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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 Miller95def091999-11-25 00:26:21 +11005 * Definitions for server configuration data and for the functions reading it.
Damien Miller4af51302000-04-16 11:18:38 +10006 *
Damien Millere4340be2000-09-16 13:29:08 +11007 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is
10 * incompatible with the protocol description in the RFC file, it must be
11 * called by a name other than "ssh" or "Secure Shell".
Damien Miller95def091999-11-25 00:26:21 +110012 */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100013
Damien Miller50a41ed2000-10-16 12:14:42 +110014/* RCSID("$OpenBSD: servconf.h,v 1.30 2000/10/14 12:12:09 markus Exp $"); */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100015
16#ifndef SERVCONF_H
17#define SERVCONF_H
18
Damien Miller34132e52000-01-14 15:45:46 +110019#define MAX_PORTS 256 /* Max # ports. */
20
Damien Miller95def091999-11-25 00:26:21 +110021#define MAX_ALLOW_USERS 256 /* Max # users on allow list. */
22#define MAX_DENY_USERS 256 /* Max # users on deny list. */
23#define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */
24#define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */
Damien Millerf6d9e222000-06-18 14:50:44 +100025#define MAX_SUBSYSTEMS 256 /* Max # subsystems. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100026
Damien Miller95def091999-11-25 00:26:21 +110027typedef struct {
Damien Miller34132e52000-01-14 15:45:46 +110028 unsigned int num_ports;
29 unsigned int ports_from_cmdline;
30 u_short ports[MAX_PORTS]; /* Port number to listen on. */
31 char *listen_addr; /* Address on which the server listens. */
32 struct addrinfo *listen_addrs; /* Addresses on which the server listens. */
Damien Miller95def091999-11-25 00:26:21 +110033 char *host_key_file; /* File containing host key. */
Damien Millere247cc42000-05-07 12:03:14 +100034 char *host_dsa_key_file; /* File containing dsa host key. */
Damien Miller6f83b8e2000-05-02 09:23:45 +100035 char *pid_file; /* Where to put our pid */
Damien Miller95def091999-11-25 00:26:21 +110036 int server_key_bits;/* Size of the server key. */
37 int login_grace_time; /* Disconnect if no auth in this time
38 * (sec). */
39 int key_regeneration_time; /* Server key lifetime (seconds). */
40 int permit_root_login; /* If true, permit root login. */
41 int ignore_rhosts; /* Ignore .rhosts and .shosts. */
42 int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
43 * for RhostsRsaAuth */
44 int print_motd; /* If true, print /etc/motd. */
45 int check_mail; /* If true, check for new mail. */
46 int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
47 int x11_display_offset; /* What DISPLAY number to start
48 * searching at */
Damien Millerd3a18572000-06-07 19:55:44 +100049 char *xauth_location; /* Location of xauth program */
Damien Miller95def091999-11-25 00:26:21 +110050 int strict_modes; /* If true, require string home dir modes. */
51 int keepalives; /* If true, set SO_KEEPALIVE. */
Damien Miller78928792000-04-12 20:17:38 +100052 char *ciphers; /* Ciphers in order of preference. */
53 int protocol; /* Protocol in order of preference. */
Damien Millere247cc42000-05-07 12:03:14 +100054 int gateway_ports; /* If true, allow remote connects to forwarded ports. */
Damien Miller95def091999-11-25 00:26:21 +110055 SyslogFacility log_facility; /* Facility for system logging. */
56 LogLevel log_level; /* Level for system logging. */
57 int rhosts_authentication; /* If true, permit rhosts
58 * authentication. */
59 int rhosts_rsa_authentication; /* If true, permit rhosts RSA
60 * authentication. */
61 int rsa_authentication; /* If true, permit RSA authentication. */
Damien Millere247cc42000-05-07 12:03:14 +100062 int dsa_authentication; /* If true, permit DSA authentication. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100063#ifdef KRB4
Damien Miller95def091999-11-25 00:26:21 +110064 int kerberos_authentication; /* If true, permit Kerberos
65 * authentication. */
66 int kerberos_or_local_passwd; /* If true, permit kerberos
67 * and any other password
68 * authentication mechanism,
69 * such as SecurID or
70 * /etc/passwd */
71 int kerberos_ticket_cleanup; /* If true, destroy ticket
72 * file on logout. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100073#endif
74#ifdef AFS
Damien Miller95def091999-11-25 00:26:21 +110075 int kerberos_tgt_passing; /* If true, permit Kerberos tgt
76 * passing. */
77 int afs_token_passing; /* If true, permit AFS token passing. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100078#endif
Damien Miller95def091999-11-25 00:26:21 +110079 int password_authentication; /* If true, permit password
80 * authentication. */
Damien Miller874d77b2000-10-14 16:23:11 +110081 int kbd_interactive_authentication; /* If true, permit */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100082#ifdef SKEY
Damien Miller95def091999-11-25 00:26:21 +110083 int skey_authentication; /* If true, permit s/key
84 * authentication. */
Damien Millerd4a8b7e1999-10-27 13:42:43 +100085#endif
Damien Miller95def091999-11-25 00:26:21 +110086 int permit_empty_passwd; /* If false, do not permit empty
87 * passwords. */
88 int use_login; /* If true, login(1) is used */
Damien Miller50a41ed2000-10-16 12:14:42 +110089 int allow_tcp_forwarding;
Damien Miller95def091999-11-25 00:26:21 +110090 unsigned int num_allow_users;
91 char *allow_users[MAX_ALLOW_USERS];
92 unsigned int num_deny_users;
93 char *deny_users[MAX_DENY_USERS];
94 unsigned int num_allow_groups;
95 char *allow_groups[MAX_ALLOW_GROUPS];
96 unsigned int num_deny_groups;
97 char *deny_groups[MAX_DENY_GROUPS];
Damien Millerf6d9e222000-06-18 14:50:44 +100098
99 unsigned int num_subsystems;
100 char *subsystem_name[MAX_SUBSYSTEMS];
101 char *subsystem_command[MAX_SUBSYSTEMS];
Damien Miller37023962000-07-11 17:31:38 +1000102
Damien Miller942da032000-08-18 13:59:06 +1000103 int max_startups_begin;
104 int max_startups_rate;
Damien Miller37023962000-07-11 17:31:38 +1000105 int max_startups;
106
Damien Miller95def091999-11-25 00:26:21 +1100107} ServerOptions;
Damien Miller5428f641999-11-25 11:54:57 +1100108/*
109 * Initializes the server options to special values that indicate that they
110 * have not yet been set.
111 */
Damien Miller95def091999-11-25 00:26:21 +1100112void initialize_server_options(ServerOptions * options);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000113
Damien Miller5428f641999-11-25 11:54:57 +1100114/*
115 * Reads the server configuration file. This only sets the values for those
116 * options that have the special value indicating they have not been set.
117 */
Damien Miller95def091999-11-25 00:26:21 +1100118void read_server_config(ServerOptions * options, const char *filename);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000119
120/* Sets values for those values that have not yet been set. */
Damien Miller95def091999-11-25 00:26:21 +1100121void fill_default_server_options(ServerOptions * options);
Damien Millerd4a8b7e1999-10-27 13:42:43 +1000122
Damien Miller95def091999-11-25 00:26:21 +1100123#endif /* SERVCONF_H */