1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * (C) Copyright 2014 4 * DENX Software Engineering 5 * Heiko Schocher <hs@denx.de> 6 * 7 * Based on: 8 * (C) Copyright 2008 Semihalf 9 * 10 * (C) Copyright 2000-2004 11 * DENX Software Engineering 12 * Wolfgang Denk, wd@denx.de 13 * 14 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com> 15 * FIT image specific code abstracted from mkimage.c 16 * some functions added to address abstraction 17 * 18 * All rights reserved. 19 */ 20 21#include "mkimage.h" 22#include "fit_common.h" 23#include <image.h> 24#include <u-boot/crc.h> 25 26void usage(char *cmdname) 27{ 28 fprintf(stderr, "Usage: %s -f fit file -k key file -c config name\n" 29 " -f ==> set fit file which should be checked'\n" 30 " -k ==> set key .dtb file which contains the key'\n" 31 " -c ==> set the configuration name'\n", 32 cmdname); 33 exit(EXIT_FAILURE); 34} 35 36int main(int argc, char **argv) 37{ 38 int ffd = -1; 39 int kfd = -1; 40 struct stat fsbuf; 41 struct stat ksbuf; 42 void *fit_blob; 43 char *fdtfile = NULL; 44 char *keyfile = NULL; 45 char *config_name = NULL; 46 char cmdname[256]; 47 int ret; 48 void *key_blob; 49 int c; 50 51 strncpy(cmdname, *argv, sizeof(cmdname) - 1); 52 cmdname[sizeof(cmdname) - 1] = '\0'; 53 while ((c = getopt(argc, argv, "f:k:c:")) != -1) 54 switch (c) { 55 case 'f': 56 fdtfile = optarg; 57 break; 58 case 'k': 59 keyfile = optarg; 60 break; 61 case 'c': 62 config_name = optarg; 63 break; 64 default: 65 usage(cmdname); 66 break; 67 } 68 69 if (!fdtfile) { 70 fprintf(stderr, "%s: Missing fdt file\n", *argv); 71 usage(*argv); 72 } 73 if (!keyfile) { 74 fprintf(stderr, "%s: Missing key file\n", *argv); 75 usage(*argv); 76 } 77 78 ffd = mmap_fdt(cmdname, fdtfile, 0, &fit_blob, &fsbuf, false, true); 79 if (ffd < 0) 80 return EXIT_FAILURE; 81 kfd = mmap_fdt(cmdname, keyfile, 0, &key_blob, &ksbuf, false, true); 82 if (kfd < 0) 83 return EXIT_FAILURE; 84 85 image_set_host_blob(key_blob); 86 ret = fit_check_sign(fit_blob, key_blob, config_name); 87 if (!ret) { 88 ret = EXIT_SUCCESS; 89 fprintf(stderr, "Signature check OK\n"); 90 } else { 91 ret = EXIT_FAILURE; 92 fprintf(stderr, "Signature check bad (error %d)\n", ret); 93 } 94 95 (void) munmap((void *)fit_blob, fsbuf.st_size); 96 (void) munmap((void *)key_blob, ksbuf.st_size); 97 98 close(ffd); 99 close(kfd); 100 exit(ret); 101} 102