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 1.57 2001/04/04 20:25:37 markus Exp $");
53 #include "auth-options.h"
54 #include "serverloop.h"
58 extern ServerOptions options;
63 static Buffer stdin_buffer; /* Buffer for stdin data. */
64 static Buffer stdout_buffer; /* Buffer for stdout data. */
65 static Buffer stderr_buffer; /* Buffer for stderr data. */
66 static int fdin; /* Descriptor for stdin (for writing) */
67 static int fdout; /* Descriptor for stdout (for reading);
68 May be same number as fdin. */
69 static int fderr; /* Descriptor for stderr. May be -1. */
70 static long stdin_bytes = 0; /* Number of bytes written to stdin. */
71 static long stdout_bytes = 0; /* Number of stdout bytes sent to client. */
72 static long stderr_bytes = 0; /* Number of stderr bytes sent to client. */
73 static long fdout_bytes = 0; /* Number of stdout bytes read from program. */
74 static int stdin_eof = 0; /* EOF message received from client. */
75 static int fdout_eof = 0; /* EOF encountered reading from fdout. */
76 static int fderr_eof = 0; /* EOF encountered readung from fderr. */
77 static int fdin_is_tty = 0; /* fdin points to a tty. */
78 static int connection_in; /* Connection to client (input). */
79 static int connection_out; /* Connection to client (output). */
80 static u_int buffer_high;/* "Soft" max buffer size. */
83 * This SIGCHLD kludge is used to detect when the child exits. The server
84 * will exit after that, as soon as forwarded connections have terminated.
87 static pid_t child_pid; /* Pid of the child. */
88 static volatile int child_terminated; /* The child has terminated. */
89 static volatile int child_wait_status; /* Status from wait(). */
91 void server_init_dispatch(void);
94 sigchld_handler(int sig)
96 int save_errno = errno;
99 debug("Received SIGCHLD.");
100 wait_pid = wait((int *) &child_wait_status);
101 if (wait_pid != -1) {
102 if (wait_pid != child_pid)
103 error("Strange, got SIGCHLD and wait returned pid %d but child is %d",
104 wait_pid, child_pid);
105 if (WIFEXITED(child_wait_status) ||
106 WIFSIGNALED(child_wait_status))
107 child_terminated = 1;
109 signal(SIGCHLD, sigchld_handler);
113 sigchld_handler2(int sig)
115 int save_errno = errno;
116 debug("Received SIGCHLD.");
117 child_terminated = 1;
118 mysignal(SIGCHLD, sigchld_handler2);
123 * Make packets from buffered stderr data, and buffer it for sending
127 make_packets_from_stderr_data(void)
131 /* Send buffered stderr data to the client. */
132 while (buffer_len(&stderr_buffer) > 0 &&
133 packet_not_very_much_data_to_write()) {
134 len = buffer_len(&stderr_buffer);
135 if (packet_is_interactive()) {
139 /* Keep the packets at reasonable size. */
140 if (len > packet_get_maxsize())
141 len = packet_get_maxsize();
143 packet_start(SSH_SMSG_STDERR_DATA);
144 packet_put_string(buffer_ptr(&stderr_buffer), len);
146 buffer_consume(&stderr_buffer, len);
152 * Make packets from buffered stdout data, and buffer it for sending to the
156 make_packets_from_stdout_data(void)
160 /* Send buffered stdout data to the client. */
161 while (buffer_len(&stdout_buffer) > 0 &&
162 packet_not_very_much_data_to_write()) {
163 len = buffer_len(&stdout_buffer);
164 if (packet_is_interactive()) {
168 /* Keep the packets at reasonable size. */
169 if (len > packet_get_maxsize())
170 len = packet_get_maxsize();
172 packet_start(SSH_SMSG_STDOUT_DATA);
173 packet_put_string(buffer_ptr(&stdout_buffer), len);
175 buffer_consume(&stdout_buffer, len);
181 * Sleep in select() until we can do something. This will initialize the
182 * select masks. Upon return, the masks will indicate which descriptors
183 * have data or can accept data. Optionally, a maximum time can be specified
184 * for the duration of the wait (0 = infinite).
187 wait_until_can_do_something(fd_set **readsetp, fd_set **writesetp, int *maxfdp,
188 u_int max_time_milliseconds)
190 struct timeval tv, *tvp;
193 /* When select fails we restart from here. */
196 /* Allocate and update select() masks for channel descriptors. */
197 channel_prepare_select(readsetp, writesetp, maxfdp, 0);
200 /* wrong: bad condition XXX */
201 if (channel_not_very_much_buffered_data())
202 FD_SET(connection_in, *readsetp);
205 * Read packets from the client unless we have too much
206 * buffered stdin or channel data.
208 if (buffer_len(&stdin_buffer) < buffer_high &&
209 channel_not_very_much_buffered_data())
210 FD_SET(connection_in, *readsetp);
212 * If there is not too much data already buffered going to
213 * the client, try to get some more data from the program.
215 if (packet_not_very_much_data_to_write()) {
217 FD_SET(fdout, *readsetp);
219 FD_SET(fderr, *readsetp);
222 * If we have buffered data, try to write some of that data
225 if (fdin != -1 && buffer_len(&stdin_buffer) > 0)
226 FD_SET(fdin, *writesetp);
230 * If we have buffered packet data going to the client, mark that
233 if (packet_have_data_to_write())
234 FD_SET(connection_out, *writesetp);
237 * If child has terminated and there is enough buffer space to read
238 * from it, then read as much as is available and exit.
240 if (child_terminated && packet_not_very_much_data_to_write())
241 if (max_time_milliseconds == 0)
242 max_time_milliseconds = 100;
244 if (max_time_milliseconds == 0)
247 tv.tv_sec = max_time_milliseconds / 1000;
248 tv.tv_usec = 1000 * (max_time_milliseconds % 1000);
252 debug3("tvp!=NULL kid %d mili %d", child_terminated, max_time_milliseconds);
254 /* Wait for something to happen, or the timeout to expire. */
255 ret = select((*maxfdp)+1, *readsetp, *writesetp, NULL, tvp);
259 error("select: %.100s", strerror(errno));
266 * Processes input from the client and the program. Input data is stored
267 * in buffers and processed later.
270 process_input(fd_set * readset)
275 /* Read and buffer any input data from the client. */
276 if (FD_ISSET(connection_in, readset)) {
277 len = read(connection_in, buf, sizeof(buf));
279 verbose("Connection closed by remote host.");
281 } else if (len < 0) {
282 if (errno != EINTR && errno != EAGAIN) {
283 verbose("Read error from remote host: %.100s", strerror(errno));
287 /* Buffer any received data. */
288 packet_process_incoming(buf, len);
294 /* Read and buffer any available stdout data from the program. */
295 if (!fdout_eof && FD_ISSET(fdout, readset)) {
296 len = read(fdout, buf, sizeof(buf));
297 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
299 } else if (len <= 0) {
302 buffer_append(&stdout_buffer, buf, len);
306 /* Read and buffer any available stderr data from the program. */
307 if (!fderr_eof && FD_ISSET(fderr, readset)) {
308 len = read(fderr, buf, sizeof(buf));
309 if (len < 0 && (errno == EINTR || errno == EAGAIN)) {
311 } else if (len <= 0) {
314 buffer_append(&stderr_buffer, buf, len);
320 * Sends data from internal buffers to client program stdin.
323 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. */
346 if (fdin_is_tty && tcgetattr(fdin, &tio) == 0 &&
347 !(tio.c_lflag & ECHO) && (tio.c_lflag & ICANON)) {
349 * Simulate echo to reduce the impact of
352 packet_send_ignore(len);
355 /* Consume the data from the buffer. */
356 buffer_consume(&stdin_buffer, len);
357 /* Update the count of bytes written to the program. */
361 /* Send any buffered packet data to the client. */
362 if (FD_ISSET(connection_out, writeset))
367 * Wait until all buffered output has been sent to the client.
368 * This is used when the program terminates.
373 /* Send any buffered stdout data to the client. */
374 if (buffer_len(&stdout_buffer) > 0) {
375 packet_start(SSH_SMSG_STDOUT_DATA);
376 packet_put_string(buffer_ptr(&stdout_buffer),
377 buffer_len(&stdout_buffer));
379 /* Update the count of sent bytes. */
380 stdout_bytes += buffer_len(&stdout_buffer);
382 /* Send any buffered stderr data to the client. */
383 if (buffer_len(&stderr_buffer) > 0) {
384 packet_start(SSH_SMSG_STDERR_DATA);
385 packet_put_string(buffer_ptr(&stderr_buffer),
386 buffer_len(&stderr_buffer));
388 /* Update the count of sent bytes. */
389 stderr_bytes += buffer_len(&stderr_buffer);
391 /* Wait until all buffered data has been written to the client. */
396 process_buffered_input_packets(void)
398 dispatch_run(DISPATCH_NONBLOCK, NULL, compat20 ? xxx_kex : NULL);
402 * Performs the interactive session. This handles data transmission between
403 * the client and the program. Note that the notion of stdin, stdout, and
404 * stderr in this function is sort of reversed: this function writes to
405 * stdin (of the child program), and reads from stdout and stderr (of the
409 server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg)
411 fd_set *readset = NULL, *writeset = NULL;
413 int wait_status; /* Status returned by wait(). */
414 pid_t wait_pid; /* pid returned by wait(). */
415 int waiting_termination = 0; /* Have displayed waiting close message. */
416 u_int max_time_milliseconds;
417 u_int previous_stdout_buffer_bytes;
418 u_int stdout_buffer_bytes;
421 debug("Entering interactive session.");
423 /* Initialize the SIGCHLD kludge. */
425 child_terminated = 0;
426 signal(SIGCHLD, sigchld_handler);
428 /* Initialize our global variables. */
436 /* we don't have stderr for interactive terminal sessions, see below */
440 if (!(datafellows & SSH_BUG_IGNOREMSG) && isatty(fdin))
443 connection_in = packet_get_connection_in();
444 connection_out = packet_get_connection_out();
446 previous_stdout_buffer_bytes = 0;
448 /* Set approximate I/O buffer size. */
449 if (packet_is_interactive())
452 buffer_high = 64 * 1024;
454 /* Initialize max_fd to the maximum of the known file descriptors. */
455 max_fd = MAX(fdin, fdout);
457 max_fd = MAX(max_fd, fderr);
458 max_fd = MAX(max_fd, connection_in);
459 max_fd = MAX(max_fd, connection_out);
461 /* Initialize Initialize buffers. */
462 buffer_init(&stdin_buffer);
463 buffer_init(&stdout_buffer);
464 buffer_init(&stderr_buffer);
467 * If we have no separate fderr (which is the case when we have a pty
468 * - there we cannot make difference between data sent to stdout and
469 * stderr), indicate that we have seen an EOF from stderr. This way
470 * we don\'t need to check the descriptor everywhere.
475 server_init_dispatch();
477 /* Main loop of the server for the interactive session mode. */
480 /* Process buffered packets from the client. */
481 process_buffered_input_packets();
484 * If we have received eof, and there is no more pending
485 * input data, cause a real eof by closing fdin.
487 if (stdin_eof && fdin != -1 && buffer_len(&stdin_buffer) == 0) {
494 shutdown(fdin, SHUT_WR); /* We will no longer send. */
498 /* Make packets from buffered stderr data to send to the client. */
499 make_packets_from_stderr_data();
502 * Make packets from buffered stdout data to send to the
503 * client. If there is very little to send, this arranges to
504 * not send them now, but to wait a short while to see if we
505 * are getting more data. This is necessary, as some systems
506 * wake up readers from a pty after each separate character.
508 max_time_milliseconds = 0;
509 stdout_buffer_bytes = buffer_len(&stdout_buffer);
510 if (stdout_buffer_bytes != 0 && stdout_buffer_bytes < 256 &&
511 stdout_buffer_bytes != previous_stdout_buffer_bytes) {
512 /* try again after a while */
513 max_time_milliseconds = 10;
516 make_packets_from_stdout_data();
518 previous_stdout_buffer_bytes = buffer_len(&stdout_buffer);
520 /* Send channel data to the client. */
521 if (packet_not_very_much_data_to_write())
522 channel_output_poll();
525 * Bail out of the loop if the program has closed its output
526 * descriptors, and we have no more data to send to the
527 * client, and there is no pending buffered data.
529 if (fdout_eof && fderr_eof && !packet_have_data_to_write() &&
530 buffer_len(&stdout_buffer) == 0 && buffer_len(&stderr_buffer) == 0) {
531 if (!channel_still_open())
533 if (!waiting_termination) {
534 const char *s = "Waiting for forwarded connections to terminate...\r\n";
536 waiting_termination = 1;
537 buffer_append(&stderr_buffer, s, strlen(s));
539 /* Display list of open channels. */
540 cp = channel_open_message();
541 buffer_append(&stderr_buffer, cp, strlen(cp));
545 /* Sleep in select() until we can do something. */
546 wait_until_can_do_something(&readset, &writeset, &max_fd,
547 max_time_milliseconds);
549 /* Process any channel events. */
550 channel_after_select(readset, writeset);
552 /* Process input from the client and from program stdout/stderr. */
553 process_input(readset);
555 /* Process output to the client and to program stdin. */
556 process_output(writeset);
563 /* Cleanup and termination code. */
565 /* Wait until all output has been sent to the client. */
568 debug("End of interactive session; stdin %ld, stdout (read %ld, sent %ld), stderr %ld bytes.",
569 stdin_bytes, fdout_bytes, stdout_bytes, stderr_bytes);
571 /* Free and clear the buffers. */
572 buffer_free(&stdin_buffer);
573 buffer_free(&stdout_buffer);
574 buffer_free(&stderr_buffer);
576 /* Close the file descriptors. */
589 /* Stop listening for channels; this removes unix domain sockets. */
590 channel_stop_listening();
592 /* Wait for the child to exit. Get its exit status. */
593 wait_pid = wait(&wait_status);
594 if (wait_pid == -1) {
596 * It is possible that the wait was handled by SIGCHLD
597 * handler. This may result in either: this call
598 * returning with EINTR, or: this call returning ECHILD.
600 if (child_terminated)
601 wait_status = child_wait_status;
603 packet_disconnect("wait: %.100s", strerror(errno));
605 /* Check if it matches the process we forked. */
607 error("Strange, wait returned pid %d, expected %d",
611 /* We no longer want our SIGCHLD handler to be called. */
612 signal(SIGCHLD, SIG_DFL);
614 /* Check if it exited normally. */
615 if (WIFEXITED(wait_status)) {
616 /* Yes, normal exit. Get exit status and send it to the client. */
617 debug("Command exited with status %d.", WEXITSTATUS(wait_status));
618 packet_start(SSH_SMSG_EXITSTATUS);
619 packet_put_int(WEXITSTATUS(wait_status));
624 * Wait for exit confirmation. Note that there might be
625 * other packets coming before it; however, the program has
626 * already died so we just ignore them. The client is
627 * supposed to respond with the confirmation when it receives
632 type = packet_read(&plen);
634 while (type != SSH_CMSG_EXIT_CONFIRMATION);
636 debug("Received exit confirmation.");
639 /* Check if the program terminated due to a signal. */
640 if (WIFSIGNALED(wait_status))
641 packet_disconnect("Command terminated on signal %d.",
642 WTERMSIG(wait_status));
644 /* Some weird exit cause. Just exit. */
645 packet_disconnect("wait returned status %04x.", wait_status);
652 fd_set *readset = NULL, *writeset = NULL;
658 debug("Entering interactive session for SSH2.");
660 mysignal(SIGCHLD, sigchld_handler2);
661 child_terminated = 0;
662 connection_in = packet_get_connection_in();
663 connection_out = packet_get_connection_out();
665 max_fd = MAX(connection_in, connection_out);
667 server_init_dispatch();
670 process_buffered_input_packets();
671 if (!had_channel && channel_still_open())
673 if (had_channel && !channel_still_open()) {
674 debug("!channel_still_open.");
677 if (packet_not_very_much_data_to_write())
678 channel_output_poll();
679 wait_until_can_do_something(&readset, &writeset, &max_fd, 0);
680 if (child_terminated) {
681 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
682 session_close_by_pid(pid, status);
683 child_terminated = 0;
685 channel_after_select(readset, writeset);
686 process_input(readset);
687 process_output(writeset);
694 signal(SIGCHLD, SIG_DFL);
695 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
696 session_close_by_pid(pid, status);
697 channel_stop_listening();
701 server_input_stdin_data(int type, int plen, void *ctxt)
706 /* Stdin data from the client. Append it to the buffer. */
707 /* Ignore any data if the client has closed stdin. */
710 data = packet_get_string(&data_len);
711 packet_integrity_check(plen, (4 + data_len), type);
712 buffer_append(&stdin_buffer, data, data_len);
713 memset(data, 0, data_len);
718 server_input_eof(int type, int plen, void *ctxt)
721 * Eof from the client. The stdin descriptor to the
722 * program will be closed when all buffered data has
725 debug("EOF received for stdin.");
726 packet_integrity_check(plen, 0, type);
731 server_input_window_size(int type, int plen, void *ctxt)
733 int row = packet_get_int();
734 int col = packet_get_int();
735 int xpixel = packet_get_int();
736 int ypixel = packet_get_int();
738 debug("Window change received.");
739 packet_integrity_check(plen, 4 * 4, type);
741 pty_change_window_size(fdin, row, col, xpixel, ypixel);
745 server_request_direct_tcpip(char *ctype)
748 char *target, *originator;
749 int target_port, originator_port;
751 target = packet_get_string(NULL);
752 target_port = packet_get_int();
753 originator = packet_get_string(NULL);
754 originator_port = packet_get_int();
757 debug("server_request_direct_tcpip: originator %s port %d, target %s port %d",
758 originator, originator_port, target, target_port);
760 /* XXX check permission */
761 sock = channel_connect_to(target, target_port);
766 newch = channel_new(ctype, SSH_CHANNEL_CONNECTING,
767 sock, sock, -1, CHAN_TCP_WINDOW_DEFAULT,
768 CHAN_TCP_PACKET_DEFAULT, 0, xstrdup("direct-tcpip"), 1);
769 return (newch >= 0) ? channel_lookup(newch) : NULL;
773 server_request_session(char *ctype)
777 debug("input_session_request");
780 * A server session has no fd to read or write until a
781 * CHANNEL_REQUEST for a shell is made, so we set the type to
782 * SSH_CHANNEL_LARVAL. Additionally, a callback for handling all
783 * CHANNEL_REQUEST messages is registered.
785 newch = channel_new(ctype, SSH_CHANNEL_LARVAL,
786 -1, -1, -1, 0, CHAN_SES_PACKET_DEFAULT,
787 0, xstrdup("server-session"), 1);
788 if (session_open(newch) == 1) {
789 channel_register_callback(newch, SSH2_MSG_CHANNEL_REQUEST,
790 session_input_channel_req, (void *)0);
791 channel_register_cleanup(newch, session_close_by_channel);
792 return channel_lookup(newch);
794 debug("session open failed, free channel %d", newch);
801 server_input_channel_open(int type, int plen, void *ctxt)
810 ctype = packet_get_string(&len);
811 rchan = packet_get_int();
812 rwindow = packet_get_int();
813 rmaxpack = packet_get_int();
815 debug("server_input_channel_open: ctype %s rchan %d win %d max %d",
816 ctype, rchan, rwindow, rmaxpack);
818 if (strcmp(ctype, "session") == 0) {
819 c = server_request_session(ctype);
820 } else if (strcmp(ctype, "direct-tcpip") == 0) {
821 c = server_request_direct_tcpip(ctype);
824 debug("server_input_channel_open: confirm %s", ctype);
825 c->remote_id = rchan;
826 c->remote_window = rwindow;
827 c->remote_maxpacket = rmaxpack;
829 packet_start(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION);
830 packet_put_int(c->remote_id);
831 packet_put_int(c->self);
832 packet_put_int(c->local_window);
833 packet_put_int(c->local_maxpacket);
836 debug("server_input_channel_open: failure %s", ctype);
837 packet_start(SSH2_MSG_CHANNEL_OPEN_FAILURE);
838 packet_put_int(rchan);
839 packet_put_int(SSH2_OPEN_ADMINISTRATIVELY_PROHIBITED);
840 packet_put_cstring("bla bla");
841 packet_put_cstring("");
848 server_input_global_request(int type, int plen, void *ctxt)
854 rtype = packet_get_string(NULL);
855 want_reply = packet_get_char();
856 debug("server_input_global_request: rtype %s want_reply %d", rtype, want_reply);
858 /* -R style forwarding */
859 if (strcmp(rtype, "tcpip-forward") == 0) {
861 char *listen_address;
864 pw = auth_get_user();
866 fatal("server_input_global_request: no user");
867 listen_address = packet_get_string(NULL); /* XXX currently ignored */
868 listen_port = (u_short)packet_get_int();
869 debug("server_input_global_request: tcpip-forward listen %s port %d",
870 listen_address, listen_port);
872 /* check permissions */
873 if (!options.allow_tcp_forwarding ||
874 no_port_forwarding_flag ||
875 (listen_port < IPPORT_RESERVED && pw->pw_uid != 0)) {
877 packet_send_debug("Server has disabled port forwarding.");
879 /* Start listening on the port */
880 success = channel_request_forwarding(
881 listen_address, listen_port,
882 /*unspec host_to_connect*/ "<unspec host>",
883 /*unspec port_to_connect*/ 0,
884 options.gateway_ports, /*remote*/ 1);
886 xfree(listen_address);
889 packet_start(success ?
890 SSH2_MSG_REQUEST_SUCCESS : SSH2_MSG_REQUEST_FAILURE);
898 server_init_dispatch_20(void)
900 debug("server_init_dispatch_20");
901 dispatch_init(&dispatch_protocol_error);
902 dispatch_set(SSH2_MSG_CHANNEL_CLOSE, &channel_input_oclose);
903 dispatch_set(SSH2_MSG_CHANNEL_DATA, &channel_input_data);
904 dispatch_set(SSH2_MSG_CHANNEL_EOF, &channel_input_ieof);
905 dispatch_set(SSH2_MSG_CHANNEL_EXTENDED_DATA, &channel_input_extended_data);
906 dispatch_set(SSH2_MSG_CHANNEL_OPEN, &server_input_channel_open);
907 dispatch_set(SSH2_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
908 dispatch_set(SSH2_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
909 dispatch_set(SSH2_MSG_CHANNEL_REQUEST, &channel_input_channel_request);
910 dispatch_set(SSH2_MSG_CHANNEL_WINDOW_ADJUST, &channel_input_window_adjust);
911 dispatch_set(SSH2_MSG_GLOBAL_REQUEST, &server_input_global_request);
914 dispatch_set(SSH2_MSG_KEXINIT, &kex_input_kexinit);
917 server_init_dispatch_13(void)
919 debug("server_init_dispatch_13");
921 dispatch_set(SSH_CMSG_EOF, &server_input_eof);
922 dispatch_set(SSH_CMSG_STDIN_DATA, &server_input_stdin_data);
923 dispatch_set(SSH_CMSG_WINDOW_SIZE, &server_input_window_size);
924 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_close);
925 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_close_confirmation);
926 dispatch_set(SSH_MSG_CHANNEL_DATA, &channel_input_data);
927 dispatch_set(SSH_MSG_CHANNEL_OPEN_CONFIRMATION, &channel_input_open_confirmation);
928 dispatch_set(SSH_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
929 dispatch_set(SSH_MSG_PORT_OPEN, &channel_input_port_open);
932 server_init_dispatch_15(void)
934 server_init_dispatch_13();
935 debug("server_init_dispatch_15");
936 dispatch_set(SSH_MSG_CHANNEL_CLOSE, &channel_input_ieof);
937 dispatch_set(SSH_MSG_CHANNEL_CLOSE_CONFIRMATION, &channel_input_oclose);
940 server_init_dispatch(void)
943 server_init_dispatch_20();
945 server_init_dispatch_13();
947 server_init_dispatch_15();