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      1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      2  * All rights reserved.
      3  *
      4  * This package is an SSL implementation written
      5  * by Eric Young (eay (at) cryptsoft.com).
      6  * The implementation was written so as to conform with Netscapes SSL.
      7  *
      8  * This library is free for commercial and non-commercial use as long as
      9  * the following conditions are aheared to.  The following conditions
     10  * apply to all code found in this distribution, be it the RC4, RSA,
     11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     12  * included with this distribution is covered by the same copyright terms
     13  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     14  *
     15  * Copyright remains Eric Young's, and as such any Copyright notices in
     16  * the code are not to be removed.
     17  * If this package is used in a product, Eric Young should be given attribution
     18  * as the author of the parts of the library used.
     19  * This can be in the form of a textual message at program startup or
     20  * in documentation (online or textual) provided with the package.
     21  *
     22  * Redistribution and use in source and binary forms, with or without
     23  * modification, are permitted provided that the following conditions
     24  * are met:
     25  * 1. Redistributions of source code must retain the copyright
     26  *    notice, this list of conditions and the following disclaimer.
     27  * 2. Redistributions in binary form must reproduce the above copyright
     28  *    notice, this list of conditions and the following disclaimer in the
     29  *    documentation and/or other materials provided with the distribution.
     30  * 3. All advertising materials mentioning features or use of this software
     31  *    must display the following acknowledgement:
     32  *    "This product includes cryptographic software written by
     33  *     Eric Young (eay (at) cryptsoft.com)"
     34  *    The word 'cryptographic' can be left out if the rouines from the library
     35  *    being used are not cryptographic related :-).
     36  * 4. If you include any Windows specific code (or a derivative thereof) from
     37  *    the apps directory (application code) you must include an acknowledgement:
     38  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     39  *
     40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     50  * SUCH DAMAGE.
     51  *
     52  * The licence and distribution terms for any publically available version or
     53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     54  * copied and put under another distribution licence
     55  * [including the GNU Public Licence.] */
     56 
     57 #include <openssl/mem.h>
     58 #include <openssl/x509.h>
     59 
     60 const char *X509_verify_cert_error_string(long n)
     61 {
     62     static char buf[100];
     63 
     64     switch ((int)n) {
     65     case X509_V_OK:
     66         return ("ok");
     67     case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
     68         return ("unable to get issuer certificate");
     69     case X509_V_ERR_UNABLE_TO_GET_CRL:
     70         return ("unable to get certificate CRL");
     71     case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
     72         return ("unable to decrypt certificate's signature");
     73     case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
     74         return ("unable to decrypt CRL's signature");
     75     case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
     76         return ("unable to decode issuer public key");
     77     case X509_V_ERR_CERT_SIGNATURE_FAILURE:
     78         return ("certificate signature failure");
     79     case X509_V_ERR_CRL_SIGNATURE_FAILURE:
     80         return ("CRL signature failure");
     81     case X509_V_ERR_CERT_NOT_YET_VALID:
     82         return ("certificate is not yet valid");
     83     case X509_V_ERR_CRL_NOT_YET_VALID:
     84         return ("CRL is not yet valid");
     85     case X509_V_ERR_CERT_HAS_EXPIRED:
     86         return ("certificate has expired");
     87     case X509_V_ERR_CRL_HAS_EXPIRED:
     88         return ("CRL has expired");
     89     case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
     90         return ("format error in certificate's notBefore field");
     91     case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
     92         return ("format error in certificate's notAfter field");
     93     case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
     94         return ("format error in CRL's lastUpdate field");
     95     case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
     96         return ("format error in CRL's nextUpdate field");
     97     case X509_V_ERR_OUT_OF_MEM:
     98         return ("out of memory");
     99     case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
    100         return ("self signed certificate");
    101     case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
    102         return ("self signed certificate in certificate chain");
    103     case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
    104         return ("unable to get local issuer certificate");
    105     case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
    106         return ("unable to verify the first certificate");
    107     case X509_V_ERR_CERT_CHAIN_TOO_LONG:
    108         return ("certificate chain too long");
    109     case X509_V_ERR_CERT_REVOKED:
    110         return ("certificate revoked");
    111     case X509_V_ERR_INVALID_CA:
    112         return ("invalid CA certificate");
    113     case X509_V_ERR_INVALID_NON_CA:
    114         return ("invalid non-CA certificate (has CA markings)");
    115     case X509_V_ERR_PATH_LENGTH_EXCEEDED:
    116         return ("path length constraint exceeded");
    117     case X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED:
    118         return ("proxy path length constraint exceeded");
    119     case X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED:
    120         return
    121             ("proxy certificates not allowed, please set the appropriate flag");
    122     case X509_V_ERR_INVALID_PURPOSE:
    123         return ("unsupported certificate purpose");
    124     case X509_V_ERR_CERT_UNTRUSTED:
    125         return ("certificate not trusted");
    126     case X509_V_ERR_CERT_REJECTED:
    127         return ("certificate rejected");
    128     case X509_V_ERR_APPLICATION_VERIFICATION:
    129         return ("application verification failure");
    130     case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
    131         return ("subject issuer mismatch");
    132     case X509_V_ERR_AKID_SKID_MISMATCH:
    133         return ("authority and subject key identifier mismatch");
    134     case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
    135         return ("authority and issuer serial number mismatch");
    136     case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
    137         return ("key usage does not include certificate signing");
    138     case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
    139         return ("unable to get CRL issuer certificate");
    140     case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
    141         return ("unhandled critical extension");
    142     case X509_V_ERR_KEYUSAGE_NO_CRL_SIGN:
    143         return ("key usage does not include CRL signing");
    144     case X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE:
    145         return ("key usage does not include digital signature");
    146     case X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION:
    147         return ("unhandled critical CRL extension");
    148     case X509_V_ERR_INVALID_EXTENSION:
    149         return ("invalid or inconsistent certificate extension");
    150     case X509_V_ERR_INVALID_POLICY_EXTENSION:
    151         return ("invalid or inconsistent certificate policy extension");
    152     case X509_V_ERR_NO_EXPLICIT_POLICY:
    153         return ("no explicit policy");
    154     case X509_V_ERR_DIFFERENT_CRL_SCOPE:
    155         return ("Different CRL scope");
    156     case X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE:
    157         return ("Unsupported extension feature");
    158     case X509_V_ERR_UNNESTED_RESOURCE:
    159         return ("RFC 3779 resource not subset of parent's resources");
    160 
    161     case X509_V_ERR_PERMITTED_VIOLATION:
    162         return ("permitted subtree violation");
    163     case X509_V_ERR_EXCLUDED_VIOLATION:
    164         return ("excluded subtree violation");
    165     case X509_V_ERR_SUBTREE_MINMAX:
    166         return ("name constraints minimum and maximum not supported");
    167     case X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE:
    168         return ("unsupported name constraint type");
    169     case X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX:
    170         return ("unsupported or invalid name constraint syntax");
    171     case X509_V_ERR_UNSUPPORTED_NAME_SYNTAX:
    172         return ("unsupported or invalid name syntax");
    173     case X509_V_ERR_CRL_PATH_VALIDATION_ERROR:
    174         return ("CRL path validation error");
    175 
    176     case X509_V_ERR_SUITE_B_INVALID_VERSION:
    177         return ("Suite B: certificate version invalid");
    178     case X509_V_ERR_SUITE_B_INVALID_ALGORITHM:
    179         return ("Suite B: invalid public key algorithm");
    180     case X509_V_ERR_SUITE_B_INVALID_CURVE:
    181         return ("Suite B: invalid ECC curve");
    182     case X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM:
    183         return ("Suite B: invalid signature algorithm");
    184     case X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED:
    185         return ("Suite B: curve not allowed for this LOS");
    186     case X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256:
    187         return ("Suite B: cannot sign P-384 with P-256");
    188 
    189     case X509_V_ERR_HOSTNAME_MISMATCH:
    190         return ("Hostname mismatch");
    191     case X509_V_ERR_EMAIL_MISMATCH:
    192         return ("Email address mismatch");
    193     case X509_V_ERR_IP_ADDRESS_MISMATCH:
    194         return ("IP address mismatch");
    195 
    196     case X509_V_ERR_INVALID_CALL:
    197         return ("Invalid certificate verification context");
    198     case X509_V_ERR_STORE_LOOKUP:
    199         return ("Issuer certificate lookup error");
    200 
    201     default:
    202         BIO_snprintf(buf, sizeof buf, "error number %ld", n);
    203         return (buf);
    204     }
    205 }
    206