![Johannes Berg](/assets/img/avatar_default.png)
GO activation can fail if the first client doesn't connect within a certain time, but this should not be dependent on wall time -- use monotonic time instead. While at it, use os_reltime_expired(). Signed-hostap: Johannes Berg <johannes.berg@intel.com>
6661 lines
186 KiB
C
6661 lines
186 KiB
C
/*
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* wpa_supplicant - P2P
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* Copyright (c) 2009-2010, Atheros Communications
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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/p2p_hostapd.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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#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.
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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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#ifndef P2P_CONCURRENT_SEARCH_DELAY
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#define P2P_CONCURRENT_SEARCH_DELAY 500
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#endif /* P2P_CONCURRENT_SEARCH_DELAY */
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#define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
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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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};
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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);
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static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
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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);
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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 void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
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int group_added);
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static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
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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 int wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
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int *p2p_freqs, unsigned int len)
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{
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int *freqs;
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unsigned int num, i, j;
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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_memset(p2p_freqs, 0, sizeof(int) * 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]))
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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_array(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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if (wpa_s->parent->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->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_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_supplicant *ifs;
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struct wpa_driver_scan_params params;
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int ret;
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struct wpabuf *wps_ie, *ies;
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int social_channels[] = { 2412, 2437, 2462, 0, 0 };
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size_t ielen;
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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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for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
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if (ifs->sta_scan_pending &&
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(wpas_scan_scheduled(ifs) || ifs->scanning) &&
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wpas_p2p_in_progress(wpa_s) == 2) {
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wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
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"pending station mode scan to be "
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"completed on interface %s", ifs->ifname);
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wpa_s->global->p2p_cb_on_scan_complete = 1;
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wpa_supplicant_req_scan(ifs, 0, 0);
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return 1;
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}
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}
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os_memset(¶ms, 0, sizeof(params));
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/* P2P Wildcard SSID */
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params.num_ssids = 1;
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params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
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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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return -1;
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ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
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ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
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if (ies == NULL) {
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wpabuf_free(wps_ie);
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return -1;
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}
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wpabuf_put_buf(ies, wps_ie);
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wpabuf_free(wps_ie);
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p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
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params.p2p_probe = 1;
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params.extra_ies = wpabuf_head(ies);
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params.extra_ies_len = wpabuf_len(ies);
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switch (type) {
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case P2P_SCAN_SOCIAL:
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params.freqs = social_channels;
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break;
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case P2P_SCAN_FULL:
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break;
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case P2P_SCAN_SOCIAL_PLUS_ONE:
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social_channels[3] = freq;
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params.freqs = social_channels;
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break;
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}
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ret = wpa_drv_scan(wpa_s, ¶ms);
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wpabuf_free(ies);
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if (ret) {
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for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
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if (ifs->scanning ||
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ifs->scan_res_handler == wpas_p2p_scan_res_handler) {
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wpa_s->global->p2p_cb_on_scan_complete = 1;
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ret = 1;
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break;
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}
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}
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} else {
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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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}
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return ret;
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}
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static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
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{
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switch (p2p_group_interface) {
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case P2P_GROUP_INTERFACE_PENDING:
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return WPA_IF_P2P_GROUP;
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case P2P_GROUP_INTERFACE_GO:
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return WPA_IF_P2P_GO;
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case P2P_GROUP_INTERFACE_CLIENT:
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return WPA_IF_P2P_CLIENT;
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}
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return WPA_IF_P2P_GROUP;
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}
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static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
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const u8 *ssid,
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size_t ssid_len, int *go)
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{
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struct wpa_ssid *s;
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for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
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for (s = wpa_s->conf->ssid; s; s = s->next) {
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if (s->disabled != 0 || !s->p2p_group ||
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s->ssid_len != ssid_len ||
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os_memcmp(ssid, s->ssid, ssid_len) != 0)
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continue;
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if (s->mode == WPAS_MODE_P2P_GO &&
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s != wpa_s->current_ssid)
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continue;
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if (go)
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*go = s->mode == WPAS_MODE_P2P_GO;
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return wpa_s;
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}
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}
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return NULL;
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}
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static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
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enum p2p_group_removal_reason removal_reason)
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{
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struct wpa_ssid *ssid;
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char *gtype;
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const char *reason;
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ssid = wpa_s->current_ssid;
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if (ssid == NULL) {
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/*
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* The current SSID was not known, but there may still be a
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* pending P2P group interface waiting for provisioning or a
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* P2P group that is trying to reconnect.
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*/
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ssid = wpa_s->conf->ssid;
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while (ssid) {
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if (ssid->p2p_group && ssid->disabled != 2)
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break;
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ssid = ssid->next;
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}
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if (ssid == NULL &&
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wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
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{
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wpa_printf(MSG_ERROR, "P2P: P2P group interface "
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"not found");
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return -1;
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}
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}
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if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
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gtype = "GO";
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else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
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(ssid && ssid->mode == WPAS_MODE_INFRA)) {
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wpa_s->reassociate = 0;
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wpa_s->disconnected = 1;
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wpa_supplicant_deauthenticate(wpa_s,
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WLAN_REASON_DEAUTH_LEAVING);
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gtype = "client";
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} else
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gtype = "GO";
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if (wpa_s->cross_connect_in_use) {
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wpa_s->cross_connect_in_use = 0;
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wpa_msg_global(wpa_s->parent, MSG_INFO,
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P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
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wpa_s->ifname, wpa_s->cross_connect_uplink);
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}
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switch (removal_reason) {
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case P2P_GROUP_REMOVAL_REQUESTED:
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reason = " reason=REQUESTED";
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break;
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case P2P_GROUP_REMOVAL_FORMATION_FAILED:
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reason = " reason=FORMATION_FAILED";
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break;
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case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
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reason = " reason=IDLE";
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break;
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case P2P_GROUP_REMOVAL_UNAVAILABLE:
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reason = " reason=UNAVAILABLE";
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break;
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case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
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reason = " reason=GO_ENDING_SESSION";
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break;
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case P2P_GROUP_REMOVAL_PSK_FAILURE:
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reason = " reason=PSK_FAILURE";
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break;
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case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
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reason = " reason=FREQ_CONFLICT";
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break;
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default:
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reason = "";
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break;
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}
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if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
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wpa_msg_global(wpa_s->parent, MSG_INFO,
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P2P_EVENT_GROUP_REMOVED "%s %s%s",
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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->parent, NULL) > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
|
|
"timeout");
|
|
wpa_s->p2p_in_provisioning = 0;
|
|
}
|
|
|
|
/*
|
|
* 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 (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
|
|
wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
|
|
|
|
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);
|
|
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;
|
|
}
|
|
|
|
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;
|
|
|
|
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);
|
|
wpa_s->sta_scan_pending = 0;
|
|
} 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);
|
|
|
|
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) {
|
|
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",
|
|
(u8 *) (bss + 1), bss->ie_len);
|
|
wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
|
|
((u8 *) bss + 1) + 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->pairwise_cipher = 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;
|
|
}
|
|
|
|
#ifndef CONFIG_NO_CONFIG_WRITE
|
|
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");
|
|
}
|
|
#endif /* CONFIG_NO_CONFIG_WRITE */
|
|
|
|
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;
|
|
|
|
ssid = wpa_s->current_ssid;
|
|
if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
|
|
!ssid->p2p_persistent_group)
|
|
return;
|
|
|
|
for (s = wpa_s->parent->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 * 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 * ETH_ALEN,
|
|
s->p2p_client_list + (i + 1) * ETH_ALEN,
|
|
(s->num_p2p_clients - i - 1) * ETH_ALEN);
|
|
os_memcpy(s->p2p_client_list +
|
|
(s->num_p2p_clients - 1) * ETH_ALEN, addr, 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, ETH_ALEN);
|
|
if (n == NULL)
|
|
return;
|
|
os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
|
|
s->p2p_client_list = n;
|
|
s->num_p2p_clients++;
|
|
} else if (!found) {
|
|
/* Not enough room for an additional entry - drop the oldest
|
|
* entry */
|
|
os_memmove(s->p2p_client_list,
|
|
s->p2p_client_list + ETH_ALEN,
|
|
(s->num_p2p_clients - 1) * ETH_ALEN);
|
|
os_memcpy(s->p2p_client_list +
|
|
(s->num_p2p_clients - 1) * ETH_ALEN,
|
|
addr, ETH_ALEN);
|
|
}
|
|
|
|
#ifndef CONFIG_NO_CONFIG_WRITE
|
|
if (wpa_s->parent->conf->update_config &&
|
|
wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
#endif /* CONFIG_NO_CONFIG_WRITE */
|
|
}
|
|
|
|
|
|
static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
|
|
int success)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
const char *ssid_txt;
|
|
int client;
|
|
int persistent;
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
int network_id = -1;
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
|
|
if (!success) {
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO,
|
|
P2P_EVENT_GROUP_FORMATION_FAILURE);
|
|
wpas_p2p_group_delete(wpa_s,
|
|
P2P_GROUP_REMOVAL_FORMATION_FAILED);
|
|
return;
|
|
}
|
|
|
|
wpa_msg_global(wpa_s->parent, 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) {
|
|
ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
|
|
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 {
|
|
ssid_txt = "";
|
|
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 if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
|
|
char psk[65];
|
|
wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
|
|
"%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr="
|
|
MACSTR "%s",
|
|
wpa_s->ifname, ssid_txt, ssid->frequency, psk,
|
|
MAC2STR(go_dev_addr),
|
|
persistent ? " [PERSISTENT]" : "");
|
|
wpas_p2p_cross_connect_setup(wpa_s);
|
|
wpas_p2p_set_group_idle_timeout(wpa_s);
|
|
} else {
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
|
|
"%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
|
|
"go_dev_addr=" MACSTR "%s",
|
|
wpa_s->ifname, ssid_txt,
|
|
ssid ? ssid->frequency : 0,
|
|
ssid && ssid->passphrase ? ssid->passphrase : "",
|
|
MAC2STR(go_dev_addr),
|
|
persistent ? " [PERSISTENT]" : "");
|
|
wpas_p2p_cross_connect_setup(wpa_s);
|
|
wpas_p2p_set_group_idle_timeout(wpa_s);
|
|
}
|
|
|
|
if (persistent)
|
|
network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
|
|
ssid, go_dev_addr);
|
|
else {
|
|
os_free(wpa_s->global->add_psk);
|
|
wpa_s->global->add_psk = NULL;
|
|
}
|
|
if (network_id < 0 && ssid)
|
|
network_id = ssid->id;
|
|
if (!client) {
|
|
wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
|
|
os_get_reltime(&wpa_s->global->p2p_go_wait_client);
|
|
}
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
|
|
return;
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
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");
|
|
wpas_p2p_fallback_to_go_neg(wpa_s, 0);
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
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;
|
|
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_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
|
|
MAC2STR(res->peer_interface_addr));
|
|
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);
|
|
else {
|
|
u16 dev_pw_id = DEV_PW_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->parent, 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_configured(void *ctx, void *data)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct p2p_go_neg_results *params = data;
|
|
struct wpa_ssid *ssid;
|
|
int network_id = -1;
|
|
|
|
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;
|
|
if (os_strlen(params->passphrase) > 0) {
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO,
|
|
P2P_EVENT_GROUP_STARTED
|
|
"%s GO ssid=\"%s\" freq=%d "
|
|
"passphrase=\"%s\" go_dev_addr=" MACSTR
|
|
"%s", wpa_s->ifname,
|
|
wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
|
|
ssid->frequency, params->passphrase,
|
|
MAC2STR(wpa_s->global->p2p_dev_addr),
|
|
params->persistent_group ?
|
|
" [PERSISTENT]" : "");
|
|
} else {
|
|
char psk[65];
|
|
wpa_snprintf_hex(psk, sizeof(psk), params->psk,
|
|
sizeof(params->psk));
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO,
|
|
P2P_EVENT_GROUP_STARTED
|
|
"%s GO ssid=\"%s\" freq=%d psk=%s "
|
|
"go_dev_addr=" MACSTR "%s",
|
|
wpa_s->ifname,
|
|
wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
|
|
ssid->frequency, psk,
|
|
MAC2STR(wpa_s->global->p2p_dev_addr),
|
|
params->persistent_group ?
|
|
" [PERSISTENT]" : "");
|
|
}
|
|
|
|
os_get_reltime(&wpa_s->global->p2p_go_wait_client);
|
|
if (params->persistent_group) {
|
|
network_id = wpas_p2p_store_persistent_group(
|
|
wpa_s->parent, ssid,
|
|
wpa_s->global->p2p_dev_addr);
|
|
wpas_p2p_add_psk_list(wpa_s, ssid);
|
|
}
|
|
if (network_id < 0)
|
|
network_id = ssid->id;
|
|
wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
|
|
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->parent, NULL);
|
|
eloop_register_timeout(
|
|
wpa_s->p2p_first_connection_timeout, 0,
|
|
wpas_p2p_group_formation_timeout,
|
|
wpa_s->parent, 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);
|
|
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;
|
|
}
|
|
|
|
|
|
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_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->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;
|
|
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->parent->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->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) if (s->n) d->n = os_strdup(s->n)
|
|
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_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->disassoc_low_ack = s->disassoc_low_ack;
|
|
d->disable_scan_offload = s->disable_scan_offload;
|
|
}
|
|
|
|
|
|
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) {
|
|
/* Try to avoid going over the IFNAMSIZ length limit */
|
|
os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
|
|
}
|
|
}
|
|
|
|
|
|
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 (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';
|
|
}
|
|
|
|
|
|
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);
|
|
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->parent = wpa_s;
|
|
group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
|
|
P2P_GROUP_INTERFACE_CLIENT;
|
|
wpa_s->global->p2p_group_formation = group_wpa_s;
|
|
|
|
wpas_p2p_clone_config(group_wpa_s, wpa_s);
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
|
|
{
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->parent, NULL);
|
|
if (wpa_s->global->p2p)
|
|
p2p_group_formation_failed(wpa_s->global->p2p);
|
|
else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
wpa_drv_p2p_group_formation_failed(wpa_s);
|
|
wpas_group_formation_completed(wpa_s, 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->parent, NULL);
|
|
eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
|
|
wpa_s->parent, NULL);
|
|
}
|
|
|
|
|
|
void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
|
|
{
|
|
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;
|
|
}
|
|
|
|
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 (wpa_s->p2p_go_ht40)
|
|
res->ht40 = 1;
|
|
if (wpa_s->p2p_go_vht)
|
|
res->vht = 1;
|
|
|
|
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) {
|
|
struct wpa_supplicant *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);
|
|
return;
|
|
}
|
|
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;
|
|
}
|
|
os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
|
|
wpa_s->pending_interface_name[0] = '\0';
|
|
group_wpa_s->p2p_in_provisioning = 1;
|
|
|
|
if (res->role_go)
|
|
wpas_start_wps_go(group_wpa_s, res, 1);
|
|
else
|
|
wpas_start_wps_enrollee(group_wpa_s, res);
|
|
} else {
|
|
wpa_s->p2p_in_provisioning = 1;
|
|
wpa_s->global->p2p_group_formation = wpa_s;
|
|
|
|
if (res->role_go)
|
|
wpas_start_wps_go(wpa_s, res, 1);
|
|
else
|
|
wpas_start_wps_enrollee(ctx, res);
|
|
}
|
|
|
|
wpa_s->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);
|
|
}
|
|
|
|
|
|
void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
|
|
" dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
|
|
|
|
wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
|
|
}
|
|
|
|
|
|
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 */
|
|
|
|
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",
|
|
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 : "");
|
|
#endif /* CONFIG_NO_STDOUT_DEBUG */
|
|
|
|
os_free(wfd_dev_info_hex);
|
|
|
|
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;
|
|
wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
wpa_drv_set_ap_wps_ie(wpa_s, NULL, 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");
|
|
return -1;
|
|
}
|
|
|
|
wpa_s->pending_listen_freq = freq;
|
|
wpa_s->pending_listen_duration = duration;
|
|
|
|
if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
|
|
"to remain on channel (%u MHz) for Listen "
|
|
"state", freq);
|
|
wpa_s->pending_listen_freq = 0;
|
|
return -1;
|
|
}
|
|
wpa_s->off_channel_freq = 0;
|
|
wpa_s->roc_waiting_drv_freq = freq;
|
|
|
|
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);
|
|
wpa_drv_probe_req_report(wpa_s, 0);
|
|
}
|
|
|
|
|
|
static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
|
|
}
|
|
|
|
|
|
/*
|
|
* DNS Header section is used only to calculate compression pointers, so the
|
|
* contents of this data does not matter, but the length needs to be reserved
|
|
* in the virtual packet.
|
|
*/
|
|
#define DNS_HEADER_LEN 12
|
|
|
|
/*
|
|
* 27-octet in-memory packet from P2P specification containing two implied
|
|
* queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
|
|
*/
|
|
#define P2P_SD_IN_MEMORY_LEN 27
|
|
|
|
static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
|
|
u8 **spos, const u8 *end)
|
|
{
|
|
while (*spos < end) {
|
|
u8 val = ((*spos)[0] & 0xc0) >> 6;
|
|
int len;
|
|
|
|
if (val == 1 || val == 2) {
|
|
/* These are reserved values in RFC 1035 */
|
|
wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
|
|
"sequence starting with 0x%x", val);
|
|
return -1;
|
|
}
|
|
|
|
if (val == 3) {
|
|
u16 offset;
|
|
u8 *spos_tmp;
|
|
|
|
/* Offset */
|
|
if (*spos + 2 > end) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No room for full "
|
|
"DNS offset field");
|
|
return -1;
|
|
}
|
|
|
|
offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
|
|
if (offset >= *spos - start) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
|
|
"pointer offset %u", offset);
|
|
return -1;
|
|
}
|
|
|
|
(*spos) += 2;
|
|
spos_tmp = start + offset;
|
|
return p2p_sd_dns_uncompress_label(upos, uend, start,
|
|
&spos_tmp,
|
|
*spos - 2);
|
|
}
|
|
|
|
/* Label */
|
|
len = (*spos)[0] & 0x3f;
|
|
if (len == 0)
|
|
return 0;
|
|
|
|
(*spos)++;
|
|
if (*spos + len > end) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
|
|
"sequence - no room for label with length "
|
|
"%u", len);
|
|
return -1;
|
|
}
|
|
|
|
if (*upos + len + 2 > uend)
|
|
return -2;
|
|
|
|
os_memcpy(*upos, *spos, len);
|
|
*spos += len;
|
|
*upos += len;
|
|
(*upos)[0] = '.';
|
|
(*upos)++;
|
|
(*upos)[0] = '\0';
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
|
|
* Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
|
|
* not large enough */
|
|
static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
|
|
size_t msg_len, size_t offset)
|
|
{
|
|
/* 27-octet in-memory packet from P2P specification */
|
|
const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
|
|
"\x04_udp\xC0\x11\x00\x0C\x00\x01";
|
|
u8 *tmp, *end, *spos;
|
|
char *upos, *uend;
|
|
int ret = 0;
|
|
|
|
if (buf_len < 2)
|
|
return -1;
|
|
if (offset > msg_len)
|
|
return -1;
|
|
|
|
tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
|
|
if (tmp == NULL)
|
|
return -1;
|
|
spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
|
|
end = spos + msg_len;
|
|
spos += offset;
|
|
|
|
os_memset(tmp, 0, DNS_HEADER_LEN);
|
|
os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
|
|
os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
|
|
|
|
upos = buf;
|
|
uend = buf + buf_len;
|
|
|
|
ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
|
|
if (ret) {
|
|
os_free(tmp);
|
|
return ret;
|
|
}
|
|
|
|
if (upos == buf) {
|
|
upos[0] = '.';
|
|
upos[1] = '\0';
|
|
} else if (upos[-1] == '.')
|
|
upos[-1] = '\0';
|
|
|
|
os_free(tmp);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static struct p2p_srv_bonjour *
|
|
wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
|
|
const struct wpabuf *query)
|
|
{
|
|
struct p2p_srv_bonjour *bsrv;
|
|
size_t len;
|
|
|
|
len = wpabuf_len(query);
|
|
dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
|
|
struct p2p_srv_bonjour, list) {
|
|
if (len == wpabuf_len(bsrv->query) &&
|
|
os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
|
|
len) == 0)
|
|
return bsrv;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static struct p2p_srv_upnp *
|
|
wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
|
|
const char *service)
|
|
{
|
|
struct p2p_srv_upnp *usrv;
|
|
|
|
dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
|
|
struct p2p_srv_upnp, list) {
|
|
if (version == usrv->version &&
|
|
os_strcmp(service, usrv->service) == 0)
|
|
return usrv;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
|
|
u8 srv_trans_id)
|
|
{
|
|
u8 *len_pos;
|
|
|
|
if (wpabuf_tailroom(resp) < 5)
|
|
return;
|
|
|
|
/* Length (to be filled) */
|
|
len_pos = wpabuf_put(resp, 2);
|
|
wpabuf_put_u8(resp, srv_proto);
|
|
wpabuf_put_u8(resp, srv_trans_id);
|
|
/* Status Code */
|
|
wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
|
|
/* Response Data: empty */
|
|
WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
|
|
}
|
|
|
|
|
|
static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
|
|
struct wpabuf *resp, u8 srv_trans_id)
|
|
{
|
|
struct p2p_srv_bonjour *bsrv;
|
|
u8 *len_pos;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
|
|
|
|
if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
|
|
return;
|
|
}
|
|
|
|
dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
|
|
struct p2p_srv_bonjour, list) {
|
|
if (wpabuf_tailroom(resp) <
|
|
5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
|
|
return;
|
|
/* Length (to be filled) */
|
|
len_pos = wpabuf_put(resp, 2);
|
|
wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
|
|
wpabuf_put_u8(resp, srv_trans_id);
|
|
/* Status Code */
|
|
wpabuf_put_u8(resp, P2P_SD_SUCCESS);
|
|
wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
|
|
wpabuf_head(bsrv->resp),
|
|
wpabuf_len(bsrv->resp));
|
|
/* Response Data */
|
|
wpabuf_put_buf(resp, bsrv->query); /* Key */
|
|
wpabuf_put_buf(resp, bsrv->resp); /* Value */
|
|
WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
|
|
2);
|
|
}
|
|
}
|
|
|
|
|
|
static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
|
|
size_t query_len)
|
|
{
|
|
char str_rx[256], str_srv[256];
|
|
|
|
if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
|
|
return 0; /* Too short to include DNS Type and Version */
|
|
if (os_memcmp(query + query_len - 3,
|
|
wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
|
|
3) != 0)
|
|
return 0; /* Mismatch in DNS Type or Version */
|
|
if (query_len == wpabuf_len(bsrv->query) &&
|
|
os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
|
|
return 1; /* Binary match */
|
|
|
|
if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
|
|
0))
|
|
return 0; /* Failed to uncompress query */
|
|
if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
|
|
wpabuf_head(bsrv->query),
|
|
wpabuf_len(bsrv->query) - 3, 0))
|
|
return 0; /* Failed to uncompress service */
|
|
|
|
return os_strcmp(str_rx, str_srv) == 0;
|
|
}
|
|
|
|
|
|
static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
|
|
struct wpabuf *resp, u8 srv_trans_id,
|
|
const u8 *query, size_t query_len)
|
|
{
|
|
struct p2p_srv_bonjour *bsrv;
|
|
u8 *len_pos;
|
|
int matches = 0;
|
|
|
|
wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
|
|
query, query_len);
|
|
if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
|
|
wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
|
|
srv_trans_id);
|
|
return;
|
|
}
|
|
|
|
if (query_len == 0) {
|
|
wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
|
|
return;
|
|
}
|
|
|
|
dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
|
|
struct p2p_srv_bonjour, list) {
|
|
if (!match_bonjour_query(bsrv, query, query_len))
|
|
continue;
|
|
|
|
if (wpabuf_tailroom(resp) <
|
|
5 + query_len + wpabuf_len(bsrv->resp))
|
|
return;
|
|
|
|
matches++;
|
|
|
|
/* Length (to be filled) */
|
|
len_pos = wpabuf_put(resp, 2);
|
|
wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
|
|
wpabuf_put_u8(resp, srv_trans_id);
|
|
|
|
/* Status Code */
|
|
wpabuf_put_u8(resp, P2P_SD_SUCCESS);
|
|
wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
|
|
wpabuf_head(bsrv->resp),
|
|
wpabuf_len(bsrv->resp));
|
|
|
|
/* Response Data */
|
|
wpabuf_put_data(resp, query, query_len); /* Key */
|
|
wpabuf_put_buf(resp, bsrv->resp); /* Value */
|
|
|
|
WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
|
|
}
|
|
|
|
if (matches == 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
|
|
"available");
|
|
if (wpabuf_tailroom(resp) < 5)
|
|
return;
|
|
|
|
/* Length (to be filled) */
|
|
len_pos = wpabuf_put(resp, 2);
|
|
wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
|
|
wpabuf_put_u8(resp, srv_trans_id);
|
|
|
|
/* Status Code */
|
|
wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
|
|
/* Response Data: empty */
|
|
WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
|
|
2);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
|
|
struct wpabuf *resp, u8 srv_trans_id)
|
|
{
|
|
struct p2p_srv_upnp *usrv;
|
|
u8 *len_pos;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
|
|
|
|
if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
|
|
return;
|
|
}
|
|
|
|
dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
|
|
struct p2p_srv_upnp, list) {
|
|
if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
|
|
return;
|
|
|
|
/* Length (to be filled) */
|
|
len_pos = wpabuf_put(resp, 2);
|
|
wpabuf_put_u8(resp, P2P_SERV_UPNP);
|
|
wpabuf_put_u8(resp, srv_trans_id);
|
|
|
|
/* Status Code */
|
|
wpabuf_put_u8(resp, P2P_SD_SUCCESS);
|
|
/* Response Data */
|
|
wpabuf_put_u8(resp, usrv->version);
|
|
wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
|
|
usrv->service);
|
|
wpabuf_put_str(resp, usrv->service);
|
|
WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
|
|
2);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
|
|
struct wpabuf *resp, u8 srv_trans_id,
|
|
const u8 *query, size_t query_len)
|
|
{
|
|
struct p2p_srv_upnp *usrv;
|
|
u8 *len_pos;
|
|
u8 version;
|
|
char *str;
|
|
int count = 0;
|
|
|
|
wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
|
|
query, query_len);
|
|
|
|
if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
|
|
wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
|
|
srv_trans_id);
|
|
return;
|
|
}
|
|
|
|
if (query_len == 0) {
|
|
wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
|
|
return;
|
|
}
|
|
|
|
if (wpabuf_tailroom(resp) < 5)
|
|
return;
|
|
|
|
/* Length (to be filled) */
|
|
len_pos = wpabuf_put(resp, 2);
|
|
wpabuf_put_u8(resp, P2P_SERV_UPNP);
|
|
wpabuf_put_u8(resp, srv_trans_id);
|
|
|
|
version = query[0];
|
|
str = os_malloc(query_len);
|
|
if (str == NULL)
|
|
return;
|
|
os_memcpy(str, query + 1, query_len - 1);
|
|
str[query_len - 1] = '\0';
|
|
|
|
dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
|
|
struct p2p_srv_upnp, list) {
|
|
if (version != usrv->version)
|
|
continue;
|
|
|
|
if (os_strcmp(str, "ssdp:all") != 0 &&
|
|
os_strstr(usrv->service, str) == NULL)
|
|
continue;
|
|
|
|
if (wpabuf_tailroom(resp) < 2)
|
|
break;
|
|
if (count == 0) {
|
|
/* Status Code */
|
|
wpabuf_put_u8(resp, P2P_SD_SUCCESS);
|
|
/* Response Data */
|
|
wpabuf_put_u8(resp, version);
|
|
} else
|
|
wpabuf_put_u8(resp, ',');
|
|
|
|
count++;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
|
|
usrv->service);
|
|
if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
|
|
break;
|
|
wpabuf_put_str(resp, usrv->service);
|
|
}
|
|
os_free(str);
|
|
|
|
if (count == 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
|
|
"available");
|
|
/* Status Code */
|
|
wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
|
|
/* Response Data: empty */
|
|
}
|
|
|
|
WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_WIFI_DISPLAY
|
|
static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
|
|
struct wpabuf *resp, u8 srv_trans_id,
|
|
const u8 *query, size_t query_len)
|
|
{
|
|
const u8 *pos;
|
|
u8 role;
|
|
u8 *len_pos;
|
|
|
|
wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
|
|
|
|
if (!wpa_s->global->wifi_display) {
|
|
wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
|
|
wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
|
|
srv_trans_id);
|
|
return;
|
|
}
|
|
|
|
if (query_len < 1) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
|
|
"Role");
|
|
return;
|
|
}
|
|
|
|
if (wpabuf_tailroom(resp) < 5)
|
|
return;
|
|
|
|
pos = query;
|
|
role = *pos++;
|
|
wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
|
|
|
|
/* TODO: role specific handling */
|
|
|
|
/* Length (to be filled) */
|
|
len_pos = wpabuf_put(resp, 2);
|
|
wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
|
|
wpabuf_put_u8(resp, srv_trans_id);
|
|
wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
|
|
|
|
while (pos < query + query_len) {
|
|
if (*pos < MAX_WFD_SUBELEMS &&
|
|
wpa_s->global->wfd_subelem[*pos] &&
|
|
wpabuf_tailroom(resp) >=
|
|
wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
|
|
"subelement %u", *pos);
|
|
wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
|
|
}
|
|
pos++;
|
|
}
|
|
|
|
WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
|
|
}
|
|
#endif /* CONFIG_WIFI_DISPLAY */
|
|
|
|
|
|
void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
|
|
u16 update_indic, const u8 *tlvs, size_t tlvs_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
const u8 *pos = tlvs;
|
|
const u8 *end = tlvs + tlvs_len;
|
|
const u8 *tlv_end;
|
|
u16 slen;
|
|
struct wpabuf *resp;
|
|
u8 srv_proto, srv_trans_id;
|
|
size_t buf_len;
|
|
char *buf;
|
|
|
|
wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
|
|
tlvs, tlvs_len);
|
|
buf_len = 2 * tlvs_len + 1;
|
|
buf = os_malloc(buf_len);
|
|
if (buf) {
|
|
wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
|
|
wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
|
|
MACSTR " %u %u %s",
|
|
freq, MAC2STR(sa), dialog_token, update_indic,
|
|
buf);
|
|
os_free(buf);
|
|
}
|
|
|
|
if (wpa_s->p2p_sd_over_ctrl_iface) {
|
|
wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
|
|
update_indic, tlvs, tlvs_len);
|
|
return; /* to be processed by an external program */
|
|
}
|
|
|
|
resp = wpabuf_alloc(10000);
|
|
if (resp == NULL)
|
|
return;
|
|
|
|
while (pos + 1 < end) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
|
|
slen = WPA_GET_LE16(pos);
|
|
pos += 2;
|
|
if (pos + slen > end || slen < 2) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
|
|
"length");
|
|
wpabuf_free(resp);
|
|
return;
|
|
}
|
|
tlv_end = pos + slen;
|
|
|
|
srv_proto = *pos++;
|
|
wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
|
|
srv_proto);
|
|
srv_trans_id = *pos++;
|
|
wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
|
|
srv_trans_id);
|
|
|
|
wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
|
|
pos, tlv_end - pos);
|
|
|
|
|
|
if (wpa_s->force_long_sd) {
|
|
wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
|
|
"response");
|
|
wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
|
|
wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
|
|
goto done;
|
|
}
|
|
|
|
switch (srv_proto) {
|
|
case P2P_SERV_ALL_SERVICES:
|
|
wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
|
|
"for all services");
|
|
if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
|
|
dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No service "
|
|
"discovery protocols available");
|
|
wpas_sd_add_proto_not_avail(
|
|
resp, P2P_SERV_ALL_SERVICES,
|
|
srv_trans_id);
|
|
break;
|
|
}
|
|
wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
|
|
wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
|
|
break;
|
|
case P2P_SERV_BONJOUR:
|
|
wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
|
|
pos, tlv_end - pos);
|
|
break;
|
|
case P2P_SERV_UPNP:
|
|
wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
|
|
pos, tlv_end - pos);
|
|
break;
|
|
#ifdef CONFIG_WIFI_DISPLAY
|
|
case P2P_SERV_WIFI_DISPLAY:
|
|
wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
|
|
pos, tlv_end - pos);
|
|
break;
|
|
#endif /* CONFIG_WIFI_DISPLAY */
|
|
default:
|
|
wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
|
|
"protocol %u", srv_proto);
|
|
wpas_sd_add_proto_not_avail(resp, srv_proto,
|
|
srv_trans_id);
|
|
break;
|
|
}
|
|
|
|
pos = tlv_end;
|
|
}
|
|
|
|
done:
|
|
wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
|
|
update_indic, tlvs, tlvs_len);
|
|
|
|
wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
|
|
|
|
wpabuf_free(resp);
|
|
}
|
|
|
|
|
|
void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
|
|
const u8 *tlvs, size_t tlvs_len)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
const u8 *pos = tlvs;
|
|
const u8 *end = tlvs + tlvs_len;
|
|
const u8 *tlv_end;
|
|
u16 slen;
|
|
size_t buf_len;
|
|
char *buf;
|
|
|
|
wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
|
|
tlvs, tlvs_len);
|
|
if (tlvs_len > 1500) {
|
|
/* TODO: better way for handling this */
|
|
wpa_msg_ctrl(wpa_s, MSG_INFO,
|
|
P2P_EVENT_SERV_DISC_RESP MACSTR
|
|
" %u <long response: %u bytes>",
|
|
MAC2STR(sa), update_indic,
|
|
(unsigned int) tlvs_len);
|
|
} else {
|
|
buf_len = 2 * tlvs_len + 1;
|
|
buf = os_malloc(buf_len);
|
|
if (buf) {
|
|
wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
|
|
wpa_msg_ctrl(wpa_s, MSG_INFO,
|
|
P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
|
|
MAC2STR(sa), update_indic, buf);
|
|
os_free(buf);
|
|
}
|
|
}
|
|
|
|
while (pos < end) {
|
|
u8 srv_proto, srv_trans_id, status;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
|
|
slen = WPA_GET_LE16(pos);
|
|
pos += 2;
|
|
if (pos + slen > end || slen < 3) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
|
|
"length");
|
|
return;
|
|
}
|
|
tlv_end = pos + slen;
|
|
|
|
srv_proto = *pos++;
|
|
wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
|
|
srv_proto);
|
|
srv_trans_id = *pos++;
|
|
wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
|
|
srv_trans_id);
|
|
status = *pos++;
|
|
wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
|
|
status);
|
|
|
|
wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
|
|
pos, tlv_end - pos);
|
|
|
|
pos = tlv_end;
|
|
}
|
|
|
|
wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
|
|
}
|
|
|
|
|
|
u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
|
|
const struct wpabuf *tlvs)
|
|
{
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return 0;
|
|
return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
|
|
}
|
|
|
|
|
|
u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
|
|
u8 version, const char *query)
|
|
{
|
|
struct wpabuf *tlvs;
|
|
u64 ret;
|
|
|
|
tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
|
|
if (tlvs == NULL)
|
|
return 0;
|
|
wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
|
|
wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
|
|
wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
|
|
wpabuf_put_u8(tlvs, version);
|
|
wpabuf_put_str(tlvs, query);
|
|
ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
|
|
wpabuf_free(tlvs);
|
|
return ret;
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_WIFI_DISPLAY
|
|
|
|
static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
|
|
const struct wpabuf *tlvs)
|
|
{
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return 0;
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return 0;
|
|
return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
|
|
}
|
|
|
|
|
|
#define MAX_WFD_SD_SUBELEMS 20
|
|
|
|
static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
|
|
const char *subelems)
|
|
{
|
|
u8 *len;
|
|
const char *pos;
|
|
int val;
|
|
int count = 0;
|
|
|
|
len = wpabuf_put(tlvs, 2);
|
|
wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
|
|
wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
|
|
|
|
wpabuf_put_u8(tlvs, role);
|
|
|
|
pos = subelems;
|
|
while (*pos) {
|
|
val = atoi(pos);
|
|
if (val >= 0 && val < 256) {
|
|
wpabuf_put_u8(tlvs, val);
|
|
count++;
|
|
if (count == MAX_WFD_SD_SUBELEMS)
|
|
break;
|
|
}
|
|
pos = os_strchr(pos + 1, ',');
|
|
if (pos == NULL)
|
|
break;
|
|
pos++;
|
|
}
|
|
|
|
WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
|
|
}
|
|
|
|
|
|
u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
|
|
const u8 *dst, const char *role)
|
|
{
|
|
struct wpabuf *tlvs;
|
|
u64 ret;
|
|
const char *subelems;
|
|
u8 id = 1;
|
|
|
|
subelems = os_strchr(role, ' ');
|
|
if (subelems == NULL)
|
|
return 0;
|
|
subelems++;
|
|
|
|
tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
|
|
if (tlvs == NULL)
|
|
return 0;
|
|
|
|
if (os_strstr(role, "[source]"))
|
|
wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
|
|
if (os_strstr(role, "[pri-sink]"))
|
|
wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
|
|
if (os_strstr(role, "[sec-sink]"))
|
|
wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
|
|
if (os_strstr(role, "[source+sink]"))
|
|
wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
|
|
|
|
ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
|
|
wpabuf_free(tlvs);
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_WIFI_DISPLAY */
|
|
|
|
|
|
int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
|
|
{
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
return p2p_sd_cancel_request(wpa_s->global->p2p,
|
|
(void *) (uintptr_t) req);
|
|
}
|
|
|
|
|
|
void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
|
|
const u8 *dst, u8 dialog_token,
|
|
const struct wpabuf *resp_tlvs)
|
|
{
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
|
|
wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
|
|
resp_tlvs);
|
|
return;
|
|
}
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
|
|
resp_tlvs);
|
|
}
|
|
|
|
|
|
void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
|
|
wpa_drv_p2p_service_update(wpa_s);
|
|
return;
|
|
}
|
|
if (wpa_s->global->p2p)
|
|
p2p_sd_service_update(wpa_s->global->p2p);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
|
|
{
|
|
dl_list_del(&bsrv->list);
|
|
wpabuf_free(bsrv->query);
|
|
wpabuf_free(bsrv->resp);
|
|
os_free(bsrv);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
|
|
{
|
|
dl_list_del(&usrv->list);
|
|
os_free(usrv->service);
|
|
os_free(usrv);
|
|
}
|
|
|
|
|
|
void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct p2p_srv_bonjour *bsrv, *bn;
|
|
struct p2p_srv_upnp *usrv, *un;
|
|
|
|
dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
|
|
struct p2p_srv_bonjour, list)
|
|
wpas_p2p_srv_bonjour_free(bsrv);
|
|
|
|
dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
|
|
struct p2p_srv_upnp, list)
|
|
wpas_p2p_srv_upnp_free(usrv);
|
|
|
|
wpas_p2p_sd_service_update(wpa_s);
|
|
}
|
|
|
|
|
|
int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
|
|
struct wpabuf *query, struct wpabuf *resp)
|
|
{
|
|
struct p2p_srv_bonjour *bsrv;
|
|
|
|
bsrv = os_zalloc(sizeof(*bsrv));
|
|
if (bsrv == NULL)
|
|
return -1;
|
|
bsrv->query = query;
|
|
bsrv->resp = resp;
|
|
dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
|
|
|
|
wpas_p2p_sd_service_update(wpa_s);
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
|
|
const struct wpabuf *query)
|
|
{
|
|
struct p2p_srv_bonjour *bsrv;
|
|
|
|
bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
|
|
if (bsrv == NULL)
|
|
return -1;
|
|
wpas_p2p_srv_bonjour_free(bsrv);
|
|
wpas_p2p_sd_service_update(wpa_s);
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
|
|
const char *service)
|
|
{
|
|
struct p2p_srv_upnp *usrv;
|
|
|
|
if (wpas_p2p_service_get_upnp(wpa_s, version, service))
|
|
return 0; /* Already listed */
|
|
usrv = os_zalloc(sizeof(*usrv));
|
|
if (usrv == NULL)
|
|
return -1;
|
|
usrv->version = version;
|
|
usrv->service = os_strdup(service);
|
|
if (usrv->service == NULL) {
|
|
os_free(usrv);
|
|
return -1;
|
|
}
|
|
dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
|
|
|
|
wpas_p2p_sd_service_update(wpa_s);
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
|
|
const char *service)
|
|
{
|
|
struct p2p_srv_upnp *usrv;
|
|
|
|
usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
|
|
if (usrv == NULL)
|
|
return -1;
|
|
wpas_p2p_srv_upnp_free(usrv);
|
|
wpas_p2p_sd_service_update(wpa_s);
|
|
return 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);
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
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;
|
|
}
|
|
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 : "");
|
|
params[sizeof(params) - 1] = '\0';
|
|
|
|
if (config_methods & WPS_CONFIG_DISPLAY) {
|
|
generated_pin = wps_generate_pin();
|
|
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);
|
|
}
|
|
|
|
|
|
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);
|
|
return;
|
|
}
|
|
|
|
if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
|
|
wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
|
|
os_snprintf(params, sizeof(params), " peer_go=%d",
|
|
wpa_s->pending_pd_use == AUTO_PD_JOIN);
|
|
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) {
|
|
generated_pin = wps_generate_pin();
|
|
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)
|
|
{
|
|
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");
|
|
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);
|
|
return;
|
|
}
|
|
|
|
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(const struct p2p_channels *channels, unsigned int freq)
|
|
{
|
|
if (channels == NULL)
|
|
return 1; /* Assume no restrictions */
|
|
return p2p_channels_includes_freq(channels, 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)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
struct wpa_ssid *s;
|
|
int res;
|
|
struct wpa_supplicant *grp;
|
|
|
|
if (!persistent_group) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
|
|
" to join an active group", MAC2STR(sa));
|
|
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;
|
|
}
|
|
/*
|
|
* 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");
|
|
} 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;
|
|
}
|
|
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);
|
|
|
|
/* Get one of the frequencies currently in use */
|
|
if (wpas_p2p_valid_oper_freqs(wpa_s, &res, 1) > 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, res);
|
|
|
|
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 = res;
|
|
}
|
|
}
|
|
|
|
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(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",
|
|
MAC2STR(sa), op_freq);
|
|
if (s) {
|
|
int go = s->mode == WPAS_MODE_P2P_GO;
|
|
wpas_p2p_group_add_persistent(
|
|
wpa_s, s, go, go ? op_freq : 0, 0, 0, NULL,
|
|
go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
|
|
} else if (bssid) {
|
|
wpa_s->user_initiated_pd = 0;
|
|
wpas_p2p_join(wpa_s, bssid, go_dev_addr,
|
|
wpa_s->p2p_wps_method, 0);
|
|
}
|
|
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));
|
|
}
|
|
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);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
|
|
struct wpa_ssid *ssid,
|
|
const u8 *peer, int inv)
|
|
{
|
|
size_t i;
|
|
|
|
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 * ETH_ALEN, peer,
|
|
ETH_ALEN) == 0)
|
|
break;
|
|
}
|
|
if (i >= ssid->num_p2p_clients) {
|
|
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 * ETH_ALEN,
|
|
ssid->p2p_client_list + (i + 1) * ETH_ALEN,
|
|
(ssid->num_p2p_clients - i - 1) * ETH_ALEN);
|
|
ssid->num_p2p_clients--;
|
|
#ifndef CONFIG_NO_CONFIG_WRITE
|
|
if (wpa_s->parent->conf->update_config &&
|
|
wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
#endif /* CONFIG_NO_CONFIG_WRITE */
|
|
}
|
|
|
|
|
|
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->parent, 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)
|
|
{
|
|
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) {
|
|
if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
|
|
wpas_remove_persistent_client(wpa_s, peer);
|
|
return; /* Invitation to active group */
|
|
}
|
|
|
|
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);
|
|
|
|
freq = wpa_s->p2p_persistent_go_freq;
|
|
if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
|
|
freq_included(channels, neg_freq)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use frequence %d MHz from invitation for GO mode",
|
|
neg_freq);
|
|
freq = neg_freq;
|
|
}
|
|
|
|
wpas_p2p_group_add_persistent(wpa_s, ssid,
|
|
ssid->mode == WPAS_MODE_P2P_GO,
|
|
freq,
|
|
wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
|
|
channels,
|
|
ssid->mode == WPAS_MODE_P2P_GO ?
|
|
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
|
|
0);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_disallowed_freq(struct wpa_global *global,
|
|
unsigned int freq)
|
|
{
|
|
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;
|
|
|
|
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 struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
|
|
u16 num_modes,
|
|
enum hostapd_hw_mode mode)
|
|
{
|
|
u16 i;
|
|
|
|
for (i = 0; i < num_modes; i++) {
|
|
if (modes[i].mode == mode)
|
|
return &modes[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
enum chan_allowed {
|
|
NOT_ALLOWED, PASSIVE_ONLY, ALLOWED
|
|
};
|
|
|
|
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_PASSIVE_SCAN |
|
|
HOSTAPD_CHAN_NO_IBSS))
|
|
return PASSIVE_ONLY;
|
|
return ALLOWED;
|
|
}
|
|
}
|
|
|
|
return NOT_ALLOWED;
|
|
}
|
|
|
|
|
|
struct p2p_oper_class_map {
|
|
enum hostapd_hw_mode mode;
|
|
u8 op_class;
|
|
u8 min_chan;
|
|
u8 max_chan;
|
|
u8 inc;
|
|
enum { BW20, BW40PLUS, BW40MINUS, BW80 } bw;
|
|
};
|
|
|
|
static struct p2p_oper_class_map op_class[] = {
|
|
{ HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
|
|
#if 0 /* Do not enable HT40 on 2 GHz for now */
|
|
{ HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
|
|
{ HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
|
|
#endif
|
|
{ HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
|
|
{ HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
|
|
{ HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
|
|
{ HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
|
|
{ HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
|
|
{ HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
|
|
|
|
/*
|
|
* IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
|
|
* frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
|
|
* 80 MHz, but currently use the following definition for simplicity
|
|
* (these center frequencies are not actual channels, which makes
|
|
* has_channel() fail). wpas_p2p_verify_80mhz() should take care of
|
|
* removing invalid channels.
|
|
*/
|
|
{ HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
|
|
{ -1, 0, 0, 0, 0, BW20 }
|
|
};
|
|
|
|
|
|
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 };
|
|
unsigned int 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 == PASSIVE_ONLY)
|
|
ret = PASSIVE_ONLY;
|
|
|
|
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 enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
|
|
struct hostapd_hw_modes *mode,
|
|
u8 channel, u8 bw)
|
|
{
|
|
int flag;
|
|
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);
|
|
}
|
|
|
|
if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
|
|
return NOT_ALLOWED;
|
|
if (res == PASSIVE_ONLY || res2 == PASSIVE_ONLY)
|
|
return PASSIVE_ONLY;
|
|
return res;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
|
|
struct p2p_channels *chan,
|
|
struct p2p_channels *cli_chan)
|
|
{
|
|
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; op_class[op].op_class; op++) {
|
|
struct p2p_oper_class_map *o = &op_class[op];
|
|
u8 ch;
|
|
struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
|
|
|
|
mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
|
|
if (mode == NULL)
|
|
continue;
|
|
for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
|
|
enum chan_allowed res;
|
|
res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
|
|
if (res == ALLOWED) {
|
|
if (reg == NULL) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
|
|
o->op_class);
|
|
reg = &chan->reg_class[cla];
|
|
cla++;
|
|
reg->reg_class = o->op_class;
|
|
}
|
|
reg->channel[reg->channels] = ch;
|
|
reg->channels++;
|
|
} else if (res == PASSIVE_ONLY &&
|
|
wpa_s->conf->p2p_add_cli_chan) {
|
|
if (cli_reg == NULL) {
|
|
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;
|
|
}
|
|
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; op_class[op].op_class; op++) {
|
|
struct p2p_oper_class_map *o = &op_class[op];
|
|
u8 ch;
|
|
|
|
for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
|
|
if (o->mode != HOSTAPD_MODE_IEEE80211A ||
|
|
o->bw == BW20 || 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);
|
|
}
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
static int wpas_go_connected(void *ctx, const u8 *dev_addr)
|
|
{
|
|
struct wpa_supplicant *wpa_s = ctx;
|
|
|
|
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
if (ssid == NULL)
|
|
continue;
|
|
if (ssid->mode != WPAS_MODE_INFRA)
|
|
continue;
|
|
if (wpa_s->wpa_state != WPA_COMPLETED &&
|
|
wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
|
|
continue;
|
|
if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
|
|
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)
|
|
{
|
|
struct wpa_interface iface;
|
|
struct wpa_supplicant *p2pdev_wpa_s;
|
|
char ifname[100];
|
|
char force_name[100];
|
|
int ret;
|
|
|
|
os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
|
|
wpa_s->ifname);
|
|
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;
|
|
iface.confname = wpa_s->confname;
|
|
p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
|
|
if (!p2pdev_wpa_s) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
|
|
return -1;
|
|
}
|
|
p2pdev_wpa_s->parent = wpa_s;
|
|
|
|
wpa_s->pending_interface_name[0] = '\0';
|
|
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;
|
|
unsigned int r;
|
|
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 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
|
|
struct p2p_params params;
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
|
|
os_memset(¶ms, 0, sizeof(params));
|
|
params.dev_name = wpa_s->conf->device_name;
|
|
os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
|
|
WPS_DEV_TYPE_LEN);
|
|
params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
|
|
os_memcpy(params.sec_dev_type,
|
|
wpa_s->conf->sec_device_type,
|
|
params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
|
|
|
|
if (wpa_drv_p2p_set_params(wpa_s, ¶ms) < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
|
|
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 (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;
|
|
} else {
|
|
p2p.reg_class = 81;
|
|
/*
|
|
* Pick one of the social channels randomly as the listen
|
|
* channel.
|
|
*/
|
|
os_get_random((u8 *) &r, sizeof(r));
|
|
p2p.channel = 1 + (r % 3) * 5;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", 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 {
|
|
p2p.op_reg_class = 81;
|
|
/*
|
|
* Use random operation channel from (1, 6, 11) if no other
|
|
* preference is indicated.
|
|
*/
|
|
os_get_random((u8 *) &r, sizeof(r));
|
|
p2p.op_channel = 1 + (r % 3) * 5;
|
|
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);
|
|
|
|
if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
|
|
"channel list");
|
|
return -1;
|
|
}
|
|
|
|
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;
|
|
|
|
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_group_formation_timeout, wpa_s, NULL);
|
|
eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
|
|
wpa_s->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);
|
|
|
|
/* 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.
|
|
*/
|
|
void wpas_p2p_deinit_global(struct wpa_global *global)
|
|
{
|
|
struct wpa_supplicant *wpa_s, *tmp;
|
|
|
|
wpa_s = global->ifaces;
|
|
if (wpa_s)
|
|
wpas_p2p_service_flush(wpa_s);
|
|
|
|
if (global->p2p == NULL)
|
|
return;
|
|
|
|
/* 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->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
|
|
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;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
|
|
return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
|
|
go_intent, own_interface_addr,
|
|
force_freq, persistent_group);
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return -1;
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
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;
|
|
}
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO,
|
|
P2P_EVENT_GROUP_FORMATION_FAILURE);
|
|
}
|
|
}
|
|
|
|
|
|
static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
|
|
{
|
|
int *freqs, res, num, i;
|
|
|
|
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(int));
|
|
if (!freqs)
|
|
return 1;
|
|
|
|
num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
|
|
wpa_s->num_multichan_concurrent);
|
|
if (num < 0) {
|
|
res = 1;
|
|
goto exit_free;
|
|
}
|
|
|
|
for (i = 0; i < num; i++) {
|
|
if (freqs[i] == 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;
|
|
}
|
|
}
|
|
|
|
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;
|
|
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);
|
|
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,
|
|
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");
|
|
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_persistent_id,
|
|
wpa_s->p2p_pd_before_go_neg,
|
|
wpa_s->p2p_go_ht40,
|
|
wpa_s->p2p_go_vht);
|
|
return;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
|
|
"try to join the group", join ? "" :
|
|
" in older scan");
|
|
if (!join)
|
|
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_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);
|
|
}
|
|
bss = wpa_bss_get_bssid_latest(wpa_s, wpa_s->pending_join_iface_addr);
|
|
if (bss) {
|
|
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 (freq > 0) {
|
|
u16 method;
|
|
|
|
if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO,
|
|
P2P_EVENT_GROUP_FORMATION_FAILURE
|
|
"reason=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;
|
|
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, 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);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
|
|
{
|
|
int ret;
|
|
struct wpa_driver_scan_params params;
|
|
struct wpabuf *wps_ie, *ies;
|
|
size_t ielen;
|
|
int freqs[2] = { 0, 0 };
|
|
|
|
os_memset(¶ms, 0, sizeof(params));
|
|
|
|
/* P2P Wildcard SSID */
|
|
params.num_ssids = 1;
|
|
params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
|
|
params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
|
|
p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
|
|
|
|
params.p2p_probe = 1;
|
|
params.extra_ies = wpabuf_head(ies);
|
|
params.extra_ies_len = wpabuf_len(ies);
|
|
if (freq > 0) {
|
|
freqs[0] = freq;
|
|
params.freqs = freqs;
|
|
}
|
|
|
|
/*
|
|
* 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 (!ret) {
|
|
os_get_reltime(&wpa_s->scan_trigger_time);
|
|
wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
|
|
MACSTR " dev " MACSTR ")%s",
|
|
MAC2STR(iface_addr), MAC2STR(dev_addr),
|
|
auto_join ? " (auto_join)" : "");
|
|
|
|
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(wpa_s, NULL);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
|
|
{
|
|
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;
|
|
} else {
|
|
/*
|
|
* 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.
|
|
*/
|
|
wpa_s->global->p2p_group_formation = wpa_s;
|
|
}
|
|
|
|
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_interface_addr, wpa_s->pending_join_iface_addr,
|
|
ETH_ALEN);
|
|
res.wps_method = wpa_s->pending_join_wps_method;
|
|
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));
|
|
}
|
|
|
|
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)
|
|
{
|
|
int *freqs, res;
|
|
unsigned int freq_in_use = 0, num, i;
|
|
|
|
freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
|
|
if (!freqs)
|
|
return -1;
|
|
|
|
num = get_shared_radio_freqs(wpa_s, freqs,
|
|
wpa_s->num_multichan_concurrent);
|
|
wpa_printf(MSG_DEBUG,
|
|
"P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u",
|
|
freq, wpa_s->num_multichan_concurrent, num);
|
|
|
|
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) {
|
|
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_in_use = 1;
|
|
}
|
|
|
|
if (num == wpa_s->num_multichan_concurrent && !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;
|
|
}
|
|
|
|
for (i = 0; i < num; i++) {
|
|
if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i]))
|
|
continue;
|
|
|
|
if (*pref_freq == 0 && num < wpa_s->num_multichan_concurrent) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
|
|
freqs[i]);
|
|
*pref_freq = freqs[i];
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
|
|
freqs[i]);
|
|
*force_freq = freqs[i];
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (i == num) {
|
|
if (num < wpa_s->num_multichan_concurrent && num > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Current operating channels are not available for P2P. Try to use another channel");
|
|
*force_freq = 0;
|
|
} else if (num < wpa_s->num_multichan_concurrent) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No current operating channels - try to use a new 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
|
|
* @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
|
|
* 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, int persistent_id, int pd,
|
|
int ht40, int vht)
|
|
{
|
|
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;
|
|
|
|
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;
|
|
}
|
|
|
|
os_free(wpa_s->global->add_psk);
|
|
wpa_s->global->add_psk = NULL;
|
|
|
|
if (go_intent < 0)
|
|
go_intent = wpa_s->conf->p2p_go_intent;
|
|
|
|
if (!auth)
|
|
wpa_s->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;
|
|
|
|
if (pin)
|
|
os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
|
|
else if (wps_method == WPS_PIN_DISPLAY) {
|
|
ret = wps_generate_pin();
|
|
os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
|
|
ret);
|
|
wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
|
|
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) < 0)
|
|
return -1;
|
|
return ret;
|
|
}
|
|
|
|
res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
|
|
go_intent == 15);
|
|
if (res)
|
|
return res;
|
|
wpas_p2p_set_own_freq_preference(wpa_s,
|
|
force_freq ? force_freq : pref_freq);
|
|
|
|
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_addr = wpa_s->own_addr;
|
|
|
|
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;
|
|
if (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;
|
|
}
|
|
}
|
|
|
|
|
|
static 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;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return wpa_drv_p2p_listen(wpa_s, timeout);
|
|
|
|
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->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
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->p2p_long_listen > 0)
|
|
wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
|
|
if (wpa_s->p2p_long_listen > 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
|
|
wpas_p2p_listen_start(wpa_s, wpa_s->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;
|
|
|
|
if (os_strcmp(ifname, "*") == 0) {
|
|
struct wpa_supplicant *prev;
|
|
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(prev);
|
|
}
|
|
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(wpa_s);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
|
|
{
|
|
unsigned int r;
|
|
|
|
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 {
|
|
os_get_random((u8 *) &r, sizeof(r));
|
|
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 {
|
|
os_get_random((u8 *) &r, sizeof(r));
|
|
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)) {
|
|
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_init_go_params(struct wpa_supplicant *wpa_s,
|
|
struct p2p_go_neg_results *params,
|
|
int freq, int ht40, int vht,
|
|
const struct p2p_channels *channels)
|
|
{
|
|
int res, *freqs;
|
|
unsigned int pref_freq;
|
|
unsigned int num, i;
|
|
|
|
os_memset(params, 0, sizeof(*params));
|
|
params->role_go = 1;
|
|
params->ht40 = ht40;
|
|
params->vht = vht;
|
|
if (freq) {
|
|
if (!freq_included(channels, freq)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
|
|
"accepted", freq);
|
|
return -1;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
|
|
"frequency %d MHz", freq);
|
|
params->freq = freq;
|
|
} else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
|
|
wpa_s->conf->p2p_oper_channel >= 1 &&
|
|
wpa_s->conf->p2p_oper_channel <= 11 &&
|
|
freq_included(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);
|
|
} else 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 == 126 ||
|
|
wpa_s->conf->p2p_oper_reg_class == 127) &&
|
|
freq_included(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);
|
|
} else if (wpa_s->conf->p2p_oper_channel == 0 &&
|
|
wpa_s->best_overall_freq > 0 &&
|
|
p2p_supported_freq_go(wpa_s->global->p2p,
|
|
wpa_s->best_overall_freq) &&
|
|
freq_included(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);
|
|
} else if (wpa_s->conf->p2p_oper_channel == 0 &&
|
|
wpa_s->best_24_freq > 0 &&
|
|
p2p_supported_freq_go(wpa_s->global->p2p,
|
|
wpa_s->best_24_freq) &&
|
|
freq_included(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);
|
|
} else if (wpa_s->conf->p2p_oper_channel == 0 &&
|
|
wpa_s->best_5_freq > 0 &&
|
|
p2p_supported_freq_go(wpa_s->global->p2p,
|
|
wpa_s->best_5_freq) &&
|
|
freq_included(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);
|
|
} else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
|
|
channels))) {
|
|
params->freq = pref_freq;
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
|
|
"channels", params->freq);
|
|
} else {
|
|
int chan;
|
|
for (chan = 0; chan < 11; chan++) {
|
|
params->freq = 2412 + chan * 5;
|
|
if (!wpas_p2p_disallowed_freq(wpa_s->global,
|
|
params->freq) &&
|
|
freq_included(channels, params->freq))
|
|
break;
|
|
}
|
|
if (chan == 11) {
|
|
wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
|
|
"allowed");
|
|
return -1;
|
|
}
|
|
wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
|
|
"known)", params->freq);
|
|
}
|
|
|
|
freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
|
|
if (!freqs)
|
|
return -1;
|
|
|
|
res = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
|
|
wpa_s->num_multichan_concurrent);
|
|
if (res < 0) {
|
|
os_free(freqs);
|
|
return -1;
|
|
}
|
|
num = res;
|
|
|
|
for (i = 0; i < num; i++) {
|
|
if (freq && freqs[i] == freq)
|
|
break;
|
|
if (!freq && freq_included(channels, freqs[i])) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
|
|
freqs[i]);
|
|
params->freq = freqs[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == num) {
|
|
if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
|
|
if (freq)
|
|
wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
|
|
else
|
|
wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
|
|
os_free(freqs);
|
|
return -1;
|
|
} else if (num == 0) {
|
|
wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
|
|
}
|
|
}
|
|
|
|
os_free(freqs);
|
|
return 0;
|
|
}
|
|
|
|
|
|
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)) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
|
|
"operations");
|
|
wpa_s->p2p_first_connection_timeout = 0;
|
|
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;
|
|
}
|
|
|
|
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
|
|
* @ht40: Start GO with 40 MHz channel width
|
|
* @vht: Start GO with VHT 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 ht40, int vht)
|
|
{
|
|
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);
|
|
|
|
freq = wpas_p2p_select_go_freq(wpa_s, freq);
|
|
if (freq < 0)
|
|
return -1;
|
|
|
|
if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
|
|
return -1;
|
|
if (params.freq &&
|
|
!p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
|
|
wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
|
|
"(%u MHz) is not supported for P2P uses",
|
|
params.freq);
|
|
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)
|
|
{
|
|
struct wpa_ssid *ssid;
|
|
|
|
wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
|
|
if (wpa_s == NULL)
|
|
return -1;
|
|
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;
|
|
wpa_config_set_network_defaults(ssid);
|
|
ssid->temporary = 1;
|
|
ssid->proto = WPA_PROTO_RSN;
|
|
ssid->pairwise_cipher = WPA_CIPHER_CCMP;
|
|
ssid->group_cipher = 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_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 freq, int ht40, int vht,
|
|
const struct p2p_channels *channels,
|
|
int connection_timeout)
|
|
{
|
|
struct p2p_go_neg_results params;
|
|
int go = 0;
|
|
|
|
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");
|
|
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_INFRA)
|
|
return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
|
|
|
|
if (ssid->mode != WPAS_MODE_P2P_GO)
|
|
return -1;
|
|
|
|
freq = wpas_p2p_select_go_freq(wpa_s, freq);
|
|
if (freq < 0)
|
|
return -1;
|
|
|
|
if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, 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;
|
|
|
|
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)
|
|
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->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return NULL;
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
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->cb_ctx = wpa_s;
|
|
cfg->ie_update = wpas_p2p_ie_update;
|
|
cfg->idle_update = wpas_p2p_idle_update;
|
|
|
|
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->parent,
|
|
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->parent, NULL);
|
|
} 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->parent, 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);
|
|
else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
wpa_drv_wps_success_cb(wpa_s, peer_addr);
|
|
wpas_group_formation_completed(wpa_s, 1);
|
|
}
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
u16 config_methods;
|
|
|
|
wpa_s->p2p_fallback_to_go_neg = 0;
|
|
wpa_s->pending_pd_use = NORMAL_PD;
|
|
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");
|
|
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->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
|
|
return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
|
|
config_methods,
|
|
use == WPAS_P2P_PD_FOR_JOIN);
|
|
}
|
|
|
|
if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
|
|
return -1;
|
|
|
|
return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
|
|
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;
|
|
|
|
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)
|
|
{
|
|
wpas_p2p_clear_pending_action_tx(wpa_s);
|
|
wpa_s->p2p_long_listen = 0;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return wpa_drv_p2p_find(wpa_s, timeout, type);
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
|
|
wpa_s->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);
|
|
}
|
|
|
|
|
|
static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpas_p2p_clear_pending_action_tx(wpa_s);
|
|
wpa_s->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);
|
|
wpa_s->global->p2p_cb_on_scan_complete = 0;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
|
|
wpa_drv_p2p_stop_find(wpa_s);
|
|
return 1;
|
|
}
|
|
|
|
if (wpa_s->global->p2p)
|
|
p2p_stop_find(wpa_s->global->p2p);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
|
|
{
|
|
if (wpas_p2p_stop_find_oper(wpa_s) > 0)
|
|
return;
|
|
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->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;
|
|
|
|
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->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->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;
|
|
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, 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)) {
|
|
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)
|
|
{
|
|
if (wpa_s->global->p2p_disabled)
|
|
return;
|
|
if (wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
|
|
}
|
|
|
|
|
|
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->p2p_long_listen = 0;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return wpa_drv_p2p_reject(wpa_s, addr);
|
|
|
|
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 ht40, int vht, int pref_freq)
|
|
{
|
|
enum p2p_invite_role role;
|
|
u8 *bssid = NULL;
|
|
int force_freq = 0;
|
|
int res;
|
|
int no_pref_freq_given = pref_freq == 0;
|
|
|
|
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;
|
|
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
|
|
bssid = wpa_s->own_addr;
|
|
} else {
|
|
role = P2P_INVITE_ROLE_CLIENT;
|
|
peer_addr = ssid->bssid;
|
|
}
|
|
wpa_s->pending_invite_ssid_id = ssid->id;
|
|
|
|
res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
|
|
role == P2P_INVITE_ROLE_GO);
|
|
if (res)
|
|
return res;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
|
|
ssid->ssid, ssid->ssid_len,
|
|
go_dev_addr, 1);
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
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;
|
|
}
|
|
|
|
return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
|
|
ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
|
|
1, pref_freq);
|
|
}
|
|
|
|
|
|
/* 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;
|
|
|
|
wpa_s->p2p_persistent_go_freq = 0;
|
|
wpa_s->p2p_go_ht40 = 0;
|
|
wpa_s->p2p_go_vht = 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->parent, 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->parent->pending_invite_ssid_id = -1;
|
|
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
|
|
ssid->ssid, ssid->ssid_len,
|
|
go_dev_addr, persistent);
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return -1;
|
|
|
|
res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
|
|
role == P2P_INVITE_ROLE_ACTIVE_GO);
|
|
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);
|
|
}
|
|
|
|
|
|
void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct wpa_ssid *ssid = wpa_s->current_ssid;
|
|
const char *ssid_txt;
|
|
u8 go_dev_addr[ETH_ALEN];
|
|
int network_id = -1;
|
|
int persistent;
|
|
int freq;
|
|
|
|
if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
|
|
eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
|
|
wpa_s->parent, NULL);
|
|
}
|
|
|
|
if (!wpa_s->show_group_started || !ssid)
|
|
goto done;
|
|
|
|
wpa_s->show_group_started = 0;
|
|
|
|
ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
|
|
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;
|
|
if (ssid->passphrase == NULL && ssid->psk_set) {
|
|
char psk[65];
|
|
wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
|
|
"%s client ssid=\"%s\" freq=%d psk=%s "
|
|
"go_dev_addr=" MACSTR "%s",
|
|
wpa_s->ifname, ssid_txt, freq, psk,
|
|
MAC2STR(go_dev_addr),
|
|
persistent ? " [PERSISTENT]" : "");
|
|
} else {
|
|
wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
|
|
"%s client ssid=\"%s\" freq=%d "
|
|
"passphrase=\"%s\" go_dev_addr=" MACSTR "%s",
|
|
wpa_s->ifname, ssid_txt, freq,
|
|
ssid->passphrase ? ssid->passphrase : "",
|
|
MAC2STR(go_dev_addr),
|
|
persistent ? " [PERSISTENT]" : "");
|
|
}
|
|
|
|
if (persistent)
|
|
network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
|
|
ssid, go_dev_addr);
|
|
if (network_id < 0)
|
|
network_id = ssid->id;
|
|
wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
|
|
|
|
done:
|
|
wpas_p2p_continue_after_scan(wpa_s);
|
|
}
|
|
|
|
|
|
int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
|
|
u32 interval1, u32 duration2, u32 interval2)
|
|
{
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return -1;
|
|
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;
|
|
|
|
return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
|
|
wpa_s->own_addr, wpa_s->assoc_freq,
|
|
duration1, interval1, duration2, interval2);
|
|
}
|
|
|
|
|
|
int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
|
|
unsigned int interval)
|
|
{
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
return -1;
|
|
|
|
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 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
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 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
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;
|
|
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;
|
|
} else {
|
|
reg_class = 81;
|
|
/*
|
|
* Pick one of the social channels randomly as the
|
|
* listen channel.
|
|
*/
|
|
os_get_random((u8 *) &r, sizeof(r));
|
|
channel = 1 + (r % 3) * 5;
|
|
}
|
|
ret = p2p_set_listen_channel(p2p, reg_class, channel);
|
|
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.
|
|
*/
|
|
os_get_random((u8 *) &r, sizeof(r));
|
|
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");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
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;
|
|
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
|
|
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->parent, 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->parent, 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->parent, 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)
|
|
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->parent, 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->parent)
|
|
wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
|
|
wpas_p2p_group_formation_failed(wpa_s);
|
|
return 1;
|
|
}
|
|
|
|
|
|
void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
|
|
{
|
|
struct p2p_channels chan, cli_chan;
|
|
|
|
if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
os_memset(&chan, 0, sizeof(chan));
|
|
os_memset(&cli_chan, 0, sizeof(cli_chan));
|
|
if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
|
|
wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
|
|
"channel list");
|
|
return;
|
|
}
|
|
|
|
p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
|
|
}
|
|
|
|
|
|
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->parent, NULL);
|
|
if (wpa_s->p2p_in_provisioning) {
|
|
wpas_group_formation_completed(wpa_s, 0);
|
|
break;
|
|
}
|
|
wpas_p2p_group_delete(wpa_s,
|
|
P2P_GROUP_REMOVAL_REQUESTED);
|
|
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 || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
|
|
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 || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
|
|
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->parent, 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->parent, 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 * 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->parent, 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_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->global->p2p_go_wait_client.sec = 0;
|
|
if (addr == NULL)
|
|
return;
|
|
wpas_p2p_add_persistent_group_client(wpa_s, addr);
|
|
}
|
|
|
|
|
|
static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
|
|
int group_added)
|
|
{
|
|
struct wpa_supplicant *group = wpa_s;
|
|
if (wpa_s->global->p2p_group_formation)
|
|
group = wpa_s->global->p2p_group_formation;
|
|
wpa_s = wpa_s->parent;
|
|
offchannel_send_action_done(wpa_s);
|
|
if (group_added)
|
|
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_persistent_id,
|
|
wpa_s->p2p_pd_before_go_neg,
|
|
wpa_s->p2p_go_ht40,
|
|
wpa_s->p2p_go_vht);
|
|
}
|
|
|
|
|
|
int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
|
|
{
|
|
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");
|
|
wpas_p2p_fallback_to_go_neg(wpa_s, 1);
|
|
|
|
return 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",
|
|
P2P_CONCURRENT_SEARCH_DELAY);
|
|
return P2P_CONCURRENT_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",
|
|
P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
|
|
return P2P_CONCURRENT_SEARCH_DELAY;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void wpas_p2p_continue_after_scan(struct wpa_supplicant *wpa_s)
|
|
{
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Station mode scan operation not "
|
|
"pending anymore (sta_scan_pending=%d "
|
|
"p2p_cb_on_scan_complete=%d)", wpa_s->sta_scan_pending,
|
|
wpa_s->global->p2p_cb_on_scan_complete);
|
|
wpa_s->sta_scan_pending = 0;
|
|
|
|
if (!wpa_s->global->p2p_cb_on_scan_complete)
|
|
return;
|
|
wpa_s->global->p2p_cb_on_scan_complete = 0;
|
|
|
|
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
|
|
return;
|
|
|
|
if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
|
|
"continued after successful connection");
|
|
p2p_increase_search_delay(wpa_s->global->p2p,
|
|
wpas_p2p_search_delay(wpa_s));
|
|
}
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
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->parent, 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) {
|
|
struct psk_list_entry *last;
|
|
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->parent, 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);
|
|
|
|
#ifndef CONFIG_NO_CONFIG_WRITE
|
|
if (wpa_s->parent->conf->update_config &&
|
|
wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
|
|
wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
|
|
#endif /* CONFIG_NO_CONFIG_WRITE */
|
|
}
|
|
|
|
|
|
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) {
|
|
#ifndef CONFIG_NO_CONFIG_WRITE
|
|
if (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");
|
|
#endif /* CONFIG_NO_CONFIG_WRITE */
|
|
}
|
|
}
|
|
|
|
|
|
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;
|
|
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
|
|
|
|
/* Remove from any persistent group */
|
|
for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
|
|
if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
|
|
continue;
|
|
if (!iface_addr)
|
|
wpas_remove_persistent_peer(wpa_s, s, peer, 0);
|
|
wpas_p2p_remove_psk(wpa_s->parent, 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->parent, 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->parent, 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;
|
|
}
|