tools/firmware-utils/src/addpattern.c

   1 /*
   2  * Copyright (C) 2004  Manuel Novoa III  <mjn3@codepoet.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  17  */
  18
  19 /* July 29, 2004
  20  *
  21  * This is a hacked replacement for the 'addpattern' utility used to
  22  * create wrt54g .bin firmware files.  It isn't pretty, but it does
  23  * the job for me.
  24  *
  25  * Extensions:
  26  *  -v allows setting the version string on the command line.
  27  *  -{0|1} sets the (currently ignored) hw_ver flag in the header
  28  *      to 0 or 1 respectively.
  29  */
  30
  31 /* January 12, 2005
  32  *
  33  * Modified by rodent at rodent dot za dot net
  34  * Support added for the new WRT54G v2.2 and WRT54GS v1.1 "flags"
  35  * Without the flags set to 0x7, the above units will refuse to flash.
  36  *
  37  * Extensions:
  38  *  -{0|1|2} sets {0|1} sets hw_ver flag to 0/1. {2} sets hw_ver to 1
  39  *     and adds the new hardware "flags" for the v2.2/v1.1 units
  40 */
  41
  42 /* January 1, 2007
  43  *
  44  * Modified by juan.i.gonzalez at subdown dot net
  45  * Support added for the AG241v2  and similar
  46  *
  47  * Extensions:
  48  *  -r #.# adds revision hardware flags. AG241v2 and similar.
  49  *
  50  * AG241V2 firmware sets the hw_ver to 0x44.
  51  *
  52  * Example: -r 2.0
  53  *
  54  * Convert 2.0 to 20 to be an integer, and add 0x30 to skip special ASCII
  55  * #define HW_Version ((HW_REV * 10) + 0x30)  -> from cyutils.h
  56 */
  57
  58 #include <stdio.h>
  59 #include <stdlib.h>
  60 #include <string.h>
  61 #include <time.h>
  62 #include <unistd.h>
  63 #include <sys/stat.h>
  64
  65 /**********************************************************************/
  66
  67 #define CODE_ID         "U2ND"          /* from code_pattern.h */
  68 #define CODE_PATTERN   "W54S"   /* from code_pattern.h */
  69 #define PBOT_PATTERN   "PBOT"
  70
  71 #define CYBERTAN_VERSION        "v3.37.2" /* from cyutils.h */
  72
  73 /* WRT54G v2.2 and WRT54GS v1.1 "flags" (from 3.37.32 firmware cyutils.h) */
  74 #define SUPPORT_4712_CHIP      0x0001
  75 #define SUPPORT_INTEL_FLASH    0x0002
  76 #define SUPPORT_5325E_SWITCH   0x0004
  77 /* (from 3.00.24 firmware cyutils.h) */
  78 #define SUPPORT_4704_CHIP      0x0008
  79 #define SUPPORT_5352E_CHIP     0x0010
  80
  81 struct code_header {                    /* from cyutils.h */
  82         char magic[4];
  83         char res1[4];                           /* for extra magic */
  84         char fwdate[3];
  85         char fwvern[3];
  86         char id[4];                                     /* U2ND */
  87         char hw_ver;                            /* 0: for 4702, 1: for 4712 -- new in 2.04.3 */
  88
  89         unsigned char  sn;              // Serial Number
  90         unsigned char  flags[2];        /* SUPPORT_ flags new for 3.37.2 (WRT54G v2.2 and WRT54GS v1.1) */
  91         unsigned char  stable[2];       // The image is stable (for dual image)
  92         unsigned char  try1[2];         // Try to boot image first time (for dual image)
  93         unsigned char  try2[2];         // Try to boot image second time (for dual image)
  94         unsigned char  try3[2];         // Try to boot image third time (for dual_image)
  95         unsigned char  res3[2];
  96 } ;
  97
  98 struct board_info {
  99         char    *id;
 100         char    *pattern;
 101         char    hw_ver;
 102         char    sn;
 103         char    flags[2];
 104 };
 105
 106 struct board_info boards[] = {
 107         {
 108                 .id             = "WRT160NL",
 109                 .pattern        = "NL16",
 110                 .hw_ver         = 0x00,
 111                 .sn             = 0x0f,
 112                 .flags          = {0x3f, 0x00},
 113         }, {
 114                 /* Terminating entry */
 115                 .id     = NULL,
 116         }
 117 };
 118
 119 /**********************************************************************/
 120
 121 void usage(void) __attribute__ (( __noreturn__ ));
 122
 123 void usage(void)
 124 {
 125         fprintf(stderr, "Usage: addpattern [-i trxfile] [-o binfile] [-B board_id] [-p pattern] [-s serial] [-g] [-b] [-v v#.#.#] [-r #.#] [-{0|1|2|4|5}] -h\n");
 126         exit(EXIT_FAILURE);
 127 }
 128
 129 struct board_info *find_board(char *id)
 130 {
 131         struct board_info *board;
 132
 133         for (board = boards; board->id != NULL; board++)
 134                 if (strcasecmp(id, board->id) == 0)
 135                         return board;
 136
 137         return NULL;
 138 }
 139
 140 int main(int argc, char **argv)
 141 {
 142         char buf[1024]; /* keep this at 1k or adjust garbage calc below */
 143         struct code_header *hdr;
 144         FILE *in = stdin;
 145         FILE *out = stdout;
 146         char *ifn = NULL;
 147         char *ofn = NULL;
 148         char *pattern = CODE_PATTERN;
 149         char *pbotpat = PBOT_PATTERN;
 150         char *version = CYBERTAN_VERSION;
 151         char *board_id = NULL;
 152         struct board_info *board = NULL;
 153         int gflag = 0;
 154         int pbotflag = 0;
 155         int c;
 156         int v0, v1, v2;
 157         size_t off, n;
 158         time_t t;
 159         struct tm *ptm;
 160
 161         fprintf(stderr, "mjn3's addpattern replacement - v0.81\n");
 162
 163         hdr = (struct code_header *) buf;
 164         memset(hdr, 0, sizeof(struct code_header));
 165
 166         while ((c = getopt(argc, argv, "i:o:p:s:gbv:01245hr:B:")) != -1) {
 167                 switch (c) {
 168                         case 'i':
 169                                 ifn = optarg;
 170                                 break;
 171                         case 'o':
 172                                 ofn = optarg;
 173                                 break;
 174                         case 'p':
 175                                 pattern = optarg;
 176                                 break;
 177                         case 's':
 178                                 hdr->sn = (unsigned char) atoi (optarg);
 179                                 break;
 180                         case 'g':
 181                                 gflag = 1;
 182                                 break;
 183                         case 'b':
 184                                 pbotflag = 1;
 185                                 break;
 186                         case 'v':                       /* extension to allow setting version */
 187                                 version = optarg;
 188                                 break;
 189                         case '0':
 190                                 hdr->hw_ver = 0;
 191                                 break;
 192                         case '1':
 193                                 hdr->hw_ver = 1;
 194                                 break;
 195                         case '2':                       /* new 54G v2.2 and 54GS v1.1 flags */
 196                                 hdr->hw_ver = 1;
 197                                 hdr->flags[0] |= SUPPORT_4712_CHIP;
 198                                 hdr->flags[0] |= SUPPORT_INTEL_FLASH;
 199                                 hdr->flags[0] |= SUPPORT_5325E_SWITCH;
 200                                 break;
 201                         case '4':
 202                                 /* V4 firmware sets the flags to 0x1f */
 203                                 hdr->hw_ver = 0;
 204                                 hdr->flags[0] = 0x1f;
 205                                 break;
 206                         case '5':
 207                                 /* V5 is appended to trxV2 image */
 208                                 hdr->stable[0] = 0x73; // force image to be stable
 209                                 hdr->stable[1] = 0x00;
 210                                 hdr->try1[0]   = 0x74; // force try1 to be set
 211                                 hdr->try1[1]   = 0x00;
 212                                 hdr->try2[0]   = hdr->try2[1]   = 0xFF;
 213                                 hdr->try3[0]   = hdr->try3[1]   = 0xFF;
 214                                 break;
 215                         case 'r':
 216                                 hdr->hw_ver = (char)(atof(optarg)*10)+0x30;
 217                                 break;
 218                         case 'B':
 219                                 board_id = optarg;
 220                                 break;
 221
 222                         case 'h':
 223                         default:
 224                                 usage();
 225                 }
 226         }
 227
 228         if (optind != argc || optind == 1) {
 229                 fprintf(stderr, "illegal arg \"%s\"\n", argv[optind]);
 230                 usage();
 231         }
 232
 233         if (board_id) {
 234                 board = find_board(board_id);
 235                 if (board == NULL) {
 236                         fprintf(stderr, "unknown board \"%s\"\n", board_id);
 237                         usage();
 238                 }
 239                 pattern = board->pattern;
 240                 hdr->hw_ver = board->hw_ver;
 241                 hdr->sn = board->sn;
 242                 hdr->flags[0] = board->flags[0];
 243                 hdr->flags[1] = board->flags[1];
 244         }
 245
 246         if (strlen(pattern) != 4) {
 247                 fprintf(stderr, "illegal pattern \"%s\": length != 4\n", pattern);
 248                 usage();
 249         }
 250
 251         if (ifn && !(in = fopen(ifn, "r"))) {
 252                 fprintf(stderr, "can not open \"%s\" for reading\n", ifn);
 253                 usage();
 254         }
 255
 256         if (ofn && !(out = fopen(ofn, "w"))) {
 257                 fprintf(stderr, "can not open \"%s\" for writing\n", ofn);
 258                 usage();
 259         }
 260
 261         if (time(&t) == (time_t)(-1)) {
 262                 fprintf(stderr, "time call failed\n");
 263                 return EXIT_FAILURE;
 264         }
 265
 266         ptm = localtime(&t);
 267
 268         if (3 != sscanf(version, "v%d.%d.%d", &v0, &v1, &v2)) {
 269                 fprintf(stderr, "bad version string \"%s\"\n", version);
 270                 return EXIT_FAILURE;
 271         }
 272
 273         memcpy(&hdr->magic, pattern, 4);
 274         if (pbotflag)
 275                 memcpy(&hdr->res1, pbotpat, 4);
 276         hdr->fwdate[0] = ptm->tm_year % 100;
 277         hdr->fwdate[1] = ptm->tm_mon + 1;
 278         hdr->fwdate[2] = ptm->tm_mday;
 279         hdr->fwvern[0] = v0;
 280         hdr->fwvern[1] = v1;
 281         hdr->fwvern[2] = v2;
 282         memcpy(&hdr->id, CODE_ID, strlen(CODE_ID));
 283
 284         off = sizeof(struct code_header);
 285
 286         fprintf(stderr, "writing firmware v%d.%d.%d on %d/%d/%d (y/m/d)\n",
 287                         v0, v1, v2,
 288                         hdr->fwdate[0], hdr->fwdate[1], hdr->fwdate[2]);
 289
 290
 291         while ((n = fread(buf + off, 1, sizeof(buf)-off, in) + off) > 0) {
 292                 off = 0;
 293                 if (n < sizeof(buf)) {
 294                         if (ferror(in)) {
 295                         FREAD_ERROR:
 296                                 fprintf(stderr, "fread error\n");
 297                                 return EXIT_FAILURE;
 298                         }
 299                         if (gflag) {
 300                                 gflag = sizeof(buf) - n;
 301                                 memset(buf + n, 0xff, gflag);
 302                                 fprintf(stderr, "adding %d bytes of garbage\n", gflag);
 303                                 n = sizeof(buf);
 304                         }
 305                 }
 306                 if (!fwrite(buf, n, 1, out)) {
 307                 FWRITE_ERROR:
 308                         fprintf(stderr, "fwrite error\n");
 309                         return EXIT_FAILURE;
 310                 }
 311         }
 312
 313         if (ferror(in)) {
 314                 goto FREAD_ERROR;
 315         }
 316
 317         if (fflush(out)) {
 318                 goto FWRITE_ERROR;
 319         }
 320
 321         fclose(in);
 322         fclose(out);
 323
 324         return EXIT_SUCCESS;
 325 }