1 /* $OpenBSD: ssh.h,v 1.71 2002/06/22 02:00:29 stevesk Exp $ */ 2 3 #ifndef _SSH_H 4 #define _SSH_H 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 #ifdef __cplusplus 9 extern "C" { 10 #endif 11 12 13 /* 14 * Author: Tatu Ylonen <ylo@cs.hut.fi> 15 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 16 * All rights reserved 17 * 18 * As far as I am concerned, the code I have written for this software 19 * can be used freely for any purpose. Any derived versions of this 20 * software must be clearly marked as such, and if the derived work is 21 * incompatible with the protocol description in the RFC file, it must be 22 * called by a name other than "ssh" or "Secure Shell". 23 */ 24 25 #include <netinet/in.h> /* For struct sockaddr_in */ 26 #include <pwd.h> /* For struct pw */ 27 #include <stdarg.h> /* For va_list */ 28 #include <syslog.h> /* For LOG_AUTH and friends */ 29 #include <sys/socket.h> /* For struct sockaddr_storage */ 30 #include "fake-socket.h" /* For struct sockaddr_storage */ 31 #ifdef HAVE_SYS_SELECT_H 32 # include <sys/select.h> 33 #endif 34 35 /* Cipher used for encrypting authentication files. */ 36 #define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES 37 38 /* Default port number. */ 39 #define SSH_DEFAULT_PORT 22 40 41 /* Maximum number of TCP/IP ports forwarded per direction. */ 42 #define SSH_MAX_FORWARDS_PER_DIRECTION 100 43 44 /* 45 * Maximum number of RSA authentication identity files that can be specified 46 * in configuration files or on the command line. 47 */ 48 #define SSH_MAX_IDENTITY_FILES 100 49 50 /* 51 * Major protocol version. Different version indicates major incompatibility 52 * that prevents communication. 53 * 54 * Minor protocol version. Different version indicates minor incompatibility 55 * that does not prevent interoperation. 56 */ 57 #define PROTOCOL_MAJOR_1 1 58 #define PROTOCOL_MINOR_1 5 59 60 /* We support both SSH1 and SSH2 */ 61 #define PROTOCOL_MAJOR_2 2 62 #define PROTOCOL_MINOR_2 0 63 64 /* 65 * Name for the service. The port named by this service overrides the 66 * default port if present. 67 */ 68 #define SSH_SERVICE_NAME "ssh" 69 70 /* 71 * Name of the environment variable containing the process ID of the 72 * authentication agent. 73 */ 74 #define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID" 75 76 /* 77 * Name of the environment variable containing the pathname of the 78 * authentication socket. 79 */ 80 #define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK" 81 82 /* 83 * Environment variable for overwriting the default location of askpass 84 */ 85 #define SSH_ASKPASS_ENV "SSH_ASKPASS" 86 87 /* 88 * 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 */ 91 #define SSH_KEY_BITS_RESERVED 128 92 93 /* 94 * Length of the session key in bytes. (Specified as 256 bits in the 95 * protocol.) 96 */ 97 #define SSH_SESSION_KEY_LENGTH 32 98 99 /* Name of Kerberos service for SSH to use. */ 100 #define KRB4_SERVICE_NAME "rcmd" 101 102 /* Used to identify ``EscapeChar none'' */ 103 #define SSH_ESCAPECHAR_NONE -2 104 105 /* 106 * unprivileged user when UsePrivilegeSeparation=yes; 107 * sshd will change its privileges to this user and its 108 * primary group. 109 */ 110 #ifndef SSH_PRIVSEP_USER 111 #define SSH_PRIVSEP_USER "sshd" 112 #endif 113 114 /* Minimum modulus size (n) for RSA keys. */ 115 #define SSH_RSA_MINIMUM_MODULUS_SIZE 768 116 117 #ifdef __cplusplus 118 } 119 #endif 120 121 #endif /* _SSH_H */ 122