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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 | #include <arpa/inet.h> |
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38 | #ifdef ENABLE_ICMP |
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39 | # ifdef HAVE_NETINET_IN_SYSTM_H |
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40 | # include <netinet/in_systm.h> |
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41 | # endif |
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42 | # ifdef HAVE_NETINET_IP_H |
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43 | # include <netinet/ip.h> |
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44 | # endif |
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45 | # include <netinet/ip_icmp.h> |
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46 | #endif |
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47 | |
36 | #include <openssl/err.h> |
48 | #include <openssl/err.h> |
37 | #include <openssl/pem.h> |
49 | #include <openssl/pem.h> |
38 | #include <openssl/rsa.h> |
50 | #include <openssl/rsa.h> |
39 | #include <openssl/rand.h> |
51 | #include <openssl/rand.h> |
40 | |
52 | |
… | |
… | |
49 | char *identname; |
61 | char *identname; |
50 | char *pidfilename; |
62 | char *pidfilename; |
51 | |
63 | |
52 | struct configuration conf; |
64 | struct configuration conf; |
53 | |
65 | |
54 | configuration::configuration () |
66 | u8 best_protocol (u8 protset) |
55 | { |
67 | { |
56 | init (); |
68 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
57 | } |
69 | if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
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70 | if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
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71 | if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
58 | |
72 | |
59 | configuration::~configuration () |
73 | return 0; |
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74 | } |
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75 | |
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76 | const char *strprotocol (u8 protocol) |
60 | { |
77 | { |
61 | cleanup (); |
78 | if (protocol & PROT_IPv4 ) return "rawip"; |
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79 | if (protocol & PROT_ICMPv4) return "icmp"; |
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80 | if (protocol & PROT_UDPv4 ) return "udp"; |
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81 | if (protocol & PROT_TCPv4 ) return "tcp"; |
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82 | |
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83 | return "<unknown>"; |
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84 | } |
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85 | |
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86 | void |
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87 | conf_node::print () |
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88 | { |
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89 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n", |
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90 | id, |
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91 | id >> 8, id & 0xff, |
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92 | compress ? 'Y' : 'N', |
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93 | connectmode == C_ONDEMAND ? "ondemand" : |
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94 | connectmode == C_NEVER ? "never" : |
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95 | connectmode == C_ALWAYS ? "always" : "", |
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96 | nodename, |
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97 | hostname ? hostname : "", |
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98 | hostname ? ":" : "", |
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99 | hostname ? udp_port : 0 |
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100 | ); |
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101 | } |
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102 | |
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103 | conf_node::~conf_node () |
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104 | { |
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105 | if (rsa_key) |
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106 | RSA_free (rsa_key); |
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107 | |
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108 | free (nodename); |
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109 | free (hostname); |
62 | } |
110 | } |
63 | |
111 | |
64 | void configuration::init () |
112 | void configuration::init () |
65 | { |
113 | { |
66 | memset (this, 0, sizeof (*this)); |
114 | memset (this, 0, sizeof (*this)); |
67 | |
115 | |
68 | rekey = DEFAULT_REKEY; |
116 | rekey = DEFAULT_REKEY; |
69 | keepalive = DEFAULT_KEEPALIVE; |
117 | keepalive = DEFAULT_KEEPALIVE; |
70 | llevel = L_INFO; |
118 | llevel = L_INFO; |
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119 | ip_proto = IPPROTO_GRE; |
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120 | #if ENABLE_ICMP |
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121 | icmp_type = ICMP_ECHOREPLY; |
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122 | #endif |
71 | |
123 | |
72 | default_node.port = DEFAULT_PORT; |
124 | default_node.udp_port = DEFAULT_UDPPORT; |
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125 | default_node.tcp_port = DEFAULT_UDPPORT; |
73 | default_node.connectmode = conf_node::C_ALWAYS; |
126 | default_node.connectmode = conf_node::C_ALWAYS; |
74 | default_node.compress = true; |
127 | default_node.compress = true; |
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128 | default_node.protocols = PROT_UDPv4; |
75 | } |
129 | } |
76 | |
130 | |
77 | void configuration::cleanup() |
131 | void configuration::cleanup() |
78 | { |
132 | { |
79 | if (rsa_key) |
133 | if (rsa_key) |
80 | RSA_free (rsa_key); |
134 | RSA_free (rsa_key); |
81 | |
135 | |
82 | free (ifname); |
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83 | |
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84 | rsa_key = 0; |
136 | rsa_key = 0; |
85 | ifname = 0; |
137 | |
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138 | free (ifname); ifname = 0; |
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139 | #if ENABLE_HTTP_PROXY |
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140 | free (proxy_host); proxy_host = 0; |
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141 | free (proxy_auth); proxy_auth = 0; |
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142 | #endif |
86 | } |
143 | } |
87 | |
144 | |
88 | void |
145 | void |
89 | configuration::clear_config () |
146 | configuration::clear_config () |
90 | { |
147 | { |
… | |
… | |
94 | nodes.clear (); |
151 | nodes.clear (); |
95 | |
152 | |
96 | cleanup (); |
153 | cleanup (); |
97 | init (); |
154 | init (); |
98 | } |
155 | } |
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156 | |
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157 | #define parse_bool(target,name,trueval,falseval) \ |
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158 | if (!strcmp (val, "yes")) target = trueval; \ |
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159 | else if (!strcmp (val, "no")) target = falseval; \ |
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160 | else if (!strcmp (val, "true")) target = trueval; \ |
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161 | else if (!strcmp (val, "false")) target = falseval; \ |
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162 | else if (!strcmp (val, "on")) target = trueval; \ |
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163 | else if (!strcmp (val, "off")) target = falseval; \ |
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164 | else \ |
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165 | slog (L_WARN, \ |
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166 | _("illegal value for '%s', only 'yes|true|on' or 'no|false|off' allowed, at '%s' line %d"), \ |
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167 | name, var, fname, lineno); |
99 | |
168 | |
100 | void configuration::read_config (bool need_keys) |
169 | void configuration::read_config (bool need_keys) |
101 | { |
170 | { |
102 | char *fname; |
171 | char *fname; |
103 | FILE *f; |
172 | FILE *f; |
… | |
… | |
167 | if (l != L_NONE) |
236 | if (l != L_NONE) |
168 | llevel = l; |
237 | llevel = l; |
169 | else |
238 | else |
170 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
239 | slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line); |
171 | } |
240 | } |
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241 | else if (!strcmp (var, "ip-proto")) |
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242 | ip_proto = atoi (val); |
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243 | #if ENABLE_ICMP |
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244 | //TODO: error message |
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245 | else if (!strcmp (var, "icmp-type")) |
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246 | icmp_type = atoi (val); |
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247 | #endif |
172 | |
248 | |
173 | // per config |
249 | // per config |
174 | else if (!strcmp (var, "node")) |
250 | else if (!strcmp (var, "node")) |
175 | { |
251 | { |
176 | default_node.id++; |
252 | default_node.id++; |
… | |
… | |
219 | } |
295 | } |
220 | else if (!strcmp (var, "private-key")) |
296 | else if (!strcmp (var, "private-key")) |
221 | prikeyfile = strdup (val); |
297 | prikeyfile = strdup (val); |
222 | else if (!strcmp (var, "ifpersist")) |
298 | else if (!strcmp (var, "ifpersist")) |
223 | { |
299 | { |
224 | if (!strcmp (val, "yes")) |
300 | 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 | } |
301 | } |
233 | else if (!strcmp (var, "ifname")) |
302 | else if (!strcmp (var, "ifname")) |
234 | ifname = strdup (val); |
303 | ifname = strdup (val); |
235 | else if (!strcmp (var, "rekey")) |
304 | else if (!strcmp (var, "rekey")) |
236 | rekey = atoi (val); |
305 | rekey = atoi (val); |
… | |
… | |
242 | script_if_up = strdup (val); |
311 | script_if_up = strdup (val); |
243 | else if (!strcmp (var, "node-up")) |
312 | else if (!strcmp (var, "node-up")) |
244 | script_node_up = strdup (val); |
313 | script_node_up = strdup (val); |
245 | else if (!strcmp (var, "node-down")) |
314 | else if (!strcmp (var, "node-down")) |
246 | script_node_down = strdup (val); |
315 | script_node_down = strdup (val); |
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316 | #if ENABLE_HTTP_PROXY |
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317 | else if (!strcmp (var, "http-proxy-host")) |
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318 | proxy_host = strdup (val); |
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319 | else if (!strcmp (var, "http-proxy-port")) |
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320 | proxy_port = atoi (val); |
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321 | else if (!strcmp (var, "http-proxy-auth")) |
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322 | proxy_auth = (char *)base64_encode ((const u8 *)val, strlen (val)); |
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323 | #endif |
247 | |
324 | |
248 | /* node-specific, non-defaultable */ |
325 | /* node-specific, non-defaultable */ |
249 | else if (node != &default_node && !strcmp (var, "hostname")) |
326 | else if (node != &default_node && !strcmp (var, "hostname")) |
250 | { |
327 | { |
251 | free (node->hostname); |
328 | free (node->hostname); |
252 | node->hostname = strdup (val); |
329 | node->hostname = strdup (val); |
253 | } |
330 | } |
254 | |
331 | |
255 | /* node-specific, defaultable */ |
332 | /* node-specific, defaultable */ |
256 | else if (!strcmp (var, "udp-port")) |
333 | else if (!strcmp (var, "udp-port")) |
257 | node->port = atoi (val); |
334 | node->udp_port = atoi (val); |
258 | else if (!strcmp (var, "port")) //deprecated |
335 | else if (!strcmp (var, "tcp-port")) |
259 | node->port = atoi (val); |
336 | node->tcp_port = atoi (val); |
260 | else if (!strcmp (var, "router-priority")) |
337 | else if (!strcmp (var, "router-priority")) |
261 | node->routerprio = atoi (val); |
338 | node->routerprio = atoi (val); |
262 | else if (!strcmp (var, "connect")) |
339 | else if (!strcmp (var, "connect")) |
263 | { |
340 | { |
264 | if (!strcmp (val, "ondemand")) |
341 | if (!strcmp (val, "ondemand")) |
… | |
… | |
274 | _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"), |
351 | _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"), |
275 | var, fname, lineno); |
352 | var, fname, lineno); |
276 | } |
353 | } |
277 | else if (!strcmp (var, "inherit-tos")) |
354 | else if (!strcmp (var, "inherit-tos")) |
278 | { |
355 | { |
279 | if (!strcmp (val, "yes")) |
356 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
280 | node->inherit_tos = true; |
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281 | else if (!strcmp (val, "no")) |
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282 | node->inherit_tos = false; |
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283 | else |
357 | } |
284 | slog (L_WARN, |
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285 | _("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"), |
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286 | var, fname, lineno); |
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287 | } |
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288 | |
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289 | else if (!strcmp (var, "compress")) |
358 | else if (!strcmp (var, "compress")) |
290 | { |
359 | { |
291 | if (!strcmp (val, "yes")) |
360 | parse_bool (node->compress, "compress", true, false); |
292 | node->compress = true; |
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293 | else if (!strcmp (val, "no")) |
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294 | node->compress = false; |
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295 | else |
361 | } |
296 | slog (L_WARN, |
362 | // all these bool options really really cost a lot of executable size! |
297 | _("illegal value for 'compress', only 'yes' or 'no' allowed, at '%s' line %d"), |
363 | else if (!strcmp (var, "enable-tcp")) |
298 | var, fname, lineno); |
364 | { |
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365 | #if ENABLE_TCP |
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366 | u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) | v; |
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367 | #endif |
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368 | } |
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369 | else if (!strcmp (var, "enable-icmp")) |
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370 | { |
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371 | #if ENABLE_ICMP |
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372 | u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) | v; |
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373 | #endif |
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374 | } |
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375 | else if (!strcmp (var, "enable-udp")) |
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376 | { |
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377 | u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) | v; |
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378 | } |
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379 | else if (!strcmp (var, "enable-rawip")) |
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380 | { |
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381 | u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) | v; |
299 | } |
382 | } |
300 | |
383 | |
301 | // unknown or misplaced |
384 | // unknown or misplaced |
302 | else |
385 | else |
303 | { |
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304 | slog (L_WARN, |
386 | slog (L_WARN, |
305 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
387 | _("unknown or misplaced variable `%s', at '%s' line %d"), |
306 | var, fname, lineno); |
388 | var, fname, lineno); |
307 | } |
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308 | } |
389 | } |
309 | |
390 | |
310 | fclose (f); |
391 | fclose (f); |
311 | } |
392 | } |
312 | else |
393 | else |
… | |
… | |
371 | printf (_("MTU: %d\n"), mtu); |
452 | printf (_("MTU: %d\n"), mtu); |
372 | printf (_("rekeying interval: %d\n"), rekey); |
453 | printf (_("rekeying interval: %d\n"), rekey); |
373 | printf (_("keepalive interval: %d\n"), keepalive); |
454 | printf (_("keepalive interval: %d\n"), keepalive); |
374 | printf (_("interface: %s\n"), ifname); |
455 | printf (_("interface: %s\n"), ifname); |
375 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
456 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
376 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) : -1); |
457 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
377 | printf ("\n"); |
458 | printf ("\n"); |
378 | |
459 | |
379 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
460 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
380 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
461 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
381 | |
462 | |
… | |
… | |
383 | (*i)->print (); |
464 | (*i)->print (); |
384 | |
465 | |
385 | printf ("\n"); |
466 | printf ("\n"); |
386 | } |
467 | } |
387 | |
468 | |
388 | void |
469 | configuration::configuration () |
389 | conf_node::print () |
|
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390 | { |
470 | { |
391 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n", |
471 | init (); |
392 | id, |
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393 | id >> 8, id & 0xff, |
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394 | compress ? 'Y' : 'N', |
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395 | connectmode == C_ONDEMAND ? "ondemand" : |
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396 | connectmode == C_NEVER ? "never" : |
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397 | connectmode == C_ALWAYS ? "always" : "", |
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398 | nodename, |
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399 | hostname ? hostname : "", |
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400 | hostname ? ":" : "", |
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401 | hostname ? port : 0 |
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402 | ); |
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403 | } |
472 | } |
404 | |
473 | |
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474 | configuration::~configuration () |
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475 | { |
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476 | cleanup (); |
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477 | } |
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478 | |
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479 | |