servconf.h revision 92559 
1/*	$OpenBSD: servconf.h,v 1.54 2002/03/04 17:27:39 stevesk Exp $	*/
2/*	$FreeBSD: head/crypto/openssh/servconf.h 92559 2002-03-18 10:09:43Z des $	*/
3
4/*
5 * Author: Tatu Ylonen <ylo@cs.hut.fi>
6 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
7 *                    All rights reserved
8 * Definitions for server configuration data and for the functions reading it.
9 *
10 * As far as I am concerned, the code I have written for this software
11 * can be used freely for any purpose.  Any derived versions of this
12 * software must be clearly marked as such, and if the derived work is
13 * incompatible with the protocol description in the RFC file, it must be
14 * called by a name other than "ssh" or "Secure Shell".
15 */
16
17#ifndef SERVCONF_H
18#define SERVCONF_H
19
20#define MAX_PORTS		256	/* Max # ports. */
21
22#define MAX_ALLOW_USERS		256	/* Max # users on allow list. */
23#define MAX_DENY_USERS		256	/* Max # users on deny list. */
24#define MAX_ALLOW_GROUPS	256	/* Max # groups on allow list. */
25#define MAX_DENY_GROUPS		256	/* Max # groups on deny list. */
26#define MAX_SUBSYSTEMS		256	/* Max # subsystems. */
27#define MAX_HOSTKEYS		256	/* Max # hostkeys. */
28
29/* permit_root_login */
30#define	PERMIT_NOT_SET		-1
31#define	PERMIT_NO		0
32#define	PERMIT_FORCED_ONLY	1
33#define	PERMIT_NO_PASSWD	2
34#define	PERMIT_YES		3
35
36
37typedef struct {
38	u_int num_ports;
39	u_int ports_from_cmdline;
40	u_short ports[MAX_PORTS];	/* Port number to listen on. */
41	char   *listen_addr;		/* Address on which the server listens. */
42	struct addrinfo *listen_addrs;	/* Addresses on which the server listens. */
43	char   *host_key_files[MAX_HOSTKEYS];	/* Files containing host keys. */
44	int     num_host_key_files;     /* Number of files for host keys. */
45	char   *pid_file;	/* Where to put our pid */
46	int     server_key_bits;/* Size of the server key. */
47	int     login_grace_time;	/* Disconnect if no auth in this time
48					 * (sec). */
49	int     key_regeneration_time;	/* Server key lifetime (seconds). */
50	int     permit_root_login;	/* PERMIT_*, see above */
51	int     ignore_rhosts;	/* Ignore .rhosts and .shosts. */
52	int     ignore_user_known_hosts;	/* Ignore ~/.ssh/known_hosts
53						 * for RhostsRsaAuth */
54	int     print_motd;	/* If true, print /etc/motd. */
55	int	print_lastlog;	/* If true, print lastlog */
56	int	check_mail;	/* If true, check for new mail */
57	int     x11_forwarding;	/* If true, permit inet (spoofing) X11 fwd. */
58	int     x11_display_offset;	/* What DISPLAY number to start
59					 * searching at */
60	int     x11_use_localhost;	/* If true, use localhost for fake X11 server. */
61	char   *xauth_location;	/* Location of xauth program */
62	int     strict_modes;	/* If true, require string home dir modes. */
63	int     keepalives;	/* If true, set SO_KEEPALIVE. */
64	char   *ciphers;	/* Supported SSH2 ciphers. */
65	char   *macs;		/* Supported SSH2 macs. */
66	int	protocol;	/* Supported protocol versions. */
67	int     gateway_ports;	/* If true, allow remote connects to forwarded ports. */
68	SyslogFacility log_facility;	/* Facility for system logging. */
69	LogLevel log_level;	/* Level for system logging. */
70	int     rhosts_authentication;	/* If true, permit rhosts
71					 * authentication. */
72	int     rhosts_rsa_authentication;	/* If true, permit rhosts RSA
73						 * authentication. */
74	int     hostbased_authentication;	/* If true, permit ssh2 hostbased auth */
75	int     hostbased_uses_name_from_packet_only; /* experimental */
76	int     rsa_authentication;	/* If true, permit RSA authentication. */
77	int     pubkey_authentication;	/* If true, permit ssh2 pubkey authentication. */
78#if defined(KRB4) || defined(KRB5)
79	int     kerberos_authentication;	/* If true, permit Kerberos
80						 * authentication. */
81	int     kerberos_or_local_passwd;	/* If true, permit kerberos
82						 * and any other password
83						 * authentication mechanism,
84						 * such as SecurID or
85						 * /etc/passwd */
86	int     kerberos_ticket_cleanup;	/* If true, destroy ticket
87						 * file on logout. */
88#endif
89#if defined(AFS) || defined(KRB5)
90	int     kerberos_tgt_passing;	/* If true, permit Kerberos TGT
91					 * passing. */
92#endif
93#ifdef AFS
94	int     afs_token_passing;	/* If true, permit AFS token passing. */
95#endif
96	int     password_authentication;	/* If true, permit password
97						 * authentication. */
98	int     kbd_interactive_authentication;	/* If true, permit */
99	int     challenge_response_authentication;
100	int     permit_empty_passwd;	/* If false, do not permit empty
101					 * passwords. */
102	int     use_login;	/* If true, login(1) is used */
103	int	allow_tcp_forwarding;
104	u_int num_allow_users;
105	char   *allow_users[MAX_ALLOW_USERS];
106	u_int num_deny_users;
107	char   *deny_users[MAX_DENY_USERS];
108	u_int num_allow_groups;
109	char   *allow_groups[MAX_ALLOW_GROUPS];
110	u_int num_deny_groups;
111	char   *deny_groups[MAX_DENY_GROUPS];
112	unsigned int connections_period;
113
114	u_int num_subsystems;
115	char   *subsystem_name[MAX_SUBSYSTEMS];
116	char   *subsystem_command[MAX_SUBSYSTEMS];
117
118	int	max_startups_begin;
119	int	max_startups_rate;
120	int	max_startups;
121	char   *banner;			/* SSH-2 banner message */
122	int	verify_reverse_mapping;	/* cross-check ip and dns */
123	int	client_alive_interval;	/*
124					 * poke the client this often to
125					 * see if it's still there
126					 */
127	int	client_alive_count_max;	/*
128					 * If the client is unresponsive
129					 * for this many intervals above,
130					 * disconnect the session
131					 */
132
133	char   *authorized_keys_file;	/* File containing public keys */
134	char   *authorized_keys_file2;
135
136}       ServerOptions;
137
138void	 initialize_server_options(ServerOptions *);
139void	 read_server_config(ServerOptions *, const char *);
140void	 fill_default_server_options(ServerOptions *);
141int	 process_server_config_line(ServerOptions *, char *, const char *, int);
142
143
144#endif				/* SERVCONF_H */
145