2 * Wi-Fi Protected Setup
3 * Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
21 * enum wsc_op_code - EAP-WSC OP-Code values
24 WSC_UPnP = 0 /* No OP Code in UPnP transport */,
34 struct upnp_wps_device_sm;
37 * struct wps_credential - WPS Credential
39 * @ssid_len: Length of SSID
40 * @auth_type: Authentication Type (WPS_AUTH_OPEN, .. flags)
41 * @encr_type: Encryption Type (WPS_ENCR_NONE, .. flags)
44 * @key_len: Key length in octets
45 * @mac_addr: MAC address of the peer
46 * @cred_attr: Unparsed Credential attribute data (used only in cred_cb());
47 * this may be %NULL, if not used
48 * @cred_attr_len: Length of cred_attr in octets
50 struct wps_credential {
58 u8 mac_addr[ETH_ALEN];
64 * struct wps_device_data - WPS Device Data
65 * @mac_addr: Device MAC address
66 * @device_name: Device Name (0..32 octets encoded in UTF-8)
67 * @manufacturer: Manufacturer (0..64 octets encoded in UTF-8)
68 * @model_name: Model Name (0..32 octets encoded in UTF-8)
69 * @model_number: Model Number (0..32 octets encoded in UTF-8)
70 * @serial_number: Serial Number (0..32 octets encoded in UTF-8)
71 * @categ: Primary Device Category
72 * @oui: Primary Device OUI
73 * @sub_categ: Primary Device Sub-Category
74 * @os_version: OS Version
75 * @rf_bands: RF bands (WPS_RF_24GHZ, WPS_RF_50GHZ flags)
77 struct wps_device_data {
78 u8 mac_addr[ETH_ALEN];
91 struct oob_conf_data {
93 OOB_METHOD_UNKNOWN = 0,
98 struct wpabuf *dev_password;
99 struct wpabuf *pubkey_hash;
103 * struct wps_config - WPS configuration for a single registration protocol run
107 * wps - Pointer to long term WPS context
109 struct wps_context *wps;
112 * registrar - Whether this end is a Registrar
117 * pin - Enrollee Device Password (%NULL for Registrar or PBC)
122 * pin_len - Length on pin in octets
127 * pbc - Whether this is protocol run uses PBC
132 * assoc_wps_ie: (Re)AssocReq WPS IE (in AP; %NULL if not AP)
134 const struct wpabuf *assoc_wps_ie;
137 * new_ap_settings - New AP settings (%NULL if not used)
139 * This parameter provides new AP settings when using a wireless
140 * stations as a Registrar to configure the AP. %NULL means that AP
141 * will not be reconfigured, i.e., the station will only learn the
142 * current AP settings by using AP PIN.
144 const struct wps_credential *new_ap_settings;
147 * peer_addr: MAC address of the peer in AP; %NULL if not AP
152 struct wps_data * wps_init(const struct wps_config *cfg);
154 void wps_deinit(struct wps_data *data);
157 * enum wps_process_res - WPS message processing result
159 enum wps_process_res {
161 * WPS_DONE - Processing done
166 * WPS_CONTINUE - Processing continues
171 * WPS_FAILURE - Processing failed
176 * WPS_PENDING - Processing continues, but waiting for an external
177 * event (e.g., UPnP message from an external Registrar)
181 enum wps_process_res wps_process_msg(struct wps_data *wps,
182 enum wsc_op_code op_code,
183 const struct wpabuf *msg);
185 struct wpabuf * wps_get_msg(struct wps_data *wps, enum wsc_op_code *op_code);
187 int wps_is_selected_pbc_registrar(const struct wpabuf *msg);
188 int wps_is_selected_pin_registrar(const struct wpabuf *msg);
189 const u8 * wps_get_uuid_e(const struct wpabuf *msg);
191 struct wpabuf * wps_build_assoc_req_ie(enum wps_request_type req_type);
192 struct wpabuf * wps_build_probe_req_ie(int pbc, struct wps_device_data *dev,
194 enum wps_request_type req_type);
198 * struct wps_registrar_config - WPS Registrar configuration
200 struct wps_registrar_config {
202 * new_psk_cb - Callback for new PSK
203 * @ctx: Higher layer context data (cb_ctx)
204 * @mac_addr: MAC address of the Enrollee
206 * @psk_len: The length of psk in octets
207 * Returns: 0 on success, -1 on failure
209 * This callback is called when a new per-device PSK is provisioned.
211 int (*new_psk_cb)(void *ctx, const u8 *mac_addr, const u8 *psk,
215 * set_ie_cb - Callback for WPS IE changes
216 * @ctx: Higher layer context data (cb_ctx)
217 * @beacon_ie: WPS IE for Beacon
218 * @beacon_ie_len: WPS IE length for Beacon
219 * @probe_resp_ie: WPS IE for Probe Response
220 * @probe_resp_ie_len: WPS IE length for Probe Response
221 * Returns: 0 on success, -1 on failure
223 * This callback is called whenever the WPS IE in Beacon or Probe
224 * Response frames needs to be changed (AP only).
226 int (*set_ie_cb)(void *ctx, const u8 *beacon_ie, size_t beacon_ie_len,
227 const u8 *probe_resp_ie, size_t probe_resp_ie_len);
230 * pin_needed_cb - Callback for requesting a PIN
231 * @ctx: Higher layer context data (cb_ctx)
232 * @uuid_e: UUID-E of the unknown Enrollee
233 * @dev: Device Data from the unknown Enrollee
235 * This callback is called whenever an unknown Enrollee requests to use
236 * PIN method and a matching PIN (Device Password) is not found in
239 void (*pin_needed_cb)(void *ctx, const u8 *uuid_e,
240 const struct wps_device_data *dev);
243 * reg_success_cb - Callback for reporting successful registration
244 * @ctx: Higher layer context data (cb_ctx)
245 * @mac_addr: MAC address of the Enrollee
246 * @uuid_e: UUID-E of the Enrollee
248 * This callback is called whenever an Enrollee completes registration
251 void (*reg_success_cb)(void *ctx, const u8 *mac_addr,
255 * cb_ctx: Higher layer context data for Registrar callbacks
260 * skip_cred_build: Do not build credential
262 * This option can be used to disable internal code that builds
263 * Credential attribute into M8 based on the current network
264 * configuration and Enrollee capabilities. The extra_cred data will
265 * then be used as the Credential(s).
270 * extra_cred: Additional Credential attribute(s)
272 * This optional data (set to %NULL to disable) can be used to add
273 * Credential attribute(s) for other networks into M8. If
274 * skip_cred_build is set, this will also override the automatically
275 * generated Credential attribute.
277 const u8 *extra_cred;
280 * extra_cred_len: Length of extra_cred in octets
282 size_t extra_cred_len;
285 * disable_auto_conf - Disable auto-configuration on first registration
287 * By default, the AP that is started in not configured state will
288 * generate a random PSK and move to configured state when the first
289 * registration protocol run is completed successfully. This option can
290 * be used to disable this functionality and leave it up to an external
291 * program to take care of configuration. This requires the extra_cred
292 * to be set with a suitable Credential and skip_cred_build being used.
294 int disable_auto_conf;
297 * static_wep_only - Whether the BSS supports only static WEP
304 * enum wps_event - WPS event types
308 * WPS_EV_M2D - M2D received (Registrar did not know us)
313 * WPS_EV_FAIL - Registration failed
318 * WPS_EV_SUCCESS - Registration succeeded
323 * WPS_EV_PWD_AUTH_FAIL - Password authentication failed
325 WPS_EV_PWD_AUTH_FAIL,
328 * WPS_EV_PBC_OVERLAP - PBC session overlap detected
333 * WPS_EV_PBC_TIMEOUT - PBC walktime expired before protocol run start
339 * union wps_event_data - WPS event data
341 union wps_event_data {
343 * struct wps_event_m2d - M2D event data
345 struct wps_event_m2d {
347 const u8 *manufacturer;
348 size_t manufacturer_len;
349 const u8 *model_name;
350 size_t model_name_len;
351 const u8 *model_number;
352 size_t model_number_len;
353 const u8 *serial_number;
354 size_t serial_number_len;
357 const u8 *primary_dev_type; /* 8 octets */
363 * struct wps_event_fail - Registration failure information
364 * @msg: enum wps_msg_type
366 struct wps_event_fail {
370 struct wps_event_pwd_auth_fail {
377 * struct upnp_pending_message - Pending PutWLANResponse messages
378 * @next: Pointer to next pending message or %NULL
379 * @addr: NewWLANEventMAC
381 * @type: Message Type
383 struct upnp_pending_message {
384 struct upnp_pending_message *next;
387 enum wps_msg_type type;
391 * struct wps_context - Long term WPS context data
393 * This data is stored at the higher layer Authenticator or Supplicant data
394 * structures and it is maintained over multiple registration protocol runs.
398 * ap - Whether the local end is an access point
403 * registrar - Pointer to WPS registrar data from wps_registrar_init()
405 struct wps_registrar *registrar;
408 * wps_state - Current WPS state
410 enum wps_state wps_state;
413 * ap_setup_locked - Whether AP setup is locked (only used at AP)
425 * This SSID is used by the Registrar to fill in information for
426 * Credentials. In addition, AP uses it when acting as an Enrollee to
427 * notify Registrar of the current configuration.
432 * ssid_len - Length of ssid in octets
437 * dev - Own WPS device data
439 struct wps_device_data dev;
442 * oob_conf - OOB Config data
444 struct oob_conf_data oob_conf;
447 * oob_dev_pw_id - OOB Device password id
452 * dh_ctx - Context data for Diffie-Hellman operation
457 * dh_privkey - Diffie-Hellman private key
459 struct wpabuf *dh_privkey;
462 * dh_pubkey_oob - Diffie-Hellman public key
464 struct wpabuf *dh_pubkey;
467 * config_methods - Enabled configuration methods
469 * Bit field of WPS_CONFIG_*
474 * encr_types - Enabled encryption types (bit field of WPS_ENCR_*)
479 * auth_types - Authentication types (bit field of WPS_AUTH_*)
484 * network_key - The current Network Key (PSK) or %NULL to generate new
486 * If %NULL, Registrar will generate per-device PSK. In addition, AP
487 * uses this when acting as an Enrollee to notify Registrar of the
488 * current configuration.
493 * network_key_len - Length of network_key in octets
495 size_t network_key_len;
498 * ap_settings - AP Settings override for M7 (only used at AP)
500 * If %NULL, AP Settings attributes will be generated based on the
501 * current network configuration.
506 * ap_settings_len - Length of ap_settings in octets
508 size_t ap_settings_len;
511 * friendly_name - Friendly Name (required for UPnP)
516 * manufacturer_url - Manufacturer URL (optional for UPnP)
518 char *manufacturer_url;
521 * model_description - Model Description (recommended for UPnP)
523 char *model_description;
526 * model_url - Model URL (optional for UPnP)
531 * upc - Universal Product Code (optional for UPnP)
536 * cred_cb - Callback to notify that new Credentials were received
537 * @ctx: Higher layer context data (cb_ctx)
538 * @cred: The received Credential
539 * Return: 0 on success, -1 on failure
541 int (*cred_cb)(void *ctx, const struct wps_credential *cred);
544 * event_cb - Event callback (state information about progress)
545 * @ctx: Higher layer context data (cb_ctx)
549 void (*event_cb)(void *ctx, enum wps_event event,
550 union wps_event_data *data);
553 * cb_ctx: Higher layer context data for callbacks
557 struct upnp_wps_device_sm *wps_upnp;
559 /* Pending messages from UPnP PutWLANResponse */
560 struct upnp_pending_message *upnp_msgs;
563 struct oob_device_data {
566 void * (*init_func)(struct wps_context *, struct oob_device_data *,
568 struct wpabuf * (*read_func)(void *);
569 int (*write_func)(void *, struct wpabuf *);
570 void (*deinit_func)(void *);
573 struct oob_nfc_device_data {
574 int (*init_func)(char *);
575 void * (*read_func)(size_t *);
576 int (*write_func)(void *, size_t);
577 void (*deinit_func)(void);
580 struct wps_registrar *
581 wps_registrar_init(struct wps_context *wps,
582 const struct wps_registrar_config *cfg);
583 void wps_registrar_deinit(struct wps_registrar *reg);
584 int wps_registrar_add_pin(struct wps_registrar *reg, const u8 *uuid,
585 const u8 *pin, size_t pin_len, int timeout);
586 int wps_registrar_invalidate_pin(struct wps_registrar *reg, const u8 *uuid);
587 int wps_registrar_unlock_pin(struct wps_registrar *reg, const u8 *uuid);
588 int wps_registrar_button_pushed(struct wps_registrar *reg);
589 void wps_registrar_probe_req_rx(struct wps_registrar *reg, const u8 *addr,
590 const struct wpabuf *wps_data);
591 int wps_registrar_update_ie(struct wps_registrar *reg);
592 int wps_registrar_set_selected_registrar(struct wps_registrar *reg,
593 const struct wpabuf *msg);
594 int wps_registrar_get_info(struct wps_registrar *reg, const u8 *addr,
595 char *buf, size_t buflen);
597 unsigned int wps_pin_checksum(unsigned int pin);
598 unsigned int wps_pin_valid(unsigned int pin);
599 unsigned int wps_generate_pin(void);
600 void wps_free_pending_msgs(struct upnp_pending_message *msgs);
602 struct oob_device_data * wps_get_oob_device(char *device_type);
603 struct oob_nfc_device_data * wps_get_oob_nfc_device(char *device_name);
604 int wps_get_oob_method(char *method);
605 int wps_process_oob(struct wps_context *wps, struct oob_device_data *oob_dev,
607 int wps_attr_text(struct wpabuf *data, char *buf, char *end);