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Diffstat (limited to '')
| -rw-r--r-- | channels/cliprdr/client/cliprdr_main.c | 1192 |
1 files changed, 1192 insertions, 0 deletions
diff --git a/channels/cliprdr/client/cliprdr_main.c b/channels/cliprdr/client/cliprdr_main.c new file mode 100644 index 0000000..60ae27d --- /dev/null +++ b/channels/cliprdr/client/cliprdr_main.c @@ -0,0 +1,1192 @@ +/** + * FreeRDP: A Remote Desktop Protocol Implementation + * Clipboard Virtual Channel + * + * Copyright 2009-2011 Jay Sorg + * Copyright 2010-2011 Vic Lee + * 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. + */ + +#include <freerdp/config.h> + +#include <winpr/wtypes.h> +#include <winpr/assert.h> +#include <winpr/crt.h> +#include <winpr/print.h> + +#include <freerdp/types.h> +#include <freerdp/constants.h> +#include <freerdp/freerdp.h> +#include <freerdp/client/cliprdr.h> + +#include "../../../channels/client/addin.h" + +#include "cliprdr_main.h" +#include "cliprdr_format.h" +#include "../cliprdr_common.h" + +const char* type_FileGroupDescriptorW = "FileGroupDescriptorW"; +const char* type_FileContents = "FileContents"; + +static const char* CB_MSG_TYPE_STRINGS(UINT32 type) +{ + switch (type) + { + case CB_MONITOR_READY: + return "CB_MONITOR_READY"; + case CB_FORMAT_LIST: + return "CB_FORMAT_LIST"; + case CB_FORMAT_LIST_RESPONSE: + return "CB_FORMAT_LIST_RESPONSE"; + case CB_FORMAT_DATA_REQUEST: + return "CB_FORMAT_DATA_REQUEST"; + case CB_FORMAT_DATA_RESPONSE: + return "CB_FORMAT_DATA_RESPONSE"; + case CB_TEMP_DIRECTORY: + return "CB_TEMP_DIRECTORY"; + case CB_CLIP_CAPS: + return "CB_CLIP_CAPS"; + case CB_FILECONTENTS_REQUEST: + return "CB_FILECONTENTS_REQUEST"; + case CB_FILECONTENTS_RESPONSE: + return "CB_FILECONTENTS_RESPONSE"; + case CB_LOCK_CLIPDATA: + return "CB_LOCK_CLIPDATA"; + case CB_UNLOCK_CLIPDATA: + return "CB_UNLOCK_CLIPDATA"; + default: + return "UNKNOWN"; + } +} + +CliprdrClientContext* cliprdr_get_client_interface(cliprdrPlugin* cliprdr) +{ + CliprdrClientContext* pInterface = NULL; + + if (!cliprdr) + return NULL; + + pInterface = (CliprdrClientContext*)cliprdr->channelEntryPoints.pInterface; + return pInterface; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_packet_send(cliprdrPlugin* cliprdr, wStream* s) +{ + size_t pos = 0; + UINT32 dataLen = 0; + UINT status = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + pos = Stream_GetPosition(s); + dataLen = pos - 8; + Stream_SetPosition(s, 4); + Stream_Write_UINT32(s, dataLen); + Stream_SetPosition(s, pos); + + WLog_DBG(TAG, "Cliprdr Sending (%" PRIu32 " bytes)", dataLen + 8); + + if (!cliprdr) + { + status = CHANNEL_RC_BAD_INIT_HANDLE; + } + else + { + WINPR_ASSERT(cliprdr->channelEntryPoints.pVirtualChannelWriteEx); + status = cliprdr->channelEntryPoints.pVirtualChannelWriteEx( + cliprdr->InitHandle, cliprdr->OpenHandle, Stream_Buffer(s), + (UINT32)Stream_GetPosition(s), s); + } + + if (status != CHANNEL_RC_OK) + { + Stream_Free(s, TRUE); + WLog_ERR(TAG, "VirtualChannelWrite failed with %s [%08" PRIX32 "]", + WTSErrorToString(status), status); + } + + return status; +} + +UINT cliprdr_send_error_response(cliprdrPlugin* cliprdr, UINT16 type) +{ + wStream* s = cliprdr_packet_new(type, CB_RESPONSE_FAIL, 0); + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_OUTOFMEMORY; + } + + return cliprdr_packet_send(cliprdr, s); +} + +static void cliprdr_print_general_capability_flags(UINT32 flags) +{ + WLog_DBG(TAG, "generalFlags (0x%08" PRIX32 ") {", flags); + + if (flags & CB_USE_LONG_FORMAT_NAMES) + WLog_DBG(TAG, "\tCB_USE_LONG_FORMAT_NAMES"); + + if (flags & CB_STREAM_FILECLIP_ENABLED) + WLog_DBG(TAG, "\tCB_STREAM_FILECLIP_ENABLED"); + + if (flags & CB_FILECLIP_NO_FILE_PATHS) + WLog_DBG(TAG, "\tCB_FILECLIP_NO_FILE_PATHS"); + + if (flags & CB_CAN_LOCK_CLIPDATA) + WLog_DBG(TAG, "\tCB_CAN_LOCK_CLIPDATA"); + + if (flags & CB_HUGE_FILE_SUPPORT_ENABLED) + WLog_DBG(TAG, "\tCB_HUGE_FILE_SUPPORT_ENABLED"); + + WLog_DBG(TAG, "}"); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_process_general_capability(cliprdrPlugin* cliprdr, wStream* s) +{ + UINT32 version = 0; + UINT32 generalFlags = 0; + CLIPRDR_CAPABILITIES capabilities = { 0 }; + CLIPRDR_GENERAL_CAPABILITY_SET generalCapabilitySet = { 0 }; + CliprdrClientContext* context = cliprdr_get_client_interface(cliprdr); + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + if (!context) + { + WLog_ERR(TAG, "cliprdr_get_client_interface failed!"); + return ERROR_INTERNAL_ERROR; + } + + if (!Stream_CheckAndLogRequiredLength(TAG, s, 8)) + return ERROR_INVALID_DATA; + + Stream_Read_UINT32(s, version); /* version (4 bytes) */ + Stream_Read_UINT32(s, generalFlags); /* generalFlags (4 bytes) */ + WLog_DBG(TAG, "Version: %" PRIu32 "", version); + + cliprdr_print_general_capability_flags(generalFlags); + + cliprdr->useLongFormatNames = (generalFlags & CB_USE_LONG_FORMAT_NAMES) ? TRUE : FALSE; + cliprdr->streamFileClipEnabled = (generalFlags & CB_STREAM_FILECLIP_ENABLED) ? TRUE : FALSE; + cliprdr->fileClipNoFilePaths = (generalFlags & CB_FILECLIP_NO_FILE_PATHS) ? TRUE : FALSE; + cliprdr->canLockClipData = (generalFlags & CB_CAN_LOCK_CLIPDATA) ? TRUE : FALSE; + cliprdr->hasHugeFileSupport = (generalFlags & CB_HUGE_FILE_SUPPORT_ENABLED) ? TRUE : FALSE; + cliprdr->capabilitiesReceived = TRUE; + + capabilities.common.msgType = CB_CLIP_CAPS; + capabilities.cCapabilitiesSets = 1; + capabilities.capabilitySets = (CLIPRDR_CAPABILITY_SET*)&(generalCapabilitySet); + generalCapabilitySet.capabilitySetType = CB_CAPSTYPE_GENERAL; + generalCapabilitySet.capabilitySetLength = 12; + generalCapabilitySet.version = version; + generalCapabilitySet.generalFlags = generalFlags; + IFCALLRET(context->ServerCapabilities, error, context, &capabilities); + + if (error) + WLog_ERR(TAG, "ServerCapabilities failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_process_clip_caps(cliprdrPlugin* cliprdr, wStream* s, UINT32 length, + UINT16 flags) +{ + UINT16 lengthCapability = 0; + UINT16 cCapabilitiesSets = 0; + UINT16 capabilitySetType = 0; + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + if (!Stream_CheckAndLogRequiredLength(TAG, s, 4)) + return ERROR_INVALID_DATA; + + Stream_Read_UINT16(s, cCapabilitiesSets); /* cCapabilitiesSets (2 bytes) */ + Stream_Seek_UINT16(s); /* pad1 (2 bytes) */ + WLog_Print(cliprdr->log, WLOG_DEBUG, "ServerCapabilities"); + + for (UINT16 index = 0; index < cCapabilitiesSets; index++) + { + if (!Stream_CheckAndLogRequiredLength(TAG, s, 4)) + return ERROR_INVALID_DATA; + + Stream_Read_UINT16(s, capabilitySetType); /* capabilitySetType (2 bytes) */ + Stream_Read_UINT16(s, lengthCapability); /* lengthCapability (2 bytes) */ + + if ((lengthCapability < 4) || + (!Stream_CheckAndLogRequiredLength(TAG, s, lengthCapability - 4U))) + return ERROR_INVALID_DATA; + + switch (capabilitySetType) + { + case CB_CAPSTYPE_GENERAL: + if ((error = cliprdr_process_general_capability(cliprdr, s))) + { + WLog_ERR(TAG, + "cliprdr_process_general_capability failed with error %" PRIu32 "!", + error); + return error; + } + + break; + + default: + WLog_ERR(TAG, "unknown cliprdr capability set: %" PRIu16 "", capabilitySetType); + return CHANNEL_RC_BAD_PROC; + } + } + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_process_monitor_ready(cliprdrPlugin* cliprdr, wStream* s, UINT32 length, + UINT16 flags) +{ + CLIPRDR_MONITOR_READY monitorReady = { 0 }; + CliprdrClientContext* context = cliprdr_get_client_interface(cliprdr); + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + WLog_Print(cliprdr->log, WLOG_DEBUG, "MonitorReady"); + + if (!cliprdr->capabilitiesReceived) + { + /** + * The clipboard capabilities pdu from server to client is optional, + * but a server using it must send it before sending the monitor ready pdu. + * When the server capabilities pdu is not used, default capabilities + * corresponding to a generalFlags field set to zero are assumed. + */ + cliprdr->useLongFormatNames = FALSE; + cliprdr->streamFileClipEnabled = FALSE; + cliprdr->fileClipNoFilePaths = TRUE; + cliprdr->canLockClipData = FALSE; + } + + monitorReady.common.msgType = CB_MONITOR_READY; + monitorReady.common.msgFlags = flags; + monitorReady.common.dataLen = length; + IFCALLRET(context->MonitorReady, error, context, &monitorReady); + + if (error) + WLog_ERR(TAG, "MonitorReady failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_process_filecontents_request(cliprdrPlugin* cliprdr, wStream* s, UINT32 length, + UINT16 flags) +{ + CLIPRDR_FILE_CONTENTS_REQUEST request = { 0 }; + CliprdrClientContext* context = cliprdr_get_client_interface(cliprdr); + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + WLog_Print(cliprdr->log, WLOG_DEBUG, "FileContentsRequest"); + + request.common.msgType = CB_FILECONTENTS_REQUEST; + request.common.msgFlags = flags; + request.common.dataLen = length; + + if ((error = cliprdr_read_file_contents_request(s, &request))) + return error; + + const UINT32 mask = + freerdp_settings_get_uint32(context->rdpcontext->settings, FreeRDP_ClipboardFeatureMask); + if ((mask & (CLIPRDR_FLAG_LOCAL_TO_REMOTE_FILES)) == 0) + { + WLog_WARN(TAG, "local -> remote file copy disabled, ignoring request"); + return cliprdr_send_error_response(cliprdr, CB_FILECONTENTS_RESPONSE); + } + IFCALLRET(context->ServerFileContentsRequest, error, context, &request); + + if (error) + WLog_ERR(TAG, "ServerFileContentsRequest failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_process_filecontents_response(cliprdrPlugin* cliprdr, wStream* s, UINT32 length, + UINT16 flags) +{ + CLIPRDR_FILE_CONTENTS_RESPONSE response = { 0 }; + CliprdrClientContext* context = cliprdr_get_client_interface(cliprdr); + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + WLog_Print(cliprdr->log, WLOG_DEBUG, "FileContentsResponse"); + + response.common.msgType = CB_FILECONTENTS_RESPONSE; + response.common.msgFlags = flags; + response.common.dataLen = length; + + if ((error = cliprdr_read_file_contents_response(s, &response))) + return error; + + IFCALLRET(context->ServerFileContentsResponse, error, context, &response); + + if (error) + WLog_ERR(TAG, "ServerFileContentsResponse failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_process_lock_clipdata(cliprdrPlugin* cliprdr, wStream* s, UINT32 length, + UINT16 flags) +{ + CLIPRDR_LOCK_CLIPBOARD_DATA lockClipboardData = { 0 }; + CliprdrClientContext* context = cliprdr_get_client_interface(cliprdr); + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + WLog_Print(cliprdr->log, WLOG_DEBUG, "LockClipData"); + + if (!Stream_CheckAndLogRequiredLength(TAG, s, 4)) + return ERROR_INVALID_DATA; + + lockClipboardData.common.msgType = CB_LOCK_CLIPDATA; + lockClipboardData.common.msgFlags = flags; + lockClipboardData.common.dataLen = length; + Stream_Read_UINT32(s, lockClipboardData.clipDataId); /* clipDataId (4 bytes) */ + IFCALLRET(context->ServerLockClipboardData, error, context, &lockClipboardData); + + if (error) + WLog_ERR(TAG, "ServerLockClipboardData failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_process_unlock_clipdata(cliprdrPlugin* cliprdr, wStream* s, UINT32 length, + UINT16 flags) +{ + CLIPRDR_UNLOCK_CLIPBOARD_DATA unlockClipboardData = { 0 }; + CliprdrClientContext* context = cliprdr_get_client_interface(cliprdr); + UINT error = CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + WLog_Print(cliprdr->log, WLOG_DEBUG, "UnlockClipData"); + + if ((error = cliprdr_read_unlock_clipdata(s, &unlockClipboardData))) + return error; + + unlockClipboardData.common.msgType = CB_UNLOCK_CLIPDATA; + unlockClipboardData.common.msgFlags = flags; + unlockClipboardData.common.dataLen = length; + + IFCALLRET(context->ServerUnlockClipboardData, error, context, &unlockClipboardData); + + if (error) + WLog_ERR(TAG, "ServerUnlockClipboardData failed with error %" PRIu32 "!", error); + + return error; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_order_recv(LPVOID userdata, wStream* s) +{ + cliprdrPlugin* cliprdr = userdata; + UINT16 msgType = 0; + UINT16 msgFlags = 0; + UINT32 dataLen = 0; + UINT error = 0; + + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(s); + + if (!Stream_CheckAndLogRequiredLength(TAG, s, 8)) + return ERROR_INVALID_DATA; + + Stream_Read_UINT16(s, msgType); /* msgType (2 bytes) */ + Stream_Read_UINT16(s, msgFlags); /* msgFlags (2 bytes) */ + Stream_Read_UINT32(s, dataLen); /* dataLen (4 bytes) */ + + if (!Stream_CheckAndLogRequiredLength(TAG, s, dataLen)) + return ERROR_INVALID_DATA; + + WLog_DBG(TAG, "msgType: %s (%" PRIu16 "), msgFlags: %" PRIu16 " dataLen: %" PRIu32 "", + CB_MSG_TYPE_STRINGS(msgType), msgType, msgFlags, dataLen); + + switch (msgType) + { + case CB_CLIP_CAPS: + if ((error = cliprdr_process_clip_caps(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_clip_caps failed with error %" PRIu32 "!", error); + + break; + + case CB_MONITOR_READY: + if ((error = cliprdr_process_monitor_ready(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_monitor_ready failed with error %" PRIu32 "!", + error); + + break; + + case CB_FORMAT_LIST: + if ((error = cliprdr_process_format_list(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_format_list failed with error %" PRIu32 "!", error); + + break; + + case CB_FORMAT_LIST_RESPONSE: + if ((error = cliprdr_process_format_list_response(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_format_list_response failed with error %" PRIu32 "!", + error); + + break; + + case CB_FORMAT_DATA_REQUEST: + if ((error = cliprdr_process_format_data_request(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_format_data_request failed with error %" PRIu32 "!", + error); + + break; + + case CB_FORMAT_DATA_RESPONSE: + if ((error = cliprdr_process_format_data_response(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_format_data_response failed with error %" PRIu32 "!", + error); + + break; + + case CB_FILECONTENTS_REQUEST: + if ((error = cliprdr_process_filecontents_request(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_filecontents_request failed with error %" PRIu32 "!", + error); + + break; + + case CB_FILECONTENTS_RESPONSE: + if ((error = cliprdr_process_filecontents_response(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, + "cliprdr_process_filecontents_response failed with error %" PRIu32 "!", + error); + + break; + + case CB_LOCK_CLIPDATA: + if ((error = cliprdr_process_lock_clipdata(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_lock_clipdata failed with error %" PRIu32 "!", + error); + + break; + + case CB_UNLOCK_CLIPDATA: + if ((error = cliprdr_process_unlock_clipdata(cliprdr, s, dataLen, msgFlags))) + WLog_ERR(TAG, "cliprdr_process_unlock_clipdata failed with error %" PRIu32 "!", + error); + + break; + + default: + error = CHANNEL_RC_BAD_PROC; + WLog_ERR(TAG, "unknown msgType %" PRIu16 "", msgType); + break; + } + + Stream_Free(s, TRUE); + return error; +} + +/** + * Callback Interface + */ + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_client_capabilities(CliprdrClientContext* context, + const CLIPRDR_CAPABILITIES* capabilities) +{ + wStream* s = NULL; + UINT32 flags = 0; + const CLIPRDR_GENERAL_CAPABILITY_SET* generalCapabilitySet = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + s = cliprdr_packet_new(CB_CLIP_CAPS, 0, 4 + CB_CAPSTYPE_GENERAL_LEN); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Write_UINT16(s, 1); /* cCapabilitiesSets */ + Stream_Write_UINT16(s, 0); /* pad1 */ + generalCapabilitySet = (const CLIPRDR_GENERAL_CAPABILITY_SET*)capabilities->capabilitySets; + Stream_Write_UINT16(s, generalCapabilitySet->capabilitySetType); /* capabilitySetType */ + Stream_Write_UINT16(s, generalCapabilitySet->capabilitySetLength); /* lengthCapability */ + Stream_Write_UINT32(s, generalCapabilitySet->version); /* version */ + flags = generalCapabilitySet->generalFlags; + + /* Client capabilities are sent in response to server capabilities. + * -> Do not request features the server does not support. + * -> Update clipboard context feature state to what was agreed upon. + */ + if (!cliprdr->useLongFormatNames) + flags &= ~CB_USE_LONG_FORMAT_NAMES; + if (!cliprdr->streamFileClipEnabled) + flags &= ~CB_STREAM_FILECLIP_ENABLED; + if (!cliprdr->fileClipNoFilePaths) + flags &= ~CB_FILECLIP_NO_FILE_PATHS; + if (!cliprdr->canLockClipData) + flags &= ~CB_CAN_LOCK_CLIPDATA; + if (!cliprdr->hasHugeFileSupport) + flags &= ~CB_HUGE_FILE_SUPPORT_ENABLED; + + cliprdr->useLongFormatNames = (flags & CB_USE_LONG_FORMAT_NAMES) ? TRUE : FALSE; + cliprdr->streamFileClipEnabled = (flags & CB_STREAM_FILECLIP_ENABLED) ? TRUE : FALSE; + cliprdr->fileClipNoFilePaths = (flags & CB_FILECLIP_NO_FILE_PATHS) ? TRUE : FALSE; + cliprdr->canLockClipData = (flags & CB_CAN_LOCK_CLIPDATA) ? TRUE : FALSE; + cliprdr->hasHugeFileSupport = (flags & CB_HUGE_FILE_SUPPORT_ENABLED) ? TRUE : FALSE; + + Stream_Write_UINT32(s, flags); /* generalFlags */ + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientCapabilities"); + + cliprdr->initialFormatListSent = FALSE; + + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_temp_directory(CliprdrClientContext* context, + const CLIPRDR_TEMP_DIRECTORY* tempDirectory) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(tempDirectory); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + const size_t tmpDirCharLen = sizeof(tempDirectory->szTempDir) / sizeof(WCHAR); + s = cliprdr_packet_new(CB_TEMP_DIRECTORY, 0, tmpDirCharLen * sizeof(WCHAR)); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + if (Stream_Write_UTF16_String_From_UTF8(s, tmpDirCharLen - 1, tempDirectory->szTempDir, + ARRAYSIZE(tempDirectory->szTempDir), TRUE) < 0) + return ERROR_INTERNAL_ERROR; + /* Path must be 260 UTF16 characters with '\0' termination. + * ensure this here */ + Stream_Write_UINT16(s, 0); + + WLog_Print(cliprdr->log, WLOG_DEBUG, "TempDirectory: %s", tempDirectory->szTempDir); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_client_format_list(CliprdrClientContext* context, + const CLIPRDR_FORMAT_LIST* formatList) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatList); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + const UINT32 mask = + freerdp_settings_get_uint32(context->rdpcontext->settings, FreeRDP_ClipboardFeatureMask); + CLIPRDR_FORMAT_LIST filterList = cliprdr_filter_format_list( + formatList, mask, CLIPRDR_FLAG_LOCAL_TO_REMOTE | CLIPRDR_FLAG_LOCAL_TO_REMOTE_FILES); + + /* Allow initial format list from monitor ready, but ignore later attempts */ + if ((filterList.numFormats == 0) && cliprdr->initialFormatListSent) + { + cliprdr_free_format_list(&filterList); + return CHANNEL_RC_OK; + } + cliprdr->initialFormatListSent = TRUE; + + s = cliprdr_packet_format_list_new(&filterList, cliprdr->useLongFormatNames); + cliprdr_free_format_list(&filterList); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_format_list_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientFormatList: numFormats: %" PRIu32 "", + formatList->numFormats); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_client_format_list_response(CliprdrClientContext* context, + const CLIPRDR_FORMAT_LIST_RESPONSE* formatListResponse) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatListResponse); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + s = cliprdr_packet_new(CB_FORMAT_LIST_RESPONSE, formatListResponse->common.msgFlags, 0); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientFormatListResponse"); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_client_lock_clipboard_data(CliprdrClientContext* context, + const CLIPRDR_LOCK_CLIPBOARD_DATA* lockClipboardData) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(lockClipboardData); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + s = cliprdr_packet_lock_clipdata_new(lockClipboardData); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_lock_clipdata_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientLockClipboardData: clipDataId: 0x%08" PRIX32 "", + lockClipboardData->clipDataId); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_client_unlock_clipboard_data(CliprdrClientContext* context, + const CLIPRDR_UNLOCK_CLIPBOARD_DATA* unlockClipboardData) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(unlockClipboardData); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + s = cliprdr_packet_unlock_clipdata_new(unlockClipboardData); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_unlock_clipdata_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientUnlockClipboardData: clipDataId: 0x%08" PRIX32 "", + unlockClipboardData->clipDataId); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_client_format_data_request(CliprdrClientContext* context, + const CLIPRDR_FORMAT_DATA_REQUEST* formatDataRequest) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatDataRequest); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + const UINT32 mask = + freerdp_settings_get_uint32(context->rdpcontext->settings, FreeRDP_ClipboardFeatureMask); + if ((mask & (CLIPRDR_FLAG_REMOTE_TO_LOCAL | CLIPRDR_FLAG_REMOTE_TO_LOCAL_FILES)) == 0) + { + WLog_WARN(TAG, "remote -> local copy disabled, ignoring request"); + return CHANNEL_RC_OK; + } + s = cliprdr_packet_new(CB_FORMAT_DATA_REQUEST, 0, 4); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Write_UINT32(s, formatDataRequest->requestedFormatId); /* requestedFormatId (4 bytes) */ + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientFormatDataRequest"); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_client_format_data_response(CliprdrClientContext* context, + const CLIPRDR_FORMAT_DATA_RESPONSE* formatDataResponse) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(formatDataResponse); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + const UINT32 mask = + freerdp_settings_get_uint32(context->rdpcontext->settings, FreeRDP_ClipboardFeatureMask); + WINPR_ASSERT((mask & (CLIPRDR_FLAG_LOCAL_TO_REMOTE | CLIPRDR_FLAG_LOCAL_TO_REMOTE_FILES)) != 0); + + s = cliprdr_packet_new(CB_FORMAT_DATA_RESPONSE, formatDataResponse->common.msgFlags, + formatDataResponse->common.dataLen); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + Stream_Write(s, formatDataResponse->requestedFormatData, formatDataResponse->common.dataLen); + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientFormatDataResponse"); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_client_file_contents_request(CliprdrClientContext* context, + const CLIPRDR_FILE_CONTENTS_REQUEST* fileContentsRequest) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(fileContentsRequest); + + const UINT32 mask = + freerdp_settings_get_uint32(context->rdpcontext->settings, FreeRDP_ClipboardFeatureMask); + if ((mask & CLIPRDR_FLAG_REMOTE_TO_LOCAL_FILES) == 0) + { + WLog_WARN(TAG, "remote -> local file copy disabled, ignoring request"); + return CHANNEL_RC_OK; + } + + cliprdr = (cliprdrPlugin*)context->handle; + if (!cliprdr) + return ERROR_INTERNAL_ERROR; + + if (!cliprdr->hasHugeFileSupport) + { + if (((UINT64)fileContentsRequest->cbRequested + fileContentsRequest->nPositionLow) > + UINT32_MAX) + return ERROR_INVALID_PARAMETER; + if (fileContentsRequest->nPositionHigh != 0) + return ERROR_INVALID_PARAMETER; + } + + s = cliprdr_packet_file_contents_request_new(fileContentsRequest); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_file_contents_request_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientFileContentsRequest: streamId: 0x%08" PRIX32 "", + fileContentsRequest->streamId); + return cliprdr_packet_send(cliprdr, s); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT +cliprdr_client_file_contents_response(CliprdrClientContext* context, + const CLIPRDR_FILE_CONTENTS_RESPONSE* fileContentsResponse) +{ + wStream* s = NULL; + cliprdrPlugin* cliprdr = NULL; + + WINPR_ASSERT(context); + WINPR_ASSERT(fileContentsResponse); + + cliprdr = (cliprdrPlugin*)context->handle; + WINPR_ASSERT(cliprdr); + + const UINT32 mask = + freerdp_settings_get_uint32(context->rdpcontext->settings, FreeRDP_ClipboardFeatureMask); + if ((mask & CLIPRDR_FLAG_LOCAL_TO_REMOTE_FILES) == 0) + return cliprdr_send_error_response(cliprdr, CB_FILECONTENTS_RESPONSE); + + s = cliprdr_packet_file_contents_response_new(fileContentsResponse); + + if (!s) + { + WLog_ERR(TAG, "cliprdr_packet_file_contents_response_new failed!"); + return ERROR_INTERNAL_ERROR; + } + + WLog_Print(cliprdr->log, WLOG_DEBUG, "ClientFileContentsResponse: streamId: 0x%08" PRIX32 "", + fileContentsResponse->streamId); + return cliprdr_packet_send(cliprdr, s); +} + +static VOID VCAPITYPE cliprdr_virtual_channel_open_event_ex(LPVOID lpUserParam, DWORD openHandle, + UINT event, LPVOID pData, + UINT32 dataLength, UINT32 totalLength, + UINT32 dataFlags) +{ + UINT error = CHANNEL_RC_OK; + cliprdrPlugin* cliprdr = (cliprdrPlugin*)lpUserParam; + + switch (event) + { + case CHANNEL_EVENT_DATA_RECEIVED: + if (!cliprdr || (cliprdr->OpenHandle != openHandle)) + { + WLog_ERR(TAG, "error no match"); + return; + } + if ((error = channel_client_post_message(cliprdr->MsgsHandle, pData, dataLength, + totalLength, dataFlags))) + WLog_ERR(TAG, "failed with error %" PRIu32 "", error); + + break; + + case CHANNEL_EVENT_WRITE_CANCELLED: + case CHANNEL_EVENT_WRITE_COMPLETE: + { + wStream* s = (wStream*)pData; + Stream_Free(s, TRUE); + } + break; + + case CHANNEL_EVENT_USER: + break; + } + + if (error && cliprdr && cliprdr->context->rdpcontext) + setChannelError(cliprdr->context->rdpcontext, error, + "cliprdr_virtual_channel_open_event_ex reported an error"); +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_virtual_channel_event_connected(cliprdrPlugin* cliprdr, LPVOID pData, + UINT32 dataLength) +{ + DWORD status = 0; + WINPR_ASSERT(cliprdr); + WINPR_ASSERT(cliprdr->context); + + WINPR_ASSERT(cliprdr->channelEntryPoints.pVirtualChannelOpenEx); + status = cliprdr->channelEntryPoints.pVirtualChannelOpenEx( + cliprdr->InitHandle, &cliprdr->OpenHandle, cliprdr->channelDef.name, + cliprdr_virtual_channel_open_event_ex); + if (status != CHANNEL_RC_OK) + return status; + + cliprdr->MsgsHandle = channel_client_create_handler( + cliprdr->context->rdpcontext, cliprdr, cliprdr_order_recv, CLIPRDR_SVC_CHANNEL_NAME); + if (!cliprdr->MsgsHandle) + return ERROR_INTERNAL_ERROR; + + return status; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_virtual_channel_event_disconnected(cliprdrPlugin* cliprdr) +{ + UINT rc = 0; + + WINPR_ASSERT(cliprdr); + + channel_client_quit_handler(cliprdr->MsgsHandle); + cliprdr->MsgsHandle = NULL; + + if (cliprdr->OpenHandle == 0) + return CHANNEL_RC_OK; + + WINPR_ASSERT(cliprdr->channelEntryPoints.pVirtualChannelCloseEx); + rc = cliprdr->channelEntryPoints.pVirtualChannelCloseEx(cliprdr->InitHandle, + cliprdr->OpenHandle); + + if (CHANNEL_RC_OK != rc) + { + WLog_ERR(TAG, "pVirtualChannelClose failed with %s [%08" PRIX32 "]", WTSErrorToString(rc), + rc); + return rc; + } + + cliprdr->OpenHandle = 0; + + return CHANNEL_RC_OK; +} + +/** + * Function description + * + * @return 0 on success, otherwise a Win32 error code + */ +static UINT cliprdr_virtual_channel_event_terminated(cliprdrPlugin* cliprdr) +{ + WINPR_ASSERT(cliprdr); + + cliprdr->InitHandle = 0; + free(cliprdr->context); + free(cliprdr); + return CHANNEL_RC_OK; +} + +static VOID VCAPITYPE cliprdr_virtual_channel_init_event_ex(LPVOID lpUserParam, LPVOID pInitHandle, + UINT event, LPVOID pData, + UINT dataLength) +{ + UINT error = CHANNEL_RC_OK; + cliprdrPlugin* cliprdr = (cliprdrPlugin*)lpUserParam; + + if (!cliprdr || (cliprdr->InitHandle != pInitHandle)) + { + WLog_ERR(TAG, "error no match"); + return; + } + + switch (event) + { + case CHANNEL_EVENT_CONNECTED: + if ((error = cliprdr_virtual_channel_event_connected(cliprdr, pData, dataLength))) + WLog_ERR(TAG, + "cliprdr_virtual_channel_event_connected failed with error %" PRIu32 "!", + error); + + break; + + case CHANNEL_EVENT_DISCONNECTED: + if ((error = cliprdr_virtual_channel_event_disconnected(cliprdr))) + WLog_ERR(TAG, + "cliprdr_virtual_channel_event_disconnected failed with error %" PRIu32 + "!", + error); + + break; + + case CHANNEL_EVENT_TERMINATED: + if ((error = cliprdr_virtual_channel_event_terminated(cliprdr))) + WLog_ERR(TAG, + "cliprdr_virtual_channel_event_terminated failed with error %" PRIu32 "!", + error); + + break; + } + + if (error && cliprdr->context->rdpcontext) + setChannelError(cliprdr->context->rdpcontext, error, + "cliprdr_virtual_channel_init_event reported an error"); +} + +/* cliprdr is always built-in */ +#define VirtualChannelEntryEx cliprdr_VirtualChannelEntryEx + +FREERDP_ENTRY_POINT(BOOL VCAPITYPE VirtualChannelEntryEx(PCHANNEL_ENTRY_POINTS pEntryPoints, + PVOID pInitHandle)) +{ + UINT rc = 0; + cliprdrPlugin* cliprdr = NULL; + CliprdrClientContext* context = NULL; + CHANNEL_ENTRY_POINTS_FREERDP_EX* pEntryPointsEx = NULL; + cliprdr = (cliprdrPlugin*)calloc(1, sizeof(cliprdrPlugin)); + + if (!cliprdr) + { + WLog_ERR(TAG, "calloc failed!"); + return FALSE; + } + + cliprdr->channelDef.options = CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP | + CHANNEL_OPTION_COMPRESS_RDP | CHANNEL_OPTION_SHOW_PROTOCOL; + sprintf_s(cliprdr->channelDef.name, ARRAYSIZE(cliprdr->channelDef.name), + CLIPRDR_SVC_CHANNEL_NAME); + pEntryPointsEx = (CHANNEL_ENTRY_POINTS_FREERDP_EX*)pEntryPoints; + WINPR_ASSERT(pEntryPointsEx); + + if ((pEntryPointsEx->cbSize >= sizeof(CHANNEL_ENTRY_POINTS_FREERDP_EX)) && + (pEntryPointsEx->MagicNumber == FREERDP_CHANNEL_MAGIC_NUMBER)) + { + context = (CliprdrClientContext*)calloc(1, sizeof(CliprdrClientContext)); + + if (!context) + { + free(cliprdr); + WLog_ERR(TAG, "calloc failed!"); + return FALSE; + } + + context->handle = (void*)cliprdr; + context->custom = NULL; + context->ClientCapabilities = cliprdr_client_capabilities; + context->TempDirectory = cliprdr_temp_directory; + context->ClientFormatList = cliprdr_client_format_list; + context->ClientFormatListResponse = cliprdr_client_format_list_response; + context->ClientLockClipboardData = cliprdr_client_lock_clipboard_data; + context->ClientUnlockClipboardData = cliprdr_client_unlock_clipboard_data; + context->ClientFormatDataRequest = cliprdr_client_format_data_request; + context->ClientFormatDataResponse = cliprdr_client_format_data_response; + context->ClientFileContentsRequest = cliprdr_client_file_contents_request; + context->ClientFileContentsResponse = cliprdr_client_file_contents_response; + cliprdr->context = context; + context->rdpcontext = pEntryPointsEx->context; + } + + cliprdr->log = WLog_Get(CHANNELS_TAG("channels.cliprdr.client")); + WLog_Print(cliprdr->log, WLOG_DEBUG, "VirtualChannelEntryEx"); + CopyMemory(&(cliprdr->channelEntryPoints), pEntryPoints, + sizeof(CHANNEL_ENTRY_POINTS_FREERDP_EX)); + cliprdr->InitHandle = pInitHandle; + rc = cliprdr->channelEntryPoints.pVirtualChannelInitEx( + cliprdr, context, pInitHandle, &cliprdr->channelDef, 1, VIRTUAL_CHANNEL_VERSION_WIN2000, + cliprdr_virtual_channel_init_event_ex); + + if (CHANNEL_RC_OK != rc) + { + WLog_ERR(TAG, "pVirtualChannelInit failed with %s [%08" PRIX32 "]", WTSErrorToString(rc), + rc); + free(cliprdr->context); + free(cliprdr); + return FALSE; + } + + cliprdr->channelEntryPoints.pInterface = context; + return TRUE; +} |