ssh2.h revision 264377
1/* $OpenBSD: ssh2.h,v 1.15 2014/01/29 06:18:35 djm 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/* ranges */
59
60#define SSH2_MSG_TRANSPORT_MIN				1
61#define SSH2_MSG_TRANSPORT_MAX				49
62#define SSH2_MSG_USERAUTH_MIN				50
63#define SSH2_MSG_USERAUTH_MAX				79
64#define SSH2_MSG_USERAUTH_PER_METHOD_MIN		60
65#define SSH2_MSG_USERAUTH_PER_METHOD_MAX		SSH2_MSG_USERAUTH_MAX
66#define SSH2_MSG_CONNECTION_MIN				80
67#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
119/* connection protocol: generic */
120
121#define SSH2_MSG_GLOBAL_REQUEST				80
122#define SSH2_MSG_REQUEST_SUCCESS			81
123#define SSH2_MSG_REQUEST_FAILURE			82
124
125/* channel related messages */
126
127#define SSH2_MSG_CHANNEL_OPEN				90
128#define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION		91
129#define SSH2_MSG_CHANNEL_OPEN_FAILURE			92
130#define SSH2_MSG_CHANNEL_WINDOW_ADJUST			93
131#define SSH2_MSG_CHANNEL_DATA				94
132#define SSH2_MSG_CHANNEL_EXTENDED_DATA			95
133#define SSH2_MSG_CHANNEL_EOF				96
134#define SSH2_MSG_CHANNEL_CLOSE				97
135#define SSH2_MSG_CHANNEL_REQUEST			98
136#define SSH2_MSG_CHANNEL_SUCCESS			99
137#define SSH2_MSG_CHANNEL_FAILURE			100
138
139/* disconnect reason code */
140
141#define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT	1
142#define SSH2_DISCONNECT_PROTOCOL_ERROR			2
143#define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED		3
144#define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED	4
145#define SSH2_DISCONNECT_RESERVED			4
146#define SSH2_DISCONNECT_MAC_ERROR			5
147#define SSH2_DISCONNECT_COMPRESSION_ERROR		6
148#define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE		7
149#define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED	8
150#define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE		9
151#define SSH2_DISCONNECT_CONNECTION_LOST			10
152#define SSH2_DISCONNECT_BY_APPLICATION			11
153#define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS		12
154#define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER		13
155#define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE	14
156#define SSH2_DISCONNECT_ILLEGAL_USER_NAME		15
157
158/* misc */
159
160#define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED		1
161#define SSH2_OPEN_CONNECT_FAILED			2
162#define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE			3
163#define SSH2_OPEN_RESOURCE_SHORTAGE			4
164
165#define SSH2_EXTENDED_DATA_STDERR			1
166
167/* kex messages for resume@appgate.com */
168#define SSH2_MSG_KEX_ROAMING_RESUME			30
169#define SSH2_MSG_KEX_ROAMING_AUTH_REQUIRED		31
170#define SSH2_MSG_KEX_ROAMING_AUTH			32
171#define SSH2_MSG_KEX_ROAMING_AUTH_OK			33
172#define SSH2_MSG_KEX_ROAMING_AUTH_FAIL			34
173
174/* Certificate types for OpenSSH certificate keys extension */
175#define SSH2_CERT_TYPE_USER				1
176#define SSH2_CERT_TYPE_HOST				2
177