1 | /* |
1 | /* |
2 | vped.C -- the main file for gvpe |
2 | gvpe.C -- the main file for gvpe |
3 | Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl> |
3 | Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl> |
4 | 2000-2002 Guus Sliepen <guus@sliepen.eu.org> |
4 | 2000-2002 Guus Sliepen <guus@sliepen.eu.org> |
5 | 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
5 | 2003-2011 Marc Lehmann <gvpe@schmorp.de> |
6 | |
6 | |
7 | This file is part of GVPE. |
7 | This file is part of GVPE. |
8 | |
8 | |
9 | GVPE is free software; you can redistribute it and/or modify |
9 | GVPE is free software; you can redistribute it and/or modify it |
10 | it under the terms of the GNU General Public License as published by |
10 | under the terms of the GNU General Public License as published by the |
11 | the Free Software Foundation; either version 2 of the License, or |
11 | Free Software Foundation; either version 3 of the License, or (at your |
12 | (at your option) any later version. |
12 | option) any later version. |
13 | |
13 | |
14 | This program is distributed in the hope that it will be useful, |
14 | This program is distributed in the hope that it will be useful, but |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
17 | GNU General Public License for more details. |
17 | Public License for more details. |
18 | |
18 | |
19 | You should have received a copy of the GNU General Public License |
19 | You should have received a copy of the GNU General Public License along |
20 | along with gvpe; if not, write to the Free Software |
20 | with this program; if not, see <http://www.gnu.org/licenses/>. |
21 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
21 | |
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22 | Additional permission under GNU GPL version 3 section 7 |
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23 | |
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24 | If you modify this Program, or any covered work, by linking or |
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25 | combining it with the OpenSSL project's OpenSSL library (or a modified |
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26 | version of that library), containing parts covered by the terms of the |
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27 | OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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28 | additional permission to convey the resulting work. Corresponding |
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29 | Source for a non-source form of such a combination shall include the |
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30 | source code for the parts of OpenSSL used as well as that of the |
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31 | covered work. |
22 | */ |
32 | */ |
23 | |
33 | |
24 | #include "config.h" |
34 | #include "config.h" |
25 | |
35 | |
26 | #include <cstdio> |
36 | #include <cstdio> |
… | |
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48 | |
58 | |
49 | #include "conf.h" |
59 | #include "conf.h" |
50 | #include "slog.h" |
60 | #include "slog.h" |
51 | #include "util.h" |
61 | #include "util.h" |
52 | #include "vpn.h" |
62 | #include "vpn.h" |
53 | #include "iom.h" |
63 | #include "ev_cpp.h" |
54 | |
64 | |
55 | static loglevel llevel = L_NONE; |
65 | static loglevel llevel = L_NONE; |
56 | |
66 | |
57 | /* If nonzero, display usage information and exit. */ |
67 | /* If nonzero, display usage information and exit. */ |
58 | static int show_help; |
68 | static int show_help; |
… | |
… | |
65 | |
75 | |
66 | /* If zero, don't detach from the terminal. */ |
76 | /* If zero, don't detach from the terminal. */ |
67 | static int do_detach = 1; |
77 | static int do_detach = 1; |
68 | |
78 | |
69 | static struct option const long_options[] = |
79 | static struct option const long_options[] = |
70 | { |
80 | { |
71 | {"config", required_argument, NULL, 'c'}, |
81 | {"config", required_argument, NULL, 'c'}, |
72 | {"help", no_argument, &show_help, 1}, |
82 | {"help", no_argument, &show_help, 1}, |
73 | {"version", no_argument, &show_version, 1}, |
83 | {"version", no_argument, &show_version, 1}, |
74 | {"no-detach", no_argument, &do_detach, 0}, |
84 | {"no-detach", no_argument, &do_detach, 0}, |
75 | {"log-level", required_argument, NULL, 'l'}, |
85 | {"log-level", required_argument, NULL, 'l'}, |
76 | {"mlock", no_argument, &do_mlock, 1}, |
86 | {"mlock", no_argument, &do_mlock, 1}, |
77 | {NULL, 0, NULL, 0} |
87 | {NULL, 0, NULL, 0} |
78 | }; |
88 | }; |
79 | |
89 | |
80 | static void |
90 | static void |
81 | usage (int status) |
91 | usage (int status) |
82 | { |
92 | { |
83 | if (status != 0) |
93 | if (status != 0) |
… | |
… | |
87 | printf (_("Usage: %s [option]... NODENAME\n\n"), get_identity ()); |
97 | printf (_("Usage: %s [option]... NODENAME\n\n"), get_identity ()); |
88 | printf (_ |
98 | printf (_ |
89 | (" -c, --config=DIR Read configuration options from DIR.\n" |
99 | (" -c, --config=DIR Read configuration options from DIR.\n" |
90 | " -D, --no-detach Don't fork and detach.\n" |
100 | " -D, --no-detach Don't fork and detach.\n" |
91 | " -l, --log-level=LEVEL Set logging level (info, notice, warn are common).\n" |
101 | " -l, --log-level=LEVEL Set logging level (info, notice, warn are common).\n" |
92 | " -L, --mlock Lock tinc into main memory.\n" |
102 | " -L, --mlock Lock gvpe into main memory.\n" |
93 | " --help Display this help and exit.\n" |
103 | " --help Display this help and exit.\n" |
94 | " --version Output version information and exit.\n\n")); |
104 | " --version Output version information and exit.\n\n")); |
95 | printf (_("Report bugs to <vpe@plan9.de>.\n")); |
105 | printf (_("Report bugs to <gvpe@schmorp.de>.\n")); |
96 | } |
106 | } |
97 | |
107 | |
98 | exit (status); |
108 | exit (status); |
99 | } |
109 | } |
100 | |
110 | |
101 | void |
111 | static void |
102 | parse_options (int argc, char **argv, char **envp) |
112 | parse_options (int argc, char **argv, char **envp) |
103 | { |
113 | { |
104 | int r; |
114 | int r; |
105 | int option_index = 0; |
115 | int option_index = 0; |
106 | |
116 | |
107 | while ((r = getopt_long (argc, argv, "-c:DLl:", long_options, &option_index)) != EOF) |
117 | while ((r = getopt_long (argc, argv, "c:DLl:", long_options, &option_index)) != EOF) |
108 | { |
118 | { |
109 | switch (r) |
119 | switch (r) |
110 | { |
120 | { |
111 | case 0: /* long option */ |
121 | case 0: /* long option */ |
112 | break; |
122 | break; |
113 | |
123 | |
114 | case 1: /* this node name */ |
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115 | thisnode = strdup (optarg); |
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116 | break; |
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117 | |
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118 | case 'c': /* config file */ |
124 | case 'c': /* config file */ |
119 | confbase = strdup (optarg); |
125 | confbase = strdup (optarg); |
120 | break; |
126 | break; |
121 | |
127 | |
122 | case 'D': /* no detach */ |
128 | case 'D': /* no detach */ |
… | |
… | |
143 | break; |
149 | break; |
144 | } |
150 | } |
145 | } |
151 | } |
146 | } |
152 | } |
147 | |
153 | |
148 | /* |
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149 | Close network connections, and terminate neatly |
154 | // close network connections, and terminate neatly |
150 | */ |
155 | static void |
151 | void cleanup_and_exit(int c) |
156 | cleanup_and_exit (int c) |
152 | { |
157 | { |
153 | network.shutdown_all (); |
158 | network.shutdown_all (); |
154 | |
159 | |
155 | if (conf.pidfilename) |
160 | if (conf.pidfilename) |
156 | remove_pid (conf.pidfilename); |
161 | remove_pid (conf.pidfilename); |
… | |
… | |
158 | slog (L_INFO, _("terminating with exit code %d"), c); |
163 | slog (L_INFO, _("terminating with exit code %d"), c); |
159 | |
164 | |
160 | exit (c); |
165 | exit (c); |
161 | } |
166 | } |
162 | |
167 | |
163 | /* |
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164 | Signal handlers. |
168 | // signal handlers |
165 | */ |
169 | static RETSIGTYPE |
166 | RETSIGTYPE |
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167 | sigterm_handler (int a) |
170 | sigterm_handler (int a) |
168 | { |
171 | { |
169 | network.events |= vpn::EVENT_SHUTDOWN; |
172 | network.events |= vpn::EVENT_SHUTDOWN; |
170 | network.event.start (0); |
173 | network.event.start (); |
171 | } |
174 | } |
172 | |
175 | |
173 | RETSIGTYPE |
176 | static RETSIGTYPE |
174 | sighup_handler (int a) |
177 | sighup_handler (int a) |
175 | { |
178 | { |
176 | network.events |= vpn::EVENT_RECONNECT; |
179 | network.events |= vpn::EVENT_RECONNECT; |
177 | network.event.start (0); |
180 | network.event.start (); |
178 | } |
181 | } |
179 | |
182 | |
180 | RETSIGTYPE |
183 | static RETSIGTYPE |
181 | sigusr1_handler (int a) |
184 | sigusr1_handler (int a) |
182 | { |
185 | { |
183 | network.dump_status (); |
186 | network.dump_status (); |
184 | } |
187 | } |
185 | |
188 | |
186 | RETSIGTYPE |
189 | static RETSIGTYPE |
187 | sigusr2_handler (int a) |
190 | sigusr2_handler (int a) |
188 | { |
191 | { |
189 | } |
192 | } |
190 | |
193 | |
191 | void |
194 | static void |
192 | setup_signals (void) |
195 | setup_signals (void) |
193 | { |
196 | { |
194 | struct sigaction act; |
197 | struct sigaction act; |
195 | |
198 | |
196 | sigfillset (&act.sa_mask); |
199 | sigfillset (&act.sa_mask); |
197 | act.sa_flags = 0; |
200 | act.sa_flags = 0; |
198 | |
201 | |
199 | act.sa_handler = sighup_handler; sigaction (SIGHUP , &act, NULL); |
202 | act.sa_handler = sighup_handler; sigaction (SIGHUP , &act, NULL); |
200 | act.sa_handler = sigusr1_handler; sigaction (SIGUSR1, &act, NULL); |
203 | act.sa_handler = sigusr1_handler; sigaction (SIGUSR1, &act, NULL); |
201 | act.sa_handler = sigusr2_handler; sigaction (SIGUSR2, &act, NULL); |
204 | act.sa_handler = sigusr2_handler; sigaction (SIGUSR2, &act, NULL); |
202 | act.sa_handler = SIG_IGN; sigaction (SIGCHLD, &act, NULL); |
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203 | act.sa_handler = SIG_IGN; sigaction (SIGPIPE, &act, NULL); |
205 | act.sa_handler = SIG_IGN; sigaction (SIGPIPE, &act, NULL); |
204 | act.sa_flags = SA_RESETHAND; |
206 | act.sa_flags = SA_RESETHAND; |
205 | act.sa_handler = sigterm_handler; sigaction (SIGINT , &act, NULL); |
207 | act.sa_handler = sigterm_handler; sigaction (SIGINT , &act, NULL); |
206 | act.sa_handler = sigterm_handler; sigaction (SIGTERM, &act, NULL); |
208 | act.sa_handler = sigterm_handler; sigaction (SIGTERM, &act, NULL); |
207 | } |
209 | } |
208 | |
210 | |
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211 | struct Xob {//D |
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212 | void wcbx () |
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213 | { |
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214 | printf ("wcbx %p\n", pthread_self()); |
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215 | } |
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216 | void dcbx () |
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217 | { |
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218 | printf ("dcbx %p\n", pthread_self()); |
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219 | } |
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220 | }; |
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221 | |
209 | int |
222 | int |
210 | main (int argc, char **argv, char **envp) |
223 | main (int argc, char **argv, char **envp) |
211 | { |
224 | { |
212 | ERR_load_crypto_strings (); // we have the RAM |
225 | ERR_load_crypto_strings (); // we have the RAM |
213 | |
226 | |
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219 | bindtextdomain (PACKAGE, LOCALEDIR); |
232 | bindtextdomain (PACKAGE, LOCALEDIR); |
220 | textdomain (PACKAGE); |
233 | textdomain (PACKAGE); |
221 | |
234 | |
222 | parse_options (argc, argv, envp); |
235 | parse_options (argc, argv, envp); |
223 | |
236 | |
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237 | argc -= optind; |
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238 | argv += optind; |
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239 | |
224 | if (show_version) |
240 | if (show_version) |
225 | { |
241 | { |
226 | printf (_("%s version %s (built %s %s, protocol %d.%d)\n"), get_identity (), |
242 | printf (_("%s version %s (built %s %s, protocol version %d.%d)\n"), get_identity (), |
227 | VERSION, __DATE__, __TIME__, PROTOCOL_MAJOR, PROTOCOL_MINOR); |
243 | VERSION, __DATE__, __TIME__, PROTOCOL_MAJOR, PROTOCOL_MINOR); |
228 | printf (_("Built with kernel interface %s/%s.\n"), IFTYPE, IFSUBTYPE); |
244 | printf (_("Built with kernel interface %s/%s.\n"), IFTYPE, IFSUBTYPE); |
229 | printf (_ |
245 | printf (_ |
230 | ("Copyright (C) 2003 Marc Lehmann <vpe@plan9.de> and others.\n" |
246 | ("Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> and others.\n" |
231 | "See the AUTHORS file for a complete list.\n\n" |
247 | "See the AUTHORS file for a complete list.\n\n" |
232 | "tinc comes with ABSOLUTELY NO WARRANTY. This is free software,\n" |
248 | "GVPE comes with ABSOLUTELY NO WARRANTY. This is free software,\n" |
233 | "and you are welcome to redistribute it under certain conditions;\n" |
249 | "and you are welcome to redistribute it under certain conditions;\n" |
234 | "see the file COPYING for details.\n")); |
250 | "see the file COPYING for details.\n")); |
235 | |
251 | |
236 | return 0; |
252 | return 0; |
237 | } |
253 | } |
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247 | if (do_mlock) |
263 | if (do_mlock) |
248 | if (mlockall (MCL_CURRENT | MCL_FUTURE)) |
264 | if (mlockall (MCL_CURRENT | MCL_FUTURE)) |
249 | slog (L_ERR, _("system call `%s' failed: %s"), "mlockall", strerror (errno)); |
265 | slog (L_ERR, _("system call `%s' failed: %s"), "mlockall", strerror (errno)); |
250 | #endif |
266 | #endif |
251 | |
267 | |
252 | conf.read_config (true); |
268 | if (argc >= 1) |
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269 | { |
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270 | thisnode = *argv++; |
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271 | argc--; |
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272 | } |
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273 | |
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274 | if (!ev_default_loop (0)) |
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275 | { |
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276 | slog (L_ERR, _("unable to initialise the event loop (bad $LIBEV_METHODS?)")); |
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277 | exit (EXIT_FAILURE); |
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278 | } |
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279 | |
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280 | { |
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281 | configuration_parser (conf, true, argc, argv); |
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282 | } |
253 | |
283 | |
254 | set_loglevel (llevel != L_NONE ? llevel : conf.llevel); |
284 | set_loglevel (llevel != L_NONE ? llevel : conf.llevel); |
255 | |
285 | |
256 | RAND_load_file ("/dev/urandom", 1024); |
286 | RAND_load_file ("/dev/urandom", 1024); |
257 | |
287 | |
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267 | |
297 | |
268 | setup_signals (); |
298 | setup_signals (); |
269 | |
299 | |
270 | if (!network.setup ()) |
300 | if (!network.setup ()) |
271 | { |
301 | { |
272 | io_manager::loop (); |
302 | ev_run (EV_DEFAULT_ 0); |
273 | cleanup_and_exit (EXIT_FAILURE); |
303 | cleanup_and_exit (EXIT_FAILURE); |
274 | } |
304 | } |
275 | |
305 | |
276 | slog (L_ERR, _("unable to setup network, unrecoverable error, exiting.")); |
306 | slog (L_ERR, _("unrecoverable error while setting up network, exiting.")); |
277 | cleanup_and_exit (EXIT_FAILURE); |
307 | cleanup_and_exit (EXIT_FAILURE); |
278 | } |
308 | } |
279 | |
309 | |