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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)
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/* $OpenBSD: ssh.h,v 1.90 2020/07/14 23:57:01 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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/* Cipher used for encrypting authentication files. */
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#define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES
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/* Default port number. */
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#define SSH_DEFAULT_PORT 22
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/*
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* Maximum number of certificate files that can be specified
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* in configuration files or on the command line.
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*/
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#define SSH_MAX_CERTIFICATE_FILES 100
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/*
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* Maximum number of RSA authentication identity files that can be specified
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* in configuration files or on the command line.
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*/
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#define SSH_MAX_IDENTITY_FILES 100
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/*
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* Major protocol version. Different version indicates major incompatibility
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* that prevents communication.
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*
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* Minor protocol version. Different version indicates minor incompatibility
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* that does not prevent interoperation.
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*/
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#define PROTOCOL_MAJOR_1 1
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#define PROTOCOL_MINOR_1 5
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/* We support only SSH2 */
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#define PROTOCOL_MAJOR_2 2
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#define PROTOCOL_MINOR_2 0
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/*
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* Name for the service. The port named by this service overrides the
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* default port if present.
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*/
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#define SSH_SERVICE_NAME "ssh"
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/*
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* Name of the environment variable containing the process ID of the
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* authentication agent.
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*/
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#define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID"
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/*
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* Name of the environment variable containing the pathname of the
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* authentication socket.
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*/
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#define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK"
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/*
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* Environment variable for overwriting the default location of askpass
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*/
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#define SSH_ASKPASS_ENV "SSH_ASKPASS"
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/*
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* Environment variable to control whether or not askpass is used.
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*/
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#define SSH_ASKPASS_REQUIRE_ENV "SSH_ASKPASS_REQUIRE"
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/*
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* Force host key length and server key length to differ by at least this
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* many bits. This is to make double encryption with rsaref work.
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*/
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#define SSH_KEY_BITS_RESERVED 128
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/*
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* Length of the session key in bytes. (Specified as 256 bits in the
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* protocol.)
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*/
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#define SSH_SESSION_KEY_LENGTH 32
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/* Used to identify ``EscapeChar none'' */
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#define SSH_ESCAPECHAR_NONE -2
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/*
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* unprivileged user when UsePrivilegeSeparation=yes;
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* sshd will change its privileges to this user and its
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* primary group.
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*/
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#ifndef SSH_PRIVSEP_USER
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#define SSH_PRIVSEP_USER "sshd"
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#endif
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/* Listen backlog for sshd, ssh-agent and forwarding sockets */
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#define SSH_LISTEN_BACKLOG 128
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/* Limits for banner exchange */
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#define SSH_MAX_BANNER_LEN 8192
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#define SSH_MAX_PRE_BANNER_LINES 1024
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