FreeRDP/winpr/libwinpr/sspi/Negotiate/negotiate.c

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/**
* WinPR: Windows Portable Runtime
* Negotiate Security Package
*
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* Copyright 2011-2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2017 Dorian Ducournau <dorian.ducournau@gmail.com>
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*
* 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 <winpr/crt.h>
#include <winpr/sspi.h>
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#include <winpr/tchar.h>
#include <winpr/assert.h>
#include <winpr/registry.h>
#include <winpr/build-config.h>
#include "negotiate.h"
#include "../sspi.h"
#include "../../log.h"
#define TAG WINPR_TAG("negotiate")
static const char NEGO_REG_KEY[] =
"Software\\" WINPR_VENDOR_STRING "\\" WINPR_PRODUCT_STRING "\\SSPI\\Negotiate";
extern const SecurityFunctionTableA NTLM_SecurityFunctionTableA;
extern const SecurityFunctionTableW NTLM_SecurityFunctionTableW;
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extern const SecurityFunctionTableA KERBEROS_SecurityFunctionTableA;
extern const SecurityFunctionTableW KERBEROS_SecurityFunctionTableW;
#ifdef WITH_GSSAPI
static BOOL ErrorInitContextKerberos = FALSE;
#else
static BOOL ErrorInitContextKerberos = TRUE;
#endif
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const SecPkgInfoA NEGOTIATE_SecPkgInfoA = {
0x00083BB3, /* fCapabilities */
1, /* wVersion */
0x0009, /* wRPCID */
0x00002FE0, /* cbMaxToken */
"Negotiate", /* Name */
"Microsoft Package Negotiator" /* Comment */
};
static WCHAR NEGOTIATE_SecPkgInfoW_Name[] = { 'N', 'e', 'g', 'o', 't', 'i', 'a', 't', 'e', '\0' };
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static WCHAR NEGOTIATE_SecPkgInfoW_Comment[] = { 'M', 'i', 'c', 'r', 'o', 's', 'o', 'f', 't', ' ',
'P', 'a', 'c', 'k', 'a', 'g', 'e', ' ', 'N', 'e',
'g', 'o', 't', 'i', 'a', 't', 'o', 'r', '\0' };
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const SecPkgInfoW NEGOTIATE_SecPkgInfoW = {
0x00083BB3, /* fCapabilities */
1, /* wVersion */
0x0009, /* wRPCID */
0x00002FE0, /* cbMaxToken */
NEGOTIATE_SecPkgInfoW_Name, /* Name */
NEGOTIATE_SecPkgInfoW_Comment /* Comment */
};
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static void negotiate_SetSubPackage(NEGOTIATE_CONTEXT* context, const TCHAR* name)
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{
WINPR_ASSERT(context);
WINPR_ASSERT(name);
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if (_tcsnccmp(name, KERBEROS_SSP_NAME, ARRAYSIZE(KERBEROS_SSP_NAME)) == 0)
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{
context->sspiA = &KERBEROS_SecurityFunctionTableA;
context->sspiW = &KERBEROS_SecurityFunctionTableW;
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context->kerberos = TRUE;
}
else
{
context->sspiA = &NTLM_SecurityFunctionTableA;
context->sspiW = &NTLM_SecurityFunctionTableW;
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context->kerberos = FALSE;
}
}
static NEGOTIATE_CONTEXT* negotiate_ContextNew(void)
{
NEGOTIATE_CONTEXT* context;
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context = (NEGOTIATE_CONTEXT*)calloc(1, sizeof(NEGOTIATE_CONTEXT));
if (!context)
return NULL;
context->NegotiateFlags = 0;
context->state = NEGOTIATE_STATE_INITIAL;
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SecInvalidateHandle(&(context->SubContext));
negotiate_SetSubPackage(context, KERBEROS_SSP_NAME);
return context;
}
static void negotiate_ContextFree(NEGOTIATE_CONTEXT* context)
{
free(context);
}
static BOOL negotaite_get_dword(HKEY hKey, const char* subkey, DWORD* pdwValue)
{
DWORD dwValue = 0, dwType = 0;
DWORD dwSize = sizeof(dwValue);
LONG rc = RegQueryValueExA(hKey, subkey, NULL, &dwType, (BYTE*)&dwValue, &dwSize);
if (rc != ERROR_SUCCESS)
return FALSE;
if (dwType != REG_DWORD)
return FALSE;
*pdwValue = dwValue;
return TRUE;
}
static BOOL negotiate_get_config(BOOL* kerberos, BOOL* ntlm)
{
HKEY hKey = NULL;
LONG rc;
WINPR_ASSERT(kerberos);
WINPR_ASSERT(ntlm);
#if !defined(WITH_GSS_NO_NTLM_FALLBACK)
*ntlm = TRUE;
#else
*ntlm = FALSE;
#endif
*kerberos = TRUE;
rc = RegOpenKeyExA(HKEY_LOCAL_MACHINE, NEGO_REG_KEY, 0, KEY_READ | KEY_WOW64_64KEY, &hKey);
if (rc == ERROR_SUCCESS)
{
DWORD dwValue;
if (negotaite_get_dword(hKey, "kerberos", &dwValue))
*kerberos = (dwValue != 0) ? TRUE : FALSE;
#if !defined(WITH_GSS_NO_NTLM_FALLBACK)
if (negotaite_get_dword(hKey, "ntlm", &dwValue))
*ntlm = (dwValue != 0) ? TRUE : FALSE;
#endif
RegCloseKey(hKey);
}
return TRUE;
}
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static SECURITY_STATUS SEC_ENTRY negotiate_InitializeSecurityContextW(
PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR* pszTargetName, ULONG fContextReq,
ULONG Reserved1, ULONG TargetDataRep, PSecBufferDesc pInput, ULONG Reserved2,
PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsExpiry)
{
BOOL ntlm = TRUE;
BOOL kerberos = TRUE;
SECURITY_STATUS status = SEC_E_INTERNAL_ERROR;
NEGOTIATE_CONTEXT* context = NULL;
if (!negotiate_get_config(&kerberos, &ntlm))
return status;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!context)
{
context = negotiate_ContextNew();
if (!context)
return SEC_E_INTERNAL_ERROR;
sspi_SecureHandleSetLowerPointer(phNewContext, context);
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sspi_SecureHandleSetUpperPointer(phNewContext, (void*)NEGO_SSP_NAME);
}
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/* if Kerberos has previously failed or WITH_GSSAPI is not defined, we use NTLM directly */
if (kerberos && !ErrorInitContextKerberos)
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{
if (!pInput)
{
context->sspiW->DeleteSecurityContext(&(context->SubContext));
SecInvalidateHandle(&context->SubContext);
negotiate_SetSubPackage(context, KERBEROS_SSP_NAME);
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}
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status = context->sspiW->InitializeSecurityContextW(
phCredential, &(context->SubContext), pszTargetName, fContextReq, Reserved1,
TargetDataRep, pInput, Reserved2, &(context->SubContext), pOutput, pfContextAttr,
ptsExpiry);
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#if !defined(WITH_GSS_NO_NTLM_FALLBACK)
if (ntlm && (status == SEC_E_NO_CREDENTIALS))
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{
WLog_WARN(TAG, "No Kerberos credentials. Retry with NTLM");
ErrorInitContextKerberos = TRUE;
context->sspiW->DeleteSecurityContext(&(context->SubContext));
SecInvalidateHandle(&context->SubContext);
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}
#endif
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}
if (ntlm && ErrorInitContextKerberos)
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{
if (!pInput)
{
context->sspiW->DeleteSecurityContext(&(context->SubContext));
SecInvalidateHandle(&context->SubContext);
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negotiate_SetSubPackage(context, NTLM_SSP_NAME);
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}
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status = context->sspiW->InitializeSecurityContextW(
phCredential, &(context->SubContext), pszTargetName, fContextReq, Reserved1,
TargetDataRep, pInput, Reserved2, &(context->SubContext), pOutput, pfContextAttr,
ptsExpiry);
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}
return status;
}
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static SECURITY_STATUS SEC_ENTRY negotiate_InitializeSecurityContextA(
PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR* pszTargetName, ULONG fContextReq,
ULONG Reserved1, ULONG TargetDataRep, PSecBufferDesc pInput, ULONG Reserved2,
PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsExpiry)
{
BOOL ntlm = TRUE;
BOOL kerberos = TRUE;
SECURITY_STATUS status = SEC_E_INTERNAL_ERROR;
NEGOTIATE_CONTEXT* context = NULL;
if (!negotiate_get_config(&kerberos, &ntlm))
return status;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!context)
{
context = negotiate_ContextNew();
if (!context)
return SEC_E_INTERNAL_ERROR;
sspi_SecureHandleSetLowerPointer(phNewContext, context);
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sspi_SecureHandleSetUpperPointer(phNewContext, (void*)NEGO_SSP_NAME);
}
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/* if Kerberos has previously failed or WITH_GSSAPI is not defined, we use NTLM directly */
if (kerberos && !ErrorInitContextKerberos)
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{
if (!pInput)
{
context->sspiA->DeleteSecurityContext(&(context->SubContext));
SecInvalidateHandle(&context->SubContext);
negotiate_SetSubPackage(context, KERBEROS_SSP_NAME);
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}
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status = context->sspiA->InitializeSecurityContextA(
phCredential, &(context->SubContext), pszTargetName, fContextReq, Reserved1,
TargetDataRep, pInput, Reserved2, &(context->SubContext), pOutput, pfContextAttr,
ptsExpiry);
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#if !defined(WITH_GSS_NO_NTLM_FALLBACK)
if (ntlm && (status == SEC_E_NO_CREDENTIALS))
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{
WLog_WARN(TAG, "No Kerberos credentials. Retry with NTLM");
ErrorInitContextKerberos = TRUE;
context->sspiA->DeleteSecurityContext(&(context->SubContext));
SecInvalidateHandle(&context->SubContext);
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}
#endif
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}
if (ntlm && ErrorInitContextKerberos)
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{
if (!pInput)
{
context->sspiA->DeleteSecurityContext(&(context->SubContext));
SecInvalidateHandle(&context->SubContext);
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negotiate_SetSubPackage(context, NTLM_SSP_NAME);
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}
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status = context->sspiA->InitializeSecurityContextA(
phCredential, &(context->SubContext), pszTargetName, fContextReq, Reserved1,
TargetDataRep, pInput, Reserved2, &(context->SubContext), pOutput, pfContextAttr,
ptsExpiry);
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}
return status;
}
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static SECURITY_STATUS SEC_ENTRY negotiate_AcceptSecurityContext(
PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput, ULONG fContextReq,
ULONG TargetDataRep, PCtxtHandle phNewContext, PSecBufferDesc pOutput, PULONG pfContextAttr,
PTimeStamp ptsTimeStamp)
{
SECURITY_STATUS status;
NEGOTIATE_CONTEXT* context;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!context)
{
context = negotiate_ContextNew();
if (!context)
return SEC_E_INTERNAL_ERROR;
sspi_SecureHandleSetLowerPointer(phNewContext, context);
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sspi_SecureHandleSetUpperPointer(phNewContext, (void*)NEGO_SSP_NAME);
}
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negotiate_SetSubPackage(context, NTLM_SSP_NAME); /* server-side Kerberos not yet implemented */
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status = context->sspiA->AcceptSecurityContext(
phCredential, &(context->SubContext), pInput, fContextReq, TargetDataRep,
&(context->SubContext), pOutput, pfContextAttr, ptsTimeStamp);
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if (status != SEC_E_OK)
{
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WLog_WARN(TAG, "AcceptSecurityContext status %s [0x%08" PRIX32 "]",
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GetSecurityStatusString(status), status);
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}
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return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_CompleteAuthToken(PCtxtHandle phContext,
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PSecBufferDesc pToken)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
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if (!context)
return SEC_E_INVALID_HANDLE;
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if (context->sspiW->CompleteAuthToken)
status = context->sspiW->CompleteAuthToken(&(context->SubContext), pToken);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_DeleteSecurityContext(PCtxtHandle phContext)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!context)
return SEC_E_INVALID_HANDLE;
if (context->sspiW->DeleteSecurityContext)
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status = context->sspiW->DeleteSecurityContext(&(context->SubContext));
negotiate_ContextFree(context);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_ImpersonateSecurityContext(PCtxtHandle phContext)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!phContext)
return SEC_E_INVALID_HANDLE;
if (context->sspiW->ImpersonateSecurityContext)
status = context->sspiW->ImpersonateSecurityContext(&(context->SubContext));
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_RevertSecurityContext(PCtxtHandle phContext)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!phContext)
return SEC_E_INVALID_HANDLE;
if (context->sspiW->RevertSecurityContext)
status = context->sspiW->RevertSecurityContext(&(context->SubContext));
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_QueryContextAttributesW(PCtxtHandle phContext,
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ULONG ulAttribute, void* pBuffer)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!phContext)
return SEC_E_INVALID_HANDLE;
if (!pBuffer)
return SEC_E_INSUFFICIENT_MEMORY;
if (context->sspiW->QueryContextAttributesW)
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status =
context->sspiW->QueryContextAttributesW(&(context->SubContext), ulAttribute, pBuffer);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_QueryContextAttributesA(PCtxtHandle phContext,
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ULONG ulAttribute, void* pBuffer)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!phContext)
return SEC_E_INVALID_HANDLE;
if (!pBuffer)
return SEC_E_INSUFFICIENT_MEMORY;
if (context->sspiA->QueryContextAttributesA)
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status =
context->sspiA->QueryContextAttributesA(&(context->SubContext), ulAttribute, pBuffer);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_SetContextAttributesW(PCtxtHandle phContext,
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ULONG ulAttribute, void* pBuffer,
ULONG cbBuffer)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!phContext)
return SEC_E_INVALID_HANDLE;
if (!pBuffer)
return SEC_E_INSUFFICIENT_MEMORY;
if (context->sspiW->SetContextAttributesW)
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status = context->sspiW->SetContextAttributesW(&(context->SubContext), ulAttribute, pBuffer,
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cbBuffer);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_SetContextAttributesA(PCtxtHandle phContext,
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ULONG ulAttribute, void* pBuffer,
ULONG cbBuffer)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_OK;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (!phContext)
return SEC_E_INVALID_HANDLE;
if (!pBuffer)
return SEC_E_INSUFFICIENT_MEMORY;
if (context->sspiA->SetContextAttributesA)
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status = context->sspiA->SetContextAttributesA(&(context->SubContext), ulAttribute, pBuffer,
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cbBuffer);
return status;
}
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static SECURITY_STATUS SEC_ENTRY negotiate_AcquireCredentialsHandleW(
SEC_WCHAR* pszPrincipal, SEC_WCHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
PTimeStamp ptsExpiry)
{
SSPI_CREDENTIALS* credentials;
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if ((fCredentialUse != SECPKG_CRED_OUTBOUND) && (fCredentialUse != SECPKG_CRED_INBOUND) &&
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(fCredentialUse != SECPKG_CRED_BOTH))
{
return SEC_E_INVALID_PARAMETER;
}
credentials = sspi_CredentialsNew();
if (!credentials)
return SEC_E_INTERNAL_ERROR;
credentials->fCredentialUse = fCredentialUse;
credentials->pGetKeyFn = pGetKeyFn;
credentials->pvGetKeyArgument = pvGetKeyArgument;
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if (pAuthData)
{
SEC_WINNT_AUTH_IDENTITY_EXW* identityEx = (SEC_WINNT_AUTH_IDENTITY_EXW*)pAuthData;
BOOL treated = FALSE;
SEC_WINNT_AUTH_IDENTITY srcIdentity;
if (identityEx->Version == SEC_WINNT_AUTH_IDENTITY_VERSION)
{
if (identityEx->Length >= sizeof(*identityEx))
{
srcIdentity.User = (UINT16*)identityEx->User;
srcIdentity.UserLength = identityEx->UserLength;
srcIdentity.Domain = (UINT16*)identityEx->Domain;
srcIdentity.DomainLength = identityEx->DomainLength;
srcIdentity.Password = (UINT16*)identityEx->Password;
srcIdentity.PasswordLength = identityEx->PasswordLength;
srcIdentity.Flags = identityEx->Flags;
if (!sspi_CopyAuthIdentity(&credentials->identity, &srcIdentity))
return SEC_E_INSUFFICIENT_MEMORY;
if (identityEx->Length == sizeof(SEC_WINNT_AUTH_IDENTITY_WINPRA))
{
SEC_WINNT_AUTH_IDENTITY_WINPRW* identityWinpr =
(SEC_WINNT_AUTH_IDENTITY_WINPRW*)pAuthData;
credentials->kerbSettings = identityWinpr->kerberosSettings;
}
treated = TRUE;
}
}
if (!treated)
{
SEC_WINNT_AUTH_IDENTITY* identity = (SEC_WINNT_AUTH_IDENTITY*)pAuthData;
sspi_CopyAuthIdentity(&(credentials->identity), identity);
}
}
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sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
sspi_SecureHandleSetUpperPointer(phCredential, (void*)NEGO_SSP_NAME);
return SEC_E_OK;
}
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static SECURITY_STATUS SEC_ENTRY negotiate_AcquireCredentialsHandleA(
SEC_CHAR* pszPrincipal, SEC_CHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
PTimeStamp ptsExpiry)
{
SSPI_CREDENTIALS* credentials;
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if ((fCredentialUse != SECPKG_CRED_OUTBOUND) && (fCredentialUse != SECPKG_CRED_INBOUND) &&
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(fCredentialUse != SECPKG_CRED_BOTH))
{
return SEC_E_INVALID_PARAMETER;
}
credentials = sspi_CredentialsNew();
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if (!credentials)
return SEC_E_INTERNAL_ERROR;
credentials->fCredentialUse = fCredentialUse;
credentials->pGetKeyFn = pGetKeyFn;
credentials->pvGetKeyArgument = pvGetKeyArgument;
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if (pAuthData)
{
SEC_WINNT_AUTH_IDENTITY_EXA* identityEx = (SEC_WINNT_AUTH_IDENTITY_EXA*)pAuthData;
BOOL treated = FALSE;
SEC_WINNT_AUTH_IDENTITY srcIdentity;
if (identityEx->Version == SEC_WINNT_AUTH_IDENTITY_VERSION)
{
if (identityEx->Length >= sizeof(*identityEx))
{
srcIdentity.User = (UINT16*)identityEx->User;
srcIdentity.UserLength = identityEx->UserLength;
srcIdentity.Domain = (UINT16*)identityEx->Domain;
srcIdentity.DomainLength = identityEx->DomainLength;
srcIdentity.Password = (UINT16*)identityEx->Password;
srcIdentity.PasswordLength = identityEx->PasswordLength;
srcIdentity.Flags = identityEx->Flags;
if (!sspi_CopyAuthIdentity(&credentials->identity, &srcIdentity))
return SEC_E_INSUFFICIENT_MEMORY;
if (identityEx->Length == sizeof(SEC_WINNT_AUTH_IDENTITY_WINPRA))
{
SEC_WINNT_AUTH_IDENTITY_WINPRA* identityWinpr =
(SEC_WINNT_AUTH_IDENTITY_WINPRA*)pAuthData;
credentials->kerbSettings = identityWinpr->kerberosSettings;
}
treated = TRUE;
}
}
if (!treated)
{
SEC_WINNT_AUTH_IDENTITY* identity = (SEC_WINNT_AUTH_IDENTITY*)pAuthData;
sspi_CopyAuthIdentity(&(credentials->identity), identity);
}
}
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sspi_SecureHandleSetLowerPointer(phCredential, (void*)credentials);
sspi_SecureHandleSetUpperPointer(phCredential, (void*)NEGO_SSP_NAME);
return SEC_E_OK;
}
static SECURITY_STATUS SEC_ENTRY negotiate_QueryCredentialsAttributesW(PCredHandle phCredential,
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ULONG ulAttribute,
void* pBuffer)
{
WLog_ERR(TAG, "[%s]: TODO: Implement", __FUNCTION__);
return SEC_E_UNSUPPORTED_FUNCTION;
}
static SECURITY_STATUS SEC_ENTRY negotiate_QueryCredentialsAttributesA(PCredHandle phCredential,
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ULONG ulAttribute,
void* pBuffer)
{
WLog_ERR(TAG, "[%s]: TODO: Implement", __FUNCTION__);
return SEC_E_UNSUPPORTED_FUNCTION;
}
static SECURITY_STATUS SEC_ENTRY negotiate_FreeCredentialsHandle(PCredHandle phCredential)
{
SSPI_CREDENTIALS* credentials;
if (!phCredential)
return SEC_E_INVALID_HANDLE;
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credentials = (SSPI_CREDENTIALS*)sspi_SecureHandleGetLowerPointer(phCredential);
if (!credentials)
return SEC_E_INVALID_HANDLE;
sspi_CredentialsFree(credentials);
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sspi_SecureHandleInvalidate(phCredential);
return SEC_E_OK;
}
static SECURITY_STATUS SEC_ENTRY negotiate_EncryptMessage(PCtxtHandle phContext, ULONG fQOP,
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PSecBufferDesc pMessage,
ULONG MessageSeqNo)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_UNSUPPORTED_FUNCTION;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (context->sspiW->EncryptMessage)
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status =
context->sspiW->EncryptMessage(&(context->SubContext), fQOP, pMessage, MessageSeqNo);
else
WLog_WARN(TAG, "[%s] SSPI implementation of function is missing", __FUNCTION__);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_DecryptMessage(PCtxtHandle phContext,
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PSecBufferDesc pMessage,
ULONG MessageSeqNo, ULONG* pfQOP)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_UNSUPPORTED_FUNCTION;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (context->sspiW->DecryptMessage)
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status =
context->sspiW->DecryptMessage(&(context->SubContext), pMessage, MessageSeqNo, pfQOP);
else
WLog_WARN(TAG, "[%s] SSPI implementation of function is missing", __FUNCTION__);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
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PSecBufferDesc pMessage,
ULONG MessageSeqNo)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_UNSUPPORTED_FUNCTION;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (context->sspiW->MakeSignature)
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status =
context->sspiW->MakeSignature(&(context->SubContext), fQOP, pMessage, MessageSeqNo);
else
WLog_WARN(TAG, "[%s] SSPI implementation of function is missing", __FUNCTION__);
return status;
}
static SECURITY_STATUS SEC_ENTRY negotiate_VerifySignature(PCtxtHandle phContext,
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PSecBufferDesc pMessage,
ULONG MessageSeqNo, ULONG* pfQOP)
{
NEGOTIATE_CONTEXT* context;
SECURITY_STATUS status = SEC_E_UNSUPPORTED_FUNCTION;
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context = (NEGOTIATE_CONTEXT*)sspi_SecureHandleGetLowerPointer(phContext);
if (context->sspiW->VerifySignature)
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status =
context->sspiW->VerifySignature(&(context->SubContext), pMessage, MessageSeqNo, pfQOP);
else
WLog_WARN(TAG, "[%s] SSPI implementation of function is missing", __FUNCTION__);
return status;
}
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const SecurityFunctionTableA NEGOTIATE_SecurityFunctionTableA = {
1, /* dwVersion */
NULL, /* EnumerateSecurityPackages */
negotiate_QueryCredentialsAttributesA, /* QueryCredentialsAttributes */
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negotiate_AcquireCredentialsHandleA, /* AcquireCredentialsHandle */
negotiate_FreeCredentialsHandle, /* FreeCredentialsHandle */
NULL, /* Reserved2 */
negotiate_InitializeSecurityContextA, /* InitializeSecurityContext */
negotiate_AcceptSecurityContext, /* AcceptSecurityContext */
negotiate_CompleteAuthToken, /* CompleteAuthToken */
negotiate_DeleteSecurityContext, /* DeleteSecurityContext */
NULL, /* ApplyControlToken */
negotiate_QueryContextAttributesA, /* QueryContextAttributes */
negotiate_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
negotiate_RevertSecurityContext, /* RevertSecurityContext */
negotiate_MakeSignature, /* MakeSignature */
negotiate_VerifySignature, /* VerifySignature */
NULL, /* FreeContextBuffer */
NULL, /* QuerySecurityPackageInfo */
NULL, /* Reserved3 */
NULL, /* Reserved4 */
NULL, /* ExportSecurityContext */
NULL, /* ImportSecurityContext */
NULL, /* AddCredentials */
NULL, /* Reserved8 */
NULL, /* QuerySecurityContextToken */
negotiate_EncryptMessage, /* EncryptMessage */
negotiate_DecryptMessage, /* DecryptMessage */
negotiate_SetContextAttributesA, /* SetContextAttributes */
};
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const SecurityFunctionTableW NEGOTIATE_SecurityFunctionTableW = {
1, /* dwVersion */
NULL, /* EnumerateSecurityPackages */
negotiate_QueryCredentialsAttributesW, /* QueryCredentialsAttributes */
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negotiate_AcquireCredentialsHandleW, /* AcquireCredentialsHandle */
negotiate_FreeCredentialsHandle, /* FreeCredentialsHandle */
NULL, /* Reserved2 */
negotiate_InitializeSecurityContextW, /* InitializeSecurityContext */
negotiate_AcceptSecurityContext, /* AcceptSecurityContext */
negotiate_CompleteAuthToken, /* CompleteAuthToken */
negotiate_DeleteSecurityContext, /* DeleteSecurityContext */
NULL, /* ApplyControlToken */
negotiate_QueryContextAttributesW, /* QueryContextAttributes */
negotiate_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
negotiate_RevertSecurityContext, /* RevertSecurityContext */
negotiate_MakeSignature, /* MakeSignature */
negotiate_VerifySignature, /* VerifySignature */
NULL, /* FreeContextBuffer */
NULL, /* QuerySecurityPackageInfo */
NULL, /* Reserved3 */
NULL, /* Reserved4 */
NULL, /* ExportSecurityContext */
NULL, /* ImportSecurityContext */
NULL, /* AddCredentials */
NULL, /* Reserved8 */
NULL, /* QuerySecurityContextToken */
negotiate_EncryptMessage, /* EncryptMessage */
negotiate_DecryptMessage, /* DecryptMessage */
negotiate_SetContextAttributesW, /* SetContextAttributes */
};