Milestone 5: deliver embedded RDP sessions and lifecycle hardening
This commit is contained in:
Keith Smith
475
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel.c
vendored
Normal file
475
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel.c
vendored
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@@ -0,0 +1,475 @@
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/**
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* WinPR: Windows Portable Runtime
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* Schannel Security Package
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*
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* Copyright 2012-2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <winpr/config.h>
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#include <winpr/crt.h>
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#include <winpr/sspi.h>
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#include "schannel.h"
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#include "../sspi.h"
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#include "../../log.h"
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static char* SCHANNEL_PACKAGE_NAME = "Schannel";
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#define TAG WINPR_TAG("sspi.Schannel")
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SCHANNEL_CONTEXT* schannel_ContextNew(void)
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{
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SCHANNEL_CONTEXT* context = nullptr;
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context = (SCHANNEL_CONTEXT*)calloc(1, sizeof(SCHANNEL_CONTEXT));
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if (!context)
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return nullptr;
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context->openssl = schannel_openssl_new();
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if (!context->openssl)
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{
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free(context);
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return nullptr;
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}
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return context;
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}
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void schannel_ContextFree(SCHANNEL_CONTEXT* context)
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{
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if (!context)
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return;
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schannel_openssl_free(context->openssl);
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free(context);
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}
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static SCHANNEL_CREDENTIALS* schannel_CredentialsNew(void)
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{
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SCHANNEL_CREDENTIALS* credentials = nullptr;
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credentials = (SCHANNEL_CREDENTIALS*)calloc(1, sizeof(SCHANNEL_CREDENTIALS));
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return credentials;
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}
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static void schannel_CredentialsFree(SCHANNEL_CREDENTIALS* credentials)
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{
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free(credentials);
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}
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static ALG_ID schannel_SupportedAlgs[] = { CALG_AES_128,
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CALG_AES_256,
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CALG_RC4,
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CALG_DES,
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CALG_3DES,
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CALG_MD5,
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CALG_SHA1,
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CALG_SHA_256,
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CALG_SHA_384,
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CALG_SHA_512,
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CALG_RSA_SIGN,
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CALG_DH_EPHEM,
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(ALG_CLASS_KEY_EXCHANGE | ALG_TYPE_RESERVED7 |
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6), /* what is this? */
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CALG_DSS_SIGN,
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CALG_ECDSA };
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static SECURITY_STATUS SEC_ENTRY schannel_QueryCredentialsAttributesW(
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WINPR_ATTR_UNUSED PCredHandle phCredential, ULONG ulAttribute, void* pBuffer)
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{
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if (ulAttribute == SECPKG_ATTR_SUPPORTED_ALGS)
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{
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PSecPkgCred_SupportedAlgs SupportedAlgs = (PSecPkgCred_SupportedAlgs)pBuffer;
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SupportedAlgs->cSupportedAlgs = sizeof(schannel_SupportedAlgs) / sizeof(ALG_ID);
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SupportedAlgs->palgSupportedAlgs = (ALG_ID*)schannel_SupportedAlgs;
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return SEC_E_OK;
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}
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else if (ulAttribute == SECPKG_ATTR_CIPHER_STRENGTHS)
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{
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PSecPkgCred_CipherStrengths CipherStrengths = (PSecPkgCred_CipherStrengths)pBuffer;
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CipherStrengths->dwMinimumCipherStrength = 40;
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CipherStrengths->dwMaximumCipherStrength = 256;
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return SEC_E_OK;
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}
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else if (ulAttribute == SECPKG_ATTR_SUPPORTED_PROTOCOLS)
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{
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PSecPkgCred_SupportedProtocols SupportedProtocols = (PSecPkgCred_SupportedProtocols)pBuffer;
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/* Observed SupportedProtocols: 0x208A0 */
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SupportedProtocols->grbitProtocol = (SP_PROT_CLIENTS | SP_PROT_SERVERS);
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return SEC_E_OK;
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}
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WLog_ERR(TAG, "TODO: Implement ulAttribute=%08" PRIx32, ulAttribute);
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return SEC_E_UNSUPPORTED_FUNCTION;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_QueryCredentialsAttributesA(PCredHandle phCredential,
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ULONG ulAttribute,
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void* pBuffer)
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{
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return schannel_QueryCredentialsAttributesW(phCredential, ulAttribute, pBuffer);
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}
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static SECURITY_STATUS SEC_ENTRY schannel_AcquireCredentialsHandleW(
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WINPR_ATTR_UNUSED SEC_WCHAR* pszPrincipal, WINPR_ATTR_UNUSED SEC_WCHAR* pszPackage,
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ULONG fCredentialUse, WINPR_ATTR_UNUSED void* pvLogonID, void* pAuthData,
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WINPR_ATTR_UNUSED SEC_GET_KEY_FN pGetKeyFn, WINPR_ATTR_UNUSED void* pvGetKeyArgument,
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PCredHandle phCredential, WINPR_ATTR_UNUSED PTimeStamp ptsExpiry)
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{
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SCHANNEL_CREDENTIALS* credentials = nullptr;
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if (fCredentialUse == SECPKG_CRED_OUTBOUND)
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{
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SCHANNEL_CRED* cred = nullptr;
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credentials = schannel_CredentialsNew();
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credentials->fCredentialUse = fCredentialUse;
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cred = (SCHANNEL_CRED*)pAuthData;
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if (cred)
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{
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CopyMemory(&credentials->cred, cred, sizeof(SCHANNEL_CRED));
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}
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sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
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sspi_SecureHandleSetUpperPointer(phCredential, (void*)SCHANNEL_PACKAGE_NAME);
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return SEC_E_OK;
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}
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else if (fCredentialUse == SECPKG_CRED_INBOUND)
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{
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credentials = schannel_CredentialsNew();
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credentials->fCredentialUse = fCredentialUse;
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sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
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sspi_SecureHandleSetUpperPointer(phCredential, (void*)SCHANNEL_PACKAGE_NAME);
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return SEC_E_OK;
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}
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return SEC_E_OK;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_AcquireCredentialsHandleA(
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SEC_CHAR* pszPrincipal, SEC_CHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
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void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
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PTimeStamp ptsExpiry)
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{
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SECURITY_STATUS status = 0;
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SEC_WCHAR* pszPrincipalW = nullptr;
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SEC_WCHAR* pszPackageW = nullptr;
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if (pszPrincipal)
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pszPrincipalW = ConvertUtf8ToWCharAlloc(pszPrincipal, nullptr);
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if (pszPackage)
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pszPackageW = ConvertUtf8ToWCharAlloc(pszPackage, nullptr);
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status = schannel_AcquireCredentialsHandleW(pszPrincipalW, pszPackageW, fCredentialUse,
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pvLogonID, pAuthData, pGetKeyFn, pvGetKeyArgument,
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phCredential, ptsExpiry);
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free(pszPrincipalW);
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free(pszPackageW);
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return status;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_FreeCredentialsHandle(PCredHandle phCredential)
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{
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SCHANNEL_CREDENTIALS* credentials = nullptr;
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if (!phCredential)
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return SEC_E_INVALID_HANDLE;
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credentials = (SCHANNEL_CREDENTIALS*)sspi_SecureHandleGetLowerPointer(phCredential);
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if (!credentials)
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return SEC_E_INVALID_HANDLE;
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schannel_CredentialsFree(credentials);
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return SEC_E_OK;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_InitializeSecurityContextW(
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PCredHandle phCredential, PCtxtHandle phContext, WINPR_ATTR_UNUSED SEC_WCHAR* pszTargetName,
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WINPR_ATTR_UNUSED ULONG fContextReq, WINPR_ATTR_UNUSED ULONG Reserved1,
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WINPR_ATTR_UNUSED ULONG TargetDataRep, PSecBufferDesc pInput, WINPR_ATTR_UNUSED ULONG Reserved2,
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PCtxtHandle phNewContext, PSecBufferDesc pOutput, WINPR_ATTR_UNUSED PULONG pfContextAttr,
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WINPR_ATTR_UNUSED PTimeStamp ptsExpiry)
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{
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SECURITY_STATUS status = 0;
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SCHANNEL_CONTEXT* context = nullptr;
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SCHANNEL_CREDENTIALS* credentials = nullptr;
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/* behave like windows SSPIs that don't want empty context */
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if (phContext && !phContext->dwLower && !phContext->dwUpper)
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return SEC_E_INVALID_HANDLE;
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context = sspi_SecureHandleGetLowerPointer(phContext);
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if (!context)
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{
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context = schannel_ContextNew();
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if (!context)
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return SEC_E_INSUFFICIENT_MEMORY;
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credentials = (SCHANNEL_CREDENTIALS*)sspi_SecureHandleGetLowerPointer(phCredential);
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context->server = FALSE;
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CopyMemory(&context->cred, &credentials->cred, sizeof(SCHANNEL_CRED));
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sspi_SecureHandleSetLowerPointer(phNewContext, context);
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sspi_SecureHandleSetUpperPointer(phNewContext, (void*)SCHANNEL_PACKAGE_NAME);
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schannel_openssl_client_init(context->openssl);
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}
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status = schannel_openssl_client_process_tokens(context->openssl, pInput, pOutput);
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return status;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_InitializeSecurityContextA(
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PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR* pszTargetName, ULONG fContextReq,
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ULONG Reserved1, ULONG TargetDataRep, PSecBufferDesc pInput, ULONG Reserved2,
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PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsExpiry)
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{
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SECURITY_STATUS status = 0;
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SEC_WCHAR* pszTargetNameW = nullptr;
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if (pszTargetName != nullptr)
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{
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pszTargetNameW = ConvertUtf8ToWCharAlloc(pszTargetName, nullptr);
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if (!pszTargetNameW)
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return SEC_E_INSUFFICIENT_MEMORY;
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}
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status = schannel_InitializeSecurityContextW(
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phCredential, phContext, pszTargetNameW, fContextReq, Reserved1, TargetDataRep, pInput,
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Reserved2, phNewContext, pOutput, pfContextAttr, ptsExpiry);
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free(pszTargetNameW);
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return status;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_AcceptSecurityContext(
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WINPR_ATTR_UNUSED PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
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WINPR_ATTR_UNUSED ULONG fContextReq, WINPR_ATTR_UNUSED ULONG TargetDataRep,
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PCtxtHandle phNewContext, PSecBufferDesc pOutput, WINPR_ATTR_UNUSED PULONG pfContextAttr,
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WINPR_ATTR_UNUSED PTimeStamp ptsTimeStamp)
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{
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SECURITY_STATUS status = 0;
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SCHANNEL_CONTEXT* context = nullptr;
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/* behave like windows SSPIs that don't want empty context */
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if (phContext && !phContext->dwLower && !phContext->dwUpper)
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return SEC_E_INVALID_HANDLE;
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context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
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if (!context)
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{
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context = schannel_ContextNew();
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if (!context)
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return SEC_E_INSUFFICIENT_MEMORY;
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context->server = TRUE;
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sspi_SecureHandleSetLowerPointer(phNewContext, context);
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sspi_SecureHandleSetUpperPointer(phNewContext, (void*)SCHANNEL_PACKAGE_NAME);
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schannel_openssl_server_init(context->openssl);
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}
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status = schannel_openssl_server_process_tokens(context->openssl, pInput, pOutput);
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return status;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_DeleteSecurityContext(PCtxtHandle phContext)
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{
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SCHANNEL_CONTEXT* context = nullptr;
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context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
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if (!context)
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return SEC_E_INVALID_HANDLE;
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schannel_ContextFree(context);
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return SEC_E_OK;
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}
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static SECURITY_STATUS SEC_ENTRY schannel_QueryContextAttributes(PCtxtHandle phContext,
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ULONG ulAttribute, void* pBuffer)
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{
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if (!phContext)
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return SEC_E_INVALID_HANDLE;
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|
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if (!pBuffer)
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return SEC_E_INSUFFICIENT_MEMORY;
|
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if (ulAttribute == SECPKG_ATTR_SIZES)
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{
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SecPkgContext_Sizes* Sizes = (SecPkgContext_Sizes*)pBuffer;
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Sizes->cbMaxToken = 0x6000;
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Sizes->cbMaxSignature = 16;
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Sizes->cbBlockSize = 0;
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Sizes->cbSecurityTrailer = 16;
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return SEC_E_OK;
|
||||
}
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else if (ulAttribute == SECPKG_ATTR_STREAM_SIZES)
|
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{
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||||
SecPkgContext_StreamSizes* StreamSizes = (SecPkgContext_StreamSizes*)pBuffer;
|
||||
StreamSizes->cbHeader = 5;
|
||||
StreamSizes->cbTrailer = 36;
|
||||
StreamSizes->cbMaximumMessage = 0x4000;
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||||
StreamSizes->cBuffers = 4;
|
||||
StreamSizes->cbBlockSize = 16;
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
WLog_ERR(TAG, "TODO: Implement ulAttribute=%08" PRIx32, ulAttribute);
|
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return SEC_E_UNSUPPORTED_FUNCTION;
|
||||
}
|
||||
|
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static SECURITY_STATUS SEC_ENTRY schannel_MakeSignature(WINPR_ATTR_UNUSED PCtxtHandle phContext,
|
||||
WINPR_ATTR_UNUSED ULONG fQOP,
|
||||
WINPR_ATTR_UNUSED PSecBufferDesc pMessage,
|
||||
WINPR_ATTR_UNUSED ULONG MessageSeqNo)
|
||||
{
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
static SECURITY_STATUS SEC_ENTRY schannel_VerifySignature(WINPR_ATTR_UNUSED PCtxtHandle phContext,
|
||||
WINPR_ATTR_UNUSED PSecBufferDesc pMessage,
|
||||
WINPR_ATTR_UNUSED ULONG MessageSeqNo,
|
||||
WINPR_ATTR_UNUSED ULONG* pfQOP)
|
||||
{
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
static SECURITY_STATUS SEC_ENTRY schannel_EncryptMessage(WINPR_ATTR_UNUSED PCtxtHandle phContext,
|
||||
WINPR_ATTR_UNUSED ULONG fQOP,
|
||||
PSecBufferDesc pMessage,
|
||||
WINPR_ATTR_UNUSED ULONG MessageSeqNo)
|
||||
{
|
||||
SECURITY_STATUS status = 0;
|
||||
SCHANNEL_CONTEXT* context = nullptr;
|
||||
context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
|
||||
|
||||
if (!context)
|
||||
return SEC_E_INVALID_HANDLE;
|
||||
|
||||
status = schannel_openssl_encrypt_message(context->openssl, pMessage);
|
||||
return status;
|
||||
}
|
||||
|
||||
static SECURITY_STATUS SEC_ENTRY schannel_DecryptMessage(PCtxtHandle phContext,
|
||||
PSecBufferDesc pMessage,
|
||||
WINPR_ATTR_UNUSED ULONG MessageSeqNo,
|
||||
WINPR_ATTR_UNUSED ULONG* pfQOP)
|
||||
{
|
||||
SECURITY_STATUS status = 0;
|
||||
SCHANNEL_CONTEXT* context = nullptr;
|
||||
context = (SCHANNEL_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
|
||||
|
||||
if (!context)
|
||||
return SEC_E_INVALID_HANDLE;
|
||||
|
||||
status = schannel_openssl_decrypt_message(context->openssl, pMessage);
|
||||
return status;
|
||||
}
|
||||
|
||||
const SecurityFunctionTableA SCHANNEL_SecurityFunctionTableA = {
|
||||
3, /* dwVersion */
|
||||
nullptr, /* EnumerateSecurityPackages */
|
||||
schannel_QueryCredentialsAttributesA, /* QueryCredentialsAttributes */
|
||||
schannel_AcquireCredentialsHandleA, /* AcquireCredentialsHandle */
|
||||
schannel_FreeCredentialsHandle, /* FreeCredentialsHandle */
|
||||
nullptr, /* Reserved2 */
|
||||
schannel_InitializeSecurityContextA, /* InitializeSecurityContext */
|
||||
schannel_AcceptSecurityContext, /* AcceptSecurityContext */
|
||||
nullptr, /* CompleteAuthToken */
|
||||
schannel_DeleteSecurityContext, /* DeleteSecurityContext */
|
||||
nullptr, /* ApplyControlToken */
|
||||
schannel_QueryContextAttributes, /* QueryContextAttributes */
|
||||
nullptr, /* ImpersonateSecurityContext */
|
||||
nullptr, /* RevertSecurityContext */
|
||||
schannel_MakeSignature, /* MakeSignature */
|
||||
schannel_VerifySignature, /* VerifySignature */
|
||||
nullptr, /* FreeContextBuffer */
|
||||
nullptr, /* QuerySecurityPackageInfo */
|
||||
nullptr, /* Reserved3 */
|
||||
nullptr, /* Reserved4 */
|
||||
nullptr, /* ExportSecurityContext */
|
||||
nullptr, /* ImportSecurityContext */
|
||||
nullptr, /* AddCredentials */
|
||||
nullptr, /* Reserved8 */
|
||||
nullptr, /* QuerySecurityContextToken */
|
||||
schannel_EncryptMessage, /* EncryptMessage */
|
||||
schannel_DecryptMessage, /* DecryptMessage */
|
||||
nullptr, /* SetContextAttributes */
|
||||
nullptr, /* SetCredentialsAttributes */
|
||||
};
|
||||
|
||||
const SecurityFunctionTableW SCHANNEL_SecurityFunctionTableW = {
|
||||
3, /* dwVersion */
|
||||
nullptr, /* EnumerateSecurityPackages */
|
||||
schannel_QueryCredentialsAttributesW, /* QueryCredentialsAttributes */
|
||||
schannel_AcquireCredentialsHandleW, /* AcquireCredentialsHandle */
|
||||
schannel_FreeCredentialsHandle, /* FreeCredentialsHandle */
|
||||
nullptr, /* Reserved2 */
|
||||
schannel_InitializeSecurityContextW, /* InitializeSecurityContext */
|
||||
schannel_AcceptSecurityContext, /* AcceptSecurityContext */
|
||||
nullptr, /* CompleteAuthToken */
|
||||
schannel_DeleteSecurityContext, /* DeleteSecurityContext */
|
||||
nullptr, /* ApplyControlToken */
|
||||
schannel_QueryContextAttributes, /* QueryContextAttributes */
|
||||
nullptr, /* ImpersonateSecurityContext */
|
||||
nullptr, /* RevertSecurityContext */
|
||||
schannel_MakeSignature, /* MakeSignature */
|
||||
schannel_VerifySignature, /* VerifySignature */
|
||||
nullptr, /* FreeContextBuffer */
|
||||
nullptr, /* QuerySecurityPackageInfo */
|
||||
nullptr, /* Reserved3 */
|
||||
nullptr, /* Reserved4 */
|
||||
nullptr, /* ExportSecurityContext */
|
||||
nullptr, /* ImportSecurityContext */
|
||||
nullptr, /* AddCredentials */
|
||||
nullptr, /* Reserved8 */
|
||||
nullptr, /* QuerySecurityContextToken */
|
||||
schannel_EncryptMessage, /* EncryptMessage */
|
||||
schannel_DecryptMessage, /* DecryptMessage */
|
||||
nullptr, /* SetContextAttributes */
|
||||
nullptr, /* SetCredentialsAttributes */
|
||||
};
|
||||
|
||||
const SecPkgInfoA SCHANNEL_SecPkgInfoA = {
|
||||
0x000107B3, /* fCapabilities */
|
||||
1, /* wVersion */
|
||||
0x000E, /* wRPCID */
|
||||
SCHANNEL_CB_MAX_TOKEN, /* cbMaxToken */
|
||||
"Schannel", /* Name */
|
||||
"Schannel Security Package" /* Comment */
|
||||
};
|
||||
|
||||
static WCHAR SCHANNEL_SecPkgInfoW_NameBuffer[32] = WINPR_C_ARRAY_INIT;
|
||||
static WCHAR SCHANNEL_SecPkgInfoW_CommentBuffer[32] = WINPR_C_ARRAY_INIT;
|
||||
|
||||
const SecPkgInfoW SCHANNEL_SecPkgInfoW = {
|
||||
0x000107B3, /* fCapabilities */
|
||||
1, /* wVersion */
|
||||
0x000E, /* wRPCID */
|
||||
SCHANNEL_CB_MAX_TOKEN, /* cbMaxToken */
|
||||
SCHANNEL_SecPkgInfoW_NameBuffer, /* Name */
|
||||
SCHANNEL_SecPkgInfoW_CommentBuffer /* Comment */
|
||||
};
|
||||
|
||||
BOOL SCHANNEL_init(void)
|
||||
{
|
||||
InitializeConstWCharFromUtf8(SCHANNEL_SecPkgInfoA.Name, SCHANNEL_SecPkgInfoW_NameBuffer,
|
||||
ARRAYSIZE(SCHANNEL_SecPkgInfoW_NameBuffer));
|
||||
InitializeConstWCharFromUtf8(SCHANNEL_SecPkgInfoA.Comment, SCHANNEL_SecPkgInfoW_CommentBuffer,
|
||||
ARRAYSIZE(SCHANNEL_SecPkgInfoW_CommentBuffer));
|
||||
return TRUE;
|
||||
}
|
||||
53
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel.h
vendored
Normal file
53
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel.h
vendored
Normal file
@@ -0,0 +1,53 @@
|
||||
/**
|
||||
* WinPR: Windows Portable Runtime
|
||||
* Schannel Security Package
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef WINPR_SSPI_SCHANNEL_PRIVATE_H
|
||||
#define WINPR_SSPI_SCHANNEL_PRIVATE_H
|
||||
|
||||
#include <winpr/sspi.h>
|
||||
#include <winpr/schannel.h>
|
||||
|
||||
#include "../sspi.h"
|
||||
|
||||
#include "schannel_openssl.h"
|
||||
|
||||
typedef struct
|
||||
{
|
||||
SCHANNEL_CRED cred;
|
||||
ULONG fCredentialUse;
|
||||
} SCHANNEL_CREDENTIALS;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
BOOL server;
|
||||
SCHANNEL_CRED cred;
|
||||
SCHANNEL_OPENSSL* openssl;
|
||||
} SCHANNEL_CONTEXT;
|
||||
|
||||
SCHANNEL_CONTEXT* schannel_ContextNew(void);
|
||||
void schannel_ContextFree(SCHANNEL_CONTEXT* context);
|
||||
|
||||
extern const SecPkgInfoA SCHANNEL_SecPkgInfoA;
|
||||
extern const SecPkgInfoW SCHANNEL_SecPkgInfoW;
|
||||
extern const SecurityFunctionTableA SCHANNEL_SecurityFunctionTableA;
|
||||
extern const SecurityFunctionTableW SCHANNEL_SecurityFunctionTableW;
|
||||
|
||||
BOOL SCHANNEL_init(void);
|
||||
|
||||
#endif /* WINPR_SSPI_SCHANNEL_PRIVATE_H */
|
||||
657
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel_openssl.c
vendored
Normal file
657
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel_openssl.c
vendored
Normal file
@@ -0,0 +1,657 @@
|
||||
/**
|
||||
* WinPR: Windows Portable Runtime
|
||||
* Schannel Security Package (OpenSSL)
|
||||
*
|
||||
* Copyright 2012-2014 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.
|
||||
*/
|
||||
|
||||
#include <winpr/config.h>
|
||||
|
||||
#include "schannel_openssl.h"
|
||||
|
||||
#ifdef WITH_OPENSSL
|
||||
|
||||
#include <winpr/crt.h>
|
||||
#include <winpr/sspi.h>
|
||||
#include <winpr/ssl.h>
|
||||
#include <winpr/print.h>
|
||||
#include <winpr/crypto.h>
|
||||
|
||||
#include <openssl/ssl.h>
|
||||
#include <openssl/err.h>
|
||||
#include <openssl/bio.h>
|
||||
|
||||
#define LIMIT_INTMAX(a) ((a) > INT32_MAX) ? INT32_MAX : (int)(a)
|
||||
|
||||
struct S_SCHANNEL_OPENSSL
|
||||
{
|
||||
SSL* ssl;
|
||||
SSL_CTX* ctx;
|
||||
BOOL connected;
|
||||
BIO* bioRead;
|
||||
BIO* bioWrite;
|
||||
BYTE* ReadBuffer;
|
||||
BYTE* WriteBuffer;
|
||||
};
|
||||
|
||||
#include "../../log.h"
|
||||
#define TAG WINPR_TAG("sspi.schannel")
|
||||
|
||||
static char* openssl_get_ssl_error_string(int ssl_error)
|
||||
{
|
||||
switch (ssl_error)
|
||||
{
|
||||
case SSL_ERROR_ZERO_RETURN:
|
||||
return "SSL_ERROR_ZERO_RETURN";
|
||||
|
||||
case SSL_ERROR_WANT_READ:
|
||||
return "SSL_ERROR_WANT_READ";
|
||||
|
||||
case SSL_ERROR_WANT_WRITE:
|
||||
return "SSL_ERROR_WANT_WRITE";
|
||||
|
||||
case SSL_ERROR_SYSCALL:
|
||||
return "SSL_ERROR_SYSCALL";
|
||||
|
||||
case SSL_ERROR_SSL:
|
||||
return "SSL_ERROR_SSL";
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return "SSL_ERROR_UNKNOWN";
|
||||
}
|
||||
|
||||
static void schannel_context_cleanup(SCHANNEL_OPENSSL* context)
|
||||
{
|
||||
WINPR_ASSERT(context);
|
||||
|
||||
free(context->ReadBuffer);
|
||||
context->ReadBuffer = nullptr;
|
||||
|
||||
if (context->bioWrite)
|
||||
BIO_free_all(context->bioWrite);
|
||||
context->bioWrite = nullptr;
|
||||
|
||||
if (context->bioRead)
|
||||
BIO_free_all(context->bioRead);
|
||||
context->bioRead = nullptr;
|
||||
|
||||
if (context->ssl)
|
||||
SSL_free(context->ssl);
|
||||
context->ssl = nullptr;
|
||||
|
||||
if (context->ctx)
|
||||
SSL_CTX_free(context->ctx);
|
||||
context->ctx = nullptr;
|
||||
}
|
||||
|
||||
static const SSL_METHOD* get_method(BOOL server)
|
||||
{
|
||||
if (server)
|
||||
{
|
||||
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
|
||||
return SSLv23_server_method();
|
||||
#else
|
||||
return TLS_server_method();
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{
|
||||
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
|
||||
return SSLv23_client_method();
|
||||
#else
|
||||
return TLS_client_method();
|
||||
#endif
|
||||
}
|
||||
}
|
||||
int schannel_openssl_client_init(SCHANNEL_OPENSSL* context)
|
||||
{
|
||||
int status = 0;
|
||||
long options = 0;
|
||||
context->ctx = SSL_CTX_new(get_method(FALSE));
|
||||
|
||||
if (!context->ctx)
|
||||
{
|
||||
WLog_ERR(TAG, "SSL_CTX_new failed");
|
||||
return -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* SSL_OP_NO_COMPRESSION:
|
||||
*
|
||||
* The Microsoft RDP server does not advertise support
|
||||
* for TLS compression, but alternative servers may support it.
|
||||
* This was observed between early versions of the FreeRDP server
|
||||
* and the FreeRDP client, and caused major performance issues,
|
||||
* which is why we're disabling it.
|
||||
*/
|
||||
#ifdef SSL_OP_NO_COMPRESSION
|
||||
options |= SSL_OP_NO_COMPRESSION;
|
||||
#endif
|
||||
/**
|
||||
* SSL_OP_TLS_BLOCK_PADDING_BUG:
|
||||
*
|
||||
* The Microsoft RDP server does *not* support TLS padding.
|
||||
* It absolutely needs to be disabled otherwise it won't work.
|
||||
*/
|
||||
options |= SSL_OP_TLS_BLOCK_PADDING_BUG;
|
||||
/**
|
||||
* SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS:
|
||||
*
|
||||
* Just like TLS padding, the Microsoft RDP server does not
|
||||
* support empty fragments. This needs to be disabled.
|
||||
*/
|
||||
options |= SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
|
||||
SSL_CTX_set_options(context->ctx, WINPR_ASSERTING_INT_CAST(uint64_t, options));
|
||||
context->ssl = SSL_new(context->ctx);
|
||||
|
||||
if (!context->ssl)
|
||||
{
|
||||
WLog_ERR(TAG, "SSL_new failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
context->bioRead = BIO_new(BIO_s_mem());
|
||||
|
||||
if (!context->bioRead)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_new failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
status = BIO_set_write_buf_size(context->bioRead, SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (status != 1)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_set_write_buf_size on bioRead failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
context->bioWrite = BIO_new(BIO_s_mem());
|
||||
|
||||
if (!context->bioWrite)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_new failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
status = BIO_set_write_buf_size(context->bioWrite, SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (status != 1)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_set_write_buf_size on bioWrite failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
status = BIO_make_bio_pair(context->bioRead, context->bioWrite);
|
||||
|
||||
if (status != 1)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_make_bio_pair failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
SSL_set_bio(context->ssl, context->bioRead, context->bioWrite);
|
||||
context->ReadBuffer = (BYTE*)malloc(SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (!context->ReadBuffer)
|
||||
{
|
||||
WLog_ERR(TAG, "Failed to allocate ReadBuffer");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
context->WriteBuffer = (BYTE*)malloc(SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (!context->WriteBuffer)
|
||||
{
|
||||
WLog_ERR(TAG, "Failed to allocate ReadBuffer");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
return 0;
|
||||
fail:
|
||||
schannel_context_cleanup(context);
|
||||
return -1;
|
||||
}
|
||||
|
||||
int schannel_openssl_server_init(SCHANNEL_OPENSSL* context)
|
||||
{
|
||||
int status = 0;
|
||||
unsigned long options = 0;
|
||||
|
||||
context->ctx = SSL_CTX_new(get_method(TRUE));
|
||||
|
||||
if (!context->ctx)
|
||||
{
|
||||
WLog_ERR(TAG, "SSL_CTX_new failed");
|
||||
return -1;
|
||||
}
|
||||
|
||||
/*
|
||||
* SSL_OP_NO_SSLv2:
|
||||
*
|
||||
* We only want SSLv3 and TLSv1, so disable SSLv2.
|
||||
* SSLv3 is used by, eg. Microsoft RDC for Mac OS X.
|
||||
*/
|
||||
options |= SSL_OP_NO_SSLv2;
|
||||
/**
|
||||
* SSL_OP_NO_COMPRESSION:
|
||||
*
|
||||
* The Microsoft RDP server does not advertise support
|
||||
* for TLS compression, but alternative servers may support it.
|
||||
* This was observed between early versions of the FreeRDP server
|
||||
* and the FreeRDP client, and caused major performance issues,
|
||||
* which is why we're disabling it.
|
||||
*/
|
||||
#ifdef SSL_OP_NO_COMPRESSION
|
||||
options |= SSL_OP_NO_COMPRESSION;
|
||||
#endif
|
||||
/**
|
||||
* SSL_OP_TLS_BLOCK_PADDING_BUG:
|
||||
*
|
||||
* The Microsoft RDP server does *not* support TLS padding.
|
||||
* It absolutely needs to be disabled otherwise it won't work.
|
||||
*/
|
||||
options |= SSL_OP_TLS_BLOCK_PADDING_BUG;
|
||||
/**
|
||||
* SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS:
|
||||
*
|
||||
* Just like TLS padding, the Microsoft RDP server does not
|
||||
* support empty fragments. This needs to be disabled.
|
||||
*/
|
||||
options |= SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
|
||||
SSL_CTX_set_options(context->ctx, options);
|
||||
|
||||
#if defined(WITH_DEBUG_SCHANNEL)
|
||||
if (SSL_CTX_use_RSAPrivateKey_file(context->ctx, "/tmp/localhost.key", SSL_FILETYPE_PEM) <= 0)
|
||||
{
|
||||
WLog_ERR(TAG, "SSL_CTX_use_RSAPrivateKey_file failed");
|
||||
goto fail;
|
||||
}
|
||||
#endif
|
||||
|
||||
context->ssl = SSL_new(context->ctx);
|
||||
|
||||
if (!context->ssl)
|
||||
{
|
||||
WLog_ERR(TAG, "SSL_new failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (SSL_use_certificate_file(context->ssl, "/tmp/localhost.crt", SSL_FILETYPE_PEM) <= 0)
|
||||
{
|
||||
WLog_ERR(TAG, "SSL_use_certificate_file failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
context->bioRead = BIO_new(BIO_s_mem());
|
||||
|
||||
if (!context->bioRead)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_new failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
status = BIO_set_write_buf_size(context->bioRead, SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (status != 1)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_set_write_buf_size failed for bioRead");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
context->bioWrite = BIO_new(BIO_s_mem());
|
||||
|
||||
if (!context->bioWrite)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_new failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
status = BIO_set_write_buf_size(context->bioWrite, SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (status != 1)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_set_write_buf_size failed for bioWrite");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
status = BIO_make_bio_pair(context->bioRead, context->bioWrite);
|
||||
|
||||
if (status != 1)
|
||||
{
|
||||
WLog_ERR(TAG, "BIO_make_bio_pair failed");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
SSL_set_bio(context->ssl, context->bioRead, context->bioWrite);
|
||||
context->ReadBuffer = (BYTE*)malloc(SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (!context->ReadBuffer)
|
||||
{
|
||||
WLog_ERR(TAG, "Failed to allocate memory for ReadBuffer");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
context->WriteBuffer = (BYTE*)malloc(SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (!context->WriteBuffer)
|
||||
{
|
||||
WLog_ERR(TAG, "Failed to allocate memory for WriteBuffer");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
return 0;
|
||||
fail:
|
||||
schannel_context_cleanup(context);
|
||||
return -1;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_client_process_tokens(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pInput,
|
||||
PSecBufferDesc pOutput)
|
||||
{
|
||||
int status = 0;
|
||||
int ssl_error = 0;
|
||||
PSecBuffer pBuffer = nullptr;
|
||||
|
||||
if (!context->connected)
|
||||
{
|
||||
if (pInput)
|
||||
{
|
||||
if (pInput->cBuffers < 1)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
pBuffer = sspi_FindSecBuffer(pInput, SECBUFFER_TOKEN);
|
||||
|
||||
if (!pBuffer)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
ERR_clear_error();
|
||||
status =
|
||||
BIO_write(context->bioRead, pBuffer->pvBuffer, LIMIT_INTMAX(pBuffer->cbBuffer));
|
||||
if (status < 0)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
}
|
||||
|
||||
status = SSL_connect(context->ssl);
|
||||
|
||||
if (status < 0)
|
||||
{
|
||||
ssl_error = SSL_get_error(context->ssl, status);
|
||||
WLog_ERR(TAG, "SSL_connect error: %s", openssl_get_ssl_error_string(ssl_error));
|
||||
}
|
||||
|
||||
if (status == 1)
|
||||
context->connected = TRUE;
|
||||
|
||||
ERR_clear_error();
|
||||
status = BIO_read(context->bioWrite, context->ReadBuffer, SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (pOutput->cBuffers < 1)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
pBuffer = sspi_FindSecBuffer(pOutput, SECBUFFER_TOKEN);
|
||||
|
||||
if (!pBuffer)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
if (status > 0)
|
||||
{
|
||||
if (pBuffer->cbBuffer < WINPR_ASSERTING_INT_CAST(uint32_t, status))
|
||||
return SEC_E_INSUFFICIENT_MEMORY;
|
||||
|
||||
CopyMemory(pBuffer->pvBuffer, context->ReadBuffer,
|
||||
WINPR_ASSERTING_INT_CAST(uint32_t, status));
|
||||
pBuffer->cbBuffer = WINPR_ASSERTING_INT_CAST(uint32_t, status);
|
||||
return (context->connected) ? SEC_E_OK : SEC_I_CONTINUE_NEEDED;
|
||||
}
|
||||
else
|
||||
{
|
||||
pBuffer->cbBuffer = 0;
|
||||
return (context->connected) ? SEC_E_OK : SEC_I_CONTINUE_NEEDED;
|
||||
}
|
||||
}
|
||||
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_server_process_tokens(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pInput,
|
||||
PSecBufferDesc pOutput)
|
||||
{
|
||||
int status = 0;
|
||||
int ssl_error = 0;
|
||||
PSecBuffer pBuffer = nullptr;
|
||||
|
||||
if (!context->connected)
|
||||
{
|
||||
if (pInput->cBuffers < 1)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
pBuffer = sspi_FindSecBuffer(pInput, SECBUFFER_TOKEN);
|
||||
|
||||
if (!pBuffer)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
ERR_clear_error();
|
||||
status = BIO_write(context->bioRead, pBuffer->pvBuffer, LIMIT_INTMAX(pBuffer->cbBuffer));
|
||||
if (status >= 0)
|
||||
status = SSL_accept(context->ssl);
|
||||
|
||||
if (status < 0)
|
||||
{
|
||||
ssl_error = SSL_get_error(context->ssl, status);
|
||||
WLog_ERR(TAG, "SSL_accept error: %s", openssl_get_ssl_error_string(ssl_error));
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
}
|
||||
|
||||
if (status == 1)
|
||||
context->connected = TRUE;
|
||||
|
||||
ERR_clear_error();
|
||||
status = BIO_read(context->bioWrite, context->ReadBuffer, SCHANNEL_CB_MAX_TOKEN);
|
||||
if (status < 0)
|
||||
{
|
||||
ssl_error = SSL_get_error(context->ssl, status);
|
||||
WLog_ERR(TAG, "BIO_read: %s", openssl_get_ssl_error_string(ssl_error));
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
}
|
||||
|
||||
if (pOutput->cBuffers < 1)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
pBuffer = sspi_FindSecBuffer(pOutput, SECBUFFER_TOKEN);
|
||||
|
||||
if (!pBuffer)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
if (status > 0)
|
||||
{
|
||||
if (pBuffer->cbBuffer < WINPR_ASSERTING_INT_CAST(uint32_t, status))
|
||||
return SEC_E_INSUFFICIENT_MEMORY;
|
||||
|
||||
CopyMemory(pBuffer->pvBuffer, context->ReadBuffer,
|
||||
WINPR_ASSERTING_INT_CAST(uint32_t, status));
|
||||
pBuffer->cbBuffer = WINPR_ASSERTING_INT_CAST(uint32_t, status);
|
||||
return (context->connected) ? SEC_E_OK : SEC_I_CONTINUE_NEEDED;
|
||||
}
|
||||
else
|
||||
{
|
||||
pBuffer->cbBuffer = 0;
|
||||
return (context->connected) ? SEC_E_OK : SEC_I_CONTINUE_NEEDED;
|
||||
}
|
||||
}
|
||||
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_encrypt_message(SCHANNEL_OPENSSL* context, PSecBufferDesc pMessage)
|
||||
{
|
||||
int status = 0;
|
||||
int ssl_error = 0;
|
||||
PSecBuffer pStreamBodyBuffer = nullptr;
|
||||
PSecBuffer pStreamHeaderBuffer = nullptr;
|
||||
PSecBuffer pStreamTrailerBuffer = nullptr;
|
||||
pStreamHeaderBuffer = sspi_FindSecBuffer(pMessage, SECBUFFER_STREAM_HEADER);
|
||||
pStreamBodyBuffer = sspi_FindSecBuffer(pMessage, SECBUFFER_DATA);
|
||||
pStreamTrailerBuffer = sspi_FindSecBuffer(pMessage, SECBUFFER_STREAM_TRAILER);
|
||||
|
||||
if ((!pStreamHeaderBuffer) || (!pStreamBodyBuffer) || (!pStreamTrailerBuffer))
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
status = SSL_write(context->ssl, pStreamBodyBuffer->pvBuffer,
|
||||
LIMIT_INTMAX(pStreamBodyBuffer->cbBuffer));
|
||||
|
||||
if (status < 0)
|
||||
{
|
||||
ssl_error = SSL_get_error(context->ssl, status);
|
||||
WLog_ERR(TAG, "SSL_write: %s", openssl_get_ssl_error_string(ssl_error));
|
||||
}
|
||||
|
||||
ERR_clear_error();
|
||||
status = BIO_read(context->bioWrite, context->ReadBuffer, SCHANNEL_CB_MAX_TOKEN);
|
||||
|
||||
if (status > 0)
|
||||
{
|
||||
size_t ustatus = (size_t)status;
|
||||
size_t length = 0;
|
||||
size_t offset = 0;
|
||||
|
||||
length =
|
||||
(pStreamHeaderBuffer->cbBuffer > ustatus) ? ustatus : pStreamHeaderBuffer->cbBuffer;
|
||||
CopyMemory(pStreamHeaderBuffer->pvBuffer, &context->ReadBuffer[offset], length);
|
||||
ustatus -= length;
|
||||
offset += length;
|
||||
length = (pStreamBodyBuffer->cbBuffer > ustatus) ? ustatus : pStreamBodyBuffer->cbBuffer;
|
||||
CopyMemory(pStreamBodyBuffer->pvBuffer, &context->ReadBuffer[offset], length);
|
||||
ustatus -= length;
|
||||
offset += length;
|
||||
length =
|
||||
(pStreamTrailerBuffer->cbBuffer > ustatus) ? ustatus : pStreamTrailerBuffer->cbBuffer;
|
||||
CopyMemory(pStreamTrailerBuffer->pvBuffer, &context->ReadBuffer[offset], length);
|
||||
}
|
||||
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_decrypt_message(SCHANNEL_OPENSSL* context, PSecBufferDesc pMessage)
|
||||
{
|
||||
int status = 0;
|
||||
int length = 0;
|
||||
BYTE* buffer = nullptr;
|
||||
int ssl_error = 0;
|
||||
PSecBuffer pBuffer = nullptr;
|
||||
pBuffer = sspi_FindSecBuffer(pMessage, SECBUFFER_DATA);
|
||||
|
||||
if (!pBuffer)
|
||||
return SEC_E_INVALID_TOKEN;
|
||||
|
||||
ERR_clear_error();
|
||||
status = BIO_write(context->bioRead, pBuffer->pvBuffer, LIMIT_INTMAX(pBuffer->cbBuffer));
|
||||
if (status > 0)
|
||||
status = SSL_read(context->ssl, pBuffer->pvBuffer, LIMIT_INTMAX(pBuffer->cbBuffer));
|
||||
|
||||
if (status < 0)
|
||||
{
|
||||
ssl_error = SSL_get_error(context->ssl, status);
|
||||
WLog_ERR(TAG, "SSL_read: %s", openssl_get_ssl_error_string(ssl_error));
|
||||
}
|
||||
|
||||
length = status;
|
||||
buffer = pBuffer->pvBuffer;
|
||||
pMessage->pBuffers[0].BufferType = SECBUFFER_STREAM_HEADER;
|
||||
pMessage->pBuffers[0].cbBuffer = 5;
|
||||
pMessage->pBuffers[1].BufferType = SECBUFFER_DATA;
|
||||
pMessage->pBuffers[1].pvBuffer = buffer;
|
||||
pMessage->pBuffers[1].cbBuffer = WINPR_ASSERTING_INT_CAST(uint32_t, length);
|
||||
pMessage->pBuffers[2].BufferType = SECBUFFER_STREAM_TRAILER;
|
||||
pMessage->pBuffers[2].cbBuffer = 36;
|
||||
pMessage->pBuffers[3].BufferType = SECBUFFER_EMPTY;
|
||||
pMessage->pBuffers[3].cbBuffer = 0;
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SCHANNEL_OPENSSL* schannel_openssl_new(void)
|
||||
{
|
||||
SCHANNEL_OPENSSL* context = nullptr;
|
||||
context = (SCHANNEL_OPENSSL*)calloc(1, sizeof(SCHANNEL_OPENSSL));
|
||||
|
||||
if (context != nullptr)
|
||||
{
|
||||
winpr_InitializeSSL(WINPR_SSL_INIT_DEFAULT);
|
||||
context->connected = FALSE;
|
||||
}
|
||||
|
||||
return context;
|
||||
}
|
||||
|
||||
void schannel_openssl_free(SCHANNEL_OPENSSL* context)
|
||||
{
|
||||
if (context)
|
||||
{
|
||||
free(context->ReadBuffer);
|
||||
free(context->WriteBuffer);
|
||||
free(context);
|
||||
}
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
int schannel_openssl_client_init(SCHANNEL_OPENSSL* context)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int schannel_openssl_server_init(SCHANNEL_OPENSSL* context)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_client_process_tokens(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pInput,
|
||||
PSecBufferDesc pOutput)
|
||||
{
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_server_process_tokens(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pInput,
|
||||
PSecBufferDesc pOutput)
|
||||
{
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_encrypt_message(SCHANNEL_OPENSSL* context, PSecBufferDesc pMessage)
|
||||
{
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SECURITY_STATUS schannel_openssl_decrypt_message(SCHANNEL_OPENSSL* context, PSecBufferDesc pMessage)
|
||||
{
|
||||
return SEC_E_OK;
|
||||
}
|
||||
|
||||
SCHANNEL_OPENSSL* schannel_openssl_new(void)
|
||||
{
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
void schannel_openssl_free(SCHANNEL_OPENSSL* context)
|
||||
{
|
||||
}
|
||||
|
||||
#endif
|
||||
53
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel_openssl.h
vendored
Normal file
53
third_party/FreeRDP/winpr/libwinpr/sspi/Schannel/schannel_openssl.h
vendored
Normal file
@@ -0,0 +1,53 @@
|
||||
/**
|
||||
* WinPR: Windows Portable Runtime
|
||||
* Schannel Security Package (OpenSSL)
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef WINPR_SSPI_SCHANNEL_OPENSSL_H
|
||||
#define WINPR_SSPI_SCHANNEL_OPENSSL_H
|
||||
|
||||
#include <winpr/sspi.h>
|
||||
|
||||
#include "../sspi.h"
|
||||
|
||||
/* OpenSSL includes windows.h */
|
||||
#include <winpr/windows.h>
|
||||
|
||||
typedef struct S_SCHANNEL_OPENSSL SCHANNEL_OPENSSL;
|
||||
|
||||
int schannel_openssl_client_init(SCHANNEL_OPENSSL* context);
|
||||
int schannel_openssl_server_init(SCHANNEL_OPENSSL* context);
|
||||
|
||||
SECURITY_STATUS schannel_openssl_client_process_tokens(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pInput,
|
||||
PSecBufferDesc pOutput);
|
||||
SECURITY_STATUS schannel_openssl_server_process_tokens(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pInput,
|
||||
PSecBufferDesc pOutput);
|
||||
|
||||
SECURITY_STATUS schannel_openssl_encrypt_message(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pMessage);
|
||||
SECURITY_STATUS schannel_openssl_decrypt_message(SCHANNEL_OPENSSL* context,
|
||||
PSecBufferDesc pMessage);
|
||||
|
||||
void schannel_openssl_free(SCHANNEL_OPENSSL* context);
|
||||
|
||||
WINPR_ATTR_MALLOC(schannel_openssl_free, 1)
|
||||
WINPR_ATTR_NODISCARD
|
||||
SCHANNEL_OPENSSL* schannel_openssl_new(void);
|
||||
|
||||
#endif /* WINPR_SSPI_SCHANNEL_OPENSSL_H */
|
||||
Reference in New Issue
Block a user