2 Definitions for the REGF registry file format as used by
5 Copyright (C) 2005 Jelmer Vernooij, jelmer@samba.org
6 Copyright (C) 2006 Wilco Baan Hofman, wilco@baanhofman.nl
8 Based on two files from Samba 3:
9 regedit.c by Richard Sharpe
10 regfio.c by Jerry Carter
16 const int REGF_OFFSET_NONE = 0xffffffff;
19 * Registry version number
20 * 1.2.0.1 for WinNT 3.51
25 [noprint] struct regf_version {
26 [value(1)] uint32 major;
27 [value(3)] uint32 minor;
28 [value(0)] uint32 release;
29 [value(1)] uint32 build;
33 "regf" is obviously the abbreviation for "Registry file". "regf" is the
34 signature of the header-block which is always 4kb in size, although only
35 the first 64 bytes seem to be used and a checksum is calculated over
36 the first 0x200 bytes only!
39 [public,noprint] struct regf_hdr {
40 [charset(DOS)] uint8 REGF_ID[4]; /* 'regf' */
41 uint32 update_counter1;
42 uint32 update_counter2;
47 [value(1)] uint32 uk7; /* 1 */
48 [charset(UTF16)] uint16 description[0x20];
49 uint32 padding[99]; /* Padding */
50 /* Checksum of first 0x200 bytes XOR-ed */
55 hbin probably means hive-bin (i.e. hive-container)
56 This block is always a multiple
59 [public,noprint] struct hbin_block {
60 [charset(DOS)] uint8 HBIN_ID[4]; /* hbin */
61 uint32 offset_from_first; /* Offset from 1st hbin-Block */
62 uint32 offset_to_next; /* Offset to the next hbin-Block */
65 uint32 block_size; /* Block size (including the header!) */
66 uint8 data[offset_to_next-0x20];
67 /* data is filled with:
69 Negative if in use, positive otherwise
70 Always a multiple of 8
72 Free space marker if 0xffffffff
76 [noprint] enum reg_key_type {
83 The nk-record can be treated as a combination of tree-record and
84 key-record of the win 95 registry.
86 [public,noprint] struct nk_block {
87 [charset(DOS)] uint8 header[2];
94 uint32 subkeys_offset;
95 uint32 unknown_offset;
97 uint32 values_offset; /* Points to a list of offsets of vk-records */
99 uint32 clsname_offset;
101 [value(strlen(key_name))] uint16 name_length;
102 uint16 clsname_length;
103 [charset(DOS)] uint8 key_name[name_length];
106 /* sk (? Security Key ?) is the ACL of the registry. */
107 [noprint,public] struct sk_block {
108 [charset(DOS)] uint8 header[2];
114 uint8 sec_desc[rec_size];
117 [noprint] struct lh_hash {
119 uint32 base37; /* base37 of key name */
122 /* Subkey listing with hash of first 4 characters */
123 [public,noprint] struct lh_block {
124 [charset(DOS)] uint8 header[2];
126 lh_hash hr[key_count];
129 [public,noprint] struct li_block {
130 [charset(DOS)] uint8 header[2];
132 uint32 nk_offset[key_count];
135 [public,noprint] struct ri_block {
136 [charset(DOS)] uint8 header[2];
138 uint32 offset[key_count]; /* li/lh offset */
141 /* The vk-record consists information to a single value (value key). */
142 [public,noprint] struct vk_block {
143 [charset(DOS)] uint8 header[2];
144 [value(strlen(data_name))] uint16 name_length;
145 uint32 data_length; /* If top-bit set, offset contains the data */
148 uint16 flag; /* =1, has name, else no name (=Default). */
150 [charset(DOS)] uint8 data_name[name_length];
153 [noprint] struct hash_record {
155 [charset(DOS)] uint8 hash[4];
159 The lf-record is the counterpart to the RGKN-record (the
162 [public,noprint] struct lf_block {
163 [charset(DOS)] uint8 header[2];
165 hash_record hr[key_count]; /* Array of hash records, depending on key_count */