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tools/firmware-utils: add seama tool
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 33840
This commit is contained in:
Gabor Juhos
parent
0045449b1b
commit
25250a22ef
@ -60,6 +60,7 @@ define Host/Compile
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$(call cc,mkbrnimg)
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$(call cc,mkdapimg)
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$(call cc, mkcameofw, -Wall)
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$(call cc,seama md5)
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endef
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define Host/Install
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529
tools/firmware-utils/src/seama.c
Normal file
529
tools/firmware-utils/src/seama.c
Normal file
@ -0,0 +1,529 @@
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/* vi: set sw=4 ts=4: */
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/*
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* Copyright (C) 2008, Alpha Networks, Inc.
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* Created by David Hsieh <david_hsieh@alphanetworks.com>
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* All right reserved.
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*
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* (SEA)ttle i(MA)ge is the image which used in project seattle.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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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 <stdarg.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <string.h>
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#include <arpa/inet.h>
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#include "md5.h"
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#include "seama.h"
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#define PROGNAME "seama"
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#define VERSION "0.20"
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#define MAX_SEAMA_META_SIZE 1024
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#define MAX_META 128
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#define MAX_IMAGE 128
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extern int optind;
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extern char * optarg;
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static int o_verbose = 0; /* verbose mode. */
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static char * o_dump = NULL; /* Seama file to dump. */
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static char * o_seal = NULL; /* Seal the input images when file name exist. */
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static char * o_extract = NULL; /* Extract the seama file. */
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static char * o_images[MAX_IMAGE];/* The image files to pack or seal */
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static int o_isize = 0; /* number of images */
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static char * o_meta[MAX_META]; /* meta data array */
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static int o_msize = 0; /* size of meta array */
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static void verbose(const char * format, ...)
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{
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va_list marker;
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if (o_verbose)
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{
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va_start(marker, format);
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vfprintf(stdout, format, marker);
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va_end(marker);
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}
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}
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static void cleanup_exit(int exit_code)
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{
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verbose("%s: exit with code %d\n", PROGNAME, exit_code);
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exit(exit_code);
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}
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static void show_usage(int exit_code)
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{
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printf( PROGNAME " version " VERSION "\n"
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"usage: " PROGNAME " [OPTIONS]\n"
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" -h show this help message.\n"
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" -v verbose mode.\n"
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" -m {META data} META data.\n"
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" -d {file} dump the info of the seama file.\n"
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" -i {input file} image file name.\n"
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" -s {file} Seal the images to the seama file.\n"
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" -x {seama file} Extract the seama file.\n"
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"\n"
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" SEAMA can pack the input file (with -i) into a seama file.\n"
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" ex: seama -i target.file\n"
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" SEAMA can also seal multiple seama files into a single seama file.\n"
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" ex: seama -s final.file -i taget1.seama -i target2.seama\n"
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" To extract the raw image from SEAMA, you need to specify the meta.\n"
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" The first image match the specified meta will be extract to\n"
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" the output file which was specified with '-x'.\n"
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" ex: seama -x output -i seama.image -m file=sealpac\n"
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);
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cleanup_exit(exit_code);
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}
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static int parse_args(int argc, char * argv[])
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{
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int opt;
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while ((opt = getopt(argc, argv, "hvd:s:i:m:x:")) > 0)
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{
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switch (opt)
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{
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default: show_usage(-1); break;
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case 'h': show_usage(0); break;
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case 'v': o_verbose++; break;
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case 'd': o_dump = optarg; break;
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case 's': o_seal = optarg; break;
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case 'x': o_extract = optarg; break;
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case 'i':
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if (o_isize < MAX_IMAGE) o_images[o_isize++] = optarg;
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else printf("Exceed the maximum acceptable image files.!\n");
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break;
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case 'm':
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if (o_msize < MAX_META) o_meta[o_msize++] = optarg;
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else printf("Exceed the maximum acceptable META data.!\n");
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break;
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}
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}
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return 0;
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}
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/*******************************************************************/
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static size_t calculate_digest(FILE * fh, size_t size, uint8_t * digest)
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{
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MD5_CTX ctx;
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size_t bytes_left, bytes_read, i;
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uint8_t buf[MAX_SEAMA_META_SIZE];
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bytes_left = size ? size : sizeof(buf);
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bytes_read = 0;
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MD5_Init(&ctx);
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while (!feof(fh) && !ferror(fh) && bytes_left > 0)
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{
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i = bytes_left < sizeof(buf) ? bytes_left : sizeof(buf);
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i = fread(buf, sizeof(char), i, fh);
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if (i > 0)
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{
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MD5_Update(&ctx, buf, i);
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bytes_read += i;
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}
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if (size) bytes_left -= i;
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}
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MD5_Final(digest, &ctx);
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return bytes_read;
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}
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#define READ_BUFF_SIZE 8*1024
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static size_t copy_file(FILE * to, FILE * from)
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{
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size_t i, fsize = 0;
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uint8_t buf[READ_BUFF_SIZE];
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while (!feof(from) && !ferror(from))
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{
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i = fread(buf, sizeof(uint8_t), READ_BUFF_SIZE, from);
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if (i > 0)
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{
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fsize += i;
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fwrite(buf, sizeof(uint8_t), i, to);
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}
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}
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return fsize;
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}
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static int verify_seama(const char * fname, int msg)
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{
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FILE * fh = NULL;
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struct stat st;
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seamahdr_t shdr;
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uint8_t checksum[16];
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uint8_t digest[16];
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uint8_t buf[MAX_SEAMA_META_SIZE];
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size_t msize, isize, i;
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int ret = -1;
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#define ERRBREAK(fmt, args...) { if (msg) printf(fmt, ##args); break; }
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do
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{
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if (stat(fname, &st) < 0) ERRBREAK("Unable to get the info of '%s'\n",fname);
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if ((fh = fopen(fname, "r+"))==NULL) ERRBREAK("Unable to open '%s' for reading!\n",fname);
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/* Dump SEAMA header */
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if (msg) printf("FILE - %s (%d bytes)\n", fname, (int)st.st_size);
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/* SEAMA */
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while (!feof(fh) && !ferror(fh))
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{
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/* read header */
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if (fread(&shdr, sizeof(shdr), 1, fh) != 1) break;
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/* Check the magic number */
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if (shdr.magic != htonl(SEAMA_MAGIC)) ERRBREAK("Invalid SEAMA magic. Probably no more SEAMA!\n");
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/* Get the size */
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isize = ntohl(shdr.size);
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msize = ntohs(shdr.metasize);
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/* The checksum exist only if size is greater than zero. */
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if (isize > 0)
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{
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if (fread(checksum, sizeof(checksum), 1, fh) != 1)
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ERRBREAK("Error reading checksum !\n");
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}
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/* Check the META size. */
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if (msize > sizeof(buf)) ERRBREAK("META data in SEAMA header is too large!\n");
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/* Read META data. */
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if (fread(buf, sizeof(char), msize, fh) != msize)
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ERRBREAK("Unable to read SEAMA META data!\n");
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/* dump header */
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if (msg)
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{
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printf("SEAMA ==========================================\n");
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printf(" magic : %08x\n", ntohl(shdr.magic));
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printf(" meta size : %d bytes\n", msize);
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for (i=0; i<msize; i+=(strlen((const char *)&buf[i])+1))
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printf(" meta data : %s\n", &buf[i]);
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printf(" image size : %d bytes\n", isize);
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}
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/* verify checksum */
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if (isize > 0)
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{
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if (msg)
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{
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printf(" checksum : ");
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for (i=0; i<16; i++) printf("%02X", checksum[i]);
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printf("\n");
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}
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/* Calculate the checksum */
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calculate_digest(fh, isize, digest);
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if (msg)
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{
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printf(" digest : ");
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for (i=0; i<16; i++) printf("%02X", digest[i]);
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printf("\n");
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}
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if (memcmp(checksum, digest, 16)!=0) ERRBREAK("!!ERROR!! checksum error !!\n");
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ret = 0;
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}
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}
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if (msg) printf("================================================\n");
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} while (0);
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if (fh) fclose(fh);
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return ret;
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}
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static size_t write_seama_header(FILE * fh, char * meta[], size_t msize, size_t size)
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{
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seamahdr_t shdr;
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size_t i;
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uint16_t metasize = 0;
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/* Calculate the META size */
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for (i=0; i<msize; i++) metasize += (strlen(meta[i]) + 1);
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//+++ let meta data end on 4 alignment by siyou. 2010/3/1 03:58pm
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metasize = ((metasize+3)/4)*4;
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verbose("SEAMA META : %d bytes\n", metasize);
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/* Fill up the header, all the data endian should be network byte order. */
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shdr.magic = htonl(SEAMA_MAGIC);
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shdr.reserved = 0;
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shdr.metasize = htons(metasize);
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shdr.size = htonl(size);
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/* Write the header */
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return fwrite(&shdr, sizeof(seamahdr_t), 1, fh);
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}
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static size_t write_checksum(FILE * fh, uint8_t * checksum)
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{
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return fwrite(checksum, sizeof(uint8_t), 16, fh);
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}
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static size_t write_meta_data(FILE * fh, char * meta[], size_t size)
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{
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size_t i,j;
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size_t ret = 0;
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for (i=0; i<size; i++)
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{
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verbose("SEAMA META data : %s\n", meta[i]);
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j = fwrite(meta[i], sizeof(char), strlen(meta[i])+1, fh);
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if (j != strlen(meta[i])+1) return 0;
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ret += j;
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}
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//+++ let meta data end on 4 alignment by siyou. 2010/3/1 03:58pm
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j = ((ret+3)/4)*4;
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for ( ; ret < j; ret++)
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fwrite("", sizeof(char), 1, fh);
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return ret;
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}
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/*******************************************************************/
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static void dump_seama(const char * fname)
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{
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verify_seama(fname, 1);
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}
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static void seal_files(const char * file)
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{
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FILE * fh;
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FILE * ifh;
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size_t i;
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/* Each image should be seama. */
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for (i = 0; i < o_isize; i++)
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{
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if (verify_seama(o_images[i], 0) < 0)
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{
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printf("'%s' is not a seama file !\n",o_images[i]);
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return;
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}
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}
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/* Open file for write */
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fh = fopen(file, "w+");
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if (fh)
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{
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/* Write the header. */
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write_seama_header(fh, o_meta, o_msize, 0);
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write_meta_data(fh, o_meta, o_msize);
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/* Write image files */
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for (i=0; i<o_isize; i++)
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{
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ifh = fopen(o_images[i], "r+");
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if (ifh)
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{
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copy_file(fh, ifh);
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fclose(ifh);
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}
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}
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fclose(fh);
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}
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}
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static void pack_files(void)
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{
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FILE * fh;
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FILE * ifh;
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size_t i, fsize;
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char filename[512];
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uint8_t digest[16];
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for (i=0; i<o_isize; i++)
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{
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/* Open the input file. */
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ifh = fopen(o_images[i], "r+");
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if (ifh)
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{
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fsize = calculate_digest(ifh, 0, digest);
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verbose("file size (%s) : %d\n", o_images[i], fsize);
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rewind(ifh);
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/* Open the output file. */
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sprintf(filename, "%s.seama", o_images[i]);
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fh = fopen(filename, "w+");
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if (fh)
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{
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write_seama_header(fh, o_meta, o_msize, fsize);
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write_checksum(fh, digest);
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write_meta_data(fh, o_meta, o_msize);
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copy_file(fh, ifh);
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fclose(fh);
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}
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fclose(ifh);
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}
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else
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{
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printf("Unable to open image file '%s'\n",o_images[i]);
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}
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}
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}
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/**************************************************************************/
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static int match_meta(const char * meta, size_t size)
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{
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size_t i, j;
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int match;
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for (i = 0; i < o_msize; i++)
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{
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for (match = 0, j = 0; j < size; j += (strlen(&meta[j])+1))
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if (strcmp(&meta[j], o_meta[i])==0) { match++; break; }
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if (!match) return 0;
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}
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return 1;
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}
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static void extract_file(const char * output)
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{
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FILE * ifh = NULL;
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FILE * ofh = NULL;
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size_t msize, isize, i, m;
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seamahdr_t shdr;
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uint8_t buf[MAX_SEAMA_META_SIZE];
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int done = 0;
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/* We need meta for searching the target image. */
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if (o_msize == 0)
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{
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printf("SEAMA: need meta for searching image.\n");
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return;
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}
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/* Walk through each input file */
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for (i = 0; i < o_isize; i++)
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{
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/* verify the input file */
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if (verify_seama(o_images[i], 0) < 0)
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{
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printf("SEAMA: '%s' is not a seama file !\n", o_images[i]);
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continue;
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}
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/* open the input file */
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ifh = fopen(o_images[i], "r");
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if (!ifh) continue;
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/* read file */
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while (!feof(ifh) && !ferror(ifh))
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{
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/* read header */
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fread(&shdr, sizeof(shdr), 1, ifh);
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if (shdr.magic != htonl(SEAMA_MAGIC)) break;
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/* Get the size */
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isize = ntohl(shdr.size);
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msize = ntohs(shdr.metasize);
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if (isize == 0)
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{
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while (msize > 0)
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{
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m = fread(buf, sizeof(char), (msize < MAX_SEAMA_META_SIZE) ? msize : MAX_SEAMA_META_SIZE, ifh);
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if (m <= 0) break;
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msize -= m;
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}
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continue;
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}
|
||||
/* read checksum */
|
||||
fread(buf, sizeof(char), 16, ifh);
|
||||
if (msize > 0)
|
||||
{
|
||||
/* read META */
|
||||
fread(buf, sizeof(char), msize, ifh);
|
||||
if (match_meta((const char *)buf, msize))
|
||||
{
|
||||
printf("SEAMA: found image @ '%s', image size: %d\n", o_images[i], isize);
|
||||
/* open output file */
|
||||
ofh = fopen(output, "w");
|
||||
if (!ofh) printf("SEAMA: unable to open '%s' for writting.\n",output);
|
||||
else
|
||||
{
|
||||
while (isize > 0)
|
||||
{
|
||||
m = fread(buf, sizeof(char), (isize < MAX_SEAMA_META_SIZE) ? isize : MAX_SEAMA_META_SIZE, ifh);
|
||||
if (m <= 0) break;
|
||||
fwrite(buf, sizeof(char), m, ofh);
|
||||
isize -= m;
|
||||
}
|
||||
fclose(ofh);
|
||||
}
|
||||
done++;
|
||||
break;
|
||||
}
|
||||
}
|
||||
while (isize > 0)
|
||||
{
|
||||
m = fread(buf, sizeof(char), (isize < MAX_SEAMA_META_SIZE) ? isize : MAX_SEAMA_META_SIZE, ifh);
|
||||
if (m <= 0) break;
|
||||
isize -= m;
|
||||
}
|
||||
}
|
||||
/* close the file. */
|
||||
fclose(ifh);
|
||||
if (done) break;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
/*******************************************************************/
|
||||
#ifdef RGBIN_BOX
|
||||
int seama_main(int argc, char * argv[], char * env[])
|
||||
#else
|
||||
int main(int argc, char * argv[], char * env[])
|
||||
#endif
|
||||
{
|
||||
verbose("SEAMA version " VERSION "\n");
|
||||
|
||||
/* parse the arguments */
|
||||
if (parse_args(argc, argv) < 0) show_usage(9);
|
||||
|
||||
/* Do the works */
|
||||
if (o_dump) dump_seama(o_dump);
|
||||
else if (o_seal) seal_files(o_seal);
|
||||
else if (o_extract) extract_file(o_extract);
|
||||
else pack_files();
|
||||
|
||||
cleanup_exit(0);
|
||||
return 0;
|
||||
}
|
||||
108
tools/firmware-utils/src/seama.h
Normal file
108
tools/firmware-utils/src/seama.h
Normal file
@ -0,0 +1,108 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* (SEA)ttle i(MA)ge is the image which used in project seattle.
|
||||
*
|
||||
* Created by David Hsieh <david_hsieh@alphanetworks.com>
|
||||
* Copyright (C) 2008-2009 Alpha Networks, Inc.
|
||||
*
|
||||
* This file is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either'
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* The GNU C Library 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with the GNU C Library; if not, write to the Free
|
||||
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
* 02111-1307 USA.
|
||||
*/
|
||||
|
||||
#ifndef __SEAMA_HEADER_FILE__
|
||||
#define __SEAMA_HEADER_FILE__
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#define SEAMA_MAGIC 0x5EA3A417
|
||||
|
||||
/*
|
||||
* SEAMA looks like the following map.
|
||||
* All the data of the header should be in network byte order.
|
||||
*
|
||||
* +-------------+-------------+------------
|
||||
* | SEAMA magic | ^
|
||||
* +-------------+-------------+ |
|
||||
* | reserved | meta size | |
|
||||
* +-------------+-------------+ header
|
||||
* | image size (0 bytes) | |
|
||||
* +-------------+-------------+ |
|
||||
* ~ Meta data ~ v
|
||||
* +-------------+-------------+------------
|
||||
* | SEAMA magic | ^ ^
|
||||
* +-------------+-------------+ | |
|
||||
* | reserved | meta size | | |
|
||||
* +-------------+-------------+ | |
|
||||
* | image size | | |
|
||||
* +-------------+-------------+ header |
|
||||
* | | | |
|
||||
* | 16 bytes of MD5 digest | | |
|
||||
* | | | |
|
||||
* | | | |
|
||||
* +-------------+-------------+ | |
|
||||
* ~ Meta data ~ v |
|
||||
* +-------------+-------------+------- |
|
||||
* | | |
|
||||
* | Image of the 1st entity | |
|
||||
* ~ ~ 1st entity
|
||||
* | | |
|
||||
* | | v
|
||||
* +-------------+-------------+-------------
|
||||
* | SEAMA magic | ^ ^
|
||||
* +-------------+-------------+ | |
|
||||
* | reserved | meta size | | |
|
||||
* +-------------+-------------+ | |
|
||||
* | image size | | |
|
||||
* +-------------+-------------+ header |
|
||||
* | | | |
|
||||
* | 16 bytes of MD5 digest | | |
|
||||
* | | | |
|
||||
* | | | |
|
||||
* +-------------+-------------+ | |
|
||||
* ~ Meta data ~ v |
|
||||
* +-------------+-------------+------- |
|
||||
* | | |
|
||||
* | Image of the 2nd entity | |
|
||||
* ~ ~ 2nd entity
|
||||
* | | |
|
||||
* | | v
|
||||
* +-------------+-------------+-------------
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
* SEAMA header
|
||||
*
|
||||
* |<-------- 32 bits -------->|
|
||||
* +-------------+-------------+
|
||||
* | SEAMA magic |
|
||||
* +-------------+-------------+
|
||||
* | reserved | meta size |
|
||||
* +-------------+-------------+
|
||||
* | image size |
|
||||
* +-------------+-------------+
|
||||
*/
|
||||
/* seama header */
|
||||
typedef struct seama_hdr seamahdr_t;
|
||||
struct seama_hdr
|
||||
{
|
||||
uint32_t magic; /* should always be SEAMA_MAGIC. */
|
||||
uint16_t reserved; /* reserved for */
|
||||
uint16_t metasize; /* size of the META data */
|
||||
uint32_t size; /* size of the image */
|
||||
} __attribute__ ((packed));
|
||||
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user