[qemu.git] / net / checksum.h

/*
 *  IP checksumming functions.
 *  (c) 2008 Gerd Hoffmann <[email protected]>
 *
 *  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 */
Commit	Line	Data
7200ac3c MM	1	/*
	2	* IP checksumming functions.
	3	* (c) 2008 Gerd Hoffmann <[email protected]>
	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
	23	uint32_t net_checksum_add(int len, uint8_t *buf);
	24	uint16_t net_checksum_finish(uint32_t sum);
	25	uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
	26	uint8_t addrs, uint8_t buf);
	27	void net_checksum_calculate(uint8_t *data, int length);
	28
	29	#endif /* QEMU_NET_CHECKSUM_H */