net/ipv4/ip_sockglue.c

750 		struct ip_mreqn mreq;
753 		mreq.imr_multiaddr = psin->sin_addr;
754 		mreq.imr_address.s_addr = 0;
755 		mreq.imr_ifindex = greqs.gsr_interface;
756 		err = ip_mc_join_group_ssm(sk, &mreq, MCAST_INCLUDE);
759 		greqs.gsr_interface = mreq.imr_ifindex;
848 	struct ip_mreqn mreq = { };
860 	mreq.imr_multiaddr = psin->sin_addr;
861 	mreq.imr_ifindex = greq.gr_interface;
863 		return ip_mc_join_group(sk, &mreq);
864 	return ip_mc_leave_group(sk, &mreq);
871 	struct ip_mreqn mreq = { };
882 	mreq.imr_multiaddr = psin->sin_addr;
883 	mreq.imr_ifindex = greq.gr_interface;
886 		return ip_mc_join_group(sk, &mreq);
887 	return ip_mc_leave_group(sk, &mreq);
1161 		struct ip_mreqn mreq;
1176 			if (copy_from_sockptr(&mreq, optval, sizeof(mreq)))
1179 			memset(&mreq, 0, sizeof(mreq));
1181 				if (copy_from_sockptr(&mreq, optval,
1185 				if (copy_from_sockptr(&mreq.imr_address, optval,
1191 		if (!mreq.imr_ifindex) {
1192 			if (mreq.imr_address.s_addr == htonl(INADDR_ANY)) {
1198 			dev = ip_dev_find(sock_net(sk), mreq.imr_address.s_addr);
1200 				mreq.imr_ifindex = dev->ifindex;
1202 			dev = dev_get_by_index(sock_net(sk), mreq.imr_ifindex);
1215 		    mreq.imr_ifindex != sk->sk_bound_dev_if &&
1219 		WRITE_ONCE(inet->mc_index, mreq.imr_ifindex);
1220 		WRITE_ONCE(inet->mc_addr, mreq.imr_address.s_addr);
1228 		struct ip_mreqn mreq;
1238 			if (copy_from_sockptr(&mreq, optval, sizeof(mreq)))
1241 			memset(&mreq, 0, sizeof(mreq));
1242 			if (copy_from_sockptr(&mreq, optval,
1248 			err = ip_mc_join_group(sk, &mreq);
1250 			err = ip_mc_leave_group(sk, &mreq);
1305 			struct ip_mreqn mreq;
1307 			mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;
1308 			mreq.imr_address.s_addr = mreqs.imr_interface;
1309 			mreq.imr_ifindex = 0;
1310 			err = ip_mc_join_group_ssm(sk, &mreq, MCAST_INCLUDE);