1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1999-2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _V4_SUM_IMPL_H 28 #define _V4_SUM_IMPL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include <netinet/in.h> 34 #include <netinet/udp.h> 35 36 /* 37 * Common functions for various IP/UDP module checksum implementations. 38 */ 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 #define BIT_WRAP (uint_t)0x10000 /* checksum wrap */ 45 46 extern uint16_t ipv4cksum(uint16_t *, uint16_t); 47 extern uint16_t udp_chksum(struct udphdr *, const struct in_addr *, 48 const struct in_addr *, uint8_t); 49 50 #ifdef __cplusplus 51 } 52 #endif 53 54 #endif /* _V4_SUM_IMPL_H */ 55