dropbear: cli-chansession.c annotate

annotate cli-chansession.c @ 448:9c61e7af0156

Rearrange the channel buffer sizes into three neat use-editable values in options.h. Increasing RECV_MAX_WINDOW gives big network performance increases - even with the present buffers (which haven't changed) it performs a lot better. Next step is to make the window size a cmdline option.

author	Matt Johnston <matt@ucc.asn.au>
date	Tue, 24 Jul 2007 15:40:23 +0000
parents	a9e0ddac5ba7
children	3e6c536bc023

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
422 a9e0ddac5ba7 Ignore "exit-signal" request rather than returning failure Matt Johnston <matt@ucc.asn.au> parents: 311 diff changeset	67 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	68 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	69 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	70 } 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	71 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	72 } 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	73 TRACE(("unknown request '%s'", type))
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	74 send_msg_channel_failure(channel);
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	75 goto out;
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
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	78 out:
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	79 m_free(type);
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
10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	82
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 /* 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	84 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	85
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 /* 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	87 if (ses.chancount > 1) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 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	89 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 cli_tty_cleanup(); /* Restore tty modes etc */
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 static void start_channel_request(struct Channel *channel,
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 unsigned char *type) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 CHECKCLEARTOWRITE();
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 buf_putint(ses.writepayload, channel->remotechan);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 buf_putstring(ses.writepayload, type, strlen(type));
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 /* Taken from OpenSSH's sshtty.c:
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 * 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	108 static void cli_tty_setup() {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 struct termios tio;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111
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	112 TRACE(("enter cli_pty_setup"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 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	115 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	116 return;
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 if (tcgetattr(STDIN_FILENO, &tio) == -1) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 dropbear_exit("Failed to set raw TTY mode");
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 /* make a copy */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 cli_ses.saved_tio = tio;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 tio.c_iflag \|= IGNPAR;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 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	128 #ifdef IUCLC
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 tio.c_iflag &= ~IUCLC;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 #endif
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 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	132 #ifdef IEXTEN
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 tio.c_lflag &= ~IEXTEN;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 #endif
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135 tio.c_oflag &= ~OPOST;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 tio.c_cc[VMIN] = 1;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 tio.c_cc[VTIME] = 0;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 if (tcsetattr(STDIN_FILENO, TCSADRAIN, &tio) == -1) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 dropbear_exit("Failed to set raw TTY mode");
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 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	143 TRACE(("leave cli_tty_setup"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	146 void cli_tty_cleanup() {
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147
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	148 TRACE(("enter cli_tty_cleanup"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 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	151 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	152 return;
39 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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 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	156 dropbear_log(LOG_WARNING, "Failed restoring TTY");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 } else {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 cli_ses.tty_raw_mode = 0;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160
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	161 TRACE(("leave cli_tty_cleanup"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	164 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	165
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	166 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	167 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	168 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	169 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	170 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	171
311 36d21680a9d3 A few more fixups, make sure that variable declarations are the Matt Johnston <matt@ucc.asn.au> parents: 300 diff changeset	172 unsigned int bufpos1, bufpos2;
300 baea1d43e7eb Some cleanups/fixes for various TRACE statements Matt Johnston <matt@ucc.asn.au> parents: 253 diff changeset	173
311 36d21680a9d3 A few more fixups, make sure that variable declarations are the Matt Johnston <matt@ucc.asn.au> parents: 300 diff changeset	174 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	175
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	176 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	177 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	178 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	179 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	180 return;
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
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	183 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	184 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	185
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	186 /* 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	187 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	188
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	189 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	190 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	191
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	192 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	193
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	194 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	195 continue;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	196
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	197 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	198 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	199 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	200
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	201 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	202 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	203 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	204
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	205 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	206 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	207 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	208
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	209 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	210 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	211 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	212
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	213 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	214 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	215 break;
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	216
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	217 default:
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	218 continue;
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
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	222 /* 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	223 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	224 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	225 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	226
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	227 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	228
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	229 /* 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	230 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	231
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	232 buf_setpos(ses.writepayload, bufpos1); /* Jump back */
61 3a4f0ef1e8c3 Write the correct termcodes length Matt Johnston <matt@ucc.asn.au> parents: 41 diff changeset	233 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	234 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	235
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	236 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	237 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	238
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	239 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	240
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	241 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	242
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	243 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	244 /* 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	245 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	246 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	247 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	248 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	249 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	250
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_col); /* Cols */
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_row); /* Rows */
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_xpixel); /* Width */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	254 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	255
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	256 }
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	257
108 10f4d3319780 - added circular buffering for channels Matt Johnston <matt@ucc.asn.au> parents: 107 diff changeset	258 static void sigwinch_handler(int UNUSED(unused)) {
41 18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	259
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	260 cli_ses.winchange = 1;
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
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	264 void cli_chansess_winchange() {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	265
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	266 unsigned int i;
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	267 struct Channel *channel = NULL;
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	268
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	269 for (i = 0; i < ses.chansize; i++) {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	270 channel = ses.channels[i];
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	271 if (channel != NULL && channel->type == &clichansess) {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	272 CHECKCLEARTOWRITE();
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	273 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	274 buf_putint(ses.writepayload, channel->remotechan);
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	275 buf_putstring(ses.writepayload, "window-change", 13);
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	276 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	277 put_winsize();
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	278 encrypt_packet();
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 }
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	281 cli_ses.winchange = 0;
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	282 }
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	283
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 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	285
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 unsigned char* term = NULL;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287
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	288 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	289
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 start_channel_request(channel, "pty-req");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	292 /* 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	293 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	294
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	295 /* Get the terminal */
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 term = getenv("TERM");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297 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	298 term = "vt100"; /* Seems a safe default */
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300 buf_putstring(ses.writepayload, term, strlen(term));
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301
40 b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	302 /* Window size */
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	303 put_winsize();
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	304
b4874d772210 - Added terminal mode handling etc for the client, and window change Matt Johnston <matt@ucc.asn.au> parents: 39 diff changeset	305 /* 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	306 put_termcodes();
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308 encrypt_packet();
41 18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	309
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	310 /* Set up a window-change handler */
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	311 if (signal(SIGWINCH, sigwinch_handler) == SIG_ERR) {
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	312 dropbear_exit("signal error");
18eccbfb9641 added window-size change handling Matt Johnston <matt@ucc.asn.au> parents: 40 diff changeset	313 }
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	314 TRACE(("leave send_chansess_pty_req"))
39 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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317 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	318
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319 unsigned char* reqtype = NULL;
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320
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	321 TRACE(("enter send_chansess_shell_req"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 if (cli_opts.cmd) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324 reqtype = "exec";
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 } else {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326 reqtype = "shell";
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329 start_channel_request(channel, reqtype);
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 /* XXX TODO */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	332 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	333 if (cli_opts.cmd) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334 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	335 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	336
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337 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	338 TRACE(("leave send_chansess_shell_req"))
39 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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	341 static int cli_initchansess(struct Channel *channel) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	342
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	343
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	344 channel->writefd = STDOUT_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	345 setnonblocking(STDOUT_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	346
253 84925eceeb13 * rename infd/outfd to writefd/readfd, to avoid confusion Matt Johnston <matt@ucc.asn.au> parents: 179 diff changeset	347 channel->readfd = STDIN_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	348 setnonblocking(STDIN_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	349
107 d3eb1fa8484e Nasty. Matt Johnston <matt@ucc.asn.au> parents: 99 diff changeset	350 channel->errfd = STDERR_FILENO;
109 2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	351 setnonblocking(STDERR_FILENO);
2e9d1f29c50f merge of 50be59810e462f9f44f55e421227d6aa0b31982b Matt Johnston <matt@ucc.asn.au> parents: 108 diff changeset	352
448 9c61e7af0156 Rearrange the channel buffer sizes into three neat use-editable values in Matt Johnston <matt@ucc.asn.au> parents: 422 diff changeset	353 channel->extrabuf = cbuf_new(RECV_MAX_WINDOW);
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	354
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	355 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	356 send_chansess_pty_req(channel);
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	359 send_chansess_shell_req(channel);
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	360
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	361 if (cli_opts.wantpty) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	362 cli_tty_setup();
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	365 return 0; /* Success */
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
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	369 void cli_send_chansess_request() {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	370
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	371 TRACE(("enter cli_send_chansess_request"))
39 0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	372 if (send_msg_channel_open_init(STDIN_FILENO, &clichansess)
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	373 == DROPBEAR_FAILURE) {
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	374 dropbear_exit("Couldn't open initial channel");
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	375 }
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	376
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	377 /* No special channel request data */
0883c0906870 tty raw mode support works mostly Matt Johnston <matt@ucc.asn.au> parents: diff changeset	378 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	379 TRACE(("leave cli_send_chansess_request"))
39 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 }

Mercurial > dropbear

annotate cli-chansession.c @ 448:9c61e7af0156