Mercurial > hg > nginx
annotate src/event/quic/ngx_event_quic_socket.c @ 8952:d78972cf4bac quic
QUIC: fixed format specifier after 6ccf3867959a.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Tue, 28 Dec 2021 13:50:01 +0300 |
parents | fb41e37ddeb0 |
children | 32daba3aabb2 |
rev | line source |
---|---|
8763 | 1 |
2 /* | |
3 * Copyright (C) Nginx, Inc. | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_event.h> | |
10 #include <ngx_event_quic_connection.h> | |
11 | |
12 | |
13 static ngx_int_t ngx_quic_create_temp_socket(ngx_connection_t *c, | |
14 ngx_quic_connection_t *qc, ngx_str_t *dcid, ngx_quic_path_t *path, | |
15 ngx_quic_client_id_t *cid); | |
16 | |
17 | |
18 ngx_int_t | |
19 ngx_quic_open_sockets(ngx_connection_t *c, ngx_quic_connection_t *qc, | |
20 ngx_quic_header_t *pkt) | |
21 { | |
22 ngx_quic_path_t *path; | |
23 ngx_quic_socket_t *qsock; | |
24 ngx_quic_client_id_t *cid; | |
25 | |
26 /* | |
27 * qc->nclient_ids = 0 | |
28 * qc->nsockets = 0 | |
29 * qc->max_retired_seqnum = 0 | |
30 * qc->client_seqnum = 0 | |
31 */ | |
32 | |
33 ngx_queue_init(&qc->sockets); | |
34 ngx_queue_init(&qc->free_sockets); | |
35 | |
36 ngx_queue_init(&qc->paths); | |
37 ngx_queue_init(&qc->free_paths); | |
38 | |
39 ngx_queue_init(&qc->client_ids); | |
40 ngx_queue_init(&qc->free_client_ids); | |
41 | |
42 qc->tp.original_dcid.len = pkt->odcid.len; | |
43 qc->tp.original_dcid.data = ngx_pstrdup(c->pool, &pkt->odcid); | |
44 if (qc->tp.original_dcid.data == NULL) { | |
45 return NGX_ERROR; | |
46 } | |
47 | |
48 /* socket to use for further processing */ | |
49 qsock = ngx_quic_alloc_socket(c, qc); | |
50 if (qsock == NULL) { | |
51 return NGX_ERROR; | |
52 } | |
53 | |
54 /* socket is listening at new server id (autogenerated) */ | |
55 if (ngx_quic_listen(c, qc, qsock) != NGX_OK) { | |
56 return NGX_ERROR; | |
57 } | |
58 | |
59 qc->tp.initial_scid.len = qsock->sid.len; | |
60 qc->tp.initial_scid.data = ngx_pnalloc(c->pool, qsock->sid.len); | |
61 if (qc->tp.initial_scid.data == NULL) { | |
62 goto failed; | |
63 } | |
64 ngx_memcpy(qc->tp.initial_scid.data, qsock->sid.id, qsock->sid.len); | |
65 | |
66 /* for all packets except first, this is set at udp layer */ | |
67 c->udp = &qsock->udp; | |
68 | |
69 /* ngx_quic_get_connection(c) macro is now usable */ | |
70 | |
71 /* we have a client identified by scid */ | |
72 cid = ngx_quic_create_client_id(c, &pkt->scid, 0, NULL); | |
73 if (cid == NULL) { | |
74 goto failed; | |
75 } | |
76 | |
77 /* the client arrived from this path */ | |
78 path = ngx_quic_add_path(c, c->sockaddr, c->socklen); | |
79 if (path == NULL) { | |
80 goto failed; | |
81 } | |
82 | |
83 if (pkt->validated) { | |
84 path->state = NGX_QUIC_PATH_VALIDATED; | |
8940
fb41e37ddeb0
QUIC: decoupled path state and limitation status.
Vladimir Homutov <vl@nginx.com>
parents:
8939
diff
changeset
|
85 path->limited = 0; |
8763 | 86 } |
87 | |
88 /* now bind socket to client and path */ | |
89 ngx_quic_connect(c, qsock, path, cid); | |
90 | |
91 if (ngx_quic_create_temp_socket(c, qc, &pkt->odcid, path, cid) != NGX_OK) { | |
92 goto failed; | |
93 } | |
94 | |
95 /* use this socket as default destination */ | |
96 qc->socket = qsock; | |
97 | |
98 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
99 "quic active socket is #%uL:%uL:%uL (%s)", | |
100 qsock->sid.seqnum, qsock->cid->seqnum, qsock->path->seqnum, | |
101 ngx_quic_path_state_str(qsock->path)); | |
102 | |
103 return NGX_OK; | |
104 | |
105 failed: | |
106 | |
107 ngx_rbtree_delete(&c->listening->rbtree, &qsock->udp.node); | |
108 c->udp = NULL; | |
109 | |
110 return NGX_ERROR; | |
111 } | |
112 | |
113 | |
114 static ngx_int_t | |
115 ngx_quic_create_temp_socket(ngx_connection_t *c, ngx_quic_connection_t *qc, | |
116 ngx_str_t *dcid, ngx_quic_path_t *path, ngx_quic_client_id_t *cid) | |
117 { | |
118 ngx_str_t id; | |
119 ngx_quic_socket_t *qsock; | |
120 ngx_quic_server_id_t *sid; | |
121 | |
122 qsock = ngx_quic_alloc_socket(c, qc); | |
123 if (qsock == NULL) { | |
124 return NGX_ERROR; | |
125 } | |
126 | |
127 sid = &qsock->sid; | |
128 | |
129 sid->seqnum = NGX_QUIC_UNSET_PN; /* mark socket as temporary */ | |
130 | |
131 sid->len = dcid->len; | |
132 ngx_memcpy(sid->id, dcid->data, dcid->len); | |
133 | |
134 id.len = sid->len; | |
135 id.data = sid->id; | |
136 | |
137 ngx_insert_udp_connection(c, &qsock->udp, &id); | |
138 | |
139 ngx_queue_insert_tail(&qc->sockets, &qsock->queue); | |
140 | |
141 qc->nsockets++; | |
142 qsock->quic = qc; | |
143 | |
144 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
145 "quic socket #%L listening at sid:%xV nsock:%ui", | |
146 (int64_t) sid->seqnum, &id, qc->nsockets); | |
147 | |
148 ngx_quic_connect(c, qsock, path, cid); | |
149 | |
150 return NGX_OK; | |
151 } | |
152 | |
153 | |
154 ngx_quic_socket_t * | |
155 ngx_quic_alloc_socket(ngx_connection_t *c, ngx_quic_connection_t *qc) | |
156 { | |
157 ngx_queue_t *q; | |
158 ngx_quic_socket_t *sock; | |
159 | |
160 if (!ngx_queue_empty(&qc->free_sockets)) { | |
161 | |
162 q = ngx_queue_head(&qc->free_sockets); | |
163 sock = ngx_queue_data(q, ngx_quic_socket_t, queue); | |
164 | |
165 ngx_queue_remove(&sock->queue); | |
166 | |
167 ngx_memzero(sock, sizeof(ngx_quic_socket_t)); | |
168 | |
169 } else { | |
170 | |
171 sock = ngx_pcalloc(c->pool, sizeof(ngx_quic_socket_t)); | |
172 if (sock == NULL) { | |
173 return NULL; | |
174 } | |
175 } | |
176 | |
177 return sock; | |
178 } | |
179 | |
180 | |
181 void | |
182 ngx_quic_close_socket(ngx_connection_t *c, ngx_quic_socket_t *qsock) | |
183 { | |
184 ngx_quic_connection_t *qc; | |
185 | |
186 qc = ngx_quic_get_connection(c); | |
187 | |
188 ngx_queue_remove(&qsock->queue); | |
189 ngx_queue_insert_head(&qc->free_sockets, &qsock->queue); | |
190 | |
191 ngx_rbtree_delete(&c->listening->rbtree, &qsock->udp.node); | |
192 qc->nsockets--; | |
193 | |
194 if (qsock->path) { | |
195 ngx_quic_unref_path(c, qsock->path); | |
196 } | |
197 | |
198 if (qsock->cid) { | |
199 ngx_quic_unref_client_id(c, qsock->cid); | |
200 } | |
201 | |
202 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
203 "quic socket #%L closed nsock:%ui", | |
204 (int64_t) qsock->sid.seqnum, qc->nsockets); | |
205 } | |
206 | |
207 | |
8911
b09f055daa4e
QUIC: fixed handling of RETIRE_CONNECTION_ID frame.
Vladimir Homutov <vl@nginx.com>
parents:
8888
diff
changeset
|
208 void |
8763 | 209 ngx_quic_unref_path(ngx_connection_t *c, ngx_quic_path_t *path) |
210 { | |
211 ngx_quic_connection_t *qc; | |
212 | |
213 path->refcnt--; | |
214 | |
215 if (path->refcnt) { | |
216 return; | |
217 } | |
218 | |
219 qc = ngx_quic_get_connection(c); | |
220 | |
221 ngx_queue_remove(&path->queue); | |
222 ngx_queue_insert_head(&qc->free_paths, &path->queue); | |
223 | |
224 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
225 "quic path #%uL addr:%V removed", | |
226 path->seqnum, &path->addr_text); | |
227 } | |
228 | |
229 | |
230 ngx_int_t | |
231 ngx_quic_listen(ngx_connection_t *c, ngx_quic_connection_t *qc, | |
232 ngx_quic_socket_t *qsock) | |
233 { | |
234 ngx_str_t id; | |
235 ngx_quic_server_id_t *sid; | |
236 | |
237 sid = &qsock->sid; | |
238 | |
239 sid->len = NGX_QUIC_SERVER_CID_LEN; | |
240 | |
241 if (ngx_quic_create_server_id(c, sid->id) != NGX_OK) { | |
242 return NGX_ERROR; | |
243 } | |
244 | |
245 sid->seqnum = qc->server_seqnum++; | |
246 | |
247 id.data = sid->id; | |
248 id.len = sid->len; | |
249 | |
250 ngx_insert_udp_connection(c, &qsock->udp, &id); | |
251 | |
252 ngx_queue_insert_tail(&qc->sockets, &qsock->queue); | |
253 | |
254 qc->nsockets++; | |
255 qsock->quic = qc; | |
256 | |
257 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
258 "quic socket #%uL listening at sid:%xV nsock:%ui", | |
259 sid->seqnum, &id, qc->nsockets); | |
260 | |
261 return NGX_OK; | |
262 } | |
263 | |
264 | |
265 void | |
266 ngx_quic_connect(ngx_connection_t *c, ngx_quic_socket_t *sock, | |
267 ngx_quic_path_t *path, ngx_quic_client_id_t *cid) | |
268 { | |
269 sock->path = path; | |
270 path->refcnt++; | |
271 | |
272 sock->cid = cid; | |
273 cid->refcnt++; | |
274 | |
275 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
276 "quic socket #%L connected to cid #%uL path:%uL", | |
277 (int64_t) sock->sid.seqnum, | |
278 sock->cid->seqnum, path->seqnum); | |
279 } | |
280 | |
281 | |
282 void | |
283 ngx_quic_close_sockets(ngx_connection_t *c) | |
284 { | |
285 ngx_queue_t *q; | |
286 ngx_quic_socket_t *qsock; | |
287 ngx_quic_connection_t *qc; | |
288 | |
289 qc = ngx_quic_get_connection(c); | |
290 | |
291 while (!ngx_queue_empty(&qc->sockets)) { | |
292 q = ngx_queue_head(&qc->sockets); | |
293 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue); | |
294 | |
295 ngx_quic_close_socket(c, qsock); | |
296 } | |
297 } | |
298 | |
299 | |
300 ngx_quic_socket_t * | |
301 ngx_quic_find_socket(ngx_connection_t *c, uint64_t seqnum) | |
302 { | |
303 ngx_queue_t *q; | |
304 ngx_quic_socket_t *qsock; | |
305 ngx_quic_connection_t *qc; | |
306 | |
307 qc = ngx_quic_get_connection(c); | |
308 | |
309 for (q = ngx_queue_head(&qc->sockets); | |
310 q != ngx_queue_sentinel(&qc->sockets); | |
311 q = ngx_queue_next(q)) | |
312 { | |
313 qsock = ngx_queue_data(q, ngx_quic_socket_t, queue); | |
314 | |
315 if (qsock->sid.seqnum == seqnum) { | |
316 return qsock; | |
317 } | |
318 } | |
319 | |
320 return NULL; | |
321 } | |
322 | |
323 | |
324 ngx_quic_socket_t * | |
325 ngx_quic_get_unconnected_socket(ngx_connection_t *c) | |
326 { | |
327 ngx_queue_t *q; | |
328 ngx_quic_socket_t *sock; | |
329 ngx_quic_connection_t *qc; | |
330 | |
331 qc = ngx_quic_get_connection(c); | |
332 | |
333 for (q = ngx_queue_head(&qc->sockets); | |
334 q != ngx_queue_sentinel(&qc->sockets); | |
335 q = ngx_queue_next(q)) | |
336 { | |
337 sock = ngx_queue_data(q, ngx_quic_socket_t, queue); | |
338 | |
339 if (sock->cid == NULL) { | |
340 return sock; | |
341 } | |
342 } | |
343 | |
344 return NULL; | |
8888 | 345 } |