2 * P2P - Internal definitions for P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
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.
18 #include "utils/list.h"
28 * struct p2p_device - P2P Device data (internal to P2P module)
32 struct os_time last_seen
;
34 enum p2p_wps_method wps_method
;
36 struct p2p_peer_info info
;
39 * If the peer was discovered based on an interface address (e.g., GO
40 * from Beacon/Probe Response), the interface address is stored here.
41 * p2p_device_addr must still be set in such a case to the unique
42 * identifier for the P2P Device.
44 u8 interface_addr
[ETH_ALEN
];
47 * P2P Device Address of the GO in whose group this P2P Device is a
50 u8 member_in_go_dev
[ETH_ALEN
];
53 * P2P Interface Address of the GO in whose group this P2P Device is a
56 u8 member_in_go_iface
[ETH_ALEN
];
59 enum p2p_go_state go_state
;
61 u8 intended_addr
[ETH_ALEN
];
64 struct p2p_channels channels
;
70 * req_config_methods - Pending provision discovery methods
72 u16 req_config_methods
;
75 * wps_prov_info - Stored provisioning WPS config method
77 * This is used to store pending WPS config method between Provisioning
78 * Discovery and connection to a running group.
82 #define P2P_DEV_PROBE_REQ_ONLY BIT(0)
83 #define P2P_DEV_REPORTED BIT(1)
84 #define P2P_DEV_NOT_YET_READY BIT(2)
85 #define P2P_DEV_SD_INFO BIT(3)
86 #define P2P_DEV_SD_SCHEDULE BIT(4)
87 #define P2P_DEV_PD_PEER_DISPLAY BIT(5)
88 #define P2P_DEV_PD_PEER_KEYPAD BIT(6)
89 #define P2P_DEV_USER_REJECTED BIT(7)
90 #define P2P_DEV_PEER_WAITING_RESPONSE BIT(8)
91 #define P2P_DEV_PREFER_PERSISTENT_GROUP BIT(9)
92 #define P2P_DEV_WAIT_GO_NEG_RESPONSE BIT(10)
93 #define P2P_DEV_WAIT_GO_NEG_CONFIRM BIT(11)
94 #define P2P_DEV_GROUP_CLIENT_ONLY BIT(12)
95 #define P2P_DEV_FORCE_FREQ BIT(13)
96 #define P2P_DEV_PD_FOR_JOIN BIT(14)
97 #define P2P_DEV_REPORTED_ONCE BIT(15)
98 #define P2P_DEV_PREFER_PERSISTENT_RECONN BIT(16)
101 int status
; /* enum p2p_status_code */
102 unsigned int wait_count
;
103 unsigned int connect_reqs
;
104 unsigned int invitation_reqs
;
106 u16 ext_listen_period
;
107 u16 ext_listen_interval
;
113 struct p2p_sd_query
{
114 struct p2p_sd_query
*next
;
120 struct p2p_pending_action_tx
{
126 unsigned int wait_time
;
127 /* Followed by len octets of the frame */
131 * struct p2p_data - P2P module data (internal to P2P module)
135 * cfg - P2P module configuration
137 * This is included in the same memory allocation with the
138 * struct p2p_data and as such, must not be freed separately.
140 struct p2p_config
*cfg
;
143 * state - The current P2P state
152 * P2P_SEARCH - Search (Device Discovery)
157 * P2P_CONNECT - Trying to start GO Negotiation
162 * P2P_CONNECT_LISTEN - Listen during GO Negotiation start
167 * P2P_GO_NEG - In GO Negotiation
172 * P2P_LISTEN_ONLY - Listen only
177 * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg
179 P2P_WAIT_PEER_CONNECT
,
182 * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg
187 * P2P_SD_DURING_FIND - Service Discovery during find
192 * P2P_PROVISIONING - Provisioning (during group formation)
197 * P2P_PD_DURING_FIND - Provision Discovery during find
202 * P2P_INVITE - Trying to start Invite
207 * P2P_INVITE_LISTEN - Listen during Invite
212 * P2P_SEARCH_WHEN_READY - Waiting to start Search
214 P2P_SEARCH_WHEN_READY
,
218 * min_disc_int - minDiscoverableInterval
223 * max_disc_int - maxDiscoverableInterval
228 * devices - List of known P2P Device peers
230 struct dl_list devices
;
233 * go_neg_peer - Pointer to GO Negotiation peer
235 struct p2p_device
*go_neg_peer
;
238 * invite_peer - Pointer to Invite peer
240 struct p2p_device
*invite_peer
;
242 const u8
*invite_go_dev_addr
;
243 u8 invite_go_dev_addr_buf
[ETH_ALEN
];
246 * sd_peer - Pointer to Service Discovery peer
248 struct p2p_device
*sd_peer
;
251 * sd_query - Pointer to Service Discovery query
253 struct p2p_sd_query
*sd_query
;
255 /* GO Negotiation data */
258 * intended_addr - Local Intended P2P Interface Address
260 * This address is used during group owner negotiation as the Intended
261 * P2P Interface Address and the group interface will be created with
262 * address as the local address in case of successfully completed
265 u8 intended_addr
[ETH_ALEN
];
268 * go_intent - Local GO Intent to be used during GO Negotiation
273 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation
278 * ssid - Selected SSID for GO Negotiation (if local end will be GO)
283 * ssid_len - ssid length in octets
288 * ssid_set - Whether SSID is already set for GO Negotiation
293 * Regulatory class for own operational channel
298 * op_channel - Own operational channel
303 * channels - Own supported regulatory classes and channels
305 * List of supposerted channels per regulatory class. The regulatory
306 * classes are defined in IEEE Std 802.11-2007 Annex J and the
307 * numbering of the clases depends on the configured country code.
309 struct p2p_channels channels
;
311 enum p2p_pending_action_state
{
312 P2P_NO_PENDING_ACTION
,
313 P2P_PENDING_GO_NEG_REQUEST
,
314 P2P_PENDING_GO_NEG_RESPONSE
,
315 P2P_PENDING_GO_NEG_RESPONSE_FAILURE
,
316 P2P_PENDING_GO_NEG_CONFIRM
,
319 P2P_PENDING_INVITATION_REQUEST
,
320 P2P_PENDING_INVITATION_RESPONSE
,
321 P2P_PENDING_DEV_DISC_REQUEST
,
322 P2P_PENDING_DEV_DISC_RESPONSE
,
323 P2P_PENDING_GO_DISC_REQ
324 } pending_action_state
;
326 unsigned int pending_listen_freq
;
327 unsigned int pending_listen_sec
;
328 unsigned int pending_listen_usec
;
336 * sd_queries - Pending service discovery queries
338 struct p2p_sd_query
*sd_queries
;
341 * srv_update_indic - Service Update Indicator for local services
343 u16 srv_update_indic
;
345 struct wpabuf
*sd_resp
; /* Fragmented SD response */
346 u8 sd_resp_addr
[ETH_ALEN
];
347 u8 sd_resp_dialog_token
;
348 size_t sd_resp_pos
; /* Offset in sd_resp */
351 struct wpabuf
*sd_rx_resp
; /* Reassembled SD response */
352 u16 sd_rx_update_indic
;
354 /* P2P Invitation data */
355 enum p2p_invite_role inv_role
;
356 u8 inv_bssid
[ETH_ALEN
];
361 u8 inv_group_bssid
[ETH_ALEN
];
362 u8
*inv_group_bssid_ptr
;
363 u8 inv_go_dev_addr
[ETH_ALEN
];
368 enum p2p_discovery_type find_type
;
369 unsigned int last_p2p_find_timeout
;
370 u8 last_prog_scan_class
;
371 u8 last_prog_scan_chan
;
372 int p2p_scan_running
;
373 enum p2p_after_scan
{
374 P2P_AFTER_SCAN_NOTHING
,
375 P2P_AFTER_SCAN_LISTEN
,
376 P2P_AFTER_SCAN_CONNECT
378 u8 after_scan_peer
[ETH_ALEN
];
379 struct p2p_pending_action_tx
*after_scan_tx
;
381 /* Requested device types for find/search */
382 unsigned int num_req_dev_types
;
385 u8 find_dev_id_buf
[ETH_ALEN
];
387 struct p2p_group
**groups
;
390 struct p2p_device
*pending_client_disc_go
;
391 u8 pending_client_disc_addr
[ETH_ALEN
];
392 u8 pending_dev_disc_dialog_token
;
393 u8 pending_dev_disc_addr
[ETH_ALEN
];
394 int pending_dev_disc_freq
;
395 unsigned int pending_client_disc_freq
;
398 unsigned int ext_listen_period
;
399 unsigned int ext_listen_interval
;
400 unsigned int ext_listen_interval_sec
;
401 unsigned int ext_listen_interval_usec
;
403 u8 peer_filter
[ETH_ALEN
];
409 int best_freq_overall
;
412 * wps_vendor_ext - WPS Vendor Extensions to add
414 struct wpabuf
*wps_vendor_ext
[P2P_MAX_WPS_VENDOR_EXT
];
417 * user_initiated_pd - Whether a PD request is user initiated or not.
419 u8 user_initiated_pd
;
422 * Keep track of which peer a given PD request was sent to.
423 * Used to raise a timeout alert in case there is no response.
425 u8 pending_pd_devaddr
[ETH_ALEN
];
428 * Retry counter for provision discovery requests when issued
435 * struct p2p_message - Parsed P2P message (or P2P IE)
438 struct wpabuf
*p2p_attributes
;
439 struct wpabuf
*wps_attributes
;
443 const u8
*capability
;
446 const u8
*listen_channel
;
447 const u8
*operating_channel
;
448 const u8
*channel_list
;
450 const u8
*config_timeout
;
451 const u8
*intended_addr
;
452 const u8
*group_bssid
;
453 const u8
*invitation_flags
;
455 const u8
*group_info
;
456 size_t group_info_len
;
463 const u8
*manageability
;
468 const u8
*ext_listen_timing
;
470 const u8
*minor_reason_code
;
472 /* P2P Device Info */
473 const u8
*p2p_device_info
;
474 size_t p2p_device_info_len
;
475 const u8
*p2p_device_addr
;
476 const u8
*pri_dev_type
;
477 u8 num_sec_dev_types
;
478 char device_name
[33];
483 u16 wps_config_methods
;
484 const u8
*wps_pri_dev_type
;
485 const u8
*wps_sec_dev_type_list
;
486 size_t wps_sec_dev_type_list_len
;
487 const u8
*wps_vendor_ext
[P2P_MAX_WPS_VENDOR_EXT
];
488 size_t wps_vendor_ext_len
[P2P_MAX_WPS_VENDOR_EXT
];
489 const u8
*manufacturer
;
490 size_t manufacturer_len
;
491 const u8
*model_name
;
492 size_t model_name_len
;
493 const u8
*model_number
;
494 size_t model_number_len
;
495 const u8
*serial_number
;
496 size_t serial_number_len
;
498 /* DS Parameter Set IE */
506 #define P2P_MAX_GROUP_ENTRIES 50
508 struct p2p_group_info
{
509 unsigned int num_clients
;
510 struct p2p_client_info
{
511 const u8
*p2p_device_addr
;
512 const u8
*p2p_interface_addr
;
515 const u8
*pri_dev_type
;
516 u8 num_sec_dev_types
;
517 const u8
*sec_dev_types
;
518 const char *dev_name
;
520 } client
[P2P_MAX_GROUP_ENTRIES
];
525 int p2p_random(char *buf
, size_t len
);
526 int p2p_channel_to_freq(const char *country
, int reg_class
, int channel
);
527 int p2p_freq_to_channel(const char *country
, unsigned int freq
, u8
*reg_class
,
529 void p2p_channels_intersect(const struct p2p_channels
*a
,
530 const struct p2p_channels
*b
,
531 struct p2p_channels
*res
);
532 int p2p_channels_includes(const struct p2p_channels
*channels
, u8 reg_class
,
536 int p2p_parse_p2p_ie(const struct wpabuf
*buf
, struct p2p_message
*msg
);
537 int p2p_parse_ies(const u8
*data
, size_t len
, struct p2p_message
*msg
);
538 int p2p_parse(const u8
*data
, size_t len
, struct p2p_message
*msg
);
539 void p2p_parse_free(struct p2p_message
*msg
);
540 int p2p_attr_text(struct wpabuf
*data
, char *buf
, char *end
);
541 int p2p_group_info_parse(const u8
*gi
, size_t gi_len
,
542 struct p2p_group_info
*info
);
546 struct p2p_noa_desc
{
554 const u8
* p2p_group_get_interface_addr(struct p2p_group
*group
);
555 u8
p2p_group_presence_req(struct p2p_group
*group
,
556 const u8
*client_interface_addr
,
557 const u8
*noa
, size_t noa_len
);
560 void p2p_buf_add_action_hdr(struct wpabuf
*buf
, u8 subtype
, u8 dialog_token
);
561 void p2p_buf_add_public_action_hdr(struct wpabuf
*buf
, u8 subtype
,
563 u8
* p2p_buf_add_ie_hdr(struct wpabuf
*buf
);
564 void p2p_buf_add_status(struct wpabuf
*buf
, u8 status
);
565 void p2p_buf_add_device_info(struct wpabuf
*buf
, struct p2p_data
*p2p
,
566 struct p2p_device
*peer
);
567 void p2p_buf_add_device_id(struct wpabuf
*buf
, const u8
*dev_addr
);
568 void p2p_buf_update_ie_hdr(struct wpabuf
*buf
, u8
*len
);
569 void p2p_buf_add_capability(struct wpabuf
*buf
, u8 dev_capab
, u8 group_capab
);
570 void p2p_buf_add_go_intent(struct wpabuf
*buf
, u8 go_intent
);
571 void p2p_buf_add_listen_channel(struct wpabuf
*buf
, const char *country
,
572 u8 reg_class
, u8 channel
);
573 void p2p_buf_add_operating_channel(struct wpabuf
*buf
, const char *country
,
574 u8 reg_class
, u8 channel
);
575 void p2p_buf_add_channel_list(struct wpabuf
*buf
, const char *country
,
576 struct p2p_channels
*chan
);
577 void p2p_buf_add_config_timeout(struct wpabuf
*buf
, u8 go_timeout
,
579 void p2p_buf_add_intended_addr(struct wpabuf
*buf
, const u8
*interface_addr
);
580 void p2p_buf_add_group_bssid(struct wpabuf
*buf
, const u8
*bssid
);
581 void p2p_buf_add_group_id(struct wpabuf
*buf
, const u8
*dev_addr
,
582 const u8
*ssid
, size_t ssid_len
);
583 void p2p_buf_add_invitation_flags(struct wpabuf
*buf
, u8 flags
);
584 void p2p_buf_add_noa(struct wpabuf
*buf
, u8 noa_index
, u8 opp_ps
, u8 ctwindow
,
585 struct p2p_noa_desc
*desc1
, struct p2p_noa_desc
*desc2
);
586 void p2p_buf_add_ext_listen_timing(struct wpabuf
*buf
, u16 period
,
588 void p2p_buf_add_p2p_interface(struct wpabuf
*buf
, struct p2p_data
*p2p
);
589 void p2p_build_wps_ie(struct p2p_data
*p2p
, struct wpabuf
*buf
, u16 pw_id
,
593 struct p2p_sd_query
* p2p_pending_sd_req(struct p2p_data
*p2p
,
594 struct p2p_device
*dev
);
595 void p2p_free_sd_queries(struct p2p_data
*p2p
);
596 void p2p_rx_gas_initial_req(struct p2p_data
*p2p
, const u8
*sa
,
597 const u8
*data
, size_t len
, int rx_freq
);
598 void p2p_rx_gas_initial_resp(struct p2p_data
*p2p
, const u8
*sa
,
599 const u8
*data
, size_t len
, int rx_freq
);
600 void p2p_rx_gas_comeback_req(struct p2p_data
*p2p
, const u8
*sa
,
601 const u8
*data
, size_t len
, int rx_freq
);
602 void p2p_rx_gas_comeback_resp(struct p2p_data
*p2p
, const u8
*sa
,
603 const u8
*data
, size_t len
, int rx_freq
);
604 int p2p_start_sd(struct p2p_data
*p2p
, struct p2p_device
*dev
);
607 int p2p_peer_channels_check(struct p2p_data
*p2p
, struct p2p_channels
*own
,
608 struct p2p_device
*dev
,
609 const u8
*channel_list
, size_t channel_list_len
);
610 void p2p_process_go_neg_req(struct p2p_data
*p2p
, const u8
*sa
,
611 const u8
*data
, size_t len
, int rx_freq
);
612 void p2p_process_go_neg_resp(struct p2p_data
*p2p
, const u8
*sa
,
613 const u8
*data
, size_t len
, int rx_freq
);
614 void p2p_process_go_neg_conf(struct p2p_data
*p2p
, const u8
*sa
,
615 const u8
*data
, size_t len
);
616 int p2p_connect_send(struct p2p_data
*p2p
, struct p2p_device
*dev
);
619 void p2p_process_prov_disc_req(struct p2p_data
*p2p
, const u8
*sa
,
620 const u8
*data
, size_t len
, int rx_freq
);
621 void p2p_process_prov_disc_resp(struct p2p_data
*p2p
, const u8
*sa
,
622 const u8
*data
, size_t len
);
623 int p2p_send_prov_disc_req(struct p2p_data
*p2p
, struct p2p_device
*dev
,
624 int join
, int force_freq
);
625 void p2p_reset_pending_pd(struct p2p_data
*p2p
);
627 /* p2p_invitation.c */
628 void p2p_process_invitation_req(struct p2p_data
*p2p
, const u8
*sa
,
629 const u8
*data
, size_t len
, int rx_freq
);
630 void p2p_process_invitation_resp(struct p2p_data
*p2p
, const u8
*sa
,
631 const u8
*data
, size_t len
);
632 int p2p_invite_send(struct p2p_data
*p2p
, struct p2p_device
*dev
,
633 const u8
*go_dev_addr
);
634 void p2p_invitation_req_cb(struct p2p_data
*p2p
, int success
);
635 void p2p_invitation_resp_cb(struct p2p_data
*p2p
, int success
);
638 void p2p_process_dev_disc_req(struct p2p_data
*p2p
, const u8
*sa
,
639 const u8
*data
, size_t len
, int rx_freq
);
640 void p2p_dev_disc_req_cb(struct p2p_data
*p2p
, int success
);
641 int p2p_send_dev_disc_req(struct p2p_data
*p2p
, struct p2p_device
*dev
);
642 void p2p_dev_disc_resp_cb(struct p2p_data
*p2p
, int success
);
643 void p2p_process_dev_disc_resp(struct p2p_data
*p2p
, const u8
*sa
,
644 const u8
*data
, size_t len
);
645 void p2p_go_disc_req_cb(struct p2p_data
*p2p
, int success
);
646 void p2p_process_go_disc_req(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
647 const u8
*data
, size_t len
, int rx_freq
);
650 void p2p_set_state(struct p2p_data
*p2p
, int new_state
);
651 void p2p_set_timeout(struct p2p_data
*p2p
, unsigned int sec
,
653 void p2p_clear_timeout(struct p2p_data
*p2p
);
654 void p2p_continue_find(struct p2p_data
*p2p
);
655 struct p2p_device
* p2p_add_dev_from_go_neg_req(struct p2p_data
*p2p
,
657 struct p2p_message
*msg
);
658 void p2p_add_dev_info(struct p2p_data
*p2p
, const u8
*addr
,
659 struct p2p_device
*dev
, struct p2p_message
*msg
);
660 int p2p_add_device(struct p2p_data
*p2p
, const u8
*addr
, int freq
, int level
,
661 const u8
*ies
, size_t ies_len
);
662 struct p2p_device
* p2p_get_device(struct p2p_data
*p2p
, const u8
*addr
);
663 struct p2p_device
* p2p_get_device_interface(struct p2p_data
*p2p
,
665 void p2p_go_neg_failed(struct p2p_data
*p2p
, struct p2p_device
*peer
,
667 void p2p_go_complete(struct p2p_data
*p2p
, struct p2p_device
*peer
);
668 int p2p_match_dev_type(struct p2p_data
*p2p
, struct wpabuf
*wps
);
669 int dev_type_list_match(const u8
*dev_type
, const u8
*req_dev_type
[],
670 size_t num_req_dev_type
);
671 struct wpabuf
* p2p_build_probe_resp_ies(struct p2p_data
*p2p
);
672 void p2p_build_ssid(struct p2p_data
*p2p
, u8
*ssid
, size_t *ssid_len
);
673 int p2p_send_action(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
674 const u8
*src
, const u8
*bssid
, const u8
*buf
,
675 size_t len
, unsigned int wait_time
);