134 /* Transport used for host->guest communication */
136 /* Transport used for guest->host communication */
138 /* Transport used for DGRAM communication */
140 /* Transport used for local communication */
337 void vsock_for_each_connected_socket(struct vsock_transport *transport,  in vsock_for_each_connected_socket()  argument
348 			if (vsk->transport != transport)  in vsock_for_each_connected_socket()
414 	if (!vsk->transport)  in vsock_deassign_transport()
417 	vsk->transport->destruct(vsk);  in vsock_deassign_transport()
418 	module_put(vsk->transport->module);  in vsock_deassign_transport()
419 	vsk->transport = NULL;  in vsock_deassign_transport()
422 /* Assign a transport to a socket and call the .init transport callback.
427  * The vsk->remote_addr is used to decide which transport to use:
429  *    g2h is not loaded, will use local transport;
431  *    includes VMADDR_FLAG_TO_HOST flag value, will use guest->host transport;
432  *  - remote CID > VMADDR_CID_HOST will use host->guest transport;
474 	if (vsk->transport) {  in vsock_assign_transport()
475 		if (vsk->transport == new_transport)  in vsock_assign_transport()
478 		/* transport->release() must be called with sock lock acquired.  in vsock_assign_transport()
482 		 * any transport.  in vsock_assign_transport()
484 		vsk->transport->release(vsk);  in vsock_assign_transport()
488 	/* We increase the module refcnt to prevent the transport unloading  in vsock_assign_transport()
508 	vsk->transport = new_transport;  in vsock_assign_transport()
567 	if (!vsk->transport)  in vsock_send_shutdown()
570 	return vsk->transport->shutdown(vsk, mode);  in vsock_send_shutdown()
681 	return vsk->transport->dgram_bind(vsk, addr);  in __vsock_bind_dgram()
809 		if (vsk->transport)  in __vsock_release()
810 			vsk->transport->release(vsk);  in __vsock_release()
865 	return vsk->transport->stream_has_data(vsk);  in vsock_stream_has_data()
874 		return vsk->transport->seqpacket_has_data(vsk);  in vsock_connectible_has_data()
881 	return vsk->transport->stream_has_space(vsk);  in vsock_stream_has_space()
1062 		const struct vsock_transport *transport;  in vsock_poll()  local
1066 		transport = vsk->transport;  in vsock_poll()
1076 		if (transport && transport->stream_is_active(vsk) &&  in vsock_poll()
1080 			int ret = transport->notify_poll_in(  in vsock_poll()
1101 		if (transport && sk->sk_state == TCP_ESTABLISHED) {  in vsock_poll()
1104 				int ret = transport->notify_poll_out(  in vsock_poll()
1142 	const struct vsock_transport *transport;  in vsock_dgram_sendmsg()  local
1154 	transport = vsk->transport;  in vsock_dgram_sendmsg()
1172 			remote_addr->svm_cid = transport->get_local_cid();  in vsock_dgram_sendmsg()
1182 			remote_addr->svm_cid = transport->get_local_cid();  in vsock_dgram_sendmsg()
1196 	if (!transport->dgram_allow(remote_addr->svm_cid,  in vsock_dgram_sendmsg()
1202 	err = transport->dgram_enqueue(vsk, remote_addr, msg, len);  in vsock_dgram_sendmsg()
1237 	if (!vsk->transport->dgram_allow(remote_addr->svm_cid,  in vsock_dgram_connect()
1256 	return vsk->transport->dgram_dequeue(vsk, msg, len, flags);  in vsock_dgram_recvmsg()
1280 	const struct vsock_transport *transport = vsk->transport;  in vsock_transport_cancel_pkt()  local
1282 	if (!transport || !transport->cancel_pkt)  in vsock_transport_cancel_pkt()
1285 	return transport->cancel_pkt(vsk);  in vsock_transport_cancel_pkt()
1316 	const struct vsock_transport *transport;  in vsock_connect()  local
1361 		transport = vsk->transport;  in vsock_connect()
1366 		if (!transport ||  in vsock_connect()
1367 		    !transport->stream_allow(remote_addr->svm_cid,  in vsock_connect()
1379 		err = transport->connect(vsk);  in vsock_connect()
1576 				     const struct vsock_transport *transport,  in vsock_update_buffer_size()  argument
1586 	    transport && transport->notify_buffer_size)  in vsock_update_buffer_size()
1587 		transport->notify_buffer_size(vsk, &val);  in vsock_update_buffer_size()
1601 	const struct vsock_transport *transport;  in vsock_connectible_setsockopt()  local
1625 	transport = vsk->transport;  in vsock_connectible_setsockopt()
1630 		vsock_update_buffer_size(vsk, transport, val);  in vsock_connectible_setsockopt()
1636 		vsock_update_buffer_size(vsk, transport, vsk->buffer_size);  in vsock_connectible_setsockopt()
1642 		vsock_update_buffer_size(vsk, transport, vsk->buffer_size);  in vsock_connectible_setsockopt()
1746 	const struct vsock_transport *transport;  in vsock_connectible_sendmsg()  local
1763 	transport = vsk->transport;  in vsock_connectible_sendmsg()
1780 	if (!transport || sk->sk_state != TCP_ESTABLISHED ||  in vsock_connectible_sendmsg()
1794 	err = transport->notify_send_init(vsk, &send_data);  in vsock_connectible_sendmsg()
1814 			err = transport->notify_send_pre_block(vsk, &send_data);  in vsock_connectible_sendmsg()
1848 		err = transport->notify_send_pre_enqueue(vsk, &send_data);  in vsock_connectible_sendmsg()
1859 			written = transport->seqpacket_enqueue(vsk,  in vsock_connectible_sendmsg()
1862 			written = transport->stream_enqueue(vsk,  in vsock_connectible_sendmsg()
1872 		err = transport->notify_send_post_enqueue(  in vsock_connectible_sendmsg()
1899 	const struct vsock_transport *transport;  in vsock_connectible_wait_data()  local
1906 	transport = vsk->transport;  in vsock_connectible_wait_data()
1927 			err = transport->notify_recv_pre_block(vsk, target, recv_data);  in vsock_connectible_wait_data()
1950 	/* Internal transport error when checking for available  in vsock_connectible_wait_data()
1964 	const struct vsock_transport *transport;  in __vsock_stream_recvmsg()  local
1974 	transport = vsk->transport;  in __vsock_stream_recvmsg()
1983 	if (target >= transport->stream_rcvhiwat(vsk)) {  in __vsock_stream_recvmsg()
1990 	err = transport->notify_recv_init(vsk, target, &recv_data);  in __vsock_stream_recvmsg()
2003 		err = transport->notify_recv_pre_dequeue(vsk, target,  in __vsock_stream_recvmsg()
2008 		read = transport->stream_dequeue(vsk, msg, len - copied, flags);  in __vsock_stream_recvmsg()
2016 		err = transport->notify_recv_post_dequeue(vsk, target, read,  in __vsock_stream_recvmsg()
2042 	const struct vsock_transport *transport;  in __vsock_seqpacket_recvmsg()  local
2050 	transport = vsk->transport;  in __vsock_seqpacket_recvmsg()
2058 	msg_len = transport->seqpacket_dequeue(vsk, msg, flags);  in __vsock_seqpacket_recvmsg()
2095 	const struct vsock_transport *transport;  in vsock_connectible_recvmsg()  local
2104 	transport = vsk->transport;  in vsock_connectible_recvmsg()
2106 	if (!transport || sk->sk_state != TCP_ESTABLISHED) {  in vsock_connectible_recvmsg()
2154 	const struct vsock_transport *transport;  in vsock_set_rcvlowat()  local
2162 	transport = vsk->transport;  in vsock_set_rcvlowat()
2164 	if (transport && transport->set_rcvlowat)  in vsock_set_rcvlowat()
2165 		return transport->set_rcvlowat(vsk, val);  in vsock_set_rcvlowat()
2370 	return vsk->transport;  in vsock_core_get_transport()