blob: 40a34831383c52f37efde08e081aa42466cbdac1 [file] [log] [blame]
/*
* (C) Copyright 2008 Semihalf
*
* (C) Copyright 2000-2004
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* 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
*/
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include "compiler.h"
#include "../include/image.h"
#include "../common/image.c"
char *cmdname;
#include "../include/zlib.h"
#include "../lib/crc32.c"
//extern unsigned long crc32 (unsigned long crc, const char *buf, unsigned int len);
static void copy_file (int, const char *, int);
static void usage (void);
static int get_table_entry (table_entry_t *, char *, char *);
static int get_arch(char *);
static int get_comp(char *);
static int get_os (char *);
static int get_type(char *);
char *datafile;
char *imagefile;
int dflag = 0;
int eflag = 0;
int lflag = 0;
int vflag = 0;
int xflag = 0;
int opt_os = IH_OS_LINUX;
int opt_arch = IH_ARCH_PPC;
int opt_type = IH_TYPE_KERNEL;
int opt_comp = IH_COMP_GZIP;
image_header_t header;
image_header_t *hdr = &header;
int
main (int argc, char **argv)
{
int ifd;
uint32_t checksum;
uint32_t addr;
uint32_t ep;
struct stat sbuf;
char *ptr;
char *name = "";
cmdname = *argv;
addr = ep = 0;
while (--argc > 0 && **++argv == '-') {
while (*++*argv) {
switch (**argv) {
case 'l':
lflag = 1;
break;
case 'A':
if ((--argc <= 0) ||
(opt_arch = get_arch(*++argv)) < 0)
usage ();
goto NXTARG;
case 'C':
if ((--argc <= 0) ||
(opt_comp = get_comp(*++argv)) < 0)
usage ();
goto NXTARG;
case 'O':
if ((--argc <= 0) ||
(opt_os = get_os(*++argv)) < 0)
usage ();
goto NXTARG;
case 'T':
if ((--argc <= 0) ||
(opt_type = get_type(*++argv)) < 0)
usage ();
goto NXTARG;
case 'a':
if (--argc <= 0)
usage ();
addr = strtoul (*++argv, (char **)&ptr, 16);
if (*ptr) {
fprintf (stderr,
"%s: invalid load address %s\n",
cmdname, *argv);
exit (EXIT_FAILURE);
}
goto NXTARG;
case 'd':
if (--argc <= 0)
usage ();
datafile = *++argv;
dflag = 1;
goto NXTARG;
case 'e':
if (--argc <= 0)
usage ();
ep = strtoul (*++argv, (char **)&ptr, 16);
if (*ptr) {
fprintf (stderr,
"%s: invalid entry point %s\n",
cmdname, *argv);
exit (EXIT_FAILURE);
}
eflag = 1;
goto NXTARG;
case 'n':
if (--argc <= 0)
usage ();
name = *++argv;
goto NXTARG;
case 'v':
vflag++;
break;
case 'x':
xflag++;
break;
default:
usage ();
}
}
NXTARG: ;
}
if ((argc != 1) || ((lflag ^ dflag) == 0))
usage();
if (!eflag) {
ep = addr;
/* If XIP, entry point must be after the barebox header */
if (xflag)
ep += sizeof(image_header_t);
}
/*
* If XIP, ensure the entry point is equal to the load address plus
* the size of the barebox header.
*/
if (xflag) {
if (ep != addr + sizeof(image_header_t)) {
fprintf (stderr,
"%s: For XIP, the entry point must be the load addr + %lu\n",
cmdname,
(unsigned long)sizeof(image_header_t));
exit (EXIT_FAILURE);
}
}
imagefile = *argv;
if (lflag) {
ifd = open(imagefile, O_RDONLY|O_BINARY);
} else {
ifd = open(imagefile, O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
}
if (ifd < 0) {
fprintf (stderr, "%s: Can't open %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
if (lflag) {
int len;
char *data;
/*
* list header information of existing image
*/
if (fstat(ifd, &sbuf) < 0) {
fprintf (stderr, "%s: Can't stat %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
fprintf (stderr,
"%s: Bad size: \"%s\" is no valid image\n",
cmdname, imagefile);
exit (EXIT_FAILURE);
}
ptr = mmap(0, sbuf.st_size,
PROT_READ, MAP_SHARED, ifd, 0);
if ((caddr_t)ptr == (caddr_t)-1) {
fprintf (stderr, "%s: Can't read %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
/*
* create copy of header so that we can blank out the
* checksum field for checking - this can't be done
* on the PROT_READ mapped data.
*/
memcpy (hdr, ptr, sizeof(image_header_t));
if (image_get_magic(hdr) != IH_MAGIC) {
fprintf (stderr,
"%s: Bad Magic Number: \"%s\" is no valid image\n",
cmdname, imagefile);
exit (EXIT_FAILURE);
}
data = (char *)hdr;
len = image_get_header_size();
checksum = image_get_hcrc(hdr);
image_set_hcrc(hdr, 0); /* clear for re-calculation */
if (crc32 (0, (unsigned char *)data, len) != checksum) {
fprintf (stderr,
"%s: ERROR: \"%s\" has bad header checksum!\n",
cmdname, imagefile);
exit (EXIT_FAILURE);
}
data = (char *)(ptr + image_get_header_size());
len = sbuf.st_size - image_get_header_size() ;
if (crc32 (0, (unsigned char *)data, len) != image_get_dcrc(hdr)) {
fprintf (stderr,
"%s: ERROR: \"%s\" has corrupted data!\n",
cmdname, imagefile);
exit (EXIT_FAILURE);
}
/* for multi-file images we need the data part, too */
image_print_contents((image_header_t *)ptr);
(void) munmap((void *)ptr, sbuf.st_size);
(void) close (ifd);
exit (EXIT_SUCCESS);
}
/*
* Must be -w then:
*
* write dummy header, to be fixed later
*/
memset (hdr, 0, image_get_header_size());
if (write(ifd, hdr, image_get_header_size()) != image_get_header_size()) {
fprintf (stderr, "%s: Write error on %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
if ((opt_type == IH_TYPE_MULTI) ||
(opt_type == IH_TYPE_SCRIPT)) {
char *file = datafile;
uint32_t size;
for (;;) {
char *sep = NULL;
if (file) {
if ((sep = strchr(file, ':')) != NULL) {
*sep = '\0';
}
if (stat (file, &sbuf) < 0) {
fprintf (stderr, "%s: Can't stat %s: %s\n",
cmdname, file, strerror(errno));
exit (EXIT_FAILURE);
}
size = htonl(sbuf.st_size);
} else {
size = 0;
}
if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
fprintf (stderr, "%s: Write error on %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
if (!file) {
break;
}
if (sep) {
*sep = ':';
file = sep + 1;
} else {
file = NULL;
}
}
file = datafile;
for (;;) {
char *sep = strchr(file, ':');
if (sep) {
*sep = '\0';
copy_file (ifd, file, 1);
*sep++ = ':';
file = sep;
} else {
copy_file (ifd, file, 0);
break;
}
}
} else {
copy_file (ifd, datafile, 0);
}
/* We're a bit of paranoid */
#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
(void) fdatasync (ifd);
#else
(void) fsync (ifd);
#endif
if (fstat(ifd, &sbuf) < 0) {
fprintf (stderr, "%s: Can't stat %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
ptr = mmap(0, sbuf.st_size,
PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
if (ptr == MAP_FAILED) {
fprintf (stderr, "%s: Can't map %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
hdr = (image_header_t *)ptr;
checksum = crc32 (0,
(unsigned char *)(ptr + image_get_header_size()),
sbuf.st_size - image_get_header_size()
);
/* Build new header */
image_set_magic(hdr, IH_MAGIC);
image_set_time(hdr, sbuf.st_mtime);
image_set_size(hdr, sbuf.st_size - image_get_header_size());
image_set_load(hdr, addr);
image_set_ep(hdr, ep);
image_set_dcrc(hdr, checksum);
image_set_os(hdr, opt_os);
image_set_arch(hdr, opt_arch);
image_set_type(hdr, opt_type);
image_set_comp(hdr, opt_comp);
image_set_name(hdr, name);
checksum = crc32(0,(unsigned char *)hdr, image_get_header_size());
image_set_hcrc(hdr, checksum);
image_print_contents(hdr);
(void) munmap((void *)ptr, sbuf.st_size);
/* We're a bit of paranoid */
#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
(void) fdatasync (ifd);
#else
(void) fsync (ifd);
#endif
if (close(ifd)) {
fprintf (stderr, "%s: Write error on %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
exit (EXIT_SUCCESS);
}
static void
copy_file (int ifd, const char *datafile, int pad)
{
int dfd;
struct stat sbuf;
unsigned char *ptr;
int tail;
int zero = 0;
int offset = 0;
int size;
if (vflag) {
fprintf (stderr, "Adding Image %s\n", datafile);
}
if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
fprintf (stderr, "%s: Can't open %s: %s\n",
cmdname, datafile, strerror(errno));
exit (EXIT_FAILURE);
}
if (fstat(dfd, &sbuf) < 0) {
fprintf (stderr, "%s: Can't stat %s: %s\n",
cmdname, datafile, strerror(errno));
exit (EXIT_FAILURE);
}
ptr = (unsigned char *)mmap(0, sbuf.st_size,
PROT_READ, MAP_SHARED, dfd, 0);
if (ptr == (unsigned char *)MAP_FAILED) {
fprintf (stderr, "%s: Can't read %s: %s\n",
cmdname, datafile, strerror(errno));
exit (EXIT_FAILURE);
}
if (xflag) {
unsigned char *p = NULL;
/*
* XIP: do not append the image_header_t at the
* beginning of the file, but consume the space
* reserved for it.
*/
if ((unsigned)sbuf.st_size < image_get_header_size()) {
fprintf (stderr,
"%s: Bad size: \"%s\" is too small for XIP\n",
cmdname, datafile);
exit (EXIT_FAILURE);
}
for (p = ptr; p < ptr + image_get_header_size(); p++) {
if ( *p != 0xff ) {
fprintf (stderr,
"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
cmdname, datafile);
exit (EXIT_FAILURE);
}
}
offset = image_get_header_size();
}
size = sbuf.st_size - offset;
if (write(ifd, ptr + offset, size) != size) {
fprintf (stderr, "%s: Write error on %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
if (pad && ((tail = size % 4) != 0)) {
if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
fprintf (stderr, "%s: Write error on %s: %s\n",
cmdname, imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
}
(void) munmap((void *)ptr, sbuf.st_size);
(void) close (dfd);
}
void
usage ()
{
fprintf (stderr, "Usage: %s -l image\n"
" -l ==> list image header information\n"
" %s [-x] -A arch -O os -T type -C comp "
"-a addr -e ep -n name -d data_file[:data_file...] image\n",
cmdname, cmdname);
fprintf (stderr, " -A ==> set architecture to 'arch'\n"
" -O ==> set operating system to 'os'\n"
" -T ==> set image type to 'type'\n"
" -C ==> set compression type 'comp'\n"
" -a ==> set load address to 'addr' (hex)\n"
" -e ==> set entry point to 'ep' (hex)\n"
" -n ==> set image name to 'name'\n"
" -d ==> use image data from 'datafile'\n"
" -x ==> set XIP (execute in place)\n"
);
exit (EXIT_FAILURE);
}
static int get_arch(char *name)
{
return (get_table_entry(arch_name, "CPU", name));
}
static int get_comp(char *name)
{
return (get_table_entry(comp_name, "Compression", name));
}
static int get_os (char *name)
{
return (get_table_entry(os_name, "OS", name));
}
static int get_type(char *name)
{
return (get_table_entry(type_name, "Image", name));
}
static int get_table_entry (table_entry_t *table, char *msg, char *name)
{
table_entry_t *t;
int first = 1;
for (t=table; t->id>=0; ++t) {
if (t->sname && strcasecmp(t->sname, name)==0)
return (t->id);
}
fprintf (stderr, "\nInvalid %s Type - valid names are", msg);
for (t=table; t->id>=0; ++t) {
if (t->sname == NULL)
continue;
fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname);
first = 0;
}
fprintf (stderr, "\n");
return (-1);
}