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73d32b336a
729
source/utils/profiles.c
Normal file
729
source/utils/profiles.c
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@ -0,0 +1,729 @@
|
||||
/*
|
||||
Samba Unix/Linux SMB client utility profiles.c
|
||||
Copyright (C) 2002 Richard Sharpe, rsharpe@richardsharpe.com
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||||
|
||||
/*************************************************************************
|
||||
|
||||
A utility to report and change SIDs in registry files
|
||||
|
||||
Many of the ideas in here come from other people and software.
|
||||
I first looked in Wine in misc/registry.c and was also influenced by
|
||||
http://www.wednesday.demon.co.uk/dosreg.html
|
||||
|
||||
Which seems to contain comments from someone else. I reproduce them here
|
||||
incase the site above disappears. It actually comes from
|
||||
http://home.eunet.no/~pnordahl/ntpasswd/WinReg.txt.
|
||||
|
||||
The windows NT registry has 2 different blocks, where one can occure many
|
||||
times...
|
||||
|
||||
the "regf"-Block
|
||||
================
|
||||
|
||||
"regf" is obviosly the abbreviation for "Registry file". "regf" is the
|
||||
signature of the header-block which is always 4kb in size, although only
|
||||
the first 64 bytes seem to be used and a checksum is calculated over
|
||||
the first 0x200 bytes only!
|
||||
|
||||
Offset Size Contents
|
||||
0x00000000 D-Word ID: ASCII-"regf" = 0x66676572
|
||||
0x00000004 D-Word ???? //see struct REGF
|
||||
0x00000008 D-Word ???? Always the same value as at 0x00000004
|
||||
0x0000000C Q-Word last modify date in WinNT date-format
|
||||
0x00000014 D-Word 1
|
||||
0x00000018 D-Word 3
|
||||
0x0000001C D-Word 0
|
||||
0x00000020 D-Word 1
|
||||
0x00000024 D-Word Offset of 1st key record
|
||||
0x00000028 D-Word Size of the data-blocks (Filesize-4kb)
|
||||
0x0000002C D-Word 1
|
||||
0x000001FC D-Word Sum of all D-Words from 0x00000000 to
|
||||
0x000001FB //XOR of all words. Nigel
|
||||
|
||||
I have analyzed more registry files (from multiple machines running
|
||||
NT 4.0 german version) and could not find an explanation for the values
|
||||
marked with ???? the rest of the first 4kb page is not important...
|
||||
|
||||
the "hbin"-Block
|
||||
================
|
||||
I don't know what "hbin" stands for, but this block is always a multiple
|
||||
of 4kb in size.
|
||||
|
||||
Inside these hbin-blocks the different records are placed. The memory-
|
||||
management looks like a C-compiler heap management to me...
|
||||
|
||||
hbin-Header
|
||||
===========
|
||||
Offset Size Contents
|
||||
0x0000 D-Word ID: ASCII-"hbin" = 0x6E696268
|
||||
0x0004 D-Word Offset from the 1st hbin-Block
|
||||
0x0008 D-Word Offset to the next hbin-Block
|
||||
0x001C D-Word Block-size
|
||||
|
||||
The values in 0x0008 and 0x001C should be the same, so I don't know
|
||||
if they are correct or swapped...
|
||||
|
||||
From offset 0x0020 inside a hbin-block data is stored with the following
|
||||
format:
|
||||
|
||||
Offset Size Contents
|
||||
0x0000 D-Word Data-block size //this size must be a
|
||||
multiple of 8. Nigel
|
||||
0x0004 ???? Data
|
||||
|
||||
If the size field is negative (bit 31 set), the corresponding block
|
||||
is free and has a size of -blocksize!
|
||||
|
||||
The data is stored as one record per block. Block size is a multiple
|
||||
of 4 and the last block reaches the next hbin-block, leaving no room.
|
||||
|
||||
Records in the hbin-blocks
|
||||
==========================
|
||||
|
||||
nk-Record
|
||||
|
||||
The nk-record can be treated as a kombination of tree-record and
|
||||
key-record of the win 95 registry.
|
||||
|
||||
lf-Record
|
||||
|
||||
The lf-record is the counterpart to the RGKN-record (the
|
||||
hash-function)
|
||||
|
||||
vk-Record
|
||||
|
||||
The vk-record consists information to a single value.
|
||||
|
||||
sk-Record
|
||||
|
||||
sk (? Security Key ?) is the ACL of the registry.
|
||||
|
||||
Value-Lists
|
||||
|
||||
The value-lists contain information about which values are inside a
|
||||
sub-key and don't have a header.
|
||||
|
||||
Datas
|
||||
|
||||
The datas of the registry are (like the value-list) stored without a
|
||||
header.
|
||||
|
||||
All offset-values are relative to the first hbin-block and point to the
|
||||
block-size field of the record-entry. to get the file offset, you have to add
|
||||
the header size (4kb) and the size field (4 bytes)...
|
||||
|
||||
the nk-Record
|
||||
=============
|
||||
Offset Size Contents
|
||||
0x0000 Word ID: ASCII-"nk" = 0x6B6E
|
||||
0x0002 Word for the root-key: 0x2C, otherwise 0x20 //key symbolic links 0x10. Nigel
|
||||
0x0004 Q-Word write-date/time in windows nt notation
|
||||
0x0010 D-Word Offset of Owner/Parent key
|
||||
0x0014 D-Word number of sub-Keys
|
||||
0x001C D-Word Offset of the sub-key lf-Records
|
||||
0x0024 D-Word number of values
|
||||
0x0028 D-Word Offset of the Value-List
|
||||
0x002C D-Word Offset of the sk-Record
|
||||
|
||||
0x0030 D-Word Offset of the Class-Name //see NK structure for the use of these fields. Nigel
|
||||
0x0044 D-Word Unused (data-trash) //some kind of run time index. Does not appear to be important. Nigel
|
||||
0x0048 Word name-length
|
||||
0x004A Word class-name length
|
||||
0x004C ???? key-name
|
||||
|
||||
the Value-List
|
||||
==============
|
||||
Offset Size Contents
|
||||
0x0000 D-Word Offset 1st Value
|
||||
0x0004 D-Word Offset 2nd Value
|
||||
0x???? D-Word Offset nth Value
|
||||
|
||||
To determine the number of values, you have to look at the owner-nk-record!
|
||||
|
||||
Der vk-Record
|
||||
=============
|
||||
Offset Size Contents
|
||||
0x0000 Word ID: ASCII-"vk" = 0x6B76
|
||||
0x0002 Word name length
|
||||
0x0004 D-Word length of the data //if top bit is set when offset contains data. Nigel
|
||||
0x0008 D-Word Offset of Data
|
||||
0x000C D-Word Type of value
|
||||
0x0010 Word Flag
|
||||
0x0012 Word Unused (data-trash)
|
||||
0x0014 ???? Name
|
||||
|
||||
If bit 0 of the flag-word is set, a name is present, otherwise the value has no name (=default)
|
||||
|
||||
If the data-size is lower 5, the data-offset value is used to store the data itself!
|
||||
|
||||
The data-types
|
||||
==============
|
||||
Wert Beteutung
|
||||
0x0001 RegSZ: character string (in UNICODE!)
|
||||
0x0002 ExpandSZ: string with "%var%" expanding (UNICODE!)
|
||||
0x0003 RegBin: raw-binary value
|
||||
0x0004 RegDWord: Dword
|
||||
0x0007 RegMultiSZ: multiple strings, separated with 0
|
||||
(UNICODE!)
|
||||
|
||||
The "lf"-record
|
||||
===============
|
||||
Offset Size Contents
|
||||
0x0000 Word ID: ASCII-"lf" = 0x666C
|
||||
0x0002 Word number of keys
|
||||
0x0004 ???? Hash-Records
|
||||
|
||||
Hash-Record
|
||||
===========
|
||||
Offset Size Contents
|
||||
0x0000 D-Word Offset of corresponding "nk"-Record
|
||||
0x0004 D-Word ASCII: the first 4 characters of the key-name, padded with 0's. Case sensitiv!
|
||||
|
||||
Keep in mind, that the value at 0x0004 is used for checking the data-consistency! If you change the
|
||||
key-name you have to change the hash-value too!
|
||||
|
||||
//These hashrecords must be sorted low to high within the lf record. Nigel.
|
||||
|
||||
The "sk"-block
|
||||
==============
|
||||
(due to the complexity of the SAM-info, not clear jet)
|
||||
|
||||
Offset Size Contents
|
||||
0x0000 Word ID: ASCII-"sk" = 0x6B73
|
||||
0x0002 Word Unused
|
||||
0x0004 D-Word Offset of previous "sk"-Record
|
||||
0x0008 D-Word Offset of next "sk"-Record
|
||||
0x000C D-Word usage-counter
|
||||
0x0010 D-Word Size of "sk"-record in bytes
|
||||
???? //standard self
|
||||
relative security desciptor. Nigel
|
||||
???? ???? Security and auditing settings...
|
||||
????
|
||||
|
||||
The usage counter counts the number of references to this
|
||||
"sk"-record. You can use one "sk"-record for the entire registry!
|
||||
|
||||
Windows nt date/time format
|
||||
===========================
|
||||
The time-format is a 64-bit integer which is incremented every
|
||||
0,0000001 seconds by 1 (I don't know how accurate it realy is!)
|
||||
It starts with 0 at the 1st of january 1601 0:00! All values are
|
||||
stored in GMT time! The time-zone is important to get the real
|
||||
time!
|
||||
|
||||
Common values for win95 and win-nt
|
||||
==================================
|
||||
Offset values marking an "end of list", are either 0 or -1 (0xFFFFFFFF).
|
||||
If a value has no name (length=0, flag(bit 0)=0), it is treated as the
|
||||
"Default" entry...
|
||||
If a value has no data (length=0), it is displayed as empty.
|
||||
|
||||
simplyfied win-3.?? registry:
|
||||
=============================
|
||||
|
||||
+-----------+
|
||||
| next rec. |---+ +----->+------------+
|
||||
| first sub | | | | Usage cnt. |
|
||||
| name | | +-->+------------+ | | length |
|
||||
| value | | | | next rec. | | | text |------->+-------+
|
||||
+-----------+ | | | name rec. |--+ +------------+ | xxxxx |
|
||||
+------------+ | | value rec. |-------->+------------+ +-------+
|
||||
v | +------------+ | Usage cnt. |
|
||||
+-----------+ | | length |
|
||||
| next rec. | | | text |------->+-------+
|
||||
| first sub |------+ +------------+ | xxxxx |
|
||||
| name | +-------+
|
||||
| value |
|
||||
+-----------+
|
||||
|
||||
Greatly simplyfied structure of the nt-registry:
|
||||
================================================
|
||||
|
||||
+---------------------------------------------------------------+
|
||||
| |
|
||||
v |
|
||||
+---------+ +---------->+-----------+ +----->+---------+ |
|
||||
| "nk" | | | lf-rec. | | | nk-rec. | |
|
||||
| ID | | | # of keys | | | parent |---+
|
||||
| Date | | | 1st key |--+ | .... |
|
||||
| parent | | +-----------+ +---------+
|
||||
| suk-keys|-----+
|
||||
| values |--------------------->+----------+
|
||||
| SK-rec. |---------------+ | 1. value |--> +----------+
|
||||
| class |--+ | +----------+ | vk-rec. |
|
||||
+---------+ | | | .... |
|
||||
v | | data |--> +-------+
|
||||
+------------+ | +----------+ | xxxxx |
|
||||
| Class name | | +-------+
|
||||
+------------+ |
|
||||
v
|
||||
+---------+ +---------+
|
||||
+----->| next sk |--->| Next sk |--+
|
||||
| +---| prev sk |<---| prev sk | |
|
||||
| | | .... | | ... | |
|
||||
| | +---------+ +---------+ |
|
||||
| | ^ | |
|
||||
| +----------+ |
|
||||
+-------------------------------+
|
||||
|
||||
---------------------------------------------------------------------------
|
||||
|
||||
Hope this helps.... (Although it was "fun" for me to uncover this things,
|
||||
it took me several sleepless nights ;)
|
||||
|
||||
B.D.
|
||||
|
||||
*************************************************************************/
|
||||
#include "includes.h"
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/mman.h>
|
||||
|
||||
typedef unsigned int DWORD;
|
||||
typedef unsigned short WORD;
|
||||
|
||||
#define REG_REGF_ID 0x66676572
|
||||
|
||||
typedef struct regf_block {
|
||||
DWORD REGF_ID; /* regf */
|
||||
DWORD uk1;
|
||||
DWORD uk2;
|
||||
DWORD tim1, tim2;
|
||||
DWORD uk3; /* 1 */
|
||||
DWORD uk4; /* 3 */
|
||||
DWORD uk5; /* 0 */
|
||||
DWORD uk6; /* 1 */
|
||||
DWORD first_key; /* offset */
|
||||
unsigned int dblk_size;
|
||||
DWORD uk7[116]; /* 1 */
|
||||
DWORD chksum;
|
||||
} REGF_HDR;
|
||||
|
||||
typedef struct hbin_sub_struct {
|
||||
DWORD dblocksize;
|
||||
char data[1];
|
||||
} HBIN_SUB_HDR;
|
||||
|
||||
#define REG_HBIN_ID 0x6E696268
|
||||
|
||||
typedef struct hbin_struct {
|
||||
DWORD HBIN_ID; /* hbin */
|
||||
DWORD next_off;
|
||||
DWORD prev_off;
|
||||
DWORD uk1;
|
||||
DWORD uk2;
|
||||
DWORD uk3;
|
||||
DWORD uk4;
|
||||
DWORD blk_size;
|
||||
HBIN_SUB_HDR hbin_sub_hdr;
|
||||
} HBIN_HDR;
|
||||
|
||||
#define REG_NK_ID 0x6B6E
|
||||
|
||||
typedef struct nk_struct {
|
||||
WORD NK_ID;
|
||||
WORD type;
|
||||
DWORD t1, t2;
|
||||
DWORD uk1;
|
||||
DWORD own_off;
|
||||
DWORD subk_num;
|
||||
DWORD uk2;
|
||||
DWORD lf_off;
|
||||
DWORD uk3;
|
||||
DWORD val_cnt;
|
||||
DWORD val_off;
|
||||
DWORD sk_off;
|
||||
DWORD clsnam_off;
|
||||
} NK_HDR;
|
||||
|
||||
#define REG_SK_ID 0x6B73
|
||||
|
||||
typedef struct sk_struct {
|
||||
WORD SK_ID;
|
||||
WORD uk1;
|
||||
DWORD prev_off;
|
||||
DWORD next_off;
|
||||
DWORD ref_cnt;
|
||||
DWORD rec_size;
|
||||
char sec_desc[1];
|
||||
} SK_HDR;
|
||||
|
||||
typedef struct sec_desc_rec {
|
||||
WORD rev;
|
||||
WORD type;
|
||||
DWORD owner_off;
|
||||
DWORD group_off;
|
||||
DWORD sacl_off;
|
||||
DWORD dacl_off;
|
||||
} MY_SEC_DESC;
|
||||
|
||||
typedef struct ace_struct {
|
||||
unsigned char type;
|
||||
unsigned char flags;
|
||||
unsigned short length;
|
||||
unsigned int perms;
|
||||
DOM_SID trustee;
|
||||
} ACE;
|
||||
|
||||
typedef struct acl_struct {
|
||||
WORD rev;
|
||||
WORD size;
|
||||
DWORD num_aces;
|
||||
ACE *aces; /* One or more ACEs */
|
||||
} ACL;
|
||||
|
||||
#define OFF(f) (0x1000 + (f) + 4)
|
||||
|
||||
void print_sid(DOM_SID *sid);
|
||||
|
||||
int verbose = 1;
|
||||
DOM_SID old_sid, new_sid;
|
||||
int change = 0, new = 0;
|
||||
|
||||
/* Compare two SIDs for equality */
|
||||
int my_sid_equal(DOM_SID *s1, DOM_SID *s2)
|
||||
{
|
||||
int sa1, sa2;
|
||||
|
||||
if (s1->sid_rev_num != s2->sid_rev_num) return 0;
|
||||
|
||||
sa1 = s1->num_auths; sa2 = s2->num_auths;
|
||||
|
||||
if (sa1 != sa2) return 0;
|
||||
|
||||
return !bcmp((char *)&s1->id_auth, (char *)&s2->id_auth,
|
||||
6 + sa1 * 4);
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Quick and dirty to read a SID in S-1-5-21-x-y-z-rid format and
|
||||
* construct a DOM_SID
|
||||
*/
|
||||
int get_sid(DOM_SID *sid, char *sid_str)
|
||||
{
|
||||
int i = 0, auth;
|
||||
char *lstr;
|
||||
|
||||
if (strncmp(sid_str, "S-1-5", 5)) {
|
||||
fprintf(stderr, "Does not conform to S-1-5...: %s\n", sid_str);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* We only allow strings of form S-1-5... */
|
||||
|
||||
sid->sid_rev_num = 1;
|
||||
sid->id_auth[5] = 5;
|
||||
|
||||
lstr = sid_str + 5;
|
||||
|
||||
while (1) {
|
||||
if (!lstr || !lstr[0] || sscanf(lstr, "-%u", &auth) == 0) {
|
||||
if (i < 4) {
|
||||
fprintf(stderr, "Not of form -d-d...: %s, %u\n", lstr, i);
|
||||
return 0;
|
||||
}
|
||||
sid->num_auths=i;
|
||||
print_sid(sid);
|
||||
return 1;
|
||||
}
|
||||
|
||||
SIVAL(&sid->sub_auths[i], 0, auth);
|
||||
i++;
|
||||
lstr = strchr(lstr + 1, '-');
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Replace SID1, component by component with SID2
|
||||
* Assumes will never be called with unequal length SIDS
|
||||
* so only touches 21-x-y-z-rid portion
|
||||
* This routine does not need to deal with endianism as
|
||||
* long as the incoming SIDs are both in the same (LE) format.
|
||||
*/
|
||||
void change_sid(DOM_SID *s1, DOM_SID *s2)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i=0; i<s1->num_auths; i++) {
|
||||
s1->sub_auths[i] = s2->sub_auths[i];
|
||||
}
|
||||
}
|
||||
|
||||
void print_sid(DOM_SID *sid)
|
||||
{
|
||||
int i, comps = sid->num_auths;
|
||||
fprintf(stdout, "S-%u-%u", sid->sid_rev_num, sid->id_auth[5]);
|
||||
|
||||
for (i = 0; i < comps; i++) {
|
||||
|
||||
fprintf(stdout, "-%u", IVAL(&sid->sub_auths[i],0));
|
||||
|
||||
}
|
||||
fprintf(stdout, "\n");
|
||||
}
|
||||
|
||||
void process_sid(DOM_SID *sid, DOM_SID *o_sid, DOM_SID *n_sid)
|
||||
{
|
||||
int i;
|
||||
if (my_sid_equal(sid, o_sid)) {
|
||||
|
||||
for (i=0; i<sid->num_auths; i++) {
|
||||
sid->sub_auths[i] = n_sid->sub_auths[i];
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void process_acl(ACL *acl, const char *prefix)
|
||||
{
|
||||
int ace_cnt, i;
|
||||
ACE *ace;
|
||||
|
||||
ace_cnt = IVAL(&acl->num_aces, 0);
|
||||
ace = (ACE *)&acl->aces;
|
||||
if (verbose) fprintf(stdout, "%sACEs: %u\n", prefix, ace_cnt);
|
||||
for (i=0; i<ace_cnt; i++) {
|
||||
if (verbose) fprintf(stdout, "%s Perms: %08X, SID: ", prefix,
|
||||
IVAL(&ace->perms, 0));
|
||||
if (change)
|
||||
process_sid(&ace->trustee, &old_sid, &new_sid);
|
||||
print_sid(&ace->trustee);
|
||||
ace = (ACE *)((char *)ace + SVAL(&ace->length, 0));
|
||||
}
|
||||
}
|
||||
|
||||
void usage(void)
|
||||
{
|
||||
fprintf(stderr, "usage: profiles [-c <OLD-SID> -n <NEW-SID>] <profilefile>\n");
|
||||
fprintf(stderr, "Version: %s\n", VERSION);
|
||||
fprintf(stderr, "\n\t-v\t sets verbose mode");
|
||||
fprintf(stderr, "\n\t-c S-1-5-21-z-y-x-oldrid - provides SID to change");
|
||||
fprintf(stderr, "\n\t-n S-1-5-21-a-b-c-newrid - provides SID to change to");
|
||||
fprintf(stderr, "\n\t\tBoth must be present if the other is.");
|
||||
fprintf(stderr, "\n\t\tIf neither present, just report the SIDs found\n");
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
extern char *optarg;
|
||||
extern int optind;
|
||||
int opt;
|
||||
int fd, start = 0;
|
||||
char *base;
|
||||
struct stat sbuf;
|
||||
REGF_HDR *regf_hdr;
|
||||
HBIN_HDR *hbin_hdr;
|
||||
NK_HDR *nk_hdr;
|
||||
SK_HDR *sk_hdr;
|
||||
WORD first_sk_off, sk_off;
|
||||
MY_SEC_DESC *sec_desc;
|
||||
int *ptr;
|
||||
|
||||
if (argc < 2) {
|
||||
usage();
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/*
|
||||
* Now, process the arguments
|
||||
*/
|
||||
|
||||
while ((opt = getopt(argc, argv, "c:n:v")) != EOF) {
|
||||
switch (opt) {
|
||||
case 'c':
|
||||
change = 1;
|
||||
if (!get_sid(&old_sid, optarg)) {
|
||||
fprintf(stderr, "Argument to -c should be a SID in form of S-1-5-...\n");
|
||||
usage();
|
||||
exit(254);
|
||||
}
|
||||
break;
|
||||
|
||||
case 'n':
|
||||
new = 1;
|
||||
if (!get_sid(&new_sid, optarg)) {
|
||||
fprintf(stderr, "Argument to -n should be a SID in form of S-1-5-...\n");
|
||||
usage();
|
||||
exit(253);
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
case 'v':
|
||||
verbose++;
|
||||
break;
|
||||
|
||||
default:
|
||||
usage();
|
||||
exit(255);
|
||||
}
|
||||
}
|
||||
|
||||
if ((!change & new) || (change & !new)) {
|
||||
fprintf(stderr, "You must specify both -c and -n if one or the other is set!\n");
|
||||
usage();
|
||||
exit(252);
|
||||
}
|
||||
|
||||
fd = open(argv[optind], O_RDWR, 0000);
|
||||
|
||||
if (fd < 0) {
|
||||
fprintf(stderr, "Could not open %s: %s\n", argv[optind],
|
||||
strerror(errno));
|
||||
exit(2);
|
||||
}
|
||||
|
||||
if (fstat(fd, &sbuf) < 0) {
|
||||
fprintf(stderr, "Could not stat file %s, %s\n", argv[optind],
|
||||
strerror(errno));
|
||||
exit(3);
|
||||
}
|
||||
|
||||
/*
|
||||
* Now, mmap the file into memory, check the header and start
|
||||
* dealing with the records. We are interested in the sk record
|
||||
*/
|
||||
start = 0;
|
||||
base = mmap(&start, sbuf.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
|
||||
|
||||
if ((int)base == -1) {
|
||||
fprintf(stderr, "Could not mmap file: %s, %s\n", argv[optind],
|
||||
strerror(errno));
|
||||
exit(4);
|
||||
}
|
||||
|
||||
/*
|
||||
* In what follows, and in places above, in order to work on both LE and
|
||||
* BE platforms, we have to use the Samba macros to extract SHORT, LONG
|
||||
* and associated UNSIGNED quantities from the data in the mmap'd file.
|
||||
* NOTE, however, that we do not need to do anything with memory
|
||||
* addresses that we construct from pointers in our address space.
|
||||
* For example,
|
||||
*
|
||||
* sec_desc = (MY_SEC_DESC *)&(sk_hdr->sec_desc[0]);
|
||||
*
|
||||
* is simply taking the address of a structure we already have the address
|
||||
* of in our address space, while, the fields within it, will have to
|
||||
* be accessed with the macros:
|
||||
*
|
||||
* owner_sid = (DOM_SID *)(&sk_hdr->sec_desc[0] +
|
||||
* IVAL(&sec_desc->owner_off, 0));
|
||||
*
|
||||
* Which is pulling out an offset and adding it to an existing pointer.
|
||||
*
|
||||
*/
|
||||
|
||||
regf_hdr = (REGF_HDR *)base;
|
||||
|
||||
if (verbose) fprintf(stdout, "Registry file size: %u\n", (unsigned int)sbuf.st_size);
|
||||
|
||||
if (IVAL(®f_hdr->REGF_ID, 0) != REG_REGF_ID) {
|
||||
fprintf(stderr, "Incorrect Registry file (doesn't have header ID): %s\n", argv[optind]);
|
||||
exit(5);
|
||||
}
|
||||
|
||||
if (verbose) fprintf(stdout, "First Key Off: %u, Data Block Size: %u\n",
|
||||
IVAL(®f_hdr->first_key, 0),
|
||||
IVAL(®f_hdr->dblk_size, 0));
|
||||
|
||||
hbin_hdr = (HBIN_HDR *)(base + 0x1000); /* No need for Endian stuff */
|
||||
|
||||
/*
|
||||
* This should be the hbin_hdr
|
||||
*/
|
||||
|
||||
if (IVAL(&hbin_hdr->HBIN_ID, 0) != REG_HBIN_ID) {
|
||||
fprintf(stderr, "Incorrect hbin hdr: %s\n", argv[optind]);
|
||||
exit(6);
|
||||
}
|
||||
|
||||
if (verbose) fprintf(stdout, "Next Off: %u, Prev Off: %u\n",
|
||||
IVAL(&hbin_hdr->next_off, 0),
|
||||
IVAL(&hbin_hdr->prev_off, 0));
|
||||
|
||||
nk_hdr = (NK_HDR *)(base + 0x1000 + IVAL(®f_hdr->first_key, 0) + 4);
|
||||
|
||||
if (SVAL(&nk_hdr->NK_ID, 0) != REG_NK_ID) {
|
||||
fprintf(stderr, "Incorrect NK Header: %s\n", argv[optind]);
|
||||
exit(7);
|
||||
}
|
||||
|
||||
sk_off = first_sk_off = IVAL(&nk_hdr->sk_off, 0);
|
||||
if (verbose) {
|
||||
fprintf(stdout, "Type: %0x\n", SVAL(&nk_hdr->type, 0));
|
||||
fprintf(stdout, "SK Off : %o\n", (0x1000 + sk_off + 4));
|
||||
}
|
||||
|
||||
sk_hdr = (SK_HDR *)(base + 0x1000 + sk_off + 4);
|
||||
|
||||
do {
|
||||
DOM_SID *owner_sid, *group_sid;
|
||||
ACL *sacl, *dacl;
|
||||
if (SVAL(&sk_hdr->SK_ID, 0) != REG_SK_ID) {
|
||||
fprintf(stderr, "Incorrect SK Header format: %08X\n",
|
||||
(0x1000 + sk_off + 4));
|
||||
exit(8);
|
||||
}
|
||||
ptr = (int *)sk_hdr;
|
||||
if (verbose) fprintf(stdout, "Off: %08X, Refs: %u, Size: %u\n",
|
||||
sk_off, IVAL(&sk_hdr->ref_cnt, 0),
|
||||
IVAL(&sk_hdr->rec_size, 0));
|
||||
|
||||
sec_desc = (MY_SEC_DESC *)&(sk_hdr->sec_desc[0]);
|
||||
owner_sid = (DOM_SID *)(&sk_hdr->sec_desc[0] +
|
||||
IVAL(&sec_desc->owner_off, 0));
|
||||
group_sid = (DOM_SID *)(&sk_hdr->sec_desc[0] +
|
||||
IVAL(&sec_desc->group_off, 0));
|
||||
sacl = (ACL *)(&sk_hdr->sec_desc[0] +
|
||||
IVAL(&sec_desc->sacl_off, 0));
|
||||
dacl = (ACL *)(&sk_hdr->sec_desc[0] +
|
||||
IVAL(&sec_desc->dacl_off, 0));
|
||||
if (verbose)fprintf(stdout, " Owner SID: ");
|
||||
if (change) process_sid(owner_sid, &old_sid, &new_sid);
|
||||
if (verbose) print_sid(owner_sid);
|
||||
if (verbose) fprintf(stdout, " Group SID: ");
|
||||
if (change) process_sid(group_sid, &old_sid, &new_sid);
|
||||
if (verbose) print_sid(group_sid);
|
||||
fprintf(stdout, " SACL: ");
|
||||
if (!sec_desc->sacl_off) { /* LE zero == BE zero */
|
||||
if (verbose) fprintf(stdout, "NONE\n");
|
||||
}
|
||||
else
|
||||
process_acl(sacl, " ");
|
||||
if (verbose) fprintf(stdout, " DACL: ");
|
||||
if (!sec_desc->dacl_off) {
|
||||
if (verbose) fprintf(stdout, "NONE\n");
|
||||
}
|
||||
else
|
||||
process_acl(dacl, " ");
|
||||
sk_off = IVAL(&sk_hdr->prev_off, 0);
|
||||
sk_hdr = (SK_HDR *)(base + OFF(IVAL(&sk_hdr->prev_off, 0)));
|
||||
} while (sk_off != first_sk_off);
|
||||
|
||||
munmap(base, sbuf.st_size);
|
||||
|
||||
close(fd);
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user