reactos/dll/np/nfs/options.c

102 lines
3 KiB
C

/* NFSv4.1 client for Windows
* Copyright © 2012 The Regents of the University of Michigan
*
* Olga Kornievskaia <aglo@umich.edu>
* Casey Bodley <cbodley@umich.edu>
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* without any warranty; without even the implied warranty of merchantability
* or fitness for a particular purpose. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA
*/
#include <windows.h>
#include "options.h"
DWORD InitializeConnectionInfo(
IN OUT PCONNECTION_INFO Connection,
IN PMOUNT_OPTION_BUFFER Options,
OUT LPWSTR *ConnectionName)
{
DWORD result = WN_SUCCESS;
SIZE_T size;
/* verify that this is a mount options buffer */
if (Options &&
Options->Zero == 0 &&
Options->Secret == MOUNT_OPTION_BUFFER_SECRET)
{
Connection->Options = Options;
size = MAX_CONNECTION_BUFFER_SIZE(Options->Length);
}
else
{
Connection->Options = NULL;
size = MAX_CONNECTION_BUFFER_SIZE(0);
}
Connection->Buffer = LocalAlloc(LMEM_ZEROINIT, size);
if (Connection->Buffer)
*ConnectionName = (LPWSTR)Connection->Buffer->Buffer;
else
result = WN_OUT_OF_MEMORY;
return result;
}
#ifdef __REACTOS__
FORCEINLINE SIZE_T ConnectionBufferSize(
#else
static FORCEINLINE SIZE_T ConnectionBufferSize(
#endif
IN PCONNECTION_BUFFER Buffer)
{
return sizeof(USHORT) + sizeof(USHORT) + sizeof(ULONG) +
Buffer->NameLength + Buffer->EaPadding + Buffer->EaLength;
}
void MarshalConnectionInfo(
IN OUT PCONNECTION_INFO Connection)
{
PCONNECTION_BUFFER Buffer = Connection->Buffer;
LPWSTR ConnectionName = (LPWSTR)Buffer->Buffer;
Buffer->NameLength = (USHORT)(wcslen(ConnectionName) + 1) * sizeof(WCHAR);
/* copy the EaBuffer after the end of ConnectionName */
if (Connection->Options && Connection->Options->Length)
{
PBYTE ptr = Buffer->Buffer + Buffer->NameLength;
/* add padding so EaBuffer starts on a ULONG boundary */
Buffer->EaPadding = (USHORT)
(sizeof(ULONG) - (SIZE_T)ptr % sizeof(ULONG)) % sizeof(ULONG);
Buffer->EaLength = Connection->Options->Length;
ptr += Buffer->EaPadding;
RtlCopyMemory(ptr, Connection->Options->Buffer, Buffer->EaLength);
}
Connection->BufferSize = (ULONG)ConnectionBufferSize(Buffer);
}
void FreeConnectionInfo(
IN PCONNECTION_INFO Connection)
{
if (Connection->Buffer)
{
LocalFree(Connection->Buffer);
Connection->Buffer = NULL;
}
Connection->Options = NULL;
Connection->BufferSize = 0;
}