1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2005-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
%%
%%% Description : SSH connection protocol
-define(DEFAULT_PACKET_SIZE, 32768).
-define(DEFAULT_WINDOW_SIZE, 2*?DEFAULT_PACKET_SIZE).
-define(DEFAULT_TIMEOUT, 5000).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% CONNECT messages
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%----------------------------------------------------------------------
%%% # SSH_MSG_xxx
%%% Description: Packet types used by the connection protocol.
%%%----------------------------------------------------------------------
-define(SSH_MSG_GLOBAL_REQUEST, 80).
-define(SSH_MSG_REQUEST_SUCCESS, 81).
-define(SSH_MSG_REQUEST_FAILURE, 82).
-define(SSH_MSG_CHANNEL_OPEN, 90).
-define(SSH_MSG_CHANNEL_OPEN_CONFIRMATION, 91).
-define(SSH_MSG_CHANNEL_OPEN_FAILURE, 92).
-define(SSH_MSG_CHANNEL_WINDOW_ADJUST, 93).
-define(SSH_MSG_CHANNEL_DATA, 94).
-define(SSH_MSG_CHANNEL_EXTENDED_DATA, 95).
-define(SSH_MSG_CHANNEL_EOF, 96).
-define(SSH_MSG_CHANNEL_CLOSE, 97).
-define(SSH_MSG_CHANNEL_REQUEST, 98).
-define(SSH_MSG_CHANNEL_SUCCESS, 99).
-define(SSH_MSG_CHANNEL_FAILURE, 100).
-record(ssh_msg_global_request,
{
name,
want_reply,
data %% ...
}).
-record(ssh_msg_request_success,
{
data %% ...
}).
-record(ssh_msg_request_failure,
{
}).
-record(ssh_msg_channel_open,
{
channel_type,
sender_channel,
initial_window_size,
maximum_packet_size,
data %% ...
}).
-record(ssh_msg_channel_open_confirmation,
{
recipient_channel,
sender_channel,
initial_window_size,
maximum_packet_size,
data %% ...
}).
%%%----------------------------------------------------------------------
%%% # SSH_OPEN_xxx
%%% Description: Reason codes for SSH_MSG_OPEN_FAILURE packages.
%%%----------------------------------------------------------------------
-define(SSH_OPEN_ADMINISTRATIVELY_PROHIBITED, 1).
-define(SSH_OPEN_CONNECT_FAILED, 2).
-define(SSH_OPEN_UNKNOWN_CHANNEL_TYPE, 3).
-define(SSH_OPEN_RESOURCE_SHORTAGE, 4).
-record(ssh_msg_channel_open_failure,
{
recipient_channel,
reason,
description,
lang
}).
-record(ssh_msg_channel_window_adjust,
{
recipient_channel,
bytes_to_add
}).
-record(ssh_msg_channel_data,
{
recipient_channel,
data
}).
%%%----------------------------------------------------------------------
%%% # SSH_EXTENDED_DATA_xxx
%%% Description: Type codes for SSH_MSG_CHANNEL_EXTENDED_DATA packages
%%%----------------------------------------------------------------------
-define(SSH_EXTENDED_DATA_DEFAULT, 0).
-define(SSH_EXTENDED_DATA_STDERR, 1).
-record(ssh_msg_channel_extended_data,
{
recipient_channel,
data_type_code,
data
}).
-record(ssh_msg_channel_eof,
{
recipient_channel
}).
-record(ssh_msg_channel_close,
{
recipient_channel
}).
-record(ssh_msg_channel_request,
{
recipient_channel,
request_type,
want_reply,
data %% ...
}).
-record(ssh_msg_channel_success,
{
recipient_channel
}).
-record(ssh_msg_channel_failure,
{
recipient_channel
}).
-define(TTY_OP_END,0). %% Indicates end of options.
-define(VINTR,1). %% Interrupt character; 255 if none. Similarly for the
%% other characters. Not all of these characters are
%% supported on all systems.
-define(VQUIT,2). %% The quit character (sends SIGQUIT signal on POSIX
%% systems).
-define(VERASE,3). %% Erase the character to left of the cursor.
-define(VKILL,4). %% Kill the current input line.
-define(VEOF,5). %% End-of-file character (sends EOF from the terminal).
-define(VEOL,6). %% End-of-line character in addition to carriage return
%% or,and). linefeed.
-define(VEOL2,7). %% Additional end-of-line character.
-define(VSTART,8). %% Continues paused output (normally control-Q).
-define(VSTOP,9). %% Pauses output (normally control-S).
-define(VSUSP,10). %% Suspends the current program.
-define(VDSUSP,11). %% Another suspend character.
-define(VREPRINT,12). %% Reprints the current input line.
-define(VWERASE,13). %% Erases a word left of cursor.
-define(VLNEXT,14). %% Enter the next character typed literally, even if it
%% is a special character
-define(VFLUSH,15). %% Character to flush output.
-define(VSWTCH,16). %% Switch to a different shell layer.
-define(VSTATUS,17). %% Prints system status line (load, command, pid etc).
-define(VDISCARD,18). %% Toggles the flushing of terminal output.
-define(IGNPAR,30). %% The ignore parity flag. The parameter SHOULD be 0 if
%% this flag is FALSE set, and 1 if it is TRUE.
-define(PARMRK,31). %% Mark parity and framing errors.
-define(INPCK,32). %% Enable checking of parity errors.
-define(ISTRIP,33). %% Strip 8th bit off characters.
-define(INLCR,34). %% Map NL into CR on input.
-define(IGNCR,35). %% Ignore CR on input.
-define(ICRNL,36). %% Map CR to NL on input.
-define(IUCLC,37). %% Translate uppercase characters to lowercase.
-define(IXON,38). %% Enable output flow control.
-define(IXANY,39). %% Any char will restart after stop.
-define(IXOFF,40). %% Enable input flow control.
-define(IMAXBEL,41). %% Ring bell on input queue full.
-define(ISIG,50). %% Enable signals INTR, QUIT, [D]SUSP.
-define(ICANON,51). %% Canonicalize input lines.
-define(XCASE,52). %% Enable input and output of uppercase characters by
%% preceding their lowercase equivalents with `\'.
-define(ECHO,53). %% Enable echoing.
-define(ECHOE,54). %% Visually erase chars.
-define(ECHOK,55). %% Kill character discards current line.
-define(ECHONL,56). %% Echo NL even if ECHO is off.
-define(NOFLSH,57). %% Don't flush after interrupt.
-define(TOSTOP,58). %% Stop background jobs from output.
-define(IEXTEN,59). %% Enable extensions.
-define(ECHOCTL,60). %% Echo control characters as ^(Char).
-define(ECHOKE,61). %% Visual erase for line kill.
-define(PENDIN,62). %% Retype pending input.
-define(OPOST,70). %% Enable output processing.
-define(OLCUC,71). %% Convert lowercase to uppercase.
-define(ONLCR,72). %% Map NL to CR-NL.
-define(OCRNL,73). %% Translate carriage return to newline (output).
-define(ONOCR,74). %% Translate newline to carriage return-newline
%% (output).
-define(ONLRET,75). %% Newline performs a carriage return (output).
-define(CS7,90). %% 7 bit mode.
-define(CS8,91). %% 8 bit mode.
-define(PARENB,92). %% Parity enable.
-define(PARODD,93). %% Odd parity, else even.
%% Specifies the input baud rate in bits per second.
-define(TTY_OP_ISPEED,128).
%% Specifies the output baud rate in bits per second.
-define(TTY_OP_OSPEED,129).
-record(channel,
{
type, %% "session", "x11", "forwarded-tcpip", "direct-tcpip"
sys, %% "none", "shell", "exec" "subsystem"
user, %% "user" process id (default to cm user)
flow_control,
local_id, %% local channel id
recv_window_size,
recv_packet_size,
recv_close = false,
remote_id, %% remote channel id
send_window_size,
send_packet_size,
sent_close = false,
send_buf = []
}).
-record(connection, {
requests = [], %% [{ChannelId, Pid}...] awaiting reply on request,
channel_cache,
channel_pids = [],
port_bindings,
channel_id_seed,
cli_spec,
address,
port,
options,
exec
}).
|
