Annotation of src/usr.bin/ssh/ssh2.h, Revision 1.22
1.22 ! djm 1: /* $OpenBSD: ssh2.h,v 1.21 2023/08/28 03:28:43 djm Exp $ */
1.8 stevesk 2:
1.1 markus 3: /*
1.4 deraadt 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: /*
1.19 dtucker 28: * RFC4251:
1.1 markus 29: *
30: * Transport layer protocol:
1.2 markus 31: *
1.1 markus 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)
1.2 markus 37: *
1.1 markus 38: * User authentication protocol:
1.2 markus 39: *
1.1 markus 40: * 50-59 User authentication generic
41: * 60-79 User authentication method specific (numbers can be reused
42: * for different authentication methods)
1.2 markus 43: *
1.1 markus 44: * Connection protocol:
1.2 markus 45: *
1.1 markus 46: * 80-89 Connection protocol generic
47: * 90-127 Channel related messages
1.2 markus 48: *
1.1 markus 49: * Reserved for client protocols:
1.2 markus 50: *
1.1 markus 51: * 128-191 Reserved
1.2 markus 52: *
1.1 markus 53: * Local extensions:
1.2 markus 54: *
1.1 markus 55: * 192-255 Local extensions
1.22 ! djm 56: * 248-255 Local extensions (OpenSSH will never use numbers in this range)
1.1 markus 57: */
1.18 markus 58:
59: /* special marker for no message */
60:
61: #define SSH_MSG_NONE 0
1.7 markus 62:
63: /* ranges */
64:
65: #define SSH2_MSG_TRANSPORT_MIN 1
66: #define SSH2_MSG_TRANSPORT_MAX 49
67: #define SSH2_MSG_USERAUTH_MIN 50
68: #define SSH2_MSG_USERAUTH_MAX 79
1.9 markus 69: #define SSH2_MSG_USERAUTH_PER_METHOD_MIN 60
70: #define SSH2_MSG_USERAUTH_PER_METHOD_MAX SSH2_MSG_USERAUTH_MAX
1.7 markus 71: #define SSH2_MSG_CONNECTION_MIN 80
72: #define SSH2_MSG_CONNECTION_MAX 127
73: #define SSH2_MSG_RESERVED_MIN 128
74: #define SSH2_MSG_RESERVED_MAX 191
75: #define SSH2_MSG_LOCAL_MIN 192
76: #define SSH2_MSG_LOCAL_MAX 255
77: #define SSH2_MSG_MIN 1
78: #define SSH2_MSG_MAX 255
1.1 markus 79:
80: /* transport layer: generic */
81:
82: #define SSH2_MSG_DISCONNECT 1
83: #define SSH2_MSG_IGNORE 2
84: #define SSH2_MSG_UNIMPLEMENTED 3
85: #define SSH2_MSG_DEBUG 4
86: #define SSH2_MSG_SERVICE_REQUEST 5
87: #define SSH2_MSG_SERVICE_ACCEPT 6
1.16 markus 88: #define SSH2_MSG_EXT_INFO 7
1.20 djm 89: #define SSH2_MSG_NEWCOMPRESS 8
1.1 markus 90:
91: /* transport layer: alg negotiation */
92:
93: #define SSH2_MSG_KEXINIT 20
94: #define SSH2_MSG_NEWKEYS 21
95:
96: /* transport layer: kex specific messages, can be reused */
97:
98: #define SSH2_MSG_KEXDH_INIT 30
99: #define SSH2_MSG_KEXDH_REPLY 31
1.5 provos 100:
101: /* dh-group-exchange */
1.6 provos 102: #define SSH2_MSG_KEX_DH_GEX_REQUEST_OLD 30
1.5 provos 103: #define SSH2_MSG_KEX_DH_GEX_GROUP 31
104: #define SSH2_MSG_KEX_DH_GEX_INIT 32
105: #define SSH2_MSG_KEX_DH_GEX_REPLY 33
1.6 provos 106: #define SSH2_MSG_KEX_DH_GEX_REQUEST 34
1.14 djm 107:
108: /* ecdh */
109: #define SSH2_MSG_KEX_ECDH_INIT 30
110: #define SSH2_MSG_KEX_ECDH_REPLY 31
1.21 djm 111:
112: /* transport layer: OpenSSH extensions */
113: #define SSH2_MSG_PING 192
114: #define SSH2_MSG_PONG 193
1.1 markus 115:
116: /* user authentication: generic */
117:
118: #define SSH2_MSG_USERAUTH_REQUEST 50
119: #define SSH2_MSG_USERAUTH_FAILURE 51
120: #define SSH2_MSG_USERAUTH_SUCCESS 52
121: #define SSH2_MSG_USERAUTH_BANNER 53
122:
123: /* user authentication: method specific, can be reused */
124:
125: #define SSH2_MSG_USERAUTH_PK_OK 60
126: #define SSH2_MSG_USERAUTH_PASSWD_CHANGEREQ 60
127: #define SSH2_MSG_USERAUTH_INFO_REQUEST 60
128: #define SSH2_MSG_USERAUTH_INFO_RESPONSE 61
129:
130: /* connection protocol: generic */
131:
132: #define SSH2_MSG_GLOBAL_REQUEST 80
133: #define SSH2_MSG_REQUEST_SUCCESS 81
134: #define SSH2_MSG_REQUEST_FAILURE 82
135:
136: /* channel related messages */
137:
138: #define SSH2_MSG_CHANNEL_OPEN 90
139: #define SSH2_MSG_CHANNEL_OPEN_CONFIRMATION 91
140: #define SSH2_MSG_CHANNEL_OPEN_FAILURE 92
141: #define SSH2_MSG_CHANNEL_WINDOW_ADJUST 93
142: #define SSH2_MSG_CHANNEL_DATA 94
143: #define SSH2_MSG_CHANNEL_EXTENDED_DATA 95
144: #define SSH2_MSG_CHANNEL_EOF 96
145: #define SSH2_MSG_CHANNEL_CLOSE 97
146: #define SSH2_MSG_CHANNEL_REQUEST 98
147: #define SSH2_MSG_CHANNEL_SUCCESS 99
148: #define SSH2_MSG_CHANNEL_FAILURE 100
149:
150: /* disconnect reason code */
151:
152: #define SSH2_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT 1
153: #define SSH2_DISCONNECT_PROTOCOL_ERROR 2
154: #define SSH2_DISCONNECT_KEY_EXCHANGE_FAILED 3
155: #define SSH2_DISCONNECT_HOST_AUTHENTICATION_FAILED 4
1.3 markus 156: #define SSH2_DISCONNECT_RESERVED 4
1.1 markus 157: #define SSH2_DISCONNECT_MAC_ERROR 5
158: #define SSH2_DISCONNECT_COMPRESSION_ERROR 6
159: #define SSH2_DISCONNECT_SERVICE_NOT_AVAILABLE 7
160: #define SSH2_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED 8
161: #define SSH2_DISCONNECT_HOST_KEY_NOT_VERIFIABLE 9
162: #define SSH2_DISCONNECT_CONNECTION_LOST 10
163: #define SSH2_DISCONNECT_BY_APPLICATION 11
1.3 markus 164: #define SSH2_DISCONNECT_TOO_MANY_CONNECTIONS 12
165: #define SSH2_DISCONNECT_AUTH_CANCELLED_BY_USER 13
166: #define SSH2_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE 14
167: #define SSH2_DISCONNECT_ILLEGAL_USER_NAME 15
1.1 markus 168:
169: /* misc */
170:
171: #define SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED 1
172: #define SSH2_OPEN_CONNECT_FAILED 2
173: #define SSH2_OPEN_UNKNOWN_CHANNEL_TYPE 3
174: #define SSH2_OPEN_RESOURCE_SHORTAGE 4
175:
176: #define SSH2_EXTENDED_DATA_STDERR 1
1.11 djm 177:
1.13 djm 178: /* Certificate types for OpenSSH certificate keys extension */
179: #define SSH2_CERT_TYPE_USER 1
180: #define SSH2_CERT_TYPE_HOST 2
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