servconf.h revision 204917
186659Sjoe/* $OpenBSD: servconf.h,v 1.92 2010/03/04 10:36:03 djm Exp $ */ 286659Sjoe 386659Sjoe/* 486659Sjoe * Author: Tatu Ylonen <ylo@cs.hut.fi> 586659Sjoe * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 686659Sjoe * All rights reserved 786659Sjoe * Definitions for server configuration data and for the functions reading it. 886659Sjoe * 986659Sjoe * As far as I am concerned, the code I have written for this software 1086659Sjoe * can be used freely for any purpose. Any derived versions of this 1186659Sjoe * software must be clearly marked as such, and if the derived work is 1286659Sjoe * incompatible with the protocol description in the RFC file, it must be 1386659Sjoe * called by a name other than "ssh" or "Secure Shell". 1486659Sjoe */ 1586659Sjoe 1686659Sjoe#ifndef SERVCONF_H 1786659Sjoe#define SERVCONF_H 1886659Sjoe 1986659Sjoe#define MAX_PORTS 256 /* Max # ports. */ 2086659Sjoe 2186659Sjoe#define MAX_ALLOW_USERS 256 /* Max # users on allow list. */ 2286659Sjoe#define MAX_DENY_USERS 256 /* Max # users on deny list. */ 2386659Sjoe#define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */ 2486659Sjoe#define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */ 2586659Sjoe#define MAX_SUBSYSTEMS 256 /* Max # subsystems. */ 2686659Sjoe#define MAX_HOSTKEYS 256 /* Max # hostkeys. */ 2786659Sjoe#define MAX_HOSTCERTS 256 /* Max # host certificates. */ 2886659Sjoe#define MAX_ACCEPT_ENV 256 /* Max # of env vars. */ 2986659Sjoe#define MAX_MATCH_GROUPS 256 /* Max # of groups for Match. */ 3086659Sjoe 3186659Sjoe/* permit_root_login */ 32266559Sgavin#define PERMIT_NOT_SET -1 3386659Sjoe#define PERMIT_NO 0 3486659Sjoe#define PERMIT_FORCED_ONLY 1 3586659Sjoe#define PERMIT_NO_PASSWD 2 3686659Sjoe#define PERMIT_YES 3 3786659Sjoe 3886659Sjoe#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */ 39238705Swblock#define DEFAULT_SESSIONS_MAX 10 /* Default for MaxSessions */ 40238705Swblock 41238705Swblock/* Magic name for internal sftp-server */ 42238705Swblock#define INTERNAL_SFTP_NAME "internal-sftp" 4386659Sjoe 4486659Sjoetypedef struct { 4586659Sjoe u_int num_ports; 4686659Sjoe u_int ports_from_cmdline; 4786775Sru int ports[MAX_PORTS]; /* Port number to listen on. */ 4886775Sru char *listen_addr; /* Address on which the server listens. */ 4986659Sjoe struct addrinfo *listen_addrs; /* Addresses on which the server listens. */ 5086659Sjoe int address_family; /* Address family used by the server. */ 5186659Sjoe char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */ 5286775Sru int num_host_key_files; /* Number of files for host keys. */ 5386775Sru char *host_cert_files[MAX_HOSTCERTS]; /* Files containing host certs. */ 5486659Sjoe int num_host_cert_files; /* Number of files for host certs. */ 5586775Sru char *pid_file; /* Where to put our pid */ 5686775Sru int server_key_bits;/* Size of the server key. */ 5786775Sru int login_grace_time; /* Disconnect if no auth in this time 5886775Sru * (sec). */ 59238705Swblock int key_regeneration_time; /* Server key lifetime (seconds). */ 60238705Swblock int permit_root_login; /* PERMIT_*, see above */ 6186659Sjoe int ignore_rhosts; /* Ignore .rhosts and .shosts. */ 62238705Swblock int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts 6386659Sjoe * for RhostsRsaAuth */ 6486659Sjoe int print_motd; /* If true, print /etc/motd. */ 65238705Swblock int print_lastlog; /* If true, print lastlog */ 6686659Sjoe int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */ 67238705Swblock int x11_display_offset; /* What DISPLAY number to start 6886659Sjoe * searching at */ 6986659Sjoe int x11_use_localhost; /* If true, use localhost for fake X11 server. */ 7086659Sjoe char *xauth_location; /* Location of xauth program */ 7186775Sru int strict_modes; /* If true, require string home dir modes. */ 72238705Swblock int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */ 73238705Swblock char *ciphers; /* Supported SSH2 ciphers. */ 74238705Swblock char *macs; /* Supported SSH2 macs. */ 7586659Sjoe int protocol; /* Supported protocol versions. */ 7686659Sjoe int gateway_ports; /* If true, allow remote connects to forwarded ports. */ 7786659Sjoe SyslogFacility log_facility; /* Facility for system logging. */ 7886659Sjoe LogLevel log_level; /* Level for system logging. */ 7986659Sjoe int rhosts_rsa_authentication; /* If true, permit rhosts RSA 8086775Sru * authentication. */ 8186775Sru int hostbased_authentication; /* If true, permit ssh2 hostbased auth */ 8286659Sjoe int hostbased_uses_name_from_packet_only; /* experimental */ 8386659Sjoe int rsa_authentication; /* If true, permit RSA authentication. */ 8486659Sjoe int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ 8586659Sjoe int kerberos_authentication; /* If true, permit Kerberos 8686775Sru * authentication. */ 8786775Sru int kerberos_or_local_passwd; /* If true, permit kerberos 8886775Sru * and any other password 8986659Sjoe * authentication mechanism, 9086659Sjoe * such as SecurID or 9186659Sjoe * /etc/passwd */ 9286659Sjoe int kerberos_ticket_cleanup; /* If true, destroy ticket 9386659Sjoe * file on logout. */ 9486659Sjoe int kerberos_get_afs_token; /* If true, try to get AFS token if 9586775Sru * authenticated with Kerberos. */ 9686775Sru int gss_authentication; /* If true, permit GSSAPI authentication */ 9786659Sjoe int gss_cleanup_creds; /* If true, destroy cred cache on logout */ 9886659Sjoe int password_authentication; /* If true, permit password 9986659Sjoe * authentication. */ 10086659Sjoe int kbd_interactive_authentication; /* If true, permit */ 10186775Sru int challenge_response_authentication; 10286659Sjoe int zero_knowledge_password_authentication; 103111680Sjhay /* If true, permit jpake auth */ 104111680Sjhay int permit_empty_passwd; /* If false, do not permit empty 105111680Sjhay * passwords. */ 10686659Sjoe int permit_user_env; /* If true, read ~/.ssh/environment */ 107111680Sjhay int use_login; /* If true, login(1) is used */ 108111680Sjhay int compression; /* If true, compression is allowed */ 10986775Sru int allow_tcp_forwarding; 11086775Sru int allow_agent_forwarding; 11186659Sjoe u_int num_allow_users; 11286659Sjoe char *allow_users[MAX_ALLOW_USERS]; 11386659Sjoe u_int num_deny_users; 11486659Sjoe char *deny_users[MAX_DENY_USERS]; 11586659Sjoe u_int num_allow_groups; 11686775Sru char *allow_groups[MAX_ALLOW_GROUPS]; 11786775Sru u_int num_deny_groups; 11886775Sru char *deny_groups[MAX_DENY_GROUPS]; 11986775Sru 12086659Sjoe u_int num_subsystems; 12186659Sjoe char *subsystem_name[MAX_SUBSYSTEMS]; 12286775Sru char *subsystem_command[MAX_SUBSYSTEMS]; 123238705Swblock char *subsystem_args[MAX_SUBSYSTEMS]; 124238705Swblock 12586775Sru u_int num_accept_env; 12686659Sjoe char *accept_env[MAX_ACCEPT_ENV]; 12786659Sjoe 12886659Sjoe int max_startups_begin; 12986659Sjoe int max_startups_rate; 13086659Sjoe int max_startups; 13186659Sjoe int max_authtries; 13286775Sru int max_sessions; 13386775Sru char *banner; /* SSH-2 banner message */ 13486659Sjoe int use_dns; 13586775Sru int client_alive_interval; /* 13686659Sjoe * poke the client this often to 13786775Sru * see if it's still there 13886659Sjoe */ 13986659Sjoe int client_alive_count_max; /* 14086775Sru * If the client is unresponsive 14186659Sjoe * for this many intervals above, 14286659Sjoe * disconnect the session 14386659Sjoe */ 144120402Sjb 14586659Sjoe char *authorized_keys_file; /* File containing public keys */ 14686659Sjoe char *authorized_keys_file2; 14786659Sjoe 148120398Sjb char *adm_forced_command; 149120398Sjb 150120398Sjb int use_pam; /* Enable auth via PAM */ 15186659Sjoe 15286659Sjoe int permit_tun; 15386775Sru 15486659Sjoe int num_permitted_opens; 15586659Sjoe 15686659Sjoe char *chroot_directory; 157120402Sjb char *revoked_keys_file; 15886659Sjoe char *trusted_user_ca_keys; 15986775Sru} ServerOptions; 16086659Sjoe 16186659Sjoevoid initialize_server_options(ServerOptions *); 16286775Sruvoid fill_default_server_options(ServerOptions *); 16386659Sjoeint process_server_config_line(ServerOptions *, char *, const char *, int, 164120402Sjb int *, const char *, const char *, const char *); 16586659Sjoevoid load_server_config(const char *, Buffer *); 16686775Sruvoid parse_server_config(ServerOptions *, const char *, Buffer *, 16786659Sjoe const char *, const char *, const char *); 16886775Sruvoid parse_server_match_config(ServerOptions *, const char *, const char *, 16986659Sjoe const char *); 170238705Swblockvoid copy_set_server_options(ServerOptions *, ServerOptions *, int); 17186659Sjoevoid dump_config(ServerOptions *); 17286659Sjoechar *derelativise_path(const char *); 17386659Sjoe 174120398Sjb#endif /* SERVCONF_H */ 175120398Sjb