19261079b7
Some notable changes, from upstream's release notes: - sshd(8): Remove support for obsolete "host/port" syntax. - ssh(1): When prompting whether to record a new host key, accept the key fingerprint as a synonym for "yes". - ssh-keygen(1): when acting as a CA and signing certificates with an RSA key, default to using the rsa-sha2-512 signature algorithm. - ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa" (RSA/SHA1) algorithm from those accepted for certificate signatures. - ssh-sk-helper(8): this is a new binary. It is used by the FIDO/U2F support to provide address-space isolation for token middleware libraries (including the internal one). - ssh(1): this release enables UpdateHostkeys by default subject to some conservative preconditions. - scp(1): this release changes the behaviour of remote to remote copies (e.g. "scp host-a:/path host-b:") to transfer through the local host by default. - scp(1): experimental support for transfers using the SFTP protocol as a replacement for the venerable SCP/RCP protocol that it has traditionally used. Additional integration work is needed to support FIDO/U2F in the base system. Deprecation Notice ------------------ OpenSSH will disable the ssh-rsa signature scheme by default in the next release. Reviewed by: imp MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29985
85 lines
3.7 KiB
C
85 lines
3.7 KiB
C
/* $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 *);
|
|
|