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
  78 struct code_header {                    /* from cyutils.h */
  79         char magic[4];
  80         char res1[4];                           /* for extra magic */
  81         char fwdate[3];
  82         char fwvern[3];
  83         char id[4];                                     /* U2ND */
  84         char hw_ver;                            /* 0: for 4702, 1: for 4712 -- new in 2.04.3 */
  85         char unused;
  86         unsigned char flags[2];       /* SUPPORT_ flags new for 3.37.2 (WRT54G v2.2 and WRT54GS v1.1) */
  87         unsigned char res2[10];
  88 } ;
  89
  90 struct board_info {
  91         char    *id;
  92         char    *pattern;
  93         char    hw_ver;
  94         char    unused;
  95         char    flags[2];
  96 };
  97
  98 struct board_info boards[] = {
  99         {
 100                 .id             = "WRT160NL",
 101                 .pattern        = "NL16",
 102                 .hw_ver         = 0x00,
 103                 .unused         = 0x0f,
 104                 .flags          = {0x3f, 0x00},
 105         }, {
 106                 /* Terminating entry */
 107                 .id     = NULL,
 108         }
 109 };
 110
 111 /**********************************************************************/
 112
 113 void usage(void) __attribute__ (( __noreturn__ ));
 114
 115 void usage(void)
 116 {
 117         fprintf(stderr, "Usage: addpattern [-i trxfile] [-o binfile] [-B board_id] [-p pattern] [-g] [-b] [-v v#.#.#] [-r #.#] [-{0|1|2|4}] -h\n");
 118         exit(EXIT_FAILURE);
 119 }
 120
 121 struct board_info *find_board(char *id)
 122 {
 123         struct board_info *board;
 124
 125         for (board = boards; board->id != NULL; board++)
 126                 if (strcasecmp(id, board->id) == 0)
 127                         return board;
 128
 129         return NULL;
 130 }
 131
 132 int main(int argc, char **argv)
 133 {
 134         char buf[1024]; /* keep this at 1k or adjust garbage calc below */
 135         struct code_header *hdr;
 136         FILE *in = stdin;
 137         FILE *out = stdout;
 138         char *ifn = NULL;
 139         char *ofn = NULL;
 140         char *pattern = CODE_PATTERN;
 141         char *pbotpat = PBOT_PATTERN;
 142         char *version = CYBERTAN_VERSION;
 143         char *board_id = NULL;
 144         struct board_info *board = NULL;
 145         int gflag = 0;
 146         int pbotflag = 0;
 147         int c;
 148         int v0, v1, v2;
 149         size_t off, n;
 150         time_t t;
 151         struct tm *ptm;
 152
 153         fprintf(stderr, "mjn3's addpattern replacement - v0.81\n");
 154
 155         hdr = (struct code_header *) buf;
 156         memset(hdr, 0, sizeof(struct code_header));
 157
 158         while ((c = getopt(argc, argv, "i:o:p:gbv:0124hr:B:")) != -1) {
 159                 switch (c) {
 160                         case 'i':
 161                                 ifn = optarg;
 162                                 break;
 163                         case 'o':
 164                                 ofn = optarg;
 165                                 break;
 166                         case 'p':
 167                                 pattern = optarg;
 168                                 break;
 169                         case 'g':
 170                                 gflag = 1;
 171                                 break;
 172                         case 'b':
 173                                 pbotflag = 1;
 174                                 break;
 175                         case 'v':                       /* extension to allow setting version */
 176                                 version = optarg;
 177                                 break;
 178                         case '0':
 179                                 hdr->hw_ver = 0;
 180                                 break;
 181                         case '1':
 182                                 hdr->hw_ver = 1;
 183                                 break;
 184                         case '2':                       /* new 54G v2.2 and 54GS v1.1 flags */
 185                                 hdr->hw_ver = 1;
 186                                 hdr->flags[0] |= SUPPORT_4712_CHIP;
 187                                 hdr->flags[0] |= SUPPORT_INTEL_FLASH;
 188                                 hdr->flags[0] |= SUPPORT_5325E_SWITCH;
 189                                 break;
 190                         case '4':
 191                                 /* V4 firmware sets the flags to 0x1f */
 192                                 hdr->hw_ver = 0;
 193                                 hdr->flags[0] = 0x1f;
 194                                 break;
 195                         case 'r':
 196                                 hdr->hw_ver = (char)(atof(optarg)*10)+0x30;
 197                                 break;
 198                         case 'B':
 199                                 board_id = optarg;
 200                                 break;
 201
 202                         case 'h':
 203                         default:
 204                                 usage();
 205                 }
 206         }
 207
 208         if (optind != argc || optind == 1) {
 209                 fprintf(stderr, "illegal arg \"%s\"\n", argv[optind]);
 210                 usage();
 211         }
 212
 213         if (board_id) {
 214                 board = find_board(board_id);
 215                 if (board == NULL) {
 216                         fprintf(stderr, "unknown board \"%s\"\n", board_id);
 217                         usage();
 218                 }
 219                 pattern = board->pattern;
 220                 hdr->hw_ver = board->hw_ver;
 221                 hdr->unused = board->unused;
 222                 hdr->flags[0] = board->flags[0];
 223                 hdr->flags[1] = board->flags[1];
 224         }
 225
 226         if (strlen(pattern) != 4) {
 227                 fprintf(stderr, "illegal pattern \"%s\": length != 4\n", pattern);
 228                 usage();
 229         }
 230
 231         if (ifn && !(in = fopen(ifn, "r"))) {
 232                 fprintf(stderr, "can not open \"%s\" for reading\n", ifn);
 233                 usage();
 234         }
 235
 236         if (ofn && !(out = fopen(ofn, "w"))) {
 237                 fprintf(stderr, "can not open \"%s\" for writing\n", ofn);
 238                 usage();
 239         }
 240
 241         if (time(&t) == (time_t)(-1)) {
 242                 fprintf(stderr, "time call failed\n");
 243                 return EXIT_FAILURE;
 244         }
 245
 246         ptm = localtime(&t);
 247
 248         if (3 != sscanf(version, "v%d.%d.%d", &v0, &v1, &v2)) {
 249                 fprintf(stderr, "bad version string \"%s\"\n", version);
 250                 return EXIT_FAILURE;
 251         }
 252
 253         memcpy(&hdr->magic, pattern, 4);
 254         if (pbotflag)
 255                 memcpy(&hdr->res1, pbotpat, 4);
 256         hdr->fwdate[0] = ptm->tm_year % 100;
 257         hdr->fwdate[1] = ptm->tm_mon + 1;
 258         hdr->fwdate[2] = ptm->tm_mday;
 259         hdr->fwvern[0] = v0;
 260         hdr->fwvern[1] = v1;
 261         hdr->fwvern[2] = v2;
 262         memcpy(&hdr->id, CODE_ID, strlen(CODE_ID));
 263
 264         off = sizeof(struct code_header);
 265
 266         fprintf(stderr, "writing firmware v%d.%d.%d on %d/%d/%d (y/m/d)\n",
 267                         v0, v1, v2,
 268                         hdr->fwdate[0], hdr->fwdate[1], hdr->fwdate[2]);
 269
 270
 271         while ((n = fread(buf + off, 1, sizeof(buf)-off, in) + off) > 0) {
 272                 off = 0;
 273                 if (n < sizeof(buf)) {
 274                         if (ferror(in)) {
 275                         FREAD_ERROR:
 276                                 fprintf(stderr, "fread error\n");
 277                                 return EXIT_FAILURE;
 278                         }
 279                         if (gflag) {
 280                                 gflag = sizeof(buf) - n;
 281                                 memset(buf + n, 0xff, gflag);
 282                                 fprintf(stderr, "adding %d bytes of garbage\n", gflag);
 283                                 n = sizeof(buf);
 284                         }
 285                 }
 286                 if (!fwrite(buf, n, 1, out)) {
 287                 FWRITE_ERROR:
 288                         fprintf(stderr, "fwrite error\n");
 289                         return EXIT_FAILURE;
 290                 }
 291         }
 292
 293         if (ferror(in)) {
 294                 goto FREAD_ERROR;
 295         }
 296
 297         if (fflush(out)) {
 298                 goto FWRITE_ERROR;
 299         }
 300
 301         fclose(in);
 302         fclose(out);
 303
 304         return EXIT_SUCCESS;
 305 }