Differential D14969 Diff 42075 head/sys/netinet/in_var.h

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head/sys/netinet/in_var.h

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	#ifdef _KERNEL			#ifdef _KERNEL
	#include <sys/queue.h>			#include <sys/queue.h>
	#include <sys/fnv_hash.h>			#include <sys/fnv_hash.h>
	#include <sys/tree.h>			#include <sys/tree.h>

	struct igmp_ifsoftc;			struct igmp_ifsoftc;
	struct in_multi;			struct in_multi;
	struct lltable;			struct lltable;
				SLIST_HEAD(in_multi_head, in_multi);

	/*			/*
	* IPv4 per-interface state.			* IPv4 per-interface state.
	*/			*/
	struct in_ifinfo {			struct in_ifinfo {
	struct lltable ii_llt; / ARP state */			struct lltable ii_llt; / ARP state */
	struct igmp_ifsoftc ii_igmp; / IGMP state */			struct igmp_ifsoftc ii_igmp; / IGMP state */
	struct in_multi ii_allhosts; / 224.0.0.1 membership */			struct in_multi ii_allhosts; / 224.0.0.1 membership */
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	#endif			#endif

	/*			/*
	* Lock macros for IPv4 layer multicast address lists. IPv4 lock goes			* Lock macros for IPv4 layer multicast address lists. IPv4 lock goes
	* before link layer multicast locks in the lock order. In most cases,			* before link layer multicast locks in the lock order. In most cases,
	* consumers of IN_*_MULTI() macros should acquire the locks before			* consumers of IN_*_MULTI() macros should acquire the locks before
	* calling them; users of the in_{add,del}multi() functions should not.			* calling them; users of the in_{add,del}multi() functions should not.
	*/			*/
	extern struct mtx in_multi_mtx;			extern struct mtx in_multi_list_mtx;
	#define IN_MULTI_LOCK() mtx_lock(&in_multi_mtx)			extern struct sx in_multi_sx;
	#define IN_MULTI_UNLOCK() mtx_unlock(&in_multi_mtx)
	#define IN_MULTI_LOCK_ASSERT() mtx_assert(&in_multi_mtx, MA_OWNED)
	#define IN_MULTI_UNLOCK_ASSERT() mtx_assert(&in_multi_mtx, MA_NOTOWNED)

				#define IN_MULTI_LIST_LOCK() mtx_lock(&in_multi_list_mtx)
				#define IN_MULTI_LIST_UNLOCK() mtx_unlock(&in_multi_list_mtx)
				#define IN_MULTI_LIST_LOCK_ASSERT() mtx_assert(&in_multi_list_mtx, MA_OWNED)
				#define IN_MULTI_LIST_UNLOCK_ASSERT() mtx_assert(&in_multi_list_mtx, MA_NOTOWNED)

				#define IN_MULTI_LOCK() sx_xlock(&in_multi_sx)
				#define IN_MULTI_UNLOCK() sx_xunlock(&in_multi_sx)
				#define IN_MULTI_LOCK_ASSERT() sx_assert(&in_multi_sx, SA_XLOCKED)
				#define IN_MULTI_UNLOCK_ASSERT() sx_assert(&in_multi_sx, SA_XUNLOCKED)

	/* Acquire an in_multi record. */			/* Acquire an in_multi record. */
	static __inline void			static __inline void
	inm_acquire_locked(struct in_multi *inm)			inm_acquire_locked(struct in_multi *inm)
	{			{

	IN_MULTI_LOCK_ASSERT();			IN_MULTI_LIST_LOCK_ASSERT();
	++inm->inm_refcount;			++inm->inm_refcount;
	}			}

				static __inline void
				inm_acquire(struct in_multi *inm)
				{
				IN_MULTI_LIST_LOCK();
				inm_acquire_locked(inm);
				IN_MULTI_LIST_UNLOCK();
				}

				static __inline void
				inm_rele_locked(struct in_multi_head inmh, struct in_multi inm)
				{
				MPASS(inm->inm_refcount > 0);
				IN_MULTI_LIST_LOCK_ASSERT();

				if (--inm->inm_refcount == 0) {
				MPASS(inmh != NULL);
				inm->inm_ifma->ifma_protospec = NULL;
				SLIST_INSERT_HEAD(inmh, inm, inm_nrele);
				}
				}

	/*			/*
	* Return values for imo_multi_filter().			* Return values for imo_multi_filter().
	*/			*/
	#define MCAST_PASS 0 /* Pass */			#define MCAST_PASS 0 /* Pass */
	#define MCAST_NOTGMEMBER 1 /* This host not a member of group */			#define MCAST_NOTGMEMBER 1 /* This host not a member of group */
	#define MCAST_NOTSMEMBER 2 /* This host excluded source */			#define MCAST_NOTSMEMBER 2 /* This host excluded source */
	#define MCAST_MUTED 3 /* [deprecated] */			#define MCAST_MUTED 3 /* [deprecated] */

	struct rtentry;			struct rtentry;
	struct route;			struct route;
	struct ip_moptions;			struct ip_moptions;

	struct in_multi inm_lookup_locked(struct ifnet , const struct in_addr);			struct in_multi inm_lookup_locked(struct ifnet , const struct in_addr);
	struct in_multi inm_lookup(struct ifnet , const struct in_addr);			struct in_multi inm_lookup(struct ifnet , const struct in_addr);
	int imo_multi_filter(const struct ip_moptions , const struct ifnet ,			int imo_multi_filter(const struct ip_moptions , const struct ifnet ,
	const struct sockaddr , const struct sockaddr );			const struct sockaddr , const struct sockaddr );
	void inm_commit(struct in_multi *);			void inm_commit(struct in_multi *);
	void inm_clear_recorded(struct in_multi *);			void inm_clear_recorded(struct in_multi *);
	void inm_print(const struct in_multi *);			void inm_print(const struct in_multi *);
	int inm_record_source(struct in_multi *inm, const in_addr_t);			int inm_record_source(struct in_multi *inm, const in_addr_t);
	void inm_release(struct in_multi *);			void inm_release_deferred(struct in_multi *);
	void inm_release_locked(struct in_multi *);			void inm_release_list_deferred(struct in_multi_head *);
	struct in_multi *			struct in_multi *
	in_addmulti(struct in_addr , struct ifnet );			in_addmulti(struct in_addr , struct ifnet );
	void in_delmulti(struct in_multi *);
	int in_joingroup(struct ifnet , const struct in_addr ,			int in_joingroup(struct ifnet , const struct in_addr ,
	/const/ struct in_mfilter , struct in_multi *);			/const/ struct in_mfilter , struct in_multi *);
	int in_joingroup_locked(struct ifnet , const struct in_addr ,			int in_joingroup_locked(struct ifnet , const struct in_addr ,
	/const/ struct in_mfilter , struct in_multi *);			/const/ struct in_mfilter , struct in_multi *);
	int in_leavegroup(struct in_multi , /const/ struct in_mfilter );			int in_leavegroup(struct in_multi , /const/ struct in_mfilter );
	int in_leavegroup_locked(struct in_multi *,			int in_leavegroup_locked(struct in_multi *,
	/const/ struct in_mfilter *);			/const/ struct in_mfilter *);
	int in_control(struct socket , u_long, caddr_t, struct ifnet ,			int in_control(struct socket , u_long, caddr_t, struct ifnet ,
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