1 /* $OpenBSD: servconf.h,v 1.70 2004/06/24 19:30:54 djm Exp $ */
4 * Author: Tatu Ylonen <ylo@cs.hut.fi>
5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
7 * Definitions for server configuration data and for the functions reading it.
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".
21 #define MAX_PORTS 256 /* Max # ports. */
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. */
27 #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */
28 #define MAX_HOSTKEYS 256 /* Max # hostkeys. */
29 #define MAX_ACCEPT_ENV 256 /* Max # of env vars. */
31 /* permit_root_login */
32 #define PERMIT_NOT_SET -1
34 #define PERMIT_FORCED_ONLY 1
35 #define PERMIT_NO_PASSWD 2
38 #define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
42 u_int ports_from_cmdline;
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. */
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
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
62 int x11_use_localhost; /* If true, use localhost for fake X11 server. */
63 char *xauth_location; /* Location of xauth program */
64 int strict_modes; /* If true, require string home dir modes. */
65 int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
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. */
72 int rhosts_rsa_authentication; /* If true, permit rhosts RSA
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. */
78 int kerberos_authentication; /* If true, permit Kerberos
80 int kerberos_or_local_passwd; /* If true, permit kerberos
81 * and any other password
82 * authentication mechanism,
85 int kerberos_ticket_cleanup; /* If true, destroy ticket
87 int kerberos_get_afs_token; /* If true, try to get AFS token if
88 * authenticated with Kerberos. */
89 int gss_authentication; /* If true, permit GSSAPI authentication */
90 int gss_cleanup_creds; /* If true, destroy cred cache on logout */
91 int password_authentication; /* If true, permit password
93 int kbd_interactive_authentication; /* If true, permit */
94 int challenge_response_authentication;
95 int permit_empty_passwd; /* If false, do not permit empty
97 int permit_user_env; /* If true, read ~/.ssh/environment */
98 int use_login; /* If true, login(1) is used */
99 int compression; /* If true, compression is allowed */
100 int allow_tcp_forwarding;
101 u_int num_allow_users;
102 char *allow_users[MAX_ALLOW_USERS];
103 u_int num_deny_users;
104 char *deny_users[MAX_DENY_USERS];
105 u_int num_allow_groups;
106 char *allow_groups[MAX_ALLOW_GROUPS];
107 u_int num_deny_groups;
108 char *deny_groups[MAX_DENY_GROUPS];
110 u_int num_subsystems;
111 char *subsystem_name[MAX_SUBSYSTEMS];
112 char *subsystem_command[MAX_SUBSYSTEMS];
114 u_int num_accept_env;
115 char *accept_env[MAX_ACCEPT_ENV];
117 int max_startups_begin;
118 int max_startups_rate;
121 char *banner; /* SSH-2 banner message */
123 int client_alive_interval; /*
124 * poke the client this often to
125 * see if it's still there
127 int client_alive_count_max; /*
128 * If the client is unresponsive
129 * for this many intervals above,
130 * disconnect the session
133 char *authorized_keys_file; /* File containing public keys */
134 char *authorized_keys_file2;
135 int use_pam; /* Enable auth via PAM */
138 void initialize_server_options(ServerOptions *);
139 void fill_default_server_options(ServerOptions *);
140 int process_server_config_line(ServerOptions *, char *, const char *, int);
141 void load_server_config(const char *, Buffer *);
142 void parse_server_config(ServerOptions *, const char *, Buffer *);
144 #endif /* SERVCONF_H */