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 #include "compat.h"
  37
  38 int
  39 tcinfo(int argc, char **argv)
  40 {
  41         struct trust_cache cache;
  42         bool headeronly = false, onlyhash = false;
  43         uint32_t entrynum = 0;
  44         const char *errstr = NULL;
  45
  46         int ch;
  47         while ((ch = getopt(argc, argv, "che:")) != -1) {
  48                 switch (ch) {
  49                         case 'h':
  50                                 headeronly = true;
  51                                 break;
  52                         case 'e':
  53                                 entrynum = strtonum(optarg, 1, UINT32_MAX, &errstr);
  54                                 if (errstr != NULL) {
  55                                         fprintf(stderr, "entry number is %s: %s\n", errstr, optarg);
  56                                         exit(1);
  57                                 }
  58                                 break;
  59                         case 'c':
  60                                 onlyhash = true;
  61                                 break;
  62                 }
  63         }
  64
  65         argc -= optind;
  66         argv += optind;
  67
  68         if (argc == 0)
  69                 return -1;
  70
  71         cache = opentrustcache(argv[0]);
  72
  73         if (entrynum == 0 && !onlyhash)
  74                 print_header(cache);
  75         if (!headeronly) {
  76                 if (onlyhash) {
  77                         for (uint32_t i = 0; i < cache.num_entries; i++) {
  78                                 if (cache.version == 0)
  79                                         print_hash(cache.hashes[i], true);
  80                                 else
  81                                         print_hash(cache.entries[i].cdhash, true);
  82                         }
  83                         goto done;
  84                 }
  85                 if (entrynum != 0) {
  86                         if (entrynum > cache.num_entries) {
  87                                 fprintf(stderr, "no entry %i\n", entrynum);
  88                                 exit(1);
  89                         }
  90                         if (cache.version == 1) {
  91                                 print_entry(cache.entries[entrynum - 1]);
  92                         } else if (cache.version == 0) {
  93                                 print_hash(cache.hashes[entrynum - 1], true);
  94                         }
  95                 } else {
  96                         print_entries(cache);
  97                 }
  98         }
  99
 100 done:
 101         free(cache.entries);
 102
 103         return 0;
 104 }
 105
 106 void
 107 print_header(struct trust_cache cache)
 108 {
 109         printf("version = %i\n", cache.version);
 110         char out[37];
 111         uuid_unparse(cache.uuid, out);
 112         printf("uuid = %s\n", out);
 113         printf("entry count = %i\n", cache.num_entries);
 114 }
 115
 116 void
 117 print_entries(struct trust_cache cache)
 118 {
 119         for (uint32_t i = 0; i < cache.num_entries; i++) {
 120                 if (cache.version == 0)
 121                         print_hash(cache.hashes[i], true);
 122                 else if (cache.version == 1)
 123                         print_entry(cache.entries[i]);
 124         }
 125 }
 126
 127 void
 128 print_entry(struct trust_cache_entry1 entry)
 129 {
 130         print_hash(entry.cdhash, false);
 131
 132         switch (entry.flags) {
 133                 case CS_TRUST_CACHE_AMFID:
 134                         printf(" CS_TRUST_CACHE_AMFID ");
 135                         break;
 136                 case CS_TRUST_CACHE_ANE:
 137                         printf(" CS_TRUST_CACHE_ANE ");
 138                         break;
 139                 case CS_TRUST_CACHE_AMFID|CS_TRUST_CACHE_ANE:
 140                         printf(" CS_TRUST_CACHE_AMFID|CS_TRUST_CACHE_ANE ");
 141                         break;
 142                 case 0:
 143                         printf(" [none] ");
 144                         break;
 145                 default:
 146                         printf(" [%i] ", entry.flags);
 147                         break;
 148         }
 149
 150         printf("[%i]\n", entry.hash_type);
 151 }
 152
 153 void
 154 print_hash(uint8_t cdhash[CS_CDHASH_LEN], bool newline)
 155 {
 156         for (size_t j = 0; j < CS_CDHASH_LEN; j++) {
 157                 printf("%02x", cdhash[j]);
 158         }
 159         if (newline)
 160                 printf("\n");
 161 }