ip6_var.h

vxworks 6.x 的全部头文件

	u_quad_t ip6s_fragtimeout;	/* fragments timed out */
	u_quad_t ip6s_fragoverflow;	/* fragments that exceeded limit */
	u_quad_t ip6s_forward;		/* packets forwarded */
	u_quad_t ip6s_cantforward;	/* packets rcvd for unreachable dest */
	u_quad_t ip6s_redirectsent;	/* packets forwarded on same net */
	u_quad_t ip6s_delivered;	/* datagrams delivered to upper level*/
	u_quad_t ip6s_localout;		/* total ip packets generated here */
	u_quad_t ip6s_odropped;		/* lost packets due to nobufs, etc. */
	u_quad_t ip6s_reassembled;	/* total packets reassembled ok */
	u_quad_t ip6s_fragmented;	/* datagrams successfully fragmented */
	u_quad_t ip6s_ofragments;	/* output fragments created */
	u_quad_t ip6s_cantfrag;		/* don't fragment flag was set, etc. */
	u_quad_t ip6s_badoptions;	/* error in option processing */
	u_quad_t ip6s_noroute;		/* packets discarded due to no route */
	u_quad_t ip6s_badvers;		/* ip6 version != 6 */
	u_quad_t ip6s_rawout;		/* total raw ip packets generated */
	u_quad_t ip6s_badscope;		/* scope error */
	u_quad_t ip6s_notmember;	/* don't join this multicast group */
	u_quad_t ip6s_nxthist[256];	/* next header history */
	u_quad_t ip6s_m1;		/* one mbuf */
	u_quad_t ip6s_m2m[32];		/* two or more mbuf */
	u_quad_t ip6s_mext1;		/* one ext mbuf */
	u_quad_t ip6s_mext2m;		/* two or more ext mbuf */
	u_quad_t ip6s_exthdrtoolong;	/* ext hdr are not continuous */
	u_quad_t ip6s_nogif;		/* no match gif found */
	u_quad_t ip6s_toomanyhdr;	/* discarded due to too many headers */

	/*
	 * statistics for improvement of the source address selection
	 * algorithm:
	 * XXX: hardcoded 16 = # of ip6 multicast scope types + 1
	 */
	/* number of times that address selection fails */
	u_quad_t ip6s_sources_none;
	/* number of times that an address on the outgoing I/F is chosen */
	u_quad_t ip6s_sources_sameif[16];
	/* number of times that an address on a non-outgoing I/F is chosen */
	u_quad_t ip6s_sources_otherif[16];
	/*
	 * number of times that an address that has the same scope
	 * from the destination is chosen.
	 */
	u_quad_t ip6s_sources_samescope[16];
	/*
	 * number of times that an address that has a different scope
	 * from the destination is chosen.
	 */
	u_quad_t ip6s_sources_otherscope[16];
	
	/* number of times that a deprecated address is chosen */

	u_quad_t ip6s_sources_deprecated[16];

	u_quad_t ip6s_forward_cachehit;
	u_quad_t ip6s_forward_cachemiss;

	/* number of times that each rule of source selection is applied. */
	u_quad_t ip6s_sources_rule[16];
};

#ifdef _WRS_KERNEL
/*
 * IPv6 onion peeling state.
 * it will be initialized when we come into ip6_input().
 * XXX do not make it a kitchen sink!
 */
struct ip6aux {
	u_int32_t ip6a_flags;
#define IP6A_SWAP	0x01		/* swapped home/care-of on packet */
#define IP6A_HASEEN	0x02		/* HA was present */
#define IP6A_BRUID	0x04		/* BR Unique Identifier was present */
#define IP6A_RTALERTSEEN 0x08		/* rtalert present */
#define IP6A_ROUTEOPTIMIZED 0x10	/* route optimized packet */
#define IP6A_NOTUSEBC	0x20		/* do not requrie to lookup BC */
#define IP6A_TEMP_PROXYND_DEL	0x40	/* Marking for resuming proxy nd entry after sending sepcial BA */

	/* ip6.ip6_src */
	struct in6_addr ip6a_coa;	/* care of address of the peer */

	/* ip6.ip6_dst */
	struct in6_ifaddr *ip6a_dstia6;	/* my ifaddr that matches ip6_dst */

	/* rtalert */
	u_int16_t ip6a_rtalert;		/* rtalert option value */

	/*
	 * decapsulation history will be here.
	 * with IPsec it may not be accurate.
	 */
};

/* flags passed to ip6_output as last parameter */

#define	IPV6_UNSPECSRC		0x01	/* allow :: as the source address */
#define	IPV6_FORWARDING		0x02	/* most of IPv6 header exists */
#define	IPV6_MINMTU		    0x04	/* use minimum MTU (IPV6_USE_MIN_MTU) */
#define IPV6_MLDSEND       0x08 

/* the following is no longer used. To set the don't fragment option, use
 * the IP6PO_DONTFRAG
 */
#if 0 
#define IPV6_DONTFRAG   	0x08    /* Dont fragment - for tunnelLib */
#endif

#ifndef VIRTUAL_STACK
extern struct	ip6stat _ip6stat;	/* statistics */
extern u_int32_t ip6_id;		/* fragment identifier */
extern int	ip6_defhlim;		/* default hop limit */
extern int	ip6_defmcasthlim;	/* default multicast hop limit */
extern int	ip6_forwarding;		/* act as router? */
extern int	ip6_gif_hlim;		/* Hop limit for gif encap packet */
extern int	ip6_sendredirect;	/* send ICMPv6 redirect? */
extern int	ip6_forward_srcrt;	/* forward src-routed? */
extern int	ip6_use_deprecated;	/* allow deprecated addr as source */
extern int	ip6_rr_prune;		/* router renumbering prefix
					 * walk list every 5 sec.    */
extern int	ip6_mcast_pmtu;		/* enable pMTU discovery for multicast? */
extern int	ip6_v6only;

extern struct socket *ip6_mrouter; 	/* multicast routing daemon */
extern int	ip6_sendredirects;	/* send IP redirects when forwarding? */
extern int	ip6_maxfragpackets; /* Maximum packets in reassembly queue */
extern int	ip6_maxfrags;		/* Maximum fragments in reassembly queue */
extern int	ip6_sourcecheck;	/* Verify source interface */
extern int	ip6_sourcecheck_interval; /* Interval between log messages */
extern int	ip6_accept_rtadv;	/* Acts as a host not a router */
extern int	ip6_keepfaith;		/* Firewall Aided Internet Translator */
extern int	ip6_log_interval;
extern time_t	ip6_log_time;
extern int	ip6_hdrnestlimit; /* upper limit of # of extension headers */
extern int	ip6_dad_count;		/* DupAddrDetectionTransmits */

extern u_int32_t ip6_flow_seq;
extern int ip6_auto_flowlabel;
extern int ip6_auto_linklocal;
extern int	ip6_use_tempaddr; /* whether to use temporary addresses. */
extern int  ip6_prefer_tempaddr;
extern int	ip6_use_defzone; /* whether to use the default scope zone
				    when unspecified */

extern int	mldmaxsrcfilter;       /* maximum num .of msf per interface */
extern int	mldsomaxsrc;           /* maximum num .of msf per socket */
extern int	mldversion;
                    
#endif /* VIRTUAL_STACK */

extern int   ip6_anonportmin;		/* minimum ephemeral port */
extern int   ip6_anonportmax;		/* maximum ephemeral port */
extern int   ip6_lowportmin;		/* minimum reserved port */
extern int   ip6_lowportmax;		/* maximum reserved port */

extern struct	pr_usrreqs rip6_usrreqs;
struct sockopt;

struct inpcb;

int	icmp6_ctloutput __P((struct socket *, struct sockopt *sopt));

struct in6_ifaddr;
void	ip6_init __P((void));
void	ip6intr __P((void));
void	ip6_input __P((struct mbuf *));
struct in6_ifaddr *ip6_getdstifaddr __P((struct mbuf *));
void	ip6_freepcbopts __P((struct ip6_pktopts *));
void	ip6_freemoptions __P((struct ip6_moptions *));
int	ip6_unknown_opt __P((u_int8_t *, struct mbuf *, int));
char *	ip6_get_prevhdr __P((struct mbuf *, int));
int	ip6_nexthdr __P((struct mbuf *, int, int, int *));
int	ip6_lasthdr __P((struct mbuf *, int, int, int *));

struct mbuf *ip6_addaux __P((struct mbuf *));
struct mbuf *ip6_findaux __P((struct mbuf *));
void	ip6_delaux __P((struct mbuf *));

int	ip6_mforward __P((struct ip6_hdr *, struct ifnet *, struct mbuf *));
int	ip6_process_hopopts __P((struct mbuf *, u_int8_t *, int, u_int32_t *,
				 u_int32_t *));
void	ip6_savecontrol __P((struct inpcb *, struct mbuf *,
	struct mbuf **));
void	ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *,
	u_int32_t *));
int	ip6_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));

void	ip6_forward __P((struct mbuf *, int));

void	ip6_mloopback __P((struct ifnet *, struct mbuf *, struct sockaddr_in6 *));
int	ip6_output __P((struct mbuf *, struct ip6_pktopts *,
			struct route_in6 *,
			int,
			struct ip6_moptions *, struct ifnet **));
int	ip6_ctloutput __P((struct socket *, struct sockopt *sopt));

int	ip6_raw_ctloutput __P((struct socket *, struct sockopt *));
void	ip6_initpktopts __P((struct ip6_pktopts *));
int	ip6_setpktopts __P((struct mbuf *, struct ip6_pktopts *,
    struct ip6_pktopts *, int, int));
void	ip6_clearpktopts __P((struct ip6_pktopts *, int));
struct ip6_pktopts *ip6_copypktopts __P((struct ip6_pktopts *, int));
int	ip6_optlen __P((struct inpcb *));

int	route6_input __P((struct mbuf **, int *, int));

void	frag6_init __P((void));
int	frag6_input __P((struct mbuf **, int *, int));
void	frag6_slowtimo __P((void));
void	frag6_drain __P((void));

int	rip6_input __P((struct mbuf **, int *, int));
void	rip6_ctlinput __P((int, struct sockaddr *, void *));
int	rip6_ctloutput __P((struct socket *, struct sockopt *));
int	rip6_output __P((struct mbuf *, ...));
int	rip6_usrreq __P((struct socket *,
	    int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *));

int	dest6_input __P((struct mbuf **, int *, int));

#ifdef MIP6
int	dest6_mip6_hao __P((struct mbuf *, int, int));
int	mip6_input __P((struct mbuf **, int *, int));
#endif

struct in6_addr *in6_selectsrc __P((struct sockaddr_in6 *,
	struct ip6_pktopts *, struct ip6_moptions *, struct route_in6 *,
	struct in6_addr *, struct ifnet **, int *));
int in6_selectroute __P((struct sockaddr_in6 *, struct ip6_pktopts *,
	struct ip6_moptions *, struct route_in6 *, struct ifnet **,
	struct rtentry **, int));

u_int32_t ip6_randomid __P((void));
u_int32_t ip6_randomflowlabel __P((void));
#endif /* _WRS_KERNEL */

#ifdef __cplusplus
}
#endif
    
#endif /* !_NETINET6_IP6_VAR_H_ */