[gssapi-openssh.git] / openssh / servconf.h

/* $OpenBSD: servconf.h,v 1.80 2007/02/19 10:45:58 dtucker 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

#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. */
#define MAX_MATCH_GROUPS	256	/* Max # of groups for Match. */

/* 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. */
#ifdef SESSION_HOOKS
        int     session_hooks_allow;        /* If true, permit user hooks */
        char*   session_hooks_startup_cmd;  /* cmd to be executed before */
        char*   session_hooks_shutdown_cmd; /* cmd to be executed after */
#endif
	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_keyex;		/* If true, permit GSSAPI key exchange */
	int     gss_cleanup_creds;	/* If true, destroy cred cache on logout */
	int 	gss_strict_acceptor;	/* If true, restrict the GSSAPI acceptor name */
	char*   gss_creds_path;	/* If true, destroy cred cache on logout */
	int     gsi_allow_limited_proxy;	/* If true, accept limited proxies */
	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];
	char   *subsystem_args[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;

	char   *adm_forced_command;

	int	use_pam;		/* Enable auth via PAM */
        int     none_enabled;           /* enable NONE cipher switch */
        int     tcp_rcv_buf_poll;       /* poll tcp rcv window in autotuning kernels*/
	int	hpn_disabled;		/* disable hpn functionality. false by default */
	int	hpn_buffer_size;	/* set the hpn buffer size - default 3MB */

	int	permit_tun;

	int	num_permitted_opens;
}       ServerOptions;

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

#endif				/* SERVCONF_H */
Commit	Line	Data
0b90ac93	1	/* $OpenBSD: servconf.h,v 1.80 2007/02/19 10:45:58 dtucker Exp $ */
e9702f7d	2
3c0ef626	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	* Definitions for server configuration data and for the functions reading it.
	8	*
	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".
	14	*/
	15
3c0ef626	16	#ifndef SERVCONF_H
	17	#define SERVCONF_H
	18
	19	#define MAX_PORTS 256 /* Max # ports. */
	20
	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. */
	25	#define MAX_SUBSYSTEMS 256 /* Max # subsystems. */
	26	#define MAX_HOSTKEYS 256 /* Max # hostkeys. */
7e82606e	27	#define MAX_ACCEPT_ENV 256 /* Max # of env vars. */
30460aeb	28	#define MAX_MATCH_GROUPS 256 /* Max # of groups for Match. */
3c0ef626	29
	30	/* permit_root_login */
	31	#define PERMIT_NOT_SET -1
	32	#define PERMIT_NO 0
	33	#define PERMIT_FORCED_ONLY 1
	34	#define PERMIT_NO_PASSWD 2
	35	#define PERMIT_YES 3
	36
7e82606e	37	#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
3c0ef626	38
	39	typedef struct {
	40	u_int num_ports;
	41	u_int ports_from_cmdline;
	42	u_short ports[MAX_PORTS]; /* Port number to listen on. */
	43	char listen_addr; / Address on which the server listens. */
	44	struct addrinfo listen_addrs; / Addresses on which the server listens. */
dfddba3d	45	int address_family; /* Address family used by the server. */
3c0ef626	46	char host_key_files[MAX_HOSTKEYS]; / Files containing host keys. */
	47	int num_host_key_files; /* Number of files for host keys. */
	48	char pid_file; / Where to put our pid */
	49	int server_key_bits;/* Size of the server key. */
	50	int login_grace_time; /* Disconnect if no auth in this time
	51	* (sec). */
	52	int key_regeneration_time; /* Server key lifetime (seconds). */
	53	int permit_root_login; /* PERMIT_, see above /
	54	int ignore_rhosts; /* Ignore .rhosts and .shosts. */
	55	int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
	56	* for RhostsRsaAuth */
	57	int print_motd; /* If true, print /etc/motd. */
	58	int print_lastlog; /* If true, print lastlog */
	59	int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
	60	int x11_display_offset; /* What DISPLAY number to start
	61	* searching at */
e9702f7d	62	int x11_use_localhost; /* If true, use localhost for fake X11 server. */
3c0ef626	63	char xauth_location; / Location of xauth program */
3c0ef626	64	int strict_modes; /* If true, require string home dir modes. */
540d72c3	65	int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
3c0ef626	66	char ciphers; / Supported SSH2 ciphers. */
	67	char macs; / Supported SSH2 macs. */
	68	int protocol; /* Supported protocol versions. */
	69	int gateway_ports; /* If true, allow remote connects to forwarded ports. */
	70	SyslogFacility log_facility; /* Facility for system logging. */
	71	LogLevel log_level; /* Level for system logging. */
3c0ef626	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. */
3c0ef626	78	int kerberos_authentication; /* If true, permit Kerberos
	79	* authentication. */
	80	int kerberos_or_local_passwd; /* If true, permit kerberos
	81	* and any other password
	82	* authentication mechanism,
	83	* such as SecurID or
	84	* /etc/passwd */
	85	int kerberos_ticket_cleanup; /* If true, destroy ticket
	86	* file on logout. */
75be3237	87	#ifdef SESSION_HOOKS
	88	int session_hooks_allow; /* If true, permit user hooks */
	89	char* session_hooks_startup_cmd; /* cmd to be executed before */
	90	char* session_hooks_shutdown_cmd; /* cmd to be executed after */
3c0ef626	91	#endif
540d72c3	92	int kerberos_get_afs_token; /* If true, try to get AFS token if
540d72c3	93	* authenticated with Kerberos. */
7cac2b65	94	int gss_authentication; /* If true, permit GSSAPI authentication */
fe4ad273	95	int gss_keyex; /* If true, permit GSSAPI key exchange */
7cac2b65	96	int gss_cleanup_creds; /* If true, destroy cred cache on logout */
f713db99	97	int gss_strict_acceptor; /* If true, restrict the GSSAPI acceptor name */
9c0efabd	98	char* gss_creds_path; /* If true, destroy cred cache on logout */
826a9049	99	int gsi_allow_limited_proxy; /* If true, accept limited proxies */
3c0ef626	100	int password_authentication; /* If true, permit password
	101	* authentication. */
	102	int kbd_interactive_authentication; /* If true, permit */
	103	int challenge_response_authentication;
	104	int permit_empty_passwd; /* If false, do not permit empty
	105	* passwords. */
d03f4262	106	int permit_user_env; /* If true, read ~/.ssh/environment */
3c0ef626	107	int use_login; /* If true, login(1) is used */
44a053a3	108	int compression; /* If true, compression is allowed */
3c0ef626	109	int allow_tcp_forwarding;
	110	u_int num_allow_users;
	111	char *allow_users[MAX_ALLOW_USERS];
	112	u_int num_deny_users;
	113	char *deny_users[MAX_DENY_USERS];
	114	u_int num_allow_groups;
	115	char *allow_groups[MAX_ALLOW_GROUPS];
	116	u_int num_deny_groups;
	117	char *deny_groups[MAX_DENY_GROUPS];
	118
	119	u_int num_subsystems;
	120	char *subsystem_name[MAX_SUBSYSTEMS];
	121	char *subsystem_command[MAX_SUBSYSTEMS];
30460aeb	122	char *subsystem_args[MAX_SUBSYSTEMS];
3c0ef626	123
7e82606e	124	u_int num_accept_env;
	125	char *accept_env[MAX_ACCEPT_ENV];
	126
3c0ef626	127	int max_startups_begin;
	128	int max_startups_rate;
	129	int max_startups;
7e82606e	130	int max_authtries;
3c0ef626	131	char banner; / SSH-2 banner message */
7cac2b65	132	int use_dns;
3c0ef626	133	int client_alive_interval; /*
e9702f7d	134	* poke the client this often to
e9702f7d	135	* see if it's still there
3c0ef626	136	*/
	137	int client_alive_count_max; /*
	138	* If the client is unresponsive
	139	* for this many intervals above,
e9702f7d	140	* disconnect the session
3c0ef626	141	*/
	142
	143	char authorized_keys_file; / File containing public keys */
	144	char *authorized_keys_file2;
08822d99	145
30460aeb	146	char *adm_forced_command;
30460aeb	147
7cac2b65	148	int use_pam; /* Enable auth via PAM */
a7213e65	149	int none_enabled; /* enable NONE cipher switch */
	150	int tcp_rcv_buf_poll; /* poll tcp rcv window in autotuning kernels*/
	151	int hpn_disabled; /* disable hpn functionality. false by default */
	152	int hpn_buffer_size; /* set the hpn buffer size - default 3MB */
08822d99	153
08822d99	154	int permit_tun;
30460aeb	155
30460aeb	156	int num_permitted_opens;
3c0ef626	157	} ServerOptions;
	158
	159	void initialize_server_options(ServerOptions *);
3c0ef626	160	void fill_default_server_options(ServerOptions *);
30460aeb	161	int process_server_config_line(ServerOptions , char , const char *, int,
30460aeb	162	int , const char , const char , const char );
7e82606e	163	void load_server_config(const char , Buffer );
30460aeb	164	void parse_server_config(ServerOptions , const char , Buffer *,
	165	const char , const char , const char *);
	166	void parse_server_match_config(ServerOptions , const char , const char *,
	167	const char *);
0b90ac93	168	void copy_set_server_options(ServerOptions , ServerOptions , int);
3c0ef626	169
3c0ef626	170	#endif /* SERVCONF_H */