firmware-utils: update to version 2021-10-05

[openwrt/openwrt.git] / tools / firmware-utils / src / mkbrnimg.c

diff --git a/tools/firmware-utils/src/mkbrnimg.c b/tools/firmware-utils/src/mkbrnimg.c
deleted file mode 100644 (file)
index 1c575c6..0000000
--- a/tools/firmware-utils/src/mkbrnimg.c
+++ /dev/null
@@ -1,178 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * mkbrnimg.c - partially based on OpenWrt's wndr3700.c
- *
- * Copyright (C) 2011 Tobias Diedrich <ranma+openwrt@tdiedrich.de>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <string.h>
-#include <netinet/in.h>
-#include <inttypes.h>
-
-#define BPB 8 /* bits/byte */
-
-static uint32_t crc32[1<<BPB];
-
-static char *output_file = "default-brnImage";
-static uint32_t magic = 0x12345678;
-static char *signature = "BRNDTW502";
-static uint32_t crc32_poly = 0x2083b8ed;
-
-static void init_crc32()
-{
-       const uint32_t poly = ntohl(crc32_poly);
-       int n;
-
-       for (n = 0; n < 1<<BPB; n++) {
-               uint32_t crc = n;
-               int bit;
-
-               for (bit = 0; bit < BPB; bit++)
-                       crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
-               crc32[n] = crc;
-       }
-}
-
-static uint32_t crc32buf(const void *buf, size_t len)
-{
-       uint32_t crc = 0xFFFFFFFF;
-       const uint8_t *in = buf;
-
-       for (; len; len--, in++)
-               crc = crc32[(uint8_t)crc ^ *in] ^ (crc >> BPB);
-       return ~crc;
-}
-
-static void usage(const char *) __attribute__ (( __noreturn__ ));
-
-static void usage(const char *mess)
-{
-       fprintf(stderr, "Error: %s\n", mess);
-       fprintf(stderr, "Usage: mkbrnimg [-o output_file] [-m magic] [-s signature] [-p crc32 poly] kernel_file [additional files]\n");
-       fprintf(stderr, "\n");
-       exit(1);
-}
-
-static void parseopts(int *argc, char ***argv)
-{
-       char *endptr;
-       int res;
-
-       while ((res = getopt(*argc, *argv, "o:m:s:p:")) != -1) {
-               switch (res) {
-               default:
-                       usage("Unknown option");
-                       break;
-               case 'o':
-                       output_file = optarg;
-                       break;
-               case 'm':
-                       magic = strtoul(optarg, &endptr, 0);
-                       if (endptr == optarg || *endptr != 0)
-                               usage("magic must be a decimal or hexadecimal 32-bit value");
-                       break;
-               case 's':
-                       signature = optarg;
-                       break;
-               case 'p':
-                       crc32_poly = strtoul(optarg, &endptr, 0);
-                       if (endptr == optarg || *endptr != 0)
-                               usage("'crc32 poly' must be a decimal or hexadecimal 32-bit value");
-                       break;
-               }
-       }
-       *argc -= optind;
-       *argv += optind;
-}
-
-static void appendfile(int outfd, char *path, int kernel) {
-       int fd;
-       size_t len, padded_len;
-       char *input_file;
-       uint32_t crc;
-       char padding[0x400];
-       char footer[12];
-
-       memset(padding, 0xff, sizeof(padding));
-
-       // mmap input_file
-       if ((fd = open(path, O_RDONLY))  < 0
-       || (len = lseek(fd, 0, SEEK_END)) < 0
-       || (input_file = mmap(0, len, PROT_READ, MAP_SHARED, fd, 0)) == (void *) (-1)
-       || close(fd) < 0)
-       {
-               fprintf(stderr, "Error mapping file '%s': %s\n", path, strerror(errno));
-               exit(1);
-       }
-
-       // kernel should be lzma compressed image, not uImage
-       if (kernel &&
-           (input_file[0] != (char)0x5d ||
-            input_file[1] != (char)0x00 ||
-            input_file[2] != (char)0x00 ||
-            input_file[3] != (char)0x80)) {
-               fprintf(stderr, "lzma signature not found on kernel image.\n");
-               exit(1);
-       }
-
-       init_crc32();
-       crc = crc32buf(input_file, len);
-       fprintf(stderr, "crc32 for '%s' is %08x.\n", path, crc);
-
-       // write the file
-       write(outfd, input_file, len);
-
-       // write padding
-       padded_len = ((len + sizeof(footer) + sizeof(padding) - 1) & ~(sizeof(padding) - 1)) - sizeof(footer);
-       fprintf(stderr, "len=%08zx padded_len=%08zx\n", len, padded_len);
-       write(outfd, padding, padded_len - len);
-
-       // write footer
-       footer[0]  = (len   >>  0) & 0xff;
-       footer[1]  = (len   >>  8) & 0xff;
-       footer[2]  = (len   >> 16) & 0xff;
-       footer[3]  = (len   >> 24) & 0xff;
-       footer[4]  = (magic >>  0) & 0xff;
-       footer[5]  = (magic >>  8) & 0xff;
-       footer[6]  = (magic >> 16) & 0xff;
-       footer[7]  = (magic >> 24) & 0xff;
-       footer[8]  = (crc   >>  0) & 0xff;
-       footer[9]  = (crc   >>  8) & 0xff;
-       footer[10] = (crc   >> 16) & 0xff;
-       footer[11] = (crc   >> 24) & 0xff;
-       write(outfd, footer, sizeof(footer));
-
-       munmap(input_file, len);
-}
-
-int main(int argc, char **argv)
-{
-       int outfd;
-       int i;
-
-       parseopts(&argc, &argv);
-
-       if (argc < 1)
-               usage("wrong number of arguments");
-
-       if ((outfd = open(output_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1)
-       {
-               fprintf(stderr, "Error opening '%s' for writing: %s\n", output_file, strerror(errno));
-               exit(1);
-       }
-
-       for (i=0; i<argc; i++) {
-               appendfile(outfd, argv[i], i == 0);
-       }
-       write(outfd, signature, strlen(signature)+1);
-       close(outfd);
-
-       return 0;
-}