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d27b947178
[auth-options.c auth-options.h channels.c channels.h clientloop.c]
[misc.c misc.h readconf.c readconf.h scp.c servconf.c servconf.h]
[serverloop.c sftp.c ssh.1 ssh.c ssh_config ssh_config.5 sshconnect.c]
[sshconnect.h sshd.8 sshd_config sshd_config.5]
Add support for tun(4) forwarding over OpenSSH, based on an idea and
initial channel code bits by markus@. This is a simple and easy way to
use OpenSSH for ad hoc virtual private network connections, e.g.
administrative tunnels or secure wireless access. It's based on a new
ssh channel and works similar to the existing TCP forwarding support,
except that it depends on the tun(4) network interface on both ends of
the connection for layer 2 or layer 3 tunneling. This diff also adds
support for LocalCommand in the ssh(1) client.
ok djm@, markus@, jmc@ (manpages), tested and discussed with others
149 lines
5.8 KiB
C
149 lines
5.8 KiB
C
/* $OpenBSD: servconf.h,v 1.72 2005/12/06 22:38:27 reyk Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Definitions for server configuration data and for the functions reading it.
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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#ifndef SERVCONF_H
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#define SERVCONF_H
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#include "buffer.h"
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#define MAX_PORTS 256 /* Max # ports. */
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#define MAX_ALLOW_USERS 256 /* Max # users on allow list. */
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#define MAX_DENY_USERS 256 /* Max # users on deny list. */
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#define MAX_ALLOW_GROUPS 256 /* Max # groups on allow list. */
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#define MAX_DENY_GROUPS 256 /* Max # groups on deny list. */
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#define MAX_SUBSYSTEMS 256 /* Max # subsystems. */
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#define MAX_HOSTKEYS 256 /* Max # hostkeys. */
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#define MAX_ACCEPT_ENV 256 /* Max # of env vars. */
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/* permit_root_login */
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#define PERMIT_NOT_SET -1
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#define PERMIT_NO 0
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#define PERMIT_FORCED_ONLY 1
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#define PERMIT_NO_PASSWD 2
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#define PERMIT_YES 3
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#define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */
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typedef struct {
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u_int num_ports;
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u_int ports_from_cmdline;
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u_short ports[MAX_PORTS]; /* Port number to listen on. */
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char *listen_addr; /* Address on which the server listens. */
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struct addrinfo *listen_addrs; /* Addresses on which the server listens. */
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int address_family; /* Address family used by the server. */
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char *host_key_files[MAX_HOSTKEYS]; /* Files containing host keys. */
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int num_host_key_files; /* Number of files for host keys. */
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char *pid_file; /* Where to put our pid */
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int server_key_bits;/* Size of the server key. */
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int login_grace_time; /* Disconnect if no auth in this time
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* (sec). */
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int key_regeneration_time; /* Server key lifetime (seconds). */
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int permit_root_login; /* PERMIT_*, see above */
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int ignore_rhosts; /* Ignore .rhosts and .shosts. */
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int ignore_user_known_hosts; /* Ignore ~/.ssh/known_hosts
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* for RhostsRsaAuth */
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int print_motd; /* If true, print /etc/motd. */
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int print_lastlog; /* If true, print lastlog */
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int x11_forwarding; /* If true, permit inet (spoofing) X11 fwd. */
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int x11_display_offset; /* What DISPLAY number to start
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* searching at */
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int x11_use_localhost; /* If true, use localhost for fake X11 server. */
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char *xauth_location; /* Location of xauth program */
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int strict_modes; /* If true, require string home dir modes. */
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int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */
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char *ciphers; /* Supported SSH2 ciphers. */
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char *macs; /* Supported SSH2 macs. */
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int protocol; /* Supported protocol versions. */
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int gateway_ports; /* If true, allow remote connects to forwarded ports. */
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SyslogFacility log_facility; /* Facility for system logging. */
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LogLevel log_level; /* Level for system logging. */
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int rhosts_rsa_authentication; /* If true, permit rhosts RSA
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* authentication. */
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int hostbased_authentication; /* If true, permit ssh2 hostbased auth */
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int hostbased_uses_name_from_packet_only; /* experimental */
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int rsa_authentication; /* If true, permit RSA authentication. */
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int pubkey_authentication; /* If true, permit ssh2 pubkey authentication. */
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int kerberos_authentication; /* If true, permit Kerberos
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* authentication. */
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int kerberos_or_local_passwd; /* If true, permit kerberos
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* and any other password
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* authentication mechanism,
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* such as SecurID or
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* /etc/passwd */
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int kerberos_ticket_cleanup; /* If true, destroy ticket
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* file on logout. */
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int kerberos_get_afs_token; /* If true, try to get AFS token if
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* authenticated with Kerberos. */
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int gss_authentication; /* If true, permit GSSAPI authentication */
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int gss_cleanup_creds; /* If true, destroy cred cache on logout */
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int password_authentication; /* If true, permit password
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* authentication. */
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int kbd_interactive_authentication; /* If true, permit */
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int challenge_response_authentication;
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int permit_empty_passwd; /* If false, do not permit empty
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* passwords. */
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int permit_user_env; /* If true, read ~/.ssh/environment */
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int use_login; /* If true, login(1) is used */
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int compression; /* If true, compression is allowed */
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int allow_tcp_forwarding;
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u_int num_allow_users;
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char *allow_users[MAX_ALLOW_USERS];
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u_int num_deny_users;
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char *deny_users[MAX_DENY_USERS];
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u_int num_allow_groups;
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char *allow_groups[MAX_ALLOW_GROUPS];
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u_int num_deny_groups;
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char *deny_groups[MAX_DENY_GROUPS];
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u_int num_subsystems;
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char *subsystem_name[MAX_SUBSYSTEMS];
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char *subsystem_command[MAX_SUBSYSTEMS];
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u_int num_accept_env;
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char *accept_env[MAX_ACCEPT_ENV];
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int max_startups_begin;
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int max_startups_rate;
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int max_startups;
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int max_authtries;
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char *banner; /* SSH-2 banner message */
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int use_dns;
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int client_alive_interval; /*
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* poke the client this often to
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* see if it's still there
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*/
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int client_alive_count_max; /*
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* If the client is unresponsive
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* for this many intervals above,
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* disconnect the session
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*/
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char *authorized_keys_file; /* File containing public keys */
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char *authorized_keys_file2;
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int use_pam; /* Enable auth via PAM */
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int permit_tun;
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} ServerOptions;
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void initialize_server_options(ServerOptions *);
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void fill_default_server_options(ServerOptions *);
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int process_server_config_line(ServerOptions *, char *, const char *, int);
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void load_server_config(const char *, Buffer *);
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void parse_server_config(ServerOptions *, const char *, Buffer *);
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#endif /* SERVCONF_H */
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