crypto/ct/ct_prn.c

   1 /*
   2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifdef OPENSSL_NO_CT
  11 # error "CT is disabled"
  12 #endif
  13
  14 #include <openssl/asn1.h>
  15 #include <openssl/bio.h>
  16
  17 #include "ct_locl.h"
  18
  19 static void SCT_signature_algorithms_print(const SCT *sct, BIO *out)
  20 {
  21     int nid = SCT_get_signature_nid(sct);
  22
  23     if (nid == NID_undef)
  24         BIO_printf(out, "%02X%02X", sct->hash_alg, sct->sig_alg);
  25     else
  26         BIO_printf(out, "%s", OBJ_nid2ln(nid));
  27 }
  28
  29 static void timestamp_print(uint64_t timestamp, BIO *out)
  30 {
  31     ASN1_GENERALIZEDTIME *gen = ASN1_GENERALIZEDTIME_new();
  32     char genstr[20];
  33
  34     if (gen == NULL)
  35         return;
  36     ASN1_GENERALIZEDTIME_adj(gen, (time_t)0,
  37                              (int)(timestamp / 86400000),
  38                              (timestamp % 86400000) / 1000);
  39     /*
  40      * Note GeneralizedTime from ASN1_GENERALIZETIME_adj is always 15
  41      * characters long with a final Z. Update it with fractional seconds.
  42      */
  43     BIO_snprintf(genstr, sizeof(genstr), "%.14s.%03dZ",
  44                  ASN1_STRING_data(gen), (unsigned int)(timestamp % 1000));
  45     if (ASN1_GENERALIZEDTIME_set_string(gen, genstr))
  46         ASN1_GENERALIZEDTIME_print(out, gen);
  47     ASN1_GENERALIZEDTIME_free(gen);
  48 }
  49
  50 const char *SCT_validation_status_string(const SCT *sct)
  51 {
  52
  53     switch (SCT_get_validation_status(sct)) {
  54     case SCT_VALIDATION_STATUS_NOT_SET:
  55         return "not set";
  56     case SCT_VALIDATION_STATUS_UNKNOWN_VERSION:
  57         return "unknown version";
  58     case SCT_VALIDATION_STATUS_UNKNOWN_LOG:
  59         return "unknown log";
  60     case SCT_VALIDATION_STATUS_UNVERIFIED:
  61         return "unverified";
  62     case SCT_VALIDATION_STATUS_INVALID:
  63         return "invalid";
  64     case SCT_VALIDATION_STATUS_VALID:
  65         return "valid";
  66     }
  67     return "unknown status";
  68 }
  69
  70 void SCT_print(const SCT *sct, BIO *out, int indent,
  71                const CTLOG_STORE *log_store)
  72 {
  73     const CTLOG *log = NULL;
  74
  75     if (log_store != NULL) {
  76         log = CTLOG_STORE_get0_log_by_id(log_store, sct->log_id,
  77                                          sct->log_id_len);
  78     }
  79
  80     BIO_printf(out, "%*sSigned Certificate Timestamp:", indent, "");
  81     BIO_printf(out, "\n%*sVersion   : ", indent + 4, "");
  82
  83     if (sct->version != SCT_VERSION_V1) {
  84         BIO_printf(out, "unknown\n%*s", indent + 16, "");
  85         BIO_hex_string(out, indent + 16, 16, sct->sct, sct->sct_len);
  86         return;
  87     }
  88
  89     BIO_printf(out, "v1 (0x0)");
  90
  91     if (log != NULL) {
  92         BIO_printf(out, "\n%*sLog       : %s", indent + 4, "",
  93                    CTLOG_get0_name(log));
  94     }
  95
  96     BIO_printf(out, "\n%*sLog ID    : ", indent + 4, "");
  97     BIO_hex_string(out, indent + 16, 16, sct->log_id, sct->log_id_len);
  98
  99     BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
 100     timestamp_print(sct->timestamp, out);
 101
 102     BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
 103     if (sct->ext_len == 0)
 104         BIO_printf(out, "none");
 105     else
 106         BIO_hex_string(out, indent + 16, 16, sct->ext, sct->ext_len);
 107
 108     BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
 109     SCT_signature_algorithms_print(sct, out);
 110     BIO_printf(out, "\n%*s            ", indent + 4, "");
 111     BIO_hex_string(out, indent + 16, 16, sct->sig, sct->sig_len);
 112 }
 113
 114 void SCT_LIST_print(const STACK_OF(SCT) *sct_list, BIO *out, int indent,
 115                     const char *separator, const CTLOG_STORE *log_store)
 116 {
 117     int sct_count = sk_SCT_num(sct_list);
 118     int i;
 119
 120     for (i = 0; i < sct_count; ++i) {
 121         SCT *sct = sk_SCT_value(sct_list, i);
 122
 123         SCT_print(sct, out, indent, log_store);
 124         if (i < sk_SCT_num(sct_list) - 1)
 125             BIO_printf(out, "%s", separator);
 126     }
 127 }