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Diffstat (limited to 'clientloop.h')
| -rw-r--r-- | clientloop.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/clientloop.h b/clientloop.h new file mode 100644 index 0000000..3163055 --- /dev/null +++ b/clientloop.h @@ -0,0 +1,84 @@ +/* $OpenBSD: clientloop.h,v 1.37 2020/04/03 02:40:32 djm Exp $ */ + +/* + * Author: Tatu Ylonen <ylo@cs.hut.fi> + * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland + * All rights reserved + * + * As far as I am concerned, the code I have written for this software + * can be used freely for any purpose. Any derived versions of this + * software must be clearly marked as such, and if the derived work is + * incompatible with the protocol description in the RFC file, it must be + * called by a name other than "ssh" or "Secure Shell". + */ +/* + * Copyright (c) 2001 Markus Friedl. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <termios.h> + +struct ssh; + +/* Client side main loop for the interactive session. */ +int client_loop(struct ssh *, int, int, int); +int client_x11_get_proto(struct ssh *, const char *, const char *, + u_int, u_int, char **, char **); +void client_global_request_reply_fwd(int, u_int32_t, void *); +void client_session2_setup(struct ssh *, int, int, int, + const char *, struct termios *, int, struct sshbuf *, char **); +char *client_request_tun_fwd(struct ssh *, int, int, int, + channel_open_fn *, void *); +void client_stop_mux(void); + +/* Escape filter for protocol 2 sessions */ +void *client_new_escape_filter_ctx(int); +void client_filter_cleanup(struct ssh *, int, void *); +int client_simple_escape_filter(struct ssh *, Channel *, char *, int); + +/* Global request confirmation callbacks */ +typedef void global_confirm_cb(struct ssh *, int, u_int32_t, void *); +void client_register_global_confirm(global_confirm_cb *, void *); + +/* Channel request confirmation callbacks */ +enum confirm_action { CONFIRM_WARN = 0, CONFIRM_CLOSE, CONFIRM_TTY }; +void client_expect_confirm(struct ssh *, int, const char *, + enum confirm_action); + +/* Multiplexing protocol version */ +#define SSHMUX_VER 4 + +/* Multiplexing control protocol flags */ +#define SSHMUX_COMMAND_OPEN 1 /* Open new connection */ +#define SSHMUX_COMMAND_ALIVE_CHECK 2 /* Check master is alive */ +#define SSHMUX_COMMAND_TERMINATE 3 /* Ask master to exit */ +#define SSHMUX_COMMAND_STDIO_FWD 4 /* Open stdio fwd (ssh -W) */ +#define SSHMUX_COMMAND_FORWARD 5 /* Forward only, no command */ +#define SSHMUX_COMMAND_STOP 6 /* Disable mux but not conn */ +#define SSHMUX_COMMAND_CANCEL_FWD 7 /* Cancel forwarding(s) */ +#define SSHMUX_COMMAND_PROXY 8 /* Open new connection */ + +void muxserver_listen(struct ssh *); +int muxclient(const char *); +void mux_exit_message(struct ssh *, Channel *, int); +void mux_tty_alloc_failed(struct ssh *ssh, Channel *); + |