| /** @file |
| The EFI UDPv6 (User Datagram Protocol version 6) Protocol Definition, which is built upon |
| the EFI IPv6 Protocol and provides simple packet-oriented services to transmit and receive |
| UDP packets. |
| |
| Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR> |
| SPDX-License-Identifier: BSD-2-Clause-Patent |
| |
| @par Revision Reference: |
| This Protocol is introduced in UEFI Specification 2.2 |
| |
| **/ |
| |
| #ifndef __EFI_UDP6_PROTOCOL_H__ |
| #define __EFI_UDP6_PROTOCOL_H__ |
| |
| #include <Protocol/Ip6.h> |
| |
| #define EFI_UDP6_SERVICE_BINDING_PROTOCOL_GUID \ |
| { \ |
| 0x66ed4721, 0x3c98, 0x4d3e, {0x81, 0xe3, 0xd0, 0x3d, 0xd3, 0x9a, 0x72, 0x54 } \ |
| } |
| |
| #define EFI_UDP6_PROTOCOL_GUID \ |
| { \ |
| 0x4f948815, 0xb4b9, 0x43cb, {0x8a, 0x33, 0x90, 0xe0, 0x60, 0xb3, 0x49, 0x55 } \ |
| } |
| |
| /// |
| /// EFI_UDP6_SERVICE_POINT is deprecated in the UEFI 2.4B and should not be used any more. |
| /// The definition in here is only present to provide backwards compatability. |
| /// |
| typedef struct { |
| /// |
| /// The EFI UDPv6 Protocol instance handle that is using this address/port pair. |
| /// |
| EFI_HANDLE InstanceHandle; |
| /// |
| /// The IPv6 address to which this instance of the EFI UDPv6 Protocol is bound. |
| /// Set to 0::/128, if this instance is used to listen all packets from any |
| /// source address. |
| /// |
| EFI_IPv6_ADDRESS LocalAddress; |
| /// |
| /// The port number in host byte order on which the service is listening. |
| /// |
| UINT16 LocalPort; |
| /// |
| /// The IPv6 address of the remote host. May be 0::/128 if it is not connected |
| /// to any remote host or connected with more than one remote host. |
| /// |
| EFI_IPv6_ADDRESS RemoteAddress; |
| /// |
| /// The port number in host byte order on which the remote host is |
| /// listening. Maybe zero if it is not connected to any remote host. |
| /// |
| UINT16 RemotePort; |
| } EFI_UDP6_SERVICE_POINT; |
| |
| /// |
| /// EFI_UDP6_VARIABLE_DATA is deprecated in the UEFI 2.4B and should not be used any more. |
| /// The definition in here is only present to provide backwards compatability. |
| /// |
| typedef struct { |
| /// |
| /// The handle of the driver that creates this entry. |
| /// |
| EFI_HANDLE DriverHandle; |
| /// |
| /// The number of address/port pairs that follow this data structure. |
| /// |
| UINT32 ServiceCount; |
| /// |
| /// List of address/port pairs that are currently in use. |
| /// |
| EFI_UDP6_SERVICE_POINT Services[1]; |
| } EFI_UDP6_VARIABLE_DATA; |
| |
| typedef struct _EFI_UDP6_PROTOCOL EFI_UDP6_PROTOCOL; |
| |
| /// |
| /// EFI_UDP6_FRAGMENT_DATA allows multiple receive or transmit buffers to be specified. |
| /// The purpose of this structure is to avoid copying the same packet multiple times. |
| /// |
| typedef struct { |
| UINT32 FragmentLength; ///< Length of the fragment data buffer. |
| VOID *FragmentBuffer; ///< Pointer to the fragment data buffer. |
| } EFI_UDP6_FRAGMENT_DATA; |
| |
| /// |
| /// The EFI_UDP6_SESSION_DATA is used to retrieve the settings when receiving packets or |
| /// to override the existing settings (only DestinationAddress and DestinationPort can |
| /// be overridden) of this EFI UDPv6 Protocol instance when sending packets. |
| /// |
| typedef struct { |
| /// |
| /// Address from which this packet is sent. This field should not be used when |
| /// sending packets. |
| /// |
| EFI_IPv6_ADDRESS SourceAddress; |
| /// |
| /// Port from which this packet is sent. It is in host byte order. This field should |
| /// not be used when sending packets. |
| /// |
| UINT16 SourcePort; |
| /// |
| /// Address to which this packet is sent. When sending packet, it'll be ignored |
| /// if it is zero. |
| /// |
| EFI_IPv6_ADDRESS DestinationAddress; |
| /// |
| /// Port to which this packet is sent. When sending packet, it'll be |
| /// ignored if it is zero. |
| /// |
| UINT16 DestinationPort; |
| } EFI_UDP6_SESSION_DATA; |
| |
| typedef struct { |
| /// |
| /// Set to TRUE to accept UDP packets that are sent to any address. |
| /// |
| BOOLEAN AcceptPromiscuous; |
| /// |
| /// Set to TRUE to accept UDP packets that are sent to any port. |
| /// |
| BOOLEAN AcceptAnyPort; |
| /// |
| /// Set to TRUE to allow this EFI UDPv6 Protocol child instance to open a port number |
| /// that is already being used by another EFI UDPv6 Protocol child instance. |
| /// |
| BOOLEAN AllowDuplicatePort; |
| /// |
| /// TrafficClass field in transmitted IPv6 packets. |
| /// |
| UINT8 TrafficClass; |
| /// |
| /// HopLimit field in transmitted IPv6 packets. |
| /// |
| UINT8 HopLimit; |
| /// |
| /// The receive timeout value (number of microseconds) to be associated with each |
| /// incoming packet. Zero means do not drop incoming packets. |
| /// |
| UINT32 ReceiveTimeout; |
| /// |
| /// The transmit timeout value (number of microseconds) to be associated with each |
| /// outgoing packet. Zero means do not drop outgoing packets. |
| /// |
| UINT32 TransmitTimeout; |
| /// |
| /// The station IP address that will be assigned to this EFI UDPv6 Protocol instance. |
| /// The EFI UDPv6 and EFI IPv6 Protocol drivers will only deliver incoming packets |
| /// whose destination matches this IP address exactly. Address 0::/128 is also accepted |
| /// as a special case. Under this situation, underlying IPv6 driver is responsible for |
| /// binding a source address to this EFI IPv6 protocol instance according to source |
| /// address selection algorithm. Only incoming packet from the selected source address |
| /// is delivered. This field can be set and changed only when the EFI IPv6 driver is |
| /// transitioning from the stopped to the started states. If no address is available |
| /// for selecting, the EFI IPv6 Protocol driver will use EFI_IP6_CONFIG_PROTOCOL to |
| /// retrieve the IPv6 address. |
| EFI_IPv6_ADDRESS StationAddress; |
| /// |
| /// The port number to which this EFI UDPv6 Protocol instance is bound. If a client |
| /// of the EFI UDPv6 Protocol does not care about the port number, set StationPort |
| /// to zero. The EFI UDPv6 Protocol driver will assign a random port number to transmitted |
| /// UDP packets. Ignored it if AcceptAnyPort is TRUE. |
| /// |
| UINT16 StationPort; |
| /// |
| /// The IP address of remote host to which this EFI UDPv6 Protocol instance is connecting. |
| /// If RemoteAddress is not 0::/128, this EFI UDPv6 Protocol instance will be connected to |
| /// RemoteAddress; i.e., outgoing packets of this EFI UDPv6 Protocol instance will be sent |
| /// to this address by default and only incoming packets from this address will be delivered |
| /// to client. Ignored for incoming filtering if AcceptPromiscuous is TRUE. |
| EFI_IPv6_ADDRESS RemoteAddress; |
| /// |
| /// The port number of the remote host to which this EFI UDPv6 Protocol instance is connecting. |
| /// If it is not zero, outgoing packets of this EFI UDPv6 Protocol instance will be sent to |
| /// this port number by default and only incoming packets from this port will be delivered |
| /// to client. Ignored if RemoteAddress is 0::/128 and ignored for incoming filtering if |
| /// AcceptPromiscuous is TRUE. |
| UINT16 RemotePort; |
| } EFI_UDP6_CONFIG_DATA; |
| |
| /// |
| /// The EFI UDPv6 Protocol client must fill this data structure before sending a packet. |
| /// The packet may contain multiple buffers that may be not in a continuous memory location. |
| /// |
| typedef struct { |
| /// |
| /// If not NULL, the data that is used to override the transmitting settings.Only the two |
| /// filed UdpSessionData.DestinationAddress and UdpSessionData.DestionPort can be used as |
| /// the transmitting setting filed. |
| /// |
| EFI_UDP6_SESSION_DATA *UdpSessionData; |
| /// |
| /// Sum of the fragment data length. Must not exceed the maximum UDP packet size. |
| /// |
| UINT32 DataLength; |
| /// |
| /// Number of fragments. |
| /// |
| UINT32 FragmentCount; |
| /// |
| /// Array of fragment descriptors. |
| /// |
| EFI_UDP6_FRAGMENT_DATA FragmentTable[1]; |
| } EFI_UDP6_TRANSMIT_DATA; |
| |
| /// |
| /// EFI_UDP6_RECEIVE_DATA is filled by the EFI UDPv6 Protocol driver when this EFI UDPv6 |
| /// Protocol instance receives an incoming packet. If there is a waiting token for incoming |
| /// packets, the CompletionToken.Packet.RxData field is updated to this incoming packet and |
| /// the CompletionToken.Event is signaled. The EFI UDPv6 Protocol client must signal the |
| /// RecycleSignal after processing the packet. |
| /// FragmentTable could contain multiple buffers that are not in the continuous memory locations. |
| /// The EFI UDPv6 Protocol client might need to combine two or more buffers in FragmentTable to |
| /// form their own protocol header. |
| /// |
| typedef struct { |
| /// |
| /// Time when the EFI UDPv6 Protocol accepted the packet. |
| /// |
| EFI_TIME TimeStamp; |
| /// |
| /// Indicates the event to signal when the received data has been processed. |
| /// |
| EFI_EVENT RecycleSignal; |
| /// |
| /// The UDP session data including SourceAddress, SourcePort, DestinationAddress, |
| /// and DestinationPort. |
| /// |
| EFI_UDP6_SESSION_DATA UdpSession; |
| /// |
| /// The sum of the fragment data length. |
| /// |
| UINT32 DataLength; |
| /// |
| /// Number of fragments. Maybe zero. |
| /// |
| UINT32 FragmentCount; |
| /// |
| /// Array of fragment descriptors. Maybe zero. |
| /// |
| EFI_UDP6_FRAGMENT_DATA FragmentTable[1]; |
| } EFI_UDP6_RECEIVE_DATA; |
| |
| /// |
| /// The EFI_UDP6_COMPLETION_TOKEN structures are used for both transmit and receive operations. |
| /// When used for transmitting, the Event and TxData fields must be filled in by the EFI UDPv6 |
| /// Protocol client. After the transmit operation completes, the Status field is updated by the |
| /// EFI UDPv6 Protocol and the Event is signaled. |
| /// When used for receiving, only the Event field must be filled in by the EFI UDPv6 Protocol |
| /// client. After a packet is received, RxData and Status are filled in by the EFI UDPv6 Protocol |
| /// and the Event is signaled. |
| /// |
| typedef struct { |
| /// |
| /// This Event will be signaled after the Status field is updated by the EFI UDPv6 Protocol |
| /// driver. The type of Event must be EVT_NOTIFY_SIGNAL. |
| /// |
| EFI_EVENT Event; |
| /// |
| /// Will be set to one of the following values: |
| /// - EFI_SUCCESS: The receive or transmit operation completed successfully. |
| /// - EFI_ABORTED: The receive or transmit was aborted. |
| /// - EFI_TIMEOUT: The transmit timeout expired. |
| /// - EFI_NETWORK_UNREACHABLE: The destination network is unreachable. RxData is set to |
| /// NULL in this situation. |
| /// - EFI_HOST_UNREACHABLE: The destination host is unreachable. RxData is set to NULL in |
| /// this situation. |
| /// - EFI_PROTOCOL_UNREACHABLE: The UDP protocol is unsupported in the remote system. |
| /// RxData is set to NULL in this situation. |
| /// - EFI_PORT_UNREACHABLE: No service is listening on the remote port. RxData is set to |
| /// NULL in this situation. |
| /// - EFI_ICMP_ERROR: Some other Internet Control Message Protocol (ICMP) error report was |
| /// received. For example, packets are being sent too fast for the destination to receive them |
| /// and the destination sent an ICMP source quench report. RxData is set to NULL in this situation. |
| /// - EFI_DEVICE_ERROR: An unexpected system or network error occurred. |
| /// - EFI_SECURITY_VIOLATION: The transmit or receive was failed because of IPsec policy check. |
| /// - EFI_NO_MEDIA: There was a media error. |
| /// |
| EFI_STATUS Status; |
| union { |
| /// |
| /// When this token is used for receiving, RxData is a pointer to EFI_UDP6_RECEIVE_DATA. |
| /// |
| EFI_UDP6_RECEIVE_DATA *RxData; |
| /// |
| /// When this token is used for transmitting, TxData is a pointer to EFI_UDP6_TRANSMIT_DATA. |
| /// |
| EFI_UDP6_TRANSMIT_DATA *TxData; |
| } Packet; |
| } EFI_UDP6_COMPLETION_TOKEN; |
| |
| /** |
| Read the current operational settings. |
| |
| The GetModeData() function copies the current operational settings of this EFI UDPv6 Protocol |
| instance into user-supplied buffers. This function is used optionally to retrieve the operational |
| mode data of underlying networks or drivers. |
| |
| @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance. |
| @param[out] Udp6ConfigData The buffer in which the current UDP configuration data is returned. |
| @param[out] Ip6ModeData The buffer in which the current EFI IPv6 Protocol mode data is returned. |
| @param[out] MnpConfigData The buffer in which the current managed network configuration data is |
| returned. |
| @param[out] SnpModeData The buffer in which the simple network mode data is returned. |
| |
| @retval EFI_SUCCESS The mode data was read. |
| @retval EFI_NOT_STARTED When Udp6ConfigData is queried, no configuration data is available |
| because this instance has not been started. |
| @retval EFI_INVALID_PARAMETER This is NULL. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_UDP6_GET_MODE_DATA)( |
| IN EFI_UDP6_PROTOCOL *This, |
| OUT EFI_UDP6_CONFIG_DATA *Udp6ConfigData OPTIONAL, |
| OUT EFI_IP6_MODE_DATA *Ip6ModeData OPTIONAL, |
| OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL, |
| OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL |
| ); |
| |
| /** |
| Initializes, changes, or resets the operational parameters for this instance of the EFI UDPv6 |
| Protocol. |
| |
| The Configure() function is used to do the following: |
| - Initialize and start this instance of the EFI UDPv6 Protocol. |
| - Change the filtering rules and operational parameters. |
| - Reset this instance of the EFI UDPv6 Protocol. |
| |
| Until these parameters are initialized, no network traffic can be sent or received by this instance. |
| This instance can be also reset by calling Configure() with UdpConfigData set to NULL. |
| Once reset, the receiving queue and transmitting queue are flushed and no traffic is allowed through |
| this instance. |
| |
| With different parameters in UdpConfigData, Configure() can be used to bind this instance to specified |
| port. |
| |
| @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance. |
| @param[in] UdpConfigData Pointer to the buffer contained the configuration data. |
| |
| @retval EFI_SUCCESS The configuration settings were 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 following conditions are TRUE: |
| - This is NULL. |
| - UdpConfigData.StationAddress neither zero nor one of the configured IP |
| addresses in the underlying IPv6 driver. |
| - UdpConfigData.RemoteAddress is not a valid unicast IPv6 address if it |
| is not zero. |
| @retval EFI_ALREADY_STARTED The EFI UDPv6 Protocol instance is already started/configured and must be |
| stopped/reset before it can be reconfigured. Only TrafficClass, HopLimit, |
| ReceiveTimeout, and TransmitTimeout can be reconfigured without stopping |
| the current instance of the EFI UDPv6 Protocol. |
| @retval EFI_ACCESS_DENIED UdpConfigData.AllowDuplicatePort is FALSE and UdpConfigData.StationPort |
| is already used by other instance. |
| @retval EFI_OUT_OF_RESOURCES The EFI UDPv6 Protocol driver cannot allocate memory for this EFI UDPv6 |
| Protocol instance. |
| @retval EFI_DEVICE_ERROR An unexpected network or system error occurred and this instance was not |
| opened. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_UDP6_CONFIGURE)( |
| IN EFI_UDP6_PROTOCOL *This, |
| IN EFI_UDP6_CONFIG_DATA *UdpConfigData OPTIONAL |
| ); |
| |
| /** |
| Joins and leaves multicast groups. |
| |
| The Groups() function is used to join or leave one or more multicast group. |
| If the JoinFlag is FALSE and the MulticastAddress is NULL, then all currently joined groups are left. |
| |
| @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance. |
| @param[in] JoinFlag Set to TRUE to join a multicast group. Set to FALSE to leave one |
| or all multicast groups. |
| @param[in] MulticastAddress Pointer to multicast group address to join or leave. |
| |
| @retval EFI_SUCCESS The operation completed successfully. |
| @retval EFI_NOT_STARTED The EFI UDPv6 Protocol instance has not been started. |
| @retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group. |
| @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: |
| - This is NULL. |
| - JoinFlag is TRUE and MulticastAddress is NULL. |
| - JoinFlag is TRUE and *MulticastAddress is not a valid multicast address. |
| @retval EFI_ALREADY_STARTED The group address is already in the group table (when JoinFlag is TRUE). |
| @retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is FALSE). |
| @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_UDP6_GROUPS)( |
| IN EFI_UDP6_PROTOCOL *This, |
| IN BOOLEAN JoinFlag, |
| IN EFI_IPv6_ADDRESS *MulticastAddress OPTIONAL |
| ); |
| |
| /** |
| Queues outgoing data packets into the transmit queue. |
| |
| The Transmit() function places a sending request to this instance of the EFI UDPv6 Protocol, |
| alongside the transmit data that was filled by the user. Whenever the packet in the token is |
| sent out or some errors occur, the Token.Event will be signaled and Token.Status is updated. |
| Providing a proper notification function and context for the event will enable the user to |
| receive the notification and transmitting status. |
| |
| @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance. |
| @param[in] Token Pointer to the completion token that will be placed into the |
| transmit queue. |
| |
| @retval EFI_SUCCESS The data has been queued for transmission. |
| @retval EFI_NOT_STARTED This EFI UDPv6 Protocol instance has not been started. |
| @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.Event is NULL. |
| - Token.Packet.TxData is NULL. |
| - Token.Packet.TxData.FragmentCount is zero. |
| - Token.Packet.TxData.DataLength is not equal to the sum of fragment |
| lengths. |
| - One or more of the Token.Packet.TxData.FragmentTable[].FragmentLength |
| fields is zero. |
| - One or more of the Token.Packet.TxData.FragmentTable[].FragmentBuffer |
| fields is NULL. |
| - Token.Packet.TxData.UdpSessionData.DestinationAddress is not zero |
| and is not valid unicast Ipv6 address if UdpSessionData is not NULL. |
| - Token.Packet.TxData.UdpSessionData is NULL and this instance's |
| UdpConfigData.RemoteAddress is unspecified. |
| - Token.Packet.TxData.UdpSessionData.DestinationAddress is non-zero |
| when DestinationAddress is configured as non-zero when doing Configure() |
| for this EFI Udp6 protocol instance. |
| - Token.Packet.TxData.UdpSesionData.DestinationAddress is zero when |
| DestinationAddress is unspecified when doing Configure() for this |
| EFI Udp6 protocol instance. |
| @retval EFI_ACCESS_DENIED The transmit completion token with the same Token.Event was already |
| in the transmit queue. |
| @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. |
| @retval EFI_NOT_FOUND There is no route to the destination network or address. |
| @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP packet size. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_UDP6_TRANSMIT)( |
| IN EFI_UDP6_PROTOCOL *This, |
| IN EFI_UDP6_COMPLETION_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 fill in the Token.Event field in the completion token, and this field cannot be |
| NULL. When the receive operation completes, the EFI UDPv6 Protocol driver updates the Token.Status |
| and Token.Packet.RxData fields and the Token.Event is signaled. |
| 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_UDP6_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 UDPv6 Protocol instance has not been started. |
| @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 is TRUE: |
| - This is NULL. |
| - Token is NULL. |
| - Token.Event is NULL. |
| @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 UDPv6 Protocol |
| instance has been reset to startup defaults. |
| @retval EFI_ACCESS_DENIED A receive completion token with the same Token.Event was already in |
| the receive queue. |
| @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_UDP6_RECEIVE)( |
| IN EFI_UDP6_PROTOCOL *This, |
| IN EFI_UDP6_COMPLETION_TOKEN *Token |
| ); |
| |
| /** |
| Aborts an asynchronous transmit or receive request. |
| |
| The Cancel() function is used to abort a pending transmit or receive request. If the token is in the |
| transmit or receive request queues, after calling this function, 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, this function will not signal the |
| token and EFI_NOT_FOUND is returned. |
| |
| @param[in] This Pointer to the EFI_UDP6_PROTOCOL instance. |
| @param[in] Token Pointer to a token that has been issued by EFI_UDP6_PROTOCOL.Transmit() |
| or EFI_UDP6_PROTOCOL.Receive().If NULL, all pending tokens are aborted. |
| |
| @retval EFI_SUCCESS The asynchronous I/O request was aborted and Token.Event was signaled. |
| When Token is NULL, all pending requests are aborted and their events |
| are signaled. |
| @retval EFI_INVALID_PARAMETER This is NULL. |
| @retval EFI_NOT_STARTED This instance has not been started. |
| @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was not found in |
| the transmit or receive queue. It has either completed or was not issued |
| by Transmit() and Receive(). |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_UDP6_CANCEL)( |
| IN EFI_UDP6_PROTOCOL *This, |
| IN EFI_UDP6_COMPLETION_TOKEN *Token OPTIONAL |
| ); |
| |
| /** |
| Polls for incoming data packets and processes outgoing data packets. |
| |
| The Poll() function can be used by network drivers and applications to increase the rate that data |
| packets are moved between the communications device and the transmit and receive queues. |
| In some systems, the periodic timer event in the managed network driver may not poll the underlying |
| communications device fast enough to transmit and/or receive all data packets without missing incoming |
| packets or dropping outgoing packets. Drivers and applications that are experiencing packet loss should |
| try calling the Poll() function more often. |
| |
| @param[in] This Pointer to the EFI_UDP6_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_TIMEOUT Data was dropped out of the transmit and/or receive queue. |
| Consider increasing the polling rate. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_UDP6_POLL)( |
| IN EFI_UDP6_PROTOCOL *This |
| ); |
| |
| /// |
| /// The EFI_UDP6_PROTOCOL defines an EFI UDPv6 Protocol session that can be used by any network drivers, |
| /// applications, or daemons to transmit or receive UDP packets. This protocol instance can either be |
| /// bound to a specified port as a service or connected to some remote peer as an active client. |
| /// Each instance has its own settings, such as group table, that are independent from each other. |
| /// |
| struct _EFI_UDP6_PROTOCOL { |
| EFI_UDP6_GET_MODE_DATA GetModeData; |
| EFI_UDP6_CONFIGURE Configure; |
| EFI_UDP6_GROUPS Groups; |
| EFI_UDP6_TRANSMIT Transmit; |
| EFI_UDP6_RECEIVE Receive; |
| EFI_UDP6_CANCEL Cancel; |
| EFI_UDP6_POLL Poll; |
| }; |
| |
| extern EFI_GUID gEfiUdp6ServiceBindingProtocolGuid; |
| extern EFI_GUID gEfiUdp6ProtocolGuid; |
| |
| #endif |