687 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
701 			if (copy_from_user(&mreq, optval, sizeof(mreq)))  in do_ip_setsockopt()
704 			memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
706 				if (copy_from_user(&mreq, optval,  in do_ip_setsockopt()
710 				if (copy_from_user(&mreq.imr_address, optval,  in do_ip_setsockopt()
716 		if (!mreq.imr_ifindex) {  in do_ip_setsockopt()
717 			if (mreq.imr_address.s_addr == htonl(INADDR_ANY)) {  in do_ip_setsockopt()
723 			dev = ip_dev_find(sock_net(sk), mreq.imr_address.s_addr);  in do_ip_setsockopt()
725 				mreq.imr_ifindex = dev->ifindex;  in do_ip_setsockopt()
727 			dev = dev_get_by_index(sock_net(sk), mreq.imr_ifindex);  in do_ip_setsockopt()
737 		    mreq.imr_ifindex != sk->sk_bound_dev_if)  in do_ip_setsockopt()
740 		inet->mc_index = mreq.imr_ifindex;  in do_ip_setsockopt()
741 		inet->mc_addr  = mreq.imr_address.s_addr;  in do_ip_setsockopt()
749 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
759 			if (copy_from_user(&mreq, optval, sizeof(mreq)))  in do_ip_setsockopt()
762 			memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
763 			if (copy_from_user(&mreq, optval, sizeof(struct ip_mreq)))  in do_ip_setsockopt()
768 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
770 			err = ip_mc_leave_group(sk, &mreq);  in do_ip_setsockopt()
830 			struct ip_mreqn mreq;  in do_ip_setsockopt()  local
832 			mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;  in do_ip_setsockopt()
833 			mreq.imr_address.s_addr = mreqs.imr_interface;  in do_ip_setsockopt()
834 			mreq.imr_ifindex = 0;  in do_ip_setsockopt()
835 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
852 		struct ip_mreqn mreq;  in do_ip_setsockopt()  local
862 		memset(&mreq, 0, sizeof(mreq));  in do_ip_setsockopt()
863 		mreq.imr_multiaddr = psin->sin_addr;  in do_ip_setsockopt()
864 		mreq.imr_ifindex = greq.gr_interface;  in do_ip_setsockopt()
867 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
869 			err = ip_mc_leave_group(sk, &mreq);  in do_ip_setsockopt()
906 			struct ip_mreqn mreq;  in do_ip_setsockopt()  local
909 			mreq.imr_multiaddr = psin->sin_addr;  in do_ip_setsockopt()
910 			mreq.imr_address.s_addr = 0;  in do_ip_setsockopt()
911 			mreq.imr_ifindex = greqs.gsr_interface;  in do_ip_setsockopt()
912 			err = ip_mc_join_group(sk, &mreq);  in do_ip_setsockopt()
915 			greqs.gsr_interface = mreq.imr_ifindex;  in do_ip_setsockopt()