807 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
821 			if (copy_from_user(&mreq, optval, sizeof(mreq)))  in do_ip_setsockopt()
824 			memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
826 				if (copy_from_user(&mreq, optval,  in do_ip_setsockopt()
830 				if (copy_from_user(&mreq.imr_address, optval,  in do_ip_setsockopt()
836 		if (!mreq.imr_ifindex) {  in do_ip_setsockopt()
837 			if (mreq.imr_address.s_addr == htonl(INADDR_ANY)) {  in do_ip_setsockopt()
843 			dev = ip_dev_find(sock_net(sk), mreq.imr_address.s_addr);  in do_ip_setsockopt()
845 				mreq.imr_ifindex = dev->ifindex;  in do_ip_setsockopt()
847 			dev = dev_get_by_index(sock_net(sk), mreq.imr_ifindex);  in do_ip_setsockopt()
857 		    mreq.imr_ifindex != sk->sk_bound_dev_if)  in do_ip_setsockopt()
860 		inet->mc_index = mreq.imr_ifindex;  in do_ip_setsockopt()
861 		inet->mc_addr  = mreq.imr_address.s_addr;  in do_ip_setsockopt()
869 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
879 			if (copy_from_user(&mreq, optval, sizeof(mreq)))  in do_ip_setsockopt()
882 			memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
883 			if (copy_from_user(&mreq, optval, sizeof(struct ip_mreq)))  in do_ip_setsockopt()
888 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
890 			err = ip_mc_leave_group(sk, &mreq);  in do_ip_setsockopt()
950 			struct ip_mreqn mreq;  in do_ip_setsockopt()  local
952 			mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;  in do_ip_setsockopt()
953 			mreq.imr_address.s_addr = mreqs.imr_interface;  in do_ip_setsockopt()
954 			mreq.imr_ifindex = 0;  in do_ip_setsockopt()
955 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
972 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
982 		memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
983 		mreq.imr_multiaddr = psin->sin_addr;  in do_ip_setsockopt()
984 		mreq.imr_ifindex = greq.gr_interface;  in do_ip_setsockopt()
987 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
989 			err = ip_mc_leave_group(sk, &mreq);  in do_ip_setsockopt()
1026 			struct ip_mreqn mreq;  in do_ip_setsockopt()  local
1029 			mreq.imr_multiaddr = psin->sin_addr;  in do_ip_setsockopt()
1030 			mreq.imr_address.s_addr = 0;  in do_ip_setsockopt()
1031 			mreq.imr_ifindex = greqs.gsr_interface;  in do_ip_setsockopt()
1032 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
1035 			greqs.gsr_interface = mreq.imr_ifindex;  in do_ip_setsockopt()