![Davina Lu](/assets/img/avatar_default.png)
The Wi-Fi Alliance Multi-AP Specification v1.0 allows onboarding of a backhaul STA through WPS. To enable this, the backhaul STA needs to add a Multi-AP IE to the WFA vendor extension element in the WSC M1 message that indicates it supports the Multi-AP backhaul STA role. The Registrar (if it support Multi-AP onboarding) will respond to that with a WSC M8 message that also contains the Multi-AP IE, and that contains the credentials for the backhaul SSID (which may be different from the SSID on which WPS is performed). Introduce a new parameter to wpas_wps_start_pbc() and allow it to be set via control interface's new multi_ap=1 parameter of WPS_PBC call. multi_ap_backhaul_sta is set to 1 in the automatically created SSID. Thus, if the AP does not support Multi-AP, association will fail and WPS will be terminated. Only wps_pbc is supported. This commit adds the multi_ap argument only to the control socket interface, not to the D-Bus interface. Since WPS associates with the fronthaul BSS instead of the backhaul BSS, we should not drop association if the AP announces fronthaul-only BSS. Still, we should only do that in the specific case of WPS. Therefore, add a check to multi_ap_process_assoc_resp() to allow association with a fronthaul-only BSS if and only if key_mgmt contains WPS. Signed-off-by: Davina Lu <ylu@quantenna.com> Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Daniel Golle <daniel@makrotopia.org> Cc: Marianna Carrera <marianna.carrera.so@quantenna.com>
156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/*
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* WPA Supplicant / dbus-based control interface (WPS)
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* Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
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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 <dbus/dbus.h>
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#include "common.h"
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#include "../config.h"
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#include "../wpa_supplicant_i.h"
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#include "../wps_supplicant.h"
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#include "dbus_old.h"
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#include "dbus_old_handlers.h"
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/**
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* wpas_dbus_iface_wps_pbc - Request credentials using WPS PBC method
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* @message: Pointer to incoming dbus message
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* @wpa_s: %wpa_supplicant data structure
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* Returns: A dbus message containing a UINT32 indicating success (1) or
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* failure (0)
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*
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* Handler function for "wpsPbc" method call
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*/
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DBusMessage * wpas_dbus_iface_wps_pbc(DBusMessage *message,
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struct wpa_supplicant *wpa_s)
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{
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char *arg_bssid = NULL;
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u8 bssid[ETH_ALEN];
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int ret = 0;
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if (!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg_bssid,
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DBUS_TYPE_INVALID))
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return wpas_dbus_new_invalid_opts_error(message, NULL);
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if (os_strcmp(arg_bssid, "any") == 0)
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ret = wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
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else if (!hwaddr_aton(arg_bssid, bssid))
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ret = wpas_wps_start_pbc(wpa_s, bssid, 0, 0);
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else {
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return wpas_dbus_new_invalid_opts_error(message,
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"Invalid BSSID");
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}
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if (ret < 0) {
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return dbus_message_new_error(
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message, WPAS_ERROR_WPS_PBC_ERROR,
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"Could not start PBC negotiation");
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}
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return wpas_dbus_new_success_reply(message);
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}
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/**
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* wpas_dbus_iface_wps_pin - Establish the PIN number of the enrollee
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* @message: Pointer to incoming dbus message
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* @wpa_s: %wpa_supplicant data structure
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* Returns: A dbus message containing a UINT32 indicating success (1) or
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* failure (0)
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*
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* Handler function for "wpsPin" method call
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*/
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DBusMessage * wpas_dbus_iface_wps_pin(DBusMessage *message,
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struct wpa_supplicant *wpa_s)
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{
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DBusMessage *reply = NULL;
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char *arg_bssid;
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char *pin = NULL;
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u8 bssid[ETH_ALEN], *_bssid = NULL;
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int ret;
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char npin[9];
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if (!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg_bssid,
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DBUS_TYPE_STRING, &pin, DBUS_TYPE_INVALID))
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return wpas_dbus_new_invalid_opts_error(message, NULL);
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if (os_strcmp(arg_bssid, "any") == 0)
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_bssid = NULL;
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else if (!hwaddr_aton(arg_bssid, bssid))
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_bssid = bssid;
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else {
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return wpas_dbus_new_invalid_opts_error(message,
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"Invalid BSSID");
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}
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if (os_strlen(pin) > 0)
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ret = wpas_wps_start_pin(wpa_s, _bssid, pin, 0,
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DEV_PW_DEFAULT);
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else
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ret = wpas_wps_start_pin(wpa_s, _bssid, NULL, 0,
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DEV_PW_DEFAULT);
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if (ret < 0) {
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return dbus_message_new_error(message,
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WPAS_ERROR_WPS_PIN_ERROR,
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"Could not init PIN");
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}
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reply = dbus_message_new_method_return(message);
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if (reply == NULL)
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return NULL;
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if (ret > 0) {
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ret = os_snprintf(npin, sizeof(npin), "%08d", ret);
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if (os_snprintf_error(sizeof(npin), ret))
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return wpas_dbus_new_invalid_opts_error(message,
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"invalid PIN");
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pin = npin;
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}
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dbus_message_append_args(reply, DBUS_TYPE_STRING, &pin,
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DBUS_TYPE_INVALID);
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return reply;
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}
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/**
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* wpas_dbus_iface_wps_reg - Request credentials using the PIN of the AP
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* @message: Pointer to incoming dbus message
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* @wpa_s: %wpa_supplicant data structure
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* Returns: A dbus message containing a UINT32 indicating success (1) or
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* failure (0)
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*
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* Handler function for "wpsReg" method call
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*/
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DBusMessage * wpas_dbus_iface_wps_reg(DBusMessage *message,
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struct wpa_supplicant *wpa_s)
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{
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char *arg_bssid;
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char *pin = NULL;
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u8 bssid[ETH_ALEN];
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int ret = 0;
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if (!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg_bssid,
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DBUS_TYPE_STRING, &pin, DBUS_TYPE_INVALID))
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return wpas_dbus_new_invalid_opts_error(message, NULL);
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if (!hwaddr_aton(arg_bssid, bssid))
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ret = wpas_wps_start_reg(wpa_s, bssid, pin, NULL);
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else {
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return wpas_dbus_new_invalid_opts_error(message,
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"Invalid BSSID");
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}
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if (ret < 0) {
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return dbus_message_new_error(message,
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WPAS_ERROR_WPS_REG_ERROR,
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"Could not request credentials");
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}
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return wpas_dbus_new_success_reply(message);
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}
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