61 int ip6_ra_control(struct sock *sk, int sel)  in ip6_ra_control()  argument
66 	if (sk->sk_type != SOCK_RAW || inet_sk(sk)->inet_num != IPPROTO_RAW)  in ip6_ra_control()
73 		if (ra->sk == sk) {  in ip6_ra_control()
83 			sock_put(sk);  in ip6_ra_control()
92 	new_ra->sk = sk;  in ip6_ra_control()
96 	sock_hold(sk);  in ip6_ra_control()
102 struct ipv6_txoptions *ipv6_update_options(struct sock *sk,  in ipv6_update_options()  argument
105 	if (inet_sk(sk)->is_icsk) {  in ipv6_update_options()
107 		    !((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) &&  in ipv6_update_options()
108 		    inet_sk(sk)->inet_daddr != LOOPBACK4_IPV6) {  in ipv6_update_options()
109 			struct inet_connection_sock *icsk = inet_csk(sk);  in ipv6_update_options()
111 			icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);  in ipv6_update_options()
114 	opt = xchg((__force struct ipv6_txoptions **)&inet6_sk(sk)->opt,  in ipv6_update_options()
116 	sk_dst_reset(sk);  in ipv6_update_options()
140 static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,  in do_ipv6_setsockopt()  argument
143 	struct ipv6_pinfo *np = inet6_sk(sk);  in do_ipv6_setsockopt()
144 	struct net *net = sock_net(sk);  in do_ipv6_setsockopt()
162 		return ip6_mroute_setsockopt(sk, optname, optval, optlen);  in do_ipv6_setsockopt()
166 	lock_sock(sk);  in do_ipv6_setsockopt()
177 			if (sk->sk_type == SOCK_RAW)  in do_ipv6_setsockopt()
180 			if (sk->sk_protocol == IPPROTO_UDP ||  in do_ipv6_setsockopt()
181 			    sk->sk_protocol == IPPROTO_UDPLITE) {  in do_ipv6_setsockopt()
182 				struct udp_sock *up = udp_sk(sk);  in do_ipv6_setsockopt()
187 			} else if (sk->sk_protocol != IPPROTO_TCP)  in do_ipv6_setsockopt()
190 			if (sk->sk_state != TCP_ESTABLISHED) {  in do_ipv6_setsockopt()
195 			if (ipv6_only_sock(sk) ||  in do_ipv6_setsockopt()
196 			    !ipv6_addr_v4mapped(&sk->sk_v6_daddr)) {  in do_ipv6_setsockopt()
201 			fl6_free_socklist(sk);  in do_ipv6_setsockopt()
202 			ipv6_sock_mc_close(sk);  in do_ipv6_setsockopt()
209 			sk_refcnt_debug_dec(sk);  in do_ipv6_setsockopt()
211 			if (sk->sk_protocol == IPPROTO_TCP) {  in do_ipv6_setsockopt()
212 				struct inet_connection_sock *icsk = inet_csk(sk);  in do_ipv6_setsockopt()
214 				sock_prot_inuse_add(net, sk->sk_prot, -1);  in do_ipv6_setsockopt()
217 				sk->sk_prot = &tcp_prot;  in do_ipv6_setsockopt()
219 				sk->sk_socket->ops = &inet_stream_ops;  in do_ipv6_setsockopt()
220 				sk->sk_family = PF_INET;  in do_ipv6_setsockopt()
221 				tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);  in do_ipv6_setsockopt()
225 				if (sk->sk_protocol == IPPROTO_UDPLITE)  in do_ipv6_setsockopt()
228 				sock_prot_inuse_add(net, sk->sk_prot, -1);  in do_ipv6_setsockopt()
231 				sk->sk_prot = prot;  in do_ipv6_setsockopt()
232 				sk->sk_socket->ops = &inet_dgram_ops;  in do_ipv6_setsockopt()
233 				sk->sk_family = PF_INET;  in do_ipv6_setsockopt()
238 				atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
244 			sk->sk_destruct = inet_sock_destruct;  in do_ipv6_setsockopt()
249 			sk_refcnt_debug_inc(sk);  in do_ipv6_setsockopt()
258 		    inet_sk(sk)->inet_num)  in do_ipv6_setsockopt()
260 		sk->sk_ipv6only = valbool;  in do_ipv6_setsockopt()
376 		inet_sk(sk)->transparent = valbool;  in do_ipv6_setsockopt()
410 		opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk));  in do_ipv6_setsockopt()
411 		opt = ipv6_renew_options(sk, opt, optname,  in do_ipv6_setsockopt()
438 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
441 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
460 		if (sk->sk_bound_dev_if && pkt.ipi6_ifindex != sk->sk_bound_dev_if)  in do_ipv6_setsockopt()
477 		fl6.flowi6_oif = sk->sk_bound_dev_if;  in do_ipv6_setsockopt()
478 		fl6.flowi6_mark = sk->sk_mark;  in do_ipv6_setsockopt()
490 		opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);  in do_ipv6_setsockopt()
505 		retv = ip6_datagram_send_ctl(net, sk, &msg, &fl6, opt, &junk,  in do_ipv6_setsockopt()
511 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
514 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
529 		if (sk->sk_type == SOCK_STREAM)  in do_ipv6_setsockopt()
570 		if (sk->sk_bound_dev_if)  in do_ipv6_setsockopt()
579 		if (sk->sk_type == SOCK_STREAM)  in do_ipv6_setsockopt()
587 			if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)  in do_ipv6_setsockopt()
609 		if (inet_sk(sk)->is_icsk)  in do_ipv6_setsockopt()
617 			retv = ipv6_sock_mc_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);  in do_ipv6_setsockopt()
619 			retv = ipv6_sock_mc_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);  in do_ipv6_setsockopt()
635 			retv = ipv6_sock_ac_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_acaddr);  in do_ipv6_setsockopt()
637 			retv = ipv6_sock_ac_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_acaddr);  in do_ipv6_setsockopt()
658 			retv = ipv6_sock_mc_join(sk, greq.gr_interface,  in do_ipv6_setsockopt()
661 			retv = ipv6_sock_mc_drop(sk, greq.gr_interface,  in do_ipv6_setsockopt()
694 			retv = ipv6_sock_mc_join(sk, greqs.gsr_interface,  in do_ipv6_setsockopt()
705 		retv = ip6_mc_source(add, omode, sk, &greqs);  in do_ipv6_setsockopt()
740 		retv = ip6_mc_msfilter(sk, gsf);  in do_ipv6_setsockopt()
748 		retv = ip6_ra_control(sk, val);  in do_ipv6_setsockopt()
771 			skb_queue_purge(&sk->sk_error_queue);  in do_ipv6_setsockopt()
781 		retv = ipv6_flowlabel_opt(sk, optval, optlen);  in do_ipv6_setsockopt()
788 		retv = xfrm_user_policy(sk, optname, optval, optlen);  in do_ipv6_setsockopt()
871 	release_sock(sk);  in do_ipv6_setsockopt()
878 	release_sock(sk);  in do_ipv6_setsockopt()
884 int ipv6_setsockopt(struct sock *sk, int level, int optname,  in ipv6_setsockopt()  argument
889 	if (level == SOL_IP && sk->sk_type != SOCK_RAW)  in ipv6_setsockopt()
890 		return udp_prot.setsockopt(sk, level, optname, optval, optlen);  in ipv6_setsockopt()
895 	err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);  in ipv6_setsockopt()
900 		lock_sock(sk);  in ipv6_setsockopt()
901 		err = nf_setsockopt(sk, PF_INET6, optname, optval,  in ipv6_setsockopt()
903 		release_sock(sk);  in ipv6_setsockopt()
911 int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,  in compat_ipv6_setsockopt()  argument
916 	if (level == SOL_IP && sk->sk_type != SOCK_RAW) {  in compat_ipv6_setsockopt()
918 			return udp_prot.compat_setsockopt(sk, level, optname,  in compat_ipv6_setsockopt()
920 		return udp_prot.setsockopt(sk, level, optname, optval, optlen);  in compat_ipv6_setsockopt()
927 		return compat_mc_setsockopt(sk, level, optname, optval, optlen,  in compat_ipv6_setsockopt()
930 	err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);  in compat_ipv6_setsockopt()
935 		lock_sock(sk);  in compat_ipv6_setsockopt()
936 		err = compat_nf_setsockopt(sk, PF_INET6, optname,  in compat_ipv6_setsockopt()
938 		release_sock(sk);  in compat_ipv6_setsockopt()
946 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_getsockopt_sticky()  argument
980 static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,  in do_ipv6_getsockopt()  argument
983 	struct ipv6_pinfo *np = inet6_sk(sk);  in do_ipv6_getsockopt()
988 		return ip6_mroute_getsockopt(sk, optname, optval, optlen);  in do_ipv6_getsockopt()
994 		if (sk->sk_protocol != IPPROTO_UDP &&  in do_ipv6_getsockopt()
995 		    sk->sk_protocol != IPPROTO_UDPLITE &&  in do_ipv6_getsockopt()
996 		    sk->sk_protocol != IPPROTO_TCP)  in do_ipv6_getsockopt()
998 		if (sk->sk_state != TCP_ESTABLISHED)  in do_ipv6_getsockopt()
1000 		val = sk->sk_family;  in do_ipv6_getsockopt()
1013 		lock_sock(sk);  in do_ipv6_getsockopt()
1014 		err = ip6_mc_msfget(sk, &gsf,  in do_ipv6_getsockopt()
1016 		release_sock(sk);  in do_ipv6_getsockopt()
1025 		if (sk->sk_type != SOCK_STREAM)  in do_ipv6_getsockopt()
1032 		lock_sock(sk);  in do_ipv6_getsockopt()
1035 			ip6_datagram_recv_ctl(sk, &msg, skb);  in do_ipv6_getsockopt()
1036 		release_sock(sk);  in do_ipv6_getsockopt()
1042 				src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr : np->sticky_pktinfo.ipi6_addr;  in do_ipv6_getsockopt()
1058 				src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr :  in do_ipv6_getsockopt()
1081 		dst = __sk_dst_get(sk);  in do_ipv6_getsockopt()
1091 		val = sk->sk_ipv6only;  in do_ipv6_getsockopt()
1125 		lock_sock(sk);  in do_ipv6_getsockopt()
1126 		opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk));  in do_ipv6_getsockopt()
1127 		len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len);  in do_ipv6_getsockopt()
1128 		release_sock(sk);  in do_ipv6_getsockopt()
1179 		dst = __sk_dst_get(sk);  in do_ipv6_getsockopt()
1195 		val = inet_sk(sk)->transparent;  in do_ipv6_getsockopt()
1214 			dst = __sk_dst_get(sk);  in do_ipv6_getsockopt()
1221 			val = sock_net(sk)->ipv6.devconf_all->hop_limit;  in do_ipv6_getsockopt()
1268 		val = ipv6_flowlabel_opt_get(sk, &freq, flags);  in do_ipv6_getsockopt()
1321 int ipv6_getsockopt(struct sock *sk, int level, int optname,  in ipv6_getsockopt()  argument
1326 	if (level == SOL_IP && sk->sk_type != SOCK_RAW)  in ipv6_getsockopt()
1327 		return udp_prot.getsockopt(sk, level, optname, optval, optlen);  in ipv6_getsockopt()
1332 	err = do_ipv6_getsockopt(sk, level, optname, optval, optlen, 0);  in ipv6_getsockopt()
1341 		lock_sock(sk);  in ipv6_getsockopt()
1342 		err = nf_getsockopt(sk, PF_INET6, optname, optval,  in ipv6_getsockopt()
1344 		release_sock(sk);  in ipv6_getsockopt()
1354 int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,  in compat_ipv6_getsockopt()  argument
1359 	if (level == SOL_IP && sk->sk_type != SOCK_RAW) {  in compat_ipv6_getsockopt()
1361 			return udp_prot.compat_getsockopt(sk, level, optname,  in compat_ipv6_getsockopt()
1363 		return udp_prot.getsockopt(sk, level, optname, optval, optlen);  in compat_ipv6_getsockopt()
1370 		return compat_mc_getsockopt(sk, level, optname, optval, optlen,  in compat_ipv6_getsockopt()
1373 	err = do_ipv6_getsockopt(sk, level, optname, optval, optlen,  in compat_ipv6_getsockopt()
1383 		lock_sock(sk);  in compat_ipv6_getsockopt()
1384 		err = compat_nf_getsockopt(sk, PF_INET6,  in compat_ipv6_getsockopt()
1386 		release_sock(sk);  in compat_ipv6_getsockopt()