blob: 1504ef874b629d4d40cc995f7794aa1f9baaacc2 [file] [log] [blame]
/*
* (C) Copyright 2000-2002
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
* All rights reserved.
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifndef __WIN32__
#include <netinet/in.h> /* for host / network byte order conversions */
#endif
#include <sys/mman.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#if defined(__BEOS__) || defined(__NetBSD__) || defined(__APPLE__)
#include <inttypes.h>
#endif
#ifdef __WIN32__
typedef unsigned int __u32;
#define SWAP_LONG(x) \
((__u32)( \
(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
(((__u32)(x) & (__u32)0xff000000UL) >> 24) ))
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
#define ntohl(a) SWAP_LONG(a)
#define htonl(a) SWAP_LONG(a)
#endif /* __WIN32__ */
#include <image.h>
extern int errno;
#ifndef MAP_FAILED
#define MAP_FAILED (-1)
#endif
char *cmdname;
extern unsigned long crc32 (unsigned long crc, const char *buf, unsigned int len);
typedef struct table_entry {
int val; /* as defined in image.h */
char *sname; /* short (input) name */
char *lname; /* long (output) name */
} table_entry_t;
table_entry_t arch_name[] = {
{ IH_CPU_INVALID, NULL, "Invalid CPU", },
{ IH_CPU_ALPHA, "alpha", "Alpha", },
{ IH_CPU_ARM, "arm", "ARM", },
{ IH_CPU_I386, "x86", "Intel x86", },
{ IH_CPU_IA64, "ia64", "IA64", },
{ IH_CPU_MIPS, "mips", "MIPS", },
{ IH_CPU_MIPS64, "mips64", "MIPS 64 Bit", },
{ IH_CPU_PPC, "ppc", "PowerPC", },
{ IH_CPU_S390, "s390", "IBM S390", },
{ IH_CPU_SH, "sh", "SuperH", },
{ IH_CPU_SPARC, "sparc", "SPARC", },
{ IH_CPU_SPARC64, "sparc64", "SPARC 64 Bit", },
{ -1, "", "", },
};
table_entry_t os_name[] = {
{ IH_OS_INVALID, NULL, "Invalid OS", },
{ IH_OS_OPENBSD, "openbsd", "OpenBSD", },
{ IH_OS_NETBSD, "netbsd", "NetBSD", },
{ IH_OS_FREEBSD, "freebsd", "FreeBSD", },
{ IH_OS_4_4BSD, "4_4bsd", "4_4BSD", },
{ IH_OS_LINUX, "linux", "Linux", },
{ IH_OS_SVR4, "svr4", "SVR4", },
{ IH_OS_ESIX, "esix", "Esix", },
{ IH_OS_SOLARIS, "solaris", "Solaris", },
{ IH_OS_IRIX, "irix", "Irix", },
{ IH_OS_SCO, "sco", "SCO", },
{ IH_OS_DELL, "dell", "Dell", },
{ IH_OS_NCR, "ncr", "NCR", },
{ IH_OS_LYNXOS, "lynxos", "LynxOS", },
{ IH_OS_VXWORKS, "vxworks", "VxWorks", },
{ IH_OS_PSOS, "psos", "pSOS", },
{ IH_OS_QNX, "qnx", "QNX", },
{ IH_OS_U_BOOT, "u-boot", "U-Boot", },
{ IH_OS_RTEMS, "rtems", "RTEMS", },
{ -1, "", "", },
};
table_entry_t type_name[] = {
{ IH_TYPE_INVALID, NULL, "Invalid Image", },
{ IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
{ IH_TYPE_KERNEL, "kernel", "Kernel Image", },
{ IH_TYPE_RAMDISK, "ramdisk", "RAMDisk Image", },
{ IH_TYPE_MULTI, "multi", "Multi-File Image", },
{ IH_TYPE_FIRMWARE, "firmware", "Firmware", },
{ IH_TYPE_SCRIPT, "script", "Script", },
{ -1, "", "", },
};
table_entry_t comp_name[] = {
{ IH_COMP_NONE, "none", "uncompressed", },
{ IH_COMP_GZIP, "gzip", "gzip compressed", },
{ IH_COMP_BZIP2, "bzip2", "bzip2 compressed", },
{ -1, "", "", },
};
static void copy_file (int, const char *, int);
static void usage (void);
static void print_header (image_header_t *);
static void print_type (image_header_t *);
static char *put_table_entry (table_entry_t *, char *, int);
static char *put_arch (int);
static char *put_type (int);
static char *put_os (int);
static char *put_comp (int);
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_CPU_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;
unsigned 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 U-Boot 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 U-Boot 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);
} else {
#ifdef __WIN32__
ifd = open(imagefile, O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
#else
ifd = open(imagefile, O_RDWR|O_CREAT|O_TRUNC, 0666);
#endif
}
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 (sbuf.st_size < sizeof(image_header_t)) {
fprintf (stderr,
"%s: Bad size: \"%s\" is no valid image\n",
cmdname, imagefile);
exit (EXIT_FAILURE);
}
ptr = (unsigned char *)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 (ntohl(hdr->ih_magic) != IH_MAGIC) {
fprintf (stderr,
"%s: Bad Magic Number: \"%s\" is no valid image\n",
cmdname, imagefile);
exit (EXIT_FAILURE);
}
data = (char *)hdr;
len = sizeof(image_header_t);
checksum = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = htonl(0); /* clear for re-calculation */
if (crc32 (0, data, len) != checksum) {
fprintf (stderr,
"*** Warning: \"%s\" has bad header checksum!\n",
imagefile);
}
data = (char *)(ptr + sizeof(image_header_t));
len = sbuf.st_size - sizeof(image_header_t) ;
if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
fprintf (stderr,
"*** Warning: \"%s\" has corrupted data!\n",
imagefile);
}
/* for multi-file images we need the data part, too */
print_header ((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, sizeof(image_header_t));
if (write(ifd, hdr, sizeof(image_header_t)) != sizeof(image_header_t)) {
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;
unsigned long 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__)
(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 = (unsigned char *)mmap(0, sbuf.st_size,
PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
if (ptr == (unsigned char *)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,
(const char *)(ptr + sizeof(image_header_t)),
sbuf.st_size - sizeof(image_header_t)
);
/* Build new header */
hdr->ih_magic = htonl(IH_MAGIC);
hdr->ih_time = htonl(sbuf.st_mtime);
hdr->ih_size = htonl(sbuf.st_size - sizeof(image_header_t));
hdr->ih_load = htonl(addr);
hdr->ih_ep = htonl(ep);
hdr->ih_dcrc = htonl(checksum);
hdr->ih_os = opt_os;
hdr->ih_arch = opt_arch;
hdr->ih_type = opt_type;
hdr->ih_comp = opt_comp;
strncpy((char *)hdr->ih_name, name, IH_NMLEN);
checksum = crc32(0,(const char *)hdr,sizeof(image_header_t));
hdr->ih_hcrc = htonl(checksum);
print_header (hdr);
(void) munmap((void *)ptr, sbuf.st_size);
/* We're a bit of paranoid */
#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__)
(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)) < 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 (sbuf.st_size < sizeof(image_header_t)) {
fprintf (stderr,
"%s: Bad size: \"%s\" is too small for XIP\n",
cmdname, datafile);
exit (EXIT_FAILURE);
}
for (p=ptr; p < ptr+sizeof(image_header_t); p++) {
if ( *p != 0xff ) {
fprintf (stderr,
"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
cmdname, datafile);
exit (EXIT_FAILURE);
}
}
offset = sizeof(image_header_t);
}
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 -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 void
print_header (image_header_t *hdr)
{
time_t timestamp;
uint32_t size;
timestamp = (time_t)ntohl(hdr->ih_time);
size = ntohl(hdr->ih_size);
printf ("Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
printf ("Created: %s", ctime(&timestamp));
printf ("Image Type: "); print_type(hdr);
printf ("Data Size: %d Bytes = %.2f kB = %.2f MB\n",
size, (double)size / 1.024e3, (double)size / 1.048576e6 );
printf ("Load Address: 0x%08x\n", ntohl(hdr->ih_load));
printf ("Entry Point: 0x%08x\n", ntohl(hdr->ih_ep));
if (hdr->ih_type == IH_TYPE_MULTI || hdr->ih_type == IH_TYPE_SCRIPT) {
int i, ptrs;
uint32_t pos;
unsigned long *len_ptr = (unsigned long *) (
(unsigned long)hdr + sizeof(image_header_t)
);
/* determine number of images first (to calculate image offsets) */
for (i=0; len_ptr[i]; ++i) /* null pointer terminates list */
;
ptrs = i; /* null pointer terminates list */
pos = sizeof(image_header_t) + ptrs * sizeof(long);
printf ("Contents:\n");
for (i=0; len_ptr[i]; ++i) {
size = ntohl(len_ptr[i]);
printf (" Image %d: %8d Bytes = %4d kB = %d MB\n",
i, size, size>>10, size>>20);
if (hdr->ih_type == IH_TYPE_SCRIPT && i > 0) {
/*
* the user may need to know offsets
* if planning to do something with
* multiple files
*/
printf (" Offset = %08x\n", pos);
}
/* copy_file() will pad the first files to even word align */
size += 3;
size &= ~3;
pos += size;
}
}
}
static void
print_type (image_header_t *hdr)
{
printf ("%s %s %s (%s)\n",
put_arch (hdr->ih_arch),
put_os (hdr->ih_os ),
put_type (hdr->ih_type),
put_comp (hdr->ih_comp)
);
}
static char *put_arch (int arch)
{
return (put_table_entry(arch_name, "Unknown Architecture", arch));
}
static char *put_os (int os)
{
return (put_table_entry(os_name, "Unknown OS", os));
}
static char *put_type (int type)
{
return (put_table_entry(type_name, "Unknown Image", type));
}
static char *put_comp (int comp)
{
return (put_table_entry(comp_name, "Unknown Compression", comp));
}
static char *put_table_entry (table_entry_t *table, char *msg, int type)
{
for (; table->val>=0; ++table) {
if (table->val == type)
return (table->lname);
}
return (msg);
}
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->val>=0; ++t) {
if (t->sname && strcasecmp(t->sname, name)==0)
return (t->val);
}
fprintf (stderr, "\nInvalid %s Type - valid names are", msg);
for (t=table; t->val>=0; ++t) {
if (t->sname == NULL)
continue;
fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname);
first = 0;
}
fprintf (stderr, "\n");
return (-1);
}