LXR qemu/include/net/checksum.h

   1/*
   2 *  IP checksumming functions.
   3 *  (c) 2008 Gerd Hoffmann <kraxel@redhat.com>
   4 *
   5 *  This program is free software; you can redistribute it and/or modify
   6 *  it under the terms of the GNU General Public License as published by
   7 *  the Free Software Foundation; under version 2 of the License.
   8 *
   9 *  This program is distributed in the hope that it will be useful,
  10 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 *  GNU General Public License for more details.
  13 *
  14 *  You should have received a copy of the GNU General Public License
  15 *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18#ifndef QEMU_NET_CHECKSUM_H
  19#define QEMU_NET_CHECKSUM_H
  20
  21#include <stdint.h>
  22
  23uint32_t net_checksum_add(int len, uint8_t *buf);
  24uint16_t net_checksum_finish(uint32_t sum);
  25uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
  26                             uint8_t *addrs, uint8_t *buf);
  27void net_checksum_calculate(uint8_t *data, int length);
  28
  29#endif /* QEMU_NET_CHECKSUM_H */
  30