void rdp_write_extended_info_packet(rdpRdp* rdp, wStream* s)
{
int clientAddressFamily;
WCHAR* clientAddress = NULL;
int cbClientAddress;
WCHAR* clientDir = NULL;
int cbClientDir;
int cbAutoReconnectCookie;
rdpSettings* settings = rdp->settings;
clientAddressFamily = settings->IPv6Enabled ? ADDRESS_FAMILY_INET6 : ADDRESS_FAMILY_INET;
cbClientAddress = ConvertToUnicode(CP_UTF8, 0, settings->ClientAddress, -1, &clientAddress, 0) * 2;
cbClientDir = ConvertToUnicode(CP_UTF8, 0, settings->ClientDir, -1, &clientDir, 0) * 2;
cbAutoReconnectCookie = (int) settings->ServerAutoReconnectCookie->cbLen;
Stream_Write_UINT16(s, clientAddressFamily); /* clientAddressFamily (2 bytes) */
Stream_Write_UINT16(s, cbClientAddress + 2); /* cbClientAddress (2 bytes) */
if (cbClientAddress > 0)
Stream_Write(s, clientAddress, cbClientAddress); /* clientAddress */
Stream_Write_UINT16(s, 0);
Stream_Write_UINT16(s, cbClientDir + 2); /* cbClientDir (2 bytes) */
if (cbClientDir > 0)
Stream_Write(s, clientDir, cbClientDir); /* clientDir */
Stream_Write_UINT16(s, 0);
rdp_write_client_time_zone(s, settings); /* clientTimeZone (172 bytes) */
Stream_Write_UINT32(s, 0); /* clientSessionId (4 bytes), should be set to 0 */
freerdp_performance_flags_make(settings);
Stream_Write_UINT32(s, settings->PerformanceFlags); /* performanceFlags (4 bytes) */
Stream_Write_UINT16(s, cbAutoReconnectCookie); /* cbAutoReconnectCookie (2 bytes) */
if (cbAutoReconnectCookie > 0)
{
rdp_compute_client_auto_reconnect_cookie(rdp);
rdp_write_client_auto_reconnect_cookie(rdp, s); /* autoReconnectCookie */
Stream_Write_UINT16(s, 0); /* reserved1 (2 bytes) */
Stream_Write_UINT16(s, 0); /* reserved2 (2 bytes) */
}
free(clientAddress);
free(clientDir);
}
void rdp_write_extended_info_packet(STREAM* s, rdpSettings* settings)
{
size_t length;
uint16 clientAddressFamily;
uint8* clientAddress;
uint16 cbClientAddress;
uint8* clientDir;
uint16 cbClientDir;
uint16 cbAutoReconnectLen;
clientAddressFamily = settings->ipv6 ? ADDRESS_FAMILY_INET6 : ADDRESS_FAMILY_INET;
clientAddress = (uint8*) freerdp_uniconv_out(settings->uniconv, settings->ip_address, &length);
cbClientAddress = length;
clientDir = (uint8*) freerdp_uniconv_out(settings->uniconv, settings->client_dir, &length);
cbClientDir = length;
cbAutoReconnectLen = settings->client_auto_reconnect_cookie->cbLen;
stream_write_uint16(s, clientAddressFamily); /* clientAddressFamily */
stream_write_uint16(s, cbClientAddress + 2); /* cbClientAddress */
if (cbClientAddress > 0)
stream_write(s, clientAddress, cbClientAddress); /* clientAddress */
stream_write_uint16(s, 0);
stream_write_uint16(s, cbClientDir + 2); /* cbClientDir */
if (cbClientDir > 0)
stream_write(s, clientDir, cbClientDir); /* clientDir */
stream_write_uint16(s, 0);
rdp_write_client_time_zone(s, settings); /* clientTimeZone */
stream_write_uint32(s, 0); /* clientSessionId, should be set to 0 */
stream_write_uint32(s, settings->performance_flags); /* performanceFlags */
stream_write_uint16(s, cbAutoReconnectLen); /* cbAutoReconnectLen */
if (cbAutoReconnectLen > 0)
rdp_write_client_auto_reconnect_cookie(s, settings); /* autoReconnectCookie */
/* reserved1 (2 bytes) */
/* reserved2 (2 bytes) */
xfree(clientAddress);
xfree(clientDir);
}
void rdp_write_extended_info_packet(wStream* s, rdpSettings* settings)
{
int clientAddressFamily;
WCHAR* clientAddress = NULL;
int cbClientAddress;
WCHAR* clientDir = NULL;
int cbClientDir;
int cbAutoReconnectLen;
clientAddressFamily = settings->IPv6Enabled ? ADDRESS_FAMILY_INET6 : ADDRESS_FAMILY_INET;
cbClientAddress = ConvertToUnicode(CP_UTF8, 0, settings->ClientAddress, -1, &clientAddress, 0) * 2;
cbClientDir = ConvertToUnicode(CP_UTF8, 0, settings->ClientDir, -1, &clientDir, 0) * 2;
cbAutoReconnectLen = (int) settings->ClientAutoReconnectCookie->cbLen;
Stream_Write_UINT16(s, clientAddressFamily); /* clientAddressFamily */
Stream_Write_UINT16(s, cbClientAddress + 2); /* cbClientAddress */
if (cbClientAddress > 0)
Stream_Write(s, clientAddress, cbClientAddress); /* clientAddress */
Stream_Write_UINT16(s, 0);
Stream_Write_UINT16(s, cbClientDir + 2); /* cbClientDir */
if (cbClientDir > 0)
Stream_Write(s, clientDir, cbClientDir); /* clientDir */
Stream_Write_UINT16(s, 0);
rdp_write_client_time_zone(s, settings); /* clientTimeZone */
Stream_Write_UINT32(s, 0); /* clientSessionId, should be set to 0 */
Stream_Write_UINT32(s, settings->PerformanceFlags); /* performanceFlags */
Stream_Write_UINT16(s, cbAutoReconnectLen); /* cbAutoReconnectLen */
if (cbAutoReconnectLen > 0)
rdp_write_client_auto_reconnect_cookie(s, settings); /* autoReconnectCookie */
/* reserved1 (2 bytes) */
/* reserved2 (2 bytes) */
free(clientAddress);
free(clientDir);
}
void rdp_write_extended_info_packet(wStream* s, rdpSettings* settings)
{
int clientAddressFamily;
WCHAR* clientAddress = NULL;
int cbClientAddress;
WCHAR* clientDir = NULL;
int cbClientDir;
int cbAutoReconnectLen;
clientAddressFamily = settings->IPv6Enabled ? ADDRESS_FAMILY_INET6 : ADDRESS_FAMILY_INET;
cbClientAddress = ConvertToUnicode(CP_UTF8, 0, settings->ClientAddress, -1, &clientAddress, 0) * 2;
cbClientDir = ConvertToUnicode(CP_UTF8, 0, settings->ClientDir, -1, &clientDir, 0) * 2;
cbAutoReconnectLen = (int) settings->ServerAutoReconnectCookie->cbLen;
Stream_Write_UINT16(s, clientAddressFamily); /* clientAddressFamily */
Stream_Write_UINT16(s, cbClientAddress + 2); /* cbClientAddress */
if (cbClientAddress > 0)
Stream_Write(s, clientAddress, cbClientAddress); /* clientAddress */
Stream_Write_UINT16(s, 0);
Stream_Write_UINT16(s, cbClientDir + 2); /* cbClientDir */
if (cbClientDir > 0)
Stream_Write(s, clientDir, cbClientDir); /* clientDir */
Stream_Write_UINT16(s, 0);
rdp_write_client_time_zone(s, settings); /* clientTimeZone */
Stream_Write_UINT32(s, 0); /* clientSessionId, should be set to 0 */
freerdp_performance_flags_make(settings);
Stream_Write_UINT32(s, settings->PerformanceFlags); /* performanceFlags */
Stream_Write_UINT16(s, cbAutoReconnectLen); /* cbAutoReconnectLen */
if (cbAutoReconnectLen > 0)
{
CryptoHmac hmac;
ARC_SC_PRIVATE_PACKET* serverCookie;
ARC_CS_PRIVATE_PACKET* clientCookie;
WLog_DBG(TAG, "Sending auto reconnect");
serverCookie = settings->ServerAutoReconnectCookie;
clientCookie = settings->ClientAutoReconnectCookie;
clientCookie->cbLen = serverCookie->cbLen;
clientCookie->version = serverCookie->version;
clientCookie->logonId = serverCookie->logonId;
hmac = crypto_hmac_new();
if (!hmac)
{
WLog_ERR(TAG, "unable to allocate hmac");
goto out_free;
}
crypto_hmac_md5_init(hmac, serverCookie->arcRandomBits, 16);
if (settings->SelectedProtocol == PROTOCOL_RDP)
{
crypto_hmac_update(hmac, (BYTE*) (settings->ClientRandom), 32);
}
else
{
/* Anthony Tong's version had 16 zeroes here; I'm not sure why.
* I do know that 16 did not reconnect correctly vs Win2008RDVH,
* and 32 did.
*/
const BYTE zeros[32] = { 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
crypto_hmac_update(hmac, zeros, 32);
}
crypto_hmac_final(hmac, clientCookie->securityVerifier, 16);
rdp_write_client_auto_reconnect_cookie(s, settings); /* autoReconnectCookie */
/* mark as used */
settings->ServerAutoReconnectCookie->cbLen = 0;
crypto_hmac_free(hmac);
}
/* reserved1 (2 bytes) */
/* reserved2 (2 bytes) */
out_free:
free(clientAddress);
free(clientDir);
}
