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38 | #define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple |
38 | #define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple |
39 | #define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval |
39 | #define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval |
40 | #define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate |
40 | #define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate |
41 | #define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests |
41 | #define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests |
42 | |
42 | |
43 | enum { |
43 | enum |
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44 | { |
44 | PROT_UDPv4 = 0x01, // udp over ipv4 |
45 | PROT_UDPv4 = 0x01, // udp over ipv4 |
45 | PROT_IPv4 = 0x02, // generic ip protocol |
46 | PROT_IPv4 = 0x02, // generic ip protocol |
46 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
47 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
47 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
48 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
48 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
49 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
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53 | |
54 | |
54 | // select the "best" protocol of the available ones |
55 | // select the "best" protocol of the available ones |
55 | u8 best_protocol (u8 protset); |
56 | u8 best_protocol (u8 protset); |
56 | const char *strprotocol (u8 protocol); |
57 | const char *strprotocol (u8 protocol); |
57 | |
58 | |
58 | struct conf_node { |
59 | struct conf_node |
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60 | { |
59 | int id; // the id of this node, a 12-bit-number |
61 | int id; // the id of this node, a 12-bit-number |
60 | |
62 | |
61 | RSA *rsa_key; // his public key |
63 | RSA *rsa_key; // his public key |
62 | char *nodename; // nodename, an internal nickname. |
64 | char *nodename; // nodename, an internal nickname. |
63 | char *hostname; // hostname, if known, or NULL. |
65 | char *hostname; // hostname, if known, or NULL. |
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66 | char *if_up_data; |
64 | #if ENABLE_DNS |
67 | #if ENABLE_DNS |
65 | char *domain; // dns tunnel domain |
68 | char *domain; // dns tunnel domain |
66 | #endif |
69 | #endif |
67 | char *dns_hostname; |
70 | char *dns_hostname; |
68 | u16 dns_port; |
71 | u16 dns_port; |
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80 | void print (); |
83 | void print (); |
81 | |
84 | |
82 | ~conf_node (); |
85 | ~conf_node (); |
83 | }; |
86 | }; |
84 | |
87 | |
85 | struct configuration { |
88 | struct configuration |
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89 | { |
86 | typedef vector<conf_node *> node_vector; |
90 | typedef vector<conf_node *> node_vector; |
87 | node_vector nodes; |
91 | node_vector nodes; |
88 | conf_node default_node; |
92 | conf_node default_node; |
89 | conf_node *thisnode; |
93 | conf_node *thisnode; |
90 | int mtu; // the mtu used for outgoing tunnel packets |
94 | int mtu; // the mtu used for outgoing tunnel packets |
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120 | int dns_max_outstanding; |
124 | int dns_max_outstanding; |
121 | #endif |
125 | #endif |
122 | |
126 | |
123 | void init (); |
127 | void init (); |
124 | void cleanup (); |
128 | void cleanup (); |
125 | void read_config (bool need_keys); |
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126 | void clear_config (); |
129 | void clear (); |
127 | |
130 | |
128 | // create a filename from string, replacing %s by the nodename |
131 | // create a filename from string, replacing %s by the nodename |
129 | // and using relative paths under confbase. |
132 | // and using relative paths under confbase. |
130 | char *config_filename (const char *name, const char *dflt); |
133 | char *config_filename (const char *name, const char *dflt); |
131 | |
134 | |
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133 | |
136 | |
134 | configuration (); |
137 | configuration (); |
135 | ~configuration (); |
138 | ~configuration (); |
136 | }; |
139 | }; |
137 | |
140 | |
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141 | struct configuration_parser |
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142 | { |
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143 | configuration &conf; |
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144 | |
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145 | bool need_keys; |
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146 | conf_node *node; |
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147 | |
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148 | int argc; |
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149 | char **argv; |
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150 | |
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151 | configuration_parser (configuration &conf, bool need_keys, int argc, char **argv); |
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152 | |
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153 | const char *parse_line (char *line); |
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154 | void parse_argv (); |
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155 | }; |
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156 | |
138 | extern struct configuration conf; |
157 | extern struct configuration conf; |
139 | |
158 | |
140 | #define THISNODE ::conf.thisnode |
159 | #define THISNODE ::conf.thisnode |
141 | |
160 | |
142 | #endif |
161 | #endif |