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Merge pull request #3194 from nfedera/fix-convertfromunicode-hardening

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ConvertFromUnicode fixes and misc hardening
This commit is contained in:
Hardening 2016-03-04 11:19:00 +01:00
commit fb63dd267c
15 changed files with 846 additions and 117 deletions
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32
channels/cliprdr/client/cliprdr_format.c
View File

@ -102,16 +102,25 @@ UINT cliprdr_process_format_list(cliprdrPlugin* cliprdr, wStream* s, UINT32 data
formats[index].formatName = NULL;
/* According to MS-RDPECLIP 2.2.3.1.1.1 formatName is "a 32-byte block containing
* the *null-terminated* name assigned to the Clipboard Format: (32 ASCII 8 characters
* or 16 Unicode characters)"
* However, both Windows RDSH and mstsc violate this specs as seen in the following
* example of a transferred short format name string: [R.i.c.h. .T.e.x.t. .F.o.r.m.a.t.]
* These are 16 unicode charaters - *without* terminating null !
*/
if (asciiNames)
{
szFormatName = (char*) Stream_Pointer(s);
if (szFormatName[0])
{
/* ensure null termination */
formats[index].formatName = (char*) malloc(32 + 1);
if (!formats[index].formatName)
{
WLog_ERR(TAG, "calloc failed!");
WLog_ERR(TAG, "malloc failed!");
error = CHANNEL_RC_NO_MEMORY;
goto error_out;
}
@ -125,8 +134,16 @@ UINT cliprdr_process_format_list(cliprdrPlugin* cliprdr, wStream* s, UINT32 data
if (wszFormatName[0])
{
ConvertFromUnicode(CP_UTF8, 0, wszFormatName,
16, &(formats[index].formatName), 0, NULL, NULL);
/* ConvertFromUnicode always returns a null-terminated
* string on success, even if the source string isn't.
*/
if (ConvertFromUnicode(CP_UTF8, 0, wszFormatName, 16,
&(formats[index].formatName), 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert short clipboard format name");
error = ERROR_INTERNAL_ERROR;
goto error_out;
}
}
}
@ -185,8 +202,13 @@ UINT cliprdr_process_format_list(cliprdrPlugin* cliprdr, wStream* s, UINT32 data
if (formatNameLength)
{
ConvertFromUnicode(CP_UTF8, 0, wszFormatName,
-1, &(formats[index].formatName), 0, NULL, NULL);
if (ConvertFromUnicode(CP_UTF8, 0, wszFormatName, -1,
&(formats[index].formatName), 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert long clipboard format name");
error = ERROR_INTERNAL_ERROR;
goto error_out;
}
}
Stream_Seek(s, (formatNameLength + 1) * 2);

39
channels/cliprdr/server/cliprdr_main.c
View File

@ -597,8 +597,12 @@ static UINT cliprdr_server_receive_temporary_directory(CliprdrServerContext* con
free(cliprdr->temporaryDirectory);
cliprdr->temporaryDirectory = NULL;
ConvertFromUnicode(CP_UTF8, 0, wszTempDir, -1,
&(cliprdr->temporaryDirectory), 0, NULL, NULL);
if (ConvertFromUnicode(CP_UTF8, 0, wszTempDir, -1,
&(cliprdr->temporaryDirectory), 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert temporary directory name");
return ERROR_INVALID_DATA;
}
length = strlen(cliprdr->temporaryDirectory);
@ -680,12 +684,21 @@ static UINT cliprdr_server_receive_format_list(CliprdrServerContext* context, wS
formats[index].formatName = NULL;
/* According to MS-RDPECLIP 2.2.3.1.1.1 formatName is "a 32-byte block containing
* the *null-terminated* name assigned to the Clipboard Format: (32 ASCII 8 characters
* or 16 Unicode characters)"
* However, both Windows RDSH and mstsc violate this specs as seen in the following
* example of a transferred short format name string: [R.i.c.h. .T.e.x.t. .F.o.r.m.a.t.]
* These are 16 unicode charaters - *without* terminating null !
*/
if (asciiNames)
{
szFormatName = (char*) Stream_Pointer(s);
if (szFormatName[0])
{
/* ensure null termination */
formats[index].formatName = (char*) malloc(32 + 1);
CopyMemory(formats[index].formatName, szFormatName, 32);
formats[index].formatName[32] = '\0';
@ -697,8 +710,16 @@ static UINT cliprdr_server_receive_format_list(CliprdrServerContext* context, wS
if (wszFormatName[0])
{
ConvertFromUnicode(CP_UTF8, 0, wszFormatName,
16, &(formats[index].formatName), 0, NULL, NULL);
/* ConvertFromUnicode always returns a null-terminated
* string on success, even if the source string isn't.
*/
if (ConvertFromUnicode(CP_UTF8, 0, wszFormatName, 16,
&(formats[index].formatName), 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert short clipboard format name");
error = ERROR_INVALID_DATA;
goto out;
}
}
}
@ -757,8 +778,13 @@ static UINT cliprdr_server_receive_format_list(CliprdrServerContext* context, wS
if (formatNameLength)
{
ConvertFromUnicode(CP_UTF8, 0, wszFormatName,
-1, &(formats[index].formatName), 0, NULL, NULL);
if (ConvertFromUnicode(CP_UTF8, 0, wszFormatName, -1,
&(formats[index].formatName), 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert long clipboard format name");
error = ERROR_INVALID_DATA;
goto out;
}
}
Stream_Seek(s, (formatNameLength + 1) * 2);
@ -775,6 +801,7 @@ static UINT cliprdr_server_receive_format_list(CliprdrServerContext* context, wS
if (error)
WLog_ERR(TAG, "ClientFormatList failed with error %lu!", error);
out:
for (index = 0; index < formatList.numFormats; index++)
{
free(formatList.formats[index].formatName);

21
channels/echo/server/echo_main.c
View File

@ -116,12 +116,15 @@ static void* echo_server_thread_func(void* arg)
DWORD BytesReturned = 0;
echo_server* echo = (echo_server*) arg;
UINT error;
DWORD status;
DWORD status;
if ((error = echo_server_open_channel(echo)))
{
IFCALLRET(echo->context.OpenResult, error, &echo->context, ECHO_SERVER_OPEN_RESULT_NOTSUPPORTED);
UINT error2 = 0;
WLog_ERR(TAG, "echo_server_open_channel failed with error %lu!", error);
IFCALLRET(echo->context.OpenResult, error2, &echo->context, ECHO_SERVER_OPEN_RESULT_NOTSUPPORTED);
if (error2)
WLog_ERR(TAG, "echo server's OpenResult callback failed with error %lu", error2);
goto out;
}
@ -145,14 +148,14 @@ static void* echo_server_thread_func(void* arg)
while (1)
{
status = WaitForMultipleObjects(nCount, events, FALSE, 100);
status = WaitForMultipleObjects(nCount, events, FALSE, 100);
if (status == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForMultipleObjects failed with error %lu", error);
break;
}
if (status == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForMultipleObjects failed with error %lu", error);
break;
}
if (status == WAIT_OBJECT_0)
{

51
channels/rdpdr/server/rdpdr_main.c
View File

@ -152,9 +152,10 @@ static UINT rdpdr_server_receive_client_name_request(RdpdrServerContext* context
Stream_Seek_UINT32(s); /* CodePage (4 bytes), MUST be set to zero */
Stream_Read_UINT32(s, ComputerNameLen); /* ComputerNameLen (4 bytes) */
if (Stream_GetRemainingLength(s) < ComputerNameLen)
if (UnicodeFlag > 1) /* must be 0x00000000 or 0x00000001 */
{
WLog_ERR(TAG, "not enough data in stream!");
WLog_ERR(TAG, "invalid UnicodeFlag value: 0x%08X", UnicodeFlag);
return ERROR_INVALID_DATA;
}
@ -164,6 +165,39 @@ static UINT rdpdr_server_receive_client_name_request(RdpdrServerContext* context
* not in characters, including the NULL terminator!
*/
if (UnicodeFlag)
{
if ((ComputerNameLen % 2) || ComputerNameLen > 512 || ComputerNameLen < 2)
{
WLog_ERR(TAG, "invalid unicode computer name length: %u", ComputerNameLen);
return ERROR_INVALID_DATA;
}
}
else
{
if (ComputerNameLen > 256 || ComputerNameLen < 1)
{
WLog_ERR(TAG, "invalid ascii computer name length: %u", 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);
@ -172,12 +206,21 @@ static UINT rdpdr_server_receive_client_name_request(RdpdrServerContext* context
if (UnicodeFlag)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s),
-1, &(context->priv->ClientComputerName), 0, NULL, NULL);
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);

14
channels/smartcard/client/smartcard_pack.c
View File

@ -707,7 +707,12 @@ void smartcard_trace_list_readers_return(SMARTCARD_DEVICE* smartcard, ListReader
if (unicode)
{
length = ret->cBytes / 2;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) ret->msz, (int)length, &mszA, 0, NULL, NULL);
if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) ret->msz, (int)length,
&mszA, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "ConvertFromUnicode failed");
return;
}
}
else
{
@ -1767,7 +1772,12 @@ void smartcard_trace_status_return(SMARTCARD_DEVICE* smartcard, Status_Return* r
if (unicode)
{
length = ret->cBytes / 2;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) ret->mszReaderNames, (int)length, &mszReaderNamesA, 0, NULL, NULL);
if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) ret->mszReaderNames, (int)length,
&mszReaderNamesA, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "ConvertFromUnicode failed");
return;
}
}
else
{

41
client/Windows/wf_rail.c
View File

@ -456,14 +456,33 @@ static BOOL wf_rail_window_common(rdpContext* context, WINDOW_ORDER_INFO* orderI
{
char* title = NULL;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL);
if (windowState->titleInfo.length == 0)
{
if (!(title = _strdup("")))
{
WLog_ERR(TAG, "failed to duplicate empty window title string");
/* error handled below */
}
}
else if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert window title");
/* error handled below */
}
railWindow->title = title;
}
else
{
railWindow->title = _strdup("RdpRailWindow");
if (!(railWindow->title = _strdup("RdpRailWindow")))
WLog_ERR(TAG, "failed to duplicate default window title string");
}
if (!railWindow->title)
{
free(railWindow);
return FALSE;
}
ConvertToUnicode(CP_UTF8, 0, railWindow->title, -1, &titleW, 0);
@ -569,8 +588,20 @@ static BOOL wf_rail_window_common(rdpContext* context, WINDOW_ORDER_INFO* orderI
char* title = NULL;
WCHAR* titleW = NULL;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL);
if (windowState->titleInfo.length == 0)
{
if (!(title = _strdup("")))
{
WLog_ERR(TAG, "failed to duplicate empty window title string");
return FALSE;
}
}
else if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert window title");
return FALSE;
}
free(railWindow->title);
railWindow->title = title;

37
client/X11/xf_rail.c
View File

@ -290,15 +290,29 @@ static BOOL xf_rail_window_common(rdpContext* context, WINDOW_ORDER_INFO* orderI
{
char* title = NULL;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL);
if (windowState->titleInfo.length == 0)
{
if (!(title = _strdup("")))
{
WLog_ERR(TAG, "failed to duplicate empty window title string");
/* error handled below */
}
}
else if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert window title");
/* error handled below */
}
appWindow->title = title;
}
else
{
appWindow->title = _strdup("RdpRailWindow");
if (!(appWindow->title = _strdup("RdpRailWindow")))
WLog_ERR(TAG, "failed to duplicate default window title string");
}
if (!appWindow->title)
{
free(appWindow);
@ -365,9 +379,20 @@ static BOOL xf_rail_window_common(rdpContext* context, WINDOW_ORDER_INFO* orderI
{
char* title = NULL;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL);
if (windowState->titleInfo.length == 0)
{
if (!(title = _strdup("")))
{
WLog_ERR(TAG, "failed to duplicate empty window title string");
return FALSE;
}
}
else if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,
windowState->titleInfo.length / 2, &title, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert window title");
return FALSE;
}
free(appWindow->title);
appWindow->title = title;
}

16
libfreerdp/core/gcc.c
View File

@ -590,7 +590,12 @@ BOOL gcc_read_client_core_data(wStream* s, rdpMcs* mcs, UINT16 blockLength)
Stream_Read_UINT32(s, settings->ClientBuild); /* ClientBuild (4 bytes) */
/* clientName (32 bytes, null-terminated unicode, truncated to 15 characters) */
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), 32 / 2, &str, 0, NULL, NULL);
if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), 32 / 2,
&str, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert client host name");
return FALSE;
}
Stream_Seek(s, 32);
free(settings->ClientHostname);
settings->ClientHostname = str;
@ -644,10 +649,17 @@ BOOL gcc_read_client_core_data(wStream* s, rdpMcs* mcs, UINT16 blockLength)
settings->EarlyCapabilityFlags = (UINT32) earlyCapabilityFlags;
blockLength -= 2;
/* clientDigProductId (64 bytes): Contains a value that uniquely identifies the client */
if (blockLength < 64)
break;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), 64 / 2, &str, 0, NULL, NULL);
if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), 64 / 2,
&str, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert the client product identifier");
return FALSE;
}
Stream_Seek(s, 64); /* clientDigProductId (64 bytes) */
free(settings->ClientProductId);
settings->ClientProductId = str;

296
libfreerdp/core/info.c
View File

@ -199,6 +199,7 @@ BOOL rdp_read_extended_info_packet(rdpRdp* rdp, wStream* s)
UINT16 cbClientDir;
UINT16 cbAutoReconnectLen;
rdpSettings* settings = rdp->settings;
WCHAR* wstr;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
@ -206,6 +207,17 @@ BOOL rdp_read_extended_info_packet(rdpRdp* rdp, wStream* s)
Stream_Read_UINT16(s, clientAddressFamily); /* clientAddressFamily (2 bytes) */
Stream_Read_UINT16(s, cbClientAddress); /* cbClientAddress (2 bytes) */
/* cbClientAddress is the size in bytes of the character data in the clientAddress field.
* This size includes the length of the mandatory null terminator.
* The maximum allowed value is 80 bytes
*/
if ((cbClientAddress % 2) || cbClientAddress < 2 || cbClientAddress > 80)
{
WLog_ERR(TAG, "protocol error: invalid cbClientAddress value: %u", cbClientAddress);
return FALSE;
}
settings->IPv6Enabled = (clientAddressFamily == ADDRESS_FAMILY_INET6 ? TRUE : FALSE);
if (Stream_GetRemainingLength(s) < cbClientAddress)
@ -217,7 +229,17 @@ BOOL rdp_read_extended_info_packet(rdpRdp* rdp, wStream* s)
settings->ClientAddress = NULL;
}
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbClientAddress / 2, &settings->ClientAddress, 0, NULL, NULL);
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbClientAddress / 2 - 1])
{
WLog_ERR(TAG, "protocol error: clientAddress must be null terminated");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &settings->ClientAddress, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert client address");
return FALSE;
}
Stream_Seek(s, cbClientAddress);
if (Stream_GetRemainingLength(s) < 2)
@ -225,6 +247,17 @@ BOOL rdp_read_extended_info_packet(rdpRdp* rdp, wStream* s)
Stream_Read_UINT16(s, cbClientDir); /* cbClientDir (2 bytes) */
/* cbClientDir is the size in bytes of the character data in the clientDir field.
* This size includes the length of the mandatory null terminator.
* The maximum allowed value is 512 bytes
*/
if ((cbClientDir % 2) || cbClientDir < 2 || cbClientDir > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbClientDir value: %u", cbClientDir);
return FALSE;
}
if (Stream_GetRemainingLength(s) < cbClientDir)
return FALSE;
@ -234,7 +267,17 @@ BOOL rdp_read_extended_info_packet(rdpRdp* rdp, wStream* s)
settings->ClientDir = NULL;
}
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbClientDir / 2, &settings->ClientDir, 0, NULL, NULL);
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbClientDir / 2 - 1])
{
WLog_ERR(TAG, "protocol error: clientDir must be null terminated");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), -1, &settings->ClientDir, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert client directory");
return FALSE;
}
Stream_Seek(s, cbClientDir);
if (!rdp_read_client_time_zone(s, settings))
@ -337,6 +380,7 @@ BOOL rdp_read_info_packet(rdpRdp* rdp, wStream* s)
UINT16 cbWorkingDir;
UINT32 CompressionLevel;
rdpSettings* settings = rdp->settings;
WCHAR* wstr;
if (Stream_GetRemainingLength(s) < 18)
return FALSE;
@ -357,6 +401,12 @@ BOOL rdp_read_info_packet(rdpRdp* rdp, wStream* s)
settings->CompressionLevel = CompressionLevel;
}
if (!(flags & INFO_UNICODE))
{
WLog_ERR(TAG, "Client without INFO_UNICODE flag: this is currently not supported");
return FALSE;
}
Stream_Read_UINT16(s, cbDomain); /* cbDomain (2 bytes) */
Stream_Read_UINT16(s, cbUserName); /* cbUserName (2 bytes) */
Stream_Read_UINT16(s, cbPassword); /* cbPassword (2 bytes) */
@ -368,7 +418,26 @@ BOOL rdp_read_info_packet(rdpRdp* rdp, wStream* s)
if (cbDomain > 0)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbDomain / 2, &settings->Domain, 0, NULL, NULL);
/* cbDomain is the size in bytes of the character data in the Domain field.
* This size excludes (!) the length of the mandatory null terminator.
* Maximum value including the mandatory null terminator: 512
*/
if ((cbDomain % 2) || cbDomain > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbDomain value: %u", cbDomain);
return FALSE;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbDomain / 2])
{
WLog_ERR(TAG, "protocol error: Domain must be null terminated");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &settings->Domain, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert Domain string");
return FALSE;
}
Stream_Seek(s, cbDomain);
}
Stream_Seek(s, 2);
@ -378,7 +447,26 @@ BOOL rdp_read_info_packet(rdpRdp* rdp, wStream* s)
if (cbUserName > 0)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbUserName / 2, &settings->Username, 0, NULL, NULL);
/* cbUserName is the size in bytes of the character data in the UserName field.
* This size excludes (!) the length of the mandatory null terminator.
* Maximum value including the mandatory null terminator: 512
*/
if ((cbUserName % 2) || cbUserName > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbUserName value: %u", cbUserName);
return FALSE;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbUserName / 2])
{
WLog_ERR(TAG, "protocol error: UserName must be null terminated");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &settings->Username, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert UserName string");
return FALSE;
}
Stream_Seek(s, cbUserName);
}
Stream_Seek(s, 2);
@ -388,7 +476,26 @@ BOOL rdp_read_info_packet(rdpRdp* rdp, wStream* s)
if (cbPassword > 0)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbPassword / 2, &settings->Password, 0, NULL, NULL);
/* cbPassword is the size in bytes of the character data in the Password field.
* This size excludes (!) the length of the mandatory null terminator.
* Maximum value including the mandatory null terminator: 512
*/
if ((cbPassword % 2) || cbPassword > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbPassword value: %u", cbPassword);
return FALSE;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbPassword / 2])
{
WLog_ERR(TAG, "protocol error: Password must be null terminated");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &settings->Password, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert Password string");
return FALSE;
}
Stream_Seek(s, cbPassword);
}
Stream_Seek(s, 2);
@ -398,7 +505,26 @@ BOOL rdp_read_info_packet(rdpRdp* rdp, wStream* s)
if (cbAlternateShell > 0)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbAlternateShell / 2, &settings->AlternateShell, 0, NULL, NULL);
/* cbAlternateShell is the size in bytes of the character data in the AlternateShell field.
* This size excludes (!) the length of the mandatory null terminator.
* Maximum value including the mandatory null terminator: 512
*/
if ((cbAlternateShell % 2) || cbAlternateShell > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbAlternateShell value: %u", cbAlternateShell);
return FALSE;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbAlternateShell / 2])
{
WLog_ERR(TAG, "protocol error: AlternateShell must be null terminated");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &settings->AlternateShell, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert AlternateShell string");
return FALSE;
}
Stream_Seek(s, cbAlternateShell);
}
Stream_Seek(s, 2);
@ -408,7 +534,26 @@ BOOL rdp_read_info_packet(rdpRdp* rdp, wStream* s)
if (cbWorkingDir > 0)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbWorkingDir / 2, &settings->ShellWorkingDirectory, 0, NULL, NULL);
/* cbWorkingDir is the size in bytes of the character data in the WorkingDir field.
* This size excludes (!) the length of the mandatory null terminator.
* Maximum value including the mandatory null terminator: 512
*/
if ((cbWorkingDir % 2) || cbWorkingDir > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbWorkingDir value: %u", cbWorkingDir);
return FALSE;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbWorkingDir / 2])
{
WLog_ERR(TAG, "protocol error: WorkingDir must be null terminated");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &settings->ShellWorkingDirectory, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "failed to convert AlternateShell string");
return FALSE;
}
Stream_Seek(s, cbWorkingDir);
}
Stream_Seek(s, 2);
@ -664,6 +809,7 @@ BOOL rdp_recv_logon_info_v1(rdpRdp* rdp, wStream* s, logon_info *info)
{
UINT32 cbDomain;
UINT32 cbUserName;
WCHAR* wstr;
ZeroMemory(info, sizeof(*info));
@ -671,35 +817,68 @@ BOOL rdp_recv_logon_info_v1(rdpRdp* rdp, wStream* s, logon_info *info)
return FALSE;
Stream_Read_UINT32(s, cbDomain); /* cbDomain (4 bytes) */
if (cbDomain > 52)
return FALSE;
/* cbDomain is the size of the Unicode character data (including the mandatory
* null terminator) in bytes present in the fixed-length (52 bytes) Domain field
*/
if (cbDomain)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbDomain, &info->domain, 0, NULL, FALSE);
if (!info->domain)
return FALSE;
if ((cbDomain % 2) || cbDomain > 52)
{
WLog_ERR(TAG, "protocol error: invalid cbDomain value: %lu", cbDomain);
goto fail;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbDomain / 2 - 1])
{
WLog_ERR(TAG, "protocol error: Domain must be null terminated");
goto fail;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &info->domain, 0, NULL, FALSE) < 1)
{
WLog_ERR(TAG, "failed to convert the Domain string");
goto fail;
}
}
Stream_Seek(s, 52); /* domain (52 bytes) */
Stream_Read_UINT32(s, cbUserName); /* cbUserName (4 bytes) */
if (cbUserName > 512)
goto error_username;
/* cbUserName is the size of the Unicode character data (including the mandatory
* null terminator) in bytes present in the fixed-length (512 bytes) UserName field.
*/
if (cbUserName)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbUserName, &info->username, 0, NULL, FALSE);
if (!info->username)
goto error_username;
if ((cbUserName % 2) || cbUserName > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbUserName value: %lu", cbUserName);
goto fail;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbUserName / 2 - 1])
{
WLog_ERR(TAG, "protocol error: UserName must be null terminated");
goto fail;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &info->username, 0, NULL, FALSE) < 1)
{
WLog_ERR(TAG, "failed to convert the UserName string");
goto fail;
}
}
Stream_Seek(s, 512); /* userName (512 bytes) */
Stream_Read_UINT32(s, info->sessionId); /* SessionId (4 bytes) */
WLog_DBG(TAG, "LogonInfoV1: SessionId: 0x%04X", info->sessionId);
WLog_DBG(TAG, "LogonInfoV1: SessionId: 0x%04X UserName: [%s] Domain: [%s]",
info->sessionId, info->username, info->domain);
return TRUE;
error_username:
fail:
free(info->username);
info->username = NULL;
free(info->domain);
info->domain = NULL;
return FALSE;
@ -711,6 +890,7 @@ BOOL rdp_recv_logon_info_v2(rdpRdp* rdp, wStream* s, logon_info *info)
UINT32 Size;
UINT32 cbDomain;
UINT32 cbUserName;
WCHAR* wstr;
ZeroMemory(info, sizeof(*info));
@ -724,32 +904,82 @@ BOOL rdp_recv_logon_info_v2(rdpRdp* rdp, wStream* s, logon_info *info)
Stream_Read_UINT32(s, cbUserName); /* cbUserName (4 bytes) */
Stream_Seek(s, 558); /* pad (558 bytes) */
if (Stream_GetRemainingLength(s) < (cbDomain + cbUserName))
return FALSE;
/* cbDomain is the size in bytes of the Unicode character data in the Domain field.
* The size of the mandatory null terminator is include in this value.
* Note: Since MS-RDPBCGR 2.2.10.1.1.2 does not mention any size limits we assume
* that the maximum value is 52 bytes, according to the fixed size of the
* Domain field in the Logon Info Version 1 (TS_LOGON_INFO) structure.
*/
if (cbDomain)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbDomain, &info->domain, 0, NULL, FALSE);
if (!info->domain)
return FALSE;
Stream_Seek(s, cbDomain); /* domain */
if ((cbDomain % 2) || cbDomain > 52)
{
WLog_ERR(TAG, "protocol error: invalid cbDomain value: %lu", cbDomain);
goto fail;
}
if (Stream_GetRemainingLength(s) < (size_t) cbDomain)
{
WLog_ERR(TAG, "insufficient remaining stream length");
goto fail;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbDomain / 2 - 1])
{
WLog_ERR(TAG, "protocol error: Domain field must be null terminated");
goto fail;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &info->domain, 0, NULL, FALSE) < 1)
{
WLog_ERR(TAG, "failed to convert the Domain string");
goto fail;
}
}
Stream_Seek(s, cbDomain); /* domain */
/* cbUserName is the size in bytes of the Unicode character data in the UserName field.
* The size of the mandatory null terminator is include in this value.
* Note: Since MS-RDPBCGR 2.2.10.1.1.2 does not mention any size limits we assume
* that the maximum value is 512 bytes, according to the fixed size of the
* Username field in the Logon Info Version 1 (TS_LOGON_INFO) structure.
*/
if (cbUserName)
{
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbUserName, &info->username, 0, NULL, FALSE);
if (!info->username)
if ((cbUserName % 2) || cbUserName < 2 || cbUserName > 512)
{
free(info->domain);
info->domain = NULL;
return FALSE;
WLog_ERR(TAG, "protocol error: invalid cbUserName value: %lu", cbUserName);
goto fail;
}
if (Stream_GetRemainingLength(s) < (size_t) cbUserName)
{
WLog_ERR(TAG, "insufficient remaining stream length");
goto fail;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[cbUserName / 2 - 1])
{
WLog_ERR(TAG, "protocol error: UserName field must be null terminated");
goto fail;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, &info->username, 0, NULL, FALSE) < 1)
{
WLog_ERR(TAG, "failed to convert the Domain string");
goto fail;
}
Stream_Seek(s, cbUserName); /* userName */
}
Stream_Seek(s, cbUserName); /* userName */
WLog_DBG(TAG, "LogonInfoV2: SessionId: 0x%04X", info->sessionId);
WLog_DBG(TAG, "LogonInfoV2: SessionId: 0x%04X UserName: [%s] Domain: [%s]",
info->sessionId, info->username, info->domain);
return TRUE;
fail:
free(info->username);
info->username = NULL;
free(info->domain);
info->domain = NULL;
return FALSE;
}
BOOL rdp_recv_logon_plain_notify(rdpRdp* rdp, wStream* s)

111
libfreerdp/core/redirection.c
View File

@ -30,7 +30,7 @@
#define TAG FREERDP_TAG("core.redirection")
void rdp_print_redirection_flags(UINT32 flags)
static void rdp_print_redirection_flags(UINT32 flags)
{
WLog_DBG(TAG, "redirectionFlags = {");
@ -76,9 +76,10 @@ void rdp_print_redirection_flags(UINT32 flags)
WLog_DBG(TAG, "}");
}
BOOL rdp_redirection_read_string(wStream* s, char** str)
static BOOL rdp_redirection_read_unicode_string(wStream* s, char** str, size_t maxLength)
{
UINT32 length;
WCHAR* wstr = NULL;
if (Stream_GetRemainingLength(s) < 4)
{
@ -88,13 +89,31 @@ BOOL rdp_redirection_read_string(wStream* s, char** str)
Stream_Read_UINT32(s, length);
if (Stream_GetRemainingLength(s) < length)
if ((length % 2) || length < 2 || length > maxLength)
{
WLog_ERR(TAG, "rdp_redirection_read_string failure: incorrect length %d", length);
WLog_ERR(TAG, "rdp_redirection_read_string failure: invalid unicode string length: %lu", length);
return FALSE;
}
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), length / 2, str, 0, NULL, NULL);
if (Stream_GetRemainingLength(s) < length)
{
WLog_ERR(TAG, "rdp_redirection_read_string failure: insufficient stream length (%lu bytes required)", length);
return FALSE;
}
wstr = (WCHAR*) Stream_Pointer(s);
if (wstr[length / 2 - 1])
{
WLog_ERR(TAG, "rdp_redirection_read_string failure: unterminated unicode string");
return FALSE;
}
if (ConvertFromUnicode(CP_UTF8, 0, wstr, -1, str, 0, NULL, NULL) < 1)
{
WLog_ERR(TAG, "rdp_redirection_read_string failure: string conversion failed");
return FALSE;
}
Stream_Seek(s, length);
return TRUE;
}
@ -173,7 +192,10 @@ int rdp_redirection_apply_settings(rdpRdp* rdp)
/* Password may be a cookie without a null terminator */
free(settings->RedirectionPassword);
settings->RedirectionPasswordLength = redirection->PasswordLength;
settings->RedirectionPassword = (BYTE*) malloc(settings->RedirectionPasswordLength);
/* For security reasons we'll allocate an additional zero WCHAR at the
* end of the buffer that is not included in RedirectionPasswordLength
*/
settings->RedirectionPassword = (BYTE*) calloc(1, settings->RedirectionPasswordLength + sizeof(WCHAR));
if (!settings->RedirectionPassword)
return -1;
CopyMemory(settings->RedirectionPassword, redirection->Password, settings->RedirectionPasswordLength);
@ -219,7 +241,7 @@ int rdp_redirection_apply_settings(rdpRdp* rdp)
return 0;
}
BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
static BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
{
UINT16 flags;
UINT16 length;
@ -238,14 +260,33 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
rdp_print_redirection_flags(redirection->flags);
/* Although MS-RDPBCGR does not mention any length constraints limits for the
* variable length null-terminated unicode strings in the RDP_SERVER_REDIRECTION_PACKET
* structure we will use the following limits in bytes including the null terminator:
*
* TargetNetAddress: 80 bytes
* UserName: 512 bytes
* Domain: 52 bytes
* Password(Cookie): 512 bytes
* TargetFQDN: 512 bytes
* TargetNetBiosName: 32 bytes
*/
if (redirection->flags & LB_TARGET_NET_ADDRESS)
{
if (!rdp_redirection_read_string(s, &(redirection->TargetNetAddress)))
if (!rdp_redirection_read_unicode_string(s, &(redirection->TargetNetAddress), 80))
return -1;
}
if (redirection->flags & LB_LOAD_BALANCE_INFO)
{
/* See [MSFT-SDLBTS] (a.k.a. TS_Session_Directory.doc)
* load balance info example data:
* 0000 43 6f 6f 6b 69 65 3a 20 6d 73 74 73 3d 32 31 33 Cookie: msts=213
* 0010 34 30 32 36 34 33 32 2e 31 35 36 32 39 2e 30 30 4026432.15629.00
* 0020 30 30 0d 0a 00..
*/
if (Stream_GetRemainingLength(s) < 4)
return -1;
@ -265,7 +306,7 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
if (redirection->flags & LB_USERNAME)
{
if (!rdp_redirection_read_string(s, &(redirection->Username)))
if (!rdp_redirection_read_unicode_string(s, &(redirection->Username), 512))
return -1;
WLog_DBG(TAG, "Username: %s", redirection->Username);
@ -273,7 +314,7 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
if (redirection->flags & LB_DOMAIN)
{
if (!rdp_redirection_read_string(s, &(redirection->Domain)))
if (!rdp_redirection_read_unicode_string(s, &(redirection->Domain), 52))
return FALSE;
WLog_DBG(TAG, "Domain: %s", redirection->Domain);
@ -281,12 +322,45 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
if (redirection->flags & LB_PASSWORD)
{
/* Note: length (hopefully) includes double zero termination */
/* Note: Password is a variable-length array of bytes containing the
* password used by the user in Unicode format, including a null-terminator
* or (!) or a cookie value that MUST be passed to the target server on
* successful connection.
* Since the format of the password cookie (probably some salted hash) is
* currently unknown we'll treat it as opaque data. All cookies seen so far
* are 120 bytes including \0\0 termination.
* Here is an observed example of a redirection password cookie:
*
* 0000 02 00 00 80 44 53 48 4c 60 ab 69 2f 07 d6 9e 2d ....DSHL`.i/...-
* 0010 f0 3a 97 3b a9 c5 ec 7e 66 bd b3 84 6c b1 ef b9 .:.;...~f...l...
* 0020 b6 82 4e cc 3a df 64 b7 7b 25 04 54 c2 58 98 f8 ..N.:.d.{%.T.X..
* 0030 97 87 d4 93 c7 c1 e1 5b c2 85 f8 22 49 1f 81 88 .......[..."I...
* 0040 43 44 83 f6 9a 72 40 24 dc 4d 43 cb d9 92 3c 8f CD...r@$.MC...<.
* 0050 3a 37 5c 77 13 a0 72 3c 72 08 64 2a 29 fb dc eb :7\w..r<r.d*)...
* 0060 0d 2b 06 b4 c6 08 b4 73 34 16 93 62 6d 24 e9 93 .+.....s4..bm$..
* 0070 97 27 7b dd 9a 72 00 00 .'{..r..
*
* Notwithstanding the above, we'll allocated an additional zero WCHAR at the
* end of the buffer which won't get counted in PasswordLength.
*/
if (Stream_GetRemainingLength(s) < 4)
return -1;
Stream_Read_UINT32(s, redirection->PasswordLength);
redirection->Password = (BYTE*) malloc(redirection->PasswordLength);
/* [MS-RDPBCGR] specifies 512 bytes as the upper limit for the password length
* including the null terminatior(s). This should also be enough for the unknown
* password cookie format (see previous comment).
*/
if (Stream_GetRemainingLength(s) < redirection->PasswordLength)
return -1;
if (redirection->PasswordLength > 512)
return -1;
redirection->Password = (BYTE*) calloc(1, redirection->PasswordLength + sizeof(WCHAR));
if (!redirection->Password)
return -1;
Stream_Read(s, redirection->Password, redirection->PasswordLength);
@ -297,7 +371,7 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
if (redirection->flags & LB_TARGET_FQDN)
{
if (!rdp_redirection_read_string(s, &(redirection->TargetFQDN)))
if (!rdp_redirection_read_unicode_string(s, &(redirection->TargetFQDN), 512))
return -1;
WLog_DBG(TAG, "TargetFQDN: %s", redirection->TargetFQDN);
@ -305,7 +379,7 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
if (redirection->flags & LB_TARGET_NETBIOS_NAME)
{
if (!rdp_redirection_read_string(s, &(redirection->TargetNetBiosName)))
if (!rdp_redirection_read_unicode_string(s, &(redirection->TargetNetBiosName), 32))
return -1;
WLog_DBG(TAG, "TargetNetBiosName: %s", redirection->TargetNetBiosName);
@ -352,7 +426,7 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
for (i = 0; i < (int) count; i++)
{
if (!rdp_redirection_read_string(s, &(redirection->TargetNetAddresses[i])))
if (!rdp_redirection_read_unicode_string(s, &(redirection->TargetNetAddresses[i]), 80))
return FALSE;
WLog_DBG(TAG, "TargetNetAddresses[%d]: %s", i, redirection->TargetNetAddresses[i]);
@ -371,13 +445,6 @@ BOOL rdp_recv_server_redirection_pdu(rdpRdp* rdp, wStream* s)
return 1;
}
int rdp_recv_redirection_packet(rdpRdp* rdp, wStream* s)
{
int status = 0;
status = rdp_recv_server_redirection_pdu(rdp, s);
return status;
}
int rdp_recv_enhanced_security_redirection_packet(rdpRdp* rdp, wStream* s)
{
int status = 0;

29
libfreerdp/core/window.c
View File

@ -371,6 +371,7 @@ BOOL update_recv_window_info_order(rdpUpdate* update, wStream* s, WINDOW_ORDER_I
{
rdpContext* context = update->context;
rdpWindowUpdate* window = update->window;
BOOL result = TRUE;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
@ -382,20 +383,20 @@ BOOL update_recv_window_info_order(rdpUpdate* update, wStream* s, WINDOW_ORDER_I
if (!update_read_window_icon_order(s, orderInfo, &window->window_icon))
return FALSE;
WLog_Print(update->log, WLOG_DEBUG, "WindowIcon");
IFCALL(window->WindowIcon, context, orderInfo, &window->window_icon);
IFCALLRET(window->WindowIcon, result, context, orderInfo, &window->window_icon);
}
else if (orderInfo->fieldFlags & WINDOW_ORDER_CACHED_ICON)
{
if (!update_read_window_cached_icon_order(s, orderInfo, &window->window_cached_icon))
return FALSE;
WLog_Print(update->log, WLOG_DEBUG, "WindowCachedIcon");
IFCALL(window->WindowCachedIcon, context, orderInfo, &window->window_cached_icon);
IFCALLRET(window->WindowCachedIcon, result, context, orderInfo, &window->window_cached_icon);
}
else if (orderInfo->fieldFlags & WINDOW_ORDER_STATE_DELETED)
{
update_read_window_delete_order(s, orderInfo);
WLog_Print(update->log, WLOG_DEBUG, "WindowDelete");
IFCALL(window->WindowDelete, context, orderInfo);
IFCALLRET(window->WindowDelete, result, context, orderInfo);
}
else
{
@ -405,16 +406,16 @@ BOOL update_recv_window_info_order(rdpUpdate* update, wStream* s, WINDOW_ORDER_I
if (orderInfo->fieldFlags & WINDOW_ORDER_STATE_NEW)
{
WLog_Print(update->log, WLOG_DEBUG, "WindowCreate");
IFCALL(window->WindowCreate, context, orderInfo, &window->window_state);
IFCALLRET(window->WindowCreate, result, context, orderInfo, &window->window_state);
}
else
{
WLog_Print(update->log, WLOG_DEBUG, "WindowUpdate");
IFCALL(window->WindowUpdate, context, orderInfo, &window->window_state);
IFCALLRET(window->WindowUpdate, result, context, orderInfo, &window->window_state);
}
}
return TRUE;
return result;
}
BOOL update_read_notification_icon_state_order(wStream* s, WINDOW_ORDER_INFO* orderInfo, NOTIFY_ICON_STATE_ORDER* notify_icon_state)
@ -470,6 +471,7 @@ BOOL update_recv_notification_icon_info_order(rdpUpdate* update, wStream* s, WIN
{
rdpContext* context = update->context;
rdpWindowUpdate* window = update->window;
BOOL result = TRUE;
if (Stream_GetRemainingLength(s) < 8)
return FALSE;
@ -481,7 +483,7 @@ BOOL update_recv_notification_icon_info_order(rdpUpdate* update, wStream* s, WIN
{
update_read_notification_icon_delete_order(s, orderInfo);
WLog_Print(update->log, WLOG_DEBUG, "NotifyIconDelete");
IFCALL(window->NotifyIconDelete, context, orderInfo);
IFCALLRET(window->NotifyIconDelete, result, context, orderInfo);
}
else
{
@ -491,16 +493,16 @@ BOOL update_recv_notification_icon_info_order(rdpUpdate* update, wStream* s, WIN
if (orderInfo->fieldFlags & WINDOW_ORDER_STATE_NEW)
{
WLog_Print(update->log, WLOG_DEBUG, "NotifyIconCreate");
IFCALL(window->NotifyIconCreate, context, orderInfo, &window->notify_icon_state);
IFCALLRET(window->NotifyIconCreate, result, context, orderInfo, &window->notify_icon_state);
}
else
{
WLog_Print(update->log, WLOG_DEBUG, "NotifyIconUpdate");
IFCALL(window->NotifyIconUpdate, context, orderInfo, &window->notify_icon_state);
IFCALLRET(window->NotifyIconUpdate, result, context, orderInfo, &window->notify_icon_state);
}
}
return TRUE;
return result;
}
BOOL update_read_desktop_actively_monitored_order(wStream* s, WINDOW_ORDER_INFO* orderInfo, MONITORED_DESKTOP_ORDER* monitored_desktop)
@ -560,22 +562,23 @@ BOOL update_recv_desktop_info_order(rdpUpdate* update, wStream* s, WINDOW_ORDER_
{
rdpContext* context = update->context;
rdpWindowUpdate* window = update->window;
BOOL result = TRUE;
if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_DESKTOP_NONE)
{
update_read_desktop_non_monitored_order(s, orderInfo);
WLog_Print(update->log, WLOG_DEBUG, "NonMonitoredDesktop");
IFCALL(window->NonMonitoredDesktop, context, orderInfo);
IFCALLRET(window->NonMonitoredDesktop, result, context, orderInfo);
}
else
{
if (!update_read_desktop_actively_monitored_order(s, orderInfo, &window->monitored_desktop))
return FALSE;
WLog_Print(update->log, WLOG_DEBUG, "ActivelyMonitoredDesktop");
IFCALL(window->MonitoredDesktop, context, orderInfo, &window->monitored_desktop);
IFCALLRET(window->MonitoredDesktop, result, context, orderInfo, &window->monitored_desktop);
}
return TRUE;
return result;
}
BOOL update_recv_altsec_window_order(rdpUpdate* update, wStream* s)

20
server/shadow/Win/win_wds.c
View File

@ -744,7 +744,7 @@ int win_shadow_wds_init(winShadowSubsystem* subsystem)
return -1;
}
subsystem->pInvitation->lpVtbl->get_ConnectionString(subsystem->pInvitation, &bstrConnectionString);
hr = subsystem->pInvitation->lpVtbl->get_ConnectionString(subsystem->pInvitation, &bstrConnectionString);
if (FAILED(hr))
{
@ -752,10 +752,24 @@ int win_shadow_wds_init(winShadowSubsystem* subsystem)
return -1;
}
status = ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) bstrConnectionString,
((UINT32*) bstrConnectionString)[-1], &(file->ConnectionString2), 0, NULL, NULL);
SysFreeString(bstrConnectionString);
if (status < 1)
{
WLog_ERR(TAG, "failed to convert connection string");
return -1;
}
file = subsystem->pAssistanceFile = freerdp_assistance_file_new();
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) bstrConnectionString,
((UINT32*) bstrConnectionString)[-1], &(file->ConnectionString2), 0, NULL, NULL);
if (!file)
{
WLog_ERR(TAG, "freerdp_assistance_file_new() failed");
return -1;
}
status = freerdp_assistance_parse_connection_string2(file);

217
winpr/libwinpr/crt/test/TestUnicodeConversion.c
View File

@ -260,7 +260,7 @@ int convert_utf16_to_utf8(BYTE* lpWideCharStr, BYTE* expected_lpMultiByteStr, in
return length;
}
int test_unicode_uppercasing(BYTE* lower, BYTE* upper)
BOOL test_unicode_uppercasing(BYTE* lower, BYTE* upper)
{
WCHAR* lowerW = NULL;
int lowerLength;
@ -280,13 +280,182 @@ int test_unicode_uppercasing(BYTE* lower, BYTE* upper)
printf("Uppercase String:\n");
string_hexdump((BYTE*) upperW, upperLength * 2);
return -1;
return FALSE;
}
free(lowerW);
free(upperW);
return 0;
printf("success\n\n");
return TRUE;
}
BOOL test_ConvertFromUnicode_wrapper()
{
/* 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 */
WCHAR src1[] = { 'R','I','C','H',' ','T','E','X','T',' ','F','O','R','M','A','T','@','@','@' };
WCHAR src2[] = { 'R','I','C','H',' ','T','E','X','T',' ','F','O','R','M','A','T', 0 };
CHAR cmp0[] = { 'R','I','C','H',' ','T','E','X','T',' ','F','O','R','M','A','T', 0 };
CHAR* dst = NULL;
int i;
/* Test unterminated unicode string:
* ConvertFromUnicode must always null-terminate, even if the src string isn't
*/
printf("Input UTF16 String:\n");
string_hexdump((BYTE*) src1, 19 * sizeof(WCHAR));
i = ConvertFromUnicode(CP_UTF8, 0, src1, 16, &dst, 0, NULL, NULL);
if (i != 16)
{
fprintf(stderr, "ConvertFromUnicode failure A1: unexpectedly returned %d instead of 16\n", i);
goto fail;
}
if (dst == NULL)
{
fprintf(stderr, "ConvertFromUnicode failure A2: destination ist NULL\n");
goto fail;
}
if ((i = strlen(dst)) != 16)
{
fprintf(stderr, "ConvertFromUnicode failure A3: dst length is %d instead of 16\n", i);
goto fail;
}
if (strcmp(dst, cmp0))
{
fprintf(stderr, "ConvertFromUnicode failure A4: data mismatch\n");
goto fail;
}
printf("Output UTF8 String:\n");
string_hexdump((BYTE*) dst, i + 1);
free(dst);
dst = NULL;
/* Test null-terminated string */
printf("Input UTF16 String:\n");
string_hexdump((BYTE*) src2, (_wcslen(src2) + 1 ) * sizeof(WCHAR));
i = ConvertFromUnicode(CP_UTF8, 0, src2, -1, &dst, 0, NULL, NULL);
if (i != 17)
{
fprintf(stderr, "ConvertFromUnicode failure B1: unexpectedly returned %d instead of 17\n", i);
goto fail;
}
if (dst == NULL)
{
fprintf(stderr, "ConvertFromUnicode failure B2: destination ist NULL\n");
goto fail;
}
if ((i = strlen(dst)) != 16)
{
fprintf(stderr, "ConvertFromUnicode failure B3: dst length is %d instead of 16\n", i);
goto fail;
}
if (strcmp(dst, cmp0))
{
fprintf(stderr, "ConvertFromUnicode failure B: data mismatch\n");
goto fail;
}
printf("Output UTF8 String:\n");
string_hexdump((BYTE*) dst, i + 1);
free(dst);
dst = NULL;
printf("success\n\n");
return TRUE;
fail:
free(dst);
return FALSE;
}
BOOL test_ConvertToUnicode_wrapper()
{
/* 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 */
CHAR src1[] = { 'R','I','C','H',' ','T','E','X','T',' ','F','O','R','M','A','T','@','@','@' };
CHAR src2[] = { 'R','I','C','H',' ','T','E','X','T',' ','F','O','R','M','A','T', 0 };
WCHAR cmp0[] = { 'R','I','C','H',' ','T','E','X','T',' ','F','O','R','M','A','T', 0 };
WCHAR* dst = NULL;
int i;
/* Test unterminated unicode string:
* ConvertToUnicode must always null-terminate, even if the src string isn't
*/
printf("Input UTF8 String:\n");
string_hexdump((BYTE*) src1, 19);
i = ConvertToUnicode(CP_UTF8, 0, src1, 16, &dst, 0);
if (i != 16)
{
fprintf(stderr, "ConvertToUnicode failure A1: unexpectedly returned %d instead of 16\n", i);
goto fail;
}
if (dst == NULL)
{
fprintf(stderr, "ConvertToUnicode failure A2: destination ist NULL\n");
goto fail;
}
if ((i = _wcslen(dst)) != 16)
{
fprintf(stderr, "ConvertToUnicode failure A3: dst length is %d instead of 16\n", i);
goto fail;
}
if (_wcscmp(dst, cmp0))
{
fprintf(stderr, "ConvertToUnicode failure A4: data mismatch\n");
goto fail;
}
printf("Output UTF16 String:\n");
string_hexdump((BYTE*) dst, (i + 1) * sizeof(WCHAR));
free(dst);
dst = NULL;
/* Test null-terminated string */
printf("Input UTF8 String:\n");
string_hexdump((BYTE*) src2, strlen(src2) + 1);
i = ConvertToUnicode(CP_UTF8, 0, src2, -1, &dst, 0);
if (i != 17)
{
fprintf(stderr, "ConvertToUnicode failure B1: unexpectedly returned %d instead of 17\n", i);
goto fail;
}
if (dst == NULL)
{
fprintf(stderr, "ConvertToUnicode failure B2: destination ist NULL\n");
goto fail;
}
if ((i = _wcslen(dst)) != 16)
{
fprintf(stderr, "ConvertToUnicode failure B3: dst length is %d instead of 16\n", i);
goto fail;
}
if (_wcscmp(dst, cmp0))
{
fprintf(stderr, "ConvertToUnicode failure B: data mismatch\n");
goto fail;
}
printf("Output UTF16 String:\n");
string_hexdump((BYTE*) dst, (i + 1) * 2);
free(dst);
dst = NULL;
printf("success\n\n");
return TRUE;
fail:
free(dst);
return FALSE;
}
int TestUnicodeConversion(int argc, char* argv[])
@ -375,7 +544,47 @@ int TestUnicodeConversion(int argc, char* argv[])
printf("Uppercasing\n");
test_unicode_uppercasing(ru_Administrator_lower, ru_Administrator_upper);
if (!test_unicode_uppercasing(ru_Administrator_lower, ru_Administrator_upper))
return -1;
/* ConvertFromUnicode */
printf("ConvertFromUnicode\n");
if (!test_ConvertFromUnicode_wrapper())
return -1;
/* ConvertToUnicode */
printf("ConvertToUnicode\n");
if (!test_ConvertToUnicode_wrapper())
return -1;
/*
printf("----------------------------------------------------------\n\n");
if (0)
{
BYTE src[] = { 'R',0,'I',0,'C',0,'H',0,' ',0, 'T',0,'E',0,'X',0,'T',0,' ',0,'F',0,'O',0,'R',0,'M',0,'A',0,'T',0,'@',0,'@',0 };
//BYTE src[] = { 'R',0,'I',0,'C',0,'H',0,' ',0, 0,0, 'T',0,'E',0,'X',0,'T',0,' ',0,'F',0,'O',0,'R',0,'M',0,'A',0,'T',0,'@',0,'@',0 };
//BYTE src[] = { 0,0,'R',0,'I',0,'C',0,'H',0,' ',0, 'T',0,'E',0,'X',0,'T',0,' ',0,'F',0,'O',0,'R',0,'M',0,'A',0,'T',0,'@',0,'@',0 };
char* dst = NULL;
int num;
num = ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) src, 16, &dst, 0, NULL, NULL);
printf("ConvertFromUnicode returned %d dst=[%s]\n", num, dst);
string_hexdump((BYTE*)dst, num+1);
}
if (1)
{
char src[] = "RICH TEXT FORMAT@@@@@@";
WCHAR *dst = NULL;
int num;
num = ConvertToUnicode(CP_UTF8, 0, src, 16, &dst, 0);
printf("ConvertToUnicode returned %d dst=%p\n", num, dst);
string_hexdump((BYTE*)dst, num * 2 + 2);
}
*/
return 0;
}

35
winpr/libwinpr/crt/unicode.c
View File

@ -276,6 +276,19 @@ int WideCharToMultiByte(UINT CodePage, DWORD dwFlags, LPCWSTR lpWideCharStr, int
#endif
/**
* ConvertToUnicode is a convenience wrapper for MultiByteToWideChar:
*
* If the lpWideCharStr prarameter for the converted string points to NULL
* or if the cchWideChar parameter is set to 0 this function will automatically
* allocate the required memory which is guaranteed to be null-terminated
* after the conversion, even if the source c string isn't.
*
* If the cbMultiByte parameter is set to -1 the passed lpMultiByteStr must
* be null-terminated and the required length for the converted string will be
* calculated accordingly.
*/
int ConvertToUnicode(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr,
int cbMultiByte, LPWSTR* lpWideCharStr, int cchWideChar)
{
@ -305,7 +318,7 @@ int ConvertToUnicode(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr,
if (allocate)
{
*lpWideCharStr = (LPWSTR) calloc(cchWideChar, sizeof(WCHAR));
*lpWideCharStr = (LPWSTR) calloc(cchWideChar + 1, sizeof(WCHAR));
if (!(*lpWideCharStr))
{
@ -317,11 +330,31 @@ int ConvertToUnicode(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteStr,
status = MultiByteToWideChar(CodePage, dwFlags, lpMultiByteStr, cbMultiByte, *lpWideCharStr, cchWideChar);
if (status != cchWideChar)
{
if (allocate)
{
free(*lpWideCharStr);
*lpWideCharStr = NULL;
}
status = 0;
}
return status;
}
/**
* ConvertFromUnicode is a convenience wrapper for WideCharToMultiByte:
*
* If the lpMultiByteStr parameter for the converted string points to NULL
* or if the cbMultiByte parameter is set to 0 this function will automatically
* allocate the required memory which is guaranteed to be null-terminated
* after the conversion, even if the source unicode string isn't.
*
* If the cchWideChar parameter is set to -1 the passed lpWideCharStr must
* be null-terminated and the required length for the converted string will be
* calculated accordingly.
*/
int ConvertFromUnicode(UINT CodePage, DWORD dwFlags, LPCWSTR lpWideCharStr, int cchWideChar,
LPSTR* lpMultiByteStr, int cbMultiByte, LPCSTR lpDefaultChar, LPBOOL lpUsedDefaultChar)
{

4
winpr/libwinpr/file/generic.c
View File

@ -274,7 +274,7 @@ HANDLE CreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode,
LPSTR lpFileNameA = NULL;
HANDLE hdl;
if (ConvertFromUnicode(CP_UTF8, 0, lpFileName, -1, &lpFileNameA, 0, NULL, NULL))
if (ConvertFromUnicode(CP_UTF8, 0, lpFileName, -1, &lpFileNameA, 0, NULL, NULL) < 1)
return NULL;
hdl= CreateFileA(lpFileNameA, dwDesiredAccess, dwShareMode, lpSecurityAttributes,
@ -296,7 +296,7 @@ BOOL DeleteFileW(LPCWSTR lpFileName)
LPSTR lpFileNameA = NULL;
BOOL rc = FALSE;
if (ConvertFromUnicode(CP_UTF8, 0, lpFileName, -1, &lpFileNameA, 0, NULL, NULL))
if (ConvertFromUnicode(CP_UTF8, 0, lpFileName, -1, &lpFileNameA, 0, NULL, NULL) < 1)
return FALSE;
rc = DeleteFileA(lpFileNameA);
free (lpFileNameA);