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50 lines
1.4 KiB
50 lines
1.4 KiB
4 months ago
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* erofs-utils/include/erofs/xattr.h
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*
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* Originally contributed by an anonymous person,
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* heavily changed by Li Guifu <blucerlee@gmail.com>
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* and Gao Xiang <xiang@kernel.org>
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*/
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#ifndef __EROFS_XATTR_H
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#define __EROFS_XATTR_H
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#include "internal.h"
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#define EROFS_INODE_XATTR_ICOUNT(_size) ({\
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u32 __size = le16_to_cpu(_size); \
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((__size) == 0) ? 0 : \
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(_size - sizeof(struct erofs_xattr_ibody_header)) / \
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sizeof(struct erofs_xattr_entry) + 1; })
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#ifndef XATTR_USER_PREFIX
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#define XATTR_USER_PREFIX "user."
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#endif
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#ifndef XATTR_USER_PREFIX_LEN
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#define XATTR_USER_PREFIX_LEN (sizeof(XATTR_USER_PREFIX) - 1)
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#endif
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#ifndef XATTR_SECURITY_PREFIX
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#define XATTR_SECURITY_PREFIX "security."
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#endif
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#ifndef XATTR_SECURITY_PREFIX_LEN
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#define XATTR_SECURITY_PREFIX_LEN (sizeof(XATTR_SECURITY_PREFIX) - 1)
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#endif
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#ifndef XATTR_TRUSTED_PREFIX
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#define XATTR_TRUSTED_PREFIX "trusted."
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#endif
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#ifndef XATTR_TRUSTED_PREFIX_LEN
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#define XATTR_TRUSTED_PREFIX_LEN (sizeof(XATTR_TRUSTED_PREFIX) - 1)
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#endif
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#ifndef XATTR_NAME_POSIX_ACL_ACCESS
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#define XATTR_NAME_POSIX_ACL_ACCESS "system.posix_acl_access"
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#endif
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#ifndef XATTR_NAME_POSIX_ACL_DEFAULT
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#define XATTR_NAME_POSIX_ACL_DEFAULT "system.posix_acl_default"
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#endif
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int erofs_prepare_xattr_ibody(struct erofs_inode *inode);
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char *erofs_export_xattr_ibody(struct list_head *ixattrs, unsigned int size);
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int erofs_build_shared_xattrs_from_path(const char *path);
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#endif
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