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8efc0c15 | 1 | /* |
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 | */ | |
15 | ||
16 | /* RCSID("$Id$"); */ | |
17 | ||
18 | #ifndef READCONF_H | |
19 | #define READCONF_H | |
20 | ||
21 | /* Data structure for representing a forwarding request. */ | |
22 | ||
23 | typedef struct | |
24 | { | |
25 | int port; /* Port to forward. */ | |
26 | char *host; /* Host to connect. */ | |
27 | int host_port; /* Port to connect on host. */ | |
28 | } Forward; | |
29 | ||
30 | /* Data structure for representing option data. */ | |
31 | ||
32 | typedef struct | |
33 | { | |
34 | int forward_agent; /* Forward authentication agent. */ | |
35 | int forward_x11; /* Forward X11 display. */ | |
36 | int gateway_ports; /* Allow remote connects to forwarded ports. */ | |
37 | int use_privileged_port; /* Don't use privileged port if false. */ | |
38 | int rhosts_authentication; /* Try rhosts authentication. */ | |
39 | int rhosts_rsa_authentication;/* Try rhosts with RSA authentication. */ | |
40 | int rsa_authentication; /* Try RSA authentication. */ | |
41 | #ifdef KRB4 | |
42 | int kerberos_authentication; /* Try Kerberos authentication. */ | |
43 | #endif | |
44 | #ifdef AFS | |
45 | int kerberos_tgt_passing; /* Try Kerberos tgt passing. */ | |
46 | int afs_token_passing; /* Try AFS token passing. */ | |
47 | #endif | |
48 | int password_authentication; /* Try password authentication. */ | |
49 | int fallback_to_rsh; /* Use rsh if cannot connect with ssh. */ | |
50 | int use_rsh; /* Always use rsh (don\'t try ssh). */ | |
51 | int batch_mode; /* Batch mode: do not ask for passwords. */ | |
52 | int check_host_ip; /* Also keep track of keys for IP address */ | |
53 | int strict_host_key_checking; /* Strict host key checking. */ | |
54 | int compression; /* Compress packets in both directions. */ | |
55 | int compression_level; /* Compression level 1 (fast) to 9 (best). */ | |
56 | int keepalives; /* Set SO_KEEPALIVE. */ | |
57 | ||
58 | int port; /* Port to connect. */ | |
59 | int connection_attempts; /* Max attempts (seconds) before giving up */ | |
60 | int number_of_password_prompts; /* Max number of password prompts. */ | |
61 | int cipher; /* Cipher to use. */ | |
62 | char *hostname; /* Real host to connect. */ | |
63 | char *proxy_command; /* Proxy command for connecting the host. */ | |
64 | char *user; /* User to log in as. */ | |
65 | int escape_char; /* Escape character; -2 = none */ | |
66 | ||
67 | char *system_hostfile; /* Path for /etc/ssh_known_hosts. */ | |
68 | char *user_hostfile; /* Path for $HOME/.ssh/known_hosts. */ | |
69 | ||
70 | int num_identity_files; /* Number of files for RSA identities. */ | |
71 | char *identity_files[SSH_MAX_IDENTITY_FILES]; | |
72 | ||
73 | /* Local TCP/IP forward requests. */ | |
74 | int num_local_forwards; | |
75 | Forward local_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; | |
76 | ||
77 | /* Remote TCP/IP forward requests. */ | |
78 | int num_remote_forwards; | |
79 | Forward remote_forwards[SSH_MAX_FORWARDS_PER_DIRECTION]; | |
80 | } Options; | |
81 | ||
82 | ||
83 | /* Initializes options to special values that indicate that they have not | |
84 | yet been set. Read_config_file will only set options with this value. | |
85 | Options are processed in the following order: command line, user config | |
86 | file, system config file. Last, fill_default_options is called. */ | |
87 | void initialize_options(Options *options); | |
88 | ||
89 | /* Called after processing other sources of option data, this fills those | |
90 | options for which no value has been specified with their default values. */ | |
91 | void fill_default_options(Options *options); | |
92 | ||
93 | /* Processes a single option line as used in the configuration files. | |
94 | This only sets those values that have not already been set. */ | |
95 | void process_config_line(Options *options, const char *host, | |
96 | char *line, const char *filename, int linenum, | |
97 | int *activep); | |
98 | ||
99 | /* Reads the config file and modifies the options accordingly. Options should | |
100 | already be initialized before this call. This never returns if there | |
101 | is an error. If the file does not exist, this returns immediately. */ | |
102 | void read_config_file(const char *filename, const char *host, | |
103 | Options *options); | |
104 | ||
105 | /* Adds a local TCP/IP port forward to options. Never returns if there | |
106 | is an error. */ | |
107 | void add_local_forward(Options *options, int port, const char *host, | |
108 | int host_port); | |
109 | ||
110 | /* Adds a remote TCP/IP port forward to options. Never returns if there | |
111 | is an error. */ | |
112 | void add_remote_forward(Options *options, int port, const char *host, | |
113 | int host_port); | |
114 | ||
115 | ||
116 | #endif /* READCONF_H */ |