Ethernet.h 1.2 KB

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  1. /* vim: set expandtab ts=4 sw=4: */
  2. /*
  3. * You may redistribute this program and/or modify it under the terms of
  4. * the GNU General Public License as published by the Free Software Foundation,
  5. * either version 3 of the License, or (at your option) any later version.
  6. *
  7. * This program is distributed in the hope that it will be useful,
  8. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  10. * GNU General Public License for more details.
  11. *
  12. * You should have received a copy of the GNU General Public License
  13. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  14. */
  15. #ifndef Ethernet_H
  16. #define Ethernet_H
  17. #include "util/Endian.h"
  18. /** It's not about to change but it makes for more readable code. */
  19. #define Ethernet_ADDRLEN 6
  20. struct Ethernet
  21. {
  22. uint16_t pad;
  23. uint8_t destAddr[Ethernet_ADDRLEN];
  24. uint8_t srcAddr[Ethernet_ADDRLEN];
  25. uint16_t ethertype;
  26. };
  27. #define Ethernet_SIZE 16
  28. Assert_compileTime(sizeof(struct Ethernet) == Ethernet_SIZE);
  29. #define Ethernet_TYPE_IP4 Endian_hostToBigEndian16( 0x0800 )
  30. #define Ethernet_TYPE_IP6 Endian_hostToBigEndian16( 0x86DD )
  31. #define Ethernet_TYPE_CJDNS Endian_hostToBigEndian16( 0xFC00 )
  32. #endif