info.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause
   3  *
   4  * Copyright (c) 2022 Cameron Katri.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY CAMERON KATRI AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL CAMERON KATRI OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 #include <getopt.h>
  29 #include <stdbool.h>
  30 #include <stdint.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33
  34 #include "trustcache.h"
  35
  36 int
  37 tcinfo(int argc, char **argv)
  38 {
  39         struct trust_cache cache;
  40         bool headeronly = false, onlyhash = false;
  41         uint32_t entrynum = -1;
  42         const char *errstr = NULL;
  43
  44         int ch;
  45         while ((ch = getopt(argc, argv, "che:")) != -1) {
  46                 switch (ch) {
  47                         case 'h':
  48                                 headeronly = true;
  49                                 break;
  50                         case 'e':
  51                                 entrynum = strtonum(optarg, 1, UINT32_MAX, &errstr);
  52                                 if (errstr != NULL) {
  53                                         fprintf(stderr, "entry number is %s: %s\n", errstr, optarg);
  54                                         exit(1);
  55                                 }
  56                                 break;
  57                         case 'c':
  58                                 onlyhash = true;
  59                                 break;
  60                 }
  61         }
  62
  63         argc -= optind;
  64         argv += optind;
  65
  66         if (argc == 0)
  67                 return -1;
  68
  69         cache = opentrustcache(argv[0]);
  70
  71         if (entrynum == -1 && !onlyhash)
  72                 print_header(cache);
  73         if (!headeronly) {
  74                 if (onlyhash) {
  75                         for (uint32_t i = 0; i < cache.num_entries; i++) {
  76                                 if (cache.version == 0)
  77                                         print_hash(cache.hashes[i], true);
  78                                 else
  79                                         print_hash(cache.entries[i].cdhash, true);
  80                         }
  81                         goto done;
  82                 }
  83                 if (entrynum != -1) {
  84                         if (entrynum > cache.num_entries) {
  85                                 fprintf(stderr, "no entry %i\n", entrynum);
  86                                 exit(1);
  87                         }
  88                         if (cache.version == 1) {
  89                                 print_entry(cache.entries[entrynum - 1]);
  90                         } else if (cache.version == 0) {
  91                                 print_hash(cache.hashes[entrynum - 1], true);
  92                         }
  93                 } else {
  94                         print_entries(cache);
  95                 }
  96         }
  97
  98 done:
  99         free(cache.entries);
 100
 101         return 0;
 102 }
 103
 104 void
 105 print_header(struct trust_cache cache)
 106 {
 107         printf("version = %i\n", cache.version);
 108         char out[37];
 109         uuid_unparse(cache.uuid, out);
 110         printf("uuid = %s\n", out);
 111         printf("entry count = %i\n", cache.num_entries);
 112 }
 113
 114 void
 115 print_entries(struct trust_cache cache)
 116 {
 117         for (uint32_t i = 0; i < cache.num_entries; i++) {
 118                 if (cache.version == 0)
 119                         print_hash(cache.hashes[i], true);
 120                 else if (cache.version == 1)
 121                         print_entry(cache.entries[i]);
 122         }
 123 }
 124
 125 void
 126 print_entry(struct trust_cache_entry1 entry)
 127 {
 128         print_hash(entry.cdhash, false);
 129
 130         switch (entry.flags) {
 131                 case CS_TRUST_CACHE_AMFID:
 132                         printf(" CS_TRUST_CACHE_AMFID ");
 133                         break;
 134                 case CS_TRUST_CACHE_ANE:
 135                         printf(" CS_TRUST_CACHE_ANE ");
 136                         break;
 137                 case CS_TRUST_CACHE_AMFID|CS_TRUST_CACHE_ANE:
 138                         printf(" CS_TRUST_CACHE_AMFID|CS_TRUST_CACHE_ANE ");
 139                         break;
 140                 case 0:
 141                         printf(" [none] ");
 142                         break;
 143                 default:
 144                         printf(" [%i] ", entry.flags);
 145                         break;
 146         }
 147
 148         printf("[%i]\n", entry.hash_type);
 149 }
 150
 151 void
 152 print_hash(uint8_t cdhash[CS_CDHASH_LEN], bool newline)
 153 {
 154         for (size_t j = 0; j < CS_CDHASH_LEN; j++) {
 155                 printf("%02x", cdhash[j]);
 156         }
 157         if (newline)
 158                 printf("\n");
 159 }