/*
- *
- * clientloop.c
- *
* Author: Tatu Ylonen <ylo@cs.hut.fi>
- *
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
+ * The main loop for the interactive session (client side).
*
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
*
- * Created: Sat Sep 23 12:23:57 1995 ylo
*
- * The main loop for the interactive session (client side).
+ * Copyright (c) 1999 Theo de Raadt. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
*
* SSH2 support added by Markus Friedl.
+ * Copyright (c) 1999,2000 Markus Friedl. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
-RCSID("$OpenBSD: clientloop.c,v 1.32 2000/08/19 22:21:19 markus Exp $");
+RCSID("$OpenBSD: clientloop.c,v 1.39 2000/10/27 07:48:22 markus Exp $");
#include "xmalloc.h"
#include "ssh.h"
#include "buffer.h"
#include "bufaux.h"
+
+/* import options */
+extern Options options;
+
/* Flag indicating that stdin should be redirected from /dev/null. */
extern int stdin_null_flag;
if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) < 0)
return;
- debug("client_check_window_change: changed");
+ debug2("client_check_window_change: changed");
if (compat20) {
channel_request_start(session_ident, "window-change", 0);
void
client_wait_until_can_do_something(fd_set * readset, fd_set * writeset)
{
- /*debug("client_wait_until_can_do_something"); */
-
/* Initialize select masks. */
FD_ZERO(readset);
FD_ZERO(writeset);
if (FD_ISSET(connection_in, readset)) {
/* Read as much as possible. */
len = read(connection_in, buf, sizeof(buf));
-/*debug("read connection_in len %d", len); XXX */
if (len == 0) {
/* Received EOF. The remote host has closed the connection. */
snprintf(buf, sizeof buf, "Connection to %.300s closed by remote host.\r\n",
void
client_process_buffered_input_packets()
{
- dispatch_run(DISPATCH_NONBLOCK, &quit_pending);
+ dispatch_run(DISPATCH_NONBLOCK, &quit_pending, NULL);
}
/* scan buf[] for '~' before sending data to the peer */
int
client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id)
{
- extern Options options;
double start_time, total_time;
int len;
char buf[100];
client_process_buffered_input_packets();
if (compat20 && !channel_still_open()) {
- debug("!channel_still_open.");
+ debug2("!channel_still_open.");
break;
}
/*********/
void
-client_input_stdout_data(int type, int plen)
+client_input_stdout_data(int type, int plen, void *ctxt)
{
unsigned int data_len;
char *data = packet_get_string(&data_len);
xfree(data);
}
void
-client_input_stderr_data(int type, int plen)
+client_input_stderr_data(int type, int plen, void *ctxt)
{
unsigned int data_len;
char *data = packet_get_string(&data_len);
xfree(data);
}
void
-client_input_exit_status(int type, int plen)
+client_input_exit_status(int type, int plen, void *ctxt)
{
packet_integrity_check(plen, 4, type);
exit_status = packet_get_int();
/* XXXX move to generic input handler */
void
-client_input_channel_open(int type, int plen)
+client_input_channel_open(int type, int plen, void *ctxt)
{
Channel *c = NULL;
char *ctype;
debug("client_input_channel_open: ctype %s rchan %d win %d max %d",
ctype, rchan, rwindow, rmaxpack);
- if (strcmp(ctype, "x11") == 0) {
+ if (strcmp(ctype, "x11") == 0 && options.forward_x11) {
int sock;
char *originator;
int originator_port;
originator = packet_get_string(NULL);
if (datafellows & SSH_BUG_X11FWD) {
- debug("buggy server: x11 request w/o originator_port");
+ debug2("buggy server: x11 request w/o originator_port");
originator_port = 0;
} else {
originator_port = packet_get_int();
/* XXX move to channels.c */
sock = x11_connect_display();
if (sock >= 0) {
-/*XXX MAXPACK */
id = channel_new("x11", SSH_CHANNEL_X11_OPEN,
- sock, sock, -1, 4*1024, 32*1024, 0,
- xstrdup("x11"));
+ sock, sock, -1, CHAN_X11_WINDOW_DEFAULT,
+ CHAN_X11_PACKET_DEFAULT, 0, xstrdup("x11"), 1);
c = channel_lookup(id);
}
}
dispatch_set(SSH_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
dispatch_set(SSH_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
dispatch_set(SSH_MSG_PORT_OPEN, &channel_input_port_open);
- dispatch_set(SSH_SMSG_AGENT_OPEN, &auth_input_open_request);
dispatch_set(SSH_SMSG_EXITSTATUS, &client_input_exit_status);
dispatch_set(SSH_SMSG_STDERR_DATA, &client_input_stderr_data);
dispatch_set(SSH_SMSG_STDOUT_DATA, &client_input_stdout_data);
- dispatch_set(SSH_SMSG_X11_OPEN, &x11_input_open);
+
+ dispatch_set(SSH_SMSG_AGENT_OPEN, options.forward_agent ?
+ &auth_input_open_request : &deny_input_open);
+ dispatch_set(SSH_SMSG_X11_OPEN, options.forward_x11 ?
+ &x11_input_open : &deny_input_open);
}
void
client_init_dispatch_15()
c = channel_lookup(id);
if (c == NULL)
- fatal("session_input_channel_req: channel %d: bad channel", id);
+ fatal("client_input_channel_req: channel %d: bad channel", id);
if (session_ident == -1) {
error("client_input_channel_req: no channel %d", id);
void
client_set_session_ident(int id)
{
- debug("client_set_session_ident: id %d", id);
+ debug2("client_set_session_ident: id %d", id);
session_ident = id;
channel_register_callback(id, SSH2_MSG_CHANNEL_REQUEST,
client_input_channel_req, (void *)0);
andersk / openssh.git / blobdiff