/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2021 Samsung Electronics Co., Ltd. */ #ifndef __XATTR_H__ #define __XATTR_H__ /* * These are on-disk structures to store additional metadata into xattr to * reproduce windows filesystem semantics. And they are encoded with NDR to * compatible with samba's xattr meta format. The compatibility with samba * is important because it can lose the information(file attribute, * creation time, acls) about the existing files when switching between * ksmbd and samba. */ /* * Dos attribute flags used for what variable is valid. */ enum { … }; /* * Dos attribute structure which is compatible with samba's one. * Storing it into the xattr named "DOSATTRIB" separately from inode * allows ksmbd to faithfully reproduce windows filesystem semantics * on top of a POSIX filesystem. */ struct xattr_dos_attrib { … }; /* * Enumeration is used for computing posix acl hash. */ enum { … }; #define SMB_ACL_READ … #define SMB_ACL_WRITE … #define SMB_ACL_EXECUTE … struct xattr_acl_entry { … }; /* * xattr_smb_acl structure is used for computing posix acl hash. */ struct xattr_smb_acl { … }; /* 64bytes hash in xattr_ntacl is computed with sha256 */ #define XATTR_SD_HASH_TYPE_SHA256 … #define XATTR_SD_HASH_SIZE … /* * xattr_ntacl is used for storing ntacl and hashes. * Hash is used for checking valid posix acl and ntacl in xattr. */ struct xattr_ntacl { … }; /* DOS ATTRIBUITE XATTR PREFIX */ #define DOS_ATTRIBUTE_PREFIX … #define DOS_ATTRIBUTE_PREFIX_LEN … #define XATTR_NAME_DOS_ATTRIBUTE … #define XATTR_NAME_DOS_ATTRIBUTE_LEN … /* STREAM XATTR PREFIX */ #define STREAM_PREFIX … #define STREAM_PREFIX_LEN … #define XATTR_NAME_STREAM … #define XATTR_NAME_STREAM_LEN … /* SECURITY DESCRIPTOR(NTACL) XATTR PREFIX */ #define SD_PREFIX … #define SD_PREFIX_LEN … #define XATTR_NAME_SD … #define XATTR_NAME_SD_LEN … #endif /* __XATTR_H__ */
Codebase Browser
linux