1 /* $NetBSD: readconf.h,v 1.3 2009/12/27 01:40:47 christos Exp $ */ 2 /* $OpenBSD: readconf.h,v 1.79 2009/06/27 09:35:06 andreas Exp $ */ 3 4 /* 5 * Author: Tatu Ylonen <ylo@cs.hut.fi> 6 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 7 * All rights reserved 8 * Functions for reading the configuration file. 9 * 10 * As far as I am concerned, the code I have written for this software 11 * can be used freely for any purpose. Any derived versions of this 12 * software must be clearly marked as such, and if the derived work is 13 * incompatible with the protocol description in the RFC file, it must be 14 * called by a name other than "ssh" or "Secure Shell". 15 */ 16 17 #ifndef READCONF_H 18 #define READCONF_H 19 20 /* Data structure for representing a forwarding request. */ 21 22 typedef struct { 23 char *listen_host; /* Host (address) to listen on. */ 24 int listen_port; /* Port to forward. */ 25 char *connect_host; /* Host to connect. */ 26 int connect_port; /* Port to connect on connect_host. */ 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_trusted; /* Trust Forward X11 display. */ 36 int exit_on_forward_failure; /* Exit if bind(2) fails for -L/-R */ 37 char *xauth_location; /* Location for xauth program */ 38 int gateway_ports; /* Allow remote connects to forwarded ports. */ 39 int use_privileged_port; /* Don't use privileged port if false. */ 40 int rhosts_rsa_authentication; /* Try rhosts with RSA 41 * authentication. */ 42 int rsa_authentication; /* Try RSA authentication. */ 43 int pubkey_authentication; /* Try ssh2 pubkey authentication. */ 44 int hostbased_authentication; /* ssh2's rhosts_rsa */ 45 int challenge_response_authentication; 46 #if defined(KRB4) || defined(KRB5) 47 int kerberos_authentication; /* Try Kerberos authentication. */ 48 #endif 49 #if defined(AFS) || defined(KRB5) 50 int kerberos_tgt_passing; /* Try Kerberos TGT passing. */ 51 #endif 52 #ifdef AFS 53 int afs_token_passing; /* Try AFS token passing. */ 54 #endif 55 /* Try S/Key or TIS, authentication. */ 56 int gss_authentication; /* Try GSS authentication */ 57 int gss_deleg_creds; /* Delegate GSS credentials */ 58 int password_authentication; /* Try password 59 * authentication. */ 60 int kbd_interactive_authentication; /* Try keyboard-interactive auth. */ 61 char *kbd_interactive_devices; /* Keyboard-interactive auth devices. */ 62 int zero_knowledge_password_authentication; /* Try jpake */ 63 int batch_mode; /* Batch mode: do not ask for passwords. */ 64 int check_host_ip; /* Also keep track of keys for IP address */ 65 int strict_host_key_checking; /* Strict host key checking. */ 66 int compression; /* Compress packets in both directions. */ 67 int compression_level; /* Compression level 1 (fast) to 9 68 * (best). */ 69 int tcp_keep_alive; /* Set SO_KEEPALIVE. */ 70 int tcp_rcv_buf; /* user switch to set tcp recv buffer */ 71 int tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */ 72 int hpn_disabled; /* Switch to disable HPN buffer management */ 73 int hpn_buffer_size; /* User definable size for HPN buffer window */ 74 75 LogLevel log_level; /* Level for logging. */ 76 77 int port; /* Port to connect. */ 78 int address_family; 79 int connection_attempts; /* Max attempts (seconds) before 80 * giving up */ 81 int connection_timeout; /* Max time (seconds) before 82 * aborting connection attempt */ 83 int number_of_password_prompts; /* Max number of password 84 * prompts. */ 85 int cipher; /* Cipher to use. */ 86 char *ciphers; /* SSH2 ciphers in order of preference. */ 87 char *macs; /* SSH2 macs in order of preference. */ 88 char *hostkeyalgorithms; /* SSH2 server key types in order of preference. */ 89 int protocol; /* Protocol in order of preference. */ 90 char *hostname; /* Real host to connect. */ 91 char *host_key_alias; /* hostname alias for .ssh/known_hosts */ 92 char *proxy_command; /* Proxy command for connecting the host. */ 93 char *user; /* User to log in as. */ 94 int escape_char; /* Escape character; -2 = none */ 95 96 char *system_hostfile;/* Path for /etc/ssh/ssh_known_hosts. */ 97 char *user_hostfile; /* Path for $HOME/.ssh/known_hosts. */ 98 char *system_hostfile2; 99 char *user_hostfile2; 100 char *preferred_authentications; 101 char *bind_address; /* local socket address for connection to sshd */ 102 char *smartcard_device; /* Smartcard reader device */ 103 int verify_host_key_dns; /* Verify host key using DNS */ 104 105 int num_identity_files; /* Number of files for RSA/DSA identities. */ 106 char *identity_files[SSH_MAX_IDENTITY_FILES]; 107 Key *identity_keys[SSH_MAX_IDENTITY_FILES]; 108 109 /* Local TCP/IP forward requests. */ 110 int num_local_forwards; 111 Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; 112 113 /* Remote TCP/IP forward requests. */ 114 int num_remote_forwards; 115 Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; 116 int clear_forwardings; 117 118 int enable_ssh_keysign; 119 int64_t rekey_limit; 120 int none_switch; /* Use none cipher */ 121 int none_enabled; /* Allow none to be used */ 122 int no_host_authentication_for_localhost; 123 int identities_only; 124 int server_alive_interval; 125 int server_alive_count_max; 126 127 int num_send_env; 128 char *send_env[MAX_SEND_ENV]; 129 130 char *control_path; 131 int control_master; 132 133 int hash_known_hosts; 134 135 int tun_open; /* tun(4) */ 136 int tun_local; /* force tun device (optional) */ 137 int tun_remote; /* force tun device (optional) */ 138 139 char *local_command; 140 int permit_local_command; 141 int visual_host_key; 142 143 int use_roaming; 144 145 } Options; 146 147 #define SSHCTL_MASTER_NO 0 148 #define SSHCTL_MASTER_YES 1 149 #define SSHCTL_MASTER_AUTO 2 150 #define SSHCTL_MASTER_ASK 3 151 #define SSHCTL_MASTER_AUTO_ASK 4 152 153 void initialize_options(Options *); 154 void fill_default_options(Options *); 155 int read_config_file(const char *, const char *, Options *, int); 156 int parse_forward(Forward *, const char *, int, int); 157 158 int 159 process_config_line(Options *, const char *, char *, const char *, int, int *); 160 161 void add_local_forward(Options *, const Forward *); 162 void add_remote_forward(Options *, const Forward *); 163 164 #endif /* READCONF_H */ 165