1 /* $OpenBSD: servconf.h,v 1.59 2002/07/30 17:03:55 markus Exp $ */ 2 /* $FreeBSD$ */ 3 4 /* 5 * Author: Tatu Ylonen <ylo@cs.hut.fi> 6 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 7 * All rights reserved 8 * Definitions for server configuration data and for the functions reading it. 9 * 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". 15 */ 16 17 #ifndef SERVCONF_H 18 #define SERVCONF_H 19 20 #define MAX_PORTS 256 /* Max # ports. */ 21 22 #define MAX_ALLOW_USERS 256 /* Max # users on allow list. */ 23 #define MAX_DENY_USERS 256 /* Max # users on deny list. */ 24 #define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */ 25 #define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */ 26 #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */ 27 #define MAX_HOSTKEYS 256 /* Max # hostkeys. */ 28 29 /* permit_root_login */ 30 #define PERMIT_NOT_SET -1 31 #define PERMIT_NO 0 32 #define PERMIT_FORCED_ONLY 1 33 #define PERMIT_NO_PASSWD 2 34 #define PERMIT_YES 3 35 36 37 typedef struct { 38 u_int num_ports; 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 48 * (sec). */ 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 58 * searching at */ 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 keepalives; /* 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_authentication; /* If true, permit rhosts 70 * authentication. */ 71 int rhosts_rsa_authentication; /* If true, permit rhosts RSA 72 * authentication. */ 73 int hostbased_authentication; /* If true, permit ssh2 hostbased auth */ 74 int hostbased_uses_name_from_packet_only; /* experimental */ 75 int rsa_authentication; /* If true, permit RSA authentication. */ 76 int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ 77 #if defined(KRB4) || defined(KRB5) 78 int kerberos_authentication; /* If true, permit Kerberos 79 * authentication. */ 80 int kerberos_or_local_passwd; /* If true, permit kerberos 81 * and any other password 82 * authentication mechanism, 83 * such as SecurID or 84 * /etc/passwd */ 85 int kerberos_ticket_cleanup; /* If true, destroy ticket 86 * file on logout. */ 87 #endif 88 #if defined(AFS) || defined(KRB5) 89 int kerberos_tgt_passing; /* If true, permit Kerberos TGT 90 * passing. */ 91 #endif 92 #ifdef AFS 93 int afs_token_passing; /* If true, permit AFS token passing. */ 94 #endif 95 int password_authentication; /* If true, permit password 96 * authentication. */ 97 int kbd_interactive_authentication; /* If true, permit */ 98 int challenge_response_authentication; 99 int permit_empty_passwd; /* If false, do not permit empty 100 * passwords. */ 101 int permit_user_env; /* If true, read ~/.ssh/environment */ 102 int use_login; /* If true, login(1) is used */ 103 int compression; /* If true, compression is allowed */ 104 int allow_tcp_forwarding; 105 u_int num_allow_users; 106 char *allow_users[MAX_ALLOW_USERS]; 107 u_int num_deny_users; 108 char *deny_users[MAX_DENY_USERS]; 109 u_int num_allow_groups; 110 char *allow_groups[MAX_ALLOW_GROUPS]; 111 u_int num_deny_groups; 112 char *deny_groups[MAX_DENY_GROUPS]; 113 114 u_int num_subsystems; 115 char *subsystem_name[MAX_SUBSYSTEMS]; 116 char *subsystem_command[MAX_SUBSYSTEMS]; 117 118 int max_startups_begin; 119 int max_startups_rate; 120 int max_startups; 121 char *banner; /* SSH-2 banner message */ 122 int verify_reverse_mapping; /* cross-check ip and dns */ 123 int client_alive_interval; /* 124 * poke the client this often to 125 * see if it's still there 126 */ 127 int client_alive_count_max; /* 128 * If the client is unresponsive 129 * for this many intervals above, 130 * disconnect the session 131 */ 132 133 char *authorized_keys_file; /* File containing public keys */ 134 char *authorized_keys_file2; 135 int pam_authentication_via_kbd_int; 136 } ServerOptions; 137 138 void initialize_server_options(ServerOptions *); 139 void read_server_config(ServerOptions *, const char *); 140 void fill_default_server_options(ServerOptions *); 141 int process_server_config_line(ServerOptions *, char *, const char *, int); 142 143 144 #endif /* SERVCONF_H */ 145