bsd/net/route.c

340 #define	SINIFSCOPE(sa)	((struct sockaddr_inifscope *)(size_t)(sa))
341 #define	SIN6IFSCOPE(sa)	SIN6(sa)
343 #define	ASSERT_SINIFSCOPE(sa) {						\
344 	if ((sa)->sa_family != AF_INET ||				\
345 	    (sa)->sa_len < sizeof (struct sockaddr_in))			\
346 		panic("%s: bad sockaddr_in %p\n", __func__, sa);	\
349 #define	ASSERT_SIN6IFSCOPE(sa) {					\
350 	if ((sa)->sa_family != AF_INET6 ||				\
351 	    (sa)->sa_len < sizeof (struct sockaddr_in6))		\
352 		panic("%s: bad sockaddr_in %p\n", __func__, sa);	\
383 #define	INET_DEFAULT(sa)	\
384 	((sa)->sa_family == AF_INET && SIN(sa)->sin_addr.s_addr == 0)
386 #define	INET6_DEFAULT(sa)						\
387 	((sa)->sa_family == AF_INET6 &&					\
388 	IN6_IS_ADDR_UNSPECIFIED(&SIN6(sa)->sin6_addr))
390 #define	SA_DEFAULT(sa)	(INET_DEFAULT(sa) || INET6_DEFAULT(sa))
438 sin_set_ifscope(struct sockaddr *sa, unsigned int ifscope)
441 	ASSERT_SINIFSCOPE(sa);
443 	SINIFSCOPE(sa)->sin_scope_id = ifscope;
450 sin6_set_ifscope(struct sockaddr *sa, unsigned int ifscope)
453 	ASSERT_SIN6IFSCOPE(sa);
455 	SIN6IFSCOPE(sa)->sin6_scope_id = ifscope;
462 sin_get_ifscope(struct sockaddr *sa)
465 	ASSERT_SINIFSCOPE(sa);
467 	return (SINIFSCOPE(sa)->sin_scope_id);
474 sin6_get_ifscope(struct sockaddr *sa)
477 	ASSERT_SIN6IFSCOPE(sa);
479 	return (SIN6IFSCOPE(sa)->sin6_scope_id);
483 sin6_set_embedded_ifscope(struct sockaddr *sa, unsigned int ifscope)
486 	ASSERT_SIN6IFSCOPE(sa);
487 	VERIFY(IN6_IS_SCOPE_EMBED(&(SIN6(sa)->sin6_addr)));
489 	SIN6(sa)->sin6_addr.s6_addr16[1] = htons(ifscope);
493 sin6_get_embedded_ifscope(struct sockaddr *sa)
496 	ASSERT_SIN6IFSCOPE(sa);
498 	return (ntohs(SIN6(sa)->sin6_addr.s6_addr16[1]));
599 sa_trim(struct sockaddr *sa, int skip)
601 	caddr_t cp, base = (caddr_t)sa + skip;
603 	if (sa->sa_len <= skip)
604 		return (sa);
606 	for (cp = base + (sa->sa_len - skip); cp > base && cp[-1] == 0;)
609 	sa->sa_len = (cp - base) + skip;
610 	if (sa->sa_len < skip) {
613 		    sa->sa_len, skip);
615 	} else if (sa->sa_len == skip) {
617 		sa->sa_len = 0;
620 	return (sa);
632 rtm_scrub_ifscope(int type, int idx, struct sockaddr *hint, struct sockaddr *sa,
635 	struct sockaddr *ret = sa;
643 		if (sa->sa_family == AF_INET &&
644 		    SINIFSCOPE(sa)->sin_scope_id != IFSCOPE_NONE) {
645 			ret = sa_copy(sa, ss, NULL);
646 		} else if (sa->sa_family == AF_INET6 &&
647 		    SIN6IFSCOPE(sa)->sin6_scope_id != IFSCOPE_NONE) {
648 			ret = sa_copy(sa, ss, NULL);
676 		if (sa->sa_len > skip && sa->sa_len <= sizeof (*ss)) {
678 			bcopy(sa, ss, sa->sa_len);