/* * (C) Copyright 2008 Semihalf * * (C) Copyright 2000-2004 * DENX Software Engineering * Wolfgang Denk, wd@denx.de * * Updated-by: Prafulla Wadaskar <prafulla@marvell.com> * FIT image specific code abstracted from mkimage.c * some functions added to address abstraction * * 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> #include <u-boot/crc.h> static image_header_t header; static int fit_verify_header (unsigned char *ptr, int image_size, struct mkimage_params *params) { return fdt_check_header ((void *)ptr); } static int fit_check_image_types (uint8_t type) { if (type == IH_TYPE_FLATDT) return EXIT_SUCCESS; else return 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 int fit_handle_file (struct mkimage_params *params) { char tmpfile[MKIMAGE_MAX_TMPFILE_LEN]; char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN]; int tfd; struct stat sbuf; unsigned char *ptr; /* Flattened Image Tree (FIT) format handling */ debug ("FIT format handling\n"); /* call dtc to include binary properties into the tmp file */ if (strlen (params->imagefile) + strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) { fprintf (stderr, "%s: Image file name (%s) too long, " "can't create tmpfile", params->imagefile, params->cmdname); return (EXIT_FAILURE); } sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX); /* dtc -I dts -O -p 200 datafile > tmpfile */ sprintf (cmd, "%s %s %s > %s", MKIMAGE_DTC, params->dtc, params->datafile, tmpfile); debug ("Trying to execute \"%s\"\n", cmd); if (system (cmd) == -1) { fprintf (stderr, "%s: system(%s) failed: %s\n", params->cmdname, cmd, strerror(errno)); unlink (tmpfile); return (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", params->cmdname, tmpfile, strerror(errno)); unlink (tmpfile); return (EXIT_FAILURE); } if (fstat (tfd, &sbuf) < 0) { fprintf (stderr, "%s: Can't stat %s: %s\n", params->cmdname, tmpfile, strerror(errno)); unlink (tmpfile); return (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", params->cmdname, tmpfile, strerror(errno)); unlink (tmpfile); return (EXIT_FAILURE); } /* check if ptr has a valid blob */ if (fdt_check_header (ptr)) { fprintf (stderr, "%s: Invalid FIT blob\n", params->cmdname); unlink (tmpfile); return (EXIT_FAILURE); } /* set hashes for images in the blob */ if (fit_set_hashes (ptr)) { fprintf (stderr, "%s Can't add hashes to FIT blob", params->cmdname); unlink (tmpfile); return (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", params->cmdname); unlink (tmpfile); return (EXIT_FAILURE); } debug ("Added timestamp successfully\n"); munmap ((void *)ptr, sbuf.st_size); close (tfd); if (rename (tmpfile, params->imagefile) == -1) { fprintf (stderr, "%s: Can't rename %s to %s: %s\n", params->cmdname, tmpfile, params->imagefile, strerror (errno)); unlink (tmpfile); unlink (params->imagefile); return (EXIT_FAILURE); } return (EXIT_SUCCESS); } static int fit_check_params (struct mkimage_params *params) { return ((params->dflag && (params->fflag || params->lflag)) || (params->fflag && (params->dflag || params->lflag)) || (params->lflag && (params->dflag || params->fflag))); } static struct image_type_params fitimage_params = { .name = "FIT Image support", .header_size = sizeof(image_header_t), .hdr = (void*)&header, .verify_header = fit_verify_header, .print_header = fit_print_contents, .check_image_type = fit_check_image_types, .fflag_handle = fit_handle_file, .set_header = NULL, /* FIT images use DTB header */ .check_params = fit_check_params, }; void init_fit_image_type (void) { mkimage_register (&fitimage_params); }