803 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
817 			if (copy_from_user(&mreq, optval, sizeof(mreq)))  in do_ip_setsockopt()
820 			memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
822 				if (copy_from_user(&mreq, optval,  in do_ip_setsockopt()
826 				if (copy_from_user(&mreq.imr_address, optval,  in do_ip_setsockopt()
832 		if (!mreq.imr_ifindex) {  in do_ip_setsockopt()
833 			if (mreq.imr_address.s_addr == htonl(INADDR_ANY)) {  in do_ip_setsockopt()
839 			dev = ip_dev_find(sock_net(sk), mreq.imr_address.s_addr);  in do_ip_setsockopt()
841 				mreq.imr_ifindex = dev->ifindex;  in do_ip_setsockopt()
843 			dev = dev_get_by_index(sock_net(sk), mreq.imr_ifindex);  in do_ip_setsockopt()
853 		    mreq.imr_ifindex != sk->sk_bound_dev_if)  in do_ip_setsockopt()
856 		inet->mc_index = mreq.imr_ifindex;  in do_ip_setsockopt()
857 		inet->mc_addr  = mreq.imr_address.s_addr;  in do_ip_setsockopt()
865 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
875 			if (copy_from_user(&mreq, optval, sizeof(mreq)))  in do_ip_setsockopt()
878 			memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
879 			if (copy_from_user(&mreq, optval, sizeof(struct ip_mreq)))  in do_ip_setsockopt()
884 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
886 			err = ip_mc_leave_group(sk, &mreq);  in do_ip_setsockopt()
946 			struct ip_mreqn mreq;  in do_ip_setsockopt()  local
948 			mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;  in do_ip_setsockopt()
949 			mreq.imr_address.s_addr = mreqs.imr_interface;  in do_ip_setsockopt()
950 			mreq.imr_ifindex = 0;  in do_ip_setsockopt()
951 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
968 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
978 		memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
979 		mreq.imr_multiaddr = psin->sin_addr;  in do_ip_setsockopt()
980 		mreq.imr_ifindex = greq.gr_interface;  in do_ip_setsockopt()
983 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
985 			err = ip_mc_leave_group(sk, &mreq);  in do_ip_setsockopt()
1022 			struct ip_mreqn mreq;  in do_ip_setsockopt()  local
1025 			mreq.imr_multiaddr = psin->sin_addr;  in do_ip_setsockopt()
1026 			mreq.imr_address.s_addr = 0;  in do_ip_setsockopt()
1027 			mreq.imr_ifindex = greqs.gsr_interface;  in do_ip_setsockopt()
1028 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
1031 			greqs.gsr_interface = mreq.imr_ifindex;  in do_ip_setsockopt()