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38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
/*
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* Metadata on-disk locking for processes serialization
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*
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* Copyright (C) 2016-2017, Red Hat, Inc. All rights reserved.
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* Copyright (C) 2016-2017, Ondrej Kozina. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _CRYPTSETUP_UTILS_LOCKING_H
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#define _CRYPTSETUP_UTILS_LOCKING_H
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struct crypt_device;
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struct crypt_lock_handle;
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int device_locked_readonly(struct crypt_lock_handle *h);
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int device_locked(struct crypt_lock_handle *h);
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struct crypt_lock_handle *device_read_lock_handle(struct crypt_device *cd, const char *device_path);
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struct crypt_lock_handle *device_write_lock_handle(struct crypt_device *cd, const char *device_path);
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void device_unlock_handle(struct crypt_lock_handle *h);
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int device_locked_verify(int fd, struct crypt_lock_handle *h);
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#endif
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