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6a224a38a1
For instance, when repair is required, we can ask the caller whether we should continue or not in case locking failed. Also, introduced a hack for 1st stage where IopParseDevice() hack is in usage so that broken NTSTATUS is diverted to appropriate status. That way, usetup will properly continue even if locking failed (due to its callback stub!) CORE-14087
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/****
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** Platform-dependent file
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****/
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/* io.h - Virtual disk input/output
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Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
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Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
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Copyright (C) 2008-2014 Daniel Baumann <mail@daniel-baumann.ch>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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The complete text of the GNU General Public License
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can be found in /usr/share/common-licenses/GPL-3 file.
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*/
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/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
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* by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
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#ifndef _IO_H
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#define _IO_H
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//#include <sys/types.h> /* for loff_t */
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// #include <fcntl.h> /* for off_t */
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NTSTATUS fs_open(PUNICODE_STRING DriveRoot, int read_write);
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/* Opens the file system PATH. If RW is zero, the file system is opened
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read-only, otherwise, it is opened read-write. */
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BOOLEAN fs_isdirty(void);
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/* Checks if filesystem is dirty */
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void fs_read(off_t pos, int size, void *data);
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/* Reads SIZE bytes starting at POS into DATA. Performs all applicable
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changes. */
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int fs_test(off_t pos, int size);
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/* Returns a non-zero integer if SIZE bytes starting at POS can be read without
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errors. Otherwise, it returns zero. */
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void fs_write(off_t pos, int size, void *data);
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/* If write_immed is non-zero, SIZE bytes are written from DATA to the disk,
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starting at POS. If write_immed is zero, the change is added to a list in
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memory. */
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int fs_close(int write);
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/* Closes the filesystem, performs all pending changes if WRITE is non-zero
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and removes the list of changes. Returns a non-zero integer if the file
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system has been changed since the last fs_open, zero otherwise. */
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int fs_changed(void);
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/* Determines whether the filesystem has changed. See fs_close. */
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NTSTATUS fs_lock(BOOLEAN LockVolume);
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/* Lock or unlocks the volume */
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void fs_dismount(void);
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/* Dismounts the volume */
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#endif
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