/*
- This file is part of GNUnet
- (C) 2010, 2011 Christian Grothoff (and other contributing authors)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
-
- GNUnet 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
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ This file is part of GNUnet
+ Copyright (C) 2010, 2011 GNUnet e.V.
+
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ GNUnet 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
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
#ifndef PLUGIN_TRANSPORT_WLAN
#define PLUGIN_TRANSPORT_WLAN
-#include <stdint.h>
+#include "gnunet_crypto_lib.h"
#include "gnunet_common.h"
/**
* Number fo bytes in a mac address.
*/
-#define MAC_ADDR_SIZE 6
+#ifdef MINGW
+ #define MAC_ADDR_SIZE 8
+typedef uint8_t u_int8_t;
+#else
+ #define MAC_ADDR_SIZE 6
+#endif
+
+/**
+ * Value for "Management" in the 'frame_control' field of the
+ * struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame.
+ */
+#define IEEE80211_FC0_TYPE_MGT 0x00
+
+/**
+ * Value for "Control" in the 'frame_control' field of the
+ * struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame.
+ */
+#define IEEE80211_FC0_TYPE_CTL 0x04
+
+/**
+ * Value for DATA in the 'frame_control' field of the
+ * struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame.
+ */
+#define IEEE80211_FC0_TYPE_DATA 0x08
+
+
+GNUNET_NETWORK_STRUCT_BEGIN
/**
* A MAC Address.
*/
-struct MacAddress
-{
+struct GNUNET_TRANSPORT_WLAN_MacAddress {
uint8_t mac[MAC_ADDR_SIZE];
};
-
/**
* Format of a WLAN Control Message.
*/
-struct GNUNET_TRANSPORT_WLAN_HelperControlMessage
-{
+struct GNUNET_TRANSPORT_WLAN_HelperControlMessage {
/**
- * Message header. FIXME: type?
+ * Message header. Type is
+ * GNUNET_MESSAGE_TYPE_WLAN_HELPER_CONTROL
*/
struct GNUNET_MessageHeader hdr;
/**
- * MAC Address. FIXME: of what?
+ * MAC Address of the local WLAN interface.
*/
- struct MacAddress mac;
+ struct GNUNET_TRANSPORT_WLAN_MacAddress mac;
};
-
/**
- * GNUnet bssid
+ * generic definitions for IEEE 802.3 frames
*/
-static const struct MacAddress mac_bssid_gnunet = {
- {0x13, 0x22, 0x33, 0x44, 0x55, 0x66}
+struct GNUNET_TRANSPORT_WLAN_Ieee8023Frame {
+ /**
+ * Address 1: destination address in ad-hoc mode or AP, BSSID if station,
+ */
+ struct GNUNET_TRANSPORT_WLAN_MacAddress dst;
+
+ /**
+ * Address 2: source address if in ad-hoc-mode or station, BSSID if AP
+ */
+ struct GNUNET_TRANSPORT_WLAN_MacAddress src;
+
+ /**
+ * Packet type ID.
+ */
+ uint16_t type;
};
/**
- * Broadcast MAC
+ * generic definitions for IEEE 802.11 frames
*/
-static const struct MacAddress bc_all_mac = {
- {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}
-};
+struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame {
+ /**
+ * 802.11 Frame Control field. A bitmask. The overall field is a
+ * 16-bit mask of the respecitve fields. The lowest two bits should
+ * be 0, then comes the "type" (2 bits, see IEEE80211_FC0_TYPE_*
+ * constants), followed by 4-bit subtype (all zeros for ad-hoc),
+ * followed by various flags (to DS, from DS, more frag, retry,
+ * power management, more data, WEP, strict), all of which we also
+ * keep at zero.
+ */
+ uint16_t frame_control GNUNET_PACKED;
+
+ /**
+ * Microseconds to reserve link (duration), 0 by default
+ */
+ uint16_t duration GNUNET_PACKED;
+
+ /**
+ * Address 1: destination address in ad-hoc mode or AP, BSSID if station,
+ */
+ struct GNUNET_TRANSPORT_WLAN_MacAddress addr1;
+ /**
+ * Address 2: source address if in ad-hoc-mode or station, BSSID if AP
+ */
+ struct GNUNET_TRANSPORT_WLAN_MacAddress addr2;
+
+ /**
+ * Address 3: BSSID in ad-hoc mode, Destination if station, source if AP
+ */
+ struct GNUNET_TRANSPORT_WLAN_MacAddress addr3;
+
+ /**
+ * 802.11 sequence control field; contains fragment number an sequence
+ * number (we set this to all zeros).
+ */
+ uint16_t sequence_control GNUNET_PACKED;
+
+ /**
+ * Link layer control (LLC). Set to a GNUnet-specific value.
+ */
+ u_int8_t llc[4];
+
+ /* payload */
+} GNUNET_PACKED;
+
+
+
+/**
+ * Message from the plugin to the WLAN helper: send the given message with the
+ * given connection parameters.
+ */
+struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage {
+ /**
+ * Type is 'GNUNET_MESSAGE_TYPE_WLAN_DATA_TO_HELPER'.
+ */
+ struct GNUNET_MessageHeader header;
-struct Radiotap_Send
-{
/**
* wlan send rate
*/
* Transmit power expressed as unitless distance from max power set at factory calibration.
* 0 is max power. Monotonically nondecreasing with lower power levels.
*/
- uint16_t tx_power;
+ uint16_t tx_power GNUNET_PACKED;
+
+ /**
+ * IEEE Frame to transmit (the sender MAC address will be overwritten by the helper as it does not
+ * trust the plugin to set it correctly).
+ */
+ struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame frame;
+
+ /* actual payload follows */
};
+/**
+ * Message from the WLAN helper to the plugin: we have received the given message with the
+ * given performance characteristics.
+ */
/**
* struct to represent infos gathered form the radiotap fields, see RadiotapHeader for more Infos
*/
-struct Radiotap_rx
-{
+struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage {
+ /**
+ * Type is 'GNUNET_MESSAGE_TYPE_WLAN_DATA_FROM_HELPER'.
+ */
+ struct GNUNET_MessageHeader header;
+
/**
- * FIXME: not initialized properly so far. (supposed to contain
- * information about which of the fields below are actually valid).
+ * Information about which of the fields below are actually valid.
+ * 0 for none. FIXME: not properly initialized so far (always zero).
*/
- uint32_t ri_present;
+ uint32_t ri_present GNUNET_PACKED;
/**
- * IEEE80211_RADIOTAP_TSFT
+ * IEEE80211_RADIOTAP_TSFT, 0 if unknown.
*/
- uint64_t ri_mactime;
+ uint64_t ri_mactime GNUNET_PACKED;
/**
* from radiotap
* either IEEE80211_RADIOTAP_DBM_ANTSIGNAL
- * or IEEE80211_RADIOTAP_DB_ANTSIGNAL
+ * or IEEE80211_RADIOTAP_DB_ANTSIGNAL, 0 if unknown.
*/
- int32_t ri_power;
+ int32_t ri_power GNUNET_PACKED;
/**
* either IEEE80211_RADIOTAP_DBM_ANTNOISE
- * or IEEE80211_RADIOTAP_DB_ANTNOISE
+ * or IEEE80211_RADIOTAP_DB_ANTNOISE, 0 if unknown.
*/
- int32_t ri_noise;
+ int32_t ri_noise GNUNET_PACKED;
/**
- * IEEE80211_RADIOTAP_CHANNEL
+ * IEEE80211_RADIOTAP_CHANNEL, 0 if unknown.
*/
- uint32_t ri_channel;
+ uint32_t ri_channel GNUNET_PACKED;
/**
- * Frequency we use. FIXME: not properly initialized so far!
+ * Frequency we use. 0 if unknown.
*/
- uint32_t ri_freq;
+ uint32_t ri_freq GNUNET_PACKED;
/**
- * IEEE80211_RADIOTAP_RATE * 50000
+ * IEEE80211_RADIOTAP_RATE * 50000, 0 if unknown.
*/
- uint32_t ri_rate;
+ uint32_t ri_rate GNUNET_PACKED;
/**
- * IEEE80211_RADIOTAP_ANTENNA
+ * IEEE80211_RADIOTAP_ANTENNA, 0 if unknown.
*/
- uint32_t ri_antenna;
+ uint32_t ri_antenna GNUNET_PACKED;
+
+ /**
+ * IEEE Frame.
+ */
+ struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame frame;
+
+ /* followed by payload */
};
+GNUNET_NETWORK_STRUCT_END
+/**
+ * GNUnet bssid
+ */
+static const struct GNUNET_TRANSPORT_WLAN_MacAddress mac_bssid_gnunet = {
+ { 0x13, 0x22, 0x33, 0x44, 0x55, 0x66 }
+};
+
+
+/**
+ * Broadcast MAC
+ */
+static const struct GNUNET_TRANSPORT_WLAN_MacAddress bc_all_mac = {
+ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }
+};
#endif
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