cmd/md5sum.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2011
   4  * Joe Hershberger, National Instruments, joe.hershberger@ni.com
   5  *
   6  * (C) Copyright 2000
   7  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   8  */
   9
  10 #include <command.h>
  11 #include <env.h>
  12 #include <image.h>
  13 #include <hash.h>
  14 #include <mapmem.h>
  15 #include <u-boot/md5.h>
  16 #include <asm/io.h>
  17
  18 static int do_md5sum(struct cmd_tbl *cmdtp, int flag, int argc,
  19                      char *const argv[])
  20 {
  21         int flags = HASH_FLAG_ENV;
  22         int ac;
  23         char *const *av;
  24
  25         if (argc < 3)
  26                 return CMD_RET_USAGE;
  27
  28         av = argv + 1;
  29         ac = argc - 1;
  30         if (IS_ENABLED(CONFIG_MD5SUM_VERIFY) && strcmp(*av, "-v") == 0) {
  31                 flags |= HASH_FLAG_VERIFY;
  32                 av++;
  33                 ac--;
  34         }
  35
  36         return hash_command("md5", flags, cmdtp, flag, ac, av);
  37 }
  38
  39 #if IS_ENABLED(CONFIG_MD5SUM_VERIFY)
  40 U_BOOT_CMD(
  41         md5sum, 5,      1,      do_md5sum,
  42         "compute MD5 message digest",
  43         "address count [[*]sum]\n"
  44                 "    - compute MD5 message digest [save to sum]\n"
  45         "md5sum -v address count [*]sum\n"
  46                 "    - verify md5sum of memory area"
  47 );
  48 #else
  49 U_BOOT_CMD(
  50         md5sum, 4,      1,      do_md5sum,
  51         "compute MD5 message digest",
  52         "address count [[*]sum]\n"
  53                 "    - compute MD5 message digest [save to sum]"
  54 );
  55 #endif /* IS_ENABLED(CONFIG_MD5SUM_VERIFY) */