mirror of https://github.com/FreeRDP/FreeRDP
392 lines
12 KiB
C
392 lines
12 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* RemoteFX USB Redirection
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*
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* Copyright 2012 Atrust corp.
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* Copyright 2012 Alfred Liu <alfred.liu@atruscorp.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <freerdp/log.h>
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#include <freerdp/utils/msusb.h>
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#define TAG FREERDP_TAG("utils")
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#ifdef WITH_DEBUG_MSUSB
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#define DEBUG_MSUSB(...) WLog_DBG(TAG, __VA_ARGS__)
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#else
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#define DEBUG_MSUSB(...) do { } while (0)
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#endif
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static MSUSB_PIPE_DESCRIPTOR* msusb_mspipe_new()
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{
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return (MSUSB_PIPE_DESCRIPTOR*) calloc(1, sizeof(MSUSB_PIPE_DESCRIPTOR));
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}
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static void msusb_mspipes_free(MSUSB_PIPE_DESCRIPTOR** MsPipes,
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UINT32 NumberOfPipes)
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{
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UINT32 pnum = 0;
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if (MsPipes)
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{
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for (pnum = 0; pnum < NumberOfPipes && MsPipes[pnum]; pnum++)
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{
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zfree(MsPipes[pnum]);
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}
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zfree(MsPipes);
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}
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}
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void msusb_mspipes_replace(MSUSB_INTERFACE_DESCRIPTOR* MsInterface,
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MSUSB_PIPE_DESCRIPTOR** NewMsPipes, UINT32 NewNumberOfPipes)
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{
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/* free orignal MsPipes */
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msusb_mspipes_free(MsInterface->MsPipes, MsInterface->NumberOfPipes);
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/* And replace it */
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MsInterface->MsPipes = NewMsPipes;
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MsInterface->NumberOfPipes = NewNumberOfPipes;
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}
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static MSUSB_PIPE_DESCRIPTOR** msusb_mspipes_read(BYTE* data, UINT32 data_size,
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UINT32 NumberOfPipes, int* offset)
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{
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UINT32 pnum, move = 0;
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MSUSB_PIPE_DESCRIPTOR** MsPipes;
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MsPipes = (MSUSB_PIPE_DESCRIPTOR**) calloc(NumberOfPipes,
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sizeof(MSUSB_PIPE_DESCRIPTOR*));
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if (!MsPipes)
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return NULL;
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for (pnum = 0; pnum < NumberOfPipes; pnum++)
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{
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MSUSB_PIPE_DESCRIPTOR* MsPipe = msusb_mspipe_new();
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if (!MsPipe)
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goto out_error;
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data_read_UINT16(data + move, MsPipe->MaximumPacketSize);
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data_read_UINT32(data + move + 4, MsPipe->MaximumTransferSize);
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data_read_UINT32(data + move + 8, MsPipe->PipeFlags);
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move += 12;
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/* Already set to zero by memset
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MsPipe->PipeHandle = 0;
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MsPipe->bEndpointAddress = 0;
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MsPipe->bInterval = 0;
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MsPipe->PipeType = 0;
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MsPipe->InitCompleted = 0;
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*/
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MsPipes[pnum] = MsPipe;
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}
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*offset += move;
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return MsPipes;
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out_error:
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for (pnum = 0; pnum < NumberOfPipes; pnum++)
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{
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free(MsPipes[pnum]);
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}
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free(MsPipes);
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return NULL;
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}
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static MSUSB_INTERFACE_DESCRIPTOR* msusb_msinterface_new()
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{
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return (MSUSB_INTERFACE_DESCRIPTOR*) calloc(1,
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sizeof(MSUSB_INTERFACE_DESCRIPTOR));
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}
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static void msusb_msinterface_free(MSUSB_INTERFACE_DESCRIPTOR* MsInterface)
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{
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if (MsInterface)
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{
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msusb_mspipes_free(MsInterface->MsPipes, MsInterface->NumberOfPipes);
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MsInterface->MsPipes = NULL;
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zfree(MsInterface);
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}
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}
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static void msusb_msinterface_free_list(MSUSB_INTERFACE_DESCRIPTOR**
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MsInterfaces, UINT32 NumInterfaces)
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{
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UINT32 inum = 0;
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if (MsInterfaces)
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{
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for (inum = 0; inum < NumInterfaces; inum++)
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{
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msusb_msinterface_free(MsInterfaces[inum]);
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}
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zfree(MsInterfaces);
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}
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}
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void msusb_msinterface_replace(MSUSB_CONFIG_DESCRIPTOR* MsConfig,
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BYTE InterfaceNumber, MSUSB_INTERFACE_DESCRIPTOR* NewMsInterface)
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{
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msusb_msinterface_free(MsConfig->MsInterfaces[InterfaceNumber]);
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MsConfig->MsInterfaces[InterfaceNumber] = NewMsInterface;
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}
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MSUSB_INTERFACE_DESCRIPTOR* msusb_msinterface_read(BYTE* data, UINT32 data_size,
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int* offset)
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{
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MSUSB_INTERFACE_DESCRIPTOR* MsInterface;
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MsInterface = msusb_msinterface_new();
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if (!MsInterface)
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return NULL;
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data_read_UINT16(data, MsInterface->Length);
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data_read_UINT16(data + 2, MsInterface->NumberOfPipesExpected);
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data_read_BYTE(data + 4, MsInterface->InterfaceNumber);
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data_read_BYTE(data + 5, MsInterface->AlternateSetting);
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data_read_UINT32(data + 8, MsInterface->NumberOfPipes);
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*offset += 12;
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MsInterface->InterfaceHandle = 0;
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MsInterface->bInterfaceClass = 0;
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MsInterface->bInterfaceSubClass = 0;
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MsInterface->bInterfaceProtocol = 0;
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MsInterface->InitCompleted = 0;
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MsInterface->MsPipes = NULL;
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if (MsInterface->NumberOfPipes > 0)
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{
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MsInterface->MsPipes =
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msusb_mspipes_read(data + (*offset), data_size - (*offset),
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MsInterface->NumberOfPipes, offset);
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if (!MsInterface->MsPipes)
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goto out_error;
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}
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return MsInterface;
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out_error:
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msusb_msinterface_free(MsInterface);
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return NULL;
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}
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int msusb_msinterface_write(MSUSB_INTERFACE_DESCRIPTOR* MsInterface, BYTE* data,
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int* offset)
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{
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MSUSB_PIPE_DESCRIPTOR** MsPipes;
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MSUSB_PIPE_DESCRIPTOR* MsPipe;
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UINT32 pnum = 0, move = 0;
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/* Length */
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data_write_UINT16(data, MsInterface->Length);
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/* InterfaceNumber */
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data_write_BYTE(data + 2, MsInterface->InterfaceNumber);
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/* AlternateSetting */
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data_write_BYTE(data + 3, MsInterface->AlternateSetting);
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/* bInterfaceClass */
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data_write_BYTE(data + 4, MsInterface->bInterfaceClass);
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/* bInterfaceSubClass */
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data_write_BYTE(data + 5, MsInterface->bInterfaceSubClass);
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/* bInterfaceProtocol */
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data_write_BYTE(data + 6, MsInterface->bInterfaceProtocol);
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/* Padding */
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data_write_BYTE(data + 7, 0);
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/* InterfaceHandle */
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data_write_UINT32(data + 8, MsInterface->InterfaceHandle);
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/* NumberOfPipes */
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data_write_UINT32(data + 12, MsInterface->NumberOfPipes);
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move += 16;
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/* Pipes */
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MsPipes = MsInterface->MsPipes;
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for (pnum = 0; pnum < MsInterface->NumberOfPipes; pnum++)
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{
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MsPipe = MsPipes[pnum];
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/* MaximumPacketSize */
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data_write_UINT16(data + move, MsPipe->MaximumPacketSize);
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/* EndpointAddress */
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data_write_BYTE(data + move + 2, MsPipe->bEndpointAddress);
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/* Interval */
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data_write_BYTE(data + move + 3, MsPipe->bInterval);
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/* PipeType */
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data_write_UINT32(data + move + 4, MsPipe->PipeType);
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/* PipeHandle */
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data_write_UINT32(data + move + 8, MsPipe->PipeHandle);
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/* MaximumTransferSize */
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data_write_UINT32(data + move + 12, MsPipe->MaximumTransferSize);
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/* PipeFlags */
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data_write_UINT32(data + move + 16, MsPipe->PipeFlags);
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move += 20;
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}
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*offset += move;
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return 0;
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}
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static MSUSB_INTERFACE_DESCRIPTOR** msusb_msinterface_read_list(BYTE* data,
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UINT32 data_size, UINT32 NumInterfaces)
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{
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UINT32 inum;
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int offset = 0;
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MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces;
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MsInterfaces = (MSUSB_INTERFACE_DESCRIPTOR**) calloc(NumInterfaces,
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sizeof(MSUSB_INTERFACE_DESCRIPTOR*));
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if (!MsInterfaces)
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return NULL;
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for (inum = 0; inum < NumInterfaces; inum++)
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{
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MsInterfaces[inum] = msusb_msinterface_read(data + offset, data_size - offset,
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&offset);
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}
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return MsInterfaces;
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}
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int msusb_msconfig_write(MSUSB_CONFIG_DESCRIPTOR* MsConfg, BYTE* data,
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int* offset)
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{
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UINT32 inum = 0;
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MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces;
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MSUSB_INTERFACE_DESCRIPTOR* MsInterface;
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/* ConfigurationHandle*/
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data_write_UINT32(data + *offset, MsConfg->ConfigurationHandle);
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/* NumInterfaces*/
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data_write_UINT32(data + *offset + 4, MsConfg->NumInterfaces);
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*offset += 8;
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/* Interfaces */
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MsInterfaces = MsConfg->MsInterfaces;
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for (inum = 0; inum < MsConfg->NumInterfaces; inum++)
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{
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MsInterface = MsInterfaces[inum];
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msusb_msinterface_write(MsInterface, data + (*offset), offset);
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}
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return 0;
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}
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MSUSB_CONFIG_DESCRIPTOR* msusb_msconfig_new()
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{
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return (MSUSB_CONFIG_DESCRIPTOR*) calloc(1, sizeof(MSUSB_CONFIG_DESCRIPTOR));
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}
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void msusb_msconfig_free(MSUSB_CONFIG_DESCRIPTOR* MsConfig)
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{
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if (MsConfig)
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{
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msusb_msinterface_free_list(MsConfig->MsInterfaces, MsConfig->NumInterfaces);
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MsConfig->MsInterfaces = NULL;
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zfree(MsConfig);
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}
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}
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MSUSB_CONFIG_DESCRIPTOR* msusb_msconfig_read(BYTE* data, UINT32 data_size,
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UINT32 NumInterfaces)
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{
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UINT32 i, offset = 0;
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UINT16 lenInterface;
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MSUSB_CONFIG_DESCRIPTOR* MsConfig;
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BYTE lenConfiguration, typeConfiguration;
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MsConfig = msusb_msconfig_new();
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for (i = 0; i < NumInterfaces; i++)
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{
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data_read_UINT16(data + offset, lenInterface);
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offset += lenInterface;
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}
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data_read_BYTE(data + offset, lenConfiguration);
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data_read_BYTE(data + offset + 1, typeConfiguration);
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if (lenConfiguration != 0x9 || typeConfiguration != 0x2)
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{
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DEBUG_MSUSB("%s: len and type must be 0x9 and 0x2 , but it is 0x%"PRIx8" and 0x%"PRIx8"",
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__FUNCTION__, lenConfiguration, typeConfiguration);
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}
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data_read_UINT16(data + offset + 2, MsConfig->wTotalLength);
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data_read_BYTE(data + offset + 5, MsConfig->bConfigurationValue);
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MsConfig->NumInterfaces = NumInterfaces;
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MsConfig->ConfigurationHandle = 0;
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MsConfig->InitCompleted = 0;
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MsConfig->MsOutSize = 0;
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MsConfig->MsInterfaces = NULL;
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offset = 0;
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if (NumInterfaces > 0)
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{
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MsConfig->MsInterfaces = msusb_msinterface_read_list(data, data_size,
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NumInterfaces);
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}
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return MsConfig;
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}
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void msusb_msconfig_dump(MSUSB_CONFIG_DESCRIPTOR* MsConfig)
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{
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MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces;
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MSUSB_INTERFACE_DESCRIPTOR* MsInterface;
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MSUSB_PIPE_DESCRIPTOR** MsPipes;
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MSUSB_PIPE_DESCRIPTOR* MsPipe;
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UINT32 inum = 0, pnum = 0;
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WLog_INFO(TAG, "=================MsConfig:========================");
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WLog_INFO(TAG, "wTotalLength:%"PRIu16"", MsConfig->wTotalLength);
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WLog_INFO(TAG, "bConfigurationValue:%"PRIu8"", MsConfig->bConfigurationValue);
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WLog_INFO(TAG, "ConfigurationHandle:0x%08"PRIx32"", MsConfig->ConfigurationHandle);
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WLog_INFO(TAG, "InitCompleted:%d", MsConfig->InitCompleted);
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WLog_INFO(TAG, "MsOutSize:%d", MsConfig->MsOutSize);
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WLog_INFO(TAG, "NumInterfaces:%"PRIu32"", MsConfig->NumInterfaces);
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MsInterfaces = MsConfig->MsInterfaces;
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for (inum = 0; inum < MsConfig->NumInterfaces; inum++)
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{
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MsInterface = MsInterfaces[inum];
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WLog_INFO(TAG, " Interface: %"PRIu8"", MsInterface->InterfaceNumber);
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WLog_INFO(TAG, " Length: %"PRIu16"", MsInterface->Length);
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WLog_INFO(TAG, " NumberOfPipesExpected: %"PRIu16"",
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MsInterface->NumberOfPipesExpected);
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WLog_INFO(TAG, " AlternateSetting: %"PRIu8"", MsInterface->AlternateSetting);
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WLog_INFO(TAG, " NumberOfPipes: %"PRIu32"", MsInterface->NumberOfPipes);
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WLog_INFO(TAG, " InterfaceHandle: 0x%08"PRIx32"", MsInterface->InterfaceHandle);
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WLog_INFO(TAG, " bInterfaceClass: 0x%02"PRIx8"", MsInterface->bInterfaceClass);
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WLog_INFO(TAG, " bInterfaceSubClass: 0x%02"PRIx8"", MsInterface->bInterfaceSubClass);
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WLog_INFO(TAG, " bInterfaceProtocol: 0x%02"PRIx8"", MsInterface->bInterfaceProtocol);
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WLog_INFO(TAG, " InitCompleted: %d", MsInterface->InitCompleted);
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MsPipes = MsInterface->MsPipes;
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for (pnum = 0; pnum < MsInterface->NumberOfPipes; pnum++)
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{
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MsPipe = MsPipes[pnum];
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WLog_INFO(TAG, " Pipe: %d", pnum);
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WLog_INFO(TAG, " MaximumPacketSize: 0x%04"PRIx16"", MsPipe->MaximumPacketSize);
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WLog_INFO(TAG, " MaximumTransferSize: 0x%08"PRIx32"", MsPipe->MaximumTransferSize);
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WLog_INFO(TAG, " PipeFlags: 0x%08"PRIx32"", MsPipe->PipeFlags);
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WLog_INFO(TAG, " PipeHandle: 0x%08"PRIx32"", MsPipe->PipeHandle);
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WLog_INFO(TAG, " bEndpointAddress: 0x%02"PRIx8"", MsPipe->bEndpointAddress);
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WLog_INFO(TAG, " bInterval: %"PRIu8"", MsPipe->bInterval);
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WLog_INFO(TAG, " PipeType: 0x%02"PRIx8"", MsPipe->PipeType);
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WLog_INFO(TAG, " InitCompleted: %d", MsPipe->InitCompleted);
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}
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}
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WLog_INFO(TAG, "==================================================");
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}
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