87 static bool ndisc_key_eq(const struct neighbour *neigh, const void *pkey);
88 static int ndisc_constructor(struct neighbour *neigh);
89 static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb);
90 static void ndisc_error_report(struct neighbour *neigh, struct sk_buff *skb);
305 static int ndisc_constructor(struct neighbour *neigh)  in ndisc_constructor()  argument
307 	struct in6_addr *addr = (struct in6_addr *)&neigh->primary_key;  in ndisc_constructor()
308 	struct net_device *dev = neigh->dev;  in ndisc_constructor()
319 	__neigh_parms_put(neigh->parms);  in ndisc_constructor()
320 	neigh->parms = neigh_parms_clone(parms);  in ndisc_constructor()
322 	neigh->type = is_multicast ? RTN_MULTICAST : RTN_UNICAST;  in ndisc_constructor()
324 		neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
325 		neigh->ops = &ndisc_direct_ops;  in ndisc_constructor()
326 		neigh->output = neigh_direct_output;  in ndisc_constructor()
329 			neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
330 			ndisc_mc_map(addr, neigh->ha, dev, 1);  in ndisc_constructor()
332 			neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
333 			memcpy(neigh->ha, dev->dev_addr, dev->addr_len);  in ndisc_constructor()
335 				neigh->type = RTN_LOCAL;  in ndisc_constructor()
337 			neigh->nud_state = NUD_NOARP;  in ndisc_constructor()
338 			memcpy(neigh->ha, dev->broadcast, dev->addr_len);  in ndisc_constructor()
341 			neigh->ops = &ndisc_hh_ops;  in ndisc_constructor()
343 			neigh->ops = &ndisc_generic_ops;  in ndisc_constructor()
344 		if (neigh->nud_state&NUD_VALID)  in ndisc_constructor()
345 			neigh->output = neigh->ops->connected_output;  in ndisc_constructor()
347 			neigh->output = neigh->ops->output;  in ndisc_constructor()
477 void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,  in ndisc_send_na()  argument
554 void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,  in ndisc_send_ns()  argument
647 static void ndisc_error_report(struct neighbour *neigh, struct sk_buff *skb)  in ndisc_error_report()  argument
659 static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)  in ndisc_solicit()  argument
663 	struct net_device *dev = neigh->dev;  in ndisc_solicit()
664 	struct in6_addr *target = (struct in6_addr *)&neigh->primary_key;  in ndisc_solicit()
665 	int probes = atomic_read(&neigh->probes);  in ndisc_solicit()
671 	probes -= NEIGH_VAR(neigh->parms, UCAST_PROBES);  in ndisc_solicit()
673 		if (!(neigh->nud_state & NUD_VALID)) {  in ndisc_solicit()
678 		ndisc_send_ns(dev, neigh, target, target, saddr);  in ndisc_solicit()
679 	} else if ((probes -= NEIGH_VAR(neigh->parms, APP_PROBES)) < 0) {  in ndisc_solicit()
680 		neigh_app_ns(neigh);  in ndisc_solicit()
714 	struct neighbour *neigh;  in ndisc_recv_ns()  local
841 	neigh = __neigh_lookup(&nd_tbl, saddr, dev,  in ndisc_recv_ns()
843 	if (neigh)  in ndisc_recv_ns()
844 		neigh_update(neigh, lladdr, NUD_STALE,  in ndisc_recv_ns()
847 	if (neigh || !dev->header_ops) {  in ndisc_recv_ns()
848 		ndisc_send_na(dev, neigh, saddr, &msg->target,  in ndisc_recv_ns()
851 		if (neigh)  in ndisc_recv_ns()
852 			neigh_release(neigh);  in ndisc_recv_ns()
873 	struct neighbour *neigh;  in ndisc_recv_na()  local
926 	neigh = neigh_lookup(&nd_tbl, &msg->target, dev);  in ndisc_recv_na()
928 	if (neigh) {  in ndisc_recv_na()
929 		u8 old_flags = neigh->flags;  in ndisc_recv_na()
932 		if (neigh->nud_state & NUD_FAILED)  in ndisc_recv_na()
947 		neigh_update(neigh, lladdr,  in ndisc_recv_na()
954 		if ((old_flags & ~neigh->flags) & NTF_ROUTER) {  in ndisc_recv_na()
962 		neigh_release(neigh);  in ndisc_recv_na()
970 	struct neighbour *neigh;  in ndisc_recv_rs()  local
1009 	neigh = __neigh_lookup(&nd_tbl, saddr, skb->dev, 1);  in ndisc_recv_rs()
1010 	if (neigh) {  in ndisc_recv_rs()
1011 		neigh_update(neigh, lladdr, NUD_STALE,  in ndisc_recv_rs()
1015 		neigh_release(neigh);  in ndisc_recv_rs()
1070 	struct neighbour *neigh = NULL;  in ndisc_router_discovery()  local
1186 		neigh = dst_neigh_lookup(&rt->dst, &ipv6_hdr(skb)->saddr);  in ndisc_router_discovery()
1187 		if (!neigh) {  in ndisc_router_discovery()
1213 		neigh = dst_neigh_lookup(&rt->dst, &ipv6_hdr(skb)->saddr);  in ndisc_router_discovery()
1214 		if (!neigh) {  in ndisc_router_discovery()
1221 		neigh->flags |= NTF_ROUTER;  in ndisc_router_discovery()
1283 	if (!neigh)  in ndisc_router_discovery()
1284 		neigh = __neigh_lookup(&nd_tbl, &ipv6_hdr(skb)->saddr,  in ndisc_router_discovery()
1286 	if (neigh) {  in ndisc_router_discovery()
1297 		neigh_update(neigh, lladdr, NUD_STALE,  in ndisc_router_discovery()
1399 	if (neigh)  in ndisc_router_discovery()
1400 		neigh_release(neigh);  in ndisc_router_discovery()
1515 		struct neighbour *neigh = dst_neigh_lookup(skb_dst(skb), target);  in ndisc_send_redirect()  local
1516 		if (!neigh) {  in ndisc_send_redirect()
1522 		read_lock_bh(&neigh->lock);  in ndisc_send_redirect()
1523 		if (neigh->nud_state & NUD_VALID) {  in ndisc_send_redirect()
1524 			memcpy(ha_buf, neigh->ha, dev->addr_len);  in ndisc_send_redirect()
1525 			read_unlock_bh(&neigh->lock);  in ndisc_send_redirect()
1529 			read_unlock_bh(&neigh->lock);  in ndisc_send_redirect()
1531 		neigh_release(neigh);  in ndisc_send_redirect()