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5262cbfb | 1 | /* $OpenBSD: servconf.h,v 1.87 2009/01/22 10:02:34 djm Exp $ */ |
e9702f7d | 2 | |
3c0ef626 | 3 | /* |
4 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | |
5 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
6 | * All rights reserved | |
7 | * Definitions for server configuration data and for the functions reading it. | |
8 | * | |
9 | * As far as I am concerned, the code I have written for this software | |
10 | * can be used freely for any purpose. Any derived versions of this | |
11 | * software must be clearly marked as such, and if the derived work is | |
12 | * incompatible with the protocol description in the RFC file, it must be | |
13 | * called by a name other than "ssh" or "Secure Shell". | |
14 | */ | |
15 | ||
3c0ef626 | 16 | #ifndef SERVCONF_H |
17 | #define SERVCONF_H | |
18 | ||
19 | #define MAX_PORTS 256 /* Max # ports. */ | |
20 | ||
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. */ | |
25 | #define MAX_SUBSYSTEMS 256 /* Max # subsystems. */ | |
26 | #define MAX_HOSTKEYS 256 /* Max # hostkeys. */ | |
7e82606e | 27 | #define MAX_ACCEPT_ENV 256 /* Max # of env vars. */ |
30460aeb | 28 | #define MAX_MATCH_GROUPS 256 /* Max # of groups for Match. */ |
3c0ef626 | 29 | |
30 | /* permit_root_login */ | |
31 | #define PERMIT_NOT_SET -1 | |
32 | #define PERMIT_NO 0 | |
33 | #define PERMIT_FORCED_ONLY 1 | |
34 | #define PERMIT_NO_PASSWD 2 | |
35 | #define PERMIT_YES 3 | |
36 | ||
7e82606e | 37 | #define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */ |
5156b1a1 | 38 | #define DEFAULT_SESSIONS_MAX 10 /* Default for MaxSessions */ |
3c0ef626 | 39 | |
e74dc197 | 40 | /* Magic name for internal sftp-server */ |
41 | #define INTERNAL_SFTP_NAME "internal-sftp" | |
42 | ||
3c0ef626 | 43 | typedef struct { |
5262cbfb | 44 | u_int num_ports; |
45 | u_int ports_from_cmdline; | |
46 | int ports[MAX_PORTS]; /* Port number to listen on. */ | |
3c0ef626 | 47 | char *listen_addr; /* Address on which the server listens. */ |
48 | struct addrinfo *listen_addrs; /* Addresses on which the server listens. */ | |
dfddba3d | 49 | int address_family; /* Address family used by the server. */ |
3c0ef626 | 50 | char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */ |
51 | int num_host_key_files; /* Number of files for host keys. */ | |
52 | char *pid_file; /* Where to put our pid */ | |
53 | int server_key_bits;/* Size of the server key. */ | |
54 | int login_grace_time; /* Disconnect if no auth in this time | |
55 | * (sec). */ | |
56 | int key_regeneration_time; /* Server key lifetime (seconds). */ | |
57 | int permit_root_login; /* PERMIT_*, see above */ | |
58 | int ignore_rhosts; /* Ignore .rhosts and .shosts. */ | |
59 | int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts | |
60 | * for RhostsRsaAuth */ | |
61 | int print_motd; /* If true, print /etc/motd. */ | |
62 | int print_lastlog; /* If true, print lastlog */ | |
63 | int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */ | |
64 | int x11_display_offset; /* What DISPLAY number to start | |
65 | * searching at */ | |
e9702f7d | 66 | int x11_use_localhost; /* If true, use localhost for fake X11 server. */ |
3c0ef626 | 67 | char *xauth_location; /* Location of xauth program */ |
68 | int strict_modes; /* If true, require string home dir modes. */ | |
540d72c3 | 69 | int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */ |
3c0ef626 | 70 | char *ciphers; /* Supported SSH2 ciphers. */ |
71 | char *macs; /* Supported SSH2 macs. */ | |
72 | int protocol; /* Supported protocol versions. */ | |
73 | int gateway_ports; /* If true, allow remote connects to forwarded ports. */ | |
74 | SyslogFacility log_facility; /* Facility for system logging. */ | |
75 | LogLevel log_level; /* Level for system logging. */ | |
3c0ef626 | 76 | int rhosts_rsa_authentication; /* If true, permit rhosts RSA |
77 | * authentication. */ | |
78 | int hostbased_authentication; /* If true, permit ssh2 hostbased auth */ | |
79 | int hostbased_uses_name_from_packet_only; /* experimental */ | |
80 | int rsa_authentication; /* If true, permit RSA authentication. */ | |
81 | int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */ | |
3c0ef626 | 82 | int kerberos_authentication; /* If true, permit Kerberos |
83 | * authentication. */ | |
84 | int kerberos_or_local_passwd; /* If true, permit kerberos | |
85 | * and any other password | |
86 | * authentication mechanism, | |
87 | * such as SecurID or | |
88 | * /etc/passwd */ | |
89 | int kerberos_ticket_cleanup; /* If true, destroy ticket | |
90 | * file on logout. */ | |
75be3237 | 91 | #ifdef SESSION_HOOKS |
92 | int session_hooks_allow; /* If true, permit user hooks */ | |
93 | char* session_hooks_startup_cmd; /* cmd to be executed before */ | |
94 | char* session_hooks_shutdown_cmd; /* cmd to be executed after */ | |
3c0ef626 | 95 | #endif |
540d72c3 | 96 | int kerberos_get_afs_token; /* If true, try to get AFS token if |
97 | * authenticated with Kerberos. */ | |
7cac2b65 | 98 | int gss_authentication; /* If true, permit GSSAPI authentication */ |
05ed7e1e | 99 | int gss_deleg_creds; /* If true, store delegated GSSAPI credentials*/ |
fe4ad273 | 100 | int gss_keyex; /* If true, permit GSSAPI key exchange */ |
7cac2b65 | 101 | int gss_cleanup_creds; /* If true, destroy cred cache on logout */ |
f713db99 | 102 | int gss_strict_acceptor; /* If true, restrict the GSSAPI acceptor name */ |
9c0efabd | 103 | char* gss_creds_path; /* If true, destroy cred cache on logout */ |
826a9049 | 104 | int gsi_allow_limited_proxy; /* If true, accept limited proxies */ |
3c0ef626 | 105 | int password_authentication; /* If true, permit password |
106 | * authentication. */ | |
107 | int kbd_interactive_authentication; /* If true, permit */ | |
108 | int challenge_response_authentication; | |
5262cbfb | 109 | int zero_knowledge_password_authentication; |
110 | /* If true, permit jpake auth */ | |
3c0ef626 | 111 | int permit_empty_passwd; /* If false, do not permit empty |
112 | * passwords. */ | |
d03f4262 | 113 | int permit_user_env; /* If true, read ~/.ssh/environment */ |
3c0ef626 | 114 | int use_login; /* If true, login(1) is used */ |
44a053a3 | 115 | int compression; /* If true, compression is allowed */ |
3c0ef626 | 116 | int allow_tcp_forwarding; |
5156b1a1 | 117 | int allow_agent_forwarding; |
3c0ef626 | 118 | u_int num_allow_users; |
119 | char *allow_users[MAX_ALLOW_USERS]; | |
120 | u_int num_deny_users; | |
121 | char *deny_users[MAX_DENY_USERS]; | |
122 | u_int num_allow_groups; | |
123 | char *allow_groups[MAX_ALLOW_GROUPS]; | |
124 | u_int num_deny_groups; | |
125 | char *deny_groups[MAX_DENY_GROUPS]; | |
126 | ||
127 | u_int num_subsystems; | |
128 | char *subsystem_name[MAX_SUBSYSTEMS]; | |
129 | char *subsystem_command[MAX_SUBSYSTEMS]; | |
30460aeb | 130 | char *subsystem_args[MAX_SUBSYSTEMS]; |
3c0ef626 | 131 | |
7e82606e | 132 | u_int num_accept_env; |
133 | char *accept_env[MAX_ACCEPT_ENV]; | |
134 | ||
3c0ef626 | 135 | int max_startups_begin; |
136 | int max_startups_rate; | |
137 | int max_startups; | |
7e82606e | 138 | int max_authtries; |
5156b1a1 | 139 | int max_sessions; |
3c0ef626 | 140 | char *banner; /* SSH-2 banner message */ |
7cac2b65 | 141 | int use_dns; |
3c0ef626 | 142 | int client_alive_interval; /* |
e9702f7d | 143 | * poke the client this often to |
144 | * see if it's still there | |
3c0ef626 | 145 | */ |
146 | int client_alive_count_max; /* | |
147 | * If the client is unresponsive | |
148 | * for this many intervals above, | |
e9702f7d | 149 | * disconnect the session |
3c0ef626 | 150 | */ |
151 | ||
152 | char *authorized_keys_file; /* File containing public keys */ | |
153 | char *authorized_keys_file2; | |
08822d99 | 154 | |
30460aeb | 155 | char *adm_forced_command; |
156 | ||
7cac2b65 | 157 | int use_pam; /* Enable auth via PAM */ |
a7213e65 | 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 */ | |
08822d99 | 162 | |
163 | int permit_tun; | |
30460aeb | 164 | |
165 | int num_permitted_opens; | |
e74dc197 | 166 | |
167 | char *chroot_directory; | |
3c0ef626 | 168 | } ServerOptions; |
169 | ||
170 | void initialize_server_options(ServerOptions *); | |
3c0ef626 | 171 | void fill_default_server_options(ServerOptions *); |
30460aeb | 172 | int process_server_config_line(ServerOptions *, char *, const char *, int, |
173 | int *, const char *, const char *, const char *); | |
7e82606e | 174 | void load_server_config(const char *, Buffer *); |
30460aeb | 175 | void parse_server_config(ServerOptions *, const char *, Buffer *, |
176 | const char *, const char *, const char *); | |
177 | void parse_server_match_config(ServerOptions *, const char *, const char *, | |
178 | const char *); | |
0b90ac93 | 179 | void copy_set_server_options(ServerOptions *, ServerOptions *, int); |
5156b1a1 | 180 | void dump_config(ServerOptions *); |
3c0ef626 | 181 | |
182 | #endif /* SERVCONF_H */ |