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 | |
51 | const char *vpn::script_if_up () |
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 | |
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63 | void |
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64 | vpn::script_init_env () |
52 | { |
65 | { |
53 | // the tunnel device mtu should be the physical mtu - overhead |
66 | // the tunnel device mtu should be the physical mtu - overhead |
54 | // the tricky part is rounding to the cipher key blocksize |
67 | // the tricky part is rounding to the cipher key blocksize |
55 | int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD; |
68 | int mtu = conf.mtu - ETH_OVERHEAD - VPE_OVERHEAD - MAX_OVERHEAD; |
56 | mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion |
69 | mtu += ETH_OVERHEAD - 6 - 6; // now we have the data portion |
57 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
70 | mtu -= mtu % EVP_CIPHER_block_size (CIPHER); // round |
58 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
71 | mtu -= ETH_OVERHEAD - 6 - 6; // and get interface mtu again |
59 | |
72 | |
60 | char *env; |
73 | char *env; |
61 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
74 | asprintf (&env, "CONFBASE=%s", confbase); putenv (env); |
62 | asprintf (&env, "NODENAME=%s", THISNODE->nodename); putenv (env); |
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63 | asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env); |
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64 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
75 | asprintf (&env, "IFNAME=%s", tap->interface ()); putenv (env); |
65 | asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); |
76 | asprintf (&env, "IFTYPE=%s", IFTYPE); putenv (env); |
66 | asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); |
77 | asprintf (&env, "IFSUBTYPE=%s", IFSUBTYPE); putenv (env); |
67 | asprintf (&env, "MTU=%d", mtu); putenv (env); |
78 | asprintf (&env, "MTU=%d", mtu); putenv (env); |
68 | asprintf (&env, "MAC=%02x:%02x:%02x:%02x:%02x:%02x", |
79 | asprintf (&env, "NODES=%d", conns.size ()); putenv (env); |
69 | 0xfe, 0xfd, 0x80, 0x00, THISNODE->id >> 8, |
80 | asprintf (&env, "NODEID=%d", THISNODE->id); putenv (env); |
70 | THISNODE->id & 0xff); |
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71 | putenv (env); |
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72 | |
81 | |
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82 | conns [THISNODE->id - 1]->script_init_env (""); |
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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 | const char *vpn::script_if_init () |
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93 | { |
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94 | script_init_env (); |
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95 | |
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96 | return tap->if_up (); |
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97 | } |
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98 | |
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99 | const char *vpn::script_if_up () |
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100 | { |
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101 | script_init_env (); |
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102 | |
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103 | char *filename; |
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104 | asprintf (&filename, |
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105 | "%s/%s", |
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106 | confbase, |
73 | return ::conf.script_if_up ? ::conf.script_if_up : "if-up"; |
107 | ::conf.script_if_up ? ::conf.script_if_up : "if-up"); |
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108 | |
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109 | return filename; |
74 | } |
110 | } |
75 | |
111 | |
76 | int |
112 | int |
77 | vpn::setup () |
113 | vpn::setup () |
78 | { |
114 | { |
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115 | ipv4_tos = -1; |
79 | ipv4_fd = -1; |
116 | ipv4_fd = -1; |
80 | |
117 | |
81 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
118 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
82 | { |
119 | { |
83 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
120 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
84 | |
121 | |
85 | if (ipv4_fd < 0) |
122 | if (ipv4_fd < 0) |
86 | return -1; |
123 | return -1; |
87 | |
124 | |
88 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
125 | fcntl (ipv4_fd, F_SETFL, O_NONBLOCK); |
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126 | fcntl (ipv4_fd, F_SETFD, FD_CLOEXEC); |
89 | |
127 | |
90 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
128 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
91 | // this I really consider a linux bug. I am neither connected |
129 | // this I really consider a linux bug. I am neither connected |
92 | // 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 |
93 | // fragment for me sometimes. |
131 | // fragment for me sometimes. |
… | |
… | |
103 | { |
141 | { |
104 | 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)); |
105 | exit (EXIT_FAILURE); |
143 | exit (EXIT_FAILURE); |
106 | } |
144 | } |
107 | |
145 | |
108 | ipv4_ev_watcher.start (ipv4_fd, EVENT_READ); |
146 | ipv4_ev_watcher.start (ipv4_fd, EV_READ); |
109 | } |
147 | } |
110 | |
148 | |
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149 | udpv4_tos = -1; |
111 | udpv4_fd = -1; |
150 | udpv4_fd = -1; |
112 | |
151 | |
113 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
152 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
114 | { |
153 | { |
115 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
154 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
116 | |
155 | |
117 | if (udpv4_fd < 0) |
156 | if (udpv4_fd < 0) |
118 | return -1; |
157 | return -1; |
119 | |
158 | |
120 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
159 | fcntl (udpv4_fd, F_SETFL, O_NONBLOCK); |
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160 | fcntl (udpv4_fd, F_SETFD, FD_CLOEXEC); |
121 | |
161 | |
122 | // standard daemon practise... |
162 | // standard daemon practise... |
123 | { |
163 | { |
124 | int oval = 1; |
164 | int oval = 1; |
125 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
165 | setsockopt (udpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
141 | { |
181 | { |
142 | 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)); |
143 | exit (EXIT_FAILURE); |
183 | exit (EXIT_FAILURE); |
144 | } |
184 | } |
145 | |
185 | |
146 | udpv4_ev_watcher.start (udpv4_fd, EVENT_READ); |
186 | udpv4_ev_watcher.start (udpv4_fd, EV_READ); |
147 | } |
187 | } |
148 | |
188 | |
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189 | icmpv4_tos = -1; |
149 | icmpv4_fd = -1; |
190 | icmpv4_fd = -1; |
150 | |
191 | |
151 | #if ENABLE_ICMP |
192 | #if ENABLE_ICMP |
152 | if (THISNODE->protocols & PROT_ICMPv4) |
193 | if (THISNODE->protocols & PROT_ICMPv4) |
153 | { |
194 | { |
154 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
195 | icmpv4_fd = socket (PF_INET, SOCK_RAW, IPPROTO_ICMP); |
155 | |
196 | |
156 | if (icmpv4_fd < 0) |
197 | if (icmpv4_fd < 0) |
157 | return -1; |
198 | return -1; |
158 | |
199 | |
159 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
200 | fcntl (icmpv4_fd, F_SETFL, O_NONBLOCK); |
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201 | fcntl (icmpv4_fd, F_SETFD, FD_CLOEXEC); |
160 | |
202 | |
161 | #ifdef ICMP_FILTER |
203 | #ifdef ICMP_FILTER |
162 | { |
204 | { |
163 | icmp_filter oval; |
205 | icmp_filter oval; |
164 | oval.data = 0xffffffff; |
206 | oval.data = 0xffffffff; |
… | |
… | |
173 | // this I really consider a linux bug. I am neither connected |
215 | // this I really consider a linux bug. I am neither connected |
174 | // 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 |
175 | // fragment for me sometimes. |
217 | // fragment for me sometimes. |
176 | { |
218 | { |
177 | int oval = IP_PMTUDISC_DONT; |
219 | int oval = IP_PMTUDISC_DONT; |
178 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
220 | setsockopt (icmpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
179 | } |
221 | } |
180 | #endif |
222 | #endif |
181 | |
223 | |
182 | sockinfo si (THISNODE, PROT_ICMPv4); |
224 | sockinfo si (THISNODE, PROT_ICMPv4); |
183 | |
225 | |
… | |
… | |
185 | { |
227 | { |
186 | 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)); |
187 | exit (EXIT_FAILURE); |
229 | exit (EXIT_FAILURE); |
188 | } |
230 | } |
189 | |
231 | |
190 | icmpv4_ev_watcher.start (icmpv4_fd, EVENT_READ); |
232 | icmpv4_ev_watcher.start (icmpv4_fd, EV_READ); |
191 | } |
233 | } |
192 | #endif |
234 | #endif |
193 | |
235 | |
194 | tcpv4_fd = -1; |
236 | tcpv4_fd = -1; |
195 | |
237 | |
… | |
… | |
200 | |
242 | |
201 | if (tcpv4_fd < 0) |
243 | if (tcpv4_fd < 0) |
202 | return -1; |
244 | return -1; |
203 | |
245 | |
204 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
246 | fcntl (tcpv4_fd, F_SETFL, O_NONBLOCK); |
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247 | fcntl (tcpv4_fd, F_SETFD, FD_CLOEXEC); |
205 | |
248 | |
206 | // standard daemon practise... |
249 | // standard daemon practise... |
207 | { |
250 | { |
208 | int oval = 1; |
251 | int oval = 1; |
209 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
252 | setsockopt (tcpv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
221 | { |
264 | { |
222 | 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)); |
223 | exit (EXIT_FAILURE); |
266 | exit (EXIT_FAILURE); |
224 | } |
267 | } |
225 | |
268 | |
226 | tcpv4_ev_watcher.start (tcpv4_fd, EVENT_READ); |
269 | tcpv4_ev_watcher.start (tcpv4_fd, EV_READ); |
227 | } |
270 | } |
228 | #endif |
271 | #endif |
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272 | |
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273 | dnsv4_tos = -1; |
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274 | dnsv4_fd = -1; |
229 | |
275 | |
230 | #if ENABLE_DNS |
276 | #if ENABLE_DNS |
231 | if (THISNODE->protocols & PROT_DNSv4) |
277 | if (THISNODE->protocols & PROT_DNSv4) |
232 | { |
278 | { |
233 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
279 | dns_forwarder.set (::conf.dns_forw_host, ::conf.dns_forw_port, PROT_DNSv4); |
… | |
… | |
235 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
281 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
236 | |
282 | |
237 | if (dnsv4_fd < 0) |
283 | if (dnsv4_fd < 0) |
238 | return -1; |
284 | return -1; |
239 | |
285 | |
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286 | fcntl (dnsv4_fd, F_SETFL, O_NONBLOCK); |
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287 | fcntl (dnsv4_fd, F_SETFD, FD_CLOEXEC); |
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288 | |
240 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
289 | # if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
241 | // this I really consider a linux bug. I am neither connected |
290 | // this I really consider a linux bug. I am neither connected |
242 | // nor do I fragment myself. Linux still sets DF and doesn't |
291 | // nor do I fragment myself. Linux still sets DF and doesn't |
243 | // fragment for me sometimes. |
292 | // fragment for me sometimes. |
244 | { |
293 | { |
245 | int oval = IP_PMTUDISC_DONT; |
294 | int oval = IP_PMTUDISC_DONT; |
246 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
295 | setsockopt (dnsv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
247 | } |
296 | } |
248 | #endif |
297 | # endif |
249 | |
298 | |
250 | // standard daemon practise... |
299 | // standard daemon practise... |
251 | { |
300 | { |
252 | int oval = 1; |
301 | int oval = 1; |
253 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
302 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
… | |
… | |
261 | { |
310 | { |
262 | slog (L_ERR, _("can't bind dnsv4 on %s: %s"), (const char *)si, strerror (errno)); |
311 | slog (L_ERR, _("can't bind dnsv4 on %s: %s"), (const char *)si, strerror (errno)); |
263 | exit (EXIT_FAILURE); |
312 | exit (EXIT_FAILURE); |
264 | } |
313 | } |
265 | |
314 | |
266 | dnsv4_ev_watcher.start (dnsv4_fd, EVENT_READ); |
315 | dnsv4_ev_watcher.start (dnsv4_fd, EV_READ); |
267 | } |
316 | } |
268 | #endif |
317 | #endif |
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318 | |
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319 | ///////////////////////////////////////////////////////////////////////////// |
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320 | |
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321 | reconnect_all (); |
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322 | |
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323 | ///////////////////////////////////////////////////////////////////////////// |
269 | |
324 | |
270 | tap = new tap_device (); |
325 | tap = new tap_device (); |
271 | if (!tap) //D this, of course, never catches |
326 | if (!tap) //D this, of course, never catches |
272 | { |
327 | { |
273 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
328 | slog (L_ERR, _("cannot create network interface '%s'"), conf.ifname); |
274 | exit (EXIT_FAILURE); |
329 | exit (EXIT_FAILURE); |
275 | } |
330 | } |
276 | |
331 | |
277 | run_script (run_script_cb (this, &vpn::script_if_up), true); |
332 | fcntl (tap->fd, F_SETFD, FD_CLOEXEC); |
278 | |
333 | |
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334 | run_script_cb cb; |
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335 | cb.set<vpn, &vpn::script_if_init> (this); |
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336 | |
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337 | if (tap->if_up () && |
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338 | !run_script (cb, true)) |
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339 | { |
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340 | slog (L_ERR, _("interface initialization command '%s' failed, exiting."), |
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341 | tap->if_up ()); |
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342 | exit (EXIT_FAILURE); |
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343 | } |
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344 | |
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345 | cb.set<vpn, &vpn::script_if_up> (this); |
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346 | if (!run_script (cb, true)) |
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347 | { |
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348 | slog (L_ERR, _("if-up command execution failed, exiting.")); |
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349 | exit (EXIT_FAILURE); |
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350 | } |
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351 | |
279 | tap_ev_watcher.start (tap->fd, EVENT_READ); |
352 | tap_ev_watcher.start (tap->fd, EV_READ); |
280 | |
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281 | reconnect_all (); |
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282 | |
353 | |
283 | return 0; |
354 | return 0; |
284 | } |
355 | } |
285 | |
356 | |
286 | bool |
357 | bool |
287 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
358 | vpn::send_ipv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
288 | { |
359 | { |
289 | #if defined(SOL_IP) && defined(IP_TOS) |
360 | set_tos (ipv4_fd, ipv4_tos, tos); |
290 | setsockopt (ipv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
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291 | #endif |
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292 | sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
361 | sendto (ipv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
293 | |
362 | |
294 | return true; |
363 | return true; |
295 | } |
364 | } |
296 | |
365 | |
… | |
… | |
319 | |
388 | |
320 | #if ENABLE_ICMP |
389 | #if ENABLE_ICMP |
321 | bool |
390 | bool |
322 | vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
391 | vpn::send_icmpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
323 | { |
392 | { |
324 | #if defined(SOL_IP) && defined(IP_TOS) |
|
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325 | setsockopt (icmpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
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326 | #endif |
|
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327 | |
|
|
328 | pkt->unshift_hdr (4); |
393 | pkt->unshift_hdr (4); |
329 | |
394 | |
330 | icmp_header *hdr = (icmp_header *)&((*pkt)[0]); |
395 | icmp_header *hdr = (icmp_header *)&((*pkt)[0]); |
331 | hdr->type = ::conf.icmp_type; |
396 | hdr->type = ::conf.icmp_type; |
332 | hdr->code = 255; |
397 | hdr->code = 255; |
333 | hdr->checksum = 0; |
398 | hdr->checksum = 0; |
334 | hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len); |
399 | hdr->checksum = ipv4_checksum ((u16 *)hdr, pkt->len); |
335 | |
400 | |
|
|
401 | set_tos (icmpv4_fd, icmpv4_tos, tos); |
336 | sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
402 | sendto (icmpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
337 | |
403 | |
338 | return true; |
404 | return true; |
339 | } |
405 | } |
340 | #endif |
406 | #endif |
341 | |
407 | |
342 | bool |
408 | bool |
343 | vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
409 | vpn::send_udpv4_packet (vpn_packet *pkt, const sockinfo &si, int tos) |
344 | { |
410 | { |
345 | #if defined(SOL_IP) && defined(IP_TOS) |
411 | set_tos (udpv4_fd, udpv4_tos, tos); |
346 | setsockopt (udpv4_fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
|
347 | #endif |
|
|
348 | sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
412 | sendto (udpv4_fd, &((*pkt)[0]), pkt->len, 0, si.sav4 (), si.salenv4 ()); |
349 | |
413 | |
350 | return true; |
414 | return true; |
351 | } |
415 | } |
352 | |
416 | |
… | |
… | |
414 | { |
478 | { |
415 | switch (si.prot) |
479 | switch (si.prot) |
416 | { |
480 | { |
417 | case PROT_IPv4: |
481 | case PROT_IPv4: |
418 | return send_ipv4_packet (pkt, si, tos); |
482 | return send_ipv4_packet (pkt, si, tos); |
|
|
483 | |
419 | case PROT_UDPv4: |
484 | case PROT_UDPv4: |
420 | return send_udpv4_packet (pkt, si, tos); |
485 | return send_udpv4_packet (pkt, si, tos); |
|
|
486 | |
421 | #if ENABLE_TCP |
487 | #if ENABLE_TCP |
422 | case PROT_TCPv4: |
488 | case PROT_TCPv4: |
423 | return send_tcpv4_packet (pkt, si, tos); |
489 | return send_tcpv4_packet (pkt, si, tos); |
424 | #endif |
490 | #endif |
425 | #if ENABLE_ICMP |
491 | #if ENABLE_ICMP |
… | |
… | |
428 | #endif |
494 | #endif |
429 | #if ENABLE_DNS |
495 | #if ENABLE_DNS |
430 | case PROT_DNSv4: |
496 | case PROT_DNSv4: |
431 | return send_dnsv4_packet (pkt, si, tos); |
497 | return send_dnsv4_packet (pkt, si, tos); |
432 | #endif |
498 | #endif |
433 | |
|
|
434 | default: |
499 | default: |
435 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si); |
500 | slog (L_CRIT, _("%s: FATAL: trying to send packet with unsupported protocol"), (const char *)si); |
436 | } |
501 | } |
437 | |
502 | |
438 | return false; |
503 | return false; |
439 | } |
504 | } |
440 | |
505 | |
441 | void |
506 | void |
442 | vpn::ipv4_ev (io_watcher &w, short revents) |
507 | vpn::ipv4_ev (ev::io &w, int revents) |
443 | { |
508 | { |
444 | if (revents & EVENT_READ) |
509 | if (revents & EV_READ) |
445 | { |
510 | { |
446 | vpn_packet *pkt = new vpn_packet; |
511 | vpn_packet *pkt = new vpn_packet; |
447 | struct sockaddr_in sa; |
512 | struct sockaddr_in sa; |
448 | socklen_t sa_len = sizeof (sa); |
513 | socklen_t sa_len = sizeof (sa); |
449 | int len; |
514 | int len; |
… | |
… | |
478 | } |
543 | } |
479 | } |
544 | } |
480 | |
545 | |
481 | #if ENABLE_ICMP |
546 | #if ENABLE_ICMP |
482 | void |
547 | void |
483 | vpn::icmpv4_ev (io_watcher &w, short revents) |
548 | vpn::icmpv4_ev (ev::io &w, int revents) |
484 | { |
549 | { |
485 | if (revents & EVENT_READ) |
550 | if (revents & EV_READ) |
486 | { |
551 | { |
487 | vpn_packet *pkt = new vpn_packet; |
552 | vpn_packet *pkt = new vpn_packet; |
488 | struct sockaddr_in sa; |
553 | struct sockaddr_in sa; |
489 | socklen_t sa_len = sizeof (sa); |
554 | socklen_t sa_len = sizeof (sa); |
490 | int len; |
555 | int len; |
… | |
… | |
526 | } |
591 | } |
527 | } |
592 | } |
528 | #endif |
593 | #endif |
529 | |
594 | |
530 | void |
595 | void |
531 | vpn::udpv4_ev (io_watcher &w, short revents) |
596 | vpn::udpv4_ev (ev::io &w, int revents) |
532 | { |
597 | { |
533 | if (revents & EVENT_READ) |
598 | if (revents & EV_READ) |
534 | { |
599 | { |
535 | vpn_packet *pkt = new vpn_packet; |
600 | vpn_packet *pkt = new vpn_packet; |
536 | struct sockaddr_in sa; |
601 | struct sockaddr_in sa; |
537 | socklen_t sa_len = sizeof (sa); |
602 | socklen_t sa_len = sizeof (sa); |
538 | int len; |
603 | int len; |
… | |
… | |
563 | exit (EXIT_FAILURE); |
628 | exit (EXIT_FAILURE); |
564 | } |
629 | } |
565 | } |
630 | } |
566 | |
631 | |
567 | void |
632 | void |
568 | vpn::tap_ev (io_watcher &w, short revents) |
633 | vpn::tap_ev (ev::io &w, int revents) |
569 | { |
634 | { |
570 | if (revents & EVENT_READ) |
635 | if (revents & EV_READ) |
571 | { |
636 | { |
572 | /* process data */ |
637 | /* process data */ |
573 | tap_packet *pkt; |
638 | tap_packet *pkt; |
574 | |
639 | |
575 | pkt = tap->recv (); |
640 | pkt = tap->recv (); |
… | |
… | |
605 | else |
670 | else |
606 | abort (); |
671 | abort (); |
607 | } |
672 | } |
608 | |
673 | |
609 | void |
674 | void |
610 | vpn::event_cb (time_watcher &w) |
675 | vpn::event_cb (ev::timer &w, int) |
611 | { |
676 | { |
612 | if (events) |
677 | if (events) |
613 | { |
678 | { |
614 | if (events & EVENT_SHUTDOWN) |
679 | if (events & EVENT_SHUTDOWN) |
615 | { |
680 | { |
… | |
… | |
706 | } |
771 | } |
707 | |
772 | |
708 | void |
773 | void |
709 | vpn::dump_status () |
774 | vpn::dump_status () |
710 | { |
775 | { |
711 | slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)NOW); |
776 | slog (L_NOTICE, _("BEGIN status dump (%ld)"), (long)ev_now ()); |
712 | |
777 | |
713 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
778 | for (conns_vector::iterator c = conns.begin (); c != conns.end (); ++c) |
714 | (*c)->dump_status (); |
779 | (*c)->dump_status (); |
715 | |
780 | |
716 | slog (L_NOTICE, _("END status dump")); |
781 | slog (L_NOTICE, _("END status dump")); |
717 | } |
782 | } |
718 | |
783 | |
719 | vpn::vpn (void) |
784 | vpn::vpn (void) |
|
|
785 | { |
720 | : event (this, &vpn::event_cb) |
786 | event .set<vpn, &vpn::event_cb > (this); |
721 | , udpv4_ev_watcher (this, &vpn::udpv4_ev) |
787 | udpv4_ev_watcher .set<vpn, &vpn::udpv4_ev > (this); |
722 | , ipv4_ev_watcher (this, &vpn::ipv4_ev) |
788 | ipv4_ev_watcher .set<vpn, &vpn::ipv4_ev > (this); |
723 | #if ENABLE_TCP |
789 | #if ENABLE_TCP |
724 | , tcpv4_ev_watcher (this, &vpn::tcpv4_ev) |
790 | tcpv4_ev_watcher .set<vpn, &vpn::tcpv4_ev > (this); |
725 | #endif |
791 | #endif |
726 | #if ENABLE_ICMP |
792 | #if ENABLE_ICMP |
727 | , icmpv4_ev_watcher(this, &vpn::icmpv4_ev) |
793 | icmpv4_ev_watcher.set<vpn, &vpn::icmpv4_ev> (this); |
728 | #endif |
794 | #endif |
729 | #if ENABLE_DNS |
795 | #if ENABLE_DNS |
730 | , dnsv4_ev_watcher (this, &vpn::dnsv4_ev) |
796 | dnsv4_ev_watcher .set<vpn, &vpn::dnsv4_ev > (this); |
731 | #endif |
797 | #endif |
732 | , tap_ev_watcher (this, &vpn::tap_ev) |
798 | tap_ev_watcher .set<vpn, &vpn::tap_ev > (this); |
733 | { |
|
|
734 | } |
799 | } |
735 | |
800 | |
736 | vpn::~vpn () |
801 | vpn::~vpn () |
737 | { |
802 | { |
738 | } |
803 | } |