/src/FreeRDP/winpr/libwinpr/ncrypt/ncrypt_pkcs11.c

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/**
 * WinPR: Windows Portable Runtime
 * NCrypt pkcs11 provider
 *
 * Copyright 2021 David Fort <contact@hardening-consulting.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 <stdlib.h>

#include <winpr/library.h>
#include <winpr/assert.h>
#include <winpr/spec.h>
#include <winpr/smartcard.h>
#include <winpr/asn1.h>

#include "../log.h"
#include "ncrypt.h"

/* https://github.com/latchset/pkcs11-headers/blob/main/public-domain/3.1/pkcs11.h */
#include "pkcs11-headers/pkcs11.h"

#define TAG WINPR_TAG("ncryptp11")

#define MAX_SLOTS 64
#define MAX_KEYS 64
#define MAX_KEYS_PER_SLOT 64

/** @brief ncrypt provider handle */
typedef struct
{
  NCryptBaseProvider baseProvider;

  HANDLE library;
  CK_FUNCTION_LIST_PTR p11;
  char* modulePath;
} NCryptP11ProviderHandle;

/** @brief a handle returned by NCryptOpenKey */
typedef struct
{
  NCryptBaseHandle base;
  NCryptP11ProviderHandle* provider;
  CK_SLOT_ID slotId;
  CK_BYTE keyCertId[64];
  CK_ULONG keyCertIdLen;
} NCryptP11KeyHandle;

typedef struct
{
  CK_SLOT_ID slotId;
  CK_SLOT_INFO slotInfo;
  CK_KEY_TYPE keyType;
  CK_CHAR keyLabel[256];
  CK_ULONG idLen;
  CK_BYTE id[64];
} NCryptKeyEnum;

typedef struct
{
  CK_ULONG nslots;
  CK_SLOT_ID slots[MAX_SLOTS];
  CK_ULONG nKeys;
  NCryptKeyEnum keys[MAX_KEYS];
  CK_ULONG keyIndex;
} P11EnumKeysState;

typedef struct
{
  const char* label;
  BYTE tag[3];
} piv_cert_tags_t;
static const piv_cert_tags_t piv_cert_tags[] = {
  { "Certificate for PIV Authentication", "\x5F\xC1\x05" },
  { "Certificate for Digital Signature", "\x5F\xC1\x0A" },
  { "Certificate for Key Management", "\x5F\xC1\x0B" },
  { "Certificate for Card Authentication", "\x5F\xC1\x01" },
};

static const BYTE APDU_PIV_SELECT_AID[] = { 0x00, 0xA4, 0x04, 0x00, 0x09, 0xA0, 0x00, 0x00,
                                          0x03, 0x08, 0x00, 0x00, 0x10, 0x00, 0x00 };
static const BYTE APDU_PIV_GET_CHUID[] = { 0x00, 0xCB, 0x3F, 0xFF, 0x05, 0x5C,
                                         0x03, 0x5F, 0xC1, 0x02, 0x00 };
#define PIV_CONTAINER_NAME_LEN 36

static CK_OBJECT_CLASS object_class_public_key = CKO_PUBLIC_KEY;
static CK_BBOOL object_verify = CK_TRUE;
static CK_KEY_TYPE object_ktype_rsa = CKK_RSA;

static CK_ATTRIBUTE public_key_filter[] = {
  { CKA_CLASS, &object_class_public_key, sizeof(object_class_public_key) },
  { CKA_VERIFY, &object_verify, sizeof(object_verify) },
  { CKA_KEY_TYPE, &object_ktype_rsa, sizeof(object_ktype_rsa) }
};

static SECURITY_STATUS NCryptP11StorageProvider_dtor(NCRYPT_HANDLE handle)
{
  NCryptP11ProviderHandle* provider = (NCryptP11ProviderHandle*)handle;
  CK_RV rv = 0;

  WINPR_ASSERT(provider);
  rv = provider->p11->C_Finalize(NULL);
  if (rv != CKR_OK)
  {
  }

  free(provider->modulePath);

  if (provider->library)
    FreeLibrary(provider->library);

  return winpr_NCryptDefault_dtor(handle);
}

static void fix_padded_string(char* str, size_t maxlen)
{
  char* ptr = str + maxlen - 1;

  while (ptr > str && *ptr == ' ')
    ptr--;
  ptr++;
  *ptr = 0;
}

static BOOL attributes_have_unallocated_buffers(CK_ATTRIBUTE_PTR attributes, CK_ULONG count)
{
  for (CK_ULONG i = 0; i < count; i++)
  {
    if (!attributes[i].pValue && (attributes[i].ulValueLen != CK_UNAVAILABLE_INFORMATION))
      return TRUE;
  }

  return FALSE;
}

static BOOL attribute_allocate_attribute_array(CK_ATTRIBUTE_PTR attribute)
{
  WINPR_ASSERT(attribute);
  attribute->pValue = calloc(attribute->ulValueLen, sizeof(void*));
  return !!attribute->pValue;
}

static BOOL attribute_allocate_ulong_array(CK_ATTRIBUTE_PTR attribute)
{
  attribute->pValue = calloc(attribute->ulValueLen, sizeof(CK_ULONG));
  return !!attribute->pValue;
}

static BOOL attribute_allocate_buffer(CK_ATTRIBUTE_PTR attribute)
{
  attribute->pValue = calloc(attribute->ulValueLen, 1);
  return !!attribute->pValue;
}

static BOOL attributes_allocate_buffers(CK_ATTRIBUTE_PTR attributes, CK_ULONG count)
{
  BOOL ret = TRUE;

  for (CK_ULONG i = 0; i < count; i++)
  {
    if (attributes[i].pValue || (attributes[i].ulValueLen == CK_UNAVAILABLE_INFORMATION))
      continue;

    switch (attributes[i].type)
    {
      case CKA_WRAP_TEMPLATE:
      case CKA_UNWRAP_TEMPLATE:
        ret &= attribute_allocate_attribute_array(&attributes[i]);
        break;

      case CKA_ALLOWED_MECHANISMS:
        ret &= attribute_allocate_ulong_array(&attributes[i]);
        break;

      default:
        ret &= attribute_allocate_buffer(&attributes[i]);
        break;
    }
  }

  return ret;
}

static CK_RV object_load_attributes(NCryptP11ProviderHandle* provider, CK_SESSION_HANDLE session,
                                    CK_OBJECT_HANDLE object, CK_ATTRIBUTE_PTR attributes,
                                    CK_ULONG count)
{
  CK_RV rv = 0;

  WINPR_ASSERT(provider);
  WINPR_ASSERT(provider->p11);
  WINPR_ASSERT(provider->p11->C_GetAttributeValue);

  rv = provider->p11->C_GetAttributeValue(session, object, attributes, count);

  switch (rv)
  {
    case CKR_OK:
      if (!attributes_have_unallocated_buffers(attributes, count))
        return rv;
      /* fallthrough */
      WINPR_FALLTHROUGH
    case CKR_ATTRIBUTE_SENSITIVE:
    case CKR_ATTRIBUTE_TYPE_INVALID:
    case CKR_BUFFER_TOO_SMALL:
      /* attributes need some buffers for the result value */
      if (!attributes_allocate_buffers(attributes, count))
        return CKR_HOST_MEMORY;

      rv = provider->p11->C_GetAttributeValue(session, object, attributes, count);
      break;
    default:
      return rv;
  }

  switch (rv)
  {
    case CKR_ATTRIBUTE_SENSITIVE:
    case CKR_ATTRIBUTE_TYPE_INVALID:
    case CKR_BUFFER_TOO_SMALL:
      WLog_ERR(TAG, "C_GetAttributeValue return %d even after buffer allocation", rv);
      break;
  }
  return rv;
}

static const char* CK_RV_error_string(CK_RV rv)
{
  static char generic_buffer[200];
#define ERR_ENTRY(X) \
  case X:          \
    return #X

  switch (rv)
  {
    ERR_ENTRY(CKR_OK);
    ERR_ENTRY(CKR_CANCEL);
    ERR_ENTRY(CKR_HOST_MEMORY);
    ERR_ENTRY(CKR_SLOT_ID_INVALID);
    ERR_ENTRY(CKR_GENERAL_ERROR);
    ERR_ENTRY(CKR_FUNCTION_FAILED);
    ERR_ENTRY(CKR_ARGUMENTS_BAD);
    ERR_ENTRY(CKR_NO_EVENT);
    ERR_ENTRY(CKR_NEED_TO_CREATE_THREADS);
    ERR_ENTRY(CKR_CANT_LOCK);
    ERR_ENTRY(CKR_ATTRIBUTE_READ_ONLY);
    ERR_ENTRY(CKR_ATTRIBUTE_SENSITIVE);
    ERR_ENTRY(CKR_ATTRIBUTE_TYPE_INVALID);
    ERR_ENTRY(CKR_ATTRIBUTE_VALUE_INVALID);
    ERR_ENTRY(CKR_DATA_INVALID);
    ERR_ENTRY(CKR_DATA_LEN_RANGE);
    ERR_ENTRY(CKR_DEVICE_ERROR);
    ERR_ENTRY(CKR_DEVICE_MEMORY);
    ERR_ENTRY(CKR_DEVICE_REMOVED);
    ERR_ENTRY(CKR_ENCRYPTED_DATA_INVALID);
    ERR_ENTRY(CKR_ENCRYPTED_DATA_LEN_RANGE);
    ERR_ENTRY(CKR_FUNCTION_CANCELED);
    ERR_ENTRY(CKR_FUNCTION_NOT_PARALLEL);
    ERR_ENTRY(CKR_FUNCTION_NOT_SUPPORTED);
    ERR_ENTRY(CKR_KEY_HANDLE_INVALID);
    ERR_ENTRY(CKR_KEY_SIZE_RANGE);
    ERR_ENTRY(CKR_KEY_TYPE_INCONSISTENT);
    ERR_ENTRY(CKR_KEY_NOT_NEEDED);
    ERR_ENTRY(CKR_KEY_CHANGED);
    ERR_ENTRY(CKR_KEY_NEEDED);
    ERR_ENTRY(CKR_KEY_INDIGESTIBLE);
    ERR_ENTRY(CKR_KEY_FUNCTION_NOT_PERMITTED);
    ERR_ENTRY(CKR_KEY_NOT_WRAPPABLE);
    ERR_ENTRY(CKR_KEY_UNEXTRACTABLE);
    ERR_ENTRY(CKR_MECHANISM_INVALID);
    ERR_ENTRY(CKR_MECHANISM_PARAM_INVALID);
    ERR_ENTRY(CKR_OBJECT_HANDLE_INVALID);
    ERR_ENTRY(CKR_OPERATION_ACTIVE);
    ERR_ENTRY(CKR_OPERATION_NOT_INITIALIZED);
    ERR_ENTRY(CKR_PIN_INCORRECT);
    ERR_ENTRY(CKR_PIN_INVALID);
    ERR_ENTRY(CKR_PIN_LEN_RANGE);
    ERR_ENTRY(CKR_PIN_EXPIRED);
    ERR_ENTRY(CKR_PIN_LOCKED);
    ERR_ENTRY(CKR_SESSION_CLOSED);
    ERR_ENTRY(CKR_SESSION_COUNT);
    ERR_ENTRY(CKR_SESSION_HANDLE_INVALID);
    ERR_ENTRY(CKR_SESSION_PARALLEL_NOT_SUPPORTED);
    ERR_ENTRY(CKR_SESSION_READ_ONLY);
    ERR_ENTRY(CKR_SESSION_EXISTS);
    ERR_ENTRY(CKR_SESSION_READ_ONLY_EXISTS);
    ERR_ENTRY(CKR_SESSION_READ_WRITE_SO_EXISTS);
    ERR_ENTRY(CKR_SIGNATURE_INVALID);
    ERR_ENTRY(CKR_SIGNATURE_LEN_RANGE);
    ERR_ENTRY(CKR_TEMPLATE_INCOMPLETE);
    ERR_ENTRY(CKR_TEMPLATE_INCONSISTENT);
    ERR_ENTRY(CKR_TOKEN_NOT_PRESENT);
    ERR_ENTRY(CKR_TOKEN_NOT_RECOGNIZED);
    ERR_ENTRY(CKR_TOKEN_WRITE_PROTECTED);
    ERR_ENTRY(CKR_UNWRAPPING_KEY_HANDLE_INVALID);
    ERR_ENTRY(CKR_UNWRAPPING_KEY_SIZE_RANGE);
    ERR_ENTRY(CKR_UNWRAPPING_KEY_TYPE_INCONSISTENT);
    ERR_ENTRY(CKR_USER_ALREADY_LOGGED_IN);
    ERR_ENTRY(CKR_USER_NOT_LOGGED_IN);
    ERR_ENTRY(CKR_USER_PIN_NOT_INITIALIZED);
    ERR_ENTRY(CKR_USER_TYPE_INVALID);
    ERR_ENTRY(CKR_USER_ANOTHER_ALREADY_LOGGED_IN);
    ERR_ENTRY(CKR_USER_TOO_MANY_TYPES);
    ERR_ENTRY(CKR_WRAPPED_KEY_INVALID);
    ERR_ENTRY(CKR_WRAPPED_KEY_LEN_RANGE);
    ERR_ENTRY(CKR_WRAPPING_KEY_HANDLE_INVALID);
    ERR_ENTRY(CKR_WRAPPING_KEY_SIZE_RANGE);
    ERR_ENTRY(CKR_WRAPPING_KEY_TYPE_INCONSISTENT);
    ERR_ENTRY(CKR_RANDOM_SEED_NOT_SUPPORTED);
    ERR_ENTRY(CKR_RANDOM_NO_RNG);
    ERR_ENTRY(CKR_DOMAIN_PARAMS_INVALID);
    ERR_ENTRY(CKR_BUFFER_TOO_SMALL);
    ERR_ENTRY(CKR_SAVED_STATE_INVALID);
    ERR_ENTRY(CKR_INFORMATION_SENSITIVE);
    ERR_ENTRY(CKR_STATE_UNSAVEABLE);
    ERR_ENTRY(CKR_CRYPTOKI_NOT_INITIALIZED);
    ERR_ENTRY(CKR_CRYPTOKI_ALREADY_INITIALIZED);
    ERR_ENTRY(CKR_MUTEX_BAD);
    ERR_ENTRY(CKR_MUTEX_NOT_LOCKED);
    ERR_ENTRY(CKR_FUNCTION_REJECTED);
    default:
      snprintf(generic_buffer, sizeof(generic_buffer), "unknown 0x%lx", rv);
      return generic_buffer;
  }
#undef ERR_ENTRY
}

static SECURITY_STATUS collect_keys(NCryptP11ProviderHandle* provider, P11EnumKeysState* state)
{
  CK_OBJECT_HANDLE slotObjects[MAX_KEYS_PER_SLOT] = { 0 };
  const char* step = NULL;

  WINPR_ASSERT(provider);

  CK_FUNCTION_LIST_PTR p11 = provider->p11;
  WINPR_ASSERT(p11);

  WLog_DBG(TAG, "checking %" PRIu32 " slots for valid keys...", state->nslots);
  state->nKeys = 0;
  for (CK_ULONG i = 0; i < state->nslots; i++)
  {
    CK_SESSION_HANDLE session = (CK_SESSION_HANDLE)NULL;
    CK_SLOT_INFO slotInfo = { 0 };
    CK_TOKEN_INFO tokenInfo = { 0 };

    WINPR_ASSERT(p11->C_GetSlotInfo);
    CK_RV rv = p11->C_GetSlotInfo(state->slots[i], &slotInfo);
    if (rv != CKR_OK)
    {
      WLog_ERR(TAG, "unable to retrieve information for slot #%d(%d)", i, state->slots[i]);
      continue;
    }

    fix_padded_string((char*)slotInfo.slotDescription, sizeof(slotInfo.slotDescription));
    WLog_DBG(TAG, "collecting keys for slot #%d(%lu) descr='%s' flags=0x%x", i, state->slots[i],
             slotInfo.slotDescription, slotInfo.flags);

    /* this is a safety guard as we're supposed to have listed only readers with tokens in them
     */
    if (!(slotInfo.flags & CKF_TOKEN_PRESENT))
    {
      WLog_INFO(TAG, "token not present for slot #%d(%d)", i, state->slots[i]);
      continue;
    }

    WINPR_ASSERT(p11->C_GetTokenInfo);
    rv = p11->C_GetTokenInfo(state->slots[i], &tokenInfo);
    if (rv != CKR_OK)
    {
      WLog_INFO(TAG, "unable to retrieve token info for slot #%d(%d)", i, state->slots[i]);
    }
    else
    {
      fix_padded_string((char*)tokenInfo.label, sizeof(tokenInfo.label));
      WLog_DBG(TAG, "token, label='%s' flags=0x%x", tokenInfo.label, tokenInfo.flags);
    }

    WINPR_ASSERT(p11->C_OpenSession);
    rv = p11->C_OpenSession(state->slots[i], CKF_SERIAL_SESSION, NULL, NULL, &session);
    if (rv != CKR_OK)
    {
      WLog_ERR(TAG, "unable to openSession for slot #%d(%d), session=%p rv=%s", i,
               state->slots[i], session, CK_RV_error_string(rv));
      continue;
    }

    WINPR_ASSERT(p11->C_FindObjectsInit);
    rv = p11->C_FindObjectsInit(session, public_key_filter, ARRAYSIZE(public_key_filter));
    if (rv != CKR_OK)
    {
      // TODO: shall it be fatal ?
      WLog_ERR(TAG, "unable to initiate search for slot #%d(%d), rv=%s", i, state->slots[i],
               CK_RV_error_string(rv));
      step = "C_FindObjectsInit";
      goto cleanup_FindObjectsInit;
    }

    CK_ULONG nslotObjects = 0;
    WINPR_ASSERT(p11->C_FindObjects);
    rv = p11->C_FindObjects(session, &slotObjects[0], ARRAYSIZE(slotObjects), &nslotObjects);
    if (rv != CKR_OK)
    {
      WLog_ERR(TAG, "unable to findObjects for slot #%d(%d), rv=%s", i, state->slots[i],
               CK_RV_error_string(rv));
      step = "C_FindObjects";
      goto cleanup_FindObjects;
    }

    WLog_DBG(TAG, "slot has %d objects", nslotObjects);
    for (CK_ULONG j = 0; j < nslotObjects; j++)
    {
      NCryptKeyEnum* key = &state->keys[state->nKeys];
      CK_OBJECT_CLASS dataClass = CKO_PUBLIC_KEY;
      CK_ATTRIBUTE key_or_certAttrs[] = {
        { CKA_ID, &key->id, sizeof(key->id) },
        { CKA_CLASS, &dataClass, sizeof(dataClass) },
        { CKA_LABEL, &key->keyLabel, sizeof(key->keyLabel) },
        { CKA_KEY_TYPE, &key->keyType, sizeof(key->keyType) }
      };

      rv = object_load_attributes(provider, session, slotObjects[j], key_or_certAttrs,
                                  ARRAYSIZE(key_or_certAttrs));
      if (rv != CKR_OK)
      {
        WLog_ERR(TAG, "error getting attributes, rv=%s", CK_RV_error_string(rv));
        continue;
      }

      key->idLen = key_or_certAttrs[0].ulValueLen;
      key->slotId = state->slots[i];
      key->slotInfo = slotInfo;
      state->nKeys++;
    }

  cleanup_FindObjects:
    WINPR_ASSERT(p11->C_FindObjectsFinal);
    rv = p11->C_FindObjectsFinal(session);
    if (rv != CKR_OK)
    {
      WLog_ERR(TAG, "error during C_FindObjectsFinal for slot #%d(%d) (errorStep=%s), rv=%s",
               i, state->slots[i], step, CK_RV_error_string(rv));
    }
  cleanup_FindObjectsInit:
    WINPR_ASSERT(p11->C_CloseSession);
    rv = p11->C_CloseSession(session);
    if (rv != CKR_OK)
    {
      WLog_ERR(TAG, "error closing session for slot #%d(%d) (errorStep=%s), rv=%s", i,
               state->slots[i], step, CK_RV_error_string(rv));
    }
  }

  return ERROR_SUCCESS;
}

static BOOL convertKeyType(CK_KEY_TYPE k, LPWSTR dest, DWORD len, DWORD* outlen)
{
  DWORD retLen = 0;
  const WCHAR* r = NULL;

#define ALGO_CASE(V, S) \
  case V:             \
    r = S;          \
    break
  switch (k)
  {
    ALGO_CASE(CKK_RSA, BCRYPT_RSA_ALGORITHM);
    ALGO_CASE(CKK_DSA, BCRYPT_DSA_ALGORITHM);
    ALGO_CASE(CKK_DH, BCRYPT_DH_ALGORITHM);
    ALGO_CASE(CKK_EC, BCRYPT_ECDSA_ALGORITHM);
    ALGO_CASE(CKK_RC2, BCRYPT_RC2_ALGORITHM);
    ALGO_CASE(CKK_RC4, BCRYPT_RC4_ALGORITHM);
    ALGO_CASE(CKK_DES, BCRYPT_DES_ALGORITHM);
    ALGO_CASE(CKK_DES3, BCRYPT_3DES_ALGORITHM);
    case CKK_DES2:
    case CKK_X9_42_DH:
    case CKK_KEA:
    case CKK_GENERIC_SECRET:
    case CKK_CAST:
    case CKK_CAST3:
    case CKK_CAST128:
    case CKK_RC5:
    case CKK_IDEA:
    case CKK_SKIPJACK:
    case CKK_BATON:
    case CKK_JUNIPER:
    case CKK_CDMF:
    case CKK_AES:
    case CKK_BLOWFISH:
    case CKK_TWOFISH:
    default:
      break;
  }
#undef ALGO_CASE

  retLen = _wcslen(r);
  if (outlen)
    *outlen = retLen;

  if (!r)
  {
    if (dest && len > 0)
      dest[0] = 0;
    return FALSE;
  }
  else
  {
    if (retLen + 1 < len)
    {
      WLog_ERR(TAG, "target buffer is too small for algo name");
      return FALSE;
    }

    if (dest)
    {
      memcpy(dest, r, retLen * 2);
      dest[retLen] = 0;
    }
  }

  return TRUE;
}

static void wprintKeyName(LPWSTR str, CK_SLOT_ID slotId, CK_BYTE* id, CK_ULONG idLen)
{
  char asciiName[128] = { 0 };
  char* ptr = asciiName;
  const CK_BYTE* bytePtr = NULL;

  *ptr = '\\';
  ptr++;

  bytePtr = ((CK_BYTE*)&slotId);
  for (CK_ULONG i = 0; i < sizeof(slotId); i++, bytePtr++, ptr += 2)
    snprintf(ptr, 3, "%.2x", *bytePtr);

  *ptr = '\\';
  ptr++;

  for (CK_ULONG i = 0; i < idLen; i++, id++, ptr += 2)
    snprintf(ptr, 3, "%.2x", *id);

  ConvertUtf8NToWChar(asciiName, ARRAYSIZE(asciiName), str,
                      strnlen(asciiName, ARRAYSIZE(asciiName)) + 1);
}

static size_t parseHex(const char* str, const char* end, CK_BYTE* target)
{
  int ret = 0;

  for (; str != end && *str; str++, ret++, target++)
  {
    CK_BYTE v = 0;
    if (*str <= '9' && *str >= '0')
    {
      v = (*str - '0');
    }
    else if (*str <= 'f' && *str >= 'a')
    {
      v = (10 + *str - 'a');
    }
    else if (*str <= 'F' && *str >= 'A')
    {
      v |= (10 + *str - 'A');
    }
    else
    {
      return 0;
    }
    v <<= 4;
    str++;

    if (!*str || str == end)
      return 0;

    if (*str <= '9' && *str >= '0')
    {
      v |= (*str - '0');
    }
    else if (*str <= 'f' && *str >= 'a')
    {
      v |= (10 + *str - 'a');
    }
    else if (*str <= 'F' && *str >= 'A')
    {
      v |= (10 + *str - 'A');
    }
    else
    {
      return 0;
    }

    *target = v;
  }
  return ret;
}

static SECURITY_STATUS parseKeyName(LPCWSTR pszKeyName, CK_SLOT_ID* slotId, CK_BYTE* id,
                                    CK_ULONG* idLen)
{
  char asciiKeyName[128] = { 0 };
  char* pos = NULL;

  if (ConvertWCharToUtf8(pszKeyName, asciiKeyName, ARRAYSIZE(asciiKeyName)) < 0)
    return NTE_BAD_KEY;

  if (*asciiKeyName != '\\')
    return NTE_BAD_KEY;

  pos = strchr(&asciiKeyName[1], '\\');
  if (!pos)
    return NTE_BAD_KEY;

  if ((size_t)(pos - &asciiKeyName[1]) > sizeof(CK_SLOT_ID) * 2ull)
    return NTE_BAD_KEY;

  *slotId = (CK_SLOT_ID)0;
  if (parseHex(&asciiKeyName[1], pos, (CK_BYTE*)slotId) != sizeof(CK_SLOT_ID))
    return NTE_BAD_KEY;

  *idLen = parseHex(pos + 1, NULL, id);
  if (!*idLen)
    return NTE_BAD_KEY;

  return ERROR_SUCCESS;
}

static SECURITY_STATUS NCryptP11EnumKeys(NCRYPT_PROV_HANDLE hProvider, LPCWSTR pszScope,
                                         NCryptKeyName** ppKeyName, PVOID* ppEnumState,
                                         DWORD dwFlags)
{
  NCryptP11ProviderHandle* provider = (NCryptP11ProviderHandle*)hProvider;
  P11EnumKeysState* state = (P11EnumKeysState*)*ppEnumState;
  CK_RV rv = { 0 };
  CK_SLOT_ID currentSlot = { 0 };
  CK_SESSION_HANDLE currentSession = (CK_SESSION_HANDLE)NULL;
  char slotFilterBuffer[65] = { 0 };
  char* slotFilter = NULL;
  size_t slotFilterLen = 0;

  SECURITY_STATUS ret = checkNCryptHandle((NCRYPT_HANDLE)hProvider, WINPR_NCRYPT_PROVIDER);
  if (ret != ERROR_SUCCESS)
    return ret;

  if (pszScope)
  {
    /*
     * check whether pszScope is of the form \\.\<reader name>\ for filtering by
     * card reader
     */
    char asciiScope[128 + 6 + 1] = { 0 };
    size_t asciiScopeLen = 0;

    if (ConvertWCharToUtf8(pszScope, asciiScope, ARRAYSIZE(asciiScope) - 1) < 0)
    {
      WLog_WARN(TAG, "Invalid scope");
      return NTE_INVALID_PARAMETER;
    }

    if (strstr(asciiScope, "\\\\.\\") != asciiScope)
    {
      WLog_WARN(TAG, "Invalid scope '%s'", asciiScope);
      return NTE_INVALID_PARAMETER;
    }

    asciiScopeLen = strnlen(asciiScope, ARRAYSIZE(asciiScope));
    if ((asciiScopeLen < 1) || (asciiScope[asciiScopeLen - 1] != '\\'))
    {
      WLog_WARN(TAG, "Invalid scope '%s'", asciiScope);
      return NTE_INVALID_PARAMETER;
    }

    asciiScope[asciiScopeLen - 1] = 0;

    strncpy(slotFilterBuffer, &asciiScope[4], sizeof(slotFilterBuffer));
    slotFilter = slotFilterBuffer;
    slotFilterLen = asciiScopeLen - 5;
  }

  if (!state)
  {
    state = (P11EnumKeysState*)calloc(1, sizeof(*state));
    if (!state)
      return NTE_NO_MEMORY;

    WINPR_ASSERT(provider->p11->C_GetSlotList);
    rv = provider->p11->C_GetSlotList(CK_TRUE, NULL, &state->nslots);
    if (rv != CKR_OK)
    {
      /* TODO: perhaps convert rv to NTE_*** errors */
      WLog_WARN(TAG, "C_GetSlotList failed with %u", rv);
      return NTE_FAIL;
    }

    if (state->nslots > MAX_SLOTS)
      state->nslots = MAX_SLOTS;

    rv = provider->p11->C_GetSlotList(CK_TRUE, state->slots, &state->nslots);
    if (rv != CKR_OK)
    {
      free(state);
      /* TODO: perhaps convert rv to NTE_*** errors */
      WLog_WARN(TAG, "C_GetSlotList failed with %u", rv);
      return NTE_FAIL;
    }

    ret = collect_keys(provider, state);
    if (ret != ERROR_SUCCESS)
    {
      free(state);
      return ret;
    }

    *ppEnumState = state;
  }

  for (; state->keyIndex < state->nKeys; state->keyIndex++)
  {
    NCryptKeyName* keyName = NULL;
    NCryptKeyEnum* key = &state->keys[state->keyIndex];
    CK_OBJECT_CLASS oclass = CKO_CERTIFICATE;
    CK_CERTIFICATE_TYPE ctype = CKC_X_509;
    CK_ATTRIBUTE certificateFilter[] = { { CKA_CLASS, &oclass, sizeof(oclass) },
                                       { CKA_CERTIFICATE_TYPE, &ctype, sizeof(ctype) },
                                       { CKA_ID, key->id, key->idLen } };
    CK_ULONG ncertObjects = 0;
    CK_OBJECT_HANDLE certObject = 0;

    /* check the reader filter if any */
    if (slotFilter && memcmp(key->slotInfo.slotDescription, slotFilter, slotFilterLen) != 0)
      continue;

    if (!currentSession || (currentSlot != key->slotId))
    {
      /* if the current session doesn't match the current key's slot, open a new one
       */
      if (currentSession)
      {
        WINPR_ASSERT(provider->p11->C_CloseSession);
        rv = provider->p11->C_CloseSession(currentSession);
        currentSession = (CK_SESSION_HANDLE)NULL;
      }

      WINPR_ASSERT(provider->p11->C_OpenSession);
      rv = provider->p11->C_OpenSession(key->slotId, CKF_SERIAL_SESSION, NULL, NULL,
                                        &currentSession);
      if (rv != CKR_OK)
      {
        WLog_ERR(TAG, "unable to openSession for slot %d", key->slotId);
        continue;
      }
      currentSlot = key->slotId;
    }

    /* look if we can find a certificate that matches the key's id */
    WINPR_ASSERT(provider->p11->C_FindObjectsInit);
    rv = provider->p11->C_FindObjectsInit(currentSession, certificateFilter,
                                          ARRAYSIZE(certificateFilter));
    if (rv != CKR_OK)
    {
      WLog_ERR(TAG, "unable to initiate search for slot %d", key->slotId);
      continue;
    }

    WINPR_ASSERT(provider->p11->C_FindObjects);
    rv = provider->p11->C_FindObjects(currentSession, &certObject, 1, &ncertObjects);
    if (rv != CKR_OK)
    {
      WLog_ERR(TAG, "unable to findObjects for slot %d", currentSlot);
      goto cleanup_FindObjects;
    }

    if (ncertObjects)
    {
      /* sizeof keyName struct + "\<slotId>\<certId>" + keyName->pszAlgid */
      DWORD algoSz = 0;
      size_t KEYNAME_SZ =
          (1 + (sizeof(key->slotId) * 2) /*slotId*/ + 1 + (key->idLen * 2) + 1) * 2;

      convertKeyType(key->keyType, NULL, 0, &algoSz);
      KEYNAME_SZ += (algoSz + 1) * 2;

      keyName = calloc(1, sizeof(*keyName) + KEYNAME_SZ);
      if (!keyName)
      {
        WLog_ERR(TAG, "unable to allocate keyName");
        goto cleanup_FindObjects;
      }
      keyName->dwLegacyKeySpec = AT_KEYEXCHANGE | AT_SIGNATURE;
      keyName->dwFlags = NCRYPT_MACHINE_KEY_FLAG;
      keyName->pszName = (LPWSTR)(keyName + 1);
      wprintKeyName(keyName->pszName, key->slotId, key->id, key->idLen);

      keyName->pszAlgid = keyName->pszName + _wcslen(keyName->pszName) + 1;
      convertKeyType(key->keyType, keyName->pszAlgid, algoSz + 1, NULL);
    }

  cleanup_FindObjects:
    WINPR_ASSERT(provider->p11->C_FindObjectsFinal);
    rv = provider->p11->C_FindObjectsFinal(currentSession);

    if (keyName)
    {
      *ppKeyName = keyName;
      state->keyIndex++;
      return ERROR_SUCCESS;
    }
  }

  return NTE_NO_MORE_ITEMS;
}

static SECURITY_STATUS get_piv_container_name(NCryptP11KeyHandle* key, const BYTE* piv_tag,
                                              BYTE* output, size_t output_len)
{
  CK_SLOT_INFO slot_info = { 0 };
  CK_FUNCTION_LIST_PTR p11 = NULL;
  WCHAR* reader = NULL;
  SCARDCONTEXT context = 0;
  SCARDHANDLE card = 0;
  DWORD proto = 0;
  const SCARD_IO_REQUEST* pci = NULL;
  BYTE buf[258] = { 0 };
  char container_name[PIV_CONTAINER_NAME_LEN + 1] = { 0 };
  DWORD buf_len = 0;
  SECURITY_STATUS ret = NTE_BAD_KEY;
  WinPrAsn1Decoder dec = { 0 };
  WinPrAsn1Decoder dec2 = { 0 };
  size_t len = 0;
  BYTE tag = 0;
  BYTE* p = NULL;
  wStream s = { 0 };

  WINPR_ASSERT(key);
  WINPR_ASSERT(piv_tag);

  WINPR_ASSERT(key->provider);
  p11 = key->provider->p11;
  WINPR_ASSERT(p11);

  /* Get the reader the card is in */
  WINPR_ASSERT(p11->C_GetSlotInfo);
  if (p11->C_GetSlotInfo(key->slotId, &slot_info) != CKR_OK)
    return NTE_BAD_KEY;

  fix_padded_string((char*)slot_info.slotDescription, sizeof(slot_info.slotDescription));
  reader = ConvertUtf8NToWCharAlloc((char*)slot_info.slotDescription,
                                    ARRAYSIZE(slot_info.slotDescription), NULL);
  ret = NTE_NO_MEMORY;
  if (!reader)
    goto out;

  ret = NTE_BAD_KEY;
  if (SCardEstablishContext(SCARD_SCOPE_USER, NULL, NULL, &context) != SCARD_S_SUCCESS)
    goto out;

  if (SCardConnectW(context, reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_Tx, &card, &proto) !=
      SCARD_S_SUCCESS)
    goto out;
  pci = (proto == SCARD_PROTOCOL_T0) ? SCARD_PCI_T0 : SCARD_PCI_T1;

  buf_len = sizeof(buf);
  if (SCardTransmit(card, pci, APDU_PIV_SELECT_AID, sizeof(APDU_PIV_SELECT_AID), NULL, buf,
                    &buf_len) != SCARD_S_SUCCESS)
    goto out;
  if ((buf[buf_len - 2] != 0x90 || buf[buf_len - 1] != 0) && buf[buf_len - 2] != 0x61)
    goto out;

  buf_len = sizeof(buf);
  if (SCardTransmit(card, pci, APDU_PIV_GET_CHUID, sizeof(APDU_PIV_GET_CHUID), NULL, buf,
                    &buf_len) != SCARD_S_SUCCESS)
    goto out;
  if ((buf[buf_len - 2] != 0x90 || buf[buf_len - 1] != 0) && buf[buf_len - 2] != 0x61)
    goto out;

  /* Find the GUID field in the CHUID data object */
  WinPrAsn1Decoder_InitMem(&dec, WINPR_ASN1_BER, buf, buf_len);
  if (!WinPrAsn1DecReadTagAndLen(&dec, &tag, &len) || tag != 0x53)
    goto out;
  while (WinPrAsn1DecReadTagLenValue(&dec, &tag, &len, &dec2) && tag != 0x34)
    ;
  if (tag != 0x34 || len != 16)
    goto out;

  s = WinPrAsn1DecGetStream(&dec2);
  p = Stream_Buffer(&s);

  /* Construct the value Windows would use for a PIV key's container name */
  snprintf(container_name, PIV_CONTAINER_NAME_LEN + 1,
           "%.2x%.2x%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x", p[3], p[2],
           p[1], p[0], p[5], p[4], p[7], p[6], p[8], p[9], p[10], p[11], p[12], piv_tag[0],
           piv_tag[1], piv_tag[2]);

  /* And convert it to UTF-16 */
  union
  {
    WCHAR* wc;
    BYTE* b;
  } cnv;
  cnv.b = output;
  if (ConvertUtf8NToWChar(container_name, ARRAYSIZE(container_name), cnv.wc,
                          output_len / sizeof(WCHAR)) > 0)
    ret = ERROR_SUCCESS;

out:
  free(reader);
  if (card)
    SCardDisconnect(card, SCARD_LEAVE_CARD);
  if (context)
    SCardReleaseContext(context);
  return ret;
}

static SECURITY_STATUS check_for_piv_container_name(NCryptP11KeyHandle* key, BYTE* pbOutput,
                                                    DWORD cbOutput, DWORD* pcbResult, char* label,
                                                    size_t label_len)
{
  for (size_t i = 0; i < ARRAYSIZE(piv_cert_tags); i++)
  {
    const piv_cert_tags_t* cur = &piv_cert_tags[i];
    if (strncmp(label, cur->label, label_len) == 0)
    {
      *pcbResult = (PIV_CONTAINER_NAME_LEN + 1) * sizeof(WCHAR);
      if (!pbOutput)
        return ERROR_SUCCESS;
      else if (cbOutput < (PIV_CONTAINER_NAME_LEN + 1) * sizeof(WCHAR))
        return NTE_NO_MEMORY;
      else
        return get_piv_container_name(key, cur->tag, pbOutput, cbOutput);
    }
  }
  return NTE_NOT_FOUND;
}

static SECURITY_STATUS NCryptP11KeyGetProperties(NCryptP11KeyHandle* keyHandle,
                                                 NCryptKeyGetPropertyEnum property, PBYTE pbOutput,
                                                 DWORD cbOutput, DWORD* pcbResult, DWORD dwFlags)
{
  SECURITY_STATUS ret = NTE_FAIL;
  CK_RV rv = 0;
  CK_SESSION_HANDLE session = 0;
  CK_OBJECT_HANDLE objectHandle = 0;
  CK_ULONG objectCount = 0;
  NCryptP11ProviderHandle* provider = NULL;
  CK_OBJECT_CLASS oclass = CKO_CERTIFICATE;
  CK_CERTIFICATE_TYPE ctype = CKC_X_509;
  CK_ATTRIBUTE certificateFilter[] = { { CKA_CLASS, &oclass, sizeof(oclass) },
                                     { CKA_CERTIFICATE_TYPE, &ctype, sizeof(ctype) },
                                     { CKA_ID, keyHandle->keyCertId,
                                       keyHandle->keyCertIdLen } };
  CK_ATTRIBUTE* objectFilter = certificateFilter;
  CK_ULONG objectFilterLen = ARRAYSIZE(certificateFilter);

  WINPR_ASSERT(keyHandle);
  provider = keyHandle->provider;
  WINPR_ASSERT(provider);

  switch (property)

  {
    case NCRYPT_PROPERTY_CERTIFICATE:
    case NCRYPT_PROPERTY_NAME:
      break;
    case NCRYPT_PROPERTY_READER:
    {
      CK_SLOT_INFO slotInfo;

      WINPR_ASSERT(provider->p11->C_GetSlotInfo);
      rv = provider->p11->C_GetSlotInfo(keyHandle->slotId, &slotInfo);
      if (rv != CKR_OK)
        return NTE_BAD_KEY;

#define SLOT_DESC_SZ sizeof(slotInfo.slotDescription)
      fix_padded_string((char*)slotInfo.slotDescription, SLOT_DESC_SZ);
      *pcbResult = 2 * (strnlen((char*)slotInfo.slotDescription, SLOT_DESC_SZ) + 1);
      if (pbOutput)
      {
        union
        {
          WCHAR* wc;
          BYTE* b;
        } cnv;
        cnv.b = pbOutput;
        if (cbOutput < *pcbResult)
          return NTE_NO_MEMORY;

        if (ConvertUtf8ToWChar((char*)slotInfo.slotDescription, cnv.wc,
                               cbOutput / sizeof(WCHAR)) < 0)
          return NTE_NO_MEMORY;
      }
      return ERROR_SUCCESS;
    }
    case NCRYPT_PROPERTY_SLOTID:
    {
      *pcbResult = 4;
      if (pbOutput)
      {
        UINT32* ptr = (UINT32*)pbOutput;

        if (cbOutput < 4)
          return NTE_NO_MEMORY;

        *ptr = keyHandle->slotId;
      }
      return ERROR_SUCCESS;
    }
    case NCRYPT_PROPERTY_UNKNOWN:
    default:
      return NTE_NOT_SUPPORTED;
  }

  WINPR_ASSERT(provider->p11->C_OpenSession);
  rv = provider->p11->C_OpenSession(keyHandle->slotId, CKF_SERIAL_SESSION, NULL, NULL, &session);
  if (rv != CKR_OK)
  {
    WLog_ERR(TAG, "error opening session on slot %d", keyHandle->slotId);
    return NTE_FAIL;
  }

  WINPR_ASSERT(provider->p11->C_FindObjectsInit);
  rv = provider->p11->C_FindObjectsInit(session, objectFilter, objectFilterLen);
  if (rv != CKR_OK)
  {
    WLog_ERR(TAG, "unable to initiate search for slot %d", keyHandle->slotId);
    goto out;
  }

  WINPR_ASSERT(provider->p11->C_FindObjects);
  rv = provider->p11->C_FindObjects(session, &objectHandle, 1, &objectCount);
  if (rv != CKR_OK)
  {
    WLog_ERR(TAG, "unable to findObjects for slot %d", keyHandle->slotId);
    goto out_final;
  }
  if (!objectCount)
  {
    ret = NTE_NOT_FOUND;
    goto out_final;
  }

  switch (property)
  {
    case NCRYPT_PROPERTY_CERTIFICATE:
    {
      CK_ATTRIBUTE certValue = { CKA_VALUE, pbOutput, cbOutput };

      WINPR_ASSERT(provider->p11->C_GetAttributeValue);
      rv = provider->p11->C_GetAttributeValue(session, objectHandle, &certValue, 1);
      if (rv != CKR_OK)
      {
        // TODO: do a kind of translation from CKR_* to NTE_*
      }

      *pcbResult = certValue.ulValueLen;
      ret = ERROR_SUCCESS;
      break;
    }
    case NCRYPT_PROPERTY_NAME:
    {
      CK_ATTRIBUTE attr = { CKA_LABEL, NULL, 0 };
      char* label = NULL;

      WINPR_ASSERT(provider->p11->C_GetAttributeValue);
      rv = provider->p11->C_GetAttributeValue(session, objectHandle, &attr, 1);
      if (rv == CKR_OK)
      {
        label = calloc(1, attr.ulValueLen);
        if (!label)
        {
          ret = NTE_NO_MEMORY;
          break;
        }

        attr.pValue = label;
        rv = provider->p11->C_GetAttributeValue(session, objectHandle, &attr, 1);
      }

      if (rv == CKR_OK)
      {
        /* Check if we have a PIV card */
        ret = check_for_piv_container_name(keyHandle, pbOutput, cbOutput, pcbResult, label,
                                           attr.ulValueLen);

        /* Otherwise, at least for GIDS cards the label will be the correct value */
        if (ret == NTE_NOT_FOUND)
        {
          union
          {
            WCHAR* wc;
            BYTE* b;
          } cnv;
          const size_t olen = pbOutput ? cbOutput / sizeof(WCHAR) : 0;
          cnv.b = pbOutput;
          SSIZE_T size = ConvertUtf8NToWChar(label, attr.ulValueLen, cnv.wc, olen);
          if (size < 0)
            ret = ERROR_CONVERT_TO_LARGE;
          else
            ret = ERROR_SUCCESS;
        }
      }

      free(label);
      break;
    }
    default:
      ret = NTE_NOT_SUPPORTED;
      break;
  }

out_final:
  WINPR_ASSERT(provider->p11->C_FindObjectsFinal);
  rv = provider->p11->C_FindObjectsFinal(session);
  if (rv != CKR_OK)
  {
    WLog_ERR(TAG, "error in C_FindObjectsFinal() for slot %d", keyHandle->slotId);
  }
out:
  WINPR_ASSERT(provider->p11->C_CloseSession);
  rv = provider->p11->C_CloseSession(session);
  if (rv != CKR_OK)
  {
    WLog_ERR(TAG, "error in C_CloseSession() for slot %d", keyHandle->slotId);
  }
  return ret;
}

static SECURITY_STATUS NCryptP11GetProperty(NCRYPT_HANDLE hObject, NCryptKeyGetPropertyEnum prop,
                                            PBYTE pbOutput, DWORD cbOutput, DWORD* pcbResult,
                                            DWORD dwFlags)
{
  NCryptBaseHandle* base = (NCryptBaseHandle*)hObject;

  WINPR_ASSERT(base);
  switch (base->type)
  {
    case WINPR_NCRYPT_PROVIDER:
      return ERROR_CALL_NOT_IMPLEMENTED;
    case WINPR_NCRYPT_KEY:
      return NCryptP11KeyGetProperties((NCryptP11KeyHandle*)hObject, prop, pbOutput, cbOutput,
                                       pcbResult, dwFlags);
    default:
      return ERROR_INVALID_HANDLE;
  }
  return ERROR_SUCCESS;
}

static SECURITY_STATUS NCryptP11OpenKey(NCRYPT_PROV_HANDLE hProvider, NCRYPT_KEY_HANDLE* phKey,
                                        LPCWSTR pszKeyName, DWORD dwLegacyKeySpec, DWORD dwFlags)
{
  SECURITY_STATUS ret = 0;
  CK_SLOT_ID slotId = 0;
  CK_BYTE keyCertId[64] = { 0 };
  CK_ULONG keyCertIdLen = 0;
  NCryptP11KeyHandle* keyHandle = NULL;

  ret = parseKeyName(pszKeyName, &slotId, keyCertId, &keyCertIdLen);
  if (ret != ERROR_SUCCESS)
    return ret;

  keyHandle = (NCryptP11KeyHandle*)ncrypt_new_handle(
      WINPR_NCRYPT_KEY, sizeof(*keyHandle), NCryptP11GetProperty, winpr_NCryptDefault_dtor);
  if (!keyHandle)
    return NTE_NO_MEMORY;

  keyHandle->provider = (NCryptP11ProviderHandle*)hProvider;
  keyHandle->slotId = slotId;
  memcpy(keyHandle->keyCertId, keyCertId, sizeof(keyCertId));
  keyHandle->keyCertIdLen = keyCertIdLen;
  *phKey = (NCRYPT_KEY_HANDLE)keyHandle;
  return ERROR_SUCCESS;
}

static SECURITY_STATUS initialize_pkcs11(HANDLE handle,
                                         CK_RV (*c_get_function_list)(CK_FUNCTION_LIST_PTR_PTR),
                                         NCRYPT_PROV_HANDLE* phProvider)
{
  SECURITY_STATUS status = ERROR_SUCCESS;
  NCryptP11ProviderHandle* ret = NULL;
  CK_RV rv = 0;

  WINPR_ASSERT(c_get_function_list);
  WINPR_ASSERT(phProvider);

  ret = (NCryptP11ProviderHandle*)ncrypt_new_handle(
      WINPR_NCRYPT_PROVIDER, sizeof(*ret), NCryptP11GetProperty, NCryptP11StorageProvider_dtor);
  if (!ret)
    return NTE_NO_MEMORY;

  ret->library = handle;
  ret->baseProvider.enumKeysFn = NCryptP11EnumKeys;
  ret->baseProvider.openKeyFn = NCryptP11OpenKey;

  rv = c_get_function_list(&ret->p11);
  if (rv != CKR_OK)
  {
    status = NTE_PROVIDER_DLL_FAIL;
    goto fail;
  }

  WINPR_ASSERT(ret->p11->C_Initialize);
  rv = ret->p11->C_Initialize(NULL);
  if (rv != CKR_OK)
  {
    status = NTE_PROVIDER_DLL_FAIL;
    goto fail;
  }

  *phProvider = (NCRYPT_PROV_HANDLE)ret;

fail:
  if (status != ERROR_SUCCESS)
    ret->baseProvider.baseHandle.releaseFn((NCRYPT_HANDLE)ret);
  return status;
}

SECURITY_STATUS NCryptOpenP11StorageProviderEx(NCRYPT_PROV_HANDLE* phProvider,
                                               LPCWSTR pszProviderName, DWORD dwFlags,
                                               LPCSTR* modulePaths)
{
  SECURITY_STATUS status = ERROR_INVALID_PARAMETER;
  LPCSTR defaultPaths[] = { "p11-kit-proxy.so", "opensc-pkcs11.so", NULL };

  if (!phProvider)
    return ERROR_INVALID_PARAMETER;

  if (!modulePaths)
    modulePaths = defaultPaths;

  while (*modulePaths)
  {
    HANDLE library = LoadLibrary(*modulePaths);
    typedef CK_RV (*c_get_function_list_t)(CK_FUNCTION_LIST_PTR_PTR);
    c_get_function_list_t c_get_function_list = NULL;
    NCryptP11ProviderHandle* provider = NULL;

    WLog_DBG(TAG, "Trying pkcs11 module '%s'", *modulePaths);
    if (!library)
    {
      status = NTE_PROV_DLL_NOT_FOUND;
      goto out_load_library;
    }

    c_get_function_list = (c_get_function_list_t)GetProcAddress(library, "C_GetFunctionList");
    if (!c_get_function_list)
    {
      status = NTE_PROV_TYPE_ENTRY_BAD;
      goto out_load_library;
    }

    status = initialize_pkcs11(library, c_get_function_list, phProvider);
    if (status != ERROR_SUCCESS)
    {
      status = NTE_PROVIDER_DLL_FAIL;
      goto out_load_library;
    }

    provider = (NCryptP11ProviderHandle*)*phProvider;
    provider->modulePath = _strdup(*modulePaths);

    WLog_DBG(TAG, "module '%s' loaded", *modulePaths);
    return ERROR_SUCCESS;

  out_load_library:
    if (library)
      FreeLibrary(library);
    modulePaths++;
  }

  return status;
}

const char* NCryptGetModulePath(NCRYPT_PROV_HANDLE phProvider)
{
  NCryptP11ProviderHandle* provider = (NCryptP11ProviderHandle*)phProvider;

  WINPR_ASSERT(provider);

  return provider->modulePath;
}

Coverage Report

Created: 2024-05-20 06:11