[openssh.git] / servconf.h

/* $OpenBSD: servconf.h,v 1.73 2006/03/25 22:22:43 djm Exp $ */

/*
 * 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".
 */

#ifndef SERVCONF_H
#define SERVCONF_H

#include "buffer.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. */
#define MAX_ACCEPT_ENV		256	/* Max # of env vars. */

/* 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

#define DEFAULT_AUTH_FAIL_MAX	6	/* Default for MaxAuthTries */

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. */
	int     address_family;		/* Address family used by the server. */
	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     x11_forwarding;	/* If true, permit inet (spoofing) X11 fwd. */
	int     x11_display_offset;	/* What DISPLAY number to start
					 * searching at */
	int     x11_use_localhost;	/* If true, use localhost for fake X11 server. */
	char   *xauth_location;	/* Location of xauth program */
	int     strict_modes;	/* If true, require string home dir modes. */
	int     tcp_keep_alive;	/* 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_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. */
	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. */
	int     kerberos_get_afs_token;		/* If true, try to get AFS token if
						 * authenticated with Kerberos. */
	int     gss_authentication;	/* If true, permit GSSAPI authentication */
	int     gss_cleanup_creds;	/* If true, destroy cred cache on logout */
	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     permit_user_env;	/* If true, read ~/.ssh/environment */
	int     use_login;	/* If true, login(1) is used */
	int     compression;	/* If true, compression is allowed */
	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];

	u_int num_accept_env;
	char   *accept_env[MAX_ACCEPT_ENV];

	int	max_startups_begin;
	int	max_startups_rate;
	int	max_startups;
	int	max_authtries;
	char   *banner;			/* SSH-2 banner message */
	int	use_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,
					 * disconnect the session
					 */

	char   *authorized_keys_file;	/* File containing public keys */
	char   *authorized_keys_file2;

	int	use_pam;		/* Enable auth via PAM */

	int	permit_tun;
}       ServerOptions;

void	 initialize_server_options(ServerOptions *);
void	 fill_default_server_options(ServerOptions *);
int	 process_server_config_line(ServerOptions *, char *, const char *, int);
void	 load_server_config(const char *, Buffer *);
void	 parse_server_config(ServerOptions *, const char *, Buffer *);

#endif				/* SERVCONF_H */
Commit	Line	Data
56f824f3	1	/* $OpenBSD: servconf.h,v 1.73 2006/03/25 22:22:43 djm Exp $ */
93c3b6de	2
8efc0c15	3	/*
5260325f	4	* Author: Tatu Ylonen <ylo@cs.hut.fi>
5260325f	5	* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5260325f	6	* All rights reserved
5260325f	7	* Definitions for server configuration data and for the functions reading it.
6ae2364d	8	*
bcbf86ec	9	* As far as I am concerned, the code I have written for this software
	10	* can be used freely for any purpose. Any derived versions of this
	11	* software must be clearly marked as such, and if the derived work is
	12	* incompatible with the protocol description in the RFC file, it must be
	13	* called by a name other than "ssh" or "Secure Shell".
5260325f	14	*/
8efc0c15	15
8efc0c15	16	#ifndef SERVCONF_H
	17	#define SERVCONF_H
	18
b9a549d7	19	#include "buffer.h"
b9a549d7	20
48e671d5	21	#define MAX_PORTS 256 /* Max # ports. */
48e671d5	22
5260325f	23	#define MAX_ALLOW_USERS 256 /* Max # users on allow list. */
	24	#define MAX_DENY_USERS 256 /* Max # users on deny list. */
	25	#define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */
	26	#define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */
38c295d6	27	#define MAX_SUBSYSTEMS 256 /* Max # subsystems. */
fa08c86b	28	#define MAX_HOSTKEYS 256 /* Max # hostkeys. */
61a2c1da	29	#define MAX_ACCEPT_ENV 256 /* Max # of env vars. */
8efc0c15	30
15853e93	31	/* permit_root_login */
	32	#define PERMIT_NOT_SET -1
	33	#define PERMIT_NO 0
	34	#define PERMIT_FORCED_ONLY 1
	35	#define PERMIT_NO_PASSWD 2
	36	#define PERMIT_YES 3
	37
af4bd935	38	#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
15853e93	39
5260325f	40	typedef struct {
1e3b8b07	41	u_int num_ports;
1e3b8b07	42	u_int ports_from_cmdline;
48e671d5	43	u_short ports[MAX_PORTS]; /* Port number to listen on. */
	44	char listen_addr; / Address on which the server listens. */
	45	struct addrinfo listen_addrs; / Addresses on which the server listens. */
31b41ceb	46	int address_family; /* Address family used by the server. */
fa08c86b	47	char host_key_files[MAX_HOSTKEYS]; / Files containing host keys. */
fa08c86b	48	int num_host_key_files; /* Number of files for host keys. */
0fbe8c74	49	char pid_file; / Where to put our pid */
5260325f	50	int server_key_bits;/* Size of the server key. */
	51	int login_grace_time; /* Disconnect if no auth in this time
	52	* (sec). */
	53	int key_regeneration_time; /* Server key lifetime (seconds). */
15853e93	54	int permit_root_login; /* PERMIT_, see above /
5260325f	55	int ignore_rhosts; /* Ignore .rhosts and .shosts. */
	56	int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
	57	* for RhostsRsaAuth */
	58	int print_motd; /* If true, print /etc/motd. */
4f4648f9	59	int print_lastlog; /* If true, print lastlog */
5260325f	60	int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
	61	int x11_display_offset; /* What DISPLAY number to start
	62	* searching at */
e6e573bd	63	int x11_use_localhost; /* If true, use localhost for fake X11 server. */
fa649821	64	char xauth_location; / Location of xauth program */
5260325f	65	int strict_modes; /* If true, require string home dir modes. */
fd573618	66	int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
b2552997	67	char ciphers; / Supported SSH2 ciphers. */
	68	char macs; / Supported SSH2 macs. */
	69	int protocol; /* Supported protocol versions. */
1d1ffb87	70	int gateway_ports; /* If true, allow remote connects to forwarded ports. */
5260325f	71	SyslogFacility log_facility; /* Facility for system logging. */
5260325f	72	LogLevel log_level; /* Level for system logging. */
5260325f	73	int rhosts_rsa_authentication; /* If true, permit rhosts RSA
5260325f	74	* authentication. */
8002af61	75	int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
8002af61	76	int hostbased_uses_name_from_packet_only; /* experimental */
5260325f	77	int rsa_authentication; /* If true, permit RSA authentication. */
fa08c86b	78	int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */
5260325f	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. */
a1e30b47	88	int kerberos_get_afs_token; /* If true, try to get AFS token if
a1e30b47	89	* authenticated with Kerberos. */
7364bd04	90	int gss_authentication; /* If true, permit GSSAPI authentication */
7364bd04	91	int gss_cleanup_creds; /* If true, destroy cred cache on logout */
5260325f	92	int password_authentication; /* If true, permit password
5260325f	93	* authentication. */
94ec8c6b	94	int kbd_interactive_authentication; /* If true, permit */
5ba55ada	95	int challenge_response_authentication;
5260325f	96	int permit_empty_passwd; /* If false, do not permit empty
5260325f	97	* passwords. */
f00bab84	98	int permit_user_env; /* If true, read ~/.ssh/environment */
5260325f	99	int use_login; /* If true, login(1) is used */
636f76ca	100	int compression; /* If true, compression is allowed */
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
61a2c1da	115	u_int num_accept_env;
	116	char *accept_env[MAX_ACCEPT_ENV];
	117
c345cf9d	118	int max_startups_begin;
c345cf9d	119	int max_startups_rate;
089fbbd2	120	int max_startups;
af4bd935	121	int max_authtries;
eea39c02	122	char banner; / SSH-2 banner message */
c5a7d788	123	int use_dns;
3ffc6336	124	int client_alive_interval; /*
184eed6a	125	* poke the client this often to
184eed6a	126	* see if it's still there
3ffc6336	127	*/
3ffc6336	128	int client_alive_count_max; /*
6d7b3036	129	* If the client is unresponsive
6d7b3036	130	* for this many intervals above,
184eed6a	131	* disconnect the session
3ffc6336	132	*/
4f1f4d8d	133
	134	char authorized_keys_file; / File containing public keys */
	135	char *authorized_keys_file2;
d20f3c9e	136
7fceb20d	137	int use_pam; /* Enable auth via PAM */
d20f3c9e	138
d20f3c9e	139	int permit_tun;
5260325f	140	} ServerOptions;
8efc0c15	141
255cabd9	142	void initialize_server_options(ServerOptions *);
255cabd9	143	void fill_default_server_options(ServerOptions *);
2717fa0f	144	int process_server_config_line(ServerOptions , char , const char *, int);
b9a549d7	145	void load_server_config(const char , Buffer );
b9a549d7	146	void parse_server_config(ServerOptions , const char , Buffer *);
8efc0c15	147
5260325f	148	#endif /* SERVCONF_H */