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
105 lines
2.8 KiB
C
105 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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