mirror of
https://github.com/freebsd/freebsd-src.git
synced 2026-10-28 11:25:21 +01:00
Ed Maste
2574974648
Full release notes are available at https://www.openssh.com/txt/release-10.3 Selected highlights from the release notes: * ssh(1), sshd(8): remove bug compatibility for implementations that don't support rekeying. If such an implementation tries to interoperate with OpenSSH, it will now eventually fail when the transport needs rekeying. * ssh(1), sshd(8): support IANA-assigned codepoints for SSH agent forwarding, as per draft-ietf-sshm-ssh-agent. Support for the new names is advertised via the EXT_INFO message. If a server offers support for the new names, then they are used preferentially. * ssh(1): add a ~I escape option that shows information about the current SSH connection. * sshd(8): add 'invaliduser' penalty to PerSourcePenalties, which is applied to login attempts for usernames that do not match real accounts. Defaults to 5s to match 'authfail' but allows administrators to block such attempts for longer if desired. * Support the ed25519 signature scheme via libcrypto. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D56999
86 lines
3.8 KiB
C
86 lines
3.8 KiB
C
/* $OpenBSD: clientloop.h,v 1.41 2026/03/03 09:57:25 dtucker Exp $ */
|
|
|
|
/*
|
|
* Author: Tatu Ylonen <[email protected]>
|
|
* Copyright (c) 1995 Tatu Ylonen <[email protected]>, 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_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, uint32_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 */
|
|
#define SSHMUX_COMMAND_CONNINFO 9 /* Show connection information */
|
|
#define SSHMUX_COMMAND_CHANINFO 10 /* Show channels information */
|
|
|
|
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 *);
|
|
|