62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/*
|
|
* IPCOMP zlib interface code.
|
|
* Copyright (C) 2000 Svenning Soerensen <[email protected]>
|
|
* Copyright (C) 2000, 2001 Richard Guy Briggs <[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; either version 2 of the License, or (at your
|
|
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
|
*
|
|
* 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.
|
|
|
|
RCSID $Id: ipcomp.h,v 1.1 2004/03/15 20:35:25 as Exp $
|
|
|
|
*/
|
|
|
|
/* SSS */
|
|
|
|
#ifndef _IPCOMP_H
|
|
#define _IPCOMP_H
|
|
|
|
/* Prefix all global deflate symbols with "ipcomp_" to avoid collisions with ppp_deflate & ext2comp */
|
|
#ifndef IPCOMP_PREFIX
|
|
#define IPCOMP_PREFIX
|
|
#endif /* IPCOMP_PREFIX */
|
|
|
|
#ifndef IPPROTO_COMP
|
|
#define IPPROTO_COMP 108
|
|
#endif /* IPPROTO_COMP */
|
|
|
|
#ifdef CONFIG_IPSEC_DEBUG
|
|
extern int sysctl_ipsec_debug_ipcomp;
|
|
#endif /* CONFIG_IPSEC_DEBUG */
|
|
|
|
struct ipcomphdr { /* IPCOMP header */
|
|
__u8 ipcomp_nh; /* Next header (protocol) */
|
|
__u8 ipcomp_flags; /* Reserved, must be 0 */
|
|
__u16 ipcomp_cpi; /* Compression Parameter Index */
|
|
};
|
|
|
|
extern struct inet_protocol comp_protocol;
|
|
extern int sysctl_ipsec_debug_ipcomp;
|
|
|
|
#define IPCOMP_UNCOMPRESSABLE 0x000000001
|
|
#define IPCOMP_COMPRESSIONERROR 0x000000002
|
|
#define IPCOMP_PARMERROR 0x000000004
|
|
#define IPCOMP_DECOMPRESSIONERROR 0x000000008
|
|
|
|
#define IPCOMP_ADAPT_INITIAL_TRIES 8
|
|
#define IPCOMP_ADAPT_INITIAL_SKIP 4
|
|
#define IPCOMP_ADAPT_SUBSEQ_TRIES 2
|
|
#define IPCOMP_ADAPT_SUBSEQ_SKIP 8
|
|
|
|
/* Function prototypes */
|
|
struct sk_buff *skb_compress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags);
|
|
struct sk_buff *skb_decompress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags);
|
|
|
|
#endif /* _IPCOMP_H */
|