mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-14 04:11:48 -05:00
119 lines
5.6 KiB
C
119 lines
5.6 KiB
C
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2020 Jon Beniston, M7RCE <jon@beniston.com> //
|
|
// //
|
|
// This program 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 as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program 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 V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef INCLUDE_IEEE_802_15_4_MACFRAME_H
|
|
#define INCLUDE_IEEE_802_15_4_MACFRAME_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
|
|
// Frame control field values
|
|
#define IEEE_802_15_4_MAC_FRAME_TYPE_MASK 0x0003
|
|
#define IEEE_802_15_4_MAC_BEACON 0x0000
|
|
#define IEEE_802_15_4_MAC_DATA 0x0001
|
|
#define IEEE_802_15_4_MAC_ACK 0x0002
|
|
#define IEEE_802_15_4_MAC_COMMAND 0x0003
|
|
#define IEEE_802_15_4_MAC_SECURITY_ENABLED 0x0008
|
|
#define IEEE_802_15_4_MAC_FRAME_PENDING 0x0010
|
|
#define IEEE_802_15_4_MAC_ACK_REQUIRED 0x0020
|
|
#define IEEE_802_15_4_MAC_PAN_COMPRESSION 0x0040
|
|
#define IEEE_802_15_4_MAC_NO_SEQ_NUMBER 0x0100
|
|
#define IEEE_802_15_4_MAC_DEST_ADDRESS_MASK 0x0c00
|
|
#define IEEE_802_15_4_MAC_DEST_ADDRESS_NONE 0x0000
|
|
#define IEEE_802_15_4_MAC_DEST_ADDRESS_SHORT 0x0400
|
|
#define IEEE_802_15_4_MAC_DEST_ADDRESS_EXT 0x0c00
|
|
#define IEEE_802_15_4_MAC_SOURCE_ADDRESS_MASK 0xc000
|
|
#define IEEE_802_15_4_MAC_SOURCE_ADDRESS_NONE 0x0000
|
|
#define IEEE_802_15_4_MAC_SOURCE_ADDRESS_SHORT 0x4000
|
|
#define IEEE_802_15_4_MAC_SOURCE_ADDRESS_EXT 0xc000
|
|
#define IEEE_802_15_4_MAC_PAYLOAD_MAX_LENGTH 124
|
|
#define IEEE_802_15_5_MAX_EXT_ADDRESS_LENGTH 8
|
|
|
|
typedef uint8_t ieee_802_15_4_address[IEEE_802_15_5_MAX_EXT_ADDRESS_LENGTH];
|
|
|
|
struct IEEE_802_15_4_MacFrame
|
|
{
|
|
uint16_t m_frameControl;
|
|
uint8_t m_sequenceNumber;
|
|
uint16_t m_destPANID;
|
|
uint16_t m_destShortAddress = 0;
|
|
ieee_802_15_4_address m_destAddress;
|
|
uint16_t m_sourcePANID;
|
|
uint16_t m_sourceShortAddress = 0;
|
|
ieee_802_15_4_address m_sourceAddress;
|
|
uint8_t m_payload[IEEE_802_15_4_MAC_PAYLOAD_MAX_LENGTH];
|
|
uint8_t m_payloadLength;
|
|
|
|
IEEE_802_15_4_MacFrame()
|
|
{
|
|
if (false)
|
|
{
|
|
// Example ACK frame
|
|
m_frameControl = IEEE_802_15_4_MAC_ACK;
|
|
m_sequenceNumber = 0;
|
|
m_payloadLength = 0;
|
|
}
|
|
else
|
|
{
|
|
ieee_802_15_4_address dst = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
|
|
ieee_802_15_4_address src = {0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff};
|
|
|
|
// Example data frame
|
|
m_frameControl = IEEE_802_15_4_MAC_DATA | IEEE_802_15_4_MAC_DEST_ADDRESS_EXT | IEEE_802_15_4_MAC_SOURCE_ADDRESS_EXT;
|
|
m_sequenceNumber = 0;
|
|
m_destPANID = 0xbabe;
|
|
memcpy(m_destAddress, dst, sizeof(m_destAddress));
|
|
m_sourcePANID = 0xbabe;
|
|
memcpy(m_sourceAddress, src, sizeof(m_sourceAddress));
|
|
strcpy((char *)m_payload, "SDR Angel does 15.4");
|
|
m_payloadLength = strlen((char *)m_payload);
|
|
}
|
|
}
|
|
|
|
char *bytesToHex(char *buf, uint8_t *data, int len)
|
|
{
|
|
for (int i = 0; i < len; i++)
|
|
buf += sprintf(buf, "%02x ", data[i]);
|
|
return buf;
|
|
}
|
|
|
|
void toHexCharArray(char *buf)
|
|
{
|
|
buf += sprintf(buf, "%02x %02x %02x ", m_frameControl & 0xff, (m_frameControl >> 8) & 0xff, m_sequenceNumber);
|
|
|
|
if ((m_frameControl & IEEE_802_15_4_MAC_FRAME_TYPE_MASK) != IEEE_802_15_4_MAC_ACK)
|
|
buf += sprintf(buf, "%02x %02x ", m_destPANID & 0xff, (m_destPANID >> 8) & 0xff);
|
|
if ((m_frameControl & IEEE_802_15_4_MAC_DEST_ADDRESS_MASK) == IEEE_802_15_4_MAC_DEST_ADDRESS_EXT)
|
|
buf = bytesToHex(buf, m_destAddress, sizeof(m_destAddress));
|
|
else if ((m_frameControl & IEEE_802_15_4_MAC_DEST_ADDRESS_MASK) == IEEE_802_15_4_MAC_DEST_ADDRESS_SHORT)
|
|
buf += sprintf(buf, "%02x %02x ", m_destShortAddress & 0xff, (m_destShortAddress >> 8) & 0xff);
|
|
|
|
if (((m_frameControl & IEEE_802_15_4_MAC_FRAME_TYPE_MASK) != IEEE_802_15_4_MAC_ACK)
|
|
&& (!(m_frameControl & IEEE_802_15_4_MAC_PAN_COMPRESSION) || (m_destPANID != m_sourcePANID)))
|
|
buf += sprintf(buf, "%02x %02x ", m_sourcePANID & 0xff, (m_sourcePANID >> 8) & 0xff);
|
|
if ((m_frameControl & IEEE_802_15_4_MAC_SOURCE_ADDRESS_MASK) == IEEE_802_15_4_MAC_SOURCE_ADDRESS_EXT)
|
|
buf = bytesToHex(buf, m_sourceAddress, sizeof(m_sourceAddress));
|
|
else if ((m_frameControl & IEEE_802_15_4_MAC_SOURCE_ADDRESS_MASK) == IEEE_802_15_4_MAC_SOURCE_ADDRESS_SHORT)
|
|
buf += sprintf(buf, "%02x %02x ", m_sourceShortAddress & 0xff, (m_sourceShortAddress >> 8) & 0xff);
|
|
|
|
buf = bytesToHex(buf, m_payload, m_payloadLength);
|
|
}
|
|
|
|
};
|
|
|
|
#endif /* INCLUDE_IEEE_802_15_4_MACFRAME_H */
|