1 /* $OpenBSD: ssh2.h,v 1.18 2016/05/04 14:22:33 markus Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Markus Friedl. 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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 /* 28 * draft-ietf-secsh-architecture-05.txt 29 * 30 * Transport layer protocol: 31 * 32 * 1-19 Transport layer generic (e.g. disconnect, ignore, debug, 33 * etc) 34 * 20-29 Algorithm negotiation 35 * 30-49 Key exchange method specific (numbers can be reused for 36 * different authentication methods) 37 * 38 * User authentication protocol: 39 * 40 * 50-59 User authentication generic 41 * 60-79 User authentication method specific (numbers can be reused 42 * for different authentication methods) 43 * 44 * Connection protocol: 45 * 46 * 80-89 Connection protocol generic 47 * 90-127 Channel related messages 48 * 49 * Reserved for client protocols: 50 * 51 * 128-191 Reserved 52 * 53 * Local extensions: 54 * 55 * 192-255 Local extensions 56 */ 57 58 /* special marker for no message */ 59 60 #define SSH_MSG_NONE 0 61 62 /* ranges */ 63 64 #define SSH2_MSG_TRANSPORT_MIN 1 65 #define SSH2_MSG_TRANSPORT_MAX 49 66 #define SSH2_MSG_USERAUTH_MIN 50 67 #define SSH2_MSG_USERAUTH_MAX 79 68 #define SSH2_MSG_USERAUTH_PER_METHOD_MIN 60 69 #define SSH2_MSG_USERAUTH_PER_METHOD_MAX SSH2_MSG_USERAUTH_MAX 70 #define SSH2_MSG_CONNECTION_MIN 80 71 #define SSH2_MSG_CONNECTION_MAX 127 72 #define SSH2_MSG_RESERVED_MIN 128 73 #define SSH2_MSG_RESERVED_MAX 191 74 #define SSH2_MSG_LOCAL_MIN 192 75 #define SSH2_MSG_LOCAL_MAX 255 76 #define SSH2_MSG_MIN 1 77 #define SSH2_MSG_MAX 255 78 79 /* transport layer: generic */ 80 81 #define SSH2_MSG_DISCONNECT 1 82 #define SSH2_MSG_IGNORE 2 83 #define SSH2_MSG_UNIMPLEMENTED 3 84 #define SSH2_MSG_DEBUG 4 85 #define SSH2_MSG_SERVICE_REQUEST 5 86 #define SSH2_MSG_SERVICE_ACCEPT 6 87 #define SSH2_MSG_EXT_INFO 7 88 89 /* transport layer: alg negotiation */ 90 91 #define SSH2_MSG_KEXINIT 20 92 #define SSH2_MSG_NEWKEYS 21 93 94 /* transport layer: kex specific messages, can be reused */ 95 96 #define SSH2_MSG_KEXDH_INIT 30 97 #define SSH2_MSG_KEXDH_REPLY 31 98 99 /* dh-group-exchange */ 100 #define SSH2_MSG_KEX_DH_GEX_REQUEST_OLD 30 101 #define SSH2_MSG_KEX_DH_GEX_GROUP 31 102 #define SSH2_MSG_KEX_DH_GEX_INIT 32 103 #define SSH2_MSG_KEX_DH_GEX_REPLY 33 104 #define SSH2_MSG_KEX_DH_GEX_REQUEST 34 105 106 /* ecdh */ 107 #define SSH2_MSG_KEX_ECDH_INIT 30 108 #define SSH2_MSG_KEX_ECDH_REPLY 31 109 110 /* user authentication: generic */ 111 112 #define SSH2_MSG_USERAUTH_REQUEST 50 113 #define SSH2_MSG_USERAUTH_FAILURE 51 114 #define SSH2_MSG_USERAUTH_SUCCESS 52 115 #define SSH2_MSG_USERAUTH_BANNER 53 116 117 /* user authentication: method specific, can be reused */ 118 119 #define SSH2_MSG_USERAUTH_PK_OK 60 120 #define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ 60 121 #define SSH2_MSG_USERAUTH_INFO_REQUEST 60 122 #define SSH2_MSG_USERAUTH_INFO_RESPONSE 61 123 124 /* connection protocol: generic */ 125 126 #define SSH2_MSG_GLOBAL_REQUEST 80 127 #define SSH2_MSG_REQUEST_SUCCESS 81 128 #define SSH2_MSG_REQUEST_FAILURE 82 129 130 /* channel related messages */ 131 132 #define SSH2_MSG_CHANNEL_OPEN 90 133 #define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION 91 134 #define SSH2_MSG_CHANNEL_OPEN_FAILURE 92 135 #define SSH2_MSG_CHANNEL_WINDOW_ADJUST 93 136 #define SSH2_MSG_CHANNEL_DATA 94 137 #define SSH2_MSG_CHANNEL_EXTENDED_DATA 95 138 #define SSH2_MSG_CHANNEL_EOF 96 139 #define SSH2_MSG_CHANNEL_CLOSE 97 140 #define SSH2_MSG_CHANNEL_REQUEST 98 141 #define SSH2_MSG_CHANNEL_SUCCESS 99 142 #define SSH2_MSG_CHANNEL_FAILURE 100 143 144 /* disconnect reason code */ 145 146 #define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT 1 147 #define SSH2_DISCONNECT_PROTOCOL_ERROR 2 148 #define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED 3 149 #define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED 4 150 #define SSH2_DISCONNECT_RESERVED 4 151 #define SSH2_DISCONNECT_MAC_ERROR 5 152 #define SSH2_DISCONNECT_COMPRESSION_ERROR 6 153 #define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE 7 154 #define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED 8 155 #define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE 9 156 #define SSH2_DISCONNECT_CONNECTION_LOST 10 157 #define SSH2_DISCONNECT_BY_APPLICATION 11 158 #define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS 12 159 #define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER 13 160 #define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE 14 161 #define SSH2_DISCONNECT_ILLEGAL_USER_NAME 15 162 163 /* misc */ 164 165 #define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED 1 166 #define SSH2_OPEN_CONNECT_FAILED 2 167 #define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE 3 168 #define SSH2_OPEN_RESOURCE_SHORTAGE 4 169 170 #define SSH2_EXTENDED_DATA_STDERR 1 171 172 /* Certificate types for OpenSSH certificate keys extension */ 173 #define SSH2_CERT_TYPE_USER 1 174 #define SSH2_CERT_TYPE_HOST 2 175