X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=tools%2Fmkimage.c;h=967fe9a776a87c9e88a2f68a295a0a48d5da8d85;hb=dcf728a6afc3e5b6031c520f9393e860b732b2ea;hp=fea3e5bc6b3079e3d2a915829f04a83c832797fb;hpb=152a44c6cd0464416199de082a95074da18bbc12;p=karo-tx-uboot.git

diff --git a/tools/mkimage.c b/tools/mkimage.c
index fea3e5bc6b..967fe9a776 100644
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -1,4 +1,6 @@
 /*
+ * (C) Copyright 2008 Semihalf
+ *
  * (C) Copyright 2000-2004
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
@@ -20,154 +22,36 @@
  * MA 02111-1307 USA
  */
 
-#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__ */
-
-#ifndef	O_BINARY		/* should be define'd on __WIN32__ */
-#define O_BINARY	0
-#endif
-
+#include "mkimage.h"
 #include <image.h>
 
 extern int errno;
 
 #ifndef MAP_FAILED
-#define MAP_FAILED (-1)
+#define MAP_FAILED (void *)(-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_M68K,		"m68k",		"MC68000",	},
-    {	IH_CPU_MICROBLAZE,	"microblaze",	"MicroBlaze",	},
-    {	IH_CPU_MIPS,		"mips",		"MIPS",		},
-    {	IH_CPU_MIPS64,		"mips64",	"MIPS 64 Bit",	},
-    {	IH_CPU_NIOS,		"nios",		"NIOS",		},
-    {	IH_CPU_NIOS2,		"nios2",	"NIOS II",	},
-    {	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",	},
-    {	IH_CPU_BLACKFIN,	"blackfin",	"Blackfin",	},
-    {	-1,			"",		"",		},
-};
-
-table_entry_t os_name[] = {
-    {	IH_OS_INVALID,	NULL,		"Invalid OS",		},
-    {	IH_OS_4_4BSD,	"4_4bsd",	"4_4BSD",		},
-    {	IH_OS_ARTOS,	"artos",	"ARTOS",		},
-    {	IH_OS_DELL,	"dell",		"Dell",			},
-    {	IH_OS_ESIX,	"esix",		"Esix",			},
-    {	IH_OS_FREEBSD,	"freebsd",	"FreeBSD",		},
-    {	IH_OS_IRIX,	"irix",		"Irix",			},
-    {	IH_OS_LINUX,	"linux",	"Linux",		},
-    {	IH_OS_LYNXOS,	"lynxos",	"LynxOS",		},
-    {	IH_OS_NCR,	"ncr",		"NCR",			},
-    {	IH_OS_NETBSD,	"netbsd",	"NetBSD",		},
-    {	IH_OS_OPENBSD,	"openbsd",	"OpenBSD",		},
-    {	IH_OS_PSOS,	"psos",		"pSOS",			},
-    {	IH_OS_QNX,	"qnx",		"QNX",			},
-    {	IH_OS_RTEMS,	"rtems",	"RTEMS",		},
-    {	IH_OS_SCO,	"sco",		"SCO",			},
-    {	IH_OS_SOLARIS,	"solaris",	"Solaris",		},
-    {	IH_OS_SVR4,	"svr4",		"SVR4",			},
-    {	IH_OS_U_BOOT,	"u-boot",	"U-Boot",		},
-    {	IH_OS_VXWORKS,	"vxworks",	"VxWorks",		},
-    {	-1,		"",		"",			},
-};
-
-table_entry_t type_name[] = {
-    {	IH_TYPE_INVALID,    NULL,	  "Invalid Image",	},
-    {	IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image",	},
-    {	IH_TYPE_FIRMWARE,   "firmware",	  "Firmware",		},
-    {	IH_TYPE_KERNEL,	    "kernel",	  "Kernel Image",	},
-    {	IH_TYPE_MULTI,	    "multi",	  "Multi-File Image",	},
-    {	IH_TYPE_RAMDISK,    "ramdisk",	  "RAMDisk Image",	},
-    {	IH_TYPE_SCRIPT,     "script",	  "Script",		},
-    {	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
-    {	-1,		    "",		  "",			},
-};
-
-table_entry_t comp_name[] = {
-    {	IH_COMP_NONE,	"none",		"uncompressed",		},
-    {	IH_COMP_BZIP2,	"bzip2",	"bzip2 compressed",	},
-    {	IH_COMP_GZIP,	"gzip",		"gzip 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 *);
-
+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_CPU_PPC;
+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;
@@ -175,7 +59,7 @@ image_header_t *hdr = &header;
 int
 main (int argc, char **argv)
 {
-	int ifd;
+	int ifd = -1;
 	uint32_t checksum;
 	uint32_t addr;
 	uint32_t ep;
@@ -195,22 +79,28 @@ main (int argc, char **argv)
 				break;
 			case 'A':
 				if ((--argc <= 0) ||
-				    (opt_arch = get_arch(*++argv)) < 0)
+				    (opt_arch = genimg_get_arch_id (*++argv)) < 0)
 					usage ();
 				goto NXTARG;
 			case 'C':
 				if ((--argc <= 0) ||
-				    (opt_comp = get_comp(*++argv)) < 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 = get_os(*++argv)) < 0)
+				    (opt_os = genimg_get_os_id (*++argv)) < 0)
 					usage ();
 				goto NXTARG;
 			case 'T':
 				if ((--argc <= 0) ||
-				    (opt_type = get_type(*++argv)) < 0)
+				    (opt_type = genimg_get_type_id (*++argv)) < 0)
 					usage ();
 				goto NXTARG;
 
@@ -243,6 +133,12 @@ main (int argc, char **argv)
 				}
 				eflag = 1;
 				goto NXTARG;
+			case 'f':
+				if (--argc <= 0)
+					usage ();
+				datafile = *++argv;
+				fflag = 1;
+				goto NXTARG;
 			case 'n':
 				if (--argc <= 0)
 					usage ();
@@ -261,14 +157,17 @@ main (int argc, char **argv)
 NXTARG:		;
 	}
 
-	if ((argc != 1) || ((lflag ^ dflag) == 0))
+	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 += sizeof(image_header_t);
+			ep += image_get_header_size ();
 	}
 
 	/*
@@ -276,32 +175,33 @@ NXTARG:		;
 	 * the size of the U-Boot header.
 	 */
 	if (xflag) {
-		if (ep != addr + sizeof(image_header_t)) {
+		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)sizeof(image_header_t));
+				(unsigned long)image_get_header_size ());
 			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 (!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 (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
 		 */
@@ -311,64 +211,37 @@ NXTARG:		;
 			exit (EXIT_FAILURE);
 		}
 
-		if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
+		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 = (unsigned char *)mmap(0, sbuf.st_size,
-					    PROT_READ, MAP_SHARED, ifd, 0);
-		if ((caddr_t)ptr == (caddr_t)-1) {
+		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);
 		}
 
-		/*
-		 * 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);
+		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);
 		}
 
-		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,
-				"%s: ERROR: \"%s\" has corrupted data!\n",
-				cmdname, imagefile);
-			exit (EXIT_FAILURE);
-		}
-
-		/* 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);
+	} else if (fflag) {
+		/* Flattened Image Tree (FIT) format  handling */
+		debug ("FIT format handling\n");
+		fit_handle_file ();
 		exit (EXIT_SUCCESS);
 	}
 
@@ -377,9 +250,9 @@ NXTARG:		;
 	 *
 	 * write dummy header, to be fixed later
 	 */
-	memset (hdr, 0, sizeof(image_header_t));
+	memset (hdr, 0, image_get_header_size ());
 
-	if (write(ifd, hdr, sizeof(image_header_t)) != sizeof(image_header_t)) {
+	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);
@@ -402,7 +275,7 @@ NXTARG:		;
 						cmdname, file, strerror(errno));
 					exit (EXIT_FAILURE);
 				}
-				size = htonl(sbuf.st_size);
+				size = cpu_to_uimage (sbuf.st_size);
 			} else {
 				size = 0;
 			}
@@ -444,7 +317,7 @@ NXTARG:		;
 	}
 
 	/* We're a bit of paranoid */
-#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__)
+#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) && !defined(__APPLE__)
 	(void) fdatasync (ifd);
 #else
 	(void) fsync (ifd);
@@ -456,9 +329,8 @@ NXTARG:		;
 		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) {
+	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);
@@ -467,34 +339,34 @@ NXTARG:		;
 	hdr = (image_header_t *)ptr;
 
 	checksum = crc32 (0,
-			  (const char *)(ptr + sizeof(image_header_t)),
-			  sbuf.st_size - sizeof(image_header_t)
+			  (const char *)(ptr + image_get_header_size ()),
+			  sbuf.st_size - image_get_header_size ()
 			 );
 
 	/* 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;
+	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);
 
-	strncpy((char *)hdr->ih_name, name, IH_NMLEN);
+	image_set_name (hdr, name);
 
-	checksum = crc32(0,(const char *)hdr,sizeof(image_header_t));
+	checksum = crc32 (0, (const char *)hdr, image_get_header_size ());
 
-	hdr->ih_hcrc = htonl(checksum);
+	image_set_hcrc (hdr, checksum);
 
-	print_header (hdr);
+	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__)
+#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) && !defined(__APPLE__)
 	(void) fdatasync (ifd);
 #else
 	(void) fsync (ifd);
@@ -536,9 +408,8 @@ copy_file (int ifd, const char *datafile, int pad)
 		exit (EXIT_FAILURE);
 	}
 
-	ptr = (unsigned char *)mmap(0, sbuf.st_size,
-				    PROT_READ, MAP_SHARED, dfd, 0);
-	if (ptr == (unsigned char *)MAP_FAILED) {
+	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);
@@ -552,14 +423,14 @@ copy_file (int ifd, const char *datafile, int pad)
 		 * reserved for it.
 		 */
 
-		if ((unsigned)sbuf.st_size < sizeof(image_header_t)) {
+		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+sizeof(image_header_t); p++) {
+		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",
@@ -568,7 +439,7 @@ copy_file (int ifd, const char *datafile, int pad)
 			}
 		}
 
-		offset = sizeof(image_header_t);
+		offset = image_get_header_size ();
 	}
 
 	size = sbuf.st_size - offset;
@@ -595,11 +466,11 @@ 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"
+			 "          -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"
@@ -607,143 +478,157 @@ usage ()
 			 "          -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"
-		);
+			 "          -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
-print_header (image_header_t *hdr)
+image_verify_header (char *ptr, int image_size)
 {
-	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;
-		}
-	}
-}
+	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));
 
-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)
-	);
-}
+	if (ntohl(hdr->ih_magic) != IH_MAGIC) {
+		fprintf (stderr,
+			"%s: Bad Magic Number: \"%s\" is no valid image\n",
+			cmdname, imagefile);
+		exit (EXIT_FAILURE);
+	}
 
-static char *put_arch (int arch)
-{
-	return (put_table_entry(arch_name, "Unknown Architecture", arch));
-}
+	data = (char *)hdr;
+	len  = sizeof(image_header_t);
 
-static char *put_os (int os)
-{
-	return (put_table_entry(os_name, "Unknown OS", os));
-}
+	checksum = ntohl(hdr->ih_hcrc);
+	hdr->ih_hcrc = htonl(0);	/* clear for re-calculation */
 
-static char *put_type (int type)
-{
-	return (put_table_entry(type_name, "Unknown Image", type));
-}
+	if (crc32 (0, data, len) != checksum) {
+		fprintf (stderr,
+			"%s: ERROR: \"%s\" has bad header checksum!\n",
+			cmdname, imagefile);
+		exit (EXIT_FAILURE);
+	}
 
-static char *put_comp (int comp)
-{
-	return (put_table_entry(comp_name, "Unknown Compression", comp));
-}
+	data = ptr + sizeof(image_header_t);
+	len  = image_size - sizeof(image_header_t) ;
 
-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);
+	if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
+		fprintf (stderr,
+			"%s: ERROR: \"%s\" has corrupted data!\n",
+			cmdname, imagefile);
+		exit (EXIT_FAILURE);
 	}
-	return (msg);
 }
 
-static int get_arch(char *name)
+/**
+ * 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)
 {
-	return (get_table_entry(arch_name, "CPU", name));
-}
+	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);
+	}
 
-static int get_comp(char *name)
-{
-	return (get_table_entry(comp_name, "Compression", name));
-}
+	/* 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);
+	}
 
-static int get_os (char *name)
-{
-	return (get_table_entry(os_name, "OS", name));
-}
+	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);
+	}
 
-static int get_type(char *name)
-{
-	return (get_table_entry(type_name, "Image", name));
-}
+	/* 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);
+	}
 
-static int get_table_entry (table_entry_t *table, char *msg, char *name)
-{
-	table_entry_t *t;
-	int first = 1;
+	/* 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);
+	}
 
-	for (t=table; t->val>=0; ++t) {
-		if (t->sname && strcasecmp(t->sname, name)==0)
-			return (t->val);
+	/* 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);
 	}
-	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;
+	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);
 	}
-	fprintf (stderr, "\n");
-	return (-1);
 }