/*
- This file is part of GNUnet
- (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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
+ (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 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.
+ */
/**
* @file transport/plugin_transport_wlan.h
* @author David Brodski
*/
+#ifndef PLUGIN_TRANSPORT_WLAN
+#define PLUGIN_TRANSPORT_WLAN
+
+#include <stdint.h>
#include "gnunet_common.h"
-typedef unsigned int uint32_t;
-typedef unsigned short uint16_t;
+struct MacAddress
+{
+ u_int8_t mac[6];
+};
-/* Wlan IEEE80211 header default */
-static const uint8_t u8aIeeeHeader[] = {
- 0x08, 0x01, 0x00, 0x00,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0x13, 0x22, 0x33, 0x44, 0x55, 0x66,
- 0x13, 0x22, 0x33, 0x44, 0x55, 0x66,
- 0x10, 0x86,
+struct Wlan_Helper_Control_Message
+{
+ struct GNUNET_MessageHeader hdr;
+ struct MacAddress mac;
};
+
/**
- * Wlan header
+ * Header for messages which need fragmentation
*/
-
-struct IeeeHeader
+struct WlanHeader
{
- /**
- * Wlan flags
- */
- uint8_t flags[4] GNUNET_PACKED;
-
- /**
- * first mac
- */
- uint8_t mac1[6] GNUNET_PACKED;
-
- /**
- * second mac
- */
- uint8_t mac2[6] GNUNET_PACKED;
-
- /**
- * third mac
- */
- uint8_t mac3[6] GNUNET_PACKED;
-
- /**
- * Wlan flags2
- */
- uint8_t flags2[2] GNUNET_PACKED;
+
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * checksum/error correction
+ */
+ uint32_t crc GNUNET_PACKED;
+
+ /**
+ * To whom are we talking to (set to our identity
+ * if we are still waiting for the welcome message)
+ */
+ struct GNUNET_PeerIdentity target;
+
+ /**
+ * Where the packet came from
+ */
+ struct GNUNET_PeerIdentity source;
+
+// followed by payload
+
};
+/* Wlan IEEE80211 header default */
+//Informations (in German) http://www.umtslink.at/content/WLAN_macheader-196.html
+static const uint8_t u8aIeeeHeader[] =
+ { 0x08, 0x01, // Frame Control 0x08= 00001000 -> | b1,2 = 0 -> Version 0;
+ // b3,4 = 10 -> Data; b5-8 = 0 -> Normal Data
+ // 0x01 = 00000001 -> | b1 = 1 to DS; b2 = 0 not from DS;
+ 0x00, 0x00, // Duration/ID
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, // mac1 - in this case receiver
+ 0x13, 0x22, 0x33, 0x44, 0x55, 0x66, // mac2 - in this case sender
+ 0x13, 0x22, 0x33, 0x44, 0x55, 0x66, // mac3 - in this case bssid
+ 0x10, 0x86, //Sequence Control
+ };
+
+// gnunet bssid
+static const struct MacAddress mac_bssid =
+ {
+ { 0x13, 0x22, 0x33, 0x44, 0x55, 0x66 } };
+
+// broadcast mac
+static const struct MacAddress bc_all_mac =
+ {
+ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } };
+
/* this is the template radiotap header we send packets out with */
-static const uint8_t u8aRadiotapHeader[] = {
+static const uint8_t u8aRadiotapHeader[] =
+ { 0x00, 0x00, // <-- radiotap version
+ 0x19, 0x00, // <- radiotap header length
+ 0x6f, 0x08, 0x00, 0x00, // <-- bitmap
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // <-- timestamp
+ 0x00, // <-- flags (Offset +0x10)
+ 0x6c, // <-- rate (0ffset +0x11)
+ 0x71, 0x09, 0xc0, 0x00, // <-- channel
+ 0xde, // <-- antsignal
+ 0x00, // <-- antnoise
+ 0x01, // <-- antenna
+ };
+
+struct Radiotap_Send
+{
+ /**
+ * wlan send rate
+ */
+ uint8_t rate;
+
+ /**
+ * antenna
+ */
+ uint8_t antenna;
+
+ /**
+ * 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;
+};
- 0x00, 0x00, // <-- radiotap version
- 0x19, 0x00, // <- radiotap header length
- 0x6f, 0x08, 0x00, 0x00, // <-- bitmap
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // <-- timestamp
- 0x00, // <-- flags (Offset +0x10)
- 0x6c, // <-- rate (0ffset +0x11)
- 0x71, 0x09, 0xc0, 0x00, // <-- channel
- 0xde, // <-- antsignal
- 0x00, // <-- antnoise
- 0x01, // <-- antenna
+// bit field defines for ri_present
+#define has_noise 1
+#define has_power 2
+#define has_channel 4
+
+/**
+ * struct to represent infos gathered form the radiotap fields
+ */
+
+struct Radiotap_rx
+{
+ uint32_t ri_present;
+ uint64_t ri_mactime;
+ int32_t ri_power;
+ int32_t ri_noise;
+ uint32_t ri_channel;
+ uint32_t ri_freq;
+ uint32_t ri_rate;
+ uint32_t ri_antenna;
};
/**
* Radiotap Header
*/
-
struct RadiotapHeader
{
- /**
- * radiotap version
- */
- uint8_t version[2] GNUNET_PACKED;
-
- /**
- * radiotap header length
- */
- uint8_t lenght[2] GNUNET_PACKED;
-
- /**
- * bitmap
- */
- uint8_t bitmap[4] GNUNET_PACKED;
-
- /**
- * timestamp
- */
- uint8_t timestamp[8] GNUNET_PACKED;
-
- /**
- * radiotap flags
- */
- uint8_t flags GNUNET_PACKED;
-
- /**
- * wlan send rate
- */
- uint8_t rate GNUNET_PACKED;
-
- /**
- * Wlan channel
- */
- uint8_t channel[4] GNUNET_PACKED;
-
- /**
- * antsignal
- */
- uint8_t antsignal GNUNET_PACKED;
-
- /**
- * antnoise
- */
- uint8_t antnoise GNUNET_PACKED;
-
- /**
- * antenna
- */
- uint8_t antenna GNUNET_PACKED;
+ /**
+ * radiotap version
+ */
+ u_int8_t version;
+
+ u_int8_t pad_version;
+
+ /**
+ * radiotap header length
+ */
+ uint16_t length GNUNET_PACKED;
+
+ /**
+ * bitmap, fields present
+ */
+ uint32_t bitmap GNUNET_PACKED;
+
+ /**
+ * timestamp
+ */
+ uint64_t timestamp GNUNET_PACKED;
+
+ /**
+ * radiotap flags
+ */
+ uint8_t flags;
+
+ /**
+ * wlan send rate
+ */
+ uint8_t rate;
+
+ // FIXME: unaligned here, is this OK?
+ /**
+ * Wlan channel
+ */
+ uint32_t channel GNUNET_PACKED;
+
+ /**
+ * antsignal
+ */
+ uint8_t antsignal;
+
+ /**
+ * antnoise
+ */
+ uint8_t antnoise;
+
+ /**
+ * antenna
+ */
+ uint8_t antenna;
};
+#endif
projects / oweals / gnunet.git / blobdiff