* 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.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
*/
#ifndef P2P_I_H
#include "utils/list.h"
#include "p2p.h"
-/* TODO: add removal of expired P2P device entries */
+#define P2P_GO_NEG_CNF_MAX_RETRY_COUNT 1
+
+/*
+ * A threshold (in seconds) to prefer a direct Probe Response frame from a P2P
+ * Device over the P2P Client Info received from a GO.
+ */
+#define P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD 1
+
+enum p2p_role_indication;
+
+/*
+ * To force Service Instances to fit within a single P2P Tag, MAX_SVC_ADV_LEN
+ * must equal 248 or less. Must have a minimum size of 19.
+ */
+#define MAX_SVC_ADV_LEN 600
+#define MAX_SVC_ADV_IE_LEN (9 + MAX_SVC_ADV_LEN + (5 * (MAX_SVC_ADV_LEN / 240)))
enum p2p_go_state {
UNKNOWN_GO,
*/
struct p2p_device {
struct dl_list list;
- struct os_time last_seen;
+ struct os_reltime last_seen;
int listen_freq;
- int level;
+ int oob_go_neg_freq;
enum p2p_wps_method wps_method;
+ u16 oob_pw_id;
- 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;
+ struct p2p_peer_info info;
/*
* 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.
+ *
+ * This field is also used during P2PS PD to store the intended GO
+ * address of the peer.
*/
u8 interface_addr[ETH_ALEN];
int go_neg_req_sent;
enum p2p_go_state go_state;
u8 dialog_token;
+ u8 tie_breaker;
u8 intended_addr[ETH_ALEN];
char country[3];
struct p2p_channels channels;
int oper_freq;
- u8 oper_ssid[32];
+ u8 oper_ssid[SSID_MAX_LEN];
size_t oper_ssid_len;
/**
- * req_config_methods - Pending provisioning discovery methods
+ * req_config_methods - Pending provision discovery methods
*/
u16 req_config_methods;
+ /**
+ * wps_prov_info - Stored provisioning WPS config method
+ *
+ * This is used to store pending WPS config method between Provisioning
+ * Discovery and connection to a running group.
+ */
+ u16 wps_prov_info;
+
#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_WAIT_GO_NEG_CONFIRM BIT(11)
#define P2P_DEV_GROUP_CLIENT_ONLY BIT(12)
#define P2P_DEV_FORCE_FREQ BIT(13)
+#define P2P_DEV_PD_FOR_JOIN BIT(14)
+#define P2P_DEV_REPORTED_ONCE BIT(15)
+#define P2P_DEV_PREFER_PERSISTENT_RECONN BIT(16)
+#define P2P_DEV_PD_BEFORE_GO_NEG BIT(17)
+#define P2P_DEV_NO_PREF_CHAN BIT(18)
+#define P2P_DEV_WAIT_INV_REQ_ACK BIT(19)
+#define P2P_DEV_P2PS_REPORTED BIT(20)
+#define P2P_DEV_PD_PEER_P2PS BIT(21)
+#define P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT BIT(22)
+
unsigned int flags;
int status; /* enum p2p_status_code */
unsigned int wait_count;
+ unsigned int connect_reqs;
unsigned int invitation_reqs;
+ unsigned int sd_reqs;
u16 ext_listen_period;
u16 ext_listen_interval;
u8 go_timeout;
u8 client_timeout;
+
+ /**
+ * go_neg_conf_sent - Number of GO Negotiation Confirmation retries
+ */
+ u8 go_neg_conf_sent;
+
+ /**
+ * freq - Frquency on which the GO Negotiation Confirmation is sent
+ */
+ int go_neg_conf_freq;
+
+ /**
+ * go_neg_conf - GO Negotiation Confirmation frame
+ */
+ struct wpabuf *go_neg_conf;
+
+ int sd_pending_bcast_queries;
};
struct p2p_sd_query {
struct p2p_sd_query *next;
u8 peer[ETH_ALEN];
int for_all_peers;
+ int wsd; /* Wi-Fi Display Service Discovery Request */
struct wpabuf *tlvs;
};
+struct p2p_pending_action_tx {
+ unsigned int freq;
+ u8 dst[ETH_ALEN];
+ u8 src[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ size_t len;
+ unsigned int wait_time;
+ /* Followed by len octets of the frame */
+};
+
/**
* struct p2p_data - P2P module data (internal to P2P module)
*/
int max_disc_int;
/**
+ * max_disc_tu - Maximum number of TUs for discoverable interval
+ */
+ int max_disc_tu;
+
+ /**
* devices - List of known P2P Device peers
*/
struct dl_list devices;
*/
struct p2p_device *invite_peer;
+ /**
+ * last_p2p_find_oper - Pointer to last pre-find operation peer
+ */
+ struct p2p_device *last_p2p_find_oper;
+
const u8 *invite_go_dev_addr;
u8 invite_go_dev_addr_buf[ETH_ALEN];
+ int invite_dev_pw_id;
+
+ unsigned int retry_invite_req:1;
+ unsigned int retry_invite_req_sent:1;
/**
* sd_peer - Pointer to Service Discovery peer
*/
struct p2p_sd_query *sd_query;
+ /**
+ * num_p2p_sd_queries - Total number of broadcast SD queries present in
+ * the list
+ */
+ int num_p2p_sd_queries;
+
/* GO Negotiation data */
/**
/**
* ssid - Selected SSID for GO Negotiation (if local end will be GO)
*/
- u8 ssid[32];
+ u8 ssid[SSID_MAX_LEN];
/**
* ssid_len - ssid length in octets
size_t ssid_len;
/**
+ * ssid_set - Whether SSID is already set for GO Negotiation
+ */
+ int ssid_set;
+
+ /**
* Regulatory class for own operational channel
*/
u8 op_reg_class;
*/
struct p2p_channels channels;
+ struct wpa_freq_range_list no_go_freq;
+
enum p2p_pending_action_state {
P2P_NO_PENDING_ACTION,
P2P_PENDING_GO_NEG_REQUEST,
P2P_PENDING_GO_NEG_CONFIRM,
P2P_PENDING_SD,
P2P_PENDING_PD,
+ P2P_PENDING_PD_RESPONSE,
P2P_PENDING_INVITATION_REQUEST,
P2P_PENDING_INVITATION_RESPONSE,
P2P_PENDING_DEV_DISC_REQUEST,
enum p2p_invite_role inv_role;
u8 inv_bssid[ETH_ALEN];
int inv_bssid_set;
- u8 inv_ssid[32];
+ u8 inv_ssid[SSID_MAX_LEN];
size_t inv_ssid_len;
u8 inv_sa[ETH_ALEN];
u8 inv_group_bssid[ETH_ALEN];
int inv_persistent;
enum p2p_discovery_type find_type;
+ unsigned int last_p2p_find_timeout;
u8 last_prog_scan_class;
u8 last_prog_scan_chan;
int p2p_scan_running;
P2P_AFTER_SCAN_CONNECT
} start_after_scan;
u8 after_scan_peer[ETH_ALEN];
+ struct p2p_pending_action_tx *after_scan_tx;
+ unsigned int after_scan_tx_in_progress:1;
+ unsigned int send_action_in_progress:1;
+
+ /* Requested device types for find/search */
+ unsigned int num_req_dev_types;
+ u8 *req_dev_types;
+ u8 *find_dev_id;
+ u8 find_dev_id_buf[ETH_ALEN];
+
+ struct os_reltime find_start; /* time of last p2p_find start */
struct p2p_group **groups;
size_t num_groups;
u8 peer_filter[ETH_ALEN];
int cross_connect;
+
+ int best_freq_24;
+ int best_freq_5;
+ int best_freq_overall;
+ int own_freq_preference;
+
+ /**
+ * wps_vendor_ext - WPS Vendor Extensions to add
+ */
+ struct wpabuf *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
+
+ /*
+ * user_initiated_pd - Whether a PD request is user initiated or not.
+ */
+ u8 user_initiated_pd;
+
+ /*
+ * Keep track of which peer a given PD request was sent to.
+ * Used to raise a timeout alert in case there is no response.
+ */
+ u8 pending_pd_devaddr[ETH_ALEN];
+
+ /*
+ * Retry counter for provision discovery requests when issued
+ * in IDLE state.
+ */
+ int pd_retries;
+
+ /**
+ * pd_force_freq - Forced frequency for PD retries or 0 to auto-select
+ *
+ * This is is used during PD retries for join-a-group case to use the
+ * correct operating frequency determined from a BSS entry for the GO.
+ */
+ int pd_force_freq;
+
+ u8 go_timeout;
+ u8 client_timeout;
+
+ /* Extra delay in milliseconds between search iterations */
+ unsigned int search_delay;
+ int in_search_delay;
+
+ u8 pending_reg_class;
+ u8 pending_channel;
+ u8 pending_channel_forced;
+
+ /* ASP Support */
+ struct p2ps_advertisement *p2ps_adv_list;
+ struct p2ps_provision *p2ps_prov;
+ u8 wild_card_hash[P2PS_HASH_LEN];
+ u8 p2ps_seek;
+ u8 p2ps_seek_hash[P2P_MAX_QUERY_HASH * P2PS_HASH_LEN];
+ u8 p2ps_seek_count;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ struct wpabuf *wfd_ie_beacon;
+ struct wpabuf *wfd_ie_probe_req;
+ struct wpabuf *wfd_ie_probe_resp;
+ struct wpabuf *wfd_ie_assoc_req;
+ struct wpabuf *wfd_ie_invitation;
+ struct wpabuf *wfd_ie_prov_disc_req;
+ struct wpabuf *wfd_ie_prov_disc_resp;
+ struct wpabuf *wfd_ie_go_neg;
+ struct wpabuf *wfd_dev_info;
+ struct wpabuf *wfd_assoc_bssid;
+ struct wpabuf *wfd_coupled_sink_info;
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ u16 authorized_oob_dev_pw_id;
+
+ struct wpabuf **vendor_elem;
+
+ unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
+ unsigned int num_pref_freq;
};
/**
struct p2p_message {
struct wpabuf *p2p_attributes;
struct wpabuf *wps_attributes;
+ struct wpabuf *wfd_subelems;
u8 dialog_token;
const u8 *minor_reason_code;
+ const u8 *oob_go_neg_channel;
+
/* 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];
+ char device_name[WPS_DEV_NAME_MAX_LEN + 1];
u16 config_methods;
/* WPS IE */
u16 dev_password_id;
+ int dev_password_id_present;
u16 wps_config_methods;
const u8 *wps_pri_dev_type;
+ const u8 *wps_sec_dev_type_list;
+ size_t wps_sec_dev_type_list_len;
+ const u8 *wps_vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
+ size_t wps_vendor_ext_len[P2P_MAX_WPS_VENDOR_EXT];
+ const u8 *manufacturer;
+ size_t manufacturer_len;
+ const u8 *model_name;
+ size_t model_name_len;
+ const u8 *model_number;
+ size_t model_number_len;
+ const u8 *serial_number;
+ size_t serial_number_len;
+ const u8 *oob_dev_password;
+ size_t oob_dev_password_len;
/* DS Parameter Set IE */
const u8 *ds_params;
/* SSID IE */
const u8 *ssid;
+
+ /* P2PS */
+ u8 service_hash_count;
+ const u8 *service_hash;
+
+ const u8 *session_info;
+ size_t session_info_len;
+
+ const u8 *conn_cap;
+
+ const u8 *adv_id;
+ const u8 *adv_mac;
+
+ const u8 *adv_service_instance;
+ size_t adv_service_instance_len;
+
+ const u8 *session_id;
+ const u8 *session_mac;
+
+ const u8 *feature_cap;
+ size_t feature_cap_len;
+
+ const u8 *persistent_dev;
+ const u8 *persistent_ssid;
+ size_t persistent_ssid_len;
+
+ const u8 *pref_freq_list;
+ size_t pref_freq_list_len;
};
/* 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);
+int p2p_channel_to_freq(int op_class, int channel);
+int p2p_freq_to_channel(unsigned int freq, u8 *op_class, u8 *channel);
void p2p_channels_intersect(const struct p2p_channels *a,
const struct p2p_channels *b,
struct p2p_channels *res);
+void p2p_channels_union_inplace(struct p2p_channels *res,
+ const struct p2p_channels *b);
+void p2p_channels_union(const struct p2p_channels *a,
+ const struct p2p_channels *b,
+ struct p2p_channels *res);
+void p2p_channels_remove_freqs(struct p2p_channels *chan,
+ const struct wpa_freq_range_list *list);
int p2p_channels_includes(const struct p2p_channels *channels, u8 reg_class,
u8 channel);
+void p2p_channels_dump(struct p2p_data *p2p, const char *title,
+ const struct p2p_channels *chan);
+int p2p_channel_select(struct p2p_channels *chans, const int *classes,
+ u8 *op_class, u8 *op_channel);
+int p2p_channel_random_social(struct p2p_channels *chans, u8 *op_class,
+ u8 *op_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);
+int p2p_parse_ies_separate(const u8 *wsc, size_t wsc_len, const u8 *p2p,
+ size_t p2p_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,
u8 p2p_group_presence_req(struct p2p_group *group,
const u8 *client_interface_addr,
const u8 *noa, size_t noa_len);
+int p2p_group_is_group_id_match(struct p2p_group *group, const u8 *group_id,
+ size_t group_id_len);
+void p2p_group_update_ies(struct p2p_group *group);
+void p2p_group_force_beacon_update_ies(struct p2p_group *group);
+struct wpabuf * p2p_group_get_wfd_ie(struct p2p_group *g);
+void p2p_buf_add_group_info(struct p2p_group *group, struct wpabuf *buf,
+ int max_clients);
+void p2p_group_buf_add_id(struct p2p_group *group, struct wpabuf *buf);
+int p2p_group_get_freq(struct p2p_group *group);
void p2p_buf_add_action_hdr(struct wpabuf *buf, u8 subtype, u8 dialog_token);
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);
+void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country,
+ u8 oper_class, u8 channel,
+ enum p2p_role_indication role);
+void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p);
+void p2p_buf_add_session_info(struct wpabuf *buf, const char *info);
+void p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap);
+void p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac);
+void p2p_buf_add_service_instance(struct wpabuf *buf, struct p2p_data *p2p,
+ u8 count, const u8 *hash,
+ struct p2ps_advertisement *adv_list);
+void p2p_buf_add_session_id(struct wpabuf *buf, u32 id, const u8 *mac);
+void p2p_buf_add_feature_capability(struct wpabuf *buf, u16 len,
+ const u8 *mask);
+void p2p_buf_add_persistent_group_info(struct wpabuf *buf, const u8 *dev_addr,
+ const u8 *ssid, size_t ssid_len);
+int p2p_build_wps_ie(struct p2p_data *p2p, struct wpabuf *buf, int pw_id,
+ int all_attr);
+void p2p_buf_add_pref_channel_list(struct wpabuf *buf,
+ const u32 *preferred_freq_list, u32 size);
/* p2p_sd.c */
struct p2p_sd_query * p2p_pending_sd_req(struct p2p_data *p2p,
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);
+u16 p2p_wps_method_pw_id(enum p2p_wps_method wps_method);
+void p2p_reselect_channel(struct p2p_data *p2p,
+ struct p2p_channels *intersection);
+void p2p_check_pref_chan(struct p2p_data *p2p, int go,
+ struct p2p_device *dev, struct p2p_message *msg);
/* p2p_pd.c */
void p2p_process_prov_disc_req(struct p2p_data *p2p, const u8 *sa,
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);
+ int join, int force_freq);
+void p2p_reset_pending_pd(struct p2p_data *p2p);
+void p2ps_prov_free(struct p2p_data *p2p);
/* p2p_invitation.c */
void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa,
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);
+ const u8 *go_dev_addr, int dev_pw_id);
void p2p_invitation_req_cb(struct p2p_data *p2p, int success);
void p2p_invitation_resp_cb(struct p2p_data *p2p, int success);
struct p2p_message *msg);
void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
struct p2p_device *dev, struct p2p_message *msg);
+int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
+ struct os_reltime *rx_time, int level, const u8 *ies,
+ size_t ies_len, int scan_res);
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_neg_failed(struct p2p_data *p2p, 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);
+struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p,
+ const u8 *query_hash,
+ u8 query_count);
void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len);
+int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
+ const u8 *src, const u8 *bssid, const u8 *buf,
+ size_t len, unsigned int wait_time);
+void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq);
+int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
+ unsigned int force_freq, unsigned int pref_freq,
+ int go);
+void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx);
+int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev,
+ u8 *status);
+void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
+PRINTF_FORMAT(2, 3);
+void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
+PRINTF_FORMAT(2, 3);
+void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
+PRINTF_FORMAT(2, 3);
#endif /* P2P_I_H */
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