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865 lines
38 KiB
865 lines
38 KiB
/** @file
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EFI TCPv6(Transmission Control Protocol version 6) Protocol Definition
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The EFI TCPv6 Service Binding Protocol is used to locate EFI TCPv6 Protocol drivers to create
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and destroy child of the driver to communicate with other host using TCP protocol.
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The EFI TCPv6 Protocol provides services to send and receive data stream.
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Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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@par Revision Reference:
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This Protocol is introduced in UEFI Specification 2.2
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**/
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#ifndef __EFI_TCP6_PROTOCOL_H__
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#define __EFI_TCP6_PROTOCOL_H__
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#include <Protocol/ManagedNetwork.h>
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#include <Protocol/Ip6.h>
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#define EFI_TCP6_SERVICE_BINDING_PROTOCOL_GUID \
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{ \
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0xec20eb79, 0x6c1a, 0x4664, {0x9a, 0x0d, 0xd2, 0xe4, 0xcc, 0x16, 0xd6, 0x64 } \
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}
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#define EFI_TCP6_PROTOCOL_GUID \
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{ \
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0x46e44855, 0xbd60, 0x4ab7, {0xab, 0x0d, 0xa6, 0x79, 0xb9, 0x44, 0x7d, 0x77 } \
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}
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typedef struct _EFI_TCP6_PROTOCOL EFI_TCP6_PROTOCOL;
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///
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/// EFI_TCP6_SERVICE_POINT is deprecated in the UEFI 2.4B and should not be used any more.
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/// The definition in here is only present to provide backwards compatability.
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///
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typedef struct {
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///
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/// The EFI TCPv6 Protocol instance handle that is using this
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/// address/port pair.
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///
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EFI_HANDLE InstanceHandle;
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///
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/// The local IPv6 address to which this TCP instance is bound. Set
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/// to 0::/128, if this TCP instance is configured to listen on all
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/// available source addresses.
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///
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EFI_IPv6_ADDRESS LocalAddress;
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///
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/// The local port number in host byte order.
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///
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UINT16 LocalPort;
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///
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/// The remote IPv6 address. It may be 0::/128 if this TCP instance is
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/// not connected to any remote host.
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///
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EFI_IPv6_ADDRESS RemoteAddress;
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///
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/// The remote port number in host byte order. It may be zero if this
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/// TCP instance is not connected to any remote host.
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///
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UINT16 RemotePort;
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} EFI_TCP6_SERVICE_POINT;
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///
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/// EFI_TCP6_VARIABLE_DATA is deprecated in the UEFI 2.4B and should not be used any more.
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/// The definition in here is only present to provide backwards compatability.
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///
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typedef struct {
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EFI_HANDLE DriverHandle; ///< The handle of the driver that creates this entry.
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UINT32 ServiceCount; ///< The number of address/port pairs following this data structure.
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EFI_TCP6_SERVICE_POINT Services[1]; ///< List of address/port pairs that are currently in use.
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} EFI_TCP6_VARIABLE_DATA;
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///
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/// EFI_TCP6_ACCESS_POINT
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///
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typedef struct {
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///
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/// The local IP address assigned to this TCP instance. The EFI
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/// TCPv6 driver will only deliver incoming packets whose
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/// destination addresses exactly match the IP address. Set to zero to
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/// let the underlying IPv6 driver choose a source address. If not zero
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/// it must be one of the configured IP addresses in the underlying
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/// IPv6 driver.
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///
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EFI_IPv6_ADDRESS StationAddress;
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///
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/// The local port number to which this EFI TCPv6 Protocol instance
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/// is bound. If the instance doesn't care the local port number, set
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/// StationPort to zero to use an ephemeral port.
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///
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UINT16 StationPort;
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///
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/// The remote IP address to which this EFI TCPv6 Protocol instance
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/// is connected. If ActiveFlag is FALSE (i.e. a passive TCPv6
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/// instance), the instance only accepts connections from the
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/// RemoteAddress. If ActiveFlag is TRUE the instance will
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/// connect to the RemoteAddress, i.e., outgoing segments will be
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/// sent to this address and only segments from this address will be
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/// delivered to the application. When ActiveFlag is FALSE, it
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/// can be set to zero and means that incoming connection requests
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/// from any address will be accepted.
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///
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EFI_IPv6_ADDRESS RemoteAddress;
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///
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/// The remote port to which this EFI TCPv6 Protocol instance
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/// connects or from which connection request will be accepted by
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/// this EFI TCPv6 Protocol instance. If ActiveFlag is FALSE it
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/// can be zero and means that incoming connection request from
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/// any port will be accepted. Its value can not be zero when
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/// ActiveFlag is TRUE.
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///
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UINT16 RemotePort;
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///
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/// Set it to TRUE to initiate an active open. Set it to FALSE to
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/// initiate a passive open to act as a server.
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///
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BOOLEAN ActiveFlag;
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} EFI_TCP6_ACCESS_POINT;
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///
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/// EFI_TCP6_OPTION
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///
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typedef struct {
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///
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/// The size of the TCP receive buffer.
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///
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UINT32 ReceiveBufferSize;
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///
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/// The size of the TCP send buffer.
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///
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UINT32 SendBufferSize;
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///
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/// The length of incoming connect request queue for a passive
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/// instance. When set to zero, the value is implementation specific.
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///
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UINT32 MaxSynBackLog;
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///
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/// The maximum seconds a TCP instance will wait for before a TCP
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/// connection established. When set to zero, the value is
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/// implementation specific.
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///
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UINT32 ConnectionTimeout;
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///
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///The number of times TCP will attempt to retransmit a packet on
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///an established connection. When set to zero, the value is
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///implementation specific.
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///
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UINT32 DataRetries;
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///
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/// How many seconds to wait in the FIN_WAIT_2 states for a final
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/// FIN flag before the TCP instance is closed. This timeout is in
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/// effective only if the application has called Close() to
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/// disconnect the connection completely. It is also called
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/// FIN_WAIT_2 timer in other implementations. When set to zero,
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/// it should be disabled because the FIN_WAIT_2 timer itself is
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/// against the standard. The default value is 60.
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///
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UINT32 FinTimeout;
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///
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/// How many seconds to wait in TIME_WAIT state before the TCP
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/// instance is closed. The timer is disabled completely to provide a
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/// method to close the TCP connection quickly if it is set to zero. It
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/// is against the related RFC documents.
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///
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UINT32 TimeWaitTimeout;
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///
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/// The maximum number of TCP keep-alive probes to send before
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/// giving up and resetting the connection if no response from the
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/// other end. Set to zero to disable keep-alive probe.
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///
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UINT32 KeepAliveProbes;
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///
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/// The number of seconds a connection needs to be idle before TCP
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/// sends out periodical keep-alive probes. When set to zero, the
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/// value is implementation specific. It should be ignored if keep-
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/// alive probe is disabled.
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///
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UINT32 KeepAliveTime;
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///
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/// The number of seconds between TCP keep-alive probes after the
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/// periodical keep-alive probe if no response. When set to zero, the
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/// value is implementation specific. It should be ignored if keep-
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/// alive probe is disabled.
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///
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UINT32 KeepAliveInterval;
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///
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/// Set it to TRUE to enable the Nagle algorithm as defined in
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/// RFC896. Set it to FALSE to disable it.
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///
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BOOLEAN EnableNagle;
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///
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/// Set it to TRUE to enable TCP timestamps option as defined in
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/// RFC1323. Set to FALSE to disable it.
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///
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BOOLEAN EnableTimeStamp;
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///
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/// Set it to TRUE to enable TCP window scale option as defined in
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/// RFC1323. Set it to FALSE to disable it.
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///
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BOOLEAN EnableWindowScaling;
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///
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/// Set it to TRUE to enable selective acknowledge mechanism
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/// described in RFC 2018. Set it to FALSE to disable it.
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/// Implementation that supports SACK can optionally support
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/// DSAK as defined in RFC 2883.
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///
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BOOLEAN EnableSelectiveAck;
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///
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/// Set it to TRUE to enable path MTU discovery as defined in
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/// RFC 1191. Set to FALSE to disable it.
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///
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BOOLEAN EnablePathMtuDiscovery;
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} EFI_TCP6_OPTION;
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///
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/// EFI_TCP6_CONFIG_DATA
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///
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typedef struct {
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///
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/// TrafficClass field in transmitted IPv6 packets.
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///
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UINT8 TrafficClass;
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///
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/// HopLimit field in transmitted IPv6 packets.
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///
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UINT8 HopLimit;
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///
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/// Used to specify TCP communication end settings for a TCP instance.
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///
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EFI_TCP6_ACCESS_POINT AccessPoint;
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///
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/// Used to configure the advance TCP option for a connection. If set
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/// to NULL, implementation specific options for TCP connection will be used.
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///
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EFI_TCP6_OPTION *ControlOption;
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} EFI_TCP6_CONFIG_DATA;
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///
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/// EFI_TCP6_CONNECTION_STATE
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///
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typedef enum {
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Tcp6StateClosed = 0,
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Tcp6StateListen = 1,
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Tcp6StateSynSent = 2,
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Tcp6StateSynReceived = 3,
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Tcp6StateEstablished = 4,
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Tcp6StateFinWait1 = 5,
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Tcp6StateFinWait2 = 6,
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Tcp6StateClosing = 7,
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Tcp6StateTimeWait = 8,
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Tcp6StateCloseWait = 9,
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Tcp6StateLastAck = 10
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} EFI_TCP6_CONNECTION_STATE;
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///
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/// EFI_TCP6_COMPLETION_TOKEN
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/// is used as a common header for various asynchronous tokens.
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///
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typedef struct {
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///
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/// The Event to signal after request is finished and Status field is
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/// updated by the EFI TCPv6 Protocol driver.
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///
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EFI_EVENT Event;
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///
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/// The result of the completed operation.
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///
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EFI_STATUS Status;
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} EFI_TCP6_COMPLETION_TOKEN;
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///
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/// EFI_TCP6_CONNECTION_TOKEN
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/// will be set if the active open succeeds or an unexpected
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/// error happens.
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///
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typedef struct {
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///
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/// The Status in the CompletionToken will be set to one of
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/// the following values if the active open succeeds or an unexpected
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/// error happens:
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/// EFI_SUCCESS: The active open succeeds and the instance's
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/// state is Tcp6StateEstablished.
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/// EFI_CONNECTION_RESET: The connect fails because the connection is reset
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/// either by instance itself or the communication peer.
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/// EFI_CONNECTION_REFUSED: The receiving or transmission operation fails because this
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/// connection is refused.
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/// EFI_ABORTED: The active open is aborted.
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/// EFI_TIMEOUT: The connection establishment timer expires and
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/// no more specific information is available.
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/// EFI_NETWORK_UNREACHABLE: The active open fails because
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/// an ICMP network unreachable error is received.
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/// EFI_HOST_UNREACHABLE: The active open fails because an
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/// ICMP host unreachable error is received.
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/// EFI_PROTOCOL_UNREACHABLE: The active open fails
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/// because an ICMP protocol unreachable error is received.
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/// EFI_PORT_UNREACHABLE: The connection establishment
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/// timer times out and an ICMP port unreachable error is received.
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/// EFI_ICMP_ERROR: The connection establishment timer times
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/// out and some other ICMP error is received.
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/// EFI_DEVICE_ERROR: An unexpected system or network error occurred.
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/// EFI_SECURITY_VIOLATION: The active open was failed because of IPSec policy check.
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/// EFI_NO_MEDIA: There was a media error.
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///
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EFI_TCP6_COMPLETION_TOKEN CompletionToken;
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} EFI_TCP6_CONNECTION_TOKEN;
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///
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/// EFI_TCP6_LISTEN_TOKEN
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/// returns when list operation finishes.
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///
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typedef struct {
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///
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/// The Status in CompletionToken will be set to the
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/// following value if accept finishes:
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/// EFI_SUCCESS: A remote peer has successfully established a
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/// connection to this instance. A new TCP instance has also been
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/// created for the connection.
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/// EFI_CONNECTION_RESET: The accept fails because the connection is reset either
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/// by instance itself or communication peer.
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/// EFI_ABORTED: The accept request has been aborted.
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/// EFI_SECURITY_VIOLATION: The accept operation was failed because of IPSec policy check.
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///
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EFI_TCP6_COMPLETION_TOKEN CompletionToken;
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EFI_HANDLE NewChildHandle;
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} EFI_TCP6_LISTEN_TOKEN;
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///
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/// EFI_TCP6_FRAGMENT_DATA
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/// allows multiple receive or transmit buffers to be specified. The
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/// purpose of this structure is to provide scattered read and write.
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///
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typedef struct {
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UINT32 FragmentLength; ///< Length of data buffer in the fragment.
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VOID *FragmentBuffer; ///< Pointer to the data buffer in the fragment.
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} EFI_TCP6_FRAGMENT_DATA;
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///
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/// EFI_TCP6_RECEIVE_DATA
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/// When TCPv6 driver wants to deliver received data to the application,
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/// it will pick up the first queued receiving token, update its
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/// Token->Packet.RxData then signal the Token->CompletionToken.Event.
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///
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typedef struct {
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///
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/// Whether the data is urgent. When this flag is set, the instance is in
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/// urgent mode.
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///
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BOOLEAN UrgentFlag;
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///
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/// When calling Receive() function, it is the byte counts of all
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/// Fragmentbuffer in FragmentTable allocated by user.
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/// When the token is signaled by TCPv6 driver it is the length of
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/// received data in the fragments.
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///
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UINT32 DataLength;
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///
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/// Number of fragments.
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///
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UINT32 FragmentCount;
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///
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/// An array of fragment descriptors.
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///
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EFI_TCP6_FRAGMENT_DATA FragmentTable[1];
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} EFI_TCP6_RECEIVE_DATA;
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///
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/// EFI_TCP6_TRANSMIT_DATA
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/// The EFI TCPv6 Protocol user must fill this data structure before sending a packet.
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/// The packet may contain multiple buffers in non-continuous memory locations.
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///
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typedef struct {
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///
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/// Push If TRUE, data must be transmitted promptly, and the PUSH bit in
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/// the last TCP segment created will be set. If FALSE, data
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/// transmission may be delayed to combine with data from
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/// subsequent Transmit()s for efficiency.
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///
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BOOLEAN Push;
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///
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/// The data in the fragment table are urgent and urgent point is in
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/// effect if TRUE. Otherwise those data are NOT considered urgent.
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///
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BOOLEAN Urgent;
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///
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/// Length of the data in the fragments.
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///
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UINT32 DataLength;
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///
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/// Number of fragments.
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///
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UINT32 FragmentCount;
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///
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/// An array of fragment descriptors.
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///
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EFI_TCP6_FRAGMENT_DATA FragmentTable[1];
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} EFI_TCP6_TRANSMIT_DATA;
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|
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///
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/// EFI_TCP6_IO_TOKEN
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/// returns When transmission finishes or meets any unexpected error.
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///
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typedef struct {
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///
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/// When transmission finishes or meets any unexpected error it will
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/// be set to one of the following values:
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/// EFI_SUCCESS: The receiving or transmission operation
|
|
/// completes successfully.
|
|
/// EFI_CONNECTION_FIN: The receiving operation fails because the communication peer
|
|
/// has closed the connection and there is no more data in the
|
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/// receive buffer of the instance.
|
|
/// EFI_CONNECTION_RESET: The receiving or transmission operation fails
|
|
/// because this connection is reset either by instance
|
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/// itself or the communication peer.
|
|
/// EFI_ABORTED: The receiving or transmission is aborted.
|
|
/// EFI_TIMEOUT: The transmission timer expires and no more
|
|
/// specific information is available.
|
|
/// EFI_NETWORK_UNREACHABLE: The transmission fails
|
|
/// because an ICMP network unreachable error is received.
|
|
/// EFI_HOST_UNREACHABLE: The transmission fails because an
|
|
/// ICMP host unreachable error is received.
|
|
/// EFI_PROTOCOL_UNREACHABLE: The transmission fails
|
|
/// because an ICMP protocol unreachable error is received.
|
|
/// EFI_PORT_UNREACHABLE: The transmission fails and an
|
|
/// ICMP port unreachable error is received.
|
|
/// EFI_ICMP_ERROR: The transmission fails and some other
|
|
/// ICMP error is received.
|
|
/// EFI_DEVICE_ERROR: An unexpected system or network error occurs.
|
|
/// EFI_SECURITY_VIOLATION: The receiving or transmission
|
|
/// operation was failed because of IPSec policy check
|
|
/// EFI_NO_MEDIA: There was a media error.
|
|
///
|
|
EFI_TCP6_COMPLETION_TOKEN CompletionToken;
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|
union {
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///
|
|
/// When this token is used for receiving, RxData is a pointer to
|
|
/// EFI_TCP6_RECEIVE_DATA.
|
|
///
|
|
EFI_TCP6_RECEIVE_DATA *RxData;
|
|
///
|
|
/// When this token is used for transmitting, TxData is a pointer to
|
|
/// EFI_TCP6_TRANSMIT_DATA.
|
|
///
|
|
EFI_TCP6_TRANSMIT_DATA *TxData;
|
|
} Packet;
|
|
} EFI_TCP6_IO_TOKEN;
|
|
|
|
///
|
|
/// EFI_TCP6_CLOSE_TOKEN
|
|
/// returns when close operation finishes.
|
|
///
|
|
typedef struct {
|
|
///
|
|
/// When close finishes or meets any unexpected error it will be set
|
|
/// to one of the following values:
|
|
/// EFI_SUCCESS: The close operation completes successfully.
|
|
/// EFI_ABORTED: User called configure with NULL without close stopping.
|
|
/// EFI_SECURITY_VIOLATION: The close operation was failed because of IPSec policy check.
|
|
///
|
|
EFI_TCP6_COMPLETION_TOKEN CompletionToken;
|
|
///
|
|
/// Abort the TCP connection on close instead of the standard TCP
|
|
/// close process when it is set to TRUE. This option can be used to
|
|
/// satisfy a fast disconnect.
|
|
///
|
|
BOOLEAN AbortOnClose;
|
|
} EFI_TCP6_CLOSE_TOKEN;
|
|
|
|
/**
|
|
Get the current operational status.
|
|
|
|
The GetModeData() function copies the current operational settings of this EFI TCPv6
|
|
Protocol instance into user-supplied buffers. This function can also be used to retrieve
|
|
the operational setting of underlying drivers such as IPv6, MNP, or SNP.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[out] Tcp6State The buffer in which the current TCP state is returned.
|
|
@param[out] Tcp6ConfigData The buffer in which the current TCP configuration is returned.
|
|
@param[out] Ip6ModeData The buffer in which the current IPv6 configuration data used by
|
|
the TCP instance is returned.
|
|
@param[out] MnpConfigData The buffer in which the current MNP configuration data used
|
|
indirectly by the TCP instance is returned.
|
|
@param[out] SnpModeData The buffer in which the current SNP mode data used indirectly by
|
|
the TCP instance is returned.
|
|
|
|
@retval EFI_SUCCESS The mode data was read.
|
|
@retval EFI_NOT_STARTED No configuration data is available because this instance hasn't
|
|
been started.
|
|
@retval EFI_INVALID_PARAMETER This is NULL.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_GET_MODE_DATA)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
OUT EFI_TCP6_CONNECTION_STATE *Tcp6State OPTIONAL,
|
|
OUT EFI_TCP6_CONFIG_DATA *Tcp6ConfigData OPTIONAL,
|
|
OUT EFI_IP6_MODE_DATA *Ip6ModeData OPTIONAL,
|
|
OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,
|
|
OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Initialize or brutally reset the operational parameters for this EFI TCPv6 instance.
|
|
|
|
The Configure() function does the following:
|
|
- Initialize this TCP instance, i.e., initialize the communication end settings and
|
|
specify active open or passive open for an instance.
|
|
- Reset this TCP instance brutally, i.e., cancel all pending asynchronous tokens, flush
|
|
transmission and receiving buffer directly without informing the communication peer.
|
|
|
|
No other TCPv6 Protocol operation except Poll() can be executed by this instance until
|
|
it is configured properly. For an active TCP instance, after a proper configuration it
|
|
may call Connect() to initiates the three-way handshake. For a passive TCP instance,
|
|
its state will transit to Tcp6StateListen after configuration, and Accept() may be
|
|
called to listen the incoming TCP connection requests. If Tcp6ConfigData is set to NULL,
|
|
the instance is reset. Resetting process will be done brutally, the state machine will
|
|
be set to Tcp6StateClosed directly, the receive queue and transmit queue will be flushed,
|
|
and no traffic is allowed through this instance.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[in] Tcp6ConfigData Pointer to the configure data to configure the instance.
|
|
If Tcp6ConfigData is set to NULL, the instance is reset.
|
|
|
|
@retval EFI_SUCCESS The operational settings are set, changed, or reset
|
|
successfully.
|
|
@retval EFI_NO_MAPPING The underlying IPv6 driver was responsible for choosing a source
|
|
address for this instance, but no source address was available for
|
|
use.
|
|
@retval EFI_INVALID_PARAMETER One or more of the following conditions are TRUE:
|
|
- This is NULL.
|
|
- Tcp6ConfigData->AccessPoint.StationAddress is neither zero nor
|
|
one of the configured IP addresses in the underlying IPv6 driver.
|
|
- Tcp6ConfigData->AccessPoint.RemoteAddress isn't a valid unicast
|
|
IPv6 address.
|
|
- Tcp6ConfigData->AccessPoint.RemoteAddress is zero or
|
|
Tcp6ConfigData->AccessPoint.RemotePort is zero when
|
|
Tcp6ConfigData->AccessPoint.ActiveFlag is TRUE.
|
|
- A same access point has been configured in other TCP
|
|
instance properly.
|
|
@retval EFI_ACCESS_DENIED Configuring TCP instance when it is configured without
|
|
calling Configure() with NULL to reset it.
|
|
@retval EFI_UNSUPPORTED One or more of the control options are not supported in
|
|
the implementation.
|
|
@retval EFI_OUT_OF_RESOURCES Could not allocate enough system resources when
|
|
executing Configure().
|
|
@retval EFI_DEVICE_ERROR An unexpected network or system error occurred.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_CONFIGURE)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
IN EFI_TCP6_CONFIG_DATA *Tcp6ConfigData OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Initiate a nonblocking TCP connection request for an active TCP instance.
|
|
|
|
The Connect() function will initiate an active open to the remote peer configured
|
|
in current TCP instance if it is configured active. If the connection succeeds or
|
|
fails due to any error, the ConnectionToken->CompletionToken.Event will be signaled
|
|
and ConnectionToken->CompletionToken.Status will be updated accordingly. This
|
|
function can only be called for the TCP instance in Tcp6StateClosed state. The
|
|
instance will transfer into Tcp6StateSynSent if the function returns EFI_SUCCESS.
|
|
If TCP three-way handshake succeeds, its state will become Tcp6StateEstablished,
|
|
otherwise, the state will return to Tcp6StateClosed.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[in] ConnectionToken Pointer to the connection token to return when the TCP three
|
|
way handshake finishes.
|
|
|
|
@retval EFI_SUCCESS The connection request is successfully initiated and the state of
|
|
this TCP instance has been changed to Tcp6StateSynSent.
|
|
@retval EFI_NOT_STARTED This EFI TCPv6 Protocol instance has not been configured.
|
|
@retval EFI_ACCESS_DENIED One or more of the following conditions are TRUE:
|
|
- This instance is not configured as an active one.
|
|
- This instance is not in Tcp6StateClosed state.
|
|
@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
|
|
- This is NULL.
|
|
- ConnectionToken is NULL.
|
|
- ConnectionToken->CompletionToken.Event is NULL.
|
|
@retval EFI_OUT_OF_RESOURCES The driver can't allocate enough resource to initiate the active open.
|
|
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_CONNECT)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
IN EFI_TCP6_CONNECTION_TOKEN *ConnectionToken
|
|
);
|
|
|
|
/**
|
|
Listen on the passive instance to accept an incoming connection request. This is a
|
|
nonblocking operation.
|
|
|
|
The Accept() function initiates an asynchronous accept request to wait for an incoming
|
|
connection on the passive TCP instance. If a remote peer successfully establishes a
|
|
connection with this instance, a new TCP instance will be created and its handle will
|
|
be returned in ListenToken->NewChildHandle. The newly created instance is configured
|
|
by inheriting the passive instance's configuration and is ready for use upon return.
|
|
The new instance is in the Tcp6StateEstablished state.
|
|
|
|
The ListenToken->CompletionToken.Event will be signaled when a new connection is
|
|
accepted, user aborts the listen or connection is reset.
|
|
|
|
This function only can be called when current TCP instance is in Tcp6StateListen state.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[in] ListenToken Pointer to the listen token to return when operation finishes.
|
|
|
|
|
|
@retval EFI_SUCCESS The listen token has been queued successfully.
|
|
@retval EFI_NOT_STARTED This EFI TCPv6 Protocol instance has not been configured.
|
|
@retval EFI_ACCESS_DENIED One or more of the following are TRUE:
|
|
- This instance is not a passive instance.
|
|
- This instance is not in Tcp6StateListen state.
|
|
- The same listen token has already existed in the listen
|
|
token queue of this TCP instance.
|
|
@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
|
|
- This is NULL.
|
|
- ListenToken is NULL.
|
|
- ListentToken->CompletionToken.Event is NULL.
|
|
@retval EFI_OUT_OF_RESOURCES Could not allocate enough resource to finish the operation.
|
|
@retval EFI_DEVICE_ERROR Any unexpected and not belonged to above category error.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_ACCEPT)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
IN EFI_TCP6_LISTEN_TOKEN *ListenToken
|
|
);
|
|
|
|
/**
|
|
Queues outgoing data into the transmit queue.
|
|
|
|
The Transmit() function queues a sending request to this TCP instance along with the
|
|
user data. The status of the token is updated and the event in the token will be
|
|
signaled once the data is sent out or some error occurs.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[in] Token Pointer to the completion token to queue to the transmit queue.
|
|
|
|
@retval EFI_SUCCESS The data has been queued for transmission.
|
|
@retval EFI_NOT_STARTED This EFI TCPv6 Protocol instance has not been configured.
|
|
@retval EFI_NO_MAPPING The underlying IPv6 driver was responsible for choosing a
|
|
source address for this instance, but no source address was
|
|
available for use.
|
|
@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
|
|
- This is NULL.
|
|
- Token is NULL.
|
|
- Token->CompletionToken.Event is NULL.
|
|
- Token->Packet.TxData is NULL.
|
|
- Token->Packet.FragmentCount is zero.
|
|
- Token->Packet.DataLength is not equal to the sum of fragment lengths.
|
|
@retval EFI_ACCESS_DENIED One or more of the following conditions are TRUE:
|
|
- A transmit completion token with the same Token->
|
|
CompletionToken.Event was already in the
|
|
transmission queue.
|
|
- The current instance is in Tcp6StateClosed state.
|
|
- The current instance is a passive one and it is in
|
|
Tcp6StateListen state.
|
|
- User has called Close() to disconnect this connection.
|
|
@retval EFI_NOT_READY The completion token could not be queued because the
|
|
transmit queue is full.
|
|
@retval EFI_OUT_OF_RESOURCES Could not queue the transmit data because of resource
|
|
shortage.
|
|
@retval EFI_NETWORK_UNREACHABLE There is no route to the destination network or address.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_TRANSMIT)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
IN EFI_TCP6_IO_TOKEN *Token
|
|
);
|
|
|
|
/**
|
|
Places an asynchronous receive request into the receiving queue.
|
|
|
|
The Receive() function places a completion token into the receive packet queue. This
|
|
function is always asynchronous. The caller must allocate the Token->CompletionToken.Event
|
|
and the FragmentBuffer used to receive data. The caller also must fill the DataLength which
|
|
represents the whole length of all FragmentBuffer. When the receive operation completes, the
|
|
EFI TCPv6 Protocol driver updates the Token->CompletionToken.Status and Token->Packet.RxData
|
|
fields and the Token->CompletionToken.Event is signaled. If got data the data and its length
|
|
will be copied into the FragmentTable, at the same time the full length of received data will
|
|
be recorded in the DataLength fields. Providing a proper notification function and context
|
|
for the event will enable the user to receive the notification and receiving status. That
|
|
notification function is guaranteed to not be re-entered.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[in] Token Pointer to a token that is associated with the receive data
|
|
descriptor.
|
|
|
|
@retval EFI_SUCCESS The receive completion token was cached.
|
|
@retval EFI_NOT_STARTED This EFI TCPv6 Protocol instance has not been configured.
|
|
@retval EFI_NO_MAPPING The underlying IPv6 driver was responsible for choosing a source
|
|
address for this instance, but no source address was available for use.
|
|
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
|
|
- This is NULL.
|
|
- Token is NULL.
|
|
- Token->CompletionToken.Event is NULL.
|
|
- Token->Packet.RxData is NULL.
|
|
- Token->Packet.RxData->DataLength is 0.
|
|
- The Token->Packet.RxData->DataLength is not the
|
|
sum of all FragmentBuffer length in FragmentTable.
|
|
@retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of
|
|
system resources (usually memory).
|
|
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
|
|
The EFI TCPv6 Protocol instance has been reset to startup defaults.
|
|
@retval EFI_ACCESS_DENIED One or more of the following conditions is TRUE:
|
|
- A receive completion token with the same Token->CompletionToken.Event
|
|
was already in the receive queue.
|
|
- The current instance is in Tcp6StateClosed state.
|
|
- The current instance is a passive one and it is in
|
|
Tcp6StateListen state.
|
|
- User has called Close() to disconnect this connection.
|
|
@retval EFI_CONNECTION_FIN The communication peer has closed the connection and there is no
|
|
any buffered data in the receive buffer of this instance
|
|
@retval EFI_NOT_READY The receive request could not be queued because the receive queue is full.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_RECEIVE)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
IN EFI_TCP6_IO_TOKEN *Token
|
|
);
|
|
|
|
/**
|
|
Disconnecting a TCP connection gracefully or reset a TCP connection. This function is a
|
|
nonblocking operation.
|
|
|
|
Initiate an asynchronous close token to TCP driver. After Close() is called, any buffered
|
|
transmission data will be sent by TCP driver and the current instance will have a graceful close
|
|
working flow described as RFC 793 if AbortOnClose is set to FALSE, otherwise, a rest packet
|
|
will be sent by TCP driver to fast disconnect this connection. When the close operation completes
|
|
successfully the TCP instance is in Tcp6StateClosed state, all pending asynchronous
|
|
operations are signaled and any buffers used for TCP network traffic are flushed.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[in] CloseToken Pointer to the close token to return when operation finishes.
|
|
|
|
@retval EFI_SUCCESS The Close() is called successfully.
|
|
@retval EFI_NOT_STARTED This EFI TCPv6 Protocol instance has not been configured.
|
|
@retval EFI_ACCESS_DENIED One or more of the following are TRUE:
|
|
- CloseToken or CloseToken->CompletionToken.Event is already in use.
|
|
- Previous Close() call on this instance has not finished.
|
|
@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
|
|
- This is NULL.
|
|
- CloseToken is NULL.
|
|
- CloseToken->CompletionToken.Event is NULL.
|
|
@retval EFI_OUT_OF_RESOURCES Could not allocate enough resource to finish the operation.
|
|
@retval EFI_DEVICE_ERROR Any unexpected and not belonged to above category error.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_CLOSE)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
IN EFI_TCP6_CLOSE_TOKEN *CloseToken
|
|
);
|
|
|
|
/**
|
|
Abort an asynchronous connection, listen, transmission or receive request.
|
|
|
|
The Cancel() function aborts a pending connection, listen, transmit or
|
|
receive request.
|
|
|
|
If Token is not NULL and the token is in the connection, listen, transmission
|
|
or receive queue when it is being cancelled, its Token->Status will be set
|
|
to EFI_ABORTED and then Token->Event will be signaled.
|
|
|
|
If the token is not in one of the queues, which usually means that the
|
|
asynchronous operation has completed, EFI_NOT_FOUND is returned.
|
|
|
|
If Token is NULL all asynchronous token issued by Connect(), Accept(),
|
|
Transmit() and Receive() will be aborted.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
@param[in] Token Pointer to a token that has been issued by
|
|
EFI_TCP6_PROTOCOL.Connect(),
|
|
EFI_TCP6_PROTOCOL.Accept(),
|
|
EFI_TCP6_PROTOCOL.Transmit() or
|
|
EFI_TCP6_PROTOCOL.Receive(). If NULL, all pending
|
|
tokens issued by above four functions will be aborted. Type
|
|
EFI_TCP6_COMPLETION_TOKEN is defined in
|
|
EFI_TCP_PROTOCOL.Connect().
|
|
|
|
@retval EFI_SUCCESS The asynchronous I/O request is aborted and Token->Event
|
|
is signaled.
|
|
@retval EFI_INVALID_PARAMETER This is NULL.
|
|
@retval EFI_NOT_STARTED This instance hasn't been configured.
|
|
@retval EFI_NOT_FOUND The asynchronous I/O request isn't found in the transmission or
|
|
receive queue. It has either completed or wasn't issued by
|
|
Transmit() and Receive().
|
|
@retval EFI_UNSUPPORTED The implementation does not support this function.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_CANCEL)(
|
|
IN EFI_TCP6_PROTOCOL *This,
|
|
IN EFI_TCP6_COMPLETION_TOKEN *Token OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Poll to receive incoming data and transmit outgoing segments.
|
|
|
|
The Poll() function increases the rate that data is moved between the network
|
|
and application and can be called when the TCP instance is created successfully.
|
|
Its use is optional.
|
|
|
|
@param[in] This Pointer to the EFI_TCP6_PROTOCOL instance.
|
|
|
|
@retval EFI_SUCCESS Incoming or outgoing data was processed.
|
|
@retval EFI_INVALID_PARAMETER This is NULL.
|
|
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
|
|
@retval EFI_NOT_READY No incoming or outgoing data is processed.
|
|
@retval EFI_TIMEOUT Data was dropped out of the transmission or receive queue.
|
|
Consider increasing the polling rate.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_TCP6_POLL)(
|
|
IN EFI_TCP6_PROTOCOL *This
|
|
);
|
|
|
|
///
|
|
/// EFI_TCP6_PROTOCOL
|
|
/// defines the EFI TCPv6 Protocol child to be used by any network drivers or
|
|
/// applications to send or receive data stream. It can either listen on a
|
|
/// specified port as a service or actively connect to remote peer as a client.
|
|
/// Each instance has its own independent settings.
|
|
///
|
|
struct _EFI_TCP6_PROTOCOL {
|
|
EFI_TCP6_GET_MODE_DATA GetModeData;
|
|
EFI_TCP6_CONFIGURE Configure;
|
|
EFI_TCP6_CONNECT Connect;
|
|
EFI_TCP6_ACCEPT Accept;
|
|
EFI_TCP6_TRANSMIT Transmit;
|
|
EFI_TCP6_RECEIVE Receive;
|
|
EFI_TCP6_CLOSE Close;
|
|
EFI_TCP6_CANCEL Cancel;
|
|
EFI_TCP6_POLL Poll;
|
|
};
|
|
|
|
extern EFI_GUID gEfiTcp6ServiceBindingProtocolGuid;
|
|
extern EFI_GUID gEfiTcp6ProtocolGuid;
|
|
|
|
#endif
|
|
|