BOOL rdp_client_connect(rdpRdp* rdp) { BOOL ret; rdpSettings* settings = rdp->settings; if (rdp->settingsCopy) { freerdp_settings_free(rdp->settingsCopy); rdp->settingsCopy = NULL; } rdp->settingsCopy = freerdp_settings_clone(settings); if (!rdp->settingsCopy) return FALSE; nego_init(rdp->nego); nego_set_target(rdp->nego, settings->ServerHostname, settings->ServerPort); if (settings->GatewayEnabled) { char* user = NULL; char* domain = NULL; char* cookie = NULL; int user_length = 0; int domain_length = 0; int cookie_length = 0; if (settings->Username) { user = settings->Username; user_length = strlen(settings->Username); } if (settings->Domain) domain = settings->Domain; else domain = settings->ComputerName; domain_length = strlen(domain); cookie_length = domain_length + 1 + user_length; cookie = (char*) malloc(cookie_length + 1); if (!cookie) return FALSE; CopyMemory(cookie, domain, domain_length); CharUpperBuffA(cookie, domain_length); cookie[domain_length] = '\\'; if (settings->Username) CopyMemory(&cookie[domain_length + 1], user, user_length); cookie[cookie_length] = '\0'; ret = nego_set_cookie(rdp->nego, cookie); free(cookie); } else { ret = nego_set_cookie(rdp->nego, settings->Username); } if (!ret) return FALSE; nego_set_send_preconnection_pdu(rdp->nego, settings->SendPreconnectionPdu); nego_set_preconnection_id(rdp->nego, settings->PreconnectionId); nego_set_preconnection_blob(rdp->nego, settings->PreconnectionBlob); nego_set_negotiation_enabled(rdp->nego, settings->NegotiateSecurityLayer); nego_set_restricted_admin_mode_required(rdp->nego, settings->RestrictedAdminModeRequired); nego_set_gateway_enabled(rdp->nego, settings->GatewayEnabled); nego_set_gateway_bypass_local(rdp->nego, settings->GatewayBypassLocal); nego_enable_rdp(rdp->nego, settings->RdpSecurity); nego_enable_tls(rdp->nego, settings->TlsSecurity); nego_enable_nla(rdp->nego, settings->NlaSecurity); nego_enable_ext(rdp->nego, settings->ExtSecurity); if (settings->MstscCookieMode) settings->CookieMaxLength = MSTSC_COOKIE_MAX_LENGTH; nego_set_cookie_max_length(rdp->nego, settings->CookieMaxLength); if (settings->LoadBalanceInfo) { if (!nego_set_routing_token(rdp->nego, settings->LoadBalanceInfo, settings->LoadBalanceInfoLength)) return FALSE; } if (!nego_connect(rdp->nego)) { if (!freerdp_get_last_error(rdp->context)) { freerdp_set_last_error(rdp->context, FREERDP_ERROR_SECURITY_NEGO_CONNECT_FAILED); } WLog_ERR(TAG, "Error: protocol security negotiation or connection failure"); return FALSE; } if ((rdp->nego->selected_protocol & PROTOCOL_TLS) || (rdp->nego->selected_protocol == PROTOCOL_RDP)) { if ((settings->Username != NULL) && ((settings->Password != NULL) || (settings->RedirectionPassword != NULL && settings->RedirectionPasswordLength > 0))) settings->AutoLogonEnabled = TRUE; } rdp_set_blocking_mode(rdp, FALSE); rdp_client_transition_to_state(rdp, CONNECTION_STATE_NEGO); rdp->finalize_sc_pdus = 0; if (!mcs_send_connect_initial(rdp->mcs)) { if (!connectErrorCode) { connectErrorCode = MCSCONNECTINITIALERROR; } if (!freerdp_get_last_error(rdp->context)) { freerdp_set_last_error(rdp->context, FREERDP_ERROR_MCS_CONNECT_INITIAL_ERROR); } WLog_ERR(TAG, "Error: unable to send MCS Connect Initial"); return FALSE; } while (rdp->state != CONNECTION_STATE_ACTIVE) { if (rdp_check_fds(rdp) < 0) { if (!freerdp_get_last_error(rdp->context)) { freerdp_set_last_error(rdp->context, FREERDP_ERROR_CONNECT_TRANSPORT_FAILED); } return FALSE; } } return TRUE; }
BOOL rdp_client_connect(rdpRdp* rdp) { rdpSettings* settings = rdp->settings; nego_init(rdp->nego); nego_set_target(rdp->nego, settings->ServerHostname, settings->ServerPort); if (settings->GatewayEnabled) { char* user; char* domain; char* cookie; int user_length = 0; int domain_length; int cookie_length; if (settings->Username) { user = settings->Username; user_length = strlen(settings->Username); } if (settings->Domain) domain = settings->Domain; else domain = settings->ComputerName; domain_length = strlen(domain); cookie_length = domain_length + 1 + user_length; cookie = (char*) malloc(cookie_length + 1); CopyMemory(cookie, domain, domain_length); CharUpperBuffA(cookie, domain_length); cookie[domain_length] = '\\'; if (settings->Username) CopyMemory(&cookie[domain_length + 1], user, user_length); cookie[cookie_length] = '\0'; nego_set_cookie(rdp->nego, cookie); free(cookie); settings->RdpSecurity = TRUE; settings->TlsSecurity = FALSE; settings->NlaSecurity = FALSE; settings->ExtSecurity = FALSE; //settings->TlsSecurity = TRUE; //settings->NlaSecurity = TRUE; } else { nego_set_cookie(rdp->nego, settings->Username); } nego_set_send_preconnection_pdu(rdp->nego, settings->SendPreconnectionPdu); nego_set_preconnection_id(rdp->nego, settings->PreconnectionId); nego_set_preconnection_blob(rdp->nego, settings->PreconnectionBlob); nego_set_negotiation_enabled(rdp->nego, settings->NegotiateSecurityLayer); nego_enable_rdp(rdp->nego, settings->RdpSecurity); nego_enable_tls(rdp->nego, settings->TlsSecurity); nego_enable_nla(rdp->nego, settings->NlaSecurity); nego_enable_ext(rdp->nego, settings->ExtSecurity); if (settings->MstscCookieMode) settings->CookieMaxLength = MSTSC_COOKIE_MAX_LENGTH; nego_set_cookie_max_length(rdp->nego, settings->CookieMaxLength); if (settings->LoadBalanceInfo) nego_set_routing_token(rdp->nego, settings->LoadBalanceInfo, settings->LoadBalanceInfoLength); if (!nego_connect(rdp->nego)) { fprintf(stderr, "Error: protocol security negotiation or connection failure\n"); return FALSE; } if ((rdp->nego->selected_protocol & PROTOCOL_TLS) || (rdp->nego->selected_protocol == PROTOCOL_RDP)) { if ((settings->Username != NULL) && ((settings->Password != NULL) || (settings->RedirectionPassword != NULL && settings->RedirectionPasswordLength > 0))) settings->AutoLogonEnabled = TRUE; } rdp_set_blocking_mode(rdp, FALSE); rdp->state = CONNECTION_STATE_NEGO; rdp->finalize_sc_pdus = 0; if (!mcs_send_connect_initial(rdp->mcs)) { if (!connectErrorCode) { connectErrorCode = MCSCONNECTINITIALERROR; } fprintf(stderr, "Error: unable to send MCS Connect Initial\n"); return FALSE; } while (rdp->state != CONNECTION_STATE_ACTIVE) { if (rdp_check_fds(rdp) < 0) return FALSE; } return TRUE; }
BOOL rdp_client_connect(rdpRdp* rdp) { BOOL status; rdpSettings* settings = rdp->settings; /* make sure SSL is initialize for earlier enough for crypto, by taking advantage of winpr SSL FIPS flag for openssl initialization */ DWORD flags = WINPR_SSL_INIT_DEFAULT; if (settings->FIPSMode) flags |= WINPR_SSL_INIT_ENABLE_FIPS; winpr_InitializeSSL(flags); /* FIPS Mode forces the following and overrides the following(by happening later */ /* in the command line processing): */ /* 1. Disables NLA Security since NLA in freerdp uses NTLM(no Kerberos support yet) which uses algorithms */ /* not allowed in FIPS for sensitive data. So, we disallow NLA when FIPS is required. */ /* 2. Forces the only supported RDP encryption method to be FIPS. */ if (settings->FIPSMode || winpr_FIPSMode()) { settings->NlaSecurity = FALSE; settings->EncryptionMethods = ENCRYPTION_METHOD_FIPS; } nego_init(rdp->nego); nego_set_target(rdp->nego, settings->ServerHostname, settings->ServerPort); if (settings->GatewayEnabled) { char* user = NULL; char* domain = NULL; char* cookie = NULL; int user_length = 0; int domain_length = 0; int cookie_length = 0; if (settings->Username) { user = settings->Username; user_length = strlen(settings->Username); } if (settings->Domain) domain = settings->Domain; else domain = settings->ComputerName; domain_length = strlen(domain); cookie_length = domain_length + 1 + user_length; cookie = (char*) malloc(cookie_length + 1); if (!cookie) return FALSE; CopyMemory(cookie, domain, domain_length); CharUpperBuffA(cookie, domain_length); cookie[domain_length] = '\\'; if (settings->Username) CopyMemory(&cookie[domain_length + 1], user, user_length); cookie[cookie_length] = '\0'; status = nego_set_cookie(rdp->nego, cookie); free(cookie); } else { status = nego_set_cookie(rdp->nego, settings->Username); } if (!status) return FALSE; nego_set_send_preconnection_pdu(rdp->nego, settings->SendPreconnectionPdu); nego_set_preconnection_id(rdp->nego, settings->PreconnectionId); nego_set_preconnection_blob(rdp->nego, settings->PreconnectionBlob); nego_set_negotiation_enabled(rdp->nego, settings->NegotiateSecurityLayer); nego_set_restricted_admin_mode_required(rdp->nego, settings->RestrictedAdminModeRequired); nego_set_gateway_enabled(rdp->nego, settings->GatewayEnabled); nego_set_gateway_bypass_local(rdp->nego, settings->GatewayBypassLocal); nego_enable_rdp(rdp->nego, settings->RdpSecurity); nego_enable_tls(rdp->nego, settings->TlsSecurity); nego_enable_nla(rdp->nego, settings->NlaSecurity); nego_enable_ext(rdp->nego, settings->ExtSecurity); if (settings->MstscCookieMode) settings->CookieMaxLength = MSTSC_COOKIE_MAX_LENGTH; nego_set_cookie_max_length(rdp->nego, settings->CookieMaxLength); if (settings->LoadBalanceInfo) { if (!nego_set_routing_token(rdp->nego, settings->LoadBalanceInfo, settings->LoadBalanceInfoLength)) return FALSE; } rdp_client_transition_to_state(rdp, CONNECTION_STATE_NEGO); if (!nego_connect(rdp->nego)) { if (!freerdp_get_last_error(rdp->context)) freerdp_set_last_error(rdp->context, FREERDP_ERROR_SECURITY_NEGO_CONNECT_FAILED); WLog_ERR(TAG, "Error: protocol security negotiation or connection failure"); return FALSE; } if ((rdp->nego->SelectedProtocol & PROTOCOL_TLS) || (rdp->nego->SelectedProtocol == PROTOCOL_RDP)) { if ((settings->Username != NULL) && ((settings->Password != NULL) || (settings->RedirectionPassword != NULL && settings->RedirectionPasswordLength > 0))) settings->AutoLogonEnabled = TRUE; } /* everything beyond this point is event-driven and non blocking */ rdp->transport->ReceiveCallback = rdp_recv_callback; rdp->transport->ReceiveExtra = rdp; transport_set_blocking_mode(rdp->transport, FALSE); if (rdp->state != CONNECTION_STATE_NLA) { if (!mcs_client_begin(rdp->mcs)) return FALSE; } while (rdp->state != CONNECTION_STATE_ACTIVE) { if (rdp_check_fds(rdp) < 0) { if (!freerdp_get_last_error(rdp->context)) freerdp_set_last_error(rdp->context, FREERDP_ERROR_CONNECT_TRANSPORT_FAILED); return FALSE; } } return TRUE; }