util/cbfstool/cbfstool.c

   1 /*
   2  * cbfstool, CLI utility for CBFS file manipulation
   3  *
   4  * Copyright (C) 2009 coresystems GmbH
   5  *                 written by Patrick Georgi <patrick.georgi@coresystems.de>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <ctype.h>
  25 #include "common.h"
  26 #include "cbfs.h"
  27
  28 typedef enum {
  29         CMD_ADD,
  30         CMD_ADD_PAYLOAD,
  31         CMD_ADD_STAGE,
  32         CMD_CREATE,
  33         CMD_LOCATE,
  34         CMD_PRINT,
  35         CMD_EXTRACT,
  36 } cmd_t;
  37
  38 struct command {
  39         cmd_t id;
  40         const char *name;
  41         int (*function) (int argc, char **argv);
  42 };
  43
  44 static int cbfs_add(int argc, char **argv)
  45 {
  46         char *romname = argv[1];
  47         char *cmd = argv[2];
  48         void *rom = loadrom(romname);
  49
  50         if (rom == NULL) {
  51                 printf("Could not load ROM image '%s'.\n", romname);
  52                 return 1;
  53         }
  54
  55         if (argc < 5) {
  56                 printf("not enough arguments to '%s'.\n", cmd);
  57                 return 1;
  58         }
  59
  60         char *filename = argv[3];
  61         char *cbfsname = argv[4];
  62
  63         uint32_t filesize = 0;
  64         void *filedata = loadfile(filename, &filesize, 0, SEEK_SET);
  65         if (filedata == NULL) {
  66                 printf("Could not load file '%s'.\n", filename);
  67                 return 1;
  68         }
  69
  70         uint32_t base = 0;
  71         void *cbfsfile = NULL;
  72
  73         if (argc < 6) {
  74                 printf("not enough arguments to 'add'.\n");
  75                 return 1;
  76         }
  77         uint32_t type;
  78         if (intfiletype(argv[5]) != ((uint64_t) - 1))
  79                 type = intfiletype(argv[5]);
  80         else
  81                 type = strtoul(argv[5], NULL, 0);
  82         if (argc > 6) {
  83                 base = strtoul(argv[6], NULL, 0);
  84         }
  85         cbfsfile = create_cbfs_file(cbfsname, filedata, &filesize, type, &base);
  86         if (add_file_to_cbfs(cbfsfile, filesize, base)) {
  87                 printf("Adding file '%s' failed.\n", filename);
  88                 return 1;
  89         }
  90         if (writerom(romname, rom, romsize))
  91                 return 1;
  92         return 0;
  93 }
  94
  95 static int cbfs_add_payload(int argc, char **argv)
  96 {
  97         char *romname = argv[1];
  98         char *cmd = argv[2];
  99         void *rom = loadrom(romname);
 100
 101         if (rom == NULL) {
 102                 printf("Could not load ROM image '%s'.\n", romname);
 103                 return 1;
 104         }
 105
 106         if (argc < 5) {
 107                 printf("not enough arguments to '%s'.\n", cmd);
 108                 return 1;
 109         }
 110
 111         char *filename = argv[3];
 112         char *cbfsname = argv[4];
 113
 114         uint32_t filesize = 0;
 115         void *filedata = loadfile(filename, &filesize, 0, SEEK_SET);
 116         if (filedata == NULL) {
 117                 printf("Could not load file '%s'.\n", filename);
 118                 return 1;
 119         }
 120
 121         uint32_t base = 0;
 122         void *cbfsfile = NULL;
 123
 124         comp_algo algo = CBFS_COMPRESS_NONE;
 125         if (argc > 5) {
 126                 if (argv[5][0] == 'l')
 127                         algo = CBFS_COMPRESS_LZMA;
 128         }
 129         if (argc > 6) {
 130                 base = strtoul(argv[6], NULL, 0);
 131         }
 132         unsigned char *payload;
 133         filesize = parse_elf_to_payload(filedata, &payload, algo);
 134         cbfsfile =
 135             create_cbfs_file(cbfsname, payload, &filesize,
 136                              CBFS_COMPONENT_PAYLOAD, &base);
 137         if (add_file_to_cbfs(cbfsfile, filesize, base)) {
 138                 printf("Adding payload '%s' failed.\n", filename);
 139                 return 1;
 140         }
 141         if (writerom(romname, rom, romsize))
 142                 return 1;
 143         return 0;
 144 }
 145
 146 static int cbfs_add_stage(int argc, char **argv)
 147 {
 148         char *romname = argv[1];
 149         char *cmd = argv[2];
 150         void *rom = loadrom(romname);
 151
 152         if (rom == NULL) {
 153                 printf("Could not load ROM image '%s'.\n", romname);
 154                 return 1;
 155         }
 156
 157         if (argc < 5) {
 158                 printf("not enough arguments to '%s'.\n", cmd);
 159                 return 1;
 160         }
 161
 162         char *filename = argv[3];
 163         char *cbfsname = argv[4];
 164
 165         uint32_t filesize = 0;
 166         void *filedata = loadfile(filename, &filesize, 0, SEEK_SET);
 167         if (filedata == NULL) {
 168                 printf("Could not load file '%s'.\n", filename);
 169                 return 1;
 170         }
 171
 172         uint32_t base = 0;
 173         void *cbfsfile = NULL;
 174
 175         comp_algo algo = CBFS_COMPRESS_NONE;
 176         if (argc > 5) {
 177                 if (argv[5][0] == 'l')
 178                         algo = CBFS_COMPRESS_LZMA;
 179         }
 180         if (argc > 6) {
 181                 base = strtoul(argv[6], NULL, 0);
 182         }
 183         unsigned char *stage;
 184         filesize = parse_elf_to_stage(filedata, &stage, algo, &base);
 185         cbfsfile =
 186             create_cbfs_file(cbfsname, stage, &filesize,
 187                              CBFS_COMPONENT_STAGE, &base);
 188
 189         if (add_file_to_cbfs(cbfsfile, filesize, base)) {
 190                 printf("Adding stage '%s' failed.\n", filename);
 191                 return 1;
 192         }
 193         if (writerom(romname, rom, romsize))
 194                 return 1;
 195         return 0;
 196 }
 197
 198 static int cbfs_create(int argc, char **argv)
 199 {
 200         char *romname = argv[1];
 201         if (argc < 5) {
 202                 printf("not enough arguments to 'create'.\n");
 203                 return 1;
 204         }
 205
 206         char* suffix;
 207         uint32_t size = strtoul(argv[3], &suffix, 0);
 208         if (tolower(suffix[0])=='k') {
 209                 size *= 1024;
 210         }
 211         if (tolower(suffix[0])=='m') {
 212                 size *= 1024 * 1024;
 213         }
 214         char *bootblock = argv[4];
 215         uint32_t align = 0;
 216
 217         if (argc > 5)
 218                 align = strtoul(argv[5], NULL, 0);
 219
 220         return create_cbfs_image(romname, size, bootblock, align);
 221 }
 222
 223 static int cbfs_locate(int argc, char **argv)
 224 {
 225         char *romname = argv[1];
 226         if (argc < 6) {
 227                 printf("not enough arguments to 'locate'.\n");
 228                 return 1;
 229         }
 230
 231         const char *file = argv[3];
 232         uint32_t filesize = getfilesize(file);
 233         const char *filename = argv[4];
 234         int align = strtoul(argv[5], NULL, 0);
 235
 236         printf("%x\n", cbfs_find_location(romname, filesize, filename, align));
 237         return 0;
 238 }
 239
 240 static int cbfs_print(int argc, char **argv)
 241 {
 242         char *romname = argv[1];
 243         void *rom = loadrom(romname);
 244
 245         if (rom == NULL) {
 246                 printf("Could not load ROM image '%s'.\n", romname);
 247                 return 1;
 248         }
 249
 250         print_cbfs_directory(romname);
 251         return 0;
 252 }
 253
 254 static int cbfs_extract(int argc, char **argv)
 255 {
 256         char *romname = argv[1];
 257         void *rom = loadrom(romname);
 258
 259         if (rom == NULL) {
 260                 printf("Could not load ROM image '%s'.\n", romname);
 261                 return 1;
 262         }
 263
 264         if (argc != 5)
 265         {
 266                 printf("Error: you must specify a CBFS name and a file to dump it in.\n");
 267                 return 1;
 268         }
 269
 270         return extract_file_from_cbfs(romname, argv[3], argv[4]);
 271 }
 272
 273 static const struct command commands[] = {
 274         {CMD_ADD, "add", cbfs_add},
 275         {CMD_ADD_PAYLOAD, "add-payload", cbfs_add_payload},
 276         {CMD_ADD_STAGE, "add-stage", cbfs_add_stage},
 277         {CMD_CREATE, "create", cbfs_create},
 278         {CMD_LOCATE, "locate", cbfs_locate},
 279         {CMD_PRINT, "print", cbfs_print},
 280         {CMD_EXTRACT, "extract", cbfs_extract},
 281 };
 282
 283 static void usage(void)
 284 {
 285         printf
 286             ("cbfstool: Management utility for CBFS formatted ROM images\n\n"
 287              "USAGE:\n" " cbfstool [-h]\n"
 288              " cbfstool FILE COMMAND [PARAMETERS]...\n\n" "OPTIONs:\n"
 289              "  -h              Display this help message\n\n"
 290              "COMMANDs:\n"
 291              " add FILE NAME TYPE [base address]    Add a component\n"
 292              " add-payload FILE NAME [COMP] [base]  Add a payload to the ROM\n"
 293              " add-stage FILE NAME [COMP] [base]    Add a stage to the ROM\n"
 294              " create SIZE BOOTBLOCK [ALIGN]        Create a ROM file\n"
 295              " locate FILE NAME ALIGN               Find a place for a file of that size\n"
 296              " print                                Show the contents of the ROM\n"
 297              " extract NAME FILE                    Extracts a raw payload from ROM\n"
 298              "\n"
 299              "TYPEs:\n"
 300              );
 301         print_supported_filetypes();
 302 }
 303
 304 /* Small, OS/libc independent runtime check
 305  * for endianess
 306  */
 307 int host_bigendian = 0;
 308
 309 static void which_endian(void)
 310 {
 311         char test[4] = "1234";
 312         uint32_t inttest = *(uint32_t *) test;
 313         if (inttest == 0x31323334) {
 314                 host_bigendian = 1;
 315         }
 316 }
 317
 318 int main(int argc, char **argv)
 319 {
 320         int i;
 321
 322         if (argc < 3) {
 323                 usage();
 324                 return 1;
 325         }
 326
 327         which_endian();
 328
 329         char *cmd = argv[2];
 330
 331         for (i = 0; i < ARRAY_SIZE(commands); i++) {
 332                 if (strcmp(cmd, commands[i].name) != 0)
 333                         continue;
 334                 return commands[i].function(argc, argv);
 335         }
 336
 337         printf("Unknown command '%s'.\n", cmd);
 338         usage();
 339         return 1;
 340 }