/src/FreeRDP/winpr/libwinpr/sspi/sspi_winpr.c

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/**
 * FreeRDP: A Remote Desktop Protocol Implementation
 * Security Support Provider Interface (SSPI)
 *
 * Copyright 2012-2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 * Copyright 2017 Dorian Ducournau <dorian.ducournau@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 <winpr/assert.h>
#include <winpr/windows.h>

#include <winpr/crt.h>
#include <winpr/sspi.h>
#include <winpr/ssl.h>
#include <winpr/print.h>

#include "sspi.h"

#include "sspi_winpr.h"

#include "../log.h"
#define TAG WINPR_TAG("sspi")

/* Authentication Functions: http://msdn.microsoft.com/en-us/library/windows/desktop/aa374731/ */

#include "NTLM/ntlm.h"
#include "NTLM/ntlm_export.h"
#include "CredSSP/credssp.h"
#include "Kerberos/kerberos.h"
#include "Negotiate/negotiate.h"
#include "Schannel/schannel.h"

static const SecPkgInfoA* SecPkgInfoA_LIST[] = { &NTLM_SecPkgInfoA, &KERBEROS_SecPkgInfoA,
                                               &NEGOTIATE_SecPkgInfoA, &CREDSSP_SecPkgInfoA,
                                               &SCHANNEL_SecPkgInfoA };

static const SecPkgInfoW* SecPkgInfoW_LIST[] = { &NTLM_SecPkgInfoW, &KERBEROS_SecPkgInfoW,
                                               &NEGOTIATE_SecPkgInfoW, &CREDSSP_SecPkgInfoW,
                                               &SCHANNEL_SecPkgInfoW };

static SecurityFunctionTableA winpr_SecurityFunctionTableA;
static SecurityFunctionTableW winpr_SecurityFunctionTableW;

typedef struct
{
  const SEC_CHAR* Name;
  const SecurityFunctionTableA* SecurityFunctionTable;
} SecurityFunctionTableA_NAME;

typedef struct
{
  const SEC_WCHAR* Name;
  const SecurityFunctionTableW* SecurityFunctionTable;
} SecurityFunctionTableW_NAME;

static const SecurityFunctionTableA_NAME SecurityFunctionTableA_NAME_LIST[] = {
  { "NTLM", &NTLM_SecurityFunctionTableA },
  { "Kerberos", &KERBEROS_SecurityFunctionTableA },
  { "Negotiate", &NEGOTIATE_SecurityFunctionTableA },
  { "CREDSSP", &CREDSSP_SecurityFunctionTableA },
  { "Schannel", &SCHANNEL_SecurityFunctionTableA }
};

static WCHAR BUFFER_NAME_LIST_W[5][32] = { 0 };

static const SecurityFunctionTableW_NAME SecurityFunctionTableW_NAME_LIST[] = {
  { BUFFER_NAME_LIST_W[0], &NTLM_SecurityFunctionTableW },
  { BUFFER_NAME_LIST_W[1], &KERBEROS_SecurityFunctionTableW },
  { BUFFER_NAME_LIST_W[2], &NEGOTIATE_SecurityFunctionTableW },
  { BUFFER_NAME_LIST_W[3], &CREDSSP_SecurityFunctionTableW },
  { BUFFER_NAME_LIST_W[4], &SCHANNEL_SecurityFunctionTableW }
};

#define SecHandle_LOWER_MAX 0xFFFFFFFF
#define SecHandle_UPPER_MAX 0xFFFFFFFE

typedef struct
{
  void* contextBuffer;
  UINT32 allocatorIndex;
} CONTEXT_BUFFER_ALLOC_ENTRY;

typedef struct
{
  UINT32 cEntries;
  UINT32 cMaxEntries;
  CONTEXT_BUFFER_ALLOC_ENTRY* entries;
} CONTEXT_BUFFER_ALLOC_TABLE;

static CONTEXT_BUFFER_ALLOC_TABLE ContextBufferAllocTable = { 0 };

static int sspi_ContextBufferAllocTableNew(void)
{
  size_t size = 0;
  ContextBufferAllocTable.entries = NULL;
  ContextBufferAllocTable.cEntries = 0;
  ContextBufferAllocTable.cMaxEntries = 4;
  size = sizeof(CONTEXT_BUFFER_ALLOC_ENTRY) * ContextBufferAllocTable.cMaxEntries;
  ContextBufferAllocTable.entries = (CONTEXT_BUFFER_ALLOC_ENTRY*)calloc(1, size);

  if (!ContextBufferAllocTable.entries)
    return -1;

  return 1;
}

static int sspi_ContextBufferAllocTableGrow(void)
{
  size_t size = 0;
  CONTEXT_BUFFER_ALLOC_ENTRY* entries = NULL;
  ContextBufferAllocTable.cEntries = 0;
  ContextBufferAllocTable.cMaxEntries *= 2;
  size = sizeof(CONTEXT_BUFFER_ALLOC_ENTRY) * ContextBufferAllocTable.cMaxEntries;

  if (!size)
    return -1;

  entries = (CONTEXT_BUFFER_ALLOC_ENTRY*)realloc(ContextBufferAllocTable.entries, size);

  if (!entries)
  {
    free(ContextBufferAllocTable.entries);
    return -1;
  }

  ContextBufferAllocTable.entries = entries;
  ZeroMemory((void*)&ContextBufferAllocTable.entries[ContextBufferAllocTable.cMaxEntries / 2],
             size / 2);
  return 1;
}

static void sspi_ContextBufferAllocTableFree(void)
{
  if (ContextBufferAllocTable.cEntries != 0)
    WLog_ERR(TAG, "ContextBufferAllocTable.entries == %" PRIu32,
             ContextBufferAllocTable.cEntries);

  ContextBufferAllocTable.cEntries = ContextBufferAllocTable.cMaxEntries = 0;
  free(ContextBufferAllocTable.entries);
  ContextBufferAllocTable.entries = NULL;
}

static void* sspi_ContextBufferAlloc(UINT32 allocatorIndex, size_t size)
{
  void* contextBuffer = NULL;

  for (UINT32 index = 0; index < ContextBufferAllocTable.cMaxEntries; index++)
  {
    if (!ContextBufferAllocTable.entries[index].contextBuffer)
    {
      contextBuffer = calloc(1, size);

      if (!contextBuffer)
        return NULL;

      ContextBufferAllocTable.cEntries++;
      ContextBufferAllocTable.entries[index].contextBuffer = contextBuffer;
      ContextBufferAllocTable.entries[index].allocatorIndex = allocatorIndex;
      return ContextBufferAllocTable.entries[index].contextBuffer;
    }
  }

  /* no available entry was found, the table needs to be grown */

  if (sspi_ContextBufferAllocTableGrow() < 0)
    return NULL;

  /* the next call to sspi_ContextBufferAlloc() should now succeed */
  return sspi_ContextBufferAlloc(allocatorIndex, size);
}

SSPI_CREDENTIALS* sspi_CredentialsNew(void)
{
  SSPI_CREDENTIALS* credentials = NULL;
  credentials = (SSPI_CREDENTIALS*)calloc(1, sizeof(SSPI_CREDENTIALS));
  return credentials;
}

void sspi_CredentialsFree(SSPI_CREDENTIALS* credentials)
{
  size_t userLength = 0;
  size_t domainLength = 0;
  size_t passwordLength = 0;

  if (!credentials)
    return;

  if (credentials->ntlmSettings.samFile)
    free(credentials->ntlmSettings.samFile);

  userLength = credentials->identity.UserLength;
  domainLength = credentials->identity.DomainLength;
  passwordLength = credentials->identity.PasswordLength;

  if (passwordLength > SSPI_CREDENTIALS_HASH_LENGTH_OFFSET) /* [pth] */
    passwordLength -= SSPI_CREDENTIALS_HASH_LENGTH_OFFSET;

  if (credentials->identity.Flags & SEC_WINNT_AUTH_IDENTITY_UNICODE)
  {
    userLength *= 2;
    domainLength *= 2;
    passwordLength *= 2;
  }

  if (credentials->identity.User)
    memset(credentials->identity.User, 0, userLength);
  if (credentials->identity.Domain)
    memset(credentials->identity.Domain, 0, domainLength);
  if (credentials->identity.Password)
    memset(credentials->identity.Password, 0, passwordLength);
  free(credentials->identity.User);
  free(credentials->identity.Domain);
  free(credentials->identity.Password);
  free(credentials);
}

void* sspi_SecBufferAlloc(PSecBuffer SecBuffer, ULONG size)
{
  if (!SecBuffer)
    return NULL;

  SecBuffer->pvBuffer = calloc(1, size);

  if (!SecBuffer->pvBuffer)
    return NULL;

  SecBuffer->cbBuffer = size;
  return SecBuffer->pvBuffer;
}

void sspi_SecBufferFree(PSecBuffer SecBuffer)
{
  if (!SecBuffer)
    return;

  if (SecBuffer->pvBuffer)
    memset(SecBuffer->pvBuffer, 0, SecBuffer->cbBuffer);

  free(SecBuffer->pvBuffer);
  SecBuffer->pvBuffer = NULL;
  SecBuffer->cbBuffer = 0;
}

SecHandle* sspi_SecureHandleAlloc(void)
{
  SecHandle* handle = (SecHandle*)calloc(1, sizeof(SecHandle));

  if (!handle)
    return NULL;

  SecInvalidateHandle(handle);
  return handle;
}

void* sspi_SecureHandleGetLowerPointer(SecHandle* handle)
{
  void* pointer = NULL;

  if (!handle || !SecIsValidHandle(handle) || !handle->dwLower)
    return NULL;

  pointer = (void*)~((size_t)handle->dwLower);
  return pointer;
}

void sspi_SecureHandleInvalidate(SecHandle* handle)
{
  if (!handle)
    return;

  handle->dwLower = 0;
  handle->dwUpper = 0;
}

void sspi_SecureHandleSetLowerPointer(SecHandle* handle, void* pointer)
{
  if (!handle)
    return;

  handle->dwLower = (ULONG_PTR)(~((size_t)pointer));
}

void* sspi_SecureHandleGetUpperPointer(SecHandle* handle)
{
  void* pointer = NULL;

  if (!handle || !SecIsValidHandle(handle) || !handle->dwUpper)
    return NULL;

  pointer = (void*)~((size_t)handle->dwUpper);
  return pointer;
}

void sspi_SecureHandleSetUpperPointer(SecHandle* handle, void* pointer)
{
  if (!handle)
    return;

  handle->dwUpper = (ULONG_PTR)(~((size_t)pointer));
}

void sspi_SecureHandleFree(SecHandle* handle)
{
  free(handle);
}

int sspi_SetAuthIdentityW(SEC_WINNT_AUTH_IDENTITY* identity, const WCHAR* user, const WCHAR* domain,
                          const WCHAR* password)
{
  return sspi_SetAuthIdentityWithLengthW(identity, user, user ? _wcslen(user) : 0, domain,
                                         domain ? _wcslen(domain) : 0, password,
                                         password ? _wcslen(password) : 0);
}

static BOOL copy(WCHAR** dst, ULONG* dstLen, const WCHAR* what, size_t len)
{
  WINPR_ASSERT(dst);
  WINPR_ASSERT(dstLen);

  *dst = NULL;
  *dstLen = 0;

  *dst = calloc(sizeof(WCHAR), len + 1);
  if (!*dst)
    return FALSE;
  memcpy(*dst, what, len * sizeof(WCHAR));
  *dstLen = len;
  return TRUE;
}

int sspi_SetAuthIdentityWithLengthW(SEC_WINNT_AUTH_IDENTITY* identity, const WCHAR* user,
                                    size_t userLen, const WCHAR* domain, size_t domainLen,
                                    const WCHAR* password, size_t passwordLen)
{
  WINPR_ASSERT(identity);
  sspi_FreeAuthIdentity(identity);
  identity->Flags &= ~SEC_WINNT_AUTH_IDENTITY_ANSI;
  identity->Flags |= SEC_WINNT_AUTH_IDENTITY_UNICODE;

  if (!copy(&identity->User, &identity->UserLength, user, userLen))
    return -1;

  if (!copy(&identity->Domain, &identity->DomainLength, domain, domainLen))
    return -1;

  if (!copy(&identity->Password, &identity->PasswordLength, password, passwordLen))
    return -1;

  return 1;
}

static void zfree(WCHAR* str, size_t len)
{
  if (str)
    memset(str, 0, len * sizeof(WCHAR));
  free(str);
}

int sspi_SetAuthIdentityA(SEC_WINNT_AUTH_IDENTITY* identity, const char* user, const char* domain,
                          const char* password)
{
  int rc = 0;
  size_t unicodeUserLenW = 0;
  size_t unicodeDomainLenW = 0;
  size_t unicodePasswordLenW = 0;
  LPWSTR unicodeUser = ConvertUtf8ToWCharAlloc(user, &unicodeUserLenW);
  LPWSTR unicodeDomain = ConvertUtf8ToWCharAlloc(domain, &unicodeDomainLenW);
  LPWSTR unicodePassword = ConvertUtf8ToWCharAlloc(password, &unicodePasswordLenW);

  rc = sspi_SetAuthIdentityWithLengthW(identity, unicodeUser, unicodeUserLenW, unicodeDomain,
                                       unicodeDomainLenW, unicodePassword, unicodePasswordLenW);

  zfree(unicodeUser, unicodeUserLenW);
  zfree(unicodeDomain, unicodeDomainLenW);
  zfree(unicodePassword, unicodePasswordLenW);
  return rc;
}

UINT32 sspi_GetAuthIdentityVersion(const void* identity)
{
  UINT32 version = 0;

  if (!identity)
    return 0;

  version = *((const UINT32*)identity);

  if ((version == SEC_WINNT_AUTH_IDENTITY_VERSION) ||
      (version == SEC_WINNT_AUTH_IDENTITY_VERSION_2))
  {
    return version;
  }

  return 0; // SEC_WINNT_AUTH_IDENTITY (no version)
}

UINT32 sspi_GetAuthIdentityFlags(const void* identity)
{
  UINT32 version = 0;
  UINT32 flags = 0;

  if (!identity)
    return 0;

  version = sspi_GetAuthIdentityVersion(identity);

  if (version == SEC_WINNT_AUTH_IDENTITY_VERSION)
  {
    flags = ((const SEC_WINNT_AUTH_IDENTITY_EX*)identity)->Flags;
  }
  else if (version == SEC_WINNT_AUTH_IDENTITY_VERSION_2)
  {
    flags = ((const SEC_WINNT_AUTH_IDENTITY_EX2*)identity)->Flags;
  }
  else // SEC_WINNT_AUTH_IDENTITY
  {
    flags = ((const SEC_WINNT_AUTH_IDENTITY*)identity)->Flags;
  }

  return flags;
}

BOOL sspi_GetAuthIdentityUserDomainW(const void* identity, const WCHAR** pUser, UINT32* pUserLength,
                                     const WCHAR** pDomain, UINT32* pDomainLength)
{
  UINT32 version = 0;

  if (!identity)
    return FALSE;

  version = sspi_GetAuthIdentityVersion(identity);

  if (version == SEC_WINNT_AUTH_IDENTITY_VERSION)
  {
    const SEC_WINNT_AUTH_IDENTITY_EXW* id = (const SEC_WINNT_AUTH_IDENTITY_EXW*)identity;
    *pUser = (const WCHAR*)id->User;
    *pUserLength = id->UserLength;
    *pDomain = (const WCHAR*)id->Domain;
    *pDomainLength = id->DomainLength;
  }
  else if (version == SEC_WINNT_AUTH_IDENTITY_VERSION_2)
  {
    const SEC_WINNT_AUTH_IDENTITY_EX2* id = (const SEC_WINNT_AUTH_IDENTITY_EX2*)identity;
    UINT32 UserOffset = id->UserOffset;
    UINT32 DomainOffset = id->DomainOffset;
    *pUser = (const WCHAR*)&((const uint8_t*)identity)[UserOffset];
    *pUserLength = id->UserLength / 2;
    *pDomain = (const WCHAR*)&((const uint8_t*)identity)[DomainOffset];
    *pDomainLength = id->DomainLength / 2;
  }
  else // SEC_WINNT_AUTH_IDENTITY
  {
    const SEC_WINNT_AUTH_IDENTITY_W* id = (const SEC_WINNT_AUTH_IDENTITY_W*)identity;
    *pUser = (const WCHAR*)id->User;
    *pUserLength = id->UserLength;
    *pDomain = (const WCHAR*)id->Domain;
    *pDomainLength = id->DomainLength;
  }

  return TRUE;
}

BOOL sspi_GetAuthIdentityUserDomainA(const void* identity, const char** pUser, UINT32* pUserLength,
                                     const char** pDomain, UINT32* pDomainLength)
{
  UINT32 version = 0;

  if (!identity)
    return FALSE;

  version = sspi_GetAuthIdentityVersion(identity);

  if (version == SEC_WINNT_AUTH_IDENTITY_VERSION)
  {
    const SEC_WINNT_AUTH_IDENTITY_EXA* id = (const SEC_WINNT_AUTH_IDENTITY_EXA*)identity;
    *pUser = (const char*)id->User;
    *pUserLength = id->UserLength;
    *pDomain = (const char*)id->Domain;
    *pDomainLength = id->DomainLength;
  }
  else if (version == SEC_WINNT_AUTH_IDENTITY_VERSION_2)
  {
    const SEC_WINNT_AUTH_IDENTITY_EX2* id = (const SEC_WINNT_AUTH_IDENTITY_EX2*)identity;
    UINT32 UserOffset = id->UserOffset;
    UINT32 DomainOffset = id->DomainOffset;
    *pUser = (const char*)&((const uint8_t*)identity)[UserOffset];
    *pUserLength = id->UserLength;
    *pDomain = (const char*)&((const uint8_t*)identity)[DomainOffset];
    *pDomainLength = id->DomainLength;
  }
  else // SEC_WINNT_AUTH_IDENTITY
  {
    const SEC_WINNT_AUTH_IDENTITY_A* id = (const SEC_WINNT_AUTH_IDENTITY_A*)identity;
    *pUser = (const char*)id->User;
    *pUserLength = id->UserLength;
    *pDomain = (const char*)id->Domain;
    *pDomainLength = id->DomainLength;
  }

  return TRUE;
}

BOOL sspi_GetAuthIdentityPasswordW(const void* identity, const WCHAR** pPassword,
                                   UINT32* pPasswordLength)
{
  UINT32 version = 0;

  if (!identity)
    return FALSE;

  version = sspi_GetAuthIdentityVersion(identity);

  if (version == SEC_WINNT_AUTH_IDENTITY_VERSION)
  {
    const SEC_WINNT_AUTH_IDENTITY_EXW* id = (const SEC_WINNT_AUTH_IDENTITY_EXW*)identity;
    *pPassword = (const WCHAR*)id->Password;
    *pPasswordLength = id->PasswordLength;
  }
  else if (version == SEC_WINNT_AUTH_IDENTITY_VERSION_2)
  {
    return FALSE; // TODO: packed credentials
  }
  else // SEC_WINNT_AUTH_IDENTITY
  {
    const SEC_WINNT_AUTH_IDENTITY_W* id = (const SEC_WINNT_AUTH_IDENTITY_W*)identity;
    *pPassword = (const WCHAR*)id->Password;
    *pPasswordLength = id->PasswordLength;
  }

  return TRUE;
}

BOOL sspi_GetAuthIdentityPasswordA(const void* identity, const char** pPassword,
                                   UINT32* pPasswordLength)
{
  UINT32 version = 0;

  if (!identity)
    return FALSE;

  version = sspi_GetAuthIdentityVersion(identity);

  if (version == SEC_WINNT_AUTH_IDENTITY_VERSION)
  {
    const SEC_WINNT_AUTH_IDENTITY_EXA* id = (const SEC_WINNT_AUTH_IDENTITY_EXA*)identity;
    *pPassword = (const char*)id->Password;
    *pPasswordLength = id->PasswordLength;
  }
  else if (version == SEC_WINNT_AUTH_IDENTITY_VERSION_2)
  {
    return FALSE; // TODO: packed credentials
  }
  else // SEC_WINNT_AUTH_IDENTITY
  {
    const SEC_WINNT_AUTH_IDENTITY_A* id = (const SEC_WINNT_AUTH_IDENTITY_A*)identity;
    *pPassword = (const char*)id->Password;
    *pPasswordLength = id->PasswordLength;
  }

  return TRUE;
}

BOOL sspi_CopyAuthIdentityFieldsA(const SEC_WINNT_AUTH_IDENTITY_INFO* identity, char** pUser,
                                  char** pDomain, char** pPassword)
{
  BOOL success = FALSE;
  const char* UserA = NULL;
  const char* DomainA = NULL;
  const char* PasswordA = NULL;
  const WCHAR* UserW = NULL;
  const WCHAR* DomainW = NULL;
  const WCHAR* PasswordW = NULL;
  UINT32 UserLength = 0;
  UINT32 DomainLength = 0;
  UINT32 PasswordLength = 0;

  if (!identity || !pUser || !pDomain || !pPassword)
    return FALSE;

  *pUser = *pDomain = *pPassword = NULL;

  UINT32 identityFlags = sspi_GetAuthIdentityFlags(identity);

  if (identityFlags & SEC_WINNT_AUTH_IDENTITY_ANSI)
  {
    if (!sspi_GetAuthIdentityUserDomainA(identity, &UserA, &UserLength, &DomainA,
                                         &DomainLength))
      goto cleanup;

    if (!sspi_GetAuthIdentityPasswordA(identity, &PasswordA, &PasswordLength))
      goto cleanup;

    if (UserA && UserLength)
    {
      *pUser = _strdup(UserA);

      if (!(*pUser))
        goto cleanup;
    }

    if (DomainA && DomainLength)
    {
      *pDomain = _strdup(DomainA);

      if (!(*pDomain))
        goto cleanup;
    }

    if (PasswordA && PasswordLength)
    {
      *pPassword = _strdup(PasswordA);

      if (!(*pPassword))
        goto cleanup;
    }

    success = TRUE;
  }
  else
  {
    if (!sspi_GetAuthIdentityUserDomainW(identity, &UserW, &UserLength, &DomainW,
                                         &DomainLength))
      goto cleanup;

    if (!sspi_GetAuthIdentityPasswordW(identity, &PasswordW, &PasswordLength))
      goto cleanup;

    if (UserW && (UserLength > 0))
    {
      *pUser = ConvertWCharNToUtf8Alloc(UserW, UserLength, NULL);
      if (!(*pUser))
        goto cleanup;
    }

    if (DomainW && (DomainLength > 0))
    {
      *pDomain = ConvertWCharNToUtf8Alloc(DomainW, DomainLength, NULL);
      if (!(*pDomain))
        goto cleanup;
    }

    if (PasswordW && (PasswordLength > 0))
    {
      *pPassword = ConvertWCharNToUtf8Alloc(PasswordW, PasswordLength, NULL);
      if (!(*pPassword))
        goto cleanup;
    }

    success = TRUE;
  }

cleanup:
  return success;
}

BOOL sspi_CopyAuthIdentityFieldsW(const SEC_WINNT_AUTH_IDENTITY_INFO* identity, WCHAR** pUser,
                                  WCHAR** pDomain, WCHAR** pPassword)
{
  BOOL success = FALSE;
  const char* UserA = NULL;
  const char* DomainA = NULL;
  const char* PasswordA = NULL;
  const WCHAR* UserW = NULL;
  const WCHAR* DomainW = NULL;
  const WCHAR* PasswordW = NULL;
  UINT32 UserLength = 0;
  UINT32 DomainLength = 0;
  UINT32 PasswordLength = 0;

  if (!identity || !pUser || !pDomain || !pPassword)
    return FALSE;

  *pUser = *pDomain = *pPassword = NULL;

  UINT32 identityFlags = sspi_GetAuthIdentityFlags(identity);

  if (identityFlags & SEC_WINNT_AUTH_IDENTITY_ANSI)
  {
    if (!sspi_GetAuthIdentityUserDomainA(identity, &UserA, &UserLength, &DomainA,
                                         &DomainLength))
      goto cleanup;

    if (!sspi_GetAuthIdentityPasswordA(identity, &PasswordA, &PasswordLength))
      goto cleanup;

    if (UserA && (UserLength > 0))
    {
      WCHAR* ptr = ConvertUtf8NToWCharAlloc(UserA, UserLength, NULL);
      *pUser = ptr;

      if (!ptr)
        goto cleanup;
    }

    if (DomainA && (DomainLength > 0))
    {
      WCHAR* ptr = ConvertUtf8NToWCharAlloc(DomainA, DomainLength, NULL);
      *pDomain = ptr;
      if (!ptr)
        goto cleanup;
    }

    if (PasswordA && (PasswordLength > 0))
    {
      WCHAR* ptr = ConvertUtf8NToWCharAlloc(PasswordA, PasswordLength, NULL);

      *pPassword = ptr;
      if (!ptr)
        goto cleanup;
    }

    success = TRUE;
  }
  else
  {
    if (!sspi_GetAuthIdentityUserDomainW(identity, &UserW, &UserLength, &DomainW,
                                         &DomainLength))
      goto cleanup;

    if (!sspi_GetAuthIdentityPasswordW(identity, &PasswordW, &PasswordLength))
      goto cleanup;

    if (UserW && UserLength)
    {
      *pUser = _wcsdup(UserW);

      if (!(*pUser))
        goto cleanup;
    }

    if (DomainW && DomainLength)
    {
      *pDomain = _wcsdup(DomainW);

      if (!(*pDomain))
        goto cleanup;
    }

    if (PasswordW && PasswordLength)
    {
      *pPassword = _wcsdup(PasswordW);

      if (!(*pPassword))
        goto cleanup;
    }

    success = TRUE;
  }

cleanup:
  return success;
}

BOOL sspi_CopyAuthPackageListA(const SEC_WINNT_AUTH_IDENTITY_INFO* identity, char** pPackageList)
{
  UINT32 version = 0;
  UINT32 identityFlags = 0;
  char* PackageList = NULL;
  const char* PackageListA = NULL;
  const WCHAR* PackageListW = NULL;
  UINT32 PackageListLength = 0;
  UINT32 PackageListOffset = 0;
  const void* pAuthData = (const void*)identity;

  if (!pAuthData)
    return FALSE;

  version = sspi_GetAuthIdentityVersion(pAuthData);
  identityFlags = sspi_GetAuthIdentityFlags(pAuthData);

  if (identityFlags & SEC_WINNT_AUTH_IDENTITY_ANSI)
  {
    if (version == SEC_WINNT_AUTH_IDENTITY_VERSION)
    {
      const SEC_WINNT_AUTH_IDENTITY_EXA* ad = (const SEC_WINNT_AUTH_IDENTITY_EXA*)pAuthData;
      PackageListA = (const char*)ad->PackageList;
      PackageListLength = ad->PackageListLength;
    }

    if (PackageListA && PackageListLength)
    {
      PackageList = _strdup(PackageListA);
    }
  }
  else
  {
    if (version == SEC_WINNT_AUTH_IDENTITY_VERSION)
    {
      const SEC_WINNT_AUTH_IDENTITY_EXW* ad = (const SEC_WINNT_AUTH_IDENTITY_EXW*)pAuthData;
      PackageListW = (const WCHAR*)ad->PackageList;
      PackageListLength = ad->PackageListLength;
    }
    else if (version == SEC_WINNT_AUTH_IDENTITY_VERSION_2)
    {
      const SEC_WINNT_AUTH_IDENTITY_EX2* ad = (const SEC_WINNT_AUTH_IDENTITY_EX2*)pAuthData;
      PackageListOffset = ad->PackageListOffset;
      PackageListW = (const WCHAR*)&((const uint8_t*)pAuthData)[PackageListOffset];
      PackageListLength = ad->PackageListLength / 2;
    }

    if (PackageListW && (PackageListLength > 0))
      PackageList = ConvertWCharNToUtf8Alloc(PackageListW, PackageListLength, NULL);
  }

  if (PackageList)
  {
    *pPackageList = PackageList;
    return TRUE;
  }

  return FALSE;
}

int sspi_CopyAuthIdentity(SEC_WINNT_AUTH_IDENTITY* identity,
                          const SEC_WINNT_AUTH_IDENTITY_INFO* srcIdentity)
{
  int status = 0;
  UINT32 identityFlags = 0;
  const char* UserA = NULL;
  const char* DomainA = NULL;
  const char* PasswordA = NULL;
  const WCHAR* UserW = NULL;
  const WCHAR* DomainW = NULL;
  const WCHAR* PasswordW = NULL;
  UINT32 UserLength = 0;
  UINT32 DomainLength = 0;
  UINT32 PasswordLength = 0;

  sspi_FreeAuthIdentity(identity);

  identityFlags = sspi_GetAuthIdentityFlags(srcIdentity);

  identity->Flags = identityFlags;

  if (identityFlags & SEC_WINNT_AUTH_IDENTITY_ANSI)
  {
    if (!sspi_GetAuthIdentityUserDomainA(srcIdentity, &UserA, &UserLength, &DomainA,
                                         &DomainLength))
    {
      return -1;
    }

    if (!sspi_GetAuthIdentityPasswordA(srcIdentity, &PasswordA, &PasswordLength))
    {
      return -1;
    }

    status = sspi_SetAuthIdentity(identity, UserA, DomainA, PasswordA);

    if (status <= 0)
      return -1;

    identity->Flags &= ~SEC_WINNT_AUTH_IDENTITY_ANSI;
    identity->Flags |= SEC_WINNT_AUTH_IDENTITY_UNICODE;
    return 1;
  }

  identity->Flags |= SEC_WINNT_AUTH_IDENTITY_UNICODE;

  if (!sspi_GetAuthIdentityUserDomainW(srcIdentity, &UserW, &UserLength, &DomainW, &DomainLength))
  {
    return -1;
  }

  if (!sspi_GetAuthIdentityPasswordW(srcIdentity, &PasswordW, &PasswordLength))
  {
    return -1;
  }

  /* login/password authentication */
  identity->UserLength = UserLength;

  if (identity->UserLength > 0)
  {
    identity->User = (UINT16*)calloc((identity->UserLength + 1), sizeof(WCHAR));

    if (!identity->User)
      return -1;

    CopyMemory(identity->User, UserW, identity->UserLength * sizeof(WCHAR));
    identity->User[identity->UserLength] = 0;
  }

  identity->DomainLength = DomainLength;

  if (identity->DomainLength > 0)
  {
    identity->Domain = (UINT16*)calloc((identity->DomainLength + 1), sizeof(WCHAR));

    if (!identity->Domain)
      return -1;

    CopyMemory(identity->Domain, DomainW, identity->DomainLength * sizeof(WCHAR));
    identity->Domain[identity->DomainLength] = 0;
  }

  identity->PasswordLength = PasswordLength;

  if (identity->PasswordLength > SSPI_CREDENTIALS_HASH_LENGTH_OFFSET)
    identity->PasswordLength -= SSPI_CREDENTIALS_HASH_LENGTH_OFFSET;

  if (PasswordW)
  {
    identity->Password = (UINT16*)calloc((identity->PasswordLength + 1), sizeof(WCHAR));

    if (!identity->Password)
      return -1;

    CopyMemory(identity->Password, PasswordW, identity->PasswordLength * sizeof(WCHAR));
    identity->Password[identity->PasswordLength] = 0;
  }

  identity->PasswordLength = PasswordLength;
  /* End of login/password authentication */
  return 1;
}

PSecBuffer sspi_FindSecBuffer(PSecBufferDesc pMessage, ULONG BufferType)
{
  PSecBuffer pSecBuffer = NULL;

  for (UINT32 index = 0; index < pMessage->cBuffers; index++)
  {
    if (pMessage->pBuffers[index].BufferType == BufferType)
    {
      pSecBuffer = &pMessage->pBuffers[index];
      break;
    }
  }

  return pSecBuffer;
}

static BOOL WINPR_init(void)
{

  for (size_t x = 0; x < ARRAYSIZE(SecurityFunctionTableA_NAME_LIST); x++)
  {
    const SecurityFunctionTableA_NAME* const cur = &SecurityFunctionTableA_NAME_LIST[x];
    InitializeConstWCharFromUtf8(cur->Name, BUFFER_NAME_LIST_W[x],
                                 ARRAYSIZE(BUFFER_NAME_LIST_W[x]));
  }
  return TRUE;
}

static BOOL CALLBACK sspi_init(PINIT_ONCE InitOnce, PVOID Parameter, PVOID* Context)
{
  winpr_InitializeSSL(WINPR_SSL_INIT_DEFAULT);
  sspi_ContextBufferAllocTableNew();
  if (!SCHANNEL_init())
    return FALSE;
  if (!KERBEROS_init())
    return FALSE;
  if (!NTLM_init())
    return FALSE;
  if (!CREDSSP_init())
    return FALSE;
  if (!NEGOTIATE_init())
    return FALSE;
  return WINPR_init();
}

void sspi_GlobalInit(void)
{
  static INIT_ONCE once = INIT_ONCE_STATIC_INIT;
  DWORD flags = 0;
  InitOnceExecuteOnce(&once, sspi_init, &flags, NULL);
}

void sspi_GlobalFinish(void)
{
  sspi_ContextBufferAllocTableFree();
}

static const SecurityFunctionTableA* sspi_GetSecurityFunctionTableAByNameA(const SEC_CHAR* Name)
{
  size_t cPackages = sizeof(SecPkgInfoA_LIST) / sizeof(*(SecPkgInfoA_LIST));

  for (size_t index = 0; index < cPackages; index++)
  {
    if (strcmp(Name, SecurityFunctionTableA_NAME_LIST[index].Name) == 0)
    {
      return (const SecurityFunctionTableA*)SecurityFunctionTableA_NAME_LIST[index]
          .SecurityFunctionTable;
    }
  }

  return NULL;
}

static const SecurityFunctionTableW* sspi_GetSecurityFunctionTableWByNameW(const SEC_WCHAR* Name)
{
  size_t cPackages = sizeof(SecPkgInfoW_LIST) / sizeof(*(SecPkgInfoW_LIST));

  for (size_t index = 0; index < cPackages; index++)
  {
    if (_wcscmp(Name, SecurityFunctionTableW_NAME_LIST[index].Name) == 0)
    {
      return (const SecurityFunctionTableW*)SecurityFunctionTableW_NAME_LIST[index]
          .SecurityFunctionTable;
    }
  }

  return NULL;
}

static const SecurityFunctionTableW* sspi_GetSecurityFunctionTableWByNameA(const SEC_CHAR* Name)
{
  SEC_WCHAR* NameW = NULL;
  const SecurityFunctionTableW* table = NULL;

  if (!Name)
    return NULL;

  NameW = ConvertUtf8ToWCharAlloc(Name, NULL);

  if (!NameW)
    return NULL;

  table = sspi_GetSecurityFunctionTableWByNameW(NameW);
  free(NameW);
  return table;
}

static void FreeContextBuffer_EnumerateSecurityPackages(void* contextBuffer);
static void FreeContextBuffer_QuerySecurityPackageInfo(void* contextBuffer);

static void sspi_ContextBufferFree(void* contextBuffer)
{
  UINT32 allocatorIndex = 0;

  for (size_t index = 0; index < ContextBufferAllocTable.cMaxEntries; index++)
  {
    if (contextBuffer == ContextBufferAllocTable.entries[index].contextBuffer)
    {
      contextBuffer = ContextBufferAllocTable.entries[index].contextBuffer;
      allocatorIndex = ContextBufferAllocTable.entries[index].allocatorIndex;
      ContextBufferAllocTable.cEntries--;
      ContextBufferAllocTable.entries[index].allocatorIndex = 0;
      ContextBufferAllocTable.entries[index].contextBuffer = NULL;

      switch (allocatorIndex)
      {
        case EnumerateSecurityPackagesIndex:
          FreeContextBuffer_EnumerateSecurityPackages(contextBuffer);
          break;

        case QuerySecurityPackageInfoIndex:
          FreeContextBuffer_QuerySecurityPackageInfo(contextBuffer);
          break;
      }
    }
  }
}

/**
 * Standard SSPI API
 */

/* Package Management */

static SECURITY_STATUS SEC_ENTRY winpr_EnumerateSecurityPackagesW(ULONG* pcPackages,
                                                                  PSecPkgInfoW* ppPackageInfo)
{
  size_t size = 0;
  UINT32 cPackages = 0;
  SecPkgInfoW* pPackageInfo = NULL;
  cPackages = sizeof(SecPkgInfoW_LIST) / sizeof(*(SecPkgInfoW_LIST));
  size = sizeof(SecPkgInfoW) * cPackages;
  pPackageInfo = (SecPkgInfoW*)sspi_ContextBufferAlloc(EnumerateSecurityPackagesIndex, size);

  if (!pPackageInfo)
    return SEC_E_INSUFFICIENT_MEMORY;

  for (size_t index = 0; index < cPackages; index++)
  {
    pPackageInfo[index].fCapabilities = SecPkgInfoW_LIST[index]->fCapabilities;
    pPackageInfo[index].wVersion = SecPkgInfoW_LIST[index]->wVersion;
    pPackageInfo[index].wRPCID = SecPkgInfoW_LIST[index]->wRPCID;
    pPackageInfo[index].cbMaxToken = SecPkgInfoW_LIST[index]->cbMaxToken;
    pPackageInfo[index].Name = _wcsdup(SecPkgInfoW_LIST[index]->Name);
    pPackageInfo[index].Comment = _wcsdup(SecPkgInfoW_LIST[index]->Comment);
  }

  *(pcPackages) = cPackages;
  *(ppPackageInfo) = pPackageInfo;
  return SEC_E_OK;
}

static SECURITY_STATUS SEC_ENTRY winpr_EnumerateSecurityPackagesA(ULONG* pcPackages,
                                                                  PSecPkgInfoA* ppPackageInfo)
{
  size_t size = 0;
  UINT32 cPackages = 0;
  SecPkgInfoA* pPackageInfo = NULL;
  cPackages = sizeof(SecPkgInfoA_LIST) / sizeof(*(SecPkgInfoA_LIST));
  size = sizeof(SecPkgInfoA) * cPackages;
  pPackageInfo = (SecPkgInfoA*)sspi_ContextBufferAlloc(EnumerateSecurityPackagesIndex, size);

  if (!pPackageInfo)
    return SEC_E_INSUFFICIENT_MEMORY;

  for (size_t index = 0; index < cPackages; index++)
  {
    pPackageInfo[index].fCapabilities = SecPkgInfoA_LIST[index]->fCapabilities;
    pPackageInfo[index].wVersion = SecPkgInfoA_LIST[index]->wVersion;
    pPackageInfo[index].wRPCID = SecPkgInfoA_LIST[index]->wRPCID;
    pPackageInfo[index].cbMaxToken = SecPkgInfoA_LIST[index]->cbMaxToken;
    pPackageInfo[index].Name = _strdup(SecPkgInfoA_LIST[index]->Name);
    pPackageInfo[index].Comment = _strdup(SecPkgInfoA_LIST[index]->Comment);

    if (!pPackageInfo[index].Name || !pPackageInfo[index].Comment)
    {
      sspi_ContextBufferFree(pPackageInfo);
      return SEC_E_INSUFFICIENT_MEMORY;
    }
  }

  *(pcPackages) = cPackages;
  *(ppPackageInfo) = pPackageInfo;
  return SEC_E_OK;
}

static void FreeContextBuffer_EnumerateSecurityPackages(void* contextBuffer)
{
  UINT32 cPackages = 0;
  SecPkgInfoA* pPackageInfo = (SecPkgInfoA*)contextBuffer;
  cPackages = sizeof(SecPkgInfoA_LIST) / sizeof(*(SecPkgInfoA_LIST));

  if (!pPackageInfo)
    return;

  for (size_t index = 0; index < cPackages; index++)
  {
    free(pPackageInfo[index].Name);
    free(pPackageInfo[index].Comment);
  }

  free(pPackageInfo);
}

SecurityFunctionTableW* SEC_ENTRY winpr_InitSecurityInterfaceW(void)
{
  return &winpr_SecurityFunctionTableW;
}

SecurityFunctionTableA* SEC_ENTRY winpr_InitSecurityInterfaceA(void)
{
  return &winpr_SecurityFunctionTableA;
}

static SECURITY_STATUS SEC_ENTRY winpr_QuerySecurityPackageInfoW(SEC_WCHAR* pszPackageName,
                                                                 PSecPkgInfoW* ppPackageInfo)
{
  size_t size = 0;
  SecPkgInfoW* pPackageInfo = NULL;
  size_t cPackages = sizeof(SecPkgInfoW_LIST) / sizeof(*(SecPkgInfoW_LIST));

  for (size_t index = 0; index < cPackages; index++)
  {
    if (_wcscmp(pszPackageName, SecPkgInfoW_LIST[index]->Name) == 0)
    {
      size = sizeof(SecPkgInfoW);
      pPackageInfo =
          (SecPkgInfoW*)sspi_ContextBufferAlloc(QuerySecurityPackageInfoIndex, size);

      if (!pPackageInfo)
        return SEC_E_INSUFFICIENT_MEMORY;

      pPackageInfo->fCapabilities = SecPkgInfoW_LIST[index]->fCapabilities;
      pPackageInfo->wVersion = SecPkgInfoW_LIST[index]->wVersion;
      pPackageInfo->wRPCID = SecPkgInfoW_LIST[index]->wRPCID;
      pPackageInfo->cbMaxToken = SecPkgInfoW_LIST[index]->cbMaxToken;
      pPackageInfo->Name = _wcsdup(SecPkgInfoW_LIST[index]->Name);
      pPackageInfo->Comment = _wcsdup(SecPkgInfoW_LIST[index]->Comment);
      *(ppPackageInfo) = pPackageInfo;
      return SEC_E_OK;
    }
  }

  *(ppPackageInfo) = NULL;
  return SEC_E_SECPKG_NOT_FOUND;
}

static SECURITY_STATUS SEC_ENTRY winpr_QuerySecurityPackageInfoA(SEC_CHAR* pszPackageName,
                                                                 PSecPkgInfoA* ppPackageInfo)
{
  size_t size = 0;
  SecPkgInfoA* pPackageInfo = NULL;
  size_t cPackages = sizeof(SecPkgInfoA_LIST) / sizeof(*(SecPkgInfoA_LIST));

  for (size_t index = 0; index < cPackages; index++)
  {
    if (strcmp(pszPackageName, SecPkgInfoA_LIST[index]->Name) == 0)
    {
      size = sizeof(SecPkgInfoA);
      pPackageInfo =
          (SecPkgInfoA*)sspi_ContextBufferAlloc(QuerySecurityPackageInfoIndex, size);

      if (!pPackageInfo)
        return SEC_E_INSUFFICIENT_MEMORY;

      pPackageInfo->fCapabilities = SecPkgInfoA_LIST[index]->fCapabilities;
      pPackageInfo->wVersion = SecPkgInfoA_LIST[index]->wVersion;
      pPackageInfo->wRPCID = SecPkgInfoA_LIST[index]->wRPCID;
      pPackageInfo->cbMaxToken = SecPkgInfoA_LIST[index]->cbMaxToken;
      pPackageInfo->Name = _strdup(SecPkgInfoA_LIST[index]->Name);
      pPackageInfo->Comment = _strdup(SecPkgInfoA_LIST[index]->Comment);

      if (!pPackageInfo->Name || !pPackageInfo->Comment)
      {
        sspi_ContextBufferFree(pPackageInfo);
        return SEC_E_INSUFFICIENT_MEMORY;
      }

      *(ppPackageInfo) = pPackageInfo;
      return SEC_E_OK;
    }
  }

  *(ppPackageInfo) = NULL;
  return SEC_E_SECPKG_NOT_FOUND;
}

void FreeContextBuffer_QuerySecurityPackageInfo(void* contextBuffer)
{
  SecPkgInfo* pPackageInfo = (SecPkgInfo*)contextBuffer;

  if (!pPackageInfo)
    return;

  free(pPackageInfo->Name);
  free(pPackageInfo->Comment);
  free(pPackageInfo);
}

/* Credential Management */

static SECURITY_STATUS SEC_ENTRY winpr_AcquireCredentialsHandleW(
    SEC_WCHAR* pszPrincipal, SEC_WCHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
    void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
    PTimeStamp ptsExpiry)
{
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = sspi_GetSecurityFunctionTableWByNameW(pszPackage);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->AcquireCredentialsHandleW)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->AcquireCredentialsHandleW(pszPrincipal, pszPackage, fCredentialUse, pvLogonID,
                                            pAuthData, pGetKeyFn, pvGetKeyArgument, phCredential,
                                            ptsExpiry);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "AcquireCredentialsHandleW status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_AcquireCredentialsHandleA(
    SEC_CHAR* pszPrincipal, SEC_CHAR* pszPackage, ULONG fCredentialUse, void* pvLogonID,
    void* pAuthData, SEC_GET_KEY_FN pGetKeyFn, void* pvGetKeyArgument, PCredHandle phCredential,
    PTimeStamp ptsExpiry)
{
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = sspi_GetSecurityFunctionTableAByNameA(pszPackage);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->AcquireCredentialsHandleA)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->AcquireCredentialsHandleA(pszPrincipal, pszPackage, fCredentialUse, pvLogonID,
                                            pAuthData, pGetKeyFn, pvGetKeyArgument, phCredential,
                                            ptsExpiry);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "AcquireCredentialsHandleA status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_ExportSecurityContext(PCtxtHandle phContext, ULONG fFlags,
                                                             PSecBuffer pPackedContext,
                                                             HANDLE* pToken)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->ExportSecurityContext)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->ExportSecurityContext(phContext, fFlags, pPackedContext, pToken);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "ExportSecurityContext status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_FreeCredentialsHandle(PCredHandle phCredential)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->FreeCredentialsHandle)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->FreeCredentialsHandle(phCredential);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "FreeCredentialsHandle status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_ImportSecurityContextW(SEC_WCHAR* pszPackage,
                                                              PSecBuffer pPackedContext,
                                                              HANDLE pToken, PCtxtHandle phContext)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->ImportSecurityContextW)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->ImportSecurityContextW(pszPackage, pPackedContext, pToken, phContext);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "ImportSecurityContextW status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_ImportSecurityContextA(SEC_CHAR* pszPackage,
                                                              PSecBuffer pPackedContext,
                                                              HANDLE pToken, PCtxtHandle phContext)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->ImportSecurityContextA)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->ImportSecurityContextA(pszPackage, pPackedContext, pToken, phContext);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "ImportSecurityContextA status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_QueryCredentialsAttributesW(PCredHandle phCredential,
                                                                   ULONG ulAttribute, void* pBuffer)
{
  SEC_WCHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_WCHAR*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameW(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->QueryCredentialsAttributesW)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->QueryCredentialsAttributesW(phCredential, ulAttribute, pBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "QueryCredentialsAttributesW status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_QueryCredentialsAttributesA(PCredHandle phCredential,
                                                                   ULONG ulAttribute, void* pBuffer)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->QueryCredentialsAttributesA)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->QueryCredentialsAttributesA(phCredential, ulAttribute, pBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "QueryCredentialsAttributesA status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_SetCredentialsAttributesW(PCredHandle phCredential,
                                                                 ULONG ulAttribute, void* pBuffer,
                                                                 ULONG cbBuffer)
{
  SEC_WCHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_WCHAR*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameW(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->SetCredentialsAttributesW)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->SetCredentialsAttributesW(phCredential, ulAttribute, pBuffer, cbBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "SetCredentialsAttributesW status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_SetCredentialsAttributesA(PCredHandle phCredential,
                                                                 ULONG ulAttribute, void* pBuffer,
                                                                 ULONG cbBuffer)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->SetCredentialsAttributesA)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->SetCredentialsAttributesA(phCredential, ulAttribute, pBuffer, cbBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "SetCredentialsAttributesA status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

/* Context Management */

static SECURITY_STATUS SEC_ENTRY
winpr_AcceptSecurityContext(PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
                            ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
                            PSecBufferDesc pOutput, PULONG pfContextAttr, PTimeStamp ptsTimeStamp)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->AcceptSecurityContext)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status =
      table->AcceptSecurityContext(phCredential, phContext, pInput, fContextReq, TargetDataRep,
                                   phNewContext, pOutput, pfContextAttr, ptsTimeStamp);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "AcceptSecurityContext status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_ApplyControlToken(PCtxtHandle phContext,
                                                         PSecBufferDesc pInput)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->ApplyControlToken)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->ApplyControlToken(phContext, pInput);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "ApplyControlToken status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_CompleteAuthToken(PCtxtHandle phContext,
                                                         PSecBufferDesc pToken)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->CompleteAuthToken)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->CompleteAuthToken(phContext, pToken);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "CompleteAuthToken status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_DeleteSecurityContext(PCtxtHandle phContext)
{
  const char* Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  const SecurityFunctionTableA* table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->DeleteSecurityContext)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  const UINT32 status = table->DeleteSecurityContext(phContext);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "DeleteSecurityContext status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_FreeContextBuffer(void* pvContextBuffer)
{
  if (!pvContextBuffer)
    return SEC_E_INVALID_HANDLE;

  sspi_ContextBufferFree(pvContextBuffer);
  return SEC_E_OK;
}

static SECURITY_STATUS SEC_ENTRY winpr_ImpersonateSecurityContext(PCtxtHandle phContext)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->ImpersonateSecurityContext)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->ImpersonateSecurityContext(phContext);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "ImpersonateSecurityContext status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_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)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->InitializeSecurityContextW)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->InitializeSecurityContextW(phCredential, phContext, pszTargetName, fContextReq,
                                             Reserved1, TargetDataRep, pInput, Reserved2,
                                             phNewContext, pOutput, pfContextAttr, ptsExpiry);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "InitializeSecurityContextW status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_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)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phCredential);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->InitializeSecurityContextA)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->InitializeSecurityContextA(phCredential, phContext, pszTargetName, fContextReq,
                                             Reserved1, TargetDataRep, pInput, Reserved2,
                                             phNewContext, pOutput, pfContextAttr, ptsExpiry);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "InitializeSecurityContextA status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_QueryContextAttributesW(PCtxtHandle phContext,
                                                               ULONG ulAttribute, void* pBuffer)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->QueryContextAttributesW)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->QueryContextAttributesW(phContext, ulAttribute, pBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "QueryContextAttributesW status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_QueryContextAttributesA(PCtxtHandle phContext,
                                                               ULONG ulAttribute, void* pBuffer)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->QueryContextAttributesA)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->QueryContextAttributesA(phContext, ulAttribute, pBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "QueryContextAttributesA status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_QuerySecurityContextToken(PCtxtHandle phContext,
                                                                 HANDLE* phToken)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->QuerySecurityContextToken)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->QuerySecurityContextToken(phContext, phToken);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "QuerySecurityContextToken status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_SetContextAttributesW(PCtxtHandle phContext,
                                                             ULONG ulAttribute, void* pBuffer,
                                                             ULONG cbBuffer)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->SetContextAttributesW)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->SetContextAttributesW(phContext, ulAttribute, pBuffer, cbBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "SetContextAttributesW status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_SetContextAttributesA(PCtxtHandle phContext,
                                                             ULONG ulAttribute, void* pBuffer,
                                                             ULONG cbBuffer)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->SetContextAttributesA)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->SetContextAttributesA(phContext, ulAttribute, pBuffer, cbBuffer);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "SetContextAttributesA status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_RevertSecurityContext(PCtxtHandle phContext)
{
  SEC_CHAR* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableW* table = NULL;
  Name = (SEC_CHAR*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableWByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->RevertSecurityContext)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->RevertSecurityContext(phContext);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "RevertSecurityContext status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

/* Message Support */

static SECURITY_STATUS SEC_ENTRY winpr_DecryptMessage(PCtxtHandle phContext,
                                                      PSecBufferDesc pMessage, ULONG MessageSeqNo,
                                                      PULONG pfQOP)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->DecryptMessage)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->DecryptMessage(phContext, pMessage, MessageSeqNo, pfQOP);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "DecryptMessage status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_EncryptMessage(PCtxtHandle phContext, ULONG fQOP,
                                                      PSecBufferDesc pMessage, ULONG MessageSeqNo)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->EncryptMessage)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->EncryptMessage(phContext, fQOP, pMessage, MessageSeqNo);

  if (status != SEC_E_OK)
  {
    WLog_ERR(TAG, "EncryptMessage status %s [0x%08" PRIX32 "]", GetSecurityStatusString(status),
             status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
                                                     PSecBufferDesc pMessage, ULONG MessageSeqNo)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->MakeSignature)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->MakeSignature(phContext, fQOP, pMessage, MessageSeqNo);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "MakeSignature status %s [0x%08" PRIX32 "]", GetSecurityStatusString(status),
              status);
  }

  return status;
}

static SECURITY_STATUS SEC_ENTRY winpr_VerifySignature(PCtxtHandle phContext,
                                                       PSecBufferDesc pMessage, ULONG MessageSeqNo,
                                                       PULONG pfQOP)
{
  char* Name = NULL;
  SECURITY_STATUS status = 0;
  const SecurityFunctionTableA* table = NULL;
  Name = (char*)sspi_SecureHandleGetUpperPointer(phContext);

  if (!Name)
    return SEC_E_SECPKG_NOT_FOUND;

  table = sspi_GetSecurityFunctionTableAByNameA(Name);

  if (!table)
    return SEC_E_SECPKG_NOT_FOUND;

  if (!table->VerifySignature)
  {
    WLog_WARN(TAG, "Security module does not provide an implementation");
    return SEC_E_UNSUPPORTED_FUNCTION;
  }

  status = table->VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);

  if (IsSecurityStatusError(status))
  {
    WLog_WARN(TAG, "VerifySignature status %s [0x%08" PRIX32 "]",
              GetSecurityStatusString(status), status);
  }

  return status;
}

static SecurityFunctionTableA winpr_SecurityFunctionTableA = {
  3,                                 /* dwVersion */
  winpr_EnumerateSecurityPackagesA,  /* EnumerateSecurityPackages */
  winpr_QueryCredentialsAttributesA, /* QueryCredentialsAttributes */
  winpr_AcquireCredentialsHandleA,   /* AcquireCredentialsHandle */
  winpr_FreeCredentialsHandle,       /* FreeCredentialsHandle */
  NULL,                              /* Reserved2 */
  winpr_InitializeSecurityContextA,  /* InitializeSecurityContext */
  winpr_AcceptSecurityContext,       /* AcceptSecurityContext */
  winpr_CompleteAuthToken,           /* CompleteAuthToken */
  winpr_DeleteSecurityContext,       /* DeleteSecurityContext */
  winpr_ApplyControlToken,           /* ApplyControlToken */
  winpr_QueryContextAttributesA,     /* QueryContextAttributes */
  winpr_ImpersonateSecurityContext,  /* ImpersonateSecurityContext */
  winpr_RevertSecurityContext,       /* RevertSecurityContext */
  winpr_MakeSignature,               /* MakeSignature */
  winpr_VerifySignature,             /* VerifySignature */
  winpr_FreeContextBuffer,           /* FreeContextBuffer */
  winpr_QuerySecurityPackageInfoA,   /* QuerySecurityPackageInfo */
  NULL,                              /* Reserved3 */
  NULL,                              /* Reserved4 */
  winpr_ExportSecurityContext,       /* ExportSecurityContext */
  winpr_ImportSecurityContextA,      /* ImportSecurityContext */
  NULL,                              /* AddCredentials */
  NULL,                              /* Reserved8 */
  winpr_QuerySecurityContextToken,   /* QuerySecurityContextToken */
  winpr_EncryptMessage,              /* EncryptMessage */
  winpr_DecryptMessage,              /* DecryptMessage */
  winpr_SetContextAttributesA,       /* SetContextAttributes */
  winpr_SetCredentialsAttributesA,   /* SetCredentialsAttributes */
};

static SecurityFunctionTableW winpr_SecurityFunctionTableW = {
  3,                                 /* dwVersion */
  winpr_EnumerateSecurityPackagesW,  /* EnumerateSecurityPackages */
  winpr_QueryCredentialsAttributesW, /* QueryCredentialsAttributes */
  winpr_AcquireCredentialsHandleW,   /* AcquireCredentialsHandle */
  winpr_FreeCredentialsHandle,       /* FreeCredentialsHandle */
  NULL,                              /* Reserved2 */
  winpr_InitializeSecurityContextW,  /* InitializeSecurityContext */
  winpr_AcceptSecurityContext,       /* AcceptSecurityContext */
  winpr_CompleteAuthToken,           /* CompleteAuthToken */
  winpr_DeleteSecurityContext,       /* DeleteSecurityContext */
  winpr_ApplyControlToken,           /* ApplyControlToken */
  winpr_QueryContextAttributesW,     /* QueryContextAttributes */
  winpr_ImpersonateSecurityContext,  /* ImpersonateSecurityContext */
  winpr_RevertSecurityContext,       /* RevertSecurityContext */
  winpr_MakeSignature,               /* MakeSignature */
  winpr_VerifySignature,             /* VerifySignature */
  winpr_FreeContextBuffer,           /* FreeContextBuffer */
  winpr_QuerySecurityPackageInfoW,   /* QuerySecurityPackageInfo */
  NULL,                              /* Reserved3 */
  NULL,                              /* Reserved4 */
  winpr_ExportSecurityContext,       /* ExportSecurityContext */
  winpr_ImportSecurityContextW,      /* ImportSecurityContext */
  NULL,                              /* AddCredentials */
  NULL,                              /* Reserved8 */
  winpr_QuerySecurityContextToken,   /* QuerySecurityContextToken */
  winpr_EncryptMessage,              /* EncryptMessage */
  winpr_DecryptMessage,              /* DecryptMessage */
  winpr_SetContextAttributesW,       /* SetContextAttributes */
  winpr_SetCredentialsAttributesW,   /* SetCredentialsAttributes */
};

Coverage Report

Created: 2024-05-20 06:11