+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2014 Claudio Leite <leitec@staticky.com>
- */
-
-/*
- * Builds a proper flash image for routers using some Gemtek
- * OEM boards. These include the Airlink101 AR725W, the
- * Asante SmartHub 600 (AWRT-600N), and Linksys WRT100/110.
- *
- * The resulting image is compatible with the factory firmware
- * web upgrade and TFTP interface.
- *
- * To build:
- * gcc -O2 -o mkheader_gemtek mkheader_gemtek.c -lz
- *
- * Claudio Leite <leitec@staticky.com>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-
-#include <zlib.h> /* for crc32() */
-
-/*
- * The header is in little-endian format. In case
- * we are on a BE host, we need to swap binary
- * values.
- */
-#ifdef __APPLE__
-# include <libkern/OSByteOrder.h>
-# define le32 OSSwapHostToLittleInt32
-#else
-# if defined(__linux__)
-# include <endian.h>
-# if __BYTE_ORDER == __BIG_ENDIAN
-# define CPU_BIG_ENDIAN
-# endif
-# else
-# include <sys/endian.h> /* BSD's should have this */
-# if _BYTE_ORDER == _BIG_ENDIAN
-# define CPU_BIG_ENDIAN
-# endif
-# endif
-# ifdef CPU_BIG_ENDIAN
-# define le32(x) (((x & 0xff000000) >> 24) | \
- ((x & 0x00ff0000) >> 8) | \
- ((x & 0x0000ff00) << 8) | \
- ((x & 0x000000ff) << 24))
-# else
-# define le32(x) (x)
-# endif
-#endif
-
-struct gemtek_header {
- uint8_t magic[4];
- uint8_t version[4];
- uint32_t product_id;
- uint32_t imagesz;
- uint32_t checksum;
- uint32_t fast_checksum;
- uint8_t build[4];
- uint8_t lang[4];
-};
-
-#define HDRLEN sizeof(struct gemtek_header)
-
-struct machines {
- char *desc;
- char *id;
- uint32_t maxsize;
- struct gemtek_header header;
-};
-
-struct machines mach_def[] = {
- {"Airlink101 AR725W", "ar725w", 0x340000,
- {"GMTK", "1003", le32(0x03000001), 0, 0,
- 0, "01\0\0", "EN\0\0"}},
- {"Asante AWRT-600N", "awrt600n", 0x340000,
- {"A600", "1005", le32(0x03000001), 0, 0,
- 0, "01\0\0", "EN\0\0"}},
- {"Linksys WRT100", "wrt100", 0x320000,
- {"GMTK", "1007", le32(0x03040001), 0, 0,
- 0, "2\0\0\0", "EN\0\0"}},
- {"Linksys WRT110", "wrt110", 0x320000,
- {"GMTK", "1007", le32(0x03040001), 0, 0,
- 0, "2\0\0\0", "EN\0\0"}},
- {0}
-};
-
-int
-main(int argc, char *argv[])
-{
- unsigned long res, flen;
- struct gemtek_header my_hdr;
- FILE *f, *f_out;
- int image_type = -1, index;
- uint8_t *buf;
- uint32_t crc;
-
- if (argc < 3) {
- fprintf(stderr, "mkheader_gemtek <uImage> <webflash image> [machine ID]\n");
- fprintf(stderr, " where [machine ID] is one of:\n");
- for (index = 0; mach_def[index].desc != 0; index++) {
- fprintf(stderr, " %-10s %s", mach_def[index].id, mach_def[index].desc);
- if (index == 0)
- fprintf(stderr, " (default)\n");
- else
- fprintf(stderr, "\n");
- }
-
- exit(-1);
- }
-
- if (argc == 4) {
- for(index = 0; mach_def[index].id != 0; index++) {
- if(strcmp(mach_def[index].id, argv[3]) == 0) {
- image_type = index;
- break;
- }
- }
-
- if(image_type == -1) {
- fprintf(stderr, "\nERROR: invalid machine type\n");
- exit(-1);
- }
- } else
- image_type = 0;
-
- printf("Opening %s...\n", argv[1]);
-
- f = fopen(argv[1], "r");
- if(!f) {
- fprintf(stderr, "\nERROR: couldn't open input image\n");
- exit(-1);
- }
-
- fseek(f, 0, SEEK_END);
- flen = (unsigned long) ftell(f);
-
- printf(" %lu (0x%lX) bytes long\n", flen, flen);
-
- if (flen > mach_def[image_type].maxsize) {
- fprintf(stderr, "\nERROR: image exceeds maximum compatible size\n");
- goto f_error;
- }
-
- buf = malloc(flen + HDRLEN);
- if (!buf) {
- fprintf(stderr, "\nERROR: couldn't allocate buffer\n");
- goto f_error;
- }
- rewind(f);
- res = fread(buf + HDRLEN, 1, flen, f);
- if (res != flen) {
- perror("Couldn't read entire file: fread()");
- goto f_error;
- }
- fclose(f);
-
- printf("\nCreating %s...\n", argv[2]);
-
- memcpy(&my_hdr, &mach_def[image_type].header, HDRLEN);
-
- printf(" Using %s magic\n", mach_def[image_type].desc);
-
- my_hdr.imagesz = le32(flen + HDRLEN);
- memcpy(my_hdr.lang, "EN", 2);
-
- memcpy(buf, &my_hdr, HDRLEN);
-
- crc = crc32(0, buf, flen + HDRLEN);
- printf(" CRC32: %08X\n", crc);
-
- my_hdr.checksum = le32(crc);
- memcpy(buf, &my_hdr, HDRLEN);
-
- printf(" Writing...\n");
-
- f_out = fopen(argv[2], "w");
- if(!f_out) {
- fprintf(stderr, "\nERROR: couldn't open output image\n");
- exit(-1);
- }
-
- fwrite(buf, 1, flen + HDRLEN, f_out);
-
- fclose(f_out);
-
- free(buf);
- return 0;
-
-f_error:
- fclose(f);
- exit(-1);
-}
projects / openwrt / staging / mkresin.git / blobdiff