1 | /* |
1 | /* |
2 | conf.c -- configuration code |
2 | conf.c -- configuration code |
3 | Copyright (C) 1998 Robert van der Meulen |
3 | Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com> |
4 | 1998-2002 Ivo Timmermans <ivo@o2w.nl> |
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5 | 2000-2002 Guus Sliepen <guus@sliepen.eu.org> |
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6 | 2000 Cris van Pelt <tribbel@arise.dhs.org> |
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7 | 2003 Marc Lehmann <pcg@goof.com> |
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8 | |
4 | |
9 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
12 | (at your option) any later version. |
8 | (at your option) any later version. |
… | |
… | |
31 | #include <netdb.h> |
27 | #include <netdb.h> |
32 | #include <sys/stat.h> |
28 | #include <sys/stat.h> |
33 | #include <sys/types.h> |
29 | #include <sys/types.h> |
34 | #include <unistd.h> |
30 | #include <unistd.h> |
35 | |
31 | |
36 | #include <netinet/in.h> |
32 | #include "netcompat.h" |
37 | |
33 | |
38 | #include <openssl/err.h> |
34 | #include <openssl/err.h> |
39 | #include <openssl/pem.h> |
35 | #include <openssl/pem.h> |
40 | #include <openssl/rsa.h> |
36 | #include <openssl/rsa.h> |
41 | #include <openssl/rand.h> |
37 | #include <openssl/rand.h> |
… | |
… | |
51 | char *identname; |
47 | char *identname; |
52 | char *pidfilename; |
48 | char *pidfilename; |
53 | |
49 | |
54 | struct configuration conf; |
50 | struct configuration conf; |
55 | |
51 | |
56 | configuration::configuration () |
52 | u8 best_protocol (u8 protset) |
57 | { |
53 | { |
58 | init (); |
54 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
59 | } |
55 | if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
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56 | if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
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57 | if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
60 | |
58 | |
61 | configuration::~configuration () |
59 | return 0; |
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60 | } |
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61 | |
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62 | const char *strprotocol (u8 protocol) |
62 | { |
63 | { |
63 | cleanup (); |
64 | if (protocol & PROT_IPv4 ) return "rawip"; |
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65 | if (protocol & PROT_ICMPv4) return "icmp"; |
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66 | if (protocol & PROT_UDPv4 ) return "udp"; |
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67 | if (protocol & PROT_TCPv4 ) return "tcp"; |
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68 | |
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69 | return "<unknown>"; |
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70 | } |
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71 | |
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72 | void |
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73 | conf_node::print () |
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74 | { |
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75 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n", |
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76 | id, |
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77 | id >> 8, id & 0xff, |
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78 | compress ? 'Y' : 'N', |
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79 | connectmode == C_ONDEMAND ? "ondemand" : |
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80 | connectmode == C_NEVER ? "never" : |
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81 | connectmode == C_ALWAYS ? "always" : "", |
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82 | nodename, |
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83 | hostname ? hostname : "", |
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84 | hostname ? ":" : "", |
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85 | hostname ? udp_port : 0 |
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86 | ); |
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87 | } |
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88 | |
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89 | conf_node::~conf_node () |
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90 | { |
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91 | if (rsa_key) |
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92 | RSA_free (rsa_key); |
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93 | |
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94 | free (nodename); |
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95 | free (hostname); |
64 | } |
96 | } |
65 | |
97 | |
66 | void configuration::init () |
98 | void configuration::init () |
67 | { |
99 | { |
68 | memset (this, 0, sizeof (*this)); |
100 | memset (this, 0, sizeof (*this)); |
69 | |
101 | |
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102 | mtu = DEFAULT_MTU; |
70 | rekey = DEFAULT_REKEY; |
103 | rekey = DEFAULT_REKEY; |
71 | keepalive = DEFAULT_KEEPALIVE; |
104 | keepalive = DEFAULT_KEEPALIVE; |
72 | llevel = L_INFO; |
105 | llevel = L_INFO; |
73 | ip_proto = IPPROTO_GRE; |
106 | ip_proto = IPPROTO_GRE; |
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107 | #if ENABLE_ICMP |
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108 | icmp_type = ICMP_ECHOREPLY; |
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109 | #endif |
74 | |
110 | |
75 | default_node.udp_port = DEFAULT_UDPPORT; |
111 | default_node.udp_port = DEFAULT_UDPPORT; |
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112 | default_node.tcp_port = DEFAULT_UDPPORT; |
76 | default_node.connectmode = conf_node::C_ALWAYS; |
113 | default_node.connectmode = conf_node::C_ALWAYS; |
77 | default_node.compress = true; |
114 | default_node.compress = true; |
78 | default_node.protocols = PROT_UDPv4; |
115 | default_node.protocols = PROT_UDPv4; |
79 | } |
116 | } |
80 | |
117 | |
81 | void configuration::cleanup() |
118 | void configuration::cleanup() |
82 | { |
119 | { |
83 | if (rsa_key) |
120 | if (rsa_key) |
84 | RSA_free (rsa_key); |
121 | RSA_free (rsa_key); |
85 | |
122 | |
86 | free (ifname); |
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87 | |
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88 | rsa_key = 0; |
123 | rsa_key = 0; |
89 | ifname = 0; |
124 | |
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125 | free (ifname); ifname = 0; |
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126 | #if ENABLE_HTTP_PROXY |
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127 | free (proxy_host); proxy_host = 0; |
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128 | free (proxy_auth); proxy_auth = 0; |
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129 | #endif |
90 | } |
130 | } |
91 | |
131 | |
92 | void |
132 | void |
93 | configuration::clear_config () |
133 | configuration::clear_config () |
94 | { |
134 | { |
… | |
… | |
185 | else |
225 | else |
186 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
226 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
187 | } |
227 | } |
188 | else if (!strcmp (var, "ip-proto")) |
228 | else if (!strcmp (var, "ip-proto")) |
189 | ip_proto = atoi (val); |
229 | ip_proto = atoi (val); |
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230 | else if (!strcmp (var, "icmp-type")) |
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231 | { |
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232 | #if ENABLE_ICMP |
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233 | icmp_type = atoi (val); |
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234 | #endif |
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235 | } |
190 | |
236 | |
191 | // per config |
237 | // per config |
192 | else if (!strcmp (var, "node")) |
238 | else if (!strcmp (var, "node")) |
193 | { |
239 | { |
194 | default_node.id++; |
240 | default_node.id++; |
… | |
… | |
253 | script_if_up = strdup (val); |
299 | script_if_up = strdup (val); |
254 | else if (!strcmp (var, "node-up")) |
300 | else if (!strcmp (var, "node-up")) |
255 | script_node_up = strdup (val); |
301 | script_node_up = strdup (val); |
256 | else if (!strcmp (var, "node-down")) |
302 | else if (!strcmp (var, "node-down")) |
257 | script_node_down = strdup (val); |
303 | script_node_down = strdup (val); |
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304 | else if (!strcmp (var, "http-proxy-host")) |
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305 | { |
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306 | #if ENABLE_HTTP_PROXY |
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307 | proxy_host = strdup (val); |
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308 | #endif |
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309 | } |
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310 | else if (!strcmp (var, "http-proxy-port")) |
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311 | { |
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312 | #if ENABLE_HTTP_PROXY |
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313 | proxy_port = atoi (val); |
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314 | #endif |
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315 | } |
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316 | else if (!strcmp (var, "http-proxy-auth")) |
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317 | { |
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318 | #if ENABLE_HTTP_PROXY |
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319 | proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val)); |
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320 | #endif |
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321 | } |
258 | |
322 | |
259 | /* node-specific, non-defaultable */ |
323 | /* node-specific, non-defaultable */ |
260 | else if (node != &default_node && !strcmp (var, "hostname")) |
324 | else if (node != &default_node && !strcmp (var, "hostname")) |
261 | { |
325 | { |
262 | free (node->hostname); |
326 | free (node->hostname); |
… | |
… | |
264 | } |
328 | } |
265 | |
329 | |
266 | /* node-specific, defaultable */ |
330 | /* node-specific, defaultable */ |
267 | else if (!strcmp (var, "udp-port")) |
331 | else if (!strcmp (var, "udp-port")) |
268 | node->udp_port = atoi (val); |
332 | node->udp_port = atoi (val); |
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333 | else if (!strcmp (var, "tcp-port")) |
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334 | node->tcp_port = atoi (val); |
269 | else if (!strcmp (var, "router-priority")) |
335 | else if (!strcmp (var, "router-priority")) |
270 | node->routerprio = atoi (val); |
336 | node->routerprio = atoi (val); |
271 | else if (!strcmp (var, "connect")) |
337 | else if (!strcmp (var, "connect")) |
272 | { |
338 | { |
273 | if (!strcmp (val, "ondemand")) |
339 | if (!strcmp (val, "ondemand")) |
… | |
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290 | else if (!strcmp (var, "compress")) |
356 | else if (!strcmp (var, "compress")) |
291 | { |
357 | { |
292 | parse_bool (node->compress, "compress", true, false); |
358 | parse_bool (node->compress, "compress", true, false); |
293 | } |
359 | } |
294 | // all these bool options really really cost a lot of executable size! |
360 | // all these bool options really really cost a lot of executable size! |
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361 | else if (!strcmp (var, "enable-tcp")) |
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362 | { |
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363 | #if ENABLE_TCP |
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364 | u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
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365 | #endif |
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366 | } |
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367 | else if (!strcmp (var, "enable-icmp")) |
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368 | { |
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369 | #if ENABLE_ICMP |
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370 | u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v; |
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371 | #endif |
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372 | } |
295 | else if (!strcmp (var, "enable-udp")) |
373 | else if (!strcmp (var, "enable-udp")) |
296 | { |
374 | { |
297 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
375 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
298 | } |
376 | } |
299 | else if (!strcmp (var, "enable-rawip")) |
377 | else if (!strcmp (var, "enable-rawip")) |
… | |
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301 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
379 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
302 | } |
380 | } |
303 | |
381 | |
304 | // unknown or misplaced |
382 | // unknown or misplaced |
305 | else |
383 | else |
306 | { |
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307 | slog (L_WARN, |
384 | slog (L_WARN, |
308 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
385 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
309 | var, fname, lineno); |
386 | var, fname, lineno); |
310 | } |
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311 | } |
387 | } |
312 | |
388 | |
313 | fclose (f); |
389 | fclose (f); |
314 | } |
390 | } |
315 | else |
391 | else |
… | |
… | |
374 | printf (_("MTU: %d\n"), mtu); |
450 | printf (_("MTU: %d\n"), mtu); |
375 | printf (_("rekeying interval: %d\n"), rekey); |
451 | printf (_("rekeying interval: %d\n"), rekey); |
376 | printf (_("keepalive interval: %d\n"), keepalive); |
452 | printf (_("keepalive interval: %d\n"), keepalive); |
377 | printf (_("interface: %s\n"), ifname); |
453 | printf (_("interface: %s\n"), ifname); |
378 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
454 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
379 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1); |
455 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
380 | printf ("\n"); |
456 | printf ("\n"); |
381 | |
457 | |
382 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
458 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
383 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
459 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
384 | |
460 | |
… | |
… | |
386 | (*i)->print (); |
462 | (*i)->print (); |
387 | |
463 | |
388 | printf ("\n"); |
464 | printf ("\n"); |
389 | } |
465 | } |
390 | |
466 | |
391 | void |
467 | configuration::configuration () |
392 | conf_node::print () |
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393 | { |
468 | { |
394 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n", |
469 | init (); |
395 | id, |
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396 | id >> 8, id & 0xff, |
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397 | compress ? 'Y' : 'N', |
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398 | connectmode == C_ONDEMAND ? "ondemand" : |
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399 | connectmode == C_NEVER ? "never" : |
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400 | connectmode == C_ALWAYS ? "always" : "", |
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401 | nodename, |
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402 | hostname ? hostname : "", |
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403 | hostname ? ":" : "", |
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404 | hostname ? udp_port : 0 |
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405 | ); |
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406 | } |
470 | } |
407 | |
471 | |
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472 | configuration::~configuration () |
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473 | { |
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474 | cleanup (); |
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475 | } |
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476 | |
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477 | |