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Damien Millerd4a8b7e1999-10-27 13:42:43 +10001/*
Damien Miller95def091999-11-25 00:26:21 +11002 * Author: Tatu Ylonen <ylo@cs.hut.fi>
Damien Miller95def091999-11-25 00:26:21 +11003 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
4 * All rights reserved
Damien Miller4af51302000-04-16 11:18:38 +10005 *
Damien Millere4340be2000-09-16 13:29:08 +11006 * As far as I am concerned, the code I have written for this software
7 * can be used freely for any purpose. Any derived versions of this
8 * software must be clearly marked as such, and if the derived work is
9 * incompatible with the protocol description in the RFC file, it must be
10 * called by a name other than "ssh" or "Secure Shell".
Damien Miller95def091999-11-25 00:26:21 +110011 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100012
Ben Lindstrom226cfa02001-01-22 05:34:40 +000013/* RCSID("$OpenBSD: ssh.h,v 1.61 2001/01/21 19:05:59 markus Exp $"); */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100014
15#ifndef SSH_H
16#define SSH_H
17
Damien Millerab18c411999-11-11 10:40:23 +110018#include <netinet/in.h> /* For struct sockaddr_in */
19#include <pwd.h> /* For struct pw */
Damien Miller5ce662a1999-11-11 17:57:39 +110020#include <stdarg.h> /* For va_list */
Damien Miller6dbfef62000-11-29 13:51:06 +110021#include <syslog.h> /* For LOG_AUTH and friends */
Damien Miller34132e52000-01-14 15:45:46 +110022#include <sys/socket.h> /* For struct sockaddr_storage */
23#include "fake-socket.h" /* For struct sockaddr_storage */
Damien Miller365199d1999-12-22 00:12:38 +110024#ifdef HAVE_SYS_SELECT_H
25# include <sys/select.h>
26#endif
Ben Lindstrom226cfa02001-01-22 05:34:40 +000027
28//#include "rsa.h"
29//#include "cipher.h"
Damien Millerd4a8b7e1999-10-27 13:42:43 +100030
Damien Millerd4a8b7e1999-10-27 13:42:43 +100031/* Cipher used for encrypting authentication files. */
32#define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES
33
34/* Default port number. */
35#define SSH_DEFAULT_PORT 22
36
37/* Maximum number of TCP/IP ports forwarded per direction. */
38#define SSH_MAX_FORWARDS_PER_DIRECTION 100
39
Damien Miller5428f641999-11-25 11:54:57 +110040/*
41 * Maximum number of RSA authentication identity files that can be specified
42 * in configuration files or on the command line.
43 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100044#define SSH_MAX_IDENTITY_FILES 100
45
Damien Miller5428f641999-11-25 11:54:57 +110046/*
47 * Major protocol version. Different version indicates major incompatiblity
48 * that prevents communication.
Damien Miller78928792000-04-12 20:17:38 +100049 *
Damien Miller5428f641999-11-25 11:54:57 +110050 * Minor protocol version. Different version indicates minor incompatibility
51 * that does not prevent interoperation.
52 */
Damien Miller78928792000-04-12 20:17:38 +100053#define PROTOCOL_MAJOR_1 1
54#define PROTOCOL_MINOR_1 5
55
56/* We support both SSH1 and SSH2 */
57#define PROTOCOL_MAJOR_2 2
58#define PROTOCOL_MINOR_2 0
Damien Millerd4a8b7e1999-10-27 13:42:43 +100059
Damien Miller5428f641999-11-25 11:54:57 +110060/*
61 * Name for the service. The port named by this service overrides the
62 * default port if present.
63 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100064#define SSH_SERVICE_NAME "ssh"
65
Damien Millerd0cff3e2000-04-20 23:12:58 +100066#if defined(USE_PAM) && !defined(SSHD_PAM_SERVICE)
67# define SSHD_PAM_SERVICE "sshd"
68#endif
69
Damien Miller5428f641999-11-25 11:54:57 +110070/*
Ben Lindstrom226cfa02001-01-22 05:34:40 +000071 * Name of the environment variable containing the pathname of the
72 * authentication socket.
Damien Miller5428f641999-11-25 11:54:57 +110073 */
Ben Lindstrom226cfa02001-01-22 05:34:40 +000074#define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID"
Damien Millerd4a8b7e1999-10-27 13:42:43 +100075
Damien Miller5428f641999-11-25 11:54:57 +110076/*
77 * Name of the environment variable containing the pathname of the
78 * authentication socket.
79 */
Ben Lindstrom226cfa02001-01-22 05:34:40 +000080#define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK"
Damien Millerd4a8b7e1999-10-27 13:42:43 +100081
Damien Miller5428f641999-11-25 11:54:57 +110082/*
Ben Lindstrom226cfa02001-01-22 05:34:40 +000083 * Environment variable for overwriting the default location of askpass
Damien Miller5428f641999-11-25 11:54:57 +110084 */
Damien Milleraae6c611999-12-06 11:47:28 +110085#define SSH_ASKPASS_ENV "SSH_ASKPASS"
86
87/*
Damien Miller5428f641999-11-25 11:54:57 +110088 * Force host key length and server key length to differ by at least this
89 * many bits. This is to make double encryption with rsaref work.
90 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100091#define SSH_KEY_BITS_RESERVED 128
92
Damien Miller5428f641999-11-25 11:54:57 +110093/*
94 * Length of the session key in bytes. (Specified as 256 bits in the
95 * protocol.)
96 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100097#define SSH_SESSION_KEY_LENGTH 32
98
99/* Name of Kerberos service for SSH to use. */
100#define KRB4_SERVICE_NAME "rcmd"
101
Damien Miller95def091999-11-25 00:26:21 +1100102#endif /* SSH_H */