cb96ab3672
It is done by using the same ssh messages for v4 and v5 authentication (since the ssh.com does not now anything about v4) and looking at the contents after unpacking it to see if it is v4 or v5. Based on code from Björn Grönvall <bg@sics.se> PR: misc/20504
151 lines
5.4 KiB
C
151 lines
5.4 KiB
C
/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Functions for reading the configuration file.
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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/* RCSID("$OpenBSD: readconf.h,v 1.22 2000/10/11 20:14:39 markus Exp $"); */
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/* $FreeBSD$ */
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#ifndef READCONF_H
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#define READCONF_H
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/* Data structure for representing a forwarding request. */
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typedef struct {
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u_short port; /* Port to forward. */
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char *host; /* Host to connect. */
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u_short host_port; /* Port to connect on host. */
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} Forward;
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/* Data structure for representing option data. */
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typedef struct {
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int forward_agent; /* Forward authentication agent. */
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int forward_x11; /* Forward X11 display. */
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char *xauth_location; /* Location for xauth program */
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int gateway_ports; /* Allow remote connects to forwarded ports. */
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int use_privileged_port; /* Don't use privileged port if false. */
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int rhosts_authentication; /* Try rhosts authentication. */
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int rhosts_rsa_authentication; /* Try rhosts with RSA
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* authentication. */
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int rsa_authentication; /* Try RSA authentication. */
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int dsa_authentication; /* Try DSA authentication. */
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int skey_authentication; /* Try S/Key or TIS authentication. */
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#if defined(KRB4) || defined(KRB5)
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int kerberos_authentication; /* Try Kerberos authentication. */
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#endif
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#ifdef KRB5
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int krb5_tgt_passing;
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#endif /* KRB5 */
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#ifdef AFS
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int krb4_tgt_passing; /* Try Kerberos v4 tgt passing. */
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int afs_token_passing; /* Try AFS token passing. */
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#endif
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int password_authentication; /* Try password
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* authentication. */
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int kbd_interactive_authentication; /* Try keyboard-interactive auth. */
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char *kbd_interactive_devices; /* Keyboard-interactive auth devices. */
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int fallback_to_rsh;/* Use rsh if cannot connect with ssh. */
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int use_rsh; /* Always use rsh (don\'t try ssh). */
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int batch_mode; /* Batch mode: do not ask for passwords. */
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int check_host_ip; /* Also keep track of keys for IP address */
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int strict_host_key_checking; /* Strict host key checking. */
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int compression; /* Compress packets in both directions. */
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int compression_level; /* Compression level 1 (fast) to 9
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* (best). */
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int keepalives; /* Set SO_KEEPALIVE. */
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LogLevel log_level; /* Level for logging. */
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int port; /* Port to connect. */
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int connection_attempts; /* Max attempts (seconds) before
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* giving up */
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int number_of_password_prompts; /* Max number of password
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* prompts. */
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int cipher; /* Cipher to use. */
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char *ciphers; /* SSH2 ciphers in order of preference. */
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int protocol; /* Protocol in order of preference. */
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char *hostname; /* Real host to connect. */
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char *proxy_command; /* Proxy command for connecting the host. */
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char *user; /* User to log in as. */
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int escape_char; /* Escape character; -2 = none */
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char *system_hostfile;/* Path for /etc/ssh_known_hosts. */
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char *user_hostfile; /* Path for $HOME/.ssh/known_hosts. */
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char *system_hostfile2;
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char *user_hostfile2;
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int num_identity_files; /* Number of files for RSA identities. */
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int num_identity_files2; /* DSA identities. */
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char *identity_files[SSH_MAX_IDENTITY_FILES];
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char *identity_files2[SSH_MAX_IDENTITY_FILES];
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/* Local TCP/IP forward requests. */
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int num_local_forwards;
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Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
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/* Remote TCP/IP forward requests. */
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int num_remote_forwards;
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Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION];
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} Options;
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/*
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* Initializes options to special values that indicate that they have not yet
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* been set. Read_config_file will only set options with this value. Options
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* are processed in the following order: command line, user config file,
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* system config file. Last, fill_default_options is called.
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*/
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void initialize_options(Options * options);
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/*
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* Called after processing other sources of option data, this fills those
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* options for which no value has been specified with their default values.
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*/
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void fill_default_options(Options * options);
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/*
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* Processes a single option line as used in the configuration files. This
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* only sets those values that have not already been set. Returns 0 for legal
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* options
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*/
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int
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process_config_line(Options * options, const char *host,
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char *line, const char *filename, int linenum,
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int *activep);
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/*
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* Reads the config file and modifies the options accordingly. Options
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* should already be initialized before this call. This never returns if
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* there is an error. If the file does not exist, this returns immediately.
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*/
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void
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read_config_file(const char *filename, const char *host,
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Options * options);
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/*
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* Adds a local TCP/IP port forward to options. Never returns if there is an
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* error.
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*/
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void
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add_local_forward(Options * options, u_short port, const char *host,
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u_short host_port);
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/*
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* Adds a remote TCP/IP port forward to options. Never returns if there is
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* an error.
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*/
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void
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add_remote_forward(Options * options, u_short port, const char *host,
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u_short host_port);
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#endif /* READCONF_H */
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