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 1.43 2001/01/29 16:55:37 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. */
78 * This SIGCHLD kludge is used to detect when the child exits. The server
79 * will exit after that, as soon as forwarded connections have terminated.
82 static pid_t child_pid; /* Pid of the child. */
83 static volatile int child_terminated; /* The child has terminated. */
84 static volatile int child_wait_status; /* Status from wait(). */
86 void server_init_dispatch(void);
89 sigchld_handler(int sig)
91 int save_errno = errno;
94 debug("Received SIGCHLD.");
95 wait_pid = wait((int *) &child_wait_status);
97 if (wait_pid != child_pid)
98 error("Strange, got SIGCHLD and wait returned pid %d but child is %d",
100 if (WIFEXITED(child_wait_status) ||
101 WIFSIGNALED(child_wait_status))
102 child_terminated = 1;
104 signal(SIGCHLD, sigchld_handler);
108 sigchld_handler2(int sig)
110 int save_errno = errno;
111 debug("Received SIGCHLD.");
112 child_terminated = 1;
113 mysignal(SIGCHLD, sigchld_handler2);
118 * Make packets from buffered stderr data, and buffer it for sending
122 make_packets_from_stderr_data()
126 /* Send buffered stderr data to the client. */
127 while (buffer_len(&stderr_buffer) > 0 &&
128 packet_not_very_much_data_to_write()) {
129 len = buffer_len(&stderr_buffer);
130 if (packet_is_interactive()) {
134 /* Keep the packets at reasonable size. */
135 if (len > packet_get_maxsize())
136 len = packet_get_maxsize();
138 packet_start(SSH_SMSG_STDERR_DATA);
139 packet_put_string(buffer_ptr(&stderr_buffer), len);
141 buffer_consume(&stderr_buffer, len);
147 * Make packets from buffered stdout data, and buffer it for sending to the
151 make_packets_from_stdout_data()
155 /* Send buffered stdout data to the client. */
156 while (buffer_len(&stdout_buffer) > 0 &&
157 packet_not_very_much_data_to_write()) {
158 len = buffer_len(&stdout_buffer);
159 if (packet_is_interactive()) {
163 /* Keep the packets at reasonable size. */
164 if (len > packet_get_maxsize())
165 len = packet_get_maxsize();
167 packet_start(SSH_SMSG_STDOUT_DATA);
168 packet_put_string(buffer_ptr(&stdout_buffer), len);
170 buffer_consume(&stdout_buffer, len);
176 * Sleep in select() until we can do something. This will initialize the
177 * select masks. Upon return, the masks will indicate which descriptors
178 * have data or can accept data. Optionally, a maximum time can be specified
179 * for the duration of the wait (0 = infinite).
182 wait_until_can_do_something(fd_set **readsetp, fd_set **writesetp, int *maxfdp,
183 u_int max_time_milliseconds)
185 struct timeval tv, *tvp;
188 /* When select fails we restart from here. */
191 /* Allocate and update select() masks for channel descriptors. */
192 channel_prepare_select(readsetp, writesetp, maxfdp);
195 /* wrong: bad condition XXX */
196 if (channel_not_very_much_buffered_data())
197 FD_SET(connection_in, *readsetp);
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, *readsetp);
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, *readsetp);
214 FD_SET(fderr, *readsetp);
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, *writesetp);
225 * If we have buffered packet data going to the client, mark that
228 if (packet_have_data_to_write())
229 FD_SET(connection_out, *writesetp);
232 * If child has terminated and there is enough buffer space to read
233 * from it, then read as much as is available and exit.
235 if (child_terminated && packet_not_very_much_data_to_write())
236 if (max_time_milliseconds == 0)
237 max_time_milliseconds = 100;
239 if (max_time_milliseconds == 0)
242 tv.tv_sec = max_time_milliseconds / 1000;
243 tv.tv_usec = 1000 * (max_time_milliseconds % 1000);
247 debug2("tvp!=NULL kid %d mili %d", child_terminated, max_time_milliseconds);
249 /* Wait for something to happen, or the timeout to expire. */
250 ret = select((*maxfdp)+1, *readsetp, *writesetp, NULL, tvp);
254 error("select: %.100s", strerror(errno));
261 * Processes input from the client and the program. Input data is stored
262 * in buffers and processed later.
265 process_input(fd_set * readset)
270 /* Read and buffer any input data from the client. */
271 if (FD_ISSET(connection_in, readset)) {
272 len = read(connection_in, buf, sizeof(buf));
274 verbose("Connection closed by remote host.");
276 } else if (len < 0) {
277 if (errno != EINTR && errno != EAGAIN) {
278 verbose("Read error from remote host: %.100s", strerror(errno));
282 /* Buffer any received data. */
283 packet_process_incoming(buf, len);
289 /* Read and buffer any available stdout data from the program. */
290 if (!fdout_eof && FD_ISSET(fdout, readset)) {
291 len = read(fdout, buf, sizeof(buf));
292 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
294 } else if (len <= 0) {
297 buffer_append(&stdout_buffer, buf, len);
301 /* Read and buffer any available stderr data from the program. */
302 if (!fderr_eof && FD_ISSET(fderr, readset)) {
303 len = read(fderr, buf, sizeof(buf));
304 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
306 } else if (len <= 0) {
309 buffer_append(&stderr_buffer, buf, len);
315 * Sends data from internal buffers to client program stdin.
318 process_output(fd_set * writeset)
322 /* Write buffered data to program stdin. */
323 if (!compat20 && fdin != -1 && FD_ISSET(fdin, writeset)) {
324 len = write(fdin, buffer_ptr(&stdin_buffer),
325 buffer_len(&stdin_buffer));
326 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
328 } else if (len <= 0) {
335 shutdown(fdin, SHUT_WR); /* We will no longer send. */
339 /* Successful write. Consume the data from the buffer. */
340 buffer_consume(&stdin_buffer, len);
341 /* Update the count of bytes written to the program. */
345 /* Send any buffered packet data to the client. */
346 if (FD_ISSET(connection_out, writeset))
351 * Wait until all buffered output has been sent to the client.
352 * This is used when the program terminates.
357 /* Send any buffered stdout data to the client. */
358 if (buffer_len(&stdout_buffer) > 0) {
359 packet_start(SSH_SMSG_STDOUT_DATA);
360 packet_put_string(buffer_ptr(&stdout_buffer),
361 buffer_len(&stdout_buffer));
363 /* Update the count of sent bytes. */
364 stdout_bytes += buffer_len(&stdout_buffer);
366 /* Send any buffered stderr data to the client. */
367 if (buffer_len(&stderr_buffer) > 0) {
368 packet_start(SSH_SMSG_STDERR_DATA);
369 packet_put_string(buffer_ptr(&stderr_buffer),
370 buffer_len(&stderr_buffer));
372 /* Update the count of sent bytes. */
373 stderr_bytes += buffer_len(&stderr_buffer);
375 /* Wait until all buffered data has been written to the client. */
380 process_buffered_input_packets()
382 dispatch_run(DISPATCH_NONBLOCK, NULL, NULL);
386 * Performs the interactive session. This handles data transmission between
387 * the client and the program. Note that the notion of stdin, stdout, and
388 * stderr in this function is sort of reversed: this function writes to
389 * stdin (of the child program), and reads from stdout and stderr (of the
393 server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg)
395 fd_set *readset = NULL, *writeset = NULL;
397 int wait_status; /* Status returned by wait(). */
398 pid_t wait_pid; /* pid returned by wait(). */
399 int waiting_termination = 0; /* Have displayed waiting close message. */
400 u_int max_time_milliseconds;
401 u_int previous_stdout_buffer_bytes;
402 u_int stdout_buffer_bytes;
405 debug("Entering interactive session.");
407 /* Initialize the SIGCHLD kludge. */
409 child_terminated = 0;
410 signal(SIGCHLD, sigchld_handler);
411 signal(SIGPIPE, SIG_IGN);
413 /* Initialize our global variables. */
421 /* we don't have stderr for interactive terminal sessions, see below */
425 connection_in = packet_get_connection_in();
426 connection_out = packet_get_connection_out();
428 previous_stdout_buffer_bytes = 0;
430 /* Set approximate I/O buffer size. */
431 if (packet_is_interactive())
434 buffer_high = 64 * 1024;
436 /* Initialize max_fd to the maximum of the known file descriptors. */
437 max_fd = MAX(fdin, fdout);
439 max_fd = MAX(max_fd, fderr);
440 max_fd = MAX(max_fd, connection_in);
441 max_fd = MAX(max_fd, connection_out);
443 /* Initialize Initialize buffers. */
444 buffer_init(&stdin_buffer);
445 buffer_init(&stdout_buffer);
446 buffer_init(&stderr_buffer);
449 * If we have no separate fderr (which is the case when we have a pty
450 * - there we cannot make difference between data sent to stdout and
451 * stderr), indicate that we have seen an EOF from stderr. This way
452 * we don\'t need to check the descriptor everywhere.
457 server_init_dispatch();
459 /* Main loop of the server for the interactive session mode. */
462 /* Process buffered packets from the client. */
463 process_buffered_input_packets();
466 * If we have received eof, and there is no more pending
467 * input data, cause a real eof by closing fdin.
469 if (stdin_eof && fdin != -1 && buffer_len(&stdin_buffer) == 0) {
476 shutdown(fdin, SHUT_WR); /* We will no longer send. */
480 /* Make packets from buffered stderr data to send to the client. */
481 make_packets_from_stderr_data();
484 * Make packets from buffered stdout data to send to the
485 * client. If there is very little to send, this arranges to
486 * not send them now, but to wait a short while to see if we
487 * are getting more data. This is necessary, as some systems
488 * wake up readers from a pty after each separate character.
490 max_time_milliseconds = 0;
491 stdout_buffer_bytes = buffer_len(&stdout_buffer);
492 if (stdout_buffer_bytes != 0 && stdout_buffer_bytes < 256 &&
493 stdout_buffer_bytes != previous_stdout_buffer_bytes) {
494 /* try again after a while */
495 max_time_milliseconds = 10;
498 make_packets_from_stdout_data();
500 previous_stdout_buffer_bytes = buffer_len(&stdout_buffer);
502 /* Send channel data to the client. */
503 if (packet_not_very_much_data_to_write())
504 channel_output_poll();
507 * Bail out of the loop if the program has closed its output
508 * descriptors, and we have no more data to send to the
509 * client, and there is no pending buffered data.
511 if (fdout_eof && fderr_eof && !packet_have_data_to_write() &&
512 buffer_len(&stdout_buffer) == 0 && buffer_len(&stderr_buffer) == 0) {
513 if (!channel_still_open())
515 if (!waiting_termination) {
516 const char *s = "Waiting for forwarded connections to terminate...\r\n";
518 waiting_termination = 1;
519 buffer_append(&stderr_buffer, s, strlen(s));
521 /* Display list of open channels. */
522 cp = channel_open_message();
523 buffer_append(&stderr_buffer, cp, strlen(cp));
527 /* Sleep in select() until we can do something. */
528 wait_until_can_do_something(&readset, &writeset, &max_fd,
529 max_time_milliseconds);
531 /* Process any channel events. */
532 channel_after_select(readset, writeset);
534 /* Process input from the client and from program stdout/stderr. */
535 process_input(readset);
537 /* Process output to the client and to program stdin. */
538 process_output(writeset);
545 /* Cleanup and termination code. */
547 /* Wait until all output has been sent to the client. */
550 debug("End of interactive session; stdin %ld, stdout (read %ld, sent %ld), stderr %ld bytes.",
551 stdin_bytes, fdout_bytes, stdout_bytes, stderr_bytes);
553 /* Free and clear the buffers. */
554 buffer_free(&stdin_buffer);
555 buffer_free(&stdout_buffer);
556 buffer_free(&stderr_buffer);
558 /* Close the file descriptors. */
571 /* Stop listening for channels; this removes unix domain sockets. */
572 channel_stop_listening();
574 /* Wait for the child to exit. Get its exit status. */
575 wait_pid = wait(&wait_status);
576 if (wait_pid == -1) {
578 * It is possible that the wait was handled by SIGCHLD
579 * handler. This may result in either: this call
580 * returning with EINTR, or: this call returning ECHILD.
582 if (child_terminated)
583 wait_status = child_wait_status;
585 packet_disconnect("wait: %.100s", strerror(errno));
587 /* Check if it matches the process we forked. */
589 error("Strange, wait returned pid %d, expected %d",
593 /* We no longer want our SIGCHLD handler to be called. */
594 signal(SIGCHLD, SIG_DFL);
596 /* Check if it exited normally. */
597 if (WIFEXITED(wait_status)) {
598 /* Yes, normal exit. Get exit status and send it to the client. */
599 debug("Command exited with status %d.", WEXITSTATUS(wait_status));
600 packet_start(SSH_SMSG_EXITSTATUS);
601 packet_put_int(WEXITSTATUS(wait_status));
606 * Wait for exit confirmation. Note that there might be
607 * other packets coming before it; however, the program has
608 * already died so we just ignore them. The client is
609 * supposed to respond with the confirmation when it receives
614 type = packet_read(&plen);
616 while (type != SSH_CMSG_EXIT_CONFIRMATION);
618 debug("Received exit confirmation.");
621 /* Check if the program terminated due to a signal. */
622 if (WIFSIGNALED(wait_status))
623 packet_disconnect("Command terminated on signal %d.",
624 WTERMSIG(wait_status));
626 /* Some weird exit cause. Just exit. */
627 packet_disconnect("wait returned status %04x.", wait_status);
634 fd_set *readset = NULL, *writeset = NULL;
640 debug("Entering interactive session for SSH2.");
642 mysignal(SIGCHLD, sigchld_handler2);
643 signal(SIGPIPE, SIG_IGN);
644 child_terminated = 0;
645 connection_in = packet_get_connection_in();
646 connection_out = packet_get_connection_out();
648 max_fd = MAX(connection_in, connection_out);
650 server_init_dispatch();
653 process_buffered_input_packets();
654 if (!had_channel && channel_still_open())
656 if (had_channel && !channel_still_open()) {
657 debug("!channel_still_open.");
660 if (packet_not_very_much_data_to_write())
661 channel_output_poll();
662 wait_until_can_do_something(&readset, &writeset, &max_fd, 0);
663 if (child_terminated) {
664 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
665 session_close_by_pid(pid, status);
666 child_terminated = 0;
668 channel_after_select(readset, writeset);
669 process_input(readset);
670 process_output(writeset);
677 signal(SIGCHLD, SIG_DFL);
678 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
679 session_close_by_pid(pid, status);
680 channel_stop_listening();
684 server_input_stdin_data(int type, int plen, void *ctxt)
689 /* Stdin data from the client. Append it to the buffer. */
690 /* Ignore any data if the client has closed stdin. */
693 data = packet_get_string(&data_len);
694 packet_integrity_check(plen, (4 + data_len), type);
695 buffer_append(&stdin_buffer, data, data_len);
696 memset(data, 0, data_len);
701 server_input_eof(int type, int plen, void *ctxt)
704 * Eof from the client. The stdin descriptor to the
705 * program will be closed when all buffered data has
708 debug("EOF received for stdin.");
709 packet_integrity_check(plen, 0, type);
714 server_input_window_size(int type, int plen, void *ctxt)
716 int row = packet_get_int();
717 int col = packet_get_int();
718 int xpixel = packet_get_int();
719 int ypixel = packet_get_int();
721 debug("Window change received.");
722 packet_integrity_check(plen, 4 * 4, type);
724 pty_change_window_size(fdin, row, col, xpixel, ypixel);
728 server_request_direct_tcpip(char *ctype)
731 char *target, *originator;
732 int target_port, originator_port;
734 target = packet_get_string(NULL);
735 target_port = packet_get_int();
736 originator = packet_get_string(NULL);
737 originator_port = packet_get_int();
740 debug("server_request_direct_tcpip: originator %s port %d, target %s port %d",
741 originator, originator_port, target, target_port);
743 /* XXX check permission */
744 if (no_port_forwarding_flag || !options.allow_tcp_forwarding) {
749 sock = channel_connect_to(target, target_port);
754 newch = channel_new(ctype, SSH_CHANNEL_CONNECTING,
755 sock, sock, -1, CHAN_TCP_WINDOW_DEFAULT,
756 CHAN_TCP_PACKET_DEFAULT, 0, xstrdup("direct-tcpip"), 1);
757 return (newch >= 0) ? channel_lookup(newch) : NULL;
761 server_request_session(char *ctype)
765 debug("input_session_request");
768 * A server session has no fd to read or write until a
769 * CHANNEL_REQUEST for a shell is made, so we set the type to
770 * SSH_CHANNEL_LARVAL. Additionally, a callback for handling all
771 * CHANNEL_REQUEST messages is registered.
773 newch = channel_new(ctype, SSH_CHANNEL_LARVAL,
774 -1, -1, -1, 0, CHAN_SES_PACKET_DEFAULT,
775 0, xstrdup("server-session"), 1);
776 if (session_open(newch) == 1) {
777 channel_register_callback(newch, SSH2_MSG_CHANNEL_REQUEST,
778 session_input_channel_req, (void *)0);
779 channel_register_cleanup(newch, session_close_by_channel);
780 return channel_lookup(newch);
782 debug("session open failed, free channel %d", newch);
789 server_input_channel_open(int type, int plen, void *ctxt)
798 ctype = packet_get_string(&len);
799 rchan = packet_get_int();
800 rwindow = packet_get_int();
801 rmaxpack = packet_get_int();
803 debug("server_input_channel_open: ctype %s rchan %d win %d max %d",
804 ctype, rchan, rwindow, rmaxpack);
806 if (strcmp(ctype, "session") == 0) {
807 c = server_request_session(ctype);
808 } else if (strcmp(ctype, "direct-tcpip") == 0) {
809 c = server_request_direct_tcpip(ctype);
812 debug("server_input_channel_open: confirm %s", ctype);
813 c->remote_id = rchan;
814 c->remote_window = rwindow;
815 c->remote_maxpacket = rmaxpack;
817 packet_start(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION);
818 packet_put_int(c->remote_id);
819 packet_put_int(c->self);
820 packet_put_int(c->local_window);
821 packet_put_int(c->local_maxpacket);
824 debug("server_input_channel_open: failure %s", ctype);
825 packet_start(SSH2_MSG_CHANNEL_OPEN_FAILURE);
826 packet_put_int(rchan);
827 packet_put_int(SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED);
828 packet_put_cstring("bla bla");
829 packet_put_cstring("");
836 server_input_global_request(int type, int plen, void *ctxt)
842 rtype = packet_get_string(NULL);
843 want_reply = packet_get_char();
844 debug("server_input_global_request: rtype %s want_reply %d", rtype, want_reply);
846 if (strcmp(rtype, "tcpip-forward") == 0) {
848 char *listen_address;
851 pw = auth_get_user();
853 fatal("server_input_global_request: no user");
854 listen_address = packet_get_string(NULL); /* XXX currently ignored */
855 listen_port = (u_short)packet_get_int();
856 debug("server_input_global_request: tcpip-forward listen %s port %d",
857 listen_address, listen_port);
859 /* check permissions */
860 if (!options.allow_tcp_forwarding ||
861 no_port_forwarding_flag ||
862 (listen_port < IPPORT_RESERVED && pw->pw_uid != 0)) {
864 packet_send_debug("Server has disabled port forwarding.");
866 /* Start listening on the port */
867 channel_request_forwarding(
868 listen_address, listen_port,
869 /*unspec host_to_connect*/ "<unspec host>",
870 /*unspec port_to_connect*/ 0,
871 options.gateway_ports, /*remote*/ 1);
874 xfree(listen_address);
877 packet_start(success ?
878 SSH2_MSG_REQUEST_SUCCESS : SSH2_MSG_REQUEST_FAILURE);
886 server_init_dispatch_20()
888 debug("server_init_dispatch_20");
889 dispatch_init(&dispatch_protocol_error);
890 dispatch_set(SSH2_MSG_CHANNEL_CLOSE, &channel_input_oclose);
891 dispatch_set(SSH2_MSG_CHANNEL_DATA, &channel_input_data);
892 dispatch_set(SSH2_MSG_CHANNEL_EOF, &channel_input_ieof);
893 dispatch_set(SSH2_MSG_CHANNEL_EXTENDED_DATA, &channel_input_extended_data);
894 dispatch_set(SSH2_MSG_CHANNEL_OPEN, &server_input_channel_open);
895 dispatch_set(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
896 dispatch_set(SSH2_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
897 dispatch_set(SSH2_MSG_CHANNEL_REQUEST, &channel_input_channel_request);
898 dispatch_set(SSH2_MSG_CHANNEL_WINDOW_ADJUST, &channel_input_window_adjust);
899 dispatch_set(SSH2_MSG_GLOBAL_REQUEST, &server_input_global_request);
902 server_init_dispatch_13()
904 debug("server_init_dispatch_13");
906 dispatch_set(SSH_CMSG_EOF, &server_input_eof);
907 dispatch_set(SSH_CMSG_STDIN_DATA, &server_input_stdin_data);
908 dispatch_set(SSH_CMSG_WINDOW_SIZE, &server_input_window_size);
909 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_close);
910 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_close_confirmation);
911 dispatch_set(SSH_MSG_CHANNEL_DATA, &channel_input_data);
912 dispatch_set(SSH_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
913 dispatch_set(SSH_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
914 dispatch_set(SSH_MSG_PORT_OPEN, &channel_input_port_open);
917 server_init_dispatch_15()
919 server_init_dispatch_13();
920 debug("server_init_dispatch_15");
921 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_ieof);
922 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_oclose);
925 server_init_dispatch()
928 server_init_dispatch_20();
930 server_init_dispatch_13();
932 server_init_dispatch_15();