ssh2.h revision 221420 
1219820Sjeff/* $OpenBSD: ssh2.h,v 1.14 2010/08/31 11:54:45 djm Exp $ */
2219820Sjeff
3219820Sjeff/*
4219820Sjeff * Copyright (c) 2000 Markus Friedl.  All rights reserved.
5219820Sjeff *
6219820Sjeff * Redistribution and use in source and binary forms, with or without
7219820Sjeff * modification, are permitted provided that the following conditions
8219820Sjeff * are met:
9219820Sjeff * 1. Redistributions of source code must retain the above copyright
10219820Sjeff *    notice, this list of conditions and the following disclaimer.
11219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright
12219820Sjeff *    notice, this list of conditions and the following disclaimer in the
13219820Sjeff *    documentation and/or other materials provided with the distribution.
14219820Sjeff *
15219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25219820Sjeff */
26219820Sjeff
27219820Sjeff/*
28219820Sjeff * draft-ietf-secsh-architecture-05.txt
29219820Sjeff *
30219820Sjeff *   Transport layer protocol:
31219820Sjeff *
32219820Sjeff *     1-19     Transport layer generic (e.g. disconnect, ignore, debug,
33219820Sjeff *              etc)
34219820Sjeff *     20-29    Algorithm negotiation
35219820Sjeff *     30-49    Key exchange method specific (numbers can be reused for
36219820Sjeff *              different authentication methods)
37219820Sjeff *
38219820Sjeff *   User authentication protocol:
39219820Sjeff *
40219820Sjeff *     50-59    User authentication generic
41219820Sjeff *     60-79    User authentication method specific (numbers can be reused
42219820Sjeff *              for different authentication methods)
43219820Sjeff *
44219820Sjeff *   Connection protocol:
45219820Sjeff *
46219820Sjeff *     80-89    Connection protocol generic
47219820Sjeff *     90-127   Channel related messages
48219820Sjeff *
49219820Sjeff *   Reserved for client protocols:
50219820Sjeff *
51219820Sjeff *     128-191  Reserved
52219820Sjeff *
53219820Sjeff *   Local extensions:
54219820Sjeff *
55219820Sjeff *     192-255  Local extensions
56219820Sjeff */
57219820Sjeff
58219820Sjeff/* ranges */
59219820Sjeff
60219820Sjeff#define SSH2_MSG_TRANSPORT_MIN				1
61219820Sjeff#define SSH2_MSG_TRANSPORT_MAX				49
62219820Sjeff#define SSH2_MSG_USERAUTH_MIN				50
63219820Sjeff#define SSH2_MSG_USERAUTH_MAX				79
64219820Sjeff#define SSH2_MSG_USERAUTH_PER_METHOD_MIN		60
65219820Sjeff#define SSH2_MSG_USERAUTH_PER_METHOD_MAX		SSH2_MSG_USERAUTH_MAX
66219820Sjeff#define SSH2_MSG_CONNECTION_MIN				80
67219820Sjeff#define SSH2_MSG_CONNECTION_MAX				127
68#define SSH2_MSG_RESERVED_MIN				128
69#define SSH2_MSG_RESERVED_MAX				191
70#define SSH2_MSG_LOCAL_MIN				192
71#define SSH2_MSG_LOCAL_MAX				255
72#define SSH2_MSG_MIN					1
73#define SSH2_MSG_MAX					255
74
75/* transport layer: generic */
76
77#define SSH2_MSG_DISCONNECT				1
78#define SSH2_MSG_IGNORE					2
79#define SSH2_MSG_UNIMPLEMENTED				3
80#define SSH2_MSG_DEBUG					4
81#define SSH2_MSG_SERVICE_REQUEST			5
82#define SSH2_MSG_SERVICE_ACCEPT				6
83
84/* transport layer: alg negotiation */
85
86#define SSH2_MSG_KEXINIT				20
87#define SSH2_MSG_NEWKEYS				21
88
89/* transport layer: kex specific messages, can be reused */
90
91#define SSH2_MSG_KEXDH_INIT				30
92#define SSH2_MSG_KEXDH_REPLY				31
93
94/* dh-group-exchange */
95#define SSH2_MSG_KEX_DH_GEX_REQUEST_OLD			30
96#define SSH2_MSG_KEX_DH_GEX_GROUP			31
97#define SSH2_MSG_KEX_DH_GEX_INIT			32
98#define SSH2_MSG_KEX_DH_GEX_REPLY			33
99#define SSH2_MSG_KEX_DH_GEX_REQUEST			34
100
101/* ecdh */
102#define SSH2_MSG_KEX_ECDH_INIT				30
103#define SSH2_MSG_KEX_ECDH_REPLY				31
104
105/* user authentication: generic */
106
107#define SSH2_MSG_USERAUTH_REQUEST			50
108#define SSH2_MSG_USERAUTH_FAILURE			51
109#define SSH2_MSG_USERAUTH_SUCCESS			52
110#define SSH2_MSG_USERAUTH_BANNER			53
111
112/* user authentication: method specific, can be reused */
113
114#define SSH2_MSG_USERAUTH_PK_OK				60
115#define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ		60
116#define SSH2_MSG_USERAUTH_INFO_REQUEST			60
117#define SSH2_MSG_USERAUTH_INFO_RESPONSE			61
118#define SSH2_MSG_USERAUTH_JPAKE_CLIENT_STEP1		60
119#define SSH2_MSG_USERAUTH_JPAKE_SERVER_STEP1		61
120#define SSH2_MSG_USERAUTH_JPAKE_CLIENT_STEP2		62
121#define SSH2_MSG_USERAUTH_JPAKE_SERVER_STEP2		63
122#define SSH2_MSG_USERAUTH_JPAKE_CLIENT_CONFIRM		64
123#define SSH2_MSG_USERAUTH_JPAKE_SERVER_CONFIRM		65
124
125/* connection protocol: generic */
126
127#define SSH2_MSG_GLOBAL_REQUEST				80
128#define SSH2_MSG_REQUEST_SUCCESS			81
129#define SSH2_MSG_REQUEST_FAILURE			82
130
131/* channel related messages */
132
133#define SSH2_MSG_CHANNEL_OPEN				90
134#define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION		91
135#define SSH2_MSG_CHANNEL_OPEN_FAILURE			92
136#define SSH2_MSG_CHANNEL_WINDOW_ADJUST			93
137#define SSH2_MSG_CHANNEL_DATA				94
138#define SSH2_MSG_CHANNEL_EXTENDED_DATA			95
139#define SSH2_MSG_CHANNEL_EOF				96
140#define SSH2_MSG_CHANNEL_CLOSE				97
141#define SSH2_MSG_CHANNEL_REQUEST			98
142#define SSH2_MSG_CHANNEL_SUCCESS			99
143#define SSH2_MSG_CHANNEL_FAILURE			100
144
145/* disconnect reason code */
146
147#define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT	1
148#define SSH2_DISCONNECT_PROTOCOL_ERROR			2
149#define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED		3
150#define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED	4
151#define SSH2_DISCONNECT_RESERVED			4
152#define SSH2_DISCONNECT_MAC_ERROR			5
153#define SSH2_DISCONNECT_COMPRESSION_ERROR		6
154#define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE		7
155#define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED	8
156#define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE		9
157#define SSH2_DISCONNECT_CONNECTION_LOST			10
158#define SSH2_DISCONNECT_BY_APPLICATION			11
159#define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS		12
160#define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER		13
161#define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE	14
162#define SSH2_DISCONNECT_ILLEGAL_USER_NAME		15
163
164/* misc */
165
166#define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED		1
167#define SSH2_OPEN_CONNECT_FAILED			2
168#define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE			3
169#define SSH2_OPEN_RESOURCE_SHORTAGE			4
170
171#define SSH2_EXTENDED_DATA_STDERR			1
172
173/* kex messages for resume@appgate.com */
174#define SSH2_MSG_KEX_ROAMING_RESUME			30
175#define SSH2_MSG_KEX_ROAMING_AUTH_REQUIRED		31
176#define SSH2_MSG_KEX_ROAMING_AUTH			32
177#define SSH2_MSG_KEX_ROAMING_AUTH_OK			33
178#define SSH2_MSG_KEX_ROAMING_AUTH_FAIL			34
179
180/* Certificate types for OpenSSH certificate keys extension */
181#define SSH2_CERT_TYPE_USER				1
182#define SSH2_CERT_TYPE_HOST				2
183