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) 2003-2007 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 |
8 | 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 |
… | |
… | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | GNU General Public License for more details. |
15 | GNU General 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 |
18 | along with gvpe; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
19 | 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 |
20 | */ |
20 | */ |
21 | |
21 | |
22 | #include "config.h" |
22 | #include "config.h" |
23 | |
23 | |
24 | #include <list> |
24 | #include <list> |
… | |
… | |
46 | |
46 | |
47 | vpn network; // THE vpn (bad design...) |
47 | vpn network; // THE vpn (bad design...) |
48 | |
48 | |
49 | ///////////////////////////////////////////////////////////////////////////// |
49 | ///////////////////////////////////////////////////////////////////////////// |
50 | |
50 | |
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51 | static void inline |
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52 | set_tos (int fd, int &tos_prev, int tos) |
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53 | { |
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54 | #if defined(SOL_IP) && defined(IP_TOS) |
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55 | if (tos_prev == tos) |
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56 | return; |
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57 | |
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58 | tos_prev = tos; |
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59 | setsockopt (fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
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60 | #endif |
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61 | } |
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62 | |
51 | void |
63 | void |
52 | vpn::script_init_env () |
64 | vpn::script_init_env () |
53 | { |
65 | { |
54 | // the tunnel device mtu should be the physical mtu - overhead |
66 | // the tunnel device mtu should be the physical mtu - overhead |
55 | // the tricky part is rounding to the cipher key blocksize |
67 | // the tricky part is rounding to the cipher key blocksize |
… | |
… | |
58 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
70 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
59 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
71 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
60 | |
72 | |
61 | char *env; |
73 | char *env; |
62 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
74 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
63 | asprintf (&env, "NODENAME=%s", THISNODE->nodename); putenv (env); |
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64 | asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env); |
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65 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
75 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
66 | asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); |
76 | asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); |
67 | asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); |
77 | asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); |
68 | asprintf (&env, "MTU=%d", mtu); putenv (env); |
78 | asprintf (&env, "MTU=%d", mtu); putenv (env); |
69 | asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x", |
79 | asprintf (&env, "NODES=%d", conns.size ()); putenv (env); |
70 | 0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8, |
80 | asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env); |
71 | THISNODE->id & 0xff); putenv (env); |
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72 | |
81 | |
73 | // TODO: info for other nodes, maybe? |
82 | conns [THISNODE->id - 1]->script_init_env (""); |
74 | } |
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75 | |
83 | |
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84 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
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85 | { |
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86 | char ext[16]; |
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87 | snprintf (ext, 16, "_%d", (*c)->conf->id); |
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88 | (*c)->script_init_env (ext); |
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89 | } |
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90 | } |
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91 | |
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92 | inline const char * |
76 | const char *vpn::script_if_init () |
93 | vpn::script_if_init () |
77 | { |
94 | { |
78 | script_init_env (); |
95 | script_init_env (); |
79 | |
96 | |
80 | return tap->if_up (); |
97 | return tap->if_up (); |
81 | } |
98 | } |
82 | |
99 | |
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100 | inline const char * |
83 | const char *vpn::script_if_up () |
101 | vpn::script_if_up () |
84 | { |
102 | { |
85 | script_init_env (); |
103 | script_init_env (); |
86 | |
104 | |
87 | char *filename; |
105 | char *filename; |
88 | asprintf (&filename, |
106 | asprintf (&filename, |
… | |
… | |
94 | } |
112 | } |
95 | |
113 | |
96 | int |
114 | int |
97 | vpn::setup () |
115 | vpn::setup () |
98 | { |
116 | { |
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117 | ipv4_tos = -1; |
99 | ipv4_fd = -1; |
118 | ipv4_fd = -1; |
100 | |
119 | |
101 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
120 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
102 | { |
121 | { |
103 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
122 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
104 | |
123 | |
105 | if (ipv4_fd < 0) |
124 | if (ipv4_fd < 0) |
106 | return -1; |
125 | return -1; |
107 | |
126 | |
108 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
127 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
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128 | fcntl (ipv4_fd, F_SETFD, FD_CLOEXEC); |
109 | |
129 | |
110 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
130 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
111 | // this I really consider a linux bug. I am neither connected |
131 | // this I really consider a linux bug. I am neither connected |
112 | // nor do I fragment myself. Linux still sets DF and doesn't |
132 | // nor do I fragment myself. Linux still sets DF and doesn't |
113 | // fragment for me sometimes. |
133 | // fragment for me sometimes. |
… | |
… | |
123 | { |
143 | { |
124 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno)); |
144 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno)); |
125 | exit (EXIT_FAILURE); |
145 | exit (EXIT_FAILURE); |
126 | } |
146 | } |
127 | |
147 | |
128 | ipv4_ev_watcher.start (ipv4_fd, EVENT_READ); |
148 | ipv4_ev_watcher.start (ipv4_fd, EV_READ); |
129 | } |
149 | } |
130 | |
150 | |
|
|
151 | udpv4_tos = -1; |
131 | udpv4_fd = -1; |
152 | udpv4_fd = -1; |
132 | |
153 | |
133 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
154 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
134 | { |
155 | { |
135 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
156 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
136 | |
157 | |
137 | if (udpv4_fd < 0) |
158 | if (udpv4_fd < 0) |
138 | return -1; |
159 | return -1; |
139 | |
160 | |
140 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
161 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
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162 | fcntl (udpv4_fd, F_SETFD, FD_CLOEXEC); |
141 | |
163 | |
142 | // standard daemon practise... |
164 | // standard daemon practise... |
143 | { |
165 | { |
144 | int oval = 1; |
166 | int oval = 1; |
145 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
167 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
161 | { |
183 | { |
162 | slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno)); |
184 | slog (L_ERR, _("can't bind udpv4 on %s: %s"), (const char *)si, strerror (errno)); |
163 | exit (EXIT_FAILURE); |
185 | exit (EXIT_FAILURE); |
164 | } |
186 | } |
165 | |
187 | |
166 | udpv4_ev_watcher.start (udpv4_fd, EVENT_READ); |
188 | udpv4_ev_watcher.start (udpv4_fd, EV_READ); |
167 | } |
189 | } |
168 | |
190 | |
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191 | icmpv4_tos = -1; |
169 | icmpv4_fd = -1; |
192 | icmpv4_fd = -1; |
170 | |
193 | |
171 | #if ENABLE_ICMP |
194 | #if ENABLE_ICMP |
172 | if (THISNODE->protocols & PROT_ICMPv4) |
195 | if (THISNODE->protocols & PROT_ICMPv4) |
173 | { |
196 | { |
174 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
197 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
175 | |
198 | |
176 | if (icmpv4_fd < 0) |
199 | if (icmpv4_fd < 0) |
177 | return -1; |
200 | return -1; |
178 | |
201 | |
179 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
202 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
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203 | fcntl (icmpv4_fd, F_SETFD, FD_CLOEXEC); |
180 | |
204 | |
181 | #ifdef ICMP_FILTER |
205 | #ifdef ICMP_FILTER |
182 | { |
206 | { |
183 | icmp_filter oval; |
207 | icmp_filter oval; |
184 | oval.data = 0xffffffff; |
208 | oval.data = 0xffffffff; |
… | |
… | |
193 | // this I really consider a linux bug. I am neither connected |
217 | // this I really consider a linux bug. I am neither connected |
194 | // nor do I fragment myself. Linux still sets DF and doesn't |
218 | // nor do I fragment myself. Linux still sets DF and doesn't |
195 | // fragment for me sometimes. |
219 | // fragment for me sometimes. |
196 | { |
220 | { |
197 | int oval = IP_PMTUDISC_DONT; |
221 | int oval = IP_PMTUDISC_DONT; |
198 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
222 | setsockopt (icmpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
199 | } |
223 | } |
200 | #endif |
224 | #endif |
201 | |
225 | |
202 | sockinfo si (THISNODE, PROT_ICMPv4); |
226 | sockinfo si (THISNODE, PROT_ICMPv4); |
203 | |
227 | |
… | |
… | |
205 | { |
229 | { |
206 | slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno)); |
230 | slog (L_ERR, _("can't bind icmpv4 on %s: %s"), (const char *)si, strerror (errno)); |
207 | exit (EXIT_FAILURE); |
231 | exit (EXIT_FAILURE); |
208 | } |
232 | } |
209 | |
233 | |
210 | icmpv4_ev_watcher.start (icmpv4_fd, EVENT_READ); |
234 | icmpv4_ev_watcher.start (icmpv4_fd, EV_READ); |
211 | } |
235 | } |
212 | #endif |
236 | #endif |
213 | |
237 | |
214 | tcpv4_fd = -1; |
238 | tcpv4_fd = -1; |
215 | |
239 | |
… | |
… | |
220 | |
244 | |
221 | if (tcpv4_fd < 0) |
245 | if (tcpv4_fd < 0) |
222 | return -1; |
246 | return -1; |
223 | |
247 | |
224 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
248 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
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249 | fcntl (tcpv4_fd, F_SETFD, FD_CLOEXEC); |
225 | |
250 | |
226 | // standard daemon practise... |
251 | // standard daemon practise... |
227 | { |
252 | { |
228 | int oval = 1; |
253 | int oval = 1; |
229 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
254 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
241 | { |
266 | { |
242 | slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
267 | slog (L_ERR, _("can't listen tcpv4 on %s: %s"), (const char *)si, strerror (errno)); |
243 | exit (EXIT_FAILURE); |
268 | exit (EXIT_FAILURE); |
244 | } |
269 | } |
245 | |
270 | |
246 | tcpv4_ev_watcher.start (tcpv4_fd, EVENT_READ); |
271 | tcpv4_ev_watcher.start (tcpv4_fd, EV_READ); |
247 | } |
272 | } |
248 | #endif |
273 | #endif |
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274 | |
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275 | dnsv4_tos = -1; |
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276 | dnsv4_fd = -1; |
249 | |
277 | |
250 | #if ENABLE_DNS |
278 | #if ENABLE_DNS |
251 | if (THISNODE->protocols & PROT_DNSv4) |
279 | if (THISNODE->protocols & PROT_DNSv4) |
252 | { |
280 | { |
253 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
281 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
… | |
… | |
255 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
283 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
256 | |
284 | |
257 | if (dnsv4_fd < 0) |
285 | if (dnsv4_fd < 0) |
258 | return -1; |
286 | return -1; |
259 | |
287 | |
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288 | fcntl (dnsv4_fd, F_SETFL, O_NONBLOCK); |
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289 | fcntl (dnsv4_fd, F_SETFD, FD_CLOEXEC); |
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290 | |
260 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
291 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
261 | // this I really consider a linux bug. I am neither connected |
292 | // this I really consider a linux bug. I am neither connected |
262 | // nor do I fragment myself. Linux still sets DF and doesn't |
293 | // nor do I fragment myself. Linux still sets DF and doesn't |
263 | // fragment for me sometimes. |
294 | // fragment for me sometimes. |
264 | { |
295 | { |
265 | int oval = IP_PMTUDISC_DONT; |
296 | int oval = IP_PMTUDISC_DONT; |
266 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
297 | setsockopt (dnsv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
267 | } |
298 | } |
268 | #endif |
299 | # endif |
269 | |
300 | |
270 | // standard daemon practise... |
301 | // standard daemon practise... |
271 | { |
302 | { |
272 | int oval = 1; |
303 | int oval = 1; |
273 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
304 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
281 | { |
312 | { |
282 | slog (L_ERR, _("can't bind dnsv4 on %s: %s"), (const char *)si, strerror (errno)); |
313 | slog (L_ERR, _("can't bind dnsv4 on %s: %s"), (const char *)si, strerror (errno)); |
283 | exit (EXIT_FAILURE); |
314 | exit (EXIT_FAILURE); |
284 | } |
315 | } |
285 | |
316 | |
286 | dnsv4_ev_watcher.start (dnsv4_fd, EVENT_READ); |
317 | dnsv4_ev_watcher.start (dnsv4_fd, EV_READ); |
287 | } |
318 | } |
288 | #endif |
319 | #endif |
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320 | |
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321 | ///////////////////////////////////////////////////////////////////////////// |
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322 | |
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323 | reconnect_all (); |
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324 | |
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325 | ///////////////////////////////////////////////////////////////////////////// |
289 | |
326 | |
290 | tap = new tap_device (); |
327 | tap = new tap_device (); |
291 | if (!tap) //D this, of course, never catches |
328 | if (!tap) //D this, of course, never catches |
292 | { |
329 | { |
293 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
330 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
294 | exit (EXIT_FAILURE); |
331 | exit (EXIT_FAILURE); |
295 | } |
332 | } |
296 | |
333 | |
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334 | fcntl (tap->fd, F_SETFD, FD_CLOEXEC); |
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335 | |
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336 | run_script_cb cb; |
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337 | cb.set<vpn, &vpn::script_if_init> (this); |
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338 | |
297 | if (tap->if_up () && |
339 | if (tap->if_up () && |
298 | !run_script (run_script_cb (this, &vpn::script_if_init), true)) |
340 | !run_script (cb, true)) |
299 | { |
341 | { |
300 | slog (L_ERR, _("interface initialization command '%s' failed, exiting."), |
342 | slog (L_ERR, _("interface initialization command '%s' failed, exiting."), |
301 | tap->if_up ()); |
343 | tap->if_up ()); |
302 | exit (EXIT_FAILURE); |
344 | exit (EXIT_FAILURE); |
303 | } |
345 | } |
304 | |
346 | |
305 | if (!run_script (run_script_cb (this, &vpn::script_if_up), true)) |
347 | cb.set<vpn, &vpn::script_if_up> (this); |
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348 | if (!run_script (cb, true)) |
306 | { |
349 | { |
307 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
350 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
308 | exit (EXIT_FAILURE); |
351 | exit (EXIT_FAILURE); |
309 | } |
352 | } |
310 | |
353 | |
311 | tap_ev_watcher.start (tap->fd, EVENT_READ); |
354 | tap_ev_watcher.start (tap->fd, EV_READ); |
312 | |
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313 | reconnect_all (); |
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314 | |
355 | |
315 | return 0; |
356 | return 0; |
316 | } |
357 | } |
317 | |
358 | |
318 | bool |
359 | bool |
319 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
360 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
320 | { |
361 | { |
321 | #if defined(SOL_IP) && defined(IP_TOS) |
362 | set_tos (ipv4_fd, ipv4_tos, tos); |
322 | setsockopt (ipv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
|
323 | #endif |
|
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324 | sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
363 | sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
325 | |
364 | |
326 | return true; |
365 | return true; |
327 | } |
366 | } |
328 | |
367 | |
… | |
… | |
351 | |
390 | |
352 | #if ENABLE_ICMP |
391 | #if ENABLE_ICMP |
353 | bool |
392 | bool |
354 | vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
393 | vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
355 | { |
394 | { |
356 | #if defined(SOL_IP) && defined(IP_TOS) |
|
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357 | setsockopt (icmpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
|
358 | #endif |
|
|
359 | |
|
|
360 | pkt->unshift_hdr (4); |
395 | pkt->unshift_hdr (4); |
361 | |
396 | |
362 | icmp_header *hdr = (icmp_header *)&((*pkt)[0]); |
397 | icmp_header *hdr = (icmp_header *)&((*pkt)[0]); |
363 | hdr->type = ::conf.icmp_type; |
398 | hdr->type = ::conf.icmp_type; |
364 | hdr->code = 255; |
399 | hdr->code = 255; |
365 | hdr->checksum = 0; |
400 | hdr->checksum = 0; |
366 | hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len); |
401 | hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len); |
367 | |
402 | |
|
|
403 | set_tos (icmpv4_fd, icmpv4_tos, tos); |
368 | sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
404 | sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
369 | |
405 | |
370 | return true; |
406 | return true; |
371 | } |
407 | } |
372 | #endif |
408 | #endif |
373 | |
409 | |
374 | bool |
410 | bool |
375 | vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
411 | vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
376 | { |
412 | { |
377 | #if defined(SOL_IP) && defined(IP_TOS) |
413 | set_tos (udpv4_fd, udpv4_tos, tos); |
378 | setsockopt (udpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
|
379 | #endif |
|
|
380 | sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
414 | sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
381 | |
415 | |
382 | return true; |
416 | return true; |
383 | } |
417 | } |
384 | |
418 | |
… | |
… | |
395 | { |
429 | { |
396 | // broadcast, this is ugly, but due to the security policy |
430 | // broadcast, this is ugly, but due to the security policy |
397 | // we have to connect to all hosts... |
431 | // we have to connect to all hosts... |
398 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
432 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
399 | if ((*c)->conf != THISNODE) |
433 | if ((*c)->conf != THISNODE) |
400 | (*c)->inject_data_packet (pkt, true); |
434 | (*c)->inject_data_packet (pkt); |
401 | } |
435 | } |
402 | } |
436 | } |
403 | |
437 | |
404 | void |
438 | void |
405 | vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
439 | vpn::recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi) |
… | |
… | |
446 | { |
480 | { |
447 | switch (si.prot) |
481 | switch (si.prot) |
448 | { |
482 | { |
449 | case PROT_IPv4: |
483 | case PROT_IPv4: |
450 | return send_ipv4_packet (pkt, si, tos); |
484 | return send_ipv4_packet (pkt, si, tos); |
|
|
485 | |
451 | case PROT_UDPv4: |
486 | case PROT_UDPv4: |
452 | return send_udpv4_packet (pkt, si, tos); |
487 | return send_udpv4_packet (pkt, si, tos); |
|
|
488 | |
453 | #if ENABLE_TCP |
489 | #if ENABLE_TCP |
454 | case PROT_TCPv4: |
490 | case PROT_TCPv4: |
455 | return send_tcpv4_packet (pkt, si, tos); |
491 | return send_tcpv4_packet (pkt, si, tos); |
456 | #endif |
492 | #endif |
457 | #if ENABLE_ICMP |
493 | #if ENABLE_ICMP |
… | |
… | |
460 | #endif |
496 | #endif |
461 | #if ENABLE_DNS |
497 | #if ENABLE_DNS |
462 | case PROT_DNSv4: |
498 | case PROT_DNSv4: |
463 | return send_dnsv4_packet (pkt, si, tos); |
499 | return send_dnsv4_packet (pkt, si, tos); |
464 | #endif |
500 | #endif |
465 | |
|
|
466 | default: |
501 | default: |
467 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si); |
502 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si); |
468 | } |
503 | } |
469 | |
504 | |
470 | return false; |
505 | return false; |
471 | } |
506 | } |
472 | |
507 | |
473 | void |
508 | inline void |
474 | vpn::ipv4_ev (io_watcher &w, short revents) |
509 | vpn::ipv4_ev (ev::io &w, int revents) |
475 | { |
510 | { |
476 | if (revents & EVENT_READ) |
511 | if (revents & EV_READ) |
477 | { |
512 | { |
478 | vpn_packet *pkt = new vpn_packet; |
513 | vpn_packet *pkt = new vpn_packet; |
479 | struct sockaddr_in sa; |
514 | struct sockaddr_in sa; |
480 | socklen_t sa_len = sizeof (sa); |
515 | socklen_t sa_len = sizeof (sa); |
481 | int len; |
516 | int len; |
… | |
… | |
509 | exit (EXIT_FAILURE); |
544 | exit (EXIT_FAILURE); |
510 | } |
545 | } |
511 | } |
546 | } |
512 | |
547 | |
513 | #if ENABLE_ICMP |
548 | #if ENABLE_ICMP |
514 | void |
549 | inline void |
515 | vpn::icmpv4_ev (io_watcher &w, short revents) |
550 | vpn::icmpv4_ev (ev::io &w, int revents) |
516 | { |
551 | { |
517 | if (revents & EVENT_READ) |
552 | if (revents & EV_READ) |
518 | { |
553 | { |
519 | vpn_packet *pkt = new vpn_packet; |
554 | vpn_packet *pkt = new vpn_packet; |
520 | struct sockaddr_in sa; |
555 | struct sockaddr_in sa; |
521 | socklen_t sa_len = sizeof (sa); |
556 | socklen_t sa_len = sizeof (sa); |
522 | int len; |
557 | int len; |
… | |
… | |
557 | exit (EXIT_FAILURE); |
592 | exit (EXIT_FAILURE); |
558 | } |
593 | } |
559 | } |
594 | } |
560 | #endif |
595 | #endif |
561 | |
596 | |
562 | void |
597 | inline void |
563 | vpn::udpv4_ev (io_watcher &w, short revents) |
598 | vpn::udpv4_ev (ev::io &w, int revents) |
564 | { |
599 | { |
565 | if (revents & EVENT_READ) |
600 | if (revents & EV_READ) |
566 | { |
601 | { |
567 | vpn_packet *pkt = new vpn_packet; |
602 | vpn_packet *pkt = new vpn_packet; |
568 | struct sockaddr_in sa; |
603 | struct sockaddr_in sa; |
569 | socklen_t sa_len = sizeof (sa); |
604 | socklen_t sa_len = sizeof (sa); |
570 | int len; |
605 | int len; |
… | |
… | |
594 | revents); |
629 | revents); |
595 | exit (EXIT_FAILURE); |
630 | exit (EXIT_FAILURE); |
596 | } |
631 | } |
597 | } |
632 | } |
598 | |
633 | |
599 | void |
634 | inline void |
600 | vpn::tap_ev (io_watcher &w, short revents) |
635 | vpn::tap_ev (ev::io &w, int revents) |
601 | { |
636 | { |
602 | if (revents & EVENT_READ) |
637 | if (revents & EV_READ) |
603 | { |
638 | { |
604 | /* process data */ |
639 | /* process data */ |
605 | tap_packet *pkt; |
640 | tap_packet *pkt; |
606 | |
641 | |
607 | pkt = tap->recv (); |
642 | pkt = tap->recv (); |
… | |
… | |
636 | } |
671 | } |
637 | else |
672 | else |
638 | abort (); |
673 | abort (); |
639 | } |
674 | } |
640 | |
675 | |
641 | void |
676 | inline void |
642 | vpn::event_cb (time_watcher &w) |
677 | vpn::event_cb (ev::timer &w, int) |
643 | { |
678 | { |
644 | if (events) |
679 | if (events) |
645 | { |
680 | { |
646 | if (events & EVENT_SHUTDOWN) |
681 | if (events & EVENT_SHUTDOWN) |
647 | { |
682 | { |
… | |
… | |
738 | } |
773 | } |
739 | |
774 | |
740 | void |
775 | void |
741 | vpn::dump_status () |
776 | vpn::dump_status () |
742 | { |
777 | { |
743 | slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)NOW); |
778 | slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)ev_now ()); |
744 | |
779 | |
745 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
780 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
746 | (*c)->dump_status (); |
781 | (*c)->dump_status (); |
747 | |
782 | |
748 | slog (L_NOTICE, _("END status dump")); |
783 | slog (L_NOTICE, _("END status dump")); |
749 | } |
784 | } |
750 | |
785 | |
751 | vpn::vpn (void) |
786 | vpn::vpn (void) |
|
|
787 | { |
752 | : event (this, &vpn::event_cb) |
788 | event .set<vpn, &vpn::event_cb > (this); |
753 | , udpv4_ev_watcher (this, &vpn::udpv4_ev) |
789 | udpv4_ev_watcher .set<vpn, &vpn::udpv4_ev > (this); |
754 | , ipv4_ev_watcher (this, &vpn::ipv4_ev) |
790 | ipv4_ev_watcher .set<vpn, &vpn::ipv4_ev > (this); |
755 | #if ENABLE_TCP |
791 | #if ENABLE_TCP |
756 | , tcpv4_ev_watcher (this, &vpn::tcpv4_ev) |
792 | tcpv4_ev_watcher .set<vpn, &vpn::tcpv4_ev > (this); |
757 | #endif |
793 | #endif |
758 | #if ENABLE_ICMP |
794 | #if ENABLE_ICMP |
759 | , icmpv4_ev_watcher(this, &vpn::icmpv4_ev) |
795 | icmpv4_ev_watcher.set<vpn, &vpn::icmpv4_ev> (this); |
760 | #endif |
796 | #endif |
761 | #if ENABLE_DNS |
797 | #if ENABLE_DNS |
762 | , dnsv4_ev_watcher (this, &vpn::dnsv4_ev) |
798 | dnsv4_ev_watcher .set<vpn, &vpn::dnsv4_ev > (this); |
763 | #endif |
799 | #endif |
764 | , tap_ev_watcher (this, &vpn::tap_ev) |
800 | tap_ev_watcher .set<vpn, &vpn::tap_ev > (this); |
765 | { |
|
|
766 | } |
801 | } |
767 | |
802 | |
768 | vpn::~vpn () |
803 | vpn::~vpn () |
769 | { |
804 | { |
770 | } |
805 | } |