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ah.h
Go to the documentation of this file.00001 /* 00002 * embedded IPsec 00003 * Copyright (c) 2003 Niklaus Schild and Christian Scheurer, HTI Biel/Bienne 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without modification, 00007 * are permitted provided that the following conditions are met: 00008 * 00009 * 1. Redistributions of source code must retain the above copyright notice, 00010 * this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright notice, 00012 * this list of conditions and the following disclaimer in the documentation 00013 * and/or other materials provided with the distribution. 00014 * 3. The name of the author may not be used to endorse or promote products 00015 * derived from this software without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00018 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00019 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00020 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00021 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00022 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00023 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00024 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00025 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00026 * OF SUCH DAMAGE. 00027 * 00028 */ 00029 00043 #ifndef __AH_H__ 00044 #define __AH_H__ 00045 00046 #include "ipsec/sa.h" 00047 #include "ipsec/util.h" 00048 00049 00050 #define IPSEC_AH_HDR_SIZE (12) 00053 typedef struct ah_hdr_struct 00054 { 00055 __u8 nexthdr; 00056 __u8 len; 00057 __u16 reserved; 00058 __u32 spi; 00059 __u32 sequence; 00060 __u8 ah_data[IPSEC_AUTH_ICV]; 00061 } ipsec_ah_header; 00062 00063 00064 extern __u32 ipsec_ah_bitmap; 00065 extern __u32 ipsec_ah_lastSeq; 00067 int ipsec_ah_check(ipsec_ip_header *, int *, int *, void *); 00068 int ipsec_ah_encapsulate(ipsec_ip_header *, int *, int *, void *, __u32, __u32); 00069 00070 #endif 00071 00072