1 | /* |
1 | /* |
2 | vpn.C -- handle the protocol, encryption, handshaking etc. |
2 | vpn.C -- handle the protocol, encryption, handshaking etc. |
3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
3 | Copyright (C) 2003-2008,2010,2011,2013 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 |
7 | GVPE is free software; you can redistribute it and/or modify it |
8 | it under the terms of the GNU General Public License as published by |
8 | under the terms of the GNU General Public License as published by the |
9 | the Free Software Foundation; either version 2 of the License, or |
9 | Free Software Foundation; either version 3 of the License, or (at your |
10 | (at your option) any later version. |
10 | option) any later version. |
11 | |
11 | |
12 | This program is distributed in the hope that it will be useful, |
12 | This program is distributed in the hope that it will be useful, but |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
15 | GNU General Public License for more details. |
15 | Public License for more details. |
16 | |
16 | |
17 | You should have received a copy of the GNU General Public License |
17 | You should have received a copy of the GNU General Public License along |
18 | along with gvpe; if not, write to the Free Software |
18 | with this program; if not, see <http://www.gnu.org/licenses/>. |
19 | Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | |
|
|
20 | Additional permission under GNU GPL version 3 section 7 |
|
|
21 | |
|
|
22 | If you modify this Program, or any covered work, by linking or |
|
|
23 | combining it with the OpenSSL project's OpenSSL library (or a modified |
|
|
24 | version of that library), containing parts covered by the terms of the |
|
|
25 | OpenSSL or SSLeay licenses, the licensors of this Program grant you |
|
|
26 | additional permission to convey the resulting work. Corresponding |
|
|
27 | Source for a non-source form of such a combination shall include the |
|
|
28 | source code for the parts of OpenSSL used as well as that of the |
|
|
29 | covered work. |
20 | */ |
30 | */ |
21 | |
31 | |
22 | #include "config.h" |
32 | #include "config.h" |
23 | |
33 | |
24 | #include <list> |
34 | #include <list> |
… | |
… | |
28 | #include <cstdlib> |
38 | #include <cstdlib> |
29 | |
39 | |
30 | #include <sys/types.h> |
40 | #include <sys/types.h> |
31 | #include <sys/socket.h> |
41 | #include <sys/socket.h> |
32 | #include <sys/wait.h> |
42 | #include <sys/wait.h> |
|
|
43 | #include <sys/stat.h> |
33 | #include <errno.h> |
44 | #include <errno.h> |
34 | #include <time.h> |
45 | #include <time.h> |
35 | #include <unistd.h> |
46 | #include <unistd.h> |
36 | #include <fcntl.h> |
47 | #include <fcntl.h> |
37 | #include <sys/socket.h> |
48 | #include <sys/socket.h> |
… | |
… | |
42 | |
53 | |
43 | #include "connection.h" |
54 | #include "connection.h" |
44 | #include "util.h" |
55 | #include "util.h" |
45 | #include "vpn.h" |
56 | #include "vpn.h" |
46 | |
57 | |
|
|
58 | using namespace std; |
|
|
59 | |
47 | vpn network; // THE vpn (bad design...) |
60 | vpn network; // THE vpn (bad design...) |
48 | |
61 | |
49 | ///////////////////////////////////////////////////////////////////////////// |
62 | ///////////////////////////////////////////////////////////////////////////// |
50 | |
63 | |
51 | static void inline |
64 | static void inline |
… | |
… | |
65 | { |
78 | { |
66 | // the tunnel device mtu should be the physical mtu - overhead |
79 | // the tunnel device mtu should be the physical mtu - overhead |
67 | // the tricky part is rounding to the cipher key blocksize |
80 | // the tricky part is rounding to the cipher key blocksize |
68 | int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD; |
81 | int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD; |
69 | mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion |
82 | mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion |
70 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
83 | mtu -= mtu % BLOCK_SIZE (CIPHER); // round |
71 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
84 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
72 | |
85 | |
73 | char *env; |
86 | char *env; |
74 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
87 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
75 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
88 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
… | |
… | |
87 | snprintf (ext, 16, "_%d", (*c)->conf->id); |
100 | snprintf (ext, 16, "_%d", (*c)->conf->id); |
88 | (*c)->script_init_env (ext); |
101 | (*c)->script_init_env (ext); |
89 | } |
102 | } |
90 | } |
103 | } |
91 | |
104 | |
|
|
105 | inline const char * |
92 | const char *vpn::script_if_init () |
106 | vpn::script_if_init () |
93 | { |
107 | { |
94 | script_init_env (); |
108 | script_init_env (); |
95 | |
109 | |
96 | return tap->if_up (); |
110 | return tap->if_up (); |
97 | } |
111 | } |
98 | |
112 | |
|
|
113 | inline const char * |
99 | const char *vpn::script_if_up () |
114 | vpn::script_if_up () |
100 | { |
115 | { |
101 | script_init_env (); |
116 | script_init_env (); |
102 | |
117 | |
103 | char *filename; |
118 | return conf.config_filename (::conf.script_if_up, "if-up"); |
104 | asprintf (&filename, |
119 | } |
105 | "%s/%s", |
|
|
106 | confbase, |
|
|
107 | ::conf.script_if_up ? ::conf.script_if_up : "if-up"); |
|
|
108 | |
120 | |
109 | return filename; |
121 | int |
|
|
122 | vpn::setup_socket (u8 prot, int family, int type, int proto) |
|
|
123 | { |
|
|
124 | int fd = socket (family, type, proto); |
|
|
125 | |
|
|
126 | if (fd < 0) |
|
|
127 | { |
|
|
128 | slog (L_ERR, _("unable to create %s socket: %s."), strprotocol (prot), strerror (errno)); |
|
|
129 | return fd; |
|
|
130 | } |
|
|
131 | |
|
|
132 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
133 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
134 | |
|
|
135 | #ifdef SO_MARK |
|
|
136 | if (::conf.nfmark) |
|
|
137 | if (setsockopt (fd, SOL_SOCKET, SO_MARK, &::conf.nfmark, sizeof ::conf.nfmark)) |
|
|
138 | slog (L_WARN, _("unable to set nfmark on %s socket: %s"), strprotocol (prot), strerror (errno)); |
|
|
139 | #endif |
|
|
140 | |
|
|
141 | return fd; |
110 | } |
142 | } |
111 | |
143 | |
112 | int |
144 | int |
113 | vpn::setup () |
145 | vpn::setup () |
114 | { |
146 | { |
|
|
147 | int success = 0; |
|
|
148 | |
115 | ipv4_tos = -1; |
149 | ipv4_tos = -1; |
116 | ipv4_fd = -1; |
150 | ipv4_fd = -1; |
117 | |
151 | |
118 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
152 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
119 | { |
153 | { |
120 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
154 | ipv4_fd = setup_socket (PROT_IPv4, PF_INET, SOCK_RAW, ::conf.ip_proto); |
121 | |
155 | |
122 | if (ipv4_fd < 0) |
156 | if (ipv4_fd < 0) |
123 | return -1; |
157 | return -1; |
124 | |
|
|
125 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
|
|
126 | fcntl (ipv4_fd, F_SETFD, FD_CLOEXEC); |
|
|
127 | |
158 | |
128 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
159 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
129 | // this I really consider a linux bug. I am neither connected |
160 | // this I really consider a linux bug. I am neither connected |
130 | // nor do I fragment myself. Linux still sets DF and doesn't |
161 | // nor do I fragment myself. Linux still sets DF and doesn't |
131 | // fragment for me sometimes. |
162 | // fragment for me sometimes. |
… | |
… | |
137 | |
168 | |
138 | sockinfo si (THISNODE, PROT_IPv4); |
169 | sockinfo si (THISNODE, PROT_IPv4); |
139 | |
170 | |
140 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
171 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
141 | { |
172 | { |
142 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno)); |
173 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s, exiting."), (const char *)si, strerror (errno)); |
143 | exit (EXIT_FAILURE); |
174 | return -1; |
144 | } |
175 | } |
145 | |
176 | |
146 | ipv4_ev_watcher.start (ipv4_fd, EV_READ); |
177 | ipv4_ev_watcher.start (ipv4_fd, EV_READ); |
|
|
178 | ++success; |
147 | } |
179 | } |
|
|
180 | else |
|
|
181 | THISNODE->protocols &= ~PROT_IPv4; |
148 | |
182 | |
149 | udpv4_tos = -1; |
183 | udpv4_tos = -1; |
150 | udpv4_fd = -1; |
184 | udpv4_fd = -1; |
151 | |
185 | |
152 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
186 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
153 | { |
187 | { |
154 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
188 | udpv4_fd = setup_socket (PROT_UDPv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
155 | |
189 | |
156 | if (udpv4_fd < 0) |
190 | if (udpv4_fd < 0) |
157 | return -1; |
191 | return -1; |
158 | |
|
|
159 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
|
|
160 | fcntl (udpv4_fd, F_SETFD, FD_CLOEXEC); |
|
|
161 | |
192 | |
162 | // standard daemon practise... |
193 | // standard daemon practise... |
163 | { |
194 | { |
164 | int oval = 1; |
195 | int oval = 1; |
165 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
196 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
177 | |
208 | |
178 | sockinfo si (THISNODE, PROT_UDPv4); |
209 | sockinfo si (THISNODE, PROT_UDPv4); |
179 | |
210 | |
180 | if (bind (udpv4_fd, si.sav4 (), si.salenv4 ())) |
211 | if (bind (udpv4_fd, si.sav4 (), si.salenv4 ())) |
181 | { |
212 | { |
182 | slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno)); |
213 | slog (L_ERR, _("can't bind udpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
183 | exit (EXIT_FAILURE); |
214 | return -1; |
184 | } |
215 | } |
185 | |
216 | |
186 | udpv4_ev_watcher.start (udpv4_fd, EV_READ); |
217 | udpv4_ev_watcher.start (udpv4_fd, EV_READ); |
|
|
218 | ++success; |
187 | } |
219 | } |
|
|
220 | else |
|
|
221 | THISNODE->protocols &= ~PROT_UDPv4; |
188 | |
222 | |
189 | icmpv4_tos = -1; |
223 | icmpv4_tos = -1; |
190 | icmpv4_fd = -1; |
224 | icmpv4_fd = -1; |
191 | |
225 | |
192 | #if ENABLE_ICMP |
226 | #if ENABLE_ICMP |
193 | if (THISNODE->protocols & PROT_ICMPv4) |
227 | if (THISNODE->protocols & PROT_ICMPv4) |
194 | { |
228 | { |
195 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
229 | icmpv4_fd = setup_socket (PROT_ICMPv4, PF_INET, SOCK_RAW, IPPROTO_ICMP); |
196 | |
230 | |
197 | if (icmpv4_fd < 0) |
231 | if (icmpv4_fd < 0) |
198 | return -1; |
232 | return -1; |
199 | |
|
|
200 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
|
|
201 | fcntl (icmpv4_fd, F_SETFD, FD_CLOEXEC); |
|
|
202 | |
233 | |
203 | #ifdef ICMP_FILTER |
234 | #ifdef ICMP_FILTER |
204 | { |
235 | { |
205 | icmp_filter oval; |
236 | icmp_filter oval; |
206 | oval.data = 0xffffffff; |
237 | oval.data = 0xffffffff; |
… | |
… | |
223 | |
254 | |
224 | sockinfo si (THISNODE, PROT_ICMPv4); |
255 | sockinfo si (THISNODE, PROT_ICMPv4); |
225 | |
256 | |
226 | if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ())) |
257 | if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ())) |
227 | { |
258 | { |
228 | slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno)); |
259 | slog (L_ERR, _("can't bind icmpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
229 | exit (EXIT_FAILURE); |
260 | return -1; |
230 | } |
261 | } |
231 | |
262 | |
232 | icmpv4_ev_watcher.start (icmpv4_fd, EV_READ); |
263 | icmpv4_ev_watcher.start (icmpv4_fd, EV_READ); |
|
|
264 | ++success; |
233 | } |
265 | } |
234 | #endif |
266 | #endif |
235 | |
267 | |
236 | tcpv4_fd = -1; |
268 | tcpv4_fd = -1; |
237 | |
269 | |
238 | #if ENABLE_TCP |
270 | #if ENABLE_TCP |
239 | if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port) |
271 | if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port) |
240 | { |
272 | { |
241 | tcpv4_fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP); |
273 | tcpv4_fd = setup_socket (PROT_TCPv4, PF_INET, SOCK_STREAM, IPPROTO_TCP); |
242 | |
274 | |
243 | if (tcpv4_fd < 0) |
275 | if (tcpv4_fd < 0) |
244 | return -1; |
276 | return -1; |
245 | |
277 | |
246 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
|
|
247 | fcntl (tcpv4_fd, F_SETFD, FD_CLOEXEC); |
|
|
248 | |
|
|
249 | // standard daemon practise... |
278 | // standard daemon practise... |
250 | { |
279 | { |
251 | int oval = 1; |
280 | int oval = 1; |
252 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
281 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
253 | } |
282 | } |
254 | |
283 | |
255 | sockinfo si (THISNODE, PROT_TCPv4); |
284 | sockinfo si (THISNODE, PROT_TCPv4); |
256 | |
285 | |
257 | if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ())) |
286 | if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ())) |
258 | { |
287 | { |
259 | slog (L_ERR, _("can't bind tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
288 | slog (L_ERR, _("can't bind tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
260 | exit (EXIT_FAILURE); |
289 | return -1; |
261 | } |
290 | } |
262 | |
291 | |
263 | if (listen (tcpv4_fd, 5)) |
292 | if (listen (tcpv4_fd, 5)) |
264 | { |
293 | { |
265 | slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
294 | slog (L_ERR, _("can't listen tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
266 | exit (EXIT_FAILURE); |
295 | return -1; |
267 | } |
296 | } |
268 | |
297 | |
269 | tcpv4_ev_watcher.start (tcpv4_fd, EV_READ); |
298 | tcpv4_ev_watcher.start (tcpv4_fd, EV_READ); |
|
|
299 | ++success; |
270 | } |
300 | } |
|
|
301 | else |
|
|
302 | THISNODE->protocols &= ~PROT_TCPv4; |
271 | #endif |
303 | #endif |
272 | |
304 | |
273 | dnsv4_tos = -1; |
305 | dnsv4_tos = -1; |
274 | dnsv4_fd = -1; |
306 | dnsv4_fd = -1; |
275 | |
307 | |
276 | #if ENABLE_DNS |
308 | #if ENABLE_DNS |
277 | if (THISNODE->protocols & PROT_DNSv4) |
309 | if (THISNODE->protocols & PROT_DNSv4) |
278 | { |
310 | { |
279 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
311 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
280 | |
312 | |
281 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
313 | dnsv4_fd = setup_socket (PROT_DNSv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
282 | |
314 | |
283 | if (dnsv4_fd < 0) |
315 | if (dnsv4_fd < 0) |
284 | return -1; |
316 | return -1; |
285 | |
|
|
286 | fcntl (dnsv4_fd, F_SETFL, O_NONBLOCK); |
|
|
287 | fcntl (dnsv4_fd, F_SETFD, FD_CLOEXEC); |
|
|
288 | |
317 | |
289 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
318 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
290 | // this I really consider a linux bug. I am neither connected |
319 | // this I really consider a linux bug. I am neither connected |
291 | // nor do I fragment myself. Linux still sets DF and doesn't |
320 | // nor do I fragment myself. Linux still sets DF and doesn't |
292 | // fragment for me sometimes. |
321 | // fragment for me sometimes. |
… | |
… | |
306 | THISNODE->dns_hostname ? THISNODE->dns_port : 0, |
335 | THISNODE->dns_hostname ? THISNODE->dns_port : 0, |
307 | PROT_DNSv4); |
336 | PROT_DNSv4); |
308 | |
337 | |
309 | if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ())) |
338 | if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ())) |
310 | { |
339 | { |
311 | slog (L_ERR, _("can't bind dnsv4 on %s: %s"), (const char *)si, strerror (errno)); |
340 | slog (L_ERR, _("can't bind dnsv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
312 | exit (EXIT_FAILURE); |
341 | return -1; |
313 | } |
342 | } |
314 | |
343 | |
315 | dnsv4_ev_watcher.start (dnsv4_fd, EV_READ); |
344 | dnsv4_ev_watcher.start (dnsv4_fd, EV_READ); |
|
|
345 | ++success; |
316 | } |
346 | } |
317 | #endif |
347 | #endif |
318 | |
348 | |
319 | ///////////////////////////////////////////////////////////////////////////// |
349 | ///////////////////////////////////////////////////////////////////////////// |
|
|
350 | |
|
|
351 | if (!success) |
|
|
352 | { |
|
|
353 | slog (L_ERR, _("no protocols enabled.")); |
|
|
354 | return -1; |
|
|
355 | } |
320 | |
356 | |
321 | reconnect_all (); |
357 | reconnect_all (); |
322 | |
358 | |
323 | ///////////////////////////////////////////////////////////////////////////// |
359 | ///////////////////////////////////////////////////////////////////////////// |
324 | |
360 | |
325 | tap = new tap_device (); |
361 | tap = new tap_device (); |
326 | if (!tap) //D this, of course, never catches |
362 | if (!tap) //D this, of course, never catches |
327 | { |
363 | { |
328 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
364 | slog (L_ERR, _("cannot create network interface '%s'."), conf.ifname); |
329 | exit (EXIT_FAILURE); |
365 | return -1; |
330 | } |
366 | } |
331 | |
367 | |
332 | fcntl (tap->fd, F_SETFD, FD_CLOEXEC); |
368 | fcntl (tap->fd, F_SETFD, FD_CLOEXEC); |
333 | |
369 | |
|
|
370 | run_script_cb cb; |
|
|
371 | cb.set<vpn, &vpn::script_if_init> (this); |
|
|
372 | |
334 | if (tap->if_up () && |
373 | if (tap->if_up () && |
335 | !run_script (run_script_cb (this, &vpn::script_if_init), true)) |
374 | !run_script (cb, true)) |
336 | { |
375 | { |
337 | slog (L_ERR, _("interface initialization command '%s' failed, exiting."), |
376 | slog (L_ERR, _("interface initialization command '%s' failed."), |
338 | tap->if_up ()); |
377 | tap->if_up ()); |
339 | exit (EXIT_FAILURE); |
378 | return -1; |
340 | } |
|
|
341 | |
|
|
342 | if (!run_script (run_script_cb (this, &vpn::script_if_up), true)) |
|
|
343 | { |
379 | } |
|
|
380 | |
|
|
381 | cb.set<vpn, &vpn::script_if_up> (this); |
|
|
382 | if (!run_script (cb, true)) |
|
|
383 | { |
344 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
384 | slog (L_ERR, _("if-up command execution failed.")); |
345 | exit (EXIT_FAILURE); |
385 | return -1; |
346 | } |
386 | } |
347 | |
387 | |
348 | tap_ev_watcher.start (tap->fd, EV_READ); |
388 | tap_ev_watcher.start (tap->fd, EV_READ); |
349 | |
389 | |
350 | return 0; |
390 | return 0; |
|
|
391 | } |
|
|
392 | |
|
|
393 | bool |
|
|
394 | vpn::drop_privileges () |
|
|
395 | { |
|
|
396 | if (::conf.change_root) |
|
|
397 | { |
|
|
398 | if (!strcmp (::conf.change_root, "/")) |
|
|
399 | { |
|
|
400 | char dir [L_tmpnam]; |
|
|
401 | if (!tmpnam (dir)) |
|
|
402 | { |
|
|
403 | slog (L_CRIT, _("unable to create anonymous root path.")); |
|
|
404 | return false; |
|
|
405 | } |
|
|
406 | |
|
|
407 | if (mkdir (dir, 0700)) |
|
|
408 | { |
|
|
409 | slog (L_CRIT, _("unable to create anonymous root directory.")); |
|
|
410 | return false; |
|
|
411 | } |
|
|
412 | |
|
|
413 | if (chdir (dir)) |
|
|
414 | { |
|
|
415 | slog (L_CRIT, _("unable to change to anonymous root directory.")); |
|
|
416 | return false; |
|
|
417 | } |
|
|
418 | |
|
|
419 | if (rmdir (dir)) |
|
|
420 | slog (L_ERR, _("unable to remove anonymous root directory, continuing.")); |
|
|
421 | } |
|
|
422 | else |
|
|
423 | { |
|
|
424 | if (chdir (::conf.change_root)) |
|
|
425 | { |
|
|
426 | slog (L_CRIT, _("%s: unable to change to specified root directory."), ::conf.change_root); |
|
|
427 | return false; |
|
|
428 | } |
|
|
429 | } |
|
|
430 | |
|
|
431 | if (chroot (".")) |
|
|
432 | { |
|
|
433 | slog (L_CRIT, _("unable to set new root directory.")); |
|
|
434 | return false; |
|
|
435 | } |
|
|
436 | |
|
|
437 | if (chdir ("/")) |
|
|
438 | { |
|
|
439 | slog (L_CRIT, _("unable to set cwd to new root directory.")); |
|
|
440 | return false; |
|
|
441 | } |
|
|
442 | } |
|
|
443 | |
|
|
444 | if (::conf.change_gid) |
|
|
445 | if (setgid (::conf.change_gid)) |
|
|
446 | { |
|
|
447 | slog (L_CRIT, _("unable to change group id to %d."), ::conf.change_gid); |
|
|
448 | return false; |
|
|
449 | } |
|
|
450 | |
|
|
451 | if (::conf.change_uid) |
|
|
452 | if (setuid (::conf.change_uid)) |
|
|
453 | { |
|
|
454 | slog (L_CRIT, _("unable to change user id to %d."), ::conf.change_uid); |
|
|
455 | return false; |
|
|
456 | } |
|
|
457 | |
|
|
458 | return true; |
351 | } |
459 | } |
352 | |
460 | |
353 | bool |
461 | bool |
354 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
462 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
355 | { |
463 | { |
… | |
… | |
423 | { |
531 | { |
424 | // broadcast, this is ugly, but due to the security policy |
532 | // broadcast, this is ugly, but due to the security policy |
425 | // we have to connect to all hosts... |
533 | // we have to connect to all hosts... |
426 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
534 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
427 | if ((*c)->conf != THISNODE) |
535 | if ((*c)->conf != THISNODE) |
428 | (*c)->inject_data_packet (pkt, true); |
536 | (*c)->inject_data_packet (pkt); |
429 | } |
537 | } |
430 | } |
538 | } |
431 | |
539 | |
432 | void |
540 | void |
433 | vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
541 | vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
434 | { |
542 | { |
435 | unsigned int src = pkt->src (); |
543 | unsigned int src = pkt->src (); |
436 | unsigned int dst = pkt->dst (); |
544 | unsigned int dst = pkt->dst (); |
437 | |
545 | |
438 | slog (L_NOISE, _("<<?/%s received possible vpn packet type %d from %d to %d, length %d"), |
546 | slog (L_NOISE, _("<<?/%s received possible vpn packet type %d from %d to %d, length %d."), |
439 | (const char *)rsi, pkt->typ (), pkt->src (), pkt->dst (), pkt->len); |
547 | (const char *)rsi, pkt->typ (), pkt->src (), pkt->dst (), pkt->len); |
440 | |
548 | |
441 | if (src == 0 || src > conns.size () |
549 | if (src == 0 || src > conns.size () |
442 | || dst > conns.size () |
550 | || dst > conns.size () |
443 | || pkt->typ () >= vpn_packet::PT_MAX) |
551 | || pkt->typ () >= vpn_packet::PT_MAX) |
444 | slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)"), |
552 | slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)."), |
445 | (const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ()); |
|
|
446 | else if (dst > conns.size ()) |
|
|
447 | slog (L_WARN, _("(%s): received corrupted packet type %d (src %d, dst %d)"), |
|
|
448 | (const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ()); |
553 | (const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ()); |
449 | else |
554 | else |
450 | { |
555 | { |
451 | connection *c = conns[src - 1]; |
556 | connection *c = conns[src - 1]; |
452 | |
557 | |
453 | if (dst == 0) |
558 | if (dst == 0) |
454 | slog (L_WARN, _("%s(%s): received broadcast (protocol violation)"), |
559 | slog (L_WARN, _("%s(%s): received broadcast (protocol violation)."), |
455 | c->conf->nodename, (const char *)rsi); |
560 | c->conf->nodename, (const char *)rsi); |
456 | else if (dst != THISNODE->id) |
561 | else if (dst != THISNODE->id) |
457 | { |
562 | { |
458 | if (THISNODE->routerprio) |
563 | if (THISNODE->routerprio) |
459 | // the tos setting gets lost here. who cares. |
564 | // the tos setting gets lost here. who cares. |
460 | conns[dst - 1]->inject_vpn_packet (pkt); |
565 | conns[dst - 1]->inject_vpn_packet (pkt); |
461 | else |
566 | else |
462 | slog (L_WARN, |
567 | slog (L_WARN, |
463 | _("%s(%s): forwarding request (=> %s), but we are no router"), |
568 | _("%s(%s): request to forward packet to %s, but we are no router (config mismatch?)."), |
464 | c->conf->nodename, (const char *)rsi, |
569 | c->conf->nodename, (const char *)rsi, |
465 | conns[dst - 1]->conf->nodename); |
570 | conns[dst - 1]->conf->nodename); |
466 | } |
571 | } |
467 | else |
572 | else |
468 | c->recv_vpn_packet (pkt, rsi); |
573 | c->recv_vpn_packet (pkt, rsi); |
… | |
… | |
473 | vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
578 | vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
474 | { |
579 | { |
475 | switch (si.prot) |
580 | switch (si.prot) |
476 | { |
581 | { |
477 | case PROT_IPv4: |
582 | case PROT_IPv4: |
478 | return send_ipv4_packet (pkt, si, tos); |
583 | return send_ipv4_packet (pkt, si, tos); |
479 | |
584 | |
480 | case PROT_UDPv4: |
585 | case PROT_UDPv4: |
481 | return send_udpv4_packet (pkt, si, tos); |
586 | return send_udpv4_packet (pkt, si, tos); |
482 | |
587 | |
483 | #if ENABLE_TCP |
588 | #if ENABLE_TCP |
484 | case PROT_TCPv4: |
589 | case PROT_TCPv4: |
485 | return send_tcpv4_packet (pkt, si, tos); |
590 | return send_tcpv4_packet (pkt, si, tos); |
486 | #endif |
591 | #endif |
487 | #if ENABLE_ICMP |
592 | #if ENABLE_ICMP |
488 | case PROT_ICMPv4: |
593 | case PROT_ICMPv4: |
489 | return send_icmpv4_packet (pkt, si, tos); |
594 | return send_icmpv4_packet (pkt, si, tos); |
490 | #endif |
595 | #endif |
491 | #if ENABLE_DNS |
596 | #if ENABLE_DNS |
492 | case PROT_DNSv4: |
597 | case PROT_DNSv4: |
493 | return send_dnsv4_packet (pkt, si, tos); |
598 | return send_dnsv4_packet (pkt, si, tos); |
494 | #endif |
599 | #endif |
495 | default: |
600 | default: |
496 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si); |
601 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol."), (const char *)si); |
497 | } |
602 | } |
498 | |
603 | |
499 | return false; |
604 | return false; |
500 | } |
605 | } |
501 | |
606 | |
502 | void |
607 | inline void |
503 | vpn::ipv4_ev (ev::io &w, int revents) |
608 | vpn::ipv4_ev (ev::io &w, int revents) |
504 | { |
609 | { |
505 | if (revents & EV_READ) |
610 | if (revents & EV_READ) |
506 | { |
611 | { |
507 | vpn_packet *pkt = new vpn_packet; |
612 | vpn_packet *pkt = new vpn_packet; |
… | |
… | |
516 | if (len > 0) |
621 | if (len > 0) |
517 | { |
622 | { |
518 | pkt->len = len; |
623 | pkt->len = len; |
519 | |
624 | |
520 | // raw sockets deliver the ipv4 header, but don't expect it on sends |
625 | // raw sockets deliver the ipv4 header, but don't expect it on sends |
521 | pkt->skip_hdr (IP_OVERHEAD); |
626 | pkt->skip_hdr (pkt->ipv4_hdr_len ()); |
522 | |
627 | |
523 | recv_vpn_packet (pkt, si); |
628 | recv_vpn_packet (pkt, si); |
524 | } |
629 | } |
525 | else |
630 | else |
526 | { |
631 | { |
527 | // probably ECONNRESET or somesuch |
632 | // probably ECONNRESET or somesuch |
528 | slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno)); |
633 | slog (L_DEBUG, _("%s: %s."), (const char *)si, strerror (errno)); |
529 | } |
634 | } |
530 | |
635 | |
531 | delete pkt; |
636 | delete pkt; |
532 | } |
637 | } |
533 | else |
638 | else |
534 | { |
639 | { |
535 | slog (L_ERR, |
640 | slog (L_ERR, |
536 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
641 | _("FATAL: unknown revents %08x in socket, exiting.\n"), |
537 | revents); |
642 | revents); |
538 | exit (EXIT_FAILURE); |
643 | exit (EXIT_FAILURE); |
539 | } |
644 | } |
540 | } |
645 | } |
541 | |
646 | |
542 | #if ENABLE_ICMP |
647 | #if ENABLE_ICMP |
543 | void |
648 | inline void |
544 | vpn::icmpv4_ev (ev::io &w, int revents) |
649 | vpn::icmpv4_ev (ev::io &w, int revents) |
545 | { |
650 | { |
546 | if (revents & EV_READ) |
651 | if (revents & EV_READ) |
547 | { |
652 | { |
548 | vpn_packet *pkt = new vpn_packet; |
653 | vpn_packet *pkt = new vpn_packet; |
… | |
… | |
563 | if (hdr->type == ::conf.icmp_type |
668 | if (hdr->type == ::conf.icmp_type |
564 | && hdr->code == 255) |
669 | && hdr->code == 255) |
565 | { |
670 | { |
566 | // raw sockets deliver the ipv4, but don't expect it on sends |
671 | // raw sockets deliver the ipv4, but don't expect it on sends |
567 | // this is slow, but... |
672 | // this is slow, but... |
568 | pkt->skip_hdr (ICMP_OVERHEAD); |
673 | pkt->skip_hdr (pkt->ipv4_hdr_len () + (ICMP_OVERHEAD - IP_OVERHEAD)); |
569 | |
674 | |
570 | recv_vpn_packet (pkt, si); |
675 | recv_vpn_packet (pkt, si); |
571 | } |
676 | } |
572 | } |
677 | } |
573 | else |
678 | else |
574 | { |
679 | { |
575 | // probably ECONNRESET or somesuch |
680 | // probably ECONNRESET or somesuch |
576 | slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno)); |
681 | slog (L_DEBUG, _("%s: %s."), (const char *)si, strerror (errno)); |
577 | } |
682 | } |
578 | |
683 | |
579 | delete pkt; |
684 | delete pkt; |
580 | } |
685 | } |
581 | else |
686 | else |
582 | { |
687 | { |
583 | slog (L_ERR, |
688 | slog (L_ERR, |
584 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
689 | _("FATAL: unknown revents %08x in socket, exiting.\n"), |
585 | revents); |
690 | revents); |
586 | exit (EXIT_FAILURE); |
691 | exit (EXIT_FAILURE); |
587 | } |
692 | } |
588 | } |
693 | } |
589 | #endif |
694 | #endif |
590 | |
695 | |
591 | void |
696 | inline void |
592 | vpn::udpv4_ev (ev::io &w, int revents) |
697 | vpn::udpv4_ev (ev::io &w, int revents) |
593 | { |
698 | { |
594 | if (revents & EV_READ) |
699 | if (revents & EV_READ) |
595 | { |
700 | { |
596 | vpn_packet *pkt = new vpn_packet; |
701 | vpn_packet *pkt = new vpn_packet; |
… | |
… | |
609 | recv_vpn_packet (pkt, si); |
714 | recv_vpn_packet (pkt, si); |
610 | } |
715 | } |
611 | else |
716 | else |
612 | { |
717 | { |
613 | // probably ECONNRESET or somesuch |
718 | // probably ECONNRESET or somesuch |
614 | slog (L_DEBUG, _("%s: fd %d, %s"), (const char *)si, w.fd, strerror (errno)); |
719 | slog (L_DEBUG, _("%s: fd %d, %s."), (const char *)si, w.fd, strerror (errno)); |
615 | } |
720 | } |
616 | |
721 | |
617 | delete pkt; |
722 | delete pkt; |
618 | } |
723 | } |
619 | else |
724 | else |
620 | { |
725 | { |
621 | slog (L_ERR, |
726 | slog (L_ERR, |
622 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
727 | _("FATAL: unknown revents %08x in socket, exiting.\n"), |
623 | revents); |
728 | revents); |
624 | exit (EXIT_FAILURE); |
729 | exit (EXIT_FAILURE); |
625 | } |
730 | } |
626 | } |
731 | } |
627 | |
732 | |
628 | void |
733 | inline void |
629 | vpn::tap_ev (ev::io &w, int revents) |
734 | vpn::tap_ev (ev::io &w, int revents) |
630 | { |
735 | { |
631 | if (revents & EV_READ) |
736 | if (revents & EV_READ) |
632 | { |
737 | { |
633 | /* process data */ |
738 | /* process data */ |
… | |
… | |
665 | } |
770 | } |
666 | else |
771 | else |
667 | abort (); |
772 | abort (); |
668 | } |
773 | } |
669 | |
774 | |
670 | void |
775 | inline void |
671 | vpn::event_cb (ev::timer &w, int) |
776 | vpn::event_cb (ev::timer &w, int) |
672 | { |
777 | { |
673 | if (events) |
778 | if (events) |
674 | { |
779 | { |
675 | if (events & EVENT_SHUTDOWN) |
780 | if (events & EVENT_SHUTDOWN) |
676 | { |
781 | { |
677 | slog (L_INFO, _("preparing shutdown...")); |
782 | slog (L_INFO, _("preparing shutdown...")); |
678 | |
783 | |
679 | shutdown_all (); |
784 | shutdown_all (); |
680 | remove_pid (conf.pidfilename); |
785 | remove_pid (conf.pidfilename); |
681 | slog (L_INFO, _("terminating")); |
786 | slog (L_INFO, _("exiting.")); |
682 | exit (EXIT_SUCCESS); |
787 | exit (EXIT_SUCCESS); |
683 | } |
788 | } |
684 | |
789 | |
685 | if (events & EVENT_RECONNECT) |
790 | if (events & EVENT_RECONNECT) |
686 | { |
791 | { |
687 | slog (L_INFO, _("forced reconnect")); |
792 | slog (L_INFO, _("forced reconnect.")); |
688 | |
793 | |
689 | reconnect_all (); |
794 | reconnect_all (); |
690 | } |
795 | } |
691 | |
796 | |
692 | events = 0; |
797 | events = 0; |
… | |
… | |
708 | |
813 | |
709 | conns.clear (); |
814 | conns.clear (); |
710 | |
815 | |
711 | connection_init (); |
816 | connection_init (); |
712 | |
817 | |
713 | for (configuration::node_vector::iterator i = conf.nodes.begin (); |
818 | for (configuration::node_vector::iterator i = conf.nodes.begin (); i != conf.nodes.end (); ++i) |
714 | i != conf.nodes.end (); ++i) |
819 | conns.push_back (new connection (this, *i)); |
715 | { |
820 | |
716 | connection *conn = new connection (this, *i); |
821 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
717 | conns.push_back (conn); |
|
|
718 | conn->establish_connection (); |
822 | (*c)->establish_connection (); |
719 | } |
|
|
720 | } |
823 | } |
721 | |
824 | |
722 | connection *vpn::find_router () |
825 | bool |
|
|
826 | vpn::can_direct (conf_node *src, conf_node *dst) const |
723 | { |
827 | { |
724 | u32 prio = 1; |
828 | return src != dst |
|
|
829 | && src->may_direct (dst) |
|
|
830 | && dst->may_direct (src) |
|
|
831 | && (((src->protocols & dst->protocols) && src->connectmode == conf_node::C_ALWAYS) |
|
|
832 | || (src->protocols & dst->connectable_protocols ())); |
|
|
833 | } |
|
|
834 | |
|
|
835 | // only works for indirect and routed connections: find a router |
|
|
836 | // from THISNODE to dst |
|
|
837 | connection * |
|
|
838 | vpn::find_router_for (const connection *dst) |
|
|
839 | { |
725 | connection *router = 0; |
840 | connection *router = 0; |
726 | |
841 | |
|
|
842 | // first try to find a router with a direct connection, route there |
|
|
843 | // regardless of any other considerations. |
|
|
844 | { |
|
|
845 | u32 prio = 1; |
|
|
846 | |
|
|
847 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
|
|
848 | { |
|
|
849 | connection *c = *i; |
|
|
850 | |
|
|
851 | if (c->conf->routerprio > prio |
|
|
852 | && c->conf != THISNODE |
|
|
853 | && can_direct (c->conf, dst->conf) |
|
|
854 | && c->ictx && c->octx) |
|
|
855 | { |
|
|
856 | prio = c->conf->routerprio; |
|
|
857 | router = c; |
|
|
858 | } |
|
|
859 | } |
|
|
860 | } |
|
|
861 | |
|
|
862 | if (router) |
|
|
863 | return router; |
|
|
864 | |
|
|
865 | // second try find the router with the highest priority, higher than ours |
|
|
866 | { |
|
|
867 | u32 prio = THISNODE->routerprio ? THISNODE->routerprio : 1; |
|
|
868 | |
|
|
869 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
|
|
870 | { |
|
|
871 | connection *c = *i; |
|
|
872 | |
|
|
873 | if (c->conf->routerprio > prio |
|
|
874 | && c != dst |
|
|
875 | && c->conf != THISNODE |
|
|
876 | && c->ictx && c->octx) |
|
|
877 | { |
|
|
878 | prio = c->conf->routerprio; |
|
|
879 | router = c; |
|
|
880 | } |
|
|
881 | } |
|
|
882 | } |
|
|
883 | |
|
|
884 | return router; |
|
|
885 | } |
|
|
886 | |
|
|
887 | void |
|
|
888 | vpn::connection_established (connection *c) |
|
|
889 | { |
727 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
890 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
728 | { |
891 | { |
729 | connection *c = *i; |
892 | connection *o = *i; |
730 | |
893 | |
731 | if (c->conf->routerprio > prio |
894 | if (o->si.valid () |
732 | && c->connectmode == conf_node::C_ALWAYS // so we don't drop the connection if in use |
895 | && c->si != o->si |
733 | && c->ictx && c->octx |
896 | && c == find_router_for (o) |
734 | && c->conf != THISNODE) // redundant, since ictx==octx==0 always on thisnode |
897 | && !can_direct (THISNODE, o->conf)) |
735 | { |
|
|
736 | prio = c->conf->routerprio; |
|
|
737 | router = c; |
|
|
738 | } |
898 | { |
|
|
899 | slog (L_DEBUG, _("%s: can now route packets via %s, re-keying connection."), |
|
|
900 | o->conf->nodename, c->conf->nodename); |
|
|
901 | o->rekey (); |
|
|
902 | } |
739 | } |
903 | } |
740 | |
|
|
741 | return router; |
|
|
742 | } |
904 | } |
743 | |
905 | |
|
|
906 | void |
744 | void vpn::send_connect_request (int id) |
907 | vpn::send_connect_request (connection *c) |
745 | { |
908 | { |
746 | connection *c = find_router (); |
909 | connection *r = find_router_for (c); |
747 | |
910 | |
748 | if (c) |
911 | if (r) |
|
|
912 | { |
|
|
913 | slog (L_TRACE, _("%s: no address known, sending mediated connection request via %s."), |
|
|
914 | c->conf->nodename, r->conf->nodename); |
749 | c->send_connect_request (id); |
915 | r->send_connect_request (c->conf->id); |
|
|
916 | } |
750 | else |
917 | else |
751 | // no router found, aggressively connect to all routers |
918 | slog (L_DEBUG, _("%s: no way to connect and no router found: unable to connect at this time."), |
752 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
919 | c->conf->nodename); |
753 | if ((*i)->conf->routerprio && (*i)->conf != THISNODE) |
|
|
754 | (*i)->establish_connection (); |
|
|
755 | } |
920 | } |
756 | |
921 | |
757 | void |
922 | void |
758 | connection::dump_status () |
923 | connection::dump_status () |
759 | { |
924 | { |
760 | slog (L_NOTICE, _("node %s (id %d)"), conf->nodename, conf->id); |
925 | slog (L_NOTICE, _("node %s (id %d)"), conf->nodename, conf->id); |
761 | slog (L_NOTICE, _(" connectmode %d (%d) / sockaddr %s / minor %d"), |
926 | slog (L_NOTICE, _(" connectmode %d (%d) / sockaddr %s / minor %d"), |
762 | connectmode, conf->connectmode, (const char *)si, (int)prot_minor); |
927 | connectmode, conf->connectmode, (const char *)si, (int)prot_minor); |
763 | slog (L_NOTICE, _(" ictx/octx %08lx/%08lx / oseqno %d / retry_cnt %d"), |
928 | slog (L_NOTICE, _(" ictx/octx %08lx/%08lx / oseqno %d / retry_cnt %d"), |
764 | (long)ictx, (long)octx, (int)oseqno, (int)retry_cnt); |
929 | (long)ictx, (long)octx, (int)oseqno, (int)retry_cnt); |
765 | slog (L_NOTICE, _(" establish_conn %ld / rekey %ld / keepalive %ld"), |
|
|
766 | (long)(establish_connection.at), (long)(rekey.at), (long)(keepalive.at)); |
|
|
767 | } |
930 | } |
768 | |
931 | |
769 | void |
932 | void |
770 | vpn::dump_status () |
933 | vpn::dump_status () |
771 | { |
934 | { |
… | |
… | |
776 | |
939 | |
777 | slog (L_NOTICE, _("END status dump")); |
940 | slog (L_NOTICE, _("END status dump")); |
778 | } |
941 | } |
779 | |
942 | |
780 | vpn::vpn (void) |
943 | vpn::vpn (void) |
|
|
944 | { |
781 | : event (this, &vpn::event_cb) |
945 | event .set<vpn, &vpn::event_cb > (this); |
782 | , udpv4_ev_watcher (this, &vpn::udpv4_ev) |
946 | udpv4_ev_watcher .set<vpn, &vpn::udpv4_ev > (this); |
783 | , ipv4_ev_watcher (this, &vpn::ipv4_ev) |
947 | ipv4_ev_watcher .set<vpn, &vpn::ipv4_ev > (this); |
784 | #if ENABLE_TCP |
948 | #if ENABLE_TCP |
785 | , tcpv4_ev_watcher (this, &vpn::tcpv4_ev) |
949 | tcpv4_ev_watcher .set<vpn, &vpn::tcpv4_ev > (this); |
786 | #endif |
950 | #endif |
787 | #if ENABLE_ICMP |
951 | #if ENABLE_ICMP |
788 | , icmpv4_ev_watcher(this, &vpn::icmpv4_ev) |
952 | icmpv4_ev_watcher.set<vpn, &vpn::icmpv4_ev> (this); |
789 | #endif |
953 | #endif |
790 | #if ENABLE_DNS |
954 | #if ENABLE_DNS |
791 | , dnsv4_ev_watcher (this, &vpn::dnsv4_ev) |
955 | dnsv4_ev_watcher .set<vpn, &vpn::dnsv4_ev > (this); |
792 | #endif |
956 | #endif |
793 | , tap_ev_watcher (this, &vpn::tap_ev) |
957 | tap_ev_watcher .set<vpn, &vpn::tap_ev > (this); |
794 | { |
|
|
795 | } |
958 | } |
796 | |
959 | |
797 | vpn::~vpn () |
960 | vpn::~vpn () |
798 | { |
961 | { |
799 | } |
962 | } |