smartcard_pack.c

 
#include <freerdp/config.h>
 
#include <winpr/crt.h>
#include <winpr/print.h>
 
#include <freerdp/channels/scard.h>
#include <freerdp/utils/smartcard_pack.h>
#include "smartcard_pack.h"
 
#include <freerdp/log.h>
#define SCARD_TAG FREERDP_TAG("scard.pack")
 
static const DWORD g_LogLevel = WLOG_DEBUG;
 
static wLog* scard_log(void)
{
  static wLog* log = nullptr;
  if (!log)
    log = WLog_Get(SCARD_TAG);
  return log;
}
 
#define smartcard_unpack_redir_scard_context(log, s, context, index, ndr)                  \
  smartcard_unpack_redir_scard_context_((log), (s), (context), (index), (ndr), __FILE__, \
                                        __func__, __LINE__)
#define smartcard_unpack_redir_scard_handle(log, s, context, index)                          \
  smartcard_unpack_redir_scard_handle_((log), (s), (context), (index), __FILE__, __func__, \
                                       __LINE__)
 
static LONG smartcard_unpack_redir_scard_context_(wLog* log, wStream* s,
                                                  REDIR_SCARDCONTEXT* context, UINT32* index,
                                                  UINT32* ppbContextNdrPtr, const char* file,
                                                  const char* function, size_t line);
static LONG smartcard_pack_redir_scard_context(wLog* log, wStream* s,
                                               const REDIR_SCARDCONTEXT* context, DWORD* index);
static LONG smartcard_unpack_redir_scard_handle_(wLog* log, wStream* s, REDIR_SCARDHANDLE* handle,
                                                 UINT32* index, const char* file,
                                                 const char* function, size_t line);
static LONG smartcard_pack_redir_scard_handle(wLog* log, wStream* s,
                                              const REDIR_SCARDHANDLE* handle, DWORD* index);
static LONG smartcard_unpack_redir_scard_context_ref(wLog* log, wStream* s, UINT32 pbContextNdrPtr,
                                                     REDIR_SCARDCONTEXT* context);
static LONG smartcard_pack_redir_scard_context_ref(wLog* log, wStream* s,
                                                   const REDIR_SCARDCONTEXT* context);
 
static LONG smartcard_unpack_redir_scard_handle_ref(wLog* log, wStream* s,
                                                    REDIR_SCARDHANDLE* handle);
static LONG smartcard_pack_redir_scard_handle_ref(wLog* log, wStream* s,
                                                  const REDIR_SCARDHANDLE* handle);
 
typedef enum
{
  NDR_PTR_FULL,
  NDR_PTR_SIMPLE,
  NDR_PTR_FIXED
} ndr_ptr_t;
 
/* Reads a NDR pointer and checks if the value read has the expected relative
 * addressing */
#define smartcard_ndr_pointer_read(log, s, index, ptr) \
  smartcard_ndr_pointer_read_((log), (s), (index), (ptr), __FILE__, __func__, __LINE__)
static BOOL smartcard_ndr_pointer_read_(wLog* log, wStream* s, UINT32* index, UINT32* ptr,
                                        const char* file, const char* fkt, size_t line)
{
  const UINT32 expect = 0x20000 + (*index) * 4;
  UINT32 ndrPtr = 0;
  WINPR_UNUSED(file);
  if (!s)
    return FALSE;
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return FALSE;
 
  Stream_Read_UINT32(s, ndrPtr); /* mszGroupsNdrPtr (4 bytes) */
  if (ptr)
    *ptr = ndrPtr;
  if (expect != ndrPtr)
  {
    /* Allow nullptr pointer if we read the result */
    if (ptr && (ndrPtr == 0))
      return TRUE;
    WLog_Print(log, WLOG_WARN,
               "[%s:%" PRIuz "] Read context pointer 0x%08" PRIx32 ", expected 0x%08" PRIx32,
               fkt, line, ndrPtr, expect);
    return FALSE;
  }
 
  (*index) = (*index) + 1;
  return TRUE;
}
 
static LONG smartcard_ndr_read_ex(wLog* log, wStream* s, BYTE** data, size_t min,
                                  size_t elementSize, const ndr_ptr_t type, size_t* plen)
{
  size_t len = 0;
  size_t offset = 0;
  size_t len2 = 0;
  void* r = nullptr;
  size_t required = 0;
 
  *data = nullptr;
  if (plen)
    *plen = 0;
 
  switch (type)
  {
    case NDR_PTR_FULL:
      required = 12;
      break;
    case NDR_PTR_SIMPLE:
      required = 4;
      break;
    case NDR_PTR_FIXED:
      required = min;
      break;
    default:
      return STATUS_INVALID_PARAMETER;
  }
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, required))
    return STATUS_BUFFER_TOO_SMALL;
 
  switch (type)
  {
    case NDR_PTR_FULL:
      Stream_Read_UINT32(s, len);
      Stream_Read_UINT32(s, offset);
      Stream_Read_UINT32(s, len2);
      if (len != offset + len2)
      {
        WLog_Print(log, WLOG_ERROR,
                   "Invalid data when reading full NDR pointer: total=%" PRIuz
                   ", offset=%" PRIuz ", remaining=%" PRIuz,
                   len, offset, len2);
        return STATUS_BUFFER_TOO_SMALL;
      }
      break;
    case NDR_PTR_SIMPLE:
      Stream_Read_UINT32(s, len);
 
      if ((len != min) && (min > 0))
      {
        WLog_Print(log, WLOG_ERROR,
                   "Invalid data when reading simple NDR pointer: total=%" PRIuz
                   ", expected=%" PRIuz,
                   len, min);
        return STATUS_BUFFER_TOO_SMALL;
      }
      break;
    case NDR_PTR_FIXED:
      len = (UINT32)min;
      break;
    default:
      return STATUS_INVALID_PARAMETER;
  }
 
  if (min > len)
  {
    WLog_Print(log, WLOG_ERROR,
               "Invalid length read from NDR pointer, minimum %" PRIuz ", got %" PRIuz, min,
               len);
    return STATUS_DATA_ERROR;
  }
 
  if (len > SIZE_MAX / 2)
    return STATUS_BUFFER_TOO_SMALL;
 
  if (!Stream_CheckAndLogRequiredLengthOfSizeWLog(log, s, len, elementSize))
    return STATUS_BUFFER_TOO_SMALL;
 
  len *= elementSize;
 
  /* Ensure proper '\0' termination for all kinds of unicode strings
   * as we do not know if the data from the wire contains one.
   */
  r = calloc(len + sizeof(WCHAR), sizeof(CHAR));
  if (!r)
    return SCARD_E_NO_MEMORY;
  Stream_Read(s, r, len);
  const LONG pad = smartcard_unpack_read_size_align(s, len, 4);
  if (pad < 0)
  {
    free(r);
    return STATUS_INVALID_PARAMETER;
  }
  *data = r;
  if (plen)
    *plen = len; /* payload bytes only, excluding the NDR alignment padding */
  return STATUS_SUCCESS;
}
 
static LONG smartcard_ndr_read(wLog* log, wStream* s, BYTE** data, size_t min, size_t elementSize,
                               const ndr_ptr_t type)
{
  return smartcard_ndr_read_ex(log, s, data, min, elementSize, type, nullptr);
}
 
static BOOL smartcard_ndr_pointer_write(wStream* s, UINT32* index, DWORD length)
{
  const UINT32 ndrPtr = 0x20000 + (*index) * 4;
 
  if (!s)
    return FALSE;
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return FALSE;
 
  if (length > 0)
  {
    Stream_Write_UINT32(s, ndrPtr); /* mszGroupsNdrPtr (4 bytes) */
    (*index) = (*index) + 1;
  }
  else
    Stream_Write_UINT32(s, 0);
  return TRUE;
}
 
static LONG smartcard_ndr_write(wStream* s, const BYTE* data, UINT32 size, UINT32 elementSize,
                                const ndr_ptr_t type)
{
  const UINT32 offset = 0;
  const UINT32 len = size;
  const UINT32 dataLen = size * elementSize;
  size_t required = 0;
 
  if (size == 0)
    return SCARD_S_SUCCESS;
 
  switch (type)
  {
    case NDR_PTR_FULL:
      required = 12;
      break;
    case NDR_PTR_SIMPLE:
      required = 4;
      break;
    case NDR_PTR_FIXED:
      required = 0;
      break;
    default:
      return SCARD_E_INVALID_PARAMETER;
  }
 
  if (!Stream_EnsureRemainingCapacity(s, required + dataLen + 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  switch (type)
  {
    case NDR_PTR_FULL:
      Stream_Write_UINT32(s, len);
      Stream_Write_UINT32(s, offset);
      Stream_Write_UINT32(s, len);
      break;
    case NDR_PTR_SIMPLE:
      Stream_Write_UINT32(s, len);
      break;
    case NDR_PTR_FIXED:
      break;
    default:
      return SCARD_E_INVALID_PARAMETER;
  }
 
  if (data)
    Stream_Write(s, data, dataLen);
  else
    Stream_Zero(s, dataLen);
  return smartcard_pack_write_size_align(s, dataLen, 4);
}
 
static LONG smartcard_ndr_write_state(wStream* s, const ReaderState_Return* data, UINT32 size,
                                      const ndr_ptr_t type)
{
  union
  {
    const ReaderState_Return* reader;
    const BYTE* data;
  } cnv;
 
  WINPR_ASSERT(data || (size == 0));
  cnv.reader = data;
  return smartcard_ndr_write(s, cnv.data, size, sizeof(ReaderState_Return), type);
}
 
static LONG smartcard_ndr_read_state(wLog* log, wStream* s, ReaderState_Return** data, size_t min,
                                     const ndr_ptr_t type)
{
  union
  {
    ReaderState_Return** ppc;
    BYTE** ppv;
  } u;
  u.ppc = data;
  return smartcard_ndr_read(log, s, u.ppv, min, sizeof(ReaderState_Return), type);
}
 
static LONG smartcard_ndr_read_atrmask(wLog* log, wStream* s, LocateCards_ATRMask** data,
                                       size_t min, const ndr_ptr_t type)
{
  union
  {
    LocateCards_ATRMask** ppc;
    BYTE** ppv;
  } u;
  u.ppc = data;
  const LONG status = smartcard_ndr_read(log, s, u.ppv, min, sizeof(LocateCards_ATRMask), type);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  /* [MS-RDPESC] 2.2.1.5: cbAtr is range(0..36), the number of valid bytes in the fixed
   * rgbAtr/rgbMask arrays. A larger value walks past them when the mask is compared byte
   * by byte, so reject it here rather than trusting the wire value. */
  LocateCards_ATRMask* masks = *data;
  for (size_t x = 0; x < min; x++)
  {
    const UINT32 val = winpr_Data_Get_UINT32(&masks[x].cbAtr);
    if (val > ARRAYSIZE(masks[x].rgbAtr))
    {
      WLog_Print(log, WLOG_ERROR,
                 "LocateCards_ATRMask[%" PRIuz "]::cbAtr %" PRIu32 " exceeds %" PRIuz, x, val,
                 (size_t)ARRAYSIZE(masks[x].rgbAtr));
      free(*data);
      *data = nullptr;
      return STATUS_DATA_ERROR;
    }
  }
  return SCARD_S_SUCCESS;
}
 
static LONG smartcard_ndr_read_fixed_string_a(wLog* log, wStream* s, CHAR** data, size_t min,
                                              const ndr_ptr_t type)
{
  union
  {
    CHAR** ppc;
    BYTE** ppv;
  } u;
  u.ppc = data;
  return smartcard_ndr_read(log, s, u.ppv, min, sizeof(CHAR), type);
}
 
static LONG smartcard_ndr_read_fixed_string_w(wLog* log, wStream* s, WCHAR** data, size_t min,
                                              const ndr_ptr_t type)
{
  union
  {
    WCHAR** ppc;
    BYTE** ppv;
  } u;
  u.ppc = data;
  return smartcard_ndr_read(log, s, u.ppv, min, sizeof(WCHAR), type);
}
 
static LONG smartcard_ndr_read_a(wLog* log, wStream* s, CHAR** data, const ndr_ptr_t type)
{
  union
  {
    CHAR** ppc;
    BYTE** ppv;
  } u;
  u.ppc = data;
  return smartcard_ndr_read(log, s, u.ppv, 0, sizeof(CHAR), type);
}
 
static LONG smartcard_ndr_read_w(wLog* log, wStream* s, WCHAR** data, const ndr_ptr_t type)
{
  union
  {
    WCHAR** ppc;
    BYTE** ppv;
  } u;
  u.ppc = data;
  return smartcard_ndr_read(log, s, u.ppv, 0, sizeof(WCHAR), type);
}
 
static LONG smartcard_ndr_write_w(wStream* s, const WCHAR* data, UINT32 size, const ndr_ptr_t type)
{
  union
  {
    const WCHAR* wz;
    const BYTE* bp;
  } cnv;
  cnv.wz = data;
  return smartcard_ndr_write(s, cnv.bp, size, sizeof(WCHAR), type);
}
 
static LONG smartcard_ndr_write_a(wStream* s, const CHAR* data, UINT32 size, const ndr_ptr_t type)
{
  union
  {
    const CHAR* sz;
    const BYTE* bp;
  } cnv;
  cnv.sz = data;
  return smartcard_ndr_write(s, cnv.bp, size, sizeof(CHAR), type);
}
 
static LONG smartcard_ndr_read_u(wLog* log, wStream* s, UUID** data)
{
  union
  {
    UUID** ppc;
    BYTE** ppv;
  } u;
  u.ppc = data;
  return smartcard_ndr_read(log, s, u.ppv, 1, sizeof(UUID), NDR_PTR_FIXED);
}
 
static char* smartcard_convert_string_list(const void* in, size_t bytes, BOOL unicode)
{
  size_t length = 0;
  union
  {
    const void* pv;
    const char* sz;
    const WCHAR* wz;
  } string;
  char* mszA = nullptr;
 
  string.pv = in;
 
  if (bytes < 1)
    return nullptr;
 
  if (in == nullptr)
    return nullptr;
 
  if (unicode)
  {
    mszA = ConvertMszWCharNToUtf8Alloc(string.wz, bytes / sizeof(WCHAR), &length);
    if (!mszA)
      return nullptr;
  }
  else
  {
    mszA = (char*)calloc(bytes, sizeof(char));
    if (!mszA)
      return nullptr;
    CopyMemory(mszA, string.sz, bytes - 1);
    length = bytes;
  }
 
  if (length < 1)
  {
    free(mszA);
    return nullptr;
  }
  for (size_t index = 0; index < length - 1; index++)
  {
    if (mszA[index] == '\0')
      mszA[index] = ',';
  }
 
  return mszA;
}
 
WINPR_ATTR_MALLOC(free, 1)
static char* smartcard_create_msz_dump(const char* msz, size_t len)
{
  size_t bufferLen = len;
  char* buffer = calloc(len + 1, 1);
  if (!buffer)
    return nullptr;
 
  char* buf = buffer;
  const char* cur = msz;
 
  while ((len > 0) && cur && cur[0] != '\0' && (bufferLen > 0))
  {
    size_t clen = strnlen(cur, len);
    int rc = _snprintf(buf, bufferLen, "%s", cur);
    bufferLen -= (size_t)rc;
    buf += rc;
 
    cur += clen;
  }
 
  return buffer;
}
 
static void smartcard_msz_dump(wLog* log, DWORD level, const char* prefix, const void* data,
                               size_t len, UINT32 wchar)
{
  if (!WLog_IsLevelActive(log, level))
    return;
 
  char* tmp = nullptr;
  const char* msz = WINPR_CXX_COMPAT_CAST(const char*, data);
  size_t mszlen = len;
  if (wchar)
  {
    tmp = ConvertMszWCharNToUtf8Alloc(data, len, &mszlen);
    msz = tmp;
  }
 
  char* array = smartcard_create_msz_dump(msz, mszlen);
  WLog_Print(log, level, "%s%s", prefix, array);
  free(array);
  free(tmp);
}
 
WINPR_ATTR_MALLOC(free, 1)
static char* smartcard_create_array_dump(const void* pd, size_t len)
{
  const BYTE* data = pd;
  int rc = 0;
 
  size_t bufferLen = len * 4;
  if (bufferLen < 32)
    bufferLen = 32;
  char* buffer = calloc(bufferLen + 1, 1);
  if (!buffer)
    return nullptr;
  char* start = buffer;
 
  WINPR_ASSERT(buffer || (bufferLen == 0));
 
  if (!data && (len > 0))
  {
    (void)_snprintf(buffer, bufferLen, "{ nullptr [%" PRIuz "] }", len);
    goto fail;
  }
 
  rc = _snprintf(buffer, bufferLen, "{ ");
  if ((rc < 0) || ((size_t)rc >= bufferLen))
    goto fail;
  buffer += rc;
  bufferLen -= (size_t)rc;
 
  for (size_t x = 0; x < len; x++)
  {
    rc = _snprintf(buffer, bufferLen, "%02X", data[x]);
    if ((rc < 0) || ((size_t)rc >= bufferLen))
      goto fail;
    buffer += rc;
    bufferLen -= (size_t)rc;
  }
 
  rc = _snprintf(buffer, bufferLen, " }");
  if ((rc < 0) || ((size_t)rc >= bufferLen))
    goto fail;
 
fail:
  return start;
}
 
WINPR_ATTR_FORMAT_ARG(3, 7)
static void smartcard_dump_array(wLog* log, DWORD level, WINPR_FORMAT_ARG const char* prefix,
                                 const char* postfix, const void* data, size_t len, ...)
{
  if (!WLog_IsLevelActive(log, level))
    return;
 
  char* buffer = smartcard_create_array_dump(data, len);
 
  char* fprefix = nullptr;
  size_t flen = 0;
  va_list ap = WINPR_C_ARRAY_INIT;
  va_start(ap, len);
  winpr_vasprintf(&fprefix, &flen, prefix, ap);
  va_end(ap);
  WLog_Print(log, level, "%s%s%s", fprefix, buffer, postfix);
  free(buffer);
  free(fprefix);
}
 
static void smartcard_log_redir_handle(wLog* log, const REDIR_SCARDHANDLE* pHandle)
{
  WINPR_ASSERT(pHandle);
  smartcard_dump_array(log, g_LogLevel, "handle: ", "", pHandle->pbHandle, pHandle->cbHandle);
}
 
static void smartcard_log_context(wLog* log, const REDIR_SCARDCONTEXT* phContext)
{
  WINPR_ASSERT(phContext);
  smartcard_dump_array(log, g_LogLevel, "hContext: ", "", phContext->pbContext,
                       phContext->cbContext);
}
 
static void smartcard_trace_context_and_string_call_a(wLog* log, const char* name,
                                                      const REDIR_SCARDCONTEXT* phContext,
                                                      const CHAR* sz)
{
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "%s {", name);
  smartcard_log_context(log, phContext);
  WLog_Print(log, g_LogLevel, "  sz=%s", sz);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_context_and_string_call_w(wLog* log, const char* name,
                                                      const REDIR_SCARDCONTEXT* phContext,
                                                      const WCHAR* sz)
{
  char* tmp = nullptr;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  if (sz)
    tmp = ConvertWCharToUtf8Alloc(sz, nullptr);
 
  WLog_Print(log, g_LogLevel, "%s {", name);
  smartcard_log_context(log, phContext);
  WLog_Print(log, g_LogLevel, "  sz=%s", tmp);
  WLog_Print(log, g_LogLevel, "}");
  free(tmp);
}
 
static void smartcard_trace_context_call(wLog* log, const Context_Call* call, const char* name)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "%s_Call {", name);
  smartcard_log_context(log, &call->handles.hContext);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_list_reader_groups_call(wLog* log, const ListReaderGroups_Call* call,
                                                    BOOL unicode)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "ListReaderGroups%s_Call {", unicode ? "W" : "A");
  smartcard_log_context(log, &call->handles.hContext);
 
  WLog_Print(log, g_LogLevel, "fmszGroupsIsNULL: %" PRId32 " cchGroups: 0x%08" PRIx32,
             call->fmszGroupsIsNULL, call->cchGroups);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void dump_reader_states_return(wLog* log, const ReaderState_Return* rgReaderStates,
                                      UINT32 cReaders)
{
  WINPR_ASSERT(rgReaderStates || (cReaders == 0));
  for (UINT32 index = 0; index < cReaders; index++)
  {
    const ReaderState_Return* readerState = &rgReaderStates[index];
    char* szCurrentState = SCardGetReaderStateString(readerState->dwCurrentState);
    char* szEventState = SCardGetReaderStateString(readerState->dwEventState);
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: dwCurrentState: %s (0x%08" PRIX32 ")", index,
               szCurrentState, readerState->dwCurrentState);
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: dwEventState: %s (0x%08" PRIX32 ")", index,
               szEventState, readerState->dwEventState);
    free(szCurrentState);
    free(szEventState);
 
    smartcard_dump_array(log, g_LogLevel, "\t[%" PRIu32 "]: cbAttr: %" PRIu32 " { ", " }",
                         readerState->rgbAtr, readerState->cbAtr, index, readerState->cbAtr);
  }
}
 
static void dump_reader_states_a(wLog* log, const SCARD_READERSTATEA* rgReaderStates,
                                 UINT32 cReaders)
{
  WINPR_ASSERT(rgReaderStates || (cReaders == 0));
  for (UINT32 index = 0; index < cReaders; index++)
  {
    const SCARD_READERSTATEA* readerState = &rgReaderStates[index];
 
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: szReader: %s cbAtr: %" PRIu32 "", index,
               readerState->szReader, readerState->cbAtr);
    char* szCurrentState = SCardGetReaderStateString(readerState->dwCurrentState);
    char* szEventState = SCardGetReaderStateString(readerState->dwEventState);
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: dwCurrentState: %s (0x%08" PRIX32 ")", index,
               szCurrentState, readerState->dwCurrentState);
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: dwEventState: %s (0x%08" PRIX32 ")", index,
               szEventState, readerState->dwEventState);
    free(szCurrentState);
    free(szEventState);
 
    smartcard_dump_array(log, g_LogLevel, "\t[%" PRIu32 "]: cbAttr: %" PRIu32 " { ", " }",
                         readerState->rgbAtr, readerState->cbAtr, index, readerState->cbAtr);
  }
}
 
static void dump_reader_states_w(wLog* log, const SCARD_READERSTATEW* rgReaderStates,
                                 UINT32 cReaders)
{
  WINPR_ASSERT(rgReaderStates || (cReaders == 0));
  for (UINT32 index = 0; index < cReaders; index++)
  {
    const SCARD_READERSTATEW* readerState = &rgReaderStates[index];
    char* buffer = ConvertWCharToUtf8Alloc(readerState->szReader, nullptr);
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: szReader: %s cbAtr: %" PRIu32 "", index,
               buffer, readerState->cbAtr);
    free(buffer);
    char* szCurrentState = SCardGetReaderStateString(readerState->dwCurrentState);
    char* szEventState = SCardGetReaderStateString(readerState->dwEventState);
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: dwCurrentState: %s (0x%08" PRIX32 ")", index,
               szCurrentState, readerState->dwCurrentState);
    WLog_Print(log, g_LogLevel, "\t[%" PRIu32 "]: dwEventState: %s (0x%08" PRIX32 ")", index,
               szEventState, readerState->dwEventState);
    free(szCurrentState);
    free(szEventState);
 
    smartcard_dump_array(log, g_LogLevel, "\t[%" PRIu32 "]: cbAttr: %" PRIu32 " { ", " }",
                         readerState->rgbAtr, readerState->cbAtr, index, readerState->cbAtr);
  }
}
 
static void smartcard_trace_get_status_change_w_call(wLog* log, const GetStatusChangeW_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetStatusChangeW_Call {");
  smartcard_log_context(log, &call->handles.hContext);
 
  WLog_Print(log, g_LogLevel, "dwTimeOut: 0x%08" PRIX32 " cReaders: %" PRIu32 "", call->dwTimeOut,
             call->cReaders);
 
  dump_reader_states_w(log, call->rgReaderStates, call->cReaders);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_list_reader_groups_return(wLog* log, const ListReaderGroups_Return* ret,
                                                      BOOL unicode)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  char* mszA = smartcard_convert_string_list(ret->msz, ret->cBytes, unicode);
 
  WLog_Print(log, g_LogLevel, "ListReaderGroups%s_Return {", unicode ? "W" : "A");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIx32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  cBytes: %" PRIu32 " msz: %s", ret->cBytes, mszA);
  WLog_Print(log, g_LogLevel, "}");
  free(mszA);
}
 
static void smartcard_trace_list_readers_call(wLog* log, const ListReaders_Call* call, BOOL unicode)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  char* mszGroupsA = smartcard_convert_string_list(call->mszGroups, call->cBytes, unicode);
 
  WLog_Print(log, g_LogLevel, "ListReaders%s_Call {", unicode ? "W" : "A");
  smartcard_log_context(log, &call->handles.hContext);
 
  WLog_Print(log, g_LogLevel,
             "cBytes: %" PRIu32 " mszGroups: %s fmszReadersIsNULL: %" PRId32
             " cchReaders: 0x%08" PRIX32 "",
             call->cBytes, mszGroupsA, call->fmszReadersIsNULL, call->cchReaders);
  WLog_Print(log, g_LogLevel, "}");
 
  free(mszGroupsA);
}
 
static void smartcard_trace_locate_cards_by_atr_a_call(wLog* log,
                                                       const LocateCardsByATRA_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "LocateCardsByATRA_Call {");
  smartcard_log_context(log, &call->handles.hContext);
 
  dump_reader_states_a(log, call->rgReaderStates, call->cReaders);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_locate_cards_a_call(wLog* log, const LocateCardsA_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "LocateCardsA_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  WLog_Print(log, g_LogLevel, " cBytes=%" PRIu32, call->cBytes);
  smartcard_msz_dump(log, g_LogLevel, " mszCards=", call->mszCards, call->cBytes, FALSE);
  WLog_Print(log, g_LogLevel, " cReaders=%" PRIu32, call->cReaders);
  dump_reader_states_a(log, call->rgReaderStates, call->cReaders);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_locate_cards_return(wLog* log, const LocateCards_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "LocateCards_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
 
  if (ret->ReturnCode == SCARD_S_SUCCESS)
  {
    WLog_Print(log, g_LogLevel, "  cReaders=%" PRIu32, ret->cReaders);
  }
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_get_reader_icon_return(wLog* log, const GetReaderIcon_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetReaderIcon_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
 
  if (ret->ReturnCode == SCARD_S_SUCCESS)
  {
    WLog_Print(log, g_LogLevel, "  cbDataLen=%" PRIu32, ret->cbDataLen);
  }
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_get_transmit_count_return(wLog* log, const GetTransmitCount_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetTransmitCount_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
 
  WLog_Print(log, g_LogLevel, "  cTransmitCount=%" PRIu32, ret->cTransmitCount);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_read_cache_return(wLog* log, const ReadCache_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "ReadCache_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
 
  if (ret->ReturnCode == SCARD_S_SUCCESS)
  {
    WLog_Print(log, g_LogLevel, " cbDataLen=%" PRIu32, ret->cbDataLen);
    smartcard_dump_array(log, g_LogLevel, "  cbData: ", "", ret->pbData, ret->cbDataLen);
  }
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_locate_cards_w_call(wLog* log, const LocateCardsW_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "LocateCardsW_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  WLog_Print(log, g_LogLevel, " cBytes=%" PRIu32, call->cBytes);
  smartcard_msz_dump(log, g_LogLevel, " sz2=", call->mszCards, call->cBytes, TRUE);
  WLog_Print(log, g_LogLevel, " cReaders=%" PRIu32, call->cReaders);
  dump_reader_states_w(log, call->rgReaderStates, call->cReaders);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_list_readers_return(wLog* log, const ListReaders_Return* ret,
                                                BOOL unicode)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "ListReaders%s_Return {", unicode ? "W" : "A");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
 
  if (ret->ReturnCode != SCARD_S_SUCCESS)
  {
    WLog_Print(log, g_LogLevel, "}");
    return;
  }
 
  char* mszA = smartcard_convert_string_list(ret->msz, ret->cBytes, unicode);
 
  WLog_Print(log, g_LogLevel, "  cBytes: %" PRIu32 " msz: %s", ret->cBytes, mszA);
  WLog_Print(log, g_LogLevel, "}");
  free(mszA);
}
 
static void smartcard_trace_get_status_change_return(wLog* log, const GetStatusChange_Return* ret,
                                                     BOOL unicode)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetStatusChange%s_Return {", unicode ? "W" : "A");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  cReaders: %" PRIu32 "", ret->cReaders);
 
  dump_reader_states_return(log, ret->rgReaderStates, ret->cReaders);
 
  if (!ret->rgReaderStates && (ret->cReaders > 0))
  {
    WLog_Print(log, g_LogLevel, "    [INVALID STATE] rgReaderStates=nullptr, cReaders=%" PRIu32,
               ret->cReaders);
  }
  else if (ret->ReturnCode != SCARD_S_SUCCESS)
  {
    WLog_Print(log, g_LogLevel, "    [INVALID RETURN] rgReaderStates, cReaders=%" PRIu32,
               ret->cReaders);
  }
  else
  {
    for (UINT32 index = 0; index < ret->cReaders; index++)
    {
      const ReaderState_Return* rgReaderState = &(ret->rgReaderStates[index]);
      char* szCurrentState = SCardGetReaderStateString(rgReaderState->dwCurrentState);
      char* szEventState = SCardGetReaderStateString(rgReaderState->dwEventState);
      WLog_Print(log, g_LogLevel, "    [%" PRIu32 "]: dwCurrentState: %s (0x%08" PRIX32 ")",
                 index, szCurrentState, rgReaderState->dwCurrentState);
      WLog_Print(log, g_LogLevel, "    [%" PRIu32 "]: dwEventState: %s (0x%08" PRIX32 ")",
                 index, szEventState, rgReaderState->dwEventState);
      smartcard_dump_array(
          log, g_LogLevel, "    [%" PRIu32 "]: cbAtr: %" PRIu32 " rgbAtr: ", "",
          rgReaderState->rgbAtr, rgReaderState->cbAtr, index, rgReaderState->cbAtr);
      free(szCurrentState);
      free(szEventState);
    }
  }
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_context_and_two_strings_a_call(wLog* log,
                                                           const ContextAndTwoStringA_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "ContextAndTwoStringW_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  WLog_Print(log, g_LogLevel, " sz1=%s", call->sz1);
  WLog_Print(log, g_LogLevel, " sz2=%s", call->sz2);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_context_and_two_strings_w_call(wLog* log,
                                                           const ContextAndTwoStringW_Call* call)
{
  WINPR_ASSERT(call);
  char sz1[1024] = WINPR_C_ARRAY_INIT;
  char sz2[1024] = WINPR_C_ARRAY_INIT;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
  if (call->sz1)
    (void)ConvertWCharToUtf8(call->sz1, sz1, ARRAYSIZE(sz1));
  if (call->sz2)
    (void)ConvertWCharToUtf8(call->sz2, sz2, ARRAYSIZE(sz2));
 
  WLog_Print(log, g_LogLevel, "ContextAndTwoStringW_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  WLog_Print(log, g_LogLevel, " sz1=%s", sz1);
  WLog_Print(log, g_LogLevel, " sz2=%s", sz2);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_get_transmit_count_call(wLog* log, const GetTransmitCount_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetTransmitCount_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_write_cache_a_call(wLog* log, const WriteCacheA_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "WriteCacheA_Call {");
 
  WLog_Print(log, g_LogLevel, "  szLookupName=%s", call->szLookupName);
 
  smartcard_log_context(log, &call->Common.handles.hContext);
  smartcard_dump_array(log, g_LogLevel, "..CardIdentifier=", "", call->Common.CardIdentifier,
                       sizeof(UUID));
  WLog_Print(log, g_LogLevel, "  FreshnessCounter=%" PRIu32, call->Common.FreshnessCounter);
  WLog_Print(log, g_LogLevel, "  cbDataLen=%" PRIu32, call->Common.cbDataLen);
  smartcard_dump_array(log, g_LogLevel, "  pbData=", "", call->Common.pbData,
                       call->Common.cbDataLen);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_write_cache_w_call(wLog* log, const WriteCacheW_Call* call)
{
  WINPR_ASSERT(call);
  char tmp[1024] = WINPR_C_ARRAY_INIT;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "WriteCacheW_Call {");
 
  if (call->szLookupName)
    (void)ConvertWCharToUtf8(call->szLookupName, tmp, ARRAYSIZE(tmp));
  WLog_Print(log, g_LogLevel, "  szLookupName=%s", tmp);
 
  smartcard_log_context(log, &call->Common.handles.hContext);
  smartcard_dump_array(log, g_LogLevel, "..CardIdentifier=", "", call->Common.CardIdentifier,
                       sizeof(UUID));
  WLog_Print(log, g_LogLevel, "  FreshnessCounter=%" PRIu32, call->Common.FreshnessCounter);
  WLog_Print(log, g_LogLevel, "  cbDataLen=%" PRIu32, call->Common.cbDataLen);
  smartcard_dump_array(log, g_LogLevel, "  pbData=", "", call->Common.pbData,
                       call->Common.cbDataLen);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_read_cache_a_call(wLog* log, const ReadCacheA_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "ReadCacheA_Call {");
 
  WLog_Print(log, g_LogLevel, "  szLookupName=%s", call->szLookupName);
  smartcard_log_context(log, &call->Common.handles.hContext);
  smartcard_dump_array(log, g_LogLevel, "..CardIdentifier=", "", call->Common.CardIdentifier,
                       sizeof(UUID));
  WLog_Print(log, g_LogLevel, "  FreshnessCounter=%" PRIu32, call->Common.FreshnessCounter);
  WLog_Print(log, g_LogLevel, "  fPbDataIsNULL=%" PRId32, call->Common.fPbDataIsNULL);
  WLog_Print(log, g_LogLevel, "  cbDataLen=%" PRIu32, call->Common.cbDataLen);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_read_cache_w_call(wLog* log, const ReadCacheW_Call* call)
{
  WINPR_ASSERT(call);
  char tmp[1024] = WINPR_C_ARRAY_INIT;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "ReadCacheW_Call {");
  if (call->szLookupName)
    (void)ConvertWCharToUtf8(call->szLookupName, tmp, ARRAYSIZE(tmp));
  WLog_Print(log, g_LogLevel, "  szLookupName=%s", tmp);
 
  smartcard_log_context(log, &call->Common.handles.hContext);
  smartcard_dump_array(log, g_LogLevel, "..CardIdentifier=", "", call->Common.CardIdentifier,
                       sizeof(UUID));
  WLog_Print(log, g_LogLevel, "  FreshnessCounter=%" PRIu32, call->Common.FreshnessCounter);
  WLog_Print(log, g_LogLevel, "  fPbDataIsNULL=%" PRId32, call->Common.fPbDataIsNULL);
  WLog_Print(log, g_LogLevel, "  cbDataLen=%" PRIu32, call->Common.cbDataLen);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_transmit_call(wLog* log, const Transmit_Call* call)
{
  WINPR_ASSERT(call);
  UINT32 cbExtraBytes = 0;
  BYTE* pbExtraBytes = nullptr;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Transmit_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
 
  if (call->pioSendPci)
  {
    cbExtraBytes = (UINT32)(call->pioSendPci->cbPciLength - sizeof(SCARD_IO_REQUEST));
    pbExtraBytes = &((BYTE*)call->pioSendPci)[sizeof(SCARD_IO_REQUEST)];
    WLog_Print(log, g_LogLevel, "pioSendPci: dwProtocol: %" PRIu32 " cbExtraBytes: %" PRIu32 "",
               call->pioSendPci->dwProtocol, cbExtraBytes);
 
    if (cbExtraBytes)
    {
      smartcard_dump_array(log, g_LogLevel, "pbExtraBytes: ", "", pbExtraBytes, cbExtraBytes);
    }
  }
  else
  {
    WLog_Print(log, g_LogLevel, "pioSendPci: null");
  }
 
  WLog_Print(log, g_LogLevel, "cbSendLength: %" PRIu32 "", call->cbSendLength);
 
  if (call->pbSendBuffer)
  {
    smartcard_dump_array(log, g_LogLevel, "pbSendBuffer: ", "", call->pbSendBuffer,
                         call->cbSendLength);
  }
  else
  {
    WLog_Print(log, g_LogLevel, "pbSendBuffer: null");
  }
 
  if (call->pioRecvPci)
  {
    cbExtraBytes = (UINT32)(call->pioRecvPci->cbPciLength - sizeof(SCARD_IO_REQUEST));
    pbExtraBytes = &((BYTE*)call->pioRecvPci)[sizeof(SCARD_IO_REQUEST)];
    WLog_Print(log, g_LogLevel, "pioRecvPci: dwProtocol: %" PRIu32 " cbExtraBytes: %" PRIu32 "",
               call->pioRecvPci->dwProtocol, cbExtraBytes);
 
    if (cbExtraBytes)
    {
      smartcard_dump_array(log, g_LogLevel, "pbExtraBytes: ", "", pbExtraBytes, cbExtraBytes);
    }
  }
  else
  {
    WLog_Print(log, g_LogLevel, "pioRecvPci: null");
  }
 
  WLog_Print(log, g_LogLevel, "fpbRecvBufferIsNULL: %" PRId32 " cbRecvLength: %" PRIu32 "",
             call->fpbRecvBufferIsNULL, call->cbRecvLength);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_locate_cards_by_atr_w_call(wLog* log,
                                                       const LocateCardsByATRW_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "LocateCardsByATRW_Call {");
  smartcard_log_context(log, &call->handles.hContext);
 
  dump_reader_states_w(log, call->rgReaderStates, call->cReaders);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_transmit_return(wLog* log, const Transmit_Return* ret)
{
  WINPR_ASSERT(ret);
  UINT32 cbExtraBytes = 0;
  BYTE* pbExtraBytes = nullptr;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Transmit_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
 
  if (ret->pioRecvPci)
  {
    cbExtraBytes = (UINT32)(ret->pioRecvPci->cbPciLength - sizeof(SCARD_IO_REQUEST));
    pbExtraBytes = &((BYTE*)ret->pioRecvPci)[sizeof(SCARD_IO_REQUEST)];
    WLog_Print(log, g_LogLevel,
               "  pioRecvPci: dwProtocol: %" PRIu32 " cbExtraBytes: %" PRIu32 "",
               ret->pioRecvPci->dwProtocol, cbExtraBytes);
 
    if (cbExtraBytes)
    {
      smartcard_dump_array(log, g_LogLevel, "  pbExtraBytes: ", "", pbExtraBytes,
                           cbExtraBytes);
    }
  }
  else
  {
    WLog_Print(log, g_LogLevel, "  pioRecvPci: null");
  }
 
  WLog_Print(log, g_LogLevel, "  cbRecvLength: %" PRIu32 "", ret->cbRecvLength);
 
  if (ret->pbRecvBuffer)
  {
    smartcard_dump_array(log, g_LogLevel, "  pbRecvBuffer: ", "", ret->pbRecvBuffer,
                         ret->cbRecvLength);
  }
  else
  {
    WLog_Print(log, g_LogLevel, "  pbRecvBuffer: null");
  }
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_control_return(wLog* log, const Control_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Control_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  cbOutBufferSize: %" PRIu32 "", ret->cbOutBufferSize);
 
  if (ret->pvOutBuffer)
  {
    smartcard_dump_array(log, g_LogLevel, "pvOutBuffer: ", "", ret->pvOutBuffer,
                         ret->cbOutBufferSize);
  }
  else
  {
    WLog_Print(log, g_LogLevel, "pvOutBuffer: null");
  }
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_control_call(wLog* log, const Control_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Control_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
 
  WLog_Print(log, g_LogLevel,
             "dwControlCode: 0x%08" PRIX32 " cbInBufferSize: %" PRIu32
             " fpvOutBufferIsNULL: %" PRId32 " cbOutBufferSize: %" PRIu32 "",
             call->dwControlCode, call->cbInBufferSize, call->fpvOutBufferIsNULL,
             call->cbOutBufferSize);
 
  if (call->pvInBuffer)
  {
    smartcard_dump_array(log, WLOG_DEBUG, "pbInBuffer: ", "", call->pvInBuffer,
                         call->cbInBufferSize);
  }
  else
  {
    WLog_Print(log, g_LogLevel, "pvInBuffer: null");
  }
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_set_attrib_call(wLog* log, const SetAttrib_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetAttrib_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
  WLog_Print(log, g_LogLevel, "dwAttrId: 0x%08" PRIX32, call->dwAttrId);
  WLog_Print(log, g_LogLevel, "cbAttrLen: 0x%08" PRIx32, call->cbAttrLen);
  smartcard_dump_array(log, g_LogLevel, "pbAttr: ", "", call->pbAttr, call->cbAttrLen);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_get_attrib_return(wLog* log, const GetAttrib_Return* ret,
                                              DWORD dwAttrId)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetAttrib_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  dwAttrId: %s (0x%08" PRIX32 ") cbAttrLen: 0x%08" PRIX32 "",
             SCardGetAttributeString(dwAttrId), dwAttrId, ret->cbAttrLen);
  smartcard_dump_array(log, g_LogLevel, "  ", "", ret->pbAttr, ret->cbAttrLen);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_get_attrib_call(wLog* log, const GetAttrib_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetAttrib_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
 
  WLog_Print(log, g_LogLevel,
             "dwAttrId: %s (0x%08" PRIX32 ") fpbAttrIsNULL: %" PRId32 " cbAttrLen: 0x%08" PRIX32
             "",
             SCardGetAttributeString(call->dwAttrId), call->dwAttrId, call->fpbAttrIsNULL,
             call->cbAttrLen);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_status_call(wLog* log, const Status_Call* call, BOOL unicode)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Status%s_Call {", unicode ? "W" : "A");
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
 
  WLog_Print(log, g_LogLevel,
             "fmszReaderNamesIsNULL: %" PRId32 " cchReaderLen: %" PRIu32 " cbAtrLen: %" PRIu32 "",
             call->fmszReaderNamesIsNULL, call->cchReaderLen, call->cbAtrLen);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_status_return(wLog* log, const Status_Return* ret, BOOL unicode)
{
  WINPR_ASSERT(ret);
  char* mszReaderNamesA = nullptr;
  DWORD cBytes = 0;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
  cBytes = ret->cBytes;
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cBytes = 0;
  if (cBytes == SCARD_AUTOALLOCATE)
    cBytes = 0;
  mszReaderNamesA = smartcard_convert_string_list(ret->mszReaderNames, cBytes, unicode);
 
  WLog_Print(log, g_LogLevel, "Status%s_Return {", unicode ? "W" : "A");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  dwState: %s (0x%08" PRIX32 ") dwProtocol: %s (0x%08" PRIX32 ")",
             SCardGetCardStateString(ret->dwState), ret->dwState,
             SCardGetProtocolString(ret->dwProtocol), ret->dwProtocol);
 
  WLog_Print(log, g_LogLevel, "  cBytes: %" PRIu32 " mszReaderNames: %s", ret->cBytes,
             mszReaderNamesA);
 
  smartcard_dump_array(log, g_LogLevel, "  cbAtrLen: %" PRIu32 " pbAtr: ", "", ret->pbAtr,
                       ret->cbAtrLen, ret->cbAtrLen);
  WLog_Print(log, g_LogLevel, "}");
  free(mszReaderNamesA);
}
 
static void smartcard_trace_state_return(wLog* log, const State_Return* ret)
{
  WINPR_ASSERT(ret);
  char* state = nullptr;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  state = SCardGetReaderStateString(ret->dwState);
  WLog_Print(log, g_LogLevel, "Reconnect_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  dwState:    %s (0x%08" PRIX32 ")", state, ret->dwState);
  WLog_Print(log, g_LogLevel, "  dwProtocol: %s (0x%08" PRIX32 ")",
             SCardGetProtocolString(ret->dwProtocol), ret->dwProtocol);
  WLog_Print(log, g_LogLevel, "  cbAtrLen:      (0x%08" PRIX32 ")", ret->cbAtrLen);
  smartcard_dump_array(log, g_LogLevel, "  rgAtr:      ", "", ret->rgAtr, sizeof(ret->rgAtr));
  WLog_Print(log, g_LogLevel, "}");
  free(state);
}
 
static void smartcard_trace_reconnect_return(wLog* log, const Reconnect_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Reconnect_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  dwActiveProtocol: %s (0x%08" PRIX32 ")",
             SCardGetProtocolString(ret->dwActiveProtocol), ret->dwActiveProtocol);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_connect_a_call(wLog* log, const ConnectA_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "ConnectA_Call {");
  smartcard_log_context(log, &call->Common.handles.hContext);
 
  WLog_Print(log, g_LogLevel,
             "szReader: %s dwShareMode: %s (0x%08" PRIX32
             ") dwPreferredProtocols: %s (0x%08" PRIX32 ")",
             call->szReader, SCardGetShareModeString(call->Common.dwShareMode),
             call->Common.dwShareMode, SCardGetProtocolString(call->Common.dwPreferredProtocols),
             call->Common.dwPreferredProtocols);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_connect_w_call(wLog* log, const ConnectW_Call* call)
{
  WINPR_ASSERT(call);
  char szReaderA[1024] = WINPR_C_ARRAY_INIT;
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  if (call->szReader)
    (void)ConvertWCharToUtf8(call->szReader, szReaderA, ARRAYSIZE(szReaderA));
  WLog_Print(log, g_LogLevel, "ConnectW_Call {");
  smartcard_log_context(log, &call->Common.handles.hContext);
 
  WLog_Print(log, g_LogLevel,
             "szReader: %s dwShareMode: %s (0x%08" PRIX32
             ") dwPreferredProtocols: %s (0x%08" PRIX32 ")",
             szReaderA, SCardGetShareModeString(call->Common.dwShareMode),
             call->Common.dwShareMode, SCardGetProtocolString(call->Common.dwPreferredProtocols),
             call->Common.dwPreferredProtocols);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_hcard_and_disposition_call(wLog* log,
                                                       const HCardAndDisposition_Call* call,
                                                       const char* name)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "%s_Call {", name);
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
 
  WLog_Print(log, g_LogLevel, "dwDisposition: %s (0x%08" PRIX32 ")",
             SCardGetDispositionString(call->dwDisposition), call->dwDisposition);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_establish_context_call(wLog* log, const EstablishContext_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "EstablishContext_Call {");
  WLog_Print(log, g_LogLevel, "dwScope: %s (0x%08" PRIX32 ")", SCardGetScopeString(call->dwScope),
             call->dwScope);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_establish_context_return(wLog* log, const EstablishContext_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "EstablishContext_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  smartcard_log_context(log, &ret->hContext);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
void smartcard_trace_long_return(const Long_Return* ret, const char* name)
{
  wLog* log = scard_log();
  smartcard_trace_long_return_int(log, ret, name);
}
 
void smartcard_trace_long_return_int(wLog* log, const Long_Return* ret, const char* name)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "%s_Return {", name);
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_connect_return(wLog* log, const Connect_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Connect_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  smartcard_log_context(log, &ret->hContext);
  smartcard_log_redir_handle(log, &ret->hCard);
 
  WLog_Print(log, g_LogLevel, "  dwActiveProtocol: %s (0x%08" PRIX32 ")",
             SCardGetProtocolString(ret->dwActiveProtocol), ret->dwActiveProtocol);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_reconnect_call(wLog* log, const Reconnect_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "Reconnect_Call {");
  smartcard_log_context(log, &call->handles.hContext);
  smartcard_log_redir_handle(log, &call->handles.hCard);
 
  WLog_Print(log, g_LogLevel,
             "dwShareMode: %s (0x%08" PRIX32 ") dwPreferredProtocols: %s (0x%08" PRIX32
             ") dwInitialization: %s (0x%08" PRIX32 ")",
             SCardGetShareModeString(call->dwShareMode), call->dwShareMode,
             SCardGetProtocolString(call->dwPreferredProtocols), call->dwPreferredProtocols,
             SCardGetDispositionString(call->dwInitialization), call->dwInitialization);
  WLog_Print(log, g_LogLevel, "}");
}
 
static void smartcard_trace_device_type_id_return(wLog* log, const GetDeviceTypeId_Return* ret)
{
  WINPR_ASSERT(ret);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetDeviceTypeId_Return {");
  WLog_Print(log, g_LogLevel, "  ReturnCode: %s (0x%08" PRIX32 ")",
             SCardGetErrorString(ret->ReturnCode),
             WINPR_CXX_COMPAT_CAST(UINT32, ret->ReturnCode));
  WLog_Print(log, g_LogLevel, "  dwDeviceId=%08" PRIx32, ret->dwDeviceId);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static LONG smartcard_unpack_common_context_and_string_a(wLog* log, wStream* s,
                                                         REDIR_SCARDCONTEXT* phContext,
                                                         CHAR** pszReaderName)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
  LONG status = smartcard_unpack_redir_scard_context(log, s, phContext, &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, nullptr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr, phContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_ndr_read_a(log, s, pszReaderName, NDR_PTR_FULL);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_context_and_string_call_a(log, __func__, phContext, *pszReaderName);
  return SCARD_S_SUCCESS;
}
 
static LONG smartcard_unpack_common_context_and_string_w(wLog* log, wStream* s,
                                                         REDIR_SCARDCONTEXT* phContext,
                                                         WCHAR** pszReaderName)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, phContext, &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, nullptr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr, phContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_ndr_read_w(log, s, pszReaderName, NDR_PTR_FULL);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_context_and_string_call_w(log, __func__, phContext, *pszReaderName);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_common_type_header(wStream* s)
{
  wLog* log = scard_log();
  UINT8 version = 0;
  UINT32 filler = 0;
  UINT8 endianness = 0;
  UINT16 commonHeaderLength = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  /* Process CommonTypeHeader */
  Stream_Read_UINT8(s, version);             /* Version (1 byte) */
  Stream_Read_UINT8(s, endianness);          /* Endianness (1 byte) */
  Stream_Read_UINT16(s, commonHeaderLength); /* CommonHeaderLength (2 bytes) */
  Stream_Read_UINT32(s, filler);             /* Filler (4 bytes), should be 0xCCCCCCCC */
 
  if (version != 1)
  {
    WLog_Print(log, WLOG_WARN, "Unsupported CommonTypeHeader Version %" PRIu8 "", version);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (endianness != 0x10)
  {
    WLog_Print(log, WLOG_WARN, "Unsupported CommonTypeHeader Endianness %" PRIu8 "",
               endianness);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (commonHeaderLength != 8)
  {
    WLog_Print(log, WLOG_WARN, "Unsupported CommonTypeHeader CommonHeaderLength %" PRIu16 "",
               commonHeaderLength);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (filler != 0xCCCCCCCC)
  {
    WLog_Print(log, WLOG_WARN, "Unexpected CommonTypeHeader Filler 0x%08" PRIX32 "", filler);
    return STATUS_INVALID_PARAMETER;
  }
 
  return SCARD_S_SUCCESS;
}
 
void smartcard_pack_common_type_header(wStream* s)
{
  Stream_Write_UINT8(s, 1);           /* Version (1 byte) */
  Stream_Write_UINT8(s, 0x10);        /* Endianness (1 byte) */
  Stream_Write_UINT16(s, 8);          /* CommonHeaderLength (2 bytes) */
  Stream_Write_UINT32(s, 0xCCCCCCCC); /* Filler (4 bytes), should be 0xCCCCCCCC */
}
 
LONG smartcard_unpack_private_type_header(wStream* s)
{
  wLog* log = scard_log();
  UINT32 filler = 0;
  UINT32 objectBufferLength = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, objectBufferLength); /* ObjectBufferLength (4 bytes) */
  Stream_Read_UINT32(s, filler);             /* Filler (4 bytes), should be 0x00000000 */
 
  if (filler != 0x00000000)
  {
    WLog_Print(log, WLOG_WARN, "Unexpected PrivateTypeHeader Filler 0x%08" PRIX32 "", filler);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, objectBufferLength))
    return STATUS_INVALID_PARAMETER;
 
  return SCARD_S_SUCCESS;
}
 
void smartcard_pack_private_type_header(wStream* s, UINT32 objectBufferLength)
{
  Stream_Write_UINT32(s, objectBufferLength); /* ObjectBufferLength (4 bytes) */
  Stream_Write_UINT32(s, 0x00000000);         /* Filler (4 bytes), should be 0x00000000 */
}
 
LONG smartcard_unpack_read_size_align(wStream* s, size_t size, UINT32 alignment)
{
  const size_t padsize = (size + alignment - 1) & ~(alignment - 1);
  const size_t pad = padsize - size;
 
  if (pad > 0)
  {
    if (!Stream_SafeSeek(s, pad))
      return -1;
  }
 
  return (LONG)pad;
}
 
LONG smartcard_pack_write_size_align(wStream* s, size_t size, UINT32 alignment)
{
  const size_t padsize = (size + alignment - 1) & ~(alignment - 1);
  const size_t pad = padsize - size;
 
  if (pad)
  {
    if (!Stream_EnsureRemainingCapacity(s, pad))
    {
      wLog* log = scard_log();
      WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
      return SCARD_F_INTERNAL_ERROR;
    }
 
    Stream_Zero(s, pad);
  }
 
  return SCARD_S_SUCCESS;
}
 
SCARDCONTEXT smartcard_scard_context_native_from_redir(const REDIR_SCARDCONTEXT* context)
{
  SCARDCONTEXT hContext = WINPR_C_ARRAY_INIT;
 
  WINPR_ASSERT(context);
  if ((context->cbContext != sizeof(ULONG_PTR)) && (context->cbContext != 0))
  {
    wLog* log = scard_log();
    WLog_Print(log, WLOG_WARN,
               "REDIR_SCARDCONTEXT does not match native size: Actual: %" PRIu32
               ", Expected: %" PRIuz "",
               context->cbContext, sizeof(ULONG_PTR));
    return 0;
  }
 
  if (context->cbContext)
    CopyMemory(&hContext, &(context->pbContext), context->cbContext);
 
  return hContext;
}
 
void smartcard_scard_context_native_to_redir(REDIR_SCARDCONTEXT* context, SCARDCONTEXT hContext)
{
  WINPR_ASSERT(context);
  ZeroMemory(context, sizeof(REDIR_SCARDCONTEXT));
  context->cbContext = sizeof(ULONG_PTR);
  CopyMemory(&(context->pbContext), &hContext, context->cbContext);
}
 
SCARDHANDLE smartcard_scard_handle_native_from_redir(const REDIR_SCARDHANDLE* handle)
{
  SCARDHANDLE hCard = 0;
 
  WINPR_ASSERT(handle);
  if (handle->cbHandle == 0)
    return hCard;
 
  if (handle->cbHandle != sizeof(ULONG_PTR))
  {
    wLog* log = scard_log();
    WLog_Print(log, WLOG_WARN,
               "REDIR_SCARDHANDLE does not match native size: Actual: %" PRIu32
               ", Expected: %" PRIuz "",
               handle->cbHandle, sizeof(ULONG_PTR));
    return 0;
  }
 
  if (handle->cbHandle)
    CopyMemory(&hCard, &(handle->pbHandle), handle->cbHandle);
 
  return hCard;
}
 
void smartcard_scard_handle_native_to_redir(REDIR_SCARDHANDLE* handle, SCARDHANDLE hCard)
{
  WINPR_ASSERT(handle);
  ZeroMemory(handle, sizeof(REDIR_SCARDHANDLE));
  handle->cbHandle = sizeof(ULONG_PTR);
  CopyMemory(&(handle->pbHandle), &hCard, handle->cbHandle);
}
 
#define smartcard_context_supported(log, size) \
  smartcard_context_supported_((log), (size), __FILE__, __func__, __LINE__)
static LONG smartcard_context_supported_(wLog* log, uint32_t size, const char* file,
                                         const char* fkt, size_t line)
{
  switch (size)
  {
    case 0:
    case 4:
    case 8:
      return SCARD_S_SUCCESS;
    default:
    {
      const uint32_t level = WLOG_WARN;
      if (WLog_IsLevelActive(log, level))
      {
        WLog_PrintTextMessage(log, level, line, file, fkt,
                              "REDIR_SCARDCONTEXT length is not 0, 4 or 8: %" PRIu32 "",
                              size);
      }
      return STATUS_INVALID_PARAMETER;
    }
  }
}
 
LONG smartcard_unpack_redir_scard_context_(wLog* log, wStream* s, REDIR_SCARDCONTEXT* context,
                                           UINT32* index, UINT32* ppbContextNdrPtr,
                                           const char* file, const char* function, size_t line)
{
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_UNUSED(file);
  WINPR_ASSERT(context);
 
  ZeroMemory(context, sizeof(REDIR_SCARDCONTEXT));
 
  if (!Stream_CheckAndLogRequiredLengthWLogEx(log, WLOG_WARN, s, 4, 1, "%s(%s:%" PRIuz ")", file,
                                              function, line))
    return STATUS_BUFFER_TOO_SMALL;
 
  const LONG status = smartcard_context_supported_(log, context->cbContext, file, function, line);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  Stream_Read_UINT32(s, context->cbContext); /* cbContext (4 bytes) */
 
  if (!smartcard_ndr_pointer_read_(log, s, index, &pbContextNdrPtr, file, function, line))
    return ERROR_INVALID_DATA;
 
  if (((context->cbContext == 0) && pbContextNdrPtr) ||
      ((context->cbContext != 0) && !pbContextNdrPtr))
  {
    WLog_Print(log, WLOG_WARN,
               "REDIR_SCARDCONTEXT cbContext (%" PRIu32 ") pbContextNdrPtr (%" PRIu32
               ") inconsistency",
               context->cbContext, pbContextNdrPtr);
    return STATUS_INVALID_PARAMETER;
  }
 
  *ppbContextNdrPtr = pbContextNdrPtr;
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_redir_scard_context(WINPR_ATTR_UNUSED wLog* log, wStream* s,
                                        const REDIR_SCARDCONTEXT* context, DWORD* index)
{
  const UINT32 pbContextNdrPtr = 0x00020000 + *index * 4;
 
  WINPR_ASSERT(context);
  if (context->cbContext != 0)
  {
    Stream_Write_UINT32(s, context->cbContext); /* cbContext (4 bytes) */
    Stream_Write_UINT32(s, pbContextNdrPtr);    /* pbContextNdrPtr (4 bytes) */
    *index = *index + 1;
  }
  else
    Stream_Zero(s, 8);
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_redir_scard_context_ref(wLog* log, wStream* s,
                                              WINPR_ATTR_UNUSED UINT32 pbContextNdrPtr,
                                              REDIR_SCARDCONTEXT* context)
{
  UINT32 length = 0;
 
  WINPR_ASSERT(context);
 
  if (context->cbContext == 0)
    return SCARD_S_SUCCESS;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, length); /* Length (4 bytes) */
 
  if (length != context->cbContext)
  {
    WLog_Print(log, WLOG_WARN,
               "REDIR_SCARDCONTEXT length (%" PRIu32 ") cbContext (%" PRIu32 ") mismatch",
               length, context->cbContext);
    return STATUS_INVALID_PARAMETER;
  }
 
  const LONG status = smartcard_context_supported(log, context->cbContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, context->cbContext))
    return STATUS_BUFFER_TOO_SMALL;
 
  if (context->cbContext)
    Stream_Read(s, &(context->pbContext), context->cbContext);
  else
    ZeroMemory(&(context->pbContext), sizeof(context->pbContext));
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_redir_scard_context_ref(WINPR_ATTR_UNUSED wLog* log, wStream* s,
                                            const REDIR_SCARDCONTEXT* context)
{
  WINPR_ASSERT(context);
 
  if (context->cbContext == 0)
    return SCARD_S_SUCCESS;
 
  Stream_Write_UINT32(s, context->cbContext); /* Length (4 bytes) */
  Stream_Write(s, &(context->pbContext), context->cbContext);
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_redir_scard_handle_(wLog* log, wStream* s, REDIR_SCARDHANDLE* handle,
                                          UINT32* index, const char* file, const char* function,
                                          size_t line)
{
  UINT32 pbHandleNdrPtr = 0;
 
  WINPR_ASSERT(handle);
  ZeroMemory(handle, sizeof(REDIR_SCARDHANDLE));
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, handle->cbHandle); /* Length (4 bytes) */
 
  if (!smartcard_ndr_pointer_read_(log, s, index, &pbHandleNdrPtr, file, function, line))
    return ERROR_INVALID_DATA;
 
  if (((handle->cbHandle == 0) && pbHandleNdrPtr) ||
      ((handle->cbHandle != 0) && !pbHandleNdrPtr))
  {
    WLog_Print(log, WLOG_WARN,
               "REDIR_SCARDHANDLE cbHandle (%" PRIu32 ") pbHandleNdrPtr (%" PRIu32
               ") inconsistency",
               handle->cbHandle, pbHandleNdrPtr);
    return STATUS_INVALID_PARAMETER;
  }
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_redir_scard_handle(WINPR_ATTR_UNUSED wLog* log, wStream* s,
                                       const REDIR_SCARDHANDLE* handle, DWORD* index)
{
  const UINT32 pbContextNdrPtr = 0x00020000 + *index * 4;
 
  WINPR_ASSERT(handle);
  if (handle->cbHandle != 0)
  {
    Stream_Write_UINT32(s, handle->cbHandle); /* cbContext (4 bytes) */
    Stream_Write_UINT32(s, pbContextNdrPtr);  /* pbContextNdrPtr (4 bytes) */
    *index = *index + 1;
  }
  else
    Stream_Zero(s, 8);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_redir_scard_handle_ref(wLog* log, wStream* s, REDIR_SCARDHANDLE* handle)
{
  UINT32 length = 0;
 
  WINPR_ASSERT(handle);
 
  if (handle->cbHandle == 0)
    return SCARD_S_SUCCESS;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, length); /* Length (4 bytes) */
 
  if (length != handle->cbHandle)
  {
    WLog_Print(log, WLOG_WARN,
               "REDIR_SCARDHANDLE length (%" PRIu32 ") cbHandle (%" PRIu32 ") mismatch", length,
               handle->cbHandle);
    return STATUS_INVALID_PARAMETER;
  }
 
  if ((handle->cbHandle != 4) && (handle->cbHandle != 8))
  {
    WLog_Print(log, WLOG_WARN, "REDIR_SCARDHANDLE length is not 4 or 8: %" PRIu32 "",
               handle->cbHandle);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, handle->cbHandle))
    return STATUS_BUFFER_TOO_SMALL;
 
  if (handle->cbHandle)
    Stream_Read(s, &(handle->pbHandle), handle->cbHandle);
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_redir_scard_handle_ref(WINPR_ATTR_UNUSED wLog* log, wStream* s,
                                           const REDIR_SCARDHANDLE* handle)
{
  WINPR_ASSERT(handle);
 
  if (handle->cbHandle == 0)
    return SCARD_S_SUCCESS;
 
  Stream_Write_UINT32(s, handle->cbHandle); /* Length (4 bytes) */
  Stream_Write(s, &(handle->pbHandle), handle->cbHandle);
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_establish_context_call(wStream* s, EstablishContext_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->dwScope); /* dwScope (4 bytes) */
  smartcard_trace_establish_context_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_establish_context_call(wStream* s, const EstablishContext_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  smartcard_trace_establish_context_call(log, call);
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwScope);
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_establish_context_return(wStream* s, const EstablishContext_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  LONG status = 0;
  DWORD index = 0;
 
  smartcard_trace_establish_context_return(log, ret);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    return ret->ReturnCode;
 
  status = smartcard_pack_redir_scard_context(log, s, &(ret->hContext), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return smartcard_pack_redir_scard_context_ref(log, s, &(ret->hContext));
}
 
LONG smartcard_unpack_establish_context_return(wStream* s, EstablishContext_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  LONG status =
      smartcard_unpack_redir_scard_context(log, s, &(ret->hContext), &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr, &(ret->hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_establish_context_return(log, ret);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_context_call(wStream* s, Context_Call* call, const char* name)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
  wLog* log = scard_log();
 
  WINPR_ASSERT(call);
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    WLog_Print(log, WLOG_ERROR,
               "smartcard_unpack_redir_scard_context_ref failed with error %" PRId32 "",
               status);
 
  smartcard_trace_context_call(log, call, name);
  return status;
}
 
LONG smartcard_unpack_list_reader_groups_call(wStream* s, ListReaderGroups_Call* call, BOOL unicode)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
  wLog* log = scard_log();
 
  WINPR_ASSERT(call);
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
 
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_INT32(s, call->fmszGroupsIsNULL); /* fmszGroupsIsNULL (4 bytes) */
  Stream_Read_UINT32(s, call->cchGroups);       /* cchGroups (4 bytes) */
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
 
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_list_reader_groups_call(log, call, unicode);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_list_reader_groups_call(wStream* s, const ListReaderGroups_Call* call,
                                            BOOL unicode)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_list_reader_groups_call(log, call, unicode);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_INT32(s, call->fmszGroupsIsNULL);
  Stream_Write_UINT32(s, call->cchGroups);
 
  return smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
}
 
LONG smartcard_pack_list_reader_groups_return(wStream* s, const ListReaderGroups_Return* ret,
                                              BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  LONG status = 0;
  DWORD cBytes = ret->cBytes;
  UINT32 index = 0;
 
  smartcard_trace_list_reader_groups_return(log, ret, unicode);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cBytes = 0;
  if (cBytes == SCARD_AUTOALLOCATE)
    cBytes = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, cBytes); /* cBytes (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, cBytes))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_ndr_write(s, ret->msz, cBytes, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_list_reader_groups_return(wStream* s, ListReaderGroups_Return* ret,
                                                BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 mszNdrPtr = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cBytes = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (mszNdrPtr)
  {
    LONG status = smartcard_ndr_read(log, s, &ret->msz, cBytes, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    ret->cBytes = cBytes;
  }
 
  smartcard_trace_list_reader_groups_return(log, ret, unicode);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_list_readers_call(wStream* s, ListReaders_Call* call, BOOL unicode)
{
  UINT32 index = 0;
  UINT32 mszGroupsNdrPtr = 0;
  UINT32 pbContextNdrPtr = 0;
  wLog* log = scard_log();
 
  WINPR_ASSERT(call);
  call->mszGroups = nullptr;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cBytes = Stream_Get_UINT32(s);
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszGroupsNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
  Stream_Read_INT32(s, call->fmszReadersIsNULL); /* fmszReadersIsNULL (4 bytes) */
  Stream_Read_UINT32(s, call->cchReaders);       /* cchReaders (4 bytes) */
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (mszGroupsNdrPtr)
  {
    status = smartcard_ndr_read(log, s, &call->mszGroups, cBytes, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cBytes = cBytes;
  }
 
  smartcard_trace_list_readers_call(log, call, unicode);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_list_readers_return(wStream* s, const ListReaders_Return* ret, BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  LONG status = 0;
  UINT32 index = 0;
  UINT32 size = ret->cBytes;
 
  smartcard_trace_list_readers_return(log, ret, unicode);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    size = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
  {
    WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
    return SCARD_F_INTERNAL_ERROR;
  }
 
  Stream_Write_UINT32(s, size); /* cBytes (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, size))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_ndr_write(s, ret->msz, size, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
static LONG smartcard_unpack_connect_common(wLog* log, wStream* s, Connect_Common_Call* common,
                                            UINT32* index, UINT32* ppbContextNdrPtr)
{
  WINPR_ASSERT(common);
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(common->handles.hContext), index,
                                                     ppbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, common->dwShareMode);          /* dwShareMode (4 bytes) */
  Stream_Read_UINT32(s, common->dwPreferredProtocols); /* dwPreferredProtocols (4 bytes) */
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_connect_a_call(wStream* s, ConnectA_Call* call)
{
  LONG status = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  call->szReader = nullptr;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, nullptr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_connect_common(log, s, &(call->Common), &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
  {
    WLog_Print(log, WLOG_ERROR, "smartcard_unpack_connect_common failed with error %" PRId32 "",
               status);
    return status;
  }
 
  status = smartcard_ndr_read_a(log, s, &call->szReader, NDR_PTR_FULL);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->Common.handles.hContext));
  if (status != SCARD_S_SUCCESS)
    WLog_Print(log, WLOG_ERROR,
               "smartcard_unpack_redir_scard_context_ref failed with error %" PRId32 "",
               status);
 
  smartcard_trace_connect_a_call(log, call);
  return status;
}
 
LONG smartcard_unpack_connect_w_call(wStream* s, ConnectW_Call* call)
{
  LONG status = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  call->szReader = nullptr;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, nullptr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_connect_common(log, s, &(call->Common), &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
  {
    WLog_Print(log, WLOG_ERROR, "smartcard_unpack_connect_common failed with error %" PRId32 "",
               status);
    return status;
  }
 
  status = smartcard_ndr_read_w(log, s, &call->szReader, NDR_PTR_FULL);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->Common.handles.hContext));
  if (status != SCARD_S_SUCCESS)
    WLog_Print(log, WLOG_ERROR,
               "smartcard_unpack_redir_scard_context_ref failed with error %" PRId32 "",
               status);
 
  smartcard_trace_connect_w_call(log, call);
  return status;
}
 
LONG smartcard_pack_connect_return(wStream* s, const Connect_Return* ret)
{
  LONG status = 0;
  DWORD index = 0;
 
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  smartcard_trace_connect_return(log, ret);
 
  status = smartcard_pack_redir_scard_context(log, s, &ret->hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &ret->hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, ret->dwActiveProtocol); /* dwActiveProtocol (4 bytes) */
  status = smartcard_pack_redir_scard_context_ref(log, s, &ret->hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
  return smartcard_pack_redir_scard_handle_ref(log, s, &(ret->hCard));
}
 
LONG smartcard_unpack_reconnect_call(wStream* s, Reconnect_Call* call)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 12))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->dwShareMode);          /* dwShareMode (4 bytes) */
  Stream_Read_UINT32(s, call->dwPreferredProtocols); /* dwPreferredProtocols (4 bytes) */
  Stream_Read_UINT32(s, call->dwInitialization);     /* dwInitialization (4 bytes) */
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
  {
    WLog_Print(log, WLOG_ERROR,
               "smartcard_unpack_redir_scard_context_ref failed with error %" PRId32 "",
               status);
    return status;
  }
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    WLog_Print(log, WLOG_ERROR,
               "smartcard_unpack_redir_scard_handle_ref failed with error %" PRId32 "", status);
 
  smartcard_trace_reconnect_call(log, call);
  return status;
}
 
LONG smartcard_pack_reconnect_call(wStream* s, const Reconnect_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_reconnect_call(log, call);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &call->handles.hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 12))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwShareMode);
  Stream_Write_UINT32(s, call->dwPreferredProtocols);
  Stream_Write_UINT32(s, call->dwInitialization);
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return smartcard_pack_redir_scard_handle_ref(log, s, &call->handles.hCard);
}
 
LONG smartcard_pack_reconnect_return(wStream* s, const Reconnect_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  smartcard_trace_reconnect_return(log, ret);
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
  Stream_Write_UINT32(s, ret->dwActiveProtocol); /* dwActiveProtocol (4 bytes) */
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_reconnect_return(wStream* s, Reconnect_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, ret->dwActiveProtocol);
 
  smartcard_trace_reconnect_return(log, ret);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_hcard_and_disposition_call(wStream* s, HCardAndDisposition_Call* call,
                                                 const char* name)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->dwDisposition); /* dwDisposition (4 bytes) */
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_hcard_and_disposition_call(log, call, name);
  return status;
}
 
static void smartcard_trace_get_status_change_a_call(wLog* log, const GetStatusChangeA_Call* call)
{
  WINPR_ASSERT(call);
 
  if (!WLog_IsLevelActive(log, g_LogLevel))
    return;
 
  WLog_Print(log, g_LogLevel, "GetStatusChangeA_Call {");
  smartcard_log_context(log, &call->handles.hContext);
 
  WLog_Print(log, g_LogLevel, "dwTimeOut: 0x%08" PRIX32 " cReaders: %" PRIu32 "", call->dwTimeOut,
             call->cReaders);
 
  dump_reader_states_a(log, call->rgReaderStates, call->cReaders);
 
  WLog_Print(log, g_LogLevel, "}");
}
 
static LONG smartcard_unpack_reader_state_a(wLog* log, wStream* s, LPSCARD_READERSTATEA* ppcReaders,
                                            UINT32 cReaders, UINT32* ptrIndex)
{
  LONG status = SCARD_E_NO_MEMORY;
 
  WINPR_ASSERT(ppcReaders || (cReaders == 0));
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return status;
 
  const UINT32 len = Stream_Get_UINT32(s);
  if (len != cReaders)
  {
    WLog_Print(log, WLOG_ERROR, "Count mismatch when reading LPSCARD_READERSTATEA");
    return status;
  }
 
  LPSCARD_READERSTATEA rgReaderStates =
      (LPSCARD_READERSTATEA)calloc(cReaders, sizeof(SCARD_READERSTATEA));
  BOOL* states = calloc(cReaders, sizeof(BOOL));
  if (!rgReaderStates || !states)
    goto fail;
  status = ERROR_INVALID_DATA;
 
  for (UINT32 index = 0; index < cReaders; index++)
  {
    UINT32 ptr = UINT32_MAX;
    LPSCARD_READERSTATEA readerState = &rgReaderStates[index];
 
    if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 52))
      goto fail;
 
    if (!smartcard_ndr_pointer_read(log, s, ptrIndex, &ptr))
    {
      if (ptr != 0)
        goto fail;
    }
    /* Ignore nullptr length strings */
    states[index] = ptr != 0;
    Stream_Read_UINT32(s, readerState->dwCurrentState); /* dwCurrentState (4 bytes) */
    Stream_Read_UINT32(s, readerState->dwEventState);   /* dwEventState (4 bytes) */
    Stream_Read_UINT32(s, readerState->cbAtr);          /* cbAtr (4 bytes) */
    if (readerState->cbAtr > ARRAYSIZE(readerState->rgbAtr))
    {
      WLog_Print(log, WLOG_ERROR,
                 "SCARD_READERSTATEA[%" PRIu32 "]::cbAtr %" PRIu32 " exceeds %" PRIuz, index,
                 readerState->cbAtr, (size_t)ARRAYSIZE(readerState->rgbAtr));
      goto fail;
    }
    Stream_Read(s, readerState->rgbAtr, 36);            /* rgbAtr [0..36] (36 bytes) */
  }
 
  for (UINT32 index = 0; index < cReaders; index++)
  {
    LPSCARD_READERSTATEA readerState = &rgReaderStates[index];
 
    /* Ignore empty strings */
    if (!states[index])
      continue;
    status = smartcard_ndr_read_a(log, s, &readerState->szReader, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      goto fail;
  }
 
  *ppcReaders = rgReaderStates;
  free(states);
  return SCARD_S_SUCCESS;
fail:
  if (rgReaderStates)
  {
    for (UINT32 index = 0; index < cReaders; index++)
    {
      LPSCARD_READERSTATEA readerState = &rgReaderStates[index];
      free(readerState->szReader);
    }
  }
  free(rgReaderStates);
  free(states);
  return status;
}
 
static LONG smartcard_unpack_reader_state_w(wLog* log, wStream* s, LPSCARD_READERSTATEW* ppcReaders,
                                            UINT32 cReaders, UINT32* ptrIndex)
{
  LONG status = SCARD_E_NO_MEMORY;
 
  WINPR_ASSERT(ppcReaders || (cReaders == 0));
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return status;
 
  const UINT32 len = Stream_Get_UINT32(s);
  if (len != cReaders)
  {
    WLog_Print(log, WLOG_ERROR, "Count mismatch when reading LPSCARD_READERSTATEW");
    return status;
  }
 
  LPSCARD_READERSTATEW rgReaderStates =
      (LPSCARD_READERSTATEW)calloc(cReaders, sizeof(SCARD_READERSTATEW));
  BOOL* states = calloc(cReaders, sizeof(BOOL));
 
  if (!rgReaderStates || !states)
    goto fail;
 
  status = ERROR_INVALID_DATA;
  for (UINT32 index = 0; index < cReaders; index++)
  {
    UINT32 ptr = UINT32_MAX;
    LPSCARD_READERSTATEW readerState = &rgReaderStates[index];
 
    if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 52))
      goto fail;
 
    if (!smartcard_ndr_pointer_read(log, s, ptrIndex, &ptr))
    {
      if (ptr != 0)
        goto fail;
    }
    /* Ignore nullptr length strings */
    states[index] = ptr != 0;
    Stream_Read_UINT32(s, readerState->dwCurrentState); /* dwCurrentState (4 bytes) */
    Stream_Read_UINT32(s, readerState->dwEventState);   /* dwEventState (4 bytes) */
    Stream_Read_UINT32(s, readerState->cbAtr);          /* cbAtr (4 bytes) */
    if (readerState->cbAtr > ARRAYSIZE(readerState->rgbAtr))
    {
      WLog_Print(log, WLOG_ERROR,
                 "SCARD_READERSTATEW[%" PRIu32 "]::cbAtr %" PRIu32 " exceeds %" PRIuz, index,
                 readerState->cbAtr, (size_t)ARRAYSIZE(readerState->rgbAtr));
      goto fail;
    }
    Stream_Read(s, readerState->rgbAtr, 36);            /* rgbAtr [0..36] (36 bytes) */
  }
 
  for (UINT32 index = 0; index < cReaders; index++)
  {
    LPSCARD_READERSTATEW readerState = &rgReaderStates[index];
 
    /* Skip nullptr pointers */
    if (!states[index])
      continue;
 
    status = smartcard_ndr_read_w(log, s, &readerState->szReader, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      goto fail;
  }
 
  *ppcReaders = rgReaderStates;
  free(states);
  return SCARD_S_SUCCESS;
fail:
  if (rgReaderStates)
  {
    for (UINT32 index = 0; index < cReaders; index++)
    {
      LPSCARD_READERSTATEW readerState = &rgReaderStates[index];
      free(readerState->szReader);
    }
  }
  free(rgReaderStates);
  free(states);
  return status;
}
 
/******************************************************************************/
/************************************* End Trace Functions ********************/
/******************************************************************************/
 
LONG smartcard_unpack_get_status_change_a_call(wStream* s, GetStatusChangeA_Call* call)
{
  UINT32 ndrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  call->rgReaderStates = nullptr;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->dwTimeOut); /* dwTimeOut (4 bytes) */
  const DWORD cReaders = Stream_Get_UINT32(s); /* cReaders (4 bytes) */
  if (!smartcard_ndr_pointer_read(log, s, &index, &ndrPtr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (ndrPtr)
  {
    status = smartcard_unpack_reader_state_a(log, s, &call->rgReaderStates, cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cReaders = cReaders;
  }
  else
  {
    WLog_Print(log, WLOG_WARN, "ndrPtr=0x%08" PRIx32 ", can not read rgReaderStates", ndrPtr);
    return SCARD_E_UNEXPECTED;
  }
 
  smartcard_trace_get_status_change_a_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_get_status_change_w_call(wStream* s, GetStatusChangeW_Call* call)
{
  UINT32 ndrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  call->rgReaderStates = nullptr;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->dwTimeOut); /* dwTimeOut (4 bytes) */
  const DWORD cReaders = Stream_Get_UINT32(s); /* cReaders (4 bytes) */
  if (!smartcard_ndr_pointer_read(log, s, &index, &ndrPtr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (ndrPtr)
  {
    status = smartcard_unpack_reader_state_w(log, s, &call->rgReaderStates, cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cReaders = cReaders;
  }
  else
  {
    WLog_Print(log, WLOG_WARN, "ndrPtr=0x%08" PRIx32 ", can not read rgReaderStates", ndrPtr);
    return SCARD_E_UNEXPECTED;
  }
 
  smartcard_trace_get_status_change_w_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_get_status_change_return(wStream* s, const GetStatusChange_Return* ret,
                                             BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  LONG status = 0;
  DWORD cReaders = ret->cReaders;
  UINT32 index = 0;
 
  smartcard_trace_get_status_change_return(log, ret, unicode);
  if ((ret->ReturnCode != SCARD_S_SUCCESS) && (ret->ReturnCode != SCARD_E_TIMEOUT))
    cReaders = 0;
  if (cReaders == SCARD_AUTOALLOCATE)
    cReaders = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, cReaders); /* cReaders (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, cReaders))
    return SCARD_E_NO_MEMORY;
  status = smartcard_ndr_write_state(s, ret->rgReaderStates, cReaders, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_state_call(wStream* s, State_Call* call)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  wLog* log = scard_log();
 
  WINPR_ASSERT(call);
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_INT32(s, call->fpbAtrIsNULL); /* fpbAtrIsNULL (4 bytes) */
  Stream_Read_UINT32(s, call->cbAtrLen);    /* cbAtrLen (4 bytes) */
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return status;
}
 
LONG smartcard_pack_state_return(wStream* s, const State_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  LONG status = 0;
  DWORD cbAtrLen = ret->cbAtrLen;
  UINT32 index = 0;
 
  smartcard_trace_state_return(log, ret);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cbAtrLen = 0;
  if (cbAtrLen == SCARD_AUTOALLOCATE)
    cbAtrLen = 0;
 
  Stream_Write_UINT32(s, ret->dwState);    /* dwState (4 bytes) */
  Stream_Write_UINT32(s, ret->dwProtocol); /* dwProtocol (4 bytes) */
  Stream_Write_UINT32(s, cbAtrLen);        /* cbAtrLen (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, cbAtrLen))
    return SCARD_E_NO_MEMORY;
  status = smartcard_ndr_write(s, ret->rgAtr, cbAtrLen, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_status_call(wStream* s, Status_Call* call, BOOL unicode)
{
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 12))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_INT32(s, call->fmszReaderNamesIsNULL); /* fmszReaderNamesIsNULL (4 bytes) */
  Stream_Read_UINT32(s, call->cchReaderLen);         /* cchReaderLen (4 bytes) */
  Stream_Read_UINT32(s, call->cbAtrLen);             /* cbAtrLen (4 bytes) */
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_status_call(log, call, unicode);
  return status;
}
 
LONG smartcard_pack_status_call(wStream* s, const Status_Call* call, BOOL unicode)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_status_call(log, call, unicode);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &call->handles.hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 12))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_INT32(s, call->fmszReaderNamesIsNULL);
  Stream_Write_UINT32(s, call->cchReaderLen);
  Stream_Write_UINT32(s, call->cbAtrLen);
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return smartcard_pack_redir_scard_handle_ref(log, s, &call->handles.hCard);
}
 
LONG smartcard_pack_status_return(wStream* s, const Status_Return* ret, BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  LONG status = 0;
  UINT32 index = 0;
  DWORD cBytes = ret->cBytes;
 
  smartcard_trace_status_return(log, ret, unicode);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cBytes = 0;
  if (cBytes == SCARD_AUTOALLOCATE)
    cBytes = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_F_INTERNAL_ERROR;
 
  Stream_Write_UINT32(s, cBytes); /* cBytes (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, cBytes))
    return SCARD_E_NO_MEMORY;
 
  if (!Stream_EnsureRemainingCapacity(s, 44))
    return SCARD_F_INTERNAL_ERROR;
 
  Stream_Write_UINT32(s, ret->dwState);            /* dwState (4 bytes) */
  Stream_Write_UINT32(s, ret->dwProtocol);         /* dwProtocol (4 bytes) */
  Stream_Write(s, ret->pbAtr, sizeof(ret->pbAtr)); /* pbAtr (32 bytes) */
  Stream_Write_UINT32(s, ret->cbAtrLen);           /* cbAtrLen (4 bytes) */
  status = smartcard_ndr_write(s, ret->mszReaderNames, cBytes, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_status_return(wStream* s, Status_Return* ret, BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 mszNdrPtr = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cBytes = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 44))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, ret->dwState);
  Stream_Read_UINT32(s, ret->dwProtocol);
  Stream_Read(s, ret->pbAtr, sizeof(ret->pbAtr));
  Stream_Read_UINT32(s, ret->cbAtrLen);
 
  if (mszNdrPtr)
  {
    LONG status = smartcard_ndr_read(log, s, &ret->mszReaderNames, cBytes, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    ret->cBytes = cBytes;
  }
 
  smartcard_trace_status_return(log, ret, unicode);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_get_attrib_call(wStream* s, GetAttrib_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 12))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->dwAttrId);     /* dwAttrId (4 bytes) */
  Stream_Read_INT32(s, call->fpbAttrIsNULL); /* fpbAttrIsNULL (4 bytes) */
  Stream_Read_UINT32(s, call->cbAttrLen);    /* cbAttrLen (4 bytes) */
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_get_attrib_call(log, call);
  return status;
}
 
LONG smartcard_pack_get_attrib_return(wStream* s, const GetAttrib_Return* ret, DWORD dwAttrId,
                                      DWORD cbAttrCallLen)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  LONG status = 0;
  DWORD cbAttrLen = 0;
  UINT32 index = 0;
  smartcard_trace_get_attrib_return(log, ret, dwAttrId);
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_F_INTERNAL_ERROR;
 
  cbAttrLen = ret->cbAttrLen;
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cbAttrLen = 0;
  if (cbAttrLen == SCARD_AUTOALLOCATE)
    cbAttrLen = 0;
 
  if (ret->pbAttr)
  {
    if (cbAttrCallLen < cbAttrLen)
      cbAttrLen = cbAttrCallLen;
  }
  Stream_Write_UINT32(s, cbAttrLen); /* cbAttrLen (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, cbAttrLen))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_ndr_write(s, ret->pbAttr, cbAttrLen, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_control_call(wStream* s, Control_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  UINT32 index = 0;
  UINT32 pvInBufferNdrPtr = 0;
  UINT32 pbContextNdrPtr = 0;
 
  call->pvInBuffer = nullptr;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 20))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->dwControlCode);  /* dwControlCode (4 bytes) */
  const UINT32 cbInBufferSize = Stream_Get_UINT32(s); /* cbInBufferSize (4 bytes) */
  if (!smartcard_ndr_pointer_read(log, s, &index,
                                  &pvInBufferNdrPtr)) /* pvInBufferNdrPtr (4 bytes) */
    return ERROR_INVALID_DATA;
  Stream_Read_INT32(s, call->fpvOutBufferIsNULL); /* fpvOutBufferIsNULL (4 bytes) */
  Stream_Read_UINT32(s, call->cbOutBufferSize);   /* cbOutBufferSize (4 bytes) */
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (pvInBufferNdrPtr)
  {
    status = smartcard_ndr_read(log, s, &call->pvInBuffer, cbInBufferSize, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cbInBufferSize = cbInBufferSize;
  }
 
  smartcard_trace_control_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_control_return(wStream* s, const Control_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  LONG status = 0;
  DWORD cbDataLen = ret->cbOutBufferSize;
  UINT32 index = 0;
 
  smartcard_trace_control_return(log, ret);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cbDataLen = 0;
  if (cbDataLen == SCARD_AUTOALLOCATE)
    cbDataLen = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_F_INTERNAL_ERROR;
 
  Stream_Write_UINT32(s, cbDataLen); /* cbOutBufferSize (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, cbDataLen))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_ndr_write(s, ret->pvOutBuffer, cbDataLen, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_transmit_call(wStream* s, Transmit_Call* call)
{
  UINT32 length = 0;
  BYTE* pbExtraBytes = nullptr;
  UINT32 pbExtraBytesNdrPtr = 0;
  UINT32 pbSendBufferNdrPtr = 0;
  UINT32 pioRecvPciNdrPtr = 0;
  SCardIO_Request ioSendPci;
  SCardIO_Request ioRecvPci;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  call->pioSendPci = nullptr;
  call->pioRecvPci = nullptr;
  call->pbSendBuffer = nullptr;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 32))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, ioSendPci.dwProtocol);   /* dwProtocol (4 bytes) */
  Stream_Read_UINT32(s, ioSendPci.cbExtraBytes); /* cbExtraBytes (4 bytes) */
  if (!smartcard_ndr_pointer_read(log, s, &index,
                                  &pbExtraBytesNdrPtr)) /* pbExtraBytesNdrPtr (4 bytes) */
    return ERROR_INVALID_DATA;
 
  const UINT32 cbSendLength = Stream_Get_UINT32(s); /* cbSendLength (4 bytes) */
  if (!smartcard_ndr_pointer_read(log, s, &index,
                                  &pbSendBufferNdrPtr)) /* pbSendBufferNdrPtr (4 bytes) */
    return ERROR_INVALID_DATA;
 
  if (!smartcard_ndr_pointer_read(log, s, &index,
                                  &pioRecvPciNdrPtr)) /* pioRecvPciNdrPtr (4 bytes) */
    return ERROR_INVALID_DATA;
 
  Stream_Read_INT32(s, call->fpbRecvBufferIsNULL); /* fpbRecvBufferIsNULL (4 bytes) */
  Stream_Read_UINT32(s, call->cbRecvLength);       /* cbRecvLength (4 bytes) */
 
  if (ioSendPci.cbExtraBytes > 1024)
  {
    WLog_Print(log, WLOG_WARN,
               "Transmit_Call ioSendPci.cbExtraBytes is out of bounds: %" PRIu32 " (max: 1024)",
               ioSendPci.cbExtraBytes);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (cbSendLength > 66560)
  {
    WLog_Print(log, WLOG_WARN,
               "Transmit_Call cbSendLength is out of bounds: %" PRIu32 " (max: 66560)",
               ioSendPci.cbExtraBytes);
    return STATUS_INVALID_PARAMETER;
  }
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (ioSendPci.cbExtraBytes && !pbExtraBytesNdrPtr)
  {
    WLog_Print(
        log, WLOG_WARN,
        "Transmit_Call ioSendPci.cbExtraBytes is non-zero but pbExtraBytesNdrPtr is null");
    return STATUS_INVALID_PARAMETER;
  }
 
  if (pbExtraBytesNdrPtr)
  {
    // TODO: Use unified pointer reading
    if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
      return STATUS_BUFFER_TOO_SMALL;
 
    Stream_Read_UINT32(s, length); /* Length (4 bytes) */
 
    if (!Stream_CheckAndLogRequiredLengthWLog(log, s, ioSendPci.cbExtraBytes))
      return STATUS_BUFFER_TOO_SMALL;
 
    ioSendPci.pbExtraBytes = Stream_Pointer(s);
    call->pioSendPci =
        (LPSCARD_IO_REQUEST)malloc(sizeof(SCARD_IO_REQUEST) + ioSendPci.cbExtraBytes);
 
    if (!call->pioSendPci)
    {
      WLog_Print(log, WLOG_WARN, "Transmit_Call out of memory error (pioSendPci)");
      return STATUS_NO_MEMORY;
    }
 
    call->pioSendPci->dwProtocol = ioSendPci.dwProtocol;
    call->pioSendPci->cbPciLength = (DWORD)(ioSendPci.cbExtraBytes + sizeof(SCARD_IO_REQUEST));
    pbExtraBytes = &((BYTE*)call->pioSendPci)[sizeof(SCARD_IO_REQUEST)];
    Stream_Read(s, pbExtraBytes, ioSendPci.cbExtraBytes);
    if (smartcard_unpack_read_size_align(s, ioSendPci.cbExtraBytes, 4) < 0)
      return STATUS_INVALID_PARAMETER;
  }
  else
  {
    call->pioSendPci = (LPSCARD_IO_REQUEST)calloc(1, sizeof(SCARD_IO_REQUEST));
 
    if (!call->pioSendPci)
    {
      WLog_Print(log, WLOG_WARN, "Transmit_Call out of memory error (pioSendPci)");
      return STATUS_NO_MEMORY;
    }
 
    call->pioSendPci->dwProtocol = ioSendPci.dwProtocol;
    call->pioSendPci->cbPciLength = sizeof(SCARD_IO_REQUEST);
  }
 
  if (pbSendBufferNdrPtr)
  {
    status = smartcard_ndr_read(log, s, &call->pbSendBuffer, cbSendLength, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cbSendLength = cbSendLength;
  }
 
  if (pioRecvPciNdrPtr)
  {
    if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 12))
      return STATUS_BUFFER_TOO_SMALL;
 
    Stream_Read_UINT32(s, ioRecvPci.dwProtocol);   /* dwProtocol (4 bytes) */
    Stream_Read_UINT32(s, ioRecvPci.cbExtraBytes); /* cbExtraBytes (4 bytes) */
    if (!smartcard_ndr_pointer_read(log, s, &index,
                                    &pbExtraBytesNdrPtr)) /* pbExtraBytesNdrPtr (4 bytes) */
      return ERROR_INVALID_DATA;
 
    if (ioRecvPci.cbExtraBytes && !pbExtraBytesNdrPtr)
    {
      WLog_Print(
          log, WLOG_WARN,
          "Transmit_Call ioRecvPci.cbExtraBytes is non-zero but pbExtraBytesNdrPtr is null");
      return STATUS_INVALID_PARAMETER;
    }
 
    if (pbExtraBytesNdrPtr)
    {
      // TODO: Unify ndr pointer reading
      if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
        return STATUS_BUFFER_TOO_SMALL;
 
      Stream_Read_UINT32(s, length); /* Length (4 bytes) */
 
      if (ioRecvPci.cbExtraBytes > 1024)
      {
        WLog_Print(log, WLOG_WARN,
                   "Transmit_Call ioRecvPci.cbExtraBytes is out of bounds: %" PRIu32
                   " (max: 1024)",
                   ioRecvPci.cbExtraBytes);
        return STATUS_INVALID_PARAMETER;
      }
 
      if (length != ioRecvPci.cbExtraBytes)
      {
        WLog_Print(log, WLOG_WARN,
                   "Transmit_Call unexpected length: Actual: %" PRIu32
                   ", Expected: %" PRIu32 " (ioRecvPci.cbExtraBytes)",
                   length, ioRecvPci.cbExtraBytes);
        return STATUS_INVALID_PARAMETER;
      }
 
      if (!Stream_CheckAndLogRequiredLengthWLog(log, s, ioRecvPci.cbExtraBytes))
        return STATUS_BUFFER_TOO_SMALL;
 
      ioRecvPci.pbExtraBytes = Stream_Pointer(s);
      call->pioRecvPci =
          (LPSCARD_IO_REQUEST)malloc(sizeof(SCARD_IO_REQUEST) + ioRecvPci.cbExtraBytes);
 
      if (!call->pioRecvPci)
      {
        WLog_Print(log, WLOG_WARN, "Transmit_Call out of memory error (pioRecvPci)");
        return STATUS_NO_MEMORY;
      }
 
      call->pioRecvPci->dwProtocol = ioRecvPci.dwProtocol;
      call->pioRecvPci->cbPciLength =
          (DWORD)(ioRecvPci.cbExtraBytes + sizeof(SCARD_IO_REQUEST));
      pbExtraBytes = &((BYTE*)call->pioRecvPci)[sizeof(SCARD_IO_REQUEST)];
      Stream_Read(s, pbExtraBytes, ioRecvPci.cbExtraBytes);
      if (smartcard_unpack_read_size_align(s, ioRecvPci.cbExtraBytes, 4) < 0)
        return STATUS_INVALID_PARAMETER;
    }
    else
    {
      call->pioRecvPci = (LPSCARD_IO_REQUEST)calloc(1, sizeof(SCARD_IO_REQUEST));
 
      if (!call->pioRecvPci)
      {
        WLog_Print(log, WLOG_WARN, "Transmit_Call out of memory error (pioRecvPci)");
        return STATUS_NO_MEMORY;
      }
 
      call->pioRecvPci->dwProtocol = ioRecvPci.dwProtocol;
      call->pioRecvPci->cbPciLength = sizeof(SCARD_IO_REQUEST);
    }
  }
 
  smartcard_trace_transmit_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_transmit_return(wStream* s, const Transmit_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  LONG status = 0;
  UINT32 index = 0;
  LONG error = 0;
  UINT32 cbRecvLength = ret->cbRecvLength;
  UINT32 cbRecvPci = ret->pioRecvPci ? ret->pioRecvPci->cbPciLength : 0;
 
  smartcard_trace_transmit_return(log, ret);
 
  if (!ret->pbRecvBuffer)
    cbRecvLength = 0;
 
  if (!smartcard_ndr_pointer_write(s, &index, cbRecvPci))
    return SCARD_E_NO_MEMORY;
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
  Stream_Write_UINT32(s, cbRecvLength); /* cbRecvLength (4 bytes) */
  if (!smartcard_ndr_pointer_write(s, &index, cbRecvLength))
    return SCARD_E_NO_MEMORY;
 
  if (ret->pioRecvPci)
  {
    UINT32 cbExtraBytes = (UINT32)(ret->pioRecvPci->cbPciLength - sizeof(SCARD_IO_REQUEST));
    BYTE* pbExtraBytes = &((BYTE*)ret->pioRecvPci)[sizeof(SCARD_IO_REQUEST)];
 
    if (!Stream_EnsureRemainingCapacity(s, cbExtraBytes + 16))
    {
      WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
      return SCARD_F_INTERNAL_ERROR;
    }
 
    Stream_Write_UINT32(s, ret->pioRecvPci->dwProtocol); /* dwProtocol (4 bytes) */
    Stream_Write_UINT32(s, cbExtraBytes);                /* cbExtraBytes (4 bytes) */
    if (!smartcard_ndr_pointer_write(s, &index, cbExtraBytes))
      return SCARD_E_NO_MEMORY;
    error = smartcard_ndr_write(s, pbExtraBytes, cbExtraBytes, 1, NDR_PTR_SIMPLE);
    if (error)
      return error;
  }
 
  status = smartcard_ndr_write(s, ret->pbRecvBuffer, ret->cbRecvLength, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_unpack_locate_cards_by_atr_a_call(wStream* s, LocateCardsByATRA_Call* call)
{
  UINT32 rgReaderStatesNdrPtr = 0;
  UINT32 rgAtrMasksNdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  call->rgReaderStates = nullptr;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 16))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->cAtrs);
  if (!smartcard_ndr_pointer_read(log, s, &index, &rgAtrMasksNdrPtr))
    return ERROR_INVALID_DATA;
  const DWORD cReaders = Stream_Get_UINT32(s); /* cReaders (4 bytes) */
  if (!smartcard_ndr_pointer_read(log, s, &index, &rgReaderStatesNdrPtr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if ((rgAtrMasksNdrPtr && !call->cAtrs) || (!rgAtrMasksNdrPtr && call->cAtrs))
  {
    WLog_Print(log, WLOG_WARN,
               "LocateCardsByATRA_Call rgAtrMasksNdrPtr (0x%08" PRIX32
               ") and cAtrs (0x%08" PRIX32 ") inconsistency",
               rgAtrMasksNdrPtr, call->cAtrs);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (rgAtrMasksNdrPtr)
  {
    status = smartcard_ndr_read_atrmask(log, s, &call->rgAtrMasks, call->cAtrs, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  if (rgReaderStatesNdrPtr)
  {
    status = smartcard_unpack_reader_state_a(log, s, &call->rgReaderStates, cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cReaders = cReaders;
  }
 
  smartcard_trace_locate_cards_by_atr_a_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_context_and_two_strings_a_call(wStream* s, ContextAndTwoStringA_Call* call)
{
  UINT32 sz1NdrPtr = 0;
  UINT32 sz2NdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz1NdrPtr))
    return ERROR_INVALID_DATA;
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz2NdrPtr))
    return ERROR_INVALID_DATA;
 
  status =
      smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (sz1NdrPtr)
  {
    status = smartcard_ndr_read_a(log, s, &call->sz1, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
  if (sz2NdrPtr)
  {
    status = smartcard_ndr_read_a(log, s, &call->sz2, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
  smartcard_trace_context_and_two_strings_a_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_context_and_two_strings_w_call(wStream* s, ContextAndTwoStringW_Call* call)
{
  UINT32 sz1NdrPtr = 0;
  UINT32 sz2NdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz1NdrPtr))
    return ERROR_INVALID_DATA;
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz2NdrPtr))
    return ERROR_INVALID_DATA;
 
  status =
      smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (sz1NdrPtr)
  {
    status = smartcard_ndr_read_w(log, s, &call->sz1, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
  if (sz2NdrPtr)
  {
    status = smartcard_ndr_read_w(log, s, &call->sz2, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
  smartcard_trace_context_and_two_strings_w_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_locate_cards_a_call(wStream* s, LocateCardsA_Call* call)
{
  UINT32 sz1NdrPtr = 0;
  UINT32 sz2NdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 16))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cBytes = Stream_Get_UINT32(s);
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz1NdrPtr))
    return ERROR_INVALID_DATA;
 
  const DWORD cReaders = Stream_Get_UINT32(s);
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz2NdrPtr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (sz1NdrPtr)
  {
    status = smartcard_ndr_read_fixed_string_a(log, s, &call->mszCards, cBytes, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cBytes = cBytes;
  }
  if (sz2NdrPtr)
  {
    status = smartcard_unpack_reader_state_a(log, s, &call->rgReaderStates, cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cReaders = cReaders;
  }
  smartcard_trace_locate_cards_a_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_locate_cards_w_call(wStream* s, LocateCardsW_Call* call)
{
  UINT32 sz1NdrPtr = 0;
  UINT32 sz2NdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 16))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cBytes = Stream_Get_UINT32(s);
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz1NdrPtr))
    return ERROR_INVALID_DATA;
 
  const DWORD cReaders = Stream_Get_UINT32(s);
  if (!smartcard_ndr_pointer_read(log, s, &index, &sz2NdrPtr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (sz1NdrPtr)
  {
    status = smartcard_ndr_read_fixed_string_w(log, s, &call->mszCards, cBytes, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cBytes = cBytes;
  }
  if (sz2NdrPtr)
  {
    status = smartcard_unpack_reader_state_w(log, s, &call->rgReaderStates, cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cReaders = cReaders;
  }
  smartcard_trace_locate_cards_w_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_set_attrib_call(wStream* s, SetAttrib_Call* call)
{
  UINT32 index = 0;
  UINT32 ndrPtr = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 12))
    return STATUS_BUFFER_TOO_SMALL;
  Stream_Read_UINT32(s, call->dwAttrId);
  Stream_Read_UINT32(s, call->cbAttrLen);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &ndrPtr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (ndrPtr)
  {
    size_t len = 0;
    status = smartcard_ndr_read_ex(log, s, &call->pbAttr, 0, 1, NDR_PTR_SIMPLE, &len);
    if (status != SCARD_S_SUCCESS)
      return status;
    if (call->cbAttrLen > len)
      call->cbAttrLen = WINPR_ASSERTING_INT_CAST(DWORD, len);
  }
  else
    call->cbAttrLen = 0;
  smartcard_trace_set_attrib_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_set_attrib_call(wStream* s, const SetAttrib_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_set_attrib_call(log, call);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &call->handles.hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwAttrId);
  Stream_Write_UINT32(s, call->cbAttrLen);
 
  if (!smartcard_ndr_pointer_write(s, &index, call->cbAttrLen))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle_ref(log, s, &call->handles.hCard);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_ndr_write(s, call->pbAttr, call->cbAttrLen, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_locate_cards_by_atr_w_call(wStream* s, LocateCardsByATRW_Call* call)
{
  UINT32 rgReaderStatesNdrPtr = 0;
  UINT32 rgAtrMasksNdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  call->rgReaderStates = nullptr;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 16))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->cAtrs);
  if (!smartcard_ndr_pointer_read(log, s, &index, &rgAtrMasksNdrPtr))
    return ERROR_INVALID_DATA;
 
  const DWORD cReaders = Stream_Get_UINT32(s); /* cReaders (4 bytes) */
  if (!smartcard_ndr_pointer_read(log, s, &index, &rgReaderStatesNdrPtr))
    return ERROR_INVALID_DATA;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if ((rgAtrMasksNdrPtr && !call->cAtrs) || (!rgAtrMasksNdrPtr && call->cAtrs))
  {
    WLog_Print(log, WLOG_WARN,
               "LocateCardsByATRW_Call rgAtrMasksNdrPtr (0x%08" PRIX32
               ") and cAtrs (0x%08" PRIX32 ") inconsistency",
               rgAtrMasksNdrPtr, call->cAtrs);
    return STATUS_INVALID_PARAMETER;
  }
 
  if (rgAtrMasksNdrPtr)
  {
    status = smartcard_ndr_read_atrmask(log, s, &call->rgAtrMasks, call->cAtrs, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  if (rgReaderStatesNdrPtr)
  {
    status = smartcard_unpack_reader_state_w(log, s, &call->rgReaderStates, cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->cReaders = cReaders;
  }
 
  smartcard_trace_locate_cards_by_atr_w_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_read_cache_a_call(wStream* s, ReadCacheA_Call* call)
{
  UINT32 mszNdrPtr = 0;
  UINT32 contextNdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszNdrPtr))
    return ERROR_INVALID_DATA;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->Common.handles.hContext),
                                                     &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &contextNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 12))
    return STATUS_BUFFER_TOO_SMALL;
  Stream_Read_UINT32(s, call->Common.FreshnessCounter);
  Stream_Read_INT32(s, call->Common.fPbDataIsNULL);
  Stream_Read_UINT32(s, call->Common.cbDataLen);
 
  call->szLookupName = nullptr;
  if (mszNdrPtr)
  {
    status = smartcard_ndr_read_a(log, s, &call->szLookupName, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &call->Common.handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (contextNdrPtr)
  {
    status = smartcard_ndr_read_u(log, s, &call->Common.CardIdentifier);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
  smartcard_trace_read_cache_a_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_read_cache_w_call(wStream* s, ReadCacheW_Call* call)
{
  UINT32 mszNdrPtr = 0;
  UINT32 contextNdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszNdrPtr))
    return ERROR_INVALID_DATA;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->Common.handles.hContext),
                                                     &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &contextNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 12))
    return STATUS_BUFFER_TOO_SMALL;
  Stream_Read_UINT32(s, call->Common.FreshnessCounter);
  Stream_Read_INT32(s, call->Common.fPbDataIsNULL);
  Stream_Read_UINT32(s, call->Common.cbDataLen);
 
  call->szLookupName = nullptr;
  if (mszNdrPtr)
  {
    status = smartcard_ndr_read_w(log, s, &call->szLookupName, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &call->Common.handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (contextNdrPtr)
  {
    status = smartcard_ndr_read_u(log, s, &call->Common.CardIdentifier);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
  smartcard_trace_read_cache_w_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_write_cache_a_call(wStream* s, WriteCacheA_Call* call)
{
  UINT32 mszNdrPtr = 0;
  UINT32 contextNdrPtr = 0;
  UINT32 pbDataNdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszNdrPtr))
    return ERROR_INVALID_DATA;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->Common.handles.hContext),
                                                     &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &contextNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, call->Common.FreshnessCounter);
  const UINT32 cbDataLen = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &pbDataNdrPtr))
    return ERROR_INVALID_DATA;
 
  call->szLookupName = nullptr;
  if (mszNdrPtr)
  {
    status = smartcard_ndr_read_a(log, s, &call->szLookupName, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &call->Common.handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  call->Common.CardIdentifier = nullptr;
  if (contextNdrPtr)
  {
    status = smartcard_ndr_read_u(log, s, &call->Common.CardIdentifier);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  call->Common.pbData = nullptr;
  if (pbDataNdrPtr)
  {
    status = smartcard_ndr_read(log, s, &call->Common.pbData, cbDataLen, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->Common.cbDataLen = cbDataLen;
  }
  smartcard_trace_write_cache_a_call(log, call);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_write_cache_w_call(wStream* s, WriteCacheW_Call* call)
{
  UINT32 mszNdrPtr = 0;
  UINT32 contextNdrPtr = 0;
  UINT32 pbDataNdrPtr = 0;
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszNdrPtr))
    return ERROR_INVALID_DATA;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->Common.handles.hContext),
                                                     &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &contextNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
  Stream_Read_UINT32(s, call->Common.FreshnessCounter);
  const UINT32 cbDataLen = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &pbDataNdrPtr))
    return ERROR_INVALID_DATA;
 
  call->szLookupName = nullptr;
  if (mszNdrPtr)
  {
    status = smartcard_ndr_read_w(log, s, &call->szLookupName, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &call->Common.handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  call->Common.CardIdentifier = nullptr;
  if (contextNdrPtr)
  {
    status = smartcard_ndr_read_u(log, s, &call->Common.CardIdentifier);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  call->Common.pbData = nullptr;
  if (pbDataNdrPtr)
  {
    status = smartcard_ndr_read(log, s, &call->Common.pbData, cbDataLen, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    call->Common.cbDataLen = cbDataLen;
  }
  smartcard_trace_write_cache_w_call(log, call);
  return status;
}
 
LONG smartcard_unpack_get_transmit_count_call(wStream* s, GetTransmitCount_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
 
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  LONG status = smartcard_unpack_redir_scard_context(log, s, &(call->handles.hContext), &index,
                                                     &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &(call->handles.hCard), &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr,
                                                    &(call->handles.hContext));
  if (status != SCARD_S_SUCCESS)
  {
    WLog_Print(log, WLOG_ERROR,
               "smartcard_unpack_redir_scard_context_ref failed with error %" PRId32 "",
               status);
    return status;
  }
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &(call->handles.hCard));
  if (status != SCARD_S_SUCCESS)
    WLog_Print(log, WLOG_ERROR,
               "smartcard_unpack_redir_scard_handle_ref failed with error %" PRId32 "", status);
 
  smartcard_trace_get_transmit_count_call(log, call);
  return status;
}
 
LONG smartcard_unpack_get_reader_icon_call(wStream* s, GetReaderIcon_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  return smartcard_unpack_common_context_and_string_w(log, s, &call->handles.hContext,
                                                      &call->szReaderName);
}
 
LONG smartcard_unpack_context_and_string_a_call(wStream* s, ContextAndStringA_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  return smartcard_unpack_common_context_and_string_a(log, s, &call->handles.hContext, &call->sz);
}
 
LONG smartcard_unpack_context_and_string_w_call(wStream* s, ContextAndStringW_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  return smartcard_unpack_common_context_and_string_w(log, s, &call->handles.hContext, &call->sz);
}
 
LONG smartcard_unpack_get_device_type_id_call(wStream* s, GetDeviceTypeId_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  return smartcard_unpack_common_context_and_string_w(log, s, &call->handles.hContext,
                                                      &call->szReaderName);
}
 
LONG smartcard_pack_device_type_id_return(wStream* s, const GetDeviceTypeId_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  smartcard_trace_device_type_id_return(log, ret);
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
  {
    WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
    return SCARD_F_INTERNAL_ERROR;
  }
 
  Stream_Write_UINT32(s, ret->dwDeviceId); /* cBytes (4 bytes) */
 
  return ret->ReturnCode;
}
 
LONG smartcard_pack_locate_cards_return(wStream* s, const LocateCards_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  LONG status = 0;
  DWORD cbDataLen = ret->cReaders;
  UINT32 index = 0;
 
  smartcard_trace_locate_cards_return(log, ret);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cbDataLen = 0;
  if (cbDataLen == SCARD_AUTOALLOCATE)
    cbDataLen = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
  {
    WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
    return SCARD_F_INTERNAL_ERROR;
  }
 
  Stream_Write_UINT32(s, cbDataLen); /* cBytes (4 cbDataLen) */
  if (!smartcard_ndr_pointer_write(s, &index, cbDataLen))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_ndr_write_state(s, ret->rgReaderStates, cbDataLen, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_pack_get_reader_icon_return(wStream* s, const GetReaderIcon_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  LONG status = 0;
  UINT32 index = 0;
  DWORD cbDataLen = ret->cbDataLen;
  smartcard_trace_get_reader_icon_return(log, ret);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cbDataLen = 0;
  if (cbDataLen == SCARD_AUTOALLOCATE)
    cbDataLen = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
  {
    WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
    return SCARD_F_INTERNAL_ERROR;
  }
 
  Stream_Write_UINT32(s, cbDataLen); /* cBytes (4 cbDataLen) */
  if (!smartcard_ndr_pointer_write(s, &index, cbDataLen))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_ndr_write(s, ret->pbData, cbDataLen, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_pack_get_transmit_count_return(wStream* s, const GetTransmitCount_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  smartcard_trace_get_transmit_count_return(log, ret);
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
  {
    WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
    return SCARD_F_INTERNAL_ERROR;
  }
 
  Stream_Write_UINT32(s, ret->cTransmitCount); /* cBytes (4 cbDataLen) */
 
  return ret->ReturnCode;
}
 
LONG smartcard_pack_read_cache_return(wStream* s, const ReadCache_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
 
  LONG status = 0;
  UINT32 index = 0;
  DWORD cbDataLen = ret->cbDataLen;
  smartcard_trace_read_cache_return(log, ret);
  if (ret->ReturnCode != SCARD_S_SUCCESS)
    cbDataLen = 0;
 
  if (cbDataLen == SCARD_AUTOALLOCATE)
    cbDataLen = 0;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
  {
    WLog_Print(log, WLOG_ERROR, "Stream_EnsureRemainingCapacity failed!");
    return SCARD_F_INTERNAL_ERROR;
  }
 
  Stream_Write_UINT32(s, cbDataLen); /* cBytes (4 cbDataLen) */
  if (!smartcard_ndr_pointer_write(s, &index, cbDataLen))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_ndr_write(s, ret->pbData, cbDataLen, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  return ret->ReturnCode;
}
 
LONG smartcard_pack_context_call(wStream* s, const Context_Call* call, const char* name)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_context_call(log, call, name);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
}
 
LONG smartcard_pack_list_readers_call(wStream* s, const ListReaders_Call* call, BOOL unicode)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_list_readers_call(log, call, unicode);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->cBytes);
  if (!smartcard_ndr_pointer_write(s, &index, call->cBytes))
    return SCARD_E_NO_MEMORY;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_INT32(s, call->fmszReadersIsNULL);
  Stream_Write_UINT32(s, call->cchReaders);
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (call->cBytes > 0)
  {
    status = smartcard_ndr_write(s, call->mszGroups, call->cBytes, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  return SCARD_S_SUCCESS;
}
 
static LONG smartcard_pack_reader_state_a(wStream* s, const LPSCARD_READERSTATEA rgReaderStates,
                                          UINT32 cReaders, UINT32* ptrIndex)
{
  WINPR_ASSERT(rgReaderStates || (cReaders == 0));
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, cReaders);
 
  for (UINT32 i = 0; i < cReaders; i++)
  {
    const SCARD_READERSTATEA* state = &rgReaderStates[i];
 
    if (!Stream_EnsureRemainingCapacity(s, 52))
      return SCARD_E_NO_MEMORY;
 
    const DWORD nameLen = state->szReader ? (DWORD)(strlen(state->szReader) + 1) : 0;
    if (!smartcard_ndr_pointer_write(s, ptrIndex, nameLen))
      return SCARD_E_NO_MEMORY;
 
    Stream_Write_UINT32(s, state->dwCurrentState);
    Stream_Write_UINT32(s, state->dwEventState);
    Stream_Write_UINT32(s, state->cbAtr);
    Stream_Write(s, state->rgbAtr, 36);
  }
 
  for (UINT32 i = 0; i < cReaders; i++)
  {
    const SCARD_READERSTATEA* state = &rgReaderStates[i];
 
    if (state->szReader)
    {
      const UINT32 nameLen = (UINT32)(strlen(state->szReader) + 1);
      LONG status = smartcard_ndr_write_a(s, state->szReader, nameLen, NDR_PTR_FULL);
      if (status != SCARD_S_SUCCESS)
        return status;
    }
  }
 
  return SCARD_S_SUCCESS;
}
 
static LONG smartcard_pack_reader_state_w(wStream* s, const LPSCARD_READERSTATEW rgReaderStates,
                                          UINT32 cReaders, UINT32* ptrIndex)
{
  WINPR_ASSERT(rgReaderStates || (cReaders == 0));
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, cReaders);
 
  for (UINT32 i = 0; i < cReaders; i++)
  {
    const SCARD_READERSTATEW* state = &rgReaderStates[i];
 
    if (!Stream_EnsureRemainingCapacity(s, 52))
      return SCARD_E_NO_MEMORY;
 
    const DWORD nameLen = state->szReader ? (DWORD)(_wcslen(state->szReader) + 1) : 0;
    if (!smartcard_ndr_pointer_write(s, ptrIndex, nameLen))
      return SCARD_E_NO_MEMORY;
 
    Stream_Write_UINT32(s, state->dwCurrentState);
    Stream_Write_UINT32(s, state->dwEventState);
    Stream_Write_UINT32(s, state->cbAtr);
    Stream_Write(s, state->rgbAtr, 36);
  }
 
  for (UINT32 i = 0; i < cReaders; i++)
  {
    const SCARD_READERSTATEW* state = &rgReaderStates[i];
 
    if (state->szReader)
    {
      const UINT32 nameLen = (UINT32)(_wcslen(state->szReader) + 1);
      LONG status = smartcard_ndr_write_w(s, state->szReader, nameLen, NDR_PTR_FULL);
      if (status != SCARD_S_SUCCESS)
        return status;
    }
  }
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_get_status_change_a_call(wStream* s, const GetStatusChangeA_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_get_status_change_a_call(log, call);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwTimeOut);
  Stream_Write_UINT32(s, call->cReaders);
 
  if (!smartcard_ndr_pointer_write(s, &index, call->cReaders))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (call->cReaders > 0)
  {
    status = smartcard_pack_reader_state_a(s, call->rgReaderStates, call->cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_get_status_change_w_call(wStream* s, const GetStatusChangeW_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_get_status_change_w_call(log, call);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwTimeOut);
  Stream_Write_UINT32(s, call->cReaders);
 
  if (!smartcard_ndr_pointer_write(s, &index, call->cReaders))
    return SCARD_E_NO_MEMORY;
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (call->cReaders > 0)
  {
    status = smartcard_pack_reader_state_w(s, call->rgReaderStates, call->cReaders, &index);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_connect_a_call(wStream* s, const ConnectA_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_connect_a_call(log, call);
 
  const DWORD readerLen = call->szReader ? (DWORD)(strlen(call->szReader) + 1) : 0;
  if (!smartcard_ndr_pointer_write(s, &index, readerLen))
    return SCARD_E_NO_MEMORY;
 
  LONG status =
      smartcard_pack_redir_scard_context(log, s, &call->Common.handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->Common.dwShareMode);
  Stream_Write_UINT32(s, call->Common.dwPreferredProtocols);
 
  if (call->szReader)
  {
    status = smartcard_ndr_write_a(s, call->szReader, readerLen, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  return smartcard_pack_redir_scard_context_ref(log, s, &call->Common.handles.hContext);
}
 
LONG smartcard_pack_connect_w_call(wStream* s, const ConnectW_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_connect_w_call(log, call);
 
  const DWORD readerLen = call->szReader ? (DWORD)(_wcslen(call->szReader) + 1) : 0;
  if (!smartcard_ndr_pointer_write(s, &index, readerLen))
    return SCARD_E_NO_MEMORY;
 
  LONG status =
      smartcard_pack_redir_scard_context(log, s, &call->Common.handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->Common.dwShareMode);
  Stream_Write_UINT32(s, call->Common.dwPreferredProtocols);
 
  if (call->szReader)
  {
    status = smartcard_ndr_write_w(s, call->szReader, readerLen, NDR_PTR_FULL);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  return smartcard_pack_redir_scard_context_ref(log, s, &call->Common.handles.hContext);
}
 
LONG smartcard_pack_control_call(wStream* s, const Control_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_control_call(log, call);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &call->handles.hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 8))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwControlCode);
  Stream_Write_UINT32(s, call->cbInBufferSize);
  if (!smartcard_ndr_pointer_write(s, &index, call->cbInBufferSize))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_INT32(s, call->fpvOutBufferIsNULL);
  Stream_Write_UINT32(s, call->cbOutBufferSize);
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle_ref(log, s, &call->handles.hCard);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (call->cbInBufferSize)
  {
    status = smartcard_ndr_write(s, call->pvInBuffer, call->cbInBufferSize, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  return status;
}
 
LONG smartcard_pack_hcard_and_disposition_call(wStream* s, const HCardAndDisposition_Call* call,
                                               const char* name)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_hcard_and_disposition_call(log, call, name);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &call->handles.hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 4))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwDisposition);
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return smartcard_pack_redir_scard_handle_ref(log, s, &call->handles.hCard);
}
 
LONG smartcard_pack_transmit_call(wStream* s, const Transmit_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_transmit_call(log, call);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &call->handles.hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  UINT32 cbExtraBytes = 0;
  const BYTE* pbExtraBytes = nullptr;
  if (call->pioSendPci)
  {
    cbExtraBytes = (UINT32)(call->pioSendPci->cbPciLength - sizeof(SCARD_IO_REQUEST));
    if (cbExtraBytes > 0)
      pbExtraBytes = &((const BYTE*)call->pioSendPci)[sizeof(SCARD_IO_REQUEST)];
  }
 
  if (!Stream_EnsureRemainingCapacity(s, 32))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->pioSendPci ? call->pioSendPci->dwProtocol : 0);
  Stream_Write_UINT32(s, cbExtraBytes);
  if (!smartcard_ndr_pointer_write(s, &index, cbExtraBytes))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->cbSendLength);
  if (!smartcard_ndr_pointer_write(s, &index, call->cbSendLength))
    return SCARD_E_NO_MEMORY;
 
  const UINT32 recvPciLen = call->pioRecvPci ? (UINT32)call->pioRecvPci->cbPciLength : 0;
  if (!smartcard_ndr_pointer_write(s, &index, recvPciLen))
    return SCARD_E_NO_MEMORY;
 
  Stream_Write_INT32(s, call->fpbRecvBufferIsNULL);
  Stream_Write_UINT32(s, call->cbRecvLength);
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle_ref(log, s, &call->handles.hCard);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (cbExtraBytes > 0)
  {
    status = smartcard_ndr_write(s, pbExtraBytes, cbExtraBytes, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  if (call->cbSendLength > 0)
  {
    status = smartcard_ndr_write(s, call->pbSendBuffer, call->cbSendLength, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
 
  if (call->pioRecvPci && recvPciLen > 0)
  {
    UINT32 cbRecvExtra = (UINT32)(call->pioRecvPci->cbPciLength - sizeof(SCARD_IO_REQUEST));
    const BYTE* pbRecvExtra = &((const BYTE*)call->pioRecvPci)[sizeof(SCARD_IO_REQUEST)];
 
    if (!Stream_EnsureRemainingCapacity(s, 12))
      return SCARD_E_NO_MEMORY;
 
    Stream_Write_UINT32(s, call->pioRecvPci->dwProtocol);
    Stream_Write_UINT32(s, cbRecvExtra);
    if (!smartcard_ndr_pointer_write(s, &index, cbRecvExtra))
      return SCARD_E_NO_MEMORY;
 
    if (cbRecvExtra > 0)
    {
      status = smartcard_ndr_write(s, pbRecvExtra, cbRecvExtra, 1, NDR_PTR_SIMPLE);
      if (status != SCARD_S_SUCCESS)
        return status;
    }
  }
 
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_pack_get_attrib_call(wStream* s, const GetAttrib_Call* call)
{
  WINPR_ASSERT(call);
  wLog* log = scard_log();
  DWORD index = 0;
 
  smartcard_trace_get_attrib_call(log, call);
 
  LONG status = smartcard_pack_redir_scard_context(log, s, &call->handles.hContext, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_pack_redir_scard_handle(log, s, &call->handles.hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_EnsureRemainingCapacity(s, 12))
    return STATUS_NO_MEMORY;
 
  Stream_Write_UINT32(s, call->dwAttrId);
  Stream_Write_INT32(s, call->fpbAttrIsNULL);
  Stream_Write_UINT32(s, call->cbAttrLen);
 
  status = smartcard_pack_redir_scard_context_ref(log, s, &call->handles.hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  return smartcard_pack_redir_scard_handle_ref(log, s, &call->handles.hCard);
}
 
LONG smartcard_unpack_list_readers_return(wStream* s, ListReaders_Return* ret, BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 mszNdrPtr = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cBytes = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &mszNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (mszNdrPtr)
  {
    LONG status = smartcard_ndr_read(log, s, &ret->msz, cBytes, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    ret->cBytes = cBytes;
  }
 
  smartcard_trace_list_readers_return(log, ret, unicode);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_get_status_change_return(wStream* s, GetStatusChange_Return* ret,
                                               BOOL unicode)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 ndrPtr = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, ret->cReaders);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &ndrPtr))
    return ERROR_INVALID_DATA;
 
  if (ndrPtr && ret->cReaders > 0)
  {
    LONG status =
        smartcard_ndr_read_state(log, s, &ret->rgReaderStates, ret->cReaders, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
  }
  else
    ret->rgReaderStates = nullptr;
 
  smartcard_trace_get_status_change_return(log, ret, unicode);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_connect_return(wStream* s, Connect_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 pbContextNdrPtr = 0;
 
  LONG status =
      smartcard_unpack_redir_scard_context(log, s, &ret->hContext, &index, &pbContextNdrPtr);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle(log, s, &ret->hCard, &index);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  Stream_Read_UINT32(s, ret->dwActiveProtocol);
 
  status = smartcard_unpack_redir_scard_context_ref(log, s, pbContextNdrPtr, &ret->hContext);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  status = smartcard_unpack_redir_scard_handle_ref(log, s, &ret->hCard);
  if (status != SCARD_S_SUCCESS)
    return status;
 
  smartcard_trace_connect_return(log, ret);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_control_return(wStream* s, Control_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 pvOutBufferNdrPtr = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cbOutBufferSize = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &pvOutBufferNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (pvOutBufferNdrPtr && (cbOutBufferSize > 0))
  {
    LONG status =
        smartcard_ndr_read(log, s, &ret->pvOutBuffer, cbOutBufferSize, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    ret->cbOutBufferSize = cbOutBufferSize;
  }
  smartcard_trace_control_return(log, ret);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_transmit_return(wStream* s, Transmit_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 recvPciNdrPtr = 0;
  UINT32 recvBufferNdrPtr = 0;
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &recvPciNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cbRecvLength = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &recvBufferNdrPtr))
    return ERROR_INVALID_DATA;
 
  if (recvPciNdrPtr)
  {
    if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 8))
      return STATUS_BUFFER_TOO_SMALL;
 
    UINT32 dwProtocol = 0;
    UINT32 cbExtraBytes = 0;
    Stream_Read_UINT32(s, dwProtocol);
    Stream_Read_UINT32(s, cbExtraBytes);
 
    UINT32 pbExtraBytesNdrPtr = 0;
    if (!smartcard_ndr_pointer_read(log, s, &index, &pbExtraBytesNdrPtr))
      return ERROR_INVALID_DATA;
 
    if (pbExtraBytesNdrPtr)
    {
      if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
        return STATUS_BUFFER_TOO_SMALL;
 
      UINT32 length = 0;
      Stream_Read_UINT32(s, length);
      if (length != cbExtraBytes)
      {
        WLog_Print(log, WLOG_WARN,
                   "Transmit_Return unexpected length: Actual: %" PRIu32
                   ", Expected: %" PRIu32 " (pioRecvPci.cbExtraBytes)",
                   length, cbExtraBytes);
        return STATUS_INVALID_PARAMETER;
      }
 
      if (!Stream_CheckAndLogRequiredLengthWLog(log, s, cbExtraBytes))
        return STATUS_BUFFER_TOO_SMALL;
 
      ret->pioRecvPci = (LPSCARD_IO_REQUEST)malloc(sizeof(SCARD_IO_REQUEST) + cbExtraBytes);
      if (!ret->pioRecvPci)
        return SCARD_E_NO_MEMORY;
 
      ret->pioRecvPci->dwProtocol = dwProtocol;
      ret->pioRecvPci->cbPciLength = (DWORD)(sizeof(SCARD_IO_REQUEST) + cbExtraBytes);
 
      BYTE* pbExtraBytes = &((BYTE*)ret->pioRecvPci)[sizeof(SCARD_IO_REQUEST)];
      Stream_Read(s, pbExtraBytes, length);
      if (smartcard_unpack_read_size_align(s, cbExtraBytes, 4) < 0)
        return STATUS_INVALID_PARAMETER;
    }
    else
    {
      ret->pioRecvPci = (LPSCARD_IO_REQUEST)malloc(sizeof(SCARD_IO_REQUEST));
      if (!ret->pioRecvPci)
        return SCARD_E_NO_MEMORY;
 
      ret->pioRecvPci->dwProtocol = dwProtocol;
      ret->pioRecvPci->cbPciLength = sizeof(SCARD_IO_REQUEST);
    }
  }
 
  if (recvBufferNdrPtr && (cbRecvLength > 0))
  {
    LONG status =
        smartcard_ndr_read(log, s, &ret->pbRecvBuffer, cbRecvLength, 1, NDR_PTR_SIMPLE);
    if (status != SCARD_S_SUCCESS)
      return status;
    ret->cbRecvLength = cbRecvLength;
  }
 
  smartcard_trace_transmit_return(log, ret);
  return SCARD_S_SUCCESS;
}
 
LONG smartcard_unpack_get_attrib_return(wStream* s, GetAttrib_Return* ret)
{
  WINPR_ASSERT(ret);
  wLog* log = scard_log();
  UINT32 index = 0;
  UINT32 pbAttrPtr = 0;
 
  if (!Stream_CheckAndLogRequiredLengthWLog(log, s, 4))
    return STATUS_BUFFER_TOO_SMALL;
 
  const UINT32 cbAttrLen = Stream_Get_UINT32(s);
 
  if (!smartcard_ndr_pointer_read(log, s, &index, &pbAttrPtr))
    return ERROR_INVALID_DATA;
 
  LONG status = smartcard_ndr_read(log, s, &ret->pbAttr, cbAttrLen, 1, NDR_PTR_SIMPLE);
  if (status != SCARD_S_SUCCESS)
    return status;
  ret->cbAttrLen = cbAttrLen;
 
  smartcard_trace_get_attrib_return(log, ret, 0);
  return SCARD_S_SUCCESS;
}