![Jouni Malinen](/assets/img/avatar_default.png)
This makes it easier to change the internal struct wpa_bss design for storing the variable length IE buffers. Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
9845 lines
278 KiB
C
9845 lines
278 KiB
C
/*
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* wpa_supplicant - P2P
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* Copyright (c) 2009-2010, Atheros Communications
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* Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "eloop.h"
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#include "common/ieee802_11_common.h"
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#include "common/ieee802_11_defs.h"
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#include "common/wpa_ctrl.h"
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#include "wps/wps_i.h"
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#include "p2p/p2p.h"
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#include "ap/hostapd.h"
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#include "ap/ap_config.h"
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#include "ap/sta_info.h"
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#include "ap/ap_drv_ops.h"
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#include "ap/wps_hostapd.h"
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#include "ap/p2p_hostapd.h"
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#include "ap/dfs.h"
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#include "eapol_supp/eapol_supp_sm.h"
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#include "rsn_supp/wpa.h"
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#include "wpa_supplicant_i.h"
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#include "driver_i.h"
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#include "ap.h"
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#include "config_ssid.h"
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#include "config.h"
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#include "notify.h"
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#include "scan.h"
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#include "bss.h"
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#include "offchannel.h"
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#include "wps_supplicant.h"
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#include "p2p_supplicant.h"
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#include "wifi_display.h"
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/*
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* How many times to try to scan to find the GO before giving up on join
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* request.
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*/
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#define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
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#define P2P_AUTO_PD_SCAN_ATTEMPTS 5
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/**
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* Defines time interval in seconds when a GO needs to evacuate a frequency that
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* it is currently using, but is no longer valid for P2P use cases.
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*/
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#define P2P_GO_FREQ_CHANGE_TIME 5
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/**
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* Defines CSA parameters which are used when GO evacuates the no longer valid
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* channel (and if the driver supports channel switch).
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*/
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#define P2P_GO_CSA_COUNT 7
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#define P2P_GO_CSA_BLOCK_TX 0
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#ifndef P2P_MAX_CLIENT_IDLE
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/*
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* How many seconds to try to reconnect to the GO when connection in P2P client
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* role has been lost.
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*/
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#define P2P_MAX_CLIENT_IDLE 10
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#endif /* P2P_MAX_CLIENT_IDLE */
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#ifndef P2P_MAX_INITIAL_CONN_WAIT
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/*
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* How many seconds to wait for initial 4-way handshake to get completed after
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* WPS provisioning step or after the re-invocation of a persistent group on a
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* P2P Client.
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*/
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#define P2P_MAX_INITIAL_CONN_WAIT 10
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#endif /* P2P_MAX_INITIAL_CONN_WAIT */
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#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
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/*
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* How many seconds to wait for initial 4-way handshake to get completed after
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* WPS provisioning step on the GO. This controls the extra time the P2P
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* operation is considered to be in progress (e.g., to delay other scans) after
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* WPS provisioning has been completed on the GO during group formation.
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*/
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#define P2P_MAX_INITIAL_CONN_WAIT_GO 10
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#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
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#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
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/*
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* How many seconds to wait for initial 4-way handshake to get completed after
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* re-invocation of a persistent group on the GO when the client is expected
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* to connect automatically (no user interaction).
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*/
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#define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
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#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
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#define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
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/*
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* How many seconds to wait to re-attempt to move GOs, in case previous attempt
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* was not possible.
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*/
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#define P2P_RECONSIDER_GO_MOVE_DELAY 30
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enum p2p_group_removal_reason {
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P2P_GROUP_REMOVAL_UNKNOWN,
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P2P_GROUP_REMOVAL_SILENT,
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P2P_GROUP_REMOVAL_FORMATION_FAILED,
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P2P_GROUP_REMOVAL_REQUESTED,
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P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
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P2P_GROUP_REMOVAL_UNAVAILABLE,
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P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
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P2P_GROUP_REMOVAL_PSK_FAILURE,
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P2P_GROUP_REMOVAL_FREQ_CONFLICT,
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P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
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};
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static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
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static struct wpa_supplicant *
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wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
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int go);
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static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
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const u8 *ssid, size_t ssid_len);
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static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
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int *force_freq, int *pref_freq, int go,
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unsigned int *pref_freq_list,
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unsigned int *num_pref_freq);
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static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
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const u8 *ssid, size_t ssid_len);
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static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
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static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
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const u8 *dev_addr, enum p2p_wps_method wps_method,
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int auto_join, int freq,
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const u8 *ssid, size_t ssid_len);
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static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
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static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
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static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
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static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
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static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
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void *timeout_ctx);
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static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
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static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
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int group_added);
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static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
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static void wpas_stop_listen(void *ctx);
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static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
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static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
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static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
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enum wpa_driver_if_type type);
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static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
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int already_deleted);
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static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
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struct wpa_used_freq_data *freqs,
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unsigned int num);
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static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
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static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
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static void
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wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
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struct wpa_used_freq_data *freqs, unsigned int num,
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enum wpas_p2p_channel_update_trig trig);
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static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
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/*
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* Get the number of concurrent channels that the HW can operate, but that are
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* currently not in use by any of the wpa_supplicant interfaces.
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*/
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static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
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{
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int *freqs;
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int num, unused;
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freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
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if (!freqs)
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return -1;
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num = get_shared_radio_freqs(wpa_s, freqs,
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wpa_s->num_multichan_concurrent);
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os_free(freqs);
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unused = wpa_s->num_multichan_concurrent - num;
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wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
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return unused;
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}
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/*
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* Get the frequencies that are currently in use by one or more of the virtual
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* interfaces, and that are also valid for P2P operation.
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*/
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static unsigned int
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wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
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struct wpa_used_freq_data *p2p_freqs,
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unsigned int len)
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{
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struct wpa_used_freq_data *freqs;
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unsigned int num, i, j;
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freqs = os_calloc(wpa_s->num_multichan_concurrent,
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sizeof(struct wpa_used_freq_data));
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if (!freqs)
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return 0;
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num = get_shared_radio_freqs_data(wpa_s, freqs,
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wpa_s->num_multichan_concurrent);
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os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
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for (i = 0, j = 0; i < num && j < len; i++) {
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if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
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p2p_freqs[j++] = freqs[i];
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}
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os_free(freqs);
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dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
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return j;
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}
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static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
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int freq)
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{
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if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
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return;
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/* Use the wpa_s used to control the P2P Device operation */
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wpa_s = wpa_s->global->p2p_init_wpa_s;
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if (wpa_s->conf->p2p_ignore_shared_freq &&
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freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
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wpas_p2p_num_unused_channels(wpa_s) > 0) {
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wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
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freq);
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freq = 0;
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}
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p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
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}
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static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
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struct wpa_scan_results *scan_res)
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{
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size_t i;
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if (wpa_s->p2p_scan_work) {
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struct wpa_radio_work *work = wpa_s->p2p_scan_work;
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wpa_s->p2p_scan_work = NULL;
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radio_work_done(work);
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}
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if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
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return;
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wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
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(int) scan_res->num);
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for (i = 0; i < scan_res->num; i++) {
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struct wpa_scan_res *bss = scan_res->res[i];
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struct os_reltime time_tmp_age, entry_ts;
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const u8 *ies;
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size_t ies_len;
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time_tmp_age.sec = bss->age / 1000;
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time_tmp_age.usec = (bss->age % 1000) * 1000;
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os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
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ies = (const u8 *) (bss + 1);
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ies_len = bss->ie_len;
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if (bss->beacon_ie_len > 0 &&
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!wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
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wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
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wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
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MACSTR, MAC2STR(bss->bssid));
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ies = ies + ies_len;
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ies_len = bss->beacon_ie_len;
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}
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if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
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bss->freq, &entry_ts, bss->level,
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ies, ies_len) > 0)
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break;
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}
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p2p_scan_res_handled(wpa_s->global->p2p);
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}
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static int wpas_p2p_add_scan_freq_list(struct wpa_supplicant *wpa_s,
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enum hostapd_hw_mode band,
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struct wpa_driver_scan_params *params)
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{
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struct hostapd_hw_modes *mode;
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int num_chans = 0;
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int *freqs, i;
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mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, band, 0);
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if (!mode)
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return -1;
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if (params->freqs) {
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while (params->freqs[num_chans])
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num_chans++;
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}
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freqs = os_realloc(params->freqs,
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(num_chans + mode->num_channels + 1) * sizeof(int));
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if (!freqs)
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return -1;
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params->freqs = freqs;
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for (i = 0; i < mode->num_channels; i++) {
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if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
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continue;
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params->freqs[num_chans++] = mode->channels[i].freq;
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}
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params->freqs[num_chans] = 0;
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return 0;
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}
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static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
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{
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struct wpa_supplicant *wpa_s = work->wpa_s;
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struct wpa_driver_scan_params *params = work->ctx;
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int ret;
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if (deinit) {
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if (!work->started) {
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wpa_scan_free_params(params);
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return;
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}
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wpa_s->p2p_scan_work = NULL;
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return;
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}
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if (wpa_s->clear_driver_scan_cache) {
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wpa_printf(MSG_DEBUG,
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"Request driver to clear scan cache due to local BSS flush");
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params->only_new_results = 1;
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}
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if (wpa_s->conf->p2p_6ghz_disable && !params->freqs) {
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wpa_printf(MSG_DEBUG,
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"P2P: 6 GHz disabled - update the scan frequency list");
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wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211G,
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params);
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wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211A,
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params);
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}
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ret = wpa_drv_scan(wpa_s, params);
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if (ret == 0)
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wpa_s->curr_scan_cookie = params->scan_cookie;
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wpa_scan_free_params(params);
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work->ctx = NULL;
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if (ret) {
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radio_work_done(work);
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p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
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return;
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}
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p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
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os_get_reltime(&wpa_s->scan_trigger_time);
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wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
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wpa_s->own_scan_requested = 1;
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wpa_s->clear_driver_scan_cache = 0;
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wpa_s->p2p_scan_work = work;
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}
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static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
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int freq)
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{
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if (wpa_s->global->p2p_24ghz_social_channels &&
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(freq == 2412 || freq == 2437 || freq == 2462)) {
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/*
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* Search all social channels regardless of whether these have
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* been disabled for P2P operating channel use to avoid missing
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* peers.
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*/
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return 1;
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}
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return p2p_supported_freq(wpa_s->global->p2p, freq);
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}
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static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
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unsigned int num_req_dev_types,
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const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
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{
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struct wpa_supplicant *wpa_s = ctx;
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struct wpa_driver_scan_params *params = NULL;
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struct wpabuf *wps_ie, *ies;
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unsigned int num_channels = 0;
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int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
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size_t ielen;
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u8 *n, i;
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unsigned int bands;
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if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
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return -1;
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if (wpa_s->p2p_scan_work) {
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wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
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return -1;
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}
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params = os_zalloc(sizeof(*params));
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if (params == NULL)
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return -1;
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/* P2P Wildcard SSID */
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params->num_ssids = 1;
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n = os_malloc(P2P_WILDCARD_SSID_LEN);
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if (n == NULL)
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goto fail;
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os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
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params->ssids[0].ssid = n;
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params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
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wpa_s->wps->dev.p2p = 1;
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wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
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wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
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num_req_dev_types, req_dev_types);
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if (wps_ie == NULL)
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goto fail;
|
|
|
|
switch (type) {
|
|
case P2P_SCAN_SOCIAL:
|
|
params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
|
|
sizeof(int));
|
|
if (params->freqs == NULL)
|
|
goto fail;
|
|
for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
|
|
if (wpas_p2p_search_social_channel(
|
|
wpa_s, social_channels_freq[i]))
|
|
params->freqs[num_channels++] =
|
|
social_channels_freq[i];
|
|
}
|
|
params->freqs[num_channels++] = 0;
|
|
break;
|
|
case P2P_SCAN_FULL:
|
|
break;
|
|
case P2P_SCAN_SPECIFIC:
|
|
params->freqs = os_calloc(2, sizeof(int));
|
|
if (params->freqs == NULL)
|
|
goto fail;
|
|
params->freqs[0] = freq;
|
|
params->freqs[1] = 0;
|
|
break;
|
|
case P2P_SCAN_SOCIAL_PLUS_ONE:
|
|
params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
|
|
sizeof(int));
|
|
if (params->freqs == NULL)
|
|
goto fail;
|
|
for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
|
|
if (wpas_p2p_search_social_channel(
|
|
wpa_s, social_channels_freq[i]))
|
|
params->freqs[num_channels++] =
|
|
social_channels_freq[i];
|
|
}
|
|
if (p2p_supported_freq(wpa_s->global->p2p, freq))
|
|
params->freqs[num_channels++] = freq;
|
|
params->freqs[num_channels++] = 0;
|
|
break;
|
|
}
|
|
|
|
ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
|
|
ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
|
|
if (ies == NULL) {
|
|
wpabuf_free(wps_ie);
|
|
goto fail;
|
|
}
|
|
wpabuf_put_buf(ies, wps_ie);
|
|
wpabuf_free(wps_ie);
|
|
|
|
bands = wpas_get_bands(wpa_s, params->freqs);
|
|
p2p_scan_ie(wpa_s->global->p2p, ies, dev_id, bands);
|
|
|
|
params->p2p_probe = 1;
|
|
n = os_malloc(wpabuf_len(ies));
|
|
if (n == NULL) {
|
|
wpabuf_free(ies);
|
|
goto fail;
|
|
}
|
|
os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
|
|
params->extra_ies = n;
|
|
params->extra_ies_len = wpabuf_len(ies);
|
|
wpabuf_free(ies);
|
|
|
|
radio_remove_works(wpa_s, "p2p-scan", 0);
|
|
if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
|
|
params) < 0)
|
|
goto fail;
|
|
return 0;
|
|
|
|
fail:
|
|
wpa_scan_free_params(params);
|
|
return -1;
|
|
}
|
|
|
|
|
|
static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
|
|
{
|
|
switch (p2p_group_interface) {
|
|
case P2P_GROUP_INTERFACE_PENDING:
|
|
return WPA_IF_P2P_GROUP;
|
|
case P2P_GROUP_INTERFACE_GO:
|
|
return WPA_IF_P2P_GO;
|
|
case P2P_GROUP_INTERFACE_CLIENT:
|
|
return WPA_IF_P2P_CLIENT;
|
|
}
|
|
|
|
return WPA_IF_P2P_GROUP;
|
|
}
|
|
|
|
|
|
static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
|
|
const u8 *ssid,
|
|
size_t ssid_len, int *go)
|
|
{
|
|
struct wpa_ssid *s;
|
|
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
for (s = wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled != 0 || !s->p2p_group ||
|
|
s->ssid_len != ssid_len ||
|
|
os_memcmp(ssid, s->ssid, ssid_len) != 0)
|
|
continue;
|
|
if (s->mode == WPAS_MODE_P2P_GO &&
|
|
s != wpa_s->current_ssid)
|
|
continue;
|
|
if (go)
|
|
*go = s->mode == WPAS_MODE_P2P_GO;
|
|
return wpa_s;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Complete previously requested removal of %s",
|
|
wpa_s->ifname);
|
|
wpas_p2p_disconnect(wpa_s);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
|
|
struct wpa_supplicant *calling_wpa_s)
|
|
{
|
|
if (calling_wpa_s == wpa_s && wpa_s &&
|
|
wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
|
|
/*
|
|
* The calling wpa_s instance is going to be removed. Do that
|
|
* from an eloop callback to keep the instance available until
|
|
* the caller has returned. This may be needed, e.g., to provide
|
|
* control interface responses on the per-interface socket.
|
|
*/
|
|
if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
|
|
wpa_s, NULL) < 0)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
return wpas_p2p_disconnect(wpa_s);
|
|
}
|
|
|
|
|
|
/* Determine total number of clients in active groups where we are the GO */
|
|
static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
|
|
{
|
|
unsigned int count = 0;
|
|
struct wpa_ssid *s;
|
|
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
for (s = wpa_s->conf->ssid; s; s = s->next) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
|
|
wpa_s, s, s->disabled, s->p2p_group,
|
|
s->mode);
|
|
if (!s->disabled && s->p2p_group &&
|
|
s->mode == WPAS_MODE_P2P_GO) {
|
|
count += p2p_get_group_num_members(
|
|
wpa_s->p2p_group);
|
|
}
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
|
|
static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
|
|
{
|
|
return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
|
|
!wpa_s->current_ssid->disabled &&
|
|
wpa_s->current_ssid->p2p_group &&
|
|
wpa_s->current_ssid->p2p_persistent_group;
|
|
}
|
|
|
|
|
|
static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
|
|
{
|
|
return p2p_is_active_persistent_group(wpa_s) &&
|
|
wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
|
|
}
|
|
|
|
|
|
/* Find an interface for a P2P group where we are the GO */
|
|
static struct wpa_supplicant *
|
|
wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_supplicant *save = NULL;
|
|
|
|
if (!wpa_s)
|
|
return NULL;
|
|
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (!p2p_is_active_persistent_go(wpa_s))
|
|
continue;
|
|
|
|
/* Prefer a group with connected clients */
|
|
if (p2p_get_group_num_members(wpa_s->p2p_group))
|
|
return wpa_s;
|
|
save = wpa_s;
|
|
}
|
|
|
|
/* No group with connected clients, so pick the one without (if any) */
|
|
return save;
|
|
}
|
|
|
|
|
|
static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
|
|
{
|
|
return p2p_is_active_persistent_group(wpa_s) &&
|
|
wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
|
|
}
|
|
|
|
|
|
/* Find an interface for a P2P group where we are the P2P Client */
|
|
static struct wpa_supplicant *
|
|
wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
|
|
{
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (p2p_is_active_persistent_cli(wpa_s))
|
|
return wpa_s;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Find a persistent group where we are the GO */
|
|
static struct wpa_ssid *
|
|
wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_ssid *s;
|
|
|
|
for (s = wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
|
|
return s;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role,
|
|
unsigned int *force_freq,
|
|
unsigned int *pref_freq)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *s;
|
|
u8 conncap = P2PS_SETUP_NONE;
|
|
unsigned int owned_members = 0;
|
|
struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
|
|
struct wpa_ssid *persistent_go;
|
|
int p2p_no_group_iface;
|
|
unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
|
|
|
|
if (force_freq)
|
|
*force_freq = 0;
|
|
if (pref_freq)
|
|
*pref_freq = 0;
|
|
|
|
size = P2P_MAX_PREF_CHANNELS;
|
|
if (force_freq && pref_freq &&
|
|
!wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq,
|
|
(int *) pref_freq, 0, pref_freq_list, &size))
|
|
wpas_p2p_set_own_freq_preference(wpa_s,
|
|
*force_freq ? *force_freq :
|
|
*pref_freq);
|
|
|
|
/*
|
|
* For non-concurrent capable devices:
|
|
* If persistent_go, then no new.
|
|
* If GO, then no client.
|
|
* If client, then no GO.
|
|
*/
|
|
go_wpa_s = wpas_p2p_get_go_group(wpa_s);
|
|
if (go_wpa_s)
|
|
owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
|
|
persistent_go = wpas_p2p_get_persistent_go(wpa_s);
|
|
p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
|
|
cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
|
|
go_wpa_s, owned_members, cli_wpa_s, persistent_go);
|
|
|
|
/* If not concurrent, restrict our choices */
|
|
if (p2p_no_group_iface) {
|
|
wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
|
|
|
|
if (cli_wpa_s)
|
|
return P2PS_SETUP_NONE;
|
|
|
|
if (go_wpa_s) {
|
|
if (role == P2PS_SETUP_CLIENT ||
|
|
incoming == P2PS_SETUP_GROUP_OWNER ||
|
|
p2p_client_limit_reached(go_wpa_s->p2p_group))
|
|
return P2PS_SETUP_NONE;
|
|
|
|
return P2PS_SETUP_GROUP_OWNER;
|
|
}
|
|
|
|
if (persistent_go) {
|
|
if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
|
|
if (!incoming)
|
|
return P2PS_SETUP_GROUP_OWNER |
|
|
P2PS_SETUP_CLIENT;
|
|
if (incoming == P2PS_SETUP_NEW) {
|
|
u8 r;
|
|
|
|
if (os_get_random(&r, sizeof(r)) < 0 ||
|
|
(r & 1))
|
|
return P2PS_SETUP_CLIENT;
|
|
return P2PS_SETUP_GROUP_OWNER;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If a required role has been specified, handle it here */
|
|
if (role && role != P2PS_SETUP_NEW) {
|
|
switch (incoming) {
|
|
case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
|
|
case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
|
|
/*
|
|
* Peer has an active GO, so if the role allows it and
|
|
* we do not have any active roles, become client.
|
|
*/
|
|
if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
|
|
!cli_wpa_s)
|
|
return P2PS_SETUP_CLIENT;
|
|
|
|
/* fall through */
|
|
|
|
case P2PS_SETUP_NONE:
|
|
case P2PS_SETUP_NEW:
|
|
conncap = role;
|
|
goto grp_owner;
|
|
|
|
case P2PS_SETUP_GROUP_OWNER:
|
|
/*
|
|
* Must be a complimentary role - cannot be a client to
|
|
* more than one peer.
|
|
*/
|
|
if (incoming == role || cli_wpa_s)
|
|
return P2PS_SETUP_NONE;
|
|
|
|
return P2PS_SETUP_CLIENT;
|
|
|
|
case P2PS_SETUP_CLIENT:
|
|
/* Must be a complimentary role */
|
|
if (incoming != role) {
|
|
conncap = P2PS_SETUP_GROUP_OWNER;
|
|
goto grp_owner;
|
|
}
|
|
/* fall through */
|
|
|
|
default:
|
|
return P2PS_SETUP_NONE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* For now, we only will support ownership of one group, and being a
|
|
* client of one group. Therefore, if we have either an existing GO
|
|
* group, or an existing client group, we will not do a new GO
|
|
* negotiation, but rather try to re-use the existing groups.
|
|
*/
|
|
switch (incoming) {
|
|
case P2PS_SETUP_NONE:
|
|
case P2PS_SETUP_NEW:
|
|
if (cli_wpa_s)
|
|
conncap = P2PS_SETUP_GROUP_OWNER;
|
|
else if (!owned_members)
|
|
conncap = P2PS_SETUP_NEW;
|
|
else if (incoming == P2PS_SETUP_NONE)
|
|
conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
|
|
else
|
|
conncap = P2PS_SETUP_CLIENT;
|
|
break;
|
|
|
|
case P2PS_SETUP_CLIENT:
|
|
conncap = P2PS_SETUP_GROUP_OWNER;
|
|
break;
|
|
|
|
case P2PS_SETUP_GROUP_OWNER:
|
|
if (!cli_wpa_s)
|
|
conncap = P2PS_SETUP_CLIENT;
|
|
break;
|
|
|
|
case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
|
|
case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
|
|
if (cli_wpa_s)
|
|
conncap = P2PS_SETUP_GROUP_OWNER;
|
|
else {
|
|
u8 r;
|
|
|
|
if (os_get_random(&r, sizeof(r)) < 0 ||
|
|
(r & 1))
|
|
conncap = P2PS_SETUP_CLIENT;
|
|
else
|
|
conncap = P2PS_SETUP_GROUP_OWNER;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return P2PS_SETUP_NONE;
|
|
}
|
|
|
|
grp_owner:
|
|
if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
|
|
(!incoming && (conncap & P2PS_SETUP_NEW))) {
|
|
if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
|
|
conncap &= ~P2PS_SETUP_GROUP_OWNER;
|
|
|
|
s = wpas_p2p_get_persistent_go(wpa_s);
|
|
if (!s && !go_wpa_s && p2p_no_group_iface) {
|
|
p2p_set_intended_addr(wpa_s->global->p2p,
|
|
wpa_s->p2p_mgmt ?
|
|
wpa_s->parent->own_addr :
|
|
wpa_s->own_addr);
|
|
} else if (!s && !go_wpa_s) {
|
|
if (wpas_p2p_add_group_interface(wpa_s,
|
|
WPA_IF_P2P_GROUP) < 0) {
|
|
wpa_printf(MSG_ERROR,
|
|
"P2P: Failed to allocate a new interface for the group");
|
|
return P2PS_SETUP_NONE;
|
|
}
|
|
wpa_s->global->pending_group_iface_for_p2ps = 1;
|
|
p2p_set_intended_addr(wpa_s->global->p2p,
|
|
wpa_s->pending_interface_addr);
|
|
}
|
|
}
|
|
|
|
return conncap;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
|
|
enum p2p_group_removal_reason removal_reason)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
char *gtype;
|
|
const char *reason;
|
|
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid == NULL) {
|
|
/*
|
|
* The current SSID was not known, but there may still be a
|
|
* pending P2P group interface waiting for provisioning or a
|
|
* P2P group that is trying to reconnect.
|
|
*/
|
|
ssid = wpa_s->conf->ssid;
|
|
while (ssid) {
|
|
if (ssid->p2p_group && ssid->disabled != 2)
|
|
break;
|
|
ssid = ssid->next;
|
|
}
|
|
if (ssid == NULL &&
|
|
wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
|
|
{
|
|
wpa_printf(MSG_ERROR, "P2P: P2P group interface "
|
|
"not found");
|
|
return -1;
|
|
}
|
|
}
|
|
if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
|
|
gtype = "GO";
|
|
else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
|
|
(ssid && ssid->mode == WPAS_MODE_INFRA)) {
|
|
wpa_s->reassociate = 0;
|
|
wpa_s->disconnected = 1;
|
|
gtype = "client";
|
|
} else
|
|
gtype = "GO";
|
|
|
|
if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
|
|
wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
|
|
|
|
if (os_strcmp(gtype, "client") == 0) {
|
|
wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
|
|
if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
|
|
wpa_s, NULL)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
|
|
removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
|
|
eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
|
|
wpa_s, NULL);
|
|
}
|
|
}
|
|
|
|
if (wpa_s->cross_connect_in_use) {
|
|
wpa_s->cross_connect_in_use = 0;
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
|
|
wpa_s->ifname, wpa_s->cross_connect_uplink);
|
|
}
|
|
switch (removal_reason) {
|
|
case P2P_GROUP_REMOVAL_REQUESTED:
|
|
reason = " reason=REQUESTED";
|
|
break;
|
|
case P2P_GROUP_REMOVAL_FORMATION_FAILED:
|
|
reason = " reason=FORMATION_FAILED";
|
|
break;
|
|
case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
|
|
reason = " reason=IDLE";
|
|
break;
|
|
case P2P_GROUP_REMOVAL_UNAVAILABLE:
|
|
reason = " reason=UNAVAILABLE";
|
|
break;
|
|
case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
|
|
reason = " reason=GO_ENDING_SESSION";
|
|
break;
|
|
case P2P_GROUP_REMOVAL_PSK_FAILURE:
|
|
reason = " reason=PSK_FAILURE";
|
|
break;
|
|
case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
|
|
reason = " reason=FREQ_CONFLICT";
|
|
break;
|
|
default:
|
|
reason = "";
|
|
break;
|
|
}
|
|
if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_GROUP_REMOVED "%s %s%s",
|
|
wpa_s->ifname, gtype, reason);
|
|
}
|
|
|
|
if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
|
|
if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
|
|
if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL) > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
|
|
"timeout");
|
|
wpa_s->p2p_in_provisioning = 0;
|
|
wpas_p2p_group_formation_failed(wpa_s, 1);
|
|
}
|
|
|
|
wpa_s->p2p_in_invitation = 0;
|
|
eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
|
|
|
|
/*
|
|
* Make sure wait for the first client does not remain active after the
|
|
* group has been removed.
|
|
*/
|
|
wpa_s->global->p2p_go_wait_client.sec = 0;
|
|
|
|
if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
|
|
struct wpa_global *global;
|
|
char *ifname;
|
|
enum wpa_driver_if_type type;
|
|
wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
|
|
wpa_s->ifname);
|
|
global = wpa_s->global;
|
|
ifname = os_strdup(wpa_s->ifname);
|
|
type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
|
|
eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
|
|
wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
|
|
wpa_s = global->ifaces;
|
|
if (wpa_s && ifname)
|
|
wpa_drv_if_remove(wpa_s, type, ifname);
|
|
os_free(ifname);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* The primary interface was used for P2P group operations, so
|
|
* need to reset its p2pdev.
|
|
*/
|
|
wpa_s->p2pdev = wpa_s->parent;
|
|
|
|
if (!wpa_s->p2p_go_group_formation_completed) {
|
|
wpa_s->global->p2p_group_formation = NULL;
|
|
wpa_s->p2p_in_provisioning = 0;
|
|
}
|
|
|
|
wpa_s->show_group_started = 0;
|
|
os_free(wpa_s->go_params);
|
|
wpa_s->go_params = NULL;
|
|
|
|
os_free(wpa_s->p2p_group_common_freqs);
|
|
wpa_s->p2p_group_common_freqs = NULL;
|
|
wpa_s->p2p_group_common_freqs_num = 0;
|
|
wpa_s->p2p_go_do_acs = 0;
|
|
|
|
wpa_s->waiting_presence_resp = 0;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
|
|
if (ssid && (ssid->p2p_group ||
|
|
ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
|
|
(ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
|
|
int id = ssid->id;
|
|
if (ssid == wpa_s->current_ssid) {
|
|
wpa_sm_set_config(wpa_s->wpa, NULL);
|
|
eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
|
|
wpa_s->current_ssid = NULL;
|
|
}
|
|
/*
|
|
* Networks objects created during any P2P activities are not
|
|
* exposed out as they might/will confuse certain non-P2P aware
|
|
* applications since these network objects won't behave like
|
|
* regular ones.
|
|
*
|
|
* Likewise, we don't send out network removed signals for such
|
|
* network objects.
|
|
*/
|
|
wpa_config_remove_network(wpa_s->conf, id);
|
|
wpa_supplicant_clear_status(wpa_s);
|
|
wpa_supplicant_cancel_sched_scan(wpa_s);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
|
|
"found");
|
|
}
|
|
if (wpa_s->ap_iface)
|
|
wpa_supplicant_ap_deinit(wpa_s);
|
|
else
|
|
wpa_drv_deinit_p2p_cli(wpa_s);
|
|
|
|
os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
|
|
u8 *go_dev_addr,
|
|
const u8 *ssid, size_t ssid_len)
|
|
{
|
|
struct wpa_bss *bss;
|
|
const u8 *bssid;
|
|
struct wpabuf *p2p;
|
|
u8 group_capab;
|
|
const u8 *addr;
|
|
|
|
if (wpa_s->go_params)
|
|
bssid = wpa_s->go_params->peer_interface_addr;
|
|
else
|
|
bssid = wpa_s->bssid;
|
|
|
|
bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
|
|
if (bss == NULL && wpa_s->go_params &&
|
|
!is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
|
|
bss = wpa_bss_get_p2p_dev_addr(
|
|
wpa_s, wpa_s->go_params->peer_device_addr);
|
|
if (bss == NULL) {
|
|
u8 iface_addr[ETH_ALEN];
|
|
if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
|
|
iface_addr) == 0)
|
|
bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
|
|
}
|
|
if (bss == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
|
|
"group is persistent - BSS " MACSTR " not found",
|
|
MAC2STR(bssid));
|
|
return 0;
|
|
}
|
|
|
|
p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
|
|
if (p2p == NULL)
|
|
p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
|
|
P2P_IE_VENDOR_TYPE);
|
|
if (p2p == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
|
|
"group is persistent - BSS " MACSTR
|
|
" did not include P2P IE", MAC2STR(bssid));
|
|
wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
|
|
wpa_bss_ie_ptr(bss), bss->ie_len);
|
|
wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
|
|
wpa_bss_ie_ptr(bss) + bss->ie_len,
|
|
bss->beacon_ie_len);
|
|
return 0;
|
|
}
|
|
|
|
group_capab = p2p_get_group_capab(p2p);
|
|
addr = p2p_get_go_dev_addr(p2p);
|
|
wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
|
|
"group_capab=0x%x", group_capab);
|
|
if (addr) {
|
|
os_memcpy(go_dev_addr, addr, ETH_ALEN);
|
|
wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
|
|
MAC2STR(addr));
|
|
} else
|
|
os_memset(go_dev_addr, 0, ETH_ALEN);
|
|
wpabuf_free(p2p);
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
|
|
"go_dev_addr=" MACSTR,
|
|
MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
|
|
|
|
return !!(group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *ssid,
|
|
const u8 *go_dev_addr)
|
|
{
|
|
struct wpa_ssid *s;
|
|
int changed = 0;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
|
|
"group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
|
|
for (s = wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled == 2 &&
|
|
os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
|
|
s->ssid_len == ssid->ssid_len &&
|
|
os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
|
|
break;
|
|
}
|
|
|
|
if (s) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
|
|
"entry");
|
|
if (ssid->passphrase && !s->passphrase)
|
|
changed = 1;
|
|
else if (ssid->passphrase && s->passphrase &&
|
|
os_strcmp(ssid->passphrase, s->passphrase) != 0)
|
|
changed = 1;
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
|
|
"entry");
|
|
changed = 1;
|
|
s = wpa_config_add_network(wpa_s->conf);
|
|
if (s == NULL)
|
|
return -1;
|
|
|
|
/*
|
|
* Instead of network_added we emit persistent_group_added
|
|
* notification. Also to keep the defense checks in
|
|
* persistent_group obj registration method, we set the
|
|
* relevant flags in s to designate it as a persistent group.
|
|
*/
|
|
s->p2p_group = 1;
|
|
s->p2p_persistent_group = 1;
|
|
wpas_notify_persistent_group_added(wpa_s, s);
|
|
wpa_config_set_network_defaults(s);
|
|
}
|
|
|
|
s->p2p_group = 1;
|
|
s->p2p_persistent_group = 1;
|
|
s->disabled = 2;
|
|
s->bssid_set = 1;
|
|
os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
|
|
s->mode = ssid->mode;
|
|
s->auth_alg = WPA_AUTH_ALG_OPEN;
|
|
s->key_mgmt = WPA_KEY_MGMT_PSK;
|
|
s->proto = WPA_PROTO_RSN;
|
|
s->pbss = ssid->pbss;
|
|
s->pairwise_cipher = ssid->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
|
|
s->export_keys = 1;
|
|
if (ssid->passphrase) {
|
|
os_free(s->passphrase);
|
|
s->passphrase = os_strdup(ssid->passphrase);
|
|
}
|
|
if (ssid->psk_set) {
|
|
s->psk_set = 1;
|
|
os_memcpy(s->psk, ssid->psk, 32);
|
|
}
|
|
if (s->passphrase && !s->psk_set)
|
|
wpa_config_update_psk(s);
|
|
if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
|
|
os_free(s->ssid);
|
|
s->ssid = os_malloc(ssid->ssid_len);
|
|
}
|
|
if (s->ssid) {
|
|
s->ssid_len = ssid->ssid_len;
|
|
os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
|
|
}
|
|
if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
|
|
dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
|
|
wpa_s->global->add_psk = NULL;
|
|
changed = 1;
|
|
}
|
|
|
|
if (changed && wpa_s->conf->update_config &&
|
|
wpa_config_write(wpa_s->confname, wpa_s->conf)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
}
|
|
|
|
return s->id;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
|
|
const u8 *addr)
|
|
{
|
|
struct wpa_ssid *ssid, *s;
|
|
u8 *n;
|
|
size_t i;
|
|
int found = 0;
|
|
struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
|
|
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
|
|
!ssid->p2p_persistent_group)
|
|
return;
|
|
|
|
for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
|
|
continue;
|
|
|
|
if (s->ssid_len == ssid->ssid_len &&
|
|
os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
|
|
break;
|
|
}
|
|
|
|
if (s == NULL)
|
|
return;
|
|
|
|
for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
|
|
if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
|
|
ETH_ALEN) != 0)
|
|
continue;
|
|
|
|
if (i == s->num_p2p_clients - 1)
|
|
return; /* already the most recent entry */
|
|
|
|
/* move the entry to mark it most recent */
|
|
os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
|
|
s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
|
|
(s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
|
|
os_memcpy(s->p2p_client_list +
|
|
(s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
|
|
ETH_ALEN);
|
|
os_memset(s->p2p_client_list +
|
|
(s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
|
|
0xff, ETH_ALEN);
|
|
found = 1;
|
|
break;
|
|
}
|
|
|
|
if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
|
|
n = os_realloc_array(s->p2p_client_list,
|
|
s->num_p2p_clients + 1, 2 * ETH_ALEN);
|
|
if (n == NULL)
|
|
return;
|
|
os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
|
|
ETH_ALEN);
|
|
os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
|
|
0xff, ETH_ALEN);
|
|
s->p2p_client_list = n;
|
|
s->num_p2p_clients++;
|
|
} else if (!found && s->p2p_client_list) {
|
|
/* Not enough room for an additional entry - drop the oldest
|
|
* entry */
|
|
os_memmove(s->p2p_client_list,
|
|
s->p2p_client_list + 2 * ETH_ALEN,
|
|
(s->num_p2p_clients - 1) * 2 * ETH_ALEN);
|
|
os_memcpy(s->p2p_client_list +
|
|
(s->num_p2p_clients - 1) * 2 * ETH_ALEN,
|
|
addr, ETH_ALEN);
|
|
os_memset(s->p2p_client_list +
|
|
(s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
|
|
0xff, ETH_ALEN);
|
|
}
|
|
|
|
if (p2p_wpa_s->conf->update_config &&
|
|
wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
}
|
|
|
|
|
|
static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
|
|
int go, struct wpa_ssid *ssid, int freq,
|
|
const u8 *psk, const char *passphrase,
|
|
const u8 *go_dev_addr, int persistent,
|
|
const char *extra)
|
|
{
|
|
const char *ssid_txt;
|
|
char psk_txt[65];
|
|
|
|
if (psk)
|
|
wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
|
|
else
|
|
psk_txt[0] = '\0';
|
|
|
|
if (ssid)
|
|
ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
|
|
else
|
|
ssid_txt = "";
|
|
|
|
if (passphrase && passphrase[0] == '\0')
|
|
passphrase = NULL;
|
|
|
|
/*
|
|
* Include PSK/passphrase only in the control interface message and
|
|
* leave it out from the debug log entry.
|
|
*/
|
|
wpa_msg_global_ctrl(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_GROUP_STARTED
|
|
"%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
|
|
MACSTR "%s%s",
|
|
wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
|
|
psk ? " psk=" : "", psk_txt,
|
|
passphrase ? " passphrase=\"" : "",
|
|
passphrase ? passphrase : "",
|
|
passphrase ? "\"" : "",
|
|
MAC2STR(go_dev_addr),
|
|
persistent ? " [PERSISTENT]" : "", extra);
|
|
wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
|
|
"%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
|
|
wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
|
|
MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
|
|
extra);
|
|
}
|
|
|
|
|
|
static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
|
|
int success, int already_deleted)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
int client;
|
|
int persistent;
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
|
|
/*
|
|
* This callback is likely called for the main interface. Update wpa_s
|
|
* to use the group interface if a new interface was created for the
|
|
* group.
|
|
*/
|
|
if (wpa_s->global->p2p_group_formation)
|
|
wpa_s = wpa_s->global->p2p_group_formation;
|
|
if (wpa_s->p2p_go_group_formation_completed) {
|
|
wpa_s->global->p2p_group_formation = NULL;
|
|
wpa_s->p2p_in_provisioning = 0;
|
|
} else if (wpa_s->p2p_in_provisioning && !success) {
|
|
wpa_msg(wpa_s, MSG_DEBUG,
|
|
"P2P: Stop provisioning state due to failure");
|
|
wpa_s->p2p_in_provisioning = 0;
|
|
}
|
|
wpa_s->p2p_in_invitation = 0;
|
|
wpa_s->group_formation_reported = 1;
|
|
|
|
if (!success) {
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_GROUP_FORMATION_FAILURE);
|
|
wpas_notify_p2p_group_formation_failure(wpa_s, "");
|
|
if (already_deleted)
|
|
return;
|
|
wpas_p2p_group_delete(wpa_s,
|
|
P2P_GROUP_REMOVAL_FORMATION_FAILED);
|
|
return;
|
|
}
|
|
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_GROUP_FORMATION_SUCCESS);
|
|
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
|
|
ssid->mode = WPAS_MODE_P2P_GO;
|
|
p2p_group_notif_formation_done(wpa_s->p2p_group);
|
|
wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
|
|
}
|
|
|
|
persistent = 0;
|
|
if (ssid) {
|
|
client = ssid->mode == WPAS_MODE_INFRA;
|
|
if (ssid->mode == WPAS_MODE_P2P_GO) {
|
|
persistent = ssid->p2p_persistent_group;
|
|
os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
|
|
ETH_ALEN);
|
|
} else
|
|
persistent = wpas_p2p_persistent_group(wpa_s,
|
|
go_dev_addr,
|
|
ssid->ssid,
|
|
ssid->ssid_len);
|
|
} else {
|
|
client = wpa_s->p2p_group_interface ==
|
|
P2P_GROUP_INTERFACE_CLIENT;
|
|
os_memset(go_dev_addr, 0, ETH_ALEN);
|
|
}
|
|
|
|
wpa_s->show_group_started = 0;
|
|
if (client) {
|
|
/*
|
|
* Indicate event only after successfully completed 4-way
|
|
* handshake, i.e., when the interface is ready for data
|
|
* packets.
|
|
*/
|
|
wpa_s->show_group_started = 1;
|
|
} else {
|
|
wpas_p2p_group_started(wpa_s, 1, ssid,
|
|
ssid ? ssid->frequency : 0,
|
|
ssid && ssid->passphrase == NULL &&
|
|
ssid->psk_set ? ssid->psk : NULL,
|
|
ssid ? ssid->passphrase : NULL,
|
|
go_dev_addr, persistent, "");
|
|
wpas_p2p_cross_connect_setup(wpa_s);
|
|
wpas_p2p_set_group_idle_timeout(wpa_s);
|
|
}
|
|
|
|
if (persistent)
|
|
wpas_p2p_store_persistent_group(wpa_s->p2pdev,
|
|
ssid, go_dev_addr);
|
|
else {
|
|
os_free(wpa_s->global->add_psk);
|
|
wpa_s->global->add_psk = NULL;
|
|
}
|
|
|
|
if (!client) {
|
|
wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 0, NULL);
|
|
os_get_reltime(&wpa_s->global->p2p_go_wait_client);
|
|
}
|
|
}
|
|
|
|
|
|
struct send_action_work {
|
|
unsigned int freq;
|
|
u8 dst[ETH_ALEN];
|
|
u8 src[ETH_ALEN];
|
|
u8 bssid[ETH_ALEN];
|
|
size_t len;
|
|
unsigned int wait_time;
|
|
u8 buf[0];
|
|
};
|
|
|
|
|
|
static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Free Action frame radio work @%p (freq=%u dst="
|
|
MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
|
|
wpa_s->p2p_send_action_work, awork->freq,
|
|
MAC2STR(awork->dst), MAC2STR(awork->src),
|
|
MAC2STR(awork->bssid), awork->wait_time);
|
|
wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
|
|
awork->buf, awork->len);
|
|
os_free(awork);
|
|
wpa_s->p2p_send_action_work->ctx = NULL;
|
|
radio_work_done(wpa_s->p2p_send_action_work);
|
|
wpa_s->p2p_send_action_work = NULL;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
|
|
void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
|
|
if (!wpa_s->p2p_send_action_work)
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
|
|
wpas_p2p_free_send_action_work(wpa_s);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->p2p_send_action_work) {
|
|
struct send_action_work *awork;
|
|
|
|
awork = wpa_s->p2p_send_action_work->ctx;
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Clear Action TX work @%p (wait_time=%u)",
|
|
wpa_s->p2p_send_action_work, awork->wait_time);
|
|
if (awork->wait_time == 0) {
|
|
wpas_p2p_free_send_action_work(wpa_s);
|
|
} else {
|
|
/*
|
|
* In theory, this should not be needed, but number of
|
|
* places in the P2P code is still using non-zero wait
|
|
* time for the last Action frame in the sequence and
|
|
* some of these do not call send_action_done().
|
|
*/
|
|
eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
|
|
wpa_s, NULL);
|
|
eloop_register_timeout(
|
|
0, awork->wait_time * 1000,
|
|
wpas_p2p_send_action_work_timeout,
|
|
wpa_s, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq,
|
|
const u8 *dst, const u8 *src,
|
|
const u8 *bssid,
|
|
const u8 *data, size_t data_len,
|
|
enum offchannel_send_action_result
|
|
result)
|
|
{
|
|
enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
|
|
|
|
wpas_p2p_action_tx_clear(wpa_s);
|
|
|
|
if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
|
|
return;
|
|
|
|
switch (result) {
|
|
case OFFCHANNEL_SEND_ACTION_SUCCESS:
|
|
res = P2P_SEND_ACTION_SUCCESS;
|
|
break;
|
|
case OFFCHANNEL_SEND_ACTION_NO_ACK:
|
|
res = P2P_SEND_ACTION_NO_ACK;
|
|
break;
|
|
case OFFCHANNEL_SEND_ACTION_FAILED:
|
|
res = P2P_SEND_ACTION_FAILED;
|
|
break;
|
|
}
|
|
|
|
p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
|
|
|
|
if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
|
|
wpa_s->pending_pd_before_join &&
|
|
(os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
|
|
os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
|
|
wpa_s->p2p_fallback_to_go_neg) {
|
|
wpa_s->pending_pd_before_join = 0;
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
|
|
"during p2p_connect-auto");
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_FALLBACK_TO_GO_NEG
|
|
"reason=no-ACK-to-PD-Req");
|
|
wpas_p2p_fallback_to_go_neg(wpa_s, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
|
|
{
|
|
struct wpa_supplicant *wpa_s = work->wpa_s;
|
|
struct send_action_work *awork = work->ctx;
|
|
|
|
if (deinit) {
|
|
if (work->started) {
|
|
eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
|
|
wpa_s, NULL);
|
|
wpa_s->p2p_send_action_work = NULL;
|
|
offchannel_send_action_done(wpa_s);
|
|
}
|
|
os_free(awork);
|
|
return;
|
|
}
|
|
|
|
if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
|
|
awork->bssid, awork->buf, awork->len,
|
|
awork->wait_time,
|
|
wpas_p2p_send_action_tx_status, 1) < 0) {
|
|
os_free(awork);
|
|
radio_work_done(work);
|
|
return;
|
|
}
|
|
wpa_s->p2p_send_action_work = work;
|
|
}
|
|
|
|
|
|
static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq, const u8 *dst,
|
|
const u8 *src, const u8 *bssid, const u8 *buf,
|
|
size_t len, unsigned int wait_time)
|
|
{
|
|
struct send_action_work *awork;
|
|
|
|
if (radio_work_pending(wpa_s, "p2p-send-action")) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
|
|
return -1;
|
|
}
|
|
|
|
awork = os_zalloc(sizeof(*awork) + len);
|
|
if (awork == NULL)
|
|
return -1;
|
|
|
|
awork->freq = freq;
|
|
os_memcpy(awork->dst, dst, ETH_ALEN);
|
|
os_memcpy(awork->src, src, ETH_ALEN);
|
|
os_memcpy(awork->bssid, bssid, ETH_ALEN);
|
|
awork->len = len;
|
|
awork->wait_time = wait_time;
|
|
os_memcpy(awork->buf, buf, len);
|
|
|
|
if (radio_add_work(wpa_s, freq, "p2p-send-action", 1,
|
|
wpas_send_action_cb, awork) < 0) {
|
|
os_free(awork);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
|
|
const u8 *src, const u8 *bssid, const u8 *buf,
|
|
size_t len, unsigned int wait_time, int *scheduled)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
int listen_freq = -1, send_freq = -1;
|
|
|
|
if (scheduled)
|
|
*scheduled = 0;
|
|
if (wpa_s->p2p_listen_work)
|
|
listen_freq = wpa_s->p2p_listen_work->freq;
|
|
if (wpa_s->p2p_send_action_work)
|
|
send_freq = wpa_s->p2p_send_action_work->freq;
|
|
if (listen_freq != (int) freq && send_freq != (int) freq) {
|
|
int res;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d freq=%u)",
|
|
listen_freq, send_freq, freq);
|
|
res = wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
|
|
len, wait_time);
|
|
if (res == 0 && scheduled)
|
|
*scheduled = 1;
|
|
return res;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
|
|
return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
|
|
wait_time,
|
|
wpas_p2p_send_action_tx_status, 1);
|
|
}
|
|
|
|
|
|
static void wpas_send_action_done(void *ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
if (wpa_s->p2p_send_action_work) {
|
|
eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
|
|
wpa_s, NULL);
|
|
os_free(wpa_s->p2p_send_action_work->ctx);
|
|
radio_work_done(wpa_s->p2p_send_action_work);
|
|
wpa_s->p2p_send_action_work = NULL;
|
|
}
|
|
|
|
offchannel_send_action_done(wpa_s);
|
|
}
|
|
|
|
|
|
static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *params)
|
|
{
|
|
if (wpa_s->go_params == NULL) {
|
|
wpa_s->go_params = os_malloc(sizeof(*params));
|
|
if (wpa_s->go_params == NULL)
|
|
return -1;
|
|
}
|
|
os_memcpy(wpa_s->go_params, params, sizeof(*params));
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *res)
|
|
{
|
|
wpa_s->group_formation_reported = 0;
|
|
wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
|
|
" dev_addr " MACSTR " wps_method %d",
|
|
MAC2STR(res->peer_interface_addr),
|
|
MAC2STR(res->peer_device_addr), res->wps_method);
|
|
wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
|
|
res->ssid, res->ssid_len);
|
|
wpa_supplicant_ap_deinit(wpa_s);
|
|
wpas_copy_go_neg_results(wpa_s, res);
|
|
if (res->wps_method == WPS_PBC) {
|
|
wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1, 0);
|
|
#ifdef CONFIG_WPS_NFC
|
|
} else if (res->wps_method == WPS_NFC) {
|
|
wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
|
|
res->peer_interface_addr,
|
|
wpa_s->p2pdev->p2p_oob_dev_pw,
|
|
wpa_s->p2pdev->p2p_oob_dev_pw_id, 1,
|
|
wpa_s->p2pdev->p2p_oob_dev_pw_id ==
|
|
DEV_PW_NFC_CONNECTION_HANDOVER ?
|
|
wpa_s->p2pdev->p2p_peer_oob_pubkey_hash :
|
|
NULL,
|
|
NULL, 0, 0);
|
|
#endif /* CONFIG_WPS_NFC */
|
|
} else {
|
|
u16 dev_pw_id = DEV_PW_DEFAULT;
|
|
if (wpa_s->p2p_wps_method == WPS_P2PS)
|
|
dev_pw_id = DEV_PW_P2PS_DEFAULT;
|
|
if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
|
|
dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
|
|
wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
|
|
wpa_s->p2p_pin, 1, dev_pw_id);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *ssid)
|
|
{
|
|
struct wpa_ssid *persistent;
|
|
struct psk_list_entry *psk;
|
|
struct hostapd_data *hapd;
|
|
|
|
if (!wpa_s->ap_iface)
|
|
return;
|
|
|
|
persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
|
|
ssid->ssid_len);
|
|
if (persistent == NULL)
|
|
return;
|
|
|
|
hapd = wpa_s->ap_iface->bss[0];
|
|
|
|
dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
|
|
list) {
|
|
struct hostapd_wpa_psk *hpsk;
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
|
|
MACSTR " psk=%d",
|
|
MAC2STR(psk->addr), psk->p2p);
|
|
hpsk = os_zalloc(sizeof(*hpsk));
|
|
if (hpsk == NULL)
|
|
break;
|
|
os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
|
|
if (psk->p2p)
|
|
os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
|
|
else
|
|
os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
|
|
hpsk->next = hapd->conf->ssid.wpa_psk;
|
|
hapd->conf->ssid.wpa_psk = hpsk;
|
|
}
|
|
}
|
|
|
|
|
|
static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
|
|
{
|
|
char buf[20 + P2P_MAX_CHANNELS * 6];
|
|
char *pos, *end;
|
|
unsigned int i;
|
|
int res;
|
|
|
|
pos = buf;
|
|
end = pos + sizeof(buf);
|
|
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
|
|
res = os_snprintf(pos, end - pos, " %d",
|
|
wpa_s->p2p_group_common_freqs[i]);
|
|
if (os_snprintf_error(end - pos, res))
|
|
break;
|
|
pos += res;
|
|
}
|
|
*pos = '\0';
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies:%s", buf);
|
|
}
|
|
|
|
|
|
static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *params)
|
|
{
|
|
unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
|
|
|
|
wpa_s->p2p_group_common_freqs_num = 0;
|
|
os_free(wpa_s->p2p_group_common_freqs);
|
|
wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
|
|
if (!wpa_s->p2p_group_common_freqs)
|
|
return;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
if (!wpa_s->go_params->freq_list[i])
|
|
break;
|
|
wpa_s->p2p_group_common_freqs[i] =
|
|
wpa_s->go_params->freq_list[i];
|
|
}
|
|
wpa_s->p2p_group_common_freqs_num = i;
|
|
}
|
|
|
|
|
|
static void p2p_config_write(struct wpa_supplicant *wpa_s)
|
|
{
|
|
#ifndef CONFIG_NO_CONFIG_WRITE
|
|
if (wpa_s->p2pdev->conf->update_config &&
|
|
wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
#endif /* CONFIG_NO_CONFIG_WRITE */
|
|
}
|
|
|
|
|
|
static void p2p_go_configured(void *ctx, void *data)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct p2p_go_neg_results *params = data;
|
|
struct wpa_ssid *ssid;
|
|
|
|
wpa_s->ap_configured_cb = NULL;
|
|
wpa_s->ap_configured_cb_ctx = NULL;
|
|
wpa_s->ap_configured_cb_data = NULL;
|
|
if (!wpa_s->go_params) {
|
|
wpa_printf(MSG_ERROR,
|
|
"P2P: p2p_go_configured() called with wpa_s->go_params == NULL");
|
|
return;
|
|
}
|
|
|
|
p2p_go_save_group_common_freqs(wpa_s, params);
|
|
p2p_go_dump_common_freqs(wpa_s);
|
|
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
|
|
if (wpa_s->global->p2p_group_formation == wpa_s)
|
|
wpa_s->global->p2p_group_formation = NULL;
|
|
wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
|
|
params->passphrase[0] == '\0' ?
|
|
params->psk : NULL,
|
|
params->passphrase,
|
|
wpa_s->global->p2p_dev_addr,
|
|
params->persistent_group, "");
|
|
wpa_s->group_formation_reported = 1;
|
|
|
|
if (wpa_s->p2pdev->p2ps_method_config_any) {
|
|
if (is_zero_ether_addr(wpa_s->p2pdev->p2ps_join_addr)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2PS: Setting default PIN for ANY");
|
|
wpa_supplicant_ap_wps_pin(wpa_s, NULL,
|
|
"12345670", NULL, 0,
|
|
0);
|
|
} else {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2PS: Setting default PIN for " MACSTR,
|
|
MAC2STR(wpa_s->p2pdev->p2ps_join_addr));
|
|
wpa_supplicant_ap_wps_pin(
|
|
wpa_s, wpa_s->p2pdev->p2ps_join_addr,
|
|
"12345670", NULL, 0, 0);
|
|
}
|
|
wpa_s->p2pdev->p2ps_method_config_any = 0;
|
|
}
|
|
|
|
os_get_reltime(&wpa_s->global->p2p_go_wait_client);
|
|
if (params->persistent_group) {
|
|
wpas_p2p_store_persistent_group(
|
|
wpa_s->p2pdev, ssid,
|
|
wpa_s->global->p2p_dev_addr);
|
|
wpas_p2p_add_psk_list(wpa_s, ssid);
|
|
}
|
|
|
|
wpas_notify_p2p_group_started(wpa_s, ssid,
|
|
params->persistent_group, 0,
|
|
NULL);
|
|
wpas_p2p_cross_connect_setup(wpa_s);
|
|
wpas_p2p_set_group_idle_timeout(wpa_s);
|
|
|
|
if (wpa_s->p2p_first_connection_timeout) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Start group formation timeout of %d seconds until first data connection on GO",
|
|
wpa_s->p2p_first_connection_timeout);
|
|
wpa_s->p2p_go_group_formation_completed = 0;
|
|
wpa_s->global->p2p_group_formation = wpa_s;
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
eloop_register_timeout(
|
|
wpa_s->p2p_first_connection_timeout, 0,
|
|
wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
|
|
if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
|
|
params->peer_interface_addr)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
|
|
"filtering");
|
|
return;
|
|
}
|
|
if (params->wps_method == WPS_PBC) {
|
|
wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
|
|
params->peer_device_addr);
|
|
#ifdef CONFIG_WPS_NFC
|
|
} else if (params->wps_method == WPS_NFC) {
|
|
if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
|
|
DEV_PW_NFC_CONNECTION_HANDOVER &&
|
|
!wpa_s->p2pdev->p2p_oob_dev_pw) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
|
|
return;
|
|
}
|
|
wpas_ap_wps_add_nfc_pw(
|
|
wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
|
|
wpa_s->p2pdev->p2p_oob_dev_pw,
|
|
wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
|
|
wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
|
|
#endif /* CONFIG_WPS_NFC */
|
|
} else if (wpa_s->p2p_pin[0])
|
|
wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
|
|
wpa_s->p2p_pin, NULL, 0, 0);
|
|
os_free(wpa_s->go_params);
|
|
wpa_s->go_params = NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_freq_to_edmg_channel - Convert frequency into EDMG channel
|
|
* @freq: Frequency (MHz) to convert
|
|
* @op_class: Buffer for returning operating class
|
|
* @op_edmg_channel: Buffer for returning channel number
|
|
* Returns: 0 on success, -1 on failure
|
|
*
|
|
* This can be used to find the highest channel bonding which includes the
|
|
* specified frequency.
|
|
*/
|
|
static int wpas_p2p_freq_to_edmg_channel(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq,
|
|
u8 *op_class, u8 *op_edmg_channel)
|
|
{
|
|
struct hostapd_hw_modes *hwmode;
|
|
struct ieee80211_edmg_config edmg;
|
|
unsigned int i;
|
|
enum chan_width chanwidth[] = {
|
|
CHAN_WIDTH_8640,
|
|
CHAN_WIDTH_6480,
|
|
CHAN_WIDTH_4320,
|
|
};
|
|
|
|
if (!wpa_s->hw.modes)
|
|
return -1;
|
|
|
|
hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
|
|
HOSTAPD_MODE_IEEE80211AD, 0);
|
|
if (!hwmode) {
|
|
wpa_printf(MSG_ERROR,
|
|
"Unsupported AP mode: HOSTAPD_MODE_IEEE80211AD");
|
|
return -1;
|
|
}
|
|
|
|
/* Find the highest EDMG channel bandwidth to start the P2P GO */
|
|
for (i = 0; i < ARRAY_SIZE(chanwidth); i++) {
|
|
if (ieee80211_chaninfo_to_channel(freq, chanwidth[i], 0,
|
|
op_class,
|
|
op_edmg_channel) < 0)
|
|
continue;
|
|
|
|
hostapd_encode_edmg_chan(1, *op_edmg_channel, 0, &edmg);
|
|
if (edmg.channels &&
|
|
ieee802_edmg_is_allowed(hwmode->edmg, edmg)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Freq %u to EDMG channel %u at opclass %u",
|
|
freq, *op_edmg_channel, *op_class);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
int wpas_p2p_try_edmg_channel(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *params)
|
|
{
|
|
u8 op_channel, op_class;
|
|
int freq;
|
|
|
|
/* Try social channel as primary channel frequency */
|
|
freq = (!params->freq) ? 58320 + 1 * 2160 : params->freq;
|
|
|
|
if (wpas_p2p_freq_to_edmg_channel(wpa_s, freq, &op_class,
|
|
&op_channel) == 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Freq %d will be used to set an EDMG connection (channel=%u opclass=%u)",
|
|
freq, op_channel, op_class);
|
|
params->freq = freq;
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *params,
|
|
int group_formation)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
|
|
if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
|
|
"results");
|
|
return;
|
|
}
|
|
|
|
ssid = wpa_config_add_network(wpa_s->conf);
|
|
if (ssid == NULL) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
|
|
return;
|
|
}
|
|
|
|
wpa_s->show_group_started = 0;
|
|
wpa_s->p2p_go_group_formation_completed = 0;
|
|
wpa_s->group_formation_reported = 0;
|
|
os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
|
|
|
|
wpa_config_set_network_defaults(ssid);
|
|
ssid->temporary = 1;
|
|
ssid->p2p_group = 1;
|
|
ssid->p2p_persistent_group = !!params->persistent_group;
|
|
ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
|
|
WPAS_MODE_P2P_GO;
|
|
ssid->frequency = params->freq;
|
|
ssid->ht40 = params->ht40;
|
|
ssid->vht = params->vht;
|
|
ssid->max_oper_chwidth = params->max_oper_chwidth;
|
|
ssid->vht_center_freq2 = params->vht_center_freq2;
|
|
ssid->he = params->he;
|
|
if (params->edmg) {
|
|
u8 op_channel, op_class;
|
|
|
|
if (!wpas_p2p_freq_to_edmg_channel(wpa_s, params->freq,
|
|
&op_class, &op_channel)) {
|
|
ssid->edmg_channel = op_channel;
|
|
ssid->enable_edmg = params->edmg;
|
|
} else {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Could not match EDMG channel, freq %d, for GO",
|
|
params->freq);
|
|
}
|
|
}
|
|
|
|
ssid->ssid = os_zalloc(params->ssid_len + 1);
|
|
if (ssid->ssid) {
|
|
os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
|
|
ssid->ssid_len = params->ssid_len;
|
|
}
|
|
ssid->auth_alg = WPA_AUTH_ALG_OPEN;
|
|
ssid->key_mgmt = WPA_KEY_MGMT_PSK;
|
|
ssid->proto = WPA_PROTO_RSN;
|
|
ssid->pairwise_cipher = WPA_CIPHER_CCMP;
|
|
ssid->group_cipher = WPA_CIPHER_CCMP;
|
|
if (params->freq > 56160) {
|
|
/*
|
|
* Enable GCMP instead of CCMP as pairwise_cipher and
|
|
* group_cipher in 60 GHz.
|
|
*/
|
|
ssid->pairwise_cipher = WPA_CIPHER_GCMP;
|
|
ssid->group_cipher = WPA_CIPHER_GCMP;
|
|
/* P2P GO in 60 GHz is always a PCP (PBSS) */
|
|
ssid->pbss = 1;
|
|
}
|
|
if (os_strlen(params->passphrase) > 0) {
|
|
ssid->passphrase = os_strdup(params->passphrase);
|
|
if (ssid->passphrase == NULL) {
|
|
wpa_msg_global(wpa_s, MSG_ERROR,
|
|
"P2P: Failed to copy passphrase for GO");
|
|
wpa_config_remove_network(wpa_s->conf, ssid->id);
|
|
return;
|
|
}
|
|
} else
|
|
ssid->passphrase = NULL;
|
|
ssid->psk_set = params->psk_set;
|
|
if (ssid->psk_set)
|
|
os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
|
|
else if (ssid->passphrase)
|
|
wpa_config_update_psk(ssid);
|
|
ssid->ap_max_inactivity = wpa_s->p2pdev->conf->p2p_go_max_inactivity;
|
|
|
|
wpa_s->ap_configured_cb = p2p_go_configured;
|
|
wpa_s->ap_configured_cb_ctx = wpa_s;
|
|
wpa_s->ap_configured_cb_data = wpa_s->go_params;
|
|
wpa_s->scan_req = NORMAL_SCAN_REQ;
|
|
wpa_s->connect_without_scan = ssid;
|
|
wpa_s->reassociate = 1;
|
|
wpa_s->disconnected = 0;
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
|
|
"start GO)");
|
|
wpa_supplicant_req_scan(wpa_s, 0, 0);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
|
|
const struct wpa_supplicant *src)
|
|
{
|
|
struct wpa_config *d;
|
|
const struct wpa_config *s;
|
|
|
|
d = dst->conf;
|
|
s = src->conf;
|
|
|
|
#define C(n) \
|
|
do { \
|
|
if (s->n && !d->n) \
|
|
d->n = os_strdup(s->n); \
|
|
} while (0)
|
|
|
|
C(device_name);
|
|
C(manufacturer);
|
|
C(model_name);
|
|
C(model_number);
|
|
C(serial_number);
|
|
C(config_methods);
|
|
#undef C
|
|
|
|
os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
|
|
os_memcpy(d->sec_device_type, s->sec_device_type,
|
|
sizeof(d->sec_device_type));
|
|
d->num_sec_device_types = s->num_sec_device_types;
|
|
|
|
d->p2p_group_idle = s->p2p_group_idle;
|
|
d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
|
|
d->p2p_intra_bss = s->p2p_intra_bss;
|
|
d->persistent_reconnect = s->persistent_reconnect;
|
|
d->max_num_sta = s->max_num_sta;
|
|
d->pbc_in_m1 = s->pbc_in_m1;
|
|
d->ignore_old_scan_res = s->ignore_old_scan_res;
|
|
d->beacon_int = s->beacon_int;
|
|
d->dtim_period = s->dtim_period;
|
|
d->p2p_go_ctwindow = s->p2p_go_ctwindow;
|
|
d->disassoc_low_ack = s->disassoc_low_ack;
|
|
d->disable_scan_offload = s->disable_scan_offload;
|
|
d->passive_scan = s->passive_scan;
|
|
|
|
if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey &&
|
|
!d->wps_nfc_pw_from_config) {
|
|
wpabuf_free(d->wps_nfc_dh_privkey);
|
|
wpabuf_free(d->wps_nfc_dh_pubkey);
|
|
d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
|
|
d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
|
|
}
|
|
d->p2p_cli_probe = s->p2p_cli_probe;
|
|
d->go_interworking = s->go_interworking;
|
|
d->go_access_network_type = s->go_access_network_type;
|
|
d->go_internet = s->go_internet;
|
|
d->go_venue_group = s->go_venue_group;
|
|
d->go_venue_type = s->go_venue_type;
|
|
d->p2p_add_cli_chan = s->p2p_add_cli_chan;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
|
|
char *ifname, size_t len)
|
|
{
|
|
char *ifname_ptr = wpa_s->ifname;
|
|
|
|
if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
|
|
os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
|
|
ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
|
|
}
|
|
|
|
os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
|
|
if (os_strlen(ifname) >= IFNAMSIZ &&
|
|
os_strlen(wpa_s->ifname) < IFNAMSIZ) {
|
|
int res;
|
|
|
|
/* Try to avoid going over the IFNAMSIZ length limit */
|
|
res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
|
|
if (os_snprintf_error(len, res) && len)
|
|
ifname[len - 1] = '\0';
|
|
}
|
|
}
|
|
|
|
|
|
static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
|
|
enum wpa_driver_if_type type)
|
|
{
|
|
char ifname[120], force_ifname[120];
|
|
|
|
if (wpa_s->pending_interface_name[0]) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
|
|
"- skip creation of a new one");
|
|
if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
|
|
"unknown?! ifname='%s'",
|
|
wpa_s->pending_interface_name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
|
|
force_ifname[0] = '\0';
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
|
|
ifname);
|
|
wpa_s->p2p_group_idx++;
|
|
|
|
wpa_s->pending_interface_type = type;
|
|
if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
|
|
wpa_s->pending_interface_addr, NULL) < 0) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
|
|
"interface");
|
|
return -1;
|
|
}
|
|
|
|
if (wpa_s->conf->p2p_interface_random_mac_addr) {
|
|
random_mac_addr(wpa_s->pending_interface_addr);
|
|
wpa_printf(MSG_DEBUG, "P2P: Generate random MAC address " MACSTR
|
|
" for the group",
|
|
MAC2STR(wpa_s->pending_interface_addr));
|
|
}
|
|
|
|
if (force_ifname[0]) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
|
|
force_ifname);
|
|
os_strlcpy(wpa_s->pending_interface_name, force_ifname,
|
|
sizeof(wpa_s->pending_interface_name));
|
|
} else
|
|
os_strlcpy(wpa_s->pending_interface_name, ifname,
|
|
sizeof(wpa_s->pending_interface_name));
|
|
wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
|
|
MACSTR, wpa_s->pending_interface_name,
|
|
MAC2STR(wpa_s->pending_interface_addr));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_remove_pending_group_interface(
|
|
struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (!wpa_s->pending_interface_name[0] ||
|
|
is_zero_ether_addr(wpa_s->pending_interface_addr))
|
|
return; /* No pending virtual interface */
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
|
|
wpa_s->pending_interface_name);
|
|
wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
|
|
wpa_s->pending_interface_name);
|
|
os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
|
|
wpa_s->pending_interface_name[0] = '\0';
|
|
wpa_s->global->pending_group_iface_for_p2ps = 0;
|
|
}
|
|
|
|
|
|
static struct wpa_supplicant *
|
|
wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
|
|
{
|
|
struct wpa_interface iface;
|
|
struct wpa_supplicant *group_wpa_s;
|
|
|
|
if (!wpa_s->pending_interface_name[0]) {
|
|
wpa_printf(MSG_ERROR, "P2P: No pending group interface");
|
|
if (!wpas_p2p_create_iface(wpa_s))
|
|
return NULL;
|
|
/*
|
|
* Something has forced us to remove the pending interface; try
|
|
* to create a new one and hope for the best that we will get
|
|
* the same local address.
|
|
*/
|
|
if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
|
|
WPA_IF_P2P_CLIENT) < 0)
|
|
return NULL;
|
|
}
|
|
|
|
os_memset(&iface, 0, sizeof(iface));
|
|
iface.ifname = wpa_s->pending_interface_name;
|
|
iface.driver = wpa_s->driver->name;
|
|
if (wpa_s->conf->ctrl_interface == NULL &&
|
|
wpa_s->parent != wpa_s &&
|
|
wpa_s->p2p_mgmt &&
|
|
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
|
|
iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
|
|
else
|
|
iface.ctrl_interface = wpa_s->conf->ctrl_interface;
|
|
iface.driver_param = wpa_s->conf->driver_param;
|
|
group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
|
|
if (group_wpa_s == NULL) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to create new "
|
|
"wpa_supplicant interface");
|
|
return NULL;
|
|
}
|
|
wpa_s->pending_interface_name[0] = '\0';
|
|
group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
|
|
P2P_GROUP_INTERFACE_CLIENT;
|
|
wpa_s->global->p2p_group_formation = group_wpa_s;
|
|
wpa_s->global->pending_group_iface_for_p2ps = 0;
|
|
|
|
wpas_p2p_clone_config(group_wpa_s, wpa_s);
|
|
|
|
if (wpa_s->conf->p2p_interface_random_mac_addr) {
|
|
if (wpa_drv_set_mac_addr(group_wpa_s,
|
|
wpa_s->pending_interface_addr) < 0) {
|
|
wpa_msg(group_wpa_s, MSG_INFO,
|
|
"Failed to set random MAC address");
|
|
wpa_supplicant_remove_iface(wpa_s->global, group_wpa_s,
|
|
0);
|
|
return NULL;
|
|
}
|
|
|
|
if (wpa_supplicant_update_mac_addr(group_wpa_s) < 0) {
|
|
wpa_msg(group_wpa_s, MSG_INFO,
|
|
"Could not update MAC address information");
|
|
wpa_supplicant_remove_iface(wpa_s->global, group_wpa_s,
|
|
0);
|
|
return NULL;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Using random MAC address " MACSTR
|
|
" for the group",
|
|
MAC2STR(wpa_s->pending_interface_addr));
|
|
}
|
|
|
|
return group_wpa_s;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
|
|
void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
|
|
wpas_p2p_group_formation_failed(wpa_s, 0);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
|
|
int already_deleted)
|
|
{
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
if (wpa_s->global->p2p)
|
|
p2p_group_formation_failed(wpa_s->global->p2p);
|
|
wpas_group_formation_completed(wpa_s, 0, already_deleted);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
wpa_s->global->p2p_fail_on_wps_complete = 0;
|
|
}
|
|
|
|
|
|
void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->global->p2p_group_formation != wpa_s)
|
|
return;
|
|
/* Speed up group formation timeout since this cannot succeed */
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
}
|
|
|
|
|
|
static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_supplicant *group_wpa_s;
|
|
|
|
if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
|
|
wpa_drv_cancel_remain_on_channel(wpa_s);
|
|
wpa_s->off_channel_freq = 0;
|
|
wpa_s->roc_waiting_drv_freq = 0;
|
|
}
|
|
|
|
if (res->status) {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_GO_NEG_FAILURE "status=%d",
|
|
res->status);
|
|
wpas_notify_p2p_go_neg_completed(wpa_s, res);
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
return;
|
|
}
|
|
|
|
if (!res->role_go) {
|
|
/* Inform driver of the operating channel of GO. */
|
|
wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
|
|
}
|
|
|
|
if (wpa_s->p2p_go_ht40)
|
|
res->ht40 = 1;
|
|
if (wpa_s->p2p_go_vht)
|
|
res->vht = 1;
|
|
if (wpa_s->p2p_go_he)
|
|
res->he = 1;
|
|
if (wpa_s->p2p_go_edmg)
|
|
res->edmg = 1;
|
|
res->max_oper_chwidth = wpa_s->p2p_go_max_oper_chwidth;
|
|
res->vht_center_freq2 = wpa_s->p2p_go_vht_center_freq2;
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
|
|
"freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
|
|
" wps_method=%s",
|
|
res->role_go ? "GO" : "client", res->freq, res->ht40,
|
|
MAC2STR(res->peer_device_addr),
|
|
MAC2STR(res->peer_interface_addr),
|
|
p2p_wps_method_text(res->wps_method));
|
|
wpas_notify_p2p_go_neg_completed(wpa_s, res);
|
|
|
|
if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
|
|
struct wpa_ssid *ssid;
|
|
ssid = wpa_config_get_network(wpa_s->conf,
|
|
wpa_s->p2p_persistent_id);
|
|
if (ssid && ssid->disabled == 2 &&
|
|
ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
|
|
size_t len = os_strlen(ssid->passphrase);
|
|
wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
|
|
"on requested persistent group");
|
|
os_memcpy(res->passphrase, ssid->passphrase, len);
|
|
res->passphrase[len] = '\0';
|
|
}
|
|
}
|
|
|
|
if (wpa_s->create_p2p_iface) {
|
|
group_wpa_s =
|
|
wpas_p2p_init_group_interface(wpa_s, res->role_go);
|
|
if (group_wpa_s == NULL) {
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
|
|
wpa_s, NULL);
|
|
wpas_p2p_group_formation_failed(wpa_s, 1);
|
|
return;
|
|
}
|
|
os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
|
|
wpa_s->pending_interface_name[0] = '\0';
|
|
} else {
|
|
group_wpa_s = wpa_s->parent;
|
|
wpa_s->global->p2p_group_formation = group_wpa_s;
|
|
if (group_wpa_s != wpa_s)
|
|
wpas_p2p_clone_config(group_wpa_s, wpa_s);
|
|
}
|
|
|
|
group_wpa_s->p2p_in_provisioning = 1;
|
|
group_wpa_s->p2pdev = wpa_s;
|
|
if (group_wpa_s != wpa_s) {
|
|
os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
|
|
sizeof(group_wpa_s->p2p_pin));
|
|
group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
|
|
}
|
|
if (res->role_go) {
|
|
wpas_start_wps_go(group_wpa_s, res, 1);
|
|
} else {
|
|
os_get_reltime(&group_wpa_s->scan_min_time);
|
|
wpas_start_wps_enrollee(group_wpa_s, res);
|
|
}
|
|
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
|
|
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
|
|
eloop_register_timeout(15 + res->peer_config_timeout / 100,
|
|
(res->peer_config_timeout % 100) * 10000,
|
|
wpas_p2p_group_formation_timeout, wpa_s, NULL);
|
|
}
|
|
|
|
|
|
static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
|
|
u8 go_intent)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
|
|
" dev_passwd_id=%u go_intent=%u", MAC2STR(src),
|
|
dev_passwd_id, go_intent);
|
|
|
|
wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
|
|
}
|
|
|
|
|
|
static void wpas_dev_found(void *ctx, const u8 *addr,
|
|
const struct p2p_peer_info *info,
|
|
int new_device)
|
|
{
|
|
#ifndef CONFIG_NO_STDOUT_DEBUG
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
char devtype[WPS_DEV_TYPE_BUFSIZE];
|
|
char *wfd_dev_info_hex = NULL;
|
|
|
|
#ifdef CONFIG_WIFI_DISPLAY
|
|
wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
|
|
WFD_SUBELEM_DEVICE_INFO);
|
|
#endif /* CONFIG_WIFI_DISPLAY */
|
|
|
|
if (info->p2ps_instance) {
|
|
char str[256];
|
|
const u8 *buf = wpabuf_head(info->p2ps_instance);
|
|
size_t len = wpabuf_len(info->p2ps_instance);
|
|
|
|
while (len) {
|
|
u32 id;
|
|
u16 methods;
|
|
u8 str_len;
|
|
|
|
if (len < 4 + 2 + 1)
|
|
break;
|
|
id = WPA_GET_LE32(buf);
|
|
buf += sizeof(u32);
|
|
methods = WPA_GET_BE16(buf);
|
|
buf += sizeof(u16);
|
|
str_len = *buf++;
|
|
if (str_len > len - 4 - 2 - 1)
|
|
break;
|
|
os_memcpy(str, buf, str_len);
|
|
str[str_len] = '\0';
|
|
buf += str_len;
|
|
len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_DEVICE_FOUND MACSTR
|
|
" p2p_dev_addr=" MACSTR
|
|
" pri_dev_type=%s name='%s'"
|
|
" config_methods=0x%x"
|
|
" dev_capab=0x%x"
|
|
" group_capab=0x%x"
|
|
" adv_id=%x asp_svc=%s%s",
|
|
MAC2STR(addr),
|
|
MAC2STR(info->p2p_device_addr),
|
|
wps_dev_type_bin2str(
|
|
info->pri_dev_type,
|
|
devtype, sizeof(devtype)),
|
|
info->device_name, methods,
|
|
info->dev_capab, info->group_capab,
|
|
id, str,
|
|
info->vendor_elems ?
|
|
" vendor_elems=1" : "");
|
|
}
|
|
goto done;
|
|
}
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
|
|
" p2p_dev_addr=" MACSTR
|
|
" pri_dev_type=%s name='%s' config_methods=0x%x "
|
|
"dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
|
|
MAC2STR(addr), MAC2STR(info->p2p_device_addr),
|
|
wps_dev_type_bin2str(info->pri_dev_type, devtype,
|
|
sizeof(devtype)),
|
|
info->device_name, info->config_methods,
|
|
info->dev_capab, info->group_capab,
|
|
wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
|
|
wfd_dev_info_hex ? wfd_dev_info_hex : "",
|
|
info->vendor_elems ? " vendor_elems=1" : "",
|
|
new_device);
|
|
|
|
done:
|
|
os_free(wfd_dev_info_hex);
|
|
#endif /* CONFIG_NO_STDOUT_DEBUG */
|
|
|
|
wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
|
|
}
|
|
|
|
|
|
static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
|
|
"p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
|
|
|
|
wpas_notify_p2p_device_lost(wpa_s, dev_addr);
|
|
}
|
|
|
|
|
|
static void wpas_find_stopped(void *ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
if (wpa_s->p2p_scan_work && wpas_abort_ongoing_scan(wpa_s) < 0)
|
|
wpa_printf(MSG_DEBUG, "P2P: Abort ongoing scan failed");
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
|
|
wpas_notify_p2p_find_stopped(wpa_s);
|
|
}
|
|
|
|
|
|
struct wpas_p2p_listen_work {
|
|
unsigned int freq;
|
|
unsigned int duration;
|
|
struct wpabuf *probe_resp_ie;
|
|
};
|
|
|
|
|
|
static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
|
|
{
|
|
if (lwork == NULL)
|
|
return;
|
|
wpabuf_free(lwork->probe_resp_ie);
|
|
os_free(lwork);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpas_p2p_listen_work *lwork;
|
|
|
|
if (!wpa_s->p2p_listen_work)
|
|
return;
|
|
|
|
lwork = wpa_s->p2p_listen_work->ctx;
|
|
wpas_p2p_listen_work_free(lwork);
|
|
radio_work_done(wpa_s->p2p_listen_work);
|
|
wpa_s->p2p_listen_work = NULL;
|
|
}
|
|
|
|
|
|
static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
|
|
{
|
|
struct wpa_supplicant *wpa_s = work->wpa_s;
|
|
struct wpas_p2p_listen_work *lwork = work->ctx;
|
|
unsigned int duration;
|
|
|
|
if (deinit) {
|
|
if (work->started) {
|
|
wpa_s->p2p_listen_work = NULL;
|
|
wpas_stop_listen(wpa_s);
|
|
}
|
|
wpas_p2p_listen_work_free(lwork);
|
|
return;
|
|
}
|
|
|
|
wpa_s->p2p_listen_work = work;
|
|
|
|
wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
|
|
|
|
if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
|
|
"report received Probe Request frames");
|
|
wpas_p2p_listen_work_done(wpa_s);
|
|
return;
|
|
}
|
|
|
|
wpa_s->pending_listen_freq = lwork->freq;
|
|
wpa_s->pending_listen_duration = lwork->duration;
|
|
|
|
duration = lwork->duration;
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
if (wpa_s->extra_roc_dur) {
|
|
wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
|
|
duration, duration + wpa_s->extra_roc_dur);
|
|
duration += wpa_s->extra_roc_dur;
|
|
}
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
|
|
if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
|
|
"to remain on channel (%u MHz) for Listen "
|
|
"state", lwork->freq);
|
|
wpas_p2p_listen_work_done(wpa_s);
|
|
wpa_s->pending_listen_freq = 0;
|
|
return;
|
|
}
|
|
wpa_s->off_channel_freq = 0;
|
|
wpa_s->roc_waiting_drv_freq = lwork->freq;
|
|
}
|
|
|
|
|
|
static int wpas_start_listen(void *ctx, unsigned int freq,
|
|
unsigned int duration,
|
|
const struct wpabuf *probe_resp_ie)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpas_p2p_listen_work *lwork;
|
|
|
|
if (wpa_s->p2p_listen_work) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
|
|
return -1;
|
|
}
|
|
|
|
lwork = os_zalloc(sizeof(*lwork));
|
|
if (lwork == NULL)
|
|
return -1;
|
|
lwork->freq = freq;
|
|
lwork->duration = duration;
|
|
if (probe_resp_ie) {
|
|
lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
|
|
if (lwork->probe_resp_ie == NULL) {
|
|
wpas_p2p_listen_work_free(lwork);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
|
|
lwork) < 0) {
|
|
wpas_p2p_listen_work_free(lwork);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_stop_listen(void *ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
|
|
wpa_drv_cancel_remain_on_channel(wpa_s);
|
|
wpa_s->off_channel_freq = 0;
|
|
wpa_s->roc_waiting_drv_freq = 0;
|
|
}
|
|
wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
|
|
|
|
/*
|
|
* Don't cancel Probe Request RX reporting for a connected P2P Client
|
|
* handling Probe Request frames.
|
|
*/
|
|
if (!wpa_s->p2p_cli_probe)
|
|
wpa_drv_probe_req_report(wpa_s, 0);
|
|
|
|
wpas_p2p_listen_work_done(wpa_s);
|
|
}
|
|
|
|
|
|
static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
|
|
unsigned int freq)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
|
|
freq, 0);
|
|
}
|
|
|
|
|
|
static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer, const char *params,
|
|
unsigned int generated_pin)
|
|
{
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
|
|
" %08d%s", MAC2STR(peer), generated_pin, params);
|
|
}
|
|
|
|
|
|
static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer, const char *params)
|
|
{
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
|
|
"%s", MAC2STR(peer), params);
|
|
}
|
|
|
|
|
|
static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
|
|
const u8 *dev_addr, const u8 *pri_dev_type,
|
|
const char *dev_name, u16 supp_config_methods,
|
|
u8 dev_capab, u8 group_capab, const u8 *group_id,
|
|
size_t group_id_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
char devtype[WPS_DEV_TYPE_BUFSIZE];
|
|
char params[300];
|
|
u8 empty_dev_type[8];
|
|
unsigned int generated_pin = 0;
|
|
struct wpa_supplicant *group = NULL;
|
|
int res;
|
|
|
|
if (group_id) {
|
|
for (group = wpa_s->global->ifaces; group; group = group->next)
|
|
{
|
|
struct wpa_ssid *s = group->current_ssid;
|
|
if (s != NULL &&
|
|
s->mode == WPAS_MODE_P2P_GO &&
|
|
group_id_len - ETH_ALEN == s->ssid_len &&
|
|
os_memcmp(group_id + ETH_ALEN, s->ssid,
|
|
s->ssid_len) == 0)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pri_dev_type == NULL) {
|
|
os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
|
|
pri_dev_type = empty_dev_type;
|
|
}
|
|
res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
|
|
" pri_dev_type=%s name='%s' config_methods=0x%x "
|
|
"dev_capab=0x%x group_capab=0x%x%s%s",
|
|
MAC2STR(dev_addr),
|
|
wps_dev_type_bin2str(pri_dev_type, devtype,
|
|
sizeof(devtype)),
|
|
dev_name, supp_config_methods, dev_capab, group_capab,
|
|
group ? " group=" : "",
|
|
group ? group->ifname : "");
|
|
if (os_snprintf_error(sizeof(params), res))
|
|
wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
|
|
params[sizeof(params) - 1] = '\0';
|
|
|
|
if (config_methods & WPS_CONFIG_DISPLAY) {
|
|
if (wps_generate_pin(&generated_pin) < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
|
|
wpas_notify_p2p_provision_discovery(
|
|
wpa_s, peer, 0 /* response */,
|
|
P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
|
|
return;
|
|
}
|
|
wpas_prov_disc_local_display(wpa_s, peer, params,
|
|
generated_pin);
|
|
} else if (config_methods & WPS_CONFIG_KEYPAD)
|
|
wpas_prov_disc_local_keypad(wpa_s, peer, params);
|
|
else if (config_methods & WPS_CONFIG_PUSHBUTTON)
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
|
|
MACSTR "%s", MAC2STR(peer), params);
|
|
|
|
wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
|
|
P2P_PROV_DISC_SUCCESS,
|
|
config_methods, generated_pin);
|
|
}
|
|
|
|
|
|
static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
unsigned int generated_pin = 0;
|
|
char params[20];
|
|
|
|
if (wpa_s->pending_pd_before_join &&
|
|
(os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
|
|
os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
|
|
wpa_s->pending_pd_before_join = 0;
|
|
wpa_printf(MSG_DEBUG, "P2P: Starting pending "
|
|
"join-existing-group operation");
|
|
wpas_p2p_join_start(wpa_s, 0, NULL, 0);
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
|
|
wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
|
|
int res;
|
|
|
|
res = os_snprintf(params, sizeof(params), " peer_go=%d",
|
|
wpa_s->pending_pd_use == AUTO_PD_JOIN);
|
|
if (os_snprintf_error(sizeof(params), res))
|
|
params[sizeof(params) - 1] = '\0';
|
|
} else
|
|
params[0] = '\0';
|
|
|
|
if (config_methods & WPS_CONFIG_DISPLAY)
|
|
wpas_prov_disc_local_keypad(wpa_s, peer, params);
|
|
else if (config_methods & WPS_CONFIG_KEYPAD) {
|
|
if (wps_generate_pin(&generated_pin) < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Could not generate PIN");
|
|
wpas_notify_p2p_provision_discovery(
|
|
wpa_s, peer, 0 /* response */,
|
|
P2P_PROV_DISC_INFO_UNAVAILABLE, 0, 0);
|
|
return;
|
|
}
|
|
wpas_prov_disc_local_display(wpa_s, peer, params,
|
|
generated_pin);
|
|
} else if (config_methods & WPS_CONFIG_PUSHBUTTON)
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
|
|
MACSTR "%s", MAC2STR(peer), params);
|
|
|
|
wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
|
|
P2P_PROV_DISC_SUCCESS,
|
|
config_methods, generated_pin);
|
|
}
|
|
|
|
|
|
static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
|
|
enum p2p_prov_disc_status status,
|
|
u32 adv_id, const u8 *adv_mac,
|
|
const char *deferred_session_resp)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
if (wpa_s->p2p_fallback_to_go_neg) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
|
|
"failed - fall back to GO Negotiation");
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_FALLBACK_TO_GO_NEG
|
|
"reason=PD-failed");
|
|
wpas_p2p_fallback_to_go_neg(wpa_s, 0);
|
|
return;
|
|
}
|
|
|
|
if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
|
|
wpa_s->pending_pd_before_join = 0;
|
|
wpa_printf(MSG_DEBUG, "P2P: Starting pending "
|
|
"join-existing-group operation (no ACK for PD "
|
|
"Req attempts)");
|
|
wpas_p2p_join_start(wpa_s, 0, NULL, 0);
|
|
return;
|
|
}
|
|
|
|
if (adv_id && adv_mac && deferred_session_resp) {
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
|
|
" p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
|
|
" deferred_session_resp='%s'",
|
|
MAC2STR(peer), status, adv_id,
|
|
deferred_session_resp);
|
|
} else if (adv_id && adv_mac) {
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
|
|
" p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
|
|
MAC2STR(peer), status, adv_id);
|
|
} else {
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
|
|
" p2p_dev_addr=" MACSTR " status=%d",
|
|
MAC2STR(peer), status);
|
|
}
|
|
|
|
wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
|
|
status, 0, 0);
|
|
}
|
|
|
|
|
|
static int freq_included(struct wpa_supplicant *wpa_s,
|
|
const struct p2p_channels *channels,
|
|
unsigned int freq)
|
|
{
|
|
if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
|
|
wpas_p2p_go_is_peer_freq(wpa_s, freq))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
|
|
{
|
|
unsigned int num = P2P_MAX_CHANNELS;
|
|
int *common_freqs;
|
|
int ret;
|
|
|
|
p2p_go_dump_common_freqs(wpa_s);
|
|
common_freqs = os_calloc(num, sizeof(int));
|
|
if (!common_freqs)
|
|
return;
|
|
|
|
ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
|
|
if (ret < 0) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Failed to get group common freqs");
|
|
os_free(common_freqs);
|
|
return;
|
|
}
|
|
|
|
os_free(wpa_s->p2p_group_common_freqs);
|
|
wpa_s->p2p_group_common_freqs = common_freqs;
|
|
wpa_s->p2p_group_common_freqs_num = num;
|
|
p2p_go_dump_common_freqs(wpa_s);
|
|
}
|
|
|
|
|
|
/*
|
|
* Check if the given frequency is one of the possible operating frequencies
|
|
* set after the completion of the GO Negotiation.
|
|
*/
|
|
static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
|
|
{
|
|
unsigned int i;
|
|
|
|
p2p_go_dump_common_freqs(wpa_s);
|
|
|
|
/* assume no restrictions */
|
|
if (!wpa_s->p2p_group_common_freqs_num)
|
|
return 1;
|
|
|
|
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
|
|
if (wpa_s->p2p_group_common_freqs[i] == freq)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
|
|
struct sta_info *sta, void *ctx)
|
|
{
|
|
int *ecsa_support = ctx;
|
|
|
|
*ecsa_support &= sta->ecsa_supported;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Check if all the peers support eCSA */
|
|
static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
|
|
{
|
|
int ecsa_support = 1;
|
|
|
|
ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
|
|
&ecsa_support);
|
|
|
|
return ecsa_support;
|
|
}
|
|
|
|
|
|
/**
|
|
* Pick the best frequency to use from all the currently used frequencies.
|
|
*/
|
|
static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
|
|
struct wpa_used_freq_data *freqs,
|
|
unsigned int num)
|
|
{
|
|
unsigned int i, c;
|
|
|
|
/* find a candidate freq that is supported by P2P */
|
|
for (c = 0; c < num; c++)
|
|
if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
|
|
break;
|
|
|
|
if (c == num)
|
|
return 0;
|
|
|
|
/* once we have a candidate, try to find a 'better' one */
|
|
for (i = c + 1; i < num; i++) {
|
|
if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
|
|
continue;
|
|
|
|
/*
|
|
* 1. Infrastructure station interfaces have higher preference.
|
|
* 2. P2P Clients have higher preference.
|
|
* 3. All others.
|
|
*/
|
|
if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
|
|
c = i;
|
|
break;
|
|
}
|
|
|
|
if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
|
|
c = i;
|
|
}
|
|
return freqs[c].freq;
|
|
}
|
|
|
|
|
|
static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
|
|
const u8 *go_dev_addr, const u8 *ssid,
|
|
size_t ssid_len, int *go, u8 *group_bssid,
|
|
int *force_freq, int persistent_group,
|
|
const struct p2p_channels *channels,
|
|
int dev_pw_id)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *s;
|
|
struct wpa_used_freq_data *freqs;
|
|
struct wpa_supplicant *grp;
|
|
int best_freq;
|
|
|
|
if (!persistent_group) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
|
|
" to join an active group (SSID: %s)",
|
|
MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
|
|
if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
|
|
(os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
|
|
== 0 ||
|
|
os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Accept previously "
|
|
"authorized invitation");
|
|
goto accept_inv;
|
|
}
|
|
|
|
#ifdef CONFIG_WPS_NFC
|
|
if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
|
|
dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
|
|
wpa_s->p2p_wps_method = WPS_NFC;
|
|
wpa_s->pending_join_wps_method = WPS_NFC;
|
|
os_memcpy(wpa_s->pending_join_dev_addr,
|
|
go_dev_addr, ETH_ALEN);
|
|
os_memcpy(wpa_s->pending_join_iface_addr,
|
|
bssid, ETH_ALEN);
|
|
goto accept_inv;
|
|
}
|
|
#endif /* CONFIG_WPS_NFC */
|
|
|
|
/*
|
|
* Do not accept the invitation automatically; notify user and
|
|
* request approval.
|
|
*/
|
|
return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
|
|
}
|
|
|
|
grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
|
|
if (grp) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
|
|
"running persistent group");
|
|
if (*go)
|
|
os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
|
|
goto accept_inv;
|
|
}
|
|
|
|
if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
|
|
os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
|
|
"invitation to re-invoke a persistent group");
|
|
os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
|
|
} else if (!wpa_s->conf->persistent_reconnect)
|
|
return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
|
|
|
|
for (s = wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled == 2 &&
|
|
os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
|
|
s->ssid_len == ssid_len &&
|
|
os_memcmp(ssid, s->ssid, ssid_len) == 0)
|
|
break;
|
|
}
|
|
|
|
if (!s) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
|
|
" requested reinvocation of an unknown group",
|
|
MAC2STR(sa));
|
|
return P2P_SC_FAIL_UNKNOWN_GROUP;
|
|
}
|
|
|
|
if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
|
|
*go = 1;
|
|
if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
|
|
wpa_printf(MSG_DEBUG, "P2P: The only available "
|
|
"interface is already in use - reject "
|
|
"invitation");
|
|
return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
|
|
}
|
|
if (wpa_s->p2p_mgmt)
|
|
os_memcpy(group_bssid, wpa_s->parent->own_addr,
|
|
ETH_ALEN);
|
|
else
|
|
os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
|
|
} else if (s->mode == WPAS_MODE_P2P_GO) {
|
|
*go = 1;
|
|
if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
|
|
{
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
|
|
"interface address for the group");
|
|
return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
|
|
}
|
|
os_memcpy(group_bssid, wpa_s->pending_interface_addr,
|
|
ETH_ALEN);
|
|
}
|
|
|
|
accept_inv:
|
|
wpas_p2p_set_own_freq_preference(wpa_s, 0);
|
|
|
|
best_freq = 0;
|
|
freqs = os_calloc(wpa_s->num_multichan_concurrent,
|
|
sizeof(struct wpa_used_freq_data));
|
|
if (freqs) {
|
|
int num_channels = wpa_s->num_multichan_concurrent;
|
|
int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
|
|
best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
|
|
os_free(freqs);
|
|
}
|
|
|
|
/* Get one of the frequencies currently in use */
|
|
if (best_freq > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
|
|
wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
|
|
|
|
if (wpa_s->num_multichan_concurrent < 2 ||
|
|
wpas_p2p_num_unused_channels(wpa_s) < 1) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
|
|
*force_freq = best_freq;
|
|
}
|
|
}
|
|
|
|
if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
|
|
wpas_p2p_num_unused_channels(wpa_s) > 0) {
|
|
if (*go == 0) {
|
|
/* We are the client */
|
|
wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
|
|
"running a GO but we are capable of MCC, "
|
|
"figure out the best channel to use");
|
|
*force_freq = 0;
|
|
} else if (!freq_included(wpa_s, channels, *force_freq)) {
|
|
/* We are the GO, and *force_freq is not in the
|
|
* intersection */
|
|
wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
|
|
"in intersection but we are capable of MCC, "
|
|
"figure out the best channel to use",
|
|
*force_freq);
|
|
*force_freq = 0;
|
|
}
|
|
}
|
|
|
|
return P2P_SC_SUCCESS;
|
|
}
|
|
|
|
|
|
static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
|
|
const u8 *ssid, size_t ssid_len,
|
|
const u8 *go_dev_addr, u8 status,
|
|
int op_freq)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *s;
|
|
|
|
for (s = wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled == 2 &&
|
|
s->ssid_len == ssid_len &&
|
|
os_memcmp(ssid, s->ssid, ssid_len) == 0)
|
|
break;
|
|
}
|
|
|
|
if (status == P2P_SC_SUCCESS) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
|
|
" was accepted; op_freq=%d MHz, SSID=%s",
|
|
MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
|
|
if (s) {
|
|
int go = s->mode == WPAS_MODE_P2P_GO;
|
|
if (go) {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_INVITATION_ACCEPTED
|
|
"sa=" MACSTR
|
|
" persistent=%d freq=%d",
|
|
MAC2STR(sa), s->id, op_freq);
|
|
} else {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_INVITATION_ACCEPTED
|
|
"sa=" MACSTR
|
|
" persistent=%d",
|
|
MAC2STR(sa), s->id);
|
|
}
|
|
wpas_p2p_group_add_persistent(
|
|
wpa_s, s, go, 0, op_freq, 0,
|
|
wpa_s->conf->p2p_go_ht40,
|
|
wpa_s->conf->p2p_go_vht,
|
|
0,
|
|
wpa_s->conf->p2p_go_he,
|
|
wpa_s->conf->p2p_go_edmg, NULL,
|
|
go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
|
|
1);
|
|
} else if (bssid) {
|
|
wpa_s->user_initiated_pd = 0;
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_INVITATION_ACCEPTED
|
|
"sa=" MACSTR " go_dev_addr=" MACSTR
|
|
" bssid=" MACSTR " unknown-network",
|
|
MAC2STR(sa), MAC2STR(go_dev_addr),
|
|
MAC2STR(bssid));
|
|
wpas_p2p_join(wpa_s, bssid, go_dev_addr,
|
|
wpa_s->p2p_wps_method, 0, op_freq,
|
|
ssid, ssid_len);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
|
|
" was rejected (status %u)", MAC2STR(sa), status);
|
|
return;
|
|
}
|
|
|
|
if (!s) {
|
|
if (bssid) {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_INVITATION_RECEIVED
|
|
"sa=" MACSTR " go_dev_addr=" MACSTR
|
|
" bssid=" MACSTR " unknown-network",
|
|
MAC2STR(sa), MAC2STR(go_dev_addr),
|
|
MAC2STR(bssid));
|
|
} else {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_INVITATION_RECEIVED
|
|
"sa=" MACSTR " go_dev_addr=" MACSTR
|
|
" unknown-network",
|
|
MAC2STR(sa), MAC2STR(go_dev_addr));
|
|
}
|
|
wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
|
|
bssid, 0, op_freq);
|
|
return;
|
|
}
|
|
|
|
if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
|
|
"sa=" MACSTR " persistent=%d freq=%d",
|
|
MAC2STR(sa), s->id, op_freq);
|
|
} else {
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
|
|
"sa=" MACSTR " persistent=%d",
|
|
MAC2STR(sa), s->id);
|
|
}
|
|
wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
|
|
s->id, op_freq);
|
|
}
|
|
|
|
|
|
static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *ssid,
|
|
const u8 *peer, int inv)
|
|
{
|
|
size_t i;
|
|
struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
|
|
|
|
if (ssid == NULL)
|
|
return;
|
|
|
|
for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
|
|
if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
|
|
ETH_ALEN) == 0)
|
|
break;
|
|
}
|
|
if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
|
|
if (ssid->mode != WPAS_MODE_P2P_GO &&
|
|
os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
|
|
"due to invitation result", ssid->id);
|
|
wpas_notify_network_removed(wpa_s, ssid);
|
|
wpa_config_remove_network(wpa_s->conf, ssid->id);
|
|
return;
|
|
}
|
|
return; /* Peer not found in client list */
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
|
|
"group %d client list%s",
|
|
MAC2STR(peer), ssid->id,
|
|
inv ? " due to invitation result" : "");
|
|
os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
|
|
ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
|
|
(ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
|
|
ssid->num_p2p_clients--;
|
|
if (p2p_wpa_s->conf->update_config &&
|
|
wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
}
|
|
|
|
|
|
static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
|
|
wpa_s = wpa_s->global->p2p_invite_group;
|
|
if (wpa_s == NULL)
|
|
return; /* No known invitation group */
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
|
|
!ssid->p2p_persistent_group)
|
|
return; /* Not operating as a GO in persistent group */
|
|
ssid = wpas_p2p_get_persistent(wpa_s->p2pdev, peer,
|
|
ssid->ssid, ssid->ssid_len);
|
|
wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
|
|
}
|
|
|
|
|
|
static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
|
|
const struct p2p_channels *channels,
|
|
const u8 *peer, int neg_freq,
|
|
int peer_oper_freq)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *ssid;
|
|
int freq;
|
|
|
|
if (bssid) {
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
|
|
"status=%d " MACSTR,
|
|
status, MAC2STR(bssid));
|
|
} else {
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
|
|
"status=%d ", status);
|
|
}
|
|
wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
|
|
status, MAC2STR(peer));
|
|
if (wpa_s->pending_invite_ssid_id == -1) {
|
|
struct wpa_supplicant *group_if =
|
|
wpa_s->global->p2p_invite_group;
|
|
|
|
if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
|
|
wpas_remove_persistent_client(wpa_s, peer);
|
|
|
|
/*
|
|
* Invitation to an active group. If this is successful and we
|
|
* are the GO, set the client wait to postpone some concurrent
|
|
* operations and to allow provisioning and connection to happen
|
|
* more quickly.
|
|
*/
|
|
if (status == P2P_SC_SUCCESS &&
|
|
group_if && group_if->current_ssid &&
|
|
group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
|
|
os_get_reltime(&wpa_s->global->p2p_go_wait_client);
|
|
#ifdef CONFIG_TESTING_OPTIONS
|
|
if (group_if->p2p_go_csa_on_inv) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Testing: force P2P GO CSA after invitation");
|
|
eloop_cancel_timeout(
|
|
wpas_p2p_reconsider_moving_go,
|
|
wpa_s, NULL);
|
|
eloop_register_timeout(
|
|
0, 50000,
|
|
wpas_p2p_reconsider_moving_go,
|
|
wpa_s, NULL);
|
|
}
|
|
#endif /* CONFIG_TESTING_OPTIONS */
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
|
|
"invitation exchange to indicate readiness for "
|
|
"re-invocation");
|
|
}
|
|
|
|
if (status != P2P_SC_SUCCESS) {
|
|
if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
|
|
ssid = wpa_config_get_network(
|
|
wpa_s->conf, wpa_s->pending_invite_ssid_id);
|
|
wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
|
|
}
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
return;
|
|
}
|
|
|
|
ssid = wpa_config_get_network(wpa_s->conf,
|
|
wpa_s->pending_invite_ssid_id);
|
|
if (ssid == NULL) {
|
|
wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
|
|
"data matching with invitation");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* The peer could have missed our ctrl::ack frame for Invitation
|
|
* Response and continue retransmitting the frame. To reduce the
|
|
* likelihood of the peer not getting successful TX status for the
|
|
* Invitation Response frame, wait a short time here before starting
|
|
* the persistent group so that we will remain on the current channel to
|
|
* acknowledge any possible retransmission from the peer.
|
|
*/
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
|
|
"starting persistent group");
|
|
os_sleep(0, 50000);
|
|
|
|
if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
|
|
freq_included(wpa_s, channels, neg_freq))
|
|
freq = neg_freq;
|
|
else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
|
|
freq_included(wpa_s, channels, peer_oper_freq))
|
|
freq = peer_oper_freq;
|
|
else
|
|
freq = 0;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
|
|
freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
|
|
wpas_p2p_group_add_persistent(wpa_s, ssid,
|
|
ssid->mode == WPAS_MODE_P2P_GO,
|
|
wpa_s->p2p_persistent_go_freq,
|
|
freq,
|
|
wpa_s->p2p_go_vht_center_freq2,
|
|
wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
|
|
wpa_s->p2p_go_max_oper_chwidth,
|
|
wpa_s->p2p_go_he,
|
|
wpa_s->p2p_go_edmg,
|
|
channels,
|
|
ssid->mode == WPAS_MODE_P2P_GO ?
|
|
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
|
|
0, 1);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_disallowed_freq(struct wpa_global *global,
|
|
unsigned int freq)
|
|
{
|
|
if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
|
|
return 1;
|
|
return freq_range_list_includes(&global->p2p_disallow_freq, freq);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
|
|
{
|
|
reg->channel[reg->channels] = chan;
|
|
reg->channels++;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
|
|
struct p2p_channels *chan,
|
|
struct p2p_channels *cli_chan)
|
|
{
|
|
int i, cla = 0;
|
|
|
|
wpa_s->global->p2p_24ghz_social_channels = 1;
|
|
|
|
os_memset(cli_chan, 0, sizeof(*cli_chan));
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
|
|
"band");
|
|
|
|
/* Operating class 81 - 2.4 GHz band channels 1..13 */
|
|
chan->reg_class[cla].reg_class = 81;
|
|
chan->reg_class[cla].channels = 0;
|
|
for (i = 0; i < 11; i++) {
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
|
|
}
|
|
if (chan->reg_class[cla].channels)
|
|
cla++;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
|
|
"band");
|
|
|
|
/* Operating class 115 - 5 GHz, channels 36-48 */
|
|
chan->reg_class[cla].reg_class = 115;
|
|
chan->reg_class[cla].channels = 0;
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 36);
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 40);
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 44);
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 48);
|
|
if (chan->reg_class[cla].channels)
|
|
cla++;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
|
|
"band");
|
|
|
|
/* Operating class 124 - 5 GHz, channels 149,153,157,161 */
|
|
chan->reg_class[cla].reg_class = 124;
|
|
chan->reg_class[cla].channels = 0;
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 149);
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 153);
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 157);
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
|
|
wpas_p2p_add_chan(&chan->reg_class[cla], 161);
|
|
if (chan->reg_class[cla].channels)
|
|
cla++;
|
|
|
|
chan->reg_classes = cla;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int has_channel(struct wpa_global *global,
|
|
struct hostapd_hw_modes *mode, u8 chan, int *flags)
|
|
{
|
|
int i;
|
|
unsigned int freq;
|
|
|
|
freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
|
|
chan * 5;
|
|
if (wpas_p2p_disallowed_freq(global, freq))
|
|
return NOT_ALLOWED;
|
|
|
|
for (i = 0; i < mode->num_channels; i++) {
|
|
if (mode->channels[i].chan == chan) {
|
|
if (flags)
|
|
*flags = mode->channels[i].flag;
|
|
if (mode->channels[i].flag &
|
|
(HOSTAPD_CHAN_DISABLED |
|
|
HOSTAPD_CHAN_RADAR))
|
|
return NOT_ALLOWED;
|
|
if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
|
|
return NO_IR;
|
|
return ALLOWED;
|
|
}
|
|
}
|
|
|
|
return NOT_ALLOWED;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode,
|
|
u8 channel)
|
|
{
|
|
u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
|
|
size_t i;
|
|
|
|
if (mode->mode != HOSTAPD_MODE_IEEE80211A)
|
|
return 0;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(center_channels); i++)
|
|
/*
|
|
* In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
|
|
* so the center channel is 6 channels away from the start/end.
|
|
*/
|
|
if (channel >= center_channels[i] - 6 &&
|
|
channel <= center_channels[i] + 6)
|
|
return center_channels[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode,
|
|
u8 channel, u8 bw)
|
|
{
|
|
u8 center_chan;
|
|
int i, flags;
|
|
enum chan_allowed res, ret = ALLOWED;
|
|
|
|
center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
|
|
if (!center_chan)
|
|
return NOT_ALLOWED;
|
|
if (center_chan >= 58 && center_chan <= 138)
|
|
return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
|
|
|
|
/* check all the channels are available */
|
|
for (i = 0; i < 4; i++) {
|
|
int adj_chan = center_chan - 6 + i * 4;
|
|
|
|
res = has_channel(wpa_s->global, mode, adj_chan, &flags);
|
|
if (res == NOT_ALLOWED)
|
|
return NOT_ALLOWED;
|
|
if (res == NO_IR)
|
|
ret = NO_IR;
|
|
|
|
if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
|
|
return NOT_ALLOWED;
|
|
if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
|
|
return NOT_ALLOWED;
|
|
if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
|
|
return NOT_ALLOWED;
|
|
if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
|
|
return NOT_ALLOWED;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode,
|
|
u8 channel)
|
|
{
|
|
u8 center_channels[] = { 50, 114 };
|
|
unsigned int i;
|
|
|
|
if (mode->mode != HOSTAPD_MODE_IEEE80211A)
|
|
return 0;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(center_channels); i++)
|
|
/*
|
|
* In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
|
|
* so the center channel is 14 channels away from the start/end.
|
|
*/
|
|
if (channel >= center_channels[i] - 14 &&
|
|
channel <= center_channels[i] + 14)
|
|
return center_channels[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode,
|
|
u8 channel, u8 bw)
|
|
{
|
|
u8 center_chan;
|
|
int i, flags;
|
|
enum chan_allowed res, ret = ALLOWED;
|
|
|
|
center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
|
|
if (!center_chan)
|
|
return NOT_ALLOWED;
|
|
/* VHT 160 MHz uses DFS channels in most countries. */
|
|
|
|
/* Check all the channels are available */
|
|
for (i = 0; i < 8; i++) {
|
|
int adj_chan = center_chan - 14 + i * 4;
|
|
|
|
res = has_channel(wpa_s->global, mode, adj_chan, &flags);
|
|
if (res == NOT_ALLOWED)
|
|
return NOT_ALLOWED;
|
|
|
|
if (res == NO_IR)
|
|
ret = NO_IR;
|
|
|
|
if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
|
|
return NOT_ALLOWED;
|
|
if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
|
|
return NOT_ALLOWED;
|
|
if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
|
|
return NOT_ALLOWED;
|
|
if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
|
|
return NOT_ALLOWED;
|
|
if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
|
|
return NOT_ALLOWED;
|
|
if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
|
|
return NOT_ALLOWED;
|
|
if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
|
|
return NOT_ALLOWED;
|
|
if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
|
|
return NOT_ALLOWED;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static enum chan_allowed wpas_p2p_verify_edmg(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode,
|
|
u8 channel)
|
|
{
|
|
struct ieee80211_edmg_config edmg;
|
|
|
|
hostapd_encode_edmg_chan(1, channel, 0, &edmg);
|
|
if (edmg.channels && ieee802_edmg_is_allowed(mode->edmg, edmg))
|
|
return ALLOWED;
|
|
|
|
return NOT_ALLOWED;
|
|
}
|
|
|
|
|
|
static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode,
|
|
u8 channel, u8 bw)
|
|
{
|
|
int flag = 0;
|
|
enum chan_allowed res, res2;
|
|
|
|
res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
|
|
if (bw == BW40MINUS) {
|
|
if (!(flag & HOSTAPD_CHAN_HT40MINUS))
|
|
return NOT_ALLOWED;
|
|
res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
|
|
} else if (bw == BW40PLUS) {
|
|
if (!(flag & HOSTAPD_CHAN_HT40PLUS))
|
|
return NOT_ALLOWED;
|
|
res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
|
|
} else if (bw == BW80) {
|
|
res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
|
|
} else if (bw == BW160) {
|
|
res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
|
|
} else if (bw == BW4320 || bw == BW6480 || bw == BW8640) {
|
|
return wpas_p2p_verify_edmg(wpa_s, mode, channel);
|
|
}
|
|
|
|
if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
|
|
return NOT_ALLOWED;
|
|
if (res == NO_IR || res2 == NO_IR)
|
|
return NO_IR;
|
|
return res;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
|
|
struct p2p_channels *chan,
|
|
struct p2p_channels *cli_chan,
|
|
bool p2p_disable_6ghz)
|
|
{
|
|
struct hostapd_hw_modes *mode;
|
|
int cla, op, cli_cla;
|
|
|
|
if (wpa_s->hw.modes == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
|
|
"of all supported channels; assume dualband "
|
|
"support");
|
|
return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
|
|
}
|
|
|
|
cla = cli_cla = 0;
|
|
|
|
for (op = 0; global_op_class[op].op_class; op++) {
|
|
const struct oper_class_map *o = &global_op_class[op];
|
|
u8 ch;
|
|
struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
|
|
|
|
if (o->p2p == NO_P2P_SUPP ||
|
|
(is_6ghz_op_class(o->op_class) && p2p_disable_6ghz))
|
|
continue;
|
|
|
|
mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode,
|
|
is_6ghz_op_class(o->op_class));
|
|
if (mode == NULL)
|
|
continue;
|
|
if (mode->mode == HOSTAPD_MODE_IEEE80211G)
|
|
wpa_s->global->p2p_24ghz_social_channels = 1;
|
|
for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
|
|
enum chan_allowed res;
|
|
|
|
/* Check for non-continuous jump in channel index
|
|
* incrementation */
|
|
if ((o->op_class == 128 || o->op_class == 130) &&
|
|
ch < 149 && ch + o->inc > 149)
|
|
ch = 149;
|
|
|
|
res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
|
|
if (res == ALLOWED) {
|
|
if (reg == NULL) {
|
|
if (cla == P2P_MAX_REG_CLASSES)
|
|
continue;
|
|
wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
|
|
o->op_class);
|
|
reg = &chan->reg_class[cla];
|
|
cla++;
|
|
reg->reg_class = o->op_class;
|
|
}
|
|
if (reg->channels == P2P_MAX_REG_CLASS_CHANNELS)
|
|
continue;
|
|
reg->channel[reg->channels] = ch;
|
|
reg->channels++;
|
|
} else if (res == NO_IR &&
|
|
wpa_s->conf->p2p_add_cli_chan) {
|
|
if (cli_reg == NULL) {
|
|
if (cli_cla == P2P_MAX_REG_CLASSES)
|
|
continue;
|
|
wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
|
|
o->op_class);
|
|
cli_reg = &cli_chan->reg_class[cli_cla];
|
|
cli_cla++;
|
|
cli_reg->reg_class = o->op_class;
|
|
}
|
|
if (cli_reg->channels ==
|
|
P2P_MAX_REG_CLASS_CHANNELS)
|
|
continue;
|
|
cli_reg->channel[cli_reg->channels] = ch;
|
|
cli_reg->channels++;
|
|
}
|
|
}
|
|
if (reg) {
|
|
wpa_hexdump(MSG_DEBUG, "P2P: Channels",
|
|
reg->channel, reg->channels);
|
|
}
|
|
if (cli_reg) {
|
|
wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
|
|
cli_reg->channel, cli_reg->channels);
|
|
}
|
|
}
|
|
|
|
chan->reg_classes = cla;
|
|
cli_chan->reg_classes = cli_cla;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode, u8 channel)
|
|
{
|
|
int op;
|
|
enum chan_allowed ret;
|
|
|
|
for (op = 0; global_op_class[op].op_class; op++) {
|
|
const struct oper_class_map *o = &global_op_class[op];
|
|
u8 ch;
|
|
|
|
if (o->p2p == NO_P2P_SUPP ||
|
|
(is_6ghz_op_class(o->op_class) &&
|
|
wpa_s->conf->p2p_6ghz_disable))
|
|
continue;
|
|
|
|
for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
|
|
if (o->mode != HOSTAPD_MODE_IEEE80211A ||
|
|
(o->bw != BW40PLUS && o->bw != BW40MINUS) ||
|
|
ch != channel)
|
|
continue;
|
|
ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
|
|
if (ret == ALLOWED)
|
|
return (o->bw == BW40MINUS) ? -1 : 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode, u8 channel)
|
|
{
|
|
if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
|
|
return 0;
|
|
|
|
return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
|
|
}
|
|
|
|
|
|
int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode, u8 channel)
|
|
{
|
|
if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
|
|
return 0;
|
|
return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
|
|
}
|
|
|
|
|
|
static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
|
|
size_t buf_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
|
|
break;
|
|
}
|
|
if (wpa_s == NULL)
|
|
return -1;
|
|
|
|
return wpa_drv_get_noa(wpa_s, buf, buf_len);
|
|
}
|
|
|
|
|
|
struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
|
|
const u8 *ssid, size_t ssid_len)
|
|
{
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
struct wpa_ssid *s = wpa_s->current_ssid;
|
|
if (s == NULL)
|
|
continue;
|
|
if (s->mode != WPAS_MODE_P2P_GO &&
|
|
s->mode != WPAS_MODE_AP &&
|
|
s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
|
|
continue;
|
|
if (s->ssid_len != ssid_len ||
|
|
os_memcmp(ssid, s->ssid, ssid_len) != 0)
|
|
continue;
|
|
return wpa_s;
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer_dev_addr)
|
|
{
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
|
|
continue;
|
|
if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
|
|
return wpa_s;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static int wpas_go_connected(void *ctx, const u8 *dev_addr)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
|
|
}
|
|
|
|
|
|
static int wpas_is_concurrent_session_active(void *ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_supplicant *ifs;
|
|
|
|
for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
|
|
if (ifs == wpa_s)
|
|
continue;
|
|
if (ifs->wpa_state > WPA_ASSOCIATED)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
wpa_msg_global(wpa_s, level, "P2P: %s", msg);
|
|
}
|
|
|
|
|
|
int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
|
|
const char *conf_p2p_dev)
|
|
{
|
|
struct wpa_interface iface;
|
|
struct wpa_supplicant *p2pdev_wpa_s;
|
|
char ifname[100];
|
|
char force_name[100];
|
|
int ret;
|
|
|
|
ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
|
|
wpa_s->ifname);
|
|
if (os_snprintf_error(sizeof(ifname), ret))
|
|
return -1;
|
|
/* Cut length at the maximum size. Note that we don't need to ensure
|
|
* collision free names here as the created interface is not a netdev.
|
|
*/
|
|
ifname[IFNAMSIZ - 1] = '\0';
|
|
force_name[0] = '\0';
|
|
wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
|
|
ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
|
|
force_name, wpa_s->pending_interface_addr, NULL);
|
|
if (ret < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
|
|
return ret;
|
|
}
|
|
os_strlcpy(wpa_s->pending_interface_name, ifname,
|
|
sizeof(wpa_s->pending_interface_name));
|
|
|
|
os_memset(&iface, 0, sizeof(iface));
|
|
iface.p2p_mgmt = 1;
|
|
iface.ifname = wpa_s->pending_interface_name;
|
|
iface.driver = wpa_s->driver->name;
|
|
iface.driver_param = wpa_s->conf->driver_param;
|
|
|
|
/*
|
|
* If a P2P Device configuration file was given, use it as the interface
|
|
* configuration file (instead of using parent's configuration file.
|
|
*/
|
|
if (conf_p2p_dev) {
|
|
iface.confname = conf_p2p_dev;
|
|
iface.ctrl_interface = NULL;
|
|
} else {
|
|
iface.confname = wpa_s->confname;
|
|
iface.ctrl_interface = wpa_s->conf->ctrl_interface;
|
|
}
|
|
|
|
p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
|
|
if (!p2pdev_wpa_s) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
|
|
return -1;
|
|
}
|
|
|
|
p2pdev_wpa_s->p2pdev = p2pdev_wpa_s;
|
|
wpa_s->pending_interface_name[0] = '\0';
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
|
|
const u8 *noa, size_t noa_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s, *intf = ctx;
|
|
char hex[100];
|
|
|
|
for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (wpa_s->waiting_presence_resp)
|
|
break;
|
|
}
|
|
if (!wpa_s) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
|
|
return;
|
|
}
|
|
wpa_s->waiting_presence_resp = 0;
|
|
|
|
wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
|
|
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
|
|
" status=%u noa=%s", MAC2STR(src), status, hex);
|
|
}
|
|
|
|
|
|
static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
|
|
size_t ssid_len, u8 *go_dev_addr,
|
|
u8 *ret_ssid, size_t *ret_ssid_len,
|
|
u8 *intended_iface_addr)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *s;
|
|
|
|
s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
|
|
if (s) {
|
|
os_memcpy(ret_ssid, s->ssid, s->ssid_len);
|
|
*ret_ssid_len = s->ssid_len;
|
|
os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
|
|
|
|
if (s->mode != WPAS_MODE_P2P_GO) {
|
|
os_memset(intended_iface_addr, 0, ETH_ALEN);
|
|
} else if (wpas_p2p_create_iface(wpa_s)) {
|
|
if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
|
|
return 0;
|
|
|
|
os_memcpy(intended_iface_addr,
|
|
wpa_s->pending_interface_addr, ETH_ALEN);
|
|
} else {
|
|
os_memcpy(intended_iface_addr, wpa_s->own_addr,
|
|
ETH_ALEN);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_get_go_info(void *ctx, u8 *intended_addr,
|
|
u8 *ssid, size_t *ssid_len, int *group_iface,
|
|
unsigned int *freq)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_supplicant *go;
|
|
struct wpa_ssid *s;
|
|
|
|
/*
|
|
* group_iface will be set to 1 only if a dedicated interface for P2P
|
|
* role is required. First, we try to reuse an active GO. However,
|
|
* if it is not present, we will try to reactivate an existing
|
|
* persistent group and set group_iface to 1, so the caller will know
|
|
* that the pending interface should be used.
|
|
*/
|
|
*group_iface = 0;
|
|
|
|
if (freq)
|
|
*freq = 0;
|
|
|
|
go = wpas_p2p_get_go_group(wpa_s);
|
|
if (!go) {
|
|
s = wpas_p2p_get_persistent_go(wpa_s);
|
|
*group_iface = wpas_p2p_create_iface(wpa_s);
|
|
if (s)
|
|
os_memcpy(intended_addr, s->bssid, ETH_ALEN);
|
|
else
|
|
return 0;
|
|
} else {
|
|
s = go->current_ssid;
|
|
os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
|
|
if (freq)
|
|
*freq = go->assoc_freq;
|
|
}
|
|
|
|
os_memcpy(ssid, s->ssid, s->ssid_len);
|
|
*ssid_len = s->ssid_len;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
|
|
const u8 *ssid, size_t ssid_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *s;
|
|
int save_config = 0;
|
|
size_t i;
|
|
|
|
/* Start with our first choice of Persistent Groups */
|
|
while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
|
|
if (go && ssid && ssid_len &&
|
|
s->ssid_len == ssid_len &&
|
|
os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
|
|
os_memcmp(ssid, s->ssid, ssid_len) == 0)
|
|
break;
|
|
|
|
/* Remove stale persistent group */
|
|
if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Remove stale persistent group id=%d",
|
|
s->id);
|
|
wpas_notify_persistent_group_removed(wpa_s, s);
|
|
wpa_config_remove_network(wpa_s->conf, s->id);
|
|
save_config = 1;
|
|
continue;
|
|
}
|
|
|
|
for (i = 0; i < s->num_p2p_clients; i++) {
|
|
if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
|
|
peer, ETH_ALEN) != 0)
|
|
continue;
|
|
|
|
os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
|
|
s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
|
|
(s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
|
|
break;
|
|
}
|
|
s->num_p2p_clients--;
|
|
save_config = 1;
|
|
}
|
|
|
|
if (save_config)
|
|
p2p_config_write(wpa_s);
|
|
|
|
/* Return TRUE if valid SSID remains */
|
|
return s != NULL;
|
|
}
|
|
|
|
|
|
static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
|
|
const u8 *feat_cap, size_t feat_cap_len)
|
|
{
|
|
static const char pref[] = " feature_cap=";
|
|
int ret;
|
|
|
|
buf[0] = '\0';
|
|
|
|
/*
|
|
* We expect a feature capability to contain at least one byte to be
|
|
* reported. The string buffer provided by the caller function is
|
|
* expected to be big enough to contain all bytes of the attribute for
|
|
* known specifications. This function truncates the reported bytes if
|
|
* the feature capability data exceeds the string buffer size.
|
|
*/
|
|
if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
|
|
return;
|
|
|
|
os_memcpy(buf, pref, sizeof(pref));
|
|
ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
|
|
buf_len - sizeof(pref) + 1,
|
|
feat_cap, feat_cap_len);
|
|
|
|
if (ret != (2 * (int) feat_cap_len))
|
|
wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
|
|
}
|
|
|
|
|
|
static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
|
|
const u8 *adv_mac, const u8 *ses_mac,
|
|
const u8 *grp_mac, u32 adv_id, u32 ses_id,
|
|
u8 conncap, int passwd_id,
|
|
const u8 *persist_ssid,
|
|
size_t persist_ssid_size, int response_done,
|
|
int prov_start, const char *session_info,
|
|
const u8 *feat_cap, size_t feat_cap_len,
|
|
unsigned int freq,
|
|
const u8 *group_ssid, size_t group_ssid_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
u8 mac[ETH_ALEN];
|
|
struct wpa_ssid *persistent_go, *stale, *s = NULL;
|
|
int save_config = 0;
|
|
struct wpa_supplicant *go_wpa_s;
|
|
char feat_cap_str[256];
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
os_memset(mac, 0, ETH_ALEN);
|
|
if (!adv_mac)
|
|
adv_mac = mac;
|
|
if (!ses_mac)
|
|
ses_mac = mac;
|
|
if (!grp_mac)
|
|
grp_mac = mac;
|
|
|
|
wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
|
|
feat_cap, feat_cap_len);
|
|
|
|
if (prov_start) {
|
|
if (session_info == NULL) {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_P2PS_PROVISION_START MACSTR
|
|
" adv_id=%x conncap=%x"
|
|
" adv_mac=" MACSTR
|
|
" session=%x mac=" MACSTR
|
|
" dev_passwd_id=%d%s",
|
|
MAC2STR(dev), adv_id, conncap,
|
|
MAC2STR(adv_mac),
|
|
ses_id, MAC2STR(ses_mac),
|
|
passwd_id, feat_cap_str);
|
|
} else {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_P2PS_PROVISION_START MACSTR
|
|
" adv_id=%x conncap=%x"
|
|
" adv_mac=" MACSTR
|
|
" session=%x mac=" MACSTR
|
|
" dev_passwd_id=%d info='%s'%s",
|
|
MAC2STR(dev), adv_id, conncap,
|
|
MAC2STR(adv_mac),
|
|
ses_id, MAC2STR(ses_mac),
|
|
passwd_id, session_info, feat_cap_str);
|
|
}
|
|
return;
|
|
}
|
|
|
|
go_wpa_s = wpas_p2p_get_go_group(wpa_s);
|
|
persistent_go = wpas_p2p_get_persistent_go(wpa_s);
|
|
|
|
if (status && status != P2P_SC_SUCCESS_DEFERRED) {
|
|
if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
|
|
wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
|
|
|
|
if (persistent_go && !persistent_go->num_p2p_clients) {
|
|
/* remove empty persistent GO */
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Remove empty persistent group id=%d",
|
|
persistent_go->id);
|
|
wpas_notify_persistent_group_removed(wpa_s,
|
|
persistent_go);
|
|
wpa_config_remove_network(wpa_s->conf,
|
|
persistent_go->id);
|
|
}
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_P2PS_PROVISION_DONE MACSTR
|
|
" status=%d"
|
|
" adv_id=%x adv_mac=" MACSTR
|
|
" session=%x mac=" MACSTR "%s",
|
|
MAC2STR(dev), status,
|
|
adv_id, MAC2STR(adv_mac),
|
|
ses_id, MAC2STR(ses_mac), feat_cap_str);
|
|
return;
|
|
}
|
|
|
|
/* Clean up stale persistent groups with this device */
|
|
if (persist_ssid && persist_ssid_size)
|
|
s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
|
|
persist_ssid_size);
|
|
|
|
if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
|
|
is_zero_ether_addr(grp_mac)) {
|
|
wpa_dbg(wpa_s, MSG_ERROR,
|
|
"P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
|
|
return;
|
|
}
|
|
|
|
for (;;) {
|
|
stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
|
|
if (!stale)
|
|
break;
|
|
|
|
if (s && s->ssid_len == stale->ssid_len &&
|
|
os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
|
|
os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
|
|
break;
|
|
|
|
/* Remove stale persistent group */
|
|
if (stale->mode != WPAS_MODE_P2P_GO ||
|
|
stale->num_p2p_clients <= 1) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Remove stale persistent group id=%d",
|
|
stale->id);
|
|
wpas_notify_persistent_group_removed(wpa_s, stale);
|
|
wpa_config_remove_network(wpa_s->conf, stale->id);
|
|
} else {
|
|
size_t i;
|
|
|
|
for (i = 0; i < stale->num_p2p_clients; i++) {
|
|
if (os_memcmp(stale->p2p_client_list +
|
|
i * ETH_ALEN,
|
|
dev, ETH_ALEN) == 0) {
|
|
os_memmove(stale->p2p_client_list +
|
|
i * ETH_ALEN,
|
|
stale->p2p_client_list +
|
|
(i + 1) * ETH_ALEN,
|
|
(stale->num_p2p_clients -
|
|
i - 1) * ETH_ALEN);
|
|
break;
|
|
}
|
|
}
|
|
stale->num_p2p_clients--;
|
|
}
|
|
save_config = 1;
|
|
}
|
|
|
|
if (save_config)
|
|
p2p_config_write(wpa_s);
|
|
|
|
if (s) {
|
|
if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
|
|
wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
|
|
|
|
if (persistent_go && s != persistent_go &&
|
|
!persistent_go->num_p2p_clients) {
|
|
/* remove empty persistent GO */
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Remove empty persistent group id=%d",
|
|
persistent_go->id);
|
|
wpas_notify_persistent_group_removed(wpa_s,
|
|
persistent_go);
|
|
wpa_config_remove_network(wpa_s->conf,
|
|
persistent_go->id);
|
|
/* Save config */
|
|
}
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_P2PS_PROVISION_DONE MACSTR
|
|
" status=%d"
|
|
" adv_id=%x adv_mac=" MACSTR
|
|
" session=%x mac=" MACSTR
|
|
" persist=%d%s",
|
|
MAC2STR(dev), status,
|
|
adv_id, MAC2STR(adv_mac),
|
|
ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
|
|
return;
|
|
}
|
|
|
|
wpa_s->global->pending_p2ps_group = 0;
|
|
wpa_s->global->pending_p2ps_group_freq = 0;
|
|
|
|
if (conncap == P2PS_SETUP_GROUP_OWNER) {
|
|
/*
|
|
* We need to copy the interface name. Simply saving a
|
|
* pointer isn't enough, since if we use pending_interface_name
|
|
* it will be overwritten when the group is added.
|
|
*/
|
|
char go_ifname[100];
|
|
|
|
go_ifname[0] = '\0';
|
|
if (!go_wpa_s) {
|
|
if (!response_done) {
|
|
wpa_s->global->pending_p2ps_group = 1;
|
|
wpa_s->global->pending_p2ps_group_freq = freq;
|
|
}
|
|
|
|
if (!wpas_p2p_create_iface(wpa_s))
|
|
os_memcpy(go_ifname, wpa_s->ifname,
|
|
sizeof(go_ifname));
|
|
else if (wpa_s->pending_interface_name[0])
|
|
os_memcpy(go_ifname,
|
|
wpa_s->pending_interface_name,
|
|
sizeof(go_ifname));
|
|
|
|
if (!go_ifname[0]) {
|
|
wpas_p2ps_prov_complete(
|
|
wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
|
|
dev, adv_mac, ses_mac,
|
|
grp_mac, adv_id, ses_id, 0, 0,
|
|
NULL, 0, 0, 0, NULL, NULL, 0, 0,
|
|
NULL, 0);
|
|
return;
|
|
}
|
|
|
|
/* If PD Resp complete, start up the GO */
|
|
if (response_done && persistent_go) {
|
|
wpas_p2p_group_add_persistent(
|
|
wpa_s, persistent_go,
|
|
0, 0, freq, 0, 0, 0, 0, 0, 0, NULL,
|
|
persistent_go->mode ==
|
|
WPAS_MODE_P2P_GO ?
|
|
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
|
|
0, 0);
|
|
} else if (response_done) {
|
|
wpas_p2p_group_add(wpa_s, 1, freq,
|
|
0, 0, 0, 0, 0, 0);
|
|
}
|
|
|
|
if (passwd_id == DEV_PW_P2PS_DEFAULT) {
|
|
os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
|
|
ETH_ALEN);
|
|
wpa_s->p2ps_method_config_any = 1;
|
|
}
|
|
} else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
|
|
os_memcpy(go_ifname, go_wpa_s->ifname,
|
|
sizeof(go_ifname));
|
|
|
|
if (is_zero_ether_addr(grp_mac)) {
|
|
wpa_dbg(go_wpa_s, MSG_DEBUG,
|
|
"P2P: Setting PIN-1 for ANY");
|
|
wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
|
|
"12345670", NULL, 0,
|
|
0);
|
|
} else {
|
|
wpa_dbg(go_wpa_s, MSG_DEBUG,
|
|
"P2P: Setting PIN-1 for " MACSTR,
|
|
MAC2STR(grp_mac));
|
|
wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
|
|
"12345670", NULL, 0,
|
|
0);
|
|
}
|
|
|
|
os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
|
|
wpa_s->p2ps_method_config_any = 1;
|
|
}
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_P2PS_PROVISION_DONE MACSTR
|
|
" status=%d conncap=%x"
|
|
" adv_id=%x adv_mac=" MACSTR
|
|
" session=%x mac=" MACSTR
|
|
" dev_passwd_id=%d go=%s%s",
|
|
MAC2STR(dev), status, conncap,
|
|
adv_id, MAC2STR(adv_mac),
|
|
ses_id, MAC2STR(ses_mac),
|
|
passwd_id, go_ifname, feat_cap_str);
|
|
return;
|
|
}
|
|
|
|
if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
|
|
wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
|
|
|
|
if (persistent_go && !persistent_go->num_p2p_clients) {
|
|
/* remove empty persistent GO */
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Remove empty persistent group id=%d",
|
|
persistent_go->id);
|
|
wpas_notify_persistent_group_removed(wpa_s, persistent_go);
|
|
wpa_config_remove_network(wpa_s->conf, persistent_go->id);
|
|
}
|
|
|
|
if (conncap == P2PS_SETUP_CLIENT) {
|
|
char ssid_hex[32 * 2 + 1];
|
|
|
|
if (group_ssid)
|
|
wpa_snprintf_hex(ssid_hex, sizeof(ssid_hex),
|
|
group_ssid, group_ssid_len);
|
|
else
|
|
ssid_hex[0] = '\0';
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_P2PS_PROVISION_DONE MACSTR
|
|
" status=%d conncap=%x"
|
|
" adv_id=%x adv_mac=" MACSTR
|
|
" session=%x mac=" MACSTR
|
|
" dev_passwd_id=%d join=" MACSTR "%s%s%s",
|
|
MAC2STR(dev), status, conncap,
|
|
adv_id, MAC2STR(adv_mac),
|
|
ses_id, MAC2STR(ses_mac),
|
|
passwd_id, MAC2STR(grp_mac), feat_cap_str,
|
|
group_ssid ? " group_ssid=" : "", ssid_hex);
|
|
} else {
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_P2PS_PROVISION_DONE MACSTR
|
|
" status=%d conncap=%x"
|
|
" adv_id=%x adv_mac=" MACSTR
|
|
" session=%x mac=" MACSTR
|
|
" dev_passwd_id=%d%s",
|
|
MAC2STR(dev), status, conncap,
|
|
adv_id, MAC2STR(adv_mac),
|
|
ses_id, MAC2STR(ses_mac),
|
|
passwd_id, feat_cap_str);
|
|
}
|
|
}
|
|
|
|
|
|
static int _wpas_p2p_in_progress(void *ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
return wpas_p2p_in_progress(wpa_s);
|
|
}
|
|
|
|
|
|
static int wpas_prov_disc_resp_cb(void *ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *persistent_go;
|
|
unsigned int freq;
|
|
|
|
if (!wpa_s->global->pending_p2ps_group)
|
|
return 0;
|
|
|
|
freq = wpa_s->global->pending_p2ps_group_freq;
|
|
wpa_s->global->pending_p2ps_group_freq = 0;
|
|
wpa_s->global->pending_p2ps_group = 0;
|
|
|
|
if (wpas_p2p_get_go_group(wpa_s))
|
|
return 0;
|
|
persistent_go = wpas_p2p_get_persistent_go(wpa_s);
|
|
|
|
if (persistent_go) {
|
|
wpas_p2p_group_add_persistent(
|
|
wpa_s, persistent_go, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
NULL,
|
|
persistent_go->mode == WPAS_MODE_P2P_GO ?
|
|
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
|
|
} else {
|
|
wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
|
|
unsigned int *len,
|
|
unsigned int *freq_list)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
|
|
WPA_IF_P2P_CLIENT, len, freq_list);
|
|
}
|
|
|
|
|
|
int wpas_p2p_mac_setup(struct wpa_supplicant *wpa_s)
|
|
{
|
|
u8 addr[ETH_ALEN] = {0};
|
|
|
|
if (wpa_s->conf->p2p_device_random_mac_addr == 0)
|
|
return 0;
|
|
|
|
if (!wpa_s->conf->ssid) {
|
|
if (random_mac_addr(addr) < 0) {
|
|
wpa_msg(wpa_s, MSG_INFO,
|
|
"Failed to generate random MAC address");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Store generated MAC address. */
|
|
os_memcpy(wpa_s->conf->p2p_device_persistent_mac_addr, addr,
|
|
ETH_ALEN);
|
|
} else {
|
|
/* If there are existing saved groups, restore last MAC address.
|
|
* if there is no last used MAC address, the last one is
|
|
* factory MAC. */
|
|
if (is_zero_ether_addr(
|
|
wpa_s->conf->p2p_device_persistent_mac_addr))
|
|
return 0;
|
|
os_memcpy(addr, wpa_s->conf->p2p_device_persistent_mac_addr,
|
|
ETH_ALEN);
|
|
wpa_msg(wpa_s, MSG_DEBUG, "Restore last used MAC address.");
|
|
}
|
|
|
|
if (wpa_drv_set_mac_addr(wpa_s, addr) < 0) {
|
|
wpa_msg(wpa_s, MSG_INFO,
|
|
"Failed to set random MAC address");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
|
|
wpa_msg(wpa_s, MSG_INFO,
|
|
"Could not update MAC address information");
|
|
return -EINVAL;
|
|
}
|
|
|
|
wpa_msg(wpa_s, MSG_DEBUG, "Using random MAC address " MACSTR,
|
|
MAC2STR(addr));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_init - Initialize P2P module for %wpa_supplicant
|
|
* @global: Pointer to global data from wpa_supplicant_init()
|
|
* @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
|
|
* Returns: 0 on success, -1 on failure
|
|
*/
|
|
int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct p2p_config p2p;
|
|
int i;
|
|
|
|
if (wpa_s->conf->p2p_disabled)
|
|
return 0;
|
|
|
|
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
|
|
return 0;
|
|
|
|
if (global->p2p)
|
|
return 0;
|
|
|
|
if (wpas_p2p_mac_setup(wpa_s) < 0) {
|
|
wpa_msg(wpa_s, MSG_ERROR,
|
|
"Failed to initialize P2P random MAC address.");
|
|
return -1;
|
|
}
|
|
|
|
os_memset(&p2p, 0, sizeof(p2p));
|
|
p2p.cb_ctx = wpa_s;
|
|
p2p.debug_print = wpas_p2p_debug_print;
|
|
p2p.p2p_scan = wpas_p2p_scan;
|
|
p2p.send_action = wpas_send_action;
|
|
p2p.send_action_done = wpas_send_action_done;
|
|
p2p.go_neg_completed = wpas_go_neg_completed;
|
|
p2p.go_neg_req_rx = wpas_go_neg_req_rx;
|
|
p2p.dev_found = wpas_dev_found;
|
|
p2p.dev_lost = wpas_dev_lost;
|
|
p2p.find_stopped = wpas_find_stopped;
|
|
p2p.start_listen = wpas_start_listen;
|
|
p2p.stop_listen = wpas_stop_listen;
|
|
p2p.send_probe_resp = wpas_send_probe_resp;
|
|
p2p.sd_request = wpas_sd_request;
|
|
p2p.sd_response = wpas_sd_response;
|
|
p2p.prov_disc_req = wpas_prov_disc_req;
|
|
p2p.prov_disc_resp = wpas_prov_disc_resp;
|
|
p2p.prov_disc_fail = wpas_prov_disc_fail;
|
|
p2p.invitation_process = wpas_invitation_process;
|
|
p2p.invitation_received = wpas_invitation_received;
|
|
p2p.invitation_result = wpas_invitation_result;
|
|
p2p.get_noa = wpas_get_noa;
|
|
p2p.go_connected = wpas_go_connected;
|
|
p2p.presence_resp = wpas_presence_resp;
|
|
p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
|
|
p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
|
|
p2p.get_persistent_group = wpas_get_persistent_group;
|
|
p2p.get_go_info = wpas_get_go_info;
|
|
p2p.remove_stale_groups = wpas_remove_stale_groups;
|
|
p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
|
|
p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
|
|
p2p.p2ps_group_capability = p2ps_group_capability;
|
|
p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
|
|
p2p.p2p_6ghz_disable = wpa_s->conf->p2p_6ghz_disable;
|
|
|
|
os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
|
|
os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
|
|
p2p.dev_name = wpa_s->conf->device_name;
|
|
p2p.manufacturer = wpa_s->conf->manufacturer;
|
|
p2p.model_name = wpa_s->conf->model_name;
|
|
p2p.model_number = wpa_s->conf->model_number;
|
|
p2p.serial_number = wpa_s->conf->serial_number;
|
|
if (wpa_s->wps) {
|
|
os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
|
|
p2p.config_methods = wpa_s->wps->config_methods;
|
|
}
|
|
|
|
if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels,
|
|
p2p.p2p_6ghz_disable)) {
|
|
wpa_printf(MSG_ERROR,
|
|
"P2P: Failed to configure supported channel list");
|
|
return -1;
|
|
}
|
|
|
|
if (wpa_s->conf->p2p_listen_reg_class &&
|
|
wpa_s->conf->p2p_listen_channel) {
|
|
p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
|
|
p2p.channel = wpa_s->conf->p2p_listen_channel;
|
|
p2p.channel_forced = 1;
|
|
} else {
|
|
/*
|
|
* Pick one of the social channels randomly as the listen
|
|
* channel.
|
|
*/
|
|
if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
|
|
&p2p.channel,
|
|
&global->p2p_go_avoid_freq,
|
|
&global->p2p_disallow_freq) !=
|
|
0) {
|
|
wpa_printf(MSG_INFO,
|
|
"P2P: No social channels supported by the driver - do not enable P2P");
|
|
return 0;
|
|
}
|
|
p2p.channel_forced = 0;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
|
|
p2p.reg_class, p2p.channel);
|
|
|
|
if (wpa_s->conf->p2p_oper_reg_class &&
|
|
wpa_s->conf->p2p_oper_channel) {
|
|
p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
|
|
p2p.op_channel = wpa_s->conf->p2p_oper_channel;
|
|
p2p.cfg_op_channel = 1;
|
|
wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
|
|
"%d:%d", p2p.op_reg_class, p2p.op_channel);
|
|
|
|
} else {
|
|
/*
|
|
* Use random operation channel from 2.4 GHz band social
|
|
* channels (1, 6, 11) or band 60 GHz social channel (2) if no
|
|
* other preference is indicated.
|
|
*/
|
|
if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
|
|
&p2p.op_channel, NULL,
|
|
NULL) != 0) {
|
|
wpa_printf(MSG_INFO,
|
|
"P2P: Failed to select random social channel as operation channel");
|
|
p2p.op_reg_class = 0;
|
|
p2p.op_channel = 0;
|
|
/* This will be overridden during group setup in
|
|
* p2p_prepare_channel(), so allow setup to continue. */
|
|
}
|
|
p2p.cfg_op_channel = 0;
|
|
wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
|
|
"%d:%d", p2p.op_reg_class, p2p.op_channel);
|
|
}
|
|
|
|
if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
|
|
p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
|
|
p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
|
|
}
|
|
|
|
if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
|
|
os_memcpy(p2p.country, wpa_s->conf->country, 2);
|
|
p2p.country[2] = 0x04;
|
|
} else
|
|
os_memcpy(p2p.country, "XX\x04", 3);
|
|
|
|
os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
|
|
WPS_DEV_TYPE_LEN);
|
|
|
|
p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
|
|
os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
|
|
p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
|
|
|
|
p2p.concurrent_operations = !!(wpa_s->drv_flags &
|
|
WPA_DRIVER_FLAGS_P2P_CONCURRENT);
|
|
|
|
p2p.max_peers = 100;
|
|
|
|
if (wpa_s->conf->p2p_ssid_postfix) {
|
|
p2p.ssid_postfix_len =
|
|
os_strlen(wpa_s->conf->p2p_ssid_postfix);
|
|
if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
|
|
p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
|
|
os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
|
|
p2p.ssid_postfix_len);
|
|
}
|
|
|
|
p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
|
|
|
|
p2p.max_listen = wpa_s->max_remain_on_chan;
|
|
|
|
if (wpa_s->conf->p2p_passphrase_len >= 8 &&
|
|
wpa_s->conf->p2p_passphrase_len <= 63)
|
|
p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
|
|
else
|
|
p2p.passphrase_len = 8;
|
|
|
|
global->p2p = p2p_init(&p2p);
|
|
if (global->p2p == NULL)
|
|
return -1;
|
|
global->p2p_init_wpa_s = wpa_s;
|
|
|
|
for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
|
|
if (wpa_s->conf->wps_vendor_ext[i] == NULL)
|
|
continue;
|
|
p2p_add_wps_vendor_extension(
|
|
global->p2p, wpa_s->conf->wps_vendor_ext[i]);
|
|
}
|
|
|
|
p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_deinit - Deinitialize per-interface P2P data
|
|
* @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
|
|
*
|
|
* This function deinitialize per-interface P2P data.
|
|
*/
|
|
void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->driver && wpa_s->drv_priv)
|
|
wpa_drv_probe_req_report(wpa_s, 0);
|
|
|
|
if (wpa_s->go_params) {
|
|
/* Clear any stored provisioning info */
|
|
p2p_clear_provisioning_info(
|
|
wpa_s->global->p2p,
|
|
wpa_s->go_params->peer_device_addr);
|
|
}
|
|
|
|
os_free(wpa_s->go_params);
|
|
wpa_s->go_params = NULL;
|
|
eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
|
|
wpas_p2p_listen_work_done(wpa_s);
|
|
if (wpa_s->p2p_send_action_work) {
|
|
os_free(wpa_s->p2p_send_action_work->ctx);
|
|
radio_work_done(wpa_s->p2p_send_action_work);
|
|
wpa_s->p2p_send_action_work = NULL;
|
|
}
|
|
eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
|
|
|
|
wpabuf_free(wpa_s->p2p_oob_dev_pw);
|
|
wpa_s->p2p_oob_dev_pw = NULL;
|
|
|
|
os_free(wpa_s->p2p_group_common_freqs);
|
|
wpa_s->p2p_group_common_freqs = NULL;
|
|
wpa_s->p2p_group_common_freqs_num = 0;
|
|
|
|
/* TODO: remove group interface from the driver if this wpa_s instance
|
|
* is on top of a P2P group interface */
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_deinit_global - Deinitialize global P2P module
|
|
* @global: Pointer to global data from wpa_supplicant_init()
|
|
*
|
|
* This function deinitializes the global (per device) P2P module.
|
|
*/
|
|
static void wpas_p2p_deinit_global(struct wpa_global *global)
|
|
{
|
|
struct wpa_supplicant *wpa_s, *tmp;
|
|
|
|
wpa_s = global->ifaces;
|
|
|
|
wpas_p2p_service_flush(global->p2p_init_wpa_s);
|
|
|
|
/* Remove remaining P2P group interfaces */
|
|
while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
|
|
wpa_s = wpa_s->next;
|
|
while (wpa_s) {
|
|
tmp = global->ifaces;
|
|
while (tmp &&
|
|
(tmp == wpa_s ||
|
|
tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
|
|
tmp = tmp->next;
|
|
}
|
|
if (tmp == NULL)
|
|
break;
|
|
/* Disconnect from the P2P group and deinit the interface */
|
|
wpas_p2p_disconnect(tmp);
|
|
}
|
|
|
|
/*
|
|
* Deinit GO data on any possibly remaining interface (if main
|
|
* interface is used as GO).
|
|
*/
|
|
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (wpa_s->ap_iface)
|
|
wpas_p2p_group_deinit(wpa_s);
|
|
}
|
|
|
|
p2p_deinit(global->p2p);
|
|
global->p2p = NULL;
|
|
global->p2p_init_wpa_s = NULL;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->conf->p2p_no_group_iface)
|
|
return 0; /* separate interface disabled per configuration */
|
|
if (wpa_s->drv_flags &
|
|
(WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
|
|
WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
|
|
return 1; /* P2P group requires a new interface in every case
|
|
*/
|
|
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
|
|
return 0; /* driver does not support concurrent operations */
|
|
if (wpa_s->global->ifaces->next)
|
|
return 1; /* more that one interface already in use */
|
|
if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
|
|
return 1; /* this interface is already in use */
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer_addr,
|
|
enum p2p_wps_method wps_method,
|
|
int go_intent, const u8 *own_interface_addr,
|
|
unsigned int force_freq, int persistent_group,
|
|
struct wpa_ssid *ssid, unsigned int pref_freq)
|
|
{
|
|
if (persistent_group && wpa_s->conf->persistent_reconnect)
|
|
persistent_group = 2;
|
|
|
|
/*
|
|
* Increase GO config timeout if HT40 is used since it takes some time
|
|
* to scan channels for coex purposes before the BSS can be started.
|
|
*/
|
|
p2p_set_config_timeout(wpa_s->global->p2p,
|
|
wpa_s->p2p_go_ht40 ? 255 : 100, 20);
|
|
|
|
return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
|
|
go_intent, own_interface_addr, force_freq,
|
|
persistent_group, ssid ? ssid->ssid : NULL,
|
|
ssid ? ssid->ssid_len : 0,
|
|
wpa_s->p2p_pd_before_go_neg, pref_freq,
|
|
wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
|
|
0);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer_addr,
|
|
enum p2p_wps_method wps_method,
|
|
int go_intent, const u8 *own_interface_addr,
|
|
unsigned int force_freq, int persistent_group,
|
|
struct wpa_ssid *ssid, unsigned int pref_freq)
|
|
{
|
|
if (persistent_group && wpa_s->conf->persistent_reconnect)
|
|
persistent_group = 2;
|
|
|
|
return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
|
|
go_intent, own_interface_addr, force_freq,
|
|
persistent_group, ssid ? ssid->ssid : NULL,
|
|
ssid ? ssid->ssid_len : 0, pref_freq,
|
|
wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
|
|
0);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpa_s->p2p_join_scan_count++;
|
|
wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
|
|
wpa_s->p2p_join_scan_count);
|
|
if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
|
|
" for join operationg - stop join attempt",
|
|
MAC2STR(wpa_s->pending_join_iface_addr));
|
|
eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
|
|
if (wpa_s->p2p_auto_pd) {
|
|
wpa_s->p2p_auto_pd = 0;
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_PROV_DISC_FAILURE
|
|
" p2p_dev_addr=" MACSTR " status=N/A",
|
|
MAC2STR(wpa_s->pending_join_dev_addr));
|
|
return;
|
|
}
|
|
if (wpa_s->p2p_fallback_to_go_neg) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Join operation failed - fall back to GO Negotiation");
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_FALLBACK_TO_GO_NEG
|
|
"reason=join-failed");
|
|
wpas_p2p_fallback_to_go_neg(wpa_s, 0);
|
|
return;
|
|
}
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_GROUP_FORMATION_FAILURE);
|
|
wpas_notify_p2p_group_formation_failure(wpa_s, "");
|
|
}
|
|
}
|
|
|
|
|
|
static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
|
|
{
|
|
int res;
|
|
unsigned int num, i;
|
|
struct wpa_used_freq_data *freqs;
|
|
|
|
if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
|
|
/* Multiple channels are supported and not all are in use */
|
|
return 0;
|
|
}
|
|
|
|
freqs = os_calloc(wpa_s->num_multichan_concurrent,
|
|
sizeof(struct wpa_used_freq_data));
|
|
if (!freqs)
|
|
return 1;
|
|
|
|
num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
|
|
wpa_s->num_multichan_concurrent);
|
|
|
|
for (i = 0; i < num; i++) {
|
|
if (freqs[i].freq == freq) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
|
|
freq);
|
|
res = 0;
|
|
goto exit_free;
|
|
}
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
|
|
res = 1;
|
|
|
|
exit_free:
|
|
os_free(freqs);
|
|
return res;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer_dev_addr)
|
|
{
|
|
struct wpa_bss *bss;
|
|
int updated;
|
|
|
|
bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
|
|
if (bss == NULL)
|
|
return -1;
|
|
if (bss->last_update_idx < wpa_s->bss_update_idx) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
|
|
"last scan");
|
|
return 0;
|
|
}
|
|
|
|
updated = os_reltime_before(&wpa_s->p2p_auto_started,
|
|
&bss->last_update);
|
|
wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
|
|
"%ld.%06ld (%supdated in last scan)",
|
|
bss->last_update.sec, bss->last_update.usec,
|
|
updated ? "": "not ");
|
|
|
|
return updated;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
|
|
struct wpa_scan_results *scan_res)
|
|
{
|
|
struct wpa_bss *bss = NULL;
|
|
int freq;
|
|
u8 iface_addr[ETH_ALEN];
|
|
|
|
eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
|
|
|
|
if (wpa_s->global->p2p_disabled)
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
|
|
scan_res ? (int) scan_res->num : -1,
|
|
wpa_s->p2p_auto_join ? "auto_" : "");
|
|
|
|
if (scan_res)
|
|
wpas_p2p_scan_res_handler(wpa_s, scan_res);
|
|
|
|
if (wpa_s->p2p_auto_pd) {
|
|
int join = wpas_p2p_peer_go(wpa_s,
|
|
wpa_s->pending_join_dev_addr);
|
|
if (join == 0 &&
|
|
wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
|
|
wpa_s->auto_pd_scan_retry++;
|
|
bss = wpa_bss_get_bssid_latest(
|
|
wpa_s, wpa_s->pending_join_dev_addr);
|
|
if (bss) {
|
|
freq = bss->freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
|
|
"the peer " MACSTR " at %d MHz",
|
|
wpa_s->auto_pd_scan_retry,
|
|
MAC2STR(wpa_s->
|
|
pending_join_dev_addr),
|
|
freq);
|
|
wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (join < 0)
|
|
join = 0;
|
|
|
|
wpa_s->p2p_auto_pd = 0;
|
|
wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
|
|
wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
|
|
MAC2STR(wpa_s->pending_join_dev_addr), join);
|
|
if (p2p_prov_disc_req(wpa_s->global->p2p,
|
|
wpa_s->pending_join_dev_addr, NULL,
|
|
wpa_s->pending_pd_config_methods, join,
|
|
0, wpa_s->user_initiated_pd) < 0) {
|
|
wpa_s->p2p_auto_pd = 0;
|
|
wpa_msg_global(wpa_s, MSG_INFO,
|
|
P2P_EVENT_PROV_DISC_FAILURE
|
|
" p2p_dev_addr=" MACSTR " status=N/A",
|
|
MAC2STR(wpa_s->pending_join_dev_addr));
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->p2p_auto_join) {
|
|
int join = wpas_p2p_peer_go(wpa_s,
|
|
wpa_s->pending_join_dev_addr);
|
|
if (join < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
|
|
"running a GO -> use GO Negotiation");
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_FALLBACK_TO_GO_NEG
|
|
"reason=peer-not-running-GO");
|
|
wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
|
|
wpa_s->p2p_pin, wpa_s->p2p_wps_method,
|
|
wpa_s->p2p_persistent_group, 0, 0, 0,
|
|
wpa_s->p2p_go_intent,
|
|
wpa_s->p2p_connect_freq,
|
|
wpa_s->p2p_go_vht_center_freq2,
|
|
wpa_s->p2p_persistent_id,
|
|
wpa_s->p2p_pd_before_go_neg,
|
|
wpa_s->p2p_go_ht40,
|
|
wpa_s->p2p_go_vht,
|
|
wpa_s->p2p_go_max_oper_chwidth,
|
|
wpa_s->p2p_go_he,
|
|
wpa_s->p2p_go_edmg,
|
|
NULL, 0);
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
|
|
"try to join the group", join ? "" :
|
|
" in older scan");
|
|
if (!join) {
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
|
|
wpa_s->p2p_fallback_to_go_neg = 1;
|
|
}
|
|
}
|
|
|
|
freq = p2p_get_oper_freq(wpa_s->global->p2p,
|
|
wpa_s->pending_join_iface_addr);
|
|
if (freq < 0 &&
|
|
p2p_get_interface_addr(wpa_s->global->p2p,
|
|
wpa_s->pending_join_dev_addr,
|
|
iface_addr) == 0 &&
|
|
os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
|
|
&& !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
|
|
"address for join from " MACSTR " to " MACSTR
|
|
" based on newly discovered P2P peer entry",
|
|
MAC2STR(wpa_s->pending_join_iface_addr),
|
|
MAC2STR(iface_addr));
|
|
os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
|
|
ETH_ALEN);
|
|
|
|
freq = p2p_get_oper_freq(wpa_s->global->p2p,
|
|
wpa_s->pending_join_iface_addr);
|
|
}
|
|
if (freq >= 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
|
|
"from P2P peer table: %d MHz", freq);
|
|
}
|
|
if (wpa_s->p2p_join_ssid_len) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
|
|
MACSTR " and SSID %s",
|
|
MAC2STR(wpa_s->pending_join_iface_addr),
|
|
wpa_ssid_txt(wpa_s->p2p_join_ssid,
|
|
wpa_s->p2p_join_ssid_len));
|
|
bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
|
|
wpa_s->p2p_join_ssid,
|
|
wpa_s->p2p_join_ssid_len);
|
|
} else if (!bss) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
|
|
MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
|
|
bss = wpa_bss_get_bssid_latest(wpa_s,
|
|
wpa_s->pending_join_iface_addr);
|
|
}
|
|
if (bss) {
|
|
u8 dev_addr[ETH_ALEN];
|
|
|
|
freq = bss->freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
|
|
"from BSS table: %d MHz (SSID %s)", freq,
|
|
wpa_ssid_txt(bss->ssid, bss->ssid_len));
|
|
if (p2p_parse_dev_addr(wpa_bss_ie_ptr(bss), bss->ie_len,
|
|
dev_addr) == 0 &&
|
|
os_memcmp(wpa_s->pending_join_dev_addr,
|
|
wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
|
|
os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
|
|
ETH_ALEN) != 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
|
|
MAC2STR(dev_addr),
|
|
MAC2STR(wpa_s->pending_join_dev_addr));
|
|
os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
|
|
ETH_ALEN);
|
|
}
|
|
}
|
|
if (freq > 0) {
|
|
u16 method;
|
|
|
|
if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_GROUP_FORMATION_FAILURE
|
|
"reason=FREQ_CONFLICT");
|
|
wpas_notify_p2p_group_formation_failure(
|
|
wpa_s, "FREQ_CONFLICT");
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
|
|
"prior to joining an existing group (GO " MACSTR
|
|
" freq=%u MHz)",
|
|
MAC2STR(wpa_s->pending_join_dev_addr), freq);
|
|
wpa_s->pending_pd_before_join = 1;
|
|
|
|
switch (wpa_s->pending_join_wps_method) {
|
|
case WPS_PIN_DISPLAY:
|
|
method = WPS_CONFIG_KEYPAD;
|
|
break;
|
|
case WPS_PIN_KEYPAD:
|
|
method = WPS_CONFIG_DISPLAY;
|
|
break;
|
|
case WPS_PBC:
|
|
method = WPS_CONFIG_PUSHBUTTON;
|
|
break;
|
|
case WPS_P2PS:
|
|
method = WPS_CONFIG_P2PS;
|
|
break;
|
|
default:
|
|
method = 0;
|
|
break;
|
|
}
|
|
|
|
if ((p2p_get_provisioning_info(wpa_s->global->p2p,
|
|
wpa_s->pending_join_dev_addr) ==
|
|
method)) {
|
|
/*
|
|
* We have already performed provision discovery for
|
|
* joining the group. Proceed directly to join
|
|
* operation without duplicated provision discovery. */
|
|
wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
|
|
"with " MACSTR " already done - proceed to "
|
|
"join",
|
|
MAC2STR(wpa_s->pending_join_dev_addr));
|
|
wpa_s->pending_pd_before_join = 0;
|
|
goto start;
|
|
}
|
|
|
|
if (p2p_prov_disc_req(wpa_s->global->p2p,
|
|
wpa_s->pending_join_dev_addr,
|
|
NULL, method, 1,
|
|
freq, wpa_s->user_initiated_pd) < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
|
|
"Discovery Request before joining an "
|
|
"existing group");
|
|
wpa_s->pending_pd_before_join = 0;
|
|
goto start;
|
|
}
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
|
|
eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
|
|
eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
|
|
wpas_p2p_check_join_scan_limit(wpa_s);
|
|
return;
|
|
|
|
start:
|
|
/* Start join operation immediately */
|
|
wpas_p2p_join_start(wpa_s, 0, wpa_s->p2p_join_ssid,
|
|
wpa_s->p2p_join_ssid_len);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
|
|
const u8 *ssid, size_t ssid_len)
|
|
{
|
|
int ret;
|
|
struct wpa_driver_scan_params params;
|
|
struct wpabuf *wps_ie, *ies;
|
|
size_t ielen;
|
|
int freqs[2] = { 0, 0 };
|
|
unsigned int bands;
|
|
|
|
os_memset(¶ms, 0, sizeof(params));
|
|
|
|
/* P2P Wildcard SSID */
|
|
params.num_ssids = 1;
|
|
if (ssid && ssid_len) {
|
|
params.ssids[0].ssid = ssid;
|
|
params.ssids[0].ssid_len = ssid_len;
|
|
os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
|
|
wpa_s->p2p_join_ssid_len = ssid_len;
|
|
} else {
|
|
params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
|
|
params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
|
|
wpa_s->p2p_join_ssid_len = 0;
|
|
}
|
|
|
|
wpa_s->wps->dev.p2p = 1;
|
|
wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
|
|
wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
|
|
NULL);
|
|
if (wps_ie == NULL) {
|
|
wpas_p2p_scan_res_join(wpa_s, NULL);
|
|
return;
|
|
}
|
|
|
|
if (!freq) {
|
|
int oper_freq;
|
|
/*
|
|
* If freq is not provided, check the operating freq of the GO
|
|
* and use a single channel scan on if possible.
|
|
*/
|
|
oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
|
|
wpa_s->pending_join_iface_addr);
|
|
if (oper_freq > 0)
|
|
freq = oper_freq;
|
|
}
|
|
if (freq > 0) {
|
|
freqs[0] = freq;
|
|
params.freqs = freqs;
|
|
} else if (wpa_s->conf->p2p_6ghz_disable) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: 6 GHz disabled - update the scan frequency list");
|
|
wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211G,
|
|
¶ms);
|
|
wpas_p2p_add_scan_freq_list(wpa_s, HOSTAPD_MODE_IEEE80211A,
|
|
¶ms);
|
|
}
|
|
|
|
ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
|
|
ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
|
|
if (ies == NULL) {
|
|
wpabuf_free(wps_ie);
|
|
wpas_p2p_scan_res_join(wpa_s, NULL);
|
|
return;
|
|
}
|
|
wpabuf_put_buf(ies, wps_ie);
|
|
wpabuf_free(wps_ie);
|
|
|
|
bands = wpas_get_bands(wpa_s, freqs);
|
|
p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
|
|
|
|
params.p2p_probe = 1;
|
|
params.extra_ies = wpabuf_head(ies);
|
|
params.extra_ies_len = wpabuf_len(ies);
|
|
|
|
if (wpa_s->clear_driver_scan_cache) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Request driver to clear scan cache due to local BSS flush");
|
|
params.only_new_results = 1;
|
|
}
|
|
|
|
/*
|
|
* Run a scan to update BSS table and start Provision Discovery once
|
|
* the new scan results become available.
|
|
*/
|
|
ret = wpa_drv_scan(wpa_s, ¶ms);
|
|
if (wpa_s->conf->p2p_6ghz_disable && params.freqs != freqs)
|
|
os_free(params.freqs);
|
|
if (!ret) {
|
|
os_get_reltime(&wpa_s->scan_trigger_time);
|
|
wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
|
|
wpa_s->own_scan_requested = 1;
|
|
wpa_s->clear_driver_scan_cache = 0;
|
|
}
|
|
|
|
wpabuf_free(ies);
|
|
|
|
if (ret) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
|
|
"try again later");
|
|
eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
|
|
eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
|
|
wpas_p2p_check_join_scan_limit(wpa_s);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
|
|
const u8 *dev_addr, enum p2p_wps_method wps_method,
|
|
int auto_join, int op_freq,
|
|
const u8 *ssid, size_t ssid_len)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
|
|
MACSTR " dev " MACSTR " op_freq=%d)%s",
|
|
MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
|
|
auto_join ? " (auto_join)" : "");
|
|
if (ssid && ssid_len) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
|
|
wpa_ssid_txt(ssid, ssid_len));
|
|
}
|
|
|
|
wpa_s->p2p_auto_pd = 0;
|
|
wpa_s->p2p_auto_join = !!auto_join;
|
|
os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
|
|
os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
|
|
wpa_s->pending_join_wps_method = wps_method;
|
|
|
|
/* Make sure we are not running find during connection establishment */
|
|
wpas_p2p_stop_find(wpa_s);
|
|
|
|
wpa_s->p2p_join_scan_count = 0;
|
|
wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
|
|
const u8 *ssid, size_t ssid_len)
|
|
{
|
|
struct wpa_supplicant *group;
|
|
struct p2p_go_neg_results res;
|
|
struct wpa_bss *bss;
|
|
|
|
group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
|
|
if (group == NULL)
|
|
return -1;
|
|
if (group != wpa_s) {
|
|
os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
|
|
sizeof(group->p2p_pin));
|
|
group->p2p_wps_method = wpa_s->p2p_wps_method;
|
|
}
|
|
|
|
/*
|
|
* Need to mark the current interface for p2p_group_formation
|
|
* when a separate group interface is not used. This is needed
|
|
* to allow p2p_cancel stop a pending p2p_connect-join.
|
|
* wpas_p2p_init_group_interface() addresses this for the case
|
|
* where a separate group interface is used.
|
|
*/
|
|
if (group == wpa_s->parent)
|
|
wpa_s->global->p2p_group_formation = group;
|
|
|
|
group->p2p_in_provisioning = 1;
|
|
group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
|
|
|
|
os_memset(&res, 0, sizeof(res));
|
|
os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
|
|
os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
|
|
ETH_ALEN);
|
|
res.wps_method = wpa_s->pending_join_wps_method;
|
|
if (freq && ssid && ssid_len) {
|
|
res.freq = freq;
|
|
res.ssid_len = ssid_len;
|
|
os_memcpy(res.ssid, ssid, ssid_len);
|
|
} else {
|
|
if (ssid && ssid_len) {
|
|
bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
|
|
ssid, ssid_len);
|
|
} else {
|
|
bss = wpa_bss_get_bssid_latest(
|
|
wpa_s, wpa_s->pending_join_iface_addr);
|
|
}
|
|
if (bss) {
|
|
res.freq = bss->freq;
|
|
res.ssid_len = bss->ssid_len;
|
|
os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
|
|
wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
|
|
bss->freq,
|
|
wpa_ssid_txt(bss->ssid, bss->ssid_len));
|
|
} else if (ssid && ssid_len) {
|
|
res.ssid_len = ssid_len;
|
|
os_memcpy(res.ssid, ssid, ssid_len);
|
|
wpa_printf(MSG_DEBUG, "P2P: Join target GO (SSID %s)",
|
|
wpa_ssid_txt(ssid, ssid_len));
|
|
}
|
|
}
|
|
|
|
if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
|
|
"starting client");
|
|
wpa_drv_cancel_remain_on_channel(wpa_s);
|
|
wpa_s->off_channel_freq = 0;
|
|
wpa_s->roc_waiting_drv_freq = 0;
|
|
}
|
|
wpas_start_wps_enrollee(group, &res);
|
|
|
|
/*
|
|
* Allow a longer timeout for join-a-running-group than normal 15
|
|
* second group formation timeout since the GO may not have authorized
|
|
* our connection yet.
|
|
*/
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
|
|
eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
|
|
wpa_s, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
|
|
int *force_freq, int *pref_freq, int go,
|
|
unsigned int *pref_freq_list,
|
|
unsigned int *num_pref_freq)
|
|
{
|
|
struct wpa_used_freq_data *freqs;
|
|
int res, best_freq, num_unused;
|
|
unsigned int freq_in_use = 0, num, i, max_pref_freq;
|
|
|
|
max_pref_freq = *num_pref_freq;
|
|
*num_pref_freq = 0;
|
|
|
|
freqs = os_calloc(wpa_s->num_multichan_concurrent,
|
|
sizeof(struct wpa_used_freq_data));
|
|
if (!freqs)
|
|
return -1;
|
|
|
|
num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
|
|
wpa_s->num_multichan_concurrent);
|
|
|
|
/*
|
|
* It is possible that the total number of used frequencies is bigger
|
|
* than the number of frequencies used for P2P, so get the system wide
|
|
* number of unused frequencies.
|
|
*/
|
|
num_unused = wpas_p2p_num_unused_channels(wpa_s);
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
|
|
freq, wpa_s->num_multichan_concurrent, num, num_unused);
|
|
|
|
if (freq > 0) {
|
|
int ret;
|
|
if (go)
|
|
ret = p2p_supported_freq(wpa_s->global->p2p, freq);
|
|
else
|
|
ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
|
|
if (!ret) {
|
|
if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
|
|
ieee80211_is_dfs(freq, wpa_s->hw.modes,
|
|
wpa_s->hw.num_modes)) {
|
|
/*
|
|
* If freq is a DFS channel and DFS is offloaded
|
|
* to the driver, allow P2P GO to use it.
|
|
*/
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
|
|
freq);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: The forced channel (%u MHz) is not supported for P2P uses",
|
|
freq);
|
|
res = -3;
|
|
goto exit_free;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < num; i++) {
|
|
if (freqs[i].freq == freq)
|
|
freq_in_use = 1;
|
|
}
|
|
|
|
if (num_unused <= 0 && !freq_in_use) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
|
|
freq);
|
|
res = -2;
|
|
goto exit_free;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
|
|
"requested channel (%u MHz)", freq);
|
|
*force_freq = freq;
|
|
goto exit_ok;
|
|
}
|
|
|
|
best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
|
|
|
|
if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
|
|
enum wpa_driver_if_type iface_type;
|
|
|
|
if (go)
|
|
iface_type = WPA_IF_P2P_GO;
|
|
else
|
|
iface_type = WPA_IF_P2P_CLIENT;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
|
|
best_freq, go);
|
|
|
|
res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
|
|
&max_pref_freq,
|
|
pref_freq_list);
|
|
if (!res && max_pref_freq > 0) {
|
|
*num_pref_freq = max_pref_freq;
|
|
i = 0;
|
|
while (i < *num_pref_freq &&
|
|
(!p2p_supported_freq(wpa_s->global->p2p,
|
|
pref_freq_list[i]) ||
|
|
wpas_p2p_disallowed_freq(wpa_s->global,
|
|
pref_freq_list[i]))) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: preferred_freq_list[%d]=%d is disallowed",
|
|
i, pref_freq_list[i]);
|
|
i++;
|
|
}
|
|
if (i != *num_pref_freq) {
|
|
best_freq = pref_freq_list[i];
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Using preferred_freq_list[%d]=%d",
|
|
i, best_freq);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: All driver preferred frequencies are disallowed for P2P use");
|
|
*num_pref_freq = 0;
|
|
}
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: No preferred frequency list available");
|
|
}
|
|
}
|
|
|
|
/* We have a candidate frequency to use */
|
|
if (best_freq > 0) {
|
|
if (*pref_freq == 0 && num_unused > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
|
|
best_freq);
|
|
*pref_freq = best_freq;
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
|
|
best_freq);
|
|
*force_freq = best_freq;
|
|
}
|
|
} else if (num_unused > 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Current operating channels are not available for P2P. Try to use another channel");
|
|
*force_freq = 0;
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
|
|
res = -2;
|
|
goto exit_free;
|
|
}
|
|
|
|
exit_ok:
|
|
res = 0;
|
|
exit_free:
|
|
os_free(freqs);
|
|
return res;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_connect - Request P2P Group Formation to be started
|
|
* @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
|
|
* @peer_addr: Address of the peer P2P Device
|
|
* @pin: PIN to use during provisioning or %NULL to indicate PBC mode
|
|
* @persistent_group: Whether to create a persistent group
|
|
* @auto_join: Whether to select join vs. GO Negotiation automatically
|
|
* @join: Whether to join an existing group (as a client) instead of starting
|
|
* Group Owner negotiation; @peer_addr is BSSID in that case
|
|
* @auth: Whether to only authorize the connection instead of doing that and
|
|
* initiating Group Owner negotiation
|
|
* @go_intent: GO Intent or -1 to use default
|
|
* @freq: Frequency for the group or 0 for auto-selection
|
|
* @freq2: Center frequency of segment 1 for the GO operating in VHT 80P80 mode
|
|
* @persistent_id: Persistent group credentials to use for forcing GO
|
|
* parameters or -1 to generate new values (SSID/passphrase)
|
|
* @pd: Whether to send Provision Discovery prior to GO Negotiation as an
|
|
* interoperability workaround when initiating group formation
|
|
* @ht40: Start GO with 40 MHz channel width
|
|
* @vht: Start GO with VHT support
|
|
* @vht_chwidth: Channel width supported by GO operating with VHT support
|
|
* (CHANWIDTH_*).
|
|
* @group_ssid: Specific Group SSID for join or %NULL if not set
|
|
* @group_ssid_len: Length of @group_ssid in octets
|
|
* Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
|
|
* failure, -2 on failure due to channel not currently available,
|
|
* -3 if forced channel is not supported
|
|
*/
|
|
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, unsigned int vht_center_freq2,
|
|
int persistent_id, int pd, int ht40, int vht,
|
|
unsigned int vht_chwidth, int he, int edmg,
|
|
const u8 *group_ssid, size_t group_ssid_len)
|
|
{
|
|
int force_freq = 0, pref_freq = 0;
|
|
int ret = 0, res;
|
|
enum wpa_driver_if_type iftype;
|
|
const u8 *if_addr;
|
|
struct wpa_ssid *ssid = NULL;
|
|
unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
if (persistent_id >= 0) {
|
|
ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
|
|
if (ssid == NULL || ssid->disabled != 2 ||
|
|
ssid->mode != WPAS_MODE_P2P_GO)
|
|
return -1;
|
|
}
|
|
|
|
if (is_6ghz_freq(freq) && wpa_s->conf->p2p_6ghz_disable)
|
|
return -2;
|
|
|
|
os_free(wpa_s->global->add_psk);
|
|
wpa_s->global->add_psk = NULL;
|
|
|
|
wpa_s->global->p2p_fail_on_wps_complete = 0;
|
|
wpa_s->global->pending_p2ps_group = 0;
|
|
wpa_s->global->pending_p2ps_group_freq = 0;
|
|
wpa_s->p2ps_method_config_any = 0;
|
|
|
|
if (go_intent < 0)
|
|
go_intent = wpa_s->conf->p2p_go_intent;
|
|
|
|
if (!auth)
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
|
|
wpa_s->p2p_wps_method = wps_method;
|
|
wpa_s->p2p_persistent_group = !!persistent_group;
|
|
wpa_s->p2p_persistent_id = persistent_id;
|
|
wpa_s->p2p_go_intent = go_intent;
|
|
wpa_s->p2p_connect_freq = freq;
|
|
wpa_s->p2p_fallback_to_go_neg = 0;
|
|
wpa_s->p2p_pd_before_go_neg = !!pd;
|
|
wpa_s->p2p_go_ht40 = !!ht40;
|
|
wpa_s->p2p_go_vht = !!vht;
|
|
wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
|
|
wpa_s->p2p_go_max_oper_chwidth = vht_chwidth;
|
|
wpa_s->p2p_go_he = !!he;
|
|
wpa_s->p2p_go_edmg = !!edmg;
|
|
|
|
if (pin)
|
|
os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
|
|
else if (wps_method == WPS_PIN_DISPLAY) {
|
|
if (wps_generate_pin((unsigned int *) &ret) < 0)
|
|
return -1;
|
|
res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
|
|
"%08d", ret);
|
|
if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
|
|
wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
|
|
wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
|
|
wpa_s->p2p_pin);
|
|
} else if (wps_method == WPS_P2PS) {
|
|
/* Force the P2Ps default PIN to be used */
|
|
os_strlcpy(wpa_s->p2p_pin, "12345670", sizeof(wpa_s->p2p_pin));
|
|
} else
|
|
wpa_s->p2p_pin[0] = '\0';
|
|
|
|
if (join || auto_join) {
|
|
u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
|
|
if (auth) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
|
|
"connect a running group from " MACSTR,
|
|
MAC2STR(peer_addr));
|
|
os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
|
|
return ret;
|
|
}
|
|
os_memcpy(dev_addr, peer_addr, ETH_ALEN);
|
|
if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
|
|
iface_addr) < 0) {
|
|
os_memcpy(iface_addr, peer_addr, ETH_ALEN);
|
|
p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
|
|
dev_addr);
|
|
}
|
|
if (auto_join) {
|
|
os_get_reltime(&wpa_s->p2p_auto_started);
|
|
wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
|
|
"%ld.%06ld",
|
|
wpa_s->p2p_auto_started.sec,
|
|
wpa_s->p2p_auto_started.usec);
|
|
}
|
|
wpa_s->user_initiated_pd = 1;
|
|
if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
|
|
auto_join, freq,
|
|
group_ssid, group_ssid_len) < 0)
|
|
return -1;
|
|
return ret;
|
|
}
|
|
|
|
size = P2P_MAX_PREF_CHANNELS;
|
|
res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
|
|
go_intent == 15, pref_freq_list, &size);
|
|
if (res)
|
|
return res;
|
|
wpas_p2p_set_own_freq_preference(wpa_s,
|
|
force_freq ? force_freq : pref_freq);
|
|
|
|
p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
|
|
|
|
wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
|
|
|
|
if (wpa_s->create_p2p_iface) {
|
|
/* Prepare to add a new interface for the group */
|
|
iftype = WPA_IF_P2P_GROUP;
|
|
if (go_intent == 15)
|
|
iftype = WPA_IF_P2P_GO;
|
|
if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
|
|
"interface for the group");
|
|
return -1;
|
|
}
|
|
|
|
if_addr = wpa_s->pending_interface_addr;
|
|
} else {
|
|
if (wpa_s->p2p_mgmt)
|
|
if_addr = wpa_s->parent->own_addr;
|
|
else
|
|
if_addr = wpa_s->own_addr;
|
|
os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
|
|
}
|
|
|
|
if (auth) {
|
|
if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
|
|
go_intent, if_addr,
|
|
force_freq, persistent_group, ssid,
|
|
pref_freq) < 0)
|
|
return -1;
|
|
return ret;
|
|
}
|
|
|
|
if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
|
|
go_intent, if_addr, force_freq,
|
|
persistent_group, ssid, pref_freq) < 0) {
|
|
if (wpa_s->create_p2p_iface)
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
return -1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
|
|
* @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
|
|
* @freq: Frequency of the channel in MHz
|
|
* @duration: Duration of the stay on the channel in milliseconds
|
|
*
|
|
* This callback is called when the driver indicates that it has started the
|
|
* requested remain-on-channel duration.
|
|
*/
|
|
void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq, unsigned int duration)
|
|
{
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
|
|
wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
|
|
wpa_s->roc_waiting_drv_freq, freq, duration);
|
|
if (wpa_s->off_channel_freq &&
|
|
wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
|
|
p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
|
|
wpa_s->pending_listen_duration);
|
|
wpa_s->pending_listen_freq = 0;
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
|
|
wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
|
|
freq, duration);
|
|
}
|
|
}
|
|
|
|
|
|
int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
|
|
{
|
|
/* Limit maximum Listen state time based on driver limitation. */
|
|
if (timeout > wpa_s->max_remain_on_chan)
|
|
timeout = wpa_s->max_remain_on_chan;
|
|
|
|
return p2p_listen(wpa_s->global->p2p, timeout);
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
|
|
* @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
|
|
* @freq: Frequency of the channel in MHz
|
|
*
|
|
* This callback is called when the driver indicates that a remain-on-channel
|
|
* operation has been completed, i.e., the duration on the requested channel
|
|
* has timed out.
|
|
*/
|
|
void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
|
|
unsigned int freq)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
|
|
"(p2p_long_listen=%d ms pending_action_tx=%p)",
|
|
wpa_s->global->p2p_long_listen,
|
|
offchannel_pending_action_tx(wpa_s));
|
|
wpas_p2p_listen_work_done(wpa_s);
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
if (wpa_s->global->p2p_long_listen > 0)
|
|
wpa_s->global->p2p_long_listen -= wpa_s->max_remain_on_chan;
|
|
if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
|
|
return; /* P2P module started a new operation */
|
|
if (offchannel_pending_action_tx(wpa_s))
|
|
return;
|
|
if (wpa_s->global->p2p_long_listen > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
|
|
wpas_p2p_listen_start(wpa_s, wpa_s->global->p2p_long_listen);
|
|
} else {
|
|
/*
|
|
* When listen duration is over, stop listen & update p2p_state
|
|
* to IDLE.
|
|
*/
|
|
p2p_stop_listen(wpa_s->global->p2p);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_group_remove - Remove a P2P group
|
|
* @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
|
|
* @ifname: Network interface name of the group interface or "*" to remove all
|
|
* groups
|
|
* Returns: 0 on success, -1 on failure
|
|
*
|
|
* This function is used to remove a P2P group. This can be used to disconnect
|
|
* from a group in which the local end is a P2P Client or to end a P2P Group in
|
|
* case the local end is the Group Owner. If a virtual network interface was
|
|
* created for this group, that interface will be removed. Otherwise, only the
|
|
* configured P2P group network will be removed from the interface.
|
|
*/
|
|
int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
|
|
{
|
|
struct wpa_global *global = wpa_s->global;
|
|
struct wpa_supplicant *calling_wpa_s = wpa_s;
|
|
|
|
if (os_strcmp(ifname, "*") == 0) {
|
|
struct wpa_supplicant *prev;
|
|
bool calling_wpa_s_group_removed = false;
|
|
|
|
wpa_s = global->ifaces;
|
|
while (wpa_s) {
|
|
prev = wpa_s;
|
|
wpa_s = wpa_s->next;
|
|
if (prev->p2p_group_interface !=
|
|
NOT_P2P_GROUP_INTERFACE ||
|
|
(prev->current_ssid &&
|
|
prev->current_ssid->p2p_group)) {
|
|
wpas_p2p_disconnect_safely(prev, calling_wpa_s);
|
|
if (prev == calling_wpa_s)
|
|
calling_wpa_s_group_removed = true;
|
|
}
|
|
}
|
|
|
|
if (!calling_wpa_s_group_removed &&
|
|
(calling_wpa_s->p2p_group_interface !=
|
|
NOT_P2P_GROUP_INTERFACE ||
|
|
(calling_wpa_s->current_ssid &&
|
|
calling_wpa_s->current_ssid->p2p_group))) {
|
|
wpa_printf(MSG_DEBUG, "Remove calling_wpa_s P2P group");
|
|
wpas_p2p_disconnect_safely(calling_wpa_s,
|
|
calling_wpa_s);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (os_strcmp(wpa_s->ifname, ifname) == 0)
|
|
break;
|
|
}
|
|
|
|
return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
|
|
{
|
|
unsigned int r;
|
|
|
|
if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
|
|
unsigned int i, size = P2P_MAX_PREF_CHANNELS;
|
|
unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
|
|
int res;
|
|
|
|
res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
|
|
&size, pref_freq_list);
|
|
if (!res && size > 0) {
|
|
i = 0;
|
|
while (i < size &&
|
|
(!p2p_supported_freq(wpa_s->global->p2p,
|
|
pref_freq_list[i]) ||
|
|
wpas_p2p_disallowed_freq(wpa_s->global,
|
|
pref_freq_list[i]))) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: preferred_freq_list[%d]=%d is disallowed",
|
|
i, pref_freq_list[i]);
|
|
i++;
|
|
}
|
|
if (i != size) {
|
|
freq = pref_freq_list[i];
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Using preferred_freq_list[%d]=%d",
|
|
i, freq);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: All driver preferred frequencies are disallowed for P2P use");
|
|
}
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: No preferred frequency list available");
|
|
}
|
|
}
|
|
|
|
if (freq == 2) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
|
|
"band");
|
|
if (wpa_s->best_24_freq > 0 &&
|
|
p2p_supported_freq_go(wpa_s->global->p2p,
|
|
wpa_s->best_24_freq)) {
|
|
freq = wpa_s->best_24_freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
|
|
"channel: %d MHz", freq);
|
|
} else {
|
|
if (os_get_random((u8 *) &r, sizeof(r)) < 0)
|
|
return -1;
|
|
freq = 2412 + (r % 3) * 25;
|
|
wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
|
|
"channel: %d MHz", freq);
|
|
}
|
|
}
|
|
|
|
if (freq == 5) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
|
|
"band");
|
|
if (wpa_s->best_5_freq > 0 &&
|
|
p2p_supported_freq_go(wpa_s->global->p2p,
|
|
wpa_s->best_5_freq)) {
|
|
freq = wpa_s->best_5_freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
|
|
"channel: %d MHz", freq);
|
|
} else {
|
|
if (os_get_random((u8 *) &r, sizeof(r)) < 0)
|
|
return -1;
|
|
freq = 5180 + (r % 4) * 20;
|
|
if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Could not select "
|
|
"5 GHz channel for P2P group");
|
|
return -1;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
|
|
"channel: %d MHz", freq);
|
|
}
|
|
}
|
|
|
|
if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
|
|
if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
|
|
ieee80211_is_dfs(freq, wpa_s->hw.modes,
|
|
wpa_s->hw.num_modes)) {
|
|
/*
|
|
* If freq is a DFS channel and DFS is offloaded to the
|
|
* driver, allow P2P GO to use it.
|
|
*/
|
|
wpa_printf(MSG_DEBUG, "P2P: "
|
|
"%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
|
|
__func__, freq);
|
|
return freq;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
|
|
"(%u MHz) is not supported for P2P uses",
|
|
freq);
|
|
return -1;
|
|
}
|
|
|
|
return freq;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
|
|
const struct p2p_channels *channels,
|
|
int freq)
|
|
{
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
|
|
p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
|
|
freq_included(wpa_s, channels, freq))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *params,
|
|
const struct p2p_channels *channels)
|
|
{
|
|
unsigned int i, r;
|
|
|
|
/* try all channels in operating class 115 */
|
|
for (i = 0; i < 4; i++) {
|
|
params->freq = 5180 + i * 20;
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
|
|
freq_included(wpa_s, channels, params->freq) &&
|
|
p2p_supported_freq(wpa_s->global->p2p, params->freq))
|
|
goto out;
|
|
}
|
|
|
|
/* try all channels in operating class 124 */
|
|
for (i = 0; i < 4; i++) {
|
|
params->freq = 5745 + i * 20;
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
|
|
freq_included(wpa_s, channels, params->freq) &&
|
|
p2p_supported_freq(wpa_s->global->p2p, params->freq))
|
|
goto out;
|
|
}
|
|
|
|
/* try social channel class 180 channel 2 */
|
|
params->freq = 58320 + 1 * 2160;
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
|
|
freq_included(wpa_s, channels, params->freq) &&
|
|
p2p_supported_freq(wpa_s->global->p2p, params->freq))
|
|
goto out;
|
|
|
|
/* try all channels in reg. class 180 */
|
|
for (i = 0; i < 4; i++) {
|
|
params->freq = 58320 + i * 2160;
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
|
|
freq_included(wpa_s, channels, params->freq) &&
|
|
p2p_supported_freq(wpa_s->global->p2p, params->freq))
|
|
goto out;
|
|
}
|
|
|
|
/* try some random selection of the social channels */
|
|
if (os_get_random((u8 *) &r, sizeof(r)) < 0)
|
|
return;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
params->freq = 2412 + ((r + i) % 3) * 25;
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
|
|
goto out;
|
|
}
|
|
|
|
/* try all other channels in operating class 81 */
|
|
for (i = 0; i < 11; i++) {
|
|
params->freq = 2412 + i * 5;
|
|
|
|
/* skip social channels; covered in the previous loop */
|
|
if (params->freq == 2412 ||
|
|
params->freq == 2437 ||
|
|
params->freq == 2462)
|
|
continue;
|
|
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
|
|
goto out;
|
|
}
|
|
|
|
params->freq = 0;
|
|
wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
|
|
return;
|
|
out:
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
|
|
params->freq);
|
|
}
|
|
|
|
|
|
static int wpas_same_band(int freq1, int freq2)
|
|
{
|
|
enum hostapd_hw_mode mode1, mode2;
|
|
u8 chan1, chan2;
|
|
|
|
mode1 = ieee80211_freq_to_chan(freq1, &chan1);
|
|
mode2 = ieee80211_freq_to_chan(freq2, &chan2);
|
|
if (mode1 == NUM_HOSTAPD_MODES)
|
|
return 0;
|
|
return mode1 == mode2;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *params,
|
|
int freq, int vht_center_freq2, int ht40,
|
|
int vht, int max_oper_chwidth, int he,
|
|
int edmg,
|
|
const struct p2p_channels *channels)
|
|
{
|
|
struct wpa_used_freq_data *freqs;
|
|
unsigned int cand;
|
|
unsigned int num, i;
|
|
int ignore_no_freqs = 0;
|
|
int unused_channels = wpas_p2p_num_unused_channels(wpa_s) > 0;
|
|
|
|
os_memset(params, 0, sizeof(*params));
|
|
params->role_go = 1;
|
|
params->ht40 = ht40;
|
|
params->vht = vht;
|
|
params->he = he;
|
|
params->max_oper_chwidth = max_oper_chwidth;
|
|
params->vht_center_freq2 = vht_center_freq2;
|
|
params->edmg = edmg;
|
|
|
|
freqs = os_calloc(wpa_s->num_multichan_concurrent,
|
|
sizeof(struct wpa_used_freq_data));
|
|
if (!freqs)
|
|
return -1;
|
|
|
|
num = get_shared_radio_freqs_data(wpa_s, freqs,
|
|
wpa_s->num_multichan_concurrent);
|
|
|
|
if (wpa_s->current_ssid &&
|
|
wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
|
|
wpa_s->wpa_state == WPA_COMPLETED) {
|
|
wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
|
|
__func__);
|
|
|
|
/*
|
|
* If the frequency selection is done for an active P2P GO that
|
|
* is not sharing a frequency, allow to select a new frequency
|
|
* even if there are no unused frequencies as we are about to
|
|
* move the P2P GO so its frequency can be re-used.
|
|
*/
|
|
for (i = 0; i < num; i++) {
|
|
if (freqs[i].freq == wpa_s->current_ssid->frequency &&
|
|
freqs[i].flags == 0) {
|
|
ignore_no_freqs = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Try to use EDMG channel */
|
|
if (params->edmg) {
|
|
if (wpas_p2p_try_edmg_channel(wpa_s, params) == 0)
|
|
goto success;
|
|
params->edmg = 0;
|
|
}
|
|
|
|
/* try using the forced freq */
|
|
if (freq) {
|
|
if (wpas_p2p_disallowed_freq(wpa_s->global, freq) ||
|
|
!freq_included(wpa_s, channels, freq)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Forced GO freq %d MHz disallowed",
|
|
freq);
|
|
goto fail;
|
|
}
|
|
if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
|
|
if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
|
|
ieee80211_is_dfs(freq, wpa_s->hw.modes,
|
|
wpa_s->hw.num_modes)) {
|
|
/*
|
|
* If freq is a DFS channel and DFS is offloaded
|
|
* to the driver, allow P2P GO to use it.
|
|
*/
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: %s: The forced channel for GO (%u MHz) requires DFS and DFS is offloaded",
|
|
__func__, freq);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: The forced channel for GO (%u MHz) is not supported for P2P uses",
|
|
freq);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < num; i++) {
|
|
if (freqs[i].freq == freq) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: forced freq (%d MHz) is also shared",
|
|
freq);
|
|
params->freq = freq;
|
|
goto success;
|
|
}
|
|
}
|
|
|
|
if (!ignore_no_freqs && !unused_channels) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
|
|
freq);
|
|
goto fail;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: force GO freq (%d MHz) on a free channel",
|
|
freq);
|
|
params->freq = freq;
|
|
goto success;
|
|
}
|
|
|
|
/* consider using one of the shared frequencies */
|
|
if (num &&
|
|
(!wpa_s->conf->p2p_ignore_shared_freq || !unused_channels)) {
|
|
cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Use shared freq (%d MHz) for GO",
|
|
cand);
|
|
params->freq = cand;
|
|
goto success;
|
|
}
|
|
|
|
/* try using one of the shared freqs */
|
|
for (i = 0; i < num; i++) {
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels,
|
|
freqs[i].freq)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Use shared freq (%d MHz) for GO",
|
|
freqs[i].freq);
|
|
params->freq = freqs[i].freq;
|
|
goto success;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!ignore_no_freqs && !unused_channels) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Cannot force GO on any of the channels we are already using");
|
|
goto fail;
|
|
}
|
|
|
|
/* try using the setting from the configuration file */
|
|
if (wpa_s->conf->p2p_oper_reg_class == 81 &&
|
|
wpa_s->conf->p2p_oper_channel >= 1 &&
|
|
wpa_s->conf->p2p_oper_channel <= 11 &&
|
|
wpas_p2p_supported_freq_go(
|
|
wpa_s, channels,
|
|
2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
|
|
params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
|
|
"frequency %d MHz", params->freq);
|
|
goto success;
|
|
}
|
|
|
|
if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
|
|
wpa_s->conf->p2p_oper_reg_class == 116 ||
|
|
wpa_s->conf->p2p_oper_reg_class == 117 ||
|
|
wpa_s->conf->p2p_oper_reg_class == 124 ||
|
|
wpa_s->conf->p2p_oper_reg_class == 125 ||
|
|
wpa_s->conf->p2p_oper_reg_class == 126 ||
|
|
wpa_s->conf->p2p_oper_reg_class == 127) &&
|
|
wpas_p2p_supported_freq_go(wpa_s, channels,
|
|
5000 +
|
|
5 * wpa_s->conf->p2p_oper_channel)) {
|
|
params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
|
|
"frequency %d MHz", params->freq);
|
|
goto success;
|
|
}
|
|
|
|
/* Try using best channels */
|
|
if (wpa_s->conf->p2p_oper_channel == 0 &&
|
|
wpa_s->best_overall_freq > 0 &&
|
|
wpas_p2p_supported_freq_go(wpa_s, channels,
|
|
wpa_s->best_overall_freq)) {
|
|
params->freq = wpa_s->best_overall_freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
|
|
"channel %d MHz", params->freq);
|
|
goto success;
|
|
}
|
|
|
|
if (wpa_s->conf->p2p_oper_channel == 0 &&
|
|
wpa_s->best_24_freq > 0 &&
|
|
wpas_p2p_supported_freq_go(wpa_s, channels,
|
|
wpa_s->best_24_freq)) {
|
|
params->freq = wpa_s->best_24_freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
|
|
"channel %d MHz", params->freq);
|
|
goto success;
|
|
}
|
|
|
|
if (wpa_s->conf->p2p_oper_channel == 0 &&
|
|
wpa_s->best_5_freq > 0 &&
|
|
wpas_p2p_supported_freq_go(wpa_s, channels,
|
|
wpa_s->best_5_freq)) {
|
|
params->freq = wpa_s->best_5_freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
|
|
"channel %d MHz", params->freq);
|
|
goto success;
|
|
}
|
|
|
|
/* try using preferred channels */
|
|
cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
|
|
if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
|
params->freq = cand;
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
|
|
"channels", params->freq);
|
|
goto success;
|
|
}
|
|
|
|
/* Try using a channel that allows VHT to be used with 80 MHz */
|
|
if (wpa_s->hw.modes && wpa_s->p2p_group_common_freqs) {
|
|
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
|
|
enum hostapd_hw_mode mode;
|
|
struct hostapd_hw_modes *hwmode;
|
|
u8 chan;
|
|
|
|
cand = wpa_s->p2p_group_common_freqs[i];
|
|
mode = ieee80211_freq_to_chan(cand, &chan);
|
|
hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
|
|
mode, is_6ghz_freq(cand));
|
|
if (!hwmode ||
|
|
wpas_p2p_verify_channel(wpa_s, hwmode, chan,
|
|
BW80) != ALLOWED)
|
|
continue;
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
|
params->freq = cand;
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Use freq %d MHz common with the peer and allowing VHT80",
|
|
params->freq);
|
|
goto success;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Try using a channel that allows HT to be used with 40 MHz on the same
|
|
* band so that CSA can be used */
|
|
if (wpa_s->current_ssid && wpa_s->hw.modes &&
|
|
wpa_s->p2p_group_common_freqs) {
|
|
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
|
|
enum hostapd_hw_mode mode;
|
|
struct hostapd_hw_modes *hwmode;
|
|
u8 chan;
|
|
|
|
cand = wpa_s->p2p_group_common_freqs[i];
|
|
mode = ieee80211_freq_to_chan(cand, &chan);
|
|
hwmode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
|
|
mode, is_6ghz_freq(cand));
|
|
if (!wpas_same_band(wpa_s->current_ssid->frequency,
|
|
cand) ||
|
|
!hwmode ||
|
|
(wpas_p2p_verify_channel(wpa_s, hwmode, chan,
|
|
BW40MINUS) != ALLOWED &&
|
|
wpas_p2p_verify_channel(wpa_s, hwmode, chan,
|
|
BW40PLUS) != ALLOWED))
|
|
continue;
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
|
params->freq = cand;
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Use freq %d MHz common with the peer, allowing HT40, and maintaining same band",
|
|
params->freq);
|
|
goto success;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Try using one of the group common freqs on the same band so that CSA
|
|
* can be used */
|
|
if (wpa_s->current_ssid && wpa_s->p2p_group_common_freqs) {
|
|
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
|
|
cand = wpa_s->p2p_group_common_freqs[i];
|
|
if (!wpas_same_band(wpa_s->current_ssid->frequency,
|
|
cand))
|
|
continue;
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
|
params->freq = cand;
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Use freq %d MHz common with the peer and maintaining same band",
|
|
params->freq);
|
|
goto success;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Try using one of the group common freqs */
|
|
if (wpa_s->p2p_group_common_freqs) {
|
|
for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
|
|
cand = wpa_s->p2p_group_common_freqs[i];
|
|
if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
|
|
params->freq = cand;
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Use freq %d MHz common with the peer",
|
|
params->freq);
|
|
goto success;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* no preference, select some channel */
|
|
wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
|
|
|
|
if (params->freq == 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
|
|
goto fail;
|
|
}
|
|
|
|
success:
|
|
os_free(freqs);
|
|
return 0;
|
|
fail:
|
|
os_free(freqs);
|
|
return -1;
|
|
}
|
|
|
|
|
|
static struct wpa_supplicant *
|
|
wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
|
|
int go)
|
|
{
|
|
struct wpa_supplicant *group_wpa_s;
|
|
|
|
if (!wpas_p2p_create_iface(wpa_s)) {
|
|
if (wpa_s->p2p_mgmt) {
|
|
/*
|
|
* We may be called on the p2p_dev interface which
|
|
* cannot be used for group operations, so always use
|
|
* the primary interface.
|
|
*/
|
|
wpa_s->parent->p2pdev = wpa_s;
|
|
wpa_s = wpa_s->parent;
|
|
}
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Use primary interface for group operations");
|
|
wpa_s->p2p_first_connection_timeout = 0;
|
|
if (wpa_s != wpa_s->p2pdev)
|
|
wpas_p2p_clone_config(wpa_s, wpa_s->p2pdev);
|
|
return wpa_s;
|
|
}
|
|
|
|
if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
|
|
WPA_IF_P2P_CLIENT) < 0) {
|
|
wpa_msg_global(wpa_s, MSG_ERROR,
|
|
"P2P: Failed to add group interface");
|
|
return NULL;
|
|
}
|
|
group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
|
|
if (group_wpa_s == NULL) {
|
|
wpa_msg_global(wpa_s, MSG_ERROR,
|
|
"P2P: Failed to initialize group interface");
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
return NULL;
|
|
}
|
|
|
|
if (go && wpa_s->p2p_go_do_acs) {
|
|
group_wpa_s->p2p_go_do_acs = wpa_s->p2p_go_do_acs;
|
|
group_wpa_s->p2p_go_acs_band = wpa_s->p2p_go_acs_band;
|
|
wpa_s->p2p_go_do_acs = 0;
|
|
}
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
|
|
group_wpa_s->ifname);
|
|
group_wpa_s->p2p_first_connection_timeout = 0;
|
|
return group_wpa_s;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
|
|
* @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
|
|
* @persistent_group: Whether to create a persistent group
|
|
* @freq: Frequency for the group or 0 to indicate no hardcoding
|
|
* @vht_center_freq2: segment_1 center frequency for GO operating in VHT 80P80
|
|
* @ht40: Start GO with 40 MHz channel width
|
|
* @vht: Start GO with VHT support
|
|
* @vht_chwidth: channel bandwidth for GO operating with VHT support
|
|
* @edmg: Start GO with EDMG support
|
|
* Returns: 0 on success, -1 on failure
|
|
*
|
|
* This function creates a new P2P group with the local end as the Group Owner,
|
|
* i.e., without using Group Owner Negotiation.
|
|
*/
|
|
int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
|
|
int freq, int vht_center_freq2, int ht40, int vht,
|
|
int max_oper_chwidth, int he, int edmg)
|
|
{
|
|
struct p2p_go_neg_results params;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
os_free(wpa_s->global->add_psk);
|
|
wpa_s->global->add_psk = NULL;
|
|
|
|
/* Make sure we are not running find during connection establishment */
|
|
wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
|
|
wpas_p2p_stop_find_oper(wpa_s);
|
|
|
|
if (!wpa_s->p2p_go_do_acs) {
|
|
freq = wpas_p2p_select_go_freq(wpa_s, freq);
|
|
if (freq < 0)
|
|
return -1;
|
|
}
|
|
|
|
if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
|
|
ht40, vht, max_oper_chwidth, he, edmg,
|
|
NULL))
|
|
return -1;
|
|
|
|
p2p_go_params(wpa_s->global->p2p, ¶ms);
|
|
params.persistent_group = persistent_group;
|
|
|
|
wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
|
|
if (wpa_s == NULL)
|
|
return -1;
|
|
wpas_start_wps_go(wpa_s, ¶ms, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *params, int addr_allocated,
|
|
int freq, int force_scan)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
|
|
wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
|
|
if (wpa_s == NULL)
|
|
return -1;
|
|
if (force_scan)
|
|
os_get_reltime(&wpa_s->scan_min_time);
|
|
wpa_s->p2p_last_4way_hs_fail = NULL;
|
|
|
|
wpa_supplicant_ap_deinit(wpa_s);
|
|
|
|
ssid = wpa_config_add_network(wpa_s->conf);
|
|
if (ssid == NULL)
|
|
return -1;
|
|
os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
|
|
wpa_config_set_network_defaults(ssid);
|
|
ssid->temporary = 1;
|
|
ssid->proto = WPA_PROTO_RSN;
|
|
ssid->pbss = params->pbss;
|
|
ssid->pairwise_cipher = params->pbss ? WPA_CIPHER_GCMP :
|
|
WPA_CIPHER_CCMP;
|
|
ssid->group_cipher = params->pbss ? WPA_CIPHER_GCMP : WPA_CIPHER_CCMP;
|
|
ssid->key_mgmt = WPA_KEY_MGMT_PSK;
|
|
ssid->ssid = os_malloc(params->ssid_len);
|
|
if (ssid->ssid == NULL) {
|
|
wpa_config_remove_network(wpa_s->conf, ssid->id);
|
|
return -1;
|
|
}
|
|
os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
|
|
ssid->ssid_len = params->ssid_len;
|
|
ssid->p2p_group = 1;
|
|
ssid->export_keys = 1;
|
|
if (params->psk_set) {
|
|
os_memcpy(ssid->psk, params->psk, 32);
|
|
ssid->psk_set = 1;
|
|
}
|
|
if (params->passphrase)
|
|
ssid->passphrase = os_strdup(params->passphrase);
|
|
|
|
wpa_s->show_group_started = 1;
|
|
wpa_s->p2p_in_invitation = 1;
|
|
wpa_s->p2p_invite_go_freq = freq;
|
|
wpa_s->p2p_go_group_formation_completed = 0;
|
|
wpa_s->global->p2p_group_formation = wpa_s;
|
|
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
|
|
NULL);
|
|
eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
|
|
wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
wpa_supplicant_select_network(wpa_s, ssid);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 vht_center_freq2, int ht40,
|
|
int vht, int max_oper_chwidth, int he,
|
|
int edmg,
|
|
const struct p2p_channels *channels,
|
|
int connection_timeout, int force_scan)
|
|
{
|
|
struct p2p_go_neg_results params;
|
|
int go = 0, freq;
|
|
|
|
if (ssid->disabled != 2 || ssid->ssid == NULL)
|
|
return -1;
|
|
|
|
if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
|
|
go == (ssid->mode == WPAS_MODE_P2P_GO)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
|
|
"already running");
|
|
if (go == 0 &&
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL)) {
|
|
/*
|
|
* This can happen if Invitation Response frame was lost
|
|
* and the peer (GO of a persistent group) tries to
|
|
* invite us again. Reschedule the timeout to avoid
|
|
* terminating the wait for the connection too early
|
|
* since we now know that the peer is still trying to
|
|
* invite us instead of having already started the GO.
|
|
*/
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Reschedule group formation timeout since peer is still trying to invite us");
|
|
eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
|
|
wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
os_free(wpa_s->global->add_psk);
|
|
wpa_s->global->add_psk = NULL;
|
|
|
|
/* Make sure we are not running find during connection establishment */
|
|
wpas_p2p_stop_find_oper(wpa_s);
|
|
|
|
wpa_s->p2p_fallback_to_go_neg = 0;
|
|
|
|
if (ssid->mode == WPAS_MODE_P2P_GO) {
|
|
if (force_freq > 0) {
|
|
freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
|
|
if (freq < 0)
|
|
return -1;
|
|
} else {
|
|
freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
|
|
if (freq < 0 ||
|
|
(freq > 0 && !freq_included(wpa_s, channels, freq)))
|
|
freq = 0;
|
|
}
|
|
} else if (ssid->mode == WPAS_MODE_INFRA) {
|
|
freq = neg_freq;
|
|
if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
|
|
struct os_reltime now;
|
|
struct wpa_bss *bss =
|
|
wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
|
|
|
|
os_get_reltime(&now);
|
|
if (bss &&
|
|
!os_reltime_expired(&now, &bss->last_update, 5) &&
|
|
freq_included(wpa_s, channels, bss->freq))
|
|
freq = bss->freq;
|
|
else
|
|
freq = 0;
|
|
}
|
|
|
|
return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
|
|
force_scan);
|
|
} else {
|
|
return -1;
|
|
}
|
|
|
|
if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, vht_center_freq2,
|
|
ht40, vht, max_oper_chwidth, he, edmg,
|
|
channels))
|
|
return -1;
|
|
|
|
params.role_go = 1;
|
|
params.psk_set = ssid->psk_set;
|
|
if (params.psk_set)
|
|
os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
|
|
if (ssid->passphrase) {
|
|
if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
|
|
wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
|
|
"persistent group");
|
|
return -1;
|
|
}
|
|
os_strlcpy(params.passphrase, ssid->passphrase,
|
|
sizeof(params.passphrase));
|
|
}
|
|
os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
|
|
params.ssid_len = ssid->ssid_len;
|
|
params.persistent_group = 1;
|
|
|
|
wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
|
|
if (wpa_s == NULL)
|
|
return -1;
|
|
|
|
p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
|
|
|
|
wpa_s->p2p_first_connection_timeout = connection_timeout;
|
|
wpas_start_wps_go(wpa_s, ¶ms, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
|
|
struct wpabuf *proberesp_ies)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
if (wpa_s->ap_iface) {
|
|
struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
|
|
if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
|
|
wpabuf_free(beacon_ies);
|
|
wpabuf_free(proberesp_ies);
|
|
return;
|
|
}
|
|
if (beacon_ies) {
|
|
wpabuf_free(hapd->p2p_beacon_ie);
|
|
hapd->p2p_beacon_ie = beacon_ies;
|
|
}
|
|
wpabuf_free(hapd->p2p_probe_resp_ie);
|
|
hapd->p2p_probe_resp_ie = proberesp_ies;
|
|
} else {
|
|
wpabuf_free(beacon_ies);
|
|
wpabuf_free(proberesp_ies);
|
|
}
|
|
wpa_supplicant_ap_update_beacon(wpa_s);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_idle_update(void *ctx, int idle)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
if (!wpa_s->ap_iface)
|
|
return;
|
|
wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
|
|
if (idle) {
|
|
if (wpa_s->global->p2p_fail_on_wps_complete &&
|
|
wpa_s->p2p_in_provisioning) {
|
|
wpas_p2p_grpform_fail_after_wps(wpa_s);
|
|
return;
|
|
}
|
|
wpas_p2p_set_group_idle_timeout(wpa_s);
|
|
} else
|
|
eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
|
|
}
|
|
|
|
|
|
struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *ssid)
|
|
{
|
|
struct p2p_group *group;
|
|
struct p2p_group_config *cfg;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
|
|
!ssid->p2p_group)
|
|
return NULL;
|
|
|
|
cfg = os_zalloc(sizeof(*cfg));
|
|
if (cfg == NULL)
|
|
return NULL;
|
|
|
|
if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
|
|
cfg->persistent_group = 2;
|
|
else if (ssid->p2p_persistent_group)
|
|
cfg->persistent_group = 1;
|
|
os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
|
|
if (wpa_s->max_stations &&
|
|
wpa_s->max_stations < wpa_s->conf->max_num_sta)
|
|
cfg->max_clients = wpa_s->max_stations;
|
|
else
|
|
cfg->max_clients = wpa_s->conf->max_num_sta;
|
|
os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
|
|
cfg->ssid_len = ssid->ssid_len;
|
|
cfg->freq = ssid->frequency;
|
|
cfg->cb_ctx = wpa_s;
|
|
cfg->ie_update = wpas_p2p_ie_update;
|
|
cfg->idle_update = wpas_p2p_idle_update;
|
|
cfg->ip_addr_alloc = WPA_GET_BE32(wpa_s->p2pdev->conf->ip_addr_start)
|
|
!= 0;
|
|
|
|
group = p2p_group_init(wpa_s->global->p2p, cfg);
|
|
if (group == NULL)
|
|
os_free(cfg);
|
|
if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
|
|
p2p_group_notif_formation_done(group);
|
|
wpa_s->p2p_group = group;
|
|
return group;
|
|
}
|
|
|
|
|
|
void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
|
|
int registrar)
|
|
{
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
|
|
if (!wpa_s->p2p_in_provisioning) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
|
|
"provisioning not in progress");
|
|
return;
|
|
}
|
|
|
|
if (ssid && ssid->mode == WPAS_MODE_INFRA) {
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
|
|
wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
|
|
ssid->ssid_len);
|
|
/* Clear any stored provisioning info */
|
|
p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
|
|
}
|
|
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
|
|
NULL);
|
|
wpa_s->p2p_go_group_formation_completed = 1;
|
|
if (ssid && ssid->mode == WPAS_MODE_INFRA) {
|
|
/*
|
|
* Use a separate timeout for initial data connection to
|
|
* complete to allow the group to be removed automatically if
|
|
* something goes wrong in this step before the P2P group idle
|
|
* timeout mechanism is taken into use.
|
|
*/
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
|
|
P2P_MAX_INITIAL_CONN_WAIT);
|
|
eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
|
|
wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
/* Complete group formation on successful data connection. */
|
|
wpa_s->p2p_go_group_formation_completed = 0;
|
|
} else if (ssid) {
|
|
/*
|
|
* Use a separate timeout for initial data connection to
|
|
* complete to allow the group to be removed automatically if
|
|
* the client does not complete data connection successfully.
|
|
*/
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
|
|
P2P_MAX_INITIAL_CONN_WAIT_GO);
|
|
eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
|
|
wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
/*
|
|
* Complete group formation on first successful data connection
|
|
*/
|
|
wpa_s->p2p_go_group_formation_completed = 0;
|
|
}
|
|
if (wpa_s->global->p2p)
|
|
p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
|
|
wpas_group_formation_completed(wpa_s, 1, 0);
|
|
}
|
|
|
|
|
|
void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
|
|
struct wps_event_fail *fail)
|
|
{
|
|
if (!wpa_s->p2p_in_provisioning) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
|
|
"provisioning not in progress");
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->go_params) {
|
|
p2p_clear_provisioning_info(
|
|
wpa_s->global->p2p,
|
|
wpa_s->go_params->peer_device_addr);
|
|
}
|
|
|
|
wpas_notify_p2p_wps_failed(wpa_s, fail);
|
|
|
|
if (wpa_s == wpa_s->global->p2p_group_formation) {
|
|
/*
|
|
* Allow some time for the failed WPS negotiation exchange to
|
|
* complete, but remove the group since group formation cannot
|
|
* succeed after provisioning failure.
|
|
*/
|
|
wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
|
|
wpa_s->global->p2p_fail_on_wps_complete = 1;
|
|
eloop_deplete_timeout(0, 50000,
|
|
wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
}
|
|
}
|
|
|
|
|
|
int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (!wpa_s->global->p2p_fail_on_wps_complete ||
|
|
!wpa_s->p2p_in_provisioning)
|
|
return 0;
|
|
|
|
wpas_p2p_grpform_fail_after_wps(wpa_s);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
u16 config_methods;
|
|
|
|
wpa_s->global->pending_p2ps_group = 0;
|
|
wpa_s->global->pending_p2ps_group_freq = 0;
|
|
wpa_s->p2p_fallback_to_go_neg = 0;
|
|
wpa_s->pending_pd_use = NORMAL_PD;
|
|
if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
|
|
p2ps_prov->conncap = p2ps_group_capability(
|
|
wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
|
|
&p2ps_prov->force_freq, &p2ps_prov->pref_freq);
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
|
|
__func__, p2ps_prov->conncap,
|
|
p2ps_prov->adv_id, p2ps_prov->conncap,
|
|
p2ps_prov->status, p2ps_prov->info);
|
|
|
|
config_methods = 0;
|
|
} else if (os_strncmp(config_method, "display", 7) == 0)
|
|
config_methods = WPS_CONFIG_DISPLAY;
|
|
else if (os_strncmp(config_method, "keypad", 6) == 0)
|
|
config_methods = WPS_CONFIG_KEYPAD;
|
|
else if (os_strncmp(config_method, "pbc", 3) == 0 ||
|
|
os_strncmp(config_method, "pushbutton", 10) == 0)
|
|
config_methods = WPS_CONFIG_PUSHBUTTON;
|
|
else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
|
|
os_free(p2ps_prov);
|
|
return -1;
|
|
}
|
|
|
|
if (use == WPAS_P2P_PD_AUTO) {
|
|
os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
|
|
wpa_s->pending_pd_config_methods = config_methods;
|
|
wpa_s->p2p_auto_pd = 1;
|
|
wpa_s->p2p_auto_join = 0;
|
|
wpa_s->pending_pd_before_join = 0;
|
|
wpa_s->auto_pd_scan_retry = 0;
|
|
wpas_p2p_stop_find(wpa_s);
|
|
wpa_s->p2p_join_scan_count = 0;
|
|
os_get_reltime(&wpa_s->p2p_auto_started);
|
|
wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
|
|
wpa_s->p2p_auto_started.sec,
|
|
wpa_s->p2p_auto_started.usec);
|
|
wpas_p2p_join_scan(wpa_s, NULL);
|
|
return 0;
|
|
}
|
|
|
|
if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
|
|
os_free(p2ps_prov);
|
|
return -1;
|
|
}
|
|
|
|
return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
|
|
config_methods, use == WPAS_P2P_PD_FOR_JOIN,
|
|
0, 1);
|
|
}
|
|
|
|
|
|
int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
|
|
char *end)
|
|
{
|
|
return p2p_scan_result_text(ies, ies_len, buf, end);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (!offchannel_pending_action_tx(wpa_s))
|
|
return;
|
|
|
|
if (wpa_s->p2p_send_action_work) {
|
|
wpas_p2p_free_send_action_work(wpa_s);
|
|
eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
|
|
wpa_s, NULL);
|
|
offchannel_send_action_done(wpa_s);
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
|
|
"operation request");
|
|
offchannel_clear_pending_action_tx(wpa_s);
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
wpas_p2p_clear_pending_action_tx(wpa_s);
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
|
|
wpa_s->p2p_in_provisioning) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Reject p2p_find operation%s%s",
|
|
(wpa_s->global->p2p_disabled || !wpa_s->global->p2p) ?
|
|
" (P2P disabled)" : "",
|
|
wpa_s->p2p_in_provisioning ?
|
|
" (p2p_in_provisioning)" : "");
|
|
return -1;
|
|
}
|
|
|
|
wpa_supplicant_cancel_sched_scan(wpa_s);
|
|
|
|
return p2p_find(wpa_s->global->p2p, timeout, type,
|
|
num_req_dev_types, req_dev_types, dev_id,
|
|
search_delay, seek_cnt, seek_string, freq);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
|
|
struct wpa_scan_results *scan_res)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
|
|
|
|
if (wpa_s->p2p_scan_work) {
|
|
struct wpa_radio_work *work = wpa_s->p2p_scan_work;
|
|
wpa_s->p2p_scan_work = NULL;
|
|
radio_work_done(work);
|
|
}
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
/*
|
|
* Indicate that results have been processed so that the P2P module can
|
|
* continue pending tasks.
|
|
*/
|
|
p2p_scan_res_handled(wpa_s->global->p2p);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpas_p2p_clear_pending_action_tx(wpa_s);
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
|
|
|
|
if (wpa_s->global->p2p)
|
|
p2p_stop_find(wpa_s->global->p2p);
|
|
|
|
if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Do not consider the scan results after stop_find");
|
|
wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
|
|
}
|
|
}
|
|
|
|
|
|
void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpas_p2p_stop_find_oper(wpa_s);
|
|
if (!wpa_s->global->pending_group_iface_for_p2ps)
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
|
|
{
|
|
int res;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
if (wpa_s->p2p_lo_started) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Cannot start P2P listen, it is offloaded");
|
|
return -1;
|
|
}
|
|
|
|
wpa_supplicant_cancel_sched_scan(wpa_s);
|
|
wpas_p2p_clear_pending_action_tx(wpa_s);
|
|
|
|
if (timeout == 0) {
|
|
/*
|
|
* This is a request for unlimited Listen state. However, at
|
|
* least for now, this is mapped to a Listen state for one
|
|
* hour.
|
|
*/
|
|
timeout = 3600;
|
|
}
|
|
eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
|
|
/*
|
|
* Stop previous find/listen operation to avoid trying to request a new
|
|
* remain-on-channel operation while the driver is still running the
|
|
* previous one.
|
|
*/
|
|
if (wpa_s->global->p2p)
|
|
p2p_stop_find(wpa_s->global->p2p);
|
|
|
|
res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
|
|
if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
|
|
wpa_s->global->p2p_long_listen = timeout * 1000;
|
|
eloop_register_timeout(timeout, 0,
|
|
wpas_p2p_long_listen_timeout,
|
|
wpa_s, NULL);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
|
|
u8 *buf, size_t len, int p2p_group)
|
|
{
|
|
struct wpabuf *p2p_ie;
|
|
int ret;
|
|
|
|
if (wpa_s->global->p2p_disabled)
|
|
return -1;
|
|
/*
|
|
* Advertize mandatory cross connection capability even on
|
|
* p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
|
|
*/
|
|
if (wpa_s->conf->p2p_disabled && p2p_group)
|
|
return -1;
|
|
if (wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
if (bss == NULL)
|
|
return -1;
|
|
|
|
p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
|
|
ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
|
|
p2p_group, p2p_ie);
|
|
wpabuf_free(p2p_ie);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
if (wpa_s->global->p2p_disabled)
|
|
return 0;
|
|
if (wpa_s->global->p2p == NULL)
|
|
return 0;
|
|
|
|
switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
|
|
ie, ie_len, rx_freq, wpa_s->p2p_lo_started)) {
|
|
case P2P_PREQ_NOT_P2P:
|
|
wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
|
|
ssi_signal);
|
|
/* fall through */
|
|
case P2P_PREQ_MALFORMED:
|
|
case P2P_PREQ_NOT_LISTEN:
|
|
case P2P_PREQ_NOT_PROCESSED:
|
|
default: /* make gcc happy */
|
|
return 0;
|
|
case P2P_PREQ_PROCESSED:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
if (wpa_s->global->p2p_disabled)
|
|
return;
|
|
if (wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
|
|
freq);
|
|
}
|
|
|
|
|
|
void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
|
|
{
|
|
unsigned int bands;
|
|
|
|
if (wpa_s->global->p2p_disabled)
|
|
return;
|
|
if (wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
bands = wpas_get_bands(wpa_s, NULL);
|
|
p2p_scan_ie(wpa_s->global->p2p, ies, NULL, bands);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
|
|
{
|
|
p2p_group_deinit(wpa_s->p2p_group);
|
|
wpa_s->p2p_group = NULL;
|
|
|
|
wpa_s->ap_configured_cb = NULL;
|
|
wpa_s->ap_configured_cb_ctx = NULL;
|
|
wpa_s->ap_configured_cb_data = NULL;
|
|
wpa_s->connect_without_scan = NULL;
|
|
}
|
|
|
|
|
|
int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
|
|
{
|
|
wpa_s->global->p2p_long_listen = 0;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
return p2p_reject(wpa_s->global->p2p, addr);
|
|
}
|
|
|
|
|
|
/* Invite to reinvoke a persistent group */
|
|
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 vht_center_freq2, int ht40, int vht, int max_chwidth,
|
|
int pref_freq, int he, int edmg)
|
|
{
|
|
enum p2p_invite_role role;
|
|
u8 *bssid = NULL;
|
|
int force_freq = 0;
|
|
int res;
|
|
int no_pref_freq_given = pref_freq == 0;
|
|
unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
|
|
|
|
wpa_s->global->p2p_invite_group = NULL;
|
|
if (peer_addr)
|
|
os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
|
|
else
|
|
os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
|
|
|
|
wpa_s->p2p_persistent_go_freq = freq;
|
|
wpa_s->p2p_go_ht40 = !!ht40;
|
|
wpa_s->p2p_go_vht = !!vht;
|
|
wpa_s->p2p_go_he = !!he;
|
|
wpa_s->p2p_go_max_oper_chwidth = max_chwidth;
|
|
wpa_s->p2p_go_vht_center_freq2 = vht_center_freq2;
|
|
wpa_s->p2p_go_edmg = !!edmg;
|
|
if (ssid->mode == WPAS_MODE_P2P_GO) {
|
|
role = P2P_INVITE_ROLE_GO;
|
|
if (peer_addr == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Missing peer "
|
|
"address in invitation command");
|
|
return -1;
|
|
}
|
|
if (wpas_p2p_create_iface(wpa_s)) {
|
|
if (wpas_p2p_add_group_interface(wpa_s,
|
|
WPA_IF_P2P_GO) < 0) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to "
|
|
"allocate a new interface for the "
|
|
"group");
|
|
return -1;
|
|
}
|
|
bssid = wpa_s->pending_interface_addr;
|
|
} else if (wpa_s->p2p_mgmt)
|
|
bssid = wpa_s->parent->own_addr;
|
|
else
|
|
bssid = wpa_s->own_addr;
|
|
} else {
|
|
role = P2P_INVITE_ROLE_CLIENT;
|
|
peer_addr = ssid->bssid;
|
|
}
|
|
wpa_s->pending_invite_ssid_id = ssid->id;
|
|
|
|
size = P2P_MAX_PREF_CHANNELS;
|
|
res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
|
|
role == P2P_INVITE_ROLE_GO,
|
|
pref_freq_list, &size);
|
|
if (res)
|
|
return res;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
|
|
|
|
if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
|
|
no_pref_freq_given && pref_freq > 0 &&
|
|
wpa_s->num_multichan_concurrent > 1 &&
|
|
wpas_p2p_num_unused_channels(wpa_s) > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
|
|
pref_freq);
|
|
pref_freq = 0;
|
|
}
|
|
|
|
/*
|
|
* Stop any find/listen operations before invitation and possibly
|
|
* connection establishment.
|
|
*/
|
|
wpas_p2p_stop_find_oper(wpa_s);
|
|
|
|
return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
|
|
ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
|
|
1, pref_freq, -1);
|
|
}
|
|
|
|
|
|
/* Invite to join an active group */
|
|
int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
|
|
const u8 *peer_addr, const u8 *go_dev_addr)
|
|
{
|
|
struct wpa_global *global = wpa_s->global;
|
|
enum p2p_invite_role role;
|
|
u8 *bssid = NULL;
|
|
struct wpa_ssid *ssid;
|
|
int persistent;
|
|
int freq = 0, force_freq = 0, pref_freq = 0;
|
|
int res;
|
|
unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
|
|
|
|
wpa_s->p2p_persistent_go_freq = 0;
|
|
wpa_s->p2p_go_ht40 = 0;
|
|
wpa_s->p2p_go_vht = 0;
|
|
wpa_s->p2p_go_vht_center_freq2 = 0;
|
|
wpa_s->p2p_go_max_oper_chwidth = 0;
|
|
wpa_s->p2p_go_edmg = 0;
|
|
|
|
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (os_strcmp(wpa_s->ifname, ifname) == 0)
|
|
break;
|
|
}
|
|
if (wpa_s == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
|
|
return -1;
|
|
}
|
|
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
|
|
"invitation");
|
|
return -1;
|
|
}
|
|
|
|
wpa_s->global->p2p_invite_group = wpa_s;
|
|
persistent = ssid->p2p_persistent_group &&
|
|
wpas_p2p_get_persistent(wpa_s->p2pdev, peer_addr,
|
|
ssid->ssid, ssid->ssid_len);
|
|
|
|
if (ssid->mode == WPAS_MODE_P2P_GO) {
|
|
role = P2P_INVITE_ROLE_ACTIVE_GO;
|
|
bssid = wpa_s->own_addr;
|
|
if (go_dev_addr == NULL)
|
|
go_dev_addr = wpa_s->global->p2p_dev_addr;
|
|
freq = ssid->frequency;
|
|
} else {
|
|
role = P2P_INVITE_ROLE_CLIENT;
|
|
if (wpa_s->wpa_state < WPA_ASSOCIATED) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
|
|
"invite to current group");
|
|
return -1;
|
|
}
|
|
bssid = wpa_s->bssid;
|
|
if (go_dev_addr == NULL &&
|
|
!is_zero_ether_addr(wpa_s->go_dev_addr))
|
|
go_dev_addr = wpa_s->go_dev_addr;
|
|
freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
|
|
(int) wpa_s->assoc_freq;
|
|
}
|
|
wpa_s->p2pdev->pending_invite_ssid_id = -1;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
size = P2P_MAX_PREF_CHANNELS;
|
|
res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
|
|
role == P2P_INVITE_ROLE_ACTIVE_GO,
|
|
pref_freq_list, &size);
|
|
if (res)
|
|
return res;
|
|
wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
|
|
|
|
return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
|
|
ssid->ssid, ssid->ssid_len, force_freq,
|
|
go_dev_addr, persistent, pref_freq, -1);
|
|
}
|
|
|
|
|
|
void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
int persistent;
|
|
int freq;
|
|
u8 ip[3 * 4], *ip_ptr = NULL;
|
|
char ip_addr[100];
|
|
|
|
if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
}
|
|
|
|
if (!wpa_s->show_group_started || !ssid)
|
|
return;
|
|
|
|
wpa_s->show_group_started = 0;
|
|
if (!wpa_s->p2p_go_group_formation_completed &&
|
|
wpa_s->global->p2p_group_formation == wpa_s) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Marking group formation completed on client on data connection");
|
|
wpa_s->p2p_go_group_formation_completed = 1;
|
|
wpa_s->global->p2p_group_formation = NULL;
|
|
wpa_s->p2p_in_provisioning = 0;
|
|
wpa_s->p2p_in_invitation = 0;
|
|
}
|
|
|
|
os_memset(go_dev_addr, 0, ETH_ALEN);
|
|
if (ssid->bssid_set)
|
|
os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
|
|
persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
|
|
ssid->ssid_len);
|
|
os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
|
|
|
|
if (wpa_s->global->p2p_group_formation == wpa_s)
|
|
wpa_s->global->p2p_group_formation = NULL;
|
|
|
|
freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
|
|
(int) wpa_s->assoc_freq;
|
|
|
|
ip_addr[0] = '\0';
|
|
if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
|
|
int res;
|
|
|
|
res = os_snprintf(ip_addr, sizeof(ip_addr),
|
|
" ip_addr=%u.%u.%u.%u "
|
|
"ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
|
|
ip[0], ip[1], ip[2], ip[3],
|
|
ip[4], ip[5], ip[6], ip[7],
|
|
ip[8], ip[9], ip[10], ip[11]);
|
|
if (os_snprintf_error(sizeof(ip_addr), res))
|
|
ip_addr[0] = '\0';
|
|
ip_ptr = ip;
|
|
}
|
|
|
|
wpas_p2p_group_started(wpa_s, 0, ssid, freq,
|
|
ssid->passphrase == NULL && ssid->psk_set ?
|
|
ssid->psk : NULL,
|
|
ssid->passphrase, go_dev_addr, persistent,
|
|
ip_addr);
|
|
|
|
if (persistent)
|
|
wpas_p2p_store_persistent_group(wpa_s->p2pdev,
|
|
ssid, go_dev_addr);
|
|
|
|
wpas_notify_p2p_group_started(wpa_s, ssid, persistent, 1, ip_ptr);
|
|
}
|
|
|
|
|
|
int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
|
|
u32 interval1, u32 duration2, u32 interval2)
|
|
{
|
|
int ret;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
if (wpa_s->wpa_state < WPA_ASSOCIATED ||
|
|
wpa_s->current_ssid == NULL ||
|
|
wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
|
|
return -1;
|
|
|
|
ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
|
|
wpa_s->own_addr, wpa_s->assoc_freq,
|
|
duration1, interval1, duration2, interval2);
|
|
if (ret == 0)
|
|
wpa_s->waiting_presence_resp = 1;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
|
|
unsigned int interval)
|
|
{
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
return p2p_ext_listen(wpa_s->global->p2p, period, interval);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->current_ssid == NULL) {
|
|
/*
|
|
* current_ssid can be cleared when P2P client interface gets
|
|
* disconnected, so assume this interface was used as P2P
|
|
* client.
|
|
*/
|
|
return 1;
|
|
}
|
|
return wpa_s->current_ssid->p2p_group &&
|
|
wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
|
|
if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
|
|
"disabled");
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
|
|
"group");
|
|
wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
|
|
{
|
|
int timeout;
|
|
|
|
if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
|
|
|
|
if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
|
|
return;
|
|
|
|
timeout = wpa_s->conf->p2p_group_idle;
|
|
if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
|
|
(timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
|
|
timeout = P2P_MAX_CLIENT_IDLE;
|
|
|
|
if (timeout == 0)
|
|
return;
|
|
|
|
if (timeout < 0) {
|
|
if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
|
|
timeout = 0; /* special client mode no-timeout */
|
|
else
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->p2p_in_provisioning) {
|
|
/*
|
|
* Use the normal group formation timeout during the
|
|
* provisioning phase to avoid terminating this process too
|
|
* early due to group idle timeout.
|
|
*/
|
|
wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
|
|
"during provisioning");
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->show_group_started) {
|
|
/*
|
|
* Use the normal group formation timeout between the end of
|
|
* the provisioning phase and completion of 4-way handshake to
|
|
* avoid terminating this process too early due to group idle
|
|
* timeout.
|
|
*/
|
|
wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
|
|
"while waiting for initial 4-way handshake to "
|
|
"complete");
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
|
|
timeout);
|
|
eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
|
|
wpa_s, NULL);
|
|
}
|
|
|
|
|
|
/* Returns 1 if the interface was removed */
|
|
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)
|
|
{
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return 0;
|
|
|
|
if (!locally_generated)
|
|
p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
|
|
ie_len);
|
|
|
|
if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
|
|
wpa_s->current_ssid &&
|
|
wpa_s->current_ssid->p2p_group &&
|
|
wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
|
|
wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
|
|
"session is ending");
|
|
if (wpas_p2p_group_delete(wpa_s,
|
|
P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
|
|
> 0)
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
if (!locally_generated)
|
|
p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
|
|
ie_len);
|
|
}
|
|
|
|
|
|
void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct p2p_data *p2p = wpa_s->global->p2p;
|
|
|
|
if (p2p == NULL)
|
|
return;
|
|
|
|
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
|
|
return;
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
|
|
p2p_set_dev_name(p2p, wpa_s->conf->device_name);
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
|
|
p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
|
|
|
|
if (wpa_s->wps &&
|
|
(wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
|
|
p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
|
|
|
|
if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
|
|
p2p_set_uuid(p2p, wpa_s->wps->uuid);
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
|
|
p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
|
|
p2p_set_model_name(p2p, wpa_s->conf->model_name);
|
|
p2p_set_model_number(p2p, wpa_s->conf->model_number);
|
|
p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
|
|
}
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
|
|
p2p_set_sec_dev_types(p2p,
|
|
(void *) wpa_s->conf->sec_device_type,
|
|
wpa_s->conf->num_sec_device_types);
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
|
|
int i;
|
|
p2p_remove_wps_vendor_extensions(p2p);
|
|
for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
|
|
if (wpa_s->conf->wps_vendor_ext[i] == NULL)
|
|
continue;
|
|
p2p_add_wps_vendor_extension(
|
|
p2p, wpa_s->conf->wps_vendor_ext[i]);
|
|
}
|
|
}
|
|
|
|
if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
|
|
wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
|
|
char country[3];
|
|
country[0] = wpa_s->conf->country[0];
|
|
country[1] = wpa_s->conf->country[1];
|
|
country[2] = 0x04;
|
|
p2p_set_country(p2p, country);
|
|
}
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
|
|
p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
|
|
wpa_s->conf->p2p_ssid_postfix ?
|
|
os_strlen(wpa_s->conf->p2p_ssid_postfix) :
|
|
0);
|
|
}
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
|
|
p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
|
|
u8 reg_class, channel;
|
|
int ret;
|
|
unsigned int r;
|
|
u8 channel_forced;
|
|
|
|
if (wpa_s->conf->p2p_listen_reg_class &&
|
|
wpa_s->conf->p2p_listen_channel) {
|
|
reg_class = wpa_s->conf->p2p_listen_reg_class;
|
|
channel = wpa_s->conf->p2p_listen_channel;
|
|
channel_forced = 1;
|
|
} else {
|
|
reg_class = 81;
|
|
/*
|
|
* Pick one of the social channels randomly as the
|
|
* listen channel.
|
|
*/
|
|
if (os_get_random((u8 *) &r, sizeof(r)) < 0)
|
|
channel = 1;
|
|
else
|
|
channel = 1 + (r % 3) * 5;
|
|
channel_forced = 0;
|
|
}
|
|
ret = p2p_set_listen_channel(p2p, reg_class, channel,
|
|
channel_forced);
|
|
if (ret)
|
|
wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
|
|
"failed: %d", ret);
|
|
}
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
|
|
u8 op_reg_class, op_channel, cfg_op_channel;
|
|
int ret = 0;
|
|
unsigned int r;
|
|
if (wpa_s->conf->p2p_oper_reg_class &&
|
|
wpa_s->conf->p2p_oper_channel) {
|
|
op_reg_class = wpa_s->conf->p2p_oper_reg_class;
|
|
op_channel = wpa_s->conf->p2p_oper_channel;
|
|
cfg_op_channel = 1;
|
|
} else {
|
|
op_reg_class = 81;
|
|
/*
|
|
* Use random operation channel from (1, 6, 11)
|
|
*if no other preference is indicated.
|
|
*/
|
|
if (os_get_random((u8 *) &r, sizeof(r)) < 0)
|
|
op_channel = 1;
|
|
else
|
|
op_channel = 1 + (r % 3) * 5;
|
|
cfg_op_channel = 0;
|
|
}
|
|
ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
|
|
cfg_op_channel);
|
|
if (ret)
|
|
wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
|
|
"failed: %d", ret);
|
|
}
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
|
|
if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
|
|
wpa_s->conf->p2p_pref_chan) < 0) {
|
|
wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
|
|
"update failed");
|
|
}
|
|
|
|
if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
|
|
wpa_printf(MSG_ERROR, "P2P: No GO channel list "
|
|
"update failed");
|
|
}
|
|
}
|
|
|
|
if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
|
|
p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
|
|
}
|
|
|
|
|
|
int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
|
|
int duration)
|
|
{
|
|
if (!wpa_s->ap_iface)
|
|
return -1;
|
|
return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
|
|
duration);
|
|
}
|
|
|
|
|
|
int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
|
|
{
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
wpa_s->global->cross_connection = enabled;
|
|
p2p_set_cross_connect(wpa_s->global->p2p, enabled);
|
|
|
|
if (!enabled) {
|
|
struct wpa_supplicant *iface;
|
|
|
|
for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
|
|
{
|
|
if (iface->cross_connect_enabled == 0)
|
|
continue;
|
|
|
|
iface->cross_connect_enabled = 0;
|
|
iface->cross_connect_in_use = 0;
|
|
wpa_msg_global(iface->p2pdev, MSG_INFO,
|
|
P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
|
|
iface->ifname,
|
|
iface->cross_connect_uplink);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
|
|
{
|
|
struct wpa_supplicant *iface;
|
|
|
|
if (!uplink->global->cross_connection)
|
|
return;
|
|
|
|
for (iface = uplink->global->ifaces; iface; iface = iface->next) {
|
|
if (!iface->cross_connect_enabled)
|
|
continue;
|
|
if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
|
|
0)
|
|
continue;
|
|
if (iface->ap_iface == NULL)
|
|
continue;
|
|
if (iface->cross_connect_in_use)
|
|
continue;
|
|
|
|
iface->cross_connect_in_use = 1;
|
|
wpa_msg_global(iface->p2pdev, MSG_INFO,
|
|
P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
|
|
iface->ifname, iface->cross_connect_uplink);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
|
|
{
|
|
struct wpa_supplicant *iface;
|
|
|
|
for (iface = uplink->global->ifaces; iface; iface = iface->next) {
|
|
if (!iface->cross_connect_enabled)
|
|
continue;
|
|
if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
|
|
0)
|
|
continue;
|
|
if (!iface->cross_connect_in_use)
|
|
continue;
|
|
|
|
wpa_msg_global(iface->p2pdev, MSG_INFO,
|
|
P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
|
|
iface->ifname, iface->cross_connect_uplink);
|
|
iface->cross_connect_in_use = 0;
|
|
}
|
|
}
|
|
|
|
|
|
void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
|
|
wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
|
|
wpa_s->cross_connect_disallowed)
|
|
wpas_p2p_disable_cross_connect(wpa_s);
|
|
else
|
|
wpas_p2p_enable_cross_connect(wpa_s);
|
|
if (!wpa_s->ap_iface &&
|
|
eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
|
|
}
|
|
|
|
|
|
void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpas_p2p_disable_cross_connect(wpa_s);
|
|
if (!wpa_s->ap_iface &&
|
|
!eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
|
|
wpa_s, NULL))
|
|
wpas_p2p_set_group_idle_timeout(wpa_s);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_supplicant *iface;
|
|
|
|
if (!wpa_s->global->cross_connection)
|
|
return;
|
|
|
|
for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
|
|
if (iface == wpa_s)
|
|
continue;
|
|
if (iface->drv_flags &
|
|
WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
|
|
continue;
|
|
if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
|
|
iface != wpa_s->parent)
|
|
continue;
|
|
|
|
wpa_s->cross_connect_enabled = 1;
|
|
os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
|
|
sizeof(wpa_s->cross_connect_uplink));
|
|
wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
|
|
"%s to %s whenever uplink is available",
|
|
wpa_s->ifname, wpa_s->cross_connect_uplink);
|
|
|
|
if (iface->ap_iface || iface->current_ssid == NULL ||
|
|
iface->current_ssid->mode != WPAS_MODE_INFRA ||
|
|
iface->cross_connect_disallowed ||
|
|
iface->wpa_state != WPA_COMPLETED)
|
|
break;
|
|
|
|
wpa_s->cross_connect_in_use = 1;
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
|
|
wpa_s->ifname, wpa_s->cross_connect_uplink);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
|
|
!wpa_s->p2p_in_provisioning)
|
|
return 0; /* not P2P client operation */
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
|
|
"session overlap");
|
|
if (wpa_s != wpa_s->p2pdev)
|
|
wpa_msg_ctrl(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_OVERLAP);
|
|
wpas_p2p_group_formation_failed(wpa_s, 0);
|
|
return 1;
|
|
}
|
|
|
|
|
|
void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
wpas_p2p_notif_pbc_overlap(wpa_s);
|
|
}
|
|
|
|
|
|
void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
|
|
enum wpas_p2p_channel_update_trig trig)
|
|
{
|
|
struct p2p_channels chan, cli_chan;
|
|
struct wpa_used_freq_data *freqs = NULL;
|
|
unsigned int num = wpa_s->num_multichan_concurrent;
|
|
|
|
if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
|
|
if (!freqs)
|
|
return;
|
|
|
|
num = get_shared_radio_freqs_data(wpa_s, freqs, num);
|
|
|
|
os_memset(&chan, 0, sizeof(chan));
|
|
os_memset(&cli_chan, 0, sizeof(cli_chan));
|
|
if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan,
|
|
is_p2p_6ghz_disabled(wpa_s->global->p2p))) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
|
|
"channel list");
|
|
return;
|
|
}
|
|
|
|
p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
|
|
|
|
wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
|
|
|
|
/*
|
|
* The used frequencies map changed, so it is possible that a GO is
|
|
* using a channel that is no longer valid for P2P use. It is also
|
|
* possible that due to policy consideration, it would be preferable to
|
|
* move it to a frequency already used by other station interfaces.
|
|
*/
|
|
wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
|
|
|
|
os_free(freqs);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
|
|
struct wpa_scan_results *scan_res)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
|
|
}
|
|
|
|
|
|
int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_global *global = wpa_s->global;
|
|
int found = 0;
|
|
const u8 *peer;
|
|
|
|
if (global->p2p == NULL)
|
|
return -1;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
|
|
|
|
if (wpa_s->pending_interface_name[0] &&
|
|
!is_zero_ether_addr(wpa_s->pending_interface_addr))
|
|
found = 1;
|
|
|
|
peer = p2p_get_go_neg_peer(global->p2p);
|
|
if (peer) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
|
|
MACSTR, MAC2STR(peer));
|
|
p2p_unauthorize(global->p2p, peer);
|
|
found = 1;
|
|
}
|
|
|
|
if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
|
|
wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
|
|
found = 1;
|
|
}
|
|
|
|
if (wpa_s->pending_pd_before_join) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
|
|
wpa_s->pending_pd_before_join = 0;
|
|
found = 1;
|
|
}
|
|
|
|
wpas_p2p_stop_find(wpa_s);
|
|
|
|
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
if (wpa_s == global->p2p_group_formation &&
|
|
(wpa_s->p2p_in_provisioning ||
|
|
wpa_s->parent->pending_interface_type ==
|
|
WPA_IF_P2P_CLIENT)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
|
|
"formation found - cancelling",
|
|
wpa_s->ifname);
|
|
found = 1;
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
if (wpa_s->p2p_in_provisioning) {
|
|
wpas_group_formation_completed(wpa_s, 0, 0);
|
|
break;
|
|
}
|
|
wpas_p2p_group_delete(wpa_s,
|
|
P2P_GROUP_REMOVAL_REQUESTED);
|
|
break;
|
|
} else if (wpa_s->p2p_in_invitation) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
|
|
wpa_s->ifname);
|
|
found = 1;
|
|
wpas_p2p_group_formation_failed(wpa_s, 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
|
|
return;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
|
|
"being available anymore");
|
|
wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
|
|
}
|
|
|
|
|
|
void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
|
|
int freq_24, int freq_5, int freq_overall)
|
|
{
|
|
struct p2p_data *p2p = wpa_s->global->p2p;
|
|
if (p2p == NULL)
|
|
return;
|
|
p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
|
|
}
|
|
|
|
|
|
int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
|
|
{
|
|
u8 peer[ETH_ALEN];
|
|
struct p2p_data *p2p = wpa_s->global->p2p;
|
|
|
|
if (p2p == NULL)
|
|
return -1;
|
|
|
|
if (hwaddr_aton(addr, peer))
|
|
return -1;
|
|
|
|
return p2p_unauthorize(p2p, peer);
|
|
}
|
|
|
|
|
|
/**
|
|
* wpas_p2p_disconnect - Disconnect from a P2P Group
|
|
* @wpa_s: Pointer to wpa_supplicant data
|
|
* Returns: 0 on success, -1 on failure
|
|
*
|
|
* This can be used to disconnect from a group in which the local end is a P2P
|
|
* Client or to end a P2P Group in case the local end is the Group Owner. If a
|
|
* virtual network interface was created for this group, that interface will be
|
|
* removed. Otherwise, only the configured P2P group network will be removed
|
|
* from the interface.
|
|
*/
|
|
int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
|
|
{
|
|
|
|
if (wpa_s == NULL)
|
|
return -1;
|
|
|
|
return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
|
|
-1 : 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
|
|
{
|
|
int ret;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return 0;
|
|
|
|
ret = p2p_in_progress(wpa_s->global->p2p);
|
|
if (ret == 0) {
|
|
/*
|
|
* Check whether there is an ongoing WPS provisioning step (or
|
|
* other parts of group formation) on another interface since
|
|
* p2p_in_progress() does not report this to avoid issues for
|
|
* scans during such provisioning step.
|
|
*/
|
|
if (wpa_s->global->p2p_group_formation &&
|
|
wpa_s->global->p2p_group_formation != wpa_s) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
|
|
"in group formation",
|
|
wpa_s->global->p2p_group_formation->ifname);
|
|
ret = 1;
|
|
}
|
|
}
|
|
|
|
if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
|
|
struct os_reltime now;
|
|
os_get_reltime(&now);
|
|
if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
|
|
P2P_MAX_INITIAL_CONN_WAIT_GO)) {
|
|
/* Wait for the first client has expired */
|
|
wpa_s->global->p2p_go_wait_client.sec = 0;
|
|
} else {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
|
|
ret = 1;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *ssid)
|
|
{
|
|
if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL) > 0) {
|
|
/**
|
|
* Remove the network by scheduling the group formation
|
|
* timeout to happen immediately. The teardown code
|
|
* needs to be scheduled to run asynch later so that we
|
|
* don't delete data from under ourselves unexpectedly.
|
|
* Calling wpas_p2p_group_formation_timeout directly
|
|
* causes a series of crashes in WPS failure scenarios.
|
|
*/
|
|
wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
|
|
"P2P group network getting removed");
|
|
eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL);
|
|
}
|
|
}
|
|
|
|
|
|
struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
|
|
const u8 *addr, const u8 *ssid,
|
|
size_t ssid_len)
|
|
{
|
|
struct wpa_ssid *s;
|
|
size_t i;
|
|
|
|
for (s = wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled != 2)
|
|
continue;
|
|
if (ssid &&
|
|
(ssid_len != s->ssid_len ||
|
|
os_memcmp(ssid, s->ssid, ssid_len) != 0))
|
|
continue;
|
|
if (addr == NULL) {
|
|
if (s->mode == WPAS_MODE_P2P_GO)
|
|
return s;
|
|
continue;
|
|
}
|
|
if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
|
|
return s; /* peer is GO in the persistent group */
|
|
if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
|
|
continue;
|
|
for (i = 0; i < s->num_p2p_clients; i++) {
|
|
if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
|
|
addr, ETH_ALEN) == 0)
|
|
return s; /* peer is P2P client in persistent
|
|
* group */
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
|
|
const u8 *addr)
|
|
{
|
|
if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->p2pdev, NULL) > 0) {
|
|
/*
|
|
* This can happen if WPS provisioning step is not terminated
|
|
* cleanly (e.g., P2P Client does not send WSC_Done). Since the
|
|
* peer was able to connect, there is no need to time out group
|
|
* formation after this, though. In addition, this is used with
|
|
* the initial connection wait on the GO as a separate formation
|
|
* timeout and as such, expected to be hit after the initial WPS
|
|
* provisioning step.
|
|
*/
|
|
wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
|
|
|
|
if (!wpa_s->p2p_go_group_formation_completed &&
|
|
!wpa_s->group_formation_reported) {
|
|
/*
|
|
* GO has not yet notified group formation success since
|
|
* the WPS step was not completed cleanly. Do that
|
|
* notification now since the P2P Client was able to
|
|
* connect and as such, must have received the
|
|
* credential from the WPS step.
|
|
*/
|
|
if (wpa_s->global->p2p)
|
|
p2p_wps_success_cb(wpa_s->global->p2p, addr);
|
|
wpas_group_formation_completed(wpa_s, 1, 0);
|
|
}
|
|
}
|
|
if (!wpa_s->p2p_go_group_formation_completed) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
|
|
wpa_s->p2p_go_group_formation_completed = 1;
|
|
wpa_s->global->p2p_group_formation = NULL;
|
|
wpa_s->p2p_in_provisioning = 0;
|
|
wpa_s->p2p_in_invitation = 0;
|
|
}
|
|
wpa_s->global->p2p_go_wait_client.sec = 0;
|
|
if (addr == NULL)
|
|
return;
|
|
wpas_p2p_add_persistent_group_client(wpa_s, addr);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
|
|
int group_added)
|
|
{
|
|
struct wpa_supplicant *group = wpa_s;
|
|
int ret = 0;
|
|
|
|
if (wpa_s->global->p2p_group_formation)
|
|
group = wpa_s->global->p2p_group_formation;
|
|
wpa_s = wpa_s->global->p2p_init_wpa_s;
|
|
offchannel_send_action_done(wpa_s);
|
|
if (group_added)
|
|
ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
|
|
wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
|
|
wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
|
|
0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
|
|
wpa_s->p2p_go_vht_center_freq2,
|
|
wpa_s->p2p_persistent_id,
|
|
wpa_s->p2p_pd_before_go_neg,
|
|
wpa_s->p2p_go_ht40,
|
|
wpa_s->p2p_go_vht,
|
|
wpa_s->p2p_go_max_oper_chwidth,
|
|
wpa_s->p2p_go_he,
|
|
wpa_s->p2p_go_edmg,
|
|
NULL, 0);
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
|
|
{
|
|
int res;
|
|
|
|
if (!wpa_s->p2p_fallback_to_go_neg ||
|
|
wpa_s->p2p_in_provisioning <= 5)
|
|
return 0;
|
|
|
|
if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
|
|
return 0; /* peer operating as a GO */
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
|
|
"fallback to GO Negotiation");
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
|
|
"reason=GO-not-found");
|
|
res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
|
|
|
|
return res == 1 ? 2 : 1;
|
|
}
|
|
|
|
|
|
unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_supplicant *ifs;
|
|
|
|
if (wpa_s->wpa_state > WPA_SCANNING) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
|
|
"concurrent operation",
|
|
wpa_s->conf->p2p_search_delay);
|
|
return wpa_s->conf->p2p_search_delay;
|
|
}
|
|
|
|
dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
|
|
radio_list) {
|
|
if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
|
|
"delay due to concurrent operation on "
|
|
"interface %s",
|
|
wpa_s->conf->p2p_search_delay,
|
|
ifs->ifname);
|
|
return wpa_s->conf->p2p_search_delay;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *s, const u8 *addr,
|
|
int iface_addr)
|
|
{
|
|
struct psk_list_entry *psk, *tmp;
|
|
int changed = 0;
|
|
|
|
dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
|
|
list) {
|
|
if ((iface_addr && !psk->p2p &&
|
|
os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
|
|
(!iface_addr && psk->p2p &&
|
|
os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Remove persistent group PSK list entry for "
|
|
MACSTR " p2p=%u",
|
|
MAC2STR(psk->addr), psk->p2p);
|
|
dl_list_del(&psk->list);
|
|
os_free(psk);
|
|
changed++;
|
|
}
|
|
}
|
|
|
|
return changed;
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
struct wpa_ssid *persistent;
|
|
struct psk_list_entry *p, *last;
|
|
|
|
if (psk_len != sizeof(p->psk))
|
|
return;
|
|
|
|
if (p2p_dev_addr) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
|
|
" p2p_dev_addr=" MACSTR,
|
|
MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
|
|
if (is_zero_ether_addr(p2p_dev_addr))
|
|
p2p_dev_addr = NULL;
|
|
} else {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
|
|
MAC2STR(mac_addr));
|
|
}
|
|
|
|
if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
|
|
/* To be added to persistent group once created */
|
|
if (wpa_s->global->add_psk == NULL) {
|
|
wpa_s->global->add_psk = os_zalloc(sizeof(*p));
|
|
if (wpa_s->global->add_psk == NULL)
|
|
return;
|
|
}
|
|
p = wpa_s->global->add_psk;
|
|
if (p2p_dev_addr) {
|
|
p->p2p = 1;
|
|
os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
|
|
} else {
|
|
p->p2p = 0;
|
|
os_memcpy(p->addr, mac_addr, ETH_ALEN);
|
|
}
|
|
os_memcpy(p->psk, psk, psk_len);
|
|
return;
|
|
}
|
|
|
|
if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
|
|
return;
|
|
}
|
|
|
|
persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, NULL, ssid->ssid,
|
|
ssid->ssid_len);
|
|
if (!persistent) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
|
|
return;
|
|
}
|
|
|
|
p = os_zalloc(sizeof(*p));
|
|
if (p == NULL)
|
|
return;
|
|
if (p2p_dev_addr) {
|
|
p->p2p = 1;
|
|
os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
|
|
} else {
|
|
p->p2p = 0;
|
|
os_memcpy(p->addr, mac_addr, ETH_ALEN);
|
|
}
|
|
os_memcpy(p->psk, psk, psk_len);
|
|
|
|
if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
|
|
(last = dl_list_last(&persistent->psk_list,
|
|
struct psk_list_entry, list))) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
|
|
MACSTR " (p2p=%u) to make room for a new one",
|
|
MAC2STR(last->addr), last->p2p);
|
|
dl_list_del(&last->list);
|
|
os_free(last);
|
|
}
|
|
|
|
wpas_p2p_remove_psk_entry(wpa_s->p2pdev, persistent,
|
|
p2p_dev_addr ? p2p_dev_addr : mac_addr,
|
|
p2p_dev_addr == NULL);
|
|
if (p2p_dev_addr) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
|
|
MACSTR, MAC2STR(p2p_dev_addr));
|
|
} else {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
|
|
MAC2STR(mac_addr));
|
|
}
|
|
dl_list_add(&persistent->psk_list, &p->list);
|
|
|
|
if (wpa_s->p2pdev->conf->update_config &&
|
|
wpa_config_write(wpa_s->p2pdev->confname, wpa_s->p2pdev->conf))
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
}
|
|
|
|
|
|
static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *s, const u8 *addr,
|
|
int iface_addr)
|
|
{
|
|
int res;
|
|
|
|
res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
|
|
if (res > 0 && wpa_s->conf->update_config &&
|
|
wpa_config_write(wpa_s->confname, wpa_s->conf))
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Failed to update configuration");
|
|
}
|
|
|
|
|
|
static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
|
|
const u8 *peer, int iface_addr)
|
|
{
|
|
struct hostapd_data *hapd;
|
|
struct hostapd_wpa_psk *psk, *prev, *rem;
|
|
struct sta_info *sta;
|
|
|
|
if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
|
|
wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
|
|
return;
|
|
|
|
/* Remove per-station PSK entry */
|
|
hapd = wpa_s->ap_iface->bss[0];
|
|
prev = NULL;
|
|
psk = hapd->conf->ssid.wpa_psk;
|
|
while (psk) {
|
|
if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
|
|
(!iface_addr &&
|
|
os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
|
|
MACSTR " iface_addr=%d",
|
|
MAC2STR(peer), iface_addr);
|
|
if (prev)
|
|
prev->next = psk->next;
|
|
else
|
|
hapd->conf->ssid.wpa_psk = psk->next;
|
|
rem = psk;
|
|
psk = psk->next;
|
|
os_free(rem);
|
|
} else {
|
|
prev = psk;
|
|
psk = psk->next;
|
|
}
|
|
}
|
|
|
|
/* Disconnect from group */
|
|
if (iface_addr)
|
|
sta = ap_get_sta(hapd, peer);
|
|
else
|
|
sta = ap_get_sta_p2p(hapd, peer);
|
|
if (sta) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
|
|
" (iface_addr=%d) from group",
|
|
MAC2STR(peer), iface_addr);
|
|
hostapd_drv_sta_deauth(hapd, sta->addr,
|
|
WLAN_REASON_DEAUTH_LEAVING);
|
|
ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
|
|
}
|
|
}
|
|
|
|
|
|
void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
|
|
int iface_addr)
|
|
{
|
|
struct wpa_ssid *s;
|
|
struct wpa_supplicant *w;
|
|
struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
|
|
|
|
/* Remove from any persistent group */
|
|
for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
|
|
if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
|
|
continue;
|
|
if (!iface_addr)
|
|
wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
|
|
wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
|
|
}
|
|
|
|
/* Remove from any operating group */
|
|
for (w = wpa_s->global->ifaces; w; w = w->next)
|
|
wpas_p2p_remove_client_go(w, peer, iface_addr);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
|
|
wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
|
|
}
|
|
|
|
|
|
int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
|
|
struct wpa_ssid *ssid)
|
|
{
|
|
struct wpa_supplicant *iface;
|
|
|
|
for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
|
|
if (!iface->current_ssid ||
|
|
iface->current_ssid->frequency == freq ||
|
|
(iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
|
|
!iface->current_ssid->p2p_group))
|
|
continue;
|
|
|
|
/* Remove the connection with least priority */
|
|
if (!wpas_is_p2p_prioritized(iface)) {
|
|
/* STA connection has priority over existing
|
|
* P2P connection, so remove the interface. */
|
|
wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
|
|
eloop_register_timeout(0, 0,
|
|
wpas_p2p_group_freq_conflict,
|
|
iface, NULL);
|
|
/* If connection in progress is P2P connection, do not
|
|
* proceed for the connection. */
|
|
if (wpa_s == iface)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
} else {
|
|
/* P2P connection has priority, disable the STA network
|
|
*/
|
|
wpa_supplicant_disable_network(wpa_s->global->ifaces,
|
|
ssid);
|
|
wpa_msg(wpa_s->global->ifaces, MSG_INFO,
|
|
WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
|
|
os_memset(wpa_s->global->ifaces->pending_bssid, 0,
|
|
ETH_ALEN);
|
|
/* If P2P connection is in progress, continue
|
|
* connecting...*/
|
|
if (wpa_s == iface)
|
|
return 0;
|
|
else
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
|
|
if (ssid == NULL || !ssid->p2p_group)
|
|
return 0;
|
|
|
|
if (wpa_s->p2p_last_4way_hs_fail &&
|
|
wpa_s->p2p_last_4way_hs_fail == ssid) {
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
struct wpa_ssid *persistent;
|
|
|
|
if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
|
|
ssid->ssid,
|
|
ssid->ssid_len) <= 0) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
|
|
goto disconnect;
|
|
}
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
|
|
MACSTR, MAC2STR(go_dev_addr));
|
|
persistent = wpas_p2p_get_persistent(wpa_s->p2pdev, go_dev_addr,
|
|
ssid->ssid,
|
|
ssid->ssid_len);
|
|
if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
|
|
goto disconnect;
|
|
}
|
|
wpa_msg_global(wpa_s->p2pdev, MSG_INFO,
|
|
P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
|
|
persistent->id);
|
|
disconnect:
|
|
wpa_s->p2p_last_4way_hs_fail = NULL;
|
|
/*
|
|
* Remove the group from a timeout to avoid issues with caller
|
|
* continuing to use the interface if this is on a P2P group
|
|
* interface.
|
|
*/
|
|
eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
|
|
wpa_s, NULL);
|
|
return 1;
|
|
}
|
|
|
|
wpa_s->p2p_last_4way_hs_fail = ssid;
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_WPS_NFC
|
|
|
|
static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
|
|
struct wpabuf *p2p)
|
|
{
|
|
struct wpabuf *ret;
|
|
size_t wsc_len;
|
|
|
|
if (p2p == NULL) {
|
|
wpabuf_free(wsc);
|
|
wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
|
|
return NULL;
|
|
}
|
|
|
|
wsc_len = wsc ? wpabuf_len(wsc) : 0;
|
|
ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
|
|
if (ret == NULL) {
|
|
wpabuf_free(wsc);
|
|
wpabuf_free(p2p);
|
|
return NULL;
|
|
}
|
|
|
|
wpabuf_put_be16(ret, wsc_len);
|
|
if (wsc)
|
|
wpabuf_put_buf(ret, wsc);
|
|
wpabuf_put_be16(ret, wpabuf_len(p2p));
|
|
wpabuf_put_buf(ret, p2p);
|
|
|
|
wpabuf_free(wsc);
|
|
wpabuf_free(p2p);
|
|
wpa_hexdump_buf(MSG_DEBUG,
|
|
"P2P: Generated NFC connection handover message", ret);
|
|
|
|
if (ndef && ret) {
|
|
struct wpabuf *tmp;
|
|
tmp = ndef_build_p2p(ret);
|
|
wpabuf_free(ret);
|
|
if (tmp == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
|
|
return NULL;
|
|
}
|
|
ret = tmp;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid **ssid, u8 *go_dev_addr)
|
|
{
|
|
struct wpa_supplicant *iface;
|
|
|
|
if (go_dev_addr)
|
|
os_memset(go_dev_addr, 0, ETH_ALEN);
|
|
if (ssid)
|
|
*ssid = NULL;
|
|
for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
|
|
if (iface->wpa_state < WPA_ASSOCIATING ||
|
|
iface->current_ssid == NULL || iface->assoc_freq == 0 ||
|
|
!iface->current_ssid->p2p_group ||
|
|
iface->current_ssid->mode != WPAS_MODE_INFRA)
|
|
continue;
|
|
if (ssid)
|
|
*ssid = iface->current_ssid;
|
|
if (go_dev_addr)
|
|
os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
|
|
return iface->assoc_freq;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
|
|
int ndef)
|
|
{
|
|
struct wpabuf *wsc, *p2p;
|
|
struct wpa_ssid *ssid;
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
|
|
return NULL;
|
|
}
|
|
|
|
if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
|
|
wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
|
|
&wpa_s->conf->wps_nfc_dh_privkey) < 0) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
|
|
return NULL;
|
|
}
|
|
|
|
if (cli_freq == 0) {
|
|
wsc = wps_build_nfc_handover_req_p2p(
|
|
wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
|
|
} else
|
|
wsc = NULL;
|
|
p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
|
|
go_dev_addr, ssid ? ssid->ssid : NULL,
|
|
ssid ? ssid->ssid_len : 0);
|
|
|
|
return wpas_p2p_nfc_handover(ndef, wsc, p2p);
|
|
}
|
|
|
|
|
|
struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
|
|
int ndef, int tag)
|
|
{
|
|
struct wpabuf *wsc, *p2p;
|
|
struct wpa_ssid *ssid;
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return NULL;
|
|
|
|
if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
|
|
wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
|
|
&wpa_s->conf->wps_nfc_dh_privkey) < 0)
|
|
return NULL;
|
|
|
|
if (cli_freq == 0) {
|
|
wsc = wps_build_nfc_handover_sel_p2p(
|
|
wpa_s->parent->wps,
|
|
tag ? wpa_s->conf->wps_nfc_dev_pw_id :
|
|
DEV_PW_NFC_CONNECTION_HANDOVER,
|
|
wpa_s->conf->wps_nfc_dh_pubkey,
|
|
tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
|
|
} else
|
|
wsc = NULL;
|
|
p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
|
|
go_dev_addr, ssid ? ssid->ssid : NULL,
|
|
ssid ? ssid->ssid_len : 0);
|
|
|
|
return wpas_p2p_nfc_handover(ndef, wsc, p2p);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
|
|
struct p2p_nfc_params *params)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
|
|
"connection handover (freq=%d)",
|
|
params->go_freq);
|
|
|
|
if (params->go_freq && params->go_ssid_len) {
|
|
wpa_s->p2p_wps_method = WPS_NFC;
|
|
wpa_s->pending_join_wps_method = WPS_NFC;
|
|
os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
|
|
os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
|
|
ETH_ALEN);
|
|
return wpas_p2p_join_start(wpa_s, params->go_freq,
|
|
params->go_ssid,
|
|
params->go_ssid_len);
|
|
}
|
|
|
|
return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
|
|
WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
|
|
params->go_freq, wpa_s->p2p_go_vht_center_freq2,
|
|
-1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
|
|
wpa_s->p2p_go_he, wpa_s->p2p_go_edmg,
|
|
params->go_ssid_len ? params->go_ssid : NULL,
|
|
params->go_ssid_len);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
|
|
struct p2p_nfc_params *params, int tag)
|
|
{
|
|
int res, persistent;
|
|
struct wpa_ssid *ssid;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
|
|
"connection handover");
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid == NULL)
|
|
continue;
|
|
if (ssid->mode != WPAS_MODE_P2P_GO)
|
|
continue;
|
|
if (wpa_s->ap_iface == NULL)
|
|
continue;
|
|
break;
|
|
}
|
|
if (wpa_s == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
|
|
return -1;
|
|
}
|
|
|
|
if (wpa_s->p2pdev->p2p_oob_dev_pw_id !=
|
|
DEV_PW_NFC_CONNECTION_HANDOVER &&
|
|
!wpa_s->p2pdev->p2p_oob_dev_pw) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
|
|
return -1;
|
|
}
|
|
res = wpas_ap_wps_add_nfc_pw(
|
|
wpa_s, wpa_s->p2pdev->p2p_oob_dev_pw_id,
|
|
wpa_s->p2pdev->p2p_oob_dev_pw,
|
|
wpa_s->p2pdev->p2p_peer_oob_pk_hash_known ?
|
|
wpa_s->p2pdev->p2p_peer_oob_pubkey_hash : NULL);
|
|
if (res)
|
|
return res;
|
|
|
|
if (!tag) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
|
|
return 0;
|
|
}
|
|
|
|
if (!params->peer ||
|
|
!(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
|
|
return 0;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
|
|
" to join", MAC2STR(params->peer->p2p_device_addr));
|
|
|
|
wpa_s->global->p2p_invite_group = wpa_s;
|
|
persistent = ssid->p2p_persistent_group &&
|
|
wpas_p2p_get_persistent(wpa_s->p2pdev,
|
|
params->peer->p2p_device_addr,
|
|
ssid->ssid, ssid->ssid_len);
|
|
wpa_s->p2pdev->pending_invite_ssid_id = -1;
|
|
|
|
return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
|
|
P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
|
|
ssid->ssid, ssid->ssid_len, ssid->frequency,
|
|
wpa_s->global->p2p_dev_addr, persistent, 0,
|
|
wpa_s->p2pdev->p2p_oob_dev_pw_id);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
|
|
struct p2p_nfc_params *params,
|
|
int forced_freq)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
|
|
"connection handover");
|
|
return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
|
|
WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
|
|
forced_freq, wpa_s->p2p_go_vht_center_freq2,
|
|
-1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
|
|
wpa_s->p2p_go_he, wpa_s->p2p_go_edmg,
|
|
NULL, 0);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
|
|
struct p2p_nfc_params *params,
|
|
int forced_freq)
|
|
{
|
|
int res;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
|
|
"connection handover");
|
|
res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
|
|
WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
|
|
forced_freq, wpa_s->p2p_go_vht_center_freq2,
|
|
-1, 0, 1, 1, wpa_s->p2p_go_max_oper_chwidth,
|
|
wpa_s->p2p_go_he, wpa_s->p2p_go_edmg,
|
|
NULL, 0);
|
|
if (res)
|
|
return res;
|
|
|
|
res = wpas_p2p_listen(wpa_s, 60);
|
|
if (res) {
|
|
p2p_unauthorize(wpa_s->global->p2p,
|
|
params->peer->p2p_device_addr);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
|
|
const struct wpabuf *data,
|
|
int sel, int tag, int forced_freq)
|
|
{
|
|
const u8 *pos, *end;
|
|
u16 len, id;
|
|
struct p2p_nfc_params params;
|
|
int res;
|
|
|
|
os_memset(¶ms, 0, sizeof(params));
|
|
params.sel = sel;
|
|
|
|
wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
|
|
|
|
pos = wpabuf_head(data);
|
|
end = pos + wpabuf_len(data);
|
|
|
|
if (end - pos < 2) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
|
|
"attributes");
|
|
return -1;
|
|
}
|
|
len = WPA_GET_BE16(pos);
|
|
pos += 2;
|
|
if (len > end - pos) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
|
|
"attributes");
|
|
return -1;
|
|
}
|
|
params.wsc_attr = pos;
|
|
params.wsc_len = len;
|
|
pos += len;
|
|
|
|
if (end - pos < 2) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
|
|
"attributes");
|
|
return -1;
|
|
}
|
|
len = WPA_GET_BE16(pos);
|
|
pos += 2;
|
|
if (len > end - pos) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
|
|
"attributes");
|
|
return -1;
|
|
}
|
|
params.p2p_attr = pos;
|
|
params.p2p_len = len;
|
|
pos += len;
|
|
|
|
wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
|
|
params.wsc_attr, params.wsc_len);
|
|
wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
|
|
params.p2p_attr, params.p2p_len);
|
|
if (pos < end) {
|
|
wpa_hexdump(MSG_DEBUG,
|
|
"P2P: Ignored extra data after P2P attributes",
|
|
pos, end - pos);
|
|
}
|
|
|
|
res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
|
|
if (res)
|
|
return res;
|
|
|
|
if (params.next_step == NO_ACTION)
|
|
return 0;
|
|
|
|
if (params.next_step == BOTH_GO) {
|
|
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
|
|
MAC2STR(params.peer->p2p_device_addr));
|
|
return 0;
|
|
}
|
|
|
|
if (params.next_step == PEER_CLIENT) {
|
|
if (!is_zero_ether_addr(params.go_dev_addr)) {
|
|
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
|
|
"peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
|
|
" ssid=\"%s\"",
|
|
MAC2STR(params.peer->p2p_device_addr),
|
|
params.go_freq,
|
|
MAC2STR(params.go_dev_addr),
|
|
wpa_ssid_txt(params.go_ssid,
|
|
params.go_ssid_len));
|
|
} else {
|
|
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
|
|
"peer=" MACSTR " freq=%d",
|
|
MAC2STR(params.peer->p2p_device_addr),
|
|
params.go_freq);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
|
|
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
|
|
MACSTR, MAC2STR(params.peer->p2p_device_addr));
|
|
return 0;
|
|
}
|
|
|
|
wpabuf_free(wpa_s->p2p_oob_dev_pw);
|
|
wpa_s->p2p_oob_dev_pw = NULL;
|
|
|
|
if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
|
|
"received");
|
|
return -1;
|
|
}
|
|
|
|
id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
|
|
wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
|
|
wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
|
|
params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
|
|
os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
|
|
params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
|
|
wpa_s->p2p_peer_oob_pk_hash_known = 1;
|
|
|
|
if (tag) {
|
|
if (id < 0x10) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
|
|
"peer OOB Device Password Id %u", id);
|
|
return -1;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
|
|
"Device Password Id %u", id);
|
|
wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
|
|
params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
|
|
params.oob_dev_pw_len -
|
|
WPS_OOB_PUBKEY_HASH_LEN - 2);
|
|
wpa_s->p2p_oob_dev_pw_id = id;
|
|
wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
|
|
params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
|
|
params.oob_dev_pw_len -
|
|
WPS_OOB_PUBKEY_HASH_LEN - 2);
|
|
if (wpa_s->p2p_oob_dev_pw == NULL)
|
|
return -1;
|
|
|
|
if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
|
|
wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
|
|
&wpa_s->conf->wps_nfc_dh_privkey) < 0)
|
|
return -1;
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
|
|
"without Device Password");
|
|
wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
|
|
}
|
|
|
|
switch (params.next_step) {
|
|
case NO_ACTION:
|
|
case BOTH_GO:
|
|
case PEER_CLIENT:
|
|
/* already covered above */
|
|
return 0;
|
|
case JOIN_GROUP:
|
|
return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
|
|
case AUTH_JOIN:
|
|
return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
|
|
case INIT_GO_NEG:
|
|
return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
|
|
case RESP_GO_NEG:
|
|
/* TODO: use own OOB Dev Pw */
|
|
return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
|
|
const struct wpabuf *data, int forced_freq)
|
|
{
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, 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)
|
|
{
|
|
struct wpabuf *tmp;
|
|
int ret;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
|
|
|
|
wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
|
|
wpabuf_head(req), wpabuf_len(req));
|
|
wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
|
|
wpabuf_head(sel), wpabuf_len(sel));
|
|
if (forced_freq)
|
|
wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
|
|
tmp = ndef_parse_p2p(init ? sel : req);
|
|
if (tmp == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
|
|
return -1;
|
|
}
|
|
|
|
ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
|
|
forced_freq);
|
|
wpabuf_free(tmp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
|
|
{
|
|
const u8 *if_addr;
|
|
int go_intent = wpa_s->conf->p2p_go_intent;
|
|
struct wpa_supplicant *iface;
|
|
|
|
if (wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
if (!enabled) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
|
|
for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
|
|
{
|
|
if (!iface->ap_iface)
|
|
continue;
|
|
hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
|
|
}
|
|
p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
|
|
0, NULL);
|
|
if (wpa_s->p2p_nfc_tag_enabled)
|
|
wpas_p2p_remove_pending_group_interface(wpa_s);
|
|
wpa_s->p2p_nfc_tag_enabled = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (wpa_s->global->p2p_disabled)
|
|
return -1;
|
|
|
|
if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
|
|
wpa_s->conf->wps_nfc_dh_privkey == NULL ||
|
|
wpa_s->conf->wps_nfc_dev_pw == NULL ||
|
|
wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
|
|
wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
|
|
"to allow static handover cases");
|
|
return -1;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
|
|
|
|
wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
|
|
wpabuf_free(wpa_s->p2p_oob_dev_pw);
|
|
wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
|
|
if (wpa_s->p2p_oob_dev_pw == NULL)
|
|
return -1;
|
|
wpa_s->p2p_peer_oob_pk_hash_known = 0;
|
|
|
|
if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
|
|
wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
|
|
/*
|
|
* P2P Group Interface present and the command came on group
|
|
* interface, so enable the token for the current interface.
|
|
*/
|
|
wpa_s->create_p2p_iface = 0;
|
|
} else {
|
|
wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
|
|
}
|
|
|
|
if (wpa_s->create_p2p_iface) {
|
|
enum wpa_driver_if_type iftype;
|
|
/* Prepare to add a new interface for the group */
|
|
iftype = WPA_IF_P2P_GROUP;
|
|
if (go_intent == 15)
|
|
iftype = WPA_IF_P2P_GO;
|
|
if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
|
|
"interface for the group");
|
|
return -1;
|
|
}
|
|
|
|
if_addr = wpa_s->pending_interface_addr;
|
|
} else if (wpa_s->p2p_mgmt)
|
|
if_addr = wpa_s->parent->own_addr;
|
|
else
|
|
if_addr = wpa_s->own_addr;
|
|
|
|
wpa_s->p2p_nfc_tag_enabled = enabled;
|
|
|
|
for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
|
|
struct hostapd_data *hapd;
|
|
if (iface->ap_iface == NULL)
|
|
continue;
|
|
hapd = iface->ap_iface->bss[0];
|
|
wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
|
|
hapd->conf->wps_nfc_dh_pubkey =
|
|
wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
|
|
wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
|
|
hapd->conf->wps_nfc_dh_privkey =
|
|
wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
|
|
wpabuf_free(hapd->conf->wps_nfc_dev_pw);
|
|
hapd->conf->wps_nfc_dev_pw =
|
|
wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
|
|
hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
|
|
|
|
if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
|
|
wpa_dbg(iface, MSG_DEBUG,
|
|
"P2P: Failed to enable NFC Tag for GO");
|
|
}
|
|
}
|
|
p2p_set_authorized_oob_dev_pw_id(
|
|
wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
|
|
if_addr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_WPS_NFC */
|
|
|
|
|
|
static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
|
|
struct wpa_used_freq_data *freqs,
|
|
unsigned int num)
|
|
{
|
|
u8 curr_chan, cand, chan;
|
|
unsigned int i;
|
|
|
|
/*
|
|
* If possible, optimize the Listen channel to be a channel that is
|
|
* already used by one of the other interfaces.
|
|
*/
|
|
if (!wpa_s->conf->p2p_optimize_listen_chan)
|
|
return;
|
|
|
|
if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
|
|
return;
|
|
|
|
curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
|
|
for (i = 0, cand = 0; i < num; i++) {
|
|
ieee80211_freq_to_chan(freqs[i].freq, &chan);
|
|
if (curr_chan == chan) {
|
|
cand = 0;
|
|
break;
|
|
}
|
|
|
|
if (chan == 1 || chan == 6 || chan == 11)
|
|
cand = chan;
|
|
}
|
|
|
|
if (cand) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Update Listen channel to %u based on operating channel",
|
|
cand);
|
|
p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
|
|
}
|
|
}
|
|
|
|
|
|
static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct hostapd_config *conf;
|
|
struct p2p_go_neg_results params;
|
|
struct csa_settings csa_settings;
|
|
struct wpa_ssid *current_ssid = wpa_s->current_ssid;
|
|
int old_freq = current_ssid->frequency;
|
|
int ret;
|
|
|
|
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* TODO: This function may not always work correctly. For example,
|
|
* when we have a running GO and a BSS on a DFS channel.
|
|
*/
|
|
if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, 0, 0,
|
|
NULL)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P CSA: Failed to select new frequency for GO");
|
|
return -1;
|
|
}
|
|
|
|
if (current_ssid->frequency == params.freq) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P CSA: Selected same frequency - not moving GO");
|
|
return 0;
|
|
}
|
|
|
|
conf = hostapd_config_defaults();
|
|
if (!conf) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P CSA: Failed to allocate default config");
|
|
return -1;
|
|
}
|
|
|
|
current_ssid->frequency = params.freq;
|
|
if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P CSA: Failed to create new GO config");
|
|
ret = -1;
|
|
goto out;
|
|
}
|
|
|
|
if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P CSA: CSA to a different band is not supported");
|
|
ret = -1;
|
|
goto out;
|
|
}
|
|
|
|
os_memset(&csa_settings, 0, sizeof(csa_settings));
|
|
csa_settings.cs_count = P2P_GO_CSA_COUNT;
|
|
csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
|
|
csa_settings.freq_params.freq = params.freq;
|
|
csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
|
|
csa_settings.freq_params.ht_enabled = conf->ieee80211n;
|
|
csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
|
|
|
|
if (conf->ieee80211ac) {
|
|
int freq1 = 0, freq2 = 0;
|
|
u8 chan, opclass;
|
|
|
|
if (ieee80211_freq_to_channel_ext(params.freq,
|
|
conf->secondary_channel,
|
|
conf->vht_oper_chwidth,
|
|
&opclass, &chan) ==
|
|
NUM_HOSTAPD_MODES) {
|
|
wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
|
|
ret = -1;
|
|
goto out;
|
|
}
|
|
|
|
if (conf->vht_oper_centr_freq_seg0_idx)
|
|
freq1 = ieee80211_chan_to_freq(
|
|
NULL, opclass,
|
|
conf->vht_oper_centr_freq_seg0_idx);
|
|
|
|
if (conf->vht_oper_centr_freq_seg1_idx)
|
|
freq2 = ieee80211_chan_to_freq(
|
|
NULL, opclass,
|
|
conf->vht_oper_centr_freq_seg1_idx);
|
|
|
|
if (freq1 < 0 || freq2 < 0) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P CSA: Selected invalid VHT center freqs");
|
|
ret = -1;
|
|
goto out;
|
|
}
|
|
|
|
csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
|
|
csa_settings.freq_params.center_freq1 = freq1;
|
|
csa_settings.freq_params.center_freq2 = freq2;
|
|
|
|
switch (conf->vht_oper_chwidth) {
|
|
case CHANWIDTH_80MHZ:
|
|
case CHANWIDTH_80P80MHZ:
|
|
csa_settings.freq_params.bandwidth = 80;
|
|
break;
|
|
case CHANWIDTH_160MHZ:
|
|
csa_settings.freq_params.bandwidth = 160;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ret = ap_switch_channel(wpa_s, &csa_settings);
|
|
out:
|
|
current_ssid->frequency = old_freq;
|
|
hostapd_config_free(conf);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct p2p_go_neg_results params;
|
|
struct wpa_ssid *current_ssid = wpa_s->current_ssid;
|
|
void (*ap_configured_cb)(void *ctx, void *data);
|
|
void *ap_configured_cb_ctx, *ap_configured_cb_data;
|
|
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
|
|
current_ssid->frequency);
|
|
|
|
/* Stop the AP functionality */
|
|
/* TODO: Should do this in a way that does not indicated to possible
|
|
* P2P Clients in the group that the group is terminated. */
|
|
/* If this action occurs before a group is started, the callback should
|
|
* be preserved, or GROUP-STARTED event would be lost. If this action
|
|
* occurs after a group is started, these pointers are all NULL and
|
|
* harmless. */
|
|
ap_configured_cb = wpa_s->ap_configured_cb;
|
|
ap_configured_cb_ctx = wpa_s->ap_configured_cb_ctx;
|
|
ap_configured_cb_data = wpa_s->ap_configured_cb_data;
|
|
wpa_supplicant_ap_deinit(wpa_s);
|
|
|
|
/* Reselect the GO frequency */
|
|
if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, 0, 0, 0, 0,
|
|
NULL)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
|
|
wpas_p2p_group_delete(wpa_s,
|
|
P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
|
|
return;
|
|
}
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
|
|
params.freq);
|
|
|
|
if (params.freq &&
|
|
!p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Selected freq (%u MHz) is not valid for P2P",
|
|
params.freq);
|
|
wpas_p2p_group_delete(wpa_s,
|
|
P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
|
|
return;
|
|
}
|
|
|
|
/* Restore preserved callback parameters */
|
|
wpa_s->ap_configured_cb = ap_configured_cb;
|
|
wpa_s->ap_configured_cb_ctx = ap_configured_cb_ctx;
|
|
wpa_s->ap_configured_cb_data = ap_configured_cb_data;
|
|
|
|
/* Update the frequency */
|
|
current_ssid->frequency = params.freq;
|
|
wpa_s->connect_without_scan = current_ssid;
|
|
wpa_s->reassociate = 1;
|
|
wpa_s->disconnected = 0;
|
|
wpa_supplicant_req_scan(wpa_s, 0, 0);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
|
|
if (!wpa_s->ap_iface || !wpa_s->current_ssid)
|
|
return;
|
|
|
|
wpas_p2p_go_update_common_freqs(wpa_s);
|
|
|
|
/* Do not move GO in the middle of a CSA */
|
|
if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: CSA is in progress - not moving GO");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* First, try a channel switch flow. If it is not supported or fails,
|
|
* take down the GO and bring it up again.
|
|
*/
|
|
if (wpas_p2p_move_go_csa(wpa_s) < 0)
|
|
wpas_p2p_move_go_no_csa(wpa_s);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
struct wpa_supplicant *wpa_s = eloop_ctx;
|
|
struct wpa_used_freq_data *freqs = NULL;
|
|
unsigned int num = wpa_s->num_multichan_concurrent;
|
|
|
|
freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
|
|
if (!freqs)
|
|
return;
|
|
|
|
num = get_shared_radio_freqs_data(wpa_s, freqs, num);
|
|
|
|
/* Previous attempt to move a GO was not possible -- try again. */
|
|
wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
|
|
WPAS_P2P_CHANNEL_UPDATE_ANY);
|
|
|
|
os_free(freqs);
|
|
}
|
|
|
|
|
|
/*
|
|
* Consider moving a GO from its currently used frequency:
|
|
* 1. It is possible that due to regulatory consideration the frequency
|
|
* can no longer be used and there is a need to evacuate the GO.
|
|
* 2. It is possible that due to MCC considerations, it would be preferable
|
|
* to move the GO to a channel that is currently used by some other
|
|
* station interface.
|
|
*
|
|
* In case a frequency that became invalid is once again valid, cancel a
|
|
* previously initiated GO frequency change.
|
|
*/
|
|
static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
|
|
struct wpa_used_freq_data *freqs,
|
|
unsigned int num)
|
|
{
|
|
unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
|
|
unsigned int timeout;
|
|
int freq;
|
|
int dfs_offload;
|
|
|
|
wpas_p2p_go_update_common_freqs(wpa_s);
|
|
|
|
freq = wpa_s->current_ssid->frequency;
|
|
dfs_offload = (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
|
|
ieee80211_is_dfs(freq, wpa_s->hw.modes, wpa_s->hw.num_modes);
|
|
for (i = 0, invalid_freq = 0; i < num; i++) {
|
|
if (freqs[i].freq == freq) {
|
|
flags = freqs[i].flags;
|
|
|
|
/* The channel is invalid, must change it */
|
|
if (!p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
|
|
!dfs_offload) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Freq=%d MHz no longer valid for GO",
|
|
freq);
|
|
invalid_freq = 1;
|
|
}
|
|
} else if (freqs[i].flags == 0) {
|
|
/* Freq is not used by any other station interface */
|
|
continue;
|
|
} else if (!p2p_supported_freq(wpa_s->global->p2p,
|
|
freqs[i].freq) && !dfs_offload) {
|
|
/* Freq is not valid for P2P use cases */
|
|
continue;
|
|
} else if (wpa_s->conf->p2p_go_freq_change_policy ==
|
|
P2P_GO_FREQ_MOVE_SCM) {
|
|
policy_move = 1;
|
|
} else if (wpa_s->conf->p2p_go_freq_change_policy ==
|
|
P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
|
|
wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
|
|
policy_move = 1;
|
|
} else if ((wpa_s->conf->p2p_go_freq_change_policy ==
|
|
P2P_GO_FREQ_MOVE_SCM_ECSA) &&
|
|
wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
|
|
if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
|
|
policy_move = 1;
|
|
} else if ((wpa_s->drv_flags &
|
|
WPA_DRIVER_FLAGS_AP_CSA) &&
|
|
wpas_p2p_go_clients_support_ecsa(wpa_s)) {
|
|
u8 chan;
|
|
|
|
/*
|
|
* We do not support CSA between bands, so move
|
|
* GO only within the same band.
|
|
*/
|
|
if (wpa_s->ap_iface->current_mode->mode ==
|
|
ieee80211_freq_to_chan(freqs[i].freq,
|
|
&chan))
|
|
policy_move = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
|
|
invalid_freq, policy_move, flags);
|
|
|
|
/*
|
|
* The channel is valid, or we are going to have a policy move, so
|
|
* cancel timeout.
|
|
*/
|
|
if (!invalid_freq || policy_move) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Cancel a GO move from freq=%d MHz", freq);
|
|
eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
|
|
|
|
if (wpas_p2p_in_progress(wpa_s)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
|
|
eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
|
|
wpa_s, NULL);
|
|
eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
|
|
wpas_p2p_reconsider_moving_go,
|
|
wpa_s, NULL);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!invalid_freq && (!policy_move || flags != 0)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Not initiating a GO frequency change");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Do not consider moving GO if it is in the middle of a CSA. When the
|
|
* CSA is finished this flow should be retriggered.
|
|
*/
|
|
if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Not initiating a GO frequency change - CSA is in progress");
|
|
return;
|
|
}
|
|
|
|
if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
|
|
timeout = P2P_GO_FREQ_CHANGE_TIME;
|
|
else
|
|
timeout = 0;
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
|
|
freq, timeout);
|
|
eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
|
|
eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
|
|
struct wpa_used_freq_data *freqs,
|
|
unsigned int num,
|
|
enum wpas_p2p_channel_update_trig trig)
|
|
{
|
|
struct wpa_supplicant *ifs;
|
|
|
|
eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
|
|
NULL);
|
|
|
|
/*
|
|
* Travers all the radio interfaces, and for each GO interface, check
|
|
* if there is a need to move the GO from the frequency it is using,
|
|
* or in case the frequency is valid again, cancel the evacuation flow.
|
|
*/
|
|
dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
|
|
radio_list) {
|
|
if (ifs->current_ssid == NULL ||
|
|
ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
|
|
continue;
|
|
|
|
/*
|
|
* The GO was just started or completed channel switch, no need
|
|
* to move it.
|
|
*/
|
|
if (wpa_s == ifs &&
|
|
(trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
|
|
trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: GO move - schedule re-consideration");
|
|
eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
|
|
wpas_p2p_reconsider_moving_go,
|
|
wpa_s, NULL);
|
|
continue;
|
|
}
|
|
|
|
wpas_p2p_consider_moving_one_go(ifs, freqs, num);
|
|
}
|
|
}
|
|
|
|
|
|
void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
wpas_p2p_update_channel_list(wpa_s,
|
|
WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
|
|
}
|
|
|
|
|
|
void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
|
|
"the management interface is being removed");
|
|
wpas_p2p_deinit_global(wpa_s->global);
|
|
}
|
|
}
|
|
|
|
|
|
void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->ap_iface->bss)
|
|
wpa_s->ap_iface->bss[0]->p2p_group = NULL;
|
|
wpas_p2p_group_deinit(wpa_s);
|
|
}
|
|
|
|
|
|
int wpas_p2p_lo_start(struct wpa_supplicant *wpa_s, unsigned int freq,
|
|
unsigned int period, unsigned int interval,
|
|
unsigned int count)
|
|
{
|
|
struct p2p_data *p2p = wpa_s->global->p2p;
|
|
u8 *device_types;
|
|
size_t dev_types_len;
|
|
struct wpabuf *buf;
|
|
int ret;
|
|
|
|
if (wpa_s->p2p_lo_started) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P Listen offload is already started");
|
|
return 0;
|
|
}
|
|
|
|
if (wpa_s->global->p2p == NULL ||
|
|
!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Listen offload not supported");
|
|
return -1;
|
|
}
|
|
|
|
if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
|
|
wpa_printf(MSG_ERROR, "P2P: Input channel not supported: %u",
|
|
freq);
|
|
return -1;
|
|
}
|
|
|
|
/* Get device type */
|
|
dev_types_len = (wpa_s->conf->num_sec_device_types + 1) *
|
|
WPS_DEV_TYPE_LEN;
|
|
device_types = os_malloc(dev_types_len);
|
|
if (!device_types)
|
|
return -1;
|
|
os_memcpy(device_types, wpa_s->conf->device_type, WPS_DEV_TYPE_LEN);
|
|
os_memcpy(&device_types[WPS_DEV_TYPE_LEN], wpa_s->conf->sec_device_type,
|
|
wpa_s->conf->num_sec_device_types * WPS_DEV_TYPE_LEN);
|
|
|
|
/* Get Probe Response IE(s) */
|
|
buf = p2p_build_probe_resp_template(p2p, freq);
|
|
if (!buf) {
|
|
os_free(device_types);
|
|
return -1;
|
|
}
|
|
|
|
ret = wpa_drv_p2p_lo_start(wpa_s, freq, period, interval, count,
|
|
device_types, dev_types_len,
|
|
wpabuf_mhead_u8(buf), wpabuf_len(buf));
|
|
if (ret < 0)
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Failed to start P2P listen offload");
|
|
|
|
os_free(device_types);
|
|
wpabuf_free(buf);
|
|
|
|
if (ret == 0) {
|
|
wpa_s->p2p_lo_started = 1;
|
|
|
|
/* Stop current P2P listen if any */
|
|
wpas_stop_listen(wpa_s);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpas_p2p_lo_stop(struct wpa_supplicant *wpa_s)
|
|
{
|
|
int ret;
|
|
|
|
if (!wpa_s->p2p_lo_started)
|
|
return 0;
|
|
|
|
ret = wpa_drv_p2p_lo_stop(wpa_s);
|
|
if (ret < 0)
|
|
wpa_dbg(wpa_s, MSG_DEBUG,
|
|
"P2P: Failed to stop P2P listen offload");
|
|
|
|
wpa_s->p2p_lo_started = 0;
|
|
return ret;
|
|
}
|