/* * Copyright (C) 2004 Manuel Novoa III * * 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 #include #include #include #include #include /**********************************************************************/ #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; }