dropbear: cli-chansession.c annotate

annotate cli-chansession.c @ 709:abd99ecd7ec2

use an empty writebuf rather than a NULL one

author	Matt Johnston <matt@ucc.asn.au>
date	Wed, 20 Mar 2013 22:31:07 +0800
parents	a98a2138364a
children	4a274f47eabd

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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 static void cli_closechansess(struct Channel *channel);
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);
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 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	43 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	44
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 static void cli_tty_setup();
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46
107 d3eb1fa8484e Nasty. Matt Johnston <matt@ucc.asn.au> parents: 99 diff changeset	47 const struct ChanType clichansess = {
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 0, /* sepfds */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 "session", /* name */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 cli_initchansess, /* inithandler */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 NULL, /* checkclosehandler */
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	52 cli_chansessreq, /* reqhandler */
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 cli_closechansess, /* closehandler */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 };
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	56 static void cli_chansessreq(struct Channel *channel) {
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	57
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	58 unsigned char* type = NULL;
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	59 int wantreply;
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	60
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	61 TRACE(("enter cli_chansessreq"))
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	62
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	63 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	64 wantreply = buf_getbool(ses.payload);
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	65
422 a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure Matt Johnston <matt@ucc.asn.au> parents: 311 diff changeset	66 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	67 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	68 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	69 } 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	70 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	71 } 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	72 TRACE(("unknown request '%s'", type))
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	73 send_msg_channel_failure(channel);
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	74 goto out;
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	75 }
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
560 52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	94 void cli_start_send_channel_request(struct Channel *channel,
39 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
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	165 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	166 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	167 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	168 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	169 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	170
311 36d21680a9d3 A few more fixups, make sure that variable declarations are the Matt Johnston <matt@ucc.asn.au> parents: 300 diff changeset	171 unsigned int bufpos1, bufpos2;
300 baea1d43e7eb Some cleanups/fixes for various TRACE statements Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	172
311 36d21680a9d3 A few more fixups, make sure that variable declarations are the Matt Johnston <matt@ucc.asn.au> parents: 300 diff changeset	173 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	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
560 52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	289 cli_start_send_channel_request(channel, "pty-req");
39 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) {
594 a98a2138364a Improve capitalisation for all logged strings Matt Johnston <matt@ucc.asn.au> parents: 582 diff changeset	311 dropbear_exit("Signal error");
41 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) {
497 ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp) Matt Johnston <matt@ucc.asn.au> parents: 485 diff changeset	323 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	324 reqtype = "subsystem";
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp) Matt Johnston <matt@ucc.asn.au> parents: 485 diff changeset	325 } else {
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp) Matt Johnston <matt@ucc.asn.au> parents: 485 diff changeset	326 reqtype = "exec";
ae600f1eef81 - Enable -s for specifying a subsystem (such as sftp) Matt Johnston <matt@ucc.asn.au> parents: 485 diff changeset	327 }
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 } else {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329 reqtype = "shell";
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
560 52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	332 cli_start_send_channel_request(channel, reqtype);
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 /* XXX TODO */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335 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	336 if (cli_opts.cmd) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337 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	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 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	341 TRACE(("leave send_chansess_shell_req"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	342 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	343
485 12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	344 /* 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	345 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	346 channel->writefd = STDOUT_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	347 setnonblocking(STDOUT_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	348
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	349 channel->readfd = STDIN_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	350 setnonblocking(STDIN_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	351
107 d3eb1fa8484e Nasty. Matt Johnston <matt@ucc.asn.au> parents: 99 diff changeset	352 channel->errfd = STDERR_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	353 setnonblocking(STDERR_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	354
449 3e6c536bc023 Add -W <windowsize> argument and document it. Matt Johnston <matt@ucc.asn.au> parents: 448 diff changeset	355 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	356 return 0;
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	357 }
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	358
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	359 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	360
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	361 cli_init_stdpipe_sess(channel);
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	362
560 52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	363 #ifdef ENABLE_CLI_AGENTFWD
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	364 if (cli_opts.agent_fwd) {
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	365 cli_setup_agent(channel);
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	366 }
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	367 #endif
52d7301e46bd Agent forwarding works Matt Johnston <matt@ucc.asn.au> parents: 551 diff changeset	368
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	369 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	370 send_chansess_pty_req(channel);
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	373 send_chansess_shell_req(channel);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	374
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	375 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	376 cli_tty_setup();
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	377 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	378
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	379 return 0; /* Success */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	380 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	381
485 12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	382 #ifdef ENABLE_CLI_NETCAT
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	383
582 6b9d12477953 - make structure static Matt Johnston <matt@ucc.asn.au> parents: 564 diff changeset	384 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	385 0, /* sepfds */
fad3eb63b907 - Move netcat struct to where it stays in scope. Matt Johnston <matt@ucc.asn.au> parents: 560 diff changeset	386 "direct-tcpip",
fad3eb63b907 - Move netcat struct to where it stays in scope. Matt Johnston <matt@ucc.asn.au> parents: 560 diff changeset	387 cli_init_stdpipe_sess, /* inithandler */
fad3eb63b907 - Move netcat struct to where it stays in scope. Matt Johnston <matt@ucc.asn.au> parents: 560 diff changeset	388 NULL,
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 cli_closechansess
fad3eb63b907 - Move netcat struct to where it stays in scope. Matt Johnston <matt@ucc.asn.au> parents: 560 diff changeset	391 };
fad3eb63b907 - Move netcat struct to where it stays in scope. Matt Johnston <matt@ucc.asn.au> parents: 560 diff changeset	392
485 12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	393 void cli_send_netcat_request() {
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: 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 const unsigned char* source_host = "127.0.0.1";
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	396 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	397
485 12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	398 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	399
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	400 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	401 == DROPBEAR_FAILURE) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	402 dropbear_exit("Couldn't open initial channel");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	403 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	404
485 12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	405 buf_putstring(ses.writepayload, 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	406 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	407 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	408
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	409 /* originator ip - localhost is accurate enough */
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	410 buf_putstring(ses.writepayload, source_host, strlen(source_host));
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	411 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	412
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	413 encrypt_packet();
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	414 TRACE(("leave 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	415 }
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	416 #endif
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	417
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	418 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	419
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	420 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	421
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	422 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	423 == DROPBEAR_FAILURE) {
12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	424 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	425 }
6b41e2cbf071 A hack to make dbclient to tcp forwarding netcat style. Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	426
485 12d845ab7b5f Rework netcat-alike to be a proper mode, with -B argument. Matt Johnston <matt@ucc.asn.au> parents: 478 diff changeset	427 /* No special channel request data */
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	428 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	429 TRACE(("leave cli_send_chansess_request"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	430
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	431 }

Mercurial > dropbear

annotate cli-chansession.c @ 709:abd99ecd7ec2