hostap/wpa_supplicant/p2p_supplicant.h
Jouni Malinen dfaf11d648 P2P: Require fresh scan results for persistent group re-invocation
The P2P group is not yet operating when going through invitation
exchange for re-invocation. Previously, an old cached scan result could
be used to skip the scan immediately after the invitation exchange.
While this may result in the fastest possible connection, it does have
some issues with cases where the GO takes some time to start up. It
would also be at least theoretically possible for some of the BSS
parameters to be different, so having a fresh scan result from the new
GO instance may be desired in any case.

Add a mechanism to skip scan results that have been last updated before
a specific point in time and as the first user for this mechanism,
require chan results to be more recent than the invitation message
exchange for the P2P Client role in persistent group re-invocation case.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2015-08-22 00:22:12 +03:00

336 lines
12 KiB
C

/*
* wpa_supplicant - P2P
* Copyright (c) 2009-2010, Atheros Communications
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef P2P_SUPPLICANT_H
#define P2P_SUPPLICANT_H
enum p2p_wps_method;
struct p2p_go_neg_results;
enum p2p_send_action_result;
struct p2p_peer_info;
struct p2p_channels;
struct wps_event_fail;
struct p2ps_provision;
enum wpas_p2p_channel_update_trig {
WPAS_P2P_CHANNEL_UPDATE_ANY,
WPAS_P2P_CHANNEL_UPDATE_DRIVER,
WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE,
WPAS_P2P_CHANNEL_UPDATE_AVOID,
WPAS_P2P_CHANNEL_UPDATE_DISALLOW,
WPAS_P2P_CHANNEL_UPDATE_CS,
};
int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
const char *conf_p2p_dev);
struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
const u8 *ssid, size_t ssid_len);
struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
const u8 *peer_dev_addr);
int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
const char *pin, enum p2p_wps_method wps_method,
int persistent_group, int auto_join, int join,
int auth, int go_intent, int freq, int persistent_id,
int pd, int ht40, int vht);
int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s,
int freq, struct wpa_ssid *ssid);
int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
int freq, int ht40, int vht);
int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid, int addr_allocated,
int force_freq, int neg_freq, int ht40,
int vht, const struct p2p_channels *channels,
int connection_timeout, int force_scan);
struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid);
enum wpas_p2p_prov_disc_use {
WPAS_P2P_PD_FOR_GO_NEG,
WPAS_P2P_PD_FOR_JOIN,
WPAS_P2P_PD_AUTO,
WPAS_P2P_PD_FOR_ASP
};
int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
const char *config_method,
enum wpas_p2p_prov_disc_use use,
struct p2ps_provision *p2ps_prov);
void wpas_send_action_tx_status(struct wpa_supplicant *wpa_s, const u8 *dst,
const u8 *data, size_t data_len,
enum p2p_send_action_result result);
int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
char *end);
enum p2p_discovery_type;
int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
enum p2p_discovery_type type,
unsigned int num_req_dev_types, const u8 *req_dev_types,
const u8 *dev_id, unsigned int search_delay,
u8 seek_cnt, const char **seek_string, int freq);
void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s);
int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout);
int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout);
int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
u8 *buf, size_t len, int p2p_group);
void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies);
u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
const struct wpabuf *tlvs);
u64 wpas_p2p_sd_request_asp(struct wpa_supplicant *wpa_s, const u8 *dst, u8 id,
const char *svc_str, const char *info_substr);
u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
u8 version, const char *query);
u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
const u8 *dst, const char *role);
int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req);
void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
const u8 *dst, u8 dialog_token,
const struct wpabuf *resp_tlvs);
void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s);
void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s);
int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
struct wpabuf *query, struct wpabuf *resp);
int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
const struct wpabuf *query);
int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
const char *service);
int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
const char *service);
int wpas_p2p_service_add_asp(struct wpa_supplicant *wpa_s, int auto_accept,
u32 adv_id, const char *adv_str, u8 svc_state,
u16 config_methods, const char *svc_info,
const u8 *cpt_priority);
int wpas_p2p_service_del_asp(struct wpa_supplicant *wpa_s, u32 adv_id);
void wpas_p2p_service_flush_asp(struct wpa_supplicant *wpa_s);
int wpas_p2p_service_p2ps_id_exists(struct wpa_supplicant *wpa_s, u32 adv_id);
void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
u16 update_indic, const u8 *tlvs, size_t tlvs_len);
void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
const u8 *tlvs, size_t tlvs_len);
int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr);
int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
int ht40, int vht, int pref_freq);
int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
const u8 *peer_addr, const u8 *go_dev_addr);
int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
u32 interval1, u32 duration2, u32 interval2);
int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
unsigned int interval);
int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
u16 reason_code, const u8 *ie, size_t ie_len,
int locally_generated);
void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
u16 reason_code, const u8 *ie, size_t ie_len,
int locally_generated);
int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
int duration);
int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled);
int wpas_p2p_cancel(struct wpa_supplicant *wpa_s);
int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr);
int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s);
struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
const u8 *addr, const u8 *ssid,
size_t ssid_len);
void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
const u8 *addr);
int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s);
int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
struct hostapd_hw_modes *mode, u8 channel);
int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
struct hostapd_hw_modes *mode, u8 channel);
unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s);
void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
const u8 *p2p_dev_addr,
const u8 *psk, size_t psk_len);
void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
int iface_addr);
struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
int ndef);
struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
int ndef, int tag);
int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
const struct wpabuf *data, int forced_freq);
int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
const struct wpabuf *req,
const struct wpabuf *sel, int forced_freq);
int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled);
void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx);
#ifdef CONFIG_P2P
int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s);
void wpas_p2p_deinit(struct wpa_supplicant *wpa_s);
void wpas_p2p_completed(struct wpa_supplicant *wpa_s);
void wpas_p2p_update_config(struct wpa_supplicant *wpa_s);
int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
const u8 *dst, const u8 *bssid,
const u8 *ie, size_t ie_len,
unsigned int rx_freq, int ssi_signal);
void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
int registrar);
void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
enum wpas_p2p_channel_update_trig trig);
void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
int freq_24, int freq_5, int freq_overall);
void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
const u8 *sa, const u8 *bssid,
u8 category, const u8 *data, size_t len, int freq);
void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
unsigned int freq, unsigned int duration);
void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
unsigned int freq);
void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s);
void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s);
void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s);
int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s);
int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s);
void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s);
void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s);
void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s);
void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s);
void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid);
int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s);
int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s);
void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
struct wps_event_fail *fail);
int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname);
#else /* CONFIG_P2P */
static inline int
wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
{
return 0;
}
static inline void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
{
}
static inline int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s,
const u8 *addr,
const u8 *dst, const u8 *bssid,
const u8 *ie, size_t ie_len,
unsigned int rx_freq, int ssi_signal)
{
return 0;
}
static inline void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s,
const u8 *peer_addr, int registrar)
{
}
static inline void
wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
enum wpas_p2p_channel_update_trig trig)
{
}
static inline void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
int freq_24, int freq_5,
int freq_overall)
{
}
static inline void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s,
const u8 *da,
const u8 *sa, const u8 *bssid,
u8 category, const u8 *data, size_t len,
int freq)
{
}
static inline void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
unsigned int freq,
unsigned int duration)
{
}
static inline void
wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
unsigned int freq)
{
}
static inline void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
{
}
static inline int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
{
return 0;
}
static inline int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
{
return 0;
}
static inline void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
{
}
static inline void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
}
static inline int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
{
return 0;
}
static inline int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
{
return 0;
}
static inline void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
struct wps_event_fail *fail)
{
}
static inline int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s,
const char *ifname)
{
return 0;
}
#endif /* CONFIG_P2P */
#endif /* P2P_SUPPLICANT_H */