1 /* $OpenBSD: readconf.h,v 1.90 2011/05/24 07:15:47 djm Exp $ */
4 * Author: Tatu Ylonen <ylo@cs.hut.fi>
5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
7 * Functions for reading the configuration file.
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".
19 /* Data structure for representing a forwarding request. */
22 char *listen_host; /* Host (address) to listen on. */
23 int listen_port; /* Port to forward. */
24 char *connect_host; /* Host to connect. */
25 int connect_port; /* Port to connect on connect_host. */
26 int allocated_port; /* Dynamically allocated listen port */
28 /* Data structure for representing option data. */
30 #define MAX_SEND_ENV 256
31 #define SSH_MAX_HOSTS_FILES 256
34 int forward_agent; /* Forward authentication agent. */
35 int forward_x11; /* Forward X11 display. */
36 int forward_x11_timeout; /* Expiration for Cookies */
37 int forward_x11_trusted; /* Trust Forward X11 display. */
38 int exit_on_forward_failure; /* Exit if bind(2) fails for -L/-R */
39 char *xauth_location; /* Location for xauth program */
40 int gateway_ports; /* Allow remote connects to forwarded ports. */
41 int use_privileged_port; /* Don't use privileged port if false. */
42 int rhosts_rsa_authentication; /* Try rhosts with RSA
44 int rsa_authentication; /* Try RSA authentication. */
45 int pubkey_authentication; /* Try ssh2 pubkey authentication. */
46 int hostbased_authentication; /* ssh2's rhosts_rsa */
47 int challenge_response_authentication;
48 /* Try S/Key or TIS, authentication. */
49 int gss_authentication; /* Try GSS authentication */
50 int gss_deleg_creds; /* Delegate GSS credentials */
51 int password_authentication; /* Try password
53 int kbd_interactive_authentication; /* Try keyboard-interactive auth. */
54 char *kbd_interactive_devices; /* Keyboard-interactive auth devices. */
55 int zero_knowledge_password_authentication; /* Try jpake */
56 int batch_mode; /* Batch mode: do not ask for passwords. */
57 int check_host_ip; /* Also keep track of keys for IP address */
58 int strict_host_key_checking; /* Strict host key checking. */
59 int compression; /* Compress packets in both directions. */
60 int compression_level; /* Compression level 1 (fast) to 9
62 int tcp_keep_alive; /* Set SO_KEEPALIVE. */
63 int tcp_rcv_buf; /* user switch to set tcp recv buffer */
64 int tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */
65 int hpn_disabled; /* Switch to disable HPN buffer management */
66 int hpn_buffer_size; /* User definable size for HPN buffer window */
67 int ip_qos_interactive; /* IP ToS/DSCP/class for interactive */
68 int ip_qos_bulk; /* IP ToS/DSCP/class for bulk traffic */
69 LogLevel log_level; /* Level for logging. */
71 int port; /* Port to connect. */
73 int connection_attempts; /* Max attempts (seconds) before
75 int connection_timeout; /* Max time (seconds) before
76 * aborting connection attempt */
77 int number_of_password_prompts; /* Max number of password
79 int cipher; /* Cipher to use. */
80 char *ciphers; /* SSH2 ciphers in order of preference. */
81 char *macs; /* SSH2 macs in order of preference. */
82 char *hostkeyalgorithms; /* SSH2 server key types in order of preference. */
83 char *kex_algorithms; /* SSH2 kex methods in order of preference. */
84 int protocol; /* Protocol in order of preference. */
85 char *hostname; /* Real host to connect. */
86 char *host_key_alias; /* hostname alias for .ssh/known_hosts */
87 char *proxy_command; /* Proxy command for connecting the host. */
88 char *user; /* User to log in as. */
89 int escape_char; /* Escape character; -2 = none */
91 u_int num_system_hostfiles; /* Paths for /etc/ssh/ssh_known_hosts */
92 char *system_hostfiles[SSH_MAX_HOSTS_FILES];
93 u_int num_user_hostfiles; /* Path for $HOME/.ssh/known_hosts */
94 char *user_hostfiles[SSH_MAX_HOSTS_FILES];
95 char *preferred_authentications;
96 char *bind_address; /* local socket address for connection to sshd */
97 char *pkcs11_provider; /* PKCS#11 provider */
98 int verify_host_key_dns; /* Verify host key using DNS */
100 int num_identity_files; /* Number of files for RSA/DSA identities. */
101 char *identity_files[SSH_MAX_IDENTITY_FILES];
102 Key *identity_keys[SSH_MAX_IDENTITY_FILES];
104 /* Local TCP/IP forward requests. */
105 int num_local_forwards;
106 Forward *local_forwards;
108 /* Remote TCP/IP forward requests. */
109 int num_remote_forwards;
110 Forward *remote_forwards;
111 int clear_forwardings;
113 int enable_ssh_keysign;
115 int none_switch; /* Use none cipher */
116 int none_enabled; /* Allow none to be used */
117 int no_host_authentication_for_localhost;
119 int server_alive_interval;
120 int server_alive_count_max;
123 char *send_env[MAX_SEND_ENV];
127 int control_persist; /* ControlPersist flag */
128 int control_persist_timeout; /* ControlPersist timeout (seconds) */
130 int hash_known_hosts;
132 int tun_open; /* tun(4) */
133 int tun_local; /* force tun device (optional) */
134 int tun_remote; /* force tun device (optional) */
137 int permit_local_command;
145 #define SSHCTL_MASTER_NO 0
146 #define SSHCTL_MASTER_YES 1
147 #define SSHCTL_MASTER_AUTO 2
148 #define SSHCTL_MASTER_ASK 3
149 #define SSHCTL_MASTER_AUTO_ASK 4
151 #define REQUEST_TTY_AUTO 0
152 #define REQUEST_TTY_NO 1
153 #define REQUEST_TTY_YES 2
154 #define REQUEST_TTY_FORCE 3
156 void initialize_options(Options *);
157 void fill_default_options(Options *);
158 int read_config_file(const char *, const char *, Options *, int);
159 int parse_forward(Forward *, const char *, int, int);
162 process_config_line(Options *, const char *, char *, const char *, int, int *);
164 void add_local_forward(Options *, const Forward *);
165 void add_remote_forward(Options *, const Forward *);
167 #endif /* READCONF_H */