1 /* $OpenBSD: readconf.h,v 1.71 2006/08/03 03:34:42 deraadt Exp $ */ 2 3 /* 4 * Author: Tatu Ylonen <ylo@cs.hut.fi> 5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 6 * All rights reserved 7 * Functions for reading the configuration file. 8 * 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". 14 */ 15 16 #ifndef READCONF_H 17 #define READCONF_H 18 19 /* Data structure for representing a forwarding request. */ 20 21 typedef struct { 22 char *listen_host; /* Host (address) to listen on. */ 23 u_short listen_port; /* Port to forward. */ 24 char *connect_host; /* Host to connect. */ 25 u_short connect_port; /* Port to connect on connect_host. */ 26 } Forward; 27 /* Data structure for representing option data. */ 28 29 #define MAX_SEND_ENV 256 30 31 typedef struct { 32 int forward_agent; /* Forward authentication agent. */ 33 int forward_x11; /* Forward X11 display. */ 34 int forward_x11_trusted; /* Trust Forward X11 display. */ 35 int exit_on_forward_failure; /* Exit if bind(2) fails for -L/-R */ 36 char *xauth_location; /* Location for xauth program */ 37 int gateway_ports; /* Allow remote connects to forwarded ports. */ 38 int use_privileged_port; /* Don't use privileged port if false. */ 39 int rhosts_rsa_authentication; /* Try rhosts with RSA 40 * authentication. */ 41 int rsa_authentication; /* Try RSA authentication. */ 42 int pubkey_authentication; /* Try ssh2 pubkey authentication. */ 43 int hostbased_authentication; /* ssh2's rhosts_rsa */ 44 int challenge_response_authentication; 45 /* Try S/Key or TIS, authentication. */ 46 int gss_authentication; /* Try GSS authentication */ 47 int gss_deleg_creds; /* Delegate GSS credentials */ 48 int password_authentication; /* Try password 49 * authentication. */ 50 int kbd_interactive_authentication; /* Try keyboard-interactive auth. */ 51 char *kbd_interactive_devices; /* Keyboard-interactive auth devices. */ 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 57 * (best). */ 58 int tcp_keep_alive; /* Set SO_KEEPALIVE. */ 59 LogLevel log_level; /* Level for logging. */ 60 61 int port; /* Port to connect. */ 62 int address_family; 63 int connection_attempts; /* Max attempts (seconds) before 64 * giving up */ 65 int connection_timeout; /* Max time (seconds) before 66 * aborting connection attempt */ 67 int number_of_password_prompts; /* Max number of password 68 * prompts. */ 69 int cipher; /* Cipher to use. */ 70 char *ciphers; /* SSH2 ciphers in order of preference. */ 71 char *macs; /* SSH2 macs in order of preference. */ 72 char *hostkeyalgorithms; /* SSH2 server key types in order of preference. */ 73 int protocol; /* Protocol in order of preference. */ 74 char *hostname; /* Real host to connect. */ 75 char *host_key_alias; /* hostname alias for .ssh/known_hosts */ 76 char *proxy_command; /* Proxy command for connecting the host. */ 77 char *user; /* User to log in as. */ 78 int escape_char; /* Escape character; -2 = none */ 79 80 char *system_hostfile;/* Path for /etc/ssh/ssh_known_hosts. */ 81 char *user_hostfile; /* Path for $HOME/.ssh/known_hosts. */ 82 char *system_hostfile2; 83 char *user_hostfile2; 84 char *preferred_authentications; 85 char *bind_address; /* local socket address for connection to sshd */ 86 char *smartcard_device; /* Smartcard reader device */ 87 int verify_host_key_dns; /* Verify host key using DNS */ 88 89 int num_identity_files; /* Number of files for RSA/DSA identities. */ 90 char *identity_files[SSH_MAX_IDENTITY_FILES]; 91 Key *identity_keys[SSH_MAX_IDENTITY_FILES]; 92 93 /* Local TCP/IP forward requests. */ 94 int num_local_forwards; 95 Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; 96 97 /* Remote TCP/IP forward requests. */ 98 int num_remote_forwards; 99 Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; 100 int clear_forwardings; 101 102 int enable_ssh_keysign; 103 int rekey_limit; 104 int no_host_authentication_for_localhost; 105 int identities_only; 106 int server_alive_interval; 107 int server_alive_count_max; 108 109 int num_send_env; 110 char *send_env[MAX_SEND_ENV]; 111 112 char *control_path; 113 int control_master; 114 115 int hash_known_hosts; 116 117 int tun_open; /* tun(4) */ 118 int tun_local; /* force tun device (optional) */ 119 int tun_remote; /* force tun device (optional) */ 120 121 char *local_command; 122 int permit_local_command; 123 124 } Options; 125 126 #define SSHCTL_MASTER_NO 0 127 #define SSHCTL_MASTER_YES 1 128 #define SSHCTL_MASTER_AUTO 2 129 #define SSHCTL_MASTER_ASK 3 130 #define SSHCTL_MASTER_AUTO_ASK 4 131 132 void initialize_options(Options *); 133 void fill_default_options(Options *); 134 int read_config_file(const char *, const char *, Options *, int); 135 int parse_forward(Forward *, const char *); 136 137 int 138 process_config_line(Options *, const char *, char *, const char *, int, int *); 139 140 void add_local_forward(Options *, const Forward *); 141 void add_remote_forward(Options *, const Forward *); 142 143 #endif /* READCONF_H */ 144