[thirdparty/hostap.git] / src / p2p / p2p_i.h

/*
 * P2P - Internal definitions for P2P module
 * Copyright (c) 2009-2010, Atheros Communications
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 */

#ifndef P2P_I_H
#define P2P_I_H

#include "utils/list.h"
#include "p2p.h"

/* TODO: add removal of expired P2P device entries */

enum p2p_go_state {
	UNKNOWN_GO,
	LOCAL_GO,
	REMOTE_GO
};

/**
 * struct p2p_device - P2P Device data (internal to P2P module)
 */
struct p2p_device {
	struct dl_list list;
	struct os_time last_seen;
	int listen_freq;
	int level;
	enum p2p_wps_method wps_method;

	u8 p2p_device_addr[ETH_ALEN]; /* P2P Device Address of the peer */
	u8 pri_dev_type[8];
	char device_name[33];
	u16 config_methods;
	u8 dev_capab;
	u8 group_capab;

	/*
	 * If the peer was discovered based on an interface address (e.g., GO
	 * from Beacon/Probe Response), the interface address is stored here.
	 * p2p_device_addr must still be set in such a case to the unique
	 * identifier for the P2P Device.
	 */
	u8 interface_addr[ETH_ALEN];

	/*
	 * P2P Device Address of the GO in whose group this P2P Device is a
	 * client.
	 */
	u8 member_in_go_dev[ETH_ALEN];

	/*
	 * P2P Interface Address of the GO in whose group this P2P Device is a
	 * client.
	 */
	u8 member_in_go_iface[ETH_ALEN];

	int go_neg_req_sent;
	enum p2p_go_state go_state;
	u8 dialog_token;
	u8 intended_addr[ETH_ALEN];

	char country[3];
	struct p2p_channels channels;
	int oper_freq;
	u8 oper_ssid[32];
	size_t oper_ssid_len;

	/**
	 * req_config_methods - Pending provisioning discovery methods
	 */
	u16 req_config_methods;

#define P2P_DEV_PROBE_REQ_ONLY BIT(0)
#define P2P_DEV_REPORTED BIT(1)
#define P2P_DEV_NOT_YET_READY BIT(2)
#define P2P_DEV_SD_INFO BIT(3)
#define P2P_DEV_SD_SCHEDULE BIT(4)
#define P2P_DEV_PD_PEER_DISPLAY BIT(5)
#define P2P_DEV_PD_PEER_KEYPAD BIT(6)
#define P2P_DEV_USER_REJECTED BIT(7)
#define P2P_DEV_PEER_WAITING_RESPONSE BIT(8)
#define P2P_DEV_PREFER_PERSISTENT_GROUP BIT(9)
#define P2P_DEV_WAIT_GO_NEG_RESPONSE BIT(10)
#define P2P_DEV_WAIT_GO_NEG_CONFIRM BIT(11)
#define P2P_DEV_GROUP_CLIENT_ONLY BIT(12)
#define P2P_DEV_FORCE_FREQ BIT(13)
	unsigned int flags;

	int status; /* enum p2p_status_code */
	unsigned int wait_count;
	unsigned int invitation_reqs;

	u16 ext_listen_period;
	u16 ext_listen_interval;
};

struct p2p_sd_query {
	struct p2p_sd_query *next;
	u8 peer[ETH_ALEN];
	int for_all_peers;
	struct wpabuf *tlvs;
};

/**
 * struct p2p_data - P2P module data (internal to P2P module)
 */
struct p2p_data {
	/**
	 * cfg - P2P module configuration
	 *
	 * This is included in the same memory allocation with the
	 * struct p2p_data and as such, must not be freed separately.
	 */
	struct p2p_config *cfg;

	/**
	 * state - The current P2P state
	 */
	enum p2p_state {
		/**
		 * P2P_IDLE - Idle
		 */
		P2P_IDLE,

		/**
		 * P2P_SEARCH - Search (Device Discovery)
		 */
		P2P_SEARCH,

		/**
		 * P2P_CONNECT - Trying to start GO Negotiation
		 */
		P2P_CONNECT,

		/**
		 * P2P_CONNECT_LISTEN - Listen during GO Negotiation start
		 */
		P2P_CONNECT_LISTEN,

		/**
		 * P2P_GO_NEG - In GO Negotiation
		 */
		P2P_GO_NEG,

		/**
		 * P2P_LISTEN_ONLY - Listen only
		 */
		P2P_LISTEN_ONLY,

		/**
		 * P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg
		 */
		P2P_WAIT_PEER_CONNECT,

		/**
		 * P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg
		 */
		P2P_WAIT_PEER_IDLE,

		/**
		 * P2P_SD_DURING_FIND - Service Discovery during find
		 */
		P2P_SD_DURING_FIND,

		/**
		 * P2P_PROVISIONING - Provisioning (during group formation)
		 */
		P2P_PROVISIONING,

		/**
		 * P2P_PD_DURING_FIND - Provision Discovery during find
		 */
		P2P_PD_DURING_FIND,

		/**
		 * P2P_INVITE - Trying to start Invite
		 */
		P2P_INVITE,

		/**
		 * P2P_INVITE_LISTEN - Listen during Invite
		 */
		P2P_INVITE_LISTEN,
	} state;

	/**
	 * min_disc_int - minDiscoverableInterval
	 */
	int min_disc_int;

	/**
	 * max_disc_int - maxDiscoverableInterval
	 */
	int max_disc_int;

	/**
	 * devices - List of known P2P Device peers
	 */
	struct dl_list devices;

	/**
	 * go_neg_peer - Pointer to GO Negotiation peer
	 */
	struct p2p_device *go_neg_peer;

	/**
	 * invite_peer - Pointer to Invite peer
	 */
	struct p2p_device *invite_peer;

	const u8 *invite_go_dev_addr;
	u8 invite_go_dev_addr_buf[ETH_ALEN];

	/**
	 * sd_peer - Pointer to Service Discovery peer
	 */
	struct p2p_device *sd_peer;

	/**
	 * sd_query - Pointer to Service Discovery query
	 */
	struct p2p_sd_query *sd_query;

	/* GO Negotiation data */

	/**
	 * intended_addr - Local Intended P2P Interface Address
	 *
	 * This address is used during group owner negotiation as the Intended
	 * P2P Interface Address and the group interface will be created with
	 * address as the local address in case of successfully completed
	 * negotiation.
	 */
	u8 intended_addr[ETH_ALEN];

	/**
	 * go_intent - Local GO Intent to be used during GO Negotiation
	 */
	u8 go_intent;

	/**
	 * next_tie_breaker - Next tie-breaker value to use in GO Negotiation
	 */
	u8 next_tie_breaker;

	/**
	 * ssid - Selected SSID for GO Negotiation (if local end will be GO)
	 */
	u8 ssid[32];

	/**
	 * ssid_len - ssid length in octets
	 */
	size_t ssid_len;

	/**
	 * Regulatory class for own operational channel
	 */
	u8 op_reg_class;

	/**
	 * op_channel - Own operational channel
	 */
	u8 op_channel;

	/**
	 * channels - Own supported regulatory classes and channels
	 *
	 * List of supposerted channels per regulatory class. The regulatory
	 * classes are defined in IEEE Std 802.11-2007 Annex J and the
	 * numbering of the clases depends on the configured country code.
	 */
	struct p2p_channels channels;

	enum p2p_pending_action_state {
		P2P_NO_PENDING_ACTION,
		P2P_PENDING_GO_NEG_REQUEST,
		P2P_PENDING_GO_NEG_RESPONSE,
		P2P_PENDING_GO_NEG_RESPONSE_FAILURE,
		P2P_PENDING_GO_NEG_CONFIRM,
		P2P_PENDING_SD,
		P2P_PENDING_PD,
		P2P_PENDING_INVITATION_REQUEST,
		P2P_PENDING_INVITATION_RESPONSE,
		P2P_PENDING_DEV_DISC_REQUEST,
		P2P_PENDING_DEV_DISC_RESPONSE,
		P2P_PENDING_GO_DISC_REQ
	} pending_action_state;

	unsigned int pending_listen_freq;
	unsigned int pending_listen_sec;
	unsigned int pending_listen_usec;

	u8 dev_capab;

	int in_listen;
	int drv_in_listen;

	/**
	 * sd_queries - Pending service discovery queries
	 */
	struct p2p_sd_query *sd_queries;

	/**
	 * srv_update_indic - Service Update Indicator for local services
	 */
	u16 srv_update_indic;

	struct wpabuf *sd_resp; /* Fragmented SD response */
	u8 sd_resp_addr[ETH_ALEN];
	u8 sd_resp_dialog_token;
	size_t sd_resp_pos; /* Offset in sd_resp */
	u8 sd_frag_id;

	struct wpabuf *sd_rx_resp; /* Reassembled SD response */

	/* P2P Invitation data */
	enum p2p_invite_role inv_role;
	u8 inv_bssid[ETH_ALEN];
	int inv_bssid_set;
	u8 inv_ssid[32];
	size_t inv_ssid_len;
	u8 inv_sa[ETH_ALEN];
	u8 inv_group_bssid[ETH_ALEN];
	u8 *inv_group_bssid_ptr;
	u8 inv_go_dev_addr[ETH_ALEN];
	u8 inv_status;
	int inv_op_freq;
	int inv_persistent;

	enum p2p_discovery_type find_type;
	u8 last_prog_scan_class;
	u8 last_prog_scan_chan;
	int p2p_scan_running;
	enum p2p_after_scan {
		P2P_AFTER_SCAN_NOTHING,
		P2P_AFTER_SCAN_LISTEN,
		P2P_AFTER_SCAN_CONNECT
	} start_after_scan;
	u8 after_scan_peer[ETH_ALEN];

	struct p2p_group **groups;
	size_t num_groups;

	struct p2p_device *pending_client_disc_go;
	u8 pending_client_disc_addr[ETH_ALEN];
	u8 pending_dev_disc_dialog_token;
	u8 pending_dev_disc_addr[ETH_ALEN];
	int pending_dev_disc_freq;
	unsigned int pending_client_disc_freq;

	int ext_listen_only;
	unsigned int ext_listen_period;
	unsigned int ext_listen_interval;
	unsigned int ext_listen_interval_sec;
	unsigned int ext_listen_interval_usec;

	u8 peer_filter[ETH_ALEN];

	int cross_connect;
};

/**
 * struct p2p_message - Parsed P2P message (or P2P IE)
 */
struct p2p_message {
	struct wpabuf *p2p_attributes;
	struct wpabuf *wps_attributes;

	u8 dialog_token;

	const u8 *capability;
	const u8 *go_intent;
	const u8 *status;
	const u8 *listen_channel;
	const u8 *operating_channel;
	const u8 *channel_list;
	u8 channel_list_len;
	const u8 *config_timeout;
	const u8 *intended_addr;
	const u8 *group_bssid;
	const u8 *invitation_flags;

	const u8 *group_info;
	size_t group_info_len;

	const u8 *group_id;
	size_t group_id_len;

	const u8 *device_id;

	const u8 *manageability;

	const u8 *noa;
	size_t noa_len;

	const u8 *ext_listen_timing;

	const u8 *minor_reason_code;

	/* P2P Device Info */
	const u8 *p2p_device_info;
	size_t p2p_device_info_len;
	const u8 *p2p_device_addr;
	const u8 *pri_dev_type;
	u8 num_sec_dev_types;
	char device_name[33];
	u16 config_methods;

	/* WPS IE */
	u16 dev_password_id;
	u16 wps_config_methods;
	const u8 *wps_pri_dev_type;

	/* DS Parameter Set IE */
	const u8 *ds_params;

	/* SSID IE */
	const u8 *ssid;
};


#define P2P_MAX_GROUP_ENTRIES 50

struct p2p_group_info {
	unsigned int num_clients;
	struct p2p_client_info {
		const u8 *p2p_device_addr;
		const u8 *p2p_interface_addr;
		u8 dev_capab;
		u16 config_methods;
		const u8 *pri_dev_type;
		u8 num_sec_dev_types;
		const u8 *sec_dev_types;
		const char *dev_name;
		size_t dev_name_len;
	} client[P2P_MAX_GROUP_ENTRIES];
};


/* p2p_utils.c */
int p2p_random(char *buf, size_t len);
int p2p_channel_to_freq(const char *country, int reg_class, int channel);
int p2p_freq_to_channel(const char *country, unsigned int freq, u8 *reg_class,
			u8 *channel);
void p2p_channels_intersect(const struct p2p_channels *a,
			    const struct p2p_channels *b,
			    struct p2p_channels *res);
int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
			  u8 channel);

/* p2p_parse.c */
int p2p_parse_p2p_ie(const struct wpabuf *buf, struct p2p_message *msg);
int p2p_parse_ies(const u8 *data, size_t len, struct p2p_message *msg);
int p2p_parse(const u8 *data, size_t len, struct p2p_message *msg);
void p2p_parse_free(struct p2p_message *msg);
int p2p_attr_text(struct wpabuf *data, char *buf, char *end);
int p2p_group_info_parse(const u8 *gi, size_t gi_len,
			 struct p2p_group_info *info);

/* p2p_build.c */

struct p2p_noa_desc {
	u8 count_type;
	u32 duration;
	u32 interval;
	u32 start_time;
};

/* p2p_group.c */
const u8 * p2p_group_get_interface_addr(struct p2p_group *group);
u8 p2p_group_presence_req(struct p2p_group *group,
			  const u8 *client_interface_addr,
			  const u8 *noa, size_t noa_len);


void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
				   u8 dialog_token);
u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf);
void p2p_buf_add_status(struct wpabuf *buf, u8 status);
void p2p_buf_add_device_info(struct wpabuf *buf, struct p2p_data *p2p,
			     struct p2p_device *peer);
void p2p_buf_add_device_id(struct wpabuf *buf, const u8 *dev_addr);
void p2p_buf_update_ie_hdr(struct wpabuf *buf, u8 *len);
void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab);
void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent);
void p2p_buf_add_listen_channel(struct wpabuf *buf, const char *country,
				u8 reg_class, u8 channel);
void p2p_buf_add_operating_channel(struct wpabuf *buf, const char *country,
				   u8 reg_class, u8 channel);
void p2p_buf_add_channel_list(struct wpabuf *buf, const char *country,
			      struct p2p_channels *chan);
void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
				u8 client_timeout);
void p2p_buf_add_intended_addr(struct wpabuf *buf, const u8 *interface_addr);
void p2p_buf_add_group_bssid(struct wpabuf *buf, const u8 *bssid);
void p2p_buf_add_group_id(struct wpabuf *buf, const u8 *dev_addr,
			  const u8 *ssid, size_t ssid_len);
void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags);
void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow,
		     struct p2p_noa_desc *desc1, struct p2p_noa_desc *desc2);
void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period,
				   u16 interval);
void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p);
void p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, u16 pw_id,
		      int all_attr);

/* p2p_sd.c */
struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
					 struct p2p_device *dev);
void p2p_free_sd_queries(struct p2p_data *p2p);
void p2p_rx_gas_initial_req(struct p2p_data *p2p, const u8 *sa,
			    const u8 *data, size_t len, int rx_freq);
void p2p_rx_gas_initial_resp(struct p2p_data *p2p, const u8 *sa,
			     const u8 *data, size_t len, int rx_freq);
void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa,
			     const u8 *data, size_t len, int rx_freq);
void p2p_rx_gas_comeback_resp(struct p2p_data *p2p, const u8 *sa,
			      const u8 *data, size_t len, int rx_freq);
int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev);

/* p2p_go_neg.c */
int p2p_peer_channels_check(struct p2p_data *p2p, struct p2p_channels *own,
			    struct p2p_device *dev,
			    const u8 *channel_list, size_t channel_list_len);
void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa,
			    const u8 *data, size_t len, int rx_freq);
void p2p_process_go_neg_resp(struct p2p_data *p2p, const u8 *sa,
			     const u8 *data, size_t len, int rx_freq);
void p2p_process_go_neg_conf(struct p2p_data *p2p, const u8 *sa,
			     const u8 *data, size_t len);
int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev);

/* p2p_pd.c */
void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
			       const u8 *data, size_t len, int rx_freq);
void p2p_process_prov_disc_resp(struct p2p_data *p2p, const u8 *sa,
				const u8 *data, size_t len);
int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev,
			   int join);

/* p2p_invitation.c */
void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa,
				const u8 *data, size_t len, int rx_freq);
void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
				 const u8 *data, size_t len);
int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
		    const u8 *go_dev_addr);
void p2p_invitation_req_cb(struct p2p_data *p2p, int success);
void p2p_invitation_resp_cb(struct p2p_data *p2p, int success);

/* p2p_dev_disc.c */
void p2p_process_dev_disc_req(struct p2p_data *p2p, const u8 *sa,
			      const u8 *data, size_t len, int rx_freq);
void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success);
int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev);
void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success);
void p2p_process_dev_disc_resp(struct p2p_data *p2p, const u8 *sa,
			       const u8 *data, size_t len);
void p2p_go_disc_req_cb(struct p2p_data *p2p, int success);
void p2p_process_go_disc_req(struct p2p_data *p2p, const u8 *da, const u8 *sa,
			     const u8 *data, size_t len, int rx_freq);

/* p2p.c */
void p2p_set_state(struct p2p_data *p2p, int new_state);
void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec,
		     unsigned int usec);
void p2p_clear_timeout(struct p2p_data *p2p);
void p2p_continue_find(struct p2p_data *p2p);
struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
						const u8 *addr,
						struct p2p_message *msg);
void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
		      struct p2p_device *dev, struct p2p_message *msg);
struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr);
struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
					     const u8 *addr);
void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
		       int status);
void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer);
int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps);
int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
			size_t num_req_dev_type);
struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p);
void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len);

#endif /* P2P_I_H */
Commit	Line	Data
b22128ef JM	1	/*
	2	* P2P - Internal definitions for P2P module
	3	* Copyright (c) 2009-2010, Atheros Communications
	4	*
	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.
	8	*
	9	* Alternatively, this software may be distributed under the terms of BSD
	10	* license.
	11	*
	12	* See README and COPYING for more details.
	13	*/
	14
	15	#ifndef P2P_I_H
	16	#define P2P_I_H
	17
	18	#include "utils/list.h"
	19	#include "p2p.h"
	20
	21	/* TODO: add removal of expired P2P device entries */
	22
	23	enum p2p_go_state {
	24	UNKNOWN_GO,
	25	LOCAL_GO,
	26	REMOTE_GO
	27	};
	28
	29	/**
	30	* struct p2p_device - P2P Device data (internal to P2P module)
	31	*/
	32	struct p2p_device {
	33	struct dl_list list;
	34	struct os_time last_seen;
	35	int listen_freq;
	36	int level;
	37	enum p2p_wps_method wps_method;
	38
	39	u8 p2p_device_addr[ETH_ALEN]; /* P2P Device Address of the peer */
	40	u8 pri_dev_type[8];
	41	char device_name[33];
	42	u16 config_methods;
	43	u8 dev_capab;
	44	u8 group_capab;
	45
	46	/*
	47	* If the peer was discovered based on an interface address (e.g., GO
	48	* from Beacon/Probe Response), the interface address is stored here.
	49	* p2p_device_addr must still be set in such a case to the unique
	50	* identifier for the P2P Device.
	51	*/
	52	u8 interface_addr[ETH_ALEN];
	53
	54	/*
	55	* P2P Device Address of the GO in whose group this P2P Device is a
	56	* client.
	57	*/
	58	u8 member_in_go_dev[ETH_ALEN];
	59
	60	/*
	61	* P2P Interface Address of the GO in whose group this P2P Device is a
	62	* client.
	63	*/
	64	u8 member_in_go_iface[ETH_ALEN];
65
66	int go_neg_req_sent;
67	enum p2p_go_state go_state;
68	u8 dialog_token;
69	u8 intended_addr[ETH_ALEN];
70
71	char country[3];
72	struct p2p_channels channels;
73	int oper_freq;
74	u8 oper_ssid[32];
75	size_t oper_ssid_len;
76
77	/**
78	* req_config_methods - Pending provisioning discovery methods
79	*/
80	u16 req_config_methods;
81
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)
d5b20a73	95	#define P2P_DEV_FORCE_FREQ BIT(13)
b22128ef JM	96	unsigned int flags;
	97
	98	int status; /* enum p2p_status_code */
	99	unsigned int wait_count;
	100	unsigned int invitation_reqs;
	101
	102	u16 ext_listen_period;
	103	u16 ext_listen_interval;
	104	};
	105
	106	struct p2p_sd_query {
	107	struct p2p_sd_query *next;
	108	u8 peer[ETH_ALEN];
	109	int for_all_peers;
	110	struct wpabuf *tlvs;
	111	};
	112
	113	/**
	114	* struct p2p_data - P2P module data (internal to P2P module)
	115	*/
	116	struct p2p_data {
	117	/**
	118	* cfg - P2P module configuration
	119	*
	120	* This is included in the same memory allocation with the
	121	* struct p2p_data and as such, must not be freed separately.
	122	*/
	123	struct p2p_config *cfg;
	124
	125	/**
	126	* state - The current P2P state
	127	*/
	128	enum p2p_state {
	129	/**
	130	* P2P_IDLE - Idle
	131	*/
	132	P2P_IDLE,
	133
	134	/**
	135	* P2P_SEARCH - Search (Device Discovery)
	136	*/
	137	P2P_SEARCH,
	138
	139	/**
	140	* P2P_CONNECT - Trying to start GO Negotiation
	141	*/
	142	P2P_CONNECT,
	143
	144	/**
	145	* P2P_CONNECT_LISTEN - Listen during GO Negotiation start
	146	*/
	147	P2P_CONNECT_LISTEN,
	148
	149	/**
	150	* P2P_GO_NEG - In GO Negotiation
	151	*/
	152	P2P_GO_NEG,
	153
	154	/**
	155	* P2P_LISTEN_ONLY - Listen only
	156	*/
	157	P2P_LISTEN_ONLY,
	158
	159	/**
160	* P2P_WAIT_PEER_CONNECT - Waiting peer in List for GO Neg
161	*/
162	P2P_WAIT_PEER_CONNECT,
163
164	/**
165	* P2P_WAIT_PEER_IDLE - Waiting peer idle for GO Neg
166	*/
167	P2P_WAIT_PEER_IDLE,
168
169	/**
170	* P2P_SD_DURING_FIND - Service Discovery during find
171	*/
172	P2P_SD_DURING_FIND,
173
174	/**
175	* P2P_PROVISIONING - Provisioning (during group formation)
176	*/
177	P2P_PROVISIONING,
178
179	/**
180	* P2P_PD_DURING_FIND - Provision Discovery during find
181	*/
182	P2P_PD_DURING_FIND,
183
184	/**
185	* P2P_INVITE - Trying to start Invite
186	*/
187	P2P_INVITE,
188
189	/**
190	* P2P_INVITE_LISTEN - Listen during Invite
191	*/
192	P2P_INVITE_LISTEN,
193	} state;
194
195	/**
196	* min_disc_int - minDiscoverableInterval
197	*/
198	int min_disc_int;
199
200	/**
201	* max_disc_int - maxDiscoverableInterval
202	*/
203	int max_disc_int;
204
205	/**
206	* devices - List of known P2P Device peers
207	*/
208	struct dl_list devices;
209
210	/**
211	* go_neg_peer - Pointer to GO Negotiation peer
212	*/
213	struct p2p_device *go_neg_peer;
214
215	/**
216	* invite_peer - Pointer to Invite peer
217	*/
218	struct p2p_device *invite_peer;
219
220	const u8 *invite_go_dev_addr;
221	u8 invite_go_dev_addr_buf[ETH_ALEN];
222
223	/**
224	* sd_peer - Pointer to Service Discovery peer
225	*/
226	struct p2p_device *sd_peer;
227
228	/**
229	* sd_query - Pointer to Service Discovery query
230	*/
231	struct p2p_sd_query *sd_query;
232
233	/* GO Negotiation data */
234
235	/**
236	* intended_addr - Local Intended P2P Interface Address
237	*
238	* This address is used during group owner negotiation as the Intended
239	* P2P Interface Address and the group interface will be created with
240	* address as the local address in case of successfully completed
241	* negotiation.
242	*/
243	u8 intended_addr[ETH_ALEN];
244
245	/**
246	* go_intent - Local GO Intent to be used during GO Negotiation
247	*/
248	u8 go_intent;
249
250	/**
251	* next_tie_breaker - Next tie-breaker value to use in GO Negotiation
252	*/
253	u8 next_tie_breaker;
254
255	/**
256	* ssid - Selected SSID for GO Negotiation (if local end will be GO)
257	*/
258	u8 ssid[32];
259
260	/**
261	* ssid_len - ssid length in octets
262	*/
263	size_t ssid_len;
264
265	/**
266	* Regulatory class for own operational channel
267	*/
268	u8 op_reg_class;
269
270	/**
271	* op_channel - Own operational channel
272	*/
273	u8 op_channel;
274
275	/**
276	* channels - Own supported regulatory classes and channels
277	*
278	* List of supposerted channels per regulatory class. The regulatory
279	* classes are defined in IEEE Std 802.11-2007 Annex J and the
280	* numbering of the clases depends on the configured country code.
281	*/
282	struct p2p_channels channels;
283
284	enum p2p_pending_action_state {
285	P2P_NO_PENDING_ACTION,
286	P2P_PENDING_GO_NEG_REQUEST,
287	P2P_PENDING_GO_NEG_RESPONSE,
288	P2P_PENDING_GO_NEG_RESPONSE_FAILURE,
289	P2P_PENDING_GO_NEG_CONFIRM,
290	P2P_PENDING_SD,
291	P2P_PENDING_PD,
292	P2P_PENDING_INVITATION_REQUEST,
293	P2P_PENDING_INVITATION_RESPONSE,
294	P2P_PENDING_DEV_DISC_REQUEST,
295	P2P_PENDING_DEV_DISC_RESPONSE,
296	P2P_PENDING_GO_DISC_REQ
297	} pending_action_state;
298
299	unsigned int pending_listen_freq;
300	unsigned int pending_listen_sec;
301	unsigned int pending_listen_usec;
302
303	u8 dev_capab;
304
305	int in_listen;
306	int drv_in_listen;
307
308	/**
309	* sd_queries - Pending service discovery queries
310	*/
311	struct p2p_sd_query *sd_queries;
312
313	/**
314	* srv_update_indic - Service Update Indicator for local services
315	*/
316	u16 srv_update_indic;
317
18708aad JM	318	struct wpabuf sd_resp; / Fragmented SD response */
	319	u8 sd_resp_addr[ETH_ALEN];
	320	u8 sd_resp_dialog_token;
	321	size_t sd_resp_pos; /* Offset in sd_resp */
	322	u8 sd_frag_id;
	323
	324	struct wpabuf sd_rx_resp; / Reassembled SD response */
	325
b22128ef JM	326	/* P2P Invitation data */
	327	enum p2p_invite_role inv_role;
	328	u8 inv_bssid[ETH_ALEN];
	329	int inv_bssid_set;
	330	u8 inv_ssid[32];
	331	size_t inv_ssid_len;
	332	u8 inv_sa[ETH_ALEN];
	333	u8 inv_group_bssid[ETH_ALEN];
	334	u8 *inv_group_bssid_ptr;
	335	u8 inv_go_dev_addr[ETH_ALEN];
	336	u8 inv_status;
	337	int inv_op_freq;
	338	int inv_persistent;
	339
	340	enum p2p_discovery_type find_type;
	341	u8 last_prog_scan_class;
	342	u8 last_prog_scan_chan;
	343	int p2p_scan_running;
	344	enum p2p_after_scan {
	345	P2P_AFTER_SCAN_NOTHING,
	346	P2P_AFTER_SCAN_LISTEN,
	347	P2P_AFTER_SCAN_CONNECT
	348	} start_after_scan;
	349	u8 after_scan_peer[ETH_ALEN];
	350
	351	struct p2p_group **groups;
	352	size_t num_groups;
	353
	354	struct p2p_device *pending_client_disc_go;
	355	u8 pending_client_disc_addr[ETH_ALEN];
	356	u8 pending_dev_disc_dialog_token;
	357	u8 pending_dev_disc_addr[ETH_ALEN];
	358	int pending_dev_disc_freq;
	359	unsigned int pending_client_disc_freq;
	360
	361	int ext_listen_only;
	362	unsigned int ext_listen_period;
	363	unsigned int ext_listen_interval;
	364	unsigned int ext_listen_interval_sec;
	365	unsigned int ext_listen_interval_usec;
80c9582a JM	366
80c9582a JM	367	u8 peer_filter[ETH_ALEN];
72044390 JM	368
72044390 JM	369	int cross_connect;
b22128ef JM	370	};
	371
	372	/**
	373	* struct p2p_message - Parsed P2P message (or P2P IE)
	374	*/
	375	struct p2p_message {
	376	struct wpabuf *p2p_attributes;
	377	struct wpabuf *wps_attributes;
	378
	379	u8 dialog_token;
	380
	381	const u8 *capability;
	382	const u8 *go_intent;
	383	const u8 *status;
	384	const u8 *listen_channel;
	385	const u8 *operating_channel;
	386	const u8 *channel_list;
	387	u8 channel_list_len;
	388	const u8 *config_timeout;
	389	const u8 *intended_addr;
	390	const u8 *group_bssid;
	391	const u8 *invitation_flags;
	392
	393	const u8 *group_info;
	394	size_t group_info_len;
	395
	396	const u8 *group_id;
	397	size_t group_id_len;
	398
	399	const u8 *device_id;
	400
	401	const u8 *manageability;
	402
	403	const u8 *noa;
	404	size_t noa_len;
	405
	406	const u8 *ext_listen_timing;
	407
	408	const u8 *minor_reason_code;
	409
	410	/* P2P Device Info */
	411	const u8 *p2p_device_info;
	412	size_t p2p_device_info_len;
	413	const u8 *p2p_device_addr;
	414	const u8 *pri_dev_type;
	415	u8 num_sec_dev_types;
	416	char device_name[33];
	417	u16 config_methods;
	418
	419	/* WPS IE */
	420	u16 dev_password_id;
	421	u16 wps_config_methods;
	422	const u8 *wps_pri_dev_type;
	423
	424	/* DS Parameter Set IE */
	425	const u8 *ds_params;
	426
	427	/* SSID IE */
	428	const u8 *ssid;
	429	};
	430
	431
	432	#define P2P_MAX_GROUP_ENTRIES 50
	433
434	struct p2p_group_info {
435	unsigned int num_clients;
436	struct p2p_client_info {
437	const u8 *p2p_device_addr;
438	const u8 *p2p_interface_addr;
439	u8 dev_capab;
440	u16 config_methods;
441	const u8 *pri_dev_type;
442	u8 num_sec_dev_types;
443	const u8 *sec_dev_types;
444	const char *dev_name;
445	size_t dev_name_len;
446	} client[P2P_MAX_GROUP_ENTRIES];
447	};
448
449
450	/* p2p_utils.c */
451	int p2p_random(char *buf, size_t len);
452	int p2p_channel_to_freq(const char *country, int reg_class, int channel);
453	int p2p_freq_to_channel(const char country, unsigned int freq, u8 reg_class,
454	u8 *channel);
455	void p2p_channels_intersect(const struct p2p_channels *a,
456	const struct p2p_channels *b,
457	struct p2p_channels *res);
458	int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
459	u8 channel);
460
461	/* p2p_parse.c */
462	int p2p_parse_p2p_ie(const struct wpabuf buf, struct p2p_message msg);
463	int p2p_parse_ies(const u8 data, size_t len, struct p2p_message msg);
464	int p2p_parse(const u8 data, size_t len, struct p2p_message msg);
465	void p2p_parse_free(struct p2p_message *msg);
466	int p2p_attr_text(struct wpabuf data, char buf, char *end);
467	int p2p_group_info_parse(const u8 *gi, size_t gi_len,
468	struct p2p_group_info *info);
469
470	/* p2p_build.c */
471
472	struct p2p_noa_desc {
473	u8 count_type;
474	u32 duration;
475	u32 interval;
476	u32 start_time;
477	};
478
479	/* p2p_group.c */
480	const u8 * p2p_group_get_interface_addr(struct p2p_group *group);
481	u8 p2p_group_presence_req(struct p2p_group *group,
482	const u8 *client_interface_addr,
483	const u8 *noa, size_t noa_len);
484
485
486	void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
487	void p2p_buf_add_public_action_hdr(struct wpabuf *buf, u8 subtype,
488	u8 dialog_token);
489	u8 * p2p_buf_add_ie_hdr(struct wpabuf *buf);
490	void p2p_buf_add_status(struct wpabuf *buf, u8 status);
491	void p2p_buf_add_device_info(struct wpabuf buf, struct p2p_data p2p,
492	struct p2p_device *peer);
493	void p2p_buf_add_device_id(struct wpabuf buf, const u8 dev_addr);
494	void p2p_buf_update_ie_hdr(struct wpabuf buf, u8 len);
495	void p2p_buf_add_capability(struct wpabuf *buf, u8 dev_capab, u8 group_capab);
496	void p2p_buf_add_go_intent(struct wpabuf *buf, u8 go_intent);
497	void p2p_buf_add_listen_channel(struct wpabuf buf, const char country,
498	u8 reg_class, u8 channel);
499	void p2p_buf_add_operating_channel(struct wpabuf buf, const char country,
500	u8 reg_class, u8 channel);
501	void p2p_buf_add_channel_list(struct wpabuf buf, const char country,
502	struct p2p_channels *chan);
503	void p2p_buf_add_config_timeout(struct wpabuf *buf, u8 go_timeout,
504	u8 client_timeout);
505	void p2p_buf_add_intended_addr(struct wpabuf buf, const u8 interface_addr);
506	void p2p_buf_add_group_bssid(struct wpabuf buf, const u8 bssid);
507	void p2p_buf_add_group_id(struct wpabuf buf, const u8 dev_addr,
508	const u8 *ssid, size_t ssid_len);
509	void p2p_buf_add_invitation_flags(struct wpabuf *buf, u8 flags);
510	void p2p_buf_add_noa(struct wpabuf *buf, u8 noa_index, u8 opp_ps, u8 ctwindow,
511	struct p2p_noa_desc desc1, struct p2p_noa_desc desc2);
512	void p2p_buf_add_ext_listen_timing(struct wpabuf *buf, u16 period,
513	u16 interval);
514	void p2p_buf_add_p2p_interface(struct wpabuf buf, struct p2p_data p2p);
515	void p2p_build_wps_ie(struct p2p_data p2p, struct wpabuf buf, u16 pw_id,
516	int all_attr);
517
518	/* p2p_sd.c */
519	struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
520	struct p2p_device *dev);
521	void p2p_free_sd_queries(struct p2p_data *p2p);
522	void p2p_rx_gas_initial_req(struct p2p_data p2p, const u8 sa,
523	const u8 *data, size_t len, int rx_freq);
524	void p2p_rx_gas_initial_resp(struct p2p_data p2p, const u8 sa,
18708aad JM	525	const u8 *data, size_t len, int rx_freq);
	526	void p2p_rx_gas_comeback_req(struct p2p_data p2p, const u8 sa,
	527	const u8 *data, size_t len, int rx_freq);
	528	void p2p_rx_gas_comeback_resp(struct p2p_data p2p, const u8 sa,
	529	const u8 *data, size_t len, int rx_freq);
b22128ef JM	530	int p2p_start_sd(struct p2p_data p2p, struct p2p_device dev);
	531
	532	/* p2p_go_neg.c */
	533	int p2p_peer_channels_check(struct p2p_data p2p, struct p2p_channels own,
	534	struct p2p_device *dev,
	535	const u8 *channel_list, size_t channel_list_len);
	536	void p2p_process_go_neg_req(struct p2p_data p2p, const u8 sa,
	537	const u8 *data, size_t len, int rx_freq);
	538	void p2p_process_go_neg_resp(struct p2p_data p2p, const u8 sa,
	539	const u8 *data, size_t len, int rx_freq);
	540	void p2p_process_go_neg_conf(struct p2p_data p2p, const u8 sa,
	541	const u8 *data, size_t len);
	542	int p2p_connect_send(struct p2p_data p2p, struct p2p_device dev);
	543
	544	/* p2p_pd.c */
	545	void p2p_process_prov_disc_req(struct p2p_data p2p, const u8 sa,
	546	const u8 *data, size_t len, int rx_freq);
	547	void p2p_process_prov_disc_resp(struct p2p_data p2p, const u8 sa,
	548	const u8 *data, size_t len);
	549	int p2p_send_prov_disc_req(struct p2p_data p2p, struct p2p_device dev,
	550	int join);
	551
	552	/* p2p_invitation.c */
	553	void p2p_process_invitation_req(struct p2p_data p2p, const u8 sa,
	554	const u8 *data, size_t len, int rx_freq);
	555	void p2p_process_invitation_resp(struct p2p_data p2p, const u8 sa,
	556	const u8 *data, size_t len);
	557	int p2p_invite_send(struct p2p_data p2p, struct p2p_device dev,
	558	const u8 *go_dev_addr);
	559	void p2p_invitation_req_cb(struct p2p_data *p2p, int success);
	560	void p2p_invitation_resp_cb(struct p2p_data *p2p, int success);
	561
	562	/* p2p_dev_disc.c */
	563	void p2p_process_dev_disc_req(struct p2p_data p2p, const u8 sa,
	564	const u8 *data, size_t len, int rx_freq);
	565	void p2p_dev_disc_req_cb(struct p2p_data *p2p, int success);
	566	int p2p_send_dev_disc_req(struct p2p_data p2p, struct p2p_device dev);
	567	void p2p_dev_disc_resp_cb(struct p2p_data *p2p, int success);
	568	void p2p_process_dev_disc_resp(struct p2p_data p2p, const u8 sa,
	569	const u8 *data, size_t len);
	570	void p2p_go_disc_req_cb(struct p2p_data *p2p, int success);
	571	void p2p_process_go_disc_req(struct p2p_data p2p, const u8 da, const u8 *sa,
	572	const u8 *data, size_t len, int rx_freq);
	573
	574	/* p2p.c */
	575	void p2p_set_state(struct p2p_data *p2p, int new_state);
	576	void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec,
	577	unsigned int usec);
	578	void p2p_clear_timeout(struct p2p_data *p2p);
	579	void p2p_continue_find(struct p2p_data *p2p);
	580	struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
	581	const u8 *addr,
	582	struct p2p_message *msg);
	583	void p2p_add_dev_info(struct p2p_data p2p, const u8 addr,
	584	struct p2p_device dev, struct p2p_message msg);
	585	struct p2p_device * p2p_get_device(struct p2p_data p2p, const u8 addr);
	586	struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
	587	const u8 *addr);
	588	void p2p_go_neg_failed(struct p2p_data p2p, struct p2p_device peer,
	589	int status);
	590	void p2p_go_complete(struct p2p_data p2p, struct p2p_device peer);
	591	int p2p_match_dev_type(struct p2p_data p2p, struct wpabuf wps);
	592	int dev_type_list_match(const u8 dev_type, const u8 req_dev_type[],
	593	size_t num_req_dev_type);
594	struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p);
595	void p2p_build_ssid(struct p2p_data p2p, u8 ssid, size_t *ssid_len);
596
597	#endif /* P2P_I_H */