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/* $OpenBSD: ssh.h,v 1.77 2006/03/25 22:22:43 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".
*/
#ifndef SSH_H
#define SSH_H
/* Cipher used for encrypting authentication files. */
#define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES
/* Default port number. */
#define SSH_DEFAULT_PORT 22
/* Maximum number of TCP/IP ports forwarded per direction. */
#define SSH_MAX_FORWARDS_PER_DIRECTION 100
/*
* Maximum number of RSA authentication identity files that can be specified
* in configuration files or on the command line.
*/
#define SSH_MAX_IDENTITY_FILES 100
/*
* Maximum length of lines in authorized_keys file.
* Current value permits 16kbit RSA and RSA1 keys and 8kbit DSA keys, with
* some room for options and comments.
*/
#define SSH_MAX_PUBKEY_BYTES 8192
/*
* Major protocol version. Different version indicates major incompatibility
* that prevents communication.
*
* Minor protocol version. Different version indicates minor incompatibility
* that does not prevent interoperation.
*/
#define PROTOCOL_MAJOR_1 1
#define PROTOCOL_MINOR_1 5
/* We support both SSH1 and SSH2 */
#define PROTOCOL_MAJOR_2 2
#define PROTOCOL_MINOR_2 0
/*
* Name for the service. The port named by this service overrides the
* default port if present.
*/
#define SSH_SERVICE_NAME "ssh"
/*
* Name of the environment variable containing the process ID of the
* authentication agent.
*/
#define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID"
/*
* Name of the environment variable containing the pathname of the
* authentication socket.
*/
#define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK"
/*
* Environment variable for overwriting the default location of askpass
*/
#define SSH_ASKPASS_ENV "SSH_ASKPASS"
/*
* Force host key length and server key length to differ by at least this
* many bits. This is to make double encryption with rsaref work.
*/
#define SSH_KEY_BITS_RESERVED 128
/*
* Length of the session key in bytes. (Specified as 256 bits in the
* protocol.)
*/
#define SSH_SESSION_KEY_LENGTH 32
/* Used to identify ``EscapeChar none'' */
#define SSH_ESCAPECHAR_NONE -2
/*
* unprivileged user when UsePrivilegeSeparation=yes;
* sshd will change its privileges to this user and its
* primary group.
*/
#define SSH_PRIVSEP_USER "sshd"
/* Minimum modulus size (n) for RSA keys. */
#define SSH_RSA_MINIMUM_MODULUS_SIZE 768
/* Listen backlog for sshd, ssh-agent and forwarding sockets */
#define SSH_LISTEN_BACKLOG 128
#endif /* SSH_H */
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