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;
38 * struct wps_credential - WPS Credential
40 * @ssid_len: Length of SSID
41 * @auth_type: Authentication Type (WPS_AUTH_OPEN, .. flags)
42 * @encr_type: Encryption Type (WPS_ENCR_NONE, .. flags)
45 * @key_len: Key length in octets
46 * @mac_addr: MAC address of the Credential receiver
47 * @cred_attr: Unparsed Credential attribute data (used only in cred_cb());
48 * this may be %NULL, if not used
49 * @cred_attr_len: Length of cred_attr in octets
51 struct wps_credential {
59 u8 mac_addr[ETH_ALEN];
64 #define WPS_DEV_TYPE_LEN 8
65 #define WPS_DEV_TYPE_BUFSIZE 21
68 * struct wps_device_data - WPS Device Data
69 * @mac_addr: Device MAC address
70 * @device_name: Device Name (0..32 octets encoded in UTF-8)
71 * @manufacturer: Manufacturer (0..64 octets encoded in UTF-8)
72 * @model_name: Model Name (0..32 octets encoded in UTF-8)
73 * @model_number: Model Number (0..32 octets encoded in UTF-8)
74 * @serial_number: Serial Number (0..32 octets encoded in UTF-8)
75 * @pri_dev_type: Primary Device Type
76 * @os_version: OS Version
77 * @rf_bands: RF bands (WPS_RF_24GHZ, WPS_RF_50GHZ flags)
79 struct wps_device_data {
80 u8 mac_addr[ETH_ALEN];
86 u8 pri_dev_type[WPS_DEV_TYPE_LEN];
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 * set_sel_reg_cb - Callback for reporting selected registrar changes
256 * @ctx: Higher layer context data (cb_ctx)
257 * @sel_reg: Whether the Registrar is selected
258 * @dev_passwd_id: Device Password ID to indicate with method or
259 * specific password the Registrar intends to use
260 * @sel_reg_config_methods: Bit field of active config methods
262 * This callback is called whenever the Selected Registrar state
263 * changes (e.g., a new PIN becomes available or PBC is invoked). This
264 * callback is only used by External Registrar implementation;
265 * set_ie_cb() is used by AP implementation in similar caes, but it
266 * provides the full WPS IE data instead of just the minimal Registrar
269 void (*set_sel_reg_cb)(void *ctx, int sel_reg, u16 dev_passwd_id,
270 u16 sel_reg_config_methods);
273 * cb_ctx: Higher layer context data for Registrar callbacks
278 * skip_cred_build: Do not build credential
280 * This option can be used to disable internal code that builds
281 * Credential attribute into M8 based on the current network
282 * configuration and Enrollee capabilities. The extra_cred data will
283 * then be used as the Credential(s).
288 * extra_cred: Additional Credential attribute(s)
290 * This optional data (set to %NULL to disable) can be used to add
291 * Credential attribute(s) for other networks into M8. If
292 * skip_cred_build is set, this will also override the automatically
293 * generated Credential attribute.
295 const u8 *extra_cred;
298 * extra_cred_len: Length of extra_cred in octets
300 size_t extra_cred_len;
303 * disable_auto_conf - Disable auto-configuration on first registration
305 * By default, the AP that is started in not configured state will
306 * generate a random PSK and move to configured state when the first
307 * registration protocol run is completed successfully. This option can
308 * be used to disable this functionality and leave it up to an external
309 * program to take care of configuration. This requires the extra_cred
310 * to be set with a suitable Credential and skip_cred_build being used.
312 int disable_auto_conf;
315 * static_wep_only - Whether the BSS supports only static WEP
322 * enum wps_event - WPS event types
326 * WPS_EV_M2D - M2D received (Registrar did not know us)
331 * WPS_EV_FAIL - Registration failed
336 * WPS_EV_SUCCESS - Registration succeeded
341 * WPS_EV_PWD_AUTH_FAIL - Password authentication failed
343 WPS_EV_PWD_AUTH_FAIL,
346 * WPS_EV_PBC_OVERLAP - PBC session overlap detected
351 * WPS_EV_PBC_TIMEOUT - PBC walktime expired before protocol run start
356 * WPS_EV_ER_AP_ADD - ER: AP added
361 * WPS_EV_ER_AP_REMOVE - ER: AP removed
366 * WPS_EV_ER_ENROLLEE_ADD - ER: Enrollee added
368 WPS_EV_ER_ENROLLEE_ADD,
371 * WPS_EV_ER_ENROLLEE_REMOVE - ER: Enrollee removed
373 WPS_EV_ER_ENROLLEE_REMOVE
377 * union wps_event_data - WPS event data
379 union wps_event_data {
381 * struct wps_event_m2d - M2D event data
383 struct wps_event_m2d {
385 const u8 *manufacturer;
386 size_t manufacturer_len;
387 const u8 *model_name;
388 size_t model_name_len;
389 const u8 *model_number;
390 size_t model_number_len;
391 const u8 *serial_number;
392 size_t serial_number_len;
395 const u8 *primary_dev_type; /* 8 octets */
401 * struct wps_event_fail - Registration failure information
402 * @msg: enum wps_msg_type
404 struct wps_event_fail {
408 struct wps_event_pwd_auth_fail {
413 struct wps_event_er_ap {
416 const char *friendly_name;
417 const char *manufacturer;
418 const char *manufacturer_url;
419 const char *model_description;
420 const char *model_name;
421 const char *model_number;
422 const char *model_url;
423 const char *serial_number;
425 const u8 *pri_dev_type;
429 struct wps_event_er_enrollee {
435 const u8 *pri_dev_type;
436 const char *dev_name;
437 const char *manufacturer;
438 const char *model_name;
439 const char *model_number;
440 const char *serial_number;
445 * struct upnp_pending_message - Pending PutWLANResponse messages
446 * @next: Pointer to next pending message or %NULL
447 * @addr: NewWLANEventMAC
449 * @type: Message Type
451 struct upnp_pending_message {
452 struct upnp_pending_message *next;
455 enum wps_msg_type type;
459 * struct wps_context - Long term WPS context data
461 * This data is stored at the higher layer Authenticator or Supplicant data
462 * structures and it is maintained over multiple registration protocol runs.
466 * ap - Whether the local end is an access point
471 * registrar - Pointer to WPS registrar data from wps_registrar_init()
473 struct wps_registrar *registrar;
476 * wps_state - Current WPS state
478 enum wps_state wps_state;
481 * ap_setup_locked - Whether AP setup is locked (only used at AP)
493 * This SSID is used by the Registrar to fill in information for
494 * Credentials. In addition, AP uses it when acting as an Enrollee to
495 * notify Registrar of the current configuration.
500 * ssid_len - Length of ssid in octets
505 * dev - Own WPS device data
507 struct wps_device_data dev;
510 * oob_conf - OOB Config data
512 struct oob_conf_data oob_conf;
515 * oob_dev_pw_id - OOB Device password id
520 * dh_ctx - Context data for Diffie-Hellman operation
525 * dh_privkey - Diffie-Hellman private key
527 struct wpabuf *dh_privkey;
530 * dh_pubkey_oob - Diffie-Hellman public key
532 struct wpabuf *dh_pubkey;
535 * config_methods - Enabled configuration methods
537 * Bit field of WPS_CONFIG_*
542 * encr_types - Enabled encryption types (bit field of WPS_ENCR_*)
547 * auth_types - Authentication types (bit field of WPS_AUTH_*)
552 * network_key - The current Network Key (PSK) or %NULL to generate new
554 * If %NULL, Registrar will generate per-device PSK. In addition, AP
555 * uses this when acting as an Enrollee to notify Registrar of the
556 * current configuration.
561 * network_key_len - Length of network_key in octets
563 size_t network_key_len;
566 * ap_settings - AP Settings override for M7 (only used at AP)
568 * If %NULL, AP Settings attributes will be generated based on the
569 * current network configuration.
574 * ap_settings_len - Length of ap_settings in octets
576 size_t ap_settings_len;
579 * friendly_name - Friendly Name (required for UPnP)
584 * manufacturer_url - Manufacturer URL (optional for UPnP)
586 char *manufacturer_url;
589 * model_description - Model Description (recommended for UPnP)
591 char *model_description;
594 * model_url - Model URL (optional for UPnP)
599 * upc - Universal Product Code (optional for UPnP)
604 * cred_cb - Callback to notify that new Credentials were received
605 * @ctx: Higher layer context data (cb_ctx)
606 * @cred: The received Credential
607 * Return: 0 on success, -1 on failure
609 int (*cred_cb)(void *ctx, const struct wps_credential *cred);
612 * event_cb - Event callback (state information about progress)
613 * @ctx: Higher layer context data (cb_ctx)
617 void (*event_cb)(void *ctx, enum wps_event event,
618 union wps_event_data *data);
621 * cb_ctx: Higher layer context data for callbacks
625 struct upnp_wps_device_sm *wps_upnp;
627 /* Pending messages from UPnP PutWLANResponse */
628 struct upnp_pending_message *upnp_msgs;
631 struct oob_device_data {
634 void * (*init_func)(struct wps_context *, struct oob_device_data *,
636 struct wpabuf * (*read_func)(void *);
637 int (*write_func)(void *, struct wpabuf *);
638 void (*deinit_func)(void *);
641 struct oob_nfc_device_data {
642 int (*init_func)(char *);
643 void * (*read_func)(size_t *);
644 int (*write_func)(void *, size_t);
645 void (*deinit_func)(void);
648 struct wps_registrar *
649 wps_registrar_init(struct wps_context *wps,
650 const struct wps_registrar_config *cfg);
651 void wps_registrar_deinit(struct wps_registrar *reg);
652 int wps_registrar_add_pin(struct wps_registrar *reg, const u8 *uuid,
653 const u8 *pin, size_t pin_len, int timeout);
654 int wps_registrar_invalidate_pin(struct wps_registrar *reg, const u8 *uuid);
655 int wps_registrar_unlock_pin(struct wps_registrar *reg, const u8 *uuid);
656 int wps_registrar_button_pushed(struct wps_registrar *reg);
657 void wps_registrar_probe_req_rx(struct wps_registrar *reg, const u8 *addr,
658 const struct wpabuf *wps_data);
659 int wps_registrar_update_ie(struct wps_registrar *reg);
660 int wps_registrar_set_selected_registrar(struct wps_registrar *reg,
661 const struct wpabuf *msg);
662 int wps_registrar_get_info(struct wps_registrar *reg, const u8 *addr,
663 char *buf, size_t buflen);
665 unsigned int wps_pin_checksum(unsigned int pin);
666 unsigned int wps_pin_valid(unsigned int pin);
667 unsigned int wps_generate_pin(void);
668 void wps_free_pending_msgs(struct upnp_pending_message *msgs);
670 struct oob_device_data * wps_get_oob_device(char *device_type);
671 struct oob_nfc_device_data * wps_get_oob_nfc_device(char *device_name);
672 int wps_get_oob_method(char *method);
673 int wps_process_oob(struct wps_context *wps, struct oob_device_data *oob_dev,
675 int wps_attr_text(struct wpabuf *data, char *buf, char *end);
677 struct wps_er * wps_er_init(struct wps_context *wps, const char *ifname);
678 void wps_er_refresh(struct wps_er *er);
679 void wps_er_deinit(struct wps_er *er);
680 void wps_er_set_sel_reg(struct wps_er *er, int sel_reg, u16 dev_passwd_id,
681 u16 sel_reg_config_methods);
682 int wps_er_pbc(struct wps_er *er, const u8 *uuid);
683 int wps_er_learn(struct wps_er *er, const u8 *uuid, const u8 *pin,
686 int wps_dev_type_str2bin(const char *str, u8 dev_type[WPS_DEV_TYPE_LEN]);
687 char * wps_dev_type_bin2str(const u8 dev_type[WPS_DEV_TYPE_LEN], char *buf,
689 void uuid_gen_mac_addr(const u8 *mac_addr, u8 *uuid);