FreeRDP/channels/urbdrc/common/msusb.c
2024-02-22 12:31:50 +01:00

396 lines
11 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* RemoteFX USB Redirection
*
* Copyright 2012 Atrust corp.
* Copyright 2012 Alfred Liu <alfred.liu@atruscorp.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <freerdp/log.h>
#include <msusb.h>
#define TAG FREERDP_TAG("utils")
static MSUSB_PIPE_DESCRIPTOR* msusb_mspipe_new(void)
{
return (MSUSB_PIPE_DESCRIPTOR*)calloc(1, sizeof(MSUSB_PIPE_DESCRIPTOR));
}
static void msusb_mspipes_free(MSUSB_PIPE_DESCRIPTOR** MsPipes, UINT32 NumberOfPipes)
{
if (MsPipes)
{
for (UINT32 pnum = 0; pnum < NumberOfPipes && MsPipes[pnum]; pnum++)
free(MsPipes[pnum]);
free(MsPipes);
}
}
BOOL msusb_mspipes_replace(MSUSB_INTERFACE_DESCRIPTOR* MsInterface,
MSUSB_PIPE_DESCRIPTOR** NewMsPipes, UINT32 NewNumberOfPipes)
{
if (!MsInterface || !NewMsPipes)
return FALSE;
/* free orignal MsPipes */
msusb_mspipes_free(MsInterface->MsPipes, MsInterface->NumberOfPipes);
/* And replace it */
MsInterface->MsPipes = NewMsPipes;
MsInterface->NumberOfPipes = NewNumberOfPipes;
return TRUE;
}
static MSUSB_PIPE_DESCRIPTOR** msusb_mspipes_read(wStream* s, UINT32 NumberOfPipes)
{
MSUSB_PIPE_DESCRIPTOR** MsPipes = NULL;
if (!Stream_CheckAndLogRequiredCapacityOfSize(TAG, (s), NumberOfPipes, 12ull))
return NULL;
MsPipes = (MSUSB_PIPE_DESCRIPTOR**)calloc(NumberOfPipes, sizeof(MSUSB_PIPE_DESCRIPTOR*));
if (!MsPipes)
return NULL;
for (UINT32 pnum = 0; pnum < NumberOfPipes; pnum++)
{
MSUSB_PIPE_DESCRIPTOR* MsPipe = msusb_mspipe_new();
if (!MsPipe)
goto out_error;
Stream_Read_UINT16(s, MsPipe->MaximumPacketSize);
Stream_Seek(s, 2);
Stream_Read_UINT32(s, MsPipe->MaximumTransferSize);
Stream_Read_UINT32(s, MsPipe->PipeFlags);
/* Already set to zero by memset
MsPipe->PipeHandle = 0;
MsPipe->bEndpointAddress = 0;
MsPipe->bInterval = 0;
MsPipe->PipeType = 0;
MsPipe->InitCompleted = 0;
*/
MsPipes[pnum] = MsPipe;
}
return MsPipes;
out_error:
for (UINT32 pnum = 0; pnum < NumberOfPipes; pnum++)
free(MsPipes[pnum]);
free(MsPipes);
return NULL;
}
static MSUSB_INTERFACE_DESCRIPTOR* msusb_msinterface_new(void)
{
return (MSUSB_INTERFACE_DESCRIPTOR*)calloc(1, sizeof(MSUSB_INTERFACE_DESCRIPTOR));
}
void msusb_msinterface_free(MSUSB_INTERFACE_DESCRIPTOR* MsInterface)
{
if (MsInterface)
{
msusb_mspipes_free(MsInterface->MsPipes, MsInterface->NumberOfPipes);
MsInterface->MsPipes = NULL;
free(MsInterface);
}
}
static void msusb_msinterface_free_list(MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces,
UINT32 NumInterfaces)
{
if (MsInterfaces)
{
for (UINT32 inum = 0; inum < NumInterfaces; inum++)
{
msusb_msinterface_free(MsInterfaces[inum]);
}
free(MsInterfaces);
}
}
BOOL msusb_msinterface_replace(MSUSB_CONFIG_DESCRIPTOR* MsConfig, BYTE InterfaceNumber,
MSUSB_INTERFACE_DESCRIPTOR* NewMsInterface)
{
if (!MsConfig || !MsConfig->MsInterfaces)
return FALSE;
msusb_msinterface_free(MsConfig->MsInterfaces[InterfaceNumber]);
MsConfig->MsInterfaces[InterfaceNumber] = NewMsInterface;
return TRUE;
}
MSUSB_INTERFACE_DESCRIPTOR* msusb_msinterface_read(wStream* s)
{
MSUSB_INTERFACE_DESCRIPTOR* MsInterface = NULL;
if (!Stream_CheckAndLogRequiredCapacity(TAG, (s), 12))
return NULL;
MsInterface = msusb_msinterface_new();
if (!MsInterface)
return NULL;
Stream_Read_UINT16(s, MsInterface->Length);
Stream_Read_UINT16(s, MsInterface->NumberOfPipesExpected);
Stream_Read_UINT8(s, MsInterface->InterfaceNumber);
Stream_Read_UINT8(s, MsInterface->AlternateSetting);
Stream_Seek(s, 2);
Stream_Read_UINT32(s, MsInterface->NumberOfPipes);
MsInterface->InterfaceHandle = 0;
MsInterface->bInterfaceClass = 0;
MsInterface->bInterfaceSubClass = 0;
MsInterface->bInterfaceProtocol = 0;
MsInterface->InitCompleted = 0;
MsInterface->MsPipes = NULL;
if (MsInterface->NumberOfPipes > 0)
{
MsInterface->MsPipes = msusb_mspipes_read(s, MsInterface->NumberOfPipes);
if (!MsInterface->MsPipes)
goto out_error;
}
return MsInterface;
out_error:
msusb_msinterface_free(MsInterface);
return NULL;
}
BOOL msusb_msinterface_write(MSUSB_INTERFACE_DESCRIPTOR* MsInterface, wStream* out)
{
MSUSB_PIPE_DESCRIPTOR** MsPipes = NULL;
MSUSB_PIPE_DESCRIPTOR* MsPipe = NULL;
if (!MsInterface)
return FALSE;
if (!Stream_EnsureRemainingCapacity(out, 16 + MsInterface->NumberOfPipes * 20))
return FALSE;
/* Length */
Stream_Write_UINT16(out, MsInterface->Length);
/* InterfaceNumber */
Stream_Write_UINT8(out, MsInterface->InterfaceNumber);
/* AlternateSetting */
Stream_Write_UINT8(out, MsInterface->AlternateSetting);
/* bInterfaceClass */
Stream_Write_UINT8(out, MsInterface->bInterfaceClass);
/* bInterfaceSubClass */
Stream_Write_UINT8(out, MsInterface->bInterfaceSubClass);
/* bInterfaceProtocol */
Stream_Write_UINT8(out, MsInterface->bInterfaceProtocol);
/* Padding */
Stream_Write_UINT8(out, 0);
/* InterfaceHandle */
Stream_Write_UINT32(out, MsInterface->InterfaceHandle);
/* NumberOfPipes */
Stream_Write_UINT32(out, MsInterface->NumberOfPipes);
/* Pipes */
MsPipes = MsInterface->MsPipes;
for (UINT32 pnum = 0; pnum < MsInterface->NumberOfPipes; pnum++)
{
MsPipe = MsPipes[pnum];
/* MaximumPacketSize */
Stream_Write_UINT16(out, MsPipe->MaximumPacketSize);
/* EndpointAddress */
Stream_Write_UINT8(out, MsPipe->bEndpointAddress);
/* Interval */
Stream_Write_UINT8(out, MsPipe->bInterval);
/* PipeType */
Stream_Write_UINT32(out, MsPipe->PipeType);
/* PipeHandle */
Stream_Write_UINT32(out, MsPipe->PipeHandle);
/* MaximumTransferSize */
Stream_Write_UINT32(out, MsPipe->MaximumTransferSize);
/* PipeFlags */
Stream_Write_UINT32(out, MsPipe->PipeFlags);
}
return TRUE;
}
static MSUSB_INTERFACE_DESCRIPTOR** msusb_msinterface_read_list(wStream* s, UINT32 NumInterfaces)
{
MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces = NULL;
MsInterfaces =
(MSUSB_INTERFACE_DESCRIPTOR**)calloc(NumInterfaces, sizeof(MSUSB_INTERFACE_DESCRIPTOR*));
if (!MsInterfaces)
return NULL;
for (UINT32 inum = 0; inum < NumInterfaces; inum++)
{
MsInterfaces[inum] = msusb_msinterface_read(s);
if (!MsInterfaces[inum])
goto fail;
}
return MsInterfaces;
fail:
for (UINT32 inum = 0; inum < NumInterfaces; inum++)
msusb_msinterface_free(MsInterfaces[inum]);
free(MsInterfaces);
return NULL;
}
BOOL msusb_msconfig_write(MSUSB_CONFIG_DESCRIPTOR* MsConfg, wStream* out)
{
MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces = NULL;
MSUSB_INTERFACE_DESCRIPTOR* MsInterface = NULL;
if (!MsConfg)
return FALSE;
if (!Stream_EnsureRemainingCapacity(out, 8))
return FALSE;
/* ConfigurationHandle*/
Stream_Write_UINT32(out, MsConfg->ConfigurationHandle);
/* NumInterfaces*/
Stream_Write_UINT32(out, MsConfg->NumInterfaces);
/* Interfaces */
MsInterfaces = MsConfg->MsInterfaces;
for (UINT32 inum = 0; inum < MsConfg->NumInterfaces; inum++)
{
MsInterface = MsInterfaces[inum];
if (!msusb_msinterface_write(MsInterface, out))
return FALSE;
}
return TRUE;
}
MSUSB_CONFIG_DESCRIPTOR* msusb_msconfig_new(void)
{
return (MSUSB_CONFIG_DESCRIPTOR*)calloc(1, sizeof(MSUSB_CONFIG_DESCRIPTOR));
}
void msusb_msconfig_free(MSUSB_CONFIG_DESCRIPTOR* MsConfig)
{
if (MsConfig)
{
msusb_msinterface_free_list(MsConfig->MsInterfaces, MsConfig->NumInterfaces);
MsConfig->MsInterfaces = NULL;
free(MsConfig);
}
}
MSUSB_CONFIG_DESCRIPTOR* msusb_msconfig_read(wStream* s, UINT32 NumInterfaces)
{
MSUSB_CONFIG_DESCRIPTOR* MsConfig = NULL;
BYTE lenConfiguration = 0;
BYTE typeConfiguration = 0;
if (!Stream_CheckAndLogRequiredCapacityOfSize(TAG, (s), 3ULL + NumInterfaces, 2ULL))
return NULL;
MsConfig = msusb_msconfig_new();
if (!MsConfig)
goto fail;
MsConfig->MsInterfaces = msusb_msinterface_read_list(s, NumInterfaces);
if (!MsConfig->MsInterfaces)
goto fail;
Stream_Read_UINT8(s, lenConfiguration);
Stream_Read_UINT8(s, typeConfiguration);
if (lenConfiguration != 0x9 || typeConfiguration != 0x2)
{
WLog_ERR(TAG, "len and type must be 0x9 and 0x2 , but it is 0x%" PRIx8 " and 0x%" PRIx8 "",
lenConfiguration, typeConfiguration);
goto fail;
}
Stream_Read_UINT16(s, MsConfig->wTotalLength);
Stream_Seek(s, 1);
Stream_Read_UINT8(s, MsConfig->bConfigurationValue);
MsConfig->NumInterfaces = NumInterfaces;
return MsConfig;
fail:
msusb_msconfig_free(MsConfig);
return NULL;
}
void msusb_msconfig_dump(MSUSB_CONFIG_DESCRIPTOR* MsConfig)
{
MSUSB_INTERFACE_DESCRIPTOR** MsInterfaces = NULL;
MSUSB_INTERFACE_DESCRIPTOR* MsInterface = NULL;
MSUSB_PIPE_DESCRIPTOR** MsPipes = NULL;
MSUSB_PIPE_DESCRIPTOR* MsPipe = NULL;
WLog_INFO(TAG, "=================MsConfig:========================");
WLog_INFO(TAG, "wTotalLength:%" PRIu16 "", MsConfig->wTotalLength);
WLog_INFO(TAG, "bConfigurationValue:%" PRIu8 "", MsConfig->bConfigurationValue);
WLog_INFO(TAG, "ConfigurationHandle:0x%08" PRIx32 "", MsConfig->ConfigurationHandle);
WLog_INFO(TAG, "InitCompleted:%d", MsConfig->InitCompleted);
WLog_INFO(TAG, "MsOutSize:%d", MsConfig->MsOutSize);
WLog_INFO(TAG, "NumInterfaces:%" PRIu32 "", MsConfig->NumInterfaces);
MsInterfaces = MsConfig->MsInterfaces;
for (UINT32 inum = 0; inum < MsConfig->NumInterfaces; inum++)
{
MsInterface = MsInterfaces[inum];
WLog_INFO(TAG, " Interface: %" PRIu8 "", MsInterface->InterfaceNumber);
WLog_INFO(TAG, " Length: %" PRIu16 "", MsInterface->Length);
WLog_INFO(TAG, " NumberOfPipesExpected: %" PRIu16 "",
MsInterface->NumberOfPipesExpected);
WLog_INFO(TAG, " AlternateSetting: %" PRIu8 "", MsInterface->AlternateSetting);
WLog_INFO(TAG, " NumberOfPipes: %" PRIu32 "", MsInterface->NumberOfPipes);
WLog_INFO(TAG, " InterfaceHandle: 0x%08" PRIx32 "", MsInterface->InterfaceHandle);
WLog_INFO(TAG, " bInterfaceClass: 0x%02" PRIx8 "", MsInterface->bInterfaceClass);
WLog_INFO(TAG, " bInterfaceSubClass: 0x%02" PRIx8 "", MsInterface->bInterfaceSubClass);
WLog_INFO(TAG, " bInterfaceProtocol: 0x%02" PRIx8 "", MsInterface->bInterfaceProtocol);
WLog_INFO(TAG, " InitCompleted: %d", MsInterface->InitCompleted);
MsPipes = MsInterface->MsPipes;
for (UINT32 pnum = 0; pnum < MsInterface->NumberOfPipes; pnum++)
{
MsPipe = MsPipes[pnum];
WLog_INFO(TAG, " Pipe: %" PRIu32, pnum);
WLog_INFO(TAG, " MaximumPacketSize: 0x%04" PRIx16 "", MsPipe->MaximumPacketSize);
WLog_INFO(TAG, " MaximumTransferSize: 0x%08" PRIx32 "",
MsPipe->MaximumTransferSize);
WLog_INFO(TAG, " PipeFlags: 0x%08" PRIx32 "", MsPipe->PipeFlags);
WLog_INFO(TAG, " PipeHandle: 0x%08" PRIx32 "", MsPipe->PipeHandle);
WLog_INFO(TAG, " bEndpointAddress: 0x%02" PRIx8 "", MsPipe->bEndpointAddress);
WLog_INFO(TAG, " bInterval: %" PRIu8 "", MsPipe->bInterval);
WLog_INFO(TAG, " PipeType: 0x%02" PRIx8 "", MsPipe->PipeType);
WLog_INFO(TAG, " InitCompleted: %d", MsPipe->InitCompleted);
}
}
WLog_INFO(TAG, "==================================================");
}