_authentication *auth, 58 const u8 *env_data, size_t env_data_len); 59 60 /* dpp_crypto.c */ 61 62 struct dpp_signed_connector_info { 63 unsigned char *payload; 64 size_t payload_len; 65 }; 66 67 enum dpp_status_error 68 dpp_process_signed_connector(struct dpp_signed_connector_info *info, 69 struct crypto_ec_key *csign_pub, 70 const char *connector); 71 enum dpp_status_error 72 dpp_check_signed_connector(struct dpp_signed_connector_info *info, 73 const u8 *csign_key, size_t csign_key_len, 74 const u8 *peer_connector, size_t peer_connector_len); 75 const struct dpp_curve_params * dpp_get_curve_name(const char *name); 76 const struct dpp_curve_params * dpp_get_curve_jwk_crv(const char *name); 77 const struct dpp_curve_params * dpp_get_curve_ike_group(u16 group); 78 int dpp_bi_pubkey_hash(struct dpp_bootstrap_info *bi, 79 const u8 *data, size_t data_len); 80 struct crypto_ec_key * dpp_set_pubkey_point(struct crypto_ec_key *group_key, 81 const u8 *buf, size_t len); 82 int dpp_hkdf_expand(size_t hash_len, const u8 *secret, size_t secret_len, 83 const char *label, u8 *out, size_t outlen); 84 int dpp_hmac_vector(size_t hash_len, const u8 *key, size_t key_len, 85 size_t num_elem, const u8 *addr[], const size_t *len, 86 u8 *mac); 87 int dpp_ecdh(struct crypto_ec_key *own, struct crypto_ec_key *peer, 88 u8 *secret, size_t *secret_len); 89 void dpp_debug_print_key(const char *title, struct crypto_ec_key *key); 90 int dpp_pbkdf2(size_t hash_len, const u8 *password, size_t password_len, 91 const u8 *salt, size_t salt_len, unsigned int iterations, 92 u8 *buf, size_t buflen); 93 int dpp_get_subject_public_key(struct dpp_bootstrap_info *bi, 94 const u8 *data, size_t data_len); 95 int dpp_bootstrap_key_hash(struct dpp_bootstrap_info *bi); 96 int dpp_keygen(struct dpp_bootstrap_info *bi, const char *curve, 97 const u8 *privkey, size_t privkey_len); 98 struct crypto_ec_key * dpp_set_keypair(const struct dpp_curve_params **curve, 99 const u8 *privkey, size_t privkey_len); 100 struct crypto_ec_key * dpp_gen_keypair(const struct dpp_curve_params *curve); 101 int dpp_derive_k1(const u8 *Mx, size_t Mx_len, u8 *k1, unsigned int hash_len); 102 int dpp_derive_k2(const u8 *Nx, size_t Nx_len, u8 *k2, unsigned int hash_len); 103 int dpp_derive_bk_ke(struct dpp_authentication *auth); 104 int dpp_gen_r_auth(struct dpp_authentication *auth, u8 *r_auth); 105 int dpp_gen_i_auth(struct dpp_authentication *auth, u8 *i_auth); 106 int dpp_auth_derive_l_responder(struct dpp_authentication *auth); 107 int dpp_auth_derive_l_initiator(struct dpp_authentication *auth); 108 int dpp_derive_pmk(const u8 *Nx, size_t Nx_len, u8 *pmk, unsigned int hash_len); 109 int dpp_derive_pmkid(const struct dpp_curve_params *curve, 110 struct crypto_ec_key *own_key, 111 struct crypto_ec_key *peer_key, u8 *pmkid); 112 struct crypto_ec_point * 113 dpp_pkex_derive_Qi(const struct dpp_curve_params *curve, const u8 *mac_init, 114 const char *code, const char *identifier, 115 struct crypto_ec **ret_ec); 116 struct crypto_ec_point * 117 dpp_pkex_derive_Qr(const struct dpp_curve_params *curve, const u8 *mac_resp, 118 const char *code, const char *identifier, 119 struct crypto_ec **ret_ec); 120 int dpp_pkex_derive_z(const u8 *mac_init, const u8 *mac_resp, 121 u8 ver_init, u8 ver_resp, 122 const u8 *Mx, size_t Mx_len, 123 const u8 *Nx, size_t Nx_len, 124 const char *code, 125 const u8 *Kx, size_t Kx_len, 126 u8 *z, unsigned int hash_len); 127 int dpp_reconfig_derive_ke_responder(struct dpp_authentication *auth, 128 const u8 *net_access_key, 129 size_t net_access_key_len, 130 struct json_token *peer_net_access_key); 131 int dpp_reconfig_derive_ke_initiator(struct dpp_authentication *auth, 132 const u8 *r_proto, u16 r_proto_len, 133 struct json_token *net_access_key); 134 struct crypto_ec_point * dpp_decrypt_e_id(struct crypto_ec_key *ppkey, 135 struct crypto_ec_key *a_nonce, 136 struct crypto_ec_key *e_prime_id); 137 char * dpp_sign_connector(struct dpp_configurator *conf, 138 const struct wpabuf *dppcon); 139 int dpp_test_gen_invalid_key(struct wpabuf *msg, 140 const struct dpp_curve_params *curve); 141 142 struct dpp_reconfig_id { 143 struct crypto_ec *ec; 144 struct crypto_ec_point *e_id; /* E-id */ 145 struct crypto_ec_key *csign; 146 struct crypto_ec_key *a_nonce; /* A-NONCE */ 147 struct crypto_ec_key *e_prime_id; /* E'-id */ 148 struct crypto_ec_key *pp_key; 149 }; 150 151 /* dpp_tcp.c */ 152 153 void dpp_controller_conn_status_result_wait_timeout(void *eloop_ctx, 154 void *timeout_ctx); 155 void dpp_tcp_init_flush(struct dpp_global *dpp); 156 void dpp_relay_flush_controllers(struct dpp_global *dpp); 157 158 #endif /* CONFIG_DPP */ 159 #endif /* DPP_I_H */ 160