217 lines
6.6 KiB
C
217 lines
6.6 KiB
C
/*
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* Wi-Fi Protected Setup - internal definitions
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* Copyright (c) 2008-2012, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef WPS_I_H
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#define WPS_I_H
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#include "wps.h"
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#include "wps_attr_parse.h"
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#include "esp_wifi_crypto_types.h"
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#ifdef CONFIG_WPS_NFC
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struct wps_nfc_pw_token;
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#endif
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/**
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* struct wps_data - WPS registration protocol data
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*
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* This data is stored at the EAP-WSC server/peer method and it is kept for a
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* single registration protocol run.
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*/
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struct wps_data {
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/**
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* wps - Pointer to long term WPS context
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*/
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struct wps_context *wps;
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/**
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* registrar - Whether this end is a Registrar
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*/
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int registrar;
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/**
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* er - Whether the local end is an external registrar
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*/
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int er;
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enum {
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/* Enrollee states */
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SEND_M1, RECV_M2, SEND_M3, RECV_M4, SEND_M5, RECV_M6, SEND_M7,
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RECV_M8, RECEIVED_M2D, WPS_MSG_DONE, RECV_ACK, WPS_FINISHED,
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SEND_WSC_NACK,
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/* Registrar states */
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RECV_M1, SEND_M2, RECV_M3, SEND_M4, RECV_M5, SEND_M6,
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RECV_M7, SEND_M8, RECV_DONE, SEND_M2D, RECV_M2D_ACK
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} state;
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u8 uuid_e[WPS_UUID_LEN];
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u8 uuid_r[WPS_UUID_LEN];
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u8 mac_addr_e[ETH_ALEN];
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u8 nonce_e[WPS_NONCE_LEN];
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u8 nonce_r[WPS_NONCE_LEN];
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u8 psk1[WPS_PSK_LEN];
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u8 psk2[WPS_PSK_LEN];
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u8 snonce[2 * WPS_SECRET_NONCE_LEN];
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u8 peer_hash1[WPS_HASH_LEN];
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u8 peer_hash2[WPS_HASH_LEN];
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struct wpabuf *dh_privkey;
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struct wpabuf *dh_pubkey_e;
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struct wpabuf *dh_pubkey_r;
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u8 authkey[WPS_AUTHKEY_LEN];
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u8 keywrapkey[WPS_KEYWRAPKEY_LEN];
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u8 emsk[WPS_EMSK_LEN];
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struct wpabuf *last_msg;
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u8 *dev_password;
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size_t dev_password_len;
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u16 dev_pw_id;
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int pbc;
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/**
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* request_type - Request Type attribute from (Re)AssocReq
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*/
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u8 request_type;
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/**
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* encr_type - Available encryption types
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*/
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u16 encr_type;
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/**
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* auth_type - Available authentication types
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*/
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u16 auth_type;
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u8 *new_psk;
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size_t new_psk_len;
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int wps_pin_revealed;
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struct wps_credential cred;
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struct wps_device_data peer_dev;
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/**
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* config_error - Configuration Error value to be used in NACK
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*/
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u16 config_error;
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u16 error_indication;
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int ext_reg;
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int int_reg;
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struct wps_credential *new_ap_settings;
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void *dh_ctx;
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void (*ap_settings_cb)(void *ctx, const struct wps_credential *cred);
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void *ap_settings_cb_ctx;
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struct wps_credential *use_cred;
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int use_psk_key;
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u8 p2p_dev_addr[ETH_ALEN]; /* P2P Device Address of the client or
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* 00:00:00:00:00:00 if not a P2p client */
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int pbc_in_m1;
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#ifdef CONFIG_WPS_NFC
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struct wps_nfc_pw_token *nfc_pw_token;
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#endif
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};
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wps_crypto_funcs_t wps_crypto_funcs;
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/* wps_common.c */
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void wps_kdf(const u8 *key, const u8 *label_prefix, size_t label_prefix_len,
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const char *label, u8 *res, size_t res_len);
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int wps_derive_keys(struct wps_data *wps);
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void wps_derive_psk(struct wps_data *wps, const u8 *dev_passwd,
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size_t dev_passwd_len);
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struct wpabuf * wps_decrypt_encr_settings(struct wps_data *wps, const u8 *encr,
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size_t encr_len);
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void wps_fail_event(struct wps_context *wps, enum wps_msg_type msg,
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u16 config_error, u16 error_indication);
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void wps_success_event(struct wps_context *wps);
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void wps_pwd_auth_fail_event(struct wps_context *wps, int enrollee, int part);
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void wps_pbc_overlap_event(struct wps_context *wps);
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void wps_pbc_timeout_event(struct wps_context *wps);
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struct wpabuf * wps_build_wsc_ack(struct wps_data *wps);
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struct wpabuf * wps_build_wsc_nack(struct wps_data *wps);
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typedef enum wps_calc_key_mode {
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WPS_CALC_KEY_NORMAL = 0,
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WPS_CALC_KEY_NO_CALC,
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WPS_CALC_KEY_PRE_CALC,
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WPS_CALC_KEY_MAX,
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} wps_key_mode_t;
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/* wps_attr_build.c */
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int wps_build_public_key(struct wps_data *wps, struct wpabuf *msg, wps_key_mode_t mode);
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int wps_build_req_type(struct wpabuf *msg, enum wps_request_type type);
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int wps_build_resp_type(struct wpabuf *msg, enum wps_response_type type);
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int wps_build_config_methods(struct wpabuf *msg, u16 methods);
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int wps_build_uuid_e(struct wpabuf *msg, const u8 *uuid);
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int wps_build_dev_password_id(struct wpabuf *msg, u16 id);
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int wps_build_config_error(struct wpabuf *msg, u16 err);
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int wps_build_authenticator(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_key_wrap_auth(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_encr_settings(struct wps_data *wps, struct wpabuf *msg,
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struct wpabuf *plain);
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int wps_build_version(struct wpabuf *msg);
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int wps_build_wfa_ext(struct wpabuf *msg, int req_to_enroll,
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const u8 *auth_macs, size_t auth_macs_count);
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int wps_build_msg_type(struct wpabuf *msg, enum wps_msg_type msg_type);
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int wps_build_enrollee_nonce(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_registrar_nonce(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_auth_type_flags(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_encr_type_flags(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_conn_type_flags(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_assoc_state(struct wps_data *wps, struct wpabuf *msg);
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int wps_build_oob_dev_pw(struct wpabuf *msg, u16 dev_pw_id,
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const struct wpabuf *pubkey, const u8 *dev_pw,
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size_t dev_pw_len);
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struct wpabuf * wps_ie_encapsulate(struct wpabuf *data);
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/* wps_attr_process.c */
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int wps_process_authenticator(struct wps_data *wps, const u8 *authenticator,
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const struct wpabuf *msg);
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int wps_process_key_wrap_auth(struct wps_data *wps, struct wpabuf *msg,
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const u8 *key_wrap_auth);
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int wps_process_cred(struct wps_parse_attr *attr,
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struct wps_credential *cred);
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int wps_process_ap_settings(struct wps_parse_attr *attr,
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struct wps_credential *cred);
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/* wps_enrollee.c */
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struct wpabuf * wps_enrollee_get_msg(struct wps_data *wps,
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enum wsc_op_code *op_code);
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enum wps_process_res wps_enrollee_process_msg(struct wps_data *wps,
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enum wsc_op_code op_code,
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const struct wpabuf *msg);
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/* wps_registrar.c */
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struct wpabuf * wps_registrar_get_msg(struct wps_data *wps,
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enum wsc_op_code *op_code);
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enum wps_process_res wps_registrar_process_msg(struct wps_data *wps,
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enum wsc_op_code op_code,
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const struct wpabuf *msg);
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int wps_build_cred(struct wps_data *wps, struct wpabuf *msg);
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int wps_device_store(struct wps_registrar *reg,
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struct wps_device_data *dev, const u8 *uuid);
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void wps_registrar_selected_registrar_changed(struct wps_registrar *reg);
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const u8 * wps_authorized_macs(struct wps_registrar *reg, size_t *count);
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int wps_registrar_pbc_overlap(struct wps_registrar *reg,
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const u8 *addr, const u8 *uuid_e);
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#ifdef CONFIG_WPS_NFC
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void wps_registrar_remove_nfc_pw_token(struct wps_registrar *reg,
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struct wps_nfc_pw_token *token);
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#endif
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#endif /* WPS_I_H */
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