^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * attrib.h - Defines for attribute handling in NTFS Linux kernel driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Part of the Linux-NTFS project.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2001-2005 Anton Altaparmakov
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2002 Richard Russon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _LINUX_NTFS_ATTRIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _LINUX_NTFS_ATTRIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "endian.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "types.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "layout.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "inode.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "runlist.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "volume.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * ntfs_attr_search_ctx - used in attribute search functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * @mrec: buffer containing mft record to search
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * @attr: attribute record in @mrec where to begin/continue search
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * @is_first: if true ntfs_attr_lookup() begins search with @attr, else after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * Structure must be initialized to zero before the first call to one of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * attribute search functions. Initialize @mrec to point to the mft record to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * search, and @attr to point to the first attribute within @mrec (not necessary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * if calling the _first() functions), and set @is_first to 'true' (not necessary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * if calling the _first() functions).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * If @is_first is 'true', the search begins with @attr. If @is_first is 'false',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * the search begins after @attr. This is so that, after the first call to one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * of the search attribute functions, we can call the function again, without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * any modification of the search context, to automagically get the next
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * matching attribute.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) MFT_RECORD *mrec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) ATTR_RECORD *attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) bool is_first;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) ntfs_inode *ntfs_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ATTR_LIST_ENTRY *al_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) ntfs_inode *base_ntfs_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) MFT_RECORD *base_mrec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) ATTR_RECORD *base_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) } ntfs_attr_search_ctx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) extern int ntfs_map_runlist_nolock(ntfs_inode *ni, VCN vcn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) ntfs_attr_search_ctx *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) extern int ntfs_map_runlist(ntfs_inode *ni, VCN vcn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) extern LCN ntfs_attr_vcn_to_lcn_nolock(ntfs_inode *ni, const VCN vcn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) const bool write_locked);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) extern runlist_element *ntfs_attr_find_vcn_nolock(ntfs_inode *ni,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) const VCN vcn, ntfs_attr_search_ctx *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) int ntfs_attr_lookup(const ATTR_TYPE type, const ntfschar *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) const u32 name_len, const IGNORE_CASE_BOOL ic,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) const VCN lowest_vcn, const u8 *val, const u32 val_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) ntfs_attr_search_ctx *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) extern int load_attribute_list(ntfs_volume *vol, runlist *rl, u8 *al_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) const s64 size, const s64 initialized_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static inline s64 ntfs_attr_size(const ATTR_RECORD *a)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (!a->non_resident)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return (s64)le32_to_cpu(a->data.resident.value_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return sle64_to_cpu(a->data.non_resident.data_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) extern void ntfs_attr_reinit_search_ctx(ntfs_attr_search_ctx *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) extern ntfs_attr_search_ctx *ntfs_attr_get_search_ctx(ntfs_inode *ni,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) MFT_RECORD *mrec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) extern void ntfs_attr_put_search_ctx(ntfs_attr_search_ctx *ctx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #ifdef NTFS_RW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) extern int ntfs_attr_size_bounds_check(const ntfs_volume *vol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) const ATTR_TYPE type, const s64 size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) extern int ntfs_attr_can_be_non_resident(const ntfs_volume *vol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) const ATTR_TYPE type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) extern int ntfs_attr_can_be_resident(const ntfs_volume *vol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) const ATTR_TYPE type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) extern int ntfs_attr_record_resize(MFT_RECORD *m, ATTR_RECORD *a, u32 new_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) extern int ntfs_resident_attr_value_resize(MFT_RECORD *m, ATTR_RECORD *a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) const u32 new_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) extern int ntfs_attr_make_non_resident(ntfs_inode *ni, const u32 data_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) extern s64 ntfs_attr_extend_allocation(ntfs_inode *ni, s64 new_alloc_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) const s64 new_data_size, const s64 data_start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) extern int ntfs_attr_set(ntfs_inode *ni, const s64 ofs, const s64 cnt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) const u8 val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #endif /* NTFS_RW */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #endif /* _LINUX_NTFS_ATTRIB_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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