[openssh.git] / servconf.h

/*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 * Definitions for server configuration data and for the functions reading it.
 *
 * As far as I am concerned, the code I have written for this software
 * can be used freely for any purpose.  Any derived versions of this
 * software must be clearly marked as such, and if the derived work is
 * incompatible with the protocol description in the RFC file, it must be
 * called by a name other than "ssh" or "Secure Shell".
 */

/* RCSID("$OpenBSD: servconf.h,v 1.46 2001/06/26 16:15:24 dugsong Exp $"); */

#ifndef SERVCONF_H
#define SERVCONF_H

#define MAX_PORTS		256	/* Max # ports. */

#define MAX_ALLOW_USERS		256	/* Max # users on allow list. */
#define MAX_DENY_USERS		256	/* Max # users on deny list. */
#define MAX_ALLOW_GROUPS	256	/* Max # groups on allow list. */
#define MAX_DENY_GROUPS		256	/* Max # groups on deny list. */
#define MAX_SUBSYSTEMS		256	/* Max # subsystems. */
#define MAX_HOSTKEYS		256	/* Max # hostkeys. */

/* permit_root_login */
#define	PERMIT_NOT_SET		-1
#define	PERMIT_NO		0
#define	PERMIT_FORCED_ONLY	1
#define	PERMIT_NO_PASSWD	2
#define	PERMIT_YES		3


typedef struct {
	u_int num_ports;
	u_int ports_from_cmdline;
	u_short ports[MAX_PORTS];	/* Port number to listen on. */
	char   *listen_addr;		/* Address on which the server listens. */
	struct addrinfo *listen_addrs;	/* Addresses on which the server listens. */
	char   *host_key_files[MAX_HOSTKEYS];	/* Files containing host keys. */
	int     num_host_key_files;     /* Number of files for host keys. */
	char   *pid_file;	/* Where to put our pid */
	int     server_key_bits;/* Size of the server key. */
	int     login_grace_time;	/* Disconnect if no auth in this time
					 * (sec). */
	int     key_regeneration_time;	/* Server key lifetime (seconds). */
	int     permit_root_login;	/* PERMIT_*, see above */
	int     ignore_rhosts;	/* Ignore .rhosts and .shosts. */
	int     ignore_user_known_hosts;	/* Ignore ~/.ssh/known_hosts
						 * for RhostsRsaAuth */
	int     print_motd;	/* If true, print /etc/motd. */
	int	print_lastlog;	/* If true, print lastlog */
	int     check_mail;	/* If true, check for new mail. */
	int     x11_forwarding;	/* If true, permit inet (spoofing) X11 fwd. */
	int     x11_display_offset;	/* What DISPLAY number to start
					 * searching at */
	char   *xauth_location;	/* Location of xauth program */
	int     strict_modes;	/* If true, require string home dir modes. */
	int     keepalives;	/* If true, set SO_KEEPALIVE. */
	char   *ciphers;	/* Supported SSH2 ciphers. */
	char   *macs;		/* Supported SSH2 macs. */
	int	protocol;	/* Supported protocol versions. */
	int     gateway_ports;	/* If true, allow remote connects to forwarded ports. */
	SyslogFacility log_facility;	/* Facility for system logging. */
	LogLevel log_level;	/* Level for system logging. */
	int     rhosts_authentication;	/* If true, permit rhosts
					 * authentication. */
	int     rhosts_rsa_authentication;	/* If true, permit rhosts RSA
						 * authentication. */
	int     hostbased_authentication;	/* If true, permit ssh2 hostbased auth */
	int     hostbased_uses_name_from_packet_only; /* experimental */
	int     rsa_authentication;	/* If true, permit RSA authentication. */
	int     pubkey_authentication;	/* If true, permit ssh2 pubkey authentication. */
#if defined(KRB4) || defined(KRB5)
	int     kerberos_authentication;	/* If true, permit Kerberos
						 * authentication. */
	int     kerberos_or_local_passwd;	/* If true, permit kerberos
						 * and any other password
						 * authentication mechanism,
						 * such as SecurID or
						 * /etc/passwd */
	int     kerberos_ticket_cleanup;	/* If true, destroy ticket
						 * file on logout. */
#endif
#if defined(AFS) || defined(KRB5)
	int     kerberos_tgt_passing;	/* If true, permit Kerberos TGT
					 * passing. */
#endif
#ifdef AFS
	int     afs_token_passing;	/* If true, permit AFS token passing. */
#endif
	int     password_authentication;	/* If true, permit password
						 * authentication. */
	int     kbd_interactive_authentication;	/* If true, permit */
	int     challenge_response_authentication;
	int     permit_empty_passwd;	/* If false, do not permit empty
					 * passwords. */
	int     use_login;	/* If true, login(1) is used */
	int	allow_tcp_forwarding;
	u_int num_allow_users;
	char   *allow_users[MAX_ALLOW_USERS];
	u_int num_deny_users;
	char   *deny_users[MAX_DENY_USERS];
	u_int num_allow_groups;
	char   *allow_groups[MAX_ALLOW_GROUPS];
	u_int num_deny_groups;
	char   *deny_groups[MAX_DENY_GROUPS];

	u_int num_subsystems;
	char   *subsystem_name[MAX_SUBSYSTEMS];
	char   *subsystem_command[MAX_SUBSYSTEMS];

	int	max_startups_begin;
	int	max_startups_rate;
	int	max_startups;
	char   *banner;			/* SSH-2 banner message */
	int	reverse_mapping_check;	/* cross-check ip and dns */
	int	client_alive_interval;	/*
					 * poke the client this often to 
					 * see if it's still there 
					 */
	int	client_alive_count_max;	/*
					 *If the client is unresponsive
					 * for this many intervals, above
					 * diconnect the session 
					 */
	char   *authorized_keys_file;   /* File containing public RSA keys */ 
	char   *authorized_keys_file2;  /* File containing public SSH2 keys */
	int	pam_authentication_via_kbd_int;
}       ServerOptions;
/*
 * Initializes the server options to special values that indicate that they
 * have not yet been set.
 */
void    initialize_server_options(ServerOptions *);

/*
 * Reads the server configuration file.  This only sets the values for those
 * options that have the special value indicating they have not been set.
 */
void    read_server_config(ServerOptions *, const char *);

/* Sets values for those values that have not yet been set. */
void    fill_default_server_options(ServerOptions *);

#endif				/* SERVCONF_H */
Commit	Line	Data
8efc0c15	1	/*
5260325f	2	* Author: Tatu Ylonen <ylo@cs.hut.fi>
5260325f	3	* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5260325f	4	* All rights reserved
5260325f	5	* Definitions for server configuration data and for the functions reading it.
6ae2364d	6	*
bcbf86ec	7	* 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".
5260325f	12	*/
8efc0c15	13
ced49be2	14	/* RCSID("$OpenBSD: servconf.h,v 1.46 2001/06/26 16:15:24 dugsong Exp $"); */
8efc0c15	15
	16	#ifndef SERVCONF_H
	17	#define SERVCONF_H
	18
48e671d5	19	#define MAX_PORTS 256 /* Max # ports. */
48e671d5	20
5260325f	21	#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. */
38c295d6	25	#define MAX_SUBSYSTEMS 256 /* Max # subsystems. */
fa08c86b	26	#define MAX_HOSTKEYS 256 /* Max # hostkeys. */
8efc0c15	27
15853e93	28	/* permit_root_login */
	29	#define PERMIT_NOT_SET -1
	30	#define PERMIT_NO 0
	31	#define PERMIT_FORCED_ONLY 1
	32	#define PERMIT_NO_PASSWD 2
	33	#define PERMIT_YES 3
	34
	35
5260325f	36	typedef struct {
1e3b8b07	37	u_int num_ports;
1e3b8b07	38	u_int ports_from_cmdline;
48e671d5	39	u_short ports[MAX_PORTS]; /* Port number to listen on. */
	40	char listen_addr; / Address on which the server listens. */
	41	struct addrinfo listen_addrs; / Addresses on which the server listens. */
fa08c86b	42	char host_key_files[MAX_HOSTKEYS]; / Files containing host keys. */
fa08c86b	43	int num_host_key_files; /* Number of files for host keys. */
0fbe8c74	44	char pid_file; / Where to put our pid */
5260325f	45	int server_key_bits;/* Size of the server key. */
	46	int login_grace_time; /* Disconnect if no auth in this time
	47	* (sec). */
	48	int key_regeneration_time; /* Server key lifetime (seconds). */
15853e93	49	int permit_root_login; /* PERMIT_, see above /
5260325f	50	int ignore_rhosts; /* Ignore .rhosts and .shosts. */
	51	int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
	52	* for RhostsRsaAuth */
	53	int print_motd; /* If true, print /etc/motd. */
4f4648f9	54	int print_lastlog; /* If true, print lastlog */
5260325f	55	int check_mail; /* If true, check for new mail. */
	56	int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
	57	int x11_display_offset; /* What DISPLAY number to start
	58	* searching at */
fa649821	59	char xauth_location; / Location of xauth program */
5260325f	60	int strict_modes; /* If true, require string home dir modes. */
5260325f	61	int keepalives; /* If true, set SO_KEEPALIVE. */
b2552997	62	char ciphers; / Supported SSH2 ciphers. */
	63	char macs; / Supported SSH2 macs. */
	64	int protocol; /* Supported protocol versions. */
1d1ffb87	65	int gateway_ports; /* If true, allow remote connects to forwarded ports. */
5260325f	66	SyslogFacility log_facility; /* Facility for system logging. */
	67	LogLevel log_level; /* Level for system logging. */
	68	int rhosts_authentication; /* If true, permit rhosts
	69	* authentication. */
	70	int rhosts_rsa_authentication; /* If true, permit rhosts RSA
	71	* authentication. */
8002af61	72	int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
8002af61	73	int hostbased_uses_name_from_packet_only; /* experimental */
5260325f	74	int rsa_authentication; /* If true, permit RSA authentication. */
fa08c86b	75	int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */
ced49be2	76	#if defined(KRB4) \|\| defined(KRB5)
5260325f	77	int kerberos_authentication; /* If true, permit Kerberos
	78	* authentication. */
	79	int kerberos_or_local_passwd; /* If true, permit kerberos
	80	* and any other password
	81	* authentication mechanism,
	82	* such as SecurID or
	83	* /etc/passwd */
	84	int kerberos_ticket_cleanup; /* If true, destroy ticket
	85	* file on logout. */
8efc0c15	86	#endif
ced49be2	87	#if defined(AFS) \|\| defined(KRB5)
ced49be2	88	int kerberos_tgt_passing; /* If true, permit Kerberos TGT
5260325f	89	* passing. */
ced49be2	90	#endif
ced49be2	91	#ifdef AFS
5260325f	92	int afs_token_passing; /* If true, permit AFS token passing. */
8efc0c15	93	#endif
5260325f	94	int password_authentication; /* If true, permit password
5260325f	95	* authentication. */
94ec8c6b	96	int kbd_interactive_authentication; /* If true, permit */
5ba55ada	97	int challenge_response_authentication;
5260325f	98	int permit_empty_passwd; /* If false, do not permit empty
	99	* passwords. */
	100	int use_login; /* If true, login(1) is used */
33de75a3	101	int allow_tcp_forwarding;
1e3b8b07	102	u_int num_allow_users;
5260325f	103	char *allow_users[MAX_ALLOW_USERS];
1e3b8b07	104	u_int num_deny_users;
5260325f	105	char *deny_users[MAX_DENY_USERS];
1e3b8b07	106	u_int num_allow_groups;
5260325f	107	char *allow_groups[MAX_ALLOW_GROUPS];
1e3b8b07	108	u_int num_deny_groups;
5260325f	109	char *deny_groups[MAX_DENY_GROUPS];
38c295d6	110
1e3b8b07	111	u_int num_subsystems;
38c295d6	112	char *subsystem_name[MAX_SUBSYSTEMS];
38c295d6	113	char *subsystem_command[MAX_SUBSYSTEMS];
089fbbd2	114
c345cf9d	115	int max_startups_begin;
c345cf9d	116	int max_startups_rate;
089fbbd2	117	int max_startups;
eea39c02	118	char banner; / SSH-2 banner message */
61e96248	119	int reverse_mapping_check; /* cross-check ip and dns */
3ffc6336	120	int client_alive_interval; /*
	121	* poke the client this often to
	122	* see if it's still there
	123	*/
	124	int client_alive_count_max; /*
	125	*If the client is unresponsive
	126	* for this many intervals, above
	127	* diconnect the session
	128	*/
c8445989	129	char authorized_keys_file; / File containing public RSA keys */
c8445989	130	char authorized_keys_file2; / File containing public SSH2 keys */
10f72868	131	int pam_authentication_via_kbd_int;
5260325f	132	} ServerOptions;
aa3378df	133	/*
	134	* Initializes the server options to special values that indicate that they
	135	* have not yet been set.
	136	*/
1c06a9ca	137	void initialize_server_options(ServerOptions *);
8efc0c15	138
aa3378df	139	/*
	140	* Reads the server configuration file. This only sets the values for those
	141	* options that have the special value indicating they have not been set.
	142	*/
1c06a9ca	143	void read_server_config(ServerOptions , const char );
8efc0c15	144
8efc0c15	145	/* Sets values for those values that have not yet been set. */
1c06a9ca	146	void fill_default_server_options(ServerOptions *);
8efc0c15	147
5260325f	148	#endif /* SERVCONF_H */