BOOL rdp_read_extended_info_packet(wStream* s, rdpSettings* settings)
{
UINT16 clientAddressFamily;
UINT16 cbClientAddress;
UINT16 cbClientDir;
UINT16 cbAutoReconnectLen;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
Stream_Read_UINT16(s, clientAddressFamily); /* clientAddressFamily */
Stream_Read_UINT16(s, cbClientAddress); /* cbClientAddress */
settings->IPv6Enabled = (clientAddressFamily == ADDRESS_FAMILY_INET6 ? TRUE : FALSE);
if (Stream_GetRemainingLength(s) < cbClientAddress)
return FALSE;
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbClientAddress / 2, &settings->ClientAddress, 0, NULL, NULL);
Stream_Seek(s, cbClientAddress);
if (Stream_GetRemainingLength(s) < 2)
return FALSE;
Stream_Read_UINT16(s, cbClientDir); /* cbClientDir */
if (Stream_GetRemainingLength(s) < cbClientDir)
return FALSE;
if (settings->ClientDir)
free(settings->ClientDir);
ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) Stream_Pointer(s), cbClientDir / 2, &settings->ClientDir, 0, NULL, NULL);
Stream_Seek(s, cbClientDir);
if (!rdp_read_client_time_zone(s, settings))
return FALSE;
if (Stream_GetRemainingLength(s) < 10)
return FALSE;
Stream_Seek_UINT32(s); /* clientSessionId, should be set to 0 */
Stream_Read_UINT32(s, settings->PerformanceFlags); /* performanceFlags */
Stream_Read_UINT16(s, cbAutoReconnectLen); /* cbAutoReconnectLen */
if (cbAutoReconnectLen > 0)
return rdp_read_client_auto_reconnect_cookie(s, settings); /* autoReconnectCookie */
/* reserved1 (2 bytes) */
/* reserved2 (2 bytes) */
return TRUE;
}
boolean rdp_read_extended_info_packet(STREAM* s, rdpSettings* settings)
{
uint16 clientAddressFamily;
uint16 cbClientAddress;
uint16 cbClientDir;
uint16 cbAutoReconnectLen;
stream_read_uint16(s, clientAddressFamily); /* clientAddressFamily */
stream_read_uint16(s, cbClientAddress); /* cbClientAddress */
settings->ipv6 = (clientAddressFamily == ADDRESS_FAMILY_INET6 ? true : false);
if (stream_get_left(s) < cbClientAddress)
return false;
settings->ip_address = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), cbClientAddress);
stream_seek(s, cbClientAddress);
stream_read_uint16(s, cbClientDir); /* cbClientDir */
if (stream_get_left(s) < cbClientDir)
return false;
if (settings->client_dir)
xfree(settings->client_dir);
settings->client_dir = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), cbClientDir);
stream_seek(s, cbClientDir);
if (!rdp_read_client_time_zone(s, settings))
return false;
stream_seek_uint32(s); /* clientSessionId, should be set to 0 */
stream_read_uint32(s, settings->performance_flags); /* performanceFlags */
stream_read_uint16(s, cbAutoReconnectLen); /* cbAutoReconnectLen */
if (cbAutoReconnectLen > 0)
return rdp_read_client_auto_reconnect_cookie(s, settings); /* autoReconnectCookie */
/* reserved1 (2 bytes) */
/* reserved2 (2 bytes) */
return true;
}
BOOL rdp_read_extended_info_packet(rdpRdp* rdp, wStream* s)
{
UINT16 clientAddressFamily;
UINT16 cbClientAddress;
UINT16 cbClientDir;
UINT16 cbAutoReconnectLen;
rdpSettings* settings = rdp->settings;
WCHAR* wstr;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
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
* Note: Although according to [MS-RDPBCGR 2.2.1.11.1.1.1] the null terminator
* is mandatory, connections via Microsoft's TS Gateway set cbClientAddress to 0.
*/
if ((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)
return FALSE;
if (settings->ClientAddress)
{
free(settings->ClientAddress);
settings->ClientAddress = NULL;
}
if (cbClientAddress)
{
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);
WLog_DBG(TAG, "rdp client address: [%s]", settings->ClientAddress);
}
if (Stream_GetRemainingLength(s) < 2)
return FALSE;
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.
* Note: Although according to [MS-RDPBCGR 2.2.1.11.1.1.1] the null terminator
* is mandatory the Microsoft Android client (starting with version 8.1.31.44)
* sets cbClientDir to 0.
*/
if ((cbClientDir % 2) || cbClientDir > 512)
{
WLog_ERR(TAG, "protocol error: invalid cbClientDir value: %u", cbClientDir);
return FALSE;
}
if (Stream_GetRemainingLength(s) < cbClientDir)
return FALSE;
if (settings->ClientDir)
{
free(settings->ClientDir);
settings->ClientDir = NULL;
}
if (cbClientDir)
{
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);
WLog_DBG(TAG, "rdp client dir: [%s]", settings->ClientDir);
}
/**
* down below all fields are optional but if one field is not present,
* then all of the subsequent fields also MUST NOT be present.
*/
/* optional: clientTimeZone (172 bytes) */
if (Stream_GetRemainingLength(s) == 0)
return TRUE;
if (!rdp_read_client_time_zone(s, settings))
return FALSE;
/* optional: clientSessionId (4 bytes), should be set to 0 */
if (Stream_GetRemainingLength(s) == 0)
return TRUE;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
Stream_Seek_UINT32(s);
/* optional: performanceFlags (4 bytes) */
if (Stream_GetRemainingLength(s) == 0)
return TRUE;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
Stream_Read_UINT32(s, settings->PerformanceFlags);
freerdp_performance_flags_split(settings);
/* optional: cbAutoReconnectLen (2 bytes) */
if (Stream_GetRemainingLength(s) == 0)
return TRUE;
if (Stream_GetRemainingLength(s) < 2)
return FALSE;
Stream_Read_UINT16(s, cbAutoReconnectLen);
/* optional: autoReconnectCookie (28 bytes) */
/* must be present if cbAutoReconnectLen is > 0 */
if (cbAutoReconnectLen > 0)
return rdp_read_client_auto_reconnect_cookie(rdp, s);
/* TODO */
/* reserved1 (2 bytes) */
/* reserved2 (2 bytes) */
/* cbDynamicDSTTimeZoneKeyName (2 bytes) */
/* dynamicDSTTimeZoneKeyName (variable) */
/* dynamicDaylightTimeDisabled (2 bytes) */
return TRUE;
}
BOOL rdp_read_extended_info_packet(rdpRdp* rdp, wStream* s)
{
UINT16 clientAddressFamily;
UINT16 cbClientAddress;
UINT16 cbClientDir;
UINT16 cbAutoReconnectLen;
rdpSettings* settings = rdp->settings;
WCHAR* wstr;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
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)
return FALSE;
if (settings->ClientAddress)
{
free(settings->ClientAddress);
settings->ClientAddress = 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)
return FALSE;
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;
if (settings->ClientDir)
{
free(settings->ClientDir);
settings->ClientDir = 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))
return FALSE;
if (Stream_GetRemainingLength(s) < 10)
return FALSE;
Stream_Seek_UINT32(s); /* clientSessionId (4 bytes), should be set to 0 */
Stream_Read_UINT32(s, settings->PerformanceFlags); /* performanceFlags (4 bytes) */
freerdp_performance_flags_split(settings);
Stream_Read_UINT16(s, cbAutoReconnectLen); /* cbAutoReconnectLen (2 bytes) */
if (cbAutoReconnectLen > 0)
return rdp_read_client_auto_reconnect_cookie(rdp, s); /* autoReconnectCookie */
/* reserved1 (2 bytes) */
/* reserved2 (2 bytes) */
return TRUE;
}
