/* $OpenBSD: readconf.h,v 1.93 2013/02/22 04:45:09 dtucker Exp $ */ /* * Author: Tatu Ylonen * Copyright (c) 1995 Tatu Ylonen , 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 a forwarding request. */ typedef struct { char *listen_host; /* Host (address) to listen on. */ int listen_port; /* Port to forward. */ char *connect_host; /* Host to connect. */ int connect_port; /* Port to connect on connect_host. */ int allocated_port; /* Dynamically allocated listen port */ int handle; /* Handle for dynamic listen ports */ } Forward; /* Data structure for representing option data. */ #define MAX_SEND_ENV 256 #define SSH_MAX_HOSTS_FILES 256 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 */ int gateway_ports; /* Allow remote connects to forwarded ports. */ int use_privileged_port; /* Don't use privileged port if false. */ int rhosts_rsa_authentication; /* Try rhosts with RSA * authentication. */ int rsa_authentication; /* Try RSA authentication. */ 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_keyex; /* Try GSS key exchange */ int gss_deleg_creds; /* Delegate GSS credentials */ int gss_trust_dns; /* Trust DNS for GSS canonicalization */ int gss_renewal_rekey; /* Credential renewal forces rekey */ char *gss_client_identity; /* Principal to initiate GSSAPI with */ char *gss_server_identity; /* GSSAPI target principal */ int password_authentication; /* Try password * authentication. */ int kbd_interactive_authentication; /* Try keyboard-interactive auth. */ char *kbd_interactive_devices; /* Keyboard-interactive auth devices. */ int zero_knowledge_password_authentication; /* Try jpake */ 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 compression_level; /* Compression level 1 (fast) to 9 * (best). */ 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 */ 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. */ int cipher; /* Cipher to use. */ 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. */ int protocol; /* Protocol 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 *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]; Key *identity_keys[SSH_MAX_IDENTITY_FILES]; /* Local TCP/IP forward requests. */ int num_local_forwards; Forward *local_forwards; /* Remote TCP/IP forward requests. */ int num_remote_forwards; Forward *remote_forwards; int clear_forwardings; int enable_ssh_keysign; int64_t rekey_limit; 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; int visual_host_key; int use_roaming; int request_tty; } Options; #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 */ void initialize_options(Options *); void fill_default_options(Options *); int read_config_file(const char *, const char *, Options *, int); int parse_forward(Forward *, const char *, int, int); int process_config_line(Options *, const char *, char *, const char *, int, int *, int); void add_local_forward(Options *, const Forward *); void add_remote_forward(Options *, const Forward *); void add_identity_file(Options *, const char *, const char *, int); #endif /* READCONF_H */