readconf.h revision 124211 
1/*	$OpenBSD: readconf.h,v 1.55 2003/09/01 18:15:50 markus Exp $	*/
2
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 * Functions for reading the configuration file.
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
16#ifndef READCONF_H
17#define READCONF_H
18
19#include "key.h"
20
21/* Data structure for representing a forwarding request. */
22
23typedef struct {
24	u_short	  port;		/* Port to forward. */
25	char	 *host;		/* Host to connect. */
26	u_short	  host_port;	/* Port to connect on host. */
27}       Forward;
28/* Data structure for representing option data. */
29
30typedef struct {
31	int     forward_agent;	/* Forward authentication agent. */
32	int     forward_x11;	/* Forward X11 display. */
33	char   *xauth_location;	/* Location for xauth program */
34	int     gateway_ports;	/* Allow remote connects to forwarded ports. */
35	int     use_privileged_port;	/* Don't use privileged port if false. */
36	int     rhosts_rsa_authentication;	/* Try rhosts with RSA
37						 * authentication. */
38	int     rsa_authentication;	/* Try RSA authentication. */
39	int     pubkey_authentication;	/* Try ssh2 pubkey authentication. */
40	int     hostbased_authentication;	/* ssh2's rhosts_rsa */
41	int     challenge_response_authentication;
42					/* Try S/Key or TIS, authentication. */
43	int     gss_authentication;	/* Try GSS authentication */
44	int     gss_deleg_creds;	/* Delegate GSS credentials */
45	int     password_authentication;	/* Try password
46						 * authentication. */
47	int     kbd_interactive_authentication; /* Try keyboard-interactive auth. */
48	char	*kbd_interactive_devices; /* Keyboard-interactive auth devices. */
49	int     batch_mode;	/* Batch mode: do not ask for passwords. */
50	int     check_host_ip;	/* Also keep track of keys for IP address */
51	int     strict_host_key_checking;	/* Strict host key checking. */
52	int     compression;	/* Compress packets in both directions. */
53	int     compression_level;	/* Compression level 1 (fast) to 9
54					 * (best). */
55	int     keepalives;	/* Set SO_KEEPALIVE. */
56	LogLevel log_level;	/* Level for logging. */
57
58	int     port;		/* Port to connect. */
59	int     address_family;
60	int     connection_attempts;	/* Max attempts (seconds) before
61					 * giving up */
62	int     connection_timeout;	/* Max time (seconds) before
63				 	 * aborting connection attempt */
64	int     number_of_password_prompts;	/* Max number of password
65						 * prompts. */
66	int     cipher;		/* Cipher to use. */
67	char   *ciphers;	/* SSH2 ciphers in order of preference. */
68	char   *macs;		/* SSH2 macs in order of preference. */
69	char   *hostkeyalgorithms;	/* SSH2 server key types in order of preference. */
70	int	protocol;	/* Protocol in order of preference. */
71	char   *hostname;	/* Real host to connect. */
72	char   *host_key_alias;	/* hostname alias for .ssh/known_hosts */
73	char   *proxy_command;	/* Proxy command for connecting the host. */
74	char   *user;		/* User to log in as. */
75	int     escape_char;	/* Escape character; -2 = none */
76
77	char   *system_hostfile;/* Path for /etc/ssh/ssh_known_hosts. */
78	char   *user_hostfile;	/* Path for $HOME/.ssh/known_hosts. */
79	char   *system_hostfile2;
80	char   *user_hostfile2;
81	char   *preferred_authentications;
82	char   *bind_address;	/* local socket address for connection to sshd */
83	char   *smartcard_device; /* Smartcard reader device */
84	int	verify_host_key_dns;	/* Verify host key using DNS */
85
86	int     num_identity_files;	/* Number of files for RSA/DSA identities. */
87	char   *identity_files[SSH_MAX_IDENTITY_FILES];
88	Key    *identity_keys[SSH_MAX_IDENTITY_FILES];
89
90	/* Local TCP/IP forward requests. */
91	int     num_local_forwards;
92	Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
93
94	/* Remote TCP/IP forward requests. */
95	int     num_remote_forwards;
96	Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
97	int	clear_forwardings;
98
99	int	enable_ssh_keysign;
100	int	rekey_limit;
101	int	no_host_authentication_for_localhost;
102}       Options;
103
104
105void     initialize_options(Options *);
106void     fill_default_options(Options *);
107int	 read_config_file(const char *, const char *, Options *);
108
109int
110process_config_line(Options *, const char *, char *, const char *, int, int *);
111
112void	 add_local_forward(Options *, u_short, const char *, u_short);
113void	 add_remote_forward(Options *, u_short, const char *, u_short);
114
115#endif				/* READCONF_H */
116