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8efc0c15 | 1 | /* |
5260325f | 2 | * |
3 | * readconf.h | |
4 | * | |
5 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | |
6 | * | |
7 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
8 | * All rights reserved | |
9 | * | |
10 | * Created: Sat Apr 22 00:25:29 1995 ylo | |
11 | * | |
12 | * Functions for reading the configuration file. | |
13 | * | |
14 | */ | |
8efc0c15 | 15 | |
16 | /* RCSID("$Id$"); */ | |
17 | ||
18 | #ifndef READCONF_H | |
19 | #define READCONF_H | |
20 | ||
21 | /* Data structure for representing a forwarding request. */ | |
22 | ||
5260325f | 23 | typedef struct { |
57112b5a | 24 | u_short port; /* Port to forward. */ |
25 | char *host; /* Host to connect. */ | |
26 | u_short host_port; /* Port to connect on host. */ | |
5260325f | 27 | } Forward; |
8efc0c15 | 28 | /* Data structure for representing option data. */ |
29 | ||
5260325f | 30 | typedef struct { |
31 | int forward_agent; /* Forward authentication agent. */ | |
32 | int forward_x11; /* Forward X11 display. */ | |
33 | int gateway_ports; /* Allow remote connects to forwarded ports. */ | |
34 | int use_privileged_port; /* Don't use privileged port if false. */ | |
35 | int rhosts_authentication; /* Try rhosts authentication. */ | |
36 | int rhosts_rsa_authentication; /* Try rhosts with RSA | |
37 | * authentication. */ | |
38 | int rsa_authentication; /* Try RSA authentication. */ | |
39 | int skey_authentication; /* Try S/Key or TIS authentication. */ | |
8efc0c15 | 40 | #ifdef KRB4 |
5260325f | 41 | int kerberos_authentication; /* Try Kerberos |
42 | * authentication. */ | |
8efc0c15 | 43 | #endif |
44 | #ifdef AFS | |
5260325f | 45 | int kerberos_tgt_passing; /* Try Kerberos tgt passing. */ |
46 | int afs_token_passing; /* Try AFS token passing. */ | |
8efc0c15 | 47 | #endif |
5260325f | 48 | int password_authentication; /* Try password |
49 | * authentication. */ | |
50 | int fallback_to_rsh;/* Use rsh if cannot connect with ssh. */ | |
51 | int use_rsh; /* Always use rsh (don\'t try ssh). */ | |
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 keepalives; /* Set SO_KEEPALIVE. */ | |
59 | LogLevel log_level; /* Level for logging. */ | |
60 | ||
61 | int port; /* Port to connect. */ | |
62 | int connection_attempts; /* Max attempts (seconds) before | |
63 | * giving up */ | |
64 | int number_of_password_prompts; /* Max number of password | |
65 | * prompts. */ | |
66 | int cipher; /* Cipher to use. */ | |
a8be9f80 | 67 | char *ciphers; /* Ciphers in order of preference. */ |
68 | int protocol; /* Protocol in order of preference. */ | |
5260325f | 69 | char *hostname; /* Real host to connect. */ |
70 | char *proxy_command; /* Proxy command for connecting the host. */ | |
71 | char *user; /* User to log in as. */ | |
72 | int escape_char; /* Escape character; -2 = none */ | |
73 | ||
74 | char *system_hostfile;/* Path for /etc/ssh_known_hosts. */ | |
75 | char *user_hostfile; /* Path for $HOME/.ssh/known_hosts. */ | |
76 | ||
77 | int num_identity_files; /* Number of files for RSA identities. */ | |
78 | char *identity_files[SSH_MAX_IDENTITY_FILES]; | |
79 | ||
80 | /* Local TCP/IP forward requests. */ | |
81 | int num_local_forwards; | |
82 | Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; | |
83 | ||
84 | /* Remote TCP/IP forward requests. */ | |
85 | int num_remote_forwards; | |
86 | Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; | |
87 | } Options; | |
8efc0c15 | 88 | |
89 | ||
aa3378df | 90 | /* |
91 | * Initializes options to special values that indicate that they have not yet | |
92 | * been set. Read_config_file will only set options with this value. Options | |
93 | * are processed in the following order: command line, user config file, | |
94 | * system config file. Last, fill_default_options is called. | |
95 | */ | |
5260325f | 96 | void initialize_options(Options * options); |
8efc0c15 | 97 | |
aa3378df | 98 | /* |
99 | * Called after processing other sources of option data, this fills those | |
100 | * options for which no value has been specified with their default values. | |
101 | */ | |
5260325f | 102 | void fill_default_options(Options * options); |
8efc0c15 | 103 | |
aa3378df | 104 | /* |
105 | * Processes a single option line as used in the configuration files. This | |
106 | * only sets those values that have not already been set. Returns 0 for legal | |
107 | * options | |
108 | */ | |
5260325f | 109 | int |
110 | process_config_line(Options * options, const char *host, | |
111 | char *line, const char *filename, int linenum, | |
112 | int *activep); | |
8efc0c15 | 113 | |
aa3378df | 114 | /* |
115 | * Reads the config file and modifies the options accordingly. Options | |
116 | * should already be initialized before this call. This never returns if | |
117 | * there is an error. If the file does not exist, this returns immediately. | |
118 | */ | |
5260325f | 119 | void |
120 | read_config_file(const char *filename, const char *host, | |
121 | Options * options); | |
8efc0c15 | 122 | |
aa3378df | 123 | /* |
124 | * Adds a local TCP/IP port forward to options. Never returns if there is an | |
125 | * error. | |
126 | */ | |
5260325f | 127 | void |
57112b5a | 128 | add_local_forward(Options * options, u_short port, const char *host, |
129 | u_short host_port); | |
8efc0c15 | 130 | |
aa3378df | 131 | /* |
132 | * Adds a remote TCP/IP port forward to options. Never returns if there is | |
133 | * an error. | |
134 | */ | |
5260325f | 135 | void |
57112b5a | 136 | add_remote_forward(Options * options, u_short port, const char *host, |
137 | u_short host_port); | |
8efc0c15 | 138 | |
5260325f | 139 | #endif /* READCONF_H */ |