/* * (C) Copyright 2014 * DENX Software Engineering * Heiko Schocher <hs@denx.de> * * (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. * * SPDX-License-Identifier: GPL-2.0+ */ #include "imagetool.h" #include "mkimage.h" #include "fit_common.h" #include <image.h> #include <u-boot/crc.h> int fit_verify_header(unsigned char *ptr, int image_size, struct image_tool_params *params) { return fdt_check_header(ptr); } int fit_check_image_types(uint8_t type) { if (type == IH_TYPE_FLATDT) return EXIT_SUCCESS; else return EXIT_FAILURE; } int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc, void **blobp, struct stat *sbuf, bool delete_on_error) { void *ptr; int fd; /* Load FIT blob into memory (we need to write hashes/signatures) */ fd = open(fname, O_RDWR | O_BINARY); if (fd < 0) { fprintf(stderr, "%s: Can't open %s: %s\n", cmdname, fname, strerror(errno)); goto err; } if (fstat(fd, sbuf) < 0) { fprintf(stderr, "%s: Can't stat %s: %s\n", cmdname, fname, strerror(errno)); goto err; } if (size_inc) { sbuf->st_size += size_inc; if (ftruncate(fd, sbuf->st_size)) { fprintf(stderr, "%s: Can't expand %s: %s\n", cmdname, fname, strerror(errno)); goto err; } } errno = 0; ptr = mmap(0, sbuf->st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); if ((ptr == MAP_FAILED) || (errno != 0)) { fprintf(stderr, "%s: Can't read %s: %s\n", cmdname, fname, strerror(errno)); goto err; } /* check if ptr has a valid blob */ if (fdt_check_header(ptr)) { fprintf(stderr, "%s: Invalid FIT blob\n", cmdname); goto err; } /* expand if needed */ if (size_inc) { int ret; ret = fdt_open_into(ptr, ptr, sbuf->st_size); if (ret) { fprintf(stderr, "%s: Cannot expand FDT: %s\n", cmdname, fdt_strerror(ret)); goto err; } } *blobp = ptr; return fd; err: if (fd >= 0) close(fd); if (delete_on_error) unlink(fname); return -1; }