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freerdp/channels/rdpdr/server/rdpdr_main.c

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v2.10.0
2023-05-09 21:29:50 +00:00
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Device Redirection Virtual Channel Extension
*
* Copyright 2014 Dell Software <Mike.McDonald@software.dell.com>
* Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
* Copyright 2015 Thincast Technologies GmbH
* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <winpr/crt.h>
#include <winpr/nt.h>
#include <winpr/print.h>
#include <winpr/stream.h>
#include <freerdp/channels/log.h>
#include "rdpdr_main.h"
#define TAG "rdpdr.server"
static UINT32 g_ClientId = 0;
static RDPDR_IRP* rdpdr_server_irp_new()
{
RDPDR_IRP* irp;
irp = (RDPDR_IRP*)calloc(1, sizeof(RDPDR_IRP));
return irp;
}
static void rdpdr_server_irp_free(RDPDR_IRP* irp)
{
free(irp);
}
static BOOL rdpdr_server_enqueue_irp(RdpdrServerContext* context, RDPDR_IRP* irp)
{
return ListDictionary_Add(context->priv->IrpList, (void*)(size_t)irp->CompletionId, irp);
}
static RDPDR_IRP* rdpdr_server_dequeue_irp(RdpdrServerContext* context, UINT32 completionId)
{
RDPDR_IRP* irp;
irp = (RDPDR_IRP*)ListDictionary_Remove(context->priv->IrpList, (void*)(size_t)completionId);
return irp;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_announce_request(RdpdrServerContext* context)
{
wStream* s;
BOOL status;
RDPDR_HEADER header;
ULONG written;
WLog_DBG(TAG, "RdpdrServerSendAnnounceRequest");
header.Component = RDPDR_CTYP_CORE;
header.PacketId = PAKID_CORE_SERVER_ANNOUNCE;
s = Stream_New(NULL, RDPDR_HEADER_LENGTH + 8);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
Stream_Write_UINT16(s, header.Component); /* Component (2 bytes) */
Stream_Write_UINT16(s, header.PacketId); /* PacketId (2 bytes) */
Stream_Write_UINT16(s, context->priv->VersionMajor); /* VersionMajor (2 bytes) */
Stream_Write_UINT16(s, context->priv->VersionMinor); /* VersionMinor (2 bytes) */
Stream_Write_UINT32(s, context->priv->ClientId); /* ClientId (4 bytes) */
Stream_SealLength(s);
winpr_HexDump(TAG, WLOG_DEBUG, Stream_Buffer(s), Stream_Length(s));
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_receive_announce_response(RdpdrServerContext* context, wStream* s,
RDPDR_HEADER* header)
{
UINT32 ClientId;
UINT16 VersionMajor;
UINT16 VersionMinor;
if (Stream_GetRemainingLength(s) < 8)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT16(s, VersionMajor); /* VersionMajor (2 bytes) */
Stream_Read_UINT16(s, VersionMinor); /* VersionMinor (2 bytes) */
Stream_Read_UINT32(s, ClientId); /* ClientId (4 bytes) */
WLog_DBG(TAG,
"Client Announce Response: VersionMajor: 0x%08" PRIX16 " VersionMinor: 0x%04" PRIX16
" ClientId: 0x%08" PRIX32 "",
VersionMajor, VersionMinor, ClientId);
context->priv->ClientId = ClientId;
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_receive_client_name_request(RdpdrServerContext* context, wStream* s,
RDPDR_HEADER* header)
{
UINT32 UnicodeFlag;
UINT32 ComputerNameLen;
if (Stream_GetRemainingLength(s) < 12)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, UnicodeFlag); /* UnicodeFlag (4 bytes) */
Stream_Seek_UINT32(s); /* CodePage (4 bytes), MUST be set to zero */
Stream_Read_UINT32(s, ComputerNameLen); /* ComputerNameLen (4 bytes) */
/* UnicodeFlag is either 0 or 1, the other 31 bits must be ignored.
*/
UnicodeFlag = UnicodeFlag & 0x00000001;
/**
* Caution: ComputerNameLen is given *bytes*,
* not in characters, including the NULL terminator!
*/
if (UnicodeFlag)
{
if ((ComputerNameLen % 2) || ComputerNameLen > 512 || ComputerNameLen < 2)
{
WLog_ERR(TAG, "invalid unicode computer name length: %" PRIu32 "", ComputerNameLen);
return ERROR_INVALID_DATA;
}
}
else
{
if (ComputerNameLen > 256 || ComputerNameLen < 1)
{
WLog_ERR(TAG, "invalid ascii computer name length: %" PRIu32 "", ComputerNameLen);
return ERROR_INVALID_DATA;
}
}
if (Stream_GetRemainingLength(s) < ComputerNameLen)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
/* ComputerName must be null terminated, check if it really is */
if (Stream_Pointer(s)[ComputerNameLen - 1] ||
(UnicodeFlag && Stream_Pointer(s)[ComputerNameLen - 2]))
{
WLog_ERR(TAG, "computer name must be null terminated");
return ERROR_INVALID_DATA;
}
if (context->priv->ClientComputerName)
{
free(context->priv->ClientComputerName);
context->priv->ClientComputerName = NULL;
}
if (UnicodeFlag)
{
if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*)Stream_Pointer(s), -1,
&(context->priv->ClientComputerName), 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert client computer name");
return ERROR_INVALID_DATA;
}
}
else
{
context->priv->ClientComputerName = _strdup((char*)Stream_Pointer(s));
if (!context->priv->ClientComputerName)
{
WLog_ERR(TAG, "failed to duplicate client computer name");
return CHANNEL_RC_NO_MEMORY;
}
}
Stream_Seek(s, ComputerNameLen);
WLog_DBG(TAG, "ClientComputerName: %s", context->priv->ClientComputerName);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_read_capability_set_header(wStream* s, RDPDR_CAPABILITY_HEADER* header)
{
if (Stream_GetRemainingLength(s) < 8)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT16(s, header->CapabilityType); /* CapabilityType (2 bytes) */
Stream_Read_UINT16(s, header->CapabilityLength); /* CapabilityLength (2 bytes) */
Stream_Read_UINT32(s, header->Version); /* Version (4 bytes) */
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_write_capability_set_header(wStream* s, RDPDR_CAPABILITY_HEADER* header)
{
if (!Stream_EnsureRemainingCapacity(s, 8))
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Write_UINT16(s, header->CapabilityType); /* CapabilityType (2 bytes) */
Stream_Write_UINT16(s, header->CapabilityLength); /* CapabilityLength (2 bytes) */
Stream_Write_UINT32(s, header->Version); /* Version (4 bytes) */
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_read_general_capability_set(RdpdrServerContext* context, wStream* s,
RDPDR_CAPABILITY_HEADER* header)
{
UINT32 ioCode1;
UINT32 extraFlags1;
UINT32 extendedPdu;
UINT16 VersionMajor;
UINT16 VersionMinor;
UINT32 SpecialTypeDeviceCap;
if (Stream_GetRemainingLength(s) < 32)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Seek_UINT32(s); /* osType (4 bytes), ignored on receipt */
Stream_Seek_UINT32(s); /* osVersion (4 bytes), unused and must be set to zero */
Stream_Read_UINT16(s, VersionMajor); /* protocolMajorVersion (2 bytes) */
Stream_Read_UINT16(s, VersionMinor); /* protocolMinorVersion (2 bytes) */
Stream_Read_UINT32(s, ioCode1); /* ioCode1 (4 bytes) */
Stream_Seek_UINT32(s); /* ioCode2 (4 bytes), must be set to zero, reserved for future use */
Stream_Read_UINT32(s, extendedPdu); /* extendedPdu (4 bytes) */
Stream_Read_UINT32(s, extraFlags1); /* extraFlags1 (4 bytes) */
Stream_Seek_UINT32(s); /* extraFlags2 (4 bytes), must be set to zero, reserved for future use */
if (header->Version == GENERAL_CAPABILITY_VERSION_02)
{
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, SpecialTypeDeviceCap); /* SpecialTypeDeviceCap (4 bytes) */
}
context->priv->UserLoggedOnPdu = (extendedPdu & RDPDR_USER_LOGGEDON_PDU) ? TRUE : FALSE;
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_write_general_capability_set(RdpdrServerContext* context, wStream* s)
{
UINT32 ioCode1;
UINT32 extendedPdu;
UINT32 extraFlags1;
UINT32 SpecialTypeDeviceCap;
RDPDR_CAPABILITY_HEADER header;
header.CapabilityType = CAP_GENERAL_TYPE;
header.CapabilityLength = RDPDR_CAPABILITY_HEADER_LENGTH + 36;
header.Version = GENERAL_CAPABILITY_VERSION_02;
ioCode1 = 0;
ioCode1 |= RDPDR_IRP_MJ_CREATE; /* always set */
ioCode1 |= RDPDR_IRP_MJ_CLEANUP; /* always set */
ioCode1 |= RDPDR_IRP_MJ_CLOSE; /* always set */
ioCode1 |= RDPDR_IRP_MJ_READ; /* always set */
ioCode1 |= RDPDR_IRP_MJ_WRITE; /* always set */
ioCode1 |= RDPDR_IRP_MJ_FLUSH_BUFFERS; /* always set */
ioCode1 |= RDPDR_IRP_MJ_SHUTDOWN; /* always set */
ioCode1 |= RDPDR_IRP_MJ_DEVICE_CONTROL; /* always set */
ioCode1 |= RDPDR_IRP_MJ_QUERY_VOLUME_INFORMATION; /* always set */
ioCode1 |= RDPDR_IRP_MJ_SET_VOLUME_INFORMATION; /* always set */
ioCode1 |= RDPDR_IRP_MJ_QUERY_INFORMATION; /* always set */
ioCode1 |= RDPDR_IRP_MJ_SET_INFORMATION; /* always set */
ioCode1 |= RDPDR_IRP_MJ_DIRECTORY_CONTROL; /* always set */
ioCode1 |= RDPDR_IRP_MJ_LOCK_CONTROL; /* always set */
ioCode1 |= RDPDR_IRP_MJ_QUERY_SECURITY; /* optional */
ioCode1 |= RDPDR_IRP_MJ_SET_SECURITY; /* optional */
extendedPdu = 0;
extendedPdu |= RDPDR_CLIENT_DISPLAY_NAME_PDU; /* always set */
extendedPdu |= RDPDR_DEVICE_REMOVE_PDUS; /* optional */
if (context->priv->UserLoggedOnPdu)
extendedPdu |= RDPDR_USER_LOGGEDON_PDU; /* optional */
extraFlags1 = 0;
extraFlags1 |= ENABLE_ASYNCIO; /* optional */
SpecialTypeDeviceCap = 0;
if (!Stream_EnsureRemainingCapacity(s, header.CapabilityLength))
{
WLog_ERR(TAG, "Stream_EnsureRemainingCapacity failed!");
return CHANNEL_RC_NO_MEMORY;
}
rdpdr_server_write_capability_set_header(s, &header);
Stream_Write_UINT32(s, 0); /* osType (4 bytes), ignored on receipt */
Stream_Write_UINT32(s, 0); /* osVersion (4 bytes), unused and must be set to zero */
Stream_Write_UINT16(s, context->priv->VersionMajor); /* protocolMajorVersion (2 bytes) */
Stream_Write_UINT16(s, context->priv->VersionMinor); /* protocolMinorVersion (2 bytes) */
Stream_Write_UINT32(s, ioCode1); /* ioCode1 (4 bytes) */
Stream_Write_UINT32(s, 0); /* ioCode2 (4 bytes), must be set to zero, reserved for future use */
Stream_Write_UINT32(s, extendedPdu); /* extendedPdu (4 bytes) */
Stream_Write_UINT32(s, extraFlags1); /* extraFlags1 (4 bytes) */
Stream_Write_UINT32(
s, 0); /* extraFlags2 (4 bytes), must be set to zero, reserved for future use */
Stream_Write_UINT32(s, SpecialTypeDeviceCap); /* SpecialTypeDeviceCap (4 bytes) */
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_read_printer_capability_set(RdpdrServerContext* context, wStream* s,
RDPDR_CAPABILITY_HEADER* header)
{
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_write_printer_capability_set(RdpdrServerContext* context, wStream* s)
{
RDPDR_CAPABILITY_HEADER header;
header.CapabilityType = CAP_PRINTER_TYPE;
header.CapabilityLength = RDPDR_CAPABILITY_HEADER_LENGTH;
header.Version = PRINT_CAPABILITY_VERSION_01;
if (!Stream_EnsureRemainingCapacity(s, header.CapabilityLength))
{
WLog_ERR(TAG, "Stream_EnsureRemainingCapacity failed!");
return CHANNEL_RC_NO_MEMORY;
}
return rdpdr_server_write_capability_set_header(s, &header);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_read_port_capability_set(RdpdrServerContext* context, wStream* s,
RDPDR_CAPABILITY_HEADER* header)
{
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_write_port_capability_set(RdpdrServerContext* context, wStream* s)
{
RDPDR_CAPABILITY_HEADER header;
header.CapabilityType = CAP_PORT_TYPE;
header.CapabilityLength = RDPDR_CAPABILITY_HEADER_LENGTH;
header.Version = PORT_CAPABILITY_VERSION_01;
if (!Stream_EnsureRemainingCapacity(s, header.CapabilityLength))
{
WLog_ERR(TAG, "Stream_EnsureRemainingCapacity failed!");
return CHANNEL_RC_NO_MEMORY;
}
return rdpdr_server_write_capability_set_header(s, &header);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_read_drive_capability_set(RdpdrServerContext* context, wStream* s,
RDPDR_CAPABILITY_HEADER* header)
{
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_write_drive_capability_set(RdpdrServerContext* context, wStream* s)
{
RDPDR_CAPABILITY_HEADER header;
header.CapabilityType = CAP_DRIVE_TYPE;
header.CapabilityLength = RDPDR_CAPABILITY_HEADER_LENGTH;
header.Version = DRIVE_CAPABILITY_VERSION_02;
if (!Stream_EnsureRemainingCapacity(s, header.CapabilityLength))
{
WLog_ERR(TAG, "Stream_EnsureRemainingCapacity failed!");
return CHANNEL_RC_NO_MEMORY;
}
return rdpdr_server_write_capability_set_header(s, &header);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_read_smartcard_capability_set(RdpdrServerContext* context, wStream* s,
RDPDR_CAPABILITY_HEADER* header)
{
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_write_smartcard_capability_set(RdpdrServerContext* context, wStream* s)
{
RDPDR_CAPABILITY_HEADER header;
header.CapabilityType = CAP_SMARTCARD_TYPE;
header.CapabilityLength = RDPDR_CAPABILITY_HEADER_LENGTH;
header.Version = SMARTCARD_CAPABILITY_VERSION_01;
if (!Stream_EnsureRemainingCapacity(s, header.CapabilityLength))
{
WLog_ERR(TAG, "Stream_EnsureRemainingCapacity failed!");
return CHANNEL_RC_OK;
}
return rdpdr_server_write_capability_set_header(s, &header);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_core_capability_request(RdpdrServerContext* context)
{
wStream* s;
BOOL status;
RDPDR_HEADER header;
UINT16 numCapabilities;
ULONG written;
UINT error;
WLog_DBG(TAG, "RdpdrServerSendCoreCapabilityRequest");
header.Component = RDPDR_CTYP_CORE;
header.PacketId = PAKID_CORE_SERVER_CAPABILITY;
numCapabilities = 1;
if (context->supportsDrives)
numCapabilities++;
if (context->supportsPorts)
numCapabilities++;
if (context->supportsPrinters)
numCapabilities++;
if (context->supportsSmartcards)
numCapabilities++;
s = Stream_New(NULL, RDPDR_HEADER_LENGTH + 512);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
Stream_Write_UINT16(s, header.Component); /* Component (2 bytes) */
Stream_Write_UINT16(s, header.PacketId); /* PacketId (2 bytes) */
Stream_Write_UINT16(s, numCapabilities); /* numCapabilities (2 bytes) */
Stream_Write_UINT16(s, 0); /* Padding (2 bytes) */
if ((error = rdpdr_server_write_general_capability_set(context, s)))
{
WLog_ERR(TAG, "rdpdr_server_write_general_capability_set failed with error %" PRIu32 "!",
error);
goto out;
}
if (context->supportsDrives)
{
if ((error = rdpdr_server_write_drive_capability_set(context, s)))
{
WLog_ERR(TAG, "rdpdr_server_write_drive_capability_set failed with error %" PRIu32 "!",
error);
goto out;
}
}
if (context->supportsPorts)
{
if ((error = rdpdr_server_write_port_capability_set(context, s)))
{
WLog_ERR(TAG, "rdpdr_server_write_port_capability_set failed with error %" PRIu32 "!",
error);
goto out;
}
}
if (context->supportsPrinters)
{
if ((error = rdpdr_server_write_printer_capability_set(context, s)))
{
WLog_ERR(TAG,
"rdpdr_server_write_printer_capability_set failed with error %" PRIu32 "!",
error);
goto out;
}
}
if (context->supportsSmartcards)
{
if ((error = rdpdr_server_write_smartcard_capability_set(context, s)))
{
WLog_ERR(TAG,
"rdpdr_server_write_printer_capability_set failed with error %" PRIu32 "!",
error);
goto out;
}
}
Stream_SealLength(s);
winpr_HexDump(TAG, WLOG_DEBUG, Stream_Buffer(s), Stream_Length(s));
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
out:
Stream_Free(s, TRUE);
return error;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_receive_core_capability_response(RdpdrServerContext* context, wStream* s,
RDPDR_HEADER* header)
{
int i;
UINT status;
UINT16 numCapabilities;
RDPDR_CAPABILITY_HEADER capabilityHeader;
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT16(s, numCapabilities); /* numCapabilities (2 bytes) */
Stream_Seek_UINT16(s); /* Padding (2 bytes) */
for (i = 0; i < numCapabilities; i++)
{
if ((status = rdpdr_server_read_capability_set_header(s, &capabilityHeader)))
{
WLog_ERR(TAG, "rdpdr_server_read_capability_set_header failed with error %" PRIu32 "!",
status);
return status;
}
switch (capabilityHeader.CapabilityType)
{
case CAP_GENERAL_TYPE:
if ((status =
rdpdr_server_read_general_capability_set(context, s, &capabilityHeader)))
{
WLog_ERR(TAG,
"rdpdr_server_read_general_capability_set failed with error %" PRIu32
"!",
status);
return status;
}
break;
case CAP_PRINTER_TYPE:
if ((status =
rdpdr_server_read_printer_capability_set(context, s, &capabilityHeader)))
{
WLog_ERR(TAG,
"rdpdr_server_read_printer_capability_set failed with error %" PRIu32
"!",
status);
return status;
}
break;
case CAP_PORT_TYPE:
if ((status = rdpdr_server_read_port_capability_set(context, s, &capabilityHeader)))
{
WLog_ERR(TAG,
"rdpdr_server_read_port_capability_set failed with error %" PRIu32 "!",
status);
return status;
}
break;
case CAP_DRIVE_TYPE:
if ((status =
rdpdr_server_read_drive_capability_set(context, s, &capabilityHeader)))
{
WLog_ERR(TAG,
"rdpdr_server_read_drive_capability_set failed with error %" PRIu32
"!",
status);
return status;
}
break;
case CAP_SMARTCARD_TYPE:
if ((status =
rdpdr_server_read_smartcard_capability_set(context, s, &capabilityHeader)))
{
WLog_ERR(TAG,
"rdpdr_server_read_smartcard_capability_set failed with error %" PRIu32
"!",
status);
return status;
}
break;
default:
WLog_DBG(TAG, "Unknown capabilityType %" PRIu16 "",
capabilityHeader.CapabilityType);
Stream_Seek(s, capabilityHeader.CapabilityLength - RDPDR_CAPABILITY_HEADER_LENGTH);
return ERROR_INVALID_DATA;
break;
}
}
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_client_id_confirm(RdpdrServerContext* context)
{
wStream* s;
BOOL status;
RDPDR_HEADER header;
ULONG written;
WLog_DBG(TAG, "RdpdrServerSendClientIdConfirm");
header.Component = RDPDR_CTYP_CORE;
header.PacketId = PAKID_CORE_CLIENTID_CONFIRM;
s = Stream_New(NULL, RDPDR_HEADER_LENGTH + 8);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
Stream_Write_UINT16(s, header.Component); /* Component (2 bytes) */
Stream_Write_UINT16(s, header.PacketId); /* PacketId (2 bytes) */
Stream_Write_UINT16(s, context->priv->VersionMajor); /* VersionMajor (2 bytes) */
Stream_Write_UINT16(s, context->priv->VersionMinor); /* VersionMinor (2 bytes) */
Stream_Write_UINT32(s, context->priv->ClientId); /* ClientId (4 bytes) */
Stream_SealLength(s);
winpr_HexDump(TAG, WLOG_DEBUG, Stream_Buffer(s), Stream_Length(s));
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_receive_device_list_announce_request(RdpdrServerContext* context,
wStream* s, RDPDR_HEADER* header)
{
UINT32 i;
UINT32 DeviceCount;
UINT32 DeviceType;
UINT32 DeviceId;
char PreferredDosName[9];
UINT32 DeviceDataLength;
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, DeviceCount); /* DeviceCount (4 bytes) */
WLog_DBG(TAG, "DeviceCount: %" PRIu32 "", DeviceCount);
for (i = 0; i < DeviceCount; i++)
{
ZeroMemory(PreferredDosName, sizeof(PreferredDosName));
if (Stream_GetRemainingLength(s) < 20)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, DeviceType); /* DeviceType (4 bytes) */
Stream_Read_UINT32(s, DeviceId); /* DeviceId (4 bytes) */
Stream_Read(s, PreferredDosName, 8); /* PreferredDosName (8 bytes) */
Stream_Read_UINT32(s, DeviceDataLength); /* DeviceDataLength (4 bytes) */
if (Stream_GetRemainingLength(s) < DeviceDataLength)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
WLog_DBG(TAG, "Device %d Name: %s Id: 0x%08" PRIX32 " DataLength: %" PRIu32 "", i,
PreferredDosName, DeviceId, DeviceDataLength);
switch (DeviceType)
{
case RDPDR_DTYP_FILESYSTEM:
if (context->supportsDrives)
{
IFCALL(context->OnDriveCreate, context, DeviceId, PreferredDosName);
}
break;
case RDPDR_DTYP_PRINT:
if (context->supportsPrinters)
{
IFCALL(context->OnPrinterCreate, context, DeviceId, PreferredDosName);
}
break;
case RDPDR_DTYP_SERIAL:
case RDPDR_DTYP_PARALLEL:
if (context->supportsPorts)
{
IFCALL(context->OnPortCreate, context, DeviceId, PreferredDosName);
}
break;
case RDPDR_DTYP_SMARTCARD:
if (context->supportsSmartcards)
{
IFCALL(context->OnSmartcardCreate, context, DeviceId, PreferredDosName);
}
break;
default:
break;
}
Stream_Seek(s, DeviceDataLength);
}
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_receive_device_list_remove_request(RdpdrServerContext* context, wStream* s,
RDPDR_HEADER* header)
{
UINT32 i;
UINT32 DeviceCount;
UINT32 DeviceType;
UINT32 DeviceId;
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, DeviceCount); /* DeviceCount (4 bytes) */
WLog_DBG(TAG, "DeviceCount: %" PRIu32 "", DeviceCount);
for (i = 0; i < DeviceCount; i++)
{
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, DeviceId); /* DeviceId (4 bytes) */
WLog_DBG(TAG, "Device %d Id: 0x%08" PRIX32 "", i, DeviceId);
DeviceType = 0; /* TODO: Save the device type on the announce request. */
switch (DeviceType)
{
case RDPDR_DTYP_FILESYSTEM:
if (context->supportsDrives)
{
IFCALL(context->OnDriveDelete, context, DeviceId);
}
break;
case RDPDR_DTYP_PRINT:
if (context->supportsPrinters)
{
IFCALL(context->OnPrinterDelete, context, DeviceId);
}
break;
case RDPDR_DTYP_SERIAL:
case RDPDR_DTYP_PARALLEL:
if (context->supportsPorts)
{
IFCALL(context->OnPortDelete, context, DeviceId);
}
break;
case RDPDR_DTYP_SMARTCARD:
if (context->supportsSmartcards)
{
IFCALL(context->OnSmartcardDelete, context, DeviceId);
}
break;
default:
break;
}
}
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_receive_device_io_completion(RdpdrServerContext* context, wStream* s,
RDPDR_HEADER* header)
{
UINT32 deviceId;
UINT32 completionId;
UINT32 ioStatus;
RDPDR_IRP* irp;
UINT error = CHANNEL_RC_OK;
if (Stream_GetRemainingLength(s) < 12)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, deviceId);
Stream_Read_UINT32(s, completionId);
Stream_Read_UINT32(s, ioStatus);
WLog_DBG(TAG, "deviceId=%" PRIu32 ", completionId=0x%" PRIx32 ", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
irp = rdpdr_server_dequeue_irp(context, completionId);
if (!irp)
{
WLog_ERR(TAG, "IRP not found for completionId=0x%" PRIx32 "", completionId);
return ERROR_INTERNAL_ERROR;
}
/* Invoke the callback. */
if (irp->Callback)
{
error = (*irp->Callback)(context, s, irp, deviceId, completionId, ioStatus);
}
return error;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_user_logged_on(RdpdrServerContext* context)
{
wStream* s;
BOOL status;
RDPDR_HEADER header;
ULONG written;
WLog_DBG(TAG, "RdpdrServerSendUserLoggedOn");
header.Component = RDPDR_CTYP_CORE;
header.PacketId = PAKID_CORE_USER_LOGGEDON;
s = Stream_New(NULL, RDPDR_HEADER_LENGTH);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
Stream_Write_UINT16(s, header.Component); /* Component (2 bytes) */
Stream_Write_UINT16(s, header.PacketId); /* PacketId (2 bytes) */
Stream_SealLength(s);
winpr_HexDump(TAG, WLOG_DEBUG, Stream_Buffer(s), Stream_Length(s));
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_receive_pdu(RdpdrServerContext* context, wStream* s, RDPDR_HEADER* header)
{
UINT error = CHANNEL_RC_OK;
WLog_DBG(TAG, "RdpdrServerReceivePdu: Component: 0x%04" PRIX16 " PacketId: 0x%04" PRIX16 "",
header->Component, header->PacketId);
winpr_HexDump(TAG, WLOG_DEBUG, Stream_Buffer(s), Stream_Length(s));
if (header->Component == RDPDR_CTYP_CORE)
{
switch (header->PacketId)
{
case PAKID_CORE_CLIENTID_CONFIRM:
if ((error = rdpdr_server_receive_announce_response(context, s, header)))
{
WLog_ERR(TAG,
"rdpdr_server_receive_announce_response failed with error %" PRIu32
"!",
error);
return error;
}
break;
case PAKID_CORE_CLIENT_NAME:
if ((error = rdpdr_server_receive_client_name_request(context, s, header)))
{
WLog_ERR(TAG,
"rdpdr_server_receive_client_name_request failed with error %" PRIu32
"!",
error);
return error;
}
if ((error = rdpdr_server_send_core_capability_request(context)))
{
WLog_ERR(TAG,
"rdpdr_server_send_core_capability_request failed with error %" PRIu32
"!",
error);
return error;
}
if ((error = rdpdr_server_send_client_id_confirm(context)))
{
WLog_ERR(TAG,
"rdpdr_server_send_client_id_confirm failed with error %" PRIu32 "!",
error);
return error;
}
break;
case PAKID_CORE_CLIENT_CAPABILITY:
if ((error = rdpdr_server_receive_core_capability_response(context, s, header)))
{
WLog_ERR(
TAG,
"rdpdr_server_receive_core_capability_response failed with error %" PRIu32
"!",
error);
return error;
}
if (context->priv->UserLoggedOnPdu)
if ((error = rdpdr_server_send_user_logged_on(context)))
{
WLog_ERR(TAG,
"rdpdr_server_send_user_logged_on failed with error %" PRIu32 "!",
error);
return error;
}
break;
case PAKID_CORE_DEVICELIST_ANNOUNCE:
if ((error = rdpdr_server_receive_device_list_announce_request(context, s, header)))
{
WLog_ERR(TAG,
"rdpdr_server_receive_device_list_announce_request failed with error "
"%" PRIu32 "!",
error);
return error;
}
break;
case PAKID_CORE_DEVICE_REPLY:
break;
case PAKID_CORE_DEVICE_IOREQUEST:
break;
case PAKID_CORE_DEVICE_IOCOMPLETION:
if ((error = rdpdr_server_receive_device_io_completion(context, s, header)))
{
WLog_ERR(TAG,
"rdpdr_server_receive_device_io_completion failed with error %" PRIu32
"!",
error);
return error;
}
break;
case PAKID_CORE_DEVICELIST_REMOVE:
if ((error = rdpdr_server_receive_device_list_remove_request(context, s, header)))
{
WLog_ERR(TAG,
"rdpdr_server_receive_device_io_completion failed with error %" PRIu32
"!",
error);
return error;
}
break;
default:
break;
}
}
else if (header->Component == RDPDR_CTYP_PRN)
{
switch (header->PacketId)
{
case PAKID_PRN_CACHE_DATA:
break;
case PAKID_PRN_USING_XPS:
break;
default:
break;
}
}
else
{
WLog_WARN(TAG, "Unknown RDPDR_HEADER.Component: 0x%04" PRIX16 "", header->Component);
return ERROR_INVALID_DATA;
}
return error;
}
static DWORD WINAPI rdpdr_server_thread(LPVOID arg)
{
wStream* s;
DWORD status;
DWORD nCount;
void* buffer;
HANDLE events[8];
RDPDR_HEADER header;
HANDLE ChannelEvent;
DWORD BytesReturned;
RdpdrServerContext* context;
UINT error;
context = (RdpdrServerContext*)arg;
buffer = NULL;
BytesReturned = 0;
ChannelEvent = NULL;
s = Stream_New(NULL, 4096);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
error = CHANNEL_RC_NO_MEMORY;
goto out;
}
if (WTSVirtualChannelQuery(context->priv->ChannelHandle, WTSVirtualEventHandle, &buffer,
&BytesReturned) == TRUE)
{
if (BytesReturned == sizeof(HANDLE))
CopyMemory(&ChannelEvent, buffer, sizeof(HANDLE));
WTSFreeMemory(buffer);
}
nCount = 0;
events[nCount++] = ChannelEvent;
events[nCount++] = context->priv->StopEvent;
if ((error = rdpdr_server_send_announce_request(context)))
{
WLog_ERR(TAG, "rdpdr_server_send_announce_request failed with error %" PRIu32 "!", error);
goto out_stream;
}
while (1)
{
BytesReturned = 0;
status = WaitForMultipleObjects(nCount, events, FALSE, INFINITE);
if (status == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForMultipleObjects failed with error %" PRIu32 "!", error);
goto out_stream;
}
status = WaitForSingleObject(context->priv->StopEvent, 0);
if (status == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "!", error);
goto out_stream;
}
if (status == WAIT_OBJECT_0)
break;
if (!WTSVirtualChannelRead(context->priv->ChannelHandle, 0, (PCHAR)Stream_Buffer(s),
Stream_Capacity(s), &BytesReturned))
{
WLog_ERR(TAG, "WTSVirtualChannelRead failed!");
error = ERROR_INTERNAL_ERROR;
break;
}
if (BytesReturned >= RDPDR_HEADER_LENGTH)
{
Stream_SetPosition(s, 0);
Stream_SetLength(s, BytesReturned);
while (Stream_GetRemainingLength(s) >= RDPDR_HEADER_LENGTH)
{
Stream_Read_UINT16(s, header.Component); /* Component (2 bytes) */
Stream_Read_UINT16(s, header.PacketId); /* PacketId (2 bytes) */
if ((error = rdpdr_server_receive_pdu(context, s, &header)))
{
WLog_ERR(TAG, "rdpdr_server_receive_pdu failed with error %" PRIu32 "!", error);
goto out_stream;
}
}
}
}
out_stream:
Stream_Free(s, TRUE);
out:
if (error && context->rdpcontext)
setChannelError(context->rdpcontext, error, "rdpdr_server_thread reported an error");
ExitThread(error);
return error;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_start(RdpdrServerContext* context)
{
context->priv->ChannelHandle =
WTSVirtualChannelOpen(context->vcm, WTS_CURRENT_SESSION, "rdpdr");
if (!context->priv->ChannelHandle)
{
WLog_ERR(TAG, "WTSVirtualChannelOpen failed!");
return CHANNEL_RC_BAD_CHANNEL;
}
if (!(context->priv->StopEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
{
WLog_ERR(TAG, "CreateEvent failed!");
return ERROR_INTERNAL_ERROR;
}
if (!(context->priv->Thread =
CreateThread(NULL, 0, rdpdr_server_thread, (void*)context, 0, NULL)))
{
WLog_ERR(TAG, "CreateThread failed!");
CloseHandle(context->priv->StopEvent);
context->priv->StopEvent = NULL;
return ERROR_INTERNAL_ERROR;
}
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_stop(RdpdrServerContext* context)
{
UINT error;
if (context->priv->StopEvent)
{
SetEvent(context->priv->StopEvent);
if (WaitForSingleObject(context->priv->Thread, INFINITE) == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForSingleObject failed with error %" PRIu32 "!", error);
return error;
}
CloseHandle(context->priv->Thread);
context->priv->Thread = NULL;
CloseHandle(context->priv->StopEvent);
context->priv->StopEvent = NULL;
}
return CHANNEL_RC_OK;
}
static void rdpdr_server_write_device_iorequest(wStream* s, UINT32 deviceId, UINT32 fileId,
UINT32 completionId, UINT32 majorFunction,
UINT32 minorFunction)
{
Stream_Write_UINT16(s, RDPDR_CTYP_CORE); /* Component (2 bytes) */
Stream_Write_UINT16(s, PAKID_CORE_DEVICE_IOREQUEST); /* PacketId (2 bytes) */
Stream_Write_UINT32(s, deviceId); /* DeviceId (4 bytes) */
Stream_Write_UINT32(s, fileId); /* FileId (4 bytes) */
Stream_Write_UINT32(s, completionId); /* CompletionId (4 bytes) */
Stream_Write_UINT32(s, majorFunction); /* MajorFunction (4 bytes) */
Stream_Write_UINT32(s, minorFunction); /* MinorFunction (4 bytes) */
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_read_file_directory_information(wStream* s,
FILE_DIRECTORY_INFORMATION* fdi)
{
UINT32 fileNameLength;
ZeroMemory(fdi, sizeof(FILE_DIRECTORY_INFORMATION));
if (Stream_GetRemainingLength(s) < 64)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, fdi->NextEntryOffset); /* NextEntryOffset (4 bytes) */
Stream_Read_UINT32(s, fdi->FileIndex); /* FileIndex (4 bytes) */
Stream_Read_UINT64(s, fdi->CreationTime); /* CreationTime (8 bytes) */
Stream_Read_UINT64(s, fdi->LastAccessTime); /* LastAccessTime (8 bytes) */
Stream_Read_UINT64(s, fdi->LastWriteTime); /* LastWriteTime (8 bytes) */
Stream_Read_UINT64(s, fdi->ChangeTime); /* ChangeTime (8 bytes) */
Stream_Read_UINT64(s, fdi->EndOfFile); /* EndOfFile (8 bytes) */
Stream_Read_UINT64(s, fdi->AllocationSize); /* AllocationSize (8 bytes) */
Stream_Read_UINT32(s, fdi->FileAttributes); /* FileAttributes (4 bytes) */
Stream_Read_UINT32(s, fileNameLength); /* FileNameLength (4 bytes) */
if (Stream_GetRemainingLength(s) < fileNameLength)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
WideCharToMultiByte(CP_ACP, 0, (LPCWSTR)Stream_Pointer(s), fileNameLength / 2, fdi->FileName,
sizeof(fdi->FileName), NULL, NULL);
Stream_Seek(s, fileNameLength);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_device_create_request(RdpdrServerContext* context, UINT32 deviceId,
UINT32 completionId, const char* path,
UINT32 desiredAccess, UINT32 createOptions,
UINT32 createDisposition)
{
UINT32 pathLength;
ULONG written;
BOOL status;
wStream* s;
WLog_DBG(TAG,
"RdpdrServerSendDeviceCreateRequest: deviceId=%" PRIu32
", path=%s, desiredAccess=0x%" PRIx32 " createOptions=0x%" PRIx32
" createDisposition=0x%" PRIx32 "",
deviceId, path, desiredAccess, createOptions, createDisposition);
/* Compute the required Unicode size. */
pathLength = (strlen(path) + 1) * sizeof(WCHAR);
s = Stream_New(NULL, 256 + pathLength);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
rdpdr_server_write_device_iorequest(s, deviceId, 0, completionId, IRP_MJ_CREATE, 0);
Stream_Write_UINT32(s, desiredAccess); /* DesiredAccess (4 bytes) */
Stream_Write_UINT32(s, 0); /* AllocationSize (8 bytes) */
Stream_Write_UINT32(s, 0);
Stream_Write_UINT32(s, 0); /* FileAttributes (4 bytes) */
Stream_Write_UINT32(s, 3); /* SharedAccess (4 bytes) */
Stream_Write_UINT32(s, createDisposition); /* CreateDisposition (4 bytes) */
Stream_Write_UINT32(s, createOptions); /* CreateOptions (4 bytes) */
Stream_Write_UINT32(s, pathLength); /* PathLength (4 bytes) */
/* Convert the path to Unicode. */
MultiByteToWideChar(CP_ACP, 0, path, -1, (LPWSTR)Stream_Pointer(s), pathLength);
Stream_Seek(s, pathLength);
Stream_SealLength(s);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_device_close_request(RdpdrServerContext* context, UINT32 deviceId,
UINT32 fileId, UINT32 completionId)
{
ULONG written;
BOOL status;
wStream* s;
WLog_DBG(TAG, "RdpdrServerSendDeviceCloseRequest: deviceId=%" PRIu32 ", fileId=%" PRIu32 "",
deviceId, fileId);
s = Stream_New(NULL, 128);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
rdpdr_server_write_device_iorequest(s, deviceId, fileId, completionId, IRP_MJ_CLOSE, 0);
Stream_Zero(s, 32); /* Padding (32 bytes) */
Stream_SealLength(s);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_device_read_request(RdpdrServerContext* context, UINT32 deviceId,
UINT32 fileId, UINT32 completionId, UINT32 length,
UINT32 offset)
{
ULONG written;
BOOL status;
wStream* s;
WLog_DBG(TAG,
"RdpdrServerSendDeviceReadRequest: deviceId=%" PRIu32 ", fileId=%" PRIu32
", length=%" PRIu32 ", offset=%" PRIu32 "",
deviceId, fileId, length, offset);
s = Stream_New(NULL, 128);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
rdpdr_server_write_device_iorequest(s, deviceId, fileId, completionId, IRP_MJ_READ, 0);
Stream_Write_UINT32(s, length); /* Length (4 bytes) */
Stream_Write_UINT32(s, offset); /* Offset (8 bytes) */
Stream_Write_UINT32(s, 0);
Stream_Zero(s, 20); /* Padding (20 bytes) */
Stream_SealLength(s);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_device_write_request(RdpdrServerContext* context, UINT32 deviceId,
UINT32 fileId, UINT32 completionId,
const char* data, UINT32 length, UINT32 offset)
{
ULONG written;
BOOL status;
wStream* s;
WLog_DBG(TAG,
"RdpdrServerSendDeviceWriteRequest: deviceId=%" PRIu32 ", fileId=%" PRIu32
", length=%" PRIu32 ", offset=%" PRIu32 "",
deviceId, fileId, length, offset);
s = Stream_New(NULL, 64 + length);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
rdpdr_server_write_device_iorequest(s, deviceId, fileId, completionId, IRP_MJ_WRITE, 0);
Stream_Write_UINT32(s, length); /* Length (4 bytes) */
Stream_Write_UINT32(s, offset); /* Offset (8 bytes) */
Stream_Write_UINT32(s, 0);
Stream_Zero(s, 20); /* Padding (20 bytes) */
Stream_Write(s, data, length); /* WriteData (variable) */
Stream_SealLength(s);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_device_query_directory_request(RdpdrServerContext* context,
UINT32 deviceId, UINT32 fileId,
UINT32 completionId, const char* path)
{
UINT32 pathLength;
ULONG written;
BOOL status;
wStream* s;
WLog_DBG(TAG,
"RdpdrServerSendDeviceQueryDirectoryRequest: deviceId=%" PRIu32 ", fileId=%" PRIu32
", path=%s",
deviceId, fileId, path);
/* Compute the required Unicode size. */
pathLength = path ? (strlen(path) + 1) * sizeof(WCHAR) : 0;
s = Stream_New(NULL, 64 + pathLength);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
rdpdr_server_write_device_iorequest(s, deviceId, fileId, completionId, IRP_MJ_DIRECTORY_CONTROL,
IRP_MN_QUERY_DIRECTORY);
Stream_Write_UINT32(s, FileDirectoryInformation); /* FsInformationClass (4 bytes) */
Stream_Write_UINT8(s, path ? 1 : 0); /* InitialQuery (1 byte) */
Stream_Write_UINT32(s, pathLength); /* PathLength (4 bytes) */
Stream_Zero(s, 23); /* Padding (23 bytes) */
/* Convert the path to Unicode. */
if (pathLength > 0)
{
MultiByteToWideChar(CP_ACP, 0, path, -1, (LPWSTR)Stream_Pointer(s), pathLength);
Stream_Seek(s, pathLength);
}
Stream_SealLength(s);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_send_device_file_rename_request(RdpdrServerContext* context,
UINT32 deviceId, UINT32 fileId,
UINT32 completionId, const char* path)
{
UINT32 pathLength;
ULONG written;
BOOL status;
wStream* s;
WLog_DBG(TAG,
"RdpdrServerSendDeviceFileNameRequest: deviceId=%" PRIu32 ", fileId=%" PRIu32
", path=%s",
deviceId, fileId, path);
/* Compute the required Unicode size. */
pathLength = path ? (strlen(path) + 1) * sizeof(WCHAR) : 0;
s = Stream_New(NULL, 64 + pathLength);
if (!s)
{
WLog_ERR(TAG, "Stream_New failed!");
return CHANNEL_RC_NO_MEMORY;
}
rdpdr_server_write_device_iorequest(s, deviceId, fileId, completionId, IRP_MJ_SET_INFORMATION,
0);
Stream_Write_UINT32(s, FileRenameInformation); /* FsInformationClass (4 bytes) */
Stream_Write_UINT32(s, pathLength + 6); /* Length (4 bytes) */
Stream_Zero(s, 24); /* Padding (24 bytes) */
/* RDP_FILE_RENAME_INFORMATION */
Stream_Write_UINT8(s, 0); /* ReplaceIfExists (1 byte) */
Stream_Write_UINT8(s, 0); /* RootDirectory (1 byte) */
Stream_Write_UINT32(s, pathLength); /* FileNameLength (4 bytes) */
/* Convert the path to Unicode. */
if (pathLength > 0)
{
MultiByteToWideChar(CP_ACP, 0, path, -1, (LPWSTR)Stream_Pointer(s), pathLength);
Stream_Seek(s, pathLength);
}
Stream_SealLength(s);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, (PCHAR)Stream_Buffer(s),
Stream_Length(s), &written);
Stream_Free(s, TRUE);
return status ? CHANNEL_RC_OK : ERROR_INTERNAL_ERROR;
}
static void rdpdr_server_convert_slashes(char* path, int size)
{
int i;
for (i = 0; (i < size) && (path[i] != '\0'); i++)
{
if (path[i] == '/')
path[i] = '\\';
}
}
/*************************************************
* Drive Create Directory
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_create_directory_callback2(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
WLog_DBG(TAG,
"RdpdrServerDriveCreateDirectoryCallback2: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
/* Invoke the create directory completion routine. */
context->OnDriveCreateDirectoryComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_create_directory_callback1(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 fileId;
UINT8 information;
WLog_DBG(TAG,
"RdpdrServerDriveCreateDirectoryCallback1: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (ioStatus != STATUS_SUCCESS)
{
/* Invoke the create directory completion routine. */
context->OnDriveCreateDirectoryComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
if (Stream_GetRemainingLength(s) < 5)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, fileId); /* FileId (4 bytes) */
Stream_Read_UINT8(s, information); /* Information (1 byte) */
/* Setup the IRP. */
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_create_directory_callback2;
irp->DeviceId = deviceId;
irp->FileId = fileId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to close the file */
return rdpdr_server_send_device_close_request(context, deviceId, fileId, irp->CompletionId);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_create_directory(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, const char* path)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_create_directory_callback1;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
strncpy(irp->PathName, path, sizeof(irp->PathName) - 1);
rdpdr_server_convert_slashes(irp->PathName, sizeof(irp->PathName));
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the file. */
return rdpdr_server_send_device_create_request(
context, deviceId, irp->CompletionId, irp->PathName, FILE_READ_DATA | SYNCHRONIZE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT, FILE_CREATE);
}
/*************************************************
* Drive Delete Directory
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_delete_directory_callback2(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
WLog_DBG(TAG,
"RdpdrServerDriveDeleteDirectoryCallback2: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
/* Invoke the delete directory completion routine. */
context->OnDriveDeleteDirectoryComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_delete_directory_callback1(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 fileId;
UINT8 information;
WLog_DBG(TAG,
"RdpdrServerDriveDeleteDirectoryCallback1: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (ioStatus != STATUS_SUCCESS)
{
/* Invoke the delete directory completion routine. */
context->OnDriveDeleteFileComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
if (Stream_GetRemainingLength(s) < 5)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, fileId); /* FileId (4 bytes) */
Stream_Read_UINT8(s, information); /* Information (1 byte) */
/* Setup the IRP. */
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_delete_directory_callback2;
irp->DeviceId = deviceId;
irp->FileId = fileId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to close the file */
return rdpdr_server_send_device_close_request(context, deviceId, fileId, irp->CompletionId);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_delete_directory(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, const char* path)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_delete_directory_callback1;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
strncpy(irp->PathName, path, sizeof(irp->PathName) - 1);
rdpdr_server_convert_slashes(irp->PathName, sizeof(irp->PathName));
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the file. */
return rdpdr_server_send_device_create_request(
context, deviceId, irp->CompletionId, irp->PathName, DELETE | SYNCHRONIZE,
FILE_DIRECTORY_FILE | FILE_DELETE_ON_CLOSE | FILE_SYNCHRONOUS_IO_NONALERT, FILE_OPEN);
}
/*************************************************
* Drive Query Directory
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_query_directory_callback2(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT error;
UINT32 length;
FILE_DIRECTORY_INFORMATION fdi;
WLog_DBG(TAG,
"RdpdrServerDriveQueryDirectoryCallback2: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, length); /* Length (4 bytes) */
if (length > 0)
{
if ((error = rdpdr_server_read_file_directory_information(s, &fdi)))
{
WLog_ERR(TAG,
"rdpdr_server_read_file_directory_information failed with error %" PRIu32 "!",
error);
return error;
}
}
else
{
if (Stream_GetRemainingLength(s) < 1)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Seek(s, 1); /* Padding (1 byte) */
}
if (ioStatus == STATUS_SUCCESS)
{
/* Invoke the query directory completion routine. */
context->OnDriveQueryDirectoryComplete(context, irp->CallbackData, ioStatus,
length > 0 ? &fdi : NULL);
/* Setup the IRP. */
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_query_directory_callback2;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to query the directory. */
return rdpdr_server_send_device_query_directory_request(context, irp->DeviceId, irp->FileId,
irp->CompletionId, NULL);
}
else
{
/* Invoke the query directory completion routine. */
context->OnDriveQueryDirectoryComplete(context, irp->CallbackData, ioStatus, NULL);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
}
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_query_directory_callback1(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 fileId;
WLog_DBG(TAG,
"RdpdrServerDriveQueryDirectoryCallback1: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (ioStatus != STATUS_SUCCESS)
{
/* Invoke the query directory completion routine. */
context->OnDriveQueryDirectoryComplete(context, irp->CallbackData, ioStatus, NULL);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, fileId);
/* Setup the IRP. */
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_query_directory_callback2;
irp->DeviceId = deviceId;
irp->FileId = fileId;
winpr_str_append("\\*.*", irp->PathName, ARRAYSIZE(irp->PathName), NULL);
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to query the directory. */
return rdpdr_server_send_device_query_directory_request(context, deviceId, fileId,
irp->CompletionId, irp->PathName);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_query_directory(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, const char* path)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_query_directory_callback1;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
strncpy(irp->PathName, path, sizeof(irp->PathName) - 1);
rdpdr_server_convert_slashes(irp->PathName, sizeof(irp->PathName));
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the directory. */
return rdpdr_server_send_device_create_request(
context, deviceId, irp->CompletionId, irp->PathName, FILE_READ_DATA | SYNCHRONIZE,
FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT, FILE_OPEN);
}
/*************************************************
* Drive Open File
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_open_file_callback(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 fileId;
UINT8 information;
WLog_DBG(TAG,
"RdpdrServerDriveOpenFileCallback: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (Stream_GetRemainingLength(s) < 5)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, fileId); /* FileId (4 bytes) */
Stream_Read_UINT8(s, information); /* Information (1 byte) */
/* Invoke the open file completion routine. */
context->OnDriveOpenFileComplete(context, irp->CallbackData, ioStatus, deviceId, fileId);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_open_file(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, const char* path, UINT32 desiredAccess,
UINT32 createDisposition)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_open_file_callback;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
strncpy(irp->PathName, path, sizeof(irp->PathName) - 1);
rdpdr_server_convert_slashes(irp->PathName, sizeof(irp->PathName));
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the file. */
return rdpdr_server_send_device_create_request(context, deviceId, irp->CompletionId,
irp->PathName, desiredAccess | SYNCHRONIZE,
FILE_SYNCHRONOUS_IO_NONALERT, createDisposition);
}
/*************************************************
* Drive Read File
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_read_file_callback(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 length;
char* buffer = NULL;
WLog_DBG(TAG,
"RdpdrServerDriveReadFileCallback: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (Stream_GetRemainingLength(s) < 4)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, length); /* Length (4 bytes) */
if (Stream_GetRemainingLength(s) < length)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
if (length > 0)
{
buffer = (char*)Stream_Pointer(s);
Stream_Seek(s, length);
}
/* Invoke the read file completion routine. */
context->OnDriveReadFileComplete(context, irp->CallbackData, ioStatus, buffer, length);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_read_file(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, UINT32 fileId, UINT32 length,
UINT32 offset)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_read_file_callback;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
irp->FileId = fileId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the directory. */
return rdpdr_server_send_device_read_request(context, deviceId, fileId, irp->CompletionId,
length, offset);
}
/*************************************************
* Drive Write File
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_write_file_callback(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 length;
WLog_DBG(TAG,
"RdpdrServerDriveWriteFileCallback: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (Stream_GetRemainingLength(s) < 5)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, length); /* Length (4 bytes) */
Stream_Seek(s, 1); /* Padding (1 byte) */
if (Stream_GetRemainingLength(s) < length)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
/* Invoke the write file completion routine. */
context->OnDriveWriteFileComplete(context, irp->CallbackData, ioStatus, length);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_write_file(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, UINT32 fileId, const char* buffer,
UINT32 length, UINT32 offset)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_write_file_callback;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
irp->FileId = fileId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the directory. */
return rdpdr_server_send_device_write_request(context, deviceId, fileId, irp->CompletionId,
buffer, length, offset);
}
/*************************************************
* Drive Close File
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_close_file_callback(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
WLog_DBG(TAG,
"RdpdrServerDriveCloseFileCallback: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
/* Invoke the close file completion routine. */
context->OnDriveCloseFileComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_close_file(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, UINT32 fileId)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_close_file_callback;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
irp->FileId = fileId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the directory. */
return rdpdr_server_send_device_close_request(context, deviceId, fileId, irp->CompletionId);
}
/*************************************************
* Drive Delete File
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_delete_file_callback2(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
WLog_DBG(TAG,
"RdpdrServerDriveDeleteFileCallback2: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
/* Invoke the delete file completion routine. */
context->OnDriveDeleteFileComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_delete_file_callback1(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 fileId;
UINT8 information;
WLog_DBG(TAG,
"RdpdrServerDriveDeleteFileCallback1: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (ioStatus != STATUS_SUCCESS)
{
/* Invoke the close file completion routine. */
context->OnDriveDeleteFileComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
if (Stream_GetRemainingLength(s) < 5)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, fileId); /* FileId (4 bytes) */
Stream_Read_UINT8(s, information); /* Information (1 byte) */
/* Setup the IRP. */
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_delete_file_callback2;
irp->DeviceId = deviceId;
irp->FileId = fileId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to close the file */
return rdpdr_server_send_device_close_request(context, deviceId, fileId, irp->CompletionId);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_delete_file(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, const char* path)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_delete_file_callback1;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
strncpy(irp->PathName, path, sizeof(irp->PathName) - 1);
rdpdr_server_convert_slashes(irp->PathName, sizeof(irp->PathName));
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the file. */
return rdpdr_server_send_device_create_request(
context, deviceId, irp->CompletionId, irp->PathName, FILE_READ_DATA | SYNCHRONIZE,
FILE_DELETE_ON_CLOSE | FILE_SYNCHRONOUS_IO_NONALERT, FILE_OPEN);
}
/*************************************************
* Drive Rename File
************************************************/
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_rename_file_callback3(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
WLog_DBG(TAG,
"RdpdrServerDriveRenameFileCallback3: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_rename_file_callback2(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 length;
WLog_DBG(TAG,
"RdpdrServerDriveRenameFileCallback2: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (Stream_GetRemainingLength(s) < 5)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, length); /* Length (4 bytes) */
Stream_Seek(s, 1); /* Padding (1 byte) */
/* Invoke the rename file completion routine. */
context->OnDriveRenameFileComplete(context, irp->CallbackData, ioStatus);
/* Setup the IRP. */
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_rename_file_callback3;
irp->DeviceId = deviceId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to close the file */
return rdpdr_server_send_device_close_request(context, deviceId, irp->FileId,
irp->CompletionId);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_rename_file_callback1(RdpdrServerContext* context, wStream* s,
RDPDR_IRP* irp, UINT32 deviceId,
UINT32 completionId, UINT32 ioStatus)
{
UINT32 fileId;
UINT8 information;
WLog_DBG(TAG,
"RdpdrServerDriveRenameFileCallback1: deviceId=%" PRIu32 ", completionId=%" PRIu32
", ioStatus=0x%" PRIx32 "",
deviceId, completionId, ioStatus);
if (ioStatus != STATUS_SUCCESS)
{
/* Invoke the rename file completion routine. */
context->OnDriveRenameFileComplete(context, irp->CallbackData, ioStatus);
/* Destroy the IRP. */
rdpdr_server_irp_free(irp);
return CHANNEL_RC_OK;
}
if (Stream_GetRemainingLength(s) < 5)
{
WLog_ERR(TAG, "not enough data in stream!");
return ERROR_INVALID_DATA;
}
Stream_Read_UINT32(s, fileId); /* FileId (4 bytes) */
Stream_Read_UINT8(s, information); /* Information (1 byte) */
/* Setup the IRP. */
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_rename_file_callback2;
irp->DeviceId = deviceId;
irp->FileId = fileId;
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to rename the file */
return rdpdr_server_send_device_file_rename_request(context, deviceId, fileId,
irp->CompletionId, irp->ExtraBuffer);
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpdr_server_drive_rename_file(RdpdrServerContext* context, void* callbackData,
UINT32 deviceId, const char* oldPath,
const char* newPath)
{
RDPDR_IRP* irp;
irp = rdpdr_server_irp_new();
if (!irp)
{
WLog_ERR(TAG, "rdpdr_server_irp_new failed!");
return CHANNEL_RC_NO_MEMORY;
}
irp->CompletionId = context->priv->NextCompletionId++;
irp->Callback = rdpdr_server_drive_rename_file_callback1;
irp->CallbackData = callbackData;
irp->DeviceId = deviceId;
strncpy(irp->PathName, oldPath, sizeof(irp->PathName) - 1);
strncpy(irp->ExtraBuffer, newPath, sizeof(irp->ExtraBuffer) - 1);
rdpdr_server_convert_slashes(irp->PathName, sizeof(irp->PathName));
rdpdr_server_convert_slashes(irp->ExtraBuffer, sizeof(irp->ExtraBuffer));
if (!rdpdr_server_enqueue_irp(context, irp))
{
WLog_ERR(TAG, "rdpdr_server_enqueue_irp failed!");
rdpdr_server_irp_free(irp);
return ERROR_INTERNAL_ERROR;
}
/* Send a request to open the file. */
return rdpdr_server_send_device_create_request(context, deviceId, irp->CompletionId,
irp->PathName, FILE_READ_DATA | SYNCHRONIZE,
FILE_SYNCHRONOUS_IO_NONALERT, FILE_OPEN);
}
RdpdrServerContext* rdpdr_server_context_new(HANDLE vcm)
{
RdpdrServerContext* context;
context = (RdpdrServerContext*)calloc(1, sizeof(RdpdrServerContext));
if (context)
{
context->vcm = vcm;
context->Start = rdpdr_server_start;
context->Stop = rdpdr_server_stop;
context->DriveCreateDirectory = rdpdr_server_drive_create_directory;
context->DriveDeleteDirectory = rdpdr_server_drive_delete_directory;
context->DriveQueryDirectory = rdpdr_server_drive_query_directory;
context->DriveOpenFile = rdpdr_server_drive_open_file;
context->DriveReadFile = rdpdr_server_drive_read_file;
context->DriveWriteFile = rdpdr_server_drive_write_file;
context->DriveCloseFile = rdpdr_server_drive_close_file;
context->DriveDeleteFile = rdpdr_server_drive_delete_file;
context->DriveRenameFile = rdpdr_server_drive_rename_file;
context->priv = (RdpdrServerPrivate*)calloc(1, sizeof(RdpdrServerPrivate));
if (!context->priv)
{
WLog_ERR(TAG, "calloc failed!");
free(context);
return NULL;
}
context->priv->VersionMajor = RDPDR_VERSION_MAJOR;
context->priv->VersionMinor = RDPDR_VERSION_MINOR_RDP6X;
context->priv->ClientId = g_ClientId++;
context->priv->UserLoggedOnPdu = TRUE;
context->priv->NextCompletionId = 1;
context->priv->IrpList = ListDictionary_New(TRUE);
if (!context->priv->IrpList)
{
WLog_ERR(TAG, "ListDictionary_New failed!");
free(context->priv);
free(context);
return NULL;
}
}
else
{
WLog_ERR(TAG, "calloc failed!");
}
return context;
}
void rdpdr_server_context_free(RdpdrServerContext* context)
{
if (context)
{
if (context->priv)
{
ListDictionary_Free(context->priv->IrpList);
free(context->priv);
}
free(context);
}
}