222 lines
7.8 KiB
C
222 lines
7.8 KiB
C
/* $OpenBSD: readconf.h,v 1.125 2018/02/23 02:34:33 djm Exp $ */
|
|
/* $FreeBSD$ */
|
|
|
|
/*
|
|
* 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 option data. */
|
|
|
|
#define MAX_SEND_ENV 256
|
|
#define SSH_MAX_HOSTS_FILES 32
|
|
#define MAX_CANON_DOMAINS 32
|
|
#define PATH_MAX_SUN (sizeof((struct sockaddr_un *)0)->sun_path)
|
|
|
|
struct allowed_cname {
|
|
char *source_list;
|
|
char *target_list;
|
|
};
|
|
|
|
typedef struct {
|
|
int forward_agent; /* Forward authentication agent. */
|
|
int forward_x11; /* Forward X11 display. */
|
|
int forward_x11_timeout; /* Expiration for Cookies */
|
|
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 */
|
|
struct ForwardOptions fwd_opts; /* forwarding options */
|
|
int use_privileged_port; /* Don't use privileged port if false. */
|
|
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_deleg_creds; /* Delegate GSS credentials */
|
|
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 tcp_keep_alive; /* Set SO_KEEPALIVE. */
|
|
int ip_qos_interactive; /* IP ToS/DSCP/class for interactive */
|
|
int ip_qos_bulk; /* IP ToS/DSCP/class for bulk traffic */
|
|
SyslogFacility log_facility; /* Facility for system logging. */
|
|
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. */
|
|
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. */
|
|
char *kex_algorithms; /* SSH2 kex methods 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 escape_char; /* Escape character; -2 = none */
|
|
|
|
u_int num_system_hostfiles; /* Paths for /etc/ssh/ssh_known_hosts */
|
|
char *system_hostfiles[SSH_MAX_HOSTS_FILES];
|
|
u_int num_user_hostfiles; /* Path for $HOME/.ssh/known_hosts */
|
|
char *user_hostfiles[SSH_MAX_HOSTS_FILES];
|
|
char *preferred_authentications;
|
|
char *bind_address; /* local socket address for connection to sshd */
|
|
char *bind_interface; /* local interface for bind address */
|
|
char *pkcs11_provider; /* PKCS#11 provider */
|
|
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];
|
|
int identity_file_userprovided[SSH_MAX_IDENTITY_FILES];
|
|
struct sshkey *identity_keys[SSH_MAX_IDENTITY_FILES];
|
|
|
|
int num_certificate_files; /* Number of extra certificates for ssh. */
|
|
char *certificate_files[SSH_MAX_CERTIFICATE_FILES];
|
|
int certificate_file_userprovided[SSH_MAX_CERTIFICATE_FILES];
|
|
struct sshkey *certificates[SSH_MAX_CERTIFICATE_FILES];
|
|
|
|
int add_keys_to_agent;
|
|
char *identity_agent; /* Optional path to ssh-agent socket */
|
|
|
|
/* Local TCP/IP forward requests. */
|
|
int num_local_forwards;
|
|
struct Forward *local_forwards;
|
|
|
|
/* Remote TCP/IP forward requests. */
|
|
int num_remote_forwards;
|
|
struct Forward *remote_forwards;
|
|
int clear_forwardings;
|
|
|
|
/* stdio forwarding (-W) host and port */
|
|
char *stdio_forward_host;
|
|
int stdio_forward_port;
|
|
|
|
int enable_ssh_keysign;
|
|
int64_t rekey_limit;
|
|
int rekey_interval;
|
|
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 control_persist; /* ControlPersist flag */
|
|
int control_persist_timeout; /* ControlPersist timeout (seconds) */
|
|
|
|
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;
|
|
char *remote_command;
|
|
int visual_host_key;
|
|
|
|
int request_tty;
|
|
|
|
int proxy_use_fdpass;
|
|
|
|
int num_canonical_domains;
|
|
char *canonical_domains[MAX_CANON_DOMAINS];
|
|
int canonicalize_hostname;
|
|
int canonicalize_max_dots;
|
|
int canonicalize_fallback_local;
|
|
int num_permitted_cnames;
|
|
struct allowed_cname permitted_cnames[MAX_CANON_DOMAINS];
|
|
|
|
char *revoked_host_keys;
|
|
|
|
int fingerprint_hash;
|
|
|
|
int update_hostkeys; /* one of SSH_UPDATE_HOSTKEYS_* */
|
|
|
|
char *hostbased_key_types;
|
|
char *pubkey_key_types;
|
|
|
|
char *version_addendum; /* Appended to SSH banner */
|
|
|
|
char *jump_user;
|
|
char *jump_host;
|
|
int jump_port;
|
|
char *jump_extra;
|
|
|
|
char *ignored_unknown; /* Pattern list of unknown tokens to ignore */
|
|
} Options;
|
|
|
|
#define SSH_CANONICALISE_NO 0
|
|
#define SSH_CANONICALISE_YES 1
|
|
#define SSH_CANONICALISE_ALWAYS 2
|
|
|
|
#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
|
|
|
|
#define REQUEST_TTY_AUTO 0
|
|
#define REQUEST_TTY_NO 1
|
|
#define REQUEST_TTY_YES 2
|
|
#define REQUEST_TTY_FORCE 3
|
|
|
|
#define SSHCONF_CHECKPERM 1 /* check permissions on config file */
|
|
#define SSHCONF_USERCONF 2 /* user provided config file not system */
|
|
#define SSHCONF_POSTCANON 4 /* After hostname canonicalisation */
|
|
#define SSHCONF_NEVERMATCH 8 /* Match/Host never matches; internal only */
|
|
|
|
#define SSH_UPDATE_HOSTKEYS_NO 0
|
|
#define SSH_UPDATE_HOSTKEYS_YES 1
|
|
#define SSH_UPDATE_HOSTKEYS_ASK 2
|
|
|
|
#define SSH_STRICT_HOSTKEY_OFF 0
|
|
#define SSH_STRICT_HOSTKEY_NEW 1
|
|
#define SSH_STRICT_HOSTKEY_YES 2
|
|
#define SSH_STRICT_HOSTKEY_ASK 3
|
|
|
|
void initialize_options(Options *);
|
|
void fill_default_options(Options *);
|
|
void fill_default_options_for_canonicalization(Options *);
|
|
int process_config_line(Options *, struct passwd *, const char *,
|
|
const char *, char *, const char *, int, int *, int);
|
|
int read_config_file(const char *, struct passwd *, const char *,
|
|
const char *, Options *, int);
|
|
int parse_forward(struct Forward *, const char *, int, int);
|
|
int parse_jump(const char *, Options *, int);
|
|
int parse_ssh_uri(const char *, char **, char **, int *);
|
|
int default_ssh_port(void);
|
|
int option_clear_or_none(const char *);
|
|
void dump_client_config(Options *o, const char *host);
|
|
|
|
void add_local_forward(Options *, const struct Forward *);
|
|
void add_remote_forward(Options *, const struct Forward *);
|
|
void add_identity_file(Options *, const char *, const char *, int);
|
|
void add_certificate_file(Options *, const char *, int);
|
|
|
|
#endif /* READCONF_H */
|