1 /* $OpenBSD: servconf.h,v 1.71 2004/12/23 23:11:00 djm Exp $ */
5 * Author: Tatu Ylonen <ylo@cs.hut.fi>
6 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
8 * Definitions for server configuration data and for the functions reading it.
10 * As far as I am concerned, the code I have written for this software
11 * can be used freely for any purpose. Any derived versions of this
12 * software must be clearly marked as such, and if the derived work is
13 * incompatible with the protocol description in the RFC file, it must be
14 * called by a name other than "ssh" or "Secure Shell".
22 #define MAX_PORTS 256 /* Max # ports. */
24 #define MAX_ALLOW_USERS 256 /* Max # users on allow list. */
25 #define MAX_DENY_USERS 256 /* Max # users on deny list. */
26 #define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */
27 #define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */
28 #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */
29 #define MAX_HOSTKEYS 256 /* Max # hostkeys. */
30 #define MAX_ACCEPT_ENV 256 /* Max # of env vars. */
32 /* permit_root_login */
33 #define PERMIT_NOT_SET -1
35 #define PERMIT_FORCED_ONLY 1
36 #define PERMIT_NO_PASSWD 2
39 #define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
43 u_int ports_from_cmdline;
44 u_short ports[MAX_PORTS]; /* Port number to listen on. */
45 char *listen_addr; /* Address on which the server listens. */
46 struct addrinfo *listen_addrs; /* Addresses on which the server listens. */
47 int address_family; /* Address family used by the server. */
48 char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */
49 int num_host_key_files; /* Number of files for host keys. */
50 char *pid_file; /* Where to put our pid */
51 int server_key_bits;/* Size of the server key. */
52 int login_grace_time; /* Disconnect if no auth in this time
54 int key_regeneration_time; /* Server key lifetime (seconds). */
55 int permit_root_login; /* PERMIT_*, see above */
56 int ignore_rhosts; /* Ignore .rhosts and .shosts. */
57 int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
58 * for RhostsRsaAuth */
59 int print_motd; /* If true, print /etc/motd. */
60 int print_lastlog; /* If true, print lastlog */
61 int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
62 int x11_display_offset; /* What DISPLAY number to start
64 int x11_use_localhost; /* If true, use localhost for fake X11 server. */
65 char *xauth_location; /* Location of xauth program */
66 int strict_modes; /* If true, require string home dir modes. */
67 int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
68 char *ciphers; /* Supported SSH2 ciphers. */
69 char *macs; /* Supported SSH2 macs. */
70 int protocol; /* Supported protocol versions. */
71 int gateway_ports; /* If true, allow remote connects to forwarded ports. */
72 SyslogFacility log_facility; /* Facility for system logging. */
73 LogLevel log_level; /* Level for system logging. */
74 int rhosts_rsa_authentication; /* If true, permit rhosts RSA
76 int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
77 int hostbased_uses_name_from_packet_only; /* experimental */
78 int rsa_authentication; /* If true, permit RSA authentication. */
79 int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */
80 int kerberos_authentication; /* If true, permit Kerberos
82 int kerberos_or_local_passwd; /* If true, permit kerberos
83 * and any other password
84 * authentication mechanism,
87 int kerberos_ticket_cleanup; /* If true, destroy ticket
89 int kerberos_get_afs_token; /* If true, try to get AFS token if
90 * authenticated with Kerberos. */
91 int gss_authentication; /* If true, permit GSSAPI authentication */
92 int gss_cleanup_creds; /* If true, destroy cred cache on logout */
93 int password_authentication; /* If true, permit password
95 int kbd_interactive_authentication; /* If true, permit */
96 int challenge_response_authentication;
97 int permit_empty_passwd; /* If false, do not permit empty
99 int permit_user_env; /* If true, read ~/.ssh/environment */
100 int use_login; /* If true, login(1) is used */
101 int compression; /* If true, compression is allowed */
102 int allow_tcp_forwarding;
103 u_int num_allow_users;
104 char *allow_users[MAX_ALLOW_USERS];
105 u_int num_deny_users;
106 char *deny_users[MAX_DENY_USERS];
107 u_int num_allow_groups;
108 char *allow_groups[MAX_ALLOW_GROUPS];
109 u_int num_deny_groups;
110 char *deny_groups[MAX_DENY_GROUPS];
112 u_int num_subsystems;
113 char *subsystem_name[MAX_SUBSYSTEMS];
114 char *subsystem_command[MAX_SUBSYSTEMS];
116 u_int num_accept_env;
117 char *accept_env[MAX_ACCEPT_ENV];
119 int max_startups_begin;
120 int max_startups_rate;
123 char *banner; /* SSH-2 banner message */
125 int client_alive_interval; /*
126 * poke the client this often to
127 * see if it's still there
129 int client_alive_count_max; /*
130 * If the client is unresponsive
131 * for this many intervals above,
132 * disconnect the session
135 char *authorized_keys_file; /* File containing public keys */
136 char *authorized_keys_file2;
137 int use_pam; /* Enable auth via PAM */
140 void initialize_server_options(ServerOptions *);
141 void fill_default_server_options(ServerOptions *);
142 int process_server_config_line(ServerOptions *, char *, const char *, int);
143 void load_server_config(const char *, Buffer *);
144 void parse_server_config(ServerOptions *, const char *, Buffer *);
146 #endif /* SERVCONF_H */