summaryrefslogtreecommitdiff
path: root/readconf.h
blob: bc3e8c1bb080512de11befe71643081ed6b4d72f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/* $OpenBSD: readconf.h,v 1.89 2011/05/06 21:34:32 djm Exp $ */

/*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 * Functions for reading the configuration file.
 *
 * As far as I am concerned, the code I have written for this software
 * can be used freely for any purpose.  Any derived versions of this
 * software must be clearly marked as such, and if the derived work is
 * incompatible with the protocol description in the RFC file, it must be
 * called by a name other than "ssh" or "Secure Shell".
 */

#ifndef READCONF_H
#define READCONF_H

/* Data structure for representing a forwarding request. */

typedef struct {
	char	 *listen_host;		/* Host (address) to listen on. */
	int	  listen_port;		/* Port to forward. */
	char	 *connect_host;		/* Host to connect. */
	int	  connect_port;		/* Port to connect on connect_host. */
	int	  allocated_port;	/* Dynamically allocated listen port */
}       Forward;
/* Data structure for representing option data. */

#define MAX_SEND_ENV	256

typedef struct {
	int     forward_agent;	/* Forward authentication agent. */
	int     forward_x11;	/* Forward X11 display. */
	int     forward_x11_timeout;	/* Expiration for Cookies */
	int     forward_x11_trusted;	/* Trust Forward X11 display. */
	int     exit_on_forward_failure;	/* Exit if bind(2) fails for -L/-R */
	char   *xauth_location;	/* Location for xauth program */
	int     gateway_ports;	/* Allow remote connects to forwarded ports. */
	int     use_privileged_port;	/* Don't use privileged port if false. */
	int     rhosts_rsa_authentication;	/* Try rhosts with RSA
						 * authentication. */
	int     rsa_authentication;	/* Try RSA authentication. */
	int     pubkey_authentication;	/* Try ssh2 pubkey authentication. */
	int     hostbased_authentication;	/* ssh2's rhosts_rsa */
	int     challenge_response_authentication;
					/* Try S/Key or TIS, authentication. */
	int     gss_authentication;	/* Try GSS authentication */
	int     gss_deleg_creds;	/* Delegate GSS credentials */
	int     password_authentication;	/* Try password
						 * authentication. */
	int     kbd_interactive_authentication; /* Try keyboard-interactive auth. */
	char	*kbd_interactive_devices; /* Keyboard-interactive auth devices. */
	int     zero_knowledge_password_authentication;	/* Try jpake */
	int     batch_mode;	/* Batch mode: do not ask for passwords. */
	int     check_host_ip;	/* Also keep track of keys for IP address */
	int     strict_host_key_checking;	/* Strict host key checking. */
	int     compression;	/* Compress packets in both directions. */
	int     compression_level;	/* Compression level 1 (fast) to 9
					 * (best). */
	int     tcp_keep_alive;	/* Set SO_KEEPALIVE. */
	int	ip_qos_interactive;	/* IP ToS/DSCP/class for interactive */
	int	ip_qos_bulk;		/* IP ToS/DSCP/class for bulk traffic */
	LogLevel log_level;	/* Level for logging. */

	int     port;		/* Port to connect. */
	int     address_family;
	int     connection_attempts;	/* Max attempts (seconds) before
					 * giving up */
	int     connection_timeout;	/* Max time (seconds) before
					 * aborting connection attempt */
	int     number_of_password_prompts;	/* Max number of password
						 * prompts. */
	int     cipher;		/* Cipher to use. */
	char   *ciphers;	/* SSH2 ciphers in order of preference. */
	char   *macs;		/* SSH2 macs in order of preference. */
	char   *hostkeyalgorithms;	/* SSH2 server key types in order of preference. */
	char   *kex_algorithms;	/* SSH2 kex methods in order of preference. */
	int	protocol;	/* Protocol in order of preference. */
	char   *hostname;	/* Real host to connect. */
	char   *host_key_alias;	/* hostname alias for .ssh/known_hosts */
	char   *proxy_command;	/* Proxy command for connecting the host. */
	char   *user;		/* User to log in as. */
	int     escape_char;	/* Escape character; -2 = none */

	char   *system_hostfile;/* Path for /etc/ssh/ssh_known_hosts. */
	char   *user_hostfile;	/* Path for $HOME/.ssh/known_hosts. */
	char   *system_hostfile2;
	char   *user_hostfile2;
	char   *preferred_authentications;
	char   *bind_address;	/* local socket address for connection to sshd */
	char   *pkcs11_provider; /* PKCS#11 provider */
	int	verify_host_key_dns;	/* Verify host key using DNS */

	int     num_identity_files;	/* Number of files for RSA/DSA identities. */
	char   *identity_files[SSH_MAX_IDENTITY_FILES];
	Key    *identity_keys[SSH_MAX_IDENTITY_FILES];

	/* Local TCP/IP forward requests. */
	int     num_local_forwards;
	Forward *local_forwards;

	/* Remote TCP/IP forward requests. */
	int     num_remote_forwards;
	Forward *remote_forwards;
	int	clear_forwardings;

	int	enable_ssh_keysign;
	int64_t rekey_limit;
	int	no_host_authentication_for_localhost;
	int	identities_only;
	int	server_alive_interval;
	int	server_alive_count_max;

	int     num_send_env;
	char   *send_env[MAX_SEND_ENV];

	char	*control_path;
	int	control_master;
	int     control_persist; /* ControlPersist flag */
	int     control_persist_timeout; /* ControlPersist timeout (seconds) */

	int	hash_known_hosts;

	int	tun_open;	/* tun(4) */
	int     tun_local;	/* force tun device (optional) */
	int     tun_remote;	/* force tun device (optional) */

	char	*local_command;
	int	permit_local_command;
	int	visual_host_key;

	int	use_roaming;

	int	request_tty;
}       Options;

#define SSHCTL_MASTER_NO	0
#define SSHCTL_MASTER_YES	1
#define SSHCTL_MASTER_AUTO	2
#define SSHCTL_MASTER_ASK	3
#define SSHCTL_MASTER_AUTO_ASK	4

#define REQUEST_TTY_AUTO	0
#define REQUEST_TTY_NO		1
#define REQUEST_TTY_YES		2
#define REQUEST_TTY_FORCE	3

void     initialize_options(Options *);
void     fill_default_options(Options *);
int	 read_config_file(const char *, const char *, Options *, int);
int	 parse_forward(Forward *, const char *, int, int);

int
process_config_line(Options *, const char *, char *, const char *, int, int *);

void	 add_local_forward(Options *, const Forward *);
void	 add_remote_forward(Options *, const Forward *);

#endif				/* READCONF_H */