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317a38ab65
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 (cherry picked from commit19261079b7) (cherry picked from commitf448c3ed4a) (cherry picked from commit1f290c707a) (cherry picked from commit0f9bafdfc3) (cherry picked from commitadb56e58e8) (cherry picked from commit576b58108c) (cherry picked from commit1c99af1ebe) (cherry picked from commit87152f3405) (cherry picked from commit172fa4aa75)
84 lines
3.7 KiB
C
84 lines
3.7 KiB
C
/* $OpenBSD: clientloop.h,v 1.37 2020/04/03 02:40:32 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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/*
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* Copyright (c) 2001 Markus Friedl. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <termios.h>
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struct ssh;
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/* Client side main loop for the interactive session. */
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int client_loop(struct ssh *, int, int, int);
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int client_x11_get_proto(struct ssh *, const char *, const char *,
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u_int, u_int, char **, char **);
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void client_global_request_reply_fwd(int, u_int32_t, void *);
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void client_session2_setup(struct ssh *, int, int, int,
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const char *, struct termios *, int, struct sshbuf *, char **);
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char *client_request_tun_fwd(struct ssh *, int, int, int,
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channel_open_fn *, void *);
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void client_stop_mux(void);
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/* Escape filter for protocol 2 sessions */
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void *client_new_escape_filter_ctx(int);
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void client_filter_cleanup(struct ssh *, int, void *);
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int client_simple_escape_filter(struct ssh *, Channel *, char *, int);
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/* Global request confirmation callbacks */
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typedef void global_confirm_cb(struct ssh *, int, u_int32_t, void *);
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void client_register_global_confirm(global_confirm_cb *, void *);
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/* Channel request confirmation callbacks */
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enum confirm_action { CONFIRM_WARN = 0, CONFIRM_CLOSE, CONFIRM_TTY };
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void client_expect_confirm(struct ssh *, int, const char *,
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enum confirm_action);
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/* Multiplexing protocol version */
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#define SSHMUX_VER 4
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/* Multiplexing control protocol flags */
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#define SSHMUX_COMMAND_OPEN 1 /* Open new connection */
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#define SSHMUX_COMMAND_ALIVE_CHECK 2 /* Check master is alive */
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#define SSHMUX_COMMAND_TERMINATE 3 /* Ask master to exit */
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#define SSHMUX_COMMAND_STDIO_FWD 4 /* Open stdio fwd (ssh -W) */
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#define SSHMUX_COMMAND_FORWARD 5 /* Forward only, no command */
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#define SSHMUX_COMMAND_STOP 6 /* Disable mux but not conn */
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#define SSHMUX_COMMAND_CANCEL_FWD 7 /* Cancel forwarding(s) */
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#define SSHMUX_COMMAND_PROXY 8 /* Open new connection */
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void muxserver_listen(struct ssh *);
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int muxclient(const char *);
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void mux_exit_message(struct ssh *, Channel *, int);
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void mux_tty_alloc_failed(struct ssh *ssh, Channel *);
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