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58 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
58 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
59 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
59 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
60 | |
60 | |
61 | char *env; |
61 | char *env; |
62 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
62 | 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); |
63 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
66 | asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); |
64 | asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); |
67 | asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); |
65 | asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); |
68 | asprintf (&env, "MTU=%d", mtu); putenv (env); |
66 | asprintf (&env, "MTU=%d", mtu); putenv (env); |
69 | asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x", |
67 | asprintf (&env, "NODES=%d", conns.size ()); putenv (env); |
70 | 0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8, |
68 | asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env); |
71 | THISNODE->id & 0xff); putenv (env); |
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72 | |
69 | |
73 | // TODO: info for other nodes, maybe? |
70 | conns [THISNODE->id - 1]->script_init_env (""); |
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71 | |
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72 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
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73 | { |
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74 | char ext[16]; |
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75 | snprintf (ext, 16, "_%d", (*c)->conf->id); |
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76 | (*c)->script_init_env (ext); |
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77 | } |
74 | } |
78 | } |
75 | |
79 | |
76 | const char *vpn::script_if_init () |
80 | const char *vpn::script_if_init () |
77 | { |
81 | { |
78 | script_init_env (); |
82 | script_init_env (); |
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193 | // this I really consider a linux bug. I am neither connected |
197 | // this I really consider a linux bug. I am neither connected |
194 | // nor do I fragment myself. Linux still sets DF and doesn't |
198 | // nor do I fragment myself. Linux still sets DF and doesn't |
195 | // fragment for me sometimes. |
199 | // fragment for me sometimes. |
196 | { |
200 | { |
197 | int oval = IP_PMTUDISC_DONT; |
201 | int oval = IP_PMTUDISC_DONT; |
198 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
202 | setsockopt (icmpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
199 | } |
203 | } |
200 | #endif |
204 | #endif |
201 | |
205 | |
202 | sockinfo si (THISNODE, PROT_ICMPv4); |
206 | sockinfo si (THISNODE, PROT_ICMPv4); |
203 | |
207 | |
… | |
… | |
255 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
259 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
256 | |
260 | |
257 | if (dnsv4_fd < 0) |
261 | if (dnsv4_fd < 0) |
258 | return -1; |
262 | return -1; |
259 | |
263 | |
260 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
264 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
261 | // this I really consider a linux bug. I am neither connected |
265 | // this I really consider a linux bug. I am neither connected |
262 | // nor do I fragment myself. Linux still sets DF and doesn't |
266 | // nor do I fragment myself. Linux still sets DF and doesn't |
263 | // fragment for me sometimes. |
267 | // fragment for me sometimes. |
264 | { |
268 | { |
265 | int oval = IP_PMTUDISC_DONT; |
269 | int oval = IP_PMTUDISC_DONT; |
266 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
270 | setsockopt (dnsv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
267 | } |
271 | } |
268 | #endif |
272 | # endif |
269 | |
273 | |
270 | // standard daemon practise... |
274 | // standard daemon practise... |
271 | { |
275 | { |
272 | int oval = 1; |
276 | int oval = 1; |
273 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
277 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
285 | |
289 | |
286 | dnsv4_ev_watcher.start (dnsv4_fd, EVENT_READ); |
290 | dnsv4_ev_watcher.start (dnsv4_fd, EVENT_READ); |
287 | } |
291 | } |
288 | #endif |
292 | #endif |
289 | |
293 | |
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294 | ///////////////////////////////////////////////////////////////////////////// |
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295 | |
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296 | reconnect_all (); |
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297 | |
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298 | ///////////////////////////////////////////////////////////////////////////// |
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299 | |
290 | tap = new tap_device (); |
300 | tap = new tap_device (); |
291 | if (!tap) //D this, of course, never catches |
301 | if (!tap) //D this, of course, never catches |
292 | { |
302 | { |
293 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
303 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
294 | exit (EXIT_FAILURE); |
304 | exit (EXIT_FAILURE); |
… | |
… | |
307 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
317 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
308 | exit (EXIT_FAILURE); |
318 | exit (EXIT_FAILURE); |
309 | } |
319 | } |
310 | |
320 | |
311 | tap_ev_watcher.start (tap->fd, EVENT_READ); |
321 | tap_ev_watcher.start (tap->fd, EVENT_READ); |
312 | |
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313 | reconnect_all (); |
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314 | |
322 | |
315 | return 0; |
323 | return 0; |
316 | } |
324 | } |
317 | |
325 | |
318 | bool |
326 | bool |