[gssapi-openssh.git] / openssh / readconf.h

/* $OpenBSD: readconf.h,v 1.74 2008/06/26 11:46:31 grunk 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. */
	u_short	  listen_port;		/* Port to forward. */
	char	 *connect_host;		/* Host to connect. */
	u_short	  connect_port;		/* Port to connect on connect_host. */
}       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_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_keyex;              /* Try GSS key exchange */
	int     gss_deleg_creds;	/* Delegate GSS credentials */
	int	gss_trust_dns;		/* Trust DNS for GSS canonicalization */
	int     password_authentication;	/* Try password
						 * authentication. */
	int     kbd_interactive_authentication; /* Try keyboard-interactive auth. */
	char	*kbd_interactive_devices; /* Keyboard-interactive auth devices. */
	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     tcp_rcv_buf; /* user switch to set tcp recv buffer */
	int	tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */
	int 	hpn_disabled; 	 /* Switch to disable HPN buffer management */
	int	hpn_buffer_size; /* User definable size for HPN buffer window */

	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. */
	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    implicit;	/* Login user was not specified.
				   Server may choose based on authctxt. */
	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   *smartcard_device; /* Smartcard reader device */
	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[SSH_MAX_FORWARDS_PER_DIRECTION];

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

	int	enable_ssh_keysign;
	int64_t rekey_limit;
	int	none_switch;	/* Use none cipher */
	int	none_enabled;	/* Allow none to be used */
	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	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;

}       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

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
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 */
Commit	Line	Data
5156b1a1	1	/* $OpenBSD: readconf.h,v 1.74 2008/06/26 11:46:31 grunk Exp $ */
1e608e42	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	* 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
3c0ef626	16	#ifndef READCONF_H
	17	#define READCONF_H
	18
3c0ef626	19	/* Data structure for representing a forwarding request. */
	20
	21	typedef struct {
dfddba3d	22	char listen_host; / Host (address) to listen on. */
	23	u_short listen_port; /* Port to forward. */
	24	char connect_host; / Host to connect. */
	25	u_short connect_port; /* Port to connect on connect_host. */
3c0ef626	26	} Forward;
	27	/* Data structure for representing option data. */
	28
7e82606e	29	#define MAX_SEND_ENV 256
7e82606e	30
3c0ef626	31	typedef struct {
	32	int forward_agent; /* Forward authentication agent. */
	33	int forward_x11; /* Forward X11 display. */
540d72c3	34	int forward_x11_trusted; /* Trust Forward X11 display. */
30460aeb	35	int exit_on_forward_failure; /* Exit if bind(2) fails for -L/-R */
3c0ef626	36	char xauth_location; / Location for xauth program */
	37	int gateway_ports; /* Allow remote connects to forwarded ports. */
	38	int use_privileged_port; /* Don't use privileged port if false. */
3c0ef626	39	int rhosts_rsa_authentication; /* Try rhosts with RSA
	40	* authentication. */
	41	int rsa_authentication; /* Try RSA authentication. */
	42	int pubkey_authentication; /* Try ssh2 pubkey authentication. */
	43	int hostbased_authentication; /* ssh2's rhosts_rsa */
	44	int challenge_response_authentication;
	45	/* Try S/Key or TIS, authentication. */
7cac2b65	46	int gss_authentication; /* Try GSS authentication */
ea18de5d	47	int gss_keyex; /* Try GSS key exchange */
7cac2b65	48	int gss_deleg_creds; /* Delegate GSS credentials */
fe4ad273	49	int gss_trust_dns; /* Trust DNS for GSS canonicalization */
3c0ef626	50	int password_authentication; /* Try password
	51	* authentication. */
	52	int kbd_interactive_authentication; /* Try keyboard-interactive auth. */
	53	char kbd_interactive_devices; / Keyboard-interactive auth devices. */
3c0ef626	54	int batch_mode; /* Batch mode: do not ask for passwords. */
	55	int check_host_ip; /* Also keep track of keys for IP address */
	56	int strict_host_key_checking; /* Strict host key checking. */
	57	int compression; /* Compress packets in both directions. */
	58	int compression_level; /* Compression level 1 (fast) to 9
	59	* (best). */
540d72c3	60	int tcp_keep_alive; /* Set SO_KEEPALIVE. */
473db5ab	61	int tcp_rcv_buf; /* user switch to set tcp recv buffer */
a7213e65	62	int tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */
	63	int hpn_disabled; /* Switch to disable HPN buffer management */
	64	int hpn_buffer_size; /* User definable size for HPN buffer window */
	65
3c0ef626	66	LogLevel log_level; /* Level for logging. */
	67
	68	int port; /* Port to connect. */
7cac2b65	69	int address_family;
3c0ef626	70	int connection_attempts; /* Max attempts (seconds) before
3c0ef626	71	* giving up */
7cac2b65	72	int connection_timeout; /* Max time (seconds) before
540d72c3	73	* aborting connection attempt */
3c0ef626	74	int number_of_password_prompts; /* Max number of password
	75	* prompts. */
	76	int cipher; /* Cipher to use. */
	77	char ciphers; / SSH2 ciphers in order of preference. */
	78	char macs; / SSH2 macs in order of preference. */
	79	char hostkeyalgorithms; / SSH2 server key types in order of preference. */
	80	int protocol; /* Protocol in order of preference. */
	81	char hostname; / Real host to connect. */
	82	char host_key_alias; / hostname alias for .ssh/known_hosts */
	83	char proxy_command; / Proxy command for connecting the host. */
	84	char user; / User to log in as. */
68378849	85	int implicit; /* Login user was not specified.
68378849	86	Server may choose based on authctxt. */
3c0ef626	87	int escape_char; /* Escape character; -2 = none */
3c0ef626	88
1e608e42	89	char system_hostfile;/ Path for /etc/ssh/ssh_known_hosts. */
3c0ef626	90	char user_hostfile; / Path for $HOME/.ssh/known_hosts. */
	91	char *system_hostfile2;
	92	char *user_hostfile2;
	93	char *preferred_authentications;
	94	char bind_address; / local socket address for connection to sshd */
	95	char smartcard_device; / Smartcard reader device */
7cac2b65	96	int verify_host_key_dns; /* Verify host key using DNS */
3c0ef626	97
	98	int num_identity_files; /* Number of files for RSA/DSA identities. */
	99	char *identity_files[SSH_MAX_IDENTITY_FILES];
	100	Key *identity_keys[SSH_MAX_IDENTITY_FILES];
	101
	102	/* Local TCP/IP forward requests. */
	103	int num_local_forwards;
	104	Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
	105
	106	/* Remote TCP/IP forward requests. */
	107	int num_remote_forwards;
	108	Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
	109	int clear_forwardings;
bfe49944	110
bfe49944	111	int enable_ssh_keysign;
e74dc197	112	int64_t rekey_limit;
6df46d40	113	int none_switch; /* Use none cipher */
a7213e65	114	int none_enabled; /* Allow none to be used */
3c0ef626	115	int no_host_authentication_for_localhost;
12a403af	116	int identities_only;
7e82606e	117	int server_alive_interval;
540d72c3	118	int server_alive_count_max;
7e82606e	119
	120	int num_send_env;
	121	char *send_env[MAX_SEND_ENV];
	122
	123	char *control_path;
	124	int control_master;
dfddba3d	125
dfddba3d	126	int hash_known_hosts;
08822d99	127
	128	int tun_open; /* tun(4) */
	129	int tun_local; /* force tun device (optional) */
	130	int tun_remote; /* force tun device (optional) */
	131
	132	char *local_command;
	133	int permit_local_command;
5156b1a1	134	int visual_host_key;
08822d99	135
3c0ef626	136	} Options;
3c0ef626	137
2ce0bfe4	138	#define SSHCTL_MASTER_NO 0
	139	#define SSHCTL_MASTER_YES 1
	140	#define SSHCTL_MASTER_AUTO 2
	141	#define SSHCTL_MASTER_ASK 3
	142	#define SSHCTL_MASTER_AUTO_ASK 4
3c0ef626	143
	144	void initialize_options(Options *);
	145	void fill_default_options(Options *);
7e82606e	146	int read_config_file(const char , const char , Options *, int);
dfddba3d	147	int parse_forward(Forward , const char );
3c0ef626	148
	149	int
	150	process_config_line(Options , const char , char , const char , int, int *);
	151
dfddba3d	152	void add_local_forward(Options , const Forward );
dfddba3d	153	void add_remote_forward(Options , const Forward );
3c0ef626	154
3c0ef626	155	#endif /* READCONF_H */