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 #ifdef __cplusplus 7 extern "C" { 8 #endif 9 10 11 /* 12 * Author: Tatu Ylonen <ylo@cs.hut.fi> 13 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 14 * All rights reserved 15 * 16 * As far as I am concerned, the code I have written for this software 17 * can be used freely for any purpose. Any derived versions of this 18 * software must be clearly marked as such, and if the derived work is 19 * incompatible with the protocol description in the RFC file, it must be 20 * called by a name other than "ssh" or "Secure Shell". 21 */ 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <netinet/in.h> /* For struct sockaddr_in */ 28 #include <pwd.h> /* For struct pw */ 29 #include <stdarg.h> /* For va_list */ 30 #include <syslog.h> /* For LOG_AUTH and friends */ 31 #include <sys/socket.h> /* For struct sockaddr_storage */ 32 #include "fake-socket.h" /* For struct sockaddr_storage */ 33 #ifdef HAVE_SYS_SELECT_H 34 # include <sys/select.h> 35 #endif 36 37 /* Cipher used for encrypting authentication files. */ 38 #define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES 39 40 /* Default port number. */ 41 #define SSH_DEFAULT_PORT 22 42 43 /* Maximum number of TCP/IP ports forwarded per direction. */ 44 #define SSH_MAX_FORWARDS_PER_DIRECTION 100 45 46 /* 47 * Maximum number of RSA authentication identity files that can be specified 48 * in configuration files or on the command line. 49 */ 50 #define SSH_MAX_IDENTITY_FILES 100 51 52 /* 53 * Major protocol version. Different version indicates major incompatibility 54 * that prevents communication. 55 * 56 * Minor protocol version. Different version indicates minor incompatibility 57 * that does not prevent interoperation. 58 */ 59 #define PROTOCOL_MAJOR_1 1 60 #define PROTOCOL_MINOR_1 5 61 62 /* We support both SSH1 and SSH2 */ 63 #define PROTOCOL_MAJOR_2 2 64 #define PROTOCOL_MINOR_2 0 65 66 /* 67 * Name for the service. The port named by this service overrides the 68 * default port if present. 69 */ 70 #define SSH_SERVICE_NAME "ssh" 71 72 /* 73 * Name of the environment variable containing the process ID of the 74 * authentication agent. 75 */ 76 #define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID" 77 78 /* 79 * Name of the environment variable containing the pathname of the 80 * authentication socket. 81 */ 82 #define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK" 83 84 /* 85 * Environment variable for overwriting the default location of askpass 86 */ 87 #define SSH_ASKPASS_ENV "SSH_ASKPASS" 88 89 /* 90 * Force host key length and server key length to differ by at least this 91 * many bits. This is to make double encryption with rsaref work. 92 */ 93 #define SSH_KEY_BITS_RESERVED 128 94 95 /* 96 * Length of the session key in bytes. (Specified as 256 bits in the 97 * protocol.) 98 */ 99 #define SSH_SESSION_KEY_LENGTH 32 100 101 /* Name of Kerberos service for SSH to use. */ 102 #define KRB4_SERVICE_NAME "rcmd" 103 104 /* Used to identify ``EscapeChar none'' */ 105 #define SSH_ESCAPECHAR_NONE -2 106 107 /* 108 * unprivileged user when UsePrivilegeSeparation=yes; 109 * sshd will change its privileges to this user and its 110 * primary group. 111 */ 112 #ifndef SSH_PRIVSEP_USER 113 #define SSH_PRIVSEP_USER "sshd" 114 #endif 115 116 /* Minimum modulus size (n) for RSA keys. */ 117 #define SSH_RSA_MINIMUM_MODULUS_SIZE 768 118 119 /* Listen backlog for sshd, ssh-agent and forwarding sockets */ 120 #define SSH_LISTEN_BACKLOG 128 121 122 /* 123 * Do not display banner when in remote command mode only. Note that RFC 4254 124 * uses "exec" as a mode name for the channel opened for the execution of the 125 * given command. 126 */ 127 #define SSH_NO_BANNER_IN_EXEC_MODE 2 128 129 #ifdef __cplusplus 130 } 131 #endif 132 133 #endif /* _SSH_H */ 134