/* $OpenBSD: servconf.h,v 1.77 2006/07/21 12:43:36 dtucker Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , Espoo, Finland * All rights reserved * Definitions for server configuration data and for the functions reading it. * * As far as I am concerned, the code I have written for this software * can be used freely for any purpose. Any derived versions of this * software must be clearly marked as such, and if the derived work is * incompatible with the protocol description in the RFC file, it must be * called by a name other than "ssh" or "Secure Shell". */ #ifndef SERVCONF_H #define SERVCONF_H #include "buffer.h" #define MAX_PORTS 256 /* Max # ports. */ #define MAX_ALLOW_USERS 256 /* Max # users on allow list. */ #define MAX_DENY_USERS 256 /* Max # users on deny list. */ #define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */ #define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */ #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */ #define MAX_HOSTKEYS 256 /* Max # hostkeys. */ #define MAX_ACCEPT_ENV 256 /* Max # of env vars. */ /* permit_root_login */ #define PERMIT_NOT_SET -1 #define PERMIT_NO 0 #define PERMIT_FORCED_ONLY 1 #define PERMIT_NO_PASSWD 2 #define PERMIT_YES 3 #define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */ typedef struct { u_int num_ports; u_int ports_from_cmdline; u_short ports[MAX_PORTS]; /* Port number to listen on. */ char *listen_addr; /* Address on which the server listens. */ struct addrinfo *listen_addrs; /* Addresses on which the server listens. */ int address_family; /* Address family used by the server. */ char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */ int num_host_key_files; /* Number of files for host keys. */ char *pid_file; /* Where to put our pid */ int server_key_bits;/* Size of the server key. */ int login_grace_time; /* Disconnect if no auth in this time * (sec). */ int key_regeneration_time; /* Server key lifetime (seconds). */ int permit_root_login; /* PERMIT_*, see above */ int ignore_rhosts; /* Ignore .rhosts and .shosts. */ int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts * for RhostsRsaAuth */ int print_motd; /* If true, print /etc/motd. */ int print_lastlog; /* If true, print lastlog */ int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */ int x11_display_offset; /* What DISPLAY number to start * searching at */ int x11_use_localhost; /* If true, use localhost for fake X11 server. */ char *xauth_location; /* Location of xauth program */ int strict_modes; /* If true, require string home dir modes. */ int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */ char *ciphers; /* Supported SSH2 ciphers. */ char *macs; /* Supported SSH2 macs. */ int protocol; /* Supported protocol versions. */ int gateway_ports; /* If true, allow remote connects to forwarded ports. */ SyslogFacility log_facility; /* Facility for system logging. */ LogLevel log_level; /* Level for system logging. */ int rhosts_rsa_authentication; /* If true, permit rhosts RSA * authentication. */ int hostbased_authentication; /* If true, permit ssh2 hostbased auth */ int hostbased_uses_name_from_packet_only; /* experimental */ int rsa_authentication; /* If true, permit RSA authentication. */ int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ int kerberos_authentication; /* If true, permit Kerberos * authentication. */ int kerberos_or_local_passwd; /* If true, permit kerberos * and any other password * authentication mechanism, * such as SecurID or * /etc/passwd */ int kerberos_ticket_cleanup; /* If true, destroy ticket * file on logout. */ int kerberos_get_afs_token; /* If true, try to get AFS token if * authenticated with Kerberos. */ int gss_authentication; /* If true, permit GSSAPI authentication */ int gss_cleanup_creds; /* If true, destroy cred cache on logout */ int password_authentication; /* If true, permit password * authentication. */ int kbd_interactive_authentication; /* If true, permit */ int challenge_response_authentication; int permit_empty_passwd; /* If false, do not permit empty * passwords. */ int permit_user_env; /* If true, read ~/.ssh/environment */ int use_login; /* If true, login(1) is used */ int compression; /* If true, compression is allowed */ int allow_tcp_forwarding; u_int num_allow_users; char *allow_users[MAX_ALLOW_USERS]; u_int num_deny_users; char *deny_users[MAX_DENY_USERS]; u_int num_allow_groups; char *allow_groups[MAX_ALLOW_GROUPS]; u_int num_deny_groups; char *deny_groups[MAX_DENY_GROUPS]; u_int num_subsystems; char *subsystem_name[MAX_SUBSYSTEMS]; char *subsystem_command[MAX_SUBSYSTEMS]; char *subsystem_args[MAX_SUBSYSTEMS]; u_int num_accept_env; char *accept_env[MAX_ACCEPT_ENV]; int max_startups_begin; int max_startups_rate; int max_startups; int max_authtries; char *banner; /* SSH-2 banner message */ int use_dns; int client_alive_interval; /* * poke the client this often to * see if it's still there */ int client_alive_count_max; /* * If the client is unresponsive * for this many intervals above, * disconnect the session */ char *authorized_keys_file; /* File containing public keys */ char *authorized_keys_file2; char *adm_forced_command; int permit_tun; int num_permitted_opens; } ServerOptions; void initialize_server_options(ServerOptions *); void fill_default_server_options(ServerOptions *); int process_server_config_line(ServerOptions *, char *, const char *, int, int *, const char *, const char *, const char *); void load_server_config(const char *, Buffer *); void parse_server_config(ServerOptions *, const char *, Buffer *, const char *, const char *, const char *); void parse_server_match_config(ServerOptions *, const char *, const char *, const char *); void copy_set_server_options(ServerOptions *, ServerOptions *); #endif /* SERVCONF_H */