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Diffstat (limited to 'src/transport/plugin_transport_http.h')
-rw-r--r-- | src/transport/plugin_transport_http.h | 579 |
1 files changed, 0 insertions, 579 deletions
diff --git a/src/transport/plugin_transport_http.h b/src/transport/plugin_transport_http.h deleted file mode 100644 index a3b59513e..000000000 --- a/src/transport/plugin_transport_http.h +++ /dev/null | |||
@@ -1,579 +0,0 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file transport/plugin_transport_http.h | ||
23 | * @brief http transport service plugin | ||
24 | * @author Matthias Wachs | ||
25 | */ | ||
26 | #ifndef PLUGIN_TRANSPORT_HTTP_H | ||
27 | #define PLUGIN_TRANSPORT_HTTP_H | ||
28 | |||
29 | #include "platform.h" | ||
30 | #include "gnunet_common.h" | ||
31 | #include "gnunet_constants.h" | ||
32 | #include "gnunet_protocols.h" | ||
33 | #include "gnunet_connection_lib.h" | ||
34 | #include "gnunet_service_lib.h" | ||
35 | #include "gnunet_statistics_service.h" | ||
36 | #include "gnunet_transport_service.h" | ||
37 | #include "gnunet_resolver_service.h" | ||
38 | #include "gnunet_server_lib.h" | ||
39 | #include "gnunet_container_lib.h" | ||
40 | #include "gnunet_transport_plugin.h" | ||
41 | #include "gnunet_os_lib.h" | ||
42 | #include "gnunet_nat_lib.h" | ||
43 | #include "microhttpd.h" | ||
44 | /* Just included for the right curl.h */ | ||
45 | #include "gnunet_curl_lib.h" | ||
46 | |||
47 | |||
48 | #define DEBUG_HTTP GNUNET_EXTRA_LOGGING | ||
49 | #define VERBOSE_SERVER GNUNET_EXTRA_LOGGING | ||
50 | #define VERBOSE_CLIENT GNUNET_EXTRA_LOGGING | ||
51 | #define VERBOSE_CURL GNUNET_NO | ||
52 | |||
53 | #if BUILD_HTTPS | ||
54 | #define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_https_init | ||
55 | #define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_https_done | ||
56 | #else | ||
57 | #define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_http_init | ||
58 | #define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_http_done | ||
59 | #endif | ||
60 | |||
61 | #define INBOUND GNUNET_YES | ||
62 | #define OUTBOUND GNUNET_NO | ||
63 | |||
64 | |||
65 | #define HTTP_NOT_VALIDATED_TIMEOUT GNUNET_TIME_relative_multiply ( \ | ||
66 | GNUNET_TIME_UNIT_SECONDS, 15) | ||
67 | |||
68 | /** | ||
69 | * Encapsulation of all of the state of the plugin. | ||
70 | */ | ||
71 | struct Plugin | ||
72 | { | ||
73 | /** | ||
74 | * Our environment. | ||
75 | */ | ||
76 | struct GNUNET_TRANSPORT_PluginEnvironment *env; | ||
77 | |||
78 | /** | ||
79 | * Head of linked list of open sessions. | ||
80 | */ | ||
81 | struct GNUNET_ATS_Session *head; | ||
82 | |||
83 | /** | ||
84 | * Tail of linked list of open sessions. | ||
85 | */ | ||
86 | struct GNUNET_ATS_Session *tail; | ||
87 | |||
88 | /** | ||
89 | * NAT handle & address management | ||
90 | */ | ||
91 | struct GNUNET_NAT_Handle *nat; | ||
92 | |||
93 | /** | ||
94 | * Our own IPv4 addresses DLL head | ||
95 | */ | ||
96 | struct HttpAddressWrapper *addr_head; | ||
97 | |||
98 | /** | ||
99 | * Our own IPv4 addresses DLL tail | ||
100 | */ | ||
101 | struct HttpAddressWrapper *addr_tail; | ||
102 | |||
103 | /** | ||
104 | * External hostname the plugin can be connected to, can be different to | ||
105 | * the host's FQDN, used e.g. for reverse proxying | ||
106 | */ | ||
107 | char *external_hostname; | ||
108 | |||
109 | /** | ||
110 | * External hostname the plugin can be connected to, can be different to | ||
111 | * the host's FQDN, used e.g. for reverse proxying | ||
112 | */ | ||
113 | struct HttpAddress *ext_addr; | ||
114 | |||
115 | /** | ||
116 | * External address length | ||
117 | */ | ||
118 | size_t ext_addr_len; | ||
119 | |||
120 | /** | ||
121 | * Task calling transport service about external address | ||
122 | */ | ||
123 | struct GNUNET_SCHEDULER_Task *notify_ext_task; | ||
124 | |||
125 | /** | ||
126 | * Plugin name. | ||
127 | * Equals configuration section: transport-http, transport-https | ||
128 | */ | ||
129 | char *name; | ||
130 | |||
131 | /** | ||
132 | * Plugin protocol | ||
133 | * http, https | ||
134 | */ | ||
135 | char *protocol; | ||
136 | |||
137 | /** | ||
138 | * Use IPv4? #GNUNET_YES or #GNUNET_NO | ||
139 | */ | ||
140 | int ipv4; | ||
141 | |||
142 | /** | ||
143 | * Use IPv6? #GNUNET_YES or #GNUNET_NO | ||
144 | */ | ||
145 | int ipv6; | ||
146 | |||
147 | /** | ||
148 | * Does plugin just use outbound connections and not accept inbound? | ||
149 | */ | ||
150 | int client_only; | ||
151 | |||
152 | /** | ||
153 | * Port used | ||
154 | */ | ||
155 | uint16_t port; | ||
156 | |||
157 | /** | ||
158 | * Maximum number of sockets the plugin can use | ||
159 | * Each http inbound /outbound connections are two connections | ||
160 | */ | ||
161 | int max_connections; | ||
162 | |||
163 | /** | ||
164 | * Number of outbound sessions | ||
165 | */ | ||
166 | unsigned int outbound_sessions; | ||
167 | |||
168 | /** | ||
169 | * Number of inbound sessions | ||
170 | */ | ||
171 | unsigned int inbound_sessions; | ||
172 | |||
173 | /** | ||
174 | * libCurl TLS crypto init string, can be set to enhance performance | ||
175 | * | ||
176 | * Example: | ||
177 | * | ||
178 | * Use RC4-128 instead of AES: | ||
179 | * NONE:+VERS-TLS1.0:+ARCFOUR-128:+SHA1:+RSA:+COMP-NULL | ||
180 | */ | ||
181 | char *crypto_init; | ||
182 | |||
183 | /** | ||
184 | * TLS key | ||
185 | */ | ||
186 | char *key; | ||
187 | |||
188 | /** | ||
189 | * TLS certificate | ||
190 | */ | ||
191 | char *cert; | ||
192 | |||
193 | /** | ||
194 | * Current number of establishes connections | ||
195 | */ | ||
196 | int cur_connections; | ||
197 | |||
198 | /** | ||
199 | * Last used unique HTTP connection tag | ||
200 | */ | ||
201 | uint32_t last_tag; | ||
202 | |||
203 | /** | ||
204 | * MHD IPv4 daemon | ||
205 | */ | ||
206 | struct MHD_Daemon *server_v4; | ||
207 | |||
208 | /** | ||
209 | * MHD IPv4 task | ||
210 | */ | ||
211 | struct GNUNET_SCHEDULER_Task *server_v4_task; | ||
212 | |||
213 | /** | ||
214 | * The IPv4 server is scheduled to run asap | ||
215 | */ | ||
216 | int server_v4_immediately; | ||
217 | |||
218 | /** | ||
219 | * MHD IPv6 daemon | ||
220 | */ | ||
221 | struct MHD_Daemon *server_v6; | ||
222 | |||
223 | /** | ||
224 | * MHD IPv4 task | ||
225 | */ | ||
226 | struct GNUNET_SCHEDULER_Task *server_v6_task; | ||
227 | |||
228 | /** | ||
229 | * The IPv6 server is scheduled to run asap | ||
230 | */ | ||
231 | int server_v6_immediately; | ||
232 | |||
233 | /** | ||
234 | * IPv4 server socket to bind to | ||
235 | */ | ||
236 | struct sockaddr_in *server_addr_v4; | ||
237 | |||
238 | /** | ||
239 | * IPv6 server socket to bind to | ||
240 | */ | ||
241 | struct sockaddr_in6 *server_addr_v6; | ||
242 | |||
243 | /** | ||
244 | * Head of server semi connections | ||
245 | * A full session consists of 2 semi-connections: send and receive | ||
246 | * If not both directions are established the server keeps this sessions here | ||
247 | */ | ||
248 | struct GNUNET_ATS_Session *server_semi_head; | ||
249 | |||
250 | /** | ||
251 | * Tail of server semi connections | ||
252 | * A full session consists of 2 semi-connections: send and receive | ||
253 | * If not both directions are established the server keeps this sessions here | ||
254 | */ | ||
255 | struct GNUNET_ATS_Session *server_semi_tail; | ||
256 | |||
257 | /** | ||
258 | * cURL Multihandle | ||
259 | */ | ||
260 | CURLM *client_mh; | ||
261 | |||
262 | /** | ||
263 | * curl perform task | ||
264 | */ | ||
265 | struct GNUNET_SCHEDULER_Task *client_perform_task; | ||
266 | }; | ||
267 | |||
268 | GNUNET_NETWORK_STRUCT_BEGIN | ||
269 | |||
270 | /** | ||
271 | * HTTP addresses including a full URI | ||
272 | */ | ||
273 | struct HttpAddress | ||
274 | { | ||
275 | /** | ||
276 | * Length of the address following in NBO | ||
277 | */ | ||
278 | uint32_t addr_len GNUNET_PACKED; | ||
279 | |||
280 | /** | ||
281 | * Address following | ||
282 | */ | ||
283 | void *addr GNUNET_PACKED; | ||
284 | }; | ||
285 | |||
286 | /** | ||
287 | * IPv4 addresses | ||
288 | */ | ||
289 | struct IPv4HttpAddress | ||
290 | { | ||
291 | /** | ||
292 | * IPv4 address, in network byte order. | ||
293 | */ | ||
294 | uint32_t ipv4_addr GNUNET_PACKED; | ||
295 | |||
296 | /** | ||
297 | * Port number, in network byte order. | ||
298 | */ | ||
299 | uint16_t u4_port GNUNET_PACKED; | ||
300 | }; | ||
301 | |||
302 | /** | ||
303 | * IPv4 addresses | ||
304 | */ | ||
305 | struct IPv6HttpAddress | ||
306 | { | ||
307 | /** | ||
308 | * IPv6 address. | ||
309 | */ | ||
310 | struct in6_addr ipv6_addr GNUNET_PACKED; | ||
311 | |||
312 | /** | ||
313 | * Port number, in network byte order. | ||
314 | */ | ||
315 | uint16_t u6_port GNUNET_PACKED; | ||
316 | }; | ||
317 | GNUNET_NETWORK_STRUCT_END | ||
318 | |||
319 | |||
320 | struct ServerRequest | ||
321 | { | ||
322 | /** | ||
323 | * _RECV or _SEND | ||
324 | */ | ||
325 | int direction; | ||
326 | |||
327 | /** | ||
328 | * Should this connection get disconnected? #GNUNET_YES / #GNUNET_NO | ||
329 | */ | ||
330 | int disconnect; | ||
331 | |||
332 | /** | ||
333 | * The session this server connection belongs to | ||
334 | */ | ||
335 | struct GNUNET_ATS_Session *session; | ||
336 | |||
337 | /** | ||
338 | * The MHD connection | ||
339 | */ | ||
340 | struct MHD_Connection *mhd_conn; | ||
341 | }; | ||
342 | |||
343 | |||
344 | /** | ||
345 | * Session handle for connections. | ||
346 | */ | ||
347 | struct GNUNET_ATS_Session | ||
348 | { | ||
349 | /** | ||
350 | * To whom are we talking to | ||
351 | */ | ||
352 | struct GNUNET_PeerIdentity target; | ||
353 | |||
354 | /** | ||
355 | * Stored in a linked list. | ||
356 | */ | ||
357 | struct GNUNET_ATS_Session *next; | ||
358 | |||
359 | /** | ||
360 | * Stored in a linked list. | ||
361 | */ | ||
362 | struct GNUNET_ATS_Session *prev; | ||
363 | |||
364 | /** | ||
365 | * Pointer to the global plugin struct. | ||
366 | */ | ||
367 | struct Plugin *plugin; | ||
368 | |||
369 | /** | ||
370 | * Address | ||
371 | */ | ||
372 | void *addr; | ||
373 | |||
374 | /** | ||
375 | * Address length | ||
376 | */ | ||
377 | size_t addrlen; | ||
378 | |||
379 | /** | ||
380 | * ATS network type in NBO | ||
381 | */ | ||
382 | uint32_t ats_address_network_type; | ||
383 | |||
384 | /** | ||
385 | * next pointer for double linked list | ||
386 | */ | ||
387 | struct HTTP_Message *msg_head; | ||
388 | |||
389 | /** | ||
390 | * previous pointer for double linked list | ||
391 | */ | ||
392 | struct HTTP_Message *msg_tail; | ||
393 | |||
394 | /** | ||
395 | * Message stream tokenizer for incoming data | ||
396 | */ | ||
397 | struct GNUNET_SERVER_MessageStreamTokenizer *msg_tk; | ||
398 | |||
399 | /** | ||
400 | * Absolute time when to receive data again | ||
401 | * Used for receive throttling | ||
402 | */ | ||
403 | struct GNUNET_TIME_Absolute next_receive; | ||
404 | |||
405 | /** | ||
406 | * Inbound or outbound connection | ||
407 | * Outbound: #GNUNET_NO (client is used to send and receive) | ||
408 | * Inbound : #GNUNET_YES (server is used to send and receive) | ||
409 | */ | ||
410 | int inbound; | ||
411 | |||
412 | /** | ||
413 | * Unique HTTP/S connection tag for this connection | ||
414 | */ | ||
415 | uint32_t tag; | ||
416 | |||
417 | /** | ||
418 | * Client send handle | ||
419 | */ | ||
420 | void *client_put; | ||
421 | |||
422 | /** | ||
423 | * Client receive handle | ||
424 | */ | ||
425 | void *client_get; | ||
426 | |||
427 | /** | ||
428 | * Task to wake up client receive handle when receiving is allowed again | ||
429 | */ | ||
430 | struct GNUNET_SCHEDULER_Task *recv_wakeup_task; | ||
431 | |||
432 | /** | ||
433 | * Session timeout task | ||
434 | */ | ||
435 | struct GNUNET_SCHEDULER_Task *timeout_task; | ||
436 | |||
437 | /** | ||
438 | * Is client send handle paused since there are no data to send? | ||
439 | * #GNUNET_YES or #GNUNET_NO | ||
440 | */ | ||
441 | int client_put_paused; | ||
442 | |||
443 | /** | ||
444 | * Client send handle | ||
445 | */ | ||
446 | struct ServerRequest *server_recv; | ||
447 | |||
448 | /** | ||
449 | * Client send handle | ||
450 | */ | ||
451 | struct ServerRequest *server_send; | ||
452 | }; | ||
453 | |||
454 | |||
455 | /** | ||
456 | * Message to send using http | ||
457 | */ | ||
458 | struct HTTP_Message | ||
459 | { | ||
460 | /** | ||
461 | * next pointer for double linked list | ||
462 | */ | ||
463 | struct HTTP_Message *next; | ||
464 | |||
465 | /** | ||
466 | * previous pointer for double linked list | ||
467 | */ | ||
468 | struct HTTP_Message *prev; | ||
469 | |||
470 | /** | ||
471 | * buffer containing data to send | ||
472 | */ | ||
473 | char *buf; | ||
474 | |||
475 | /** | ||
476 | * amount of data already sent | ||
477 | */ | ||
478 | size_t pos; | ||
479 | |||
480 | /** | ||
481 | * buffer length | ||
482 | */ | ||
483 | size_t size; | ||
484 | |||
485 | /** | ||
486 | * Continuation function to call once the transmission buffer | ||
487 | * has again space available. NULL if there is no | ||
488 | * continuation to call. | ||
489 | */ | ||
490 | GNUNET_TRANSPORT_TransmitContinuation transmit_cont; | ||
491 | |||
492 | /** | ||
493 | * Closure for @e transmit_cont. | ||
494 | */ | ||
495 | void *transmit_cont_cls; | ||
496 | }; | ||
497 | |||
498 | |||
499 | struct GNUNET_ATS_Session * | ||
500 | create_session (struct Plugin *plugin, | ||
501 | const struct GNUNET_PeerIdentity *target, | ||
502 | const void *addr, | ||
503 | size_t addrlen); | ||
504 | |||
505 | |||
506 | int | ||
507 | exist_session (struct Plugin *plugin, | ||
508 | struct GNUNET_ATS_Session *s); | ||
509 | |||
510 | |||
511 | void | ||
512 | delete_session (struct GNUNET_ATS_Session *s); | ||
513 | |||
514 | |||
515 | int | ||
516 | exist_session (struct Plugin *plugin, | ||
517 | struct GNUNET_ATS_Session *s); | ||
518 | |||
519 | |||
520 | struct GNUNET_TIME_Relative | ||
521 | http_plugin_receive (void *cls, | ||
522 | const struct GNUNET_PeerIdentity *peer, | ||
523 | const struct GNUNET_MessageHeader *message, | ||
524 | struct GNUNET_ATS_Session *session, | ||
525 | const char *sender_address, | ||
526 | uint16_t sender_address_len); | ||
527 | |||
528 | |||
529 | const char * | ||
530 | http_plugin_address_to_string (void *cls, | ||
531 | const void *addr, | ||
532 | size_t addrlen); | ||
533 | |||
534 | |||
535 | int | ||
536 | client_disconnect (struct GNUNET_ATS_Session *s); | ||
537 | |||
538 | |||
539 | int | ||
540 | client_connect (struct GNUNET_ATS_Session *s); | ||
541 | |||
542 | |||
543 | int | ||
544 | client_send (struct GNUNET_ATS_Session *s, struct HTTP_Message *msg); | ||
545 | |||
546 | |||
547 | int | ||
548 | client_start (struct Plugin *plugin); | ||
549 | |||
550 | |||
551 | void | ||
552 | client_stop (struct Plugin *plugin); | ||
553 | |||
554 | |||
555 | int | ||
556 | server_disconnect (struct GNUNET_ATS_Session *s); | ||
557 | |||
558 | |||
559 | int | ||
560 | server_send (struct GNUNET_ATS_Session *s, struct HTTP_Message *msg); | ||
561 | |||
562 | |||
563 | int | ||
564 | server_start (struct Plugin *plugin); | ||
565 | |||
566 | |||
567 | void | ||
568 | server_stop (struct Plugin *plugin); | ||
569 | |||
570 | |||
571 | void | ||
572 | notify_session_end (void *cls, | ||
573 | const struct GNUNET_PeerIdentity *peer, | ||
574 | struct GNUNET_ATS_Session *s); | ||
575 | |||
576 | |||
577 | /*#ifndef PLUGIN_TRANSPORT_HTTP_H*/ | ||
578 | #endif | ||
579 | /* end of plugin_transport_http.h */ | ||