static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
				struct image_tool_params *params)
{
	uint32_t checksum;
	time_t time;

	image_header_t * hdr = (image_header_t *)ptr;

	checksum = crc32(0,
			(const unsigned char *)(ptr +
				sizeof(image_header_t)),
			sbuf->st_size - sizeof(image_header_t));

	time = imagetool_get_source_date(params, sbuf->st_mtime);

	/* Build new header */
	image_set_magic(hdr, IH_MAGIC);
	image_set_time(hdr, time);
	image_set_size(hdr, sbuf->st_size - sizeof(image_header_t));
	image_set_load(hdr, params->addr);
	image_set_ep(hdr, params->ep);
	image_set_dcrc(hdr, checksum);
	image_set_os(hdr, params->os);
	image_set_arch(hdr, params->arch);
	image_set_type(hdr, params->type);
	image_set_comp(hdr, params->comp);

	image_set_name(hdr, params->imagename);

	checksum = crc32(0, (const unsigned char *)hdr,
				sizeof(image_header_t));

	image_set_hcrc(hdr, checksum);
}
Beispiel #2
0
static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
				struct mkimage_params *params)
{
	unsigned char sha1_output[20];
	uint32_t checksum;

	image_header_t * hdr = (image_header_t *)ptr;

	// CWWeng 2015/3/5 add SHA-1 library for hardware checksum
	if (params->checksum == IH_CHECKSUM_SHA1) {
		sha1_csum((const unsigned char *)(ptr + sizeof(image_header_t)), sbuf->st_size - sizeof(image_header_t), sha1_output);
		checksum = sha1_output[0] + (sha1_output[1] << 8) + (sha1_output[2] << 16) + (sha1_output[3] << 24);
	}
	else {
		checksum = crc32(0,
				(const unsigned char *)(ptr +
					sizeof(image_header_t)),
				sbuf->st_size - sizeof(image_header_t));
	}

	/* Build new header */
	image_set_magic(hdr, IH_MAGIC);
	image_set_time(hdr, sbuf->st_mtime);
	image_set_size(hdr, sbuf->st_size - sizeof(image_header_t));
	image_set_load(hdr, params->addr);
	image_set_ep(hdr, params->ep);
	image_set_dcrc(hdr, checksum);
	image_set_os(hdr, params->os);
	image_set_arch(hdr, params->arch);
	image_set_type(hdr, params->type);
	image_set_comp(hdr, params->comp);

	image_set_name(hdr, params->imagename);

	checksum = crc32(0, (const unsigned char *)hdr,
				sizeof(image_header_t));

	image_set_hcrc(hdr, checksum);
}
Beispiel #3
0
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);
}