2 * Author: Tatu Ylonen <ylo@cs.hut.fi>
3 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 * Server main loop for handling the interactive session.
7 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is
10 * incompatible with the protocol description in the RFC file, it must be
11 * called by a name other than "ssh" or "Secure Shell".
13 * SSH2 support by Markus Friedl.
14 * Copyright (c) 2000 Markus Friedl. All rights reserved.
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 RCSID("$OpenBSD: serverloop.c,v 1.42 2001/01/21 19:05:55 markus Exp $");
53 #include "auth-options.h"
54 #include "serverloop.h"
57 extern ServerOptions options;
59 static Buffer stdin_buffer; /* Buffer for stdin data. */
60 static Buffer stdout_buffer; /* Buffer for stdout data. */
61 static Buffer stderr_buffer; /* Buffer for stderr data. */
62 static int fdin; /* Descriptor for stdin (for writing) */
63 static int fdout; /* Descriptor for stdout (for reading);
64 May be same number as fdin. */
65 static int fderr; /* Descriptor for stderr. May be -1. */
66 static long stdin_bytes = 0; /* Number of bytes written to stdin. */
67 static long stdout_bytes = 0; /* Number of stdout bytes sent to client. */
68 static long stderr_bytes = 0; /* Number of stderr bytes sent to client. */
69 static long fdout_bytes = 0; /* Number of stdout bytes read from program. */
70 static int stdin_eof = 0; /* EOF message received from client. */
71 static int fdout_eof = 0; /* EOF encountered reading from fdout. */
72 static int fderr_eof = 0; /* EOF encountered readung from fderr. */
73 static int connection_in; /* Connection to client (input). */
74 static int connection_out; /* Connection to client (output). */
75 static u_int buffer_high;/* "Soft" max buffer size. */
76 static int max_fd; /* Max file descriptor number for select(). */
79 * This SIGCHLD kludge is used to detect when the child exits. The server
80 * will exit after that, as soon as forwarded connections have terminated.
83 static pid_t child_pid; /* Pid of the child. */
84 static volatile int child_terminated; /* The child has terminated. */
85 static volatile int child_wait_status; /* Status from wait(). */
87 void server_init_dispatch(void);
90 sigchld_handler(int sig)
92 int save_errno = errno;
95 debug("Received SIGCHLD.");
96 wait_pid = wait((int *) &child_wait_status);
98 if (wait_pid != child_pid)
99 error("Strange, got SIGCHLD and wait returned pid %d but child is %d",
100 wait_pid, child_pid);
101 if (WIFEXITED(child_wait_status) ||
102 WIFSIGNALED(child_wait_status))
103 child_terminated = 1;
105 signal(SIGCHLD, sigchld_handler);
109 sigchld_handler2(int sig)
111 int save_errno = errno;
112 debug("Received SIGCHLD.");
113 child_terminated = 1;
114 signal(SIGCHLD, sigchld_handler2);
119 * Make packets from buffered stderr data, and buffer it for sending
123 make_packets_from_stderr_data()
127 /* Send buffered stderr data to the client. */
128 while (buffer_len(&stderr_buffer) > 0 &&
129 packet_not_very_much_data_to_write()) {
130 len = buffer_len(&stderr_buffer);
131 if (packet_is_interactive()) {
135 /* Keep the packets at reasonable size. */
136 if (len > packet_get_maxsize())
137 len = packet_get_maxsize();
139 packet_start(SSH_SMSG_STDERR_DATA);
140 packet_put_string(buffer_ptr(&stderr_buffer), len);
142 buffer_consume(&stderr_buffer, len);
148 * Make packets from buffered stdout data, and buffer it for sending to the
152 make_packets_from_stdout_data()
156 /* Send buffered stdout data to the client. */
157 while (buffer_len(&stdout_buffer) > 0 &&
158 packet_not_very_much_data_to_write()) {
159 len = buffer_len(&stdout_buffer);
160 if (packet_is_interactive()) {
164 /* Keep the packets at reasonable size. */
165 if (len > packet_get_maxsize())
166 len = packet_get_maxsize();
168 packet_start(SSH_SMSG_STDOUT_DATA);
169 packet_put_string(buffer_ptr(&stdout_buffer), len);
171 buffer_consume(&stdout_buffer, len);
177 * Sleep in select() until we can do something. This will initialize the
178 * select masks. Upon return, the masks will indicate which descriptors
179 * have data or can accept data. Optionally, a maximum time can be specified
180 * for the duration of the wait (0 = infinite).
183 wait_until_can_do_something(fd_set * readset, fd_set * writeset,
184 u_int max_time_milliseconds)
186 struct timeval tv, *tvp;
189 /* When select fails we restart from here. */
192 /* Initialize select() masks. */
197 /* wrong: bad condition XXX */
198 if (channel_not_very_much_buffered_data())
199 FD_SET(connection_in, readset);
202 * Read packets from the client unless we have too much
203 * buffered stdin or channel data.
205 if (buffer_len(&stdin_buffer) < buffer_high &&
206 channel_not_very_much_buffered_data())
207 FD_SET(connection_in, readset);
209 * If there is not too much data already buffered going to
210 * the client, try to get some more data from the program.
212 if (packet_not_very_much_data_to_write()) {
214 FD_SET(fdout, readset);
216 FD_SET(fderr, readset);
219 * If we have buffered data, try to write some of that data
222 if (fdin != -1 && buffer_len(&stdin_buffer) > 0)
223 FD_SET(fdin, writeset);
225 /* Set masks for channel descriptors. */
226 channel_prepare_select(readset, writeset);
229 * If we have buffered packet data going to the client, mark that
232 if (packet_have_data_to_write())
233 FD_SET(connection_out, writeset);
235 /* Update the maximum descriptor number if appropriate. */
236 if (channel_max_fd() > max_fd)
237 max_fd = channel_max_fd();
240 * If child has terminated and there is enough buffer space to read
241 * from it, then read as much as is available and exit.
243 if (child_terminated && packet_not_very_much_data_to_write())
244 if (max_time_milliseconds == 0)
245 max_time_milliseconds = 100;
247 if (max_time_milliseconds == 0)
250 tv.tv_sec = max_time_milliseconds / 1000;
251 tv.tv_usec = 1000 * (max_time_milliseconds % 1000);
255 debug2("tvp!=NULL kid %d mili %d", child_terminated, max_time_milliseconds);
257 /* Wait for something to happen, or the timeout to expire. */
258 ret = select(max_fd + 1, readset, writeset, NULL, tvp);
262 error("select: %.100s", strerror(errno));
269 * Processes input from the client and the program. Input data is stored
270 * in buffers and processed later.
273 process_input(fd_set * readset)
278 /* Read and buffer any input data from the client. */
279 if (FD_ISSET(connection_in, readset)) {
280 len = read(connection_in, buf, sizeof(buf));
282 verbose("Connection closed by remote host.");
284 } else if (len < 0) {
285 if (errno != EINTR && errno != EAGAIN) {
286 verbose("Read error from remote host: %.100s", strerror(errno));
290 /* Buffer any received data. */
291 packet_process_incoming(buf, len);
297 /* Read and buffer any available stdout data from the program. */
298 if (!fdout_eof && FD_ISSET(fdout, readset)) {
299 len = read(fdout, buf, sizeof(buf));
300 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
302 } else if (len <= 0) {
305 buffer_append(&stdout_buffer, buf, len);
309 /* Read and buffer any available stderr data from the program. */
310 if (!fderr_eof && FD_ISSET(fderr, readset)) {
311 len = read(fderr, buf, sizeof(buf));
312 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
314 } else if (len <= 0) {
317 buffer_append(&stderr_buffer, buf, len);
323 * Sends data from internal buffers to client program stdin.
326 process_output(fd_set * writeset)
330 /* Write buffered data to program stdin. */
331 if (!compat20 && fdin != -1 && FD_ISSET(fdin, writeset)) {
332 len = write(fdin, buffer_ptr(&stdin_buffer),
333 buffer_len(&stdin_buffer));
334 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
336 } else if (len <= 0) {
343 shutdown(fdin, SHUT_WR); /* We will no longer send. */
347 /* Successful write. Consume the data from the buffer. */
348 buffer_consume(&stdin_buffer, len);
349 /* Update the count of bytes written to the program. */
353 /* Send any buffered packet data to the client. */
354 if (FD_ISSET(connection_out, writeset))
359 * Wait until all buffered output has been sent to the client.
360 * This is used when the program terminates.
365 /* Send any buffered stdout data to the client. */
366 if (buffer_len(&stdout_buffer) > 0) {
367 packet_start(SSH_SMSG_STDOUT_DATA);
368 packet_put_string(buffer_ptr(&stdout_buffer),
369 buffer_len(&stdout_buffer));
371 /* Update the count of sent bytes. */
372 stdout_bytes += buffer_len(&stdout_buffer);
374 /* Send any buffered stderr data to the client. */
375 if (buffer_len(&stderr_buffer) > 0) {
376 packet_start(SSH_SMSG_STDERR_DATA);
377 packet_put_string(buffer_ptr(&stderr_buffer),
378 buffer_len(&stderr_buffer));
380 /* Update the count of sent bytes. */
381 stderr_bytes += buffer_len(&stderr_buffer);
383 /* Wait until all buffered data has been written to the client. */
388 process_buffered_input_packets()
390 dispatch_run(DISPATCH_NONBLOCK, NULL, NULL);
394 * Performs the interactive session. This handles data transmission between
395 * the client and the program. Note that the notion of stdin, stdout, and
396 * stderr in this function is sort of reversed: this function writes to
397 * stdin (of the child program), and reads from stdout and stderr (of the
401 server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg)
403 fd_set readset, writeset;
404 int wait_status; /* Status returned by wait(). */
405 pid_t wait_pid; /* pid returned by wait(). */
406 int waiting_termination = 0; /* Have displayed waiting close message. */
407 u_int max_time_milliseconds;
408 u_int previous_stdout_buffer_bytes;
409 u_int stdout_buffer_bytes;
412 debug("Entering interactive session.");
414 /* Initialize the SIGCHLD kludge. */
416 child_terminated = 0;
417 signal(SIGCHLD, sigchld_handler);
418 signal(SIGPIPE, SIG_IGN);
420 /* Initialize our global variables. */
428 /* we don't have stderr for interactive terminal sessions, see below */
432 connection_in = packet_get_connection_in();
433 connection_out = packet_get_connection_out();
435 previous_stdout_buffer_bytes = 0;
437 /* Set approximate I/O buffer size. */
438 if (packet_is_interactive())
441 buffer_high = 64 * 1024;
443 /* Initialize max_fd to the maximum of the known file descriptors. */
447 if (fderr != -1 && fderr > max_fd)
449 if (connection_in > max_fd)
450 max_fd = connection_in;
451 if (connection_out > max_fd)
452 max_fd = connection_out;
454 /* Initialize Initialize buffers. */
455 buffer_init(&stdin_buffer);
456 buffer_init(&stdout_buffer);
457 buffer_init(&stderr_buffer);
460 * If we have no separate fderr (which is the case when we have a pty
461 * - there we cannot make difference between data sent to stdout and
462 * stderr), indicate that we have seen an EOF from stderr. This way
463 * we don\'t need to check the descriptor everywhere.
468 server_init_dispatch();
470 /* Main loop of the server for the interactive session mode. */
473 /* Process buffered packets from the client. */
474 process_buffered_input_packets();
477 * If we have received eof, and there is no more pending
478 * input data, cause a real eof by closing fdin.
480 if (stdin_eof && fdin != -1 && buffer_len(&stdin_buffer) == 0) {
487 shutdown(fdin, SHUT_WR); /* We will no longer send. */
491 /* Make packets from buffered stderr data to send to the client. */
492 make_packets_from_stderr_data();
495 * Make packets from buffered stdout data to send to the
496 * client. If there is very little to send, this arranges to
497 * not send them now, but to wait a short while to see if we
498 * are getting more data. This is necessary, as some systems
499 * wake up readers from a pty after each separate character.
501 max_time_milliseconds = 0;
502 stdout_buffer_bytes = buffer_len(&stdout_buffer);
503 if (stdout_buffer_bytes != 0 && stdout_buffer_bytes < 256 &&
504 stdout_buffer_bytes != previous_stdout_buffer_bytes) {
505 /* try again after a while */
506 max_time_milliseconds = 10;
509 make_packets_from_stdout_data();
511 previous_stdout_buffer_bytes = buffer_len(&stdout_buffer);
513 /* Send channel data to the client. */
514 if (packet_not_very_much_data_to_write())
515 channel_output_poll();
518 * Bail out of the loop if the program has closed its output
519 * descriptors, and we have no more data to send to the
520 * client, and there is no pending buffered data.
522 if (fdout_eof && fderr_eof && !packet_have_data_to_write() &&
523 buffer_len(&stdout_buffer) == 0 && buffer_len(&stderr_buffer) == 0) {
524 if (!channel_still_open())
526 if (!waiting_termination) {
527 const char *s = "Waiting for forwarded connections to terminate...\r\n";
529 waiting_termination = 1;
530 buffer_append(&stderr_buffer, s, strlen(s));
532 /* Display list of open channels. */
533 cp = channel_open_message();
534 buffer_append(&stderr_buffer, cp, strlen(cp));
538 /* Sleep in select() until we can do something. */
539 wait_until_can_do_something(&readset, &writeset,
540 max_time_milliseconds);
542 /* Process any channel events. */
543 channel_after_select(&readset, &writeset);
545 /* Process input from the client and from program stdout/stderr. */
546 process_input(&readset);
548 /* Process output to the client and to program stdin. */
549 process_output(&writeset);
552 /* Cleanup and termination code. */
554 /* Wait until all output has been sent to the client. */
557 debug("End of interactive session; stdin %ld, stdout (read %ld, sent %ld), stderr %ld bytes.",
558 stdin_bytes, fdout_bytes, stdout_bytes, stderr_bytes);
560 /* Free and clear the buffers. */
561 buffer_free(&stdin_buffer);
562 buffer_free(&stdout_buffer);
563 buffer_free(&stderr_buffer);
565 /* Close the file descriptors. */
578 /* Stop listening for channels; this removes unix domain sockets. */
579 channel_stop_listening();
581 /* Wait for the child to exit. Get its exit status. */
582 wait_pid = wait(&wait_status);
583 if (wait_pid == -1) {
585 * It is possible that the wait was handled by SIGCHLD
586 * handler. This may result in either: this call
587 * returning with EINTR, or: this call returning ECHILD.
589 if (child_terminated)
590 wait_status = child_wait_status;
592 packet_disconnect("wait: %.100s", strerror(errno));
594 /* Check if it matches the process we forked. */
596 error("Strange, wait returned pid %d, expected %d",
600 /* We no longer want our SIGCHLD handler to be called. */
601 signal(SIGCHLD, SIG_DFL);
603 /* Check if it exited normally. */
604 if (WIFEXITED(wait_status)) {
605 /* Yes, normal exit. Get exit status and send it to the client. */
606 debug("Command exited with status %d.", WEXITSTATUS(wait_status));
607 packet_start(SSH_SMSG_EXITSTATUS);
608 packet_put_int(WEXITSTATUS(wait_status));
613 * Wait for exit confirmation. Note that there might be
614 * other packets coming before it; however, the program has
615 * already died so we just ignore them. The client is
616 * supposed to respond with the confirmation when it receives
621 type = packet_read(&plen);
623 while (type != SSH_CMSG_EXIT_CONFIRMATION);
625 debug("Received exit confirmation.");
628 /* Check if the program terminated due to a signal. */
629 if (WIFSIGNALED(wait_status))
630 packet_disconnect("Command terminated on signal %d.",
631 WTERMSIG(wait_status));
633 /* Some weird exit cause. Just exit. */
634 packet_disconnect("wait returned status %04x.", wait_status);
641 fd_set readset, writeset;
646 debug("Entering interactive session for SSH2.");
648 signal(SIGCHLD, sigchld_handler2);
649 signal(SIGPIPE, SIG_IGN);
650 child_terminated = 0;
651 connection_in = packet_get_connection_in();
652 connection_out = packet_get_connection_out();
653 max_fd = connection_in;
654 if (connection_out > max_fd)
655 max_fd = connection_out;
656 server_init_dispatch();
659 process_buffered_input_packets();
660 if (!had_channel && channel_still_open())
662 if (had_channel && !channel_still_open()) {
663 debug("!channel_still_open.");
666 if (packet_not_very_much_data_to_write())
667 channel_output_poll();
668 wait_until_can_do_something(&readset, &writeset, 0);
669 if (child_terminated) {
670 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
671 session_close_by_pid(pid, status);
672 child_terminated = 0;
674 channel_after_select(&readset, &writeset);
675 process_input(&readset);
676 process_output(&writeset);
678 signal(SIGCHLD, SIG_DFL);
679 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
680 session_close_by_pid(pid, status);
681 channel_stop_listening();
685 server_input_stdin_data(int type, int plen, void *ctxt)
690 /* Stdin data from the client. Append it to the buffer. */
691 /* Ignore any data if the client has closed stdin. */
694 data = packet_get_string(&data_len);
695 packet_integrity_check(plen, (4 + data_len), type);
696 buffer_append(&stdin_buffer, data, data_len);
697 memset(data, 0, data_len);
702 server_input_eof(int type, int plen, void *ctxt)
705 * Eof from the client. The stdin descriptor to the
706 * program will be closed when all buffered data has
709 debug("EOF received for stdin.");
710 packet_integrity_check(plen, 0, type);
715 server_input_window_size(int type, int plen, void *ctxt)
717 int row = packet_get_int();
718 int col = packet_get_int();
719 int xpixel = packet_get_int();
720 int ypixel = packet_get_int();
722 debug("Window change received.");
723 packet_integrity_check(plen, 4 * 4, type);
725 pty_change_window_size(fdin, row, col, xpixel, ypixel);
729 server_request_direct_tcpip(char *ctype)
732 char *target, *originator;
733 int target_port, originator_port;
735 target = packet_get_string(NULL);
736 target_port = packet_get_int();
737 originator = packet_get_string(NULL);
738 originator_port = packet_get_int();
741 debug("server_request_direct_tcpip: originator %s port %d, target %s port %d",
742 originator, originator_port, target, target_port);
744 /* XXX check permission */
745 if (no_port_forwarding_flag || !options.allow_tcp_forwarding) {
750 sock = channel_connect_to(target, target_port);
755 newch = channel_new(ctype, SSH_CHANNEL_CONNECTING,
756 sock, sock, -1, CHAN_TCP_WINDOW_DEFAULT,
757 CHAN_TCP_PACKET_DEFAULT, 0, xstrdup("direct-tcpip"), 1);
758 return (newch >= 0) ? channel_lookup(newch) : NULL;
762 server_request_session(char *ctype)
766 debug("input_session_request");
769 * A server session has no fd to read or write until a
770 * CHANNEL_REQUEST for a shell is made, so we set the type to
771 * SSH_CHANNEL_LARVAL. Additionally, a callback for handling all
772 * CHANNEL_REQUEST messages is registered.
774 newch = channel_new(ctype, SSH_CHANNEL_LARVAL,
775 -1, -1, -1, 0, CHAN_SES_PACKET_DEFAULT,
776 0, xstrdup("server-session"), 1);
777 if (session_open(newch) == 1) {
778 channel_register_callback(newch, SSH2_MSG_CHANNEL_REQUEST,
779 session_input_channel_req, (void *)0);
780 channel_register_cleanup(newch, session_close_by_channel);
781 return channel_lookup(newch);
783 debug("session open failed, free channel %d", newch);
790 server_input_channel_open(int type, int plen, void *ctxt)
799 ctype = packet_get_string(&len);
800 rchan = packet_get_int();
801 rwindow = packet_get_int();
802 rmaxpack = packet_get_int();
804 debug("server_input_channel_open: ctype %s rchan %d win %d max %d",
805 ctype, rchan, rwindow, rmaxpack);
807 if (strcmp(ctype, "session") == 0) {
808 c = server_request_session(ctype);
809 } else if (strcmp(ctype, "direct-tcpip") == 0) {
810 c = server_request_direct_tcpip(ctype);
813 debug("server_input_channel_open: confirm %s", ctype);
814 c->remote_id = rchan;
815 c->remote_window = rwindow;
816 c->remote_maxpacket = rmaxpack;
818 packet_start(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION);
819 packet_put_int(c->remote_id);
820 packet_put_int(c->self);
821 packet_put_int(c->local_window);
822 packet_put_int(c->local_maxpacket);
825 debug("server_input_channel_open: failure %s", ctype);
826 packet_start(SSH2_MSG_CHANNEL_OPEN_FAILURE);
827 packet_put_int(rchan);
828 packet_put_int(SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED);
829 packet_put_cstring("bla bla");
830 packet_put_cstring("");
837 server_input_global_request(int type, int plen, void *ctxt)
843 rtype = packet_get_string(NULL);
844 want_reply = packet_get_char();
845 debug("server_input_global_request: rtype %s want_reply %d", rtype, want_reply);
847 if (strcmp(rtype, "tcpip-forward") == 0) {
849 char *listen_address;
852 pw = auth_get_user();
854 fatal("server_input_global_request: no user");
855 listen_address = packet_get_string(NULL); /* XXX currently ignored */
856 listen_port = (u_short)packet_get_int();
857 debug("server_input_global_request: tcpip-forward listen %s port %d",
858 listen_address, listen_port);
860 /* check permissions */
861 if (!options.allow_tcp_forwarding ||
862 no_port_forwarding_flag ||
863 (listen_port < IPPORT_RESERVED && pw->pw_uid != 0)) {
865 packet_send_debug("Server has disabled port forwarding.");
867 /* Start listening on the port */
868 channel_request_forwarding(
869 listen_address, listen_port,
870 /*unspec host_to_connect*/ "<unspec host>",
871 /*unspec port_to_connect*/ 0,
872 options.gateway_ports, /*remote*/ 1);
875 xfree(listen_address);
878 packet_start(success ?
879 SSH2_MSG_REQUEST_SUCCESS : SSH2_MSG_REQUEST_FAILURE);
887 server_init_dispatch_20()
889 debug("server_init_dispatch_20");
890 dispatch_init(&dispatch_protocol_error);
891 dispatch_set(SSH2_MSG_CHANNEL_CLOSE, &channel_input_oclose);
892 dispatch_set(SSH2_MSG_CHANNEL_DATA, &channel_input_data);
893 dispatch_set(SSH2_MSG_CHANNEL_EOF, &channel_input_ieof);
894 dispatch_set(SSH2_MSG_CHANNEL_EXTENDED_DATA, &channel_input_extended_data);
895 dispatch_set(SSH2_MSG_CHANNEL_OPEN, &server_input_channel_open);
896 dispatch_set(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
897 dispatch_set(SSH2_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
898 dispatch_set(SSH2_MSG_CHANNEL_REQUEST, &channel_input_channel_request);
899 dispatch_set(SSH2_MSG_CHANNEL_WINDOW_ADJUST, &channel_input_window_adjust);
900 dispatch_set(SSH2_MSG_GLOBAL_REQUEST, &server_input_global_request);
903 server_init_dispatch_13()
905 debug("server_init_dispatch_13");
907 dispatch_set(SSH_CMSG_EOF, &server_input_eof);
908 dispatch_set(SSH_CMSG_STDIN_DATA, &server_input_stdin_data);
909 dispatch_set(SSH_CMSG_WINDOW_SIZE, &server_input_window_size);
910 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_close);
911 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_close_confirmation);
912 dispatch_set(SSH_MSG_CHANNEL_DATA, &channel_input_data);
913 dispatch_set(SSH_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
914 dispatch_set(SSH_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
915 dispatch_set(SSH_MSG_PORT_OPEN, &channel_input_port_open);
918 server_init_dispatch_15()
920 server_init_dispatch_13();
921 debug("server_init_dispatch_15");
922 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_ieof);
923 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_oclose);
926 server_init_dispatch()
929 server_init_dispatch_20();
931 server_init_dispatch_13();
933 server_init_dispatch_15();