crypto/openssh/ssherr.c

   1 /*      $OpenBSD: ssherr.c,v 1.10 2020/01/25 23:13:09 djm Exp $ */
   2 /*
   3  * Copyright (c) 2011 Damien Miller
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include <errno.h>
  19 #include <string.h>
  20 #include "ssherr.h"
  21
  22 const char *
  23 ssh_err(int n)
  24 {
  25         switch (n) {
  26         case SSH_ERR_SUCCESS:
  27                 return "success";
  28         case SSH_ERR_INTERNAL_ERROR:
  29                 return "unexpected internal error";
  30         case SSH_ERR_ALLOC_FAIL:
  31                 return "memory allocation failed";
  32         case SSH_ERR_MESSAGE_INCOMPLETE:
  33                 return "incomplete message";
  34         case SSH_ERR_INVALID_FORMAT:
  35                 return "invalid format";
  36         case SSH_ERR_BIGNUM_IS_NEGATIVE:
  37                 return "bignum is negative";
  38         case SSH_ERR_STRING_TOO_LARGE:
  39                 return "string is too large";
  40         case SSH_ERR_BIGNUM_TOO_LARGE:
  41                 return "bignum is too large";
  42         case SSH_ERR_ECPOINT_TOO_LARGE:
  43                 return "elliptic curve point is too large";
  44         case SSH_ERR_NO_BUFFER_SPACE:
  45                 return "insufficient buffer space";
  46         case SSH_ERR_INVALID_ARGUMENT:
  47                 return "invalid argument";
  48         case SSH_ERR_KEY_BITS_MISMATCH:
  49                 return "key bits do not match";
  50         case SSH_ERR_EC_CURVE_INVALID:
  51                 return "invalid elliptic curve";
  52         case SSH_ERR_KEY_TYPE_MISMATCH:
  53                 return "key type does not match";
  54         case SSH_ERR_KEY_TYPE_UNKNOWN:
  55                 return "unknown or unsupported key type";
  56         case SSH_ERR_EC_CURVE_MISMATCH:
  57                 return "elliptic curve does not match";
  58         case SSH_ERR_EXPECTED_CERT:
  59                 return "plain key provided where certificate required";
  60         case SSH_ERR_KEY_LACKS_CERTBLOB:
  61                 return "key lacks certificate data";
  62         case SSH_ERR_KEY_CERT_UNKNOWN_TYPE:
  63                 return "unknown/unsupported certificate type";
  64         case SSH_ERR_KEY_CERT_INVALID_SIGN_KEY:
  65                 return "invalid certificate signing key";
  66         case SSH_ERR_KEY_INVALID_EC_VALUE:
  67                 return "invalid elliptic curve value";
  68         case SSH_ERR_SIGNATURE_INVALID:
  69                 return "incorrect signature";
  70         case SSH_ERR_LIBCRYPTO_ERROR:
  71                 return "error in libcrypto";  /* XXX fetch and return */
  72         case SSH_ERR_UNEXPECTED_TRAILING_DATA:
  73                 return "unexpected bytes remain after decoding";
  74         case SSH_ERR_SYSTEM_ERROR:
  75                 return strerror(errno);
  76         case SSH_ERR_KEY_CERT_INVALID:
  77                 return "invalid certificate";
  78         case SSH_ERR_AGENT_COMMUNICATION:
  79                 return "communication with agent failed";
  80         case SSH_ERR_AGENT_FAILURE:
  81                 return "agent refused operation";
  82         case SSH_ERR_DH_GEX_OUT_OF_RANGE:
  83                 return "DH GEX group out of range";
  84         case SSH_ERR_DISCONNECTED:
  85                 return "disconnected";
  86         case SSH_ERR_MAC_INVALID:
  87                 return "message authentication code incorrect";
  88         case SSH_ERR_NO_CIPHER_ALG_MATCH:
  89                 return "no matching cipher found";
  90         case SSH_ERR_NO_MAC_ALG_MATCH:
  91                 return "no matching MAC found";
  92         case SSH_ERR_NO_COMPRESS_ALG_MATCH:
  93                 return "no matching compression method found";
  94         case SSH_ERR_NO_KEX_ALG_MATCH:
  95                 return "no matching key exchange method found";
  96         case SSH_ERR_NO_HOSTKEY_ALG_MATCH:
  97                 return "no matching host key type found";
  98         case SSH_ERR_PROTOCOL_MISMATCH:
  99                 return "protocol version mismatch";
 100         case SSH_ERR_NO_PROTOCOL_VERSION:
 101                 return "could not read protocol version";
 102         case SSH_ERR_NO_HOSTKEY_LOADED:
 103                 return "could not load host key";
 104         case SSH_ERR_NEED_REKEY:
 105                 return "rekeying not supported by peer";
 106         case SSH_ERR_PASSPHRASE_TOO_SHORT:
 107                 return "passphrase is too short (minimum five characters)";
 108         case SSH_ERR_FILE_CHANGED:
 109                 return "file changed while reading";
 110         case SSH_ERR_KEY_UNKNOWN_CIPHER:
 111                 return "key encrypted using unsupported cipher";
 112         case SSH_ERR_KEY_WRONG_PASSPHRASE:
 113                 return "incorrect passphrase supplied to decrypt private key";
 114         case SSH_ERR_KEY_BAD_PERMISSIONS:
 115                 return "bad permissions";
 116         case SSH_ERR_KEY_CERT_MISMATCH:
 117                 return "certificate does not match key";
 118         case SSH_ERR_KEY_NOT_FOUND:
 119                 return "key not found";
 120         case SSH_ERR_AGENT_NOT_PRESENT:
 121                 return "agent not present";
 122         case SSH_ERR_AGENT_NO_IDENTITIES:
 123                 return "agent contains no identities";
 124         case SSH_ERR_BUFFER_READ_ONLY:
 125                 return "internal error: buffer is read-only";
 126         case SSH_ERR_KRL_BAD_MAGIC:
 127                 return "KRL file has invalid magic number";
 128         case SSH_ERR_KEY_REVOKED:
 129                 return "Key is revoked";
 130         case SSH_ERR_CONN_CLOSED:
 131                 return "Connection closed";
 132         case SSH_ERR_CONN_TIMEOUT:
 133                 return "Connection timed out";
 134         case SSH_ERR_CONN_CORRUPT:
 135                 return "Connection corrupted";
 136         case SSH_ERR_PROTOCOL_ERROR:
 137                 return "Protocol error";
 138         case SSH_ERR_KEY_LENGTH:
 139                 return "Invalid key length";
 140         case SSH_ERR_NUMBER_TOO_LARGE:
 141                 return "number is too large";
 142         case SSH_ERR_SIGN_ALG_UNSUPPORTED:
 143                 return "signature algorithm not supported";
 144         case SSH_ERR_FEATURE_UNSUPPORTED:
 145                 return "requested feature not supported";
 146         case SSH_ERR_DEVICE_NOT_FOUND:
 147                 return "device not found";
 148         default:
 149                 return "unknown error";
 150         }
 151 }