75 static bool ndisc_key_eq(const struct neighbour *neigh, const void *pkey);
78 static int ndisc_constructor(struct neighbour *neigh);
79 static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb);
80 static void ndisc_error_report(struct neighbour *neigh, struct sk_buff *skb);
327 static int ndisc_constructor(struct neighbour *neigh)  in ndisc_constructor()  argument
329 	struct in6_addr *addr = (struct in6_addr *)&neigh->primary_key;  in ndisc_constructor()
330 	struct net_device *dev = neigh->dev;  in ndisc_constructor()
341 	__neigh_parms_put(neigh->parms);  in ndisc_constructor()
342 	neigh->parms = neigh_parms_clone(parms);  in ndisc_constructor()
344 	neigh->type = is_multicast ? RTN_MULTICAST : RTN_UNICAST;  in ndisc_constructor()
346 		neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
347 		neigh->ops = &ndisc_direct_ops;  in ndisc_constructor()
348 		neigh->output = neigh_direct_output;  in ndisc_constructor()
351 			neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
352 			ndisc_mc_map(addr, neigh->ha, dev, 1);  in ndisc_constructor()
354 			neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
355 			memcpy(neigh->ha, dev->dev_addr, dev->addr_len);  in ndisc_constructor()
357 				neigh->type = RTN_LOCAL;  in ndisc_constructor()
359 			neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
360 			memcpy(neigh->ha, dev->broadcast, dev->addr_len);  in ndisc_constructor()
363 			neigh->ops = &ndisc_hh_ops;  in ndisc_constructor()
365 			neigh->ops = &ndisc_generic_ops;  in ndisc_constructor()
366 		if (neigh->nud_state&NUD_VALID)  in ndisc_constructor()
367 			neigh->output = neigh->ops->connected_output;  in ndisc_constructor()
369 			neigh->output = neigh->ops->output;  in ndisc_constructor()
723 static void ndisc_error_report(struct neighbour *neigh, struct sk_buff *skb)  in ndisc_error_report()  argument
735 static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)  in ndisc_solicit()  argument
739 	struct net_device *dev = neigh->dev;  in ndisc_solicit()
740 	struct in6_addr *target = (struct in6_addr *)&neigh->primary_key;  in ndisc_solicit()
741 	int probes = atomic_read(&neigh->probes);  in ndisc_solicit()
747 	probes -= NEIGH_VAR(neigh->parms, UCAST_PROBES);  in ndisc_solicit()
749 		if (!(READ_ONCE(neigh->nud_state) & NUD_VALID)) {  in ndisc_solicit()
755 	} else if ((probes -= NEIGH_VAR(neigh->parms, APP_PROBES)) < 0) {  in ndisc_solicit()
756 		neigh_app_ns(neigh);  in ndisc_solicit()
778 void ndisc_update(const struct net_device *dev, struct neighbour *neigh,  in ndisc_update()  argument
782 	neigh_update(neigh, lladdr, new, flags, 0);  in ndisc_update()
784 	ndisc_ops_update(dev, neigh, flags, icmp6_type, ndopts);  in ndisc_update()
799 	struct neighbour *neigh;  in ndisc_recv_ns()  local
949 	neigh = __neigh_lookup(&nd_tbl, saddr, dev,  in ndisc_recv_ns()
951 	if (neigh)  in ndisc_recv_ns()
952 		ndisc_update(dev, neigh, lladdr, NUD_STALE,  in ndisc_recv_ns()
956 	if (neigh || !dev->header_ops) {  in ndisc_recv_ns()
959 		if (neigh)  in ndisc_recv_ns()
960 			neigh_release(neigh);  in ndisc_recv_ns()
1003 	struct neighbour *neigh;  in ndisc_recv_na()  local
1065 	neigh = neigh_lookup(&nd_tbl, &msg->target, dev);  in ndisc_recv_na()
1083 	if (!neigh && lladdr && idev && idev->cnf.forwarding) {  in ndisc_recv_na()
1085 			neigh = neigh_create(&nd_tbl, &msg->target, dev);  in ndisc_recv_na()
1090 	if (neigh && !IS_ERR(neigh)) {  in ndisc_recv_na()
1091 		u8 old_flags = neigh->flags;  in ndisc_recv_na()
1094 		if (READ_ONCE(neigh->nud_state) & NUD_FAILED)  in ndisc_recv_na()
1109 		ndisc_update(dev, neigh, lladdr,  in ndisc_recv_na()
1117 		if ((old_flags & ~neigh->flags) & NTF_ROUTER) {  in ndisc_recv_na()
1125 		neigh_release(neigh);  in ndisc_recv_na()
1134 	struct neighbour *neigh;  in ndisc_recv_rs()  local
1172 	neigh = __neigh_lookup(&nd_tbl, saddr, skb->dev, 1);  in ndisc_recv_rs()
1173 	if (neigh) {  in ndisc_recv_rs()
1174 		ndisc_update(skb->dev, neigh, lladdr, NUD_STALE,  in ndisc_recv_rs()
1179 		neigh_release(neigh);  in ndisc_recv_rs()
1236 	struct neighbour *neigh = NULL;  in ndisc_router_discovery()  local
1357 		neigh = ip6_neigh_lookup(&rt->fib6_nh->fib_nh_gw6,  in ndisc_router_discovery()
1360 		if (!neigh) {  in ndisc_router_discovery()
1381 		if (neigh)  in ndisc_router_discovery()
1382 			neigh_release(neigh);  in ndisc_router_discovery()
1393 		neigh = ip6_neigh_lookup(&rt->fib6_nh->fib_nh_gw6,  in ndisc_router_discovery()
1396 		if (!neigh) {  in ndisc_router_discovery()
1403 		neigh->flags |= NTF_ROUTER;  in ndisc_router_discovery()
1468 	if (!neigh)  in ndisc_router_discovery()
1469 		neigh = __neigh_lookup(&nd_tbl, &ipv6_hdr(skb)->saddr,  in ndisc_router_discovery()
1471 	if (neigh) {  in ndisc_router_discovery()
1482 		ndisc_update(skb->dev, neigh, lladdr, NUD_STALE,  in ndisc_router_discovery()
1600 	if (neigh)  in ndisc_router_discovery()
1601 		neigh_release(neigh);  in ndisc_router_discovery()
1726 		struct neighbour *neigh = dst_neigh_lookup(skb_dst(skb), target);  in ndisc_send_redirect()  local
1727 		if (!neigh) {  in ndisc_send_redirect()
1733 		read_lock_bh(&neigh->lock);  in ndisc_send_redirect()
1734 		if (neigh->nud_state & NUD_VALID) {  in ndisc_send_redirect()
1735 			memcpy(ha_buf, neigh->ha, dev->addr_len);  in ndisc_send_redirect()
1736 			read_unlock_bh(&neigh->lock);  in ndisc_send_redirect()
1738 			optlen += ndisc_redirect_opt_addr_space(dev, neigh,  in ndisc_send_redirect()
1742 			read_unlock_bh(&neigh->lock);  in ndisc_send_redirect()
1744 		neigh_release(neigh);  in ndisc_send_redirect()