72 static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk,  in __raw_v6_lookup()  argument
78 	sk_for_each_from(sk)  in __raw_v6_lookup()
79 		if (inet_sk(sk)->inet_num == num) {  in __raw_v6_lookup()
81 			if (!net_eq(sock_net(sk), net))  in __raw_v6_lookup()
84 			if (!ipv6_addr_any(&sk->sk_v6_daddr) &&  in __raw_v6_lookup()
85 			    !ipv6_addr_equal(&sk->sk_v6_daddr, rmt_addr))  in __raw_v6_lookup()
88 			if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)  in __raw_v6_lookup()
91 			if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {  in __raw_v6_lookup()
92 				if (ipv6_addr_equal(&sk->sk_v6_rcv_saddr, loc_addr))  in __raw_v6_lookup()
95 				    inet6_mc_check(sk, loc_addr, rmt_addr))  in __raw_v6_lookup()
101 	sk = NULL;  in __raw_v6_lookup()
103 	return sk;  in __raw_v6_lookup()
110 static int icmpv6_filter(const struct sock *sk, const struct sk_buff *skb)  in icmpv6_filter()  argument
121 		const __u32 *data = &raw6_sk(sk)->filter.data[0];  in icmpv6_filter()
162 	struct sock *sk;  in ipv6_raw_deliver()  local
173 	sk = sk_head(&raw_v6_hashinfo.ht[hash]);  in ipv6_raw_deliver()
175 	if (!sk)  in ipv6_raw_deliver()
179 	sk = __raw_v6_lookup(net, sk, nexthdr, daddr, saddr, inet6_iif(skb));  in ipv6_raw_deliver()
181 	while (sk) {  in ipv6_raw_deliver()
187 			filtered = icmpv6_filter(sk, skb);  in ipv6_raw_deliver()
202 			filtered = filter ? (*filter)(sk, skb) : 0;  in ipv6_raw_deliver()
219 				rawv6_rcv(sk, clone);  in ipv6_raw_deliver()
222 		sk = __raw_v6_lookup(net, sk_next(sk), nexthdr, daddr, saddr,  in ipv6_raw_deliver()
242 static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)  in rawv6_bind()  argument
244 	struct inet_sock *inet = inet_sk(sk);  in rawv6_bind()
245 	struct ipv6_pinfo *np = inet6_sk(sk);  in rawv6_bind()
263 	lock_sock(sk);  in rawv6_bind()
266 	if (sk->sk_state != TCP_CLOSE)  in rawv6_bind()
280 				sk->sk_bound_dev_if = addr->sin6_scope_id;  in rawv6_bind()
284 			if (!sk->sk_bound_dev_if)  in rawv6_bind()
288 			dev = dev_get_by_index_rcu(sock_net(sk),  in rawv6_bind()
289 						   sk->sk_bound_dev_if);  in rawv6_bind()
299 		    !sock_net(sk)->ipv6.sysctl.ip_nonlocal_bind) {  in rawv6_bind()
301 			if (!ipv6_chk_addr(sock_net(sk), &addr->sin6_addr,  in rawv6_bind()
309 	sk->sk_v6_rcv_saddr = addr->sin6_addr;  in rawv6_bind()
316 	release_sock(sk);  in rawv6_bind()
320 static void rawv6_err(struct sock *sk, struct sk_buff *skb,  in rawv6_err()  argument
324 	struct inet_sock *inet = inet_sk(sk);  in rawv6_err()
325 	struct ipv6_pinfo *np = inet6_sk(sk);  in rawv6_err()
334 	if (!np->recverr && sk->sk_state != TCP_ESTABLISHED)  in rawv6_err()
339 		ip6_sk_update_pmtu(skb, sk, info);  in rawv6_err()
343 		ip6_sk_redirect(skb, sk);  in rawv6_err()
350 		ipv6_icmp_error(sk, skb, err, 0, ntohl(info), payload);  in rawv6_err()
354 		sk->sk_err = err;  in rawv6_err()
355 		sk->sk_error_report(sk);  in rawv6_err()
362 	struct sock *sk;  in raw6_icmp_error()  local
370 	sk = sk_head(&raw_v6_hashinfo.ht[hash]);  in raw6_icmp_error()
371 	if (sk) {  in raw6_icmp_error()
378 		while ((sk = __raw_v6_lookup(net, sk, nexthdr, saddr, daddr,  in raw6_icmp_error()
380 			rawv6_err(sk, skb, NULL, type, code,  in raw6_icmp_error()
382 			sk = sk_next(sk);  in raw6_icmp_error()
388 static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)  in rawv6_rcv_skb()  argument
390 	if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&  in rawv6_rcv_skb()
392 		atomic_inc(&sk->sk_drops);  in rawv6_rcv_skb()
399 	if (sock_queue_rcv_skb(sk, skb) < 0) {  in rawv6_rcv_skb()
414 int rawv6_rcv(struct sock *sk, struct sk_buff *skb)  in rawv6_rcv()  argument
416 	struct inet_sock *inet = inet_sk(sk);  in rawv6_rcv()
417 	struct raw6_sock *rp = raw6_sk(sk);  in rawv6_rcv()
419 	if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {  in rawv6_rcv()
420 		atomic_inc(&sk->sk_drops);  in rawv6_rcv()
444 			atomic_inc(&sk->sk_drops);  in rawv6_rcv()
450 	rawv6_rcv_skb(sk, skb);  in rawv6_rcv()
460 static int rawv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,  in rawv6_recvmsg()  argument
463 	struct ipv6_pinfo *np = inet6_sk(sk);  in rawv6_recvmsg()
473 		return ipv6_recv_error(sk, msg, len, addr_len);  in rawv6_recvmsg()
476 		return ipv6_recv_rxpmtu(sk, msg, len, addr_len);  in rawv6_recvmsg()
478 	skb = skb_recv_datagram(sk, flags, noblock, &err);  in rawv6_recvmsg()
513 	sock_recv_ts_and_drops(msg, sk, skb);  in rawv6_recvmsg()
516 		ip6_datagram_recv_ctl(sk, msg, skb);  in rawv6_recvmsg()
523 	skb_free_datagram(sk, skb);  in rawv6_recvmsg()
528 	skb_kill_datagram(sk, skb, flags);  in rawv6_recvmsg()
537 static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,  in rawv6_push_pending_frames()  argument
551 	skb = skb_peek(&sk->sk_write_queue);  in rawv6_push_pending_frames()
556 	total_len = inet_sk(sk)->cork.base.length;  in rawv6_push_pending_frames()
559 		ip6_flush_pending_frames(sk);  in rawv6_push_pending_frames()
564 	if (skb_queue_len(&sk->sk_write_queue) == 1) {  in rawv6_push_pending_frames()
573 		skb_queue_walk(&sk->sk_write_queue, skb) {  in rawv6_push_pending_frames()
607 	err = ip6_push_pending_frames(sk);  in rawv6_push_pending_frames()
612 static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,  in rawv6_send_hdrinc()  argument
616 	struct ipv6_pinfo *np = inet6_sk(sk);  in rawv6_send_hdrinc()
617 	struct net *net = sock_net(sk);  in rawv6_send_hdrinc()
626 		ipv6_local_error(sk, EMSGSIZE, fl6, rt->dst.dev->mtu);  in rawv6_send_hdrinc()
632 	skb = sock_alloc_send_skb(sk,  in rawv6_send_hdrinc()
640 	skb->priority = sk->sk_priority;  in rawv6_send_hdrinc()
641 	skb->mark = sk->sk_mark;  in rawv6_send_hdrinc()
657 	err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk, skb,  in rawv6_send_hdrinc()
734 static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)  in rawv6_sendmsg()  argument
740 	struct inet_sock *inet = inet_sk(sk);  in rawv6_sendmsg()
741 	struct ipv6_pinfo *np = inet6_sk(sk);  in rawv6_sendmsg()
742 	struct raw6_sock *rp = raw6_sk(sk);  in rawv6_sendmsg()
770 	fl6.flowi6_mark = sk->sk_mark;  in rawv6_sendmsg()
794 				flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);  in rawv6_sendmsg()
804 		if (sk->sk_state == TCP_ESTABLISHED &&  in rawv6_sendmsg()
805 		    ipv6_addr_equal(daddr, &sk->sk_v6_daddr))  in rawv6_sendmsg()
806 			daddr = &sk->sk_v6_daddr;  in rawv6_sendmsg()
813 		if (sk->sk_state != TCP_ESTABLISHED)  in rawv6_sendmsg()
817 		daddr = &sk->sk_v6_daddr;  in rawv6_sendmsg()
822 		fl6.flowi6_oif = sk->sk_bound_dev_if;  in rawv6_sendmsg()
829 		err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt,  in rawv6_sendmsg()
836 			flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);  in rawv6_sendmsg()
871 	security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));  in rawv6_sendmsg()
876 	dst = ip6_dst_lookup_flow(sk, &fl6, final_p);  in rawv6_sendmsg()
895 		err = rawv6_send_hdrinc(sk, msg, len, &fl6, &dst, msg->msg_flags);  in rawv6_sendmsg()
897 		lock_sock(sk);  in rawv6_sendmsg()
898 		err = ip6_append_data(sk, raw6_getfrag, &rfv,  in rawv6_sendmsg()
903 			ip6_flush_pending_frames(sk);  in rawv6_sendmsg()
905 			err = rawv6_push_pending_frames(sk, &fl6, rp);  in rawv6_sendmsg()
906 		release_sock(sk);  in rawv6_sendmsg()
922 static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,  in rawv6_seticmpfilter()  argument
929 		if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))  in rawv6_seticmpfilter()
939 static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,  in rawv6_geticmpfilter()  argument
954 		if (copy_to_user(optval, &raw6_sk(sk)->filter, len))  in rawv6_geticmpfilter()
965 static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,  in do_rawv6_setsockopt()  argument
968 	struct raw6_sock *rp = raw6_sk(sk);  in do_rawv6_setsockopt()
976 		if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 &&  in do_rawv6_setsockopt()
1007 static int rawv6_setsockopt(struct sock *sk, int level, int optname,  in rawv6_setsockopt()  argument
1015 		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)  in rawv6_setsockopt()
1017 		return rawv6_seticmpfilter(sk, level, optname, optval, optlen);  in rawv6_setsockopt()
1022 		return ipv6_setsockopt(sk, level, optname, optval, optlen);  in rawv6_setsockopt()
1025 	return do_rawv6_setsockopt(sk, level, optname, optval, optlen);  in rawv6_setsockopt()
1029 static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,  in compat_rawv6_setsockopt()  argument
1036 		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)  in compat_rawv6_setsockopt()
1038 		return rawv6_seticmpfilter(sk, level, optname, optval, optlen);  in compat_rawv6_setsockopt()
1043 		return compat_ipv6_setsockopt(sk, level, optname,  in compat_rawv6_setsockopt()
1046 	return do_rawv6_setsockopt(sk, level, optname, optval, optlen);  in compat_rawv6_setsockopt()
1050 static int do_rawv6_getsockopt(struct sock *sk, int level, int optname,  in do_rawv6_getsockopt()  argument
1053 	struct raw6_sock *rp = raw6_sk(sk);  in do_rawv6_getsockopt()
1085 static int rawv6_getsockopt(struct sock *sk, int level, int optname,  in rawv6_getsockopt()  argument
1093 		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)  in rawv6_getsockopt()
1095 		return rawv6_geticmpfilter(sk, level, optname, optval, optlen);  in rawv6_getsockopt()
1100 		return ipv6_getsockopt(sk, level, optname, optval, optlen);  in rawv6_getsockopt()
1103 	return do_rawv6_getsockopt(sk, level, optname, optval, optlen);  in rawv6_getsockopt()
1107 static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,  in compat_rawv6_getsockopt()  argument
1114 		if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)  in compat_rawv6_getsockopt()
1116 		return rawv6_geticmpfilter(sk, level, optname, optval, optlen);  in compat_rawv6_getsockopt()
1121 		return compat_ipv6_getsockopt(sk, level, optname,  in compat_rawv6_getsockopt()
1124 	return do_rawv6_getsockopt(sk, level, optname, optval, optlen);  in compat_rawv6_getsockopt()
1128 static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)  in rawv6_ioctl()  argument
1132 		int amount = sk_wmem_alloc_get(sk);  in rawv6_ioctl()
1140 		spin_lock_bh(&sk->sk_receive_queue.lock);  in rawv6_ioctl()
1141 		skb = skb_peek(&sk->sk_receive_queue);  in rawv6_ioctl()
1145 		spin_unlock_bh(&sk->sk_receive_queue.lock);  in rawv6_ioctl()
1151 		return ip6mr_ioctl(sk, cmd, (void __user *)arg);  in rawv6_ioctl()
1159 static int compat_rawv6_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)  in compat_rawv6_ioctl()  argument
1167 		return ip6mr_compat_ioctl(sk, cmd, compat_ptr(arg));  in compat_rawv6_ioctl()
1175 static void rawv6_close(struct sock *sk, long timeout)  in rawv6_close()  argument
1177 	if (inet_sk(sk)->inet_num == IPPROTO_RAW)  in rawv6_close()
1178 		ip6_ra_control(sk, -1);  in rawv6_close()
1179 	ip6mr_sk_done(sk);  in rawv6_close()
1180 	sk_common_release(sk);  in rawv6_close()
1183 static void raw6_destroy(struct sock *sk)  in raw6_destroy()  argument
1185 	lock_sock(sk);  in raw6_destroy()
1186 	ip6_flush_pending_frames(sk);  in raw6_destroy()
1187 	release_sock(sk);  in raw6_destroy()
1189 	inet6_destroy_sock(sk);  in raw6_destroy()
1192 static int rawv6_init_sk(struct sock *sk)  in rawv6_init_sk()  argument
1194 	struct raw6_sock *rp = raw6_sk(sk);  in rawv6_init_sk()
1196 	switch (inet_sk(sk)->inet_num) {  in rawv6_init_sk()