5 * Author: Tatu Ylonen <ylo@cs.hut.fi>
7 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
10 * Created: Sat Apr 22 00:25:29 1995 ylo
12 * Functions for reading the configuration file.
21 /* Data structure for representing a forwarding request. */
24 u_short port; /* Port to forward. */
25 char *host; /* Host to connect. */
26 u_short host_port; /* Port to connect on host. */
28 /* Data structure for representing option data. */
31 int forward_agent; /* Forward authentication agent. */
32 int forward_x11; /* Forward X11 display. */
33 int gateway_ports; /* Allow remote connects to forwarded ports. */
34 int use_privileged_port; /* Don't use privileged port if false. */
35 int rhosts_authentication; /* Try rhosts authentication. */
36 int rhosts_rsa_authentication; /* Try rhosts with RSA
38 int rsa_authentication; /* Try RSA authentication. */
39 int skey_authentication; /* Try S/Key or TIS authentication. */
41 int kerberos_authentication; /* Try Kerberos
45 int kerberos_tgt_passing; /* Try Kerberos tgt passing. */
46 int afs_token_passing; /* Try AFS token passing. */
48 int password_authentication; /* Try password
50 int fallback_to_rsh;/* Use rsh if cannot connect with ssh. */
51 int use_rsh; /* Always use rsh (don\'t try ssh). */
52 int batch_mode; /* Batch mode: do not ask for passwords. */
53 int check_host_ip; /* Also keep track of keys for IP address */
54 int strict_host_key_checking; /* Strict host key checking. */
55 int compression; /* Compress packets in both directions. */
56 int compression_level; /* Compression level 1 (fast) to 9
58 int keepalives; /* Set SO_KEEPALIVE. */
59 LogLevel log_level; /* Level for logging. */
61 int port; /* Port to connect. */
62 int connection_attempts; /* Max attempts (seconds) before
64 int number_of_password_prompts; /* Max number of password
66 int cipher; /* Cipher to use. */
67 char *ciphers; /* Ciphers in order of preference. */
68 int protocol; /* Protocol in order of preference. */
69 char *hostname; /* Real host to connect. */
70 char *proxy_command; /* Proxy command for connecting the host. */
71 char *user; /* User to log in as. */
72 int escape_char; /* Escape character; -2 = none */
74 char *system_hostfile;/* Path for /etc/ssh_known_hosts. */
75 char *user_hostfile; /* Path for $HOME/.ssh/known_hosts. */
77 int num_identity_files; /* Number of files for RSA identities. */
78 char *identity_files[SSH_MAX_IDENTITY_FILES];
80 /* Local TCP/IP forward requests. */
81 int num_local_forwards;
82 Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
84 /* Remote TCP/IP forward requests. */
85 int num_remote_forwards;
86 Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
91 * Initializes options to special values that indicate that they have not yet
92 * been set. Read_config_file will only set options with this value. Options
93 * are processed in the following order: command line, user config file,
94 * system config file. Last, fill_default_options is called.
96 void initialize_options(Options * options);
99 * Called after processing other sources of option data, this fills those
100 * options for which no value has been specified with their default values.
102 void fill_default_options(Options * options);
105 * Processes a single option line as used in the configuration files. This
106 * only sets those values that have not already been set. Returns 0 for legal
110 process_config_line(Options * options, const char *host,
111 char *line, const char *filename, int linenum,
115 * Reads the config file and modifies the options accordingly. Options
116 * should already be initialized before this call. This never returns if
117 * there is an error. If the file does not exist, this returns immediately.
120 read_config_file(const char *filename, const char *host,
124 * Adds a local TCP/IP port forward to options. Never returns if there is an
128 add_local_forward(Options * options, u_short port, const char *host,
132 * Adds a remote TCP/IP port forward to options. Never returns if there is
136 add_remote_forward(Options * options, u_short port, const char *host,
139 #endif /* READCONF_H */