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/*

 *  IP checksumming functions.

 *  (c) 2008 Gerd Hoffmann <kraxel@redhat.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; under version 2 of the License.

 *

 *  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 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 QEMU_NET_CHECKSUM_H

#define QEMU_NET_CHECKSUM_H

#include <stdint.h>

uint32_t net_checksum_add(int len, uint8_t *buf);

uint16_t net_checksum_finish(uint32_t sum);

uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,

                             uint8_t *addrs, uint8_t *buf);

void net_checksum_calculate(uint8_t *data, int length);

#endif /* QEMU_NET_CHECKSUM_H */