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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | // SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2013 * * Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com> */ #include "imagetool.h" #include <image.h> struct imgtool_funcs *imagetool_get_type(int type) { struct imgtool_funcs **curr; INIT_SECTION(image_type); struct imgtool_funcs **start = __start_image_type; struct imgtool_funcs **end = __stop_image_type; for (curr = start; curr != end; curr++) { if ((*curr)->check_image_type) { if (!(*curr)->check_image_type(type)) return *curr; } } return NULL; } static int imagetool_verify_print_header_by_type( void *ptr, struct stat *sbuf, struct imgtool_funcs *tparams, struct imgtool *itl); int imagetool_verify_print_header( void *ptr, struct stat *sbuf, struct imgtool_funcs *tparams, struct imgtool *itl) { int retval = -1; struct imgtool_funcs **curr; INIT_SECTION(image_type); struct imgtool_funcs **start = __start_image_type; struct imgtool_funcs **end = __stop_image_type; if (tparams) return imagetool_verify_print_header_by_type(ptr, sbuf, tparams, itl); for (curr = start; curr != end; curr++) { /* * Basically every data file can be guessed / verified as gpimage, * so skip autodetection of data file as gpimage as it does not work. */ if ((*curr)->check_image_type && (*curr)->check_image_type(IH_TYPE_GPIMAGE) == 0) continue; if ((*curr)->verify_header) { retval = (*curr)->verify_header((unsigned char *)ptr, sbuf->st_size, itl); if (retval == 0) { /* * Print the image information if verify is * successful */ if ((*curr)->print_header) { if (!itl->quiet) (*curr)->print_header(ptr, itl); } else { fprintf(stderr, "%s: print_header undefined for %s\n", itl->cmdname, (*curr)->name); } break; } } } if (retval != 0) { fprintf(stderr, "%s: cannot detect image type\n", itl->cmdname); } return retval; } static int imagetool_verify_print_header_by_type( void *ptr, struct stat *sbuf, struct imgtool_funcs *tparams, struct imgtool *itl) { int retval = -1; if (tparams->verify_header) { retval = tparams->verify_header((unsigned char *)ptr, sbuf->st_size, itl); if (retval == 0) { /* * Print the image information if verify is successful */ if (tparams->print_header) { if (!itl->quiet) tparams->print_header(ptr, itl); } else { fprintf(stderr, "%s: print_header undefined for %s\n", itl->cmdname, tparams->name); } } else { fprintf(stderr, "%s: verify_header failed for %s with exit code %d\n", itl->cmdname, tparams->name, retval); } } else { fprintf(stderr, "%s: verify_header undefined for %s\n", itl->cmdname, tparams->name); } return retval; } int imagetool_save_subimage( const char *file_name, ulong file_data, ulong file_len) { int dfd; dfd = open(file_name, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWUSR); if (dfd < 0) { fprintf(stderr, "Can't open \"%s\": %s\n", file_name, strerror(errno)); return -1; } if (write(dfd, (void *)file_data, file_len) != (ssize_t)file_len) { fprintf(stderr, "Write error on \"%s\": %s\n", file_name, strerror(errno)); close(dfd); return -1; } close(dfd); return 0; } int imagetool_get_filesize(struct imgtool *itl, const char *fname) { struct stat sbuf; int fd; fd = open(fname, O_RDONLY | O_BINARY); if (fd < 0) { fprintf(stderr, "%s: Can't open %s: %s\n", itl->cmdname, fname, strerror(errno)); return -1; } if (fstat(fd, &sbuf) < 0) { fprintf(stderr, "%s: Can't stat %s: %s\n", itl->cmdname, fname, strerror(errno)); close(fd); return -1; } close(fd); return sbuf.st_size; } time_t imagetool_get_source_date( const char *cmdname, time_t fallback) { char *source_date_epoch = getenv("SOURCE_DATE_EPOCH"); if (source_date_epoch == NULL) return fallback; time_t time = (time_t) strtol(source_date_epoch, NULL, 10); if (gmtime(&time) == NULL) { fprintf(stderr, "%s: SOURCE_DATE_EPOCH is not valid\n", cmdname); time = 0; } return time; } |