1 | /* |
1 | /* |
2 | conf.c -- configuration code |
2 | conf.C -- configuration code |
3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
3 | Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
5 | This file is part of GVPE. |
5 | This file is part of GVPE. |
6 | |
6 | |
7 | GVPE is free software; you can redistribute it and/or modify it |
7 | GVPE is free software; you can redistribute it and/or modify it |
8 | under the terms of the GNU General Public License as published by the |
8 | under the terms of the GNU General Public License as published by the |
… | |
… | |
38 | #include <errno.h> |
38 | #include <errno.h> |
39 | #include <netdb.h> |
39 | #include <netdb.h> |
40 | #include <sys/stat.h> |
40 | #include <sys/stat.h> |
41 | #include <sys/types.h> |
41 | #include <sys/types.h> |
42 | #include <unistd.h> |
42 | #include <unistd.h> |
|
|
43 | #include <pwd.h> |
43 | |
44 | |
44 | #include "netcompat.h" |
45 | #include "netcompat.h" |
45 | |
46 | |
46 | #include <openssl/err.h> |
47 | #include <openssl/err.h> |
47 | #include <openssl/pem.h> |
48 | #include <openssl/pem.h> |
… | |
… | |
57 | char *thisnode; |
58 | char *thisnode; |
58 | char *identname; |
59 | char *identname; |
59 | |
60 | |
60 | struct configuration conf; |
61 | struct configuration conf; |
61 | |
62 | |
|
|
63 | u8 |
62 | u8 best_protocol (u8 protset) |
64 | best_protocol (u8 protset) |
63 | { |
65 | { |
64 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
66 | if (protset & PROT_IPv4 ) return PROT_IPv4; |
65 | if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
67 | if (protset & PROT_ICMPv4) return PROT_ICMPv4; |
66 | if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
68 | if (protset & PROT_UDPv4 ) return PROT_UDPv4; |
67 | if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
69 | if (protset & PROT_TCPv4 ) return PROT_TCPv4; |
68 | if (protset & PROT_DNSv4 ) return PROT_DNSv4; |
70 | if (protset & PROT_DNSv4 ) return PROT_DNSv4; |
69 | |
71 | |
70 | return 0; |
72 | return 0; |
71 | } |
73 | } |
72 | |
74 | |
|
|
75 | const char * |
73 | const char *strprotocol (u8 protocol) |
76 | strprotocol (u8 protocol) |
74 | { |
77 | { |
75 | if (protocol & PROT_IPv4 ) return "rawip"; |
78 | if (protocol & PROT_IPv4 ) return "rawip"; |
76 | if (protocol & PROT_ICMPv4) return "icmp"; |
79 | if (protocol & PROT_ICMPv4) return "icmp"; |
77 | if (protocol & PROT_UDPv4 ) return "udp"; |
80 | if (protocol & PROT_UDPv4 ) return "udp"; |
78 | if (protocol & PROT_TCPv4 ) return "tcp"; |
81 | if (protocol & PROT_TCPv4 ) return "tcp"; |
… | |
… | |
103 | return false; |
106 | return false; |
104 | |
107 | |
105 | return true; |
108 | return true; |
106 | } |
109 | } |
107 | |
110 | |
108 | void |
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|
109 | conf_node::print () |
|
|
110 | { |
|
|
111 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n", |
|
|
112 | id, |
|
|
113 | id >> 8, id & 0xff, |
|
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114 | compress ? 'Y' : 'N', |
|
|
115 | connectmode == C_ONDEMAND ? "ondemand" |
|
|
116 | : connectmode == C_NEVER ? "never" |
|
|
117 | : connectmode == C_ALWAYS ? "always" |
|
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118 | : connectmode == C_DISABLED ? "disabled" |
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119 | : "", |
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|
120 | nodename, |
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121 | hostname ? hostname : "", |
|
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122 | hostname ? ":" : "", |
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123 | hostname ? udp_port : 0 |
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|
124 | ); |
|
|
125 | } |
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126 | |
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|
127 | conf_node::~conf_node () |
111 | conf_node::~conf_node () |
128 | { |
112 | { |
129 | #if 0 |
113 | #if 0 |
130 | // does not work, because string pointers etc. are shared |
114 | // does not work, because string pointers etc. are shared |
131 | // is not called, however |
115 | // is not called, however |
… | |
… | |
140 | free (dns_hostname); |
124 | free (dns_hostname); |
141 | #endif |
125 | #endif |
142 | #endif |
126 | #endif |
143 | } |
127 | } |
144 | |
128 | |
|
|
129 | void |
145 | void configuration::init () |
130 | configuration::init () |
146 | { |
131 | { |
147 | memset (this, 0, sizeof (*this)); |
132 | memset (this, 0, sizeof (*this)); |
148 | |
133 | |
149 | mtu = DEFAULT_MTU; |
134 | mtu = DEFAULT_MTU; |
150 | nfmark = 0; |
135 | nfmark = 0; |
… | |
… | |
167 | default_node.if_up_data = strdup (""); |
152 | default_node.if_up_data = strdup (""); |
168 | |
153 | |
169 | #if ENABLE_DNS |
154 | #if ENABLE_DNS |
170 | default_node.dns_port = 0; // default is 0 == client |
155 | default_node.dns_port = 0; // default is 0 == client |
171 | |
156 | |
|
|
157 | dns_case_preserving = true; |
172 | dns_forw_host = strdup ("127.0.0.1"); |
158 | dns_forw_host = strdup ("127.0.0.1"); |
173 | dns_forw_port = 53; |
159 | dns_forw_port = 53; |
174 | dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR; |
160 | dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR; |
175 | dns_send_interval = DEFAULT_DNS_SEND_INTERVAL; |
161 | dns_send_interval = DEFAULT_DNS_SEND_INTERVAL; |
176 | dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR; |
162 | dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR; |
177 | dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING; |
163 | dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING; |
178 | #endif |
164 | #endif |
179 | |
165 | |
180 | conf.pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid"); |
166 | pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid"); |
|
|
167 | seed_dev = strdup ("/dev/urandom"); |
|
|
168 | reseed = DEFAULT_RESEED; |
181 | } |
169 | } |
182 | |
170 | |
|
|
171 | void |
183 | void configuration::cleanup() |
172 | configuration::cleanup () |
184 | { |
173 | { |
185 | if (rsa_key) |
174 | if (rsa_key) |
186 | RSA_free (rsa_key); |
175 | RSA_free (rsa_key); |
187 | |
176 | |
188 | rsa_key = 0; |
177 | rsa_key = 0; |
189 | |
178 | |
|
|
179 | free (seed_dev); seed_dev = 0; |
190 | free (pidfilename); pidfilename = 0; |
180 | free (pidfilename); pidfilename = 0; |
191 | free (ifname); ifname = 0; |
181 | free (ifname); ifname = 0; |
192 | #if ENABLE_HTTP_PROXY |
182 | #if ENABLE_HTTP_PROXY |
193 | free (proxy_host); proxy_host = 0; |
183 | free (proxy_host); proxy_host = 0; |
194 | free (proxy_auth); proxy_auth = 0; |
184 | free (proxy_auth); proxy_auth = 0; |
195 | #endif |
185 | #endif |
196 | #if ENABLE_DNS |
186 | #if ENABLE_DNS |
197 | free (dns_forw_host); dns_forw_host = 0; |
187 | free (dns_forw_host); dns_forw_host = 0; |
198 | #endif |
188 | #endif |
|
|
189 | free (change_root); change_root = 0; |
|
|
190 | free (script_if_up); script_if_up = 0; |
|
|
191 | free (script_node_up); script_node_up = 0; |
|
|
192 | free (script_node_change); script_node_change = 0; |
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|
193 | free (script_node_down); script_node_down = 0; |
199 | } |
194 | } |
200 | |
195 | |
201 | void |
196 | void |
202 | configuration::clear () |
197 | configuration::clear () |
203 | { |
198 | { |
… | |
… | |
207 | nodes.clear (); |
202 | nodes.clear (); |
208 | |
203 | |
209 | cleanup (); |
204 | cleanup (); |
210 | init (); |
205 | init (); |
211 | } |
206 | } |
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207 | |
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208 | conf_node * |
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209 | configuration::find_node (const char *name) |
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210 | { |
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211 | for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
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212 | if (!strcmp ((*i)->nodename, name)) |
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213 | return *i; |
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214 | |
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215 | return 0; |
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216 | } |
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217 | |
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218 | //static bool |
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219 | //is_true (const char *name) |
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220 | //{ |
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221 | //re |
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222 | //} |
212 | |
223 | |
213 | #define parse_bool(target,name,trueval,falseval) do { \ |
224 | #define parse_bool(target,name,trueval,falseval) do { \ |
214 | if (!strcmp (val, "yes")) target = trueval; \ |
225 | if (!strcmp (val, "yes")) target = trueval; \ |
215 | else if (!strcmp (val, "no")) target = falseval; \ |
226 | else if (!strcmp (val, "no")) target = falseval; \ |
216 | else if (!strcmp (val, "true")) target = trueval; \ |
227 | else if (!strcmp (val, "true")) target = trueval; \ |
217 | else if (!strcmp (val, "false")) target = falseval; \ |
228 | else if (!strcmp (val, "false")) target = falseval; \ |
218 | else if (!strcmp (val, "on")) target = trueval; \ |
229 | else if (!strcmp (val, "on")) target = trueval; \ |
219 | else if (!strcmp (val, "off")) target = falseval; \ |
230 | else if (!strcmp (val, "off")) target = falseval; \ |
220 | else \ |
231 | else \ |
221 | return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed. (ignored)"); \ |
232 | return _("illegal boolean value, only 'yes|true|on' or 'no|false|off' allowed, ignored"); \ |
222 | } while (0) |
233 | } while (0) |
223 | |
234 | |
224 | const char * |
235 | const char * |
225 | configuration_parser::parse_line (char *line) |
236 | configuration_parser::parse_line (char *line) |
226 | { |
237 | { |
… | |
… | |
241 | return 0; /* no tokens on this line */ |
252 | return 0; /* no tokens on this line */ |
242 | |
253 | |
243 | if (var[0] == '#') |
254 | if (var[0] == '#') |
244 | return 0; /* comment: ignore */ |
255 | return 0; /* comment: ignore */ |
245 | |
256 | |
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257 | if (!strcmp (var, "global")) |
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258 | { |
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259 | node = &conf.default_node; |
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260 | return 0; |
|
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261 | } |
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262 | |
246 | char *val = strtok (NULL, "\t\n\r ="); |
263 | char *val = strtok (NULL, "\t\n\r ="); |
247 | |
264 | |
248 | if (!val || val[0] == '#') |
265 | if (!val || val[0] == '#') |
249 | return _("no value given for variable. (ignored)"); |
266 | return _("no value given for variable, ignored"); |
250 | |
267 | |
251 | if (!strcmp (var, "on")) |
268 | else if (!strcmp (var, "on")) |
252 | { |
269 | { |
253 | if (!::thisnode |
270 | if (::thisnode |
254 | || (val[0] == '!' && strcmp (val + 1, ::thisnode)) |
271 | && ((val[0] == '!' && strcmp (val + 1, ::thisnode)) |
255 | || !strcmp (val, ::thisnode)) |
272 | || !strcmp (val, ::thisnode))) |
256 | return parse_line (strtok (NULL, "\n\r")); |
273 | return parse_line (strtok (NULL, "\n\r")); |
257 | else |
274 | } |
258 | return 0; |
275 | |
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|
276 | else if (!strcmp (var, "include")) |
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277 | { |
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278 | char *fname = conf.config_filename (val); |
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279 | parse_file (fname); |
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280 | free (fname); |
259 | } |
281 | } |
260 | |
282 | |
261 | // truly global |
283 | // truly global |
262 | if (!strcmp (var, "loglevel")) |
284 | else if (!strcmp (var, "loglevel")) |
263 | { |
285 | { |
264 | loglevel l = string_to_loglevel (val); |
286 | loglevel l = string_to_loglevel (val); |
265 | |
287 | |
266 | if (l == L_NONE) |
288 | if (l == L_NONE) |
267 | return _("unknown loglevel. (skipping)"); |
289 | return _("unknown loglevel, ignored"); |
268 | } |
290 | } |
269 | else if (!strcmp (var, "ip-proto")) |
291 | else if (!strcmp (var, "ip-proto")) |
270 | conf.ip_proto = atoi (val); |
292 | conf.ip_proto = atoi (val); |
271 | else if (!strcmp (var, "icmp-type")) |
293 | else if (!strcmp (var, "icmp-type")) |
272 | { |
294 | { |
273 | #if ENABLE_ICMP |
295 | #if ENABLE_ICMP |
274 | conf.icmp_type = atoi (val); |
296 | conf.icmp_type = atoi (val); |
275 | #endif |
297 | #endif |
276 | } |
298 | } |
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299 | else if (!strcmp (var, "chuser")) |
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300 | { |
|
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301 | struct passwd *pw = getpwnam (val); |
|
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302 | if (!pw) |
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303 | return _("user specified for chuser not found"); |
277 | |
304 | |
278 | // per config |
305 | conf.change_uid = pw->pw_uid; |
|
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306 | conf.change_gid = pw->pw_gid; |
|
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307 | } |
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308 | else if (!strcmp (var, "chuid")) |
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309 | conf.change_uid = atoi (val); |
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310 | else if (!strcmp (var, "chgid")) |
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311 | conf.change_gid = atoi (val); |
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312 | else if (!strcmp (var, "chroot")) |
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313 | free (conf.change_root), conf.change_root = strdup (val); |
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314 | |
|
|
315 | // per node |
279 | else if (!strcmp (var, "node")) |
316 | else if (!strcmp (var, "node")) |
280 | { |
317 | { |
281 | parse_argv (); |
318 | node = conf.find_node (val); |
282 | |
319 | |
|
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320 | if (!node) |
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321 | { |
283 | conf.default_node.id++; |
322 | conf.default_node.id++; |
284 | node = new conf_node (conf.default_node); |
323 | node = new conf_node (conf.default_node); |
285 | conf.nodes.push_back (node); |
324 | conf.nodes.push_back (node); |
286 | node->nodename = strdup (val); |
325 | node->nodename = strdup (val); |
287 | |
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288 | { |
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289 | char *fname; |
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290 | FILE *f; |
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291 | |
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292 | asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); |
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293 | |
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294 | f = fopen (fname, "r"); |
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295 | if (f) |
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296 | { |
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297 | node->rsa_key = RSA_new (); |
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298 | |
|
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299 | if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL)) |
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300 | { |
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301 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
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302 | slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
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303 | exit (EXIT_FAILURE); |
|
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304 | } |
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305 | |
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306 | require (RSA_blinding_on (node->rsa_key, 0)); |
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307 | |
|
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308 | fclose (f); |
|
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309 | } |
326 | } |
310 | else |
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311 | { |
|
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312 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno)); |
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313 | |
|
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314 | if (need_keys) |
|
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315 | exit (EXIT_FAILURE); |
|
|
316 | } |
|
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317 | |
|
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318 | free (fname); |
|
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319 | } |
|
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320 | |
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321 | if (::thisnode && !strcmp (node->nodename, ::thisnode)) |
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322 | conf.thisnode = node; |
|
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323 | } |
327 | } |
324 | else if (!strcmp (var, "private-key")) |
328 | else if (!strcmp (var, "private-key")) |
325 | free (conf.prikeyfile), conf.prikeyfile = strdup (val); |
329 | free (conf.prikeyfile), conf.prikeyfile = strdup (val); |
326 | else if (!strcmp (var, "ifpersist")) |
330 | else if (!strcmp (var, "ifpersist")) |
327 | parse_bool (conf.ifpersist, "ifpersist", true, false); |
331 | parse_bool (conf.ifpersist, "ifpersist", true, false); |
… | |
… | |
333 | conf.keepalive = atoi (val); |
337 | conf.keepalive = atoi (val); |
334 | else if (!strcmp (var, "mtu")) |
338 | else if (!strcmp (var, "mtu")) |
335 | conf.mtu = atoi (val); |
339 | conf.mtu = atoi (val); |
336 | else if (!strcmp (var, "nfmark")) |
340 | else if (!strcmp (var, "nfmark")) |
337 | conf.nfmark = atoi (val); |
341 | conf.nfmark = atoi (val); |
|
|
342 | else if (!strcmp (var, "seed-device")) |
|
|
343 | free (conf.seed_dev), conf.seed_dev = strdup (val); |
|
|
344 | else if (!strcmp (var, "seed-interval")) |
|
|
345 | conf.reseed = atoi (val); |
338 | else if (!strcmp (var, "if-up")) |
346 | else if (!strcmp (var, "if-up")) |
339 | free (conf.script_if_up), conf.script_if_up = strdup (val); |
347 | free (conf.script_if_up), conf.script_if_up = strdup (val); |
340 | else if (!strcmp (var, "node-up")) |
348 | else if (!strcmp (var, "node-up")) |
341 | free (conf.script_node_up), conf.script_node_up = strdup (val); |
349 | free (conf.script_node_up), conf.script_node_up = strdup (val); |
|
|
350 | else if (!strcmp (var, "node-change")) |
|
|
351 | free (conf.script_node_change), conf.script_node_change = strdup (val); |
342 | else if (!strcmp (var, "node-down")) |
352 | else if (!strcmp (var, "node-down")) |
343 | free (conf.script_node_down), conf.script_node_down = strdup (val); |
353 | free (conf.script_node_down), conf.script_node_down = strdup (val); |
344 | else if (!strcmp (var, "pid-file")) |
354 | else if (!strcmp (var, "pid-file")) |
345 | free (conf.pidfilename), conf.pidfilename = strdup (val); |
355 | free (conf.pidfilename), conf.pidfilename = strdup (val); |
346 | else if (!strcmp (var, "dns-forw-host")) |
356 | else if (!strcmp (var, "dns-forw-host")) |
… | |
… | |
375 | } |
385 | } |
376 | else if (!strcmp (var, "dns-max-outstanding")) |
386 | else if (!strcmp (var, "dns-max-outstanding")) |
377 | { |
387 | { |
378 | #if ENABLE_DNS |
388 | #if ENABLE_DNS |
379 | conf.dns_max_outstanding = atoi (val); |
389 | conf.dns_max_outstanding = atoi (val); |
|
|
390 | #endif |
|
|
391 | } |
|
|
392 | else if (!strcmp (var, "dns-case-preserving")) |
|
|
393 | { |
|
|
394 | #if ENABLE_DNS |
|
|
395 | parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false); |
380 | #endif |
396 | #endif |
381 | } |
397 | } |
382 | else if (!strcmp (var, "http-proxy-host")) |
398 | else if (!strcmp (var, "http-proxy-host")) |
383 | { |
399 | { |
384 | #if ENABLE_HTTP_PROXY |
400 | #if ENABLE_HTTP_PROXY |
… | |
… | |
440 | else if (!strcmp (val, "always")) |
456 | else if (!strcmp (val, "always")) |
441 | node->connectmode = conf_node::C_ALWAYS; |
457 | node->connectmode = conf_node::C_ALWAYS; |
442 | else if (!strcmp (val, "disabled")) |
458 | else if (!strcmp (val, "disabled")) |
443 | node->connectmode = conf_node::C_DISABLED; |
459 | node->connectmode = conf_node::C_DISABLED; |
444 | else |
460 | else |
445 | return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled'. (ignored)"); |
461 | return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored"); |
446 | } |
462 | } |
447 | else if (!strcmp (var, "inherit-tos")) |
463 | else if (!strcmp (var, "inherit-tos")) |
448 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
464 | parse_bool (node->inherit_tos, "inherit-tos", true, false); |
449 | else if (!strcmp (var, "compress")) |
465 | else if (!strcmp (var, "compress")) |
450 | parse_bool (node->compress, "compress", true, false); |
466 | parse_bool (node->compress, "compress", true, false); |
… | |
… | |
484 | else if (!strcmp (var, "max-queue")) |
500 | else if (!strcmp (var, "max-queue")) |
485 | node->max_queue = atoi (val); |
501 | node->max_queue = atoi (val); |
486 | |
502 | |
487 | // unknown or misplaced |
503 | // unknown or misplaced |
488 | else |
504 | else |
489 | return _("unknown configuration directive. (ignored)"); |
505 | return _("unknown configuration directive - ignored"); |
490 | |
506 | |
491 | return 0; |
507 | return 0; |
492 | } |
508 | } |
493 | |
509 | |
|
|
510 | void |
494 | void conf_node::finalise () |
511 | conf_node::finalise () |
495 | { |
512 | { |
496 | if (max_queue < 1) |
513 | if (max_queue < 1) |
497 | { |
514 | { |
498 | slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename); |
515 | slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename); |
499 | max_queue = 1; |
516 | max_queue = 1; |
… | |
… | |
504 | //slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename); |
521 | //slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename); |
505 | connectmode = C_ALWAYS; |
522 | connectmode = C_ALWAYS; |
506 | } |
523 | } |
507 | } |
524 | } |
508 | |
525 | |
509 | void configuration_parser::parse_argv () |
526 | void |
|
|
527 | configuration_parser::parse_file (const char *fname) |
510 | { |
528 | { |
511 | for (int i = 0; i < argc; ++i) |
529 | if (FILE *f = fopen (fname, "r")) |
512 | { |
530 | { |
513 | char *v = argv [i]; |
531 | char line [2048]; |
|
|
532 | int lineno = 0; |
514 | |
533 | |
515 | if (!*v) |
534 | while (fgets (line, sizeof (line), f)) |
516 | continue; |
|
|
517 | |
|
|
518 | char *enode = v; |
|
|
519 | |
|
|
520 | while (*enode != '.' && *enode > ' ' && *enode != '=' && *enode) |
|
|
521 | enode++; |
|
|
522 | |
|
|
523 | if (*enode != '.') |
|
|
524 | enode = 0; |
|
|
525 | |
|
|
526 | char *wnode = node == &conf.default_node |
|
|
527 | ? 0 |
|
|
528 | : node->nodename; |
|
|
529 | |
|
|
530 | if ((!wnode && !enode) |
|
|
531 | || (wnode && enode && !strncmp (wnode, v, enode - v))) |
|
|
532 | { |
535 | { |
|
|
536 | lineno++; |
|
|
537 | |
533 | const char *warn = parse_line (enode ? enode + 1 : v); |
538 | const char *warn = parse_line (line); |
534 | |
539 | |
535 | if (warn) |
540 | if (warn) |
536 | slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v); |
541 | slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno); |
537 | |
|
|
538 | *v = 0; |
|
|
539 | } |
542 | } |
|
|
543 | |
|
|
544 | fclose (f); |
|
|
545 | } |
|
|
546 | else |
|
|
547 | { |
|
|
548 | slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); |
|
|
549 | exit (EXIT_FAILURE); |
540 | } |
550 | } |
541 | } |
551 | } |
542 | |
552 | |
543 | configuration_parser::configuration_parser (configuration &conf, |
553 | configuration_parser::configuration_parser (configuration &conf, |
544 | bool need_keys, |
554 | bool need_keys, |
545 | int argc, |
555 | int argc, |
546 | char **argv) |
556 | char **argv) |
547 | : conf (conf),need_keys (need_keys), argc (argc), argv (argv) |
557 | : conf (conf), need_keys (need_keys), argc (argc), argv (argv) |
548 | { |
558 | { |
549 | char *fname; |
559 | char *fname; |
550 | FILE *f; |
|
|
551 | |
560 | |
552 | conf.clear (); |
561 | conf.clear (); |
|
|
562 | node = &conf.default_node; |
553 | |
563 | |
554 | asprintf (&fname, "%s/gvpe.conf", confbase); |
564 | asprintf (&fname, "%s/gvpe.conf", confbase); |
555 | f = fopen (fname, "r"); |
565 | parse_file (fname); |
556 | |
|
|
557 | if (f) |
|
|
558 | { |
|
|
559 | char line[16384]; |
|
|
560 | int lineno = 0; |
|
|
561 | node = &conf.default_node; |
|
|
562 | |
|
|
563 | while (fgets (line, sizeof (line), f)) |
|
|
564 | { |
|
|
565 | lineno++; |
|
|
566 | |
|
|
567 | const char *warn = parse_line (line); |
|
|
568 | |
|
|
569 | if (warn) |
|
|
570 | slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno); |
|
|
571 | } |
|
|
572 | |
|
|
573 | fclose (f); |
|
|
574 | |
|
|
575 | parse_argv (); |
|
|
576 | } |
|
|
577 | else |
|
|
578 | { |
|
|
579 | slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno)); |
|
|
580 | exit (EXIT_FAILURE); |
|
|
581 | } |
|
|
582 | |
|
|
583 | free (fname); |
566 | free (fname); |
584 | |
567 | |
585 | fname = conf.config_filename (conf.prikeyfile, "hostkey"); |
568 | fname = conf.config_filename (conf.prikeyfile, "hostkey"); |
586 | |
569 | |
587 | f = fopen (fname, "r"); |
570 | if (FILE *f = fopen (fname, "r")) |
588 | if (f) |
|
|
589 | { |
571 | { |
590 | conf.rsa_key = RSA_new (); |
572 | conf.rsa_key = RSA_new (); |
591 | |
573 | |
592 | if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL)) |
574 | if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL)) |
593 | { |
575 | { |
… | |
… | |
600 | |
582 | |
601 | fclose (f); |
583 | fclose (f); |
602 | } |
584 | } |
603 | else |
585 | else |
604 | { |
586 | { |
605 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); |
|
|
606 | |
|
|
607 | if (need_keys) |
587 | if (need_keys) |
|
|
588 | { |
|
|
589 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno)); |
608 | exit (EXIT_FAILURE); |
590 | exit (EXIT_FAILURE); |
609 | } |
|
|
610 | |
|
|
611 | if (need_keys && ::thisnode |
|
|
612 | && conf.rsa_key && conf.thisnode && conf.thisnode->rsa_key) |
|
|
613 | if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0 |
|
|
614 | || BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0) |
|
|
615 | { |
|
|
616 | slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode); |
|
|
617 | exit (EXIT_FAILURE); |
|
|
618 | } |
591 | } |
|
|
592 | } |
619 | |
593 | |
620 | free (fname); |
594 | free (fname); |
621 | |
595 | |
|
|
596 | fname = conf.config_filename (conf.pidfilename); |
|
|
597 | free (conf.pidfilename); conf.pidfilename = fname; |
|
|
598 | |
622 | for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
599 | for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i) |
|
|
600 | { |
|
|
601 | conf_node *node = *i; |
|
|
602 | char *fname; |
|
|
603 | FILE *f; |
|
|
604 | |
|
|
605 | asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename); |
|
|
606 | |
|
|
607 | f = fopen (fname, "r"); |
|
|
608 | if (f) |
|
|
609 | { |
|
|
610 | node->rsa_key = RSA_new (); |
|
|
611 | |
|
|
612 | if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL)) |
|
|
613 | { |
|
|
614 | ERR_load_RSA_strings (); ERR_load_PEM_strings (); |
|
|
615 | slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0)); |
|
|
616 | exit (EXIT_FAILURE); |
|
|
617 | } |
|
|
618 | |
|
|
619 | require (RSA_blinding_on (node->rsa_key, 0)); |
|
|
620 | |
|
|
621 | fclose (f); |
|
|
622 | } |
|
|
623 | else |
|
|
624 | { |
|
|
625 | slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno)); |
|
|
626 | |
|
|
627 | if (need_keys) |
|
|
628 | exit (EXIT_FAILURE); |
|
|
629 | } |
|
|
630 | |
|
|
631 | free (fname); |
|
|
632 | |
623 | (*i)->finalise (); |
633 | (*i)->finalise (); |
624 | } |
634 | } |
625 | |
635 | |
|
|
636 | if (::thisnode) |
|
|
637 | { |
|
|
638 | conf.thisnode = conf.find_node (::thisnode); |
|
|
639 | |
|
|
640 | if (need_keys) |
|
|
641 | { |
|
|
642 | if (!conf.thisnode) |
|
|
643 | { |
|
|
644 | slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode); |
|
|
645 | exit (EXIT_FAILURE); |
|
|
646 | } |
|
|
647 | |
|
|
648 | if (conf.rsa_key && conf.thisnode->rsa_key) |
|
|
649 | if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0 |
|
|
650 | || BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0) |
|
|
651 | { |
|
|
652 | slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode); |
|
|
653 | exit (EXIT_FAILURE); |
|
|
654 | } |
|
|
655 | } |
|
|
656 | } |
|
|
657 | |
|
|
658 | parse_argv (); |
|
|
659 | } |
|
|
660 | |
|
|
661 | void |
|
|
662 | configuration_parser::parse_argv () |
|
|
663 | { |
|
|
664 | for (int i = 0; i < argc; ++i) |
|
|
665 | { |
|
|
666 | char *v = argv [i]; |
|
|
667 | |
|
|
668 | if (!*v) |
|
|
669 | continue; |
|
|
670 | |
|
|
671 | char *enode = v; |
|
|
672 | |
|
|
673 | while (*enode != '.' && *enode > ' ' && *enode != '=' && *enode) |
|
|
674 | enode++; |
|
|
675 | |
|
|
676 | if (*enode != '.') |
|
|
677 | enode = 0; |
|
|
678 | |
|
|
679 | if (enode) |
|
|
680 | { |
|
|
681 | char *val = strdup (v); |
|
|
682 | val [enode - v] = 0; |
|
|
683 | node = conf.find_node (val); |
|
|
684 | free (val); |
|
|
685 | |
|
|
686 | if (!node) |
|
|
687 | { |
|
|
688 | slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v); |
|
|
689 | continue; |
|
|
690 | } |
|
|
691 | } |
|
|
692 | else |
|
|
693 | node = &conf.default_node; |
|
|
694 | |
|
|
695 | const char *warn = parse_line (enode ? enode + 1 : v); |
|
|
696 | |
|
|
697 | if (warn) |
|
|
698 | slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v); |
|
|
699 | } |
|
|
700 | } |
|
|
701 | |
|
|
702 | char * |
626 | char *configuration::config_filename (const char *name, const char *dflt) |
703 | configuration::config_filename (const char *name, const char *dflt) |
627 | { |
704 | { |
628 | char *fname; |
705 | char *fname; |
629 | |
706 | |
630 | asprintf (&fname, name ? name : dflt, ::thisnode); |
707 | asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>"); |
631 | |
708 | |
632 | if (!ABSOLUTE_PATH (fname)) |
709 | if (!ABSOLUTE_PATH (fname)) |
633 | { |
710 | { |
634 | char *rname = fname; |
711 | char *rname = fname; |
635 | asprintf (&fname, "%s/%s", confbase, rname); |
712 | asprintf (&fname, "%s/%s", confbase, rname); |
636 | free (rname); |
713 | free (rname); |
637 | } |
714 | } |
638 | |
715 | |
639 | return fname; |
716 | return fname; |
|
|
717 | } |
|
|
718 | |
|
|
719 | void |
|
|
720 | conf_node::print () |
|
|
721 | { |
|
|
722 | printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n", |
|
|
723 | id, |
|
|
724 | id >> 8, id & 0xff, |
|
|
725 | compress ? 'Y' : 'N', |
|
|
726 | connectmode == C_ONDEMAND ? "ondemand" |
|
|
727 | : connectmode == C_NEVER ? "never" |
|
|
728 | : connectmode == C_ALWAYS ? "always" |
|
|
729 | : connectmode == C_DISABLED ? "disabled" |
|
|
730 | : "", |
|
|
731 | nodename, |
|
|
732 | protocols, |
|
|
733 | hostname ? hostname : "", |
|
|
734 | hostname ? ":" : "", |
|
|
735 | hostname ? udp_port : 0 |
|
|
736 | ); |
640 | } |
737 | } |
641 | |
738 | |
642 | void |
739 | void |
643 | configuration::print () |
740 | configuration::print () |
644 | { |
741 | { |
… | |
… | |
651 | printf (_("interface: %s\n"), ifname); |
748 | printf (_("interface: %s\n"), ifname); |
652 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
749 | printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>"); |
653 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
750 | printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1); |
654 | printf ("\n"); |
751 | printf ("\n"); |
655 | |
752 | |
656 | printf ("%4s %-17s %s %-8.8s %-10.10s %s\n", |
753 | printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n", |
657 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port")); |
754 | _("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port")); |
658 | |
755 | |
659 | for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i) |
756 | for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i) |
660 | (*i)->print (); |
757 | (*i)->print (); |
661 | |
758 | |
662 | printf ("\n"); |
759 | printf ("\n"); |
… | |
… | |
672 | configuration::~configuration () |
769 | configuration::~configuration () |
673 | { |
770 | { |
674 | cleanup (); |
771 | cleanup (); |
675 | } |
772 | } |
676 | |
773 | |
677 | |
|
|