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Comparing gvpe/src/vpn.C (file contents):
Revision 1.32 by pcg, Mon Mar 7 01:31:26 2005 UTC vs.
Revision 1.35 by pcg, Fri Apr 8 16:12:49 2005 UTC

… …
46 46
47vpn network; // THE vpn (bad design...) 47vpn network; // THE vpn (bad design...)
48 48
49///////////////////////////////////////////////////////////////////////////// 49/////////////////////////////////////////////////////////////////////////////
50 50
51const char *vpn::script_if_up () 51void
52vpn::script_init_env ()
52{ 53{
53 // the tunnel device mtu should be the physical mtu - overhead 54 // the tunnel device mtu should be the physical mtu - overhead
54 // the tricky part is rounding to the cipher key blocksize 55 // the tricky part is rounding to the cipher key blocksize
55 int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD; 56 int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD;
56 mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion 57 mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion
57 mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round 58 mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round
58 mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again 59 mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again
59 60
60 char *env; 61 char *env;
61 asprintf (&env, "CONFBASE=%s", confbase); putenv (env); 62 asprintf (&env, "CONFBASE=%s", confbase); putenv (env);
62 asprintf (&env, "NODENAME=%s", THISNODE->nodename); putenv (env);
63 asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env);
64 asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); 63 asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env);
65 asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); 64 asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env);
66 asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); 65 asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env);
67 asprintf (&env, "MTU=%d", mtu); putenv (env); 66 asprintf (&env, "MTU=%d", mtu); putenv (env);
68 asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x", 67 asprintf (&env, "NODES=%d", conns.size ()); putenv (env);
69 0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8, 68 asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env);
70 THISNODE->id & 0xff);
71 putenv (env);
72 69
70 conns [THISNODE->id - 1]->script_init_env ("");
71
72 for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c)
73 {
74 char ext[16];
75 snprintf (ext, 16, "_%d", (*c)->conf->id);
76 (*c)->script_init_env (ext);
77 }
78}
79
80const char *vpn::script_if_init ()
81{
82 script_init_env ();
83
84 return tap->if_up ();
85}
86
87const char *vpn::script_if_up ()
88{
89 script_init_env ();
90
91 char *filename;
92 asprintf (&filename,
93 "%s/%s",
94 confbase,
73 return ::conf.script_if_up ? ::conf.script_if_up : "if-up"; 95 ::conf.script_if_up ? ::conf.script_if_up : "if-up");
96
97 return filename;
74} 98}
75 99
76int 100int
77vpn::setup () 101vpn::setup ()
78{ 102{
… …
235 dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); 259 dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP);
236 260
237 if (dnsv4_fd < 0) 261 if (dnsv4_fd < 0)
238 return -1; 262 return -1;
239 263
240#if defined(SOL_IP) && defined(IP_MTU_DISCOVER) 264# if defined(SOL_IP) && defined(IP_MTU_DISCOVER)
241 // this I really consider a linux bug. I am neither connected 265 // this I really consider a linux bug. I am neither connected
242 // 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
243 // fragment for me sometimes. 267 // fragment for me sometimes.
244 { 268 {
245 int oval = IP_PMTUDISC_DONT; 269 int oval = IP_PMTUDISC_DONT;
246 setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); 270 setsockopt (dnsv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval);
247 } 271 }
248#endif 272# endif
249 273
250 // standard daemon practise... 274 // standard daemon practise...
251 { 275 {
252 int oval = 1; 276 int oval = 1;
253 setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); 277 setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval);
… …
265 289
266 dnsv4_ev_watcher.start (dnsv4_fd, EVENT_READ); 290 dnsv4_ev_watcher.start (dnsv4_fd, EVENT_READ);
267 } 291 }
268#endif 292#endif
269 293
294 /////////////////////////////////////////////////////////////////////////////
295
296 reconnect_all ();
297
298 /////////////////////////////////////////////////////////////////////////////
299
270 tap = new tap_device (); 300 tap = new tap_device ();
271 if (!tap) //D this, of course, never catches 301 if (!tap) //D this, of course, never catches
272 { 302 {
273 slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); 303 slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname);
274 exit (EXIT_FAILURE); 304 exit (EXIT_FAILURE);
275 } 305 }
276 306
307 if (tap->if_up () &&
308 !run_script (run_script_cb (this, &vpn::script_if_init), true))
309 {
310 slog (L_ERR, _("interface initialization command '%s' failed, exiting."),
311 tap->if_up ());
312 exit (EXIT_FAILURE);
313 }
314
277 run_script (run_script_cb (this, &vpn::script_if_up), true); 315 if (!run_script (run_script_cb (this, &vpn::script_if_up), true))
316 {
317 slog (L_ERR, _("if-up command execution failed, exiting."));
318 exit (EXIT_FAILURE);
319 }
278 320
279 tap_ev_watcher.start (tap->fd, EVENT_READ); 321 tap_ev_watcher.start (tap->fd, EVENT_READ);
280
281 reconnect_all ();
282 322
283 return 0; 323 return 0;
284} 324}
285 325
286bool 326bool

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