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Commit	Line	Data
	1	/* $OpenBSD: readconf.h,v 1.72 2008/01/19 23:09:49 djm 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	/* Data structure for representing a forwarding request. */
	20
	21	typedef struct {
	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. */
	26	} Forward;
	27	/* Data structure for representing option data. */
	28
	29	#define MAX_SEND_ENV 256
	30
	31	typedef struct {
	32	int forward_agent; /* Forward authentication agent. */
	33	int forward_x11; /* Forward X11 display. */
	34	int forward_x11_trusted; /* Trust Forward X11 display. */
	35	int exit_on_forward_failure; /* Exit if bind(2) fails for -L/-R */
	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. */
	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. */
	46	int gss_authentication; /* Try GSS authentication */
	47	int gss_keyex; /* Try GSS key exchange */
	48	int gss_deleg_creds; /* Delegate GSS credentials */
	49	int gss_trust_dns; /* Trust DNS for GSS canonicalization */
	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. */
	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). */
	60	int tcp_keep_alive; /* Set SO_KEEPALIVE. */
	61	int tcp_rcv_buf; /* user switch to set tcp recv buffer */
	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
	66	LogLevel log_level; /* Level for logging. */
	67
	68	int port; /* Port to connect. */
	69	int address_family;
	70	int connection_attempts; /* Max attempts (seconds) before
	71	* giving up */
	72	int connection_timeout; /* Max time (seconds) before
	73	* aborting connection attempt */
	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. */
	85	int implicit; /* Login user was not specified.
	86	Server may choose based on authctxt. */
	87	int escape_char; /* Escape character; -2 = none */
	88
	89	char system_hostfile;/ Path for /etc/ssh/ssh_known_hosts. */
	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 */
	96	int verify_host_key_dns; /* Verify host key using DNS */
	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;
	110
	111	int enable_ssh_keysign;
	112	int64_t rekey_limit;
	113	int none_switch; /* Use none cipher */
	114	int none_enabled; /* Allow none to be used */
	115	int no_host_authentication_for_localhost;
	116	int identities_only;
	117	int server_alive_interval;
	118	int server_alive_count_max;
	119
	120	int num_send_env;
	121	char *send_env[MAX_SEND_ENV];
	122
	123	char *control_path;
	124	int control_master;
	125
	126	int hash_known_hosts;
	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;
	134
	135	} Options;
	136
	137	#define SSHCTL_MASTER_NO 0
	138	#define SSHCTL_MASTER_YES 1
	139	#define SSHCTL_MASTER_AUTO 2
	140	#define SSHCTL_MASTER_ASK 3
	141	#define SSHCTL_MASTER_AUTO_ASK 4
	142
	143	void initialize_options(Options *);
	144	void fill_default_options(Options *);
	145	int read_config_file(const char , const char , Options *, int);
	146	int parse_forward(Forward , const char );
	147
	148	int
	149	process_config_line(Options , const char , char , const char , int, int *);
	150
	151	void add_local_forward(Options , const Forward );
	152	void add_remote_forward(Options , const Forward );
	153
	154	#endif /* READCONF_H */