/* 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 <linux/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_NETLABELint __init calipso_init(void);void calipso_exit(void);bool calipso_validate(const struct sk_buff *skb, const unsigned char *option);#elsestatic 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 */