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Commit | Line | Data |
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99e1cc7b TM |
1 | /* |
2 | * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | #include <openssl/macros.h> | |
11 | #include <openssl/objects.h> | |
22d53c88 HL |
12 | #include <openssl/sslerr.h> |
13 | #include <crypto/rand.h> | |
99e1cc7b | 14 | #include "quic_local.h" |
2723d705 | 15 | #include "internal/quic_tls.h" |
22d53c88 HL |
16 | #include "internal/quic_rx_depack.h" |
17 | #include "internal/quic_error.h" | |
18 | #include "internal/time.h" | |
99e1cc7b | 19 | |
cb5c208b | 20 | static void aon_write_finish(QUIC_XSO *xso); |
23c04709 | 21 | static int create_channel(QUIC_CONNECTION *qc); |
21c80696 | 22 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs); |
8b7be3aa HL |
23 | static int qc_try_create_default_xso_for_write(QUIC_CONNECTION *qc); |
24 | static int qc_wait_for_default_xso_for_read(QUIC_CONNECTION *qc); | |
25 | static void quic_lock(QUIC_CONNECTION *qc); | |
26 | static void quic_unlock(QUIC_CONNECTION *qc); | |
27 | static int quic_do_handshake(QUIC_CONNECTION *qc); | |
995ff282 HL |
28 | static void qc_update_reject_policy(QUIC_CONNECTION *qc); |
29 | static void qc_touch_default_xso(QUIC_CONNECTION *qc); | |
30 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch); | |
9cab4bd5 HL |
31 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
32 | int touch, QUIC_XSO **old_xso); | |
13ac037d HL |
33 | static SSL *quic_conn_stream_new(QUIC_CONNECTION *qc, uint64_t flags, |
34 | int need_lock); | |
22d53c88 HL |
35 | |
36 | /* | |
37 | * QUIC Front-End I/O API: Common Utilities | |
38 | * ======================================== | |
39 | */ | |
40 | ||
41 | /* | |
42 | * Block until a predicate is met. | |
43 | * | |
44 | * Precondition: Must have a channel. | |
d7b1fadd | 45 | * Precondition: Must hold channel lock (unchecked). |
22d53c88 | 46 | */ |
d7b1fadd | 47 | QUIC_NEEDS_LOCK |
22d53c88 HL |
48 | static int block_until_pred(QUIC_CONNECTION *qc, |
49 | int (*pred)(void *arg), void *pred_arg, | |
50 | uint32_t flags) | |
51 | { | |
52 | QUIC_REACTOR *rtor; | |
53 | ||
54 | assert(qc->ch != NULL); | |
55 | ||
56 | rtor = ossl_quic_channel_get_reactor(qc->ch); | |
c019e1ef | 57 | return ossl_quic_reactor_block_until_pred(rtor, pred, pred_arg, flags, |
4847599b | 58 | qc->mutex); |
22d53c88 HL |
59 | } |
60 | ||
61 | /* | |
62 | * Raise a 'normal' error, meaning one that can be reported via SSL_get_error() | |
63 | * rather than via ERR. | |
64 | */ | |
65 | static int quic_raise_normal_error(QUIC_CONNECTION *qc, | |
66 | int err) | |
67 | { | |
68 | qc->last_error = err; | |
69 | return 0; | |
70 | } | |
71 | ||
72 | /* | |
73 | * Raise a 'non-normal' error, meaning any error that is not reported via | |
74 | * SSL_get_error() and must be reported via ERR. | |
e88cdb8e HL |
75 | * |
76 | * qc should be provided if available. In exceptional circumstances when qc is | |
77 | * not known NULL may be passed. This should generally only happen when an | |
78 | * expect_...() function defined below fails, which generally indicates a | |
79 | * dispatch error or caller error. | |
22d53c88 HL |
80 | */ |
81 | static int quic_raise_non_normal_error(QUIC_CONNECTION *qc, | |
82 | const char *file, | |
83 | int line, | |
84 | const char *func, | |
85 | int reason, | |
86 | const char *fmt, | |
87 | ...) | |
88 | { | |
89 | va_list args; | |
90 | ||
91 | ERR_new(); | |
92 | ERR_set_debug(file, line, func); | |
93 | ||
94 | va_start(args, fmt); | |
95 | ERR_vset_error(ERR_LIB_SSL, reason, fmt, args); | |
96 | va_end(args); | |
97 | ||
e88cdb8e HL |
98 | if (qc != NULL) |
99 | qc->last_error = SSL_ERROR_SSL; | |
100 | ||
22d53c88 HL |
101 | return 0; |
102 | } | |
103 | ||
104 | #define QUIC_RAISE_NORMAL_ERROR(qc, err) \ | |
105 | quic_raise_normal_error((qc), (err)) | |
106 | ||
107 | #define QUIC_RAISE_NON_NORMAL_ERROR(qc, reason, msg) \ | |
108 | quic_raise_non_normal_error((qc), \ | |
109 | OPENSSL_FILE, OPENSSL_LINE, \ | |
110 | OPENSSL_FUNC, \ | |
111 | (reason), \ | |
112 | (msg)) | |
113 | ||
114 | /* | |
e88cdb8e HL |
115 | * QCTX is a utility structure which provides information we commonly wish to |
116 | * unwrap upon an API call being dispatched to us, namely: | |
117 | * | |
118 | * - a pointer to the QUIC_CONNECTION (regardless of whether a QCSO or QSSO | |
119 | * was passed); | |
120 | * - a pointer to any applicable QUIC_XSO (e.g. if a QSSO was passed, or if | |
121 | * a QCSO with a default stream was passed); | |
122 | * - whether a QSSO was passed (xso == NULL must not be used to determine this | |
123 | * because it may be non-NULL when a QCSO is passed if that QCSO has a | |
124 | * default stream). | |
125 | */ | |
126 | typedef struct qctx_st { | |
127 | QUIC_CONNECTION *qc; | |
128 | QUIC_XSO *xso; | |
129 | int is_stream; | |
130 | } QCTX; | |
131 | ||
132 | /* | |
133 | * Given a QCSO or QSSO, initialises a QCTX, determining the contextually | |
134 | * applicable QUIC_CONNECTION pointer and, if applicable, QUIC_XSO pointer. | |
135 | * | |
136 | * After this returns 1, all fields of the passed QCTX are initialised. | |
137 | * Returns 0 on failure. This function is intended to be used to provide API | |
138 | * semantics and as such, it invokes QUIC_RAISE_NON_NORMAL_ERROR() on failure. | |
22d53c88 | 139 | */ |
e88cdb8e | 140 | static int expect_quic(const SSL *s, QCTX *ctx) |
22d53c88 | 141 | { |
e88cdb8e HL |
142 | QUIC_CONNECTION *qc; |
143 | QUIC_XSO *xso; | |
144 | ||
145 | ctx->qc = NULL; | |
146 | ctx->xso = NULL; | |
147 | ctx->is_stream = 0; | |
148 | ||
149 | if (s == NULL) | |
8b7be3aa | 150 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_PASSED_NULL_PARAMETER, NULL); |
22d53c88 | 151 | |
e88cdb8e HL |
152 | switch (s->type) { |
153 | case SSL_TYPE_QUIC_CONNECTION: | |
154 | qc = (QUIC_CONNECTION *)s; | |
155 | ctx->qc = qc; | |
cb5c208b | 156 | ctx->xso = qc->default_xso; |
e88cdb8e HL |
157 | ctx->is_stream = 0; |
158 | return 1; | |
159 | ||
160 | case SSL_TYPE_QUIC_XSO: | |
161 | xso = (QUIC_XSO *)s; | |
cb5c208b | 162 | ctx->qc = xso->conn; |
e88cdb8e HL |
163 | ctx->xso = xso; |
164 | ctx->is_stream = 1; | |
165 | return 1; | |
166 | ||
167 | default: | |
168 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); | |
169 | } | |
170 | } | |
171 | ||
172 | /* | |
173 | * Like expect_quic(), but requires a QUIC_XSO be contextually available. In | |
174 | * other words, requires that the passed QSO be a QSSO or a QCSO with a default | |
175 | * stream. | |
21c80696 HL |
176 | * |
177 | * remote_init determines if we expect the default XSO to be remotely created or | |
178 | * not. If it is -1, do not instantiate a default XSO if one does not yet exist. | |
8b7be3aa HL |
179 | * |
180 | * Channel mutex is acquired and retained on success. | |
e88cdb8e | 181 | */ |
8b7be3aa HL |
182 | QUIC_ACQUIRES_LOCK |
183 | static int ossl_unused expect_quic_with_stream_lock(const SSL *s, int remote_init, | |
184 | QCTX *ctx) | |
e88cdb8e HL |
185 | { |
186 | if (!expect_quic(s, ctx)) | |
187 | return 0; | |
188 | ||
8b7be3aa HL |
189 | quic_lock(ctx->qc); |
190 | ||
21c80696 | 191 | if (ctx->xso == NULL && remote_init >= 0) { |
8b7be3aa HL |
192 | if (ossl_quic_channel_is_term_any(ctx->qc->ch)) { |
193 | QUIC_RAISE_NON_NORMAL_ERROR(ctx->qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
194 | goto err; | |
195 | } | |
196 | ||
197 | /* If we haven't finished the handshake, try to advance it. */ | |
198 | if (quic_do_handshake(ctx->qc) < 1) | |
199 | /* ossl_quic_do_handshake raised error here */ | |
200 | goto err; | |
201 | ||
202 | if (remote_init == 0) { | |
203 | if (!qc_try_create_default_xso_for_write(ctx->qc)) | |
204 | goto err; | |
205 | } else { | |
206 | if (!qc_wait_for_default_xso_for_read(ctx->qc)) | |
207 | goto err; | |
208 | } | |
209 | ||
21c80696 HL |
210 | ctx->xso = ctx->qc->default_xso; |
211 | } | |
212 | ||
8b7be3aa HL |
213 | if (ctx->xso == NULL) { |
214 | QUIC_RAISE_NON_NORMAL_ERROR(ctx->qc, SSL_R_NO_STREAM, NULL); | |
215 | goto err; | |
216 | } | |
217 | ||
218 | return 1; /* lock held */ | |
e88cdb8e | 219 | |
8b7be3aa HL |
220 | err: |
221 | quic_unlock(ctx->qc); | |
222 | return 0; | |
e88cdb8e | 223 | } |
22d53c88 | 224 | |
e88cdb8e HL |
225 | /* |
226 | * Like expect_quic(), but fails if called on a QUIC_XSO. ctx->xso may still | |
227 | * be non-NULL if the QCSO has a default stream. | |
228 | */ | |
23c04709 | 229 | static int ossl_unused expect_quic_conn_only(const SSL *s, QCTX *ctx) |
e88cdb8e HL |
230 | { |
231 | if (!expect_quic(s, ctx)) | |
232 | return 0; | |
233 | ||
234 | if (ctx->is_stream) | |
8b7be3aa | 235 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx->qc, SSL_R_CONN_USE_ONLY, NULL); |
e88cdb8e HL |
236 | |
237 | return 1; | |
22d53c88 HL |
238 | } |
239 | ||
4847599b HL |
240 | /* |
241 | * Ensures that the channel mutex is held for a method which touches channel | |
242 | * state. | |
243 | * | |
244 | * Precondition: Channel mutex is not held (unchecked) | |
245 | */ | |
20f45743 | 246 | static void quic_lock(QUIC_CONNECTION *qc) |
4847599b | 247 | { |
ffce2946 | 248 | ossl_crypto_mutex_lock(qc->mutex); |
4847599b HL |
249 | } |
250 | ||
251 | /* Precondition: Channel mutex is held (unchecked) */ | |
252 | QUIC_NEEDS_LOCK | |
253 | static void quic_unlock(QUIC_CONNECTION *qc) | |
254 | { | |
ffce2946 | 255 | ossl_crypto_mutex_unlock(qc->mutex); |
4847599b HL |
256 | } |
257 | ||
258 | ||
22d53c88 HL |
259 | /* |
260 | * QUIC Front-End I/O API: Initialization | |
261 | * ====================================== | |
262 | * | |
263 | * SSL_new => ossl_quic_new | |
264 | * ossl_quic_init | |
265 | * SSL_reset => ossl_quic_reset | |
266 | * SSL_clear => ossl_quic_clear | |
267 | * ossl_quic_deinit | |
268 | * SSL_free => ossl_quic_free | |
269 | * | |
270 | */ | |
271 | ||
272 | /* SSL_new */ | |
38b051a1 TM |
273 | SSL *ossl_quic_new(SSL_CTX *ctx) |
274 | { | |
22d53c88 HL |
275 | QUIC_CONNECTION *qc = NULL; |
276 | SSL *ssl_base = NULL; | |
a7f41885 | 277 | SSL_CONNECTION *sc = NULL; |
38b051a1 TM |
278 | |
279 | qc = OPENSSL_zalloc(sizeof(*qc)); | |
280 | if (qc == NULL) | |
281 | goto err; | |
282 | ||
22d53c88 HL |
283 | /* Initialise the QUIC_CONNECTION's stub header. */ |
284 | ssl_base = &qc->ssl; | |
a7f41885 | 285 | if (!ossl_ssl_init(ssl_base, ctx, ctx->method, SSL_TYPE_QUIC_CONNECTION)) { |
22d53c88 | 286 | ssl_base = NULL; |
38b051a1 TM |
287 | goto err; |
288 | } | |
38b051a1 | 289 | |
4e3a55fd | 290 | qc->tls = ossl_ssl_connection_new_int(ctx, TLS_method()); |
a7f41885 MC |
291 | if (qc->tls == NULL || (sc = SSL_CONNECTION_FROM_SSL(qc->tls)) == NULL) |
292 | goto err; | |
a7f41885 | 293 | |
ffce2946 | 294 | if ((qc->mutex = ossl_crypto_mutex_new()) == NULL) |
4847599b HL |
295 | goto err; |
296 | ||
f2f7c4f1 HL |
297 | qc->is_thread_assisted |
298 | = (ssl_base->method == OSSL_QUIC_client_thread_method()); | |
299 | ||
dfb9ae14 HL |
300 | qc->as_server = 0; /* TODO(QUIC): server support */ |
301 | qc->as_server_state = qc->as_server; | |
302 | ||
8b7be3aa | 303 | qc->default_stream_mode = SSL_DEFAULT_STREAM_MODE_AUTO_BIDI; |
21c80696 HL |
304 | qc->default_ssl_mode = qc->ssl.ctx->mode; |
305 | qc->default_blocking = 1; | |
8a90df34 HL |
306 | qc->incoming_stream_reject_policy |
307 | = SSL_INCOMING_STREAM_REJECT_POLICY_AUTO; | |
21c80696 | 308 | qc->last_error = SSL_ERROR_NONE; |
a7f41885 | 309 | |
23c04709 HL |
310 | if (!create_channel(qc)) |
311 | goto err; | |
312 | ||
995ff282 HL |
313 | qc_update_reject_policy(qc); |
314 | ||
21c80696 HL |
315 | /* |
316 | * We do not create the default XSO yet. The reason for this is that the | |
317 | * stream ID of the default XSO will depend on whether the stream is client | |
318 | * or server-initiated, which depends on who transmits first. Since we do | |
319 | * not know whether the application will be using a client-transmits-first | |
320 | * or server-transmits-first protocol, we defer default XSO creation until | |
321 | * the client calls SSL_read() or SSL_write(). If it calls SSL_read() first, | |
322 | * we take that as a cue that the client is expecting a server-initiated | |
323 | * stream, and vice versa if SSL_write() is called first. | |
324 | */ | |
22d53c88 HL |
325 | return ssl_base; |
326 | ||
38b051a1 | 327 | err: |
2dbc39de HL |
328 | if (qc != NULL) { |
329 | ossl_quic_channel_free(qc->ch); | |
330 | SSL_free(qc->tls); | |
331 | } | |
22d53c88 | 332 | OPENSSL_free(qc); |
38b051a1 TM |
333 | return NULL; |
334 | } | |
335 | ||
22d53c88 | 336 | /* SSL_free */ |
a8489257 | 337 | QUIC_TAKES_LOCK |
22d53c88 HL |
338 | void ossl_quic_free(SSL *s) |
339 | { | |
072328dd | 340 | QCTX ctx; |
9cab4bd5 | 341 | int is_default; |
22d53c88 | 342 | |
072328dd HL |
343 | /* We should never be called on anything but a QSO. */ |
344 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
345 | return; |
346 | ||
22b1a96f HL |
347 | quic_lock(ctx.qc); |
348 | ||
2dbc39de HL |
349 | if (ctx.is_stream) { |
350 | /* | |
351 | * When a QSSO is freed, the XSO is freed immediately, because the XSO | |
352 | * itself only contains API personality layer data. However the | |
353 | * underlying QUIC_STREAM is not freed immediately but is instead marked | |
354 | * as deleted for later collection. | |
355 | */ | |
356 | ||
2dbc39de HL |
357 | assert(ctx.qc->num_xso > 0); |
358 | --ctx.qc->num_xso; | |
359 | ||
9aaafc26 HL |
360 | /* If a stream's send part has not been finished, auto-reset it. */ |
361 | if (ctx.xso->stream->sstream != NULL | |
362 | && !ossl_quic_sstream_get_final_size(ctx.xso->stream->sstream, NULL)) | |
363 | ossl_quic_stream_map_reset_stream_send_part(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
364 | ctx.xso->stream, 0); | |
2dbc39de | 365 | |
9aaafc26 HL |
366 | /* Do STOP_SENDING for the receive part, if applicable. */ |
367 | if (ctx.xso->stream->rstream != NULL) | |
368 | ossl_quic_stream_map_stop_sending_recv_part(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
369 | ctx.xso->stream, 0); | |
f20fdd16 HL |
370 | |
371 | /* Update stream state. */ | |
9aaafc26 HL |
372 | ctx.xso->stream->deleted = 1; |
373 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
f20fdd16 HL |
374 | ctx.xso->stream); |
375 | ||
9cab4bd5 | 376 | is_default = (ctx.xso == ctx.qc->default_xso); |
2dbc39de HL |
377 | quic_unlock(ctx.qc); |
378 | ||
9cab4bd5 HL |
379 | /* |
380 | * Unref the connection in most cases; the XSO has a ref to the QC and | |
381 | * not vice versa. But for a default XSO, to avoid circular references, | |
382 | * the QC refs the XSO but the XSO does not ref the QC. If we are the | |
383 | * default XSO, we only get here when the QC is being torn down anyway, | |
384 | * so don't call SSL_free(qc) as we are already in it. | |
385 | */ | |
386 | if (!is_default) | |
387 | SSL_free(&ctx.qc->ssl); | |
388 | ||
2dbc39de HL |
389 | /* Note: SSL_free calls OPENSSL_free(xso) for us */ |
390 | return; | |
391 | } | |
392 | ||
2dbc39de HL |
393 | /* |
394 | * Free the default XSO, if any. The QUIC_STREAM is not deleted at this | |
395 | * stage, but is freed during the channel free when the whole QSM is freed. | |
396 | */ | |
21c80696 HL |
397 | if (ctx.qc->default_xso != NULL) { |
398 | QUIC_XSO *xso = ctx.qc->default_xso; | |
399 | ||
400 | quic_unlock(ctx.qc); | |
401 | SSL_free(&xso->ssl); | |
402 | quic_lock(ctx.qc); | |
9cab4bd5 | 403 | ctx.qc->default_xso = NULL; |
21c80696 | 404 | } |
2dbc39de HL |
405 | |
406 | /* Ensure we have no remaining XSOs. */ | |
407 | assert(ctx.qc->num_xso == 0); | |
408 | ||
072328dd HL |
409 | if (ctx.qc->is_thread_assisted && ctx.qc->started) { |
410 | ossl_quic_thread_assist_wait_stopped(&ctx.qc->thread_assist); | |
411 | ossl_quic_thread_assist_cleanup(&ctx.qc->thread_assist); | |
dbe7b51a | 412 | } |
f2f7c4f1 | 413 | |
072328dd | 414 | ossl_quic_channel_free(ctx.qc->ch); |
22d53c88 | 415 | |
072328dd HL |
416 | BIO_free(ctx.qc->net_rbio); |
417 | BIO_free(ctx.qc->net_wbio); | |
d1ac77b1 | 418 | |
22d53c88 | 419 | /* Note: SSL_free calls OPENSSL_free(qc) for us */ |
a7f41885 | 420 | |
072328dd HL |
421 | SSL_free(ctx.qc->tls); |
422 | ossl_crypto_mutex_free(&ctx.qc->mutex); /* freed while still locked */ | |
22d53c88 HL |
423 | } |
424 | ||
425 | /* SSL method init */ | |
38b051a1 | 426 | int ossl_quic_init(SSL *s) |
99e1cc7b | 427 | { |
22d53c88 HL |
428 | /* Same op as SSL_clear, forward the call. */ |
429 | return ossl_quic_clear(s); | |
99e1cc7b TM |
430 | } |
431 | ||
22d53c88 | 432 | /* SSL method deinit */ |
38b051a1 TM |
433 | void ossl_quic_deinit(SSL *s) |
434 | { | |
22d53c88 | 435 | /* No-op. */ |
38b051a1 TM |
436 | } |
437 | ||
22d53c88 HL |
438 | /* SSL_reset */ |
439 | int ossl_quic_reset(SSL *s) | |
440 | { | |
072328dd | 441 | QCTX ctx; |
22d53c88 | 442 | |
072328dd | 443 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
444 | return 0; |
445 | ||
c8b3fdc2 | 446 | /* TODO(QUIC); Currently a no-op. */ |
22d53c88 HL |
447 | return 1; |
448 | } | |
449 | ||
450 | /* SSL_clear */ | |
451 | int ossl_quic_clear(SSL *s) | |
99e1cc7b | 452 | { |
072328dd | 453 | QCTX ctx; |
38b051a1 | 454 | |
072328dd | 455 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
456 | return 0; |
457 | ||
c8b3fdc2 | 458 | /* TODO(QUIC): Currently a no-op. */ |
22d53c88 HL |
459 | return 1; |
460 | } | |
38b051a1 | 461 | |
b212d554 HL |
462 | void ossl_quic_conn_set_override_now_cb(SSL *s, |
463 | OSSL_TIME (*now_cb)(void *arg), | |
464 | void *now_cb_arg) | |
465 | { | |
072328dd | 466 | QCTX ctx; |
b212d554 | 467 | |
072328dd HL |
468 | if (!expect_quic(s, &ctx)) |
469 | return; | |
470 | ||
471 | ctx.qc->override_now_cb = now_cb; | |
472 | ctx.qc->override_now_cb_arg = now_cb_arg; | |
b212d554 HL |
473 | } |
474 | ||
3b1ab5a3 HL |
475 | void ossl_quic_conn_force_assist_thread_wake(SSL *s) |
476 | { | |
072328dd HL |
477 | QCTX ctx; |
478 | ||
479 | if (!expect_quic(s, &ctx)) | |
480 | return; | |
3b1ab5a3 | 481 | |
072328dd HL |
482 | if (ctx.qc->is_thread_assisted && ctx.qc->started) |
483 | ossl_quic_thread_assist_notify_deadline_changed(&ctx.qc->thread_assist); | |
3b1ab5a3 HL |
484 | } |
485 | ||
995ff282 HL |
486 | QUIC_NEEDS_LOCK |
487 | static void qc_touch_default_xso(QUIC_CONNECTION *qc) | |
488 | { | |
489 | qc->default_xso_created = 1; | |
490 | qc_update_reject_policy(qc); | |
491 | } | |
492 | ||
9cab4bd5 HL |
493 | /* |
494 | * Changes default XSO. Allows caller to keep reference to the old default XSO | |
495 | * (if any). Reference to new XSO is transferred from caller. | |
496 | */ | |
995ff282 | 497 | QUIC_NEEDS_LOCK |
9cab4bd5 HL |
498 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
499 | int touch, | |
500 | QUIC_XSO **old_xso) | |
995ff282 | 501 | { |
9cab4bd5 HL |
502 | int refs; |
503 | ||
504 | *old_xso = NULL; | |
505 | ||
506 | if (qc->default_xso != xso) { | |
507 | *old_xso = qc->default_xso; /* transfer old XSO ref to caller */ | |
508 | ||
509 | qc->default_xso = xso; | |
510 | ||
511 | if (xso == NULL) { | |
512 | /* | |
513 | * Changing to not having a default XSO. XSO becomes standalone and | |
514 | * now has a ref to the QC. | |
515 | */ | |
516 | if (!ossl_assert(SSL_up_ref(&qc->ssl))) | |
517 | return; | |
518 | } else { | |
519 | /* | |
520 | * Changing from not having a default XSO to having one. The new XSO | |
521 | * will have had a reference to the QC we need to drop to avoid a | |
522 | * circular reference. | |
523 | */ | |
524 | CRYPTO_DOWN_REF(&qc->ssl.references, &refs, &qc->ssl.lock); | |
525 | assert(refs > 0); | |
526 | } | |
527 | } | |
528 | ||
995ff282 HL |
529 | if (touch) |
530 | qc_touch_default_xso(qc); | |
531 | } | |
532 | ||
9cab4bd5 HL |
533 | /* |
534 | * Changes default XSO, releasing the reference to any previous default XSO. | |
535 | * Reference to new XSO is transferred from caller. | |
536 | */ | |
537 | QUIC_NEEDS_LOCK | |
538 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch) | |
539 | { | |
540 | QUIC_XSO *old_xso = NULL; | |
541 | ||
542 | qc_set_default_xso_keep_ref(qc, xso, touch, &old_xso); | |
543 | ||
544 | if (old_xso != NULL) | |
545 | SSL_free(&old_xso->ssl); | |
546 | } | |
547 | ||
22d53c88 HL |
548 | /* |
549 | * QUIC Front-End I/O API: Network BIO Configuration | |
550 | * ================================================= | |
551 | * | |
552 | * Handling the different BIOs is difficult: | |
553 | * | |
554 | * - It is more or less a requirement that we use non-blocking network I/O; | |
555 | * we need to be able to have timeouts on recv() calls, and make best effort | |
556 | * (non blocking) send() and recv() calls. | |
557 | * | |
558 | * The only sensible way to do this is to configure the socket into | |
559 | * non-blocking mode. We could try to do select() before calling send() or | |
560 | * recv() to get a guarantee that the call will not block, but this will | |
561 | * probably run into issues with buggy OSes which generate spurious socket | |
562 | * readiness events. In any case, relying on this to work reliably does not | |
563 | * seem sane. | |
564 | * | |
565 | * Timeouts could be handled via setsockopt() socket timeout options, but | |
566 | * this depends on OS support and adds another syscall to every network I/O | |
567 | * operation. It also has obvious thread safety concerns if we want to move | |
568 | * to concurrent use of a single socket at some later date. | |
569 | * | |
570 | * Some OSes support a MSG_DONTWAIT flag which allows a single I/O option to | |
571 | * be made non-blocking. However some OSes (e.g. Windows) do not support | |
572 | * this, so we cannot rely on this. | |
573 | * | |
574 | * As such, we need to configure any FD in non-blocking mode. This may | |
575 | * confound users who pass a blocking socket to libssl. However, in practice | |
576 | * it would be extremely strange for a user of QUIC to pass an FD to us, | |
577 | * then also try and send receive traffic on the same socket(!). Thus the | |
578 | * impact of this should be limited, and can be documented. | |
579 | * | |
580 | * - We support both blocking and non-blocking operation in terms of the API | |
581 | * presented to the user. One prospect is to set the blocking mode based on | |
582 | * whether the socket passed to us was already in blocking mode. However, | |
583 | * Windows has no API for determining if a socket is in blocking mode (!), | |
584 | * therefore this cannot be done portably. Currently therefore we expose an | |
585 | * explicit API call to set this, and default to blocking mode. | |
586 | * | |
587 | * - We need to determine our initial destination UDP address. The "natural" | |
588 | * way for a user to do this is to set the peer variable on a BIO_dgram. | |
589 | * However, this has problems because BIO_dgram's peer variable is used for | |
590 | * both transmission and reception. This means it can be constantly being | |
591 | * changed to a malicious value (e.g. if some random unrelated entity on the | |
592 | * network starts sending traffic to us) on every read call. This is not a | |
593 | * direct issue because we use the 'stateless' BIO_sendmmsg and BIO_recvmmsg | |
594 | * calls only, which do not use this variable. However, we do need to let | |
595 | * the user specify the peer in a 'normal' manner. The compromise here is | |
596 | * that we grab the current peer value set at the time the write BIO is set | |
597 | * and do not read the value again. | |
598 | * | |
599 | * - We also need to support memory BIOs (e.g. BIO_dgram_pair) or custom BIOs. | |
600 | * Currently we do this by only supporting non-blocking mode. | |
601 | * | |
602 | */ | |
603 | ||
604 | /* | |
605 | * Determines what initial destination UDP address we should use, if possible. | |
606 | * If this fails the client must set the destination address manually, or use a | |
607 | * BIO which does not need a destination address. | |
608 | */ | |
609 | static int csm_analyse_init_peer_addr(BIO *net_wbio, BIO_ADDR *peer) | |
610 | { | |
75b2920a | 611 | if (BIO_dgram_get_peer(net_wbio, peer) <= 0) |
22d53c88 HL |
612 | return 0; |
613 | ||
614 | return 1; | |
615 | } | |
616 | ||
072328dd | 617 | void ossl_quic_conn_set0_net_rbio(SSL *s, BIO *net_rbio) |
22d53c88 | 618 | { |
072328dd HL |
619 | QCTX ctx; |
620 | ||
621 | if (!expect_quic(s, &ctx)) | |
622 | return; | |
623 | ||
624 | if (ctx.qc->net_rbio == net_rbio) | |
38b051a1 | 625 | return; |
38b051a1 | 626 | |
23c04709 | 627 | if (!ossl_quic_channel_set_net_rbio(ctx.qc->ch, net_rbio)) |
22d53c88 HL |
628 | return; |
629 | ||
072328dd HL |
630 | BIO_free(ctx.qc->net_rbio); |
631 | ctx.qc->net_rbio = net_rbio; | |
22d53c88 HL |
632 | |
633 | /* | |
634 | * If what we have is not pollable (e.g. a BIO_dgram_pair) disable blocking | |
635 | * mode as we do not support it for non-pollable BIOs. | |
636 | */ | |
637 | if (net_rbio != NULL) { | |
638 | BIO_POLL_DESCRIPTOR d = {0}; | |
639 | ||
640 | if (!BIO_get_rpoll_descriptor(net_rbio, &d) | |
641 | || d.type != BIO_POLL_DESCRIPTOR_TYPE_SOCK_FD) { | |
cb5c208b HL |
642 | ctx.qc->blocking = 0; |
643 | ctx.qc->default_blocking = 0; | |
072328dd | 644 | ctx.qc->can_poll_net_rbio = 0; |
22d53c88 | 645 | } else { |
072328dd | 646 | ctx.qc->can_poll_net_rbio = 1; |
22d53c88 HL |
647 | } |
648 | } | |
99e1cc7b TM |
649 | } |
650 | ||
072328dd | 651 | void ossl_quic_conn_set0_net_wbio(SSL *s, BIO *net_wbio) |
38b051a1 | 652 | { |
072328dd HL |
653 | QCTX ctx; |
654 | ||
655 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
656 | return; |
657 | ||
072328dd | 658 | if (ctx.qc->net_wbio == net_wbio) |
22d53c88 HL |
659 | return; |
660 | ||
23c04709 | 661 | if (!ossl_quic_channel_set_net_wbio(ctx.qc->ch, net_wbio)) |
072328dd HL |
662 | return; |
663 | ||
664 | BIO_free(ctx.qc->net_wbio); | |
665 | ctx.qc->net_wbio = net_wbio; | |
22d53c88 HL |
666 | |
667 | if (net_wbio != NULL) { | |
668 | BIO_POLL_DESCRIPTOR d = {0}; | |
38b051a1 | 669 | |
22d53c88 HL |
670 | if (!BIO_get_wpoll_descriptor(net_wbio, &d) |
671 | || d.type != BIO_POLL_DESCRIPTOR_TYPE_SOCK_FD) { | |
cb5c208b HL |
672 | ctx.qc->blocking = 0; |
673 | ctx.qc->default_blocking = 0; | |
072328dd | 674 | ctx.qc->can_poll_net_wbio = 0; |
22d53c88 | 675 | } else { |
072328dd | 676 | ctx.qc->can_poll_net_wbio = 1; |
22d53c88 | 677 | } |
38b051a1 | 678 | |
22d53c88 HL |
679 | /* |
680 | * If we do not have a peer address yet, and we have not started trying | |
681 | * to connect yet, try to autodetect one. | |
682 | */ | |
072328dd HL |
683 | if (BIO_ADDR_family(&ctx.qc->init_peer_addr) == AF_UNSPEC |
684 | && !ctx.qc->started) { | |
685 | if (!csm_analyse_init_peer_addr(net_wbio, &ctx.qc->init_peer_addr)) | |
22d53c88 | 686 | /* best effort */ |
072328dd | 687 | BIO_ADDR_clear(&ctx.qc->init_peer_addr); |
22d53c88 | 688 | |
23c04709 HL |
689 | ossl_quic_channel_set_peer_addr(ctx.qc->ch, |
690 | &ctx.qc->init_peer_addr); | |
22d53c88 | 691 | } |
38b051a1 | 692 | } |
22d53c88 | 693 | } |
38b051a1 | 694 | |
072328dd | 695 | BIO *ossl_quic_conn_get_net_rbio(const SSL *s) |
22d53c88 | 696 | { |
072328dd HL |
697 | QCTX ctx; |
698 | ||
699 | if (!expect_quic(s, &ctx)) | |
700 | return NULL; | |
701 | ||
702 | return ctx.qc->net_rbio; | |
38b051a1 TM |
703 | } |
704 | ||
072328dd | 705 | BIO *ossl_quic_conn_get_net_wbio(const SSL *s) |
22d53c88 | 706 | { |
072328dd HL |
707 | QCTX ctx; |
708 | ||
709 | if (!expect_quic(s, &ctx)) | |
710 | return NULL; | |
711 | ||
712 | return ctx.qc->net_wbio; | |
22d53c88 HL |
713 | } |
714 | ||
072328dd | 715 | int ossl_quic_conn_get_blocking_mode(const SSL *s) |
99e1cc7b | 716 | { |
072328dd HL |
717 | QCTX ctx; |
718 | ||
719 | if (!expect_quic(s, &ctx)) | |
720 | return 0; | |
721 | ||
cb5c208b HL |
722 | if (ctx.is_stream) |
723 | return ctx.xso->blocking; | |
724 | ||
072328dd | 725 | return ctx.qc->blocking; |
22d53c88 HL |
726 | } |
727 | ||
072328dd | 728 | int ossl_quic_conn_set_blocking_mode(SSL *s, int blocking) |
22d53c88 | 729 | { |
072328dd HL |
730 | QCTX ctx; |
731 | ||
732 | if (!expect_quic(s, &ctx)) | |
733 | return 0; | |
734 | ||
22d53c88 HL |
735 | /* Cannot enable blocking mode if we do not have pollable FDs. */ |
736 | if (blocking != 0 && | |
072328dd HL |
737 | (!ctx.qc->can_poll_net_rbio || !ctx.qc->can_poll_net_wbio)) |
738 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_UNSUPPORTED, NULL); | |
22d53c88 | 739 | |
cb5c208b HL |
740 | if (!ctx.is_stream) { |
741 | /* | |
742 | * If called on a QCSO, update default and connection-level blocking | |
743 | * modes. | |
744 | */ | |
745 | ctx.qc->blocking = (blocking != 0); | |
746 | ctx.qc->default_blocking = ctx.qc->blocking; | |
747 | } | |
748 | ||
749 | if (ctx.xso != NULL) | |
750 | /* | |
751 | * If called on a QSSO or QCSO with a default XSO, update blocking | |
752 | * mode. | |
753 | */ | |
754 | ctx.xso->blocking = (blocking != 0); | |
755 | ||
99e1cc7b TM |
756 | return 1; |
757 | } | |
758 | ||
072328dd | 759 | int ossl_quic_conn_set_initial_peer_addr(SSL *s, |
22d53c88 | 760 | const BIO_ADDR *peer_addr) |
99e1cc7b | 761 | { |
072328dd HL |
762 | QCTX ctx; |
763 | ||
764 | if (!expect_quic(s, &ctx)) | |
765 | return 0; | |
766 | ||
767 | if (ctx.qc->started) | |
768 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, | |
22d53c88 | 769 | NULL); |
38b051a1 | 770 | |
22d53c88 | 771 | if (peer_addr == NULL) { |
072328dd | 772 | BIO_ADDR_clear(&ctx.qc->init_peer_addr); |
22d53c88 HL |
773 | return 1; |
774 | } | |
38b051a1 | 775 | |
072328dd | 776 | ctx.qc->init_peer_addr = *peer_addr; |
99e1cc7b TM |
777 | return 1; |
778 | } | |
779 | ||
22d53c88 HL |
780 | /* |
781 | * QUIC Front-End I/O API: Asynchronous I/O Management | |
782 | * =================================================== | |
783 | * | |
784 | * (BIO/)SSL_tick => ossl_quic_tick | |
785 | * (BIO/)SSL_get_tick_timeout => ossl_quic_get_tick_timeout | |
786 | * (BIO/)SSL_get_poll_fd => ossl_quic_get_poll_fd | |
787 | * | |
788 | */ | |
789 | ||
790 | /* Returns 1 if the connection is being used in blocking mode. */ | |
cb5c208b | 791 | static int qc_blocking_mode(const QUIC_CONNECTION *qc) |
99e1cc7b | 792 | { |
22d53c88 HL |
793 | return qc->blocking; |
794 | } | |
38b051a1 | 795 | |
cb5c208b HL |
796 | static int xso_blocking_mode(const QUIC_XSO *xso) |
797 | { | |
798 | return xso->blocking | |
799 | && xso->conn->can_poll_net_rbio | |
800 | && xso->conn->can_poll_net_wbio; | |
801 | } | |
802 | ||
22d53c88 | 803 | /* SSL_tick; ticks the reactor. */ |
a8489257 | 804 | QUIC_TAKES_LOCK |
072328dd | 805 | int ossl_quic_tick(SSL *s) |
22d53c88 | 806 | { |
072328dd HL |
807 | QCTX ctx; |
808 | ||
809 | if (!expect_quic(s, &ctx)) | |
810 | return 0; | |
811 | ||
812 | quic_lock(ctx.qc); | |
072328dd HL |
813 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
814 | quic_unlock(ctx.qc); | |
99e1cc7b TM |
815 | return 1; |
816 | } | |
817 | ||
22d53c88 HL |
818 | /* |
819 | * SSL_get_tick_timeout. Get the time in milliseconds until the SSL object | |
820 | * should be ticked by the application by calling SSL_tick(). tv is set to 0 if | |
821 | * the object should be ticked immediately and tv->tv_sec is set to -1 if no | |
822 | * timeout is currently active. | |
823 | */ | |
a8489257 | 824 | QUIC_TAKES_LOCK |
072328dd | 825 | int ossl_quic_get_tick_timeout(SSL *s, struct timeval *tv) |
99e1cc7b | 826 | { |
072328dd | 827 | QCTX ctx; |
a1660c94 | 828 | OSSL_TIME deadline = ossl_time_infinite(); |
e44795bd | 829 | |
072328dd HL |
830 | if (!expect_quic(s, &ctx)) |
831 | return 0; | |
a8489257 | 832 | |
072328dd HL |
833 | quic_lock(ctx.qc); |
834 | ||
23c04709 HL |
835 | deadline |
836 | = ossl_quic_reactor_get_tick_deadline(ossl_quic_channel_get_reactor(ctx.qc->ch)); | |
22d53c88 HL |
837 | |
838 | if (ossl_time_is_infinite(deadline)) { | |
839 | tv->tv_sec = -1; | |
840 | tv->tv_usec = 0; | |
072328dd | 841 | quic_unlock(ctx.qc); |
22d53c88 HL |
842 | return 1; |
843 | } | |
844 | ||
a1660c94 | 845 | *tv = ossl_time_to_timeval(ossl_time_subtract(deadline, ossl_time_now())); |
072328dd | 846 | quic_unlock(ctx.qc); |
22d53c88 HL |
847 | return 1; |
848 | } | |
849 | ||
850 | /* SSL_get_rpoll_descriptor */ | |
072328dd | 851 | int ossl_quic_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
22d53c88 | 852 | { |
072328dd HL |
853 | QCTX ctx; |
854 | ||
855 | if (!expect_quic(s, &ctx)) | |
e44795bd TM |
856 | return 0; |
857 | ||
072328dd HL |
858 | if (desc == NULL || ctx.qc->net_rbio == NULL) |
859 | return 0; | |
860 | ||
861 | return BIO_get_rpoll_descriptor(ctx.qc->net_rbio, desc); | |
99e1cc7b TM |
862 | } |
863 | ||
22d53c88 | 864 | /* SSL_get_wpoll_descriptor */ |
072328dd | 865 | int ossl_quic_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
99e1cc7b | 866 | { |
072328dd HL |
867 | QCTX ctx; |
868 | ||
869 | if (!expect_quic(s, &ctx)) | |
870 | return 0; | |
871 | ||
872 | if (desc == NULL || ctx.qc->net_wbio == NULL) | |
22d53c88 HL |
873 | return 0; |
874 | ||
072328dd | 875 | return BIO_get_wpoll_descriptor(ctx.qc->net_wbio, desc); |
99e1cc7b TM |
876 | } |
877 | ||
b639475a | 878 | /* SSL_net_read_desired */ |
a8489257 | 879 | QUIC_TAKES_LOCK |
072328dd | 880 | int ossl_quic_get_net_read_desired(SSL *s) |
99e1cc7b | 881 | { |
072328dd | 882 | QCTX ctx; |
a8489257 HL |
883 | int ret; |
884 | ||
072328dd HL |
885 | if (!expect_quic(s, &ctx)) |
886 | return 0; | |
887 | ||
888 | quic_lock(ctx.qc); | |
072328dd HL |
889 | ret = ossl_quic_reactor_net_read_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
890 | quic_unlock(ctx.qc); | |
a8489257 | 891 | return ret; |
22d53c88 | 892 | } |
e44795bd | 893 | |
b639475a | 894 | /* SSL_net_write_desired */ |
a8489257 | 895 | QUIC_TAKES_LOCK |
072328dd | 896 | int ossl_quic_get_net_write_desired(SSL *s) |
22d53c88 | 897 | { |
a8489257 | 898 | int ret; |
072328dd HL |
899 | QCTX ctx; |
900 | ||
901 | if (!expect_quic(s, &ctx)) | |
902 | return 0; | |
a8489257 | 903 | |
072328dd | 904 | quic_lock(ctx.qc); |
072328dd HL |
905 | ret = ossl_quic_reactor_net_write_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
906 | quic_unlock(ctx.qc); | |
a8489257 | 907 | return ret; |
99e1cc7b TM |
908 | } |
909 | ||
22d53c88 HL |
910 | /* |
911 | * QUIC Front-End I/O API: Connection Lifecycle Operations | |
912 | * ======================================================= | |
913 | * | |
914 | * SSL_do_handshake => ossl_quic_do_handshake | |
915 | * SSL_set_connect_state => ossl_quic_set_connect_state | |
916 | * SSL_set_accept_state => ossl_quic_set_accept_state | |
917 | * SSL_shutdown => ossl_quic_shutdown | |
918 | * SSL_ctrl => ossl_quic_ctrl | |
919 | * (BIO/)SSL_connect => ossl_quic_connect | |
920 | * (BIO/)SSL_accept => ossl_quic_accept | |
921 | * | |
922 | */ | |
923 | ||
924 | /* SSL_shutdown */ | |
e8043229 | 925 | static int quic_shutdown_wait(void *arg) |
99e1cc7b | 926 | { |
e8043229 | 927 | QUIC_CONNECTION *qc = arg; |
22d53c88 | 928 | |
23c04709 | 929 | return ossl_quic_channel_is_terminated(qc->ch); |
e8043229 | 930 | } |
22d53c88 | 931 | |
a8489257 | 932 | QUIC_TAKES_LOCK |
072328dd | 933 | int ossl_quic_conn_shutdown(SSL *s, uint64_t flags, |
e8043229 HL |
934 | const SSL_SHUTDOWN_EX_ARGS *args, |
935 | size_t args_len) | |
936 | { | |
a8489257 | 937 | int ret; |
072328dd | 938 | QCTX ctx; |
a8489257 | 939 | |
072328dd HL |
940 | if (!expect_quic(s, &ctx)) |
941 | return 0; | |
942 | ||
cb5c208b HL |
943 | if (ctx.is_stream) |
944 | /* TODO(QUIC): Semantics currently undefined for QSSOs */ | |
945 | return -1; | |
946 | ||
072328dd | 947 | quic_lock(ctx.qc); |
a8489257 | 948 | |
072328dd | 949 | ossl_quic_channel_local_close(ctx.qc->ch, |
e8043229 HL |
950 | args != NULL ? args->quic_error_code : 0); |
951 | ||
1d40b151 | 952 | /* TODO(QUIC): !SSL_SHUTDOWN_FLAG_NO_STREAM_FLUSH */ |
e8043229 | 953 | |
072328dd HL |
954 | if (ossl_quic_channel_is_terminated(ctx.qc->ch)) { |
955 | quic_unlock(ctx.qc); | |
e8043229 | 956 | return 1; |
a8489257 | 957 | } |
e8043229 | 958 | |
cb5c208b | 959 | if (qc_blocking_mode(ctx.qc) && (flags & SSL_SHUTDOWN_FLAG_RAPID) == 0) |
072328dd | 960 | block_until_pred(ctx.qc, quic_shutdown_wait, ctx.qc, 0); |
e8043229 | 961 | else |
072328dd | 962 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
e8043229 | 963 | |
072328dd HL |
964 | ret = ossl_quic_channel_is_terminated(ctx.qc->ch); |
965 | quic_unlock(ctx.qc); | |
a8489257 | 966 | return ret; |
99e1cc7b TM |
967 | } |
968 | ||
22d53c88 | 969 | /* SSL_ctrl */ |
e44795bd | 970 | long ossl_quic_ctrl(SSL *s, int cmd, long larg, void *parg) |
99e1cc7b | 971 | { |
072328dd | 972 | QCTX ctx; |
38b051a1 | 973 | |
072328dd | 974 | if (!expect_quic(s, &ctx)) |
38b051a1 TM |
975 | return 0; |
976 | ||
22d53c88 HL |
977 | switch (cmd) { |
978 | case SSL_CTRL_MODE: | |
cb5c208b HL |
979 | /* If called on a QCSO, update the default mode. */ |
980 | if (!ctx.is_stream) | |
981 | ctx.qc->default_ssl_mode |= (uint32_t)larg; | |
982 | ||
983 | /* | |
984 | * If we were called on a QSSO or have a default stream, we also update | |
985 | * that. | |
986 | */ | |
987 | if (ctx.xso != NULL) { | |
988 | /* Cannot enable EPW while AON write in progress. */ | |
989 | if (ctx.xso->aon_write_in_progress) | |
990 | larg &= ~SSL_MODE_ENABLE_PARTIAL_WRITE; | |
991 | ||
992 | ctx.xso->ssl_mode |= (uint32_t)larg; | |
993 | return ctx.xso->ssl_mode; | |
994 | } | |
dfc227bd | 995 | |
cb5c208b | 996 | return ctx.qc->default_ssl_mode; |
22d53c88 | 997 | case SSL_CTRL_CLEAR_MODE: |
cb5c208b HL |
998 | if (!ctx.is_stream) |
999 | ctx.qc->default_ssl_mode &= ~(uint32_t)larg; | |
1000 | ||
1001 | if (ctx.xso != NULL) { | |
1002 | ctx.xso->ssl_mode &= ~(uint32_t)larg; | |
1003 | return ctx.xso->ssl_mode; | |
1004 | } | |
1005 | ||
1006 | return ctx.qc->default_ssl_mode; | |
22d53c88 | 1007 | default: |
f8ffab0d | 1008 | /* Probably a TLS related ctrl. Defer to our internal SSL object */ |
072328dd | 1009 | return SSL_ctrl(ctx.qc->tls, cmd, larg, parg); |
08e49012 | 1010 | } |
22d53c88 HL |
1011 | } |
1012 | ||
1013 | /* SSL_set_connect_state */ | |
072328dd | 1014 | void ossl_quic_set_connect_state(SSL *s) |
22d53c88 | 1015 | { |
072328dd HL |
1016 | QCTX ctx; |
1017 | ||
1018 | if (!expect_quic(s, &ctx)) | |
1019 | return; | |
1020 | ||
22d53c88 | 1021 | /* Cannot be changed after handshake started */ |
cb5c208b | 1022 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1023 | return; |
1024 | ||
dfb9ae14 | 1025 | ctx.qc->as_server_state = 0; |
22d53c88 HL |
1026 | } |
1027 | ||
1028 | /* SSL_set_accept_state */ | |
072328dd | 1029 | void ossl_quic_set_accept_state(SSL *s) |
22d53c88 | 1030 | { |
072328dd HL |
1031 | QCTX ctx; |
1032 | ||
1033 | if (!expect_quic(s, &ctx)) | |
1034 | return; | |
1035 | ||
22d53c88 | 1036 | /* Cannot be changed after handshake started */ |
cb5c208b | 1037 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1038 | return; |
1039 | ||
dfb9ae14 | 1040 | ctx.qc->as_server_state = 1; |
22d53c88 HL |
1041 | } |
1042 | ||
1043 | /* SSL_do_handshake */ | |
1044 | struct quic_handshake_wait_args { | |
1045 | QUIC_CONNECTION *qc; | |
1046 | }; | |
1047 | ||
1048 | static int quic_handshake_wait(void *arg) | |
1049 | { | |
1050 | struct quic_handshake_wait_args *args = arg; | |
1051 | ||
1052 | if (!ossl_quic_channel_is_active(args->qc->ch)) | |
1053 | return -1; | |
1054 | ||
1055 | if (ossl_quic_channel_is_handshake_complete(args->qc->ch)) | |
1056 | return 1; | |
1057 | ||
99e1cc7b TM |
1058 | return 0; |
1059 | } | |
1060 | ||
22d53c88 | 1061 | static int configure_channel(QUIC_CONNECTION *qc) |
99e1cc7b | 1062 | { |
22d53c88 | 1063 | assert(qc->ch != NULL); |
08e49012 | 1064 | |
d1ac77b1 HL |
1065 | if (!ossl_quic_channel_set_net_rbio(qc->ch, qc->net_rbio) |
1066 | || !ossl_quic_channel_set_net_wbio(qc->ch, qc->net_wbio) | |
22d53c88 HL |
1067 | || !ossl_quic_channel_set_peer_addr(qc->ch, &qc->init_peer_addr)) |
1068 | return 0; | |
1069 | ||
1070 | return 1; | |
1071 | } | |
1072 | ||
4847599b | 1073 | QUIC_NEEDS_LOCK |
23c04709 | 1074 | static int create_channel(QUIC_CONNECTION *qc) |
22d53c88 HL |
1075 | { |
1076 | QUIC_CHANNEL_ARGS args = {0}; | |
1077 | ||
22d53c88 HL |
1078 | args.libctx = qc->ssl.ctx->libctx; |
1079 | args.propq = qc->ssl.ctx->propq; | |
23c04709 | 1080 | args.is_server = qc->as_server; |
2723d705 | 1081 | args.tls = qc->tls; |
ffce2946 | 1082 | args.mutex = qc->mutex; |
b212d554 HL |
1083 | args.now_cb = qc->override_now_cb; |
1084 | args.now_cb_arg = qc->override_now_cb_arg; | |
22d53c88 HL |
1085 | |
1086 | qc->ch = ossl_quic_channel_new(&args); | |
1087 | if (qc->ch == NULL) | |
1088 | return 0; | |
1089 | ||
e8043229 HL |
1090 | return 1; |
1091 | } | |
1092 | ||
1093 | /* | |
1094 | * Creates a channel and configures it with the information we have accumulated | |
1095 | * via calls made to us from the application prior to starting a handshake | |
1096 | * attempt. | |
1097 | */ | |
4847599b | 1098 | QUIC_NEEDS_LOCK |
23c04709 | 1099 | static int ensure_channel_started(QUIC_CONNECTION *qc) |
e8043229 | 1100 | { |
ffce2946 | 1101 | if (!qc->started) { |
ffce2946 HL |
1102 | if (!configure_channel(qc) |
1103 | || !ossl_quic_channel_start(qc->ch)) | |
1104 | goto err; | |
f2f7c4f1 | 1105 | |
ffce2946 HL |
1106 | if (qc->is_thread_assisted) |
1107 | if (!ossl_quic_thread_assist_init_start(&qc->thread_assist, qc->ch)) | |
1108 | goto err; | |
1109 | } | |
1110 | ||
22d53c88 HL |
1111 | qc->started = 1; |
1112 | return 1; | |
f2f7c4f1 HL |
1113 | |
1114 | err: | |
1115 | ossl_quic_channel_free(qc->ch); | |
1116 | qc->ch = NULL; | |
1117 | return 0; | |
99e1cc7b TM |
1118 | } |
1119 | ||
4a530180 HL |
1120 | QUIC_NEEDS_LOCK |
1121 | static int quic_do_handshake(QUIC_CONNECTION *qc) | |
99e1cc7b | 1122 | { |
22d53c88 HL |
1123 | int ret; |
1124 | ||
23c04709 | 1125 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
ca41f6b7 | 1126 | /* Handshake already completed. */ |
4a530180 | 1127 | return 1; |
ca41f6b7 | 1128 | |
23c04709 | 1129 | if (ossl_quic_channel_is_term_any(qc->ch)) |
4a530180 | 1130 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 1131 | |
ca41f6b7 | 1132 | if (BIO_ADDR_family(&qc->init_peer_addr) == AF_UNSPEC) { |
22d53c88 | 1133 | /* Peer address must have been set. */ |
44a1ac5d | 1134 | QUIC_RAISE_NON_NORMAL_ERROR(qc, SSL_R_REMOTE_PEER_ADDRESS_NOT_SET, NULL); |
4a530180 | 1135 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1136 | } |
22d53c88 | 1137 | |
dfb9ae14 | 1138 | if (qc->as_server != qc->as_server_state) { |
23c04709 | 1139 | /* TODO(QUIC): Must match the method used to create the QCSO */ |
ca41f6b7 | 1140 | QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
4a530180 | 1141 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1142 | } |
22d53c88 | 1143 | |
ca41f6b7 | 1144 | if (qc->net_rbio == NULL || qc->net_wbio == NULL) { |
22d53c88 | 1145 | /* Need read and write BIOs. */ |
44a1ac5d | 1146 | QUIC_RAISE_NON_NORMAL_ERROR(qc, SSL_R_BIO_NOT_SET, NULL); |
4a530180 | 1147 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1148 | } |
22d53c88 HL |
1149 | |
1150 | /* | |
1151 | * Start connection process. Note we may come here multiple times in | |
1152 | * non-blocking mode, which is fine. | |
1153 | */ | |
23c04709 | 1154 | if (!ensure_channel_started(qc)) { |
ca41f6b7 | 1155 | QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); |
4a530180 | 1156 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1157 | } |
22d53c88 | 1158 | |
4a530180 | 1159 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
22d53c88 | 1160 | /* The handshake is now done. */ |
4a530180 | 1161 | return 1; |
22d53c88 | 1162 | |
cb5c208b | 1163 | if (qc_blocking_mode(qc)) { |
22d53c88 HL |
1164 | /* In blocking mode, wait for the handshake to complete. */ |
1165 | struct quic_handshake_wait_args args; | |
1166 | ||
1167 | args.qc = qc; | |
1168 | ||
1169 | ret = block_until_pred(qc, quic_handshake_wait, &args, 0); | |
ca41f6b7 HL |
1170 | if (!ossl_quic_channel_is_active(qc->ch)) { |
1171 | QUIC_RAISE_NON_NORMAL_ERROR(qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
4a530180 | 1172 | return 0; /* Shutdown before completion */ |
ca41f6b7 HL |
1173 | } else if (ret <= 0) { |
1174 | QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
4a530180 | 1175 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1176 | } |
22d53c88 HL |
1177 | |
1178 | assert(ossl_quic_channel_is_handshake_complete(qc->ch)); | |
4a530180 | 1179 | return 1; |
22d53c88 | 1180 | } else { |
ca41f6b7 | 1181 | /* Try to advance the reactor. */ |
ccd31037 | 1182 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); |
ca41f6b7 | 1183 | |
4a530180 | 1184 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
ca41f6b7 | 1185 | /* The handshake is now done. */ |
4a530180 | 1186 | return 1; |
ca41f6b7 | 1187 | |
22d53c88 | 1188 | /* Otherwise, indicate that the handshake isn't done yet. */ |
ca41f6b7 | 1189 | QUIC_RAISE_NORMAL_ERROR(qc, SSL_ERROR_WANT_READ); |
4a530180 | 1190 | return -1; /* Non-protocol error */ |
22d53c88 | 1191 | } |
4a530180 | 1192 | } |
a8489257 | 1193 | |
4a530180 | 1194 | QUIC_TAKES_LOCK |
072328dd | 1195 | int ossl_quic_do_handshake(SSL *s) |
4a530180 HL |
1196 | { |
1197 | int ret; | |
072328dd | 1198 | QCTX ctx; |
4a530180 | 1199 | |
072328dd HL |
1200 | if (!expect_quic(s, &ctx)) |
1201 | return 0; | |
1202 | ||
1203 | quic_lock(ctx.qc); | |
4a530180 | 1204 | |
072328dd HL |
1205 | ret = quic_do_handshake(ctx.qc); |
1206 | quic_unlock(ctx.qc); | |
a8489257 | 1207 | return ret; |
99e1cc7b TM |
1208 | } |
1209 | ||
22d53c88 HL |
1210 | /* SSL_connect */ |
1211 | int ossl_quic_connect(SSL *s) | |
99e1cc7b | 1212 | { |
22d53c88 | 1213 | /* Ensure we are in connect state (no-op if non-idle). */ |
072328dd | 1214 | ossl_quic_set_connect_state(s); |
22d53c88 HL |
1215 | |
1216 | /* Begin or continue the handshake */ | |
072328dd | 1217 | return ossl_quic_do_handshake(s); |
99e1cc7b TM |
1218 | } |
1219 | ||
22d53c88 HL |
1220 | /* SSL_accept */ |
1221 | int ossl_quic_accept(SSL *s) | |
99e1cc7b | 1222 | { |
22d53c88 | 1223 | /* Ensure we are in accept state (no-op if non-idle). */ |
072328dd | 1224 | ossl_quic_set_accept_state(s); |
22d53c88 HL |
1225 | |
1226 | /* Begin or continue the handshake */ | |
072328dd | 1227 | return ossl_quic_do_handshake(s); |
99e1cc7b | 1228 | } |
e44795bd | 1229 | |
cb5c208b HL |
1230 | /* |
1231 | * QUIC Front-End I/O API: Stream Lifecycle Operations | |
1232 | * =================================================== | |
1233 | * | |
1234 | * SSL_stream_new => ossl_quic_conn_stream_new | |
1235 | * | |
1236 | */ | |
21c80696 HL |
1237 | |
1238 | /* | |
1239 | * Try to create the default XSO if it doesn't already exist. Returns 1 if the | |
1240 | * default XSO was created. Returns 0 if it was not (e.g. because it already | |
1241 | * exists). Note that this is NOT an error condition. | |
1242 | */ | |
1243 | QUIC_NEEDS_LOCK | |
8b7be3aa | 1244 | static int qc_try_create_default_xso_for_write(QUIC_CONNECTION *qc) |
21c80696 | 1245 | { |
8b7be3aa | 1246 | uint64_t flags = 0; |
21c80696 | 1247 | |
8b7be3aa HL |
1248 | if (qc->default_xso_created |
1249 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
21c80696 HL |
1250 | /* |
1251 | * We only do this once. If the user detaches a previously created | |
1252 | * default XSO we don't auto-create another one. | |
1253 | */ | |
8b7be3aa | 1254 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, SSL_R_NO_STREAM, NULL); |
21c80696 | 1255 | |
8b7be3aa HL |
1256 | /* Create a locally-initiated stream. */ |
1257 | if (qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_AUTO_UNI) | |
1258 | flags |= SSL_STREAM_FLAG_UNI; | |
1259 | ||
13ac037d HL |
1260 | qc_set_default_xso(qc, (QUIC_XSO *)quic_conn_stream_new(qc, flags, |
1261 | /*needs_lock=*/0), | |
995ff282 | 1262 | /*touch=*/0); |
8b7be3aa HL |
1263 | if (qc->default_xso == NULL) |
1264 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
1265 | ||
995ff282 | 1266 | qc_touch_default_xso(qc); |
8b7be3aa HL |
1267 | return 1; |
1268 | } | |
1269 | ||
1270 | struct quic_wait_for_stream_args { | |
1271 | QUIC_CONNECTION *qc; | |
1272 | QUIC_STREAM *qs; | |
1273 | uint64_t expect_id; | |
1274 | }; | |
1275 | ||
1276 | QUIC_NEEDS_LOCK | |
1277 | static int quic_wait_for_stream(void *arg) | |
1278 | { | |
1279 | struct quic_wait_for_stream_args *args = arg; | |
1280 | ||
1281 | if (!ossl_quic_channel_is_active(args->qc->ch)) { | |
1282 | /* If connection is torn down due to an error while blocking, stop. */ | |
1283 | QUIC_RAISE_NON_NORMAL_ERROR(args->qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
1284 | return -1; | |
1285 | } | |
1286 | ||
1287 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
acc6fde0 HL |
1288 | args->expect_id | QUIC_STREAM_DIR_BIDI); |
1289 | if (args->qs == NULL) | |
1290 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
1291 | args->expect_id | QUIC_STREAM_DIR_UNI); | |
1292 | ||
8b7be3aa HL |
1293 | if (args->qs != NULL) |
1294 | return 1; /* stream now exists */ | |
1295 | ||
1296 | return 0; /* did not get a stream, keep trying */ | |
1297 | } | |
1298 | ||
1299 | QUIC_NEEDS_LOCK | |
1300 | static int qc_wait_for_default_xso_for_read(QUIC_CONNECTION *qc) | |
1301 | { | |
1302 | /* Called on a QCSO and we don't currently have a default stream. */ | |
1303 | uint64_t expect_id; | |
1304 | QUIC_STREAM *qs; | |
1305 | int res; | |
1306 | struct quic_wait_for_stream_args wargs; | |
1307 | ||
1308 | /* | |
1309 | * If default stream functionality is disabled or we already detached | |
1310 | * one, don't make another default stream and just fail. | |
1311 | */ | |
1312 | if (qc->default_xso_created | |
1313 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
1314 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, SSL_R_NO_STREAM, NULL); | |
1315 | ||
1316 | /* | |
1317 | * The peer may have opened a stream since we last ticked. So tick and | |
1318 | * see if the stream with ordinal 0 (remote, bidi/uni based on stream | |
1319 | * mode) exists yet. QUIC stream IDs must be allocated in order, so the | |
1320 | * first stream created by a peer must have an ordinal of 0. | |
1321 | */ | |
1322 | expect_id = qc->as_server | |
1323 | ? QUIC_STREAM_INITIATOR_CLIENT | |
1324 | : QUIC_STREAM_INITIATOR_SERVER; | |
1325 | ||
8b7be3aa | 1326 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), |
acc6fde0 HL |
1327 | expect_id | QUIC_STREAM_DIR_BIDI); |
1328 | if (qs == NULL) | |
1329 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1330 | expect_id | QUIC_STREAM_DIR_UNI); | |
1331 | ||
8b7be3aa HL |
1332 | if (qs == NULL) { |
1333 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1334 | ||
1335 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1336 | expect_id); | |
1337 | } | |
1338 | ||
1339 | if (qs == NULL) { | |
1340 | if (!qc_blocking_mode(qc)) | |
1341 | /* Non-blocking mode, so just bail immediately. */ | |
1342 | return QUIC_RAISE_NORMAL_ERROR(qc, SSL_ERROR_WANT_READ); | |
1343 | ||
1344 | /* Block until we have a stream. */ | |
1345 | wargs.qc = qc; | |
1346 | wargs.qs = NULL; | |
1347 | wargs.expect_id = expect_id; | |
1348 | ||
1349 | res = block_until_pred(qc, quic_wait_for_stream, &wargs, 0); | |
1350 | if (res == 0) | |
1351 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
1352 | else if (res < 0 || wargs.qs == NULL) | |
1353 | /* quic_wait_for_stream raised error here */ | |
21c80696 | 1354 | return 0; |
8b7be3aa HL |
1355 | |
1356 | qs = wargs.qs; | |
21c80696 HL |
1357 | } |
1358 | ||
8b7be3aa HL |
1359 | /* |
1360 | * We now have qs != NULL. Make it the default stream, creating the | |
1361 | * necessary XSO. | |
1362 | */ | |
995ff282 | 1363 | qc_set_default_xso(qc, create_xso_from_stream(qc, qs), /*touch=*/0); |
8b7be3aa HL |
1364 | if (qc->default_xso == NULL) |
1365 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
1366 | ||
995ff282 | 1367 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
21c80696 HL |
1368 | return 1; |
1369 | } | |
1370 | ||
1371 | QUIC_NEEDS_LOCK | |
1372 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs) | |
1373 | { | |
1374 | QUIC_XSO *xso = NULL; | |
1375 | ||
1376 | if ((xso = OPENSSL_zalloc(sizeof(*xso))) == NULL) | |
1377 | goto err; | |
1378 | ||
1379 | if (!ossl_ssl_init(&xso->ssl, qc->ssl.ctx, qc->ssl.method, SSL_TYPE_QUIC_XSO)) | |
1380 | goto err; | |
1381 | ||
9cab4bd5 HL |
1382 | /* XSO refs QC */ |
1383 | if (!SSL_up_ref(&qc->ssl)) | |
1384 | goto err; | |
1385 | ||
21c80696 HL |
1386 | xso->conn = qc; |
1387 | xso->blocking = qc->default_blocking; | |
1388 | xso->ssl_mode = qc->default_ssl_mode; | |
1389 | ||
1390 | xso->stream = qs; | |
1391 | ||
1392 | ++qc->num_xso; | |
1393 | return xso; | |
1394 | ||
1395 | err: | |
1396 | OPENSSL_free(xso); | |
1397 | return NULL; | |
1398 | } | |
1399 | ||
13ac037d HL |
1400 | /* locking depends on need_lock */ |
1401 | static SSL *quic_conn_stream_new(QUIC_CONNECTION *qc, uint64_t flags, | |
1402 | int need_lock) | |
cb5c208b | 1403 | { |
cb5c208b | 1404 | QUIC_XSO *xso = NULL; |
21c80696 | 1405 | QUIC_STREAM *qs = NULL; |
2dbc39de | 1406 | int is_uni = ((flags & SSL_STREAM_FLAG_UNI) != 0); |
cb5c208b | 1407 | |
13ac037d HL |
1408 | if (need_lock) |
1409 | quic_lock(qc); | |
2dbc39de | 1410 | |
13ac037d HL |
1411 | if (ossl_quic_channel_is_term_any(qc->ch)) { |
1412 | QUIC_RAISE_NON_NORMAL_ERROR(qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
2dbc39de HL |
1413 | goto err; |
1414 | } | |
1415 | ||
13ac037d | 1416 | qs = ossl_quic_channel_new_stream_local(qc->ch, is_uni); |
21c80696 | 1417 | if (qs == NULL) |
2dbc39de | 1418 | goto err; |
cb5c208b | 1419 | |
13ac037d | 1420 | xso = create_xso_from_stream(qc, qs); |
21c80696 | 1421 | if (xso == NULL) |
cb5c208b HL |
1422 | goto err; |
1423 | ||
13ac037d HL |
1424 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
1425 | if (need_lock) | |
1426 | quic_unlock(qc); | |
1427 | ||
cb5c208b HL |
1428 | return &xso->ssl; |
1429 | ||
1430 | err: | |
1431 | OPENSSL_free(xso); | |
13ac037d HL |
1432 | ossl_quic_stream_map_release(ossl_quic_channel_get_qsm(qc->ch), qs); |
1433 | if (need_lock) | |
1434 | quic_unlock(qc); | |
1435 | ||
cb5c208b | 1436 | return NULL; |
13ac037d HL |
1437 | |
1438 | } | |
1439 | ||
1440 | QUIC_TAKES_LOCK | |
1441 | SSL *ossl_quic_conn_stream_new(SSL *s, uint64_t flags) | |
1442 | { | |
1443 | QCTX ctx; | |
1444 | ||
1445 | if (!expect_quic_conn_only(s, &ctx)) | |
1446 | return NULL; | |
1447 | ||
1448 | return quic_conn_stream_new(ctx.qc, flags, /*need_lock=*/1); | |
cb5c208b HL |
1449 | } |
1450 | ||
22d53c88 HL |
1451 | /* |
1452 | * QUIC Front-End I/O API: Steady-State Operations | |
1453 | * =============================================== | |
1454 | * | |
1455 | * Here we dispatch calls to the steady-state front-end I/O API functions; that | |
1456 | * is, the functions used during the established phase of a QUIC connection | |
1457 | * (e.g. SSL_read, SSL_write). | |
1458 | * | |
1459 | * Each function must handle both blocking and non-blocking modes. As discussed | |
1460 | * above, all QUIC I/O is implemented using non-blocking mode internally. | |
1461 | * | |
1462 | * SSL_get_error => partially implemented by ossl_quic_get_error | |
1463 | * (BIO/)SSL_read => ossl_quic_read | |
1464 | * (BIO/)SSL_write => ossl_quic_write | |
1465 | * SSL_pending => ossl_quic_pending | |
a9979965 | 1466 | * SSL_stream_conclude => ossl_quic_conn_stream_conclude |
22d53c88 HL |
1467 | */ |
1468 | ||
1469 | /* SSL_get_error */ | |
072328dd | 1470 | int ossl_quic_get_error(const SSL *s, int i) |
e44795bd | 1471 | { |
072328dd HL |
1472 | QCTX ctx; |
1473 | ||
1474 | if (!expect_quic(s, &ctx)) | |
1475 | return 0; | |
1476 | ||
1477 | return ctx.qc->last_error; | |
e44795bd TM |
1478 | } |
1479 | ||
22d53c88 HL |
1480 | /* |
1481 | * SSL_write | |
1482 | * --------- | |
1483 | * | |
1484 | * The set of functions below provide the implementation of the public SSL_write | |
1485 | * function. We must handle: | |
1486 | * | |
1487 | * - both blocking and non-blocking operation at the application level, | |
1488 | * depending on how we are configured; | |
1489 | * | |
1490 | * - SSL_MODE_ENABLE_PARTIAL_WRITE being on or off; | |
1491 | * | |
1492 | * - SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER. | |
1493 | * | |
1494 | */ | |
4847599b | 1495 | QUIC_NEEDS_LOCK |
cb5c208b | 1496 | static void quic_post_write(QUIC_XSO *xso, int did_append, int do_tick) |
22d53c88 HL |
1497 | { |
1498 | /* | |
1499 | * We have appended at least one byte to the stream. | |
1500 | * Potentially mark stream as active, depending on FC. | |
1501 | */ | |
1502 | if (did_append) | |
cb5c208b HL |
1503 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(xso->conn->ch), |
1504 | xso->stream); | |
22d53c88 HL |
1505 | |
1506 | /* | |
1507 | * Try and send. | |
1508 | * | |
1509 | * TODO(QUIC): It is probably inefficient to try and do this immediately, | |
1510 | * plus we should eventually consider Nagle's algorithm. | |
1511 | */ | |
1512 | if (do_tick) | |
cb5c208b | 1513 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(xso->conn->ch), 0); |
22d53c88 HL |
1514 | } |
1515 | ||
1516 | struct quic_write_again_args { | |
cb5c208b | 1517 | QUIC_XSO *xso; |
22d53c88 HL |
1518 | const unsigned char *buf; |
1519 | size_t len; | |
1520 | size_t total_written; | |
1521 | }; | |
1522 | ||
4847599b | 1523 | QUIC_NEEDS_LOCK |
22d53c88 HL |
1524 | static int quic_write_again(void *arg) |
1525 | { | |
1526 | struct quic_write_again_args *args = arg; | |
1527 | size_t actual_written = 0; | |
1528 | ||
cb5c208b | 1529 | if (!ossl_quic_channel_is_active(args->xso->conn->ch)) |
22d53c88 HL |
1530 | /* If connection is torn down due to an error while blocking, stop. */ |
1531 | return -2; | |
1532 | ||
cb5c208b | 1533 | if (!ossl_quic_sstream_append(args->xso->stream->sstream, |
22d53c88 HL |
1534 | args->buf, args->len, &actual_written)) |
1535 | return -2; | |
1536 | ||
cb5c208b | 1537 | quic_post_write(args->xso, actual_written > 0, 0); |
22d53c88 HL |
1538 | |
1539 | args->buf += actual_written; | |
1540 | args->len -= actual_written; | |
1541 | args->total_written += actual_written; | |
1542 | ||
3f0c310b | 1543 | if (args->len == 0) |
22d53c88 HL |
1544 | /* Written everything, done. */ |
1545 | return 1; | |
1546 | ||
1547 | /* Not written everything yet, keep trying. */ | |
1548 | return 0; | |
1549 | } | |
1550 | ||
4847599b | 1551 | QUIC_NEEDS_LOCK |
cb5c208b | 1552 | static int quic_write_blocking(QUIC_XSO *xso, const void *buf, size_t len, |
22d53c88 | 1553 | size_t *written) |
e44795bd | 1554 | { |
22d53c88 HL |
1555 | int res; |
1556 | struct quic_write_again_args args; | |
1557 | size_t actual_written = 0; | |
1558 | ||
1559 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 1560 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, |
22d53c88 HL |
1561 | &actual_written)) { |
1562 | /* Stream already finished or allocation error. */ | |
1563 | *written = 0; | |
cb5c208b | 1564 | return QUIC_RAISE_NON_NORMAL_ERROR(xso->conn, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
1565 | } |
1566 | ||
cb5c208b | 1567 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
1568 | |
1569 | if (actual_written == len) { | |
1570 | /* Managed to append everything on the first try. */ | |
1571 | *written = actual_written; | |
1572 | return 1; | |
1573 | } | |
1574 | ||
1575 | /* | |
1576 | * We did not manage to append all of the data immediately, so the stream | |
1577 | * buffer has probably filled up. This means we need to block until some of | |
1578 | * it is freed up. | |
1579 | */ | |
cb5c208b | 1580 | args.xso = xso; |
22d53c88 HL |
1581 | args.buf = (const unsigned char *)buf + actual_written; |
1582 | args.len = len - actual_written; | |
1583 | args.total_written = 0; | |
1584 | ||
cb5c208b | 1585 | res = block_until_pred(xso->conn, quic_write_again, &args, 0); |
22d53c88 | 1586 | if (res <= 0) { |
cb5c208b HL |
1587 | if (!ossl_quic_channel_is_active(xso->conn->ch)) |
1588 | return QUIC_RAISE_NON_NORMAL_ERROR(xso->conn, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
22d53c88 | 1589 | else |
cb5c208b | 1590 | return QUIC_RAISE_NON_NORMAL_ERROR(xso->conn, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
1591 | } |
1592 | ||
1593 | *written = args.total_written; | |
e44795bd TM |
1594 | return 1; |
1595 | } | |
1596 | ||
ca41f6b7 HL |
1597 | /* |
1598 | * Functions to manage All-or-Nothing (AON) (that is, non-ENABLE_PARTIAL_WRITE) | |
1599 | * write semantics. | |
1600 | */ | |
cb5c208b | 1601 | static void aon_write_begin(QUIC_XSO *xso, const unsigned char *buf, |
22d53c88 HL |
1602 | size_t buf_len, size_t already_sent) |
1603 | { | |
cb5c208b | 1604 | assert(!xso->aon_write_in_progress); |
22d53c88 | 1605 | |
cb5c208b HL |
1606 | xso->aon_write_in_progress = 1; |
1607 | xso->aon_buf_base = buf; | |
1608 | xso->aon_buf_pos = already_sent; | |
1609 | xso->aon_buf_len = buf_len; | |
22d53c88 HL |
1610 | } |
1611 | ||
cb5c208b | 1612 | static void aon_write_finish(QUIC_XSO *xso) |
22d53c88 | 1613 | { |
cb5c208b HL |
1614 | xso->aon_write_in_progress = 0; |
1615 | xso->aon_buf_base = NULL; | |
1616 | xso->aon_buf_pos = 0; | |
1617 | xso->aon_buf_len = 0; | |
22d53c88 HL |
1618 | } |
1619 | ||
4847599b | 1620 | QUIC_NEEDS_LOCK |
cb5c208b | 1621 | static int quic_write_nonblocking_aon(QUIC_XSO *xso, const void *buf, |
22d53c88 | 1622 | size_t len, size_t *written) |
e44795bd | 1623 | { |
22d53c88 HL |
1624 | const void *actual_buf; |
1625 | size_t actual_len, actual_written = 0; | |
1626 | int accept_moving_buffer | |
cb5c208b | 1627 | = ((xso->ssl_mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER) != 0); |
22d53c88 | 1628 | |
cb5c208b | 1629 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
1630 | /* |
1631 | * We are in the middle of an AON write (i.e., a previous write did not | |
75b2920a HL |
1632 | * manage to append all data to the SSTREAM and we have Enable Partial |
1633 | * Write (EPW) mode disabled.) | |
22d53c88 | 1634 | */ |
cb5c208b HL |
1635 | if ((!accept_moving_buffer && xso->aon_buf_base != buf) |
1636 | || len != xso->aon_buf_len) | |
22d53c88 HL |
1637 | /* |
1638 | * Pointer must not have changed if we are not in accept moving | |
1639 | * buffer mode. Length must never change. | |
1640 | */ | |
cb5c208b | 1641 | return QUIC_RAISE_NON_NORMAL_ERROR(xso->conn, SSL_R_BAD_WRITE_RETRY, NULL); |
22d53c88 | 1642 | |
cb5c208b HL |
1643 | actual_buf = (unsigned char *)buf + xso->aon_buf_pos; |
1644 | actual_len = len - xso->aon_buf_pos; | |
22d53c88 HL |
1645 | assert(actual_len > 0); |
1646 | } else { | |
1647 | actual_buf = buf; | |
1648 | actual_len = len; | |
1649 | } | |
1650 | ||
1651 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 1652 | if (!ossl_quic_sstream_append(xso->stream->sstream, actual_buf, actual_len, |
22d53c88 HL |
1653 | &actual_written)) { |
1654 | /* Stream already finished or allocation error. */ | |
1655 | *written = 0; | |
cb5c208b | 1656 | return QUIC_RAISE_NON_NORMAL_ERROR(xso->conn, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
1657 | } |
1658 | ||
cb5c208b | 1659 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
1660 | |
1661 | if (actual_written == actual_len) { | |
1662 | /* We have sent everything. */ | |
cb5c208b | 1663 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
1664 | /* |
1665 | * We have sent everything, and we were in the middle of an AON | |
1666 | * write. The output write length is the total length of the AON | |
1667 | * buffer, not however many bytes we managed to write to the stream | |
1668 | * in this call. | |
1669 | */ | |
cb5c208b HL |
1670 | *written = xso->aon_buf_len; |
1671 | aon_write_finish(xso); | |
22d53c88 HL |
1672 | } else { |
1673 | *written = actual_written; | |
1674 | } | |
1675 | ||
1676 | return 1; | |
1677 | } | |
1678 | ||
cb5c208b | 1679 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
1680 | /* |
1681 | * AON write is in progress but we have not written everything yet. We | |
1682 | * may have managed to send zero bytes, or some number of bytes less | |
1683 | * than the total remaining which need to be appended during this | |
1684 | * AON operation. | |
1685 | */ | |
cb5c208b HL |
1686 | xso->aon_buf_pos += actual_written; |
1687 | assert(xso->aon_buf_pos < xso->aon_buf_len); | |
1688 | return QUIC_RAISE_NORMAL_ERROR(xso->conn, SSL_ERROR_WANT_WRITE); | |
22d53c88 HL |
1689 | } |
1690 | ||
08e49012 | 1691 | /* |
22d53c88 HL |
1692 | * Not in an existing AON operation but partial write is not enabled, so we |
1693 | * need to begin a new AON operation. However we needn't bother if we didn't | |
1694 | * actually append anything. | |
08e49012 | 1695 | */ |
22d53c88 | 1696 | if (actual_written > 0) |
cb5c208b | 1697 | aon_write_begin(xso, buf, len, actual_written); |
e44795bd | 1698 | |
22d53c88 HL |
1699 | /* |
1700 | * AON - We do not publicly admit to having appended anything until AON | |
1701 | * completes. | |
1702 | */ | |
1703 | *written = 0; | |
cb5c208b | 1704 | return QUIC_RAISE_NORMAL_ERROR(xso->conn, SSL_ERROR_WANT_WRITE); |
e44795bd TM |
1705 | } |
1706 | ||
4847599b | 1707 | QUIC_NEEDS_LOCK |
cb5c208b | 1708 | static int quic_write_nonblocking_epw(QUIC_XSO *xso, const void *buf, size_t len, |
22d53c88 | 1709 | size_t *written) |
e44795bd | 1710 | { |
22d53c88 | 1711 | /* Simple best effort operation. */ |
cb5c208b | 1712 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, written)) { |
22d53c88 HL |
1713 | /* Stream already finished or allocation error. */ |
1714 | *written = 0; | |
cb5c208b | 1715 | return QUIC_RAISE_NON_NORMAL_ERROR(xso->conn, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
1716 | } |
1717 | ||
cb5c208b | 1718 | quic_post_write(xso, *written > 0, 1); |
e44795bd TM |
1719 | return 1; |
1720 | } | |
d5ab48a1 | 1721 | |
a8489257 | 1722 | QUIC_TAKES_LOCK |
22d53c88 | 1723 | int ossl_quic_write(SSL *s, const void *buf, size_t len, size_t *written) |
d5ab48a1 | 1724 | { |
a8489257 | 1725 | int ret; |
072328dd HL |
1726 | QCTX ctx; |
1727 | int partial_write; | |
22d53c88 HL |
1728 | |
1729 | *written = 0; | |
1730 | ||
8b7be3aa HL |
1731 | if (len == 0) |
1732 | return 1; | |
22d53c88 | 1733 | |
8b7be3aa HL |
1734 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, &ctx)) |
1735 | return 0; | |
a8489257 | 1736 | |
cb5c208b | 1737 | partial_write = ((ctx.xso->ssl_mode & SSL_MODE_ENABLE_PARTIAL_WRITE) != 0); |
072328dd | 1738 | |
23c04709 | 1739 | if (ossl_quic_channel_is_term_any(ctx.qc->ch)) { |
072328dd | 1740 | ret = QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
1741 | goto out; |
1742 | } | |
22d53c88 | 1743 | |
ca41f6b7 HL |
1744 | /* |
1745 | * If we haven't finished the handshake, try to advance it. | |
1746 | * We don't accept writes until the handshake is completed. | |
1747 | */ | |
072328dd | 1748 | if (quic_do_handshake(ctx.qc) < 1) { |
a8489257 HL |
1749 | ret = 0; |
1750 | goto out; | |
1751 | } | |
ca41f6b7 | 1752 | |
cb5c208b | 1753 | if (ctx.xso->stream == NULL || ctx.xso->stream->sstream == NULL) { |
072328dd | 1754 | ret = QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 HL |
1755 | goto out; |
1756 | } | |
22d53c88 | 1757 | |
cb5c208b HL |
1758 | if (xso_blocking_mode(ctx.xso)) |
1759 | ret = quic_write_blocking(ctx.xso, buf, len, written); | |
22d53c88 | 1760 | else if (partial_write) |
cb5c208b | 1761 | ret = quic_write_nonblocking_epw(ctx.xso, buf, len, written); |
22d53c88 | 1762 | else |
cb5c208b | 1763 | ret = quic_write_nonblocking_aon(ctx.xso, buf, len, written); |
a8489257 HL |
1764 | |
1765 | out: | |
072328dd | 1766 | quic_unlock(ctx.qc); |
a8489257 | 1767 | return ret; |
d5ab48a1 RL |
1768 | } |
1769 | ||
1770 | /* | |
22d53c88 HL |
1771 | * SSL_read |
1772 | * -------- | |
d5ab48a1 | 1773 | */ |
22d53c88 HL |
1774 | struct quic_read_again_args { |
1775 | QUIC_CONNECTION *qc; | |
1776 | QUIC_STREAM *stream; | |
1777 | void *buf; | |
1778 | size_t len; | |
1779 | size_t *bytes_read; | |
1780 | int peek; | |
1781 | }; | |
1782 | ||
4847599b | 1783 | QUIC_NEEDS_LOCK |
22d53c88 HL |
1784 | static int quic_read_actual(QUIC_CONNECTION *qc, |
1785 | QUIC_STREAM *stream, | |
1786 | void *buf, size_t buf_len, | |
1787 | size_t *bytes_read, | |
1788 | int peek) | |
d5ab48a1 | 1789 | { |
22d53c88 HL |
1790 | int is_fin = 0; |
1791 | ||
a9979965 HL |
1792 | /* If the receive part of the stream is over, issue EOF. */ |
1793 | if (stream->recv_fin_retired) | |
1794 | return QUIC_RAISE_NORMAL_ERROR(qc, SSL_ERROR_ZERO_RETURN); | |
1795 | ||
22d53c88 HL |
1796 | if (stream->rstream == NULL) |
1797 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
1798 | ||
1799 | if (peek) { | |
1800 | if (!ossl_quic_rstream_peek(stream->rstream, buf, buf_len, | |
1801 | bytes_read, &is_fin)) | |
1802 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
1803 | ||
1804 | } else { | |
1805 | if (!ossl_quic_rstream_read(stream->rstream, buf, buf_len, | |
1806 | bytes_read, &is_fin)) | |
1807 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
1808 | } | |
1809 | ||
1810 | if (!peek) { | |
1811 | if (*bytes_read > 0) { | |
1812 | /* | |
1813 | * We have read at least one byte from the stream. Inform stream-level | |
1814 | * RXFC of the retirement of controlled bytes. Update the active stream | |
1815 | * status (the RXFC may now want to emit a frame granting more credit to | |
1816 | * the peer). | |
1817 | */ | |
1818 | OSSL_RTT_INFO rtt_info; | |
d50e750e | 1819 | |
22d53c88 HL |
1820 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(qc->ch), &rtt_info); |
1821 | ||
cb5c208b | 1822 | if (!ossl_quic_rxfc_on_retire(&stream->rxfc, *bytes_read, |
22d53c88 HL |
1823 | rtt_info.smoothed_rtt)) |
1824 | return QUIC_RAISE_NON_NORMAL_ERROR(qc, ERR_R_INTERNAL_ERROR, NULL); | |
1825 | } | |
1826 | ||
1827 | if (is_fin) | |
1828 | stream->recv_fin_retired = 1; | |
1829 | ||
1830 | if (*bytes_read > 0) | |
1831 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(qc->ch), | |
cb5c208b | 1832 | stream); |
22d53c88 HL |
1833 | } |
1834 | ||
d5ab48a1 RL |
1835 | return 1; |
1836 | } | |
1837 | ||
4847599b | 1838 | QUIC_NEEDS_LOCK |
22d53c88 | 1839 | static int quic_read_again(void *arg) |
d5ab48a1 | 1840 | { |
22d53c88 HL |
1841 | struct quic_read_again_args *args = arg; |
1842 | ||
a9979965 | 1843 | if (!ossl_quic_channel_is_active(args->qc->ch)) { |
22d53c88 | 1844 | /* If connection is torn down due to an error while blocking, stop. */ |
a9979965 | 1845 | QUIC_RAISE_NON_NORMAL_ERROR(args->qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
ca41f6b7 | 1846 | return -1; |
a9979965 | 1847 | } |
22d53c88 HL |
1848 | |
1849 | if (!quic_read_actual(args->qc, args->stream, | |
1850 | args->buf, args->len, args->bytes_read, | |
1851 | args->peek)) | |
1852 | return -1; | |
1853 | ||
1854 | if (*args->bytes_read > 0) | |
1855 | /* got at least one byte, the SSL_read op can finish now */ | |
1856 | return 1; | |
1857 | ||
81b6b43c | 1858 | return 0; /* did not read anything, keep trying */ |
d5ab48a1 RL |
1859 | } |
1860 | ||
a8489257 | 1861 | QUIC_TAKES_LOCK |
22d53c88 | 1862 | static int quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read, int peek) |
d5ab48a1 | 1863 | { |
a8489257 | 1864 | int ret, res; |
072328dd | 1865 | QCTX ctx; |
22d53c88 HL |
1866 | struct quic_read_again_args args; |
1867 | ||
1868 | *bytes_read = 0; | |
1869 | ||
8b7be3aa | 1870 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
1871 | return 0; |
1872 | ||
072328dd | 1873 | quic_lock(ctx.qc); |
a8489257 | 1874 | |
23c04709 | 1875 | if (ossl_quic_channel_is_term_any(ctx.qc->ch)) { |
072328dd | 1876 | ret = QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
1877 | goto out; |
1878 | } | |
22d53c88 | 1879 | |
a9979965 | 1880 | /* If we haven't finished the handshake, try to advance it. */ |
072328dd | 1881 | if (quic_do_handshake(ctx.qc) < 1) { |
a8489257 HL |
1882 | ret = 0; /* ossl_quic_do_handshake raised error here */ |
1883 | goto out; | |
1884 | } | |
22d53c88 | 1885 | |
8b7be3aa HL |
1886 | if (ctx.xso == NULL) { |
1887 | /* | |
1888 | * Called on a QCSO and we don't currently have a default stream. | |
1889 | * | |
1890 | * Wait until we get a stream initiated by the peer (blocking mode) or | |
1891 | * fail if we don't have one yet (non-blocking mode). | |
1892 | */ | |
1893 | if (!qc_wait_for_default_xso_for_read(ctx.qc)) { | |
1894 | ret = 0; /* error already raised here */ | |
1895 | goto out; | |
1896 | } | |
1897 | ||
1898 | ctx.xso = ctx.qc->default_xso; | |
1899 | } | |
1900 | ||
cb5c208b | 1901 | if (ctx.xso->stream == NULL) { |
072328dd | 1902 | ret = QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 HL |
1903 | goto out; |
1904 | } | |
22d53c88 | 1905 | |
cb5c208b | 1906 | if (!quic_read_actual(ctx.qc, ctx.xso->stream, buf, len, bytes_read, peek)) { |
a8489257 HL |
1907 | ret = 0; /* quic_read_actual raised error here */ |
1908 | goto out; | |
1909 | } | |
22d53c88 HL |
1910 | |
1911 | if (*bytes_read > 0) { | |
1912 | /* | |
1913 | * Even though we succeeded, tick the reactor here to ensure we are | |
1914 | * handling other aspects of the QUIC connection. | |
1915 | */ | |
072328dd | 1916 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
a8489257 | 1917 | ret = 1; |
cb5c208b | 1918 | } else if (xso_blocking_mode(ctx.xso)) { |
22d53c88 HL |
1919 | /* |
1920 | * We were not able to read anything immediately, so our stream | |
1921 | * buffer is empty. This means we need to block until we get | |
1922 | * at least one byte. | |
1923 | */ | |
072328dd | 1924 | args.qc = ctx.qc; |
cb5c208b | 1925 | args.stream = ctx.xso->stream; |
22d53c88 HL |
1926 | args.buf = buf; |
1927 | args.len = len; | |
1928 | args.bytes_read = bytes_read; | |
1929 | args.peek = peek; | |
1930 | ||
072328dd | 1931 | res = block_until_pred(ctx.qc, quic_read_again, &args, 0); |
a8489257 | 1932 | if (res == 0) { |
072328dd | 1933 | ret = QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 HL |
1934 | goto out; |
1935 | } else if (res < 0) { | |
1936 | ret = 0; /* quic_read_again raised error here */ | |
1937 | goto out; | |
1938 | } | |
22d53c88 | 1939 | |
a8489257 | 1940 | ret = 1; |
af8b52cf HL |
1941 | } else { |
1942 | /* We did not get any bytes and are not in blocking mode. */ | |
072328dd | 1943 | ret = QUIC_RAISE_NORMAL_ERROR(ctx.qc, SSL_ERROR_WANT_READ); |
af8b52cf | 1944 | } |
a8489257 HL |
1945 | |
1946 | out: | |
072328dd | 1947 | quic_unlock(ctx.qc); |
a8489257 | 1948 | return ret; |
d5ab48a1 RL |
1949 | } |
1950 | ||
22d53c88 HL |
1951 | int ossl_quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read) |
1952 | { | |
1953 | return quic_read(s, buf, len, bytes_read, 0); | |
1954 | } | |
1955 | ||
1956 | int ossl_quic_peek(SSL *s, void *buf, size_t len, size_t *bytes_read) | |
1957 | { | |
1958 | return quic_read(s, buf, len, bytes_read, 1); | |
1959 | } | |
1960 | ||
1961 | /* | |
1962 | * SSL_pending | |
1963 | * ----------- | |
1964 | */ | |
a8489257 | 1965 | QUIC_TAKES_LOCK |
072328dd | 1966 | static size_t ossl_quic_pending_int(const SSL *s) |
22d53c88 | 1967 | { |
072328dd | 1968 | QCTX ctx; |
433d107a | 1969 | size_t avail = 0; |
22d53c88 HL |
1970 | int fin = 0; |
1971 | ||
8b7be3aa | 1972 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, &ctx)) |
22d53c88 HL |
1973 | return 0; |
1974 | ||
cb5c208b | 1975 | if (ctx.xso->stream == NULL || ctx.xso->stream->rstream == NULL) |
22d53c88 | 1976 | /* Cannot raise errors here because we are const, just fail. */ |
a8489257 | 1977 | goto out; |
22d53c88 | 1978 | |
cb5c208b | 1979 | if (!ossl_quic_rstream_available(ctx.xso->stream->rstream, &avail, &fin)) |
a8489257 | 1980 | avail = 0; |
22d53c88 | 1981 | |
a8489257 | 1982 | out: |
072328dd | 1983 | quic_unlock(ctx.qc); |
22d53c88 HL |
1984 | return avail; |
1985 | } | |
1986 | ||
560470b5 MC |
1987 | size_t ossl_quic_pending(const SSL *s) |
1988 | { | |
072328dd | 1989 | return ossl_quic_pending_int(s); |
560470b5 MC |
1990 | } |
1991 | ||
072328dd | 1992 | int ossl_quic_has_pending(const SSL *s) |
560470b5 | 1993 | { |
072328dd | 1994 | return ossl_quic_pending_int(s) > 0; |
560470b5 MC |
1995 | } |
1996 | ||
a9979965 HL |
1997 | /* |
1998 | * SSL_stream_conclude | |
1999 | * ------------------- | |
2000 | */ | |
a8489257 | 2001 | QUIC_TAKES_LOCK |
072328dd | 2002 | int ossl_quic_conn_stream_conclude(SSL *s) |
a9979965 | 2003 | { |
072328dd HL |
2004 | QCTX ctx; |
2005 | QUIC_STREAM *qs; | |
2006 | ||
8b7be3aa | 2007 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, &ctx)) |
072328dd HL |
2008 | return 0; |
2009 | ||
cb5c208b | 2010 | qs = ctx.xso->stream; |
a9979965 | 2011 | |
a8489257 | 2012 | if (qs == NULL || qs->sstream == NULL) { |
072328dd | 2013 | quic_unlock(ctx.qc); |
a8489257 HL |
2014 | return 0; |
2015 | } | |
2016 | ||
072328dd | 2017 | if (!ossl_quic_channel_is_active(ctx.qc->ch) |
a8489257 | 2018 | || ossl_quic_sstream_get_final_size(qs->sstream, NULL)) { |
072328dd | 2019 | quic_unlock(ctx.qc); |
a9979965 | 2020 | return 1; |
a8489257 | 2021 | } |
a9979965 HL |
2022 | |
2023 | ossl_quic_sstream_fin(qs->sstream); | |
cb5c208b | 2024 | quic_post_write(ctx.xso, 1, 1); |
072328dd | 2025 | quic_unlock(ctx.qc); |
a9979965 HL |
2026 | return 1; |
2027 | } | |
2028 | ||
553a4e00 HL |
2029 | /* |
2030 | * SSL_inject_net_dgram | |
2031 | * -------------------- | |
2032 | */ | |
5129e594 | 2033 | QUIC_TAKES_LOCK |
553a4e00 HL |
2034 | int SSL_inject_net_dgram(SSL *s, const unsigned char *buf, |
2035 | size_t buf_len, | |
2036 | const BIO_ADDR *peer, | |
2037 | const BIO_ADDR *local) | |
2038 | { | |
5129e594 | 2039 | int ret; |
072328dd | 2040 | QCTX ctx; |
553a4e00 HL |
2041 | QUIC_DEMUX *demux; |
2042 | ||
072328dd | 2043 | if (!expect_quic(s, &ctx)) |
553a4e00 HL |
2044 | return 0; |
2045 | ||
072328dd | 2046 | quic_lock(ctx.qc); |
5129e594 | 2047 | |
072328dd | 2048 | demux = ossl_quic_channel_get0_demux(ctx.qc->ch); |
5129e594 HL |
2049 | ret = ossl_quic_demux_inject(demux, buf, buf_len, peer, local); |
2050 | ||
072328dd | 2051 | quic_unlock(ctx.qc); |
5129e594 | 2052 | return ret; |
553a4e00 HL |
2053 | } |
2054 | ||
020d0389 HL |
2055 | /* |
2056 | * SSL_get0_connection | |
2057 | * ------------------- | |
2058 | */ | |
2059 | SSL *ossl_quic_get0_connection(SSL *s) | |
2060 | { | |
2061 | QCTX ctx; | |
2062 | ||
2063 | if (!expect_quic(s, &ctx)) | |
2064 | return NULL; | |
2065 | ||
2066 | return &ctx.qc->ssl; | |
2067 | } | |
2068 | ||
1bca3f1b HL |
2069 | /* |
2070 | * SSL_get_stream_type | |
2071 | * ------------------- | |
2072 | */ | |
2073 | int ossl_quic_get_stream_type(SSL *s) | |
2074 | { | |
2075 | QCTX ctx; | |
2076 | ||
2077 | if (!expect_quic(s, &ctx)) | |
59c5c016 | 2078 | return SSL_STREAM_TYPE_BIDI; |
1bca3f1b HL |
2079 | |
2080 | if (ctx.xso == NULL) { | |
2081 | /* | |
59c5c016 HL |
2082 | * If deferred XSO creation has yet to occur, proceed according to the |
2083 | * default stream mode. If AUTO_BIDI or AUTO_UNI is set, we cannot know | |
2084 | * what kind of stream will be created yet, so return BIDI on the basis | |
2085 | * that at this time, the client still has the option of calling | |
2086 | * SSL_read() or SSL_write() first. | |
1bca3f1b | 2087 | */ |
59c5c016 HL |
2088 | if (ctx.qc->default_xso_created |
2089 | || ctx.qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
1bca3f1b | 2090 | return SSL_STREAM_TYPE_NONE; |
59c5c016 HL |
2091 | else |
2092 | return SSL_STREAM_TYPE_BIDI; | |
1bca3f1b HL |
2093 | } |
2094 | ||
2095 | if (ossl_quic_stream_is_bidi(ctx.xso->stream)) | |
2096 | return SSL_STREAM_TYPE_BIDI; | |
2097 | ||
2098 | if (ossl_quic_stream_is_server_init(ctx.xso->stream) != ctx.qc->as_server) | |
2099 | return SSL_STREAM_TYPE_READ; | |
2100 | else | |
2101 | return SSL_STREAM_TYPE_WRITE; | |
2102 | } | |
2103 | ||
19cb0887 HL |
2104 | /* |
2105 | * SSL_get_stream_id | |
2106 | * ----------------- | |
2107 | */ | |
cb68ce9f | 2108 | QUIC_TAKES_LOCK |
19cb0887 HL |
2109 | uint64_t ossl_quic_get_stream_id(SSL *s) |
2110 | { | |
2111 | QCTX ctx; | |
8b7be3aa | 2112 | uint64_t id; |
19cb0887 | 2113 | |
8b7be3aa | 2114 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, &ctx)) |
19cb0887 HL |
2115 | return UINT64_MAX; |
2116 | ||
8b7be3aa HL |
2117 | id = ctx.xso->stream->id; |
2118 | quic_unlock(ctx.qc); | |
2119 | ||
2120 | return id; | |
2121 | } | |
2122 | ||
2123 | /* | |
2124 | * SSL_set_default_stream_mode | |
2125 | * --------------------------- | |
2126 | */ | |
cb68ce9f | 2127 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2128 | int ossl_quic_set_default_stream_mode(SSL *s, uint32_t mode) |
2129 | { | |
2130 | QCTX ctx; | |
2131 | ||
2132 | if (!expect_quic_conn_only(s, &ctx)) | |
2133 | return 0; | |
2134 | ||
2135 | quic_lock(ctx.qc); | |
2136 | ||
2137 | if (ctx.qc->default_xso_created) | |
2138 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, | |
2139 | "too late to change default stream mode"); | |
2140 | ||
2141 | switch (mode) { | |
2142 | case SSL_DEFAULT_STREAM_MODE_NONE: | |
2143 | case SSL_DEFAULT_STREAM_MODE_AUTO_BIDI: | |
2144 | case SSL_DEFAULT_STREAM_MODE_AUTO_UNI: | |
2145 | ctx.qc->default_stream_mode = mode; | |
2146 | break; | |
2147 | default: | |
2148 | quic_unlock(ctx.qc); | |
2149 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_PASSED_INVALID_ARGUMENT, | |
2150 | "bad default stream type"); | |
2151 | } | |
2152 | ||
2153 | quic_unlock(ctx.qc); | |
2154 | return 1; | |
2155 | } | |
2156 | ||
2157 | /* | |
2158 | * SSL_detach_stream | |
2159 | * ----------------- | |
2160 | */ | |
cb68ce9f | 2161 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2162 | SSL *ossl_quic_detach_stream(SSL *s) |
2163 | { | |
2164 | QCTX ctx; | |
9cab4bd5 | 2165 | QUIC_XSO *xso = NULL; |
8b7be3aa HL |
2166 | |
2167 | if (!expect_quic_conn_only(s, &ctx)) | |
2168 | return NULL; | |
2169 | ||
2170 | quic_lock(ctx.qc); | |
2171 | ||
8b7be3aa | 2172 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 HL |
2173 | /* QC ref to any default XSO is transferred to us and to caller. */ |
2174 | qc_set_default_xso_keep_ref(ctx.qc, NULL, /*touch=*/1, &xso); | |
8b7be3aa HL |
2175 | |
2176 | quic_unlock(ctx.qc); | |
2177 | ||
9cab4bd5 | 2178 | return xso != NULL ? &xso->ssl : NULL; |
8b7be3aa HL |
2179 | } |
2180 | ||
2181 | /* | |
2182 | * SSL_attach_stream | |
2183 | * ----------------- | |
2184 | */ | |
cb68ce9f | 2185 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2186 | int ossl_quic_attach_stream(SSL *conn, SSL *stream) |
2187 | { | |
2188 | QCTX ctx; | |
9cab4bd5 HL |
2189 | QUIC_XSO *xso; |
2190 | int nref; | |
8b7be3aa HL |
2191 | |
2192 | if (!expect_quic_conn_only(conn, &ctx)) | |
2193 | return 0; | |
2194 | ||
2195 | if (stream == NULL || stream->type != SSL_TYPE_QUIC_XSO) | |
2196 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_PASSED_NULL_PARAMETER, | |
2197 | "stream to attach must be a valid QUIC stream"); | |
2198 | ||
9cab4bd5 HL |
2199 | xso = (QUIC_XSO *)stream; |
2200 | ||
8b7be3aa HL |
2201 | quic_lock(ctx.qc); |
2202 | ||
2203 | if (ctx.qc->default_xso != NULL) { | |
2204 | quic_unlock(ctx.qc); | |
2205 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, | |
2206 | "connection already has a default stream"); | |
2207 | } | |
2208 | ||
9cab4bd5 HL |
2209 | /* |
2210 | * It is a caller error for the XSO being attached as a default XSO to have | |
2211 | * more than one ref. | |
2212 | */ | |
2213 | if (!CRYPTO_GET_REF(&xso->ssl.references, &nref, &xso->ssl.lock)) { | |
2214 | quic_unlock(ctx.qc); | |
2215 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_INTERNAL_ERROR, | |
2216 | "ref"); | |
2217 | } | |
2218 | ||
2219 | if (nref != 1) { | |
2220 | quic_unlock(ctx.qc); | |
2221 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_PASSED_INVALID_ARGUMENT, | |
2222 | "stream being attached must have " | |
2223 | "only 1 reference"); | |
2224 | } | |
2225 | ||
2226 | /* Caller's reference to the XSO is transferred to us. */ | |
8b7be3aa | 2227 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 | 2228 | qc_set_default_xso(ctx.qc, xso, /*touch=*/1); |
8b7be3aa HL |
2229 | |
2230 | quic_unlock(ctx.qc); | |
2231 | return 1; | |
19cb0887 HL |
2232 | } |
2233 | ||
8a90df34 HL |
2234 | /* |
2235 | * SSL_set_incoming_stream_reject_policy | |
2236 | * ------------------------------------- | |
2237 | */ | |
995ff282 HL |
2238 | QUIC_NEEDS_LOCK |
2239 | static int qc_get_effective_incoming_stream_reject_policy(QUIC_CONNECTION *qc) | |
2240 | { | |
2241 | switch (qc->incoming_stream_reject_policy) { | |
2242 | case SSL_INCOMING_STREAM_REJECT_POLICY_AUTO: | |
2243 | if ((qc->default_xso == NULL && !qc->default_xso_created) | |
2244 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
2245 | return SSL_INCOMING_STREAM_REJECT_POLICY_ACCEPT; | |
2246 | else | |
2247 | return SSL_INCOMING_STREAM_REJECT_POLICY_REJECT; | |
2248 | ||
2249 | default: | |
2250 | return qc->incoming_stream_reject_policy; | |
2251 | } | |
2252 | } | |
2253 | ||
2254 | QUIC_NEEDS_LOCK | |
2255 | static void qc_update_reject_policy(QUIC_CONNECTION *qc) | |
2256 | { | |
2257 | int policy = qc_get_effective_incoming_stream_reject_policy(qc); | |
2258 | int enable_reject = (policy == SSL_INCOMING_STREAM_REJECT_POLICY_REJECT); | |
2259 | ||
2260 | ossl_quic_channel_set_incoming_stream_auto_reject(qc->ch, | |
2261 | enable_reject, | |
2262 | qc->incoming_stream_reject_aec); | |
2263 | } | |
2264 | ||
cb68ce9f | 2265 | QUIC_TAKES_LOCK |
8a90df34 HL |
2266 | int ossl_quic_set_incoming_stream_reject_policy(SSL *s, int policy, |
2267 | uint64_t aec) | |
2268 | { | |
2269 | int ret = 1; | |
2270 | QCTX ctx; | |
2271 | ||
2272 | if (!expect_quic_conn_only(s, &ctx)) | |
2273 | return 0; | |
2274 | ||
2275 | quic_lock(ctx.qc); | |
2276 | ||
2277 | switch (policy) { | |
2278 | case SSL_INCOMING_STREAM_REJECT_POLICY_AUTO: | |
2279 | case SSL_INCOMING_STREAM_REJECT_POLICY_ACCEPT: | |
2280 | case SSL_INCOMING_STREAM_REJECT_POLICY_REJECT: | |
2281 | ctx.qc->incoming_stream_reject_policy = policy; | |
2282 | ctx.qc->incoming_stream_reject_aec = aec; | |
2283 | break; | |
2284 | ||
2285 | default: | |
2286 | ret = 0; | |
2287 | break; | |
2288 | } | |
2289 | ||
995ff282 | 2290 | qc_update_reject_policy(ctx.qc); |
8a90df34 HL |
2291 | quic_unlock(ctx.qc); |
2292 | return ret; | |
2293 | } | |
2294 | ||
cb68ce9f HL |
2295 | /* |
2296 | * SSL_accept_stream | |
2297 | * ----------------- | |
2298 | */ | |
cb68ce9f HL |
2299 | struct wait_for_incoming_stream_args { |
2300 | QUIC_CONNECTION *qc; | |
2301 | QUIC_STREAM *qs; | |
2302 | }; | |
2303 | ||
2304 | QUIC_NEEDS_LOCK | |
2305 | static int wait_for_incoming_stream(void *arg) | |
2306 | { | |
2307 | struct wait_for_incoming_stream_args *args = arg; | |
2308 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(args->qc->ch); | |
2309 | ||
2310 | if (!ossl_quic_channel_is_active(args->qc->ch)) { | |
2311 | /* If connection is torn down due to an error while blocking, stop. */ | |
2312 | QUIC_RAISE_NON_NORMAL_ERROR(args->qc, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
2313 | return -1; | |
2314 | } | |
2315 | ||
2316 | args->qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
2317 | if (args->qs != NULL) | |
2318 | return 1; /* got a stream */ | |
2319 | ||
2320 | return 0; /* did not get a stream, keep trying */ | |
2321 | } | |
2322 | ||
2323 | QUIC_TAKES_LOCK | |
2324 | SSL *ossl_quic_accept_stream(SSL *s, uint64_t flags) | |
2325 | { | |
2326 | QCTX ctx; | |
2327 | int ret; | |
2328 | SSL *new_s = NULL; | |
2329 | QUIC_STREAM_MAP *qsm; | |
2330 | QUIC_STREAM *qs; | |
2331 | QUIC_XSO *xso; | |
90cecc40 | 2332 | OSSL_RTT_INFO rtt_info; |
cb68ce9f HL |
2333 | |
2334 | if (!expect_quic_conn_only(s, &ctx)) | |
2335 | return NULL; | |
2336 | ||
2337 | quic_lock(ctx.qc); | |
2338 | ||
2339 | if (qc_get_effective_incoming_stream_reject_policy(ctx.qc) | |
2340 | == SSL_INCOMING_STREAM_REJECT_POLICY_REJECT) | |
2341 | goto out; | |
2342 | ||
2343 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
2344 | ||
2345 | qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
2346 | if (qs == NULL) { | |
2347 | if (qc_blocking_mode(ctx.qc) | |
2348 | && (flags & SSL_ACCEPT_STREAM_NO_BLOCK) == 0) { | |
2349 | struct wait_for_incoming_stream_args args; | |
2350 | ||
2351 | args.qc = ctx.qc; | |
2352 | args.qs = NULL; | |
2353 | ||
2354 | ret = block_until_pred(ctx.qc, wait_for_incoming_stream, &args, 0); | |
2355 | if (ret == 0) { | |
2356 | QUIC_RAISE_NON_NORMAL_ERROR(ctx.qc, ERR_R_INTERNAL_ERROR, NULL); | |
2357 | goto out; | |
2358 | } else if (ret < 0 || args.qs == NULL) { | |
2359 | goto out; | |
2360 | } | |
2361 | ||
2362 | qs = args.qs; | |
2363 | } else { | |
2364 | goto out; | |
2365 | } | |
2366 | } | |
2367 | ||
2368 | xso = create_xso_from_stream(ctx.qc, qs); | |
2369 | if (xso == NULL) | |
2370 | goto out; | |
2371 | ||
90cecc40 HL |
2372 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(ctx.qc->ch), &rtt_info); |
2373 | ossl_quic_stream_map_remove_from_accept_queue(qsm, qs, | |
2374 | rtt_info.smoothed_rtt); | |
cb68ce9f HL |
2375 | new_s = &xso->ssl; |
2376 | ||
2377 | /* Calling this function inhibits default XSO autocreation. */ | |
995ff282 | 2378 | qc_touch_default_xso(ctx.qc); /* inhibits default XSO */ |
cb68ce9f HL |
2379 | |
2380 | out: | |
2381 | quic_unlock(ctx.qc); | |
2382 | return new_s; | |
2383 | } | |
2384 | ||
2385 | /* | |
2386 | * SSL_get_accept_stream_queue_len | |
2387 | * ------------------------------- | |
2388 | */ | |
2389 | QUIC_TAKES_LOCK | |
2390 | size_t ossl_quic_get_accept_stream_queue_len(SSL *s) | |
2391 | { | |
2392 | QCTX ctx; | |
2393 | size_t v; | |
2394 | ||
2395 | if (!expect_quic_conn_only(s, &ctx)) | |
2396 | return 0; | |
2397 | ||
2398 | quic_lock(ctx.qc); | |
2399 | ||
2400 | v = ossl_quic_stream_map_get_accept_queue_len(ossl_quic_channel_get_qsm(ctx.qc->ch)); | |
2401 | ||
2402 | quic_unlock(ctx.qc); | |
2403 | return v; | |
2404 | } | |
2405 | ||
c3a04ea2 HL |
2406 | /* |
2407 | * SSL_stream_reset | |
2408 | * ---------------- | |
2409 | */ | |
2410 | int ossl_quic_stream_reset(SSL *ssl, | |
2411 | const SSL_STREAM_RESET_ARGS *args, | |
2412 | size_t args_len) | |
2413 | { | |
2414 | QCTX ctx; | |
2415 | QUIC_STREAM_MAP *qsm; | |
2416 | QUIC_STREAM *qs; | |
2417 | uint64_t error_code; | |
2418 | ||
2419 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/0, &ctx)) | |
2420 | return 0; | |
2421 | ||
2422 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
2423 | qs = ctx.xso->stream; | |
2424 | error_code = (args != NULL ? args->quic_error_code : 0); | |
2425 | ||
2426 | ossl_quic_stream_map_reset_stream_send_part(qsm, qs, error_code); | |
2427 | ||
2428 | quic_unlock(ctx.qc); | |
2429 | return 1; | |
2430 | } | |
2431 | ||
2432 | /* | |
2433 | * SSL_get_stream_read_state | |
2434 | * ------------------------- | |
2435 | */ | |
2436 | static void quic_classify_stream(QUIC_CONNECTION *qc, | |
2437 | QUIC_STREAM *qs, | |
2438 | int is_write, | |
2439 | int *state, | |
2440 | uint64_t *app_error_code) | |
2441 | { | |
2442 | int local_init; | |
2443 | uint64_t final_size; | |
2444 | ||
2445 | local_init = (ossl_quic_stream_is_server_init(qs) == qc->as_server); | |
2446 | ||
2447 | if (app_error_code != NULL) | |
2448 | *app_error_code = UINT64_MAX; | |
2449 | else | |
2450 | app_error_code = &final_size; /* throw away value */ | |
2451 | ||
2452 | if (!ossl_quic_stream_is_bidi(qs) && local_init != is_write) { | |
2453 | /* | |
2454 | * Unidirectional stream and this direction of transmission doesn't | |
2455 | * exist. | |
2456 | */ | |
2457 | *state = SSL_STREAM_STATE_WRONG_DIR; | |
2458 | } else if (ossl_quic_channel_is_term_any(qc->ch)) { | |
2459 | /* Connection already closed. */ | |
2460 | *state = SSL_STREAM_STATE_CONN_CLOSED; | |
2461 | } else if (!is_write && qs->recv_fin_retired) { | |
2462 | /* Application has read a FIN. */ | |
2463 | *state = SSL_STREAM_STATE_FINISHED; | |
2464 | } else if ((!is_write && qs->stop_sending) | |
2465 | || (is_write && qs->reset_stream)) { | |
2466 | /* | |
2467 | * Stream has been reset locally. FIN takes precedence over this for the | |
2468 | * read case as the application need not care if the stream is reset | |
2469 | * after a FIN has been successfully processed. | |
2470 | */ | |
2471 | *state = SSL_STREAM_STATE_RESET_LOCAL; | |
2472 | *app_error_code = !is_write | |
2473 | ? qs->stop_sending_aec | |
2474 | : qs->reset_stream_aec; | |
2475 | } else if ((!is_write && qs->peer_reset_stream) | |
2476 | || (is_write && qs->peer_stop_sending)) { | |
2477 | /* | |
2478 | * Stream has been reset remotely. */ | |
2479 | *state = SSL_STREAM_STATE_RESET_REMOTE; | |
2480 | *app_error_code = !is_write | |
2481 | ? qs->peer_reset_stream_aec | |
2482 | : qs->peer_stop_sending_aec; | |
2483 | } else if (is_write && ossl_quic_sstream_get_final_size(qs->sstream, | |
2484 | &final_size)) { | |
2485 | /* | |
2486 | * Stream has been finished. Stream reset takes precedence over this for | |
2487 | * the write case as peer may not have received all data. | |
2488 | */ | |
2489 | *state = SSL_STREAM_STATE_FINISHED; | |
2490 | } else { | |
2491 | /* Stream still healthy. */ | |
2492 | *state = SSL_STREAM_STATE_OK; | |
2493 | } | |
2494 | } | |
2495 | ||
2496 | static int quic_get_stream_state(SSL *ssl, int is_write) | |
2497 | { | |
2498 | QCTX ctx; | |
2499 | int state; | |
2500 | ||
2501 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, &ctx)) | |
2502 | return SSL_STREAM_STATE_NONE; | |
2503 | ||
2504 | quic_classify_stream(ctx.qc, ctx.xso->stream, is_write, &state, NULL); | |
2505 | quic_unlock(ctx.qc); | |
2506 | return state; | |
2507 | } | |
2508 | ||
2509 | int ossl_quic_get_stream_read_state(SSL *ssl) | |
2510 | { | |
2511 | return quic_get_stream_state(ssl, /*is_write=*/0); | |
2512 | } | |
2513 | ||
2514 | /* | |
2515 | * SSL_get_stream_write_state | |
2516 | * -------------------------- | |
2517 | */ | |
2518 | int ossl_quic_get_stream_write_state(SSL *ssl) | |
2519 | { | |
2520 | return quic_get_stream_state(ssl, /*is_write=*/1); | |
2521 | } | |
2522 | ||
2523 | /* | |
2524 | * SSL_get_stream_read_error_code | |
2525 | * ------------------------------ | |
2526 | */ | |
2527 | static int quic_get_stream_error_code(SSL *ssl, int is_write, | |
2528 | uint64_t *app_error_code) | |
2529 | { | |
2530 | QCTX ctx; | |
2531 | int state; | |
2532 | ||
2533 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, &ctx)) | |
2534 | return -1; | |
2535 | ||
2536 | quic_classify_stream(ctx.qc, ctx.xso->stream, /*is_write=*/0, | |
2537 | &state, app_error_code); | |
2538 | ||
2539 | quic_unlock(ctx.qc); | |
2540 | switch (state) { | |
2541 | case SSL_STREAM_STATE_FINISHED: | |
2542 | return 0; | |
2543 | case SSL_STREAM_STATE_RESET_LOCAL: | |
2544 | case SSL_STREAM_STATE_RESET_REMOTE: | |
2545 | return 1; | |
2546 | default: | |
2547 | return -1; | |
2548 | } | |
2549 | } | |
2550 | ||
2551 | int ossl_quic_get_stream_read_error_code(SSL *ssl, uint64_t *app_error_code) | |
2552 | { | |
2553 | return quic_get_stream_error_code(ssl, /*is_write=*/0, app_error_code); | |
2554 | } | |
2555 | ||
2556 | /* | |
2557 | * SSL_get_stream_write_error_code | |
2558 | * ------------------------------- | |
2559 | */ | |
2560 | int ossl_quic_get_stream_write_error_code(SSL *ssl, uint64_t *app_error_code) | |
2561 | { | |
2562 | return quic_get_stream_error_code(ssl, /*is_write=*/1, app_error_code); | |
2563 | } | |
2564 | ||
2565 | /* | |
2566 | * SSL_get_conn_close_info | |
2567 | * ----------------------- | |
2568 | */ | |
2569 | int ossl_quic_get_conn_close_info(SSL *ssl, | |
2570 | SSL_CONN_CLOSE_INFO *info, | |
2571 | size_t info_len) | |
2572 | { | |
2573 | QCTX ctx; | |
2574 | const QUIC_TERMINATE_CAUSE *tc; | |
2575 | ||
2576 | if (!expect_quic_conn_only(ssl, &ctx)) | |
2577 | return -1; | |
2578 | ||
2579 | tc = ossl_quic_channel_get_terminate_cause(ctx.qc->ch); | |
2580 | if (tc == NULL) | |
2581 | return 0; | |
2582 | ||
2583 | info->error_code = tc->error_code; | |
2584 | info->reason = NULL; /* TODO(QUIC): Wire reason */ | |
2585 | info->reason_len = 0; | |
2586 | info->is_local = !tc->remote; | |
2587 | info->is_transport = !tc->app; | |
2588 | return 1; | |
2589 | } | |
2590 | ||
22d53c88 HL |
2591 | /* |
2592 | * QUIC Front-End I/O API: SSL_CTX Management | |
2593 | * ========================================== | |
2594 | */ | |
2595 | ||
2596 | long ossl_quic_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2597 | { | |
2598 | switch (cmd) { | |
2599 | default: | |
8a1a6d6d | 2600 | return ssl3_ctx_ctrl(ctx, cmd, larg, parg); |
22d53c88 HL |
2601 | } |
2602 | } | |
2603 | ||
2604 | long ossl_quic_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2605 | { | |
8a1a6d6d | 2606 | return ssl3_callback_ctrl(s, cmd, fp); |
22d53c88 HL |
2607 | } |
2608 | ||
2609 | long ossl_quic_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2610 | { | |
8a1a6d6d | 2611 | return ssl3_ctx_callback_ctrl(ctx, cmd, fp); |
22d53c88 HL |
2612 | } |
2613 | ||
2614 | int ossl_quic_renegotiate_check(SSL *ssl, int initok) | |
2615 | { | |
2616 | /* We never do renegotiation. */ | |
2617 | return 0; | |
2618 | } | |
2619 | ||
2620 | /* | |
d518854c MC |
2621 | * These functions define the TLSv1.2 (and below) ciphers that are supported by |
2622 | * the SSL_METHOD. Since QUIC only supports TLSv1.3 we don't support any. | |
22d53c88 | 2623 | */ |
22d53c88 HL |
2624 | |
2625 | int ossl_quic_num_ciphers(void) | |
2626 | { | |
d518854c | 2627 | return 0; |
22d53c88 HL |
2628 | } |
2629 | ||
2630 | const SSL_CIPHER *ossl_quic_get_cipher(unsigned int u) | |
2631 | { | |
d518854c | 2632 | return NULL; |
d5ab48a1 | 2633 | } |