1 | /* |
1 | /* |
2 | vpn.C -- handle the protocol, encryption, handshaking etc. |
2 | vpn.C -- handle the protocol, encryption, handshaking etc. |
|
|
3 | Copyright (C) 2003-2007 Marc Lehmann <gvpe@schmorp.de> |
3 | |
4 | |
|
|
5 | This file is part of GVPE. |
|
|
6 | |
4 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify |
5 | it under the terms of the GNU General Public License as published by |
8 | it under the terms of the GNU General Public License as published by |
6 | the Free Software Foundation; either version 2 of the License, or |
9 | the Free Software Foundation; either version 2 of the License, or |
7 | (at your option) any later version. |
10 | (at your option) any later version. |
8 | |
11 | |
9 | 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, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
13 | |
16 | |
14 | 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 |
15 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
16 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
17 | */ |
20 | */ |
18 | |
21 | |
19 | #include "config.h" |
22 | #include "config.h" |
20 | |
23 | |
21 | #include <list> |
24 | #include <list> |
22 | |
25 | |
|
|
26 | #include <cstdio> |
|
|
27 | #include <cstring> |
23 | #include <cstdlib> |
28 | #include <cstdlib> |
24 | #include <cstring> |
|
|
25 | #include <cstdio> |
|
|
26 | |
29 | |
27 | #include <sys/types.h> |
30 | #include <sys/types.h> |
28 | #include <sys/socket.h> |
31 | #include <sys/socket.h> |
29 | #include <sys/poll.h> |
|
|
30 | #include <sys/wait.h> |
32 | #include <sys/wait.h> |
31 | #include <errno.h> |
33 | #include <errno.h> |
32 | #include <time.h> |
34 | #include <time.h> |
33 | #include <unistd.h> |
35 | #include <unistd.h> |
34 | #include <fcntl.h> |
36 | #include <fcntl.h> |
35 | #include <arpa/inet.h> |
37 | #include <sys/socket.h> |
36 | #include <netinet/in.h> |
38 | |
37 | #include <netinet/ip_icmp.h> |
39 | #include "netcompat.h" |
38 | |
40 | |
39 | #include "pidfile.h" |
41 | #include "pidfile.h" |
40 | |
42 | |
41 | #include "connection.h" |
43 | #include "connection.h" |
42 | #include "util.h" |
44 | #include "util.h" |
43 | #include "vpn.h" |
45 | #include "vpn.h" |
44 | |
46 | |
|
|
47 | vpn network; // THE vpn (bad design...) |
|
|
48 | |
45 | ///////////////////////////////////////////////////////////////////////////// |
49 | ///////////////////////////////////////////////////////////////////////////// |
46 | |
50 | |
47 | const char *vpn::script_if_up () |
51 | static void inline |
|
|
52 | set_tos (int fd, int &tos_prev, int tos) |
|
|
53 | { |
|
|
54 | #if defined(SOL_IP) && defined(IP_TOS) |
|
|
55 | if (tos_prev == tos) |
|
|
56 | return; |
|
|
57 | |
|
|
58 | tos_prev = tos; |
|
|
59 | setsockopt (fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
|
60 | #endif |
|
|
61 | } |
|
|
62 | |
|
|
63 | void |
|
|
64 | vpn::script_init_env () |
48 | { |
65 | { |
49 | // the tunnel device mtu should be the physical mtu - overhead |
66 | // the tunnel device mtu should be the physical mtu - overhead |
50 | // the tricky part is rounding to the cipher key blocksize |
67 | // the tricky part is rounding to the cipher key blocksize |
51 | int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD; |
68 | int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD; |
52 | mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion |
69 | mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion |
53 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
70 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
54 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
71 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
55 | |
72 | |
56 | char *env; |
73 | char *env; |
57 | asprintf (&env, "CONFBASE=%s", confbase); |
74 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
58 | putenv (env); |
|
|
59 | asprintf (&env, "NODENAME=%s", THISNODE->nodename); |
|
|
60 | putenv (env); |
|
|
61 | asprintf (&env, "NODEID=%d", THISNODE->id); |
|
|
62 | putenv (env); |
|
|
63 | asprintf (&env, "IFNAME=%s", tap->interface ()); |
75 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
64 | putenv (env); |
76 | asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); |
|
|
77 | asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); |
65 | asprintf (&env, "MTU=%d", mtu); |
78 | asprintf (&env, "MTU=%d", mtu); putenv (env); |
66 | putenv (env); |
79 | asprintf (&env, "NODES=%d", conns.size ()); putenv (env); |
67 | asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x", |
80 | asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env); |
68 | 0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8, |
|
|
69 | THISNODE->id & 0xff); |
|
|
70 | putenv (env); |
|
|
71 | |
81 | |
|
|
82 | conns [THISNODE->id - 1]->script_init_env (""); |
|
|
83 | |
|
|
84 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
|
|
85 | { |
|
|
86 | char ext[16]; |
|
|
87 | snprintf (ext, 16, "_%d", (*c)->conf->id); |
|
|
88 | (*c)->script_init_env (ext); |
|
|
89 | } |
|
|
90 | } |
|
|
91 | |
|
|
92 | const char *vpn::script_if_init () |
|
|
93 | { |
|
|
94 | script_init_env (); |
|
|
95 | |
|
|
96 | return tap->if_up (); |
|
|
97 | } |
|
|
98 | |
|
|
99 | const char *vpn::script_if_up () |
|
|
100 | { |
|
|
101 | script_init_env (); |
|
|
102 | |
|
|
103 | char *filename; |
|
|
104 | asprintf (&filename, |
|
|
105 | "%s/%s", |
|
|
106 | confbase, |
72 | return ::conf.script_if_up ? ::conf.script_if_up : "if-up"; |
107 | ::conf.script_if_up ? ::conf.script_if_up : "if-up"); |
|
|
108 | |
|
|
109 | return filename; |
73 | } |
110 | } |
74 | |
111 | |
75 | int |
112 | int |
76 | vpn::setup () |
113 | vpn::setup () |
77 | { |
114 | { |
|
|
115 | ipv4_tos = -1; |
78 | ipv4_fd = -1; |
116 | ipv4_fd = -1; |
79 | |
117 | |
80 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
118 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
81 | { |
119 | { |
82 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
120 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
83 | |
121 | |
84 | if (ipv4_fd < 0) |
122 | if (ipv4_fd < 0) |
85 | return -1; |
123 | return -1; |
86 | |
124 | |
87 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
125 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
|
|
126 | fcntl (ipv4_fd, F_SETFD, FD_CLOEXEC); |
88 | |
127 | |
89 | #ifdef IP_MTU_DISCOVER |
128 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
90 | // this I really consider a linux bug. I am neither connected |
129 | // this I really consider a linux bug. I am neither connected |
91 | // nor do I fragment myself. Linux still sets DF and doesn't |
130 | // nor do I fragment myself. Linux still sets DF and doesn't |
92 | // fragment for me sometimes. |
131 | // fragment for me sometimes. |
93 | { |
132 | { |
94 | int oval = IP_PMTUDISC_DONT; |
133 | int oval = IP_PMTUDISC_DONT; |
… | |
… | |
99 | sockinfo si (THISNODE, PROT_IPv4); |
138 | sockinfo si (THISNODE, PROT_IPv4); |
100 | |
139 | |
101 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
140 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
102 | { |
141 | { |
103 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno)); |
142 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno)); |
104 | exit (1); |
143 | exit (EXIT_FAILURE); |
105 | } |
144 | } |
106 | |
145 | |
107 | ipv4_ev_watcher.start (ipv4_fd, POLLIN); |
146 | ipv4_ev_watcher.start (ipv4_fd, EV_READ); |
108 | } |
147 | } |
109 | |
148 | |
|
|
149 | udpv4_tos = -1; |
110 | udpv4_fd = -1; |
150 | udpv4_fd = -1; |
111 | |
151 | |
112 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
152 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
113 | { |
153 | { |
114 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
154 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
115 | |
155 | |
116 | if (udpv4_fd < 0) |
156 | if (udpv4_fd < 0) |
117 | return -1; |
157 | return -1; |
118 | |
158 | |
119 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
159 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
|
|
160 | fcntl (udpv4_fd, F_SETFD, FD_CLOEXEC); |
120 | |
161 | |
121 | // standard daemon practise... |
162 | // standard daemon practise... |
122 | { |
163 | { |
123 | int oval = 1; |
164 | int oval = 1; |
124 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
165 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
125 | } |
166 | } |
126 | |
167 | |
127 | #ifdef IP_MTU_DISCOVER |
168 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
128 | // this I really consider a linux bug. I am neither connected |
169 | // this I really consider a linux bug. I am neither connected |
129 | // nor do I fragment myself. Linux still sets DF and doesn't |
170 | // nor do I fragment myself. Linux still sets DF and doesn't |
130 | // fragment for me sometimes. |
171 | // fragment for me sometimes. |
131 | { |
172 | { |
132 | int oval = IP_PMTUDISC_DONT; |
173 | int oval = IP_PMTUDISC_DONT; |
… | |
… | |
137 | sockinfo si (THISNODE, PROT_UDPv4); |
178 | sockinfo si (THISNODE, PROT_UDPv4); |
138 | |
179 | |
139 | if (bind (udpv4_fd, si.sav4 (), si.salenv4 ())) |
180 | if (bind (udpv4_fd, si.sav4 (), si.salenv4 ())) |
140 | { |
181 | { |
141 | slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno)); |
182 | slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno)); |
142 | exit (1); |
183 | exit (EXIT_FAILURE); |
143 | } |
184 | } |
144 | |
185 | |
145 | udpv4_ev_watcher.start (udpv4_fd, POLLIN); |
186 | udpv4_ev_watcher.start (udpv4_fd, EV_READ); |
146 | } |
187 | } |
147 | |
188 | |
|
|
189 | icmpv4_tos = -1; |
148 | icmpv4_fd = -1; |
190 | icmpv4_fd = -1; |
149 | |
191 | |
150 | #if ENABLE_ICMP |
192 | #if ENABLE_ICMP |
151 | if (THISNODE->protocols & PROT_ICMPv4) |
193 | if (THISNODE->protocols & PROT_ICMPv4) |
152 | { |
194 | { |
153 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
195 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
154 | |
196 | |
155 | if (icmpv4_fd < 0) |
197 | if (icmpv4_fd < 0) |
156 | return -1; |
198 | return -1; |
157 | |
199 | |
158 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
200 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
|
|
201 | fcntl (icmpv4_fd, F_SETFD, FD_CLOEXEC); |
159 | |
202 | |
160 | #ifdef ICMP_FILTER |
203 | #ifdef ICMP_FILTER |
161 | { |
204 | { |
162 | icmp_filter oval; |
205 | icmp_filter oval; |
163 | oval.data = 0xffffffff; |
206 | oval.data = 0xffffffff; |
… | |
… | |
166 | |
209 | |
167 | setsockopt (icmpv4_fd, SOL_RAW, ICMP_FILTER, &oval, sizeof oval); |
210 | setsockopt (icmpv4_fd, SOL_RAW, ICMP_FILTER, &oval, sizeof oval); |
168 | } |
211 | } |
169 | #endif |
212 | #endif |
170 | |
213 | |
171 | #ifdef IP_MTU_DISCOVER |
214 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
172 | // this I really consider a linux bug. I am neither connected |
215 | // this I really consider a linux bug. I am neither connected |
173 | // nor do I fragment myself. Linux still sets DF and doesn't |
216 | // nor do I fragment myself. Linux still sets DF and doesn't |
174 | // fragment for me sometimes. |
217 | // fragment for me sometimes. |
175 | { |
218 | { |
176 | int oval = IP_PMTUDISC_DONT; |
219 | int oval = IP_PMTUDISC_DONT; |
177 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
220 | setsockopt (icmpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
178 | } |
221 | } |
179 | #endif |
222 | #endif |
180 | |
223 | |
181 | sockinfo si (THISNODE, PROT_ICMPv4); |
224 | sockinfo si (THISNODE, PROT_ICMPv4); |
182 | |
225 | |
183 | if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ())) |
226 | if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ())) |
184 | { |
227 | { |
185 | slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno)); |
228 | slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno)); |
186 | exit (1); |
229 | exit (EXIT_FAILURE); |
187 | } |
230 | } |
188 | |
231 | |
189 | icmpv4_ev_watcher.start (icmpv4_fd, POLLIN); |
232 | icmpv4_ev_watcher.start (icmpv4_fd, EV_READ); |
190 | } |
233 | } |
191 | #endif |
234 | #endif |
192 | |
235 | |
193 | tcpv4_fd = -1; |
236 | tcpv4_fd = -1; |
194 | |
237 | |
… | |
… | |
199 | |
242 | |
200 | if (tcpv4_fd < 0) |
243 | if (tcpv4_fd < 0) |
201 | return -1; |
244 | return -1; |
202 | |
245 | |
203 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
246 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
|
|
247 | fcntl (tcpv4_fd, F_SETFD, FD_CLOEXEC); |
204 | |
248 | |
205 | // standard daemon practise... |
249 | // standard daemon practise... |
206 | { |
250 | { |
207 | int oval = 1; |
251 | int oval = 1; |
208 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
252 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
211 | sockinfo si (THISNODE, PROT_TCPv4); |
255 | sockinfo si (THISNODE, PROT_TCPv4); |
212 | |
256 | |
213 | if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ())) |
257 | if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ())) |
214 | { |
258 | { |
215 | slog (L_ERR, _("can't bind tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
259 | slog (L_ERR, _("can't bind tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
216 | exit (1); |
260 | exit (EXIT_FAILURE); |
217 | } |
261 | } |
218 | |
262 | |
219 | if (listen (tcpv4_fd, 5)) |
263 | if (listen (tcpv4_fd, 5)) |
220 | { |
264 | { |
221 | slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
265 | slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
222 | exit (1); |
266 | exit (EXIT_FAILURE); |
|
|
267 | } |
|
|
268 | |
|
|
269 | tcpv4_ev_watcher.start (tcpv4_fd, EV_READ); |
|
|
270 | } |
|
|
271 | #endif |
|
|
272 | |
|
|
273 | dnsv4_tos = -1; |
|
|
274 | dnsv4_fd = -1; |
|
|
275 | |
|
|
276 | #if ENABLE_DNS |
|
|
277 | if (THISNODE->protocols & PROT_DNSv4) |
|
|
278 | { |
|
|
279 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
|
|
280 | |
|
|
281 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
|
|
282 | |
|
|
283 | if (dnsv4_fd < 0) |
|
|
284 | return -1; |
|
|
285 | |
|
|
286 | fcntl (dnsv4_fd, F_SETFL, O_NONBLOCK); |
|
|
287 | fcntl (dnsv4_fd, F_SETFD, FD_CLOEXEC); |
|
|
288 | |
|
|
289 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
|
|
290 | // this I really consider a linux bug. I am neither connected |
|
|
291 | // nor do I fragment myself. Linux still sets DF and doesn't |
|
|
292 | // fragment for me sometimes. |
|
|
293 | { |
|
|
294 | int oval = IP_PMTUDISC_DONT; |
|
|
295 | setsockopt (dnsv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
223 | } |
296 | } |
224 | |
|
|
225 | tcpv4_ev_watcher.start (tcpv4_fd, POLLIN); |
|
|
226 | } |
|
|
227 | #endif |
297 | # endif |
|
|
298 | |
|
|
299 | // standard daemon practise... |
|
|
300 | { |
|
|
301 | int oval = 1; |
|
|
302 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
|
|
303 | } |
|
|
304 | |
|
|
305 | sockinfo si (THISNODE->dns_hostname, |
|
|
306 | THISNODE->dns_hostname ? THISNODE->dns_port : 0, |
|
|
307 | PROT_DNSv4); |
|
|
308 | |
|
|
309 | if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ())) |
|
|
310 | { |
|
|
311 | slog (L_ERR, _("can't bind dnsv4 on %s: %s"), (const char *)si, strerror (errno)); |
|
|
312 | exit (EXIT_FAILURE); |
|
|
313 | } |
|
|
314 | |
|
|
315 | dnsv4_ev_watcher.start (dnsv4_fd, EV_READ); |
|
|
316 | } |
|
|
317 | #endif |
|
|
318 | |
|
|
319 | ///////////////////////////////////////////////////////////////////////////// |
|
|
320 | |
|
|
321 | reconnect_all (); |
|
|
322 | |
|
|
323 | ///////////////////////////////////////////////////////////////////////////// |
228 | |
324 | |
229 | tap = new tap_device (); |
325 | tap = new tap_device (); |
230 | if (!tap) //D this, of course, never catches |
326 | if (!tap) //D this, of course, never catches |
231 | { |
327 | { |
232 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
328 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
233 | exit (1); |
329 | exit (EXIT_FAILURE); |
234 | } |
330 | } |
235 | |
331 | |
|
|
332 | fcntl (tap->fd, F_SETFD, FD_CLOEXEC); |
|
|
333 | |
|
|
334 | if (tap->if_up () && |
|
|
335 | !run_script (run_script_cb (this, &vpn::script_if_init), true)) |
|
|
336 | { |
|
|
337 | slog (L_ERR, _("interface initialization command '%s' failed, exiting."), |
|
|
338 | tap->if_up ()); |
|
|
339 | exit (EXIT_FAILURE); |
|
|
340 | } |
|
|
341 | |
236 | run_script (run_script_cb (this, &vpn::script_if_up), true); |
342 | if (!run_script (run_script_cb (this, &vpn::script_if_up), true)) |
|
|
343 | { |
|
|
344 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
|
|
345 | exit (EXIT_FAILURE); |
|
|
346 | } |
237 | |
347 | |
238 | tap_ev_watcher.start (tap->fd, POLLIN); |
348 | tap_ev_watcher.start (tap->fd, EV_READ); |
239 | |
|
|
240 | reconnect_all (); |
|
|
241 | |
349 | |
242 | return 0; |
350 | return 0; |
243 | } |
|
|
244 | |
|
|
245 | // send a vpn packet out to other hosts |
|
|
246 | bool |
|
|
247 | vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
|
|
248 | { |
|
|
249 | switch (si.prot) |
|
|
250 | { |
|
|
251 | case PROT_IPv4: |
|
|
252 | return send_ipv4_packet (pkt, si, tos); |
|
|
253 | |
|
|
254 | case PROT_UDPv4: |
|
|
255 | return send_udpv4_packet (pkt, si, tos); |
|
|
256 | |
|
|
257 | #if ENABLE_TCP |
|
|
258 | case PROT_TCPv4: |
|
|
259 | return send_tcpv4_packet (pkt, si, tos); |
|
|
260 | #endif |
|
|
261 | |
|
|
262 | #if ENABLE_ICMP |
|
|
263 | case PROT_ICMPv4: |
|
|
264 | return send_icmpv4_packet (pkt, si, tos); |
|
|
265 | #endif |
|
|
266 | |
|
|
267 | default: |
|
|
268 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si); |
|
|
269 | return false; |
|
|
270 | } |
|
|
271 | } |
351 | } |
272 | |
352 | |
273 | bool |
353 | bool |
274 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
354 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
275 | { |
355 | { |
276 | setsockopt (ipv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
356 | set_tos (ipv4_fd, ipv4_tos, tos); |
277 | sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
357 | sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
278 | |
358 | |
279 | return true; |
359 | return true; |
280 | } |
360 | } |
281 | |
361 | |
… | |
… | |
300 | sum += (sum >> 16); // carry |
380 | sum += (sum >> 16); // carry |
301 | |
381 | |
302 | return ~sum; |
382 | return ~sum; |
303 | } |
383 | } |
304 | |
384 | |
|
|
385 | #if ENABLE_ICMP |
305 | bool |
386 | bool |
306 | vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
387 | vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
307 | { |
388 | { |
308 | setsockopt (icmpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
|
309 | |
|
|
310 | pkt->unshift_hdr (4); |
389 | pkt->unshift_hdr (4); |
311 | |
390 | |
312 | icmphdr *hdr = (icmphdr *)&((*pkt)[0]); |
391 | icmp_header *hdr = (icmp_header *)&((*pkt)[0]); |
313 | hdr->type = ::conf.icmp_type; |
392 | hdr->type = ::conf.icmp_type; |
314 | hdr->code = 255; |
393 | hdr->code = 255; |
315 | hdr->checksum = 0; |
394 | hdr->checksum = 0; |
316 | hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len); |
395 | hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len); |
317 | |
396 | |
|
|
397 | set_tos (icmpv4_fd, icmpv4_tos, tos); |
318 | sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
398 | sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
319 | |
399 | |
320 | return true; |
400 | return true; |
321 | } |
401 | } |
|
|
402 | #endif |
322 | |
403 | |
323 | bool |
404 | bool |
324 | vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
405 | vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
325 | { |
406 | { |
326 | setsockopt (udpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
407 | set_tos (udpv4_fd, udpv4_tos, tos); |
327 | sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
408 | sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
328 | |
409 | |
329 | return true; |
410 | return true; |
|
|
411 | } |
|
|
412 | |
|
|
413 | void |
|
|
414 | vpn::inject_data_packet (tap_packet *pkt, int dst) |
|
|
415 | { |
|
|
416 | if (dst) |
|
|
417 | { |
|
|
418 | // unicast |
|
|
419 | if (dst != THISNODE->id) |
|
|
420 | conns[dst - 1]->inject_data_packet (pkt); |
|
|
421 | } |
|
|
422 | else |
|
|
423 | { |
|
|
424 | // broadcast, this is ugly, but due to the security policy |
|
|
425 | // we have to connect to all hosts... |
|
|
426 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
|
|
427 | if ((*c)->conf != THISNODE) |
|
|
428 | (*c)->inject_data_packet (pkt, true); |
|
|
429 | } |
330 | } |
430 | } |
331 | |
431 | |
332 | void |
432 | void |
333 | vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
433 | vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
334 | { |
434 | { |
… | |
… | |
348 | (const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ()); |
448 | (const char *)rsi, pkt->typ (), pkt->src (), pkt->dst ()); |
349 | else |
449 | else |
350 | { |
450 | { |
351 | connection *c = conns[src - 1]; |
451 | connection *c = conns[src - 1]; |
352 | |
452 | |
353 | if (dst == 0 && !THISNODE->routerprio) |
453 | if (dst == 0) |
354 | slog (L_WARN, _("%s(%s): received broadcast, but we are no router"), |
454 | slog (L_WARN, _("%s(%s): received broadcast (protocol violation)"), |
355 | c->conf->nodename, (const char *)rsi); |
455 | c->conf->nodename, (const char *)rsi); |
356 | else if (dst != 0 && dst != THISNODE->id) |
456 | else if (dst != THISNODE->id) |
357 | { |
457 | { |
358 | if (THISNODE->routerprio) |
458 | if (THISNODE->routerprio) |
359 | // the tos setting gets lost here. who cares. |
459 | // the tos setting gets lost here. who cares. |
360 | conns[dst - 1]->inject_vpn_packet (pkt); |
460 | conns[dst - 1]->inject_vpn_packet (pkt); |
361 | else |
461 | else |
… | |
… | |
367 | else |
467 | else |
368 | c->recv_vpn_packet (pkt, rsi); |
468 | c->recv_vpn_packet (pkt, rsi); |
369 | } |
469 | } |
370 | } |
470 | } |
371 | |
471 | |
|
|
472 | bool |
|
|
473 | vpn::send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
|
|
474 | { |
|
|
475 | switch (si.prot) |
|
|
476 | { |
|
|
477 | case PROT_IPv4: |
|
|
478 | return send_ipv4_packet (pkt, si, tos); |
|
|
479 | |
|
|
480 | case PROT_UDPv4: |
|
|
481 | return send_udpv4_packet (pkt, si, tos); |
|
|
482 | |
|
|
483 | #if ENABLE_TCP |
|
|
484 | case PROT_TCPv4: |
|
|
485 | return send_tcpv4_packet (pkt, si, tos); |
|
|
486 | #endif |
|
|
487 | #if ENABLE_ICMP |
|
|
488 | case PROT_ICMPv4: |
|
|
489 | return send_icmpv4_packet (pkt, si, tos); |
|
|
490 | #endif |
|
|
491 | #if ENABLE_DNS |
|
|
492 | case PROT_DNSv4: |
|
|
493 | return send_dnsv4_packet (pkt, si, tos); |
|
|
494 | #endif |
|
|
495 | default: |
|
|
496 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si); |
|
|
497 | } |
|
|
498 | |
|
|
499 | return false; |
|
|
500 | } |
|
|
501 | |
372 | void |
502 | void |
373 | vpn::ipv4_ev (io_watcher &w, short revents) |
503 | vpn::ipv4_ev (ev::io &w, int revents) |
374 | { |
504 | { |
375 | if (revents & (POLLIN | POLLERR)) |
505 | if (revents & EV_READ) |
376 | { |
506 | { |
377 | vpn_packet *pkt = new vpn_packet; |
507 | vpn_packet *pkt = new vpn_packet; |
378 | struct sockaddr_in sa; |
508 | struct sockaddr_in sa; |
379 | socklen_t sa_len = sizeof (sa); |
509 | socklen_t sa_len = sizeof (sa); |
380 | int len; |
510 | int len; |
… | |
… | |
385 | |
515 | |
386 | if (len > 0) |
516 | if (len > 0) |
387 | { |
517 | { |
388 | pkt->len = len; |
518 | pkt->len = len; |
389 | |
519 | |
390 | // raw sockets deliver the ipv4, but don't expect it on sends |
520 | // raw sockets deliver the ipv4 header, but don't expect it on sends |
391 | // this is slow, but... |
|
|
392 | pkt->skip_hdr (IP_OVERHEAD); |
521 | pkt->skip_hdr (IP_OVERHEAD); |
393 | |
522 | |
394 | recv_vpn_packet (pkt, si); |
523 | recv_vpn_packet (pkt, si); |
395 | } |
524 | } |
396 | else |
525 | else |
… | |
… | |
399 | slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno)); |
528 | slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno)); |
400 | } |
529 | } |
401 | |
530 | |
402 | delete pkt; |
531 | delete pkt; |
403 | } |
532 | } |
404 | else if (revents & POLLHUP) |
|
|
405 | { |
|
|
406 | // this cannot ;) happen on udp sockets |
|
|
407 | slog (L_ERR, _("FATAL: POLLHUP on ipv4 fd, terminating.")); |
|
|
408 | exit (1); |
|
|
409 | } |
|
|
410 | else |
533 | else |
411 | { |
534 | { |
412 | slog (L_ERR, |
535 | slog (L_ERR, |
413 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
536 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
414 | revents); |
537 | revents); |
415 | exit (1); |
538 | exit (EXIT_FAILURE); |
416 | } |
539 | } |
417 | } |
540 | } |
418 | |
541 | |
|
|
542 | #if ENABLE_ICMP |
419 | void |
543 | void |
420 | vpn::icmpv4_ev (io_watcher &w, short revents) |
544 | vpn::icmpv4_ev (ev::io &w, int revents) |
421 | { |
545 | { |
422 | if (revents & (POLLIN | POLLERR)) |
546 | if (revents & EV_READ) |
423 | { |
547 | { |
424 | vpn_packet *pkt = new vpn_packet; |
548 | vpn_packet *pkt = new vpn_packet; |
425 | struct sockaddr_in sa; |
549 | struct sockaddr_in sa; |
426 | socklen_t sa_len = sizeof (sa); |
550 | socklen_t sa_len = sizeof (sa); |
427 | int len; |
551 | int len; |
… | |
… | |
432 | |
556 | |
433 | if (len > 0) |
557 | if (len > 0) |
434 | { |
558 | { |
435 | pkt->len = len; |
559 | pkt->len = len; |
436 | |
560 | |
437 | icmphdr *hdr = (icmphdr *)&((*pkt)[IP_OVERHEAD]); |
561 | icmp_header *hdr = (icmp_header *)&((*pkt)[IP_OVERHEAD]); |
438 | |
562 | |
439 | if (hdr->type == ::conf.icmp_type |
563 | if (hdr->type == ::conf.icmp_type |
440 | && hdr->code == 255) |
564 | && hdr->code == 255) |
441 | { |
565 | { |
442 | // raw sockets deliver the ipv4, but don't expect it on sends |
566 | // raw sockets deliver the ipv4, but don't expect it on sends |
… | |
… | |
452 | slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno)); |
576 | slog (L_DEBUG, _("%s: %s"), (const char *)si, strerror (errno)); |
453 | } |
577 | } |
454 | |
578 | |
455 | delete pkt; |
579 | delete pkt; |
456 | } |
580 | } |
457 | else if (revents & POLLHUP) |
|
|
458 | { |
|
|
459 | // this cannot ;) happen on udp sockets |
|
|
460 | slog (L_ERR, _("FATAL: POLLHUP on icmpv4 fd, terminating.")); |
|
|
461 | exit (1); |
|
|
462 | } |
|
|
463 | else |
581 | else |
464 | { |
582 | { |
465 | slog (L_ERR, |
583 | slog (L_ERR, |
466 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
584 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
467 | revents); |
585 | revents); |
468 | exit (1); |
586 | exit (EXIT_FAILURE); |
469 | } |
587 | } |
470 | } |
588 | } |
|
|
589 | #endif |
471 | |
590 | |
472 | void |
591 | void |
473 | vpn::udpv4_ev (io_watcher &w, short revents) |
592 | vpn::udpv4_ev (ev::io &w, int revents) |
474 | { |
593 | { |
475 | if (revents & (POLLIN | POLLERR)) |
594 | if (revents & EV_READ) |
476 | { |
595 | { |
477 | vpn_packet *pkt = new vpn_packet; |
596 | vpn_packet *pkt = new vpn_packet; |
478 | struct sockaddr_in sa; |
597 | struct sockaddr_in sa; |
479 | socklen_t sa_len = sizeof (sa); |
598 | socklen_t sa_len = sizeof (sa); |
480 | int len; |
599 | int len; |
… | |
… | |
495 | slog (L_DEBUG, _("%s: fd %d, %s"), (const char *)si, w.fd, strerror (errno)); |
614 | slog (L_DEBUG, _("%s: fd %d, %s"), (const char *)si, w.fd, strerror (errno)); |
496 | } |
615 | } |
497 | |
616 | |
498 | delete pkt; |
617 | delete pkt; |
499 | } |
618 | } |
500 | else if (revents & POLLHUP) |
|
|
501 | { |
|
|
502 | // this cannot ;) happen on udp sockets |
|
|
503 | slog (L_ERR, _("FATAL: POLLHUP on udp v4 fd, terminating.")); |
|
|
504 | exit (1); |
|
|
505 | } |
|
|
506 | else |
619 | else |
507 | { |
620 | { |
508 | slog (L_ERR, |
621 | slog (L_ERR, |
509 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
622 | _("FATAL: unknown revents %08x in socket, terminating\n"), |
510 | revents); |
623 | revents); |
511 | exit (1); |
624 | exit (EXIT_FAILURE); |
512 | } |
625 | } |
513 | } |
626 | } |
514 | |
627 | |
515 | void |
628 | void |
516 | vpn::tap_ev (io_watcher &w, short revents) |
629 | vpn::tap_ev (ev::io &w, int revents) |
517 | { |
630 | { |
518 | if (revents & POLLIN) |
631 | if (revents & EV_READ) |
519 | { |
632 | { |
520 | /* process data */ |
633 | /* process data */ |
521 | tap_packet *pkt; |
634 | tap_packet *pkt; |
522 | |
635 | |
523 | pkt = tap->recv (); |
636 | pkt = tap->recv (); |
524 | |
637 | |
|
|
638 | if (!pkt) |
|
|
639 | return; |
|
|
640 | |
|
|
641 | if (pkt->len > 14) |
|
|
642 | { |
525 | int dst = mac2id (pkt->dst); |
643 | int dst = mac2id (pkt->dst); |
526 | int src = mac2id (pkt->src); |
644 | int src = mac2id (pkt->src); |
527 | |
645 | |
528 | if (src != THISNODE->id) |
646 | if (src != THISNODE->id) |
529 | { |
|
|
530 | slog (L_ERR, _("FATAL: tap packet not originating on current node received, terminating.")); |
|
|
531 | exit (1); |
|
|
532 | } |
|
|
533 | |
|
|
534 | if (dst == THISNODE->id) |
|
|
535 | { |
|
|
536 | slog (L_ERR, _("FATAL: tap packet destined for current node received, terminating.")); |
|
|
537 | exit (1); |
|
|
538 | } |
|
|
539 | |
|
|
540 | if (dst > conns.size ()) |
|
|
541 | slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst); |
|
|
542 | else |
|
|
543 | { |
|
|
544 | if (dst) |
|
|
545 | { |
647 | { |
546 | // unicast |
648 | slog (L_ERR, _("FATAL: tap packet not originating on current node received (if-up script not working properly?), exiting.")); |
547 | if (dst != THISNODE->id) |
649 | exit (EXIT_FAILURE); |
548 | conns[dst - 1]->inject_data_packet (pkt); |
|
|
549 | } |
650 | } |
|
|
651 | |
|
|
652 | if (dst == THISNODE->id) |
|
|
653 | { |
|
|
654 | slog (L_ERR, _("FATAL: tap packet destined for current node received, exiting.")); |
|
|
655 | exit (EXIT_FAILURE); |
|
|
656 | } |
|
|
657 | |
|
|
658 | if (dst > conns.size ()) |
|
|
659 | slog (L_ERR, _("tap packet for unknown node %d received, ignoring."), dst); |
550 | else |
660 | else |
551 | { |
|
|
552 | // broadcast, first check router, then self, then english |
|
|
553 | connection *router = find_router (); |
|
|
554 | |
|
|
555 | if (router) |
|
|
556 | router->inject_data_packet (pkt, true); |
661 | inject_data_packet (pkt, dst); |
557 | else |
|
|
558 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
|
|
559 | if ((*c)->conf != THISNODE) |
|
|
560 | (*c)->inject_data_packet (pkt); |
|
|
561 | } |
|
|
562 | } |
662 | } |
563 | |
663 | |
564 | delete pkt; |
664 | delete pkt; |
565 | } |
|
|
566 | else if (revents & (POLLHUP | POLLERR)) |
|
|
567 | { |
|
|
568 | slog (L_ERR, _("FATAL: POLLHUP or POLLERR on network device fd, terminating.")); |
|
|
569 | exit (1); |
|
|
570 | } |
665 | } |
571 | else |
666 | else |
572 | abort (); |
667 | abort (); |
573 | } |
668 | } |
574 | |
669 | |
575 | void |
670 | void |
576 | vpn::event_cb (time_watcher &w) |
671 | vpn::event_cb (ev::timer &w, int) |
577 | { |
672 | { |
578 | if (events) |
673 | if (events) |
579 | { |
674 | { |
580 | if (events & EVENT_SHUTDOWN) |
675 | if (events & EVENT_SHUTDOWN) |
581 | { |
676 | { |
582 | slog (L_INFO, _("preparing shutdown...")); |
677 | slog (L_INFO, _("preparing shutdown...")); |
583 | |
678 | |
584 | shutdown_all (); |
679 | shutdown_all (); |
585 | |
|
|
586 | remove_pid (pidfilename); |
680 | remove_pid (conf.pidfilename); |
587 | |
|
|
588 | slog (L_INFO, _("terminating")); |
681 | slog (L_INFO, _("terminating")); |
589 | |
682 | exit (EXIT_SUCCESS); |
590 | exit (0); |
|
|
591 | } |
683 | } |
592 | |
684 | |
593 | if (events & EVENT_RECONNECT) |
685 | if (events & EVENT_RECONNECT) |
594 | { |
686 | { |
595 | slog (L_INFO, _("forced reconnect")); |
687 | slog (L_INFO, _("forced reconnect")); |
… | |
… | |
597 | reconnect_all (); |
689 | reconnect_all (); |
598 | } |
690 | } |
599 | |
691 | |
600 | events = 0; |
692 | events = 0; |
601 | } |
693 | } |
602 | |
|
|
603 | w.at = TSTAMP_CANCEL; |
|
|
604 | } |
694 | } |
605 | |
695 | |
606 | void |
696 | void |
607 | vpn::shutdown_all () |
697 | vpn::shutdown_all () |
608 | { |
698 | { |
… | |
… | |
621 | connection_init (); |
711 | connection_init (); |
622 | |
712 | |
623 | for (configuration::node_vector::iterator i = conf.nodes.begin (); |
713 | for (configuration::node_vector::iterator i = conf.nodes.begin (); |
624 | i != conf.nodes.end (); ++i) |
714 | i != conf.nodes.end (); ++i) |
625 | { |
715 | { |
626 | connection *conn = new connection (this); |
716 | connection *conn = new connection (this, *i); |
627 | |
|
|
628 | conn->conf = *i; |
|
|
629 | conns.push_back (conn); |
717 | conns.push_back (conn); |
630 | |
|
|
631 | conn->establish_connection (); |
718 | conn->establish_connection (); |
632 | } |
719 | } |
633 | } |
720 | } |
634 | |
721 | |
635 | connection *vpn::find_router () |
722 | connection *vpn::find_router () |
636 | { |
723 | { |
637 | u32 prio = 0; |
724 | u32 prio = 1; |
638 | connection *router = 0; |
725 | connection *router = 0; |
639 | |
726 | |
640 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
727 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
641 | { |
728 | { |
642 | connection *c = *i; |
729 | connection *c = *i; |
643 | |
730 | |
644 | if (c->conf->routerprio > prio |
731 | if (c->conf->routerprio > prio |
645 | && c->connectmode == conf_node::C_ALWAYS // so we don't drop the connection if in use |
732 | && c->connectmode == conf_node::C_ALWAYS // so we don't drop the connection if in use |
646 | && c->ictx && c->octx |
733 | && c->ictx && c->octx |
647 | && c->conf != THISNODE // redundant, since ictx==octx==0 always on thisnode |
734 | && c->conf != THISNODE) // redundant, since ictx==octx==0 always on thisnode |
648 | && (!THISNODE->routerprio |
|
|
649 | || c->conf->routerprio <= THISNODE->routerprio)) |
|
|
650 | { |
735 | { |
651 | prio = c->conf->routerprio; |
736 | prio = c->conf->routerprio; |
652 | router = c; |
737 | router = c; |
653 | } |
738 | } |
654 | } |
739 | } |
… | |
… | |
663 | if (c) |
748 | if (c) |
664 | c->send_connect_request (id); |
749 | c->send_connect_request (id); |
665 | else |
750 | else |
666 | // no router found, aggressively connect to all routers |
751 | // no router found, aggressively connect to all routers |
667 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
752 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
668 | if ((*i)->conf->routerprio) |
753 | if ((*i)->conf->routerprio && (*i)->conf != THISNODE) |
669 | (*i)->establish_connection (); |
754 | (*i)->establish_connection (); |
670 | } |
755 | } |
671 | |
756 | |
672 | void |
757 | void |
673 | connection::dump_status () |
758 | connection::dump_status () |
… | |
… | |
682 | } |
767 | } |
683 | |
768 | |
684 | void |
769 | void |
685 | vpn::dump_status () |
770 | vpn::dump_status () |
686 | { |
771 | { |
687 | slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)NOW); |
772 | slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)ev_now ()); |
688 | |
773 | |
689 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
774 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
690 | (*c)->dump_status (); |
775 | (*c)->dump_status (); |
691 | |
776 | |
692 | slog (L_NOTICE, _("END status dump")); |
777 | slog (L_NOTICE, _("END status dump")); |
… | |
… | |
700 | , tcpv4_ev_watcher (this, &vpn::tcpv4_ev) |
785 | , tcpv4_ev_watcher (this, &vpn::tcpv4_ev) |
701 | #endif |
786 | #endif |
702 | #if ENABLE_ICMP |
787 | #if ENABLE_ICMP |
703 | , icmpv4_ev_watcher(this, &vpn::icmpv4_ev) |
788 | , icmpv4_ev_watcher(this, &vpn::icmpv4_ev) |
704 | #endif |
789 | #endif |
|
|
790 | #if ENABLE_DNS |
|
|
791 | , dnsv4_ev_watcher (this, &vpn::dnsv4_ev) |
|
|
792 | #endif |
705 | , tap_ev_watcher (this, &vpn::tap_ev) |
793 | , tap_ev_watcher (this, &vpn::tap_ev) |
706 | { |
794 | { |
707 | } |
795 | } |
708 | |
796 | |
709 | vpn::~vpn () |
797 | vpn::~vpn () |