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31 | #include <netdb.h> |
31 | #include <netdb.h> |
32 | #include <sys/stat.h> |
32 | #include <sys/stat.h> |
33 | #include <sys/types.h> |
33 | #include <sys/types.h> |
34 | #include <unistd.h> |
34 | #include <unistd.h> |
35 | |
35 | |
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36 | #include <netinet/in.h> |
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37 | |
36 | #include <openssl/err.h> |
38 | #include <openssl/err.h> |
37 | #include <openssl/pem.h> |
39 | #include <openssl/pem.h> |
38 | #include <openssl/rsa.h> |
40 | #include <openssl/rsa.h> |
39 | #include <openssl/rand.h> |
41 | #include <openssl/rand.h> |
40 | |
42 | |
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49 | char *identname; |
51 | char *identname; |
50 | char *pidfilename; |
52 | char *pidfilename; |
51 | |
53 | |
52 | struct configuration conf; |
54 | struct configuration conf; |
53 | |
55 | |
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56 | u8 best_protocol (u8 protset) |
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57 | { |
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58 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
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59 | if (protset & PROT_UDPv4) return PROT_UDPv4; |
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60 | if (protset & PROT_TCPv4) return PROT_TCPv4; |
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61 | |
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62 | return 0; |
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63 | } |
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64 | |
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65 | const char *strprotocol (u8 protocol) |
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66 | { |
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67 | if (protocol & PROT_IPv4 ) return "rawip"; |
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68 | if (protocol & PROT_UDPv4) return "udp"; |
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69 | |
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70 | return "<unknown>"; |
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71 | } |
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72 | |
54 | configuration::configuration () |
73 | configuration::configuration () |
55 | { |
74 | { |
56 | init (); |
75 | init (); |
57 | } |
76 | } |
58 | |
77 | |
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66 | memset (this, 0, sizeof (*this)); |
85 | memset (this, 0, sizeof (*this)); |
67 | |
86 | |
68 | rekey = DEFAULT_REKEY; |
87 | rekey = DEFAULT_REKEY; |
69 | keepalive = DEFAULT_KEEPALIVE; |
88 | keepalive = DEFAULT_KEEPALIVE; |
70 | llevel = L_INFO; |
89 | llevel = L_INFO; |
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90 | ip_proto = IPPROTO_GRE; |
71 | |
91 | |
72 | default_node.port = DEFAULT_PORT; |
92 | default_node.udp_port = DEFAULT_UDPPORT; |
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93 | default_node.tcp_port = DEFAULT_UDPPORT; |
73 | default_node.connectmode = conf_node::C_ALWAYS; |
94 | default_node.connectmode = conf_node::C_ALWAYS; |
74 | default_node.compress = true; |
95 | default_node.compress = true; |
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96 | default_node.protocols = PROT_UDPv4; |
75 | } |
97 | } |
76 | |
98 | |
77 | void configuration::cleanup() |
99 | void configuration::cleanup() |
78 | { |
100 | { |
79 | if (rsa_key) |
101 | if (rsa_key) |
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94 | nodes.clear (); |
116 | nodes.clear (); |
95 | |
117 | |
96 | cleanup (); |
118 | cleanup (); |
97 | init (); |
119 | init (); |
98 | } |
120 | } |
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121 | |
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122 | #define parse_bool(target,name,trueval,falseval) \ |
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123 | if (!strcmp (val, "yes")) target = trueval; \ |
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124 | else if (!strcmp (val, "no")) target = falseval; \ |
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125 | else if (!strcmp (val, "true")) target = trueval; \ |
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126 | else if (!strcmp (val, "false")) target = falseval; \ |
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127 | else if (!strcmp (val, "on")) target = trueval; \ |
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128 | else if (!strcmp (val, "off")) target = falseval; \ |
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129 | else \ |
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130 | slog (L_WARN, \ |
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131 | _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ |
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132 | name, var, fname, lineno); |
99 | |
133 | |
100 | void configuration::read_config (bool need_keys) |
134 | void configuration::read_config (bool need_keys) |
101 | { |
135 | { |
102 | char *fname; |
136 | char *fname; |
103 | FILE *f; |
137 | FILE *f; |
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167 | if (l != L_NONE) |
201 | if (l != L_NONE) |
168 | llevel = l; |
202 | llevel = l; |
169 | else |
203 | else |
170 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
204 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
171 | } |
205 | } |
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206 | else if (!strcmp (var, "ip-proto")) |
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207 | ip_proto = atoi (val); |
172 | |
208 | |
173 | // per config |
209 | // per config |
174 | else if (!strcmp (var, "node")) |
210 | else if (!strcmp (var, "node")) |
175 | { |
211 | { |
176 | default_node.id++; |
212 | default_node.id++; |
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219 | } |
255 | } |
220 | else if (!strcmp (var, "private-key")) |
256 | else if (!strcmp (var, "private-key")) |
221 | prikeyfile = strdup (val); |
257 | prikeyfile = strdup (val); |
222 | else if (!strcmp (var, "ifpersist")) |
258 | else if (!strcmp (var, "ifpersist")) |
223 | { |
259 | { |
224 | if (!strcmp (val, "yes")) |
260 | parse_bool (ifpersist, "ifpersist", true, false); |
225 | ifpersist = true; |
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226 | else if (!strcmp (val, "no")) |
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227 | ifpersist = false; |
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228 | else |
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229 | slog (L_WARN, |
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230 | _("illegal value for 'ifpersist', only 'yes' or 'no' allowed, at '%s' line %d"), |
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231 | var, fname, lineno); |
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232 | } |
261 | } |
233 | else if (!strcmp (var, "ifname")) |
262 | else if (!strcmp (var, "ifname")) |
234 | ifname = strdup (val); |
263 | ifname = strdup (val); |
235 | else if (!strcmp (var, "rekey")) |
264 | else if (!strcmp (var, "rekey")) |
236 | rekey = atoi (val); |
265 | rekey = atoi (val); |
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251 | free (node->hostname); |
280 | free (node->hostname); |
252 | node->hostname = strdup (val); |
281 | node->hostname = strdup (val); |
253 | } |
282 | } |
254 | |
283 | |
255 | /* node-specific, defaultable */ |
284 | /* node-specific, defaultable */ |
256 | else if (!strcmp (var, "port")) |
285 | else if (!strcmp (var, "udp-port")) |
257 | node->port = atoi (val); |
286 | node->udp_port = atoi (val); |
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287 | else if (!strcmp (var, "tcp-port")) |
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288 | node->tcp_port = atoi (val); |
258 | else if (!strcmp (var, "router-priority")) |
289 | else if (!strcmp (var, "router-priority")) |
259 | node->routerprio = atoi (val); |
290 | node->routerprio = atoi (val); |
260 | else if (!strcmp (var, "connect")) |
291 | else if (!strcmp (var, "connect")) |
261 | { |
292 | { |
262 | if (!strcmp (val, "ondemand")) |
293 | if (!strcmp (val, "ondemand")) |
263 | node->connectmode = conf_node::C_ONDEMAND; |
294 | node->connectmode = conf_node::C_ONDEMAND; |
264 | else if (!strcmp (val, "never")) |
295 | else if (!strcmp (val, "never")) |
265 | node->connectmode = conf_node::C_NEVER; |
296 | node->connectmode = conf_node::C_NEVER; |
266 | else if (!strcmp (val, "always")) |
297 | else if (!strcmp (val, "always")) |
267 | node->connectmode = conf_node::C_ALWAYS; |
298 | node->connectmode = conf_node::C_ALWAYS; |
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299 | else if (!strcmp (val, "disabled")) |
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300 | node->connectmode = conf_node::C_DISABLED; |
268 | else |
301 | else |
269 | slog (L_WARN, |
302 | slog (L_WARN, |
270 | _("illegal value for 'connectmode', use one of 'ondemand', 'never' or 'always', at '%s' line %d"), |
303 | _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"), |
271 | var, fname, lineno); |
304 | var, fname, lineno); |
272 | } |
305 | } |
273 | else if (!strcmp (var, "inherit-tos")) |
306 | else if (!strcmp (var, "inherit-tos")) |
274 | { |
307 | { |
275 | if (!strcmp (val, "yes")) |
308 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
276 | node->inherit_tos = true; |
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277 | else if (!strcmp (val, "no")) |
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278 | node->inherit_tos = false; |
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279 | else |
309 | } |
280 | slog (L_WARN, |
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281 | _("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"), |
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282 | var, fname, lineno); |
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283 | } |
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284 | |
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285 | else if (!strcmp (var, "compress")) |
310 | else if (!strcmp (var, "compress")) |
286 | { |
311 | { |
287 | if (!strcmp (val, "yes")) |
312 | parse_bool (node->compress, "compress", true, false); |
288 | node->compress = true; |
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289 | else if (!strcmp (val, "no")) |
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290 | node->compress = false; |
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291 | else |
313 | } |
292 | slog (L_WARN, |
314 | // all these bool options really really cost a lot of executable size! |
293 | _("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"), |
315 | else if (!strcmp (var, "enable-tcp")) |
294 | var, fname, lineno); |
316 | { |
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317 | u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
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318 | } |
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319 | else if (!strcmp (var, "enable-udp")) |
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320 | { |
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321 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
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322 | } |
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323 | else if (!strcmp (var, "enable-rawip")) |
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324 | { |
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325 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
295 | } |
326 | } |
296 | |
327 | |
297 | // unknown or misplaced |
328 | // unknown or misplaced |
298 | else |
329 | else |
299 | { |
330 | { |
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392 | connectmode == C_NEVER ? "never" : |
423 | connectmode == C_NEVER ? "never" : |
393 | connectmode == C_ALWAYS ? "always" : "", |
424 | connectmode == C_ALWAYS ? "always" : "", |
394 | nodename, |
425 | nodename, |
395 | hostname ? hostname : "", |
426 | hostname ? hostname : "", |
396 | hostname ? ":" : "", |
427 | hostname ? ":" : "", |
397 | hostname ? port : 0 |
428 | hostname ? udp_port : 0 |
398 | ); |
429 | ); |
399 | } |
430 | } |
400 | |
431 | |