1 /* $OpenBSD: readconf.h,v 1.86 2010/07/19 09:15:12 djm 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 int listen_port; /* Port to forward. */ 24 char *connect_host; /* Host to connect. */ 25 int connect_port; /* Port to connect on connect_host. */ 26 int allocated_port; /* Dynamically allocated listen port */ 27 } Forward; 28 /* Data structure for representing option data. */ 29 30 #define MAX_SEND_ENV 256 31 32 typedef struct { 33 int forward_agent; /* Forward authentication agent. */ 34 int forward_x11; /* Forward X11 display. */ 35 int forward_x11_timeout; /* Expiration for Cookies */ 36 int forward_x11_trusted; /* Trust Forward X11 display. */ 37 int exit_on_forward_failure; /* Exit if bind(2) fails for -L/-R */ 38 char *xauth_location; /* Location for xauth program */ 39 int gateway_ports; /* Allow remote connects to forwarded ports. */ 40 int use_privileged_port; /* Don't use privileged port if false. */ 41 int rhosts_rsa_authentication; /* Try rhosts with RSA 42 * authentication. */ 43 int rsa_authentication; /* Try RSA authentication. */ 44 int pubkey_authentication; /* Try ssh2 pubkey authentication. */ 45 int hostbased_authentication; /* ssh2's rhosts_rsa */ 46 int challenge_response_authentication; 47 /* Try S/Key or TIS, authentication. */ 48 int gss_authentication; /* Try GSS authentication */ 49 int gss_deleg_creds; /* Delegate GSS credentials */ 50 int password_authentication; /* Try password 51 * authentication. */ 52 int kbd_interactive_authentication; /* Try keyboard-interactive auth. */ 53 char *kbd_interactive_devices; /* Keyboard-interactive auth devices. */ 54 int zero_knowledge_password_authentication; /* Try jpake */ 55 int batch_mode; /* Batch mode: do not ask for passwords. */ 56 int check_host_ip; /* Also keep track of keys for IP address */ 57 int strict_host_key_checking; /* Strict host key checking. */ 58 int compression; /* Compress packets in both directions. */ 59 int compression_level; /* Compression level 1 (fast) to 9 60 * (best). */ 61 int tcp_keep_alive; /* Set SO_KEEPALIVE. */ 62 int tcp_rcv_buf; /* user switch to set tcp recv buffer */ 63 int tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */ 64 int hpn_disabled; /* Switch to disable HPN buffer management */ 65 int hpn_buffer_size; /* User definable size for HPN buffer window */ 66 67 LogLevel log_level; /* Level for logging. */ 68 69 int port; /* Port to connect. */ 70 int address_family; 71 int connection_attempts; /* Max attempts (seconds) before 72 * giving up */ 73 int connection_timeout; /* Max time (seconds) before 74 * aborting connection attempt */ 75 int number_of_password_prompts; /* Max number of password 76 * prompts. */ 77 int cipher; /* Cipher to use. */ 78 char *ciphers; /* SSH2 ciphers in order of preference. */ 79 char *macs; /* SSH2 macs in order of preference. */ 80 char *hostkeyalgorithms; /* SSH2 server key types in order of preference. */ 81 int protocol; /* Protocol in order of preference. */ 82 char *hostname; /* Real host to connect. */ 83 char *host_key_alias; /* hostname alias for .ssh/known_hosts */ 84 char *proxy_command; /* Proxy command for connecting the host. */ 85 char *user; /* User to log in as. */ 86 int escape_char; /* Escape character; -2 = none */ 87 88 char *system_hostfile;/* Path for /etc/ssh/ssh_known_hosts. */ 89 char *user_hostfile; /* Path for $HOME/.ssh/known_hosts. */ 90 char *system_hostfile2; 91 char *user_hostfile2; 92 char *preferred_authentications; 93 char *bind_address; /* local socket address for connection to sshd */ 94 char *pkcs11_provider; /* PKCS#11 provider */ 95 int verify_host_key_dns; /* Verify host key using DNS */ 96 97 int num_identity_files; /* Number of files for RSA/DSA identities. */ 98 char *identity_files[SSH_MAX_IDENTITY_FILES]; 99 Key *identity_keys[SSH_MAX_IDENTITY_FILES]; 100 101 /* Local TCP/IP forward requests. */ 102 int num_local_forwards; 103 Forward *local_forwards; 104 105 /* Remote TCP/IP forward requests. */ 106 int num_remote_forwards; 107 Forward *remote_forwards; 108 int clear_forwardings; 109 110 int enable_ssh_keysign; 111 int64_t rekey_limit; 112 int none_switch; /* Use none cipher */ 113 int none_enabled; /* Allow none to be used */ 114 int no_host_authentication_for_localhost; 115 int identities_only; 116 int server_alive_interval; 117 int server_alive_count_max; 118 119 int num_send_env; 120 char *send_env[MAX_SEND_ENV]; 121 122 char *control_path; 123 int control_master; 124 int control_persist; /* ControlPersist flag */ 125 int control_persist_timeout; /* ControlPersist timeout (seconds) */ 126 127 int hash_known_hosts; 128 129 int tun_open; /* tun(4) */ 130 int tun_local; /* force tun device (optional) */ 131 int tun_remote; /* force tun device (optional) */ 132 133 char *local_command; 134 int permit_local_command; 135 int visual_host_key; 136 137 int use_roaming; 138 139 } Options; 140 141 #define SSHCTL_MASTER_NO 0 142 #define SSHCTL_MASTER_YES 1 143 #define SSHCTL_MASTER_AUTO 2 144 #define SSHCTL_MASTER_ASK 3 145 #define SSHCTL_MASTER_AUTO_ASK 4 146 147 void initialize_options(Options *); 148 void fill_default_options(Options *); 149 int read_config_file(const char *, const char *, Options *, int); 150 int parse_forward(Forward *, const char *, int, int); 151 152 int 153 process_config_line(Options *, const char *, char *, const char *, int, int *); 154 155 void add_local_forward(Options *, const Forward *); 156 void add_remote_forward(Options *, const Forward *); 157 158 #endif /* READCONF_H */ 159