2 * Author: Tatu Ylonen <ylo@cs.hut.fi>
3 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5 * Definitions for server configuration data and for the functions reading it.
7 * As far as I am concerned, the code I have written for this software
8 * can be used freely for any purpose. Any derived versions of this
9 * software must be clearly marked as such, and if the derived work is
10 * incompatible with the protocol description in the RFC file, it must be
11 * called by a name other than "ssh" or "Secure Shell".
14 /* RCSID("$OpenBSD: servconf.h,v 1.48 2001/08/16 19:18:34 jakob Exp $"); */
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 char *xauth_location; /* Location of xauth program */
59 int strict_modes; /* If true, require string home dir modes. */
60 int keepalives; /* If true, set SO_KEEPALIVE. */
61 char *ciphers; /* Supported SSH2 ciphers. */
62 char *macs; /* Supported SSH2 macs. */
63 int protocol; /* Supported protocol versions. */
64 int gateway_ports; /* If true, allow remote connects to forwarded ports. */
65 SyslogFacility log_facility; /* Facility for system logging. */
66 LogLevel log_level; /* Level for system logging. */
67 int rhosts_authentication; /* If true, permit rhosts
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 #if defined(KRB4) || defined(KRB5)
76 int kerberos_authentication; /* If true, permit Kerberos
78 int kerberos_or_local_passwd; /* If true, permit kerberos
79 * and any other password
80 * authentication mechanism,
83 int kerberos_ticket_cleanup; /* If true, destroy ticket
86 #if defined(AFS) || defined(KRB5)
87 int kerberos_tgt_passing; /* If true, permit Kerberos TGT
91 int afs_token_passing; /* If true, permit AFS token passing. */
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 use_login; /* If true, login(1) is used */
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 int max_startups_begin;
115 int max_startups_rate;
117 char *banner; /* SSH-2 banner message */
118 int reverse_mapping_check; /* cross-check ip and dns */
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 * diconnect the session
129 char *authorized_keys_file; /* File containing public keys */
130 char *authorized_keys_file2;
131 int pam_authentication_via_kbd_int;
135 void initialize_server_options(ServerOptions *);
136 void read_server_config(ServerOptions *, const char *);
137 void fill_default_server_options(ServerOptions *);
139 #endif /* SERVCONF_H */