1 /* $OpenBSD: servconf.h,v 1.67 2003/12/23 16:12:10 jakob 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 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 70 * authentication. */ 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 76 * authentication. */ 77 int kerberos_or_local_passwd; /* If true, permit kerberos 78 * and any other password 79 * authentication mechanism, 80 * such as SecurID or 81 * /etc/passwd */ 82 int kerberos_ticket_cleanup; /* If true, destroy ticket 83 * file on logout. */ 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 89 * authentication. */ 90 int kbd_interactive_authentication; /* If true, permit */ 91 int challenge_response_authentication; 92 int permit_empty_passwd; /* If false, do not permit empty 93 * passwords. */ 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]; 106 107 u_int num_subsystems; 108 char *subsystem_name[MAX_SUBSYSTEMS]; 109 char *subsystem_command[MAX_SUBSYSTEMS]; 110 111 int max_startups_begin; 112 int max_startups_rate; 113 int max_startups; 114 char *banner; /* SSH-2 banner message */ 115 int use_dns; 116 int client_alive_interval; /* 117 * poke the client this often to 118 * see if it's still there 119 */ 120 int client_alive_count_max; /* 121 * If the client is unresponsive 122 * for this many intervals above, 123 * disconnect the session 124 */ 125 126 char *authorized_keys_file; /* File containing public keys */ 127 char *authorized_keys_file2; 128 int use_pam; /* Enable auth via PAM */ 129 } ServerOptions; 130 131 void initialize_server_options(ServerOptions *); 132 void read_server_config(ServerOptions *, const char *); 133 void fill_default_server_options(ServerOptions *); 134 int process_server_config_line(ServerOptions *, char *, const char *, int); 135 136 137 #endif /* SERVCONF_H */ 138