1 /* $OpenBSD: servconf.h,v 1.68 2004/04/27 09:46:37 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".
19 #define MAX_PORTS 256 /* Max # ports. */
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. */
29 /* permit_root_login */
30 #define PERMIT_NOT_SET -1
32 #define PERMIT_FORCED_ONLY 1
33 #define PERMIT_NO_PASSWD 2
39 u_int ports_from_cmdline;
40 u_short ports[MAX_PORTS]; /* Port number to listen on. */
41 char *listen_addr; /* Address on which the server listens. */
42 struct addrinfo *listen_addrs; /* Addresses on which the server listens. */
43 char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */
44 int num_host_key_files; /* Number of files for host keys. */
45 char *pid_file; /* Where to put our pid */
46 int server_key_bits;/* Size of the server key. */
47 int login_grace_time; /* Disconnect if no auth in this time
49 int key_regeneration_time; /* Server key lifetime (seconds). */
50 int permit_root_login; /* PERMIT_*, see above */
51 int ignore_rhosts; /* Ignore .rhosts and .shosts. */
52 int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
53 * for RhostsRsaAuth */
54 int print_motd; /* If true, print /etc/motd. */
55 int print_lastlog; /* If true, print lastlog */
56 int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
57 int x11_display_offset; /* What DISPLAY number to start
59 int x11_use_localhost; /* If true, use localhost for fake X11 server. */
60 char *xauth_location; /* Location of xauth program */
61 int strict_modes; /* If true, require string home dir modes. */
62 int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
63 char *ciphers; /* Supported SSH2 ciphers. */
64 char *macs; /* Supported SSH2 macs. */
65 int protocol; /* Supported protocol versions. */
66 int gateway_ports; /* If true, allow remote connects to forwarded ports. */
67 SyslogFacility log_facility; /* Facility for system logging. */
68 LogLevel log_level; /* Level for system logging. */
69 int rhosts_rsa_authentication; /* If true, permit rhosts RSA
71 int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
72 int hostbased_uses_name_from_packet_only; /* experimental */
73 int rsa_authentication; /* If true, permit RSA authentication. */
74 int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */
75 int kerberos_authentication; /* If true, permit Kerberos
77 int kerberos_or_local_passwd; /* If true, permit kerberos
78 * and any other password
79 * authentication mechanism,
82 int kerberos_ticket_cleanup; /* If true, destroy ticket
84 int kerberos_get_afs_token; /* If true, try to get AFS token if
85 * authenticated with Kerberos. */
86 int gss_authentication; /* If true, permit GSSAPI authentication */
87 int gss_cleanup_creds; /* If true, destroy cred cache on logout */
88 int password_authentication; /* If true, permit password
90 int kbd_interactive_authentication; /* If true, permit */
91 int challenge_response_authentication;
92 int permit_empty_passwd; /* If false, do not permit empty
94 int permit_user_env; /* If true, read ~/.ssh/environment */
95 int use_login; /* If true, login(1) is used */
96 int compression; /* If true, compression is allowed */
97 int allow_tcp_forwarding;
98 u_int num_allow_users;
99 char *allow_users[MAX_ALLOW_USERS];
100 u_int num_deny_users;
101 char *deny_users[MAX_DENY_USERS];
102 u_int num_allow_groups;
103 char *allow_groups[MAX_ALLOW_GROUPS];
104 u_int num_deny_groups;
105 char *deny_groups[MAX_DENY_GROUPS];
107 u_int num_subsystems;
108 char *subsystem_name[MAX_SUBSYSTEMS];
109 char *subsystem_command[MAX_SUBSYSTEMS];
111 u_int num_accept_env;
112 char *accept_env[MAX_ACCEPT_ENV];
114 int max_startups_begin;
115 int max_startups_rate;
117 char *banner; /* SSH-2 banner message */
119 int client_alive_interval; /*
120 * poke the client this often to
121 * see if it's still there
123 int client_alive_count_max; /*
124 * If the client is unresponsive
125 * for this many intervals above,
126 * disconnect the session
129 char *authorized_keys_file; /* File containing public keys */
130 char *authorized_keys_file2;
131 int use_pam; /* Enable auth via PAM */
134 void initialize_server_options(ServerOptions *);
135 void read_server_config(ServerOptions *, const char *);
136 void fill_default_server_options(ServerOptions *);
137 int process_server_config_line(ServerOptions *, char *, const char *, int);
140 #endif /* SERVCONF_H */