diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/firmware-utils/Makefile | 1 | ||||
| -rw-r--r-- | tools/firmware-utils/src/wndr3700.c | 150 |
2 files changed, 0 insertions, 151 deletions
diff --git a/tools/firmware-utils/Makefile b/tools/firmware-utils/Makefile index 770fcf5fd4..b53faaacc6 100644 --- a/tools/firmware-utils/Makefile +++ b/tools/firmware-utils/Makefile @@ -44,7 +44,6 @@ define Host/Compile $(call cc,pc1crypt) $(call cc,osbridge-crc) $(call cc,wrt400n cyg_crc32) - $(call cc,wndr3700) $(call cc,mkdniimg) $(call cc,mktitanimg) $(call cc,mkchkimg) diff --git a/tools/firmware-utils/src/wndr3700.c b/tools/firmware-utils/src/wndr3700.c deleted file mode 100644 index 97b5f1d455..0000000000 --- a/tools/firmware-utils/src/wndr3700.c +++ /dev/null @@ -1,150 +0,0 @@ -/* - * wndr3700.c - partially based on OpenWrt's add_header.c - * - * Copyright (C) 2009 Anael Orlinski <naouel@naouel.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License, - * version 2 as published by the Free Software Foundation. - * - * 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. - */ - -/* - * The add_header utility used by various vendors preprends the buf - * image with a header containing a CRC32 value which is generated for the - * model id + reserved space for CRC32 + buf, then replaces the reserved - * area with the actual CRC32. This replacement tool mimics this behavior. - */ - -#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 */ - -#define WNDR3700_MAGIC_LEN 4 - -static uint32_t crc32[1<<BPB]; -static char *magic = "3700"; - -static void init_crc32() -{ - const uint32_t poly = ntohl(0x2083b8ed); - 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(unsigned char *buf, size_t len) -{ - uint32_t crc = 0xFFFFFFFF; - - for (; len; len--, buf++) - crc = crc32[(uint8_t)crc ^ *buf] ^ (crc >> BPB); - return ~crc; -} - -struct header { - unsigned char magic[WNDR3700_MAGIC_LEN]; - uint32_t crc; - unsigned char stuff[56]; -}; - -static void usage(const char *) __attribute__ (( __noreturn__ )); - -static void usage(const char *mess) -{ - fprintf(stderr, "Error: %s\n", mess); - fprintf(stderr, "Usage: wndr3700 input_file output_file [magic]\n"); - fprintf(stderr, "\n"); - exit(1); -} - -int main(int argc, char **argv) -{ - off_t len; // of original buf - off_t buflen; // of the output file - int fd; - void *input_file; // pointer to the input file (mmmapped) - struct header header; - unsigned char *buf; // pointer to prefix + copy of original buf - - // verify parameters - - if (argc < 3) - usage("wrong number of arguments"); - - if (argc > 3) - magic = argv[3]; - - if (strlen(magic) != WNDR3700_MAGIC_LEN) { - fprintf(stderr, "Invalid magic: '%s'\n", magic); - exit(1); - } - - // mmap input_file - if ((fd = open(argv[1], 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 loading file %s: %s\n", argv[1], strerror(errno)); - exit(1); - } - - buflen = len; - - init_crc32(); - - // preload header - memcpy(&header, input_file, sizeof(header)); - - memcpy(header.magic, magic, WNDR3700_MAGIC_LEN); - header.crc = 0; - - // create a firmware image in memory and copy the input_file to it - buf = malloc(buflen); - memcpy(buf, input_file, len); - - // CRC of temporary header - header.crc = htonl(crc32buf((unsigned char*)&header, sizeof(header))); - - memcpy(buf, &header, sizeof(header)); - - // write the buf - if ((fd = open(argv[2], O_CREAT|O_WRONLY|O_TRUNC,0644)) < 0 - || write(fd, buf, buflen) != buflen - || close(fd) < 0) - { - fprintf(stderr, "Error storing file %s: %s\n", argv[2], strerror(errno)); - exit(2); - } - - free(buf); - - munmap(input_file,len); - - return 0; -} |