15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2006-2010 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "sandbox/win/tests/common/test_utils.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <winioctl.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef struct _REPARSE_DATA_BUFFER { 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ULONG ReparseTag; 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT ReparseDataLength; 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT Reserved; 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) union { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT SubstituteNameOffset; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT SubstituteNameLength; 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT PrintNameOffset; 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT PrintNameLength; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ULONG Flags; 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WCHAR PathBuffer[1]; 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } SymbolicLinkReparseBuffer; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT SubstituteNameOffset; 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT SubstituteNameLength; 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT PrintNameOffset; 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT PrintNameLength; 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WCHAR PathBuffer[1]; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } MountPointReparseBuffer; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UCHAR DataBuffer[1]; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } GenericReparseBuffer; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER; 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Sets a reparse point. |source| will now point to |target|. Returns true if 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// the call succeeds, false otherwise. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool SetReparsePoint(HANDLE source, const wchar_t* target) { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) USHORT size_target = static_cast<USHORT>(wcslen(target)) * sizeof(target[0]); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char buffer[2000] = {0}; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD returned; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) REPARSE_DATA_BUFFER* data = reinterpret_cast<REPARSE_DATA_BUFFER*>(buffer); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data->ReparseTag = 0xa0000003; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(data->MountPointReparseBuffer.PathBuffer, target, size_target + 2); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data->MountPointReparseBuffer.SubstituteNameLength = size_target; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data->MountPointReparseBuffer.PrintNameOffset = size_target + 2; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data->ReparseDataLength = size_target + 4 + 8; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int data_size = data->ReparseDataLength + 8; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!DeviceIoControl(source, FSCTL_SET_REPARSE_POINT, &buffer, data_size, 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NULL, 0, &returned, NULL)) { 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Delete the reparse point referenced by |source|. Returns true if the call 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// succeeds, false otherwise. 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool DeleteReparsePoint(HANDLE source) { 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DWORD returned; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) REPARSE_DATA_BUFFER data = {0}; 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data.ReparseTag = 0xa0000003; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!DeviceIoControl(source, FSCTL_DELETE_REPARSE_POINT, &data, 8, NULL, 0, 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &returned, NULL)) { 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 73