blob: c70408c9ba02375ae959e20d438e4e65acfd75b0 [file] [log] [blame] [edit]
/*
* (C) Copyright 2008 Semihalf
*
* (C) Copyright 2000-2009
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include "mkimage.h"
#include <image.h>
#include <version.h>
static void copy_file(int, const char *, int);
static void usage(void);
/* image_type_params link list to maintain registered image type supports */
struct image_type_params *mkimage_tparams = NULL;
/* parameters initialized by core will be used by the image type code */
struct image_tool_params params = {
.os = IH_OS_LINUX,
.arch = IH_ARCH_PPC,
.type = IH_TYPE_KERNEL,
.comp = IH_COMP_GZIP,
.dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
.imagename = "",
.imagename2 = "",
};
/*
* mkimage_register -
*
* It is used to register respective image generation/list support to the
* mkimage core
*
* the input struct image_type_params is checked and appended to the link
* list, if the input structure is already registered, error
*/
void mkimage_register (struct image_type_params *tparams)
{
struct image_type_params **tp;
if (!tparams) {
fprintf (stderr, "%s: %s: Null input\n",
params.cmdname, __FUNCTION__);
exit (EXIT_FAILURE);
}
/* scan the linked list, check for registry and point the last one */
for (tp = &mkimage_tparams; *tp != NULL; tp = &(*tp)->next) {
if (!strcmp((*tp)->name, tparams->name)) {
fprintf (stderr, "%s: %s already registered\n",
params.cmdname, tparams->name);
return;
}
}
/* add input struct entry at the end of link list */
*tp = tparams;
/* mark input entry as last entry in the link list */
tparams->next = NULL;
debug ("Registered %s\n", tparams->name);
}
/*
* mkimage_get_type -
*
* It scans all registers image type supports
* checks the input type_id for each supported image type
*
* if successful,
* returns respective image_type_params pointer if success
* if input type_id is not supported by any of image_type_support
* returns NULL
*/
struct image_type_params *mkimage_get_type(int type)
{
struct image_type_params *curr;
for (curr = mkimage_tparams; curr != NULL; curr = curr->next) {
if (curr->check_image_type) {
if (!curr->check_image_type (type))
return curr;
}
}
return NULL;
}
/*
* mkimage_verify_print_header -
*
* It scans mkimage_tparams link list,
* verifies image_header for each supported image type
* if verification is successful, prints respective header
*
* returns negative if input image format does not match with any of
* supported image types
*/
int mkimage_verify_print_header (void *ptr, struct stat *sbuf)
{
int retval = -1;
struct image_type_params *curr;
for (curr = mkimage_tparams; curr != NULL; curr = curr->next ) {
if (curr->verify_header) {
retval = curr->verify_header (
(unsigned char *)ptr, sbuf->st_size,
&params);
if (retval == 0) {
/*
* Print the image information
* if verify is successful
*/
if (curr->print_header)
curr->print_header (ptr);
else {
fprintf (stderr,
"%s: print_header undefined for %s\n",
params.cmdname, curr->name);
}
break;
}
}
}
return retval;
}
int
main (int argc, char **argv)
{
int ifd = -1;
struct stat sbuf;
char *ptr;
int retval = 0;
struct image_type_params *tparams = NULL;
int pad_len = 0;
/* Init all image generation/list support */
register_image_tool(mkimage_register);
params.cmdname = *argv;
params.addr = params.ep = 0;
while (--argc > 0 && **++argv == '-') {
while (*++*argv) {
switch (**argv) {
case 'l':
params.lflag = 1;
break;
case 'A':
if ((--argc <= 0) ||
(params.arch =
genimg_get_arch_id (*++argv)) < 0)
usage ();
goto NXTARG;
case 'c':
if (--argc <= 0)
usage();
params.comment = *++argv;
goto NXTARG;
case 'C':
if ((--argc <= 0) ||
(params.comp =
genimg_get_comp_id (*++argv)) < 0)
usage ();
goto NXTARG;
case 'D':
if (--argc <= 0)
usage ();
params.dtc = *++argv;
goto NXTARG;
case 'O':
if ((--argc <= 0) ||
(params.os =
genimg_get_os_id (*++argv)) < 0)
usage ();
goto NXTARG;
case 'T':
if ((--argc <= 0) ||
(params.type =
genimg_get_type_id (*++argv)) < 0)
usage ();
goto NXTARG;
case 'a':
if (--argc <= 0)
usage ();
params.addr = strtoul (*++argv, &ptr, 16);
if (*ptr) {
fprintf (stderr,
"%s: invalid load address %s\n",
params.cmdname, *argv);
exit (EXIT_FAILURE);
}
goto NXTARG;
case 'd':
if (--argc <= 0)
usage ();
params.datafile = *++argv;
params.dflag = 1;
goto NXTARG;
case 'e':
if (--argc <= 0)
usage ();
params.ep = strtoul (*++argv, &ptr, 16);
if (*ptr) {
fprintf (stderr,
"%s: invalid entry point %s\n",
params.cmdname, *argv);
exit (EXIT_FAILURE);
}
params.eflag = 1;
goto NXTARG;
case 'f':
if (--argc <= 0)
usage ();
params.datafile = *++argv;
/* no break */
case 'F':
/*
* The flattened image tree (FIT) format
* requires a flattened device tree image type
*/
params.type = IH_TYPE_FLATDT;
params.fflag = 1;
goto NXTARG;
case 'k':
if (--argc <= 0)
usage();
params.keydir = *++argv;
goto NXTARG;
case 'K':
if (--argc <= 0)
usage();
params.keydest = *++argv;
goto NXTARG;
case 'n':
if (--argc <= 0)
usage ();
params.imagename = *++argv;
goto NXTARG;
case 'r':
params.require_keys = 1;
break;
case 'R':
if (--argc <= 0)
usage();
/*
* This entry is for the second configuration
* file, if only one is not enough.
*/
params.imagename2 = *++argv;
goto NXTARG;
case 's':
params.skipcpy = 1;
break;
case 'v':
params.vflag++;
break;
case 'V':
printf("mkimage version %s\n", PLAIN_VERSION);
exit(EXIT_SUCCESS);
case 'x':
params.xflag++;
break;
default:
usage ();
}
}
NXTARG: ;
}
if (argc != 1)
usage ();
/* set tparams as per input type_id */
tparams = mkimage_get_type(params.type);
if (tparams == NULL) {
fprintf (stderr, "%s: unsupported type %s\n",
params.cmdname, genimg_get_type_name(params.type));
exit (EXIT_FAILURE);
}
/*
* check the passed arguments parameters meets the requirements
* as per image type to be generated/listed
*/
if (tparams->check_params)
if (tparams->check_params (&params))
usage ();
if (!params.eflag) {
params.ep = params.addr;
/* If XIP, entry point must be after the U-Boot header */
if (params.xflag)
params.ep += tparams->header_size;
}
params.imagefile = *argv;
if (params.fflag){
if (tparams->fflag_handle)
/*
* in some cases, some additional processing needs
* to be done if fflag is defined
*
* For ex. fit_handle_file for Fit file support
*/
retval = tparams->fflag_handle(&params);
if (retval != EXIT_SUCCESS)
exit (retval);
}
if (params.lflag || params.fflag) {
ifd = open (params.imagefile, O_RDONLY|O_BINARY);
} else {
ifd = open (params.imagefile,
O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
}
if (ifd < 0) {
fprintf (stderr, "%s: Can't open %s: %s\n",
params.cmdname, params.imagefile,
strerror(errno));
exit (EXIT_FAILURE);
}
if (params.lflag || params.fflag) {
/*
* list header information of existing image
*/
if (fstat(ifd, &sbuf) < 0) {
fprintf (stderr, "%s: Can't stat %s: %s\n",
params.cmdname, params.imagefile,
strerror(errno));
exit (EXIT_FAILURE);
}
if ((unsigned)sbuf.st_size < tparams->header_size) {
fprintf (stderr,
"%s: Bad size: \"%s\" is not valid image\n",
params.cmdname, params.imagefile);
exit (EXIT_FAILURE);
}
ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
if (ptr == MAP_FAILED) {
fprintf (stderr, "%s: Can't read %s: %s\n",
params.cmdname, params.imagefile,
strerror(errno));
exit (EXIT_FAILURE);
}
/*
* scan through mkimage registry for all supported image types
* and verify the input image file header for match
* Print the image information for matched image type
* Returns the error code if not matched
*/
retval = mkimage_verify_print_header (ptr, &sbuf);
(void) munmap((void *)ptr, sbuf.st_size);
(void) close (ifd);
exit (retval);
}
/*
* In case there an header with a variable
* length will be added, the corresponding
* function is called. This is responsible to
* allocate memory for the header itself.
*/
if (tparams->vrec_header)
pad_len = tparams->vrec_header(&params, tparams);
else
memset(tparams->hdr, 0, tparams->header_size);
if (write(ifd, tparams->hdr, tparams->header_size)
!= tparams->header_size) {
fprintf (stderr, "%s: Write error on %s: %s\n",
params.cmdname, params.imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
if (!params.skipcpy) {
if (params.type == IH_TYPE_MULTI ||
params.type == IH_TYPE_SCRIPT) {
char *file = params.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",
params.cmdname, file, strerror(errno));
exit (EXIT_FAILURE);
}
size = cpu_to_uimage (sbuf.st_size);
} else {
size = 0;
}
if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
fprintf (stderr, "%s: Write error on %s: %s\n",
params.cmdname, params.imagefile,
strerror(errno));
exit (EXIT_FAILURE);
}
if (!file) {
break;
}
if (sep) {
*sep = ':';
file = sep + 1;
} else {
file = NULL;
}
}
file = params.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 if (params.type == IH_TYPE_PBLIMAGE) {
/* PBL has special Image format, implements its' own */
pbl_load_uboot(ifd, &params);
} else {
copy_file(ifd, params.datafile, pad_len);
}
}
/* We're a bit of paranoid */
#if defined(_POSIX_SYNCHRONIZED_IO) && \
!defined(__sun__) && \
!defined(__FreeBSD__) && \
!defined(__OpenBSD__) && \
!defined(__APPLE__)
(void) fdatasync (ifd);
#else
(void) fsync (ifd);
#endif
if (fstat(ifd, &sbuf) < 0) {
fprintf (stderr, "%s: Can't stat %s: %s\n",
params.cmdname, params.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",
params.cmdname, params.imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
/* Setup the image header as per input image type*/
if (tparams->set_header)
tparams->set_header (ptr, &sbuf, ifd, &params);
else {
fprintf (stderr, "%s: Can't set header for %s: %s\n",
params.cmdname, tparams->name, strerror(errno));
exit (EXIT_FAILURE);
}
/* Print the image information by processing image header */
if (tparams->print_header)
tparams->print_header (ptr);
else {
fprintf (stderr, "%s: Can't print header for %s: %s\n",
params.cmdname, tparams->name, strerror(errno));
exit (EXIT_FAILURE);
}
(void) munmap((void *)ptr, sbuf.st_size);
/* We're a bit of paranoid */
#if defined(_POSIX_SYNCHRONIZED_IO) && \
!defined(__sun__) && \
!defined(__FreeBSD__) && \
!defined(__OpenBSD__) && \
!defined(__APPLE__)
(void) fdatasync (ifd);
#else
(void) fsync (ifd);
#endif
if (close(ifd)) {
fprintf (stderr, "%s: Write error on %s: %s\n",
params.cmdname, params.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;
uint8_t zeros[4096];
int offset = 0;
int size;
struct image_type_params *tparams = mkimage_get_type (params.type);
if (pad >= sizeof(zeros)) {
fprintf(stderr, "%s: Can't pad to %d\n",
params.cmdname, pad);
exit(EXIT_FAILURE);
}
memset(zeros, 0, sizeof(zeros));
if (params.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",
params.cmdname, datafile, strerror(errno));
exit (EXIT_FAILURE);
}
if (fstat(dfd, &sbuf) < 0) {
fprintf (stderr, "%s: Can't stat %s: %s\n",
params.cmdname, datafile, strerror(errno));
exit (EXIT_FAILURE);
}
ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
if (ptr == MAP_FAILED) {
fprintf (stderr, "%s: Can't read %s: %s\n",
params.cmdname, datafile, strerror(errno));
exit (EXIT_FAILURE);
}
if (params.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 < tparams->header_size) {
fprintf (stderr,
"%s: Bad size: \"%s\" is too small for XIP\n",
params.cmdname, datafile);
exit (EXIT_FAILURE);
}
for (p = ptr; p < ptr + tparams->header_size; p++) {
if ( *p != 0xff ) {
fprintf (stderr,
"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
params.cmdname, datafile);
exit (EXIT_FAILURE);
}
}
offset = tparams->header_size;
}
size = sbuf.st_size - offset;
if (write(ifd, ptr + offset, size) != size) {
fprintf (stderr, "%s: Write error on %s: %s\n",
params.cmdname, params.imagefile, strerror(errno));
exit (EXIT_FAILURE);
}
tail = size % 4;
if ((pad == 1) && (tail != 0)) {
if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
fprintf (stderr, "%s: Write error on %s: %s\n",
params.cmdname, params.imagefile,
strerror(errno));
exit (EXIT_FAILURE);
}
} else if (pad > 1) {
if (write(ifd, (char *)&zeros, pad) != pad) {
fprintf(stderr, "%s: Write error on %s: %s\n",
params.cmdname, params.imagefile,
strerror(errno));
exit(EXIT_FAILURE);
}
}
(void) munmap((void *)ptr, sbuf.st_size);
(void) close (dfd);
}
static void usage(void)
{
fprintf (stderr, "Usage: %s -l image\n"
" -l ==> list image header information\n",
params.cmdname);
fprintf (stderr, " %s [-x] -A arch -O os -T type -C comp "
"-a addr -e ep -n name -d data_file[:data_file...] image\n"
" -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",
params.cmdname);
fprintf(stderr, " %s [-D dtc_options] [-f fit-image.its|-F] fit-image\n",
params.cmdname);
fprintf(stderr, " -D => set options for device tree compiler\n"
" -f => input filename for FIT source\n");
#ifdef CONFIG_FIT_SIGNATURE
fprintf(stderr, "Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>] [-r]\n"
" -k => set directory containing private keys\n"
" -K => write public keys to this .dtb file\n"
" -c => add comment in signature node\n"
" -F => re-sign existing FIT image\n"
" -r => mark keys used as 'required' in dtb\n");
#else
fprintf(stderr, "Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");
#endif
fprintf (stderr, " %s -V ==> print version information and exit\n",
params.cmdname);
exit (EXIT_FAILURE);
}