FreeRDP/libfreerdp/core/rpc.c

1403 lines
38 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
* RPC over HTTP
*
* Copyright 2012 Fujitsu Technology Solutions GmbH
* Copyright 2012 Dmitrij Jasnov <dmitrij.jasnov@ts.fujitsu.com>
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/tchar.h>
#include <winpr/dsparse.h>
#include <openssl/rand.h>
#include "http.h"
#include "rpc.h"
/* Syntax UUIDs */
const p_uuid_t TSGU_UUID =
{
0x44E265DD, /* time_low */
0x7DAF, /* time_mid */
0x42CD, /* time_hi_and_version */
0x85, /* clock_seq_hi_and_reserved */
0x60, /* clock_seq_low */
{ 0x3C, 0xDB, 0x6E, 0x7A, 0x27, 0x29 } /* node[6] */
};
#define TSGU_SYNTAX_IF_VERSION 0x00030001
const p_uuid_t NDR_UUID =
{
0x8A885D04, /* time_low */
0x1CEB, /* time_mid */
0x11C9, /* time_hi_and_version */
0x9F, /* clock_seq_hi_and_reserved */
0xE8, /* clock_seq_low */
{ 0x08, 0x00, 0x2B, 0x10, 0x48, 0x60 } /* node[6] */
};
#define NDR_SYNTAX_IF_VERSION 0x00000002
const p_uuid_t BTFN_UUID =
{
0x6CB71C2C, /* time_low */
0x9812, /* time_mid */
0x4540, /* time_hi_and_version */
0x03, /* clock_seq_hi_and_reserved */
0x00, /* clock_seq_low */
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } /* node[6] */
};
#define BTFN_SYNTAX_IF_VERSION 0x00000001
extern const RPC_FAULT_CODE RPC_TSG_FAULT_CODES[];
static char* PTYPE_STRINGS[] =
{
"PTYPE_REQUEST",
"PTYPE_PING",
"PTYPE_RESPONSE",
"PTYPE_FAULT",
"PTYPE_WORKING",
"PTYPE_NOCALL",
"PTYPE_REJECT",
"PTYPE_ACK",
"PTYPE_CL_CANCEL",
"PTYPE_FACK",
"PTYPE_CANCEL_ACK",
"PTYPE_BIND",
"PTYPE_BIND_ACK",
"PTYPE_BIND_NAK",
"PTYPE_ALTER_CONTEXT",
"PTYPE_ALTER_CONTEXT_RESP",
"PTYPE_RPC_AUTH_3",
"PTYPE_SHUTDOWN",
"PTYPE_CO_CANCEL",
"PTYPE_ORPHANED",
"PTYPE_RTS",
""
};
const RPC_FAULT_CODE RPC_FAULT_CODES[] =
{
DEFINE_RPC_FAULT_CODE(nca_s_fault_object_not_found)
DEFINE_RPC_FAULT_CODE(nca_s_fault_cancel)
DEFINE_RPC_FAULT_CODE(nca_s_fault_addr_error)
DEFINE_RPC_FAULT_CODE(nca_s_fault_context_mismatch)
DEFINE_RPC_FAULT_CODE(nca_s_fault_fp_div_zero)
DEFINE_RPC_FAULT_CODE(nca_s_fault_fp_error)
DEFINE_RPC_FAULT_CODE(nca_s_fault_fp_overflow)
DEFINE_RPC_FAULT_CODE(nca_s_fault_fp_underflow)
DEFINE_RPC_FAULT_CODE(nca_s_fault_ill_inst)
DEFINE_RPC_FAULT_CODE(nca_s_fault_int_div_by_zero)
DEFINE_RPC_FAULT_CODE(nca_s_fault_int_overflow)
DEFINE_RPC_FAULT_CODE(nca_s_fault_invalid_bound)
DEFINE_RPC_FAULT_CODE(nca_s_fault_invalid_tag)
DEFINE_RPC_FAULT_CODE(nca_s_fault_pipe_closed)
DEFINE_RPC_FAULT_CODE(nca_s_fault_pipe_comm_error)
DEFINE_RPC_FAULT_CODE(nca_s_fault_pipe_discipline)
DEFINE_RPC_FAULT_CODE(nca_s_fault_pipe_empty)
DEFINE_RPC_FAULT_CODE(nca_s_fault_pipe_memory)
DEFINE_RPC_FAULT_CODE(nca_s_fault_pipe_order)
DEFINE_RPC_FAULT_CODE(nca_s_fault_remote_no_memory)
DEFINE_RPC_FAULT_CODE(nca_s_fault_user_defined)
DEFINE_RPC_FAULT_CODE(nca_s_fault_tx_open_failed)
DEFINE_RPC_FAULT_CODE(nca_s_fault_codeset_conv_error)
DEFINE_RPC_FAULT_CODE(nca_s_fault_no_client_stub)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_STRING_BINDING)
DEFINE_RPC_FAULT_CODE(RPC_S_WRONG_KIND_OF_BINDING)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_BINDING)
DEFINE_RPC_FAULT_CODE(RPC_S_PROTSEQ_NOT_SUPPORTED)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_RPC_PROTSEQ)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_STRING_UUID)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_ENDPOINT_FORMAT)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_NET_ADDR)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_ENDPOINT_FOUND)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_TIMEOUT)
DEFINE_RPC_FAULT_CODE(RPC_S_OBJECT_NOT_FOUND)
DEFINE_RPC_FAULT_CODE(RPC_S_ALREADY_REGISTERED)
DEFINE_RPC_FAULT_CODE(RPC_S_TYPE_ALREADY_REGISTERED)
DEFINE_RPC_FAULT_CODE(RPC_S_ALREADY_LISTENING)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_PROTSEQS_REGISTERED)
DEFINE_RPC_FAULT_CODE(RPC_S_NOT_LISTENING)
DEFINE_RPC_FAULT_CODE(RPC_S_UNKNOWN_MGR_TYPE)
DEFINE_RPC_FAULT_CODE(RPC_S_UNKNOWN_IF)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_BINDINGS)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_PROTSEQS)
DEFINE_RPC_FAULT_CODE(RPC_S_CANT_CREATE_ENDPOINT)
DEFINE_RPC_FAULT_CODE(RPC_S_OUT_OF_RESOURCES)
DEFINE_RPC_FAULT_CODE(RPC_S_SERVER_UNAVAILABLE)
DEFINE_RPC_FAULT_CODE(RPC_S_SERVER_TOO_BUSY)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_NETWORK_OPTIONS)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_CALL_ACTIVE)
DEFINE_RPC_FAULT_CODE(RPC_S_CALL_FAILED)
DEFINE_RPC_FAULT_CODE(RPC_S_CALL_FAILED_DNE)
DEFINE_RPC_FAULT_CODE(RPC_S_PROTOCOL_ERROR)
DEFINE_RPC_FAULT_CODE(RPC_S_PROXY_ACCESS_DENIED)
DEFINE_RPC_FAULT_CODE(RPC_S_UNSUPPORTED_TRANS_SYN)
DEFINE_RPC_FAULT_CODE(RPC_S_UNSUPPORTED_TYPE)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_TAG)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_BOUND)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_ENTRY_NAME)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_NAME_SYNTAX)
DEFINE_RPC_FAULT_CODE(RPC_S_UNSUPPORTED_NAME_SYNTAX)
DEFINE_RPC_FAULT_CODE(RPC_S_UUID_NO_ADDRESS)
DEFINE_RPC_FAULT_CODE(RPC_S_DUPLICATE_ENDPOINT)
DEFINE_RPC_FAULT_CODE(RPC_S_UNKNOWN_AUTHN_TYPE)
DEFINE_RPC_FAULT_CODE(RPC_S_MAX_CALLS_TOO_SMALL)
DEFINE_RPC_FAULT_CODE(RPC_S_STRING_TOO_LONG)
DEFINE_RPC_FAULT_CODE(RPC_S_PROTSEQ_NOT_FOUND)
DEFINE_RPC_FAULT_CODE(RPC_S_PROCNUM_OUT_OF_RANGE)
DEFINE_RPC_FAULT_CODE(RPC_S_BINDING_HAS_NO_AUTH)
DEFINE_RPC_FAULT_CODE(RPC_S_UNKNOWN_AUTHN_SERVICE)
DEFINE_RPC_FAULT_CODE(RPC_S_UNKNOWN_AUTHN_LEVEL)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_AUTH_IDENTITY)
DEFINE_RPC_FAULT_CODE(RPC_S_UNKNOWN_AUTHZ_SERVICE)
DEFINE_RPC_FAULT_CODE(EPT_S_INVALID_ENTRY)
DEFINE_RPC_FAULT_CODE(EPT_S_CANT_PERFORM_OP)
DEFINE_RPC_FAULT_CODE(EPT_S_NOT_REGISTERED)
DEFINE_RPC_FAULT_CODE(RPC_S_NOTHING_TO_EXPORT)
DEFINE_RPC_FAULT_CODE(RPC_S_INCOMPLETE_NAME)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_VERS_OPTION)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_MORE_MEMBERS)
DEFINE_RPC_FAULT_CODE(RPC_S_NOT_ALL_OBJS_UNEXPORTED)
DEFINE_RPC_FAULT_CODE(RPC_S_INTERFACE_NOT_FOUND)
DEFINE_RPC_FAULT_CODE(RPC_S_ENTRY_ALREADY_EXISTS)
DEFINE_RPC_FAULT_CODE(RPC_S_ENTRY_NOT_FOUND)
DEFINE_RPC_FAULT_CODE(RPC_S_NAME_SERVICE_UNAVAILABLE)
DEFINE_RPC_FAULT_CODE(RPC_S_INVALID_NAF_ID)
DEFINE_RPC_FAULT_CODE(RPC_S_CANNOT_SUPPORT)
DEFINE_RPC_FAULT_CODE(RPC_S_NO_CONTEXT_AVAILABLE)
DEFINE_RPC_FAULT_CODE(RPC_S_INTERNAL_ERROR)
DEFINE_RPC_FAULT_CODE(RPC_S_ZERO_DIVIDE)
DEFINE_RPC_FAULT_CODE(RPC_S_ADDRESS_ERROR)
DEFINE_RPC_FAULT_CODE(RPC_S_FP_DIV_ZERO)
DEFINE_RPC_FAULT_CODE(RPC_S_FP_UNDERFLOW)
DEFINE_RPC_FAULT_CODE(RPC_S_FP_OVERFLOW)
DEFINE_RPC_FAULT_CODE(RPC_X_NO_MORE_ENTRIES)
DEFINE_RPC_FAULT_CODE(RPC_X_SS_CHAR_TRANS_OPEN_FAIL)
DEFINE_RPC_FAULT_CODE(RPC_X_SS_CHAR_TRANS_SHORT_FILE)
DEFINE_RPC_FAULT_CODE(RPC_X_SS_IN_NULL_CONTEXT)
DEFINE_RPC_FAULT_CODE(RPC_X_SS_CONTEXT_DAMAGED)
DEFINE_RPC_FAULT_CODE(RPC_X_SS_HANDLES_MISMATCH)
DEFINE_RPC_FAULT_CODE(RPC_X_SS_CANNOT_GET_CALL_HANDLE)
DEFINE_RPC_FAULT_CODE(RPC_X_NULL_REF_POINTER)
DEFINE_RPC_FAULT_CODE(RPC_X_ENUM_VALUE_OUT_OF_RANGE)
DEFINE_RPC_FAULT_CODE(RPC_X_BYTE_COUNT_TOO_SMALL)
DEFINE_RPC_FAULT_CODE(RPC_X_BAD_STUB_DATA)
{ 0, NULL }
};
void rpc_pdu_header_print(RPC_PDU_HEADER* header)
{
printf("rpc_vers: %d\n", header->rpc_vers);
printf("rpc_vers_minor: %d\n", header->rpc_vers_minor);
if (header->ptype > PTYPE_RTS)
printf("ptype: %s (%d)\n", "PTYPE_UNKNOWN", header->ptype);
else
printf("ptype: %s (%d)\n", PTYPE_STRINGS[header->ptype], header->ptype);
printf("pfc_flags (0x%02X) = {", header->pfc_flags);
if (header->pfc_flags & PFC_FIRST_FRAG)
printf(" PFC_FIRST_FRAG");
if (header->pfc_flags & PFC_LAST_FRAG)
printf(" PFC_LAST_FRAG");
if (header->pfc_flags & PFC_PENDING_CANCEL)
printf(" PFC_PENDING_CANCEL");
if (header->pfc_flags & PFC_RESERVED_1)
printf(" PFC_RESERVED_1");
if (header->pfc_flags & PFC_CONC_MPX)
printf(" PFC_CONC_MPX");
if (header->pfc_flags & PFC_DID_NOT_EXECUTE)
printf(" PFC_DID_NOT_EXECUTE");
if (header->pfc_flags & PFC_OBJECT_UUID)
printf(" PFC_OBJECT_UUID");
printf(" }\n");
printf("packed_drep[4]: %02X %02X %02X %02X\n",
header->packed_drep[0], header->packed_drep[1],
header->packed_drep[2], header->packed_drep[3]);
printf("frag_length: %d\n", header->frag_length);
printf("auth_length: %d\n", header->auth_length);
printf("call_id: %d\n", header->call_id);
if (header->ptype == PTYPE_RESPONSE)
{
rpcconn_response_hdr_t* response;
response = (rpcconn_response_hdr_t*) header;
printf("alloc_hint: %d\n", response->alloc_hint);
printf("p_cont_id: %d\n", response->p_cont_id);
printf("cancel_count: %d\n", response->cancel_count);
printf("reserved: %d\n", response->reserved);
}
}
/**
* The Security Support Provider Interface:
* http://technet.microsoft.com/en-us/library/bb742535/
*/
BOOL ntlm_client_init(rdpNtlm* ntlm, BOOL http, char* user, char* domain, char* password)
{
SECURITY_STATUS status;
sspi_GlobalInit();
#ifdef WITH_NATIVE_SSPI
{
HMODULE hSSPI;
INIT_SECURITY_INTERFACE InitSecurityInterface;
PSecurityFunctionTable pSecurityInterface = NULL;
hSSPI = LoadLibrary(_T("secur32.dll"));
#ifdef UNICODE
InitSecurityInterface = (INIT_SECURITY_INTERFACE) GetProcAddress(hSSPI, "InitSecurityInterfaceW");
#else
InitSecurityInterface = (INIT_SECURITY_INTERFACE) GetProcAddress(hSSPI, "InitSecurityInterfaceA");
#endif
ntlm->table = (*InitSecurityInterface)();
}
#else
ntlm->table = InitSecurityInterface();
#endif
sspi_SetAuthIdentity(&(ntlm->identity), user, domain, password);
if (http)
{
DWORD status;
DWORD SpnLength;
SpnLength = 0;
status = DsMakeSpn(_T("HTTP"), _T("LAB1-W2K8R2-GW.lab1.awake.local"), NULL, 0, NULL, &SpnLength, NULL);
if (status != ERROR_BUFFER_OVERFLOW)
{
_tprintf(_T("DsMakeSpn: expected ERROR_BUFFER_OVERFLOW\n"));
return -1;
}
ntlm->ServicePrincipalName = (LPTSTR) malloc(SpnLength * sizeof(TCHAR));
status = DsMakeSpn(_T("HTTP"), _T("LAB1-W2K8R2-GW.lab1.awake.local"), NULL, 0, NULL, &SpnLength, ntlm->ServicePrincipalName);
}
status = ntlm->table->QuerySecurityPackageInfo(NTLMSP_NAME, &ntlm->pPackageInfo);
if (status != SEC_E_OK)
{
printf("QuerySecurityPackageInfo status: 0x%08X\n", status);
return FALSE;
}
ntlm->cbMaxToken = ntlm->pPackageInfo->cbMaxToken;
status = ntlm->table->AcquireCredentialsHandle(NULL, NTLMSP_NAME,
SECPKG_CRED_OUTBOUND, NULL, &ntlm->identity, NULL, NULL, &ntlm->credentials, &ntlm->expiration);
if (status != SEC_E_OK)
{
printf("AcquireCredentialsHandle status: 0x%08X\n", status);
return FALSE;
}
ntlm->haveContext = FALSE;
ntlm->haveInputBuffer = FALSE;
ZeroMemory(&ntlm->inputBuffer, sizeof(SecBuffer));
ZeroMemory(&ntlm->outputBuffer, sizeof(SecBuffer));
ZeroMemory(&ntlm->ContextSizes, sizeof(SecPkgContext_Sizes));
ntlm->fContextReq = 0;
if (http)
{
/* flags for HTTP authentication */
ntlm->fContextReq |= ISC_REQ_CONFIDENTIALITY;
}
else
{
/**
* flags for RPC authentication:
* RPC_C_AUTHN_LEVEL_PKT_INTEGRITY:
* ISC_REQ_USE_DCE_STYLE | ISC_REQ_DELEGATE | ISC_REQ_MUTUAL_AUTH |
* ISC_REQ_REPLAY_DETECT | ISC_REQ_SEQUENCE_DETECT
*/
ntlm->fContextReq |= ISC_REQ_USE_DCE_STYLE;
ntlm->fContextReq |= ISC_REQ_DELEGATE | ISC_REQ_MUTUAL_AUTH;
ntlm->fContextReq |= ISC_REQ_REPLAY_DETECT | ISC_REQ_SEQUENCE_DETECT;
}
return TRUE;
}
BOOL ntlm_client_make_spn(rdpNtlm* ntlm, LPCTSTR ServiceClass, char* hostname)
{
int length;
DWORD status;
DWORD SpnLength;
LPTSTR hostnameX;
length = 0;
#ifdef UNICODE
length = strlen(hostname);
hostnameX = (LPWSTR) malloc(length * sizeof(TCHAR));
MultiByteToWideChar(CP_ACP, 0, hostname, length, hostnameX, length);
hostnameX[length] = 0;
#else
hostnameX = hostname;
#endif
SpnLength = 0;
status = DsMakeSpn(ServiceClass, hostnameX, NULL, 0, NULL, &SpnLength, NULL);
if (status != ERROR_BUFFER_OVERFLOW)
return FALSE;
ntlm->ServicePrincipalName = (LPTSTR) malloc(SpnLength * sizeof(TCHAR));
status = DsMakeSpn(ServiceClass, hostnameX, NULL, 0, NULL, &SpnLength, ntlm->ServicePrincipalName);
if (status != ERROR_SUCCESS)
return -1;
return TRUE;
}
BOOL ntlm_authenticate(rdpNtlm* ntlm)
{
SECURITY_STATUS status;
ntlm->outputBufferDesc.ulVersion = SECBUFFER_VERSION;
ntlm->outputBufferDesc.cBuffers = 1;
ntlm->outputBufferDesc.pBuffers = &ntlm->outputBuffer;
ntlm->outputBuffer.BufferType = SECBUFFER_TOKEN;
ntlm->outputBuffer.cbBuffer = ntlm->cbMaxToken;
ntlm->outputBuffer.pvBuffer = malloc(ntlm->outputBuffer.cbBuffer);
if (ntlm->haveInputBuffer)
{
ntlm->inputBufferDesc.ulVersion = SECBUFFER_VERSION;
ntlm->inputBufferDesc.cBuffers = 1;
ntlm->inputBufferDesc.pBuffers = &ntlm->inputBuffer;
ntlm->inputBuffer.BufferType = SECBUFFER_TOKEN;
}
status = ntlm->table->InitializeSecurityContext(&ntlm->credentials,
(ntlm->haveContext) ? &ntlm->context : NULL,
(ntlm->ServicePrincipalName) ? ntlm->ServicePrincipalName : NULL,
ntlm->fContextReq, 0, SECURITY_NATIVE_DREP,
(ntlm->haveInputBuffer) ? &ntlm->inputBufferDesc : NULL,
0, &ntlm->context, &ntlm->outputBufferDesc,
&ntlm->pfContextAttr, &ntlm->expiration);
if ((status == SEC_I_COMPLETE_AND_CONTINUE) || (status == SEC_I_COMPLETE_NEEDED) || (status == SEC_E_OK))
{
if (ntlm->table->CompleteAuthToken != NULL)
ntlm->table->CompleteAuthToken(&ntlm->context, &ntlm->outputBufferDesc);
if (ntlm->table->QueryContextAttributes(&ntlm->context, SECPKG_ATTR_SIZES, &ntlm->ContextSizes) != SEC_E_OK)
{
printf("QueryContextAttributes SECPKG_ATTR_SIZES failure\n");
return FALSE ;
}
if (status == SEC_I_COMPLETE_NEEDED)
status = SEC_E_OK;
else if (status == SEC_I_COMPLETE_AND_CONTINUE)
status = SEC_I_CONTINUE_NEEDED;
}
ntlm->haveInputBuffer = TRUE;
ntlm->haveContext = TRUE;
return TRUE;
}
void ntlm_client_uninit(rdpNtlm* ntlm)
{
ntlm->table->FreeCredentialsHandle(&ntlm->credentials);
ntlm->table->FreeContextBuffer(ntlm->pPackageInfo);
}
rdpNtlm* ntlm_new()
{
rdpNtlm* ntlm = (rdpNtlm*) malloc(sizeof(rdpNtlm));
if (ntlm != NULL)
{
ZeroMemory(ntlm, sizeof(rdpNtlm));
}
return ntlm;
}
void ntlm_free(rdpNtlm* ntlm)
{
if (ntlm != NULL)
{
}
}
STREAM* rpc_ntlm_http_request(rdpRpc* rpc, SecBuffer* ntlm_token, int content_length, TSG_CHANNEL channel)
{
STREAM* s;
char* base64_ntlm_token;
HttpContext* http_context;
HttpRequest* http_request;
http_request = http_request_new();
base64_ntlm_token = crypto_base64_encode(ntlm_token->pvBuffer, ntlm_token->cbBuffer);
if (channel == TSG_CHANNEL_IN)
{
http_context = rpc->ntlm_http_in->context;
http_request_set_method(http_request, "RPC_IN_DATA");
}
else if (channel == TSG_CHANNEL_OUT)
{
http_context = rpc->ntlm_http_out->context;
http_request_set_method(http_request, "RPC_OUT_DATA");
}
else
{
return NULL;
}
http_request->ContentLength = content_length;
http_request_set_uri(http_request, http_context->URI);
http_request_set_auth_scheme(http_request, "NTLM");
http_request_set_auth_param(http_request, base64_ntlm_token);
s = http_request_write(http_context, http_request);
http_request_free(http_request);
free(base64_ntlm_token);
return s;
}
BOOL rpc_ntlm_http_out_connect(rdpRpc* rpc)
{
STREAM* s;
rdpSettings* settings;
int ntlm_token_length;
BYTE* ntlm_token_data;
HttpResponse* http_response;
rdpNtlm* ntlm = rpc->ntlm_http_out->ntlm;
settings = rpc->settings;
if (settings->GatewayUseSameCredentials)
{
ntlm_client_init(ntlm, TRUE, settings->Username,
settings->Domain, settings->Password);
ntlm_client_make_spn(ntlm, _T("HTTP"), settings->GatewayHostname);
}
else
{
ntlm_client_init(ntlm, TRUE, settings->GatewayUsername,
settings->GatewayDomain, settings->GatewayPassword);
ntlm_client_make_spn(ntlm, _T("HTTP"), settings->GatewayHostname);
}
ntlm_authenticate(ntlm);
s = rpc_ntlm_http_request(rpc, &ntlm->outputBuffer, 0, TSG_CHANNEL_OUT);
/* Send OUT Channel Request */
DEBUG_RPC("\n%s", s->data);
tls_write_all(rpc->tls_out, s->data, s->size);
stream_free(s);
/* Receive OUT Channel Response */
http_response = http_response_recv(rpc->tls_out);
ntlm_token_data = NULL;
crypto_base64_decode((BYTE*) http_response->AuthParam, strlen(http_response->AuthParam),
&ntlm_token_data, &ntlm_token_length);
ntlm->inputBuffer.pvBuffer = ntlm_token_data;
ntlm->inputBuffer.cbBuffer = ntlm_token_length;
ntlm_authenticate(ntlm);
http_response_free(http_response);
s = rpc_ntlm_http_request(rpc, &ntlm->outputBuffer, 76, TSG_CHANNEL_OUT);
/* Send OUT Channel Request */
DEBUG_RPC("\n%s", s->data);
tls_write_all(rpc->tls_out, s->data, s->size);
stream_free(s);
ntlm_client_uninit(ntlm);
ntlm_free(ntlm);
return TRUE;
}
BOOL rpc_ntlm_http_in_connect(rdpRpc* rpc)
{
STREAM* s;
rdpSettings* settings;
int ntlm_token_length;
BYTE* ntlm_token_data;
HttpResponse* http_response;
rdpNtlm* ntlm = rpc->ntlm_http_in->ntlm;
settings = rpc->settings;
if (settings->GatewayUseSameCredentials)
{
ntlm_client_init(ntlm, TRUE, settings->Username,
settings->Domain, settings->Password);
ntlm_client_make_spn(ntlm, _T("HTTP"), settings->GatewayHostname);
}
else
{
ntlm_client_init(ntlm, TRUE, settings->GatewayUsername,
settings->GatewayDomain, settings->GatewayPassword);
ntlm_client_make_spn(ntlm, _T("HTTP"), settings->GatewayHostname);
}
ntlm_authenticate(ntlm);
s = rpc_ntlm_http_request(rpc, &ntlm->outputBuffer, 0, TSG_CHANNEL_IN);
/* Send IN Channel Request */
DEBUG_RPC("\n%s", s->data);
tls_write_all(rpc->tls_in, s->data, s->size);
stream_free(s);
/* Receive IN Channel Response */
http_response = http_response_recv(rpc->tls_in);
ntlm_token_data = NULL;
crypto_base64_decode((BYTE*) http_response->AuthParam, strlen(http_response->AuthParam),
&ntlm_token_data, &ntlm_token_length);
ntlm->inputBuffer.pvBuffer = ntlm_token_data;
ntlm->inputBuffer.cbBuffer = ntlm_token_length;
ntlm_authenticate(ntlm);
http_response_free(http_response);
s = rpc_ntlm_http_request(rpc, &ntlm->outputBuffer, 0x40000000, TSG_CHANNEL_IN);
/* Send IN Channel Request */
DEBUG_RPC("\n%s", s->data);
tls_write_all(rpc->tls_in, s->data, s->size);
stream_free(s);
ntlm_client_uninit(ntlm);
ntlm_free(ntlm);
return TRUE;
}
void rpc_pdu_header_init(rdpRpc* rpc, RPC_PDU_HEADER* header)
{
header->rpc_vers = rpc->rpc_vers;
header->rpc_vers_minor = rpc->rpc_vers_minor;
header->packed_drep[0] = rpc->packed_drep[0];
header->packed_drep[1] = rpc->packed_drep[1];
header->packed_drep[2] = rpc->packed_drep[2];
header->packed_drep[3] = rpc->packed_drep[3];
}
int rpc_out_write(rdpRpc* rpc, BYTE* data, int length)
{
int status;
rpc_pdu_header_print((RPC_PDU_HEADER*) data);
#ifdef WITH_DEBUG_RPC
printf("rpc_out_write(): length: %d\n", length);
freerdp_hexdump(data, length);
printf("\n");
#endif
status = tls_write_all(rpc->tls_out, data, length);
return status;
}
int rpc_in_write(rdpRpc* rpc, BYTE* data, int length)
{
int status;
rpc_pdu_header_print((RPC_PDU_HEADER*) data);
#ifdef WITH_DEBUG_RPC
printf("rpc_in_write() length: %d\n", length);
freerdp_hexdump(data, length);
printf("\n");
#endif
status = tls_write_all(rpc->tls_in, data, length);
if (status > 0)
rpc->VirtualConnection->DefaultInChannel->BytesSent += status;
return status;
}
UINT32 rpc_offset_align(UINT32* offset, UINT32 alignment)
{
UINT32 pad;
pad = *offset;
*offset = (*offset + alignment - 1) & ~(alignment - 1);
pad = *offset - pad;
return pad;
}
UINT32 rpc_offset_pad(UINT32* offset, UINT32 pad)
{
*offset += pad;
return pad;
}
BOOL rpc_send_bind_pdu(rdpRpc* rpc)
{
BYTE* buffer;
UINT32 offset;
p_cont_elem_t* p_cont_elem;
rpcconn_bind_hdr_t* bind_pdu;
rdpSettings* settings = rpc->settings;
rpc->ntlm = ntlm_new();
DEBUG_RPC("Sending bind PDU");
ntlm_client_init(rpc->ntlm, FALSE, settings->Username, settings->Domain, settings->Password);
ntlm_authenticate(rpc->ntlm);
bind_pdu = (rpcconn_bind_hdr_t*) malloc(sizeof(rpcconn_bind_hdr_t));
ZeroMemory(bind_pdu, sizeof(rpcconn_bind_hdr_t));
rpc_pdu_header_init(rpc, (RPC_PDU_HEADER*) bind_pdu);
bind_pdu->auth_length = rpc->ntlm->outputBuffer.cbBuffer;
bind_pdu->auth_verifier.auth_value = rpc->ntlm->outputBuffer.pvBuffer;
bind_pdu->ptype = PTYPE_BIND;
bind_pdu->pfc_flags = PFC_FIRST_FRAG | PFC_LAST_FRAG | PFC_PENDING_CANCEL | PFC_CONC_MPX;
bind_pdu->call_id = 2;
bind_pdu->max_xmit_frag = 0x0FF8;
bind_pdu->max_recv_frag = 0x0FF8;
bind_pdu->assoc_group_id = 0;
bind_pdu->p_context_elem.n_context_elem = 2;
bind_pdu->p_context_elem.reserved = 0;
bind_pdu->p_context_elem.reserved2 = 0;
bind_pdu->p_context_elem.p_cont_elem = malloc(sizeof(p_cont_elem_t) * bind_pdu->p_context_elem.n_context_elem);
p_cont_elem = &bind_pdu->p_context_elem.p_cont_elem[0];
p_cont_elem->p_cont_id = 0;
p_cont_elem->n_transfer_syn = 1;
p_cont_elem->reserved = 0;
CopyMemory(&(p_cont_elem->abstract_syntax.if_uuid), &TSGU_UUID, sizeof(p_uuid_t));
p_cont_elem->abstract_syntax.if_version = TSGU_SYNTAX_IF_VERSION;
p_cont_elem->transfer_syntaxes = malloc(sizeof(p_syntax_id_t));
CopyMemory(&(p_cont_elem->transfer_syntaxes[0].if_uuid), &NDR_UUID, sizeof(p_uuid_t));
p_cont_elem->transfer_syntaxes[0].if_version = NDR_SYNTAX_IF_VERSION;
p_cont_elem = &bind_pdu->p_context_elem.p_cont_elem[1];
p_cont_elem->p_cont_id = 1;
p_cont_elem->n_transfer_syn = 1;
p_cont_elem->reserved = 0;
CopyMemory(&(p_cont_elem->abstract_syntax.if_uuid), &TSGU_UUID, sizeof(p_uuid_t));
p_cont_elem->abstract_syntax.if_version = TSGU_SYNTAX_IF_VERSION;
p_cont_elem->transfer_syntaxes = malloc(sizeof(p_syntax_id_t));
CopyMemory(&(p_cont_elem->transfer_syntaxes[0].if_uuid), &BTFN_UUID, sizeof(p_uuid_t));
p_cont_elem->transfer_syntaxes[0].if_version = BTFN_SYNTAX_IF_VERSION;
offset = 116;
bind_pdu->auth_verifier.auth_pad_length = rpc_offset_align(&offset, 4);
bind_pdu->auth_verifier.auth_type = RPC_C_AUTHN_WINNT;
bind_pdu->auth_verifier.auth_level = RPC_C_AUTHN_LEVEL_PKT_INTEGRITY;
bind_pdu->auth_verifier.auth_reserved = 0x00;
bind_pdu->auth_verifier.auth_context_id = 0x00000000;
offset += (8 + bind_pdu->auth_length);
bind_pdu->frag_length = offset;
buffer = (BYTE*) malloc(bind_pdu->frag_length);
CopyMemory(buffer, bind_pdu, 24);
CopyMemory(&buffer[24], &bind_pdu->p_context_elem, 4);
CopyMemory(&buffer[28], &bind_pdu->p_context_elem.p_cont_elem[0], 24);
CopyMemory(&buffer[52], bind_pdu->p_context_elem.p_cont_elem[0].transfer_syntaxes, 20);
CopyMemory(&buffer[72], &bind_pdu->p_context_elem.p_cont_elem[1], 24);
CopyMemory(&buffer[96], bind_pdu->p_context_elem.p_cont_elem[1].transfer_syntaxes, 20);
offset = 116;
rpc_offset_pad(&offset, bind_pdu->auth_verifier.auth_pad_length);
CopyMemory(&buffer[offset], &bind_pdu->auth_verifier.auth_type, 8);
CopyMemory(&buffer[offset + 8], bind_pdu->auth_verifier.auth_value, bind_pdu->auth_length);
offset += (8 + bind_pdu->auth_length);
rpc_in_write(rpc, buffer, bind_pdu->frag_length);
free(bind_pdu->p_context_elem.p_cont_elem[0].transfer_syntaxes);
free(bind_pdu->p_context_elem.p_cont_elem[1].transfer_syntaxes);
free(bind_pdu->p_context_elem.p_cont_elem);
free(bind_pdu);
free(buffer);
return TRUE;
}
int rpc_recv_bind_ack_pdu(rdpRpc* rpc)
{
int status;
BYTE* auth_data;
RPC_PDU_HEADER* header;
status = rpc_recv_pdu(rpc);
if (status > 0)
{
header = (RPC_PDU_HEADER*) rpc->buffer;
rpc->ntlm->inputBuffer.cbBuffer = header->auth_length;
rpc->ntlm->inputBuffer.pvBuffer = malloc(header->auth_length);
auth_data = rpc->buffer + (header->frag_length - header->auth_length);
CopyMemory(rpc->ntlm->inputBuffer.pvBuffer, auth_data, header->auth_length);
ntlm_authenticate(rpc->ntlm);
}
return status;
}
BOOL rpc_send_rpc_auth_3_pdu(rdpRpc* rpc)
{
BYTE* buffer;
UINT32 offset;
rpcconn_rpc_auth_3_hdr_t* auth_3_pdu;
DEBUG_RPC("Sending auth_3 PDU");
auth_3_pdu = (rpcconn_rpc_auth_3_hdr_t*) malloc(sizeof(rpcconn_rpc_auth_3_hdr_t));
ZeroMemory(auth_3_pdu, sizeof(rpcconn_rpc_auth_3_hdr_t));
rpc_pdu_header_init(rpc, (RPC_PDU_HEADER*) auth_3_pdu);
auth_3_pdu->auth_length = rpc->ntlm->outputBuffer.cbBuffer;
auth_3_pdu->auth_verifier.auth_value = rpc->ntlm->outputBuffer.pvBuffer;
auth_3_pdu->ptype = PTYPE_RPC_AUTH_3;
auth_3_pdu->pfc_flags = PFC_FIRST_FRAG | PFC_LAST_FRAG | PFC_CONC_MPX;
auth_3_pdu->call_id = 2;
offset = 20;
auth_3_pdu->max_xmit_frag = 0x0FF8;
auth_3_pdu->max_recv_frag = 0x0FF8;
offset += 4;
auth_3_pdu->auth_verifier.auth_pad_length = rpc_offset_align(&offset, 4);
auth_3_pdu->auth_verifier.auth_type = RPC_C_AUTHN_WINNT;
auth_3_pdu->auth_verifier.auth_level = RPC_C_AUTHN_LEVEL_PKT_INTEGRITY;
auth_3_pdu->auth_verifier.auth_reserved = 0x00;
auth_3_pdu->auth_verifier.auth_context_id = 0x00000000;
auth_3_pdu->frag_length = 20 + 4 +
auth_3_pdu->auth_verifier.auth_pad_length + auth_3_pdu->auth_length + 8;
buffer = (BYTE*) malloc(auth_3_pdu->frag_length);
CopyMemory(buffer, auth_3_pdu, 24);
offset = 24;
rpc_offset_pad(&offset, auth_3_pdu->auth_verifier.auth_pad_length);
CopyMemory(&buffer[offset], &auth_3_pdu->auth_verifier.auth_type, 8);
CopyMemory(&buffer[offset + 8], auth_3_pdu->auth_verifier.auth_value, auth_3_pdu->auth_length);
offset += (8 + auth_3_pdu->auth_length);
rpc_in_write(rpc, buffer, auth_3_pdu->frag_length);
free(auth_3_pdu);
free(buffer);
return TRUE;
}
int rpc_out_read(rdpRpc* rpc, BYTE* data, int length)
{
int status;
RPC_PDU_HEADER* header;
//if (rpc->VirtualConnection->DefaultOutChannel->ReceiverAvailableWindow < 0x00008FFF) /* Just a simple workaround */
// rts_send_flow_control_ack_pdu(rpc); /* Send FlowControlAck every time AvailableWindow reaches the half */
/* read first 20 bytes to get RPC PDU Header */
status = tls_read(rpc->tls_out, data, 20);
if (status <= 0)
return status;
header = (RPC_PDU_HEADER*) data;
rpc_pdu_header_print(header);
status = tls_read(rpc->tls_out, &data[20], header->frag_length - 20);
if (status < 0)
return status;
if (header->ptype == PTYPE_RTS) /* RTS PDU */
{
printf("rpc_out_read error: Unexpected RTS PDU\n");
return -1;
}
else
{
/* RTS PDUs are not subject to flow control */
rpc->VirtualConnection->DefaultOutChannel->BytesReceived += header->frag_length;
rpc->VirtualConnection->DefaultOutChannel->ReceiverAvailableWindow -= header->frag_length;
}
if (length < header->frag_length)
{
printf("rpc_out_read error! receive buffer is not large enough: %d < %d\n", length, header->frag_length);
return -1;
}
#ifdef WITH_DEBUG_RPC
printf("rpc_out_read(): length: %d\n", header->frag_length);
freerdp_hexdump(data, header->frag_length);
printf("\n");
#endif
return header->frag_length;
}
int rpc_recv_fault_pdu(RPC_PDU_HEADER* header)
{
int index;
rpcconn_fault_hdr_t* fault_pdu;
fault_pdu = (rpcconn_fault_hdr_t*) header;
printf("RPC Fault PDU:\n");
for (index = 0; RPC_FAULT_CODES[index].name != NULL; index++)
{
if (RPC_FAULT_CODES[index].code == fault_pdu->status)
{
printf("status: %s (0x%08X)\n", RPC_FAULT_CODES[index].name, fault_pdu->status);
return 0;
}
}
for (index = 0; RPC_FAULT_CODES[index].name != NULL; index++)
{
if (RPC_TSG_FAULT_CODES[index].code == fault_pdu->status)
{
printf("status: %s (0x%08X)\n", RPC_TSG_FAULT_CODES[index].name, fault_pdu->status);
return 0;
}
}
printf("status: %s (0x%08X)\n", "UNKNOWN", fault_pdu->status);
return 0;
}
BOOL rpc_get_stub_data_info(rdpRpc* rpc, BYTE* header, UINT32* offset, UINT32* length)
{
RPC_PDU_HEADER* pCommonFields;
*offset = RPC_COMMON_FIELDS_LENGTH;
pCommonFields = ((RPC_PDU_HEADER*) header);
if (pCommonFields->ptype == PTYPE_RESPONSE)
{
*offset += 4;
rpc_offset_align(offset, 8);
}
else if (pCommonFields->ptype == PTYPE_REQUEST)
{
*offset += 4;
rpc_offset_align(offset, 8);
}
else
{
return FALSE;
}
if (length)
{
*length = pCommonFields->frag_length - (pCommonFields->auth_length + *offset);
}
return TRUE;
}
int rpc_recv_pdu_header(rdpRpc* rpc, BYTE* header)
{
int status;
int bytesRead;
UINT32 offset;
/* read first 20 bytes to get RPC common fields */
bytesRead = 0;
while (bytesRead < RPC_COMMON_FIELDS_LENGTH)
{
status = tls_read(rpc->tls_out, &header[bytesRead], RPC_COMMON_FIELDS_LENGTH - bytesRead);
if (status < 0)
{
printf("rpc_recv_pdu_header: error reading header\n");
return status;
}
bytesRead += status;
}
rpc_pdu_header_print((RPC_PDU_HEADER*) header);
rpc_get_stub_data_info(rpc, header, &offset, NULL);
while (bytesRead < offset)
{
status = tls_read(rpc->tls_out, &header[bytesRead], offset - bytesRead);
if (status < 0)
return status;
bytesRead += status;
}
return bytesRead;
}
int rpc_recv_pdu(rdpRpc* rpc)
{
int status;
int headerLength;
int bytesRead = 0;
RPC_PDU_HEADER* header;
status = rpc_recv_pdu_header(rpc, rpc->buffer);
if (status < 1)
{
printf("rpc_recv_pdu_header: error reading header\n");
return status;
}
headerLength = status;
header = (RPC_PDU_HEADER*) rpc->buffer;
bytesRead += status;
if (header->frag_length > rpc->length)
{
rpc->length = header->frag_length;
rpc->buffer = (BYTE*) realloc(rpc->buffer, rpc->length);
header = (RPC_PDU_HEADER*) rpc->buffer;
}
while (bytesRead < header->frag_length)
{
status = tls_read(rpc->tls_out, &rpc->buffer[bytesRead], header->frag_length - bytesRead);
if (status < 0)
{
printf("rpc_recv_pdu: error reading fragment\n");
return status;
}
bytesRead += status;
}
if (!(header->pfc_flags & PFC_LAST_FRAG))
{
printf("Fragmented PDU\n");
}
if (header->ptype == PTYPE_RTS) /* RTS PDU */
{
printf("rpc_recv_pdu error: Unexpected RTS PDU\n");
return -1;
}
else if (header->ptype == PTYPE_FAULT)
{
rpc_recv_fault_pdu(header);
return -1;
}
else
{
/* RTS PDUs are not subject to flow control */
rpc->VirtualConnection->DefaultOutChannel->BytesReceived += header->frag_length;
rpc->VirtualConnection->DefaultOutChannel->ReceiverAvailableWindow -= header->frag_length;
}
#ifdef WITH_DEBUG_RPC
printf("rpc_recv_pdu: length: %d\n", header->frag_length);
freerdp_hexdump(rpc->buffer, header->frag_length);
printf("\n");
#endif
return header->frag_length;
}
int rpc_tsg_write(rdpRpc* rpc, BYTE* data, int length, UINT16 opnum)
{
int status;
BYTE* buffer;
UINT32 offset;
rdpNtlm* ntlm;
UINT32 stub_data_pad;
SecBuffer Buffers[2];
SecBufferDesc Message;
SECURITY_STATUS encrypt_status;
rpcconn_request_hdr_t* request_pdu;
ntlm = rpc->ntlm;
if (ntlm->table->QueryContextAttributes(&ntlm->context, SECPKG_ATTR_SIZES, &ntlm->ContextSizes) != SEC_E_OK)
{
printf("QueryContextAttributes SECPKG_ATTR_SIZES failure\n");
return -1;
}
request_pdu = (rpcconn_request_hdr_t*) malloc(sizeof(rpcconn_request_hdr_t));
ZeroMemory(request_pdu, sizeof(rpcconn_request_hdr_t));
rpc_pdu_header_init(rpc, (RPC_PDU_HEADER*) request_pdu);
request_pdu->ptype = PTYPE_REQUEST;
request_pdu->pfc_flags = PFC_FIRST_FRAG | PFC_LAST_FRAG;
request_pdu->auth_length = ntlm->ContextSizes.cbMaxSignature;
request_pdu->call_id = ++rpc->call_id;
/* opnum 8 is TsProxySetupReceivePipe, save call_id for checking pipe responses */
if (opnum == 8)
rpc->pipe_call_id = rpc->call_id;
request_pdu->alloc_hint = length;
request_pdu->p_cont_id = 0x0000;
request_pdu->opnum = opnum;
request_pdu->stub_data = data;
offset = 24;
stub_data_pad = 0;
stub_data_pad = rpc_offset_align(&offset, 8);
printf("stub_data_pad: %d\n", stub_data_pad);
offset += length;
request_pdu->auth_verifier.auth_pad_length = rpc_offset_align(&offset, 4);
printf("auth_pad_length: %d\n", request_pdu->auth_verifier.auth_pad_length);
request_pdu->auth_verifier.auth_type = RPC_C_AUTHN_WINNT;
request_pdu->auth_verifier.auth_level = RPC_C_AUTHN_LEVEL_PKT_INTEGRITY;
request_pdu->auth_verifier.auth_reserved = 0x00;
request_pdu->auth_verifier.auth_context_id = 0x00000000;
offset += (8 + request_pdu->auth_length);
request_pdu->frag_length = offset;
buffer = (BYTE*) malloc(request_pdu->frag_length);
CopyMemory(buffer, request_pdu, 24);
offset = 24;
rpc_offset_pad(&offset, stub_data_pad);
CopyMemory(&buffer[offset], request_pdu->stub_data, length);
offset += length;
rpc_offset_pad(&offset, request_pdu->auth_verifier.auth_pad_length);
CopyMemory(&buffer[offset], &request_pdu->auth_verifier.auth_type, 8);
offset += 8;
Buffers[0].BufferType = SECBUFFER_DATA; /* auth_data */
Buffers[1].BufferType = SECBUFFER_TOKEN; /* signature */
Buffers[0].pvBuffer = buffer;
Buffers[0].cbBuffer = offset;
Buffers[1].cbBuffer = ntlm->ContextSizes.cbMaxSignature;
Buffers[1].pvBuffer = malloc(Buffers[1].cbBuffer);
ZeroMemory(Buffers[1].pvBuffer, Buffers[1].cbBuffer);
Message.cBuffers = 2;
Message.ulVersion = SECBUFFER_VERSION;
Message.pBuffers = (PSecBuffer) &Buffers;
encrypt_status = ntlm->table->EncryptMessage(&ntlm->context, 0, &Message, rpc->send_seq_num++);
if (encrypt_status != SEC_E_OK)
{
printf("EncryptMessage status: 0x%08X\n", encrypt_status);
return -1;
}
CopyMemory(&buffer[offset], Buffers[1].pvBuffer, Buffers[1].cbBuffer);
offset += Buffers[1].cbBuffer;
status = rpc_in_write(rpc, buffer, request_pdu->frag_length);
if (status < 0)
{
printf("rpc_tsg_write(): Error! rpc_tsg_write returned negative value.\n");
return -1;
}
free(buffer);
return length;
}
int rpc_read(rdpRpc* rpc, BYTE* data, int length)
{
int status;
RPC_PDU_HEADER header;
status = rpc_out_read(rpc, data, length);
if (status > 0)
{
CopyMemory(&header, data, 20);
status = rpc_out_read(rpc, data, header.frag_length - 20);
}
return status;
}
BOOL rpc_connect(rdpRpc* rpc)
{
rpc->tls_in = rpc->transport->TlsIn;
rpc->tls_out = rpc->transport->TlsOut;
if (!rts_connect(rpc))
{
printf("rts_connect error!\n");
return FALSE;
}
if (!rpc_send_bind_pdu(rpc))
{
printf("rpc_send_bind_pdu error!\n");
return FALSE;
}
if (rpc_recv_bind_ack_pdu(rpc) <= 0)
{
printf("rpc_recv_bind_ack_pdu error!\n");
return FALSE;
}
if (!rpc_send_rpc_auth_3_pdu(rpc))
{
printf("rpc_send_rpc_auth_3 error!\n");
return FALSE;
}
return TRUE;
}
void rpc_client_virtual_connection_init(rdpRpc* rpc, RpcVirtualConnection* virtual_connection)
{
virtual_connection->DefaultInChannel->BytesSent = 0;
virtual_connection->DefaultOutChannel->BytesReceived = 0;
virtual_connection->DefaultOutChannel->ReceiverAvailableWindow = rpc->ReceiveWindow;
virtual_connection->DefaultOutChannel->ReceiveWindow = rpc->ReceiveWindow;
virtual_connection->DefaultOutChannel->ReceiveWindowSize = rpc->ReceiveWindow;
virtual_connection->DefaultInChannel->SenderAvailableWindow = rpc->ReceiveWindow;
virtual_connection->DefaultInChannel->PingOriginator.ConnectionTimeout = 30;
virtual_connection->DefaultInChannel->PingOriginator.KeepAliveInterval = 0;
}
RpcVirtualConnection* rpc_client_virtual_connection_new(rdpRpc* rpc)
{
RpcVirtualConnection* virtual_connection = (RpcVirtualConnection*) malloc(sizeof(RpcVirtualConnection));
if (virtual_connection != NULL)
{
ZeroMemory(virtual_connection, sizeof(RpcVirtualConnection));
virtual_connection->State = VIRTUAL_CONNECTION_STATE_INITIAL;
virtual_connection->DefaultInChannel = (RpcInChannel*) malloc(sizeof(RpcInChannel));
virtual_connection->DefaultOutChannel = (RpcOutChannel*) malloc(sizeof(RpcOutChannel));
ZeroMemory(virtual_connection->DefaultInChannel, sizeof(RpcInChannel));
ZeroMemory(virtual_connection->DefaultOutChannel, sizeof(RpcOutChannel));
rpc_client_virtual_connection_init(rpc, virtual_connection);
}
return virtual_connection;
}
void rpc_client_virtual_connection_free(RpcVirtualConnection* virtual_connection)
{
if (virtual_connection != NULL)
{
free(virtual_connection);
}
}
rdpNtlmHttp* ntlm_http_new()
{
rdpNtlmHttp* ntlm_http;
ntlm_http = (rdpNtlmHttp*) malloc(sizeof(rdpNtlmHttp));
if (ntlm_http != NULL)
{
ZeroMemory(ntlm_http, sizeof(rdpNtlmHttp));
ntlm_http->ntlm = ntlm_new();
ntlm_http->context = http_context_new();
}
return ntlm_http;
}
void rpc_ntlm_http_init_channel(rdpRpc* rpc, rdpNtlmHttp* ntlm_http, TSG_CHANNEL channel)
{
if (channel == TSG_CHANNEL_IN)
http_context_set_method(ntlm_http->context, "RPC_IN_DATA");
else if (channel == TSG_CHANNEL_OUT)
http_context_set_method(ntlm_http->context, "RPC_OUT_DATA");
http_context_set_uri(ntlm_http->context, "/rpc/rpcproxy.dll?localhost:3388");
http_context_set_accept(ntlm_http->context, "application/rpc");
http_context_set_cache_control(ntlm_http->context, "no-cache");
http_context_set_connection(ntlm_http->context, "Keep-Alive");
http_context_set_user_agent(ntlm_http->context, "MSRPC");
http_context_set_host(ntlm_http->context, rpc->settings->GatewayHostname);
if (channel == TSG_CHANNEL_IN)
{
http_context_set_pragma(ntlm_http->context,
"ResourceTypeUuid=44e265dd-7daf-42cd-8560-3cdb6e7a2729");
}
else if (channel == TSG_CHANNEL_OUT)
{
http_context_set_pragma(ntlm_http->context,
"ResourceTypeUuid=44e265dd-7daf-42cd-8560-3cdb6e7a2729" ", "
"SessionId=fbd9c34f-397d-471d-a109-1b08cc554624");
}
}
void ntlm_http_free(rdpNtlmHttp* ntlm_http)
{
if (ntlm_http != NULL)
{
ntlm_free(ntlm_http->ntlm);
http_context_free(ntlm_http->context);
}
}
rdpRpc* rpc_new(rdpTransport* transport)
{
rdpRpc* rpc = (rdpRpc*) malloc(sizeof(rdpRpc));
if (rpc != NULL)
{
ZeroMemory(rpc, sizeof(rdpRpc));
rpc->transport = transport;
rpc->settings = transport->settings;
rpc->send_seq_num = 0;
rpc->ntlm = ntlm_new();
rpc->ntlm_http_in = ntlm_http_new();
rpc->ntlm_http_out = ntlm_http_new();
rpc_ntlm_http_init_channel(rpc, rpc->ntlm_http_in, TSG_CHANNEL_IN);
rpc_ntlm_http_init_channel(rpc, rpc->ntlm_http_out, TSG_CHANNEL_OUT);
rpc->length = 20;
rpc->buffer = (BYTE*) malloc(rpc->length);
rpc->rpc_vers = 5;
rpc->rpc_vers_minor = 0;
/* little-endian data representation */
rpc->packed_drep[0] = 0x10;
rpc->packed_drep[1] = 0x00;
rpc->packed_drep[2] = 0x00;
rpc->packed_drep[3] = 0x00;
rpc->ReceiveWindow = 0x00010000;
rpc->VirtualConnection = rpc_client_virtual_connection_new(rpc);
rpc->call_id = 1;
}
return rpc;
}
void rpc_free(rdpRpc* rpc)
{
if (rpc != NULL)
{
ntlm_http_free(rpc->ntlm_http_in);
ntlm_http_free(rpc->ntlm_http_out);
rpc_client_virtual_connection_free(rpc->VirtualConnection);
free(rpc);
}
}