2 * Wi-Fi Protected Setup
3 * Copyright (c) 2007-2008, 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 struct wps_data * wps_init(const struct wps_config *cfg);
139 void wps_deinit(struct wps_data *data);
142 * enum wps_process_res - WPS message processing result
144 enum wps_process_res {
146 * WPS_DONE - Processing done
151 * WPS_CONTINUE - Processing continues
156 * WPS_FAILURE - Processing failed
161 * WPS_PENDING - Processing continues, but waiting for an external
162 * event (e.g., UPnP message from an external Registrar)
166 enum wps_process_res wps_process_msg(struct wps_data *wps,
167 enum wsc_op_code op_code,
168 const struct wpabuf *msg);
170 struct wpabuf * wps_get_msg(struct wps_data *wps, enum wsc_op_code *op_code);
172 int wps_is_selected_pbc_registrar(const struct wpabuf *msg);
173 int wps_is_selected_pin_registrar(const struct wpabuf *msg);
174 const u8 * wps_get_uuid_e(const struct wpabuf *msg);
176 struct wpabuf * wps_build_assoc_req_ie(enum wps_request_type req_type);
177 struct wpabuf * wps_build_probe_req_ie(int pbc, struct wps_device_data *dev,
179 enum wps_request_type req_type);
183 * struct wps_registrar_config - WPS Registrar configuration
185 struct wps_registrar_config {
187 * new_psk_cb - Callback for new PSK
188 * @ctx: Higher layer context data (cb_ctx)
189 * @mac_addr: MAC address of the Enrollee
191 * @psk_len: The length of psk in octets
192 * Returns: 0 on success, -1 on failure
194 * This callback is called when a new per-device PSK is provisioned.
196 int (*new_psk_cb)(void *ctx, const u8 *mac_addr, const u8 *psk,
200 * set_ie_cb - Callback for WPS IE changes
201 * @ctx: Higher layer context data (cb_ctx)
202 * @beacon_ie: WPS IE for Beacon
203 * @beacon_ie_len: WPS IE length for Beacon
204 * @probe_resp_ie: WPS IE for Probe Response
205 * @probe_resp_ie_len: WPS IE length for Probe Response
206 * Returns: 0 on success, -1 on failure
208 * This callback is called whenever the WPS IE in Beacon or Probe
209 * Response frames needs to be changed (AP only).
211 int (*set_ie_cb)(void *ctx, const u8 *beacon_ie, size_t beacon_ie_len,
212 const u8 *probe_resp_ie, size_t probe_resp_ie_len);
215 * pin_needed_cb - Callback for requesting a PIN
216 * @ctx: Higher layer context data (cb_ctx)
217 * @uuid_e: UUID-E of the unknown Enrollee
218 * @dev: Device Data from the unknown Enrollee
220 * This callback is called whenever an unknown Enrollee requests to use
221 * PIN method and a matching PIN (Device Password) is not found in
224 void (*pin_needed_cb)(void *ctx, const u8 *uuid_e,
225 const struct wps_device_data *dev);
228 * reg_success_cb - Callback for reporting successful registration
229 * @ctx: Higher layer context data (cb_ctx)
230 * @mac_addr: MAC address of the Enrollee
231 * @uuid_e: UUID-E of the Enrollee
233 * This callback is called whenever an Enrollee completes registration
236 void (*reg_success_cb)(void *ctx, const u8 *mac_addr,
240 * cb_ctx: Higher layer context data for Registrar callbacks
245 * skip_cred_build: Do not build credential
247 * This option can be used to disable internal code that builds
248 * Credential attribute into M8 based on the current network
249 * configuration and Enrollee capabilities. The extra_cred data will
250 * then be used as the Credential(s).
255 * extra_cred: Additional Credential attribute(s)
257 * This optional data (set to %NULL to disable) can be used to add
258 * Credential attribute(s) for other networks into M8. If
259 * skip_cred_build is set, this will also override the automatically
260 * generated Credential attribute.
262 const u8 *extra_cred;
265 * extra_cred_len: Length of extra_cred in octets
267 size_t extra_cred_len;
270 * disable_auto_conf - Disable auto-configuration on first registration
272 * By default, the AP that is started in not configured state will
273 * generate a random PSK and move to configured state when the first
274 * registration protocol run is completed successfully. This option can
275 * be used to disable this functionality and leave it up to an external
276 * program to take care of configuration. This requires the extra_cred
277 * to be set with a suitable Credential and skip_cred_build being used.
279 int disable_auto_conf;
284 * enum wps_event - WPS event types
288 * WPS_EV_M2D - M2D received (Registrar did not know us)
293 * WPS_EV_FAIL - Registration failed
298 * WPS_EV_SUCCESS - Registration succeeded
303 * WPS_EV_PWD_AUTH_FAIL - Password authentication failed
309 * union wps_event_data - WPS event data
311 union wps_event_data {
313 * struct wps_event_m2d - M2D event data
315 struct wps_event_m2d {
317 const u8 *manufacturer;
318 size_t manufacturer_len;
319 const u8 *model_name;
320 size_t model_name_len;
321 const u8 *model_number;
322 size_t model_number_len;
323 const u8 *serial_number;
324 size_t serial_number_len;
327 const u8 *primary_dev_type; /* 8 octets */
333 * struct wps_event_fail - Registration failure information
334 * @msg: enum wps_msg_type
336 struct wps_event_fail {
340 struct wps_event_pwd_auth_fail {
347 * struct upnp_pending_message - Pending PutWLANResponse messages
348 * @next: Pointer to next pending message or %NULL
349 * @addr: NewWLANEventMAC
351 * @type: Message Type
353 struct upnp_pending_message {
354 struct upnp_pending_message *next;
357 enum wps_msg_type type;
361 * struct wps_context - Long term WPS context data
363 * This data is stored at the higher layer Authenticator or Supplicant data
364 * structures and it is maintained over multiple registration protocol runs.
368 * ap - Whether the local end is an access point
373 * registrar - Pointer to WPS registrar data from wps_registrar_init()
375 struct wps_registrar *registrar;
378 * wps_state - Current WPS state
380 enum wps_state wps_state;
383 * ap_setup_locked - Whether AP setup is locked (only used at AP)
395 * This SSID is used by the Registrar to fill in information for
396 * Credentials. In addition, AP uses it when acting as an Enrollee to
397 * notify Registrar of the current configuration.
402 * ssid_len - Length of ssid in octets
407 * dev - Own WPS device data
409 struct wps_device_data dev;
412 * oob_dev - OOB Device data
414 struct oob_device_data *oob_dev;
417 * oob_conf - OOB Config data
419 struct oob_conf_data oob_conf;
422 * oob_dev_pw_id - OOB Device password id
427 * dh_privkey - Diffie-Hellman private key
429 struct wpabuf *dh_privkey;
432 * dh_pubkey_oob - Diffie-Hellman public key
434 struct wpabuf *dh_pubkey;
437 * config_methods - Enabled configuration methods
439 * Bit field of WPS_CONFIG_*
444 * encr_types - Enabled encryption types (bit field of WPS_ENCR_*)
449 * auth_types - Authentication types (bit field of WPS_AUTH_*)
454 * network_key - The current Network Key (PSK) or %NULL to generate new
456 * If %NULL, Registrar will generate per-device PSK. In addition, AP
457 * uses this when acting as an Enrollee to notify Registrar of the
458 * current configuration.
463 * network_key_len - Length of network_key in octets
465 size_t network_key_len;
468 * ap_settings - AP Settings override for M7 (only used at AP)
470 * If %NULL, AP Settings attributes will be generated based on the
471 * current network configuration.
476 * ap_settings_len - Length of ap_settings in octets
478 size_t ap_settings_len;
481 * friendly_name - Friendly Name (required for UPnP)
486 * manufacturer_url - Manufacturer URL (optional for UPnP)
488 char *manufacturer_url;
491 * model_description - Model Description (recommended for UPnP)
493 char *model_description;
496 * model_url - Model URL (optional for UPnP)
501 * upc - Universal Product Code (optional for UPnP)
506 * cred_cb - Callback to notify that new Credentials were received
507 * @ctx: Higher layer context data (cb_ctx)
508 * @cred: The received Credential
509 * Return: 0 on success, -1 on failure
511 int (*cred_cb)(void *ctx, const struct wps_credential *cred);
514 * event_cb - Event callback (state information about progress)
515 * @ctx: Higher layer context data (cb_ctx)
519 void (*event_cb)(void *ctx, enum wps_event event,
520 union wps_event_data *data);
523 * cb_ctx: Higher layer context data for callbacks
527 struct upnp_wps_device_sm *wps_upnp;
529 /* Pending messages from UPnP PutWLANResponse */
530 struct upnp_pending_message *upnp_msgs;
533 struct oob_device_data {
535 void * (*init_func)(struct wps_context *, int);
536 struct wpabuf * (*read_func)(void *);
537 int (*write_func)(void *, struct wpabuf *);
538 void (*deinit_func)(void *);
541 struct wps_registrar *
542 wps_registrar_init(struct wps_context *wps,
543 const struct wps_registrar_config *cfg);
544 void wps_registrar_deinit(struct wps_registrar *reg);
545 int wps_registrar_add_pin(struct wps_registrar *reg, const u8 *uuid,
546 const u8 *pin, size_t pin_len);
547 int wps_registrar_invalidate_pin(struct wps_registrar *reg, const u8 *uuid);
548 int wps_registrar_unlock_pin(struct wps_registrar *reg, const u8 *uuid);
549 int wps_registrar_button_pushed(struct wps_registrar *reg);
550 void wps_registrar_probe_req_rx(struct wps_registrar *reg, const u8 *addr,
551 const struct wpabuf *wps_data);
552 int wps_registrar_update_ie(struct wps_registrar *reg);
553 int wps_registrar_set_selected_registrar(struct wps_registrar *reg,
554 const struct wpabuf *msg);
556 unsigned int wps_pin_checksum(unsigned int pin);
557 unsigned int wps_pin_valid(unsigned int pin);
558 unsigned int wps_generate_pin(void);
559 void wps_free_pending_msgs(struct upnp_pending_message *msgs);
561 struct oob_device_data * wps_get_oob_device(char *device_type);
562 int wps_get_oob_method(char *method);
563 int wps_process_oob(struct wps_context *wps, int registrar);