1 /* $OpenBSD: servconf.h,v 1.59 2002/07/30 17:03:55 markus Exp $ */ 2 3 /* 4 * Author: Tatu Ylonen <ylo@cs.hut.fi> 5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 6 * All rights reserved 7 * Definitions for server configuration data and for the functions reading it. 8 * 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". 14 */ 15 /* 16 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 17 * Use is subject to license terms. 18 */ 19 20 #ifndef _SERVCONF_H 21 #define _SERVCONF_H 22 23 #pragma ident "%Z%%M% %I% %E% SMI" 24 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 #define MAX_PORTS 256 /* Max # ports. */ 30 31 #define MAX_ALLOW_USERS 256 /* Max # users on allow list. */ 32 #define MAX_DENY_USERS 256 /* Max # users on deny list. */ 33 #define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */ 34 #define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */ 35 #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */ 36 #define MAX_HOSTKEYS 256 /* Max # hostkeys. */ 37 38 /* permit_root_login */ 39 #define PERMIT_NOT_SET -1 40 #define PERMIT_NO 0 41 #define PERMIT_FORCED_ONLY 1 42 #define PERMIT_NO_PASSWD 2 43 #define PERMIT_YES 3 44 45 typedef struct { 46 u_int num_ports; 47 u_int ports_from_cmdline; 48 u_short ports[MAX_PORTS]; /* Port number to listen on. */ 49 char *listen_addr; /* Address on which the server listens. */ 50 struct addrinfo *listen_addrs; /* Addresses on which the server listens. */ 51 char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */ 52 int num_host_key_files; /* Number of files for host keys. */ 53 char *pid_file; /* Where to put our pid */ 54 int server_key_bits;/* Size of the server key. */ 55 int login_grace_time; /* Disconnect if no auth in this time 56 * (sec). */ 57 int key_regeneration_time; /* Server key lifetime (seconds). */ 58 int permit_root_login; /* PERMIT_*, see above */ 59 int ignore_rhosts; /* Ignore .rhosts and .shosts. */ 60 int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts 61 * for RhostsRsaAuth */ 62 int print_motd; /* If true, print /etc/motd. */ 63 int print_lastlog; /* If true, print lastlog */ 64 int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */ 65 int x11_display_offset; /* What DISPLAY number to start 66 * searching at */ 67 int x11_use_localhost; /* If true, use localhost for fake X11 server. */ 68 char *xauth_location; /* Location of xauth program */ 69 int strict_modes; /* If true, require string home dir modes. */ 70 int keepalives; /* If true, set SO_KEEPALIVE. */ 71 char *ciphers; /* Supported SSH2 ciphers. */ 72 char *macs; /* Supported SSH2 macs. */ 73 int protocol; /* Supported protocol versions. */ 74 int gateway_ports; /* If true, allow remote connects to forwarded ports. */ 75 SyslogFacility log_facility; /* Facility for system logging. */ 76 LogLevel log_level; /* Level for system logging. */ 77 int rhosts_authentication; /* If true, permit rhosts 78 * authentication. */ 79 int rhosts_rsa_authentication; /* If true, permit rhosts RSA 80 * authentication. */ 81 int hostbased_authentication; /* If true, permit ssh2 hostbased auth */ 82 int hostbased_uses_name_from_packet_only; /* experimental */ 83 int rsa_authentication; /* If true, permit RSA authentication. */ 84 int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ 85 #ifdef GSSAPI 86 int gss_authentication; 87 int gss_keyex; 88 int gss_store_creds; 89 int gss_use_session_ccache; /* If true, delegated credentials are 90 * stored in a session specific cache */ 91 int gss_cleanup_creds; /* If true, destroy cred cache on logout */ 92 #endif /* GSSAPI */ 93 #if defined(KRB4) || defined(KRB5) 94 int kerberos_authentication; /* If true, permit Kerberos 95 * authentication. */ 96 int kerberos_or_local_passwd; /* If true, permit kerberos 97 * and any other password 98 * authentication mechanism, 99 * such as SecurID or 100 * /etc/passwd */ 101 int kerberos_ticket_cleanup; /* If true, destroy ticket 102 * file on logout. */ 103 #endif 104 #if defined(AFS) || defined(KRB5) 105 int kerberos_tgt_passing; /* If true, permit Kerberos TGT 106 * passing. */ 107 #endif 108 #ifdef AFS 109 int afs_token_passing; /* If true, permit AFS token passing. */ 110 #endif 111 int password_authentication; /* If true, permit password 112 * authentication. */ 113 int kbd_interactive_authentication; /* If true, permit */ 114 int challenge_response_authentication; 115 int permit_empty_passwd; /* If false, do not permit empty 116 * passwords. */ 117 int permit_user_env; /* If true, read ~/.ssh/environment */ 118 int use_login; /* If true, login(1) is used */ 119 int compression; /* If true, compression is allowed */ 120 int allow_tcp_forwarding; 121 u_int num_allow_users; 122 char *allow_users[MAX_ALLOW_USERS]; 123 u_int num_deny_users; 124 char *deny_users[MAX_DENY_USERS]; 125 u_int num_allow_groups; 126 char *allow_groups[MAX_ALLOW_GROUPS]; 127 u_int num_deny_groups; 128 char *deny_groups[MAX_DENY_GROUPS]; 129 130 u_int num_subsystems; 131 char *subsystem_name[MAX_SUBSYSTEMS]; 132 char *subsystem_command[MAX_SUBSYSTEMS]; 133 134 int max_startups_begin; 135 int max_startups_rate; 136 int max_startups; 137 char *banner; /* SSH-2 banner message */ 138 int verify_reverse_mapping; /* cross-check ip and dns */ 139 int client_alive_interval; /* 140 * poke the client this often to 141 * see if it's still there 142 */ 143 int client_alive_count_max; /* 144 * If the client is unresponsive 145 * for this many intervals above, 146 * disconnect the session 147 */ 148 149 char *authorized_keys_file; /* File containing public keys */ 150 char *authorized_keys_file2; 151 152 int pam_authentication_via_kbd_int; 153 154 int max_auth_tries; 155 int max_auth_tries_log; 156 157 int max_init_auth_tries; /* SUNW: /etc/default/login */ 158 int max_init_auth_tries_log; /* SUNW: /etc/default/login */ 159 160 int lookup_client_hostnames; 161 162 } ServerOptions; 163 164 void initialize_server_options(ServerOptions *); 165 void read_server_config(ServerOptions *, const char *); 166 void fill_default_server_options(ServerOptions *); 167 int process_server_config_line(ServerOptions *, char *, const char *, int); 168 169 #ifdef __cplusplus 170 } 171 #endif 172 173 174 #endif /* _SERVCONF_H */ 175