servconf.h revision 1.3
1/* $NetBSD: servconf.h,v 1.3 2010/11/21 18:29:49 adam Exp $ */ 2/* $OpenBSD: servconf.h,v 1.93 2010/05/07 11:30:30 djm Exp $ */ 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#define MAX_HOSTCERTS 256 /* Max # host certificates. */ 29#define MAX_ACCEPT_ENV 256 /* Max # of env vars. */ 30#define MAX_MATCH_GROUPS 256 /* Max # of groups for Match. */ 31 32/* permit_root_login */ 33#define PERMIT_NOT_SET -1 34#define PERMIT_NO 0 35#define PERMIT_FORCED_ONLY 1 36#define PERMIT_NO_PASSWD 2 37#define PERMIT_YES 3 38 39#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */ 40#define DEFAULT_SESSIONS_MAX 10 /* Default for MaxSessions */ 41 42/* Magic name for internal sftp-server */ 43#define INTERNAL_SFTP_NAME "internal-sftp" 44 45typedef struct { 46 u_int num_ports; 47 u_int ports_from_cmdline; 48 int 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 int address_family; /* Address family used by the server. */ 52 char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */ 53 int num_host_key_files; /* Number of files for host keys. */ 54 char *host_cert_files[MAX_HOSTCERTS]; /* Files containing host certs. */ 55 int num_host_cert_files; /* Number of files for host certs. */ 56 char *pid_file; /* Where to put our pid */ 57 int server_key_bits;/* Size of the server key. */ 58 int login_grace_time; /* Disconnect if no auth in this time 59 * (sec). */ 60 int key_regeneration_time; /* Server key lifetime (seconds). */ 61 int permit_root_login; /* PERMIT_*, see above */ 62 int ignore_rhosts; /* Ignore .rhosts and .shosts. */ 63 int ignore_root_rhosts; /* Ignore .rhosts and .shosts for root; 64 defaults to ignore_rhosts if not 65 given. */ 66 int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts 67 * for RhostsRsaAuth */ 68 int print_motd; /* If true, print /etc/motd. */ 69 int print_lastlog; /* If true, print lastlog */ 70 int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */ 71 int x11_display_offset; /* What DISPLAY number to start 72 * searching at */ 73 int x11_use_localhost; /* If true, use localhost for fake X11 server. */ 74 char *xauth_location; /* Location of xauth program */ 75 int strict_modes; /* If true, require string home dir modes. */ 76 int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */ 77 char *ciphers; /* Supported SSH2 ciphers. */ 78 char *macs; /* Supported SSH2 macs. */ 79 int protocol; /* Supported protocol versions. */ 80 int gateway_ports; /* If true, allow remote connects to forwarded ports. */ 81 SyslogFacility log_facility; /* Facility for system logging. */ 82 LogLevel log_level; /* Level for system logging. */ 83 int rhosts_rsa_authentication; /* If true, permit rhosts RSA 84 * authentication. */ 85 int hostbased_authentication; /* If true, permit ssh2 hostbased auth */ 86 int hostbased_uses_name_from_packet_only; /* experimental */ 87 int rsa_authentication; /* If true, permit RSA authentication. */ 88 int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ 89 int kerberos_authentication; /* If true, permit Kerberos 90 * authentication. */ 91 int kerberos_or_local_passwd; /* If true, permit kerberos 92 * and any other password 93 * authentication mechanism, 94 * such as SecurID or 95 * /etc/passwd */ 96 int kerberos_ticket_cleanup; /* If true, destroy ticket 97 * file on logout. */ 98 int kerberos_tgt_passing; /* If true, permit Kerberos TGT 99 * passing. */ 100 int kerberos_get_afs_token; /* If true, try to get AFS token if 101 * authenticated with Kerberos. */ 102#ifdef AFS 103 int afs_token_passing; /* If true, permit AFS token passing. */ 104#endif 105 int gss_authentication; /* If true, permit GSSAPI authentication */ 106 int gss_cleanup_creds; /* If true, destroy cred cache on logout */ 107 int password_authentication; /* If true, permit password 108 * authentication. */ 109 int kbd_interactive_authentication; /* If true, permit */ 110 int challenge_response_authentication; 111 int zero_knowledge_password_authentication; 112 /* If true, permit jpake auth */ 113 int permit_empty_passwd; /* If false, do not permit empty 114 * passwords. */ 115 int permit_user_env; /* If true, read ~/.ssh/environment */ 116 int use_login; /* If true, login(1) is used */ 117 int compression; /* If true, compression is allowed */ 118 int allow_tcp_forwarding; 119 int allow_agent_forwarding; 120 u_int num_allow_users; 121 char *allow_users[MAX_ALLOW_USERS]; 122 u_int num_deny_users; 123 char *deny_users[MAX_DENY_USERS]; 124 u_int num_allow_groups; 125 char *allow_groups[MAX_ALLOW_GROUPS]; 126 u_int num_deny_groups; 127 char *deny_groups[MAX_DENY_GROUPS]; 128 129 u_int num_subsystems; 130 char *subsystem_name[MAX_SUBSYSTEMS]; 131 char *subsystem_command[MAX_SUBSYSTEMS]; 132 char *subsystem_args[MAX_SUBSYSTEMS]; 133 134 u_int num_accept_env; 135 char *accept_env[MAX_ACCEPT_ENV]; 136 137 int max_startups_begin; 138 int max_startups_rate; 139 int max_startups; 140 int max_authtries; 141 int max_sessions; 142 char *banner; /* SSH-2 banner message */ 143 int use_dns; 144 int client_alive_interval; /* 145 * poke the client this often to 146 * see if it's still there 147 */ 148 int client_alive_count_max; /* 149 * If the client is unresponsive 150 * for this many intervals above, 151 * disconnect the session 152 */ 153 154 char *authorized_keys_file; /* File containing public keys */ 155 char *authorized_keys_file2; 156 157 int use_pam; /* Enable auth via PAM */ 158 int none_enabled; /* enable NONE cipher switch */ 159 int tcp_rcv_buf_poll; /* poll tcp rcv window in autotuning kernels*/ 160 int hpn_disabled; /* disable hpn functionality. false by default */ 161 int hpn_buffer_size; /* set the hpn buffer size - default 3MB */ 162 163 char *adm_forced_command; 164 165 int permit_tun; 166 167 int num_permitted_opens; 168 169 char *chroot_directory; 170 char *revoked_keys_file; 171 char *trusted_user_ca_keys; 172 char *authorized_principals_file; 173} ServerOptions; 174 175void initialize_server_options(ServerOptions *); 176void fill_default_server_options(ServerOptions *); 177int process_server_config_line(ServerOptions *, char *, const char *, int, 178 int *, const char *, const char *, const char *); 179void load_server_config(const char *, Buffer *); 180void parse_server_config(ServerOptions *, const char *, Buffer *, 181 const char *, const char *, const char *); 182void parse_server_match_config(ServerOptions *, const char *, const char *, 183 const char *); 184void copy_set_server_options(ServerOptions *, ServerOptions *, int); 185void dump_config(ServerOptions *); 186char *derelativise_path(const char *); 187 188#endif /* SERVCONF_H */ 189