aboutsummaryrefslogtreecommitdiffstats
path: root/openwrt/target/utils/src/addpattern.c
blob: 5f49b921f6c0930a32027ad53708bb4417c96744 (plain)
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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
/*
 * Copyright (C) 2004  Manuel Novoa III  <mjn3@codepoet.org>
 *
 * 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
 */

/* July 29, 2004
 *
 * This is a hacked replacement for the 'addpattern' utility used to
 * create wrt54g .bin firmware files.  It isn't pretty, but it does
 * the job for me.
 *
 * Extensions:
 *  -v allows setting the version string on the command line.
 *  -{0|1} sets the (currently ignored) hw_ver flag in the header
 *      to 0 or 1 respectively.
 */

/* January 12, 2005
 * 
 * Modified by rodent at rodent dot za dot net
 * Support added for the new WRT54G v2.2 and WRT54GS v1.1 "flags"
 * Without the flags set to 0x7, the above units will refuse to flash.
 * 
 * Extensions:
 *  -{0|1|2} sets {0|1} sets hw_ver flag to 0/1. {2} sets hw_ver to 1
 *     and adds the new hardware "flags" for the v2.2/v1.1 units
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/stat.h>

/**********************************************************************/

#define CODE_ID		"U2ND"		/* from code_pattern.h */
#define CODE_PATTERN   "W54S"	/* from code_pattern.h */
#define PBOT_PATTERN   "PBOT"

#define CYBERTAN_VERSION	"v3.37.2" /* from cyutils.h */

/* WRT54G v2.2 and WRT54GS v1.1 "flags" (from 3.37.32 firmware cyutils.h) */
#define SUPPORT_4712_CHIP      0x0001
#define SUPPORT_INTEL_FLASH    0x0002
#define SUPPORT_5325E_SWITCH   0x0004

struct code_header {			/* from cyutils.h */
	char magic[4];
	char res1[4];				/* for extra magic */
	char fwdate[3];
	char fwvern[3];
	char id[4];					/* U2ND */
	char hw_ver;    			/* 0: for 4702, 1: for 4712 -- new in 2.04.3 */
	char unused;
	unsigned char flags[2];       /* SUPPORT_ flags new for 3.37.2 (WRT54G v2.2 and WRT54GS v1.1) */
	unsigned char res2[10];
} ;

/**********************************************************************/

void usage(void) __attribute__ (( __noreturn__ ));

void usage(void)
{
	fprintf(stderr, "Usage: addpattern [-i trxfile] [-o binfile] [-p pattern] [-g] [-b] [-v v#.#.#] [-{0|1|2|4}]\n");
	exit(EXIT_FAILURE);
}

int main(int argc, char **argv)
{
	char buf[1024];	/* keep this at 1k or adjust garbage calc below */
	struct code_header *hdr;
	FILE *in = stdin;
	FILE *out = stdout;
	char *ifn = NULL;
	char *ofn = NULL;
	char *pattern = CODE_PATTERN;
	char *pbotpat = PBOT_PATTERN;
	char *version = CYBERTAN_VERSION;
	int gflag = 0;
	int pbotflag = 0;
	int c;
	int v0, v1, v2;
	size_t off, n;
	time_t t;
	struct tm *ptm;

	fprintf(stderr, "mjn3's addpattern replacement - v0.81\n");

	hdr = (struct code_header *) buf;
	memset(hdr, 0, sizeof(struct code_header));

	while ((c = getopt(argc, argv, "i:o:p:gbv:0124")) != -1) {
		switch (c) {
			case 'i':
				ifn = optarg;
				break;
			case 'o':
				ofn = optarg;
				break;
			case 'p':
				pattern = optarg;
				break;
			case 'g':
				gflag = 1;
				break;
			case 'b':
				pbotflag = 1;
				break;
			case 'v':			/* extension to allow setting version */
				version = optarg;
				break;
			case '0':
				hdr->hw_ver = 0;
				break;
			case '1':
				hdr->hw_ver = 1;
				break;
			case '2': 			/* new 54G v2.2 and 54GS v1.1 flags */
				hdr->hw_ver = 1;
				hdr->flags[0] |= SUPPORT_4712_CHIP;
				hdr->flags[0] |= SUPPORT_INTEL_FLASH;
				hdr->flags[0] |= SUPPORT_5325E_SWITCH;
				break;
			case '4':
				/* V4 firmware sets the flags to 0x1f */
				hdr->hw_ver = 0;
				hdr->flags[0] = 0x1f;
				break;

			default:
				usage();
		}
	}

	if (optind != argc) {
		fprintf(stderr, "illegal arg \"%s\"\n", argv[optind]);
		usage();
	}

	if (strlen(pattern) != 4) {
		fprintf(stderr, "illegal pattern \"%s\": length != 4\n", pattern);
		usage();
	}

	if (ifn && !(in = fopen(ifn, "r"))) {
		fprintf(stderr, "can not open \"%s\" for reading\n", ifn);
		usage();
	}

	if (ofn && !(out = fopen(ofn, "w"))) {
		fprintf(stderr, "can not open \"%s\" for writing\n", ofn);
		usage();
	}

	if (time(&t) == (time_t)(-1)) {
		fprintf(stderr, "time call failed\n");
		return EXIT_FAILURE;
	}

	ptm = localtime(&t);

	if (3 != sscanf(version, "v%d.%d.%d", &v0, &v1, &v2)) {
		fprintf(stderr, "bad version string \"%s\"\n", version);
		return EXIT_FAILURE;
	}

	memcpy(&hdr->magic, pattern, 4);
	if (pbotflag)
		memcpy(&hdr->res1, pbotpat, 4);
	hdr->fwdate[0] = ptm->tm_year % 100;
	hdr->fwdate[1] = ptm->tm_mon + 1;
	hdr->fwdate[2] = ptm->tm_mday;
	hdr->fwvern[0] = v0;
	hdr->fwvern[1] = v1;
	hdr->fwvern[2] = v2;
	memcpy(&hdr->id, CODE_ID, strlen(CODE_ID));

	off = sizeof(struct code_header);

	fprintf(stderr, "writing firmware v%d.%d.%d on %d/%d/%d (y/m/d)\n",
			v0, v1, v2,
			hdr->fwdate[0], hdr->fwdate[1], hdr->fwdate[2]);


	while ((n = fread(buf + off, 1, sizeof(buf)-off, in) + off) > 0) {
		off = 0;
		if (n < sizeof(buf)) {
			if (ferror(in)) {
			FREAD_ERROR:
				fprintf(stderr, "fread error\n");
				return EXIT_FAILURE;
			}
			if (gflag) {
				gflag = sizeof(buf) - n;
				memset(buf + n, 0xff, gflag);
				fprintf(stderr, "adding %d bytes of garbage\n", gflag);
				n = sizeof(buf);
			}
		}
		if (!fwrite(buf, n, 1, out)) {
		FWRITE_ERROR:
			fprintf(stderr, "fwrite error\n");
			return EXIT_FAILURE;
		}
	}
	
	if (ferror(in)) {
		goto FREAD_ERROR;
	}

	if (fflush(out)) {
		goto FWRITE_ERROR;
	}

	fclose(in);
	fclose(out);

	return EXIT_SUCCESS;
}