wsc: Add initial PushButton SM

Makefile.am

@@ -68,6 +68,7 @@ src_iwd_SOURCES = src/main.c linux/nl80211.h linux/kdbus.h \
 					src/storage.h src/storage.c \
 					src/network.h src/network.c \
 					src/wscutil.h src/wscutil.c \
+					src/wsc.h src/wsc.c \
 					iwd.h
 src_iwd_LDADD = ell/libell-internal.la
 

src/wsc.c

@@ -0,0 +1,100 @@
+/*
+ *
+ *  Wireless daemon for Linux
+ *
+ *  Copyright (C) 2015  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <errno.h>
+#include <ell/ell.h>
+
+#include "scan.h"
+#include "ie.h"
+#include "wscutil.h"
+#include "wsc.h"
+
+#define WALK_TIME 120
+
+struct wsc_sm {
+	uint8_t *wsc_ies;
+	size_t wsc_ies_size;
+	struct l_timeout *walk_timer;
+};
+
+struct wsc_sm *wsc_sm_new_pushbutton(uint32_t ifindex, const uint8_t *addr,
+					uint32_t bands)
+{
+	static const uint8_t wfa_oui[] = { 0x00, 0x50, 0xF2 };
+	struct wsc_sm *sm;
+	struct wsc_probe_request req;
+	uint8_t *wsc_data;
+	size_t wsc_data_size;
+
+	memset(&req, 0, sizeof(req));
+
+	req.version2 = true;
+	req.request_type = WSC_REQUEST_TYPE_ENROLLEE_INFO;
+
+	/* TODO: Grab from configuration file ? */
+	req.config_methods = WSC_CONFIGURATION_METHOD_VIRTUAL_PUSH_BUTTON |
+				WSC_CONFIGURATION_METHOD_KEYPAD;
+
+	if (!wsc_uuid_from_addr(addr, req.uuid_e))
+		return NULL;
+
+	/* TODO: Grab from configuration file ? */
+	req.primary_device_type.category = 255;
+	memcpy(req.primary_device_type.oui, wfa_oui, 3);
+	req.primary_device_type.oui_type = 0x04;
+	req.primary_device_type.subcategory = 0;
+
+	if (bands & SCAN_BAND_2_4_GHZ)
+		req.rf_bands |= WSC_RF_BAND_2_4_GHZ;
+	if (bands & SCAN_BAND_5_GHZ)
+		req.rf_bands |= WSC_RF_BAND_5_0_GHZ;
+
+	req.association_state = WSC_ASSOCIATION_STATE_NOT_ASSOCIATED,
+	req.configuration_error = WSC_CONFIGURATION_ERROR_NO_ERROR,
+	req.device_password_id = WSC_DEVICE_PASSWORD_ID_PUSH_BUTTON,
+	req.request_to_enroll = true,
+
+	wsc_data = wsc_build_probe_request(&req, &wsc_data_size);
+	if (!wsc_data)
+		return NULL;
+
+	sm = l_new(struct wsc_sm, 1);
+	sm->wsc_ies = ie_tlv_encapsulate_wsc_payload(wsc_data, wsc_data_size,
+							&sm->wsc_ies_size);
+	l_free(wsc_data);
+
+	if (sm->wsc_ies) {
+		l_free(sm);
+		return NULL;
+	}
+
+	return sm;
+}
+
+void wsc_sm_free(struct wsc_sm *sm)
+{
+	l_free(sm);
+}

src/wsc.h

@@ -0,0 +1,30 @@
+/*
+ *
+ *  Wireless daemon for Linux
+ *
+ *  Copyright (C) 2013-2015  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <stdbool.h>
+#include <stddef.h>
+
+struct wsc_sm;
+
+struct wsc_sm *wsc_sm_new_pushbutton(uint32_t ifindex, const uint8_t *addr,
+					uint32_t bands);
+void wsc_sm_free(struct wsc_sm *wsc_sm);