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1 | /* $OpenBSD: ssh.h,v 1.71 2002/06/22 02:00:29 stevesk Exp $ */ | |
2 | ||
3 | /* | |
4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | |
5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
6 | * All rights reserved | |
7 | * | |
8 | * As far as I am concerned, the code I have written for this software | |
9 | * can be used freely for any purpose. Any derived versions of this | |
10 | * software must be clearly marked as such, and if the derived work is | |
11 | * incompatible with the protocol description in the RFC file, it must be | |
12 | * called by a name other than "ssh" or "Secure Shell". | |
13 | */ | |
14 | ||
15 | #ifndef SSH_H | |
16 | #define SSH_H | |
17 | ||
18 | #include <netinet/in.h> /* For struct sockaddr_in */ | |
19 | #include <pwd.h> /* For struct pw */ | |
20 | #include <stdarg.h> /* For va_list */ | |
21 | #include <syslog.h> /* For LOG_AUTH and friends */ | |
22 | #include <sys/socket.h> /* For struct sockaddr_storage */ | |
23 | #include "openbsd-compat/fake-socket.h" /* For struct sockaddr_storage */ | |
24 | #ifdef HAVE_SYS_SELECT_H | |
25 | # include <sys/select.h> | |
26 | #endif | |
27 | ||
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 | ||
37 | /* | |
38 | * Maximum number of RSA authentication identity files that can be specified | |
39 | * in configuration files or on the command line. | |
40 | */ | |
41 | #define SSH_MAX_IDENTITY_FILES 100 | |
42 | ||
43 | /* | |
44 | * Major protocol version. Different version indicates major incompatibility | |
45 | * that prevents communication. | |
46 | * | |
47 | * Minor protocol version. Different version indicates minor incompatibility | |
48 | * that does not prevent interoperation. | |
49 | */ | |
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 | |
56 | ||
57 | /* | |
58 | * Name for the service. The port named by this service overrides the | |
59 | * default port if present. | |
60 | */ | |
61 | #define SSH_SERVICE_NAME "ssh" | |
62 | ||
63 | #if defined(USE_PAM) && !defined(SSHD_PAM_SERVICE) | |
64 | # define SSHD_PAM_SERVICE __progname | |
65 | #endif | |
66 | ||
67 | /* | |
68 | * Name of the environment variable containing the process ID of the | |
69 | * authentication agent. | |
70 | */ | |
71 | #define SSH_AGENTPID_ENV_NAME "SSH_AGENT_PID" | |
72 | ||
73 | /* | |
74 | * Name of the environment variable containing the pathname of the | |
75 | * authentication socket. | |
76 | */ | |
77 | #define SSH_AUTHSOCKET_ENV_NAME "SSH_AUTH_SOCK" | |
78 | ||
79 | /* | |
80 | * Environment variable for overwriting the default location of askpass | |
81 | */ | |
82 | #define SSH_ASKPASS_ENV "SSH_ASKPASS" | |
83 | ||
84 | /* | |
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 | */ | |
88 | #define SSH_KEY_BITS_RESERVED 128 | |
89 | ||
90 | /* | |
91 | * Length of the session key in bytes. (Specified as 256 bits in the | |
92 | * protocol.) | |
93 | */ | |
94 | #define SSH_SESSION_KEY_LENGTH 32 | |
95 | ||
96 | /* Name of Kerberos service for SSH to use. */ | |
97 | #define KRB4_SERVICE_NAME "rcmd" | |
98 | ||
99 | /* Used to identify ``EscapeChar none'' */ | |
100 | #define SSH_ESCAPECHAR_NONE -2 | |
101 | ||
102 | /* | |
103 | * unprivileged user when UsePrivilegeSeparation=yes; | |
104 | * sshd will change its privileges to this user and its | |
105 | * primary group. | |
106 | */ | |
107 | #ifndef SSH_PRIVSEP_USER | |
108 | #define SSH_PRIVSEP_USER "sshd" | |
109 | #endif | |
110 | ||
111 | /* Minimum modulus size (n) for RSA keys. */ | |
112 | #define SSH_RSA_MINIMUM_MODULUS_SIZE 768 | |
113 | ||
114 | #endif /* SSH_H */ |