1 /* |
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2 Control program for a virtual disk driver for Windows NT/2000/XP. |
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3 Copyright (C) 1999, 2000, 2001, 2002 Bo Brantén. |
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4 This program is free software; you can redistribute it and/or modify |
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5 it under the terms of the GNU General Public License as published by |
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6 the Free Software Foundation; either version 2 of the License, or |
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7 (at your option) any later version. |
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8 This program is distributed in the hope that it will be useful, |
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9 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 GNU General Public License for more details. |
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12 You should have received a copy of the GNU General Public License |
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13 along with this program; if not, write to the Free Software |
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14 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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15 */ |
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16 |
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17 #include <windows.h> |
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18 #include <winioctl.h> |
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19 #include <stdio.h> |
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20 #include <stdlib.h> |
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21 #include "filedisk.h" |
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22 |
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23 int FileDiskSyntax(void) |
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24 { |
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25 fprintf(stderr, "syntax:\n"); |
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26 fprintf(stderr, "filedisk /mount <devicenumber> <filename> [size[k|M|G] | /ro | /cd] <drive:>\n"); |
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27 fprintf(stderr, "filedisk /umount <drive:>\n"); |
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28 fprintf(stderr, "filedisk /status <drive:>\n"); |
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29 fprintf(stderr, "\n"); |
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30 fprintf(stderr, "filename formats:\n"); |
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31 fprintf(stderr, " c:\\path\\filedisk.img\n"); |
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32 fprintf(stderr, " \\Device\\Harddisk0\\Partition1\\path\\filedisk.img\n"); |
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33 fprintf(stderr, " \\\\server\\share\\path\\filedisk.img\n"); |
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34 fprintf(stderr, "\n"); |
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35 fprintf(stderr, "example:\n"); |
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36 fprintf(stderr, "filedisk /mount 0 c:\\temp\\filedisk.img 8M f:\n"); |
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37 fprintf(stderr, "filedisk /mount 1 c:\\temp\\cdimage.iso /cd i:\n"); |
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38 fprintf(stderr, "filedisk /umount f:\n"); |
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39 fprintf(stderr, "filedisk /umount i:\n"); |
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40 |
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41 return -1; |
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42 } |
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43 |
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44 void PrintLastError(char* Prefix) |
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45 { |
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46 LPVOID lpMsgBuf; |
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47 |
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48 FormatMessage( |
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49 FORMAT_MESSAGE_ALLOCATE_BUFFER | |
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50 FORMAT_MESSAGE_FROM_SYSTEM | |
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51 FORMAT_MESSAGE_IGNORE_INSERTS, |
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52 NULL, |
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53 GetLastError(), |
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54 0, |
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55 (LPTSTR) &lpMsgBuf, |
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56 0, |
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57 NULL |
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58 ); |
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59 |
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60 fprintf(stderr, "%s %s", Prefix, (LPTSTR) lpMsgBuf); |
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61 |
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62 LocalFree(lpMsgBuf); |
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63 } |
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64 |
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65 int |
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66 FileDiskMount( |
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67 int DeviceNumber, |
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68 POPEN_FILE_INFORMATION OpenFileInformation, |
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69 char DriveLetter, |
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70 BOOLEAN CdImage |
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71 ) |
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72 { |
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73 char VolumeName[] = "\\\\.\\ :"; |
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74 char DeviceName[255]; |
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75 HANDLE Device; |
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76 DWORD BytesReturned; |
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77 |
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78 VolumeName[4] = DriveLetter; |
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79 |
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80 Device = CreateFile( |
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81 VolumeName, |
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82 GENERIC_READ | GENERIC_WRITE, |
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83 FILE_SHARE_READ | FILE_SHARE_WRITE, |
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84 NULL, |
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85 OPEN_EXISTING, |
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86 FILE_FLAG_NO_BUFFERING, |
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87 NULL |
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88 ); |
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89 |
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90 if (Device != INVALID_HANDLE_VALUE) |
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91 { |
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92 SetLastError(ERROR_BUSY); |
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93 PrintLastError(&VolumeName[4]); |
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94 return -1; |
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95 } |
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96 |
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97 if (CdImage) |
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98 { |
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99 sprintf(DeviceName, DEVICE_NAME_PREFIX "Cd" "%u", DeviceNumber); |
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100 } |
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101 else |
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102 { |
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103 sprintf(DeviceName, DEVICE_NAME_PREFIX "%u", DeviceNumber); |
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104 } |
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105 |
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106 if (!DefineDosDevice( |
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107 DDD_RAW_TARGET_PATH, |
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108 &VolumeName[4], |
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109 DeviceName |
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110 )) |
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111 { |
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112 PrintLastError(&VolumeName[4]); |
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113 return -1; |
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114 } |
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115 |
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116 Device = CreateFile( |
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117 VolumeName, |
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118 GENERIC_READ | GENERIC_WRITE, |
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119 FILE_SHARE_READ | FILE_SHARE_WRITE, |
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120 NULL, |
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121 OPEN_EXISTING, |
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122 FILE_FLAG_NO_BUFFERING, |
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123 NULL |
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124 ); |
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125 |
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126 if (Device == INVALID_HANDLE_VALUE) |
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127 { |
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128 PrintLastError(&VolumeName[4]); |
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129 DefineDosDevice(DDD_REMOVE_DEFINITION, &VolumeName[4], NULL); |
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130 return -1; |
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131 } |
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132 |
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133 if (!DeviceIoControl( |
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134 Device, |
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135 IOCTL_FILE_DISK_OPEN_FILE, |
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136 OpenFileInformation, |
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137 sizeof(OPEN_FILE_INFORMATION) + OpenFileInformation->FileNameLength - 1, |
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138 NULL, |
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139 0, |
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140 &BytesReturned, |
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141 NULL |
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142 )) |
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143 { |
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144 PrintLastError("FileDisk:"); |
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145 DefineDosDevice(DDD_REMOVE_DEFINITION, &VolumeName[4], NULL); |
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146 return -1; |
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147 } |
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148 |
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149 return 0; |
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150 } |
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151 |
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152 int FileDiskUmount(char DriveLetter) |
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153 { |
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154 char VolumeName[] = "\\\\.\\ :"; |
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155 HANDLE Device; |
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156 DWORD BytesReturned; |
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157 |
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158 VolumeName[4] = DriveLetter; |
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159 |
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160 Device = CreateFile( |
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161 VolumeName, |
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162 GENERIC_READ | GENERIC_WRITE, |
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163 FILE_SHARE_READ | FILE_SHARE_WRITE, |
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164 NULL, |
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165 OPEN_EXISTING, |
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166 FILE_FLAG_NO_BUFFERING, |
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167 NULL |
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168 ); |
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169 |
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170 if (Device == INVALID_HANDLE_VALUE) |
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171 { |
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172 PrintLastError(&VolumeName[4]); |
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173 return -1; |
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174 } |
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175 |
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176 if (!DeviceIoControl( |
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177 Device, |
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178 FSCTL_LOCK_VOLUME, |
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179 NULL, |
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180 0, |
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181 NULL, |
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182 0, |
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183 &BytesReturned, |
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184 NULL |
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185 )) |
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186 { |
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187 PrintLastError(&VolumeName[4]); |
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188 return -1; |
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189 } |
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190 |
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191 if (!DeviceIoControl( |
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192 Device, |
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193 IOCTL_FILE_DISK_CLOSE_FILE, |
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194 NULL, |
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195 0, |
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196 NULL, |
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197 0, |
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198 &BytesReturned, |
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199 NULL |
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200 )) |
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201 { |
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202 PrintLastError("FileDisk:"); |
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203 return -1; |
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204 } |
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205 |
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206 if (!DeviceIoControl( |
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207 Device, |
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208 FSCTL_DISMOUNT_VOLUME, |
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209 NULL, |
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210 0, |
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211 NULL, |
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212 0, |
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213 &BytesReturned, |
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214 NULL |
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215 )) |
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216 { |
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217 PrintLastError(&VolumeName[4]); |
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218 return -1; |
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219 } |
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220 |
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221 if (!DeviceIoControl( |
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222 Device, |
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223 FSCTL_UNLOCK_VOLUME, |
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224 NULL, |
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225 0, |
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226 NULL, |
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227 0, |
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228 &BytesReturned, |
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229 NULL |
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230 )) |
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231 { |
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232 PrintLastError(&VolumeName[4]); |
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233 return -1; |
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234 } |
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235 |
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236 CloseHandle(Device); |
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237 |
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238 if (!DefineDosDevice( |
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239 DDD_REMOVE_DEFINITION, |
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240 &VolumeName[4], |
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241 NULL |
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242 )) |
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243 { |
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244 PrintLastError(&VolumeName[4]); |
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245 return -1; |
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246 } |
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247 |
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248 return 0; |
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249 } |
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250 |
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251 int FileDiskStatus(char DriveLetter) |
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252 { |
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253 char VolumeName[] = "\\\\.\\ :"; |
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254 HANDLE Device; |
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255 POPEN_FILE_INFORMATION OpenFileInformation; |
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256 DWORD BytesReturned; |
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257 |
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258 VolumeName[4] = DriveLetter; |
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259 |
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260 Device = CreateFile( |
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261 VolumeName, |
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262 GENERIC_READ, |
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263 FILE_SHARE_READ | FILE_SHARE_WRITE, |
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264 NULL, |
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265 OPEN_EXISTING, |
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266 FILE_FLAG_NO_BUFFERING, |
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267 NULL |
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268 ); |
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269 |
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270 if (Device == INVALID_HANDLE_VALUE) |
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271 { |
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272 PrintLastError(&VolumeName[4]); |
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273 return -1; |
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274 } |
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275 |
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276 OpenFileInformation = malloc(sizeof(OPEN_FILE_INFORMATION) + MAX_PATH); |
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277 |
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278 if (!DeviceIoControl( |
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279 Device, |
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280 IOCTL_FILE_DISK_QUERY_FILE, |
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281 NULL, |
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282 0, |
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283 OpenFileInformation, |
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284 sizeof(OPEN_FILE_INFORMATION) + MAX_PATH, |
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285 &BytesReturned, |
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286 NULL |
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287 )) |
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288 { |
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289 PrintLastError(&VolumeName[4]); |
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290 return -1; |
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291 } |
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292 |
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293 if (BytesReturned < sizeof(OPEN_FILE_INFORMATION)) |
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294 { |
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295 SetLastError(ERROR_INSUFFICIENT_BUFFER); |
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296 PrintLastError(&VolumeName[4]); |
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297 return -1; |
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298 } |
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299 |
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300 printf("%c: %.*s Size: %I64u bytes%s\n", |
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301 DriveLetter, |
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302 OpenFileInformation->FileNameLength, |
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303 OpenFileInformation->FileName, |
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304 OpenFileInformation->FileSize, |
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305 OpenFileInformation->ReadOnly ? ", ReadOnly" : "" |
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306 ); |
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307 |
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308 return 0; |
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309 } |
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310 |
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311 int __cdecl main(int argc, char* argv[]) |
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312 { |
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313 char* Command; |
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314 int DeviceNumber; |
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315 char* FileName; |
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316 char* Option; |
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317 char DriveLetter; |
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318 BOOLEAN CdImage = FALSE; |
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319 POPEN_FILE_INFORMATION OpenFileInformation; |
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320 |
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321 Command = argv[1]; |
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322 |
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323 if ((argc == 5 || argc == 6) && !strcmp(Command, "/mount")) |
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324 { |
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325 DeviceNumber = atoi(argv[2]); |
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326 FileName = argv[3]; |
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327 |
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328 if (strlen(FileName) < 2) |
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329 { |
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330 return FileDiskSyntax(); |
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331 } |
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332 |
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333 OpenFileInformation = |
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334 malloc(sizeof(OPEN_FILE_INFORMATION) + strlen(FileName) + 7); |
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335 |
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336 memset( |
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337 OpenFileInformation, |
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338 0, |
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339 sizeof(OPEN_FILE_INFORMATION) + strlen(FileName) + 7 |
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340 ); |
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341 |
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342 if (FileName[0] == '\\') |
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343 { |
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344 if (FileName[1] == '\\') |
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345 // \\server\share\path\filedisk.img |
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346 { |
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347 strcpy(OpenFileInformation->FileName, "\\??\\UNC"); |
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348 strcat(OpenFileInformation->FileName, FileName + 1); |
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349 } |
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350 else |
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351 // \Device\Harddisk0\Partition1\path\filedisk.img |
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352 { |
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353 strcpy(OpenFileInformation->FileName, FileName); |
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354 } |
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355 } |
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356 else |
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357 // c:\path\filedisk.img |
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358 { |
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359 strcpy(OpenFileInformation->FileName, "\\??\\"); |
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360 strcat(OpenFileInformation->FileName, FileName); |
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361 } |
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362 |
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363 OpenFileInformation->FileNameLength = |
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364 (USHORT) strlen(OpenFileInformation->FileName); |
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365 |
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366 if (argc > 5) |
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367 { |
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368 Option = argv[4]; |
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369 DriveLetter = argv[5][0]; |
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370 |
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371 if (!strcmp(Option, "/ro")) |
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372 { |
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373 OpenFileInformation->ReadOnly = TRUE; |
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374 } |
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375 else if (!strcmp(Option, "/cd")) |
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376 { |
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377 CdImage = TRUE; |
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378 } |
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379 else |
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380 { |
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381 if (Option[strlen(Option) - 1] == 'G') |
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382 { |
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383 OpenFileInformation->FileSize.QuadPart = |
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384 _atoi64(Option) * 1024 * 1024 * 1024; |
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385 } |
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386 else if (Option[strlen(Option) - 1] == 'M') |
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387 { |
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388 OpenFileInformation->FileSize.QuadPart = |
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389 _atoi64(Option) * 1024 * 1024; |
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390 } |
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391 else if (Option[strlen(Option) - 1] == 'k') |
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392 { |
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393 OpenFileInformation->FileSize.QuadPart = |
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394 _atoi64(Option) * 1024; |
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395 } |
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396 else |
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397 { |
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398 OpenFileInformation->FileSize.QuadPart = |
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399 _atoi64(Option); |
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400 } |
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401 } |
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402 } |
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403 else |
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404 { |
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405 DriveLetter = argv[4][0]; |
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406 } |
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407 return FileDiskMount(DeviceNumber, OpenFileInformation, DriveLetter, CdImage); |
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408 } |
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409 else if (argc == 3 && !strcmp(Command, "/umount")) |
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410 { |
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411 DriveLetter = argv[2][0]; |
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412 return FileDiskUmount(DriveLetter); |
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413 } |
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414 else if (argc == 3 && !strcmp(Command, "/status")) |
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415 { |
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416 DriveLetter = argv[2][0]; |
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417 return FileDiskStatus(DriveLetter); |
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418 } |
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419 else |
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420 { |
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421 return FileDiskSyntax(); |
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422 } |
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423 } |
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