dropbear: cli-chansession.c annotate

annotate cli-chansession.c @ 296:6b41e2cbf071 dbclient-netcat-alike

A hack to make dbclient to tcp forwarding netcat style. eg ./dbclient -i testkey -L 1234:remotehost:remoteport tunnelhost will ssh to tunnelhost (using testkey, there's no way to ask for a password) and then tcpfwd to remotehost:remoteport on stdin/stdout. There's no way to give a cmdline password, so -i for a keyfile will have to do. Yet another reason for agent forwarding. The 1234 is a dummy var, I think it has to be a valid portnumber though.

author	Matt Johnston <matt@ucc.asn.au>
date	Tue, 21 Mar 2006 16:16:41 +0000
parents	84925eceeb13
children	d4f32c3443ac

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"
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 static void cli_closechansess(struct Channel *channel);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 static int cli_initchansess(struct Channel *channel);
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	39 static void cli_chansessreq(struct Channel *channel);
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 static void start_channel_request(struct Channel channel, unsigned char type);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 static void send_chansess_pty_req(struct Channel *channel);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 static void send_chansess_shell_req(struct Channel *channel);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 static void cli_tty_setup();
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47
107 d3eb1fa8484e Nasty. 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 */
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 cli_closechansess, /* closehandler */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 };
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	57 static void cli_chansessreq(struct Channel *channel) {
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	58
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	59 unsigned char* type = NULL;
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	60 int wantreply;
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	61
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	62 TRACE(("enter cli_chansessreq"))
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	63
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	64 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	65 wantreply = buf_getbool(ses.payload);
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	66
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	67 if (strcmp(type, "exit-status") != 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	68 TRACE(("unknown request '%s'", type))
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	69 send_msg_channel_failure(channel);
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	70 goto out;
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	71 }
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	72
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	73 /* We'll just trust what they tell us */
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	74 cli_ses.retval = buf_getint(ses.payload);
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	75 TRACE(("got exit-status of '%d'", cli_ses.retval))
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	76
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	77 out:
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	78 m_free(type);
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
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 /* If the main session goes, we close it up */
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	83 static void cli_closechansess(struct Channel *UNUSED(channel)) {
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 /* 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	86 if (ses.chancount > 1) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 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	88 }
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 cli_tty_cleanup(); /* Restore tty modes etc */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 }
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 static void start_channel_request(struct Channel *channel,
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 unsigned char *type) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 CHECKCLEARTOWRITE();
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 buf_putint(ses.writepayload, channel->remotechan);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 buf_putstring(ses.writepayload, type, strlen(type));
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 /* Taken from OpenSSH's sshtty.c:
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 * 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	107 static void cli_tty_setup() {
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 struct termios tio;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110
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	111 TRACE(("enter cli_pty_setup"))
39 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 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	114 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	115 return;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 if (tcgetattr(STDIN_FILENO, &tio) == -1) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 dropbear_exit("Failed to set raw TTY mode");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 /* make a copy */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 cli_ses.saved_tio = tio;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 tio.c_iflag \|= IGNPAR;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 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	127 #ifdef IUCLC
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 tio.c_iflag &= ~IUCLC;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 #endif
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 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	131 #ifdef IEXTEN
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 tio.c_lflag &= ~IEXTEN;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 #endif
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 tio.c_oflag &= ~OPOST;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 tio.c_cc[VMIN] = 1;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 tio.c_cc[VTIME] = 0;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 if (tcsetattr(STDIN_FILENO, TCSADRAIN, &tio) == -1) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 dropbear_exit("Failed to set raw TTY mode");
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 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	142 TRACE(("leave cli_tty_setup"))
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
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	145 void cli_tty_cleanup() {
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146
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	147 TRACE(("enter cli_tty_cleanup"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 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	150 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	151 return;
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 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	155 dropbear_log(LOG_WARNING, "Failed restoring TTY");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 } else {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 cli_ses.tty_raw_mode = 0;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159
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	160 TRACE(("leave cli_tty_cleanup"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	163 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	164
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	165 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	166
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	167 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	168 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	169 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	170 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	171 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	172
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	173 unsigned int bufpos1, bufpos2;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	174
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	175 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	176 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	177 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	178 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	179 return;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	180 }
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 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	183 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	184
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	185 /* 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	186 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	187
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	188 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	189 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	190
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	191 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	192
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	193 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	194 continue;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	195
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	196 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	197 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	198 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	199
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	200 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	201 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	202 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	203
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	204 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	205 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	206 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	207
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	208 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	209 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	210 break;
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 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	213 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	214 break;
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 default:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	217 continue;
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 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	220
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	221 /* 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	222 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	223 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	224 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	225
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	226 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	227
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	228 /* 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	229 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	230
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	231 buf_setpos(ses.writepayload, bufpos1); /* Jump back */
61 3a4f0ef1e8c3 Write the correct termcodes length Matt Johnston <matt@ucc.asn.au> parents: 41 diff changeset	232 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	233 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	234
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	235 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	236 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	237
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	238 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	239
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	240 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	241
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	242 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	243 /* 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	244 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	245 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	246 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	247 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	248 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	249
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	250 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	251 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	252 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	253 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	254
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	255 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	256
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	257 static void sigwinch_handler(int UNUSED(unused)) {
41 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 cli_ses.winchange = 1;
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	260
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	261 }
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	262
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	263 void cli_chansess_winchange() {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	264
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	265 unsigned int i;
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	266 struct Channel *channel = NULL;
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	267
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	268 for (i = 0; i < ses.chansize; i++) {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	269 channel = ses.channels[i];
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	270 if (channel != NULL && channel->type == &clichansess) {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	271 CHECKCLEARTOWRITE();
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	272 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	273 buf_putint(ses.writepayload, channel->remotechan);
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	274 buf_putstring(ses.writepayload, "window-change", 13);
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	275 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	276 put_winsize();
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	277 encrypt_packet();
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	278 }
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	279 }
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	280 cli_ses.winchange = 0;
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	281 }
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	282
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 static void send_chansess_pty_req(struct Channel *channel) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 unsigned char* term = NULL;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286
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	287 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	288
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 start_channel_request(channel, "pty-req");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	291 /* 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	292 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	293
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	294 /* Get the terminal */
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 term = getenv("TERM");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 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	297 term = "vt100"; /* Seems a safe default */
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 buf_putstring(ses.writepayload, term, strlen(term));
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	301 /* Window size */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	302 put_winsize();
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	303
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	304 /* 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	305 put_termcodes();
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307 encrypt_packet();
41 18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	308
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	309 /* Set up a window-change handler */
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	310 if (signal(SIGWINCH, sigwinch_handler) == SIG_ERR) {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	311 dropbear_exit("signal error");
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	312 }
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	313 TRACE(("leave send_chansess_pty_req"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 static void send_chansess_shell_req(struct Channel *channel) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	318 unsigned char* reqtype = NULL;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319
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	320 TRACE(("enter send_chansess_shell_req"))
39 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 if (cli_opts.cmd) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 reqtype = "exec";
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324 } else {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 reqtype = "shell";
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 start_channel_request(channel, reqtype);
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 /* XXX TODO */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	331 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	332 if (cli_opts.cmd) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333 buf_putstring(ses.writepayload, cli_opts.cmd, strlen(cli_opts.cmd));
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	336 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	337 TRACE(("leave send_chansess_shell_req"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	338 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	339
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	340 static int cli_initchansess(struct Channel *channel) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	341
93 5dda5a4d475c Don't leave the stdin FD non-blocking on exit - busybox doesn't like it. Matt Johnston <matt@ucc.asn.au> parents: 74 diff changeset	342
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	343 channel->writefd = STDOUT_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	344 setnonblocking(STDOUT_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	345
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	346 channel->readfd = STDIN_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	347 setnonblocking(STDIN_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	348
107 d3eb1fa8484e Nasty. Matt Johnston <matt@ucc.asn.au> parents: 99 diff changeset	349 channel->errfd = STDERR_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	350 setnonblocking(STDERR_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	351
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	352 channel->extrabuf = cbuf_new(RECV_MAXWINDOW);
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	353
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	354 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	355 send_chansess_pty_req(channel);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	356 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	357
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	358 send_chansess_shell_req(channel);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	359
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	360 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	361 cli_tty_setup();
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	362 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	363
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	364 return 0; /* Success */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	365
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	366 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	367
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	368 void cli_send_chansess_request() {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	369
296 6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	370 unsigned int port = 0;
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	371 unsigned char* addr = NULL;
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	372 unsigned char* ipstring = "127.0.0.1";
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	373 unsigned char* portstring = "22";
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	374
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	375 /* hack hack */
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	376 static const struct ChanType cli_chan_tcphack = {
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	377 0, /* sepfds */
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	378 "direct-tcpip",
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	379 NULL,
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	380 NULL,
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	381 NULL,
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	382 cli_closechansess
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	383 };
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	384
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	385 TRACE(("enter cli_send_chansess_request"))
296 6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	386 if (send_msg_channel_open_init(STDIN_FILENO, &cli_chan_tcphack)
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	387 == DROPBEAR_FAILURE) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	388 dropbear_exit("Couldn't open initial channel");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	389 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	390
296 6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	391 if (cli_opts.localfwds == NULL) {
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	392 dropbear_exit("You need to give a \"-L ignored:host:port\" option with this hacked up dbclient.");
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	393 }
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	394
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	395 addr = cli_opts.localfwds->connectaddr;
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	396 port = cli_opts.localfwds->connectport;
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	397
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	398 buf_putstring(ses.writepayload, addr, strlen(addr));
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	399 buf_putint(ses.writepayload, port);
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	400
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	401 /* originator ip */
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	402 buf_putstring(ses.writepayload, ipstring, strlen(ipstring));
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	403 /* originator port */
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	404 buf_putint(ses.writepayload, atol(portstring));
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	405
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	406 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	407 TRACE(("leave cli_send_chansess_request"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	408
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	409 }
296 6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	410
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	411 #if 0
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	412 while (cli_opts.localfwds != NULL) {
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	413 ret = cli_localtcp(cli_opts.localfwds->listenport,
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	414 cli_opts.localfwds->connectaddr,
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	415 cli_opts.localfwds->connectport);
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	416 if (ret == DROPBEAR_FAILURE) {
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	417 dropbear_log(LOG_WARNING, "Failed local port forward %d:%s:%d",
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	418 cli_opts.localfwds->listenport,
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	419 cli_opts.localfwds->connectaddr,
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	420 cli_opts.localfwds->connectport);
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	421 #endif

Mercurial > dropbear

annotate cli-chansession.c @ 296:6b41e2cbf071 dbclient-netcat-alike