1 /* $OpenBSD: servconf.h,v 1.63 2003/08/13 08:46:30 markus 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. */
28 /* permit_root_login */
29 #define PERMIT_NOT_SET -1
31 #define PERMIT_FORCED_ONLY 1
32 #define PERMIT_NO_PASSWD 2
38 u_int ports_from_cmdline;
39 u_short ports[MAX_PORTS]; /* Port number to listen on. */
40 char *listen_addr; /* Address on which the server listens. */
41 struct addrinfo *listen_addrs; /* Addresses on which the server listens. */
42 char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */
43 int num_host_key_files; /* Number of files for host keys. */
44 char *pid_file; /* Where to put our pid */
45 int server_key_bits;/* Size of the server key. */
46 int login_grace_time; /* Disconnect if no auth in this time
48 int key_regeneration_time; /* Server key lifetime (seconds). */
49 int permit_root_login; /* PERMIT_*, see above */
50 int ignore_rhosts; /* Ignore .rhosts and .shosts. */
51 int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
52 * for RhostsRsaAuth */
53 int print_motd; /* If true, print /etc/motd. */
54 int print_lastlog; /* If true, print lastlog */
55 int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
56 int x11_display_offset; /* What DISPLAY number to start
58 int x11_use_localhost; /* If true, use localhost for fake X11 server. */
59 char *xauth_location; /* Location of xauth program */
60 int strict_modes; /* If true, require string home dir modes. */
61 int keepalives; /* If true, set SO_KEEPALIVE. */
62 char *ciphers; /* Supported SSH2 ciphers. */
63 char *macs; /* Supported SSH2 macs. */
64 int protocol; /* Supported protocol versions. */
65 int gateway_ports; /* If true, allow remote connects to forwarded ports. */
66 SyslogFacility log_facility; /* Facility for system logging. */
67 LogLevel log_level; /* Level for system logging. */
68 int rhosts_rsa_authentication; /* If true, permit rhosts RSA
70 int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
71 int hostbased_uses_name_from_packet_only; /* experimental */
72 int rsa_authentication; /* If true, permit RSA authentication. */
73 int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */
74 int kerberos_authentication; /* If true, permit Kerberos
76 int kerberos_or_local_passwd; /* If true, permit kerberos
77 * and any other password
78 * authentication mechanism,
81 int kerberos_ticket_cleanup; /* If true, destroy ticket
83 int kerberos_tgt_passing; /* If true, permit Kerberos TGT
85 int password_authentication; /* If true, permit password
87 int kbd_interactive_authentication; /* If true, permit */
88 int challenge_response_authentication;
89 int permit_empty_passwd; /* If false, do not permit empty
91 int permit_user_env; /* If true, read ~/.ssh/environment */
92 int use_login; /* If true, login(1) is used */
93 int compression; /* If true, compression is allowed */
94 int allow_tcp_forwarding;
95 u_int num_allow_users;
96 char *allow_users[MAX_ALLOW_USERS];
98 char *deny_users[MAX_DENY_USERS];
99 u_int num_allow_groups;
100 char *allow_groups[MAX_ALLOW_GROUPS];
101 u_int num_deny_groups;
102 char *deny_groups[MAX_DENY_GROUPS];
104 u_int num_subsystems;
105 char *subsystem_name[MAX_SUBSYSTEMS];
106 char *subsystem_command[MAX_SUBSYSTEMS];
108 int max_startups_begin;
109 int max_startups_rate;
111 char *banner; /* SSH-2 banner message */
113 int client_alive_interval; /*
114 * poke the client this often to
115 * see if it's still there
117 int client_alive_count_max; /*
118 * If the client is unresponsive
119 * for this many intervals above,
120 * disconnect the session
123 char *authorized_keys_file; /* File containing public keys */
124 char *authorized_keys_file2;
125 int use_pam; /* Enable auth via PAM */
128 void initialize_server_options(ServerOptions *);
129 void read_server_config(ServerOptions *, const char *);
130 void fill_default_server_options(ServerOptions *);
131 int process_server_config_line(ServerOptions *, char *, const char *, int);
134 #endif /* SERVCONF_H */