xnu-3789.51.2.tar.gz

[apple/xnu.git] / bsd / netinet6 / scope6_var.h

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#ifndef _NETINET6_SCOPE6_VAR_H_
#define _NETINET6_SCOPE6_VAR_H_
#include <sys/appleapiopts.h>

/*
 * 16 is correspondent to 4bit multicast scope field.
 * i.e. from node-local to global with some reserved/unassigned types.
 */
#define	SCOPE6_ID_MAX   16

#ifdef BSD_KERNEL_PRIVATE

struct scope6_id {
	u_int32_t s6id_list[SCOPE6_ID_MAX];
};

extern void scope6_init(lck_grp_t *, lck_attr_t *);
extern void scope6_ifattach(struct ifnet *);
extern void scope6_setdefault(struct ifnet *);
extern u_int32_t scope6_in6_addrscope(struct in6_addr *);
extern u_int32_t scope6_addr2default(struct in6_addr *);
extern int sa6_embedscope (struct sockaddr_in6 *, int);
extern int sa6_recoverscope (struct sockaddr_in6 *, boolean_t);
extern int in6_setscope (struct in6_addr *, struct ifnet *, u_int32_t *);
extern int in6_clearscope (struct in6_addr *);
extern void rtkey_to_sa6(struct rtentry *, struct sockaddr_in6 *);
extern void rtgw_to_sa6(struct rtentry *, struct sockaddr_in6 *);
#endif /* BSD_KERNEL_PRIVATE */
#endif /* _NETINET6_SCOPE6_VAR_H_ */