]> andersk Git - openssh.git/blob - ssh2.h
- markus@cvs.openbsd.org 2002/01/11 13:36:43
[openssh.git] / ssh2.h
1 /*
2  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  */
24
25 /*
26  * draft-ietf-secsh-architecture-05.txt
27  *
28  *   Transport layer protocol:
29  *
30  *     1-19     Transport layer generic (e.g. disconnect, ignore, debug,
31  *              etc)
32  *     20-29    Algorithm negotiation
33  *     30-49    Key exchange method specific (numbers can be reused for
34  *              different authentication methods)
35  *
36  *   User authentication protocol:
37  *
38  *     50-59    User authentication generic
39  *     60-79    User authentication method specific (numbers can be reused
40  *              for different authentication methods)
41  *
42  *   Connection protocol:
43  *
44  *     80-89    Connection protocol generic
45  *     90-127   Channel related messages
46  *
47  *   Reserved for client protocols:
48  *
49  *     128-191  Reserved
50  *
51  *   Local extensions:
52  *
53  *     192-255  Local extensions
54  */
55 /* RCSID("$OpenBSD: ssh2.h,v 1.7 2002/01/11 13:36:43 markus Exp $"); */
56
57 /* ranges */
58
59 #define SSH2_MSG_TRANSPORT_MIN                          1
60 #define SSH2_MSG_TRANSPORT_MAX                          49
61 #define SSH2_MSG_USERAUTH_MIN                           50
62 #define SSH2_MSG_USERAUTH_MAX                           79
63 #define SSH2_MSG_CONNECTION_MIN                         80
64 #define SSH2_MSG_CONNECTION_MAX                         127
65 #define SSH2_MSG_RESERVED_MIN                           128
66 #define SSH2_MSG_RESERVED_MAX                           191
67 #define SSH2_MSG_LOCAL_MIN                              192
68 #define SSH2_MSG_LOCAL_MAX                              255
69 #define SSH2_MSG_MIN                                    1
70 #define SSH2_MSG_MAX                                    255
71
72 /* transport layer: generic */
73
74 #define SSH2_MSG_DISCONNECT                             1
75 #define SSH2_MSG_IGNORE                                 2
76 #define SSH2_MSG_UNIMPLEMENTED                          3
77 #define SSH2_MSG_DEBUG                                  4
78 #define SSH2_MSG_SERVICE_REQUEST                        5
79 #define SSH2_MSG_SERVICE_ACCEPT                         6
80
81 /* transport layer: alg negotiation */
82
83 #define SSH2_MSG_KEXINIT                                20
84 #define SSH2_MSG_NEWKEYS                                21
85
86 /* transport layer: kex specific messages, can be reused */
87
88 #define SSH2_MSG_KEXDH_INIT                             30
89 #define SSH2_MSG_KEXDH_REPLY                            31
90
91 /* dh-group-exchange */
92 #define SSH2_MSG_KEX_DH_GEX_REQUEST_OLD                 30
93 #define SSH2_MSG_KEX_DH_GEX_GROUP                       31
94 #define SSH2_MSG_KEX_DH_GEX_INIT                        32
95 #define SSH2_MSG_KEX_DH_GEX_REPLY                       33
96 #define SSH2_MSG_KEX_DH_GEX_REQUEST                     34
97
98 /* user authentication: generic */
99
100 #define SSH2_MSG_USERAUTH_REQUEST                       50
101 #define SSH2_MSG_USERAUTH_FAILURE                       51
102 #define SSH2_MSG_USERAUTH_SUCCESS                       52
103 #define SSH2_MSG_USERAUTH_BANNER                        53
104
105 /* user authentication: method specific, can be reused */
106
107 #define SSH2_MSG_USERAUTH_PK_OK                         60
108 #define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ              60
109 #define SSH2_MSG_USERAUTH_INFO_REQUEST                  60
110 #define SSH2_MSG_USERAUTH_INFO_RESPONSE                 61
111
112 /* connection protocol: generic */
113
114 #define SSH2_MSG_GLOBAL_REQUEST                         80
115 #define SSH2_MSG_REQUEST_SUCCESS                        81
116 #define SSH2_MSG_REQUEST_FAILURE                        82
117
118 /* channel related messages */
119
120 #define SSH2_MSG_CHANNEL_OPEN                           90
121 #define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION              91
122 #define SSH2_MSG_CHANNEL_OPEN_FAILURE                   92
123 #define SSH2_MSG_CHANNEL_WINDOW_ADJUST                  93
124 #define SSH2_MSG_CHANNEL_DATA                           94
125 #define SSH2_MSG_CHANNEL_EXTENDED_DATA                  95
126 #define SSH2_MSG_CHANNEL_EOF                            96
127 #define SSH2_MSG_CHANNEL_CLOSE                          97
128 #define SSH2_MSG_CHANNEL_REQUEST                        98
129 #define SSH2_MSG_CHANNEL_SUCCESS                        99
130 #define SSH2_MSG_CHANNEL_FAILURE                        100
131
132 /* disconnect reason code */
133
134 #define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT     1
135 #define SSH2_DISCONNECT_PROTOCOL_ERROR                  2
136 #define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED             3
137 #define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED      4
138 #define SSH2_DISCONNECT_RESERVED                        4
139 #define SSH2_DISCONNECT_MAC_ERROR                       5
140 #define SSH2_DISCONNECT_COMPRESSION_ERROR               6
141 #define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE           7
142 #define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED  8
143 #define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE         9
144 #define SSH2_DISCONNECT_CONNECTION_LOST                 10
145 #define SSH2_DISCONNECT_BY_APPLICATION                  11
146 #define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS            12
147 #define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER          13
148 #define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE  14
149 #define SSH2_DISCONNECT_ILLEGAL_USER_NAME               15
150
151 /* misc */
152
153 #define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED           1
154 #define SSH2_OPEN_CONNECT_FAILED                        2
155 #define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE                  3
156 #define SSH2_OPEN_RESOURCE_SHORTAGE                     4
157
158 #define SSH2_EXTENDED_DATA_STDERR                       1
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