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      1 /*	$OpenBSD: ssh2.h,v 1.8 2002/03/04 17:27:39 stevesk Exp $	*/
      2 
      3 #ifndef	_SSH2_H
      4 #define	_SSH2_H
      5 
      6 #pragma ident	"%Z%%M%	%I%	%E% SMI"
      7 
      8 #ifdef __cplusplus
      9 extern "C" {
     10 #endif
     11 
     12 
     13 /*
     14  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
     15  *
     16  * Redistribution and use in source and binary forms, with or without
     17  * modification, are permitted provided that the following conditions
     18  * are met:
     19  * 1. Redistributions of source code must retain the above copyright
     20  *    notice, this list of conditions and the following disclaimer.
     21  * 2. Redistributions in binary form must reproduce the above copyright
     22  *    notice, this list of conditions and the following disclaimer in the
     23  *    documentation and/or other materials provided with the distribution.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     28  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     31  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     34  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     35  */
     36 /*
     37  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
     38  * Use is subject to license terms.
     39  */
     40 
     41 /*
     42  * draft-ietf-secsh-architecture-05.txt
     43  *
     44  *   Transport layer protocol:
     45  *
     46  *     1-19     Transport layer generic (e.g. disconnect, ignore, debug,
     47  *              etc)
     48  *     20-29    Algorithm negotiation
     49  *     30-49    Key exchange method specific (numbers can be reused for
     50  *              different authentication methods)
     51  *
     52  *   User authentication protocol:
     53  *
     54  *     50-59    User authentication generic
     55  *     60-79    User authentication method specific (numbers can be reused
     56  *              for different authentication methods)
     57  *
     58  *   Connection protocol:
     59  *
     60  *     80-89    Connection protocol generic
     61  *     90-127   Channel related messages
     62  *
     63  *   Reserved for client protocols:
     64  *
     65  *     128-191  Reserved
     66  *
     67  *   Local extensions:
     68  *
     69  *     192-255  Local extensions
     70  */
     71 
     72 /* ranges */
     73 
     74 #define SSH2_MSG_TRANSPORT_MIN				1
     75 #define SSH2_MSG_TRANSPORT_MAX				49
     76 #define SSH2_MSG_USERAUTH_MIN				50
     77 #define SSH2_MSG_USERAUTH_MAX				79
     78 #define SSH2_MSG_CONNECTION_MIN				80
     79 #define SSH2_MSG_CONNECTION_MAX				127
     80 #define SSH2_MSG_RESERVED_MIN				128
     81 #define SSH2_MSG_RESERVED_MAX				191
     82 #define SSH2_MSG_LOCAL_MIN				192
     83 #define SSH2_MSG_LOCAL_MAX				255
     84 #define SSH2_MSG_MIN					1
     85 #define SSH2_MSG_MAX					255
     86 
     87 /* transport layer: generic */
     88 
     89 #define SSH2_MSG_DISCONNECT				1
     90 #define SSH2_MSG_IGNORE					2
     91 #define SSH2_MSG_UNIMPLEMENTED				3
     92 #define SSH2_MSG_DEBUG					4
     93 #define SSH2_MSG_SERVICE_REQUEST			5
     94 #define SSH2_MSG_SERVICE_ACCEPT				6
     95 
     96 /* transport layer: alg negotiation */
     97 
     98 #define SSH2_MSG_KEXINIT				20
     99 #define SSH2_MSG_NEWKEYS				21
    100 
    101 /* transport layer: kex specific messages, can be reused */
    102 
    103 #define SSH2_MSG_KEXDH_INIT				30
    104 #define SSH2_MSG_KEXDH_REPLY				31
    105 
    106 /* dh-group-exchange */
    107 #define SSH2_MSG_KEX_DH_GEX_REQUEST_OLD			30
    108 #define SSH2_MSG_KEX_DH_GEX_GROUP			31
    109 #define SSH2_MSG_KEX_DH_GEX_INIT			32
    110 #define SSH2_MSG_KEX_DH_GEX_REPLY			33
    111 #define SSH2_MSG_KEX_DH_GEX_REQUEST			34
    112 
    113 /* user authentication: generic */
    114 
    115 #define SSH2_MSG_USERAUTH_REQUEST			50
    116 #define SSH2_MSG_USERAUTH_FAILURE			51
    117 #define SSH2_MSG_USERAUTH_SUCCESS			52
    118 #define SSH2_MSG_USERAUTH_BANNER			53
    119 
    120 /* user authentication: method specific, can be reused */
    121 
    122 #define SSH2_MSG_USERAUTH_PK_OK				60
    123 #define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ		60
    124 #define SSH2_MSG_USERAUTH_INFO_REQUEST			60
    125 #define SSH2_MSG_USERAUTH_INFO_RESPONSE			61
    126 
    127 /* connection protocol: generic */
    128 
    129 #define SSH2_MSG_GLOBAL_REQUEST				80
    130 #define SSH2_MSG_REQUEST_SUCCESS			81
    131 #define SSH2_MSG_REQUEST_FAILURE			82
    132 
    133 /* channel related messages */
    134 
    135 #define SSH2_MSG_CHANNEL_OPEN				90
    136 #define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION		91
    137 #define SSH2_MSG_CHANNEL_OPEN_FAILURE			92
    138 #define SSH2_MSG_CHANNEL_WINDOW_ADJUST			93
    139 #define SSH2_MSG_CHANNEL_DATA				94
    140 #define SSH2_MSG_CHANNEL_EXTENDED_DATA			95
    141 #define SSH2_MSG_CHANNEL_EOF				96
    142 #define SSH2_MSG_CHANNEL_CLOSE				97
    143 #define SSH2_MSG_CHANNEL_REQUEST			98
    144 #define SSH2_MSG_CHANNEL_SUCCESS			99
    145 #define SSH2_MSG_CHANNEL_FAILURE			100
    146 
    147 /* ALTPRIVSEP */
    148 #ifdef ALTPRIVSEP
    149 #define SSH2_PRIV_MSG_ALTPRIVSEP			254
    150 #endif /* ALTPRIVSEP */
    151 
    152 /* disconnect reason code */
    153 
    154 #define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT	1
    155 #define SSH2_DISCONNECT_PROTOCOL_ERROR			2
    156 #define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED		3
    157 #define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED	4
    158 #define SSH2_DISCONNECT_RESERVED			4
    159 #define SSH2_DISCONNECT_MAC_ERROR			5
    160 #define SSH2_DISCONNECT_COMPRESSION_ERROR		6
    161 #define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE		7
    162 #define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED	8
    163 #define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE		9
    164 #define SSH2_DISCONNECT_CONNECTION_LOST			10
    165 #define SSH2_DISCONNECT_BY_APPLICATION			11
    166 #define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS		12
    167 #define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER		13
    168 #define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE	14
    169 #define SSH2_DISCONNECT_ILLEGAL_USER_NAME		15
    170 
    171 /* misc */
    172 
    173 #define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED		1
    174 #define SSH2_OPEN_CONNECT_FAILED			2
    175 #define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE			3
    176 #define SSH2_OPEN_RESOURCE_SHORTAGE			4
    177 
    178 #define SSH2_EXTENDED_DATA_STDERR			1
    179 
    180 #ifdef __cplusplus
    181 }
    182 #endif
    183 
    184 #endif /* _SSH2_H */
    185