Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1 | /* |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 4 | * All rights reserved |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 5 | * Definitions for server configuration data and for the functions reading it. |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 6 | * |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 7 | * As far as I am concerned, the code I have written for this software |
| 8 | * can be used freely for any purpose. Any derived versions of this |
| 9 | * software must be clearly marked as such, and if the derived work is |
| 10 | * incompatible with the protocol description in the RFC file, it must be |
| 11 | * called by a name other than "ssh" or "Secure Shell". |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 12 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 13 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 14 | /* RCSID("$OpenBSD: servconf.h,v 1.36 2001/02/03 10:08:37 markus Exp $"); */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 15 | |
| 16 | #ifndef SERVCONF_H |
| 17 | #define SERVCONF_H |
| 18 | |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 19 | #define MAX_PORTS 256 /* Max # ports. */ |
| 20 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 21 | #define MAX_ALLOW_USERS 256 /* Max # users on allow list. */ |
| 22 | #define MAX_DENY_USERS 256 /* Max # users on deny list. */ |
| 23 | #define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */ |
| 24 | #define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */ |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 25 | #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */ |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 26 | #define MAX_HOSTKEYS 256 /* Max # hostkeys. */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 27 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 28 | typedef struct { |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 29 | u_int num_ports; |
| 30 | u_int ports_from_cmdline; |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 31 | u_short ports[MAX_PORTS]; /* Port number to listen on. */ |
| 32 | char *listen_addr; /* Address on which the server listens. */ |
| 33 | struct addrinfo *listen_addrs; /* Addresses on which the server listens. */ |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 34 | char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */ |
| 35 | int num_host_key_files; /* Number of files for host keys. */ |
Damien Miller | 6f83b8e | 2000-05-02 09:23:45 +1000 | [diff] [blame] | 36 | char *pid_file; /* Where to put our pid */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 37 | int server_key_bits;/* Size of the server key. */ |
| 38 | int login_grace_time; /* Disconnect if no auth in this time |
| 39 | * (sec). */ |
| 40 | int key_regeneration_time; /* Server key lifetime (seconds). */ |
| 41 | int permit_root_login; /* If true, permit root login. */ |
| 42 | int ignore_rhosts; /* Ignore .rhosts and .shosts. */ |
| 43 | int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts |
| 44 | * for RhostsRsaAuth */ |
| 45 | int print_motd; /* If true, print /etc/motd. */ |
| 46 | int check_mail; /* If true, check for new mail. */ |
| 47 | int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */ |
| 48 | int x11_display_offset; /* What DISPLAY number to start |
| 49 | * searching at */ |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 50 | char *xauth_location; /* Location of xauth program */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 51 | int strict_modes; /* If true, require string home dir modes. */ |
| 52 | int keepalives; /* If true, set SO_KEEPALIVE. */ |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 53 | char *ciphers; /* Ciphers in order of preference. */ |
| 54 | int protocol; /* Protocol in order of preference. */ |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 55 | int gateway_ports; /* If true, allow remote connects to forwarded ports. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 56 | SyslogFacility log_facility; /* Facility for system logging. */ |
| 57 | LogLevel log_level; /* Level for system logging. */ |
| 58 | int rhosts_authentication; /* If true, permit rhosts |
| 59 | * authentication. */ |
| 60 | int rhosts_rsa_authentication; /* If true, permit rhosts RSA |
| 61 | * authentication. */ |
| 62 | int rsa_authentication; /* If true, permit RSA authentication. */ |
Damien Miller | 0bc1bd8 | 2000-11-13 22:57:25 +1100 | [diff] [blame] | 63 | int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 64 | #ifdef KRB4 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 65 | int kerberos_authentication; /* If true, permit Kerberos |
| 66 | * authentication. */ |
| 67 | int kerberos_or_local_passwd; /* If true, permit kerberos |
| 68 | * and any other password |
| 69 | * authentication mechanism, |
| 70 | * such as SecurID or |
| 71 | * /etc/passwd */ |
| 72 | int kerberos_ticket_cleanup; /* If true, destroy ticket |
| 73 | * file on logout. */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 74 | #endif |
| 75 | #ifdef AFS |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 76 | int kerberos_tgt_passing; /* If true, permit Kerberos tgt |
| 77 | * passing. */ |
| 78 | int afs_token_passing; /* If true, permit AFS token passing. */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 79 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 80 | int password_authentication; /* If true, permit password |
| 81 | * authentication. */ |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 82 | int kbd_interactive_authentication; /* If true, permit */ |
Ben Lindstrom | 95fb2dd | 2001-01-23 03:12:10 +0000 | [diff] [blame] | 83 | int challenge_reponse_authentication; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 84 | int permit_empty_passwd; /* If false, do not permit empty |
| 85 | * passwords. */ |
| 86 | int use_login; /* If true, login(1) is used */ |
Damien Miller | 50a41ed | 2000-10-16 12:14:42 +1100 | [diff] [blame] | 87 | int allow_tcp_forwarding; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 88 | u_int num_allow_users; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 89 | char *allow_users[MAX_ALLOW_USERS]; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 90 | u_int num_deny_users; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 91 | char *deny_users[MAX_DENY_USERS]; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 92 | u_int num_allow_groups; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 93 | char *allow_groups[MAX_ALLOW_GROUPS]; |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 94 | u_int num_deny_groups; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 95 | char *deny_groups[MAX_DENY_GROUPS]; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 96 | |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 97 | u_int num_subsystems; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 98 | char *subsystem_name[MAX_SUBSYSTEMS]; |
| 99 | char *subsystem_command[MAX_SUBSYSTEMS]; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 100 | |
Damien Miller | 942da03 | 2000-08-18 13:59:06 +1000 | [diff] [blame] | 101 | int max_startups_begin; |
| 102 | int max_startups_rate; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 103 | int max_startups; |
Ben Lindstrom | 48bd7c1 | 2001-01-09 00:35:42 +0000 | [diff] [blame] | 104 | char *banner; /* SSH-2 banner message */ |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 105 | int reverse_mapping_check; /* cross-check ip and dns */ |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 106 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 107 | } ServerOptions; |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 108 | /* |
| 109 | * Initializes the server options to special values that indicate that they |
| 110 | * have not yet been set. |
| 111 | */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 112 | void initialize_server_options(ServerOptions * options); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 113 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 114 | /* |
| 115 | * Reads the server configuration file. This only sets the values for those |
| 116 | * options that have the special value indicating they have not been set. |
| 117 | */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 118 | void read_server_config(ServerOptions * options, const char *filename); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 119 | |
| 120 | /* Sets values for those values that have not yet been set. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 121 | void fill_default_server_options(ServerOptions * options); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 122 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 123 | #endif /* SERVCONF_H */ |