1 /* $OpenBSD: ssherr.c,v 1.7 2017/09/12 06:32:08 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 default: 143 return "unknown error"; 144 } 145 } 146