Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 1 | /* $OpenBSD: clientloop.h,v 1.31 2013/06/02 23:36:29 dtucker Exp $ */ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 2 | |
| 3 | /* |
| 4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| 5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 6 | * All rights reserved |
| 7 | * |
| 8 | * As far as I am concerned, the code I have written for this software |
| 9 | * can be used freely for any purpose. Any derived versions of this |
| 10 | * software must be clearly marked as such, and if the derived work is |
| 11 | * incompatible with the protocol description in the RFC file, it must be |
| 12 | * called by a name other than "ssh" or "Secure Shell". |
| 13 | */ |
| 14 | /* |
| 15 | * Copyright (c) 2001 Markus Friedl. All rights reserved. |
| 16 | * |
| 17 | * Redistribution and use in source and binary forms, with or without |
| 18 | * modification, are permitted provided that the following conditions |
| 19 | * are met: |
| 20 | * 1. Redistributions of source code must retain the above copyright |
| 21 | * notice, this list of conditions and the following disclaimer. |
| 22 | * 2. Redistributions in binary form must reproduce the above copyright |
| 23 | * notice, this list of conditions and the following disclaimer in the |
| 24 | * documentation and/or other materials provided with the distribution. |
| 25 | * |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 27 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 28 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 29 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 30 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 31 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 32 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 33 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 34 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 35 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 36 | */ |
| 37 | |
| 38 | #include <termios.h> |
| 39 | |
| 40 | /* Client side main loop for the interactive session. */ |
| 41 | int client_loop(int, int, int); |
| 42 | void client_x11_get_proto(const char *, const char *, u_int, u_int, |
| 43 | char **, char **); |
| 44 | void client_global_request_reply_fwd(int, u_int32_t, void *); |
| 45 | void client_session2_setup(int, int, int, const char *, struct termios *, |
| 46 | int, Buffer *, char **); |
| 47 | int client_request_tun_fwd(int, int, int); |
| 48 | void client_stop_mux(void); |
| 49 | |
| 50 | /* Escape filter for protocol 2 sessions */ |
| 51 | void *client_new_escape_filter_ctx(int); |
| 52 | void client_filter_cleanup(int, void *); |
| 53 | int client_simple_escape_filter(Channel *, char *, int); |
| 54 | |
| 55 | /* Global request confirmation callbacks */ |
| 56 | typedef void global_confirm_cb(int, u_int32_t seq, void *); |
| 57 | void client_register_global_confirm(global_confirm_cb *, void *); |
| 58 | |
| 59 | /* Channel request confirmation callbacks */ |
| 60 | enum confirm_action { CONFIRM_WARN = 0, CONFIRM_CLOSE, CONFIRM_TTY }; |
| 61 | void client_expect_confirm(int, const char *, enum confirm_action); |
| 62 | |
| 63 | /* Multiplexing protocol version */ |
| 64 | #define SSHMUX_VER 4 |
| 65 | |
| 66 | /* Multiplexing control protocol flags */ |
| 67 | #define SSHMUX_COMMAND_OPEN 1 /* Open new connection */ |
| 68 | #define SSHMUX_COMMAND_ALIVE_CHECK 2 /* Check master is alive */ |
| 69 | #define SSHMUX_COMMAND_TERMINATE 3 /* Ask master to exit */ |
| 70 | #define SSHMUX_COMMAND_STDIO_FWD 4 /* Open stdio fwd (ssh -W) */ |
| 71 | #define SSHMUX_COMMAND_FORWARD 5 /* Forward only, no command */ |
| 72 | #define SSHMUX_COMMAND_STOP 6 /* Disable mux but not conn */ |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 73 | #define SSHMUX_COMMAND_CANCEL_FWD 7 /* Cancel forwarding(s) */ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 74 | |
| 75 | void muxserver_listen(void); |
| 76 | void muxclient(const char *); |
| 77 | void mux_exit_message(Channel *, int); |
| 78 | void mux_tty_alloc_failed(Channel *); |
| 79 | |