1 | /* |
1 | /* |
2 | vpn.C -- handle the protocol, encryption, handshaking etc. |
2 | vpn.C -- handle the protocol, encryption, handshaking etc. |
3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
3 | Copyright (C) 2003-2008,2010,2011 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
5 | This file is part of GVPE. |
5 | This file is part of GVPE. |
6 | |
6 | |
7 | GVPE is free software; you can redistribute it and/or modify it |
7 | GVPE is free software; you can redistribute it and/or modify it |
8 | under the terms of the GNU General Public License as published by the |
8 | under the terms of the GNU General Public License as published by the |
… | |
… | |
120 | |
120 | |
121 | return filename; |
121 | return filename; |
122 | } |
122 | } |
123 | |
123 | |
124 | int |
124 | int |
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125 | vpn::setup_socket (u8 prot, int family, int type, int proto) |
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126 | { |
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127 | int fd = socket (family, type, proto); |
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128 | |
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129 | if (fd < 0) |
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130 | { |
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131 | slog (L_ERR, _("unable to create %s socket: %s."), strprotocol (prot), strerror (errno)); |
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132 | return fd; |
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133 | } |
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134 | |
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135 | fcntl (fd, F_SETFL, O_NONBLOCK); |
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136 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
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137 | |
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138 | #ifdef SO_MARK |
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139 | if (::conf.nfmark) |
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140 | if (setsockopt (fd, SOL_SOCKET, SO_MARK, &::conf.nfmark, sizeof ::conf.nfmark)) |
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141 | slog (L_WARN, _("unable to set nfmark on %s socket: %s"), strprotocol (prot), strerror (errno)); |
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142 | #endif |
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143 | |
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144 | return fd; |
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145 | } |
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146 | |
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147 | int |
125 | vpn::setup () |
148 | vpn::setup () |
126 | { |
149 | { |
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150 | int success = 0; |
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151 | |
127 | ipv4_tos = -1; |
152 | ipv4_tos = -1; |
128 | ipv4_fd = -1; |
153 | ipv4_fd = -1; |
129 | |
154 | |
130 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
155 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
131 | { |
156 | { |
132 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
157 | ipv4_fd = setup_socket (PROT_IPv4, PF_INET, SOCK_RAW, ::conf.ip_proto); |
133 | |
158 | |
134 | if (ipv4_fd < 0) |
159 | if (ipv4_fd < 0) |
135 | return -1; |
160 | return -1; |
136 | |
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137 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
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138 | fcntl (ipv4_fd, F_SETFD, FD_CLOEXEC); |
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139 | |
161 | |
140 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
162 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
141 | // this I really consider a linux bug. I am neither connected |
163 | // this I really consider a linux bug. I am neither connected |
142 | // nor do I fragment myself. Linux still sets DF and doesn't |
164 | // nor do I fragment myself. Linux still sets DF and doesn't |
143 | // fragment for me sometimes. |
165 | // fragment for me sometimes. |
… | |
… | |
150 | sockinfo si (THISNODE, PROT_IPv4); |
172 | sockinfo si (THISNODE, PROT_IPv4); |
151 | |
173 | |
152 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
174 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
153 | { |
175 | { |
154 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s, exiting."), (const char *)si, strerror (errno)); |
176 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s, exiting."), (const char *)si, strerror (errno)); |
155 | exit (EXIT_FAILURE); |
177 | return -1; |
156 | } |
178 | } |
157 | |
179 | |
158 | ipv4_ev_watcher.start (ipv4_fd, EV_READ); |
180 | ipv4_ev_watcher.start (ipv4_fd, EV_READ); |
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181 | ++success; |
159 | } |
182 | } |
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183 | else |
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184 | THISNODE->protocols &= ~PROT_IPv4; |
160 | |
185 | |
161 | udpv4_tos = -1; |
186 | udpv4_tos = -1; |
162 | udpv4_fd = -1; |
187 | udpv4_fd = -1; |
163 | |
188 | |
164 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
189 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
165 | { |
190 | { |
166 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
191 | udpv4_fd = setup_socket (PROT_UDPv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
167 | |
192 | |
168 | if (udpv4_fd < 0) |
193 | if (udpv4_fd < 0) |
169 | return -1; |
194 | return -1; |
170 | |
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171 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
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172 | fcntl (udpv4_fd, F_SETFD, FD_CLOEXEC); |
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173 | |
195 | |
174 | // standard daemon practise... |
196 | // standard daemon practise... |
175 | { |
197 | { |
176 | int oval = 1; |
198 | int oval = 1; |
177 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
199 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
190 | sockinfo si (THISNODE, PROT_UDPv4); |
212 | sockinfo si (THISNODE, PROT_UDPv4); |
191 | |
213 | |
192 | if (bind (udpv4_fd, si.sav4 (), si.salenv4 ())) |
214 | if (bind (udpv4_fd, si.sav4 (), si.salenv4 ())) |
193 | { |
215 | { |
194 | slog (L_ERR, _("can't bind udpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
216 | slog (L_ERR, _("can't bind udpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
195 | exit (EXIT_FAILURE); |
217 | return -1; |
196 | } |
218 | } |
197 | |
219 | |
198 | udpv4_ev_watcher.start (udpv4_fd, EV_READ); |
220 | udpv4_ev_watcher.start (udpv4_fd, EV_READ); |
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221 | ++success; |
199 | } |
222 | } |
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223 | else |
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224 | THISNODE->protocols &= ~PROT_UDPv4; |
200 | |
225 | |
201 | icmpv4_tos = -1; |
226 | icmpv4_tos = -1; |
202 | icmpv4_fd = -1; |
227 | icmpv4_fd = -1; |
203 | |
228 | |
204 | #if ENABLE_ICMP |
229 | #if ENABLE_ICMP |
205 | if (THISNODE->protocols & PROT_ICMPv4) |
230 | if (THISNODE->protocols & PROT_ICMPv4) |
206 | { |
231 | { |
207 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
232 | icmpv4_fd = setup_socket (PROT_ICMPv4, PF_INET, SOCK_RAW, IPPROTO_ICMP); |
208 | |
233 | |
209 | if (icmpv4_fd < 0) |
234 | if (icmpv4_fd < 0) |
210 | return -1; |
235 | return -1; |
211 | |
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212 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
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213 | fcntl (icmpv4_fd, F_SETFD, FD_CLOEXEC); |
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214 | |
236 | |
215 | #ifdef ICMP_FILTER |
237 | #ifdef ICMP_FILTER |
216 | { |
238 | { |
217 | icmp_filter oval; |
239 | icmp_filter oval; |
218 | oval.data = 0xffffffff; |
240 | oval.data = 0xffffffff; |
… | |
… | |
236 | sockinfo si (THISNODE, PROT_ICMPv4); |
258 | sockinfo si (THISNODE, PROT_ICMPv4); |
237 | |
259 | |
238 | if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ())) |
260 | if (bind (icmpv4_fd, si.sav4 (), si.salenv4 ())) |
239 | { |
261 | { |
240 | slog (L_ERR, _("can't bind icmpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
262 | slog (L_ERR, _("can't bind icmpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
241 | exit (EXIT_FAILURE); |
263 | return -1; |
242 | } |
264 | } |
243 | |
265 | |
244 | icmpv4_ev_watcher.start (icmpv4_fd, EV_READ); |
266 | icmpv4_ev_watcher.start (icmpv4_fd, EV_READ); |
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267 | ++success; |
245 | } |
268 | } |
246 | #endif |
269 | #endif |
247 | |
270 | |
248 | tcpv4_fd = -1; |
271 | tcpv4_fd = -1; |
249 | |
272 | |
250 | #if ENABLE_TCP |
273 | #if ENABLE_TCP |
251 | if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port) |
274 | if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port) |
252 | { |
275 | { |
253 | tcpv4_fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP); |
276 | tcpv4_fd = setup_socket (PROT_TCPv4, PF_INET, SOCK_STREAM, IPPROTO_TCP); |
254 | |
277 | |
255 | if (tcpv4_fd < 0) |
278 | if (tcpv4_fd < 0) |
256 | return -1; |
279 | return -1; |
257 | |
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258 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
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259 | fcntl (tcpv4_fd, F_SETFD, FD_CLOEXEC); |
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260 | |
280 | |
261 | // standard daemon practise... |
281 | // standard daemon practise... |
262 | { |
282 | { |
263 | int oval = 1; |
283 | int oval = 1; |
264 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
284 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
267 | sockinfo si (THISNODE, PROT_TCPv4); |
287 | sockinfo si (THISNODE, PROT_TCPv4); |
268 | |
288 | |
269 | if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ())) |
289 | if (bind (tcpv4_fd, si.sav4 (), si.salenv4 ())) |
270 | { |
290 | { |
271 | slog (L_ERR, _("can't bind tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
291 | slog (L_ERR, _("can't bind tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
272 | exit (EXIT_FAILURE); |
292 | return -1; |
273 | } |
293 | } |
274 | |
294 | |
275 | if (listen (tcpv4_fd, 5)) |
295 | if (listen (tcpv4_fd, 5)) |
276 | { |
296 | { |
277 | slog (L_ERR, _("can't listen tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
297 | slog (L_ERR, _("can't listen tcpv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
278 | exit (EXIT_FAILURE); |
298 | return -1; |
279 | } |
299 | } |
280 | |
300 | |
281 | tcpv4_ev_watcher.start (tcpv4_fd, EV_READ); |
301 | tcpv4_ev_watcher.start (tcpv4_fd, EV_READ); |
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302 | ++success; |
282 | } |
303 | } |
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304 | else |
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305 | THISNODE->protocols &= ~PROT_TCPv4; |
283 | #endif |
306 | #endif |
284 | |
307 | |
285 | dnsv4_tos = -1; |
308 | dnsv4_tos = -1; |
286 | dnsv4_fd = -1; |
309 | dnsv4_fd = -1; |
287 | |
310 | |
288 | #if ENABLE_DNS |
311 | #if ENABLE_DNS |
289 | if (THISNODE->protocols & PROT_DNSv4) |
312 | if (THISNODE->protocols & PROT_DNSv4) |
290 | { |
313 | { |
291 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
314 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
292 | |
315 | |
293 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
316 | dnsv4_fd = setup_socket (PROT_DNSv4, PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
294 | |
317 | |
295 | if (dnsv4_fd < 0) |
318 | if (dnsv4_fd < 0) |
296 | return -1; |
319 | return -1; |
297 | |
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298 | fcntl (dnsv4_fd, F_SETFL, O_NONBLOCK); |
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299 | fcntl (dnsv4_fd, F_SETFD, FD_CLOEXEC); |
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300 | |
320 | |
301 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
321 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
302 | // this I really consider a linux bug. I am neither connected |
322 | // this I really consider a linux bug. I am neither connected |
303 | // nor do I fragment myself. Linux still sets DF and doesn't |
323 | // nor do I fragment myself. Linux still sets DF and doesn't |
304 | // fragment for me sometimes. |
324 | // fragment for me sometimes. |
… | |
… | |
319 | PROT_DNSv4); |
339 | PROT_DNSv4); |
320 | |
340 | |
321 | if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ())) |
341 | if (bind (dnsv4_fd, si.sav4 (), si.salenv4 ())) |
322 | { |
342 | { |
323 | slog (L_ERR, _("can't bind dnsv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
343 | slog (L_ERR, _("can't bind dnsv4 on %s: %s, exiting."), (const char *)si, strerror (errno)); |
324 | exit (EXIT_FAILURE); |
344 | return -1; |
325 | } |
345 | } |
326 | |
346 | |
327 | dnsv4_ev_watcher.start (dnsv4_fd, EV_READ); |
347 | dnsv4_ev_watcher.start (dnsv4_fd, EV_READ); |
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348 | ++success; |
328 | } |
349 | } |
329 | #endif |
350 | #endif |
330 | |
351 | |
331 | ///////////////////////////////////////////////////////////////////////////// |
352 | ///////////////////////////////////////////////////////////////////////////// |
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353 | |
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354 | if (!success) |
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355 | { |
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356 | slog (L_ERR, _("no protocols enabled.")); |
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357 | return -1; |
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358 | } |
332 | |
359 | |
333 | reconnect_all (); |
360 | reconnect_all (); |
334 | |
361 | |
335 | ///////////////////////////////////////////////////////////////////////////// |
362 | ///////////////////////////////////////////////////////////////////////////// |
336 | |
363 | |
337 | tap = new tap_device (); |
364 | tap = new tap_device (); |
338 | if (!tap) //D this, of course, never catches |
365 | if (!tap) //D this, of course, never catches |
339 | { |
366 | { |
340 | slog (L_ERR, _("cannot create network interface '%s', exiting."), conf.ifname); |
367 | slog (L_ERR, _("cannot create network interface '%s'."), conf.ifname); |
341 | exit (EXIT_FAILURE); |
368 | return -1; |
342 | } |
369 | } |
343 | |
370 | |
344 | fcntl (tap->fd, F_SETFD, FD_CLOEXEC); |
371 | fcntl (tap->fd, F_SETFD, FD_CLOEXEC); |
345 | |
372 | |
346 | run_script_cb cb; |
373 | run_script_cb cb; |
347 | cb.set<vpn, &vpn::script_if_init> (this); |
374 | cb.set<vpn, &vpn::script_if_init> (this); |
348 | |
375 | |
349 | if (tap->if_up () && |
376 | if (tap->if_up () && |
350 | !run_script (cb, true)) |
377 | !run_script (cb, true)) |
351 | { |
378 | { |
352 | slog (L_ERR, _("interface initialization command '%s' failed, exiting."), |
379 | slog (L_ERR, _("interface initialization command '%s' failed."), |
353 | tap->if_up ()); |
380 | tap->if_up ()); |
354 | exit (EXIT_FAILURE); |
381 | return -1; |
355 | } |
382 | } |
356 | |
383 | |
357 | cb.set<vpn, &vpn::script_if_up> (this); |
384 | cb.set<vpn, &vpn::script_if_up> (this); |
358 | if (!run_script (cb, true)) |
385 | if (!run_script (cb, true)) |
359 | { |
386 | { |
360 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
387 | slog (L_ERR, _("if-up command execution failed.")); |
361 | exit (EXIT_FAILURE); |
388 | return -1; |
362 | } |
389 | } |
363 | |
390 | |
364 | tap_ev_watcher.start (tap->fd, EV_READ); |
391 | tap_ev_watcher.start (tap->fd, EV_READ); |
365 | |
392 | |
366 | return 0; |
393 | return 0; |
… | |
… | |
494 | return send_ipv4_packet (pkt, si, tos); |
521 | return send_ipv4_packet (pkt, si, tos); |
495 | |
522 | |
496 | case PROT_UDPv4: |
523 | case PROT_UDPv4: |
497 | return send_udpv4_packet (pkt, si, tos); |
524 | return send_udpv4_packet (pkt, si, tos); |
498 | |
525 | |
499 | #if ENABLE_TCP |
526 | #if ENABLE_TCP |
500 | case PROT_TCPv4: |
527 | case PROT_TCPv4: |
501 | return send_tcpv4_packet (pkt, si, tos); |
528 | return send_tcpv4_packet (pkt, si, tos); |
502 | #endif |
529 | #endif |
503 | #if ENABLE_ICMP |
530 | #if ENABLE_ICMP |
504 | case PROT_ICMPv4: |
531 | case PROT_ICMPv4: |
… | |
… | |
532 | if (len > 0) |
559 | if (len > 0) |
533 | { |
560 | { |
534 | pkt->len = len; |
561 | pkt->len = len; |
535 | |
562 | |
536 | // raw sockets deliver the ipv4 header, but don't expect it on sends |
563 | // raw sockets deliver the ipv4 header, but don't expect it on sends |
537 | pkt->skip_hdr (IP_OVERHEAD); |
564 | pkt->skip_hdr (pkt->ipv4_hdr_len ()); |
538 | |
565 | |
539 | recv_vpn_packet (pkt, si); |
566 | recv_vpn_packet (pkt, si); |
540 | } |
567 | } |
541 | else |
568 | else |
542 | { |
569 | { |
… | |
… | |
579 | if (hdr->type == ::conf.icmp_type |
606 | if (hdr->type == ::conf.icmp_type |
580 | && hdr->code == 255) |
607 | && hdr->code == 255) |
581 | { |
608 | { |
582 | // raw sockets deliver the ipv4, but don't expect it on sends |
609 | // raw sockets deliver the ipv4, but don't expect it on sends |
583 | // this is slow, but... |
610 | // this is slow, but... |
584 | pkt->skip_hdr (ICMP_OVERHEAD); |
611 | pkt->skip_hdr (pkt->ipv4_hdr_len () + (ICMP_OVERHEAD - IP_OVERHEAD)); |
585 | |
612 | |
586 | recv_vpn_packet (pkt, si); |
613 | recv_vpn_packet (pkt, si); |
587 | } |
614 | } |
588 | } |
615 | } |
589 | else |
616 | else |
… | |
… | |
724 | |
751 | |
725 | conns.clear (); |
752 | conns.clear (); |
726 | |
753 | |
727 | connection_init (); |
754 | connection_init (); |
728 | |
755 | |
729 | for (configuration::node_vector::iterator i = conf.nodes.begin (); |
756 | for (configuration::node_vector::iterator i = conf.nodes.begin (); i != conf.nodes.end (); ++i) |
730 | i != conf.nodes.end (); ++i) |
757 | conns.push_back (new connection (this, *i)); |
731 | { |
758 | |
732 | connection *conn = new connection (this, *i); |
759 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
733 | conns.push_back (conn); |
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|
734 | conn->establish_connection (); |
760 | (*c)->establish_connection (); |
735 | } |
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|
736 | } |
761 | } |
737 | |
762 | |
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763 | bool |
738 | bool vpn::can_direct (conf_node *src, conf_node *dst) const |
764 | vpn::can_direct (conf_node *src, conf_node *dst) const |
739 | { |
765 | { |
740 | return src != dst |
766 | return src != dst |
741 | && src->may_direct (dst) |
767 | && src->may_direct (dst) |
742 | && dst->may_direct (src) |
768 | && dst->may_direct (src) |
743 | && (((src->protocols & dst->protocols) && src->connectmode == conf_node::C_ALWAYS) |
769 | && (((src->protocols & dst->protocols) && src->connectmode == conf_node::C_ALWAYS) |
744 | || (src->protocols & dst->connectable_protocols ())); |
770 | || (src->protocols & dst->connectable_protocols ())); |
745 | } |
771 | } |
746 | |
772 | |
747 | // only works for indirect and routed connections: find a router |
773 | // only works for indirect and routed connections: find a router |
748 | // from THISNODE to dst |
774 | // from THISNODE to dst |
|
|
775 | connection * |
749 | connection *vpn::find_router_for (const connection *dst) |
776 | vpn::find_router_for (const connection *dst) |
750 | { |
777 | { |
751 | connection *router = 0; |
778 | connection *router = 0; |
752 | |
779 | |
753 | // first try to find a router with a direct connection |
780 | // first try to find a router with a direct connection, route there |
|
|
781 | // regardless of any other considerations. |
754 | { |
782 | { |
755 | u32 prio = 1; |
783 | u32 prio = 1; |
756 | |
784 | |
757 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
785 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
758 | { |
786 | { |
759 | connection *c = *i; |
787 | connection *c = *i; |
760 | |
788 | |
761 | if (c->conf->routerprio > prio |
789 | if (c->conf->routerprio > prio |
762 | && c->conf != THISNODE |
790 | && c->conf != THISNODE |
763 | && c != dst |
|
|
764 | && can_direct (c->conf, dst->conf)) |
791 | && can_direct (c->conf, dst->conf) |
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792 | && c->ictx && c->octx) |
765 | { |
793 | { |
766 | if (c->ictx && c->octx) |
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|
767 | { |
|
|
768 | prio = c->conf->routerprio; |
794 | prio = c->conf->routerprio; |
769 | router = c; |
795 | router = c; |
770 | } |
|
|
771 | else |
|
|
772 | c->establish_connection (); |
|
|
773 | } |
796 | } |
774 | } |
797 | } |
775 | } |
798 | } |
776 | |
799 | |
777 | if (router) |
800 | if (router) |
778 | return router; |
801 | return router; |
779 | |
802 | |
780 | // second try find the router with the highest priority higher than ours |
803 | // second try find the router with the highest priority, higher than ours |
781 | { |
804 | { |
782 | u32 prio = 1; |
805 | u32 prio = THISNODE->routerprio ? THISNODE->routerprio : 1; |
783 | |
806 | |
784 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
807 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
785 | { |
808 | { |
786 | connection *c = *i; |
809 | connection *c = *i; |
787 | |
810 | |
788 | if (c->conf->routerprio > prio |
811 | if (c->conf->routerprio > prio |
789 | && c->conf->routerprio > THISNODE->routerprio |
|
|
790 | && c != dst |
812 | && c != dst |
791 | && c->conf != THISNODE) |
813 | && c->conf != THISNODE |
|
|
814 | && c->ictx && c->octx) |
792 | { |
815 | { |
793 | if (c->ictx && c->octx) |
|
|
794 | { |
|
|
795 | prio = c->conf->routerprio; |
816 | prio = c->conf->routerprio; |
796 | router = c; |
817 | router = c; |
797 | } |
|
|
798 | else |
|
|
799 | c->establish_connection (); |
|
|
800 | } |
818 | } |
801 | } |
819 | } |
802 | } |
820 | } |
|
|
821 | |
803 | return router; |
822 | return router; |
804 | } |
823 | } |
805 | |
824 | |
|
|
825 | void |
806 | void vpn::connection_established (connection *c) |
826 | vpn::connection_established (connection *c) |
807 | { |
827 | { |
808 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
828 | for (conns_vector::iterator i = conns.begin (); i != conns.end (); ++i) |
809 | { |
829 | { |
810 | connection *o = *i; |
830 | connection *o = *i; |
811 | |
831 | |
… | |
… | |
819 | o->rekey (); |
839 | o->rekey (); |
820 | } |
840 | } |
821 | } |
841 | } |
822 | } |
842 | } |
823 | |
843 | |
|
|
844 | void |
824 | void vpn::send_connect_request (int id) |
845 | vpn::send_connect_request (connection *c) |
825 | { |
846 | { |
826 | connection *c = find_router_for (conns[id]); |
847 | connection *r = find_router_for (c); |
827 | |
848 | |
828 | if (c) |
849 | if (r) |
829 | { |
850 | { |
830 | slog (L_TRACE, _("%s: no way to connect, sending mediated connection request via %s."), |
851 | slog (L_TRACE, _("%s: no address known, sending mediated connection request via %s."), |
831 | conns[id]->conf->nodename, c->conf->nodename); |
852 | c->conf->nodename, r->conf->nodename); |
832 | c->send_connect_request (id); |
853 | r->send_connect_request (c->conf->id); |
833 | } |
854 | } |
834 | else |
855 | else |
835 | slog (L_DEBUG, _("%s: no way to connect and no router found: unable to connect."), conns[id]->conf->nodename); |
856 | slog (L_DEBUG, _("%s: no way to connect and no router found: unable to connect at this time."), |
|
|
857 | c->conf->nodename); |
836 | } |
858 | } |
837 | |
859 | |
838 | void |
860 | void |
839 | connection::dump_status () |
861 | connection::dump_status () |
840 | { |
862 | { |