Home | History | Annotate | Download | only in include
      1 /*
      2  * Author: Tatu Ylonen <ylo (at) cs.hut.fi>
      3  * Copyright (c) 1995 Tatu Ylonen <ylo (at) cs.hut.fi>, Espoo, Finland
      4  *                    All rights reserved
      5  * Definitions for server configuration data and for the functions reading it.
      6  *
      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".
     12  */
     13 /*
     14  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     15  * Use is subject to license terms.
     16  */
     17 
     18 /*	$OpenBSD: servconf.h,v 1.59 2002/07/30 17:03:55 markus Exp $	*/
     19 
     20 #ifndef	_SERVCONF_H
     21 #define	_SERVCONF_H
     22 
     23 #ifdef __cplusplus
     24 extern "C" {
     25 #endif
     26 
     27 #define MAX_PORTS		256	/* Max # ports. */
     28 
     29 #define MAX_ALLOW_USERS		256	/* Max # users on allow list. */
     30 #define MAX_DENY_USERS		256	/* Max # users on deny list. */
     31 #define MAX_ALLOW_GROUPS	256	/* Max # groups on allow list. */
     32 #define MAX_DENY_GROUPS		256	/* Max # groups on deny list. */
     33 #define MAX_SUBSYSTEMS		256	/* Max # subsystems. */
     34 #define MAX_HOSTKEYS		256	/* Max # hostkeys. */
     35 
     36 /* permit_root_login */
     37 #define	PERMIT_NOT_SET		-1
     38 #define	PERMIT_NO		0
     39 #define	PERMIT_FORCED_ONLY	1
     40 #define	PERMIT_NO_PASSWD	2
     41 #define	PERMIT_YES		3
     42 
     43 typedef struct {
     44 	u_int num_ports;
     45 	u_int ports_from_cmdline;
     46 	u_short ports[MAX_PORTS];	/* Port number to listen on. */
     47 	char   *listen_addr;		/* Address on which the server listens. */
     48 	struct addrinfo *listen_addrs;	/* Addresses on which the server listens. */
     49 	char   *host_key_files[MAX_HOSTKEYS];	/* Files containing host keys. */
     50 	int     num_host_key_files;     /* Number of files for host keys. */
     51 	char   *pid_file;	/* Where to put our pid */
     52 	int     server_key_bits;/* Size of the server key. */
     53 	int     login_grace_time;	/* Disconnect if no auth in this time
     54 					 * (sec). */
     55 	int     key_regeneration_time;	/* Server key lifetime (seconds). */
     56 	int     permit_root_login;	/* PERMIT_*, see above */
     57 	int     ignore_rhosts;	/* Ignore .rhosts and .shosts. */
     58 	int     ignore_user_known_hosts;	/* Ignore ~/.ssh/known_hosts
     59 						 * for RhostsRsaAuth */
     60 	int     print_motd;	/* If true, print /etc/motd. */
     61 	int	print_lastlog;	/* If true, print lastlog */
     62 	int     x11_forwarding;	/* If true, permit inet (spoofing) X11 fwd. */
     63 	int     x11_display_offset;	/* What DISPLAY number to start
     64 					 * searching at */
     65 	int     x11_use_localhost;	/* If true, use localhost for fake X11 server. */
     66 	char   *xauth_location;	/* Location of xauth program */
     67 	int     strict_modes;	/* If true, require string home dir modes. */
     68 	int     keepalives;	/* If true, set SO_KEEPALIVE. */
     69 	char   *ciphers;	/* Supported SSH2 ciphers. */
     70 	char   *macs;		/* Supported SSH2 macs. */
     71 	int	protocol;	/* Supported protocol versions. */
     72 	int     gateway_ports;	/* If true, allow remote connects to forwarded ports. */
     73 	SyslogFacility log_facility;	/* Facility for system logging. */
     74 	LogLevel log_level;	/* Level for system logging. */
     75 	int     rhosts_authentication;	/* If true, permit rhosts
     76 					 * authentication. */
     77 	int     rhosts_rsa_authentication;	/* If true, permit rhosts RSA
     78 						 * authentication. */
     79 	int     hostbased_authentication;	/* If true, permit ssh2 hostbased auth */
     80 	int     hostbased_uses_name_from_packet_only; /* experimental */
     81 	int     rsa_authentication;	/* If true, permit RSA authentication. */
     82 	int     pubkey_authentication;	/* If true, permit ssh2 pubkey authentication. */
     83 #ifdef GSSAPI
     84 	int     gss_authentication;
     85 	int     gss_keyex;
     86 	int     gss_store_creds;
     87 	int     gss_use_session_ccache;        /* If true, delegated credentials are
     88 	                                        * stored in a session specific cache */
     89 	int 	gss_cleanup_creds;	       /* If true, destroy cred cache on logout */
     90 #endif /* GSSAPI */
     91 #if defined(KRB4) || defined(KRB5)
     92 	int     kerberos_authentication;	/* If true, permit Kerberos
     93 						 * authentication. */
     94 	int     kerberos_or_local_passwd;	/* If true, permit kerberos
     95 						 * and any other password
     96 						 * authentication mechanism,
     97 						 * such as SecurID or
     98 						 * /etc/passwd */
     99 	int     kerberos_ticket_cleanup;	/* If true, destroy ticket
    100 						 * file on logout. */
    101 #endif
    102 #if defined(AFS) || defined(KRB5)
    103 	int     kerberos_tgt_passing;	/* If true, permit Kerberos TGT
    104 					 * passing. */
    105 #endif
    106 #ifdef AFS
    107 	int     afs_token_passing;	/* If true, permit AFS token passing. */
    108 #endif
    109 	int     password_authentication;	/* If true, permit password
    110 						 * authentication. */
    111 	int     kbd_interactive_authentication;	/* If true, permit */
    112 	int     challenge_response_authentication;
    113 	int     permit_empty_passwd;	/* If false, do not permit empty
    114 					 * passwords. */
    115 	int     permit_user_env;	/* If true, read ~/.ssh/environment */
    116 	int     use_login;	/* If true, login(1) is used */
    117 	int     compression;	/* If true, compression is allowed */
    118 	int	allow_tcp_forwarding;
    119 	u_int num_allow_users;
    120 	char   *allow_users[MAX_ALLOW_USERS];
    121 	u_int num_deny_users;
    122 	char   *deny_users[MAX_DENY_USERS];
    123 	u_int num_allow_groups;
    124 	char   *allow_groups[MAX_ALLOW_GROUPS];
    125 	u_int num_deny_groups;
    126 	char   *deny_groups[MAX_DENY_GROUPS];
    127 
    128 	u_int num_subsystems;
    129 	char   *subsystem_name[MAX_SUBSYSTEMS];
    130 	char   *subsystem_command[MAX_SUBSYSTEMS];
    131 
    132 	int	max_startups_begin;
    133 	int	max_startups_rate;
    134 	int	max_startups;
    135 	char   *banner;			/* SSH-2 banner message */
    136 	int	verify_reverse_mapping;	/* cross-check ip and dns */
    137 	int	client_alive_interval;	/*
    138 					 * poke the client this often to
    139 					 * see if it's still there
    140 					 */
    141 	int	client_alive_count_max;	/*
    142 					 * If the client is unresponsive
    143 					 * for this many intervals above,
    144 					 * disconnect the session
    145 					 */
    146 
    147 	char   *authorized_keys_file;	/* File containing public keys */
    148 	char   *authorized_keys_file2;
    149 
    150 	int	pam_authentication_via_kbd_int;
    151 
    152 	int	max_auth_tries;
    153 	int	max_auth_tries_log;
    154 
    155 	int	max_init_auth_tries;	    /* SUNW: /etc/default/login */
    156 	int	max_init_auth_tries_log;    /* SUNW: /etc/default/login */
    157 
    158 	int	lookup_client_hostnames;
    159 	int	use_openssl_engine;
    160 
    161 }       ServerOptions;
    162 
    163 void	 initialize_server_options(ServerOptions *);
    164 void	 read_server_config(ServerOptions *, const char *);
    165 void	 fill_default_server_options(ServerOptions *);
    166 int	 process_server_config_line(ServerOptions *, char *, const char *, int);
    167 
    168 #ifdef __cplusplus
    169 }
    170 #endif
    171 
    172 
    173 #endif	/* _SERVCONF_H */
    174