struct MacAddress
{
- char mac[6];
+ u_int8_t mac[6];
};
struct Wlan_Helper_Control_Message
{
struct GNUNET_MessageHeader hdr;
- struct MacAddress mac ;
+ struct MacAddress mac;
};
+/**
+ * Header for messages which need fragmentation
+ */
+struct FragmentationHeader
+{
+ struct GNUNET_MessageHeader header;
+
+ /**
+ * ID of message, to distinguish between the messages, picked randomly.
+ */
+ uint32_t message_id GNUNET_PACKED;
+
+ /**
+ * Offset or number of this fragment, for fragmentation/segmentation (design choice, TBD)
+ */
+ uint16_t fragment_off_or_num GNUNET_PACKED;
+
+ /**
+ * CRC of fragment (for error checking)
+ */
+ uint16_t message_crc GNUNET_PACKED;
+
+// followed by payload
+
+};
+
+/**
+ * Header for messages which need fragmentation
+ */
+struct WlanHeader
+{
+
+ 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;
+
+// followed by payload
+
+};
/* Wlan IEEE80211 header default */
//Informations (in German) http://www.umtslink.at/content/WLAN_macheader-196.html
};
// gnunet bssid
-static const char mac_bssid[] =
- { 0x13, 0x22, 0x33, 0x44, 0x55, 0x66 };
+static const struct MacAddress mac_bssid =
+ { { 0x13, 0x22, 0x33, 0x44, 0x55, 0x66 } } ;
// broadcast mac
-static const char bc_all_mac[] =
- { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-
-/**
- * Wlan header
- */
-
-struct IeeeHeader
-{
- /**
- * Wlan flags
- */
- uint16_t frame_control GNUNET_PACKED;
+static const struct MacAddress bc_all_mac =
+ { { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF } };
- /**
- * Duration / ID
- */
- uint16_t duration_id GNUNET_PACKED;
-
- /**
- * first mac byte 1
- */
- struct MacAddress mac1;
-
-
- /**
- * second mac
- */
- struct MacAddress mac2;
-
- /**
- * third mac
- */
- struct MacAddress mac3;
-
- /**
- * Wlan Sequence Control
- */
- uint16_t sequence_control GNUNET_PACKED;
-};
/* this is the template radiotap header we send packets out with */
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;
+};
+
+// 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
*/