Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1 | /* |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 4 | * All rights reserved |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 5 | * |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 6 | * 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 Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 11 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 12 | |
Ben Lindstrom | bda5bdc | 2001-01-23 16:09:51 +0000 | [diff] [blame] | 13 | /* RCSID("$OpenBSD: ssh.h,v 1.62 2001/01/23 10:45:10 markus Exp $"); */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 14 | |
| 15 | #ifndef SSH_H |
| 16 | #define SSH_H |
| 17 | |
Damien Miller | ab18c41 | 1999-11-11 10:40:23 +1100 | [diff] [blame] | 18 | #include <netinet/in.h> /* For struct sockaddr_in */ |
| 19 | #include <pwd.h> /* For struct pw */ |
Damien Miller | 5ce662a | 1999-11-11 17:57:39 +1100 | [diff] [blame] | 20 | #include <stdarg.h> /* For va_list */ |
Damien Miller | 6dbfef6 | 2000-11-29 13:51:06 +1100 | [diff] [blame] | 21 | #include <syslog.h> /* For LOG_AUTH and friends */ |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 22 | #include <sys/socket.h> /* For struct sockaddr_storage */ |
Damien Miller | 3c02768 | 2001-03-14 11:39:45 +1100 | [diff] [blame] | 23 | #include "openbsd-compat/fake-socket.h" /* For struct sockaddr_storage */ |
Damien Miller | 365199d | 1999-12-22 00:12:38 +1100 | [diff] [blame] | 24 | #ifdef HAVE_SYS_SELECT_H |
| 25 | # include <sys/select.h> |
| 26 | #endif |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 27 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 28 | /* Cipher used for encrypting authentication files. */ |
| 29 | #define SSH_AUTHFILE_CIPHER SSH_CIPHER_3DES |
| 30 | |
| 31 | /* Default port number. */ |
| 32 | #define SSH_DEFAULT_PORT 22 |
| 33 | |
| 34 | /* Maximum number of TCP/IP ports forwarded per direction. */ |
| 35 | #define SSH_MAX_FORWARDS_PER_DIRECTION 100 |
| 36 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 37 | /* |
| 38 | * Maximum number of RSA authentication identity files that can be specified |
| 39 | * in configuration files or on the command line. |
| 40 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 41 | #define SSH_MAX_IDENTITY_FILES 100 |
| 42 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 43 | /* |
| 44 | * Major protocol version. Different version indicates major incompatiblity |
| 45 | * that prevents communication. |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 46 | * |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 47 | * Minor protocol version. Different version indicates minor incompatibility |
| 48 | * that does not prevent interoperation. |
| 49 | */ |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 50 | #define PROTOCOL_MAJOR_1 1 |
| 51 | #define PROTOCOL_MINOR_1 5 |
| 52 | |
| 53 | /* We support both SSH1 and SSH2 */ |
| 54 | #define PROTOCOL_MAJOR_2 2 |
| 55 | #define PROTOCOL_MINOR_2 0 |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 56 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 57 | /* |
| 58 | * Name for the service. The port named by this service overrides the |
| 59 | * default port if present. |
| 60 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 61 | #define SSH_SERVICE_NAME "ssh" |
| 62 | |
Damien Miller | d0cff3e | 2000-04-20 23:12:58 +1000 | [diff] [blame] | 63 | #if defined(USE_PAM) && !defined(SSHD_PAM_SERVICE) |
| 64 | # define SSHD_PAM_SERVICE "sshd" |
| 65 | #endif |
| 66 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 67 | /* |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 68 | * Name of the environment variable containing the pathname of the |
| 69 | * authentication socket. |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 70 | */ |
Kevin Steves | 28a7f26 | 2001-02-05 15:43:59 +0000 | [diff] [blame] | 71 | #define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID" |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 72 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 73 | /* |
| 74 | * Name of the environment variable containing the pathname of the |
| 75 | * authentication socket. |
| 76 | */ |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 77 | #define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK" |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 78 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 79 | /* |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 80 | * Environment variable for overwriting the default location of askpass |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 81 | */ |
Damien Miller | aae6c61 | 1999-12-06 11:47:28 +1100 | [diff] [blame] | 82 | #define SSH_ASKPASS_ENV "SSH_ASKPASS" |
| 83 | |
| 84 | /* |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 85 | * Force host key length and server key length to differ by at least this |
| 86 | * many bits. This is to make double encryption with rsaref work. |
| 87 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 88 | #define SSH_KEY_BITS_RESERVED 128 |
| 89 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 90 | /* |
| 91 | * Length of the session key in bytes. (Specified as 256 bits in the |
| 92 | * protocol.) |
| 93 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 94 | #define SSH_SESSION_KEY_LENGTH 32 |
| 95 | |
| 96 | /* Name of Kerberos service for SSH to use. */ |
| 97 | #define KRB4_SERVICE_NAME "rcmd" |
| 98 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 99 | #endif /* SSH_H */ |