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 1.38 2000/12/19 23:17:58 markus Exp $");
52 #include "auth-options.h"
55 extern ServerOptions options;
57 static Buffer stdin_buffer; /* Buffer for stdin data. */
58 static Buffer stdout_buffer; /* Buffer for stdout data. */
59 static Buffer stderr_buffer; /* Buffer for stderr data. */
60 static int fdin; /* Descriptor for stdin (for writing) */
61 static int fdout; /* Descriptor for stdout (for reading);
62 May be same number as fdin. */
63 static int fderr; /* Descriptor for stderr. May be -1. */
64 static long stdin_bytes = 0; /* Number of bytes written to stdin. */
65 static long stdout_bytes = 0; /* Number of stdout bytes sent to client. */
66 static long stderr_bytes = 0; /* Number of stderr bytes sent to client. */
67 static long fdout_bytes = 0; /* Number of stdout bytes read from program. */
68 static int stdin_eof = 0; /* EOF message received from client. */
69 static int fdout_eof = 0; /* EOF encountered reading from fdout. */
70 static int fderr_eof = 0; /* EOF encountered readung from fderr. */
71 static int connection_in; /* Connection to client (input). */
72 static int connection_out; /* Connection to client (output). */
73 static u_int buffer_high;/* "Soft" max buffer size. */
74 static int max_fd; /* Max file descriptor number for select(). */
77 * This SIGCHLD kludge is used to detect when the child exits. The server
78 * will exit after that, as soon as forwarded connections have terminated.
81 static pid_t child_pid; /* Pid of the child. */
82 static volatile int child_terminated; /* The child has terminated. */
83 static volatile int child_wait_status; /* Status from wait(). */
85 void server_init_dispatch(void);
88 sigchld_handler(int sig)
90 int save_errno = errno;
93 debug("Received SIGCHLD.");
94 wait_pid = wait((int *) &child_wait_status);
96 if (wait_pid != child_pid)
97 error("Strange, got SIGCHLD and wait returned pid %d but child is %d",
99 if (WIFEXITED(child_wait_status) ||
100 WIFSIGNALED(child_wait_status))
101 child_terminated = 1;
103 signal(SIGCHLD, sigchld_handler);
107 sigchld_handler2(int sig)
109 int save_errno = errno;
110 debug("Received SIGCHLD.");
111 child_terminated = 1;
112 signal(SIGCHLD, sigchld_handler2);
117 * Make packets from buffered stderr data, and buffer it for sending
121 make_packets_from_stderr_data()
125 /* Send buffered stderr data to the client. */
126 while (buffer_len(&stderr_buffer) > 0 &&
127 packet_not_very_much_data_to_write()) {
128 len = buffer_len(&stderr_buffer);
129 if (packet_is_interactive()) {
133 /* Keep the packets at reasonable size. */
134 if (len > packet_get_maxsize())
135 len = packet_get_maxsize();
137 packet_start(SSH_SMSG_STDERR_DATA);
138 packet_put_string(buffer_ptr(&stderr_buffer), len);
140 buffer_consume(&stderr_buffer, len);
146 * Make packets from buffered stdout data, and buffer it for sending to the
150 make_packets_from_stdout_data()
154 /* Send buffered stdout data to the client. */
155 while (buffer_len(&stdout_buffer) > 0 &&
156 packet_not_very_much_data_to_write()) {
157 len = buffer_len(&stdout_buffer);
158 if (packet_is_interactive()) {
162 /* Keep the packets at reasonable size. */
163 if (len > packet_get_maxsize())
164 len = packet_get_maxsize();
166 packet_start(SSH_SMSG_STDOUT_DATA);
167 packet_put_string(buffer_ptr(&stdout_buffer), len);
169 buffer_consume(&stdout_buffer, len);
175 * Sleep in select() until we can do something. This will initialize the
176 * select masks. Upon return, the masks will indicate which descriptors
177 * have data or can accept data. Optionally, a maximum time can be specified
178 * for the duration of the wait (0 = infinite).
181 wait_until_can_do_something(fd_set * readset, fd_set * writeset,
182 u_int max_time_milliseconds)
184 struct timeval tv, *tvp;
187 /* When select fails we restart from here. */
190 /* Initialize select() masks. */
195 /* wrong: bad condition XXX */
196 if (channel_not_very_much_buffered_data())
197 FD_SET(connection_in, readset);
200 * Read packets from the client unless we have too much
201 * buffered stdin or channel data.
203 if (buffer_len(&stdin_buffer) < buffer_high &&
204 channel_not_very_much_buffered_data())
205 FD_SET(connection_in, readset);
207 * If there is not too much data already buffered going to
208 * the client, try to get some more data from the program.
210 if (packet_not_very_much_data_to_write()) {
212 FD_SET(fdout, readset);
214 FD_SET(fderr, readset);
217 * If we have buffered data, try to write some of that data
220 if (fdin != -1 && buffer_len(&stdin_buffer) > 0)
221 FD_SET(fdin, writeset);
223 /* Set masks for channel descriptors. */
224 channel_prepare_select(readset, writeset);
227 * If we have buffered packet data going to the client, mark that
230 if (packet_have_data_to_write())
231 FD_SET(connection_out, writeset);
233 /* Update the maximum descriptor number if appropriate. */
234 if (channel_max_fd() > max_fd)
235 max_fd = channel_max_fd();
238 * If child has terminated and there is enough buffer space to read
239 * from it, then read as much as is available and exit.
241 if (child_terminated && packet_not_very_much_data_to_write())
242 if (max_time_milliseconds == 0)
243 max_time_milliseconds = 100;
245 if (max_time_milliseconds == 0)
248 tv.tv_sec = max_time_milliseconds / 1000;
249 tv.tv_usec = 1000 * (max_time_milliseconds % 1000);
253 debug("tvp!=NULL kid %d mili %d", child_terminated, max_time_milliseconds);
255 /* Wait for something to happen, or the timeout to expire. */
256 ret = select(max_fd + 1, readset, writeset, NULL, tvp);
260 error("select: %.100s", strerror(errno));
267 * Processes input from the client and the program. Input data is stored
268 * in buffers and processed later.
271 process_input(fd_set * readset)
276 /* Read and buffer any input data from the client. */
277 if (FD_ISSET(connection_in, readset)) {
278 len = read(connection_in, buf, sizeof(buf));
280 verbose("Connection closed by remote host.");
282 } else if (len < 0) {
283 if (errno != EINTR && errno != EAGAIN) {
284 verbose("Read error from remote host: %.100s", strerror(errno));
288 /* Buffer any received data. */
289 packet_process_incoming(buf, len);
295 /* Read and buffer any available stdout data from the program. */
296 if (!fdout_eof && FD_ISSET(fdout, readset)) {
297 len = read(fdout, buf, sizeof(buf));
298 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
300 } else if (len <= 0) {
303 buffer_append(&stdout_buffer, buf, len);
307 /* Read and buffer any available stderr data from the program. */
308 if (!fderr_eof && FD_ISSET(fderr, readset)) {
309 len = read(fderr, buf, sizeof(buf));
310 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
312 } else if (len <= 0) {
315 buffer_append(&stderr_buffer, buf, len);
321 * Sends data from internal buffers to client program stdin.
324 process_output(fd_set * writeset)
328 /* Write buffered data to program stdin. */
329 if (!compat20 && fdin != -1 && FD_ISSET(fdin, writeset)) {
330 len = write(fdin, buffer_ptr(&stdin_buffer),
331 buffer_len(&stdin_buffer));
332 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
334 } else if (len <= 0) {
341 shutdown(fdin, SHUT_WR); /* We will no longer send. */
345 /* Successful write. Consume the data from the buffer. */
346 buffer_consume(&stdin_buffer, len);
347 /* Update the count of bytes written to the program. */
351 /* Send any buffered packet data to the client. */
352 if (FD_ISSET(connection_out, writeset))
357 * Wait until all buffered output has been sent to the client.
358 * This is used when the program terminates.
363 /* Send any buffered stdout data to the client. */
364 if (buffer_len(&stdout_buffer) > 0) {
365 packet_start(SSH_SMSG_STDOUT_DATA);
366 packet_put_string(buffer_ptr(&stdout_buffer),
367 buffer_len(&stdout_buffer));
369 /* Update the count of sent bytes. */
370 stdout_bytes += buffer_len(&stdout_buffer);
372 /* Send any buffered stderr data to the client. */
373 if (buffer_len(&stderr_buffer) > 0) {
374 packet_start(SSH_SMSG_STDERR_DATA);
375 packet_put_string(buffer_ptr(&stderr_buffer),
376 buffer_len(&stderr_buffer));
378 /* Update the count of sent bytes. */
379 stderr_bytes += buffer_len(&stderr_buffer);
381 /* Wait until all buffered data has been written to the client. */
386 process_buffered_input_packets()
388 dispatch_run(DISPATCH_NONBLOCK, NULL, NULL);
392 * Performs the interactive session. This handles data transmission between
393 * the client and the program. Note that the notion of stdin, stdout, and
394 * stderr in this function is sort of reversed: this function writes to
395 * stdin (of the child program), and reads from stdout and stderr (of the
399 server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg)
401 fd_set readset, writeset;
402 int wait_status; /* Status returned by wait(). */
403 pid_t wait_pid; /* pid returned by wait(). */
404 int waiting_termination = 0; /* Have displayed waiting close message. */
405 u_int max_time_milliseconds;
406 u_int previous_stdout_buffer_bytes;
407 u_int stdout_buffer_bytes;
410 debug("Entering interactive session.");
412 /* Initialize the SIGCHLD kludge. */
414 child_terminated = 0;
415 signal(SIGCHLD, sigchld_handler);
416 signal(SIGPIPE, SIG_IGN);
418 /* Initialize our global variables. */
426 /* we don't have stderr for interactive terminal sessions, see below */
430 connection_in = packet_get_connection_in();
431 connection_out = packet_get_connection_out();
433 previous_stdout_buffer_bytes = 0;
435 /* Set approximate I/O buffer size. */
436 if (packet_is_interactive())
439 buffer_high = 64 * 1024;
441 /* Initialize max_fd to the maximum of the known file descriptors. */
445 if (fderr != -1 && fderr > max_fd)
447 if (connection_in > max_fd)
448 max_fd = connection_in;
449 if (connection_out > max_fd)
450 max_fd = connection_out;
452 /* Initialize Initialize buffers. */
453 buffer_init(&stdin_buffer);
454 buffer_init(&stdout_buffer);
455 buffer_init(&stderr_buffer);
458 * If we have no separate fderr (which is the case when we have a pty
459 * - there we cannot make difference between data sent to stdout and
460 * stderr), indicate that we have seen an EOF from stderr. This way
461 * we don\'t need to check the descriptor everywhere.
466 server_init_dispatch();
468 /* Main loop of the server for the interactive session mode. */
471 /* Process buffered packets from the client. */
472 process_buffered_input_packets();
475 * If we have received eof, and there is no more pending
476 * input data, cause a real eof by closing fdin.
478 if (stdin_eof && fdin != -1 && buffer_len(&stdin_buffer) == 0) {
485 shutdown(fdin, SHUT_WR); /* We will no longer send. */
489 /* Make packets from buffered stderr data to send to the client. */
490 make_packets_from_stderr_data();
493 * Make packets from buffered stdout data to send to the
494 * client. If there is very little to send, this arranges to
495 * not send them now, but to wait a short while to see if we
496 * are getting more data. This is necessary, as some systems
497 * wake up readers from a pty after each separate character.
499 max_time_milliseconds = 0;
500 stdout_buffer_bytes = buffer_len(&stdout_buffer);
501 if (stdout_buffer_bytes != 0 && stdout_buffer_bytes < 256 &&
502 stdout_buffer_bytes != previous_stdout_buffer_bytes) {
503 /* try again after a while */
504 max_time_milliseconds = 10;
507 make_packets_from_stdout_data();
509 previous_stdout_buffer_bytes = buffer_len(&stdout_buffer);
511 /* Send channel data to the client. */
512 if (packet_not_very_much_data_to_write())
513 channel_output_poll();
516 * Bail out of the loop if the program has closed its output
517 * descriptors, and we have no more data to send to the
518 * client, and there is no pending buffered data.
520 if (fdout_eof && fderr_eof && !packet_have_data_to_write() &&
521 buffer_len(&stdout_buffer) == 0 && buffer_len(&stderr_buffer) == 0) {
522 if (!channel_still_open())
524 if (!waiting_termination) {
525 const char *s = "Waiting for forwarded connections to terminate...\r\n";
527 waiting_termination = 1;
528 buffer_append(&stderr_buffer, s, strlen(s));
530 /* Display list of open channels. */
531 cp = channel_open_message();
532 buffer_append(&stderr_buffer, cp, strlen(cp));
536 /* Sleep in select() until we can do something. */
537 wait_until_can_do_something(&readset, &writeset,
538 max_time_milliseconds);
540 /* Process any channel events. */
541 channel_after_select(&readset, &writeset);
543 /* Process input from the client and from program stdout/stderr. */
544 process_input(&readset);
546 /* Process output to the client and to program stdin. */
547 process_output(&writeset);
550 /* Cleanup and termination code. */
552 /* Wait until all output has been sent to the client. */
555 debug("End of interactive session; stdin %ld, stdout (read %ld, sent %ld), stderr %ld bytes.",
556 stdin_bytes, fdout_bytes, stdout_bytes, stderr_bytes);
558 /* Free and clear the buffers. */
559 buffer_free(&stdin_buffer);
560 buffer_free(&stdout_buffer);
561 buffer_free(&stderr_buffer);
563 /* Close the file descriptors. */
576 /* Stop listening for channels; this removes unix domain sockets. */
577 channel_stop_listening();
579 /* Wait for the child to exit. Get its exit status. */
580 wait_pid = wait(&wait_status);
581 if (wait_pid == -1) {
583 * It is possible that the wait was handled by SIGCHLD
584 * handler. This may result in either: this call
585 * returning with EINTR, or: this call returning ECHILD.
587 if (child_terminated)
588 wait_status = child_wait_status;
590 packet_disconnect("wait: %.100s", strerror(errno));
592 /* Check if it matches the process we forked. */
594 error("Strange, wait returned pid %d, expected %d",
598 /* We no longer want our SIGCHLD handler to be called. */
599 signal(SIGCHLD, SIG_DFL);
601 /* Check if it exited normally. */
602 if (WIFEXITED(wait_status)) {
603 /* Yes, normal exit. Get exit status and send it to the client. */
604 debug("Command exited with status %d.", WEXITSTATUS(wait_status));
605 packet_start(SSH_SMSG_EXITSTATUS);
606 packet_put_int(WEXITSTATUS(wait_status));
611 * Wait for exit confirmation. Note that there might be
612 * other packets coming before it; however, the program has
613 * already died so we just ignore them. The client is
614 * supposed to respond with the confirmation when it receives
619 type = packet_read(&plen);
621 while (type != SSH_CMSG_EXIT_CONFIRMATION);
623 debug("Received exit confirmation.");
626 /* Check if the program terminated due to a signal. */
627 if (WIFSIGNALED(wait_status))
628 packet_disconnect("Command terminated on signal %d.",
629 WTERMSIG(wait_status));
631 /* Some weird exit cause. Just exit. */
632 packet_disconnect("wait returned status %04x.", wait_status);
639 fd_set readset, writeset;
644 debug("Entering interactive session for SSH2.");
646 signal(SIGCHLD, sigchld_handler2);
647 signal(SIGPIPE, SIG_IGN);
648 child_terminated = 0;
649 connection_in = packet_get_connection_in();
650 connection_out = packet_get_connection_out();
651 max_fd = connection_in;
652 if (connection_out > max_fd)
653 max_fd = connection_out;
654 server_init_dispatch();
657 process_buffered_input_packets();
658 if (!had_channel && channel_still_open())
660 if (had_channel && !channel_still_open()) {
661 debug("!channel_still_open.");
664 if (packet_not_very_much_data_to_write())
665 channel_output_poll();
666 wait_until_can_do_something(&readset, &writeset, 0);
667 if (child_terminated) {
668 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
669 session_close_by_pid(pid, status);
670 child_terminated = 0;
672 channel_after_select(&readset, &writeset);
673 process_input(&readset);
674 process_output(&writeset);
676 signal(SIGCHLD, SIG_DFL);
677 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
678 session_close_by_pid(pid, status);
679 channel_stop_listening();
683 server_input_stdin_data(int type, int plen, void *ctxt)
688 /* Stdin data from the client. Append it to the buffer. */
689 /* Ignore any data if the client has closed stdin. */
692 data = packet_get_string(&data_len);
693 packet_integrity_check(plen, (4 + data_len), type);
694 buffer_append(&stdin_buffer, data, data_len);
695 memset(data, 0, data_len);
700 server_input_eof(int type, int plen, void *ctxt)
703 * Eof from the client. The stdin descriptor to the
704 * program will be closed when all buffered data has
707 debug("EOF received for stdin.");
708 packet_integrity_check(plen, 0, type);
713 server_input_window_size(int type, int plen, void *ctxt)
715 int row = packet_get_int();
716 int col = packet_get_int();
717 int xpixel = packet_get_int();
718 int ypixel = packet_get_int();
720 debug("Window change received.");
721 packet_integrity_check(plen, 4 * 4, type);
723 pty_change_window_size(fdin, row, col, xpixel, ypixel);
727 server_request_direct_tcpip(char *ctype)
730 char *target, *originator;
731 int target_port, originator_port;
733 target = packet_get_string(NULL);
734 target_port = packet_get_int();
735 originator = packet_get_string(NULL);
736 originator_port = packet_get_int();
739 debug("server_request_direct_tcpip: originator %s port %d, target %s port %d",
740 originator, originator_port, target, target_port);
742 /* XXX check permission */
743 if (no_port_forwarding_flag || !options.allow_tcp_forwarding) {
748 sock = channel_connect_to(target, target_port);
753 newch = channel_new(ctype, SSH_CHANNEL_CONNECTING,
754 sock, sock, -1, CHAN_TCP_WINDOW_DEFAULT,
755 CHAN_TCP_PACKET_DEFAULT, 0, xstrdup("direct-tcpip"), 1);
756 return (newch >= 0) ? channel_lookup(newch) : NULL;
760 server_request_session(char *ctype)
764 debug("input_session_request");
767 * A server session has no fd to read or write until a
768 * CHANNEL_REQUEST for a shell is made, so we set the type to
769 * SSH_CHANNEL_LARVAL. Additionally, a callback for handling all
770 * CHANNEL_REQUEST messages is registered.
772 newch = channel_new(ctype, SSH_CHANNEL_LARVAL,
773 -1, -1, -1, 0, CHAN_SES_PACKET_DEFAULT,
774 0, xstrdup("server-session"), 1);
775 if (session_open(newch) == 1) {
776 channel_register_callback(newch, SSH2_MSG_CHANNEL_REQUEST,
777 session_input_channel_req, (void *)0);
778 channel_register_cleanup(newch, session_close_by_channel);
779 return channel_lookup(newch);
781 debug("session open failed, free channel %d", newch);
788 server_input_channel_open(int type, int plen, void *ctxt)
797 ctype = packet_get_string(&len);
798 rchan = packet_get_int();
799 rwindow = packet_get_int();
800 rmaxpack = packet_get_int();
802 debug("server_input_channel_open: ctype %s rchan %d win %d max %d",
803 ctype, rchan, rwindow, rmaxpack);
805 if (strcmp(ctype, "session") == 0) {
806 c = server_request_session(ctype);
807 } else if (strcmp(ctype, "direct-tcpip") == 0) {
808 c = server_request_direct_tcpip(ctype);
811 debug("server_input_channel_open: confirm %s", ctype);
812 c->remote_id = rchan;
813 c->remote_window = rwindow;
814 c->remote_maxpacket = rmaxpack;
816 packet_start(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION);
817 packet_put_int(c->remote_id);
818 packet_put_int(c->self);
819 packet_put_int(c->local_window);
820 packet_put_int(c->local_maxpacket);
823 debug("server_input_channel_open: failure %s", ctype);
824 packet_start(SSH2_MSG_CHANNEL_OPEN_FAILURE);
825 packet_put_int(rchan);
826 packet_put_int(SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED);
827 packet_put_cstring("bla bla");
828 packet_put_cstring("");
835 server_input_global_request(int type, int plen, void *ctxt)
841 rtype = packet_get_string(NULL);
842 want_reply = packet_get_char();
843 debug("server_input_global_request: rtype %s want_reply %d", rtype, want_reply);
845 if (strcmp(rtype, "tcpip-forward") == 0) {
847 char *listen_address;
850 pw = auth_get_user();
852 fatal("server_input_global_request: no user");
853 listen_address = packet_get_string(NULL); /* XXX currently ignored */
854 listen_port = (u_short)packet_get_int();
855 debug("server_input_global_request: tcpip-forward listen %s port %d",
856 listen_address, listen_port);
858 /* check permissions */
859 if (!options.allow_tcp_forwarding ||
860 no_port_forwarding_flag ||
861 (listen_port < IPPORT_RESERVED && pw->pw_uid != 0)) {
863 packet_send_debug("Server has disabled port forwarding.");
865 /* Start listening on the port */
866 channel_request_forwarding(
867 listen_address, listen_port,
868 /*unspec host_to_connect*/ "<unspec host>",
869 /*unspec port_to_connect*/ 0,
870 options.gateway_ports, /*remote*/ 1);
873 xfree(listen_address);
876 packet_start(success ?
877 SSH2_MSG_REQUEST_SUCCESS : SSH2_MSG_REQUEST_FAILURE);
885 server_init_dispatch_20()
887 debug("server_init_dispatch_20");
888 dispatch_init(&dispatch_protocol_error);
889 dispatch_set(SSH2_MSG_CHANNEL_CLOSE, &channel_input_oclose);
890 dispatch_set(SSH2_MSG_CHANNEL_DATA, &channel_input_data);
891 dispatch_set(SSH2_MSG_CHANNEL_EOF, &channel_input_ieof);
892 dispatch_set(SSH2_MSG_CHANNEL_EXTENDED_DATA, &channel_input_extended_data);
893 dispatch_set(SSH2_MSG_CHANNEL_OPEN, &server_input_channel_open);
894 dispatch_set(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
895 dispatch_set(SSH2_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
896 dispatch_set(SSH2_MSG_CHANNEL_REQUEST, &channel_input_channel_request);
897 dispatch_set(SSH2_MSG_CHANNEL_WINDOW_ADJUST, &channel_input_window_adjust);
898 dispatch_set(SSH2_MSG_GLOBAL_REQUEST, &server_input_global_request);
901 server_init_dispatch_13()
903 debug("server_init_dispatch_13");
905 dispatch_set(SSH_CMSG_EOF, &server_input_eof);
906 dispatch_set(SSH_CMSG_STDIN_DATA, &server_input_stdin_data);
907 dispatch_set(SSH_CMSG_WINDOW_SIZE, &server_input_window_size);
908 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_close);
909 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_close_confirmation);
910 dispatch_set(SSH_MSG_CHANNEL_DATA, &channel_input_data);
911 dispatch_set(SSH_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
912 dispatch_set(SSH_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
913 dispatch_set(SSH_MSG_PORT_OPEN, &channel_input_port_open);
916 server_init_dispatch_15()
918 server_init_dispatch_13();
919 debug("server_init_dispatch_15");
920 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_ieof);
921 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_oclose);
924 server_init_dispatch()
927 server_init_dispatch_20();
929 server_init_dispatch_13();
931 server_init_dispatch_15();