345 lines
10 KiB
C
345 lines
10 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Negotiate Security Package
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*
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* Copyright 2011-2012 Jiten Pathy
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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 <freerdp/sspi/sspi.h>
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#include <freerdp/utils/memory.h>
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#include "negotiate.h"
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#include "../sspi.h"
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char* NEGOTIATE_PACKAGE_NAME = "Negotiate";
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const SecPkgInfoA NEGOTIATE_SecPkgInfoA =
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{
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0x00083BB3, /* fCapabilities */
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1, /* wVersion */
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0x0009, /* wRPCID */
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0x00002FE0, /* cbMaxToken */
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"Negotiate", /* Name */
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"Microsoft Package Negotiator" /* Comment */
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};
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const SecPkgInfoW NEGOTIATE_SecPkgInfoW =
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{
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0x00083BB3, /* fCapabilities */
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1, /* wVersion */
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0x0009, /* wRPCID */
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0x00002FE0, /* cbMaxToken */
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L"Negotiate", /* Name */
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L"Microsoft Package Negotiator" /* Comment */
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};
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void negotiate_SetContextIdentity(NEGOTIATE_CONTEXT* context, SEC_WINNT_AUTH_IDENTITY* identity)
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{
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size_t size;
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context->identity.Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
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if (identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
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{
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context->identity.User = (uint16*) freerdp_uniconv_out(context->uniconv, (char*) identity->User, &size);
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context->identity.UserLength = (uint32) size;
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if (identity->DomainLength > 0)
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{
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context->identity.Domain = (uint16*) freerdp_uniconv_out(context->uniconv, (char*) identity->Domain, &size);
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context->identity.DomainLength = (uint32) size;
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}
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else
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{
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context->identity.Domain = (uint16*) NULL;
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context->identity.DomainLength = 0;
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}
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context->identity.Password = (uint16*) freerdp_uniconv_out(context->uniconv, (char*) identity->Password, &size);
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context->identity.PasswordLength = (uint32) size;
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}
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else
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{
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context->identity.User = (uint16*) xmalloc(identity->UserLength);
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memcpy(context->identity.User, identity->User, identity->UserLength);
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if (identity->DomainLength > 0)
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{
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context->identity.Domain = (uint16*) xmalloc(identity->DomainLength);
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memcpy(context->identity.Domain, identity->Domain, identity->DomainLength);
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}
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else
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{
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context->identity.Domain = (uint16*) NULL;
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context->identity.DomainLength = 0;
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}
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context->identity.Password = (uint16*) xmalloc(identity->PasswordLength);
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memcpy(context->identity.Password, identity->Password, identity->PasswordLength);
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}
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}
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SECURITY_STATUS SEC_ENTRY negotiate_InitializeSecurityContextW(PCredHandle phCredential, PCtxtHandle phContext,
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SEC_WCHAR* pszTargetName, uint32 fContextReq, uint32 Reserved1, uint32 TargetDataRep,
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PSecBufferDesc pInput, uint32 Reserved2, PCtxtHandle phNewContext,
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PSecBufferDesc pOutput, uint32* pfContextAttr, PTimeStamp ptsExpiry)
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{
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return SEC_E_OK;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_InitializeSecurityContextA(PCredHandle phCredential, PCtxtHandle phContext,
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SEC_CHAR* pszTargetName, uint32 fContextReq, uint32 Reserved1, uint32 TargetDataRep,
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PSecBufferDesc pInput, uint32 Reserved2, PCtxtHandle phNewContext,
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PSecBufferDesc pOutput, uint32* pfContextAttr, PTimeStamp ptsExpiry)
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{
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NEGOTIATE_CONTEXT* context;
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//SECURITY_STATUS status;
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CREDENTIALS* credentials;
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//PSecBuffer input_SecBuffer;
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PSecBuffer output_SecBuffer;
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//KrbTGTREQ krb_tgtreq;
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context = sspi_SecureHandleGetLowerPointer(phContext);
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if (!context)
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{
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context = negotiate_ContextNew();
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credentials = (CREDENTIALS*) sspi_SecureHandleGetLowerPointer(phCredential);
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negotiate_SetContextIdentity(context, &credentials->identity);
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sspi_SecureHandleSetLowerPointer(phNewContext, context);
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sspi_SecureHandleSetUpperPointer(phNewContext, (void*) NEGOTIATE_PACKAGE_NAME);
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}
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if((!pInput) && (context->state == NEGOTIATE_STATE_INITIAL))
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{
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if (!pOutput)
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return SEC_E_INVALID_TOKEN;
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if (pOutput->cBuffers < 1)
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return SEC_E_INVALID_TOKEN;
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output_SecBuffer = &pOutput->pBuffers[0];
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if (output_SecBuffer->cbBuffer < 1)
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return SEC_E_INSUFFICIENT_MEMORY;
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}
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return SEC_E_OK;
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}
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NEGOTIATE_CONTEXT* negotiate_ContextNew()
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{
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NEGOTIATE_CONTEXT* context;
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context = xnew(NEGOTIATE_CONTEXT);
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if (context != NULL)
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{
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context->NegotiateFlags = 0;
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context->state = NEGOTIATE_STATE_INITIAL;
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context->uniconv = freerdp_uniconv_new();
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}
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return context;
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}
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void negotiate_ContextFree(NEGOTIATE_CONTEXT* context)
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{
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if (!context)
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return;
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xfree(context);
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}
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SECURITY_STATUS SEC_ENTRY negotiate_QueryContextAttributes(PCtxtHandle phContext, uint32 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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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* ContextSizes = (SecPkgContext_Sizes*) pBuffer;
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ContextSizes->cbMaxToken = 2010;
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ContextSizes->cbMaxSignature = 16;
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ContextSizes->cbBlockSize = 0;
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ContextSizes->cbSecurityTrailer = 16;
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return SEC_E_OK;
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}
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return SEC_E_UNSUPPORTED_FUNCTION;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_AcquireCredentialsHandleW(SEC_WCHAR* pszPrincipal, SEC_WCHAR* pszPackage,
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uint32 fCredentialUse, void* pvLogonID, void* pAuthData, void* pGetKeyFn,
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void* pvGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
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{
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return SEC_E_OK;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_AcquireCredentialsHandleA(SEC_CHAR* pszPrincipal, SEC_CHAR* pszPackage,
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uint32 fCredentialUse, void* pvLogonID, void* pAuthData, void* pGetKeyFn,
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void* pvGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
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{
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CREDENTIALS* credentials;
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SEC_WINNT_AUTH_IDENTITY* identity;
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if (fCredentialUse == SECPKG_CRED_OUTBOUND)
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{
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credentials = sspi_CredentialsNew();
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identity = (SEC_WINNT_AUTH_IDENTITY*) pAuthData;
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memcpy(&(credentials->identity), identity, sizeof(SEC_WINNT_AUTH_IDENTITY));
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sspi_SecureHandleSetLowerPointer(phCredential, (void*) credentials);
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sspi_SecureHandleSetUpperPointer(phCredential, (void*) NEGOTIATE_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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SECURITY_STATUS SEC_ENTRY negotiate_QueryCredentialsAttributesW(PCredHandle phCredential, uint32 ulAttribute, void* pBuffer)
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{
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return SEC_E_OK;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_QueryCredentialsAttributesA(PCredHandle phCredential, uint32 ulAttribute, void* pBuffer)
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{
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if (ulAttribute == SECPKG_CRED_ATTR_NAMES)
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{
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CREDENTIALS* credentials;
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//SecPkgCredentials_Names* credential_names = (SecPkgCredentials_Names*) pBuffer;
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credentials = (CREDENTIALS*) sspi_SecureHandleGetLowerPointer(phCredential);
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//if (credentials->identity.Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
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// credential_names->sUserName = xstrdup((char*) credentials->identity.User);
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return SEC_E_OK;
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}
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return SEC_E_UNSUPPORTED_FUNCTION;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_FreeCredentialsHandle(PCredHandle phCredential)
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{
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CREDENTIALS* credentials;
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if (!phCredential)
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return SEC_E_INVALID_HANDLE;
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credentials = (CREDENTIALS*) sspi_SecureHandleGetLowerPointer(phCredential);
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if (!credentials)
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return SEC_E_INVALID_HANDLE;
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sspi_CredentialsFree(credentials);
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return SEC_E_OK;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_EncryptMessage(PCtxtHandle phContext, uint32 fQOP, PSecBufferDesc pMessage, uint32 MessageSeqNo)
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{
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return SEC_E_OK;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_DecryptMessage(PCtxtHandle phContext, PSecBufferDesc pMessage, uint32 MessageSeqNo, uint32* pfQOP)
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{
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return SEC_E_OK;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_MakeSignature(PCtxtHandle phContext, uint32 fQOP, PSecBufferDesc pMessage, uint32 MessageSeqNo)
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{
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return SEC_E_OK;
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}
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SECURITY_STATUS SEC_ENTRY negotiate_VerifySignature(PCtxtHandle phContext, PSecBufferDesc pMessage, uint32 MessageSeqNo, uint32* pfQOP)
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{
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return SEC_E_OK;
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}
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const SecurityFunctionTableA NEGOTIATE_SecurityFunctionTableA =
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{
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1, /* dwVersion */
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NULL, /* EnumerateSecurityPackages */
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negotiate_QueryCredentialsAttributesA, /* QueryCredentialsAttributes */
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negotiate_AcquireCredentialsHandleA, /* AcquireCredentialsHandle */
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negotiate_FreeCredentialsHandle, /* FreeCredentialsHandle */
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NULL, /* Reserved2 */
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negotiate_InitializeSecurityContextA, /* InitializeSecurityContext */
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NULL, /* AcceptSecurityContext */
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NULL, /* CompleteAuthToken */
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NULL, /* DeleteSecurityContext */
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NULL, /* ApplyControlToken */
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negotiate_QueryContextAttributes, /* QueryContextAttributes */
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NULL, /* ImpersonateSecurityContext */
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NULL, /* RevertSecurityContext */
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negotiate_MakeSignature, /* MakeSignature */
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negotiate_VerifySignature, /* VerifySignature */
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NULL, /* FreeContextBuffer */
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NULL, /* QuerySecurityPackageInfo */
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NULL, /* Reserved3 */
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NULL, /* Reserved4 */
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NULL, /* ExportSecurityContext */
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NULL, /* ImportSecurityContext */
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NULL, /* AddCredentials */
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NULL, /* Reserved8 */
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NULL, /* QuerySecurityContextToken */
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negotiate_EncryptMessage, /* EncryptMessage */
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negotiate_DecryptMessage, /* DecryptMessage */
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NULL, /* SetContextAttributes */
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};
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const SecurityFunctionTableW NEGOTIATE_SecurityFunctionTableW =
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{
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1, /* dwVersion */
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NULL, /* EnumerateSecurityPackages */
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negotiate_QueryCredentialsAttributesW, /* QueryCredentialsAttributes */
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negotiate_AcquireCredentialsHandleW, /* AcquireCredentialsHandle */
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negotiate_FreeCredentialsHandle, /* FreeCredentialsHandle */
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NULL, /* Reserved2 */
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negotiate_InitializeSecurityContextW, /* InitializeSecurityContext */
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NULL, /* AcceptSecurityContext */
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NULL, /* CompleteAuthToken */
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NULL, /* DeleteSecurityContext */
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NULL, /* ApplyControlToken */
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negotiate_QueryContextAttributes, /* QueryContextAttributes */
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NULL, /* ImpersonateSecurityContext */
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NULL, /* RevertSecurityContext */
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negotiate_MakeSignature, /* MakeSignature */
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negotiate_VerifySignature, /* VerifySignature */
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NULL, /* FreeContextBuffer */
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NULL, /* QuerySecurityPackageInfo */
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NULL, /* Reserved3 */
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NULL, /* Reserved4 */
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NULL, /* ExportSecurityContext */
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NULL, /* ImportSecurityContext */
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NULL, /* AddCredentials */
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NULL, /* Reserved8 */
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NULL, /* QuerySecurityContextToken */
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negotiate_EncryptMessage, /* EncryptMessage */
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negotiate_DecryptMessage, /* DecryptMessage */
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NULL, /* SetContextAttributes */
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};
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