diff options
Diffstat (limited to 'EmulatorPkg/Unix/Host/LinuxPacketFilter.c')
| -rw-r--r-- | EmulatorPkg/Unix/Host/LinuxPacketFilter.c | 604 |
1 files changed, 604 insertions, 0 deletions
diff --git a/EmulatorPkg/Unix/Host/LinuxPacketFilter.c b/EmulatorPkg/Unix/Host/LinuxPacketFilter.c new file mode 100644 index 0000000000..20a08c9059 --- /dev/null +++ b/EmulatorPkg/Unix/Host/LinuxPacketFilter.c @@ -0,0 +1,604 @@ +/**@file
+ Linux Packet Filter implementation of the EMU_SNP_PROTOCOL that allows the
+ emulator to get on real networks.
+
+ Currently only the Berkeley Packet Filter is fully implemented and this file
+ is just a template that needs to get filled in.
+
+Copyright (c) 2004 - 2009, Intel Corporation. All rights reserved.<BR>
+Portitions copyright (c) 2011, Apple Inc. 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.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+#include "SecMain.h"
+
+#ifndef __APPLE__
+
+#define EMU_SNP_PRIVATE_SIGNATURE SIGNATURE_32('E', 'M', 's', 'n')
+typedef struct {
+ UINTN Signature;
+
+ EMU_IO_THUNK_PROTOCOL *Thunk;
+
+
+ EMU_SNP_PROTOCOL EmuSnp;
+ EFI_SIMPLE_NETWORK_MODE *Mode;
+
+} EMU_SNP_PRIVATE;
+
+#define EMU_SNP_PRIVATE_DATA_FROM_THIS(a) \
+ CR(a, EMU_SNP_PRIVATE, EmuSnp, EMU_SNP_PRIVATE_SIGNATURE)
+
+/**
+ Register storage for SNP Mode.
+
+ @param This Protocol instance pointer.
+ @param Mode SimpleNetworkProtocol Mode structure passed into driver.
+
+ @retval EFI_SUCCESS The network interface was started.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+
+**/
+EFI_STATUS
+EmuSnpCreateMapping (
+ IN EMU_SNP_PROTOCOL *This,
+ IN EFI_SIMPLE_NETWORK_MODE *Mode
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ Private->Mode = Mode;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Changes the state of a network interface from "stopped" to "started".
+
+ @param This Protocol instance pointer.
+
+ @retval EFI_SUCCESS The network interface was started.
+ @retval EFI_ALREADY_STARTED The network interface is already in the started state.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpStart (
+ IN EMU_SNP_PROTOCOL *This
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Changes the state of a network interface from "started" to "stopped".
+
+ @param This Protocol instance pointer.
+
+ @retval EFI_SUCCESS The network interface was stopped.
+ @retval EFI_ALREADY_STARTED The network interface is already in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpStop (
+ IN EMU_SNP_PROTOCOL *This
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Resets a network adapter and allocates the transmit and receive buffers
+ required by the network interface; optionally, also requests allocation
+ of additional transmit and receive buffers.
+
+ @param This The protocol instance pointer.
+ @param ExtraRxBufferSize The size, in bytes, of the extra receive buffer space
+ that the driver should allocate for the network interface.
+ Some network interfaces will not be able to use the extra
+ buffer, and the caller will not know if it is actually
+ being used.
+ @param ExtraTxBufferSize The size, in bytes, of the extra transmit buffer space
+ that the driver should allocate for the network interface.
+ Some network interfaces will not be able to use the extra
+ buffer, and the caller will not know if it is actually
+ being used.
+
+ @retval EFI_SUCCESS The network interface was initialized.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_OUT_OF_RESOURCES There was not enough memory for the transmit and
+ receive buffers.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpInitialize (
+ IN EMU_SNP_PROTOCOL *This,
+ IN UINTN ExtraRxBufferSize OPTIONAL,
+ IN UINTN ExtraTxBufferSize OPTIONAL
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Resets a network adapter and re-initializes it with the parameters that were
+ provided in the previous call to Initialize().
+
+ @param This The protocol instance pointer.
+ @param ExtendedVerification Indicates that the driver may perform a more
+ exhaustive verification operation of the device
+ during reset.
+
+ @retval EFI_SUCCESS The network interface was reset.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpReset (
+ IN EMU_SNP_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Resets a network adapter and leaves it in a state that is safe for
+ another driver to initialize.
+
+ @param This Protocol instance pointer.
+
+ @retval EFI_SUCCESS The network interface was shutdown.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpShutdown (
+ IN EMU_SNP_PROTOCOL *This
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Manages the multicast receive filters of a network interface.
+
+ @param This The protocol instance pointer.
+ @param Enable A bit mask of receive filters to enable on the network interface.
+ @param Disable A bit mask of receive filters to disable on the network interface.
+ @param ResetMCastFilter Set to TRUE to reset the contents of the multicast receive
+ filters on the network interface to their default values.
+ @param McastFilterCnt Number of multicast HW MAC addresses in the new
+ MCastFilter list. This value must be less than or equal to
+ the MCastFilterCnt field of EMU_SNP_MODE. This
+ field is optional if ResetMCastFilter is TRUE.
+ @param MCastFilter A pointer to a list of new multicast receive filter HW MAC
+ addresses. This list will replace any existing multicast
+ HW MAC address list. This field is optional if
+ ResetMCastFilter is TRUE.
+
+ @retval EFI_SUCCESS The multicast receive filter list was updated.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpReceiveFilters (
+ IN EMU_SNP_PROTOCOL *This,
+ IN UINT32 Enable,
+ IN UINT32 Disable,
+ IN BOOLEAN ResetMCastFilter,
+ IN UINTN MCastFilterCnt OPTIONAL,
+ IN EFI_MAC_ADDRESS *MCastFilter OPTIONAL
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Modifies or resets the current station address, if supported.
+
+ @param This The protocol instance pointer.
+ @param Reset Flag used to reset the station address to the network interfaces
+ permanent address.
+ @param New The new station address to be used for the network interface.
+
+ @retval EFI_SUCCESS The network interfaces station address was updated.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpStationAddress (
+ IN EMU_SNP_PROTOCOL *This,
+ IN BOOLEAN Reset,
+ IN EFI_MAC_ADDRESS *New OPTIONAL
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Resets or collects the statistics on a network interface.
+
+ @param This Protocol instance pointer.
+ @param Reset Set to TRUE to reset the statistics for the network interface.
+ @param StatisticsSize On input the size, in bytes, of StatisticsTable. On
+ output the size, in bytes, of the resulting table of
+ statistics.
+ @param StatisticsTable A pointer to the EFI_NETWORK_STATISTICS structure that
+ contains the statistics.
+
+ @retval EFI_SUCCESS The statistics were collected from the network interface.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_BUFFER_TOO_SMALL The Statistics buffer was too small. The current buffer
+ size needed to hold the statistics is returned in
+ StatisticsSize.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpStatistics (
+ IN EMU_SNP_PROTOCOL *This,
+ IN BOOLEAN Reset,
+ IN OUT UINTN *StatisticsSize OPTIONAL,
+ OUT EFI_NETWORK_STATISTICS *StatisticsTable OPTIONAL
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Converts a multicast IP address to a multicast HW MAC address.
+
+ @param This The protocol instance pointer.
+ @param IPv6 Set to TRUE if the multicast IP address is IPv6 [RFC 2460]. Set
+ to FALSE if the multicast IP address is IPv4 [RFC 791].
+ @param IP The multicast IP address that is to be converted to a multicast
+ HW MAC address.
+ @param MAC The multicast HW MAC address that is to be generated from IP.
+
+ @retval EFI_SUCCESS The multicast IP address was mapped to the multicast
+ HW MAC address.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_BUFFER_TOO_SMALL The Statistics buffer was too small. The current buffer
+ size needed to hold the statistics is returned in
+ StatisticsSize.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpMCastIpToMac (
+ IN EMU_SNP_PROTOCOL *This,
+ IN BOOLEAN IPv6,
+ IN EFI_IP_ADDRESS *IP,
+ OUT EFI_MAC_ADDRESS *MAC
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Performs read and write operations on the NVRAM device attached to a
+ network interface.
+
+ @param This The protocol instance pointer.
+ @param ReadWrite TRUE for read operations, FALSE for write operations.
+ @param Offset Byte offset in the NVRAM device at which to start the read or
+ write operation. This must be a multiple of NvRamAccessSize and
+ less than NvRamSize.
+ @param BufferSize The number of bytes to read or write from the NVRAM device.
+ This must also be a multiple of NvramAccessSize.
+ @param Buffer A pointer to the data buffer.
+
+ @retval EFI_SUCCESS The NVRAM access was performed.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpNvData (
+ IN EMU_SNP_PROTOCOL *This,
+ IN BOOLEAN ReadWrite,
+ IN UINTN Offset,
+ IN UINTN BufferSize,
+ IN OUT VOID *Buffer
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Reads the current interrupt status and recycled transmit buffer status from
+ a network interface.
+
+ @param This The protocol instance pointer.
+ @param InterruptStatus A pointer to the bit mask of the currently active interrupts
+ If this is NULL, the interrupt status will not be read from
+ the device. If this is not NULL, the interrupt status will
+ be read from the device. When the interrupt status is read,
+ it will also be cleared. Clearing the transmit interrupt
+ does not empty the recycled transmit buffer array.
+ @param TxBuf Recycled transmit buffer address. The network interface will
+ not transmit if its internal recycled transmit buffer array
+ is full. Reading the transmit buffer does not clear the
+ transmit interrupt. If this is NULL, then the transmit buffer
+ status will not be read. If there are no transmit buffers to
+ recycle and TxBuf is not NULL, * TxBuf will be set to NULL.
+
+ @retval EFI_SUCCESS The status of the network interface was retrieved.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpGetStatus (
+ IN EMU_SNP_PROTOCOL *This,
+ OUT UINT32 *InterruptStatus OPTIONAL,
+ OUT VOID **TxBuf OPTIONAL
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Places a packet in the transmit queue of a network interface.
+
+ @param This The protocol instance pointer.
+ @param HeaderSize The size, in bytes, of the media header to be filled in by
+ the Transmit() function. If HeaderSize is non-zero, then it
+ must be equal to This->Mode->MediaHeaderSize and the DestAddr
+ and Protocol parameters must not be NULL.
+ @param BufferSize The size, in bytes, of the entire packet (media header and
+ data) to be transmitted through the network interface.
+ @param Buffer A pointer to the packet (media header followed by data) to be
+ transmitted. This parameter cannot be NULL. If HeaderSize is zero,
+ then the media header in Buffer must already be filled in by the
+ caller. If HeaderSize is non-zero, then the media header will be
+ filled in by the Transmit() function.
+ @param SrcAddr The source HW MAC address. If HeaderSize is zero, then this parameter
+ is ignored. If HeaderSize is non-zero and SrcAddr is NULL, then
+ This->Mode->CurrentAddress is used for the source HW MAC address.
+ @param DestAddr The destination HW MAC address. If HeaderSize is zero, then this
+ parameter is ignored.
+ @param Protocol The type of header to build. If HeaderSize is zero, then this
+ parameter is ignored. See RFC 1700, section "Ether Types", for
+ examples.
+
+ @retval EFI_SUCCESS The packet was placed on the transmit queue.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_NOT_READY The network interface is too busy to accept this transmit request.
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize parameter is too small.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpTransmit (
+ IN EMU_SNP_PROTOCOL *This,
+ IN UINTN HeaderSize,
+ IN UINTN BufferSize,
+ IN VOID *Buffer,
+ IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
+ IN EFI_MAC_ADDRESS *DestAddr OPTIONAL,
+ IN UINT16 *Protocol OPTIONAL
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Receives a packet from a network interface.
+
+ @param This The protocol instance pointer.
+ @param HeaderSize The size, in bytes, of the media header received on the network
+ interface. If this parameter is NULL, then the media header size
+ will not be returned.
+ @param BufferSize On entry, the size, in bytes, of Buffer. On exit, the size, in
+ bytes, of the packet that was received on the network interface.
+ @param Buffer A pointer to the data buffer to receive both the media header and
+ the data.
+ @param SrcAddr The source HW MAC address. If this parameter is NULL, the
+ HW MAC source address will not be extracted from the media
+ header.
+ @param DestAddr The destination HW MAC address. If this parameter is NULL,
+ the HW MAC destination address will not be extracted from the
+ media header.
+ @param Protocol The media header type. If this parameter is NULL, then the
+ protocol will not be extracted from the media header. See
+ RFC 1700 section "Ether Types" for examples.
+
+ @retval EFI_SUCCESS The received data was stored in Buffer, and BufferSize has
+ been updated to the number of bytes received.
+ @retval EFI_NOT_STARTED The network interface has not been started.
+ @retval EFI_NOT_READY The network interface is too busy to accept this transmit
+ request.
+ @retval EFI_BUFFER_TOO_SMALL The BufferSize parameter is too small.
+ @retval EFI_INVALID_PARAMETER One or more of the parameters has an unsupported value.
+ @retval EFI_DEVICE_ERROR The command could not be sent to the network interface.
+ @retval EFI_UNSUPPORTED This function is not supported by the network interface.
+
+**/
+EFI_STATUS
+EmuSnpReceive (
+ IN EMU_SNP_PROTOCOL *This,
+ OUT UINTN *HeaderSize OPTIONAL,
+ IN OUT UINTN *BufferSize,
+ OUT VOID *Buffer,
+ OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
+ OUT EFI_MAC_ADDRESS *DestAddr OPTIONAL,
+ OUT UINT16 *Protocol OPTIONAL
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ Private = EMU_SNP_PRIVATE_DATA_FROM_THIS (This);
+
+ return EFI_UNSUPPORTED;
+}
+
+
+EMU_SNP_PROTOCOL gEmuSnpProtocol = {
+ GasketSnpCreateMapping,
+ GasketSnpStart,
+ GasketSnpStop,
+ GasketSnpInitialize,
+ GasketSnpReset,
+ GasketSnpShutdown,
+ GasketSnpReceiveFilters,
+ GasketSnpStationAddress,
+ GasketSnpStatistics,
+ GasketSnpMCastIpToMac,
+ GasketSnpNvData,
+ GasketSnpGetStatus,
+ GasketSnpTransmit,
+ GasketSnpReceive
+};
+
+EFI_STATUS
+EmuSnpThunkOpen (
+ IN EMU_IO_THUNK_PROTOCOL *This
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ if (This->Private != NULL) {
+ return EFI_ALREADY_STARTED;
+ }
+
+ if (!CompareGuid (This->Protocol, &gEmuSnpProtocolGuid)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Private = malloc (sizeof (EMU_SNP_PRIVATE));
+ if (Private == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+
+ Private->Signature = EMU_SNP_PRIVATE_SIGNATURE;
+ Private->Thunk = This;
+ CopyMem (&Private->EmuSnp, &gEmuSnpProtocol, sizeof (gEmuSnpProtocol));
+
+ This->Interface = &Private->EmuSnp;
+ This->Private = Private;
+ return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+EmuSnpThunkClose (
+ IN EMU_IO_THUNK_PROTOCOL *This
+ )
+{
+ EMU_SNP_PRIVATE *Private;
+
+ if (!CompareGuid (This->Protocol, &gEmuSnpProtocolGuid)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Private = This->Private;
+ free (Private);
+
+ return EFI_SUCCESS;
+}
+
+
+
+EMU_IO_THUNK_PROTOCOL gSnpThunkIo = {
+ &gEmuSnpProtocolGuid,
+ NULL,
+ NULL,
+ 0,
+ GasketSnpThunkOpen,
+ GasketSnpThunkClose,
+ NULL
+};
+
+#endif
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