[people/ms/u-boot.git] / tools / mkimage.c

/*
 * (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 "mkimage.h"
#include <image.h>

extern int errno;

#ifndef MAP_FAILED
#define MAP_FAILED (void *)(-1)
#endif

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	void		image_verify_header (char *, int);
static	void		fit_handle_file (void);

char	*datafile;
char	*imagefile;
char	*cmdname;

int dflag    = 0;
int eflag    = 0;
int fflag    = 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;
char *opt_dtc = MKIMAGE_DEFAULT_DTC_OPTIONS;

image_header_t header;
image_header_t *hdr = &header;

int
main (int argc, char **argv)
{
	int ifd = -1;
	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 = genimg_get_arch_id (*++argv)) < 0)
					usage ();
				goto NXTARG;
			case 'C':
				if ((--argc <= 0) ||
				    (opt_comp = genimg_get_comp_id (*++argv)) < 0)
					usage ();
				goto NXTARG;
			case 'D':
				if (--argc <= 0)
					usage ();
				opt_dtc = *++argv;
				goto NXTARG;

			case 'O':
				if ((--argc <= 0) ||
				    (opt_os = genimg_get_os_id (*++argv)) < 0)
					usage ();
				goto NXTARG;
			case 'T':
				if ((--argc <= 0) ||
				    (opt_type = genimg_get_type_id (*++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 'f':
				if (--argc <= 0)
					usage ();
				datafile = *++argv;
				fflag = 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) ||
		(dflag && (fflag || lflag)) ||
		(fflag && (dflag || lflag)) ||
		(lflag && (dflag || fflag)))
		usage();

	if (!eflag) {
		ep = addr;
		/* If XIP, entry point must be after the U-Boot header */
		if (xflag)
			ep += image_get_header_size ();
	}

	/*
	 * 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 + image_get_header_size ()) {
			fprintf (stderr,
				"%s: For XIP, the entry point must be the load addr + %lu\n",
				cmdname,
				(unsigned long)image_get_header_size ());
			exit (EXIT_FAILURE);
		}
	}

	imagefile = *argv;

	if (!fflag){
		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) {
		/*
		 * 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 < image_get_header_size ()) {
			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 (ptr == MAP_FAILED) {
			fprintf (stderr, "%s: Can't read %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}

		if (fdt_check_header (ptr)) {
			/* old-style image */
			image_verify_header ((char *)ptr, sbuf.st_size);
			image_print_contents ((image_header_t *)ptr);
		} else {
			/* FIT image */
			fit_print_contents (ptr);
		}

		(void) munmap((void *)ptr, sbuf.st_size);
		(void) close (ifd);

		exit (EXIT_SUCCESS);
	} else if (fflag) {
		/* Flattened Image Tree (FIT) format  handling */
		debug ("FIT format handling\n");
		fit_handle_file ();
		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 = 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",
					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__) && !defined(__APPLE__)
	(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,
			  (const 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, (const 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__) && !defined(__APPLE__)
	(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 = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
	if (ptr == 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",
		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",
		cmdname);
	fprintf (stderr, "       %s [-D dtc_options] -f fit-image.its fit-image\n",
		cmdname);

	exit (EXIT_FAILURE);
}

static void
image_verify_header (char *ptr, int image_size)
{
	int len;
	char *data;
	uint32_t checksum;
	image_header_t header;
	image_header_t *hdr = &header;

	/*
	 * 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,
			"%s: ERROR: \"%s\" has bad header checksum!\n",
			cmdname, imagefile);
		exit (EXIT_FAILURE);
	}

	data = ptr + sizeof(image_header_t);
	len  = image_size - sizeof(image_header_t) ;

	if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
		fprintf (stderr,
			"%s: ERROR: \"%s\" has corrupted data!\n",
			cmdname, imagefile);
		exit (EXIT_FAILURE);
	}
}

/**
 * fit_handle_file - main FIT file processing function
 *
 * fit_handle_file() runs dtc to convert .its to .itb, includes
 * binary data, updates timestamp property and calculates hashes.
 *
 * datafile  - .its file
 * imagefile - .itb file
 *
 * returns:
 *     only on success, otherwise calls exit (EXIT_FAILURE);
 */
static void fit_handle_file (void)
{
	char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
	char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
	int tfd;
	struct stat sbuf;
	unsigned char *ptr;

	/* call dtc to include binary properties into the tmp file */
	if (strlen (imagefile) + strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 >
		sizeof (tmpfile)) {
		fprintf (stderr, "%s: Image file name (%s) too long, "
				"can't create tmpfile",
				imagefile, cmdname);
		exit (EXIT_FAILURE);
	}
	sprintf (tmpfile, "%s%s", imagefile, MKIMAGE_TMPFILE_SUFFIX);

	/* dtc -I dts -O -p 200 datafile > tmpfile */
	sprintf (cmd, "%s %s %s > %s",
			MKIMAGE_DTC, opt_dtc, datafile, tmpfile);
	debug ("Trying to execute \"%s\"\n", cmd);
	if (system (cmd) == -1) {
		fprintf (stderr, "%s: system(%s) failed: %s\n",
				cmdname, cmd, strerror(errno));
		unlink (tmpfile);
		exit (EXIT_FAILURE);
	}

	/* load FIT blob into memory */
	tfd = open (tmpfile, O_RDWR|O_BINARY);

	if (tfd < 0) {
		fprintf (stderr, "%s: Can't open %s: %s\n",
				cmdname, tmpfile, strerror(errno));
		unlink (tmpfile);
		exit (EXIT_FAILURE);
	}

	if (fstat (tfd, &sbuf) < 0) {
		fprintf (stderr, "%s: Can't stat %s: %s\n",
				cmdname, tmpfile, strerror(errno));
		unlink (tmpfile);
		exit (EXIT_FAILURE);
	}

	ptr = mmap (0, sbuf.st_size, PROT_READ|PROT_WRITE, MAP_SHARED, tfd, 0);
	if (ptr == MAP_FAILED) {
		fprintf (stderr, "%s: Can't read %s: %s\n",
				cmdname, tmpfile, strerror(errno));
		unlink (tmpfile);
		exit (EXIT_FAILURE);
	}

	/* check if ptr has a valid blob */
	if (fdt_check_header (ptr)) {
		fprintf (stderr, "%s: Invalid FIT blob\n", cmdname);
		unlink (tmpfile);
		exit (EXIT_FAILURE);
	}

	/* set hashes for images in the blob */
	if (fit_set_hashes (ptr)) {
		fprintf (stderr, "%s Can't add hashes to FIT blob", cmdname);
		unlink (tmpfile);
		exit (EXIT_FAILURE);
	}

	/* add a timestamp at offset 0 i.e., root  */
	if (fit_set_timestamp (ptr, 0, sbuf.st_mtime)) {
		fprintf (stderr, "%s: Can't add image timestamp\n", cmdname);
		unlink (tmpfile);
		exit (EXIT_FAILURE);
	}
	debug ("Added timestamp successfully\n");

	munmap ((void *)ptr, sbuf.st_size);
	close (tfd);

	if (rename (tmpfile, imagefile) == -1) {
		fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
				cmdname, tmpfile, imagefile, strerror (errno));
		unlink (tmpfile);
		unlink (imagefile);
		exit (EXIT_FAILURE);
	}
}
Commit	Line	Data
5b1d7137	1	/*
9d25438f BS	2	* (C) Copyright 2008 Semihalf
9d25438f BS	3	*
0c852a28	4	* (C) Copyright 2000-2004
5b1d7137 WD	5	* DENX Software Engineering
	6	* Wolfgang Denk, wd@denx.de
	7	* All rights reserved.
0c852a28 WD	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License as
	11	* published by the Free Software Foundation; either version 2 of
	12	* the License, or (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	22	* MA 02111-1307 USA
5b1d7137 WD	23	*/
5b1d7137 WD	24
b97a2a0a	25	#include "mkimage.h"
5b1d7137 WD	26	#include <image.h>
	27
	28	extern int errno;
	29
	30	#ifndef MAP_FAILED
fa956fde	31	#define MAP_FAILED (void *)(-1)
5b1d7137 WD	32	#endif
5b1d7137 WD	33
570abb0a MB	34	extern unsigned long crc32 (unsigned long crc, const char *buf, unsigned int len);
	35	static void copy_file (int, const char *, int);
	36	static void usage (void);
9d25438f BS	37	static void image_verify_header (char *, int);
9d25438f BS	38	static void fit_handle_file (void);
5b1d7137 WD	39
	40	char *datafile;
	41	char *imagefile;
570abb0a	42	char *cmdname;
5b1d7137 WD	43
	44	int dflag = 0;
	45	int eflag = 0;
9d25438f	46	int fflag = 0;
5b1d7137 WD	47	int lflag = 0;
	48	int vflag = 0;
	49	int xflag = 0;
	50	int opt_os = IH_OS_LINUX;
b97a2a0a	51	int opt_arch = IH_ARCH_PPC;
5b1d7137 WD	52	int opt_type = IH_TYPE_KERNEL;
5b1d7137 WD	53	int opt_comp = IH_COMP_GZIP;
9d25438f	54	char *opt_dtc = MKIMAGE_DEFAULT_DTC_OPTIONS;
5b1d7137 WD	55
	56	image_header_t header;
	57	image_header_t *hdr = &header;
	58
	59	int
	60	main (int argc, char **argv)
	61	{
9d25438f	62	int ifd = -1;
5b1d7137 WD	63	uint32_t checksum;
	64	uint32_t addr;
	65	uint32_t ep;
	66	struct stat sbuf;
	67	unsigned char *ptr;
	68	char *name = "";
	69
	70	cmdname = *argv;
	71
	72	addr = ep = 0;
	73
	74	while (--argc > 0 && **++argv == '-') {
	75	while (++argv) {
	76	switch (**argv) {
	77	case 'l':
	78	lflag = 1;
	79	break;
	80	case 'A':
	81	if ((--argc <= 0) \|\|
570abb0a	82	(opt_arch = genimg_get_arch_id (*++argv)) < 0)
5b1d7137 WD	83	usage ();
	84	goto NXTARG;
	85	case 'C':
	86	if ((--argc <= 0) \|\|
570abb0a	87	(opt_comp = genimg_get_comp_id (*++argv)) < 0)
5b1d7137 WD	88	usage ();
5b1d7137 WD	89	goto NXTARG;
9d25438f BS	90	case 'D':
	91	if (--argc <= 0)
	92	usage ();
	93	opt_dtc = *++argv;
	94	goto NXTARG;
	95
5b1d7137 WD	96	case 'O':
5b1d7137 WD	97	if ((--argc <= 0) \|\|
570abb0a	98	(opt_os = genimg_get_os_id (*++argv)) < 0)
5b1d7137 WD	99	usage ();
	100	goto NXTARG;
	101	case 'T':
	102	if ((--argc <= 0) \|\|
570abb0a	103	(opt_type = genimg_get_type_id (*++argv)) < 0)
5b1d7137 WD	104	usage ();
	105	goto NXTARG;
	106
	107	case 'a':
	108	if (--argc <= 0)
	109	usage ();
	110	addr = strtoul (++argv, (char *)&ptr, 16);
	111	if (*ptr) {
	112	fprintf (stderr,
	113	"%s: invalid load address %s\n",
	114	cmdname, *argv);
	115	exit (EXIT_FAILURE);
	116	}
	117	goto NXTARG;
	118	case 'd':
	119	if (--argc <= 0)
	120	usage ();
	121	datafile = *++argv;
	122	dflag = 1;
	123	goto NXTARG;
	124	case 'e':
	125	if (--argc <= 0)
	126	usage ();
	127	ep = strtoul (++argv, (char *)&ptr, 16);
	128	if (*ptr) {
	129	fprintf (stderr,
	130	"%s: invalid entry point %s\n",
	131	cmdname, *argv);
	132	exit (EXIT_FAILURE);
	133	}
	134	eflag = 1;
	135	goto NXTARG;
9d25438f BS	136	case 'f':
	137	if (--argc <= 0)
	138	usage ();
	139	datafile = *++argv;
	140	fflag = 1;
	141	goto NXTARG;
5b1d7137 WD	142	case 'n':
	143	if (--argc <= 0)
	144	usage ();
	145	name = *++argv;
	146	goto NXTARG;
	147	case 'v':
	148	vflag++;
	149	break;
	150	case 'x':
	151	xflag++;
	152	break;
	153	default:
	154	usage ();
	155	}
	156	}
	157	NXTARG: ;
	158	}
	159
9d25438f BS	160	if ((argc != 1) \|\|
	161	(dflag && (fflag \|\| lflag)) \|\|
	162	(fflag && (dflag \|\| lflag)) \|\|
	163	(lflag && (dflag \|\| fflag)))
5b1d7137 WD	164	usage();
	165
	166	if (!eflag) {
	167	ep = addr;
	168	/* If XIP, entry point must be after the U-Boot header */
	169	if (xflag)
b97a2a0a	170	ep += image_get_header_size ();
5b1d7137 WD	171	}
	172
	173	/*
	174	* If XIP, ensure the entry point is equal to the load address plus
	175	* the size of the U-Boot header.
	176	*/
	177	if (xflag) {
b97a2a0a	178	if (ep != addr + image_get_header_size ()) {
3577d3a3 WD	179	fprintf (stderr,
3577d3a3 WD	180	"%s: For XIP, the entry point must be the load addr + %lu\n",
a6c7ad2f	181	cmdname,
b97a2a0a	182	(unsigned long)image_get_header_size ());
5b1d7137 WD	183	exit (EXIT_FAILURE);
	184	}
	185	}
	186
	187	imagefile = *argv;
	188
9d25438f BS	189	if (!fflag){
	190	if (lflag) {
	191	ifd = open (imagefile, O_RDONLY\|O_BINARY);
	192	} else {
	193	ifd = open (imagefile,
	194	O_RDWR\|O_CREAT\|O_TRUNC\|O_BINARY, 0666);
	195	}
5b1d7137	196
9d25438f BS	197	if (ifd < 0) {
	198	fprintf (stderr, "%s: Can't open %s: %s\n",
	199	cmdname, imagefile, strerror(errno));
	200	exit (EXIT_FAILURE);
	201	}
5b1d7137 WD	202	}
	203
	204	if (lflag) {
5b1d7137 WD	205	/*
	206	* list header information of existing image
	207	*/
	208	if (fstat(ifd, &sbuf) < 0) {
	209	fprintf (stderr, "%s: Can't stat %s: %s\n",
	210	cmdname, imagefile, strerror(errno));
	211	exit (EXIT_FAILURE);
	212	}
	213
b97a2a0a	214	if ((unsigned)sbuf.st_size < image_get_header_size ()) {
5b1d7137 WD	215	fprintf (stderr,
	216	"%s: Bad size: \"%s\" is no valid image\n",
	217	cmdname, imagefile);
	218	exit (EXIT_FAILURE);
	219	}
	220
fa956fde MF	221	ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
fa956fde MF	222	if (ptr == MAP_FAILED) {
5b1d7137 WD	223	fprintf (stderr, "%s: Can't read %s: %s\n",
	224	cmdname, imagefile, strerror(errno));
	225	exit (EXIT_FAILURE);
	226	}
	227
9d25438f BS	228	if (fdt_check_header (ptr)) {
	229	/* old-style image */
	230	image_verify_header ((char *)ptr, sbuf.st_size);
edbed247	231	image_print_contents ((image_header_t *)ptr);
9d25438f BS	232	} else {
9d25438f BS	233	/* FIT image */
edbed247	234	fit_print_contents (ptr);
5b1d7137 WD	235	}
5b1d7137 WD	236
5b1d7137 WD	237	(void) munmap((void *)ptr, sbuf.st_size);
	238	(void) close (ifd);
	239
9d25438f BS	240	exit (EXIT_SUCCESS);
	241	} else if (fflag) {
	242	/* Flattened Image Tree (FIT) format handling */
	243	debug ("FIT format handling\n");
	244	fit_handle_file ();
5b1d7137 WD	245	exit (EXIT_SUCCESS);
	246	}
	247
	248	/*
	249	* Must be -w then:
	250	*
	251	* write dummy header, to be fixed later
	252	*/
b97a2a0a	253	memset (hdr, 0, image_get_header_size ());
5b1d7137	254
b97a2a0a	255	if (write(ifd, hdr, image_get_header_size ()) != image_get_header_size ()) {
5b1d7137 WD	256	fprintf (stderr, "%s: Write error on %s: %s\n",
	257	cmdname, imagefile, strerror(errno));
	258	exit (EXIT_FAILURE);
	259	}
	260
	261	if (opt_type == IH_TYPE_MULTI \|\| opt_type == IH_TYPE_SCRIPT) {
	262	char *file = datafile;
3bb66806	263	uint32_t size;
5b1d7137 WD	264
	265	for (;;) {
	266	char *sep = NULL;
	267
	268	if (file) {
	269	if ((sep = strchr(file, ':')) != NULL) {
	270	*sep = '\0';
	271	}
	272
	273	if (stat (file, &sbuf) < 0) {
	274	fprintf (stderr, "%s: Can't stat %s: %s\n",
	275	cmdname, file, strerror(errno));
	276	exit (EXIT_FAILURE);
	277	}
9a4daad0	278	size = cpu_to_uimage (sbuf.st_size);
5b1d7137 WD	279	} else {
	280	size = 0;
	281	}
	282
	283	if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
	284	fprintf (stderr, "%s: Write error on %s: %s\n",
	285	cmdname, imagefile, strerror(errno));
	286	exit (EXIT_FAILURE);
	287	}
	288
	289	if (!file) {
	290	break;
	291	}
	292
	293	if (sep) {
	294	*sep = ':';
	295	file = sep + 1;
	296	} else {
	297	file = NULL;
	298	}
	299	}
	300
	301	file = datafile;
	302
	303	for (;;) {
	304	char *sep = strchr(file, ':');
	305	if (sep) {
	306	*sep = '\0';
	307	copy_file (ifd, file, 1);
	308	*sep++ = ':';
	309	file = sep;
	310	} else {
	311	copy_file (ifd, file, 0);
	312	break;
	313	}
	314	}
	315	} else {
	316	copy_file (ifd, datafile, 0);
	317	}
	318
	319	/* We're a bit of paranoid */
5dfaa50e	320	#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) && !defined(__APPLE__)
5b1d7137 WD	321	(void) fdatasync (ifd);
	322	#else
	323	(void) fsync (ifd);
	324	#endif
	325
	326	if (fstat(ifd, &sbuf) < 0) {
	327	fprintf (stderr, "%s: Can't stat %s: %s\n",
	328	cmdname, imagefile, strerror(errno));
	329	exit (EXIT_FAILURE);
	330	}
	331
fa956fde MF	332	ptr = mmap(0, sbuf.st_size, PROT_READ\|PROT_WRITE, MAP_SHARED, ifd, 0);
fa956fde MF	333	if (ptr == MAP_FAILED) {
5b1d7137 WD	334	fprintf (stderr, "%s: Can't map %s: %s\n",
	335	cmdname, imagefile, strerror(errno));
	336	exit (EXIT_FAILURE);
	337	}
	338
	339	hdr = (image_header_t *)ptr;
	340
	341	checksum = crc32 (0,
b97a2a0a MB	342	(const char *)(ptr + image_get_header_size ()),
b97a2a0a MB	343	sbuf.st_size - image_get_header_size ()
5b1d7137 WD	344	);
	345
	346	/* Build new header */
b97a2a0a MB	347	image_set_magic (hdr, IH_MAGIC);
	348	image_set_time (hdr, sbuf.st_mtime);
	349	image_set_size (hdr, sbuf.st_size - image_get_header_size ());
	350	image_set_load (hdr, addr);
	351	image_set_ep (hdr, ep);
	352	image_set_dcrc (hdr, checksum);
	353	image_set_os (hdr, opt_os);
	354	image_set_arch (hdr, opt_arch);
	355	image_set_type (hdr, opt_type);
	356	image_set_comp (hdr, opt_comp);
5b1d7137	357
b97a2a0a	358	image_set_name (hdr, name);
5b1d7137	359
b97a2a0a	360	checksum = crc32 (0, (const char *)hdr, image_get_header_size ());
5b1d7137	361
b97a2a0a	362	image_set_hcrc (hdr, checksum);
5b1d7137	363
edbed247	364	image_print_contents (hdr);
5b1d7137 WD	365
	366	(void) munmap((void *)ptr, sbuf.st_size);
	367
	368	/* We're a bit of paranoid */
5dfaa50e	369	#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) && !defined(__APPLE__)
5b1d7137 WD	370	(void) fdatasync (ifd);
	371	#else
	372	(void) fsync (ifd);
	373	#endif
	374
	375	if (close(ifd)) {
	376	fprintf (stderr, "%s: Write error on %s: %s\n",
	377	cmdname, imagefile, strerror(errno));
	378	exit (EXIT_FAILURE);
	379	}
	380
	381	exit (EXIT_SUCCESS);
	382	}
	383
	384	static void
	385	copy_file (int ifd, const char *datafile, int pad)
	386	{
	387	int dfd;
	388	struct stat sbuf;
	389	unsigned char *ptr;
	390	int tail;
	391	int zero = 0;
	392	int offset = 0;
	393	int size;
	394
	395	if (vflag) {
	396	fprintf (stderr, "Adding Image %s\n", datafile);
	397	}
	398
ef1464cc	399	if ((dfd = open(datafile, O_RDONLY\|O_BINARY)) < 0) {
5b1d7137 WD	400	fprintf (stderr, "%s: Can't open %s: %s\n",
	401	cmdname, datafile, strerror(errno));
	402	exit (EXIT_FAILURE);
	403	}
	404
	405	if (fstat(dfd, &sbuf) < 0) {
	406	fprintf (stderr, "%s: Can't stat %s: %s\n",
	407	cmdname, datafile, strerror(errno));
	408	exit (EXIT_FAILURE);
	409	}
	410
fa956fde MF	411	ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
fa956fde MF	412	if (ptr == MAP_FAILED) {
5b1d7137 WD	413	fprintf (stderr, "%s: Can't read %s: %s\n",
	414	cmdname, datafile, strerror(errno));
	415	exit (EXIT_FAILURE);
	416	}
	417
	418	if (xflag) {
	419	unsigned char *p = NULL;
	420	/*
	421	* XIP: do not append the image_header_t at the
	422	* beginning of the file, but consume the space
	423	* reserved for it.
	424	*/
	425
b97a2a0a	426	if ((unsigned)sbuf.st_size < image_get_header_size ()) {
5b1d7137 WD	427	fprintf (stderr,
	428	"%s: Bad size: \"%s\" is too small for XIP\n",
	429	cmdname, datafile);
	430	exit (EXIT_FAILURE);
	431	}
	432
b97a2a0a	433	for (p = ptr; p < ptr + image_get_header_size (); p++) {
5b1d7137 WD	434	if ( *p != 0xff ) {
	435	fprintf (stderr,
	436	"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
	437	cmdname, datafile);
	438	exit (EXIT_FAILURE);
	439	}
	440	}
	441
b97a2a0a	442	offset = image_get_header_size ();
5b1d7137 WD	443	}
	444
	445	size = sbuf.st_size - offset;
	446	if (write(ifd, ptr + offset, size) != size) {
	447	fprintf (stderr, "%s: Write error on %s: %s\n",
	448	cmdname, imagefile, strerror(errno));
	449	exit (EXIT_FAILURE);
	450	}
	451
	452	if (pad && ((tail = size % 4) != 0)) {
	453
	454	if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
	455	fprintf (stderr, "%s: Write error on %s: %s\n",
	456	cmdname, imagefile, strerror(errno));
	457	exit (EXIT_FAILURE);
	458	}
	459	}
	460
	461	(void) munmap((void *)ptr, sbuf.st_size);
	462	(void) close (dfd);
	463	}
	464
	465	void
	466	usage ()
	467	{
	468	fprintf (stderr, "Usage: %s -l image\n"
9d25438f BS	469	" -l ==> list image header information\n",
	470	cmdname);
	471	fprintf (stderr, " %s [-x] -A arch -O os -T type -C comp "
	472	"-a addr -e ep -n name -d data_file[:data_file...] image\n"
	473	" -A ==> set architecture to 'arch'\n"
5b1d7137 WD	474	" -O ==> set operating system to 'os'\n"
	475	" -T ==> set image type to 'type'\n"
	476	" -C ==> set compression type 'comp'\n"
	477	" -a ==> set load address to 'addr' (hex)\n"
	478	" -e ==> set entry point to 'ep' (hex)\n"
	479	" -n ==> set image name to 'name'\n"
	480	" -d ==> use image data from 'datafile'\n"
9d25438f BS	481	" -x ==> set XIP (execute in place)\n",
	482	cmdname);
	483	fprintf (stderr, " %s [-D dtc_options] -f fit-image.its fit-image\n",
	484	cmdname);
	485
5b1d7137 WD	486	exit (EXIT_FAILURE);
5b1d7137 WD	487	}
9d25438f BS	488
	489	static void
	490	image_verify_header (char *ptr, int image_size)
	491	{
	492	int len;
	493	char *data;
	494	uint32_t checksum;
	495	image_header_t header;
	496	image_header_t *hdr = &header;
	497
	498	/*
	499	* create copy of header so that we can blank out the
	500	* checksum field for checking - this can't be done
	501	* on the PROT_READ mapped data.
	502	*/
	503	memcpy (hdr, ptr, sizeof(image_header_t));
	504
	505	if (ntohl(hdr->ih_magic) != IH_MAGIC) {
	506	fprintf (stderr,
	507	"%s: Bad Magic Number: \"%s\" is no valid image\n",
	508	cmdname, imagefile);
	509	exit (EXIT_FAILURE);
	510	}
	511
	512	data = (char *)hdr;
	513	len = sizeof(image_header_t);
	514
	515	checksum = ntohl(hdr->ih_hcrc);
	516	hdr->ih_hcrc = htonl(0); /* clear for re-calculation */
	517
	518	if (crc32 (0, data, len) != checksum) {
	519	fprintf (stderr,
	520	"%s: ERROR: \"%s\" has bad header checksum!\n",
	521	cmdname, imagefile);
	522	exit (EXIT_FAILURE);
	523	}
	524
	525	data = ptr + sizeof(image_header_t);
	526	len = image_size - sizeof(image_header_t) ;
	527
	528	if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
	529	fprintf (stderr,
	530	"%s: ERROR: \"%s\" has corrupted data!\n",
	531	cmdname, imagefile);
	532	exit (EXIT_FAILURE);
	533	}
	534	}
	535
	536	/**
	537	* fit_handle_file - main FIT file processing function
	538	*
	539	* fit_handle_file() runs dtc to convert .its to .itb, includes
	540	* binary data, updates timestamp property and calculates hashes.
	541	*
	542	* datafile - .its file
	543	* imagefile - .itb file
	544	*
	545	* returns:
	546	* only on success, otherwise calls exit (EXIT_FAILURE);
	547	*/
	548	static void fit_handle_file (void)
	549	{
	550	char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
	551	char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
552	int tfd;
553	struct stat sbuf;
554	unsigned char *ptr;
555
556	/* call dtc to include binary properties into the tmp file */
557	if (strlen (imagefile) + strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 >
558	sizeof (tmpfile)) {
559	fprintf (stderr, "%s: Image file name (%s) too long, "
560	"can't create tmpfile",
561	imagefile, cmdname);
562	exit (EXIT_FAILURE);
563	}
564	sprintf (tmpfile, "%s%s", imagefile, MKIMAGE_TMPFILE_SUFFIX);
565
566	/* dtc -I dts -O -p 200 datafile > tmpfile */
567	sprintf (cmd, "%s %s %s > %s",
568	MKIMAGE_DTC, opt_dtc, datafile, tmpfile);
569	debug ("Trying to execute \"%s\"\n", cmd);
570	if (system (cmd) == -1) {
571	fprintf (stderr, "%s: system(%s) failed: %s\n",
572	cmdname, cmd, strerror(errno));
573	unlink (tmpfile);
574	exit (EXIT_FAILURE);
575	}
576
577	/* load FIT blob into memory */
578	tfd = open (tmpfile, O_RDWR\|O_BINARY);
579
580	if (tfd < 0) {
581	fprintf (stderr, "%s: Can't open %s: %s\n",
582	cmdname, tmpfile, strerror(errno));
583	unlink (tmpfile);
584	exit (EXIT_FAILURE);
585	}
586
587	if (fstat (tfd, &sbuf) < 0) {
588	fprintf (stderr, "%s: Can't stat %s: %s\n",
589	cmdname, tmpfile, strerror(errno));
590	unlink (tmpfile);
591	exit (EXIT_FAILURE);
592	}
593
fa956fde MF	594	ptr = mmap (0, sbuf.st_size, PROT_READ\|PROT_WRITE, MAP_SHARED, tfd, 0);
fa956fde MF	595	if (ptr == MAP_FAILED) {
9d25438f BS	596	fprintf (stderr, "%s: Can't read %s: %s\n",
	597	cmdname, tmpfile, strerror(errno));
	598	unlink (tmpfile);
	599	exit (EXIT_FAILURE);
	600	}
	601
	602	/* check if ptr has a valid blob */
	603	if (fdt_check_header (ptr)) {
	604	fprintf (stderr, "%s: Invalid FIT blob\n", cmdname);
	605	unlink (tmpfile);
	606	exit (EXIT_FAILURE);
	607	}
	608
	609	/* set hashes for images in the blob */
	610	if (fit_set_hashes (ptr)) {
	611	fprintf (stderr, "%s Can't add hashes to FIT blob", cmdname);
	612	unlink (tmpfile);
	613	exit (EXIT_FAILURE);
	614	}
	615
	616	/* add a timestamp at offset 0 i.e., root */
	617	if (fit_set_timestamp (ptr, 0, sbuf.st_mtime)) {
	618	fprintf (stderr, "%s: Can't add image timestamp\n", cmdname);
	619	unlink (tmpfile);
	620	exit (EXIT_FAILURE);
	621	}
	622	debug ("Added timestamp successfully\n");
	623
	624	munmap ((void *)ptr, sbuf.st_size);
	625	close (tfd);
	626
	627	if (rename (tmpfile, imagefile) == -1) {
	628	fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
	629	cmdname, tmpfile, imagefile, strerror (errno));
	630	unlink (tmpfile);
	631	unlink (imagefile);
	632	exit (EXIT_FAILURE);
	633	}
	634	}