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	1	/* $OpenBSD: servconf.h,v 1.87 2009/01/22 10:02:34 djm Exp $ */
	2
	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
	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. */
	27	#define MAX_ACCEPT_ENV 256 /* Max # of env vars. */
	28	#define MAX_MATCH_GROUPS 256 /* Max # of groups for Match. */
	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
	37	#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
	38	#define DEFAULT_SESSIONS_MAX 10 /* Default for MaxSessions */
	39
	40	/* Magic name for internal sftp-server */
	41	#define INTERNAL_SFTP_NAME "internal-sftp"
	42
	43	typedef struct {
	44	u_int num_ports;
	45	u_int ports_from_cmdline;
	46	int 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	int address_family; /* Address family used by the server. */
	50	char host_key_files[MAX_HOSTKEYS]; / Files containing host keys. */
	51	int num_host_key_files; /* Number of files for host keys. */
	52	char pid_file; / Where to put our pid */
	53	int server_key_bits;/* Size of the server key. */
	54	int login_grace_time; /* Disconnect if no auth in this time
	55	* (sec). */
	56	int key_regeneration_time; /* Server key lifetime (seconds). */
	57	int permit_root_login; /* PERMIT_, see above /
	58	int ignore_rhosts; /* Ignore .rhosts and .shosts. */
	59	int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
	60	* for RhostsRsaAuth */
	61	int print_motd; /* If true, print /etc/motd. */
	62	int print_lastlog; /* If true, print lastlog */
	63	int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
	64	int x11_display_offset; /* What DISPLAY number to start
	65	* searching at */
	66	int x11_use_localhost; /* If true, use localhost for fake X11 server. */
	67	char xauth_location; / Location of xauth program */
	68	int strict_modes; /* If true, require string home dir modes. */
	69	int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
	70	char ciphers; / Supported SSH2 ciphers. */
	71	char macs; / Supported SSH2 macs. */
	72	int protocol; /* Supported protocol versions. */
	73	int gateway_ports; /* If true, allow remote connects to forwarded ports. */
	74	SyslogFacility log_facility; /* Facility for system logging. */
	75	LogLevel log_level; /* Level for system logging. */
	76	int rhosts_rsa_authentication; /* If true, permit rhosts RSA
	77	* authentication. */
	78	int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
	79	int hostbased_uses_name_from_packet_only; /* experimental */
	80	int rsa_authentication; /* If true, permit RSA authentication. */
	81	int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */
	82	int kerberos_authentication; /* If true, permit Kerberos
	83	* authentication. */
	84	int kerberos_or_local_passwd; /* If true, permit kerberos
	85	* and any other password
	86	* authentication mechanism,
	87	* such as SecurID or
	88	* /etc/passwd */
	89	int kerberos_ticket_cleanup; /* If true, destroy ticket
	90	* file on logout. */
	91	#ifdef SESSION_HOOKS
	92	int session_hooks_allow; /* If true, permit user hooks */
	93	char* session_hooks_startup_cmd; /* cmd to be executed before */
	94	char* session_hooks_shutdown_cmd; /* cmd to be executed after */
	95	#endif
	96	int kerberos_get_afs_token; /* If true, try to get AFS token if
	97	* authenticated with Kerberos. */
	98	int gsi_allow_limited_proxy; /* If true, accept limited proxies */
	99	int gss_authentication; /* If true, permit GSSAPI authentication */
	100	int gss_deleg_creds; /* If true, store delegated GSSAPI credentials*/
	101	int gss_keyex; /* If true, permit GSSAPI key exchange */
	102	int gss_cleanup_creds; /* If true, destroy cred cache on logout */
	103	char* gss_creds_path; /* If true, destroy cred cache on logout */
	104	int gss_strict_acceptor; /* If true, restrict the GSSAPI acceptor name */
	105	int gss_store_rekey;
	106	int password_authentication; /* If true, permit password
	107	* authentication. */
	108	int kbd_interactive_authentication; /* If true, permit */
	109	int challenge_response_authentication;
	110	int zero_knowledge_password_authentication;
	111	/* If true, permit jpake auth */
	112	int permit_empty_passwd; /* If false, do not permit empty
	113	* passwords. */
	114	int permit_user_env; /* If true, read ~/.ssh/environment */
	115	int use_login; /* If true, login(1) is used */
	116	int compression; /* If true, compression is allowed */
	117	int allow_tcp_forwarding;
	118	int allow_agent_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	char *subsystem_args[MAX_SUBSYSTEMS];
	132
	133	u_int num_accept_env;
	134	char *accept_env[MAX_ACCEPT_ENV];
	135
	136	int max_startups_begin;
	137	int max_startups_rate;
	138	int max_startups;
	139	int max_authtries;
	140	int max_sessions;
	141	char banner; / SSH-2 banner message */
	142	int use_dns;
	143	int client_alive_interval; /*
	144	* poke the client this often to
	145	* see if it's still there
	146	*/
	147	int client_alive_count_max; /*
	148	* If the client is unresponsive
	149	* for this many intervals above,
	150	* disconnect the session
	151	*/
	152
	153	char authorized_keys_file; / File containing public keys */
	154	char *authorized_keys_file2;
	155
	156	char *adm_forced_command;
	157
	158	int use_pam; /* Enable auth via PAM */
	159	int permit_pam_user_change; /* Allow PAM to change user name */
	160	int none_enabled; /* enable NONE cipher switch */
	161	int tcp_rcv_buf_poll; /* poll tcp rcv window in autotuning kernels*/
	162	int hpn_disabled; /* disable hpn functionality. false by default */
	163	int hpn_buffer_size; /* set the hpn buffer size - default 3MB */
	164
	165	int permit_tun;
	166
	167	int num_permitted_opens;
	168
	169	char *chroot_directory;
	170	} ServerOptions;
	171
	172	void initialize_server_options(ServerOptions *);
	173	void fill_default_server_options(ServerOptions *);
	174	int process_server_config_line(ServerOptions , char , const char *, int,
	175	int , const char , const char , const char );
	176	void load_server_config(const char , Buffer );
	177	void parse_server_config(ServerOptions , const char , Buffer *,
	178	const char , const char , const char *);
	179	void parse_server_match_config(ServerOptions , const char , const char *,
	180	const char *);
	181	void copy_set_server_options(ServerOptions , ServerOptions , int);
	182	void dump_config(ServerOptions *);
	183
	184	#endif /* SERVCONF_H */