/* $NetBSD: ssh2.h,v 1.12.2.1 2023/12/25 12:31:09 martin Exp $ */ /* $OpenBSD: ssh2.h,v 1.22 2023/10/10 03:57:45 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * RFC4251: * * Transport layer protocol: * * 1-19 Transport layer generic (e.g. disconnect, ignore, debug, * etc) * 20-29 Algorithm negotiation * 30-49 Key exchange method specific (numbers can be reused for * different authentication methods) * * User authentication protocol: * * 50-59 User authentication generic * 60-79 User authentication method specific (numbers can be reused * for different authentication methods) * * Connection protocol: * * 80-89 Connection protocol generic * 90-127 Channel related messages * * Reserved for client protocols: * * 128-191 Reserved * * Local extensions: * * 192-255 Local extensions * 248-255 Local extensions (OpenSSH will never use numbers in this range) */ /* special marker for no message */ #define SSH_MSG_NONE 0 /* ranges */ #define SSH2_MSG_TRANSPORT_MIN 1 #define SSH2_MSG_TRANSPORT_MAX 49 #define SSH2_MSG_USERAUTH_MIN 50 #define SSH2_MSG_USERAUTH_MAX 79 #define SSH2_MSG_USERAUTH_PER_METHOD_MIN 60 #define SSH2_MSG_USERAUTH_PER_METHOD_MAX SSH2_MSG_USERAUTH_MAX #define SSH2_MSG_CONNECTION_MIN 80 #define SSH2_MSG_CONNECTION_MAX 127 #define SSH2_MSG_RESERVED_MIN 128 #define SSH2_MSG_RESERVED_MAX 191 #define SSH2_MSG_LOCAL_MIN 192 #define SSH2_MSG_LOCAL_MAX 255 #define SSH2_MSG_MIN 1 #define SSH2_MSG_MAX 255 /* transport layer: generic */ #define SSH2_MSG_DISCONNECT 1 #define SSH2_MSG_IGNORE 2 #define SSH2_MSG_UNIMPLEMENTED 3 #define SSH2_MSG_DEBUG 4 #define SSH2_MSG_SERVICE_REQUEST 5 #define SSH2_MSG_SERVICE_ACCEPT 6 #define SSH2_MSG_EXT_INFO 7 #define SSH2_MSG_NEWCOMPRESS 8 /* transport layer: alg negotiation */ #define SSH2_MSG_KEXINIT 20 #define SSH2_MSG_NEWKEYS 21 /* transport layer: kex specific messages, can be reused */ #define SSH2_MSG_KEXDH_INIT 30 #define SSH2_MSG_KEXDH_REPLY 31 /* dh-group-exchange */ #define SSH2_MSG_KEX_DH_GEX_REQUEST_OLD 30 #define SSH2_MSG_KEX_DH_GEX_GROUP 31 #define SSH2_MSG_KEX_DH_GEX_INIT 32 #define SSH2_MSG_KEX_DH_GEX_REPLY 33 #define SSH2_MSG_KEX_DH_GEX_REQUEST 34 /* ecdh */ #define SSH2_MSG_KEX_ECDH_INIT 30 #define SSH2_MSG_KEX_ECDH_REPLY 31 /* transport layer: OpenSSH extensions */ #define SSH2_MSG_PING 192 #define SSH2_MSG_PONG 193 /* user authentication: generic */ #define SSH2_MSG_USERAUTH_REQUEST 50 #define SSH2_MSG_USERAUTH_FAILURE 51 #define SSH2_MSG_USERAUTH_SUCCESS 52 #define SSH2_MSG_USERAUTH_BANNER 53 /* user authentication: method specific, can be reused */ #define SSH2_MSG_USERAUTH_PK_OK 60 #define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ 60 #define SSH2_MSG_USERAUTH_INFO_REQUEST 60 #define SSH2_MSG_USERAUTH_INFO_RESPONSE 61 /* connection protocol: generic */ #define SSH2_MSG_GLOBAL_REQUEST 80 #define SSH2_MSG_REQUEST_SUCCESS 81 #define SSH2_MSG_REQUEST_FAILURE 82 /* channel related messages */ #define SSH2_MSG_CHANNEL_OPEN 90 #define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION 91 #define SSH2_MSG_CHANNEL_OPEN_FAILURE 92 #define SSH2_MSG_CHANNEL_WINDOW_ADJUST 93 #define SSH2_MSG_CHANNEL_DATA 94 #define SSH2_MSG_CHANNEL_EXTENDED_DATA 95 #define SSH2_MSG_CHANNEL_EOF 96 #define SSH2_MSG_CHANNEL_CLOSE 97 #define SSH2_MSG_CHANNEL_REQUEST 98 #define SSH2_MSG_CHANNEL_SUCCESS 99 #define SSH2_MSG_CHANNEL_FAILURE 100 /* disconnect reason code */ #define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT 1 #define SSH2_DISCONNECT_PROTOCOL_ERROR 2 #define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED 3 #define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED 4 #define SSH2_DISCONNECT_RESERVED 4 #define SSH2_DISCONNECT_MAC_ERROR 5 #define SSH2_DISCONNECT_COMPRESSION_ERROR 6 #define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE 7 #define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED 8 #define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE 9 #define SSH2_DISCONNECT_CONNECTION_LOST 10 #define SSH2_DISCONNECT_BY_APPLICATION 11 #define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS 12 #define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER 13 #define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE 14 #define SSH2_DISCONNECT_ILLEGAL_USER_NAME 15 /* misc */ #define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED 1 #define SSH2_OPEN_CONNECT_FAILED 2 #define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE 3 #define SSH2_OPEN_RESOURCE_SHORTAGE 4 #define SSH2_EXTENDED_DATA_STDERR 1 /* Certificate types for OpenSSH certificate keys extension */ #define SSH2_CERT_TYPE_USER 1 #define SSH2_CERT_TYPE_HOST 2