1d1f950002362305fcd4c30f108ef7b76679f5843yshang/** @file 24ca9b6c4e7dbbcf94f21b54f41f761cefc6b1086lgao UDP4 Service Binding Protocol as defined in UEFI specification. 3842f5579c7e2a313f56c576e4c5150f7f4793079AJFISH 44ca9b6c4e7dbbcf94f21b54f41f761cefc6b1086lgao The EFI UDPv4 Protocol provides simple packet-oriented services 54ca9b6c4e7dbbcf94f21b54f41f761cefc6b1086lgao to transmit and receive UDP packets. 64ca9b6c4e7dbbcf94f21b54f41f761cefc6b1086lgao 7d551cc64cdf1f943744294819220b78a60b10822Fu SiyuanCopyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> 8af2dc6a70b9380d702bd0720cdb029d630c505e3myronporterThis program and the accompanying materials are licensed and made available under 9af2dc6a70b9380d702bd0720cdb029d630c505e3myronporterthe terms and conditions of the BSD License that accompanies this distribution. 10af2dc6a70b9380d702bd0720cdb029d630c505e3myronporterThe full text of the license may be found at 11af2dc6a70b9380d702bd0720cdb029d630c505e3myronporterhttp://opensource.org/licenses/bsd-license.php. 12af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter 13af2dc6a70b9380d702bd0720cdb029d630c505e3myronporterTHE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14af2dc6a70b9380d702bd0720cdb029d630c505e3myronporterWITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 155899caf003c444820082f35098b68c678457b6bcvanjeff 165899caf003c444820082f35098b68c678457b6bcvanjeff @par Revision Reference: 17af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter This Protocol is introduced in UEFI Specification 2.0. 18d1f950002362305fcd4c30f108ef7b76679f5843yshang 19d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 20d1f950002362305fcd4c30f108ef7b76679f5843yshang 21d1f950002362305fcd4c30f108ef7b76679f5843yshang#ifndef __EFI_UDP4_PROTOCOL_H__ 22d1f950002362305fcd4c30f108ef7b76679f5843yshang#define __EFI_UDP4_PROTOCOL_H__ 23d1f950002362305fcd4c30f108ef7b76679f5843yshang 24d1f950002362305fcd4c30f108ef7b76679f5843yshang#include <Protocol/Ip4.h> 25d1f950002362305fcd4c30f108ef7b76679f5843yshang// 26d1f950002362305fcd4c30f108ef7b76679f5843yshang//GUID definitions 27d1f950002362305fcd4c30f108ef7b76679f5843yshang// 28d1f950002362305fcd4c30f108ef7b76679f5843yshang#define EFI_UDP4_SERVICE_BINDING_PROTOCOL_GUID \ 29d1f950002362305fcd4c30f108ef7b76679f5843yshang { \ 30d1f950002362305fcd4c30f108ef7b76679f5843yshang 0x83f01464, 0x99bd, 0x45e5, {0xb3, 0x83, 0xaf, 0x63, 0x05, 0xd8, 0xe9, 0xe6 } \ 31d1f950002362305fcd4c30f108ef7b76679f5843yshang } 32d1f950002362305fcd4c30f108ef7b76679f5843yshang 33d1f950002362305fcd4c30f108ef7b76679f5843yshang#define EFI_UDP4_PROTOCOL_GUID \ 34d1f950002362305fcd4c30f108ef7b76679f5843yshang { \ 35d1f950002362305fcd4c30f108ef7b76679f5843yshang 0x3ad9df29, 0x4501, 0x478d, {0xb1, 0xf8, 0x7f, 0x7f, 0xe7, 0x0e, 0x50, 0xf3 } \ 36d1f950002362305fcd4c30f108ef7b76679f5843yshang } 37d1f950002362305fcd4c30f108ef7b76679f5843yshang 38d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct _EFI_UDP4_PROTOCOL EFI_UDP4_PROTOCOL; 39d1f950002362305fcd4c30f108ef7b76679f5843yshang 40d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// 41d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// EFI_UDP4_SERVICE_POINT is deprecated in the UEFI 2.4B and should not be used any more. 42d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// The definition in here is only present to provide backwards compatability. 43d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// 44d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 45d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_HANDLE InstanceHandle; 46d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS LocalAddress; 47d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT16 LocalPort; 48d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS RemoteAddress; 49d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT16 RemotePort; 50d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_SERVICE_POINT; 51d1f950002362305fcd4c30f108ef7b76679f5843yshang 52d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// 53d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// EFI_UDP4_VARIABLE_DATA is deprecated in the UEFI 2.4B and should not be used any more. 54d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// The definition in here is only present to provide backwards compatability. 55d551cc64cdf1f943744294819220b78a60b10822Fu Siyuan/// 56d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 57d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_HANDLE DriverHandle; 58d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 ServiceCount; 59d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_SERVICE_POINT Services[1]; 60d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_VARIABLE_DATA; 61d1f950002362305fcd4c30f108ef7b76679f5843yshang 62d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 63d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 FragmentLength; 64d1f950002362305fcd4c30f108ef7b76679f5843yshang VOID *FragmentBuffer; 65d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_FRAGMENT_DATA; 66d1f950002362305fcd4c30f108ef7b76679f5843yshang 67d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 68d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS SourceAddress; 69d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT16 SourcePort; 70d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS DestinationAddress; 71d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT16 DestinationPort; 72d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_SESSION_DATA; 73d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 74d1f950002362305fcd4c30f108ef7b76679f5843yshang // 75d1f950002362305fcd4c30f108ef7b76679f5843yshang // Receiving Filters 76d1f950002362305fcd4c30f108ef7b76679f5843yshang // 77d1f950002362305fcd4c30f108ef7b76679f5843yshang BOOLEAN AcceptBroadcast; 78d1f950002362305fcd4c30f108ef7b76679f5843yshang BOOLEAN AcceptPromiscuous; 79d1f950002362305fcd4c30f108ef7b76679f5843yshang BOOLEAN AcceptAnyPort; 80d1f950002362305fcd4c30f108ef7b76679f5843yshang BOOLEAN AllowDuplicatePort; 81d1f950002362305fcd4c30f108ef7b76679f5843yshang // 82d1f950002362305fcd4c30f108ef7b76679f5843yshang // I/O parameters 83d1f950002362305fcd4c30f108ef7b76679f5843yshang // 84d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT8 TypeOfService; 85d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT8 TimeToLive; 86d1f950002362305fcd4c30f108ef7b76679f5843yshang BOOLEAN DoNotFragment; 87d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 ReceiveTimeout; 88d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 TransmitTimeout; 89d1f950002362305fcd4c30f108ef7b76679f5843yshang // 90d1f950002362305fcd4c30f108ef7b76679f5843yshang // Access Point 91d1f950002362305fcd4c30f108ef7b76679f5843yshang // 92d1f950002362305fcd4c30f108ef7b76679f5843yshang BOOLEAN UseDefaultAddress; 93d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS StationAddress; 94d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS SubnetMask; 95d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT16 StationPort; 96d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS RemoteAddress; 97d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT16 RemotePort; 98d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_CONFIG_DATA; 99d1f950002362305fcd4c30f108ef7b76679f5843yshang 100d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 101d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_SESSION_DATA *UdpSessionData; //OPTIONAL 102d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_IPv4_ADDRESS *GatewayAddress; //OPTIONAL 103d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 DataLength; 104d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 FragmentCount; 105d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_FRAGMENT_DATA FragmentTable[1]; 106d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_TRANSMIT_DATA; 107d1f950002362305fcd4c30f108ef7b76679f5843yshang 108d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 109d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_TIME TimeStamp; 110d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_EVENT RecycleSignal; 111d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_SESSION_DATA UdpSession; 112d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 DataLength; 113d1f950002362305fcd4c30f108ef7b76679f5843yshang UINT32 FragmentCount; 114d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_FRAGMENT_DATA FragmentTable[1]; 115d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_RECEIVE_DATA; 116d1f950002362305fcd4c30f108ef7b76679f5843yshang 117d1f950002362305fcd4c30f108ef7b76679f5843yshang 118d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef struct { 119d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_EVENT Event; 120d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_STATUS Status; 121d1f950002362305fcd4c30f108ef7b76679f5843yshang union { 122d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_RECEIVE_DATA *RxData; 123d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_TRANSMIT_DATA *TxData; 124d1f950002362305fcd4c30f108ef7b76679f5843yshang } Packet; 125d1f950002362305fcd4c30f108ef7b76679f5843yshang} EFI_UDP4_COMPLETION_TOKEN; 126d1f950002362305fcd4c30f108ef7b76679f5843yshang 127d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 128d1f950002362305fcd4c30f108ef7b76679f5843yshang Reads the current operational settings. 129d1f950002362305fcd4c30f108ef7b76679f5843yshang 13030c99a724cc3fda9ee853157e07af72335c3f7e3jgong The GetModeData() function copies the current operational settings of this EFI 13130c99a724cc3fda9ee853157e07af72335c3f7e3jgong UDPv4 Protocol instance into user-supplied buffers. This function is used 13230c99a724cc3fda9ee853157e07af72335c3f7e3jgong optionally to retrieve the operational mode data of underlying networks or 13330c99a724cc3fda9ee853157e07af72335c3f7e3jgong drivers. 13430c99a724cc3fda9ee853157e07af72335c3f7e3jgong 135af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 136af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param Udp4ConfigData The pointer to the buffer to receive the current configuration data. 137af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param Ip4ModeData The pointer to the EFI IPv4 Protocol mode data structure. 138af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param MnpConfigData The pointer to the managed network configuration data structure. 139af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param SnpModeData The pointer to the simple network mode data structure. 140d1f950002362305fcd4c30f108ef7b76679f5843yshang 141d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS The mode data was read. 142d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_STARTED When Udp4ConfigData is queried, no configuration data is 143d1f950002362305fcd4c30f108ef7b76679f5843yshang available because this instance has not been started. 144d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_INVALID_PARAMETER This is NULL. 145d1f950002362305fcd4c30f108ef7b76679f5843yshang 146d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 147d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 148d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 1498b13229b469f05ec22d76098b052bd6e943feceeklu(EFIAPI *EFI_UDP4_GET_MODE_DATA)( 150d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This, 151d1f950002362305fcd4c30f108ef7b76679f5843yshang OUT EFI_UDP4_CONFIG_DATA *Udp4ConfigData OPTIONAL, 152d1f950002362305fcd4c30f108ef7b76679f5843yshang OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL, 153d1f950002362305fcd4c30f108ef7b76679f5843yshang OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL, 154d1f950002362305fcd4c30f108ef7b76679f5843yshang OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL 155ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 156d1f950002362305fcd4c30f108ef7b76679f5843yshang 157d1f950002362305fcd4c30f108ef7b76679f5843yshang 158d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 159d1f950002362305fcd4c30f108ef7b76679f5843yshang Initializes, changes, or resets the operational parameters for this instance of the EFI UDPv4 160d1f950002362305fcd4c30f108ef7b76679f5843yshang Protocol. 16130c99a724cc3fda9ee853157e07af72335c3f7e3jgong 16230c99a724cc3fda9ee853157e07af72335c3f7e3jgong The Configure() function is used to do the following: 16330c99a724cc3fda9ee853157e07af72335c3f7e3jgong * Initialize and start this instance of the EFI UDPv4 Protocol. 16430c99a724cc3fda9ee853157e07af72335c3f7e3jgong * Change the filtering rules and operational parameters. 16530c99a724cc3fda9ee853157e07af72335c3f7e3jgong * Reset this instance of the EFI UDPv4 Protocol. 16630c99a724cc3fda9ee853157e07af72335c3f7e3jgong Until these parameters are initialized, no network traffic can be sent or 16730c99a724cc3fda9ee853157e07af72335c3f7e3jgong received by this instance. This instance can be also reset by calling Configure() 16830c99a724cc3fda9ee853157e07af72335c3f7e3jgong with UdpConfigData set to NULL. Once reset, the receiving queue and transmitting 16930c99a724cc3fda9ee853157e07af72335c3f7e3jgong queue are flushed and no traffic is allowed through this instance. 17030c99a724cc3fda9ee853157e07af72335c3f7e3jgong With different parameters in UdpConfigData, Configure() can be used to bind 17130c99a724cc3fda9ee853157e07af72335c3f7e3jgong this instance to specified port. 172d1f950002362305fcd4c30f108ef7b76679f5843yshang 173af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 174af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param Udp4ConfigData The pointer to the buffer to receive the current configuration data. 175d1f950002362305fcd4c30f108ef7b76679f5843yshang 176d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS The configuration settings were set, changed, or reset successfully. 177d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, 178d1f950002362305fcd4c30f108ef7b76679f5843yshang RARP, etc.) is not finished yet. 179a89fa50ccf7a29405e3d24c49625dbd70cdba9famyronporter @retval EFI_INVALID_PARAMETER This is NULL. 180a89fa50ccf7a29405e3d24c49625dbd70cdba9famyronporter @retval EFI_INVALID_PARAMETER UdpConfigData.StationAddress is not a valid unicast IPv4 address. 181852d89119109fd27d58278988a0060a13559e894qhuang @retval EFI_INVALID_PARAMETER UdpConfigData.SubnetMask is not a valid IPv4 address mask. The subnet 182852d89119109fd27d58278988a0060a13559e894qhuang mask must be contiguous. 183852d89119109fd27d58278988a0060a13559e894qhuang @retval EFI_INVALID_PARAMETER UdpConfigData.RemoteAddress is not a valid unicast IPv4 address if it 184852d89119109fd27d58278988a0060a13559e894qhuang is not zero. 185d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_ALREADY_STARTED The EFI UDPv4 Protocol instance is already started/configured 186d1f950002362305fcd4c30f108ef7b76679f5843yshang and must be stopped/reset before it can be reconfigured. 187d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_ACCESS_DENIED UdpConfigData. AllowDuplicatePort is FALSE 188d1f950002362305fcd4c30f108ef7b76679f5843yshang and UdpConfigData.StationPort is already used by 189d1f950002362305fcd4c30f108ef7b76679f5843yshang other instance. 190d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_OUT_OF_RESOURCES The EFI UDPv4 Protocol driver cannot allocate memory for this 191d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI UDPv4 Protocol instance. 192d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_DEVICE_ERROR An unexpected network or system error occurred and this instance 193d1f950002362305fcd4c30f108ef7b76679f5843yshang was not opened. 194d1f950002362305fcd4c30f108ef7b76679f5843yshang 195d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 196d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 197d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 1988b13229b469f05ec22d76098b052bd6e943feceeklu(EFIAPI *EFI_UDP4_CONFIGURE)( 199d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This, 200d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_CONFIG_DATA *UdpConfigData OPTIONAL 201ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 202d1f950002362305fcd4c30f108ef7b76679f5843yshang 203d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 204d1f950002362305fcd4c30f108ef7b76679f5843yshang Joins and leaves multicast groups. 20530c99a724cc3fda9ee853157e07af72335c3f7e3jgong 20630c99a724cc3fda9ee853157e07af72335c3f7e3jgong The Groups() function is used to enable and disable the multicast group 20730c99a724cc3fda9ee853157e07af72335c3f7e3jgong filtering. If the JoinFlag is FALSE and the MulticastAddress is NULL, then all 20830c99a724cc3fda9ee853157e07af72335c3f7e3jgong currently joined groups are left. 209d1f950002362305fcd4c30f108ef7b76679f5843yshang 210af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 211d1f950002362305fcd4c30f108ef7b76679f5843yshang @param JoinFlag Set to TRUE to join a multicast group. Set to FALSE to leave one 212d1f950002362305fcd4c30f108ef7b76679f5843yshang or all multicast groups. 213af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param MulticastAddress The pointer to multicast group address to join or leave. 214d1f950002362305fcd4c30f108ef7b76679f5843yshang 215d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS The operation completed successfully. 216d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started. 217d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, 218d1f950002362305fcd4c30f108ef7b76679f5843yshang RARP, etc.) is not finished yet. 219d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group. 220d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE: 221d1f950002362305fcd4c30f108ef7b76679f5843yshang - This is NULL. 222d1f950002362305fcd4c30f108ef7b76679f5843yshang - JoinFlag is TRUE and MulticastAddress is NULL. 223d1f950002362305fcd4c30f108ef7b76679f5843yshang - JoinFlag is TRUE and *MulticastAddress is not 224d1f950002362305fcd4c30f108ef7b76679f5843yshang a valid multicast address. 225d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_ALREADY_STARTED The group address is already in the group table (when 226d1f950002362305fcd4c30f108ef7b76679f5843yshang JoinFlag is TRUE). 227d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is 228d1f950002362305fcd4c30f108ef7b76679f5843yshang FALSE). 229d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. 230d1f950002362305fcd4c30f108ef7b76679f5843yshang 231d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 232d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 233d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 2348b13229b469f05ec22d76098b052bd6e943feceeklu(EFIAPI *EFI_UDP4_GROUPS)( 235d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This, 236d1f950002362305fcd4c30f108ef7b76679f5843yshang IN BOOLEAN JoinFlag, 237d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_IPv4_ADDRESS *MulticastAddress OPTIONAL 238ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 239d1f950002362305fcd4c30f108ef7b76679f5843yshang 240d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 241d1f950002362305fcd4c30f108ef7b76679f5843yshang Adds and deletes routing table entries. 24230c99a724cc3fda9ee853157e07af72335c3f7e3jgong 24330c99a724cc3fda9ee853157e07af72335c3f7e3jgong The Routes() function adds a route to or deletes a route from the routing table. 24430c99a724cc3fda9ee853157e07af72335c3f7e3jgong Routes are determined by comparing the SubnetAddress with the destination IP 24530c99a724cc3fda9ee853157e07af72335c3f7e3jgong address and arithmetically AND-ing it with the SubnetMask. The gateway address 24630c99a724cc3fda9ee853157e07af72335c3f7e3jgong must be on the same subnet as the configured station address. 24730c99a724cc3fda9ee853157e07af72335c3f7e3jgong The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0. 24830c99a724cc3fda9ee853157e07af72335c3f7e3jgong The default route matches all destination IP addresses that do not match any 24930c99a724cc3fda9ee853157e07af72335c3f7e3jgong other routes. 25030c99a724cc3fda9ee853157e07af72335c3f7e3jgong A zero GatewayAddress is a nonroute. Packets are sent to the destination IP 25130c99a724cc3fda9ee853157e07af72335c3f7e3jgong address if it can be found in the Address Resolution Protocol (ARP) cache or 25230c99a724cc3fda9ee853157e07af72335c3f7e3jgong on the local subnet. One automatic nonroute entry will be inserted into the 25330c99a724cc3fda9ee853157e07af72335c3f7e3jgong routing table for outgoing packets that are addressed to a local subnet 25430c99a724cc3fda9ee853157e07af72335c3f7e3jgong (gateway address of 0.0.0.0). 25530c99a724cc3fda9ee853157e07af72335c3f7e3jgong Each instance of the EFI UDPv4 Protocol has its own independent routing table. 25630c99a724cc3fda9ee853157e07af72335c3f7e3jgong Instances of the EFI UDPv4 Protocol that use the default IP address will also 25730c99a724cc3fda9ee853157e07af72335c3f7e3jgong have copies of the routing table provided by the EFI_IP4_CONFIG_PROTOCOL. These 25830c99a724cc3fda9ee853157e07af72335c3f7e3jgong copies will be updated automatically whenever the IP driver reconfigures its 25930c99a724cc3fda9ee853157e07af72335c3f7e3jgong instances; as a result, the previous modification to these copies will be lost. 260d1f950002362305fcd4c30f108ef7b76679f5843yshang 261af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 262d1f950002362305fcd4c30f108ef7b76679f5843yshang @param DeleteRoute Set to TRUE to delete this route from the routing table. 263d1f950002362305fcd4c30f108ef7b76679f5843yshang Set to FALSE to add this route to the routing table. 264d1f950002362305fcd4c30f108ef7b76679f5843yshang @param SubnetAddress The destination network address that needs to be routed. 265d1f950002362305fcd4c30f108ef7b76679f5843yshang @param SubnetMask The subnet mask of SubnetAddress. 266d1f950002362305fcd4c30f108ef7b76679f5843yshang @param GatewayAddress The gateway IP address for this route. 267d1f950002362305fcd4c30f108ef7b76679f5843yshang 268d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS The operation completed successfully. 269d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started. 270d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, 271d1f950002362305fcd4c30f108ef7b76679f5843yshang - RARP, etc.) is not finished yet. 272d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_INVALID_PARAMETER One or more parameters are invalid. 273d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table. 274d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_FOUND This route is not in the routing table. 275d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_ACCESS_DENIED The route is already defined in the routing table. 276d1f950002362305fcd4c30f108ef7b76679f5843yshang 277d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 278d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 279d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 2808b13229b469f05ec22d76098b052bd6e943feceeklu(EFIAPI *EFI_UDP4_ROUTES)( 281d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This, 282d1f950002362305fcd4c30f108ef7b76679f5843yshang IN BOOLEAN DeleteRoute, 283d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_IPv4_ADDRESS *SubnetAddress, 284d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_IPv4_ADDRESS *SubnetMask, 285d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_IPv4_ADDRESS *GatewayAddress 286ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 287d1f950002362305fcd4c30f108ef7b76679f5843yshang 288d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 289d1f950002362305fcd4c30f108ef7b76679f5843yshang Polls for incoming data packets and processes outgoing data packets. 29030c99a724cc3fda9ee853157e07af72335c3f7e3jgong 29130c99a724cc3fda9ee853157e07af72335c3f7e3jgong The Poll() function can be used by network drivers and applications to increase 29230c99a724cc3fda9ee853157e07af72335c3f7e3jgong the rate that data packets are moved between the communications device and the 29330c99a724cc3fda9ee853157e07af72335c3f7e3jgong transmit and receive queues. 29430c99a724cc3fda9ee853157e07af72335c3f7e3jgong In some systems, the periodic timer event in the managed network driver may not 29530c99a724cc3fda9ee853157e07af72335c3f7e3jgong poll the underlying communications device fast enough to transmit and/or receive 29630c99a724cc3fda9ee853157e07af72335c3f7e3jgong all data packets without missing incoming packets or dropping outgoing packets. 29730c99a724cc3fda9ee853157e07af72335c3f7e3jgong Drivers and applications that are experiencing packet loss should try calling 29830c99a724cc3fda9ee853157e07af72335c3f7e3jgong the Poll() function more often. 299d1f950002362305fcd4c30f108ef7b76679f5843yshang 300af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 301d1f950002362305fcd4c30f108ef7b76679f5843yshang 302d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS Incoming or outgoing data was processed. 303d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_INVALID_PARAMETER This is NULL. 304d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. 305d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive queue. 306d1f950002362305fcd4c30f108ef7b76679f5843yshang 307d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 308d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 309d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 3108b13229b469f05ec22d76098b052bd6e943feceeklu(EFIAPI *EFI_UDP4_POLL)( 311d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This 312ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 313d1f950002362305fcd4c30f108ef7b76679f5843yshang 314d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 315d1f950002362305fcd4c30f108ef7b76679f5843yshang Places an asynchronous receive request into the receiving queue. 31630c99a724cc3fda9ee853157e07af72335c3f7e3jgong 31730c99a724cc3fda9ee853157e07af72335c3f7e3jgong The Receive() function places a completion token into the receive packet queue. 31830c99a724cc3fda9ee853157e07af72335c3f7e3jgong This function is always asynchronous. 31930c99a724cc3fda9ee853157e07af72335c3f7e3jgong The caller must fill in the Token.Event field in the completion token, and this 32030c99a724cc3fda9ee853157e07af72335c3f7e3jgong field cannot be NULL. When the receive operation completes, the EFI UDPv4 Protocol 32130c99a724cc3fda9ee853157e07af72335c3f7e3jgong driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event 32230c99a724cc3fda9ee853157e07af72335c3f7e3jgong is signaled. Providing a proper notification function and context for the event 32330c99a724cc3fda9ee853157e07af72335c3f7e3jgong will enable the user to receive the notification and receiving status. That 32430c99a724cc3fda9ee853157e07af72335c3f7e3jgong notification function is guaranteed to not be re-entered. 325d1f950002362305fcd4c30f108ef7b76679f5843yshang 326af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 327af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param Token The pointer to a token that is associated with the receive data 328d1f950002362305fcd4c30f108ef7b76679f5843yshang descriptor. 329d1f950002362305fcd4c30f108ef7b76679f5843yshang 330d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS The receive completion token was cached. 331d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started. 332d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, RARP, etc.) 333d1f950002362305fcd4c30f108ef7b76679f5843yshang is not finished yet. 334a89fa50ccf7a29405e3d24c49625dbd70cdba9famyronporter @retval EFI_INVALID_PARAMETER This is NULL. 335852d89119109fd27d58278988a0060a13559e894qhuang @retval EFI_INVALID_PARAMETER Token is NULL. 336852d89119109fd27d58278988a0060a13559e894qhuang @retval EFI_INVALID_PARAMETER Token.Event is NULL. 337d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system 338d1f950002362305fcd4c30f108ef7b76679f5843yshang resources (usually memory). 339d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. 340d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_ACCESS_DENIED A receive completion token with the same Token.Event was already in 341d1f950002362305fcd4c30f108ef7b76679f5843yshang the receive queue. 342d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_READY The receive request could not be queued because the receive queue is full. 343d1f950002362305fcd4c30f108ef7b76679f5843yshang 344d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 345d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 346d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 3478b13229b469f05ec22d76098b052bd6e943feceeklu(EFIAPI *EFI_UDP4_RECEIVE)( 348d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This, 349d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_COMPLETION_TOKEN *Token 350ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 351d1f950002362305fcd4c30f108ef7b76679f5843yshang 352d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 353d1f950002362305fcd4c30f108ef7b76679f5843yshang Queues outgoing data packets into the transmit queue. 35430c99a724cc3fda9ee853157e07af72335c3f7e3jgong 35530c99a724cc3fda9ee853157e07af72335c3f7e3jgong The Transmit() function places a sending request to this instance of the EFI 35630c99a724cc3fda9ee853157e07af72335c3f7e3jgong UDPv4 Protocol, alongside the transmit data that was filled by the user. Whenever 35730c99a724cc3fda9ee853157e07af72335c3f7e3jgong the packet in the token is sent out or some errors occur, the Token.Event will 35830c99a724cc3fda9ee853157e07af72335c3f7e3jgong be signaled and Token.Status is updated. Providing a proper notification function 35930c99a724cc3fda9ee853157e07af72335c3f7e3jgong and context for the event will enable the user to receive the notification and 36030c99a724cc3fda9ee853157e07af72335c3f7e3jgong transmitting status. 361d1f950002362305fcd4c30f108ef7b76679f5843yshang 362af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 363af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param Token The pointer to the completion token that will be placed into the 364d1f950002362305fcd4c30f108ef7b76679f5843yshang transmit queue. 365d1f950002362305fcd4c30f108ef7b76679f5843yshang 366d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS The data has been queued for transmission. 367d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started. 368d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, 369d1f950002362305fcd4c30f108ef7b76679f5843yshang RARP, etc.) is not finished yet. 370d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_INVALID_PARAMETER One or more parameters are invalid. 371d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_ACCESS_DENIED The transmit completion token with the same 372d1f950002362305fcd4c30f108ef7b76679f5843yshang Token.Event was already in the transmit queue. 373d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_READY The completion token could not be queued because the 374d1f950002362305fcd4c30f108ef7b76679f5843yshang transmit queue is full. 375d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_OUT_OF_RESOURCES Could not queue the transmit data. 376d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_FOUND There is no route to the destination network or address. 377d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP packet 378d1f950002362305fcd4c30f108ef7b76679f5843yshang size. Or the length of the IP header + UDP header + data 379d1f950002362305fcd4c30f108ef7b76679f5843yshang length is greater than MTU if DoNotFragment is TRUE. 380d1f950002362305fcd4c30f108ef7b76679f5843yshang 381d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 382d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 383d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 3848b13229b469f05ec22d76098b052bd6e943feceeklu(EFIAPI *EFI_UDP4_TRANSMIT)( 385d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This, 386d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_COMPLETION_TOKEN *Token 387ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 388d1f950002362305fcd4c30f108ef7b76679f5843yshang 389d1f950002362305fcd4c30f108ef7b76679f5843yshang/** 390d1f950002362305fcd4c30f108ef7b76679f5843yshang Aborts an asynchronous transmit or receive request. 39130c99a724cc3fda9ee853157e07af72335c3f7e3jgong 39230c99a724cc3fda9ee853157e07af72335c3f7e3jgong The Cancel() function is used to abort a pending transmit or receive request. 39330c99a724cc3fda9ee853157e07af72335c3f7e3jgong If the token is in the transmit or receive request queues, after calling this 39430c99a724cc3fda9ee853157e07af72335c3f7e3jgong function, Token.Status will be set to EFI_ABORTED and then Token.Event will be 39530c99a724cc3fda9ee853157e07af72335c3f7e3jgong signaled. If the token is not in one of the queues, which usually means that 39630c99a724cc3fda9ee853157e07af72335c3f7e3jgong the asynchronous operation has completed, this function will not signal the 39730c99a724cc3fda9ee853157e07af72335c3f7e3jgong token and EFI_NOT_FOUND is returned. 398d1f950002362305fcd4c30f108ef7b76679f5843yshang 399af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param This The pointer to the EFI_UDP4_PROTOCOL instance. 400af2dc6a70b9380d702bd0720cdb029d630c505e3myronporter @param Token The pointer to a token that has been issued by 401d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_PROTOCOL.Transmit() or 402d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_PROTOCOL.Receive().If NULL, all pending 403d1f950002362305fcd4c30f108ef7b76679f5843yshang tokens are aborted. 404d1f950002362305fcd4c30f108ef7b76679f5843yshang 405d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_SUCCESS The asynchronous I/O request was aborted and Token.Event 406d1f950002362305fcd4c30f108ef7b76679f5843yshang was signaled. When Token is NULL, all pending requests are 407d1f950002362305fcd4c30f108ef7b76679f5843yshang aborted and their events are signaled. 408d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_INVALID_PARAMETER This is NULL. 409d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_STARTED This instance has not been started. 410d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP, 411d1f950002362305fcd4c30f108ef7b76679f5843yshang RARP, etc.) is not finished yet. 412d1f950002362305fcd4c30f108ef7b76679f5843yshang @retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was 413d1f950002362305fcd4c30f108ef7b76679f5843yshang not found in the transmit or receive queue. It has either completed 414d1f950002362305fcd4c30f108ef7b76679f5843yshang or was not issued by Transmit() and Receive(). 415d1f950002362305fcd4c30f108ef7b76679f5843yshang 416d1f950002362305fcd4c30f108ef7b76679f5843yshang**/ 417d1f950002362305fcd4c30f108ef7b76679f5843yshangtypedef 418d1f950002362305fcd4c30f108ef7b76679f5843yshangEFI_STATUS 419d1f950002362305fcd4c30f108ef7b76679f5843yshang(EFIAPI *EFI_UDP4_CANCEL)( 420d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_PROTOCOL *This, 421d1f950002362305fcd4c30f108ef7b76679f5843yshang IN EFI_UDP4_COMPLETION_TOKEN *Token OPTIONAL 422ed66e1bc0d2be0a185fc47adab4930c3b7e2767fvanjeff ); 423d1f950002362305fcd4c30f108ef7b76679f5843yshang 42444717a398fddc4df1f4aeaa70bcd7a043187ed34xli/// 42544717a398fddc4df1f4aeaa70bcd7a043187ed34xli/// The EFI_UDP4_PROTOCOL defines an EFI UDPv4 Protocol session that can be used 42644717a398fddc4df1f4aeaa70bcd7a043187ed34xli/// by any network drivers, applications, or daemons to transmit or receive UDP packets. 42744717a398fddc4df1f4aeaa70bcd7a043187ed34xli/// This protocol instance can either be bound to a specified port as a service or 42844717a398fddc4df1f4aeaa70bcd7a043187ed34xli/// connected to some remote peer as an active client. Each instance has its own settings, 42944717a398fddc4df1f4aeaa70bcd7a043187ed34xli/// such as the routing table and group table, which are independent from each other. 43044717a398fddc4df1f4aeaa70bcd7a043187ed34xli/// 431d1f950002362305fcd4c30f108ef7b76679f5843yshangstruct _EFI_UDP4_PROTOCOL { 432d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_GET_MODE_DATA GetModeData; 433d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_CONFIGURE Configure; 434d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_GROUPS Groups; 435d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_ROUTES Routes; 436d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_TRANSMIT Transmit; 437d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_RECEIVE Receive; 438d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_CANCEL Cancel; 439d1f950002362305fcd4c30f108ef7b76679f5843yshang EFI_UDP4_POLL Poll; 440d1f950002362305fcd4c30f108ef7b76679f5843yshang}; 441d1f950002362305fcd4c30f108ef7b76679f5843yshang 442d1f950002362305fcd4c30f108ef7b76679f5843yshangextern EFI_GUID gEfiUdp4ServiceBindingProtocolGuid; 443d1f950002362305fcd4c30f108ef7b76679f5843yshangextern EFI_GUID gEfiUdp4ProtocolGuid; 444d1f950002362305fcd4c30f108ef7b76679f5843yshang 445d1f950002362305fcd4c30f108ef7b76679f5843yshang#endif 446