[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)
	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];
};

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