sys/netinet6/nd6.c

101 /* preventing too many loops in ND option parsing */
102 static VNET_DEFINE(int, nd6_maxndopt) = 10; /* max # of ND options allowed */
107 					 * ND entries */
318  * Reset ND level link MTU. This function is called when the physical MTU
319  * changes, which means we might have to adjust the ND level MTU.
386  * Take one ND option.
434  * Parse multiple ND options.
435  * This function is much easier to use, for ND routines that do not need
1646 #define ND	ndi->ndi
1648 		bzero(&ND, sizeof(ND));
1649 		ND.linkmtu = IN6_LINKMTU(ifp);
1650 		ND.maxmtu = ND_IFINFO(ifp)->maxmtu;
1651 		ND.basereachable = ND_IFINFO(ifp)->basereachable;
1652 		ND.reachable = ND_IFINFO(ifp)->reachable;
1653 		ND.retrans = ND_IFINFO(ifp)->retrans;
1654 		ND.flags = ND_IFINFO(ifp)->flags;
1655 		ND.recalctm = ND_IFINFO(ifp)->recalctm;
1656 		ND.chlim = ND_IFINFO(ifp)->chlim;
1659 		ND = *ND_IFINFO(ifp);
1667 		if (ND.linkmtu != 0) {
1668 			if (ND.linkmtu < IPV6_MMTU ||
1669 			    ND.linkmtu > IN6_LINKMTU(ifp)) {
1673 			ND_IFINFO(ifp)->linkmtu = ND.linkmtu;
1676 		if (ND.basereachable != 0) {
1679 			ND_IFINFO(ifp)->basereachable = ND.basereachable;
1680 			if (ND.basereachable != obasereachable)
1682 				    ND_COMPUTE_RTIME(ND.basereachable);
1684 		if (ND.retrans != 0)
1685 			ND_IFINFO(ifp)->retrans = ND.retrans;
1686 		if (ND.chlim != 0)
1687 			ND_IFINFO(ifp)->chlim = ND.chlim;
1695 		    !(ND.flags & ND6_IFF_IFDISABLED)) {
1717 				ND.flags |= ND6_IFF_IFDISABLED;
1727 			    (ND.flags & ND6_IFF_IFDISABLED)) {
1747 		if (ND.flags & ND6_IFF_AUTO_LINKLOCAL) {
1754 			} else if (!(ND.flags & ND6_IFF_IFDISABLED) &&
1779 		ND_IFINFO(ifp)->flags = ND.flags;
1781 #undef ND
2540 	 * - unidirectional tunnels needs no ND