1 | /* |
1 | /* |
2 | vpn_tcp.C -- handle the tcp part of the protocol. |
2 | vpn_tcp.C -- handle the tcp part of the protocol. |
|
|
3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
3 | |
4 | |
|
|
5 | This file is part of GVPE. |
|
|
6 | |
4 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify |
5 | 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 |
6 | the Free Software Foundation; either version 2 of the License, or |
9 | the Free Software Foundation; either version 2 of the License, or |
7 | (at your option) any later version. |
10 | (at your option) any later version. |
8 | |
11 | |
9 | This program is distributed in the hope that it will be useful, |
12 | This program is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
13 | |
16 | |
14 | 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 |
15 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
16 | 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 |
17 | */ |
20 | */ |
18 | |
21 | |
19 | #include "config.h" |
22 | #include "config.h" |
20 | |
23 | |
21 | #if ENABLE_TCP |
24 | #if ENABLE_TCP |
… | |
… | |
27 | |
30 | |
28 | #include <cstring> |
31 | #include <cstring> |
29 | |
32 | |
30 | #include <sys/types.h> |
33 | #include <sys/types.h> |
31 | #include <sys/socket.h> |
34 | #include <sys/socket.h> |
32 | #include <sys/poll.h> |
|
|
33 | #include <sys/wait.h> |
35 | #include <sys/wait.h> |
34 | #include <netinet/in.h> |
|
|
35 | #include <sys/uio.h> |
36 | #include <sys/uio.h> |
36 | #include <arpa/inet.h> |
|
|
37 | #include <errno.h> |
37 | #include <errno.h> |
38 | #include <time.h> |
38 | #include <time.h> |
39 | #include <unistd.h> |
39 | #include <unistd.h> |
|
|
40 | #include <fcntl.h> |
40 | |
41 | |
41 | #include <map> |
42 | #include <map> |
42 | #include <unistd.h> |
43 | |
43 | #include <fcntl.h> |
44 | #include "netcompat.h" |
44 | #include <sys/poll.h> |
|
|
45 | |
45 | |
46 | #include "vpn.h" |
46 | #include "vpn.h" |
|
|
47 | |
|
|
48 | #if ENABLE_HTTP_PROXY |
|
|
49 | # include "conf.h" |
|
|
50 | #endif |
47 | |
51 | |
48 | struct tcp_connection; |
52 | struct tcp_connection; |
49 | |
53 | |
50 | struct lt_sockinfo |
54 | struct lt_sockinfo |
51 | { |
55 | { |
… | |
… | |
54 | return *a < *b; |
58 | return *a < *b; |
55 | } |
59 | } |
56 | }; |
60 | }; |
57 | |
61 | |
58 | struct tcp_si_map : public map<const sockinfo *, tcp_connection *, lt_sockinfo> { |
62 | struct tcp_si_map : public map<const sockinfo *, tcp_connection *, lt_sockinfo> { |
59 | void cleaner_cb (time_watcher &w); time_watcher cleaner; |
63 | void cleaner_cb (ev::timer &w, int revents); ev::timer cleaner; |
60 | |
64 | |
61 | tcp_si_map () |
65 | tcp_si_map () |
62 | : cleaner(this, &tcp_si_map::cleaner_cb) |
66 | : cleaner(this, &tcp_si_map::cleaner_cb) |
63 | { |
67 | { |
64 | cleaner.start (0); |
68 | cleaner.start (300, 300); |
65 | } |
69 | } |
|
|
70 | |
66 | } tcp_si; |
71 | } tcp_si; |
67 | |
72 | |
68 | struct tcp_connection : io_watcher { |
73 | struct tcp_connection : ev::io { |
69 | tstamp last_activity; |
74 | tstamp last_activity; |
70 | const sockinfo si; |
75 | const sockinfo si; |
71 | vpn &v; |
76 | vpn &v; |
72 | bool active; // this connection has been actively established |
77 | bool active; // this connection has been actively established |
73 | enum { ERROR, IDLE, CONNECTING, ESTABLISHED } state; |
78 | enum { ERROR, IDLE, CONNECTING, CONNECTING_PROXY, ESTABLISHED } state; |
74 | |
79 | |
75 | vpn_packet *r_pkt; |
80 | vpn_packet *r_pkt; |
76 | u32 r_len, r_ofs; |
81 | u32 r_len, r_ofs; |
77 | |
82 | |
78 | vpn_packet *w_pkt; |
83 | vpn_packet *w_pkt; |
79 | u32 w_len, w_ofs; |
84 | u32 w_len, w_ofs; |
80 | |
85 | |
|
|
86 | #if ENABLE_HTTP_PROXY |
|
|
87 | char *proxy_req; |
|
|
88 | int proxy_req_len; |
|
|
89 | #endif |
|
|
90 | |
81 | void tcpv4_ev (io_watcher &w, short revents); |
91 | void tcpv4_ev (ev::io &w, int revents); |
82 | |
92 | |
83 | bool send_packet (vpn_packet *pkt, int tos); |
93 | bool send_packet (vpn_packet *pkt, int tos); |
84 | bool write_packet (); |
94 | bool write_packet (); |
85 | |
95 | |
86 | void error (); // abort conenction && cleanup |
96 | void error (); // abort conenction && cleanup |
87 | |
97 | |
88 | operator tcp_si_map::value_type() |
98 | operator tcp_si_map::value_type() |
89 | { |
99 | { |
90 | return tcp_si_map::value_type (&si, this); |
100 | return tcp_si_map::value_type (&si, this); |
91 | } |
101 | } |
92 | |
102 | |
93 | tcp_connection (int fd_, const sockinfo &si_, vpn &v_); |
103 | tcp_connection (int fd_, const sockinfo &si_, vpn &v_); |
94 | ~tcp_connection (); |
104 | ~tcp_connection (); |
95 | }; |
105 | }; |
96 | |
106 | |
97 | void tcp_si_map::cleaner_cb (time_watcher &w) |
107 | void tcp_si_map::cleaner_cb (ev::timer &w, int revents) |
98 | { |
108 | { |
99 | w.at = NOW + 600; |
|
|
100 | tstamp to = NOW - ::conf.keepalive - 30 - 60; |
109 | tstamp to = ev::ev_now () - ::conf.keepalive - 30 - 60; |
101 | |
110 | |
102 | for (iterator i = begin (); i != end(); ) |
111 | for (iterator i = begin (); i != end(); ) |
103 | if (i->second->last_activity >= to) |
112 | if (i->second->last_activity >= to) |
104 | ++i; |
113 | ++i; |
105 | else |
114 | else |
… | |
… | |
108 | i = begin (); |
117 | i = begin (); |
109 | } |
118 | } |
110 | } |
119 | } |
111 | |
120 | |
112 | void |
121 | void |
113 | vpn::tcpv4_ev (io_watcher &w, short revents) |
122 | vpn::tcpv4_ev (ev::io &w, int revents) |
114 | { |
123 | { |
115 | if (revents & (POLLIN | POLLERR)) |
124 | if (revents & EV_READ) |
116 | { |
125 | { |
117 | struct sockaddr_in sa; |
126 | struct sockaddr_in sa; |
118 | socklen_t sa_len = sizeof (sa); |
127 | socklen_t sa_len = sizeof (sa); |
119 | int len; |
128 | int len; |
120 | |
129 | |
121 | int fd = accept (w.fd, (sockaddr *)&sa, &sa_len); |
130 | int fd = accept (w.fd, (sockaddr *)&sa, &sa_len); |
122 | |
131 | |
123 | if (fd >= 0) |
132 | if (fd >= 0) |
124 | { |
133 | { |
|
|
134 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
135 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
136 | |
125 | sockinfo si(sa, PROT_TCPv4); |
137 | sockinfo si(sa, PROT_TCPv4); |
126 | |
138 | |
127 | slog (L_DEBUG, _("%s: accepted tcp connection"), (const char *)si);//D |
139 | slog (L_DEBUG, _("%s: accepted tcp connection"), (const char *)si);//D |
128 | |
|
|
129 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
130 | |
140 | |
131 | tcp_connection *i = new tcp_connection (fd, si, *this); |
141 | tcp_connection *i = new tcp_connection (fd, si, *this); |
132 | tcp_si.insert (*i); |
142 | tcp_si.insert (*i); |
133 | } |
143 | } |
134 | } |
144 | } |
… | |
… | |
150 | i = info->second; |
160 | i = info->second; |
151 | |
161 | |
152 | return i->send_packet (pkt, tos); |
162 | return i->send_packet (pkt, tos); |
153 | } |
163 | } |
154 | |
164 | |
155 | void tcp_connection::error () |
|
|
156 | { |
|
|
157 | if (fd >= 0) |
|
|
158 | { |
|
|
159 | close (fd); |
|
|
160 | fd = -1; |
|
|
161 | } |
|
|
162 | |
|
|
163 | delete r_pkt; r_pkt = 0; |
|
|
164 | delete w_pkt; w_pkt = 0; |
|
|
165 | |
|
|
166 | stop (); |
|
|
167 | state = active ? IDLE : ERROR; |
|
|
168 | } |
|
|
169 | |
|
|
170 | bool |
165 | bool |
171 | tcp_connection::write_packet () |
166 | tcp_connection::write_packet () |
172 | { |
167 | { |
173 | ssize_t len; |
168 | ssize_t len; |
174 | |
169 | |
175 | if (w_ofs < 2) |
170 | if (w_ofs < 2) |
176 | { |
171 | { |
177 | u16 plen = htons (w_pkt->len); |
172 | u16 plen = htons (w_pkt->len); |
178 | |
173 | |
179 | iovec vec[2]; |
174 | iovec vec[2]; |
|
|
175 | //TODO: char* is the right type? hardly... |
180 | vec[0].iov_base = ((u8 *)&plen) + w_ofs; |
176 | vec[0].iov_base = (char *)((u8 *)&plen) + w_ofs; |
181 | vec[0].iov_len = 2 - w_ofs; |
177 | vec[0].iov_len = 2 - w_ofs; |
182 | vec[1].iov_base = &((*w_pkt)[0]); |
178 | vec[1].iov_base = (char *)&((*w_pkt)[0]); |
183 | vec[1].iov_len = w_len - 2; |
179 | vec[1].iov_len = w_len - 2; |
184 | |
180 | |
185 | len = writev (fd, vec, 2); |
181 | len = writev (fd, vec, 2); |
186 | } |
182 | } |
187 | else |
183 | else |
… | |
… | |
202 | return false; |
198 | return false; |
203 | } |
199 | } |
204 | } |
200 | } |
205 | |
201 | |
206 | void |
202 | void |
207 | tcp_connection::tcpv4_ev (io_watcher &w, short revents) |
203 | tcp_connection::tcpv4_ev (ev::io &w, int revents) |
208 | { |
204 | { |
209 | last_activity = NOW; |
205 | last_activity = ev::ev_now (); |
210 | |
206 | |
211 | if (revents & (POLLERR | POLLHUP)) |
207 | if (revents & EV_WRITE) |
212 | { |
|
|
213 | error (); |
|
|
214 | return; |
|
|
215 | } |
|
|
216 | |
|
|
217 | if (revents & POLLOUT) |
|
|
218 | { |
208 | { |
219 | if (state == CONNECTING) |
209 | if (state == CONNECTING) |
220 | { |
210 | { |
221 | state = ESTABLISHED; |
211 | state = ESTABLISHED; |
222 | set (POLLIN); |
212 | set (EV_READ); |
|
|
213 | #if ENABLE_HTTP_PROXY |
|
|
214 | if (::conf.proxy_host && ::conf.proxy_port) |
|
|
215 | { |
|
|
216 | state = CONNECTING_PROXY; |
|
|
217 | |
|
|
218 | if (write (fd, proxy_req, proxy_req_len) == 0) |
|
|
219 | { |
|
|
220 | error (); |
|
|
221 | return; |
|
|
222 | } |
|
|
223 | |
|
|
224 | free (proxy_req); proxy_req = 0; |
|
|
225 | } |
|
|
226 | #endif |
223 | } |
227 | } |
224 | else if (state == ESTABLISHED) |
228 | else if (state == ESTABLISHED) |
225 | { |
229 | { |
226 | if (w_pkt) |
230 | if (w_pkt) |
227 | { |
231 | { |
228 | if (write_packet ()) |
232 | if (write_packet ()) |
229 | { |
233 | { |
230 | delete w_pkt; w_pkt = 0; |
234 | delete w_pkt; w_pkt = 0; |
231 | |
235 | |
232 | set (POLLIN); |
236 | set (EV_READ); |
233 | } |
237 | } |
234 | } |
238 | } |
235 | else |
239 | else |
236 | set (POLLIN); |
240 | set (EV_READ); |
237 | } |
241 | } |
238 | else |
242 | else |
239 | set (POLLIN); |
243 | set (EV_READ); |
240 | } |
|
|
241 | |
|
|
242 | if (revents & POLLIN) |
|
|
243 | { |
244 | } |
|
|
245 | |
|
|
246 | if (revents & EV_READ) |
|
|
247 | { |
|
|
248 | if (state == ESTABLISHED) |
244 | for (;;) |
249 | for (;;) |
245 | { |
250 | { |
246 | if (!r_pkt) |
251 | if (!r_pkt) |
247 | { |
252 | { |
248 | r_pkt = new vpn_packet; |
253 | r_pkt = new vpn_packet; |
249 | r_ofs = 0; |
254 | r_ofs = 0; |
250 | r_len = 2; // header |
255 | r_len = 2; // header |
251 | } |
256 | } |
252 | |
257 | |
253 | ssize_t len = read (fd, &((*r_pkt)[r_ofs < 2 ? r_ofs : r_ofs - 2]), r_len); |
258 | ssize_t len = read (fd, &((*r_pkt)[r_ofs < 2 ? r_ofs : r_ofs - 2]), r_len); |
254 | |
259 | |
255 | if (len > 0) |
260 | if (len > 0) |
256 | { |
261 | { |
257 | r_len -= len; |
262 | r_len -= len; |
258 | r_ofs += len; |
263 | r_ofs += len; |
259 | |
264 | |
260 | if (r_len == 0) |
265 | if (r_len == 0) |
|
|
266 | { |
|
|
267 | if (r_ofs == 2) |
|
|
268 | { |
|
|
269 | r_len = ntohs (*(u16 *)&((*r_pkt)[0])); |
|
|
270 | r_pkt->len = r_len; |
|
|
271 | |
|
|
272 | if (r_len > 0 && r_len < MAXSIZE) |
|
|
273 | continue; |
|
|
274 | } |
|
|
275 | else |
|
|
276 | { |
|
|
277 | v.recv_vpn_packet (r_pkt, si); |
|
|
278 | delete r_pkt; |
|
|
279 | r_pkt = 0; |
|
|
280 | |
|
|
281 | continue; |
|
|
282 | } |
|
|
283 | } |
|
|
284 | else |
|
|
285 | break; |
|
|
286 | } |
|
|
287 | else if (len < 0 && (errno == EINTR || errno == EAGAIN)) |
|
|
288 | break; |
|
|
289 | |
|
|
290 | // len == 0 <-> EOF |
|
|
291 | error (); |
|
|
292 | break; |
|
|
293 | } |
|
|
294 | #if ENABLE_HTTP_PROXY |
|
|
295 | else if (state == CONNECTING_PROXY) |
|
|
296 | { |
|
|
297 | fcntl (fd, F_SETFL, 0); |
|
|
298 | char r[1024]; |
|
|
299 | int i; |
|
|
300 | bool emptyline = false; |
|
|
301 | |
|
|
302 | // we do a blocking read of the response, to hell with it |
|
|
303 | for (i = 0; i < 1023; i++) |
|
|
304 | { |
|
|
305 | int l = read (fd, &r[i], 1); |
|
|
306 | |
|
|
307 | if (l <= 0) |
261 | { |
308 | { |
262 | if (r_ofs == 2) |
309 | error (); |
263 | { |
310 | return; |
264 | r_len = ntohs (*(u16 *)&((*r_pkt)[0])); |
|
|
265 | r_pkt->len = r_len; |
|
|
266 | |
|
|
267 | if (r_len > 0 && r_len < MAXSIZE) |
|
|
268 | continue; |
|
|
269 | } |
311 | } |
|
|
312 | |
|
|
313 | if (r[i] == '\012') |
|
|
314 | { |
|
|
315 | if (emptyline) |
|
|
316 | break; |
270 | else |
317 | else |
271 | { |
|
|
272 | v.recv_vpn_packet (r_pkt, si); |
|
|
273 | delete r_pkt; |
|
|
274 | r_pkt = 0; |
|
|
275 | |
|
|
276 | continue; |
318 | emptyline = true; |
277 | } |
319 | } |
|
|
320 | else if (r[i] != '\015') |
|
|
321 | emptyline = false; |
|
|
322 | } |
|
|
323 | |
|
|
324 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
325 | |
|
|
326 | if (i < 12) |
|
|
327 | { |
|
|
328 | slog (L_ERR, _("(%s): unable to do proxy-forwarding, short response"), |
|
|
329 | (const char *)si); |
|
|
330 | error (); |
|
|
331 | } |
|
|
332 | else if (r[0] != 'H' || r[1] != 'T' || r[2] != 'T' || r[3] != 'P' || r[4] != '/' |
|
|
333 | || r[5] != '1' // http-major |
|
|
334 | || r[9] != '2') // response |
|
|
335 | { |
|
|
336 | slog (L_ERR, _("(%s): malformed or unexpected proxy response (%.12s)"), |
|
|
337 | (const char *)si, r); |
|
|
338 | error (); |
|
|
339 | } |
|
|
340 | else |
|
|
341 | state = ESTABLISHED; |
|
|
342 | } |
|
|
343 | #endif |
|
|
344 | } |
|
|
345 | } |
|
|
346 | |
|
|
347 | bool |
|
|
348 | tcp_connection::send_packet (vpn_packet *pkt, int tos) |
|
|
349 | { |
|
|
350 | last_activity = ev::ev_now (); |
|
|
351 | |
|
|
352 | if (state == IDLE) |
|
|
353 | { |
|
|
354 | // woaw, the first lost packet ;) |
|
|
355 | fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP); |
|
|
356 | |
|
|
357 | if (fd >= 0) |
|
|
358 | { |
|
|
359 | const sockinfo *csi = &si; |
|
|
360 | |
|
|
361 | #if ENABLE_HTTP_PROXY |
|
|
362 | sockinfo psi; |
|
|
363 | |
|
|
364 | if (::conf.proxy_host && ::conf.proxy_port) |
|
|
365 | { |
|
|
366 | psi.set (::conf.proxy_host, ::conf.proxy_port, PROT_TCPv4); |
|
|
367 | |
|
|
368 | if (psi.valid ()) |
|
|
369 | { |
|
|
370 | csi = ψ |
|
|
371 | |
|
|
372 | proxy_req_len = asprintf (&proxy_req, |
|
|
373 | "CONNECT %s:%d HTTP/1.0\015\012" |
|
|
374 | "%s%s%s" // optional proxy-auth |
|
|
375 | "\015\012", |
|
|
376 | si.ntoa (), |
|
|
377 | ntohs (si.port), |
|
|
378 | ::conf.proxy_auth ? "Proxy-Authorization: Basic " : "", |
|
|
379 | ::conf.proxy_auth ? ::conf.proxy_auth : "", |
|
|
380 | ::conf.proxy_auth ? "\015\012" : ""); |
|
|
381 | |
278 | } |
382 | } |
279 | else |
383 | else |
280 | break; |
384 | slog (L_ERR, _("unable to resolve http proxy hostname '%s', trying direct"), |
|
|
385 | ::conf.proxy_host); |
|
|
386 | } |
|
|
387 | #endif |
281 | } |
388 | |
282 | else if (len < 0 && (errno == EINTR || errno == EAGAIN)) |
|
|
283 | break; |
|
|
284 | |
|
|
285 | error (); |
|
|
286 | break; |
|
|
287 | } |
|
|
288 | } |
|
|
289 | } |
|
|
290 | |
|
|
291 | bool |
|
|
292 | tcp_connection::send_packet (vpn_packet *pkt, int tos) |
|
|
293 | { |
|
|
294 | last_activity = NOW; |
|
|
295 | |
|
|
296 | if (state == IDLE) |
|
|
297 | { |
|
|
298 | // woaw, the first lost packet ;) |
|
|
299 | fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP); |
|
|
300 | |
|
|
301 | if (fd >= 0) |
|
|
302 | { |
|
|
303 | fcntl (fd, F_SETFL, O_NONBLOCK); |
389 | fcntl (fd, F_SETFL, O_NONBLOCK); |
304 | |
390 | |
305 | if (connect (fd, si.sav4 (), si.salenv4 ()) >= 0 |
391 | if (connect (fd, csi->sav4 (), csi->salenv4 ()) >= 0 |
306 | || errno == EINPROGRESS) |
392 | || errno == EINPROGRESS) |
307 | { |
393 | { |
|
|
394 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
395 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
396 | |
308 | state = CONNECTING; |
397 | state = CONNECTING; |
309 | start (fd, POLLOUT); |
398 | start (fd, EV_WRITE); |
310 | } |
399 | } |
311 | else |
400 | else |
312 | close (fd); |
401 | close (fd); |
313 | } |
402 | } |
314 | } |
403 | } |
… | |
… | |
318 | // right thing to do, not using tcp *is* the right thing to do. |
407 | // right thing to do, not using tcp *is* the right thing to do. |
319 | if (!w_pkt) |
408 | if (!w_pkt) |
320 | { |
409 | { |
321 | // how this maps to the underlying tcp packets we don't know |
410 | // how this maps to the underlying tcp packets we don't know |
322 | // and we don't care. at least we tried ;) |
411 | // and we don't care. at least we tried ;) |
|
|
412 | #if defined(SOL_IP) && defined(IP_TOS) |
323 | setsockopt (fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
413 | setsockopt (fd, SOL_IP, IP_TOS, &tos, sizeof tos); |
|
|
414 | #endif |
324 | |
415 | |
325 | w_pkt = pkt; |
416 | w_pkt = pkt; |
326 | w_ofs = 0; |
417 | w_ofs = 0; |
327 | w_len = pkt->len + 2; // length + size header |
418 | w_len = pkt->len + 2; // length + size header |
328 | |
419 | |
… | |
… | |
331 | else |
422 | else |
332 | { |
423 | { |
333 | w_pkt = new vpn_packet; |
424 | w_pkt = new vpn_packet; |
334 | w_pkt->set (*pkt); |
425 | w_pkt->set (*pkt); |
335 | |
426 | |
336 | set (POLLIN | POLLOUT); |
427 | set (EV_READ | EV_WRITE); |
337 | } |
428 | } |
338 | } |
429 | } |
339 | } |
430 | } |
340 | |
431 | |
341 | return state != ERROR; |
432 | return state != ERROR; |
342 | } |
433 | } |
343 | |
434 | |
|
|
435 | void tcp_connection::error () |
|
|
436 | { |
|
|
437 | if (fd >= 0) |
|
|
438 | { |
|
|
439 | close (fd); |
|
|
440 | fd = -1; |
|
|
441 | } |
|
|
442 | |
|
|
443 | delete r_pkt; r_pkt = 0; |
|
|
444 | delete w_pkt; w_pkt = 0; |
|
|
445 | #if ENABLE_HTTP_PROXY |
|
|
446 | free (proxy_req); proxy_req = 0; |
|
|
447 | #endif |
|
|
448 | |
|
|
449 | stop (); |
|
|
450 | state = active ? IDLE : ERROR; |
|
|
451 | } |
|
|
452 | |
344 | tcp_connection::tcp_connection (int fd_, const sockinfo &si_, vpn &v_) |
453 | tcp_connection::tcp_connection (int fd_, const sockinfo &si_, vpn &v_) |
345 | : v(v_), si(si_), io_watcher(this, &tcp_connection::tcpv4_ev) |
454 | : v(v_), si(si_), ev::io(this, &tcp_connection::tcpv4_ev) |
346 | { |
455 | { |
347 | last_activity = NOW; |
456 | if (!tcp_si.cleaner.active) |
|
|
457 | tcp_si.cleaner.start (0); |
|
|
458 | |
|
|
459 | last_activity = ev::ev_now (); |
348 | r_pkt = 0; |
460 | r_pkt = 0; |
349 | w_pkt = 0; |
461 | w_pkt = 0; |
350 | fd = fd_; |
462 | fd = fd_; |
|
|
463 | #if ENABLE_HTTP_PROXY |
|
|
464 | proxy_req = 0; |
|
|
465 | #endif |
351 | |
466 | |
352 | if (fd < 0) |
467 | if (fd < 0) |
353 | { |
468 | { |
354 | active = true; |
469 | active = true; |
355 | state = IDLE; |
470 | state = IDLE; |
356 | } |
471 | } |
357 | else |
472 | else |
358 | { |
473 | { |
359 | active = false; |
474 | active = false; |
360 | state = ESTABLISHED; |
475 | state = ESTABLISHED; |
361 | start (fd, POLLIN); |
476 | start (fd, EV_READ); |
362 | } |
477 | } |
363 | } |
478 | } |
364 | |
479 | |
365 | tcp_connection::~tcp_connection () |
480 | tcp_connection::~tcp_connection () |
366 | { |
481 | { |