firmware-utils: image generator for D-Link DAP-1330
Signed-off-by: Nicolò Veronese <nicveronese@gmail.com>
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2 changed files with 205 additions and 0 deletions
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@ -63,6 +63,7 @@ define Host/Compile
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$(call cc,mkbrncmdline)
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$(call cc,mkbrnimg)
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$(call cc,mkdapimg)
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$(call cc,mkdapimg2)
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$(call cc, mkcameofw, -Wall)
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$(call cc,seama md5)
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$(call cc,oseama md5, -Wall)
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204
tools/firmware-utils/src/mkdapimg2.c
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204
tools/firmware-utils/src/mkdapimg2.c
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@ -0,0 +1,204 @@
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License,
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* version 2 as published by the Free Software Foundation.
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*
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* (C) Nicolò Veronese <nicveronese@gmail.com>
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <libgen.h>
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#include <stdarg.h>
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#include <getopt.h>
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#include <string.h>
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#include <errno.h>
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#include <netinet/in.h> // htonl
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// Usage: mkdapimg2 -s signature [-v version] [-r region]
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// [-k uImage block size] -i <input> -o <output>
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//
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// NOTE: The kernel block size is used to know the offset of the rootfs
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// in the image file.
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//
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// The system writes in the uImage partition until the end of uImage
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// is reached, after that, the system jumps to the offset specified with the -k
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// parameter and begin writing at the beginning of the rootfs MTD partition.
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//
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// If the -k parameter is the size of the original uImage partition, the system
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// continue writing in the rootfs partition starting from the last block
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// that has been wrote. (This is useful if the new kernel size is
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// different from the original one)
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//
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// Example:
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// ------------------------------------------
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// Creating 7 MTD partitions on "ath-nor0":
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// 0x000000000000-0x000000010000 : "u-boot"
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// 0x000000010000-0x000000020000 : "ART"
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// 0x000000020000-0x000000030000 : "MP"
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// 0x000000030000-0x000000040000 : "config"
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// 0x000000040000-0x000000120000 : "uImage"
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// 0x000000120000-0x000000800000 : "rootfs"
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// 0x000000040000-0x000000800000 : "firmware"
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// ------------------------------------------
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//
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// 0x000000120000-0x000000040000 = 0xE0000 -> 917504
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//
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// e.g.: mkdapimg2 -s HONEYBEE-FIRMWARE-DAP-1330 -v 1.00.21 -r Default
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// -k 917504 -i sysupgarde.bin -o factory.bin
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//
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//
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// The img_hdr_struct was taken from the D-Link SDK:
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// DAP-1330_OSS-firmware_1.00b21/DAP-1330_OSS-firmware_1.00b21/uboot/uboot.patch
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#define MAX_SIGN_LEN 32
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#define MAX_FW_VER_LEN 16
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#define MAX_REG_LEN 8
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struct img_hdr_struct {
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uint32_t hdr_len;
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uint32_t checksum;
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uint32_t total_size;
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uint32_t kernel_size;
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char signature[MAX_SIGN_LEN];
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char fw_ver[MAX_FW_VER_LEN];
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char fw_reg[MAX_REG_LEN];
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} imghdr ;
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char *progname;
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void
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perrexit(int code, char *msg)
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{
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fprintf(stderr, "%s: %s: %s\n", progname, msg, strerror(errno));
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exit(code);
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}
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void
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usage()
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{
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fprintf(stderr, "usage: %s -s signature [-v version] [-r region] [-k uImage part size] -i <input> -o <output>\n", progname);
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exit(1);
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}
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int
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main(int ac, char *av[])
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{
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char signature[MAX_SIGN_LEN];
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char version[MAX_FW_VER_LEN];
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char region[MAX_REG_LEN];
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int kernel = 0;
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FILE *ifile, *ofile;
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int c;
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uint32_t cksum;
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uint32_t bcnt;
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progname = basename(av[0]);
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memset(signature, 0, sizeof(signature));
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memset(version, 0, sizeof(version));
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memset(region, 0, sizeof(region));
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while ( 1 ) {
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char *ptr;
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int c;
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c = getopt(ac, av, "s:v:r:k:i:o:");
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if (c == -1)
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break;
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switch (c) {
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case 's':
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if (strlen(optarg) > MAX_SIGN_LEN + 1) {
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fprintf(stderr, "%s: signature exceeds %d chars\n",
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progname, MAX_SIGN_LEN);
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exit(1);
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}
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strcpy(signature, optarg);
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break;
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case 'v':
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if (strlen(optarg) > MAX_FW_VER_LEN + 1) {
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fprintf(stderr, "%s: version exceeds %d chars\n",
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progname, MAX_FW_VER_LEN);
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exit(1);
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}
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strcpy(version, optarg);
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break;
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case 'r':
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if (strlen(optarg) > MAX_REG_LEN + 1) {
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fprintf(stderr, "%s: region exceeds %d chars\n",
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progname, MAX_REG_LEN);
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exit(1);
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}
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strcpy(region, optarg);
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break;
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case 'k':
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kernel = strtoul(optarg, &ptr, 0);
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if(ptr[0] == 'k'){
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kernel *= 1000;
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}
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break;
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case 'i':
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if ((ifile = fopen(optarg, "r")) == NULL)
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perrexit(1, optarg);
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break;
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case 'o':
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if ((ofile = fopen(optarg, "w")) == NULL)
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perrexit(1, optarg);
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break;
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default:
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usage();
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}
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}
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if (signature[0] == 0 || ifile == NULL || ofile == NULL) {
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usage();
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exit(1);
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}
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for (bcnt = 0, cksum = 0 ; (c = fgetc(ifile)) != EOF ; bcnt++)
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cksum += c & 0xff;
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if (fseek(ifile, 0, SEEK_SET) < 0)
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perrexit(2, "fseek on input");
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// Fill in the header
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memset(&imghdr, 0, sizeof(imghdr));
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imghdr.hdr_len = sizeof(imghdr);
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imghdr.checksum = htonl(cksum);
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imghdr.total_size = htonl(bcnt);
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imghdr.kernel_size = htonl(kernel);
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strncpy(imghdr.signature, signature, MAX_SIGN_LEN);
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strncpy(imghdr.fw_ver, version, MAX_FW_VER_LEN);
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strncpy(imghdr.fw_reg, region, MAX_REG_LEN);
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if (fwrite(&imghdr, sizeof(imghdr), 1, ofile) < 0)
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perrexit(2, "fwrite header on output");
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while ((c = fgetc(ifile)) != EOF) {
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if (fputc(c, ofile) == EOF)
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perrexit(2, "fputc on output");
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}
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if (ferror(ifile))
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perrexit(2, "fgetc on input");
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fclose(ofile);
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fclose(ifile);
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fprintf(stderr, "imgHdr.hdr_len = %lu\n", sizeof(imghdr));
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fprintf(stderr, "imgHdr.checksum = 0x%08x\n", cksum);
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fprintf(stderr, "imgHdr.total_size = 0x%08x\n", bcnt);
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fprintf(stderr, "imgHdr.kernel_size = 0x%08x\n", kernel);
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fprintf(stderr, "imgHdr.header = %s\n", signature);
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fprintf(stderr, "imgHdr.fw_ver = %s\n", version);
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fprintf(stderr, "imgHdr.fw_reg = %s\n", region);
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return 0;
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}
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