/** * FreeRDP: A Remote Desktop Protocol Client * RDP Client Info * * Copyright 2011 Marc-Andre Moreau * * 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 "info.h" #define INFO_TYPE_LOGON 0x00000000 #define INFO_TYPE_LOGON_LONG 0x00000001 #define INFO_TYPE_LOGON_PLAIN_NOTIFY 0x00000002 #define INFO_TYPE_LOGON_EXTENDED_INF 0x00000003 /* static const char* const INFO_TYPE_LOGON_STRINGS[] = { "Logon Info V1", "Logon Info V2", "Logon Plain Notify", "Logon Extended Info" }; */ /** * Read SYSTEM_TIME structure (TS_SYSTEMTIME).\n * @msdn{cc240478} * @param s stream * @param system_time system time structure */ void rdp_read_system_time(STREAM* s, SYSTEM_TIME* system_time) { stream_read_uint16(s, system_time->wYear); /* wYear, must be set to 0 */ stream_read_uint16(s, system_time->wMonth); /* wMonth */ stream_read_uint16(s, system_time->wDayOfWeek); /* wDayOfWeek */ stream_read_uint16(s, system_time->wDay); /* wDay */ stream_read_uint16(s, system_time->wHour); /* wHour */ stream_read_uint16(s, system_time->wMinute); /* wMinute */ stream_read_uint16(s, system_time->wSecond); /* wSecond */ stream_read_uint16(s, system_time->wMilliseconds); /* wMilliseconds */ } /** * Write SYSTEM_TIME structure (TS_SYSTEMTIME).\n * @msdn{cc240478} * @param s stream * @param system_time system time structure */ void rdp_write_system_time(STREAM* s, SYSTEM_TIME* system_time) { stream_write_uint16(s, system_time->wYear); /* wYear, must be set to 0 */ stream_write_uint16(s, system_time->wMonth); /* wMonth */ stream_write_uint16(s, system_time->wDayOfWeek); /* wDayOfWeek */ stream_write_uint16(s, system_time->wDay); /* wDay */ stream_write_uint16(s, system_time->wHour); /* wHour */ stream_write_uint16(s, system_time->wMinute); /* wMinute */ stream_write_uint16(s, system_time->wSecond); /* wSecond */ stream_write_uint16(s, system_time->wMilliseconds); /* wMilliseconds */ } /** * Get client time zone information.\n * @param s stream * @param settings settings */ void rdp_get_client_time_zone(STREAM* s, rdpSettings* settings) { time_t t; struct tm* local_time; TIME_ZONE_INFO* clientTimeZone; time(&t); local_time = localtime(&t); clientTimeZone = settings->client_time_zone; #if defined(sun) if(local_time->tm_isdst > 0) clientTimeZone->bias = (uint32) (altzone / 3600); else clientTimeZone->bias = (uint32) (timezone / 3600); #elif defined(HAVE_TM_GMTOFF) if(local_time->tm_gmtoff >= 0) clientTimeZone->bias = (uint32) (local_time->tm_gmtoff / 60); else clientTimeZone->bias = (uint32) ((-1 * local_time->tm_gmtoff) / 60 + 720); #else clientTimeZone->bias = 0; #endif if(local_time->tm_isdst > 0) { clientTimeZone->standardBias = clientTimeZone->bias - 60; clientTimeZone->daylightBias = clientTimeZone->bias; } else { clientTimeZone->standardBias = clientTimeZone->bias; clientTimeZone->daylightBias = clientTimeZone->bias + 60; } strftime(clientTimeZone->standardName, 32, "%Z, Standard Time", local_time); clientTimeZone->standardName[31] = 0; strftime(clientTimeZone->daylightName, 32, "%Z, Summer Time", local_time); clientTimeZone->daylightName[31] = 0; } /** * Read client time zone information (TS_TIME_ZONE_INFORMATION).\n * @msdn{cc240477} * @param s stream * @param settings settings */ boolean rdp_read_client_time_zone(STREAM* s, rdpSettings* settings) { char* str; TIME_ZONE_INFO* clientTimeZone; if (stream_get_left(s) < 172) return false; clientTimeZone = settings->client_time_zone; stream_read_uint32(s, clientTimeZone->bias); /* Bias */ /* standardName (64 bytes) */ str = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), 64); stream_seek(s, 64); strncpy(clientTimeZone->standardName, str, sizeof(clientTimeZone->standardName)); xfree(str); rdp_read_system_time(s, &clientTimeZone->standardDate); /* StandardDate */ stream_read_uint32(s, clientTimeZone->standardBias); /* StandardBias */ /* daylightName (64 bytes) */ str = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), 64); stream_seek(s, 64); strncpy(clientTimeZone->daylightName, str, sizeof(clientTimeZone->daylightName)); xfree(str); rdp_read_system_time(s, &clientTimeZone->daylightDate); /* DaylightDate */ stream_read_uint32(s, clientTimeZone->daylightBias); /* DaylightBias */ return true; } /** * Write client time zone information (TS_TIME_ZONE_INFORMATION).\n * @msdn{cc240477} * @param s stream * @param settings settings */ void rdp_write_client_time_zone(STREAM* s, rdpSettings* settings) { size_t length; uint8* standardName; uint8* daylightName; size_t standardNameLength; size_t daylightNameLength; TIME_ZONE_INFO* clientTimeZone; rdp_get_client_time_zone(s, settings); clientTimeZone = settings->client_time_zone; standardName = (uint8*) freerdp_uniconv_out(settings->uniconv, clientTimeZone->standardName, &length); standardNameLength = length; daylightName = (uint8*) freerdp_uniconv_out(settings->uniconv, clientTimeZone->daylightName, &length); daylightNameLength = length; if (standardNameLength > 62) standardNameLength = 62; if (daylightNameLength > 62) daylightNameLength = 62; stream_write_uint32(s, clientTimeZone->bias); /* Bias */ /* standardName (64 bytes) */ stream_write(s, standardName, standardNameLength); stream_write_zero(s, 64 - standardNameLength); rdp_write_system_time(s, &clientTimeZone->standardDate); /* StandardDate */ stream_write_uint32(s, clientTimeZone->standardBias); /* StandardBias */ /* daylightName (64 bytes) */ stream_write(s, daylightName, daylightNameLength); stream_write_zero(s, 64 - daylightNameLength); rdp_write_system_time(s, &clientTimeZone->daylightDate); /* DaylightDate */ stream_write_uint32(s, clientTimeZone->daylightBias); /* DaylightBias */ xfree(standardName); xfree(daylightName); } /** * Read Server Auto Reconnect Cookie (ARC_SC_PRIVATE_PACKET).\n * @msdn{cc240540} * @param s stream * @param settings settings */ void rdp_read_server_auto_reconnect_cookie(STREAM* s, rdpSettings* settings) { ARC_SC_PRIVATE_PACKET* autoReconnectCookie; autoReconnectCookie = settings->server_auto_reconnect_cookie; stream_read_uint32(s, autoReconnectCookie->cbLen); /* cbLen (4 bytes) */ stream_read_uint32(s, autoReconnectCookie->version); /* version (4 bytes) */ stream_read_uint32(s, autoReconnectCookie->logonId); /* LogonId (4 bytes) */ stream_read(s, autoReconnectCookie->arcRandomBits, 16); /* arcRandomBits (16 bytes) */ } /** * Read Client Auto Reconnect Cookie (ARC_CS_PRIVATE_PACKET).\n * @msdn{cc240541} * @param s stream * @param settings settings */ boolean rdp_read_client_auto_reconnect_cookie(STREAM* s, rdpSettings* settings) { ARC_CS_PRIVATE_PACKET* autoReconnectCookie; autoReconnectCookie = settings->client_auto_reconnect_cookie; if (stream_get_left(s) < 28) return false; stream_write_uint32(s, autoReconnectCookie->cbLen); /* cbLen (4 bytes) */ stream_write_uint32(s, autoReconnectCookie->version); /* version (4 bytes) */ stream_write_uint32(s, autoReconnectCookie->logonId); /* LogonId (4 bytes) */ stream_write(s, autoReconnectCookie->securityVerifier, 16); /* SecurityVerifier */ return true; } /** * Write Client Auto Reconnect Cookie (ARC_CS_PRIVATE_PACKET).\n * @msdn{cc240541} * @param s stream * @param settings settings */ void rdp_write_client_auto_reconnect_cookie(STREAM* s, rdpSettings* settings) { ARC_CS_PRIVATE_PACKET* autoReconnectCookie; autoReconnectCookie = settings->client_auto_reconnect_cookie; stream_write_uint32(s, autoReconnectCookie->cbLen); /* cbLen (4 bytes) */ stream_write_uint32(s, autoReconnectCookie->version); /* version (4 bytes) */ stream_write_uint32(s, autoReconnectCookie->logonId); /* LogonId (4 bytes) */ stream_write(s, autoReconnectCookie->securityVerifier, 16); /* SecurityVerifier */ } /** * Read Extended Info Packet (TS_EXTENDED_INFO_PACKET).\n * @msdn{cc240476} * @param s stream * @param settings settings */ 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; } /** * Write Extended Info Packet (TS_EXTENDED_INFO_PACKET).\n * @msdn{cc240476} * @param s stream * @param settings settings */ 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); } /** * Read Info Packet (TS_INFO_PACKET).\n * @msdn{cc240475} * @param s stream * @param settings settings */ boolean rdp_read_info_packet(STREAM* s, rdpSettings* settings) { uint32 flags; uint16 cbDomain; uint16 cbUserName; uint16 cbPassword; uint16 cbAlternateShell; uint16 cbWorkingDir; stream_seek_uint32(s); /* CodePage */ stream_read_uint32(s, flags); /* flags */ settings->autologon = ((flags & INFO_AUTOLOGON) ? true : false); settings->remote_app = ((flags & INFO_RAIL) ? true : false); settings->console_audio = ((flags & INFO_REMOTECONSOLEAUDIO) ? true : false); settings->compression = ((flags & INFO_COMPRESSION) ? true : false); stream_read_uint16(s, cbDomain); /* cbDomain */ stream_read_uint16(s, cbUserName); /* cbUserName */ stream_read_uint16(s, cbPassword); /* cbPassword */ stream_read_uint16(s, cbAlternateShell); /* cbAlternateShell */ stream_read_uint16(s, cbWorkingDir); /* cbWorkingDir */ if (stream_get_left(s) < cbDomain + 2) return false; if (cbDomain > 0) { settings->domain = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), cbDomain); stream_seek(s, cbDomain); } stream_seek(s, 2); if (stream_get_left(s) < cbUserName + 2) return false; if (cbUserName > 0) { settings->username = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), cbUserName); stream_seek(s, cbUserName); } stream_seek(s, 2); if (stream_get_left(s) < cbPassword + 2) return false; if (cbPassword > 0) { settings->password = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), cbPassword); stream_seek(s, cbPassword); } stream_seek(s, 2); if (stream_get_left(s) < cbAlternateShell + 2) return false; if (cbAlternateShell > 0) { settings->shell = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), cbAlternateShell); stream_seek(s, cbAlternateShell); } stream_seek(s, 2); if (stream_get_left(s) < cbWorkingDir + 2) return false; if (cbWorkingDir > 0) { settings->directory = freerdp_uniconv_in(settings->uniconv, stream_get_tail(s), cbWorkingDir); stream_seek(s, cbWorkingDir); } stream_seek(s, 2); if (settings->rdp_version >= 5) return rdp_read_extended_info_packet(s, settings); /* extraInfo */ return true; } /** * Write Info Packet (TS_INFO_PACKET).\n * @msdn{cc240475} * @param s stream * @param settings settings */ void rdp_write_info_packet(STREAM* s, rdpSettings* settings) { size_t length; uint32 flags; uint8* domain; uint16 cbDomain; uint8* userName; uint16 cbUserName; uint8* password; uint16 cbPassword; size_t passwordLength; uint8* alternateShell; uint16 cbAlternateShell; uint8* workingDir; uint16 cbWorkingDir; boolean usedPasswordCookie = false; flags = INFO_MOUSE | INFO_UNICODE | INFO_LOGONERRORS | INFO_LOGONNOTIFY | INFO_MAXIMIZESHELL | INFO_ENABLEWINDOWSKEY | INFO_DISABLECTRLALTDEL | RNS_INFO_AUDIOCAPTURE; if (settings->autologon) flags |= INFO_AUTOLOGON; if (settings->remote_app) flags |= INFO_RAIL; if (settings->console_audio) flags |= INFO_REMOTECONSOLEAUDIO; if (settings->compression) flags |= INFO_COMPRESSION | INFO_PACKET_COMPR_TYPE_64K; domain = (uint8*)freerdp_uniconv_out(settings->uniconv, settings->domain, &length); cbDomain = length; userName = (uint8*)freerdp_uniconv_out(settings->uniconv, settings->username, &length); cbUserName = length; if (settings->password_cookie && settings->password_cookie->length > 0) { usedPasswordCookie = true; password = (uint8*)settings->password_cookie->data; passwordLength = settings->password_cookie->length; cbPassword = passwordLength - 2; } else { password = (uint8*)freerdp_uniconv_out(settings->uniconv, settings->password, &passwordLength); cbPassword = passwordLength; } alternateShell = (uint8*)freerdp_uniconv_out(settings->uniconv, settings->shell, &length); cbAlternateShell = length; workingDir = (uint8*)freerdp_uniconv_out(settings->uniconv, settings->directory, &length); cbWorkingDir = length; stream_write_uint32(s, 0); /* CodePage */ stream_write_uint32(s, flags); /* flags */ stream_write_uint16(s, cbDomain); /* cbDomain */ stream_write_uint16(s, cbUserName); /* cbUserName */ stream_write_uint16(s, cbPassword); /* cbPassword */ stream_write_uint16(s, cbAlternateShell); /* cbAlternateShell */ stream_write_uint16(s, cbWorkingDir); /* cbWorkingDir */ if (cbDomain > 0) stream_write(s, domain, cbDomain); stream_write_uint16(s, 0); if (cbUserName > 0) stream_write(s, userName, cbUserName); stream_write_uint16(s, 0); if (cbPassword > 0) stream_write(s, password, passwordLength); stream_write_uint16(s, 0); if (cbAlternateShell > 0) stream_write(s, alternateShell, cbAlternateShell); stream_write_uint16(s, 0); if (cbWorkingDir > 0) stream_write(s, workingDir, cbWorkingDir); stream_write_uint16(s, 0); xfree(domain); xfree(userName); xfree(alternateShell); xfree(workingDir); if (!usedPasswordCookie) xfree(password); if (settings->rdp_version >= 5) rdp_write_extended_info_packet(s, settings); /* extraInfo */ } /** * Read Client Info PDU (CLIENT_INFO_PDU).\n * @msdn{cc240474} * @param rdp RDP module * @param s stream */ boolean rdp_recv_client_info(rdpRdp* rdp, STREAM* s) { uint16 length; uint16 channelId; uint16 securityFlags; if (!rdp_read_header(rdp, s, &length, &channelId)) return false; rdp_read_security_header(s, &securityFlags); if ((securityFlags & SEC_INFO_PKT) == 0) return false; if (rdp->settings->encryption) { if (securityFlags & SEC_REDIRECTION_PKT) { printf("Error: SEC_REDIRECTION_PKT unsupported\n"); return false; } if (securityFlags & SEC_ENCRYPT) { if (!rdp_decrypt(rdp, s, length - 4, securityFlags)) { printf("rdp_decrypt failed\n"); return false; } } } return rdp_read_info_packet(s, rdp->settings); } /** * Send Client Info PDU (CLIENT_INFO_PDU).\n * @msdn{cc240474} * @param rdp RDP module */ boolean rdp_send_client_info(rdpRdp* rdp) { STREAM* s; //rdp->settings->crypt_flags |= SEC_INFO_PKT; rdp->sec_flags |= SEC_INFO_PKT; s = rdp_send_stream_init(rdp); rdp_write_info_packet(s, rdp->settings); return rdp_send(rdp, s, MCS_GLOBAL_CHANNEL_ID); } void rdp_recv_logon_info_v1(rdpRdp* rdp, STREAM* s) { uint32 cbDomain; uint32 cbUserName; stream_read_uint32(s, cbDomain); /* cbDomain (4 bytes) */ stream_seek(s, 52); /* domain (52 bytes) */ stream_read_uint32(s, cbUserName); /* cbUserName (4 bytes) */ stream_seek(s, 512); /* userName (512 bytes) */ stream_seek_uint32(s); /* sessionId (4 bytes) */ } void rdp_recv_logon_info_v2(rdpRdp* rdp, STREAM* s) { uint32 cbDomain; uint32 cbUserName; stream_seek_uint16(s); /* version (2 bytes) */ stream_seek_uint32(s); /* size (4 bytes) */ stream_seek_uint32(s); /* sessionId (4 bytes) */ stream_read_uint32(s, cbDomain); /* cbDomain (4 bytes) */ stream_read_uint32(s, cbUserName); /* cbUserName (4 bytes) */ stream_seek(s, 558); /* pad */ stream_seek(s, cbDomain); /* domain */ stream_seek(s, cbUserName); /* userName */ } void rdp_recv_logon_plain_notify(rdpRdp* rdp, STREAM* s) { stream_seek(s, 576); /* pad */ } void rdp_recv_logon_error_info(rdpRdp* rdp, STREAM* s) { uint32 errorNotificationType; uint32 errorNotificationData; stream_read_uint32(s, errorNotificationType); /* errorNotificationType (4 bytes) */ stream_read_uint32(s, errorNotificationData); /* errorNotificationData (4 bytes) */ } void rdp_recv_logon_info_extended(rdpRdp* rdp, STREAM* s) { uint32 cbFieldData; uint32 fieldsPresent; uint16 Length; stream_read_uint16(s, Length); /* The total size in bytes of this structure */ stream_read_uint32(s, fieldsPresent); /* fieldsPresent (4 bytes) */ /* logonFields */ if (fieldsPresent & LOGON_EX_AUTORECONNECTCOOKIE) { stream_read_uint32(s, cbFieldData); /* cbFieldData (4 bytes) */ rdp_read_server_auto_reconnect_cookie(s, rdp->settings); } if (fieldsPresent & LOGON_EX_LOGONERRORS) { stream_read_uint32(s, cbFieldData); /* cbFieldData (4 bytes) */ rdp_recv_logon_error_info(rdp, s); } stream_seek(s, 570); /* pad */ } boolean rdp_recv_save_session_info(rdpRdp* rdp, STREAM* s) { uint32 infoType; stream_read_uint32(s, infoType); /* infoType (4 bytes) */ //printf("%s\n", INFO_TYPE_LOGON_STRINGS[infoType]); switch (infoType) { case INFO_TYPE_LOGON: rdp_recv_logon_info_v1(rdp, s); break; case INFO_TYPE_LOGON_LONG: rdp_recv_logon_info_v2(rdp, s); break; case INFO_TYPE_LOGON_PLAIN_NOTIFY: rdp_recv_logon_plain_notify(rdp, s); break; case INFO_TYPE_LOGON_EXTENDED_INF: rdp_recv_logon_info_extended(rdp, s); break; default: break; } return true; }