1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/*
* Compaq Ownership Tag
*
* Copyright (C) 2003-2005 Jean Delvare <jdelvare@suse.de>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For the avoidance of doubt the "preferred form" of this code is one which
* is in an open unpatent encumbered format. Where cryptographic key signing
* forms part of the process of creating an executable the information
* including keys needed to generate an equivalently functional executable
* are deemed to be part of the source code.
*
* References:
* - Compaq "Technical Reference Guide for Compaq Deskpro 4000 and 6000"
* First Edition
* http://h18000.www1.hp.com/support/techpubs/technical_reference_guides/113a1097.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include "version.h"
#include "config.h"
#include "types.h"
#include "util.h"
/* Options are global */
struct opt
{
const char *devmem;
unsigned int flags;
};
static struct opt opt;
#define FLAG_VERSION (1 << 0)
#define FLAG_HELP (1 << 1)
static void ownership(u32 base, const char *pname, const char *devmem)
{
u8 *buf;
int i;
/* read the ownership tag */
if ((buf = mem_chunk(base, 0x51, devmem)) == NULL)
{
perror(pname);
return;
}
/* chop the trailing garbage */
i = 0x4f;
while (i >= 0 && (buf[i] == 0x20 || buf[i] == 0x00))
i--;
buf[i + 1] = '\0';
/* filter and print */
if (i >= 0)
{
for (; i >= 0; i--)
{
if (buf[i] < 32 || (buf[i] >= 127 && buf[i] < 160))
buf[i] = '?';
}
printf("%s\n", (char *)buf);
}
free(buf);
}
static u32 decode(const u8 *p)
{
int i;
/* integrity checking (lack of checksum) */
for (i = 0; i < p[4]; i++)
{
if (p[5 + i * 10] != '$'
|| !(p[6 + i * 10] >= 'A' && p[6 + i * 10] <= 'Z')
|| !(p[7 + i * 10] >= 'A' && p[7 + i * 10] <= 'Z')
|| !(p[8 + i * 10] >= 'A' && p[8 + i * 10] <= 'Z'))
{
printf("\t Abnormal Entry! Please report. [%02x %02x %02x %02x]\n",
p[5 + i * 10], p[6 + i * 10],
p[7 + i * 10], p[8 + i * 10]);
return 0;
}
}
/* search for the right entry */
for (i = 0; i < p[4]; i++)
if (memcmp(p + 5 + i * 10, "$ERB", 4) == 0)
return DWORD(p + 9 + i * 10);
return 0;
}
/* Return -1 on error, 0 on success */
static int parse_command_line(int argc, char * const argv[])
{
int option;
const char *optstring = "d:hV";
struct option longopts[] = {
{ "dev-mem", required_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ NULL, 0, NULL, 0 }
};
while ((option = getopt_long(argc, argv, optstring, longopts, NULL)) != -1)
switch (option)
{
case 'd':
opt.devmem = optarg;
break;
case 'h':
opt.flags |= FLAG_HELP;
break;
case 'V':
opt.flags |= FLAG_VERSION;
break;
case '?':
return -1;
}
return 0;
}
static void print_help(void)
{
static const char *help =
"Usage: ownership [OPTIONS]\n"
"Options are:\n"
" -d, --dev-mem FILE Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n"
" -h, --help Display this help text and exit\n"
" -V, --version Display the version and exit\n";
printf("%s", help);
}
int main(int argc, char * const argv[])
{
u8 *buf;
off_t fp;
int ok = 0;
if (sizeof(u8) != 1 || sizeof(u32) != 4)
{
fprintf(stderr, "%s: compiler incompatibility\n", argv[0]);
exit(255);
}
/* Set default option values */
opt.devmem = DEFAULT_MEM_DEV;
opt.flags = 0;
if (parse_command_line(argc, argv)<0)
exit(2);
if (opt.flags & FLAG_HELP)
{
print_help();
return 0;
}
if (opt.flags & FLAG_VERSION)
{
printf("%s\n", VERSION);
return 0;
}
if ((buf = mem_chunk(0xE0000, 0x20000, opt.devmem)) == NULL)
exit(1);
for (fp = 0; !ok && fp <= 0x1FFF0; fp += 16)
{
u8 *p = buf + fp;
if (memcmp((char *)p, "32OS", 4) == 0)
{
off_t len = p[4] * 10 + 5;
if (fp + len - 1 <= 0x1FFFF)
{
u32 base;
if ((base = decode(p)))
{
ok = 1;
ownership(base, argv[0], opt.devmem);
}
}
}
}
free(buf);
return 0;
}
|
