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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* CALIPSO - Common Architecture Label IPv6 Security Option
*
* This is an implementation of the CALIPSO protocol as specified in
* RFC 5570.
*
* Authors: Paul Moore <paul@paul-moore.com>
* Huw Davies <huw@codeweavers.com>
*/
/*
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
* (c) Copyright Huw Davies <huw@codeweavers.com>, 2015
*/
#ifndef _CALIPSO_H
#define _CALIPSO_H
#include <linux/types.h>
#include <linux/rcupdate.h>
#include <linux/list.h>
#include <linux/net.h>
#include <linux/skbuff.h>
#include <net/netlabel.h>
#include <net/request_sock.h>
#include <linux/refcount.h>
#include <asm/unaligned.h>
/* known doi values */
#define CALIPSO_DOI_UNKNOWN 0x00000000
/* doi mapping types */
#define CALIPSO_MAP_UNKNOWN 0
#define CALIPSO_MAP_PASS 2
/*
* CALIPSO DOI definitions
*/
/* DOI definition struct */
struct calipso_doi {
u32 doi;
u32 type;
refcount_t refcount;
struct list_head list;
struct rcu_head rcu;
};
/*
* Sysctl Variables
*/
extern int calipso_cache_enabled;
extern int calipso_cache_bucketsize;
#ifdef CONFIG_NETLABEL
int __init calipso_init(void);
void calipso_exit(void);
bool calipso_validate(const struct sk_buff *skb, const unsigned char *option);
#else
static inline int __init calipso_init(void)
{
return 0;
}
static inline void calipso_exit(void)
{
}
static inline bool calipso_validate(const struct sk_buff *skb,
const unsigned char *option)
{
return true;
}
#endif /* CONFIG_NETLABEL */
#endif /* _CALIPSO_H */
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