sys/netinet6/in6_pcb.c

112 in6_pcbbind(register struct inpcb *inp, struct sockaddr *nam,
115 	struct socket *so = inp->inp_socket;
117 	struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
122 	INP_WLOCK_ASSERT(inp);
127 	if (inp->inp_lport || !IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
132 		if ((error = prison_local_ip6(cred, &inp->in6p_laddr,
133 		    ((inp->inp_flags & IN6P_IPV6_V6ONLY) != 0))) != 0)
149 		    ((inp->inp_flags & IN6P_IPV6_V6ONLY) != 0))) != 0)
169 			    (inp->inp_flags & INP_BINDANY) == 0) {
199 			    priv_check_cred(inp->inp_cred,
211 				    (inp->inp_cred->cr_uid !=
215 				if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0 &&
229 					    (inp->inp_cred->cr_uid !=
252 			if ((inp->inp_flags & IN6P_IPV6_V6ONLY) == 0 &&
265 					     INADDR_ANY || ((inp->inp_vflag &
277 		inp->in6p_laddr = sin6->sin6_addr;
280 		if ((error = in6_pcbsetport(&inp->in6p_laddr, inp, cred)) != 0) {
282 			inp->in6p_laddr = in6addr_any;
286 		inp->inp_lport = lport;
287 		if (in_pcbinshash(inp) != 0) {
288 			inp->in6p_laddr = in6addr_any;
289 			inp->inp_lport = 0;
308 in6_pcbladdr(register struct inpcb *inp, struct sockaddr *nam,
317 	INP_WLOCK_ASSERT(inp);
318 	INP_HASH_WLOCK_ASSERT(inp->inp_pcbinfo);	/* XXXRW: why? */
340 	if ((error = prison_remote_ip6(inp->inp_cred, &sin6->sin6_addr)) != 0)
343 	error = in6_selectsrc(sin6, inp->in6p_outputopts,
344 	    inp, NULL, inp->inp_cred, &ifp, &in6a);
379 in6_pcbconnect_mbuf(register struct inpcb *inp, struct sockaddr *nam,
382 	struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
387 	INP_WLOCK_ASSERT(inp);
394 	if ((error = in6_pcbladdr(inp, nam, &addr6)) != 0)
399 			      IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)
400 			      ? &addr6 : &inp->in6p_laddr,
401 			      inp->inp_lport, 0, NULL) != NULL) {
404 	if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) {
405 		if (inp->inp_lport == 0) {
406 			error = in6_pcbbind(inp, (struct sockaddr *)0, cred);
410 		inp->in6p_laddr = addr6;
412 	inp->in6p_faddr = sin6->sin6_addr;
413 	inp->inp_fport = sin6->sin6_port;
415 	inp->inp_flow &= ~IPV6_FLOWLABEL_MASK;
416 	if (inp->inp_flags & IN6P_AUTOFLOWLABEL)
417 		inp->inp_flow |=
420 	in_pcbrehash_mbuf(inp, m);
426 in6_pcbconnect(struct inpcb *inp, struct sockaddr *nam, struct ucred *cred)
429 	return (in6_pcbconnect_mbuf(inp, nam, cred, NULL));
433 in6_pcbdisconnect(struct inpcb *inp)
436 	INP_WLOCK_ASSERT(inp);
437 	INP_HASH_WLOCK_ASSERT(inp->inp_pcbinfo);
439 	bzero((caddr_t)&inp->in6p_faddr, sizeof(inp->in6p_faddr));
440 	inp->inp_fport = 0;
442 	inp->inp_flow &= ~IPV6_FLOWLABEL_MASK;
443 	in_pcbrehash(inp);
484 	register struct inpcb *inp;
488 	inp = sotoinpcb(so);
489 	KASSERT(inp != NULL, ("in6_getsockaddr: inp == NULL"));
491 	INP_RLOCK(inp);
492 	port = inp->inp_lport;
493 	addr = inp->in6p_laddr;
494 	INP_RUNLOCK(inp);
503 	struct inpcb *inp;
507 	inp = sotoinpcb(so);
508 	KASSERT(inp != NULL, ("in6_getpeeraddr: inp == NULL"));
510 	INP_RLOCK(inp);
511 	port = inp->inp_fport;
512 	addr = inp->in6p_faddr;
513 	INP_RUNLOCK(inp);
522 	struct	inpcb *inp;
525 	inp = sotoinpcb(so);
526 	KASSERT(inp != NULL, ("in6_mapped_sockaddr: inp == NULL"));
529 	if ((inp->inp_vflag & (INP_IPV4 | INP_IPV6)) == INP_IPV4) {
546 	struct	inpcb *inp;
549 	inp = sotoinpcb(so);
550 	KASSERT(inp != NULL, ("in6_mapped_peeraddr: inp == NULL"));
553 	if ((inp->inp_vflag & (INP_IPV4 | INP_IPV6)) == INP_IPV4) {
580 	struct inpcb *inp, *inp_temp;
617 	LIST_FOREACH_SAFE(inp, pcbinfo->ipi_listhead, inp_list, inp_temp) {
618 		INP_WLOCK(inp);
619 		if ((inp->inp_vflag & INP_IPV6) == 0) {
620 			INP_WUNLOCK(inp);
633 		if (cmd == PRC_MSGSIZE && (inp->inp_flags & IN6P_MTU) != 0 &&
634 		    (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) ||
635 		     IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, &sa6_dst->sin6_addr))) {
636 			ip6_notify_pmtu(inp, (struct sockaddr_in6 *)dst,
649 		    inp->inp_socket != NULL &&
650 		    flowinfo == (inp->inp_flow & IPV6_FLOWLABEL_MASK) &&
651 		    IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, &sa6_src.sin6_addr))
653 		else if (!IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr,
655 			 inp->inp_socket == 0 ||
656 			 (lport && inp->inp_lport != lport) ||
658 			  !IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr,
660 			 (fport && inp->inp_fport != fport)) {
661 			INP_WUNLOCK(inp);
667 			if ((*notify)(inp, errno))
668 				INP_WUNLOCK(inp);
670 			INP_WUNLOCK(inp);
683 	register struct inpcb *inp;
699 		LIST_FOREACH(inp, head, inp_hash) {
700 			/* XXX inp locking */
701 			if ((inp->inp_vflag & INP_IPV6) == 0)
703 			if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) &&
704 			    IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) &&
705 			    inp->inp_lport == lport) {
709 					inp->inp_cred->cr_prison))
710 					return (inp);
738 			LIST_FOREACH(inp, &phd->phd_pcblist, inp_portlist) {
742 					inp->inp_cred->cr_prison))
744 				/* XXX inp locking */
745 				if ((inp->inp_vflag & INP_IPV6) == 0)
747 				if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr))
750 					&inp->in6p_laddr)) {
754 					    &inp->in6p_laddr, laddr))
761 					match = inp;
834 in6_rtchange(struct inpcb *inp, int errno)
839 	return inp;
852 	struct inpcb *inp, *tmpinp;
869 	LIST_FOREACH(inp, head, inp_pcbgrouphash) {
870 		/* XXX inp locking */
871 		if ((inp->inp_vflag & INP_IPV6) == 0)
873 		if (IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, faddr) &&
874 		    IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) &&
875 		    inp->inp_fport == fport &&
876 		    inp->inp_lport == lport) {
879 			 * the inp here, without any checks.
882 			if (prison_flag(inp->inp_cred, PR_IP6))
885 				tmpinp = inp;
889 		inp = tmpinp;
910 		LIST_FOREACH(inp, head, inp_pcbgroup_wild) {
911 			/* XXX inp locking */
912 			if ((inp->inp_vflag & INP_IPV6) == 0)
915 			if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) ||
916 			    inp->inp_lport != lport) {
920 			/* XXX inp locking */
921 			if (faith && (inp->inp_flags & INP_FAITH) == 0)
924 			injail = prison_flag(inp->inp_cred, PR_IP6);
926 				if (prison_check_ip6(inp->inp_cred,
934 			if (IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr)) {
938 					local_exact = inp;
939 			} else if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) {
941 					jail_wild = inp;
943 					local_wild = inp;
947 		inp = jail_wild;
948 		if (inp == NULL)
949 			inp = jail_wild;
950 		if (inp == NULL)
951 			inp = local_exact;
952 		if (inp == NULL)
953 			inp = local_wild;
954 		if (inp != NULL)
961 	in_pcbref(inp);
964 		INP_WLOCK(inp);
965 		if (in_pcbrele_wlocked(inp))
968 		INP_RLOCK(inp);
969 		if (in_pcbrele_rlocked(inp))
973 	return (inp);
986 	struct inpcb *inp, *tmpinp;
1007 	LIST_FOREACH(inp, head, inp_hash) {
1008 		/* XXX inp locking */
1009 		if ((inp->inp_vflag & INP_IPV6) == 0)
1011 		if (IN6_ARE_ADDR_EQUAL(&inp->in6p_faddr, faddr) &&
1012 		    IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr) &&
1013 		    inp->inp_fport == fport &&
1014 		    inp->inp_lport == lport) {
1017 			 * the inp here, without any checks.
1020 			if (prison_flag(inp->inp_cred, PR_IP6))
1021 				return (inp);
1023 				tmpinp = inp;
1046 		LIST_FOREACH(inp, head, inp_hash) {
1047 			/* XXX inp locking */
1048 			if ((inp->inp_vflag & INP_IPV6) == 0)
1051 			if (!IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_faddr) ||
1052 			    inp->inp_lport != lport) {
1056 			/* XXX inp locking */
1057 			if (faith && (inp->inp_flags & INP_FAITH) == 0)
1060 			injail = prison_flag(inp->inp_cred, PR_IP6);
1062 				if (prison_check_ip6(inp->inp_cred,
1070 			if (IN6_ARE_ADDR_EQUAL(&inp->in6p_laddr, laddr)) {
1072 					return (inp);
1074 					local_exact = inp;
1075 			} else if (IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr)) {
1077 					jail_wild = inp;
1079 					local_wild = inp;
1107 	struct inpcb *inp;
1110 	inp = in6_pcblookup_hash_locked(pcbinfo, faddr, fport, laddr, lport,
1112 	if (inp != NULL) {
1113 		in_pcbref(inp);
1116 			INP_WLOCK(inp);
1117 			if (in_pcbrele_wlocked(inp))
1120 			INP_RLOCK(inp);
1121 			if (in_pcbrele_rlocked(inp))
1127 	return (inp);