/** @file Definitions for the EFI Socket layer library. Copyright (c) 2011, Intel Corporation All rights reserved. This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. **/ #ifndef _EFI_SOCKET_LIB_H_ #define _EFI_SOCKET_LIB_H_ #include #include #include #include #include #include #include #include #include #include //------------------------------------------------------------------------------ // Constants //------------------------------------------------------------------------------ #define DEBUG_TPL 0x40000000 ///< Display TPL change messages #define TPL_SOCKETS TPL_CALLBACK ///< TPL for routine synchronization //------------------------------------------------------------------------------ // Macros //------------------------------------------------------------------------------ #if defined(_MSC_VER) /* Handle Microsoft VC++ compiler specifics. */ #define DBG_ENTER() DEBUG (( DEBUG_INFO, "Entering " __FUNCTION__ "\n" )) ///< Display routine entry #define DBG_EXIT() DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ "\n" )) ///< Display routine exit #define DBG_EXIT_DEC(Status) DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", Status: %d\n", Status )) ///< Display routine exit with decimal value #define DBG_EXIT_HEX(Status) DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", Status: 0x%08x\n", Status )) ///< Display routine exit with hex value #define DBG_EXIT_STATUS(Status) DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", Status: %r\n", Status )) ///< Display routine exit with status value #define DBG_EXIT_TF(Status) DEBUG (( DEBUG_INFO, "Exiting " __FUNCTION__ ", returning %s\n", (FALSE == Status) ? L"FALSE" : L"TRUE" )) ///< Display routine with TRUE/FALSE value #else // _MSC_VER #define DBG_ENTER() #define DBG_EXIT() #define DBG_EXIT_DEC(Status) #define DBG_EXIT_HEX(Status) #define DBG_EXIT_STATUS(Status) #define DBG_EXIT_TF(Status) #endif // _MSC_VER #define DIM(x) ( sizeof ( x ) / sizeof ( x[0] )) ///< Compute the number of entries in an array /** Verify new TPL value This macro which is enabled when debug is enabled verifies that the new TPL value is >= the current TPL value. **/ #ifdef VERIFY_TPL #undef VERIFY_TPL #endif // VERIFY_TPL #if !defined(MDEPKG_NDEBUG) #define VERIFY_TPL(tpl) \ { \ EFI_TPL PreviousTpl; \ \ PreviousTpl = gBS->RaiseTPL ( TPL_HIGH_LEVEL ); \ gBS->RestoreTPL ( PreviousTpl ); \ if ( PreviousTpl > tpl ) { \ DEBUG (( DEBUG_ERROR | DEBUG_TPL, \ "Current TPL: %d, New TPL: %d\r\n", \ PreviousTpl, tpl )); \ ASSERT ( PreviousTpl <= tpl ); \ } \ } #else // MDEPKG_NDEBUG #define VERIFY_TPL(tpl) #endif // MDEPKG_NDEBUG #define RAISE_TPL(PreviousTpl, tpl) \ VERIFY_TPL ( tpl ); \ PreviousTpl = gBS->RaiseTPL ( tpl ); \ DEBUG (( DEBUG_TPL | DEBUG_TPL, \ "%d: TPL\r\n", \ tpl )) #define RESTORE_TPL(tpl) \ gBS->RestoreTPL ( tpl ); \ DEBUG (( DEBUG_TPL | DEBUG_TPL, \ "%d: TPL\r\n", \ tpl )) //------------------------------------------------------------------------------ // Data Types //------------------------------------------------------------------------------ typedef struct _DT_SERVICE DT_SERVICE; ///< Forward delcaration typedef EFI_STATUS (* PFN_SB_INITIALIZE) ( DT_SERVICE * pService ); typedef VOID (* PFN_SB_SHUTDOWN) ( DT_SERVICE * pService ); /** Protocol binding and installation control structure The driver uses this structure to simplify the driver binding processing. **/ typedef struct { CHAR16 * pName; ///< Protocol name EFI_GUID * pNetworkBinding; ///< Network service binding protocol for socket support CONST EFI_GUID * pTagGuid; ///< Tag to mark protocol in use PFN_SB_INITIALIZE pfnInitialize;///< Routine to initialize the service PFN_SB_SHUTDOWN pfnShutdown; ///< Routine to shutdown the service } DT_SOCKET_BINDING; //------------------------------------------------------------------------------ // GUIDs //------------------------------------------------------------------------------ extern CONST EFI_GUID mEslRawServiceGuid; extern CONST EFI_GUID mEslTcp4ServiceGuid; extern CONST EFI_GUID mEslUdp4ServiceGuid; //------------------------------------------------------------------------------ // Data //------------------------------------------------------------------------------ extern CONST DT_SOCKET_BINDING cEslSocketBinding []; extern CONST UINTN cEslSocketBindingEntries; //------------------------------------------------------------------------------ // Service Support Routines //------------------------------------------------------------------------------ /** Connect to the network service bindings Walk the network service protocols on the controller handle and locate any that are not in use. Create service structures to manage the service binding for the socket driver. @param [in] BindingHandle Handle for protocol binding. @param [in] Controller Handle of device to work with. @retval EFI_SUCCESS This driver is added to Controller. @retval other This driver does not support this device. **/ EFI_STATUS EFIAPI EslServiceConnect ( IN EFI_HANDLE BindingHandle, IN EFI_HANDLE Controller ); /** Shutdown the network connections to this controller by removing NetworkInterfaceIdentifier protocol and closing the DevicePath and PciIo protocols on Controller. @param [in] BindingHandle Handle for protocol binding. @param [in] Controller Handle of device to stop driver on. @retval EFI_SUCCESS This driver is removed Controller. @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. @retval other This driver was not removed from this device. **/ EFI_STATUS EFIAPI EslServiceDisconnect ( IN EFI_HANDLE BindingHandle, IN EFI_HANDLE Controller ); /** Install the socket service @param [in] pImageHandle Address of the image handle @retval EFI_SUCCESS Service installed successfully **/ EFI_STATUS EFIAPI EslServiceInstall ( IN EFI_HANDLE * pImageHandle ); /** Initialize the service layer @param [in] ImageHandle Handle for the image. **/ VOID EFIAPI EslServiceLoad ( IN EFI_HANDLE ImageHandle ); /** Uninstall the socket service @param [in] ImageHandle Handle for the image. @retval EFI_SUCCESS Service installed successfully **/ EFI_STATUS EFIAPI EslServiceUninstall ( IN EFI_HANDLE ImageHandle ); /** Shutdown the service layer **/ VOID EFIAPI EslServiceUnload ( VOID ); //------------------------------------------------------------------------------ // Socket Service Binding Protocol Routines //------------------------------------------------------------------------------ /** Creates a child handle and installs a protocol. The CreateChild() function installs a protocol on ChildHandle. If pChildHandle is a pointer to NULL, then a new handle is created and returned in pChildHandle. If pChildHandle is not a pointer to NULL, then the protocol installs on the existing pChildHandle. @param [in] pThis Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. @param [in] pChildHandle Pointer to the handle of the child to create. If it is NULL, then a new handle is created. If it is a pointer to an existing UEFI handle, then the protocol is added to the existing UEFI handle. @retval EFI_SUCCES The protocol was added to ChildHandle. @retval EFI_INVALID_PARAMETER ChildHandle is NULL. @retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create the child @retval other The child handle was not created **/ EFI_STATUS EFIAPI EslSocketCreateChild ( IN EFI_SERVICE_BINDING_PROTOCOL * pThis, IN OUT EFI_HANDLE * pChildHandle ); /** Destroys a child handle with a protocol installed on it. The DestroyChild() function does the opposite of CreateChild(). It removes a protocol that was installed by CreateChild() from ChildHandle. If the removed protocol is the last protocol on ChildHandle, then ChildHandle is destroyed. @param [in] pThis Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. @param [in] ChildHandle Handle of the child to destroy @retval EFI_SUCCES The protocol was removed from ChildHandle. @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed. @retval EFI_INVALID_PARAMETER Child handle is not a valid UEFI Handle. @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle because its services are being used. @retval other The child handle was not destroyed **/ EFI_STATUS EFIAPI EslSocketDestroyChild ( IN EFI_SERVICE_BINDING_PROTOCOL * pThis, IN EFI_HANDLE ChildHandle ); //------------------------------------------------------------------------------ // Socket Protocol Routines //------------------------------------------------------------------------------ /** Bind a name to a socket. The ::SocketBind routine connects a name to a socket on the local machine. The POSIX documentation for the bind routine is available online for reference. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] pSockAddr Address of a sockaddr structure that contains the connection point on the local machine. An IPv4 address of INADDR_ANY specifies that the connection is made to all of the network stacks on the platform. Specifying a specific IPv4 address restricts the connection to the network stack supporting that address. Specifying zero for the port causes the network layer to assign a port number from the dynamic range. Specifying a specific port number causes the network layer to use that port. @param [in] SockAddrLen Specifies the length in bytes of the sockaddr structure. @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket successfully created **/ EFI_STATUS EslSocketBind ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN const struct sockaddr * pSockAddr, IN socklen_t SockAddrLength, OUT int * pErrno ); /** Determine if the socket is closed Reverses the operations of the ::SocketAllocate() routine. @param [in] pSocketProtocol Address of the socket protocol structure. @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS Socket successfully closed @retval EFI_NOT_READY Close still in progress @retval EFI_ALREADY Close operation already in progress @retval Other Failed to close the socket **/ EFI_STATUS EslSocketClosePoll ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN int * pErrno ); /** Start the close operation on the socket Start closing the socket by closing all of the ports. Upon completion, the ::SocketPoll() routine finishes closing the socket. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] bCloseNow Boolean to control close behavior @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS Socket successfully closed @retval EFI_NOT_READY Close still in progress @retval EFI_ALREADY Close operation already in progress @retval Other Failed to close the socket **/ EFI_STATUS EslSocketCloseStart ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN BOOLEAN bCloseNow, IN int * pErrno ); /** Connect to a remote system via the network. The ::SocketConnect routine attempts to establish a connection to a socket on the local or remote system using the specified address. The POSIX connect documentation is available online. There are three states associated with a connection:
  • Not connected
  • Connection in progress
  • Connected
In the "Not connected" state, calls to ::connect start the connection processing and update the state to "Connection in progress". During the "Connection in progress" state, connect polls for connection completion and moves the state to "Connected" after the connection is established. Note that these states are only visible when the file descriptor is marked with O_NONBLOCK. Also, the POLL_WRITE bit is set when the connection completes and may be used by poll or select as an indicator to call connect again. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] pSockAddr Network address of the remote system. @param [in] SockAddrLength Length in bytes of the network address. @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS The connection was successfully established. @retval EFI_NOT_READY The connection is in progress, call this routine again. @retval Others The connection attempt failed. **/ EFI_STATUS EslSocketConnect ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN const struct sockaddr * pSockAddr, IN socklen_t SockAddrLength, IN int * pErrno ); /** Get the local address. @param [in] pSocketProtocol Address of the socket protocol structure. @param [out] pAddress Network address to receive the local system address @param [in,out] pAddressLength Length of the local network address structure @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Local address successfully returned **/ EFI_STATUS EslSocketGetLocalAddress ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, OUT struct sockaddr * pAddress, IN OUT socklen_t * pAddressLength, IN int * pErrno ); /** Get the peer address. @param [in] pSocketProtocol Address of the socket protocol structure. @param [out] pAddress Network address to receive the remote system address @param [in,out] pAddressLength Length of the remote network address structure @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Remote address successfully returned **/ EFI_STATUS EslSocketGetPeerAddress ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, OUT struct sockaddr * pAddress, IN OUT socklen_t * pAddressLength, IN int * pErrno ); /** Establish the known port to listen for network connections. The ::SocketListen routine places the port into a state that enables connection attempts. Connections are placed into FIFO order in a queue to be serviced by the application. The application calls the ::SocketAccept routine to remove the next connection from the queue and get the associated socket. The POSIX documentation for the bind routine is available online for reference. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] Backlog Backlog specifies the maximum FIFO depth for the connections waiting for the application to call accept. Connection attempts received while the queue is full are refused. @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket successfully created @retval Other - Failed to enable the socket for listen **/ EFI_STATUS EslSocketListen ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN INT32 Backlog, OUT int * pErrno ); /** Get the socket options Retrieve the socket options one at a time by name. The POSIX documentation is available online. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] level Option protocol level @param [in] option_name Name of the option @param [out] option_value Buffer to receive the option value @param [in,out] option_len Length of the buffer in bytes, upon return length of the option value in bytes @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket data successfully received **/ EFI_STATUS EslSocketOptionGet ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN int level, IN int option_name, OUT void * __restrict option_value, IN OUT socklen_t * __restrict option_len, IN int * pErrno ); /** Set the socket options Adjust the socket options one at a time by name. The POSIX documentation is available online. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] level Option protocol level @param [in] option_name Name of the option @param [in] option_value Buffer containing the option value @param [in] option_len Length of the buffer in bytes @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket data successfully received **/ EFI_STATUS EslSocketOptionSet ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN int level, IN int option_name, IN CONST void * option_value, IN socklen_t option_len, IN int * pErrno ); /** Poll a socket for pending activity. The SocketPoll routine checks a socket for pending activity associated with the event mask. Activity is returned in the detected event buffer. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] Events Events of interest for this socket @param [in] pEvents Address to receive the detected events @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket successfully polled @retval EFI_INVALID_PARAMETER - When pEvents is NULL **/ EFI_STATUS EslSocketPoll ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN short Events, IN short * pEvents, IN int * pErrno ); /** Receive data from a network connection. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] Flags Message control flags @param [in] BufferLength Length of the the buffer @param [in] pBuffer Address of a buffer to receive the data. @param [in] pDataLength Number of received data bytes in the buffer. @param [out] pAddress Network address to receive the remote system address @param [in,out] pAddressLength Length of the remote network address structure @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket data successfully received **/ EFI_STATUS EslSocketReceive ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN INT32 Flags, IN size_t BufferLength, IN UINT8 * pBuffer, OUT size_t * pDataLength, OUT struct sockaddr * pAddress, IN OUT socklen_t * pAddressLength, IN int * pErrno ); /** Shutdown the socket receive and transmit operations The SocketShutdown routine stops the socket receive and transmit operations. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] How Which operations to stop @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket operations successfully shutdown **/ EFI_STATUS EslSocketShutdown ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN int How, IN int * pErrno ); /** Send data using a network connection. The SocketTransmit routine queues the data for transmission to the remote network connection. @param [in] pSocketProtocol Address of the socket protocol structure. @param [in] Flags Message control flags @param [in] BufferLength Length of the the buffer @param [in] pBuffer Address of a buffer containing the data to send @param [in] pDataLength Address to receive the number of data bytes sent @param [in] pAddress Network address of the remote system address @param [in] AddressLength Length of the remote network address structure @param [out] pErrno Address to receive the errno value upon completion. @retval EFI_SUCCESS - Socket data successfully received **/ EFI_STATUS EslSocketTransmit ( IN EFI_SOCKET_PROTOCOL * pSocketProtocol, IN int Flags, IN size_t BufferLength, IN CONST UINT8 * pBuffer, OUT size_t * pDataLength, IN const struct sockaddr * pAddress, IN socklen_t AddressLength, IN int * pErrno ); //------------------------------------------------------------------------------ #endif // _EFI_SOCKET_LIB_H_