Mercurial > dropbear

annotate cli-chansession.c @ 1636:35a1e8de3aec

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
cygwin competibility fix (#64)
author karel-m <1918753+karel-m@users.noreply.github.com>
date Wed, 20 Mar 2019 16:05:37 +0100
parents 79eef94ccea9
children 4b01f4826a29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
74
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
1 /*
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
2 * Dropbear SSH
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
3 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
4 * Copyright (c) 2002,2003 Matt Johnston
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
5 * Copyright (c) 2004 by Mihnea Stoenescu
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
6 * All rights reserved.
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
7 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
9 * of this software and associated documentation files (the "Software"), to deal
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
10 * in the Software without restriction, including without limitation the rights
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
12 * copies of the Software, and to permit persons to whom the Software is
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
13 * furnished to do so, subject to the following conditions:
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
14 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
15 * The above copyright notice and this permission notice shall be included in
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
16 * all copies or substantial portions of the Software.
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
17 *
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
24 * SOFTWARE. */
e3adf4cf5465 License boilerplate etc, add Mihnea as an author to some of the files
Matt Johnston <matt@ucc.asn.au>
parents: 61
diff changeset
25
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26 #include "includes.h"
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27 #include "packet.h"
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
28 #include "buffer.h"
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
29 #include "session.h"
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
30 #include "dbutil.h"
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31 #include "channel.h"
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
32 #include "ssh.h"
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
33 #include "runopts.h"
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
34 #include "termcodes.h"
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
35 #include "chansession.h"
560
52d7301e46bd Agent forwarding works
Matt Johnston <matt@ucc.asn.au>
parents: 551
diff changeset
36 #include "agentfwd.h"
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
37
1625
79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't
Matt Johnston <matt@ucc.asn.au>
parents: 1460
diff changeset
38 static void cli_cleanupchansess(const struct Channel *channel);
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
39 static int cli_initchansess(struct Channel *channel);
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
40 static void cli_chansessreq(struct Channel *channel);
1459
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1295
diff changeset
41 static void send_chansess_pty_req(const struct Channel *channel);
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1295
diff changeset
42 static void send_chansess_shell_req(const struct Channel *channel);
1460
58a74cb829b8 Pointer parameter could be declared as pointing to const (callback)
Francois Perrad <francois.perrad@gadz.org>
parents: 1459
diff changeset
43 static void cli_escape_handler(const struct Channel *channel, const unsigned char* buf, int *len);
941
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
44 static int cli_init_netcat(struct Channel *channel);
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
45
1276
9169e4e7cbee fix empty C prototypes
Francois Perrad <francois.perrad@gadz.org>
parents: 1267
diff changeset
46 static void cli_tty_setup(void);
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
47
107
Matt Johnston <matt@ucc.asn.au>
parents: 99
diff changeset
48 const struct ChanType clichansess = {
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
49 0, /* sepfds */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
50 "session", /* name */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
51 cli_initchansess, /* inithandler */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
52 NULL, /* checkclosehandler */
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
53 cli_chansessreq, /* reqhandler */
1625
79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't
Matt Johnston <matt@ucc.asn.au>
parents: 1460
diff changeset
54 NULL, /* closehandler */
79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't
Matt Johnston <matt@ucc.asn.au>
parents: 1460
diff changeset
55 cli_cleanupchansess, /* cleanup */
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
56 };
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
57
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
58 static void cli_chansessreq(struct Channel *channel) {
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
59
1117
6b6ed65e99b1 Turn type and term local variables into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1097
diff changeset
60 char* type = NULL;
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
61 int wantreply;
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
62
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
63 TRACE(("enter cli_chansessreq"))
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
64
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1117
diff changeset
65 type = buf_getstring(ses.payload, NULL);
179
161557a9dde8 * fix longstanding bug with connections being closed on failure to
Matt Johnston <matt@ucc.asn.au>
parents: 165
diff changeset
66 wantreply = buf_getbool(ses.payload);
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
67
422
a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure
Matt Johnston <matt@ucc.asn.au>
parents: 311
diff changeset
68 if (strcmp(type, "exit-status") == 0) {
a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure
Matt Johnston <matt@ucc.asn.au>
parents: 311
diff changeset
69 cli_ses.retval = buf_getint(ses.payload);
a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure
Matt Johnston <matt@ucc.asn.au>
parents: 311
diff changeset
70 TRACE(("got exit-status of '%d'", cli_ses.retval))
a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure
Matt Johnston <matt@ucc.asn.au>
parents: 311
diff changeset
71 } else if (strcmp(type, "exit-signal") == 0) {
a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure
Matt Johnston <matt@ucc.asn.au>
parents: 311
diff changeset
72 TRACE(("got exit-signal, ignoring it"))
a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure
Matt Johnston <matt@ucc.asn.au>
parents: 311
diff changeset
73 } else {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
74 TRACE(("unknown request '%s'", type))
816
84e4259dae3e Only send a failure response to a channel request if wantreply is set.
Matt Johnston <matt@ucc.asn.au>
parents: 769
diff changeset
75 if (wantreply) {
84e4259dae3e Only send a failure response to a channel request if wantreply is set.
Matt Johnston <matt@ucc.asn.au>
parents: 769
diff changeset
76 send_msg_channel_failure(channel);
84e4259dae3e Only send a failure response to a channel request if wantreply is set.
Matt Johnston <matt@ucc.asn.au>
parents: 769
diff changeset
77 }
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
78 goto out;
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
79 }
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
80
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
81 out:
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
82 m_free(type);
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
83 }
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
84
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
85
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
86 /* If the main session goes, we close it up */
1625
79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't
Matt Johnston <matt@ucc.asn.au>
parents: 1460
diff changeset
87 static void cli_cleanupchansess(const struct Channel *UNUSED(channel)) {
769
b2d4205b0897 reset terminal modes before printing a message
Matt Johnston <matt@ucc.asn.au>
parents: 722
diff changeset
88 cli_tty_cleanup(); /* Restore tty modes etc */
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
89
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
90 /* This channel hasn't gone yet, so we have > 1 */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
91 if (ses.chancount > 1) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
92 dropbear_log(LOG_INFO, "Waiting for other channels to close...");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
93 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
94 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
95
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
96 /* Taken from OpenSSH's sshtty.c:
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
97 * RCSID("OpenBSD: sshtty.c,v 1.5 2003/09/19 17:43:35 markus Exp "); */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
98 static void cli_tty_setup() {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
99
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
100 struct termios tio;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
101
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
102 TRACE(("enter cli_pty_setup"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
103
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
104 if (cli_ses.tty_raw_mode == 1) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
105 TRACE(("leave cli_tty_setup: already in raw mode!"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
106 return;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
107 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
108
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
109 if (tcgetattr(STDIN_FILENO, &tio) == -1) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
110 dropbear_exit("Failed to set raw TTY mode");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
111 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
112
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
113 /* make a copy */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
114 cli_ses.saved_tio = tio;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
115
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
116 tio.c_iflag |= IGNPAR;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
117 tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF);
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
118 #ifdef IUCLC
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
119 tio.c_iflag &= ~IUCLC;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
120 #endif
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
121 tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL);
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
122 #ifdef IEXTEN
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
123 tio.c_lflag &= ~IEXTEN;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
124 #endif
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
125 tio.c_oflag &= ~OPOST;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
126 tio.c_cc[VMIN] = 1;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
127 tio.c_cc[VTIME] = 0;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
128 if (tcsetattr(STDIN_FILENO, TCSADRAIN, &tio) == -1) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
129 dropbear_exit("Failed to set raw TTY mode");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
130 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
131
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
132 cli_ses.tty_raw_mode = 1;
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
133 TRACE(("leave cli_tty_setup"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
134 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
135
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
136 void cli_tty_cleanup() {
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
137
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
138 TRACE(("enter cli_tty_cleanup"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
139
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
140 if (cli_ses.tty_raw_mode == 0) {
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
141 TRACE(("leave cli_tty_cleanup: not in raw mode"))
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
142 return;
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
143 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
144
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
145 if (tcsetattr(STDIN_FILENO, TCSADRAIN, &cli_ses.saved_tio) == -1) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
146 dropbear_log(LOG_WARNING, "Failed restoring TTY");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
147 } else {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
148 cli_ses.tty_raw_mode = 0;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
149 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
150
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
151 TRACE(("leave cli_tty_cleanup"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
152 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
153
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
154 static void put_termcodes() {
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
155
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
156 struct termios tio;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
157 unsigned int sshcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
158 const struct TermCode *termcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
159 unsigned int value;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
160 unsigned int mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
161
311
36d21680a9d3 A few more fixups, make sure that variable declarations are the
Matt Johnston <matt@ucc.asn.au>
parents: 300
diff changeset
162 unsigned int bufpos1, bufpos2;
300
baea1d43e7eb Some cleanups/fixes for various TRACE statements
Matt Johnston <matt@ucc.asn.au>
parents: 253
diff changeset
163
311
36d21680a9d3 A few more fixups, make sure that variable declarations are the
Matt Johnston <matt@ucc.asn.au>
parents: 300
diff changeset
164 TRACE(("enter put_termcodes"))
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
165
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
166 if (tcgetattr(STDIN_FILENO, &tio) == -1) {
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
167 dropbear_log(LOG_WARNING, "Failed reading termmodes");
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
168 buf_putint(ses.writepayload, 1); /* Just the terminator */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
169 buf_putbyte(ses.writepayload, 0); /* TTY_OP_END */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
170 return;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
171 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
172
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
173 bufpos1 = ses.writepayload->pos;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
174 buf_putint(ses.writepayload, 0); /* A placeholder for the final length */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
175
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
176 /* As with Dropbear server, we ignore baud rates for now */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
177 for (sshcode = 1; sshcode < MAX_TERMCODE; sshcode++) {
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
178
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
179 termcode = &termcodes[sshcode];
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
180 mapcode = termcode->mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
181
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
182 switch (termcode->type) {
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
183
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
184 case TERMCODE_NONE:
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
185 continue;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
186
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
187 case TERMCODE_CONTROLCHAR:
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
188 value = tio.c_cc[mapcode];
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
189 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
190
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
191 case TERMCODE_INPUT:
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
192 value = tio.c_iflag & mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
193 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
194
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
195 case TERMCODE_OUTPUT:
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
196 value = tio.c_oflag & mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
197 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
198
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
199 case TERMCODE_LOCAL:
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
200 value = tio.c_lflag & mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
201 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
202
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
203 case TERMCODE_CONTROL:
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
204 value = tio.c_cflag & mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
205 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
206
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
207 default:
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
208 continue;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
209
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
210 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
211
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
212 /* If we reach here, we have something to say */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
213 buf_putbyte(ses.writepayload, sshcode);
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
214 buf_putint(ses.writepayload, value);
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
215 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
216
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
217 buf_putbyte(ses.writepayload, 0); /* THE END, aka TTY_OP_END */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
218
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
219 /* Put the string length at the start of the buffer */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
220 bufpos2 = ses.writepayload->pos;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
221
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
222 buf_setpos(ses.writepayload, bufpos1); /* Jump back */
61
3a4f0ef1e8c3 Write the correct termcodes length
Matt Johnston <matt@ucc.asn.au>
parents: 41
diff changeset
223 buf_putint(ses.writepayload, bufpos2 - bufpos1 - 4); /* len(termcodes) */
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
224 buf_setpos(ses.writepayload, bufpos2); /* Back where we were */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
225
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
226 TRACE(("leave put_termcodes"))
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
227 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
228
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
229 static void put_winsize() {
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
230
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
231 struct winsize ws;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
232
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
233 if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) < 0) {
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
234 /* Some sane defaults */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
235 ws.ws_row = 25;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
236 ws.ws_col = 80;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
237 ws.ws_xpixel = 0;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
238 ws.ws_ypixel = 0;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
239 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
240
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
241 buf_putint(ses.writepayload, ws.ws_col); /* Cols */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
242 buf_putint(ses.writepayload, ws.ws_row); /* Rows */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
243 buf_putint(ses.writepayload, ws.ws_xpixel); /* Width */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
244 buf_putint(ses.writepayload, ws.ws_ypixel); /* Height */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
245
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
246 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
247
108
10f4d3319780 - added circular buffering for channels
Matt Johnston <matt@ucc.asn.au>
parents: 107
diff changeset
248 static void sigwinch_handler(int UNUSED(unused)) {
41
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
249
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
250 cli_ses.winchange = 1;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
251
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
252 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
253
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
254 void cli_chansess_winchange() {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
255
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
256 unsigned int i;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
257 struct Channel *channel = NULL;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
258
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
259 for (i = 0; i < ses.chansize; i++) {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
260 channel = ses.channels[i];
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
261 if (channel != NULL && channel->type == &clichansess) {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
262 CHECKCLEARTOWRITE();
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
263 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
264 buf_putint(ses.writepayload, channel->remotechan);
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1117
diff changeset
265 buf_putstring(ses.writepayload, "window-change", 13);
41
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
266 buf_putbyte(ses.writepayload, 0); /* FALSE says the spec */
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
267 put_winsize();
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
268 encrypt_packet();
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
269 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
270 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
271 cli_ses.winchange = 0;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
272 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
273
1459
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1295
diff changeset
274 static void send_chansess_pty_req(const struct Channel *channel) {
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
275
1117
6b6ed65e99b1 Turn type and term local variables into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1097
diff changeset
276 char* term = NULL;
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
277
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
278 TRACE(("enter send_chansess_pty_req"))
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
279
970
0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does
Matt Johnston <matt@ucc.asn.au>
parents: 941
diff changeset
280 start_send_channel_request(channel, "pty-req");
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
281
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
282 /* Don't want replies */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
283 buf_putbyte(ses.writepayload, 0);
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
284
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
285 /* Get the terminal */
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
286 term = getenv("TERM");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
287 if (term == NULL) {
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
288 term = "vt100"; /* Seems a safe default */
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
289 }
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1117
diff changeset
290 buf_putstring(ses.writepayload, term, strlen(term));
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
291
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
292 /* Window size */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
293 put_winsize();
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
294
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
295 /* Terminal mode encoding */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
296 put_termcodes();
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
297
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
298 encrypt_packet();
41
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
299
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
300 /* Set up a window-change handler */
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
301 if (signal(SIGWINCH, sigwinch_handler) == SIG_ERR) {
594
a98a2138364a Improve capitalisation for all logged strings
Matt Johnston <matt@ucc.asn.au>
parents: 582
diff changeset
302 dropbear_exit("Signal error");
41
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
303 }
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
304 TRACE(("leave send_chansess_pty_req"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
305 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
306
1459
06d52bcb8094 Pointer parameter could be declared as pointing to const
Francois Perrad <francois.perrad@gadz.org>
parents: 1295
diff changeset
307 static void send_chansess_shell_req(const struct Channel *channel) {
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
308
1097
93e29b0ef8dc Turn start_send_channel_request()'s type argument into char *
Gaël PORTAY <gael.portay@gmail.com>
parents: 1094
diff changeset
309 char* reqtype = NULL;
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
310
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
311 TRACE(("enter send_chansess_shell_req"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
312
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
313 if (cli_opts.cmd) {
497
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp)
Matt Johnston <matt@ucc.asn.au>
parents: 485
diff changeset
314 if (cli_opts.is_subsystem) {
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp)
Matt Johnston <matt@ucc.asn.au>
parents: 485
diff changeset
315 reqtype = "subsystem";
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp)
Matt Johnston <matt@ucc.asn.au>
parents: 485
diff changeset
316 } else {
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp)
Matt Johnston <matt@ucc.asn.au>
parents: 485
diff changeset
317 reqtype = "exec";
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp)
Matt Johnston <matt@ucc.asn.au>
parents: 485
diff changeset
318 }
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
319 } else {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
320 reqtype = "shell";
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
321 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
322
970
0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does
Matt Johnston <matt@ucc.asn.au>
parents: 941
diff changeset
323 start_send_channel_request(channel, reqtype);
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
324
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
325 /* XXX TODO */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
326 buf_putbyte(ses.writepayload, 0); /* Don't want replies */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
327 if (cli_opts.cmd) {
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1117
diff changeset
328 buf_putstring(ses.writepayload, cli_opts.cmd, strlen(cli_opts.cmd));
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
329 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
330
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
331 encrypt_packet();
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
332 TRACE(("leave send_chansess_shell_req"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
333 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
334
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
335 /* Shared for normal client channel and netcat-alike */
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
336 static int cli_init_stdpipe_sess(struct Channel *channel) {
253
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
337 channel->writefd = STDOUT_FILENO;
109
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
338 setnonblocking(STDOUT_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
339
253
84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion
Matt Johnston <matt@ucc.asn.au>
parents: 179
diff changeset
340 channel->readfd = STDIN_FILENO;
109
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
341 setnonblocking(STDIN_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
342
107
Matt Johnston <matt@ucc.asn.au>
parents: 99
diff changeset
343 channel->errfd = STDERR_FILENO;
109
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
344 setnonblocking(STDERR_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b
Matt Johnston <matt@ucc.asn.au>
parents: 108
diff changeset
345
449
3e6c536bc023 Add -W <windowsize> argument and document it.
Matt Johnston <matt@ucc.asn.au>
parents: 448
diff changeset
346 channel->extrabuf = cbuf_new(opts.recv_window);
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
347 return 0;
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
348 }
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
349
941
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
350 static int cli_init_netcat(struct Channel *channel) {
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
351 channel->prio = DROPBEAR_CHANNEL_PRIO_UNKNOWABLE;
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
352 return cli_init_stdpipe_sess(channel);
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
353 }
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
354
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
355 static int cli_initchansess(struct Channel *channel) {
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
356
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
357 cli_init_stdpipe_sess(channel);
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
358
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1276
diff changeset
359 #if DROPBEAR_CLI_AGENTFWD
560
52d7301e46bd Agent forwarding works
Matt Johnston <matt@ucc.asn.au>
parents: 551
diff changeset
360 if (cli_opts.agent_fwd) {
52d7301e46bd Agent forwarding works
Matt Johnston <matt@ucc.asn.au>
parents: 551
diff changeset
361 cli_setup_agent(channel);
52d7301e46bd Agent forwarding works
Matt Johnston <matt@ucc.asn.au>
parents: 551
diff changeset
362 }
52d7301e46bd Agent forwarding works
Matt Johnston <matt@ucc.asn.au>
parents: 551
diff changeset
363 #endif
52d7301e46bd Agent forwarding works
Matt Johnston <matt@ucc.asn.au>
parents: 551
diff changeset
364
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
365 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
366 send_chansess_pty_req(channel);
941
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
367 channel->prio = DROPBEAR_CHANNEL_PRIO_INTERACTIVE;
871
aa689d140928 - Sockets are set to lowdelay priority initially to improve conneciton setup
Matt Johnston <matt@ucc.asn.au>
parents: 870
diff changeset
368 } else {
941
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
369 channel->prio = DROPBEAR_CHANNEL_PRIO_BULK;
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
370 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
371
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
372 send_chansess_shell_req(channel);
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
373
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
374 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
375 cli_tty_setup();
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
376 channel->read_mangler = cli_escape_handler;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
377 cli_ses.last_char = '\r';
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
378 }
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
379
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
380 return 0; /* Success */
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
381 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
382
1295
750ec4ec4cbe Convert #ifdef to #if, other build changes
Matt Johnston <matt@ucc.asn.au>
parents: 1276
diff changeset
383 #if DROPBEAR_CLI_NETCAT
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
384
582
6b9d12477953 - make structure static
Matt Johnston <matt@ucc.asn.au>
parents: 564
diff changeset
385 static const struct ChanType cli_chan_netcat = {
564
fad3eb63b907 - Move netcat struct to where it stays in scope.
Matt Johnston <matt@ucc.asn.au>
parents: 560
diff changeset
386 0, /* sepfds */
fad3eb63b907 - Move netcat struct to where it stays in scope.
Matt Johnston <matt@ucc.asn.au>
parents: 560
diff changeset
387 "direct-tcpip",
941
5daedffd0769 Set tcp priority as follows:
Matt Johnston <matt@ucc.asn.au>
parents: 872
diff changeset
388 cli_init_netcat, /* inithandler */
564
fad3eb63b907 - Move netcat struct to where it stays in scope.
Matt Johnston <matt@ucc.asn.au>
parents: 560
diff changeset
389 NULL,
fad3eb63b907 - Move netcat struct to where it stays in scope.
Matt Johnston <matt@ucc.asn.au>
parents: 560
diff changeset
390 NULL,
1625
79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't
Matt Johnston <matt@ucc.asn.au>
parents: 1460
diff changeset
391 NULL,
79eef94ccea9 Split ChanType closehandler() and cleanup() so that dbclient doesn't
Matt Johnston <matt@ucc.asn.au>
parents: 1460
diff changeset
392 cli_cleanupchansess
564
fad3eb63b907 - Move netcat struct to where it stays in scope.
Matt Johnston <matt@ucc.asn.au>
parents: 560
diff changeset
393 };
fad3eb63b907 - Move netcat struct to where it stays in scope.
Matt Johnston <matt@ucc.asn.au>
parents: 560
diff changeset
394
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
395 void cli_send_netcat_request() {
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
396
1094
c45d65392c1a Fix pointer differ in signess warnings [-Werror=pointer-sign]
Gaël PORTAY <gael.portay@gmail.com>
parents: 970
diff changeset
397 const char* source_host = "127.0.0.1";
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
398 const int source_port = 22;
296
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style.
Matt Johnston <matt@ucc.asn.au>
parents: 253
diff changeset
399
872
a287954a16d6 Fix TRACEs of cli_send_netcat_request
Catalin Patulea <cat@vv.carleton.ca>
parents: 871
diff changeset
400 TRACE(("enter cli_send_netcat_request"))
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
401 cli_opts.wantpty = 0;
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
402
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
403 if (send_msg_channel_open_init(STDIN_FILENO, &cli_chan_netcat)
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
404 == DROPBEAR_FAILURE) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
405 dropbear_exit("Couldn't open initial channel");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
406 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
407
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1117
diff changeset
408 buf_putstring(ses.writepayload, cli_opts.netcat_host,
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
409 strlen(cli_opts.netcat_host));
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
410 buf_putint(ses.writepayload, cli_opts.netcat_port);
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
411
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
412 /* originator ip - localhost is accurate enough */
1122
aaf576b27a10 Merge pull request #13 from gazoo74/fix-warnings
Matt Johnston <matt@ucc.asn.au>
parents: 1117
diff changeset
413 buf_putstring(ses.writepayload, source_host, strlen(source_host));
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
414 buf_putint(ses.writepayload, source_port);
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
415
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
416 encrypt_packet();
872
a287954a16d6 Fix TRACEs of cli_send_netcat_request
Catalin Patulea <cat@vv.carleton.ca>
parents: 871
diff changeset
417 TRACE(("leave cli_send_netcat_request"))
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
418 }
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
419 #endif
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
420
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
421 void cli_send_chansess_request() {
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
422
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
423 TRACE(("enter cli_send_chansess_request"))
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
424
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
425 if (send_msg_channel_open_init(STDIN_FILENO, &clichansess)
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
426 == DROPBEAR_FAILURE) {
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
427 dropbear_exit("Couldn't open initial channel");
296
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style.
Matt Johnston <matt@ucc.asn.au>
parents: 253
diff changeset
428 }
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style.
Matt Johnston <matt@ucc.asn.au>
parents: 253
diff changeset
429
485
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents: 478
diff changeset
430 /* No special channel request data */
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
431 encrypt_packet();
165
0cfba3034be5 Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents: 109
diff changeset
432 TRACE(("leave cli_send_chansess_request"))
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
433
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
434 }
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
435
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 835
diff changeset
436 /* returns 1 if the character should be consumed, 0 to pass through */
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
437 static int
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
438 do_escape(unsigned char c) {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
439 switch (c) {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
440 case '.':
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
441 dropbear_exit("Terminated");
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
442 return 1;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
443 case 0x1a:
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 835
diff changeset
444 /* ctrl-z */
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
445 cli_tty_cleanup();
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
446 kill(getpid(), SIGTSTP);
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 835
diff changeset
447 /* after continuation */
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
448 cli_tty_setup();
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
449 cli_ses.winchange = 1;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
450 return 1;
1267
1f9858bfe03e put default in switch/case
Francois Perrad <francois.perrad@gadz.org>
parents: 1266
diff changeset
451 default:
1f9858bfe03e put default in switch/case
Francois Perrad <francois.perrad@gadz.org>
parents: 1266
diff changeset
452 return 0;
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
453 }
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
454 }
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
455
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
456 static
1460
58a74cb829b8 Pointer parameter could be declared as pointing to const (callback)
Francois Perrad <francois.perrad@gadz.org>
parents: 1459
diff changeset
457 void cli_escape_handler(const struct Channel* UNUSED(channel), const unsigned char* buf, int *len) {
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
458 char c;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
459 int skip_char = 0;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
460
857
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 835
diff changeset
461 /* only handle escape characters if they are read one at a time. simplifies
c19acba28590 use oldstyle comments
Matt Johnston <matt@ucc.asn.au>
parents: 835
diff changeset
462 the code and avoids nasty people putting ~. at the start of a line to paste */
722
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
463 if (*len != 1) {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
464 cli_ses.last_char = 0x0;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
465 return;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
466 }
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
467
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
468 c = buf[0];
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
469
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
470 if (cli_ses.last_char == DROPBEAR_ESCAPE_CHAR) {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
471 skip_char = do_escape(c);
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
472 cli_ses.last_char = 0x0;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
473 } else {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
474 if (c == DROPBEAR_ESCAPE_CHAR) {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
475 if (cli_ses.last_char == '\r') {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
476 cli_ses.last_char = DROPBEAR_ESCAPE_CHAR;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
477 skip_char = 1;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
478 } else {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
479 cli_ses.last_char = 0x0;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
480 }
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
481 } else {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
482 cli_ses.last_char = c;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
483 }
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
484 }
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
485
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
486 if (skip_char) {
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
487 *len = 0;
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
488 }
4a274f47eabd Add ~. and ~^Z handling to exit/suspend dbclient
Matt Johnston <matt@ucc.asn.au>
parents: 594
diff changeset
489 }