+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * (C) Nicolò Veronese <nicveronese@gmail.com>
- */
-
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <libgen.h>
-#include <stdarg.h>
-#include <getopt.h>
-#include <string.h>
-#include <errno.h>
-
-#include <netinet/in.h> // htonl
-
-// Usage: mkdapimg2 -s signature [-v version] [-r region]
-// [-k uImage block size] -i <input> -o <output>
-//
-// NOTE: The kernel block size is used to know the offset of the rootfs
-// in the image file.
-//
-// The system writes in the uImage partition until the end of uImage
-// is reached, after that, the system jumps to the offset specified with the -k
-// parameter and begin writing at the beginning of the rootfs MTD partition.
-//
-// If the -k parameter is the size of the original uImage partition, the system
-// continue writing in the rootfs partition starting from the last block
-// that has been wrote. (This is useful if the new kernel size is
-// different from the original one)
-//
-// Example:
-// ------------------------------------------
-// Creating 7 MTD partitions on "ath-nor0":
-// 0x000000000000-0x000000010000 : "u-boot"
-// 0x000000010000-0x000000020000 : "ART"
-// 0x000000020000-0x000000030000 : "MP"
-// 0x000000030000-0x000000040000 : "config"
-// 0x000000040000-0x000000120000 : "uImage"
-// 0x000000120000-0x000000800000 : "rootfs"
-// 0x000000040000-0x000000800000 : "firmware"
-// ------------------------------------------
-//
-// 0x000000120000-0x000000040000 = 0xE0000 -> 917504
-//
-// e.g.: mkdapimg2 -s HONEYBEE-FIRMWARE-DAP-1330 -v 1.00.21 -r Default
-// -k 917504 -i sysupgrade.bin -o factory.bin
-//
-//
-// The img_hdr_struct was taken from the D-Link SDK:
-// DAP-1330_OSS-firmware_1.00b21/DAP-1330_OSS-firmware_1.00b21/uboot/uboot.patch
-
-#define MAX_SIGN_LEN 32
-#define MAX_FW_VER_LEN 16
-#define MAX_REG_LEN 8
-
-struct img_hdr_struct {
- uint32_t hdr_len;
- uint32_t checksum;
- uint32_t total_size;
- uint32_t kernel_size;
- char signature[MAX_SIGN_LEN];
- char fw_ver[MAX_FW_VER_LEN];
- char fw_reg[MAX_REG_LEN];
-} imghdr ;
-
-char *progname;
-
-void
-perrexit(int code, char *msg)
-{
- fprintf(stderr, "%s: %s: %s\n", progname, msg, strerror(errno));
- exit(code);
-}
-
-void
-usage()
-{
- fprintf(stderr, "usage: %s -s signature [-v version] [-r region] [-k uImage part size] -i <input> -o <output>\n", progname);
- exit(1);
-}
-
-int
-main(int ac, char *av[])
-{
- char signature[MAX_SIGN_LEN];
- char version[MAX_FW_VER_LEN];
- char region[MAX_REG_LEN];
- int kernel = 0;
-
- FILE *ifile = NULL;
- FILE *ofile = NULL;
- int c;
-
- uint32_t cksum;
- uint32_t bcnt;
-
- progname = basename(av[0]);
-
- memset(signature, 0, sizeof(signature));
- memset(version, 0, sizeof(version));
- memset(region, 0, sizeof(region));
-
- while ( 1 ) {
- char *ptr;
- int c;
-
- c = getopt(ac, av, "s:v:r:k:i:o:");
- if (c == -1)
- break;
-
- switch (c) {
- case 's':
- if (strlen(optarg) > MAX_SIGN_LEN + 1) {
- fprintf(stderr, "%s: signature exceeds %d chars\n",
- progname, MAX_SIGN_LEN);
- exit(1);
- }
- strcpy(signature, optarg);
- break;
- case 'v':
- if (strlen(optarg) > MAX_FW_VER_LEN + 1) {
- fprintf(stderr, "%s: version exceeds %d chars\n",
- progname, MAX_FW_VER_LEN);
- exit(1);
- }
- strcpy(version, optarg);
- break;
- case 'r':
- if (strlen(optarg) > MAX_REG_LEN + 1) {
- fprintf(stderr, "%s: region exceeds %d chars\n",
- progname, MAX_REG_LEN);
- exit(1);
- }
- strcpy(region, optarg);
- break;
- case 'k':
- kernel = strtoul(optarg, &ptr, 0);
- if(ptr[0] == 'k'){
- kernel *= 1000;
- }
- break;
- case 'i':
- if ((ifile = fopen(optarg, "r")) == NULL)
- perrexit(1, optarg);
- break;
- case 'o':
- if ((ofile = fopen(optarg, "w")) == NULL)
- perrexit(1, optarg);
- break;
- default:
- usage();
- }
- }
-
- if (signature[0] == 0 || ifile == NULL || ofile == NULL) {
- usage();
- exit(1);
- }
-
- for (bcnt = 0, cksum = 0 ; (c = fgetc(ifile)) != EOF ; bcnt++)
- cksum += c & 0xff;
-
- if (fseek(ifile, 0, SEEK_SET) < 0)
- perrexit(2, "fseek on input");
-
- // Fill in the header
- memset(&imghdr, 0, sizeof(imghdr));
- imghdr.hdr_len = sizeof(imghdr);
- imghdr.checksum = htonl(cksum);
- imghdr.total_size = htonl(bcnt);
- imghdr.kernel_size = htonl(kernel);
-
- strncpy(imghdr.signature, signature, MAX_SIGN_LEN);
- strncpy(imghdr.fw_ver, version, MAX_FW_VER_LEN);
- strncpy(imghdr.fw_reg, region, MAX_REG_LEN);
-
- if (fwrite(&imghdr, sizeof(imghdr), 1, ofile) < 0)
- perrexit(2, "fwrite header on output");
-
- while ((c = fgetc(ifile)) != EOF) {
- if (fputc(c, ofile) == EOF)
- perrexit(2, "fputc on output");
- }
-
- if (ferror(ifile))
- perrexit(2, "fgetc on input");
-
- fclose(ofile);
- fclose(ifile);
-
- fprintf(stderr, "imgHdr.hdr_len = %lu\n", sizeof(imghdr));
- fprintf(stderr, "imgHdr.checksum = 0x%08x\n", cksum);
- fprintf(stderr, "imgHdr.total_size = 0x%08x\n", bcnt);
- fprintf(stderr, "imgHdr.kernel_size = 0x%08x\n", kernel);
- fprintf(stderr, "imgHdr.header = %s\n", signature);
- fprintf(stderr, "imgHdr.fw_ver = %s\n", version);
- fprintf(stderr, "imgHdr.fw_reg = %s\n", region);
-
- return 0;
-}
projects / openwrt / openwrt.git / blobdiff