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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 | |
faa3a180 HL |
20 | typedef struct qctx_st QCTX; |
21 | ||
cb5c208b | 22 | static void aon_write_finish(QUIC_XSO *xso); |
23c04709 | 23 | static int create_channel(QUIC_CONNECTION *qc); |
21c80696 | 24 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs); |
faa3a180 HL |
25 | static int qc_try_create_default_xso_for_write(QCTX *ctx); |
26 | static int qc_wait_for_default_xso_for_read(QCTX *ctx); | |
8b7be3aa HL |
27 | static void quic_lock(QUIC_CONNECTION *qc); |
28 | static void quic_unlock(QUIC_CONNECTION *qc); | |
faa3a180 | 29 | static int quic_do_handshake(QCTX *ctx); |
995ff282 HL |
30 | static void qc_update_reject_policy(QUIC_CONNECTION *qc); |
31 | static void qc_touch_default_xso(QUIC_CONNECTION *qc); | |
32 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch); | |
9cab4bd5 HL |
33 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
34 | int touch, QUIC_XSO **old_xso); | |
faa3a180 | 35 | static SSL *quic_conn_stream_new(QCTX *ctx, uint64_t flags, int need_lock); |
abfe3d51 | 36 | static int quic_validate_for_write(QUIC_XSO *xso, int *err); |
22d53c88 HL |
37 | |
38 | /* | |
39 | * QUIC Front-End I/O API: Common Utilities | |
40 | * ======================================== | |
41 | */ | |
42 | ||
43 | /* | |
44 | * Block until a predicate is met. | |
45 | * | |
46 | * Precondition: Must have a channel. | |
d7b1fadd | 47 | * Precondition: Must hold channel lock (unchecked). |
22d53c88 | 48 | */ |
d7b1fadd | 49 | QUIC_NEEDS_LOCK |
22d53c88 HL |
50 | static int block_until_pred(QUIC_CONNECTION *qc, |
51 | int (*pred)(void *arg), void *pred_arg, | |
52 | uint32_t flags) | |
53 | { | |
54 | QUIC_REACTOR *rtor; | |
55 | ||
56 | assert(qc->ch != NULL); | |
57 | ||
58 | rtor = ossl_quic_channel_get_reactor(qc->ch); | |
c019e1ef | 59 | return ossl_quic_reactor_block_until_pred(rtor, pred, pred_arg, flags, |
4847599b | 60 | qc->mutex); |
22d53c88 HL |
61 | } |
62 | ||
e3e9794a HL |
63 | static OSSL_TIME get_time(QUIC_CONNECTION *qc) |
64 | { | |
65 | if (qc->override_now_cb != NULL) | |
66 | return qc->override_now_cb(qc->override_now_cb_arg); | |
67 | else | |
68 | return ossl_time_now(); | |
69 | } | |
70 | ||
71 | static OSSL_TIME get_time_cb(void *arg) | |
72 | { | |
73 | QUIC_CONNECTION *qc = arg; | |
74 | ||
75 | return get_time(qc); | |
76 | } | |
77 | ||
faa3a180 HL |
78 | /* |
79 | * QCTX is a utility structure which provides information we commonly wish to | |
80 | * unwrap upon an API call being dispatched to us, namely: | |
81 | * | |
82 | * - a pointer to the QUIC_CONNECTION (regardless of whether a QCSO or QSSO | |
83 | * was passed); | |
84 | * - a pointer to any applicable QUIC_XSO (e.g. if a QSSO was passed, or if | |
85 | * a QCSO with a default stream was passed); | |
86 | * - whether a QSSO was passed (xso == NULL must not be used to determine this | |
87 | * because it may be non-NULL when a QCSO is passed if that QCSO has a | |
88 | * default stream). | |
89 | */ | |
90 | struct qctx_st { | |
91 | QUIC_CONNECTION *qc; | |
92 | QUIC_XSO *xso; | |
93 | int is_stream; | |
94 | }; | |
95 | ||
22d53c88 HL |
96 | /* |
97 | * Raise a 'normal' error, meaning one that can be reported via SSL_get_error() | |
faa3a180 HL |
98 | * rather than via ERR. Note that normal errors must always be raised while |
99 | * holding a lock. | |
22d53c88 | 100 | */ |
faa3a180 HL |
101 | QUIC_NEEDS_LOCK |
102 | static int quic_raise_normal_error(QCTX *ctx, | |
22d53c88 HL |
103 | int err) |
104 | { | |
faa3a180 HL |
105 | if (ctx->is_stream) |
106 | ctx->xso->last_error = err; | |
107 | else | |
108 | ctx->qc->last_error = err; | |
109 | ||
22d53c88 HL |
110 | return 0; |
111 | } | |
112 | ||
113 | /* | |
114 | * Raise a 'non-normal' error, meaning any error that is not reported via | |
115 | * SSL_get_error() and must be reported via ERR. | |
e88cdb8e HL |
116 | * |
117 | * qc should be provided if available. In exceptional circumstances when qc is | |
118 | * not known NULL may be passed. This should generally only happen when an | |
119 | * expect_...() function defined below fails, which generally indicates a | |
120 | * dispatch error or caller error. | |
faa3a180 HL |
121 | * |
122 | * ctx should be NULL if the connection lock is not held. | |
22d53c88 | 123 | */ |
faa3a180 | 124 | static int quic_raise_non_normal_error(QCTX *ctx, |
22d53c88 HL |
125 | const char *file, |
126 | int line, | |
127 | const char *func, | |
128 | int reason, | |
129 | const char *fmt, | |
130 | ...) | |
131 | { | |
132 | va_list args; | |
133 | ||
faa3a180 HL |
134 | if (ctx != NULL) { |
135 | if (ctx->is_stream && ctx->xso != NULL) | |
136 | ctx->xso->last_error = SSL_ERROR_SSL; | |
137 | else if (!ctx->is_stream && ctx->qc != NULL) | |
138 | ctx->qc->last_error = SSL_ERROR_SSL; | |
9c3ea4e1 TM |
139 | |
140 | if (reason == SSL_R_PROTOCOL_IS_SHUTDOWN && ctx->qc != NULL) | |
141 | ossl_quic_channel_restore_err_state(ctx->qc->ch); | |
faa3a180 | 142 | } |
e88cdb8e | 143 | |
9c3ea4e1 TM |
144 | ERR_new(); |
145 | ERR_set_debug(file, line, func); | |
146 | ||
147 | va_start(args, fmt); | |
148 | ERR_vset_error(ERR_LIB_SSL, reason, fmt, args); | |
149 | va_end(args); | |
150 | ||
22d53c88 HL |
151 | return 0; |
152 | } | |
153 | ||
faa3a180 HL |
154 | #define QUIC_RAISE_NORMAL_ERROR(ctx, err) \ |
155 | quic_raise_normal_error((ctx), (err)) | |
22d53c88 | 156 | |
faa3a180 HL |
157 | #define QUIC_RAISE_NON_NORMAL_ERROR(ctx, reason, msg) \ |
158 | quic_raise_non_normal_error((ctx), \ | |
22d53c88 HL |
159 | OPENSSL_FILE, OPENSSL_LINE, \ |
160 | OPENSSL_FUNC, \ | |
161 | (reason), \ | |
162 | (msg)) | |
163 | ||
e88cdb8e HL |
164 | /* |
165 | * Given a QCSO or QSSO, initialises a QCTX, determining the contextually | |
166 | * applicable QUIC_CONNECTION pointer and, if applicable, QUIC_XSO pointer. | |
167 | * | |
168 | * After this returns 1, all fields of the passed QCTX are initialised. | |
169 | * Returns 0 on failure. This function is intended to be used to provide API | |
170 | * semantics and as such, it invokes QUIC_RAISE_NON_NORMAL_ERROR() on failure. | |
22d53c88 | 171 | */ |
e88cdb8e | 172 | static int expect_quic(const SSL *s, QCTX *ctx) |
22d53c88 | 173 | { |
e88cdb8e HL |
174 | QUIC_CONNECTION *qc; |
175 | QUIC_XSO *xso; | |
176 | ||
177 | ctx->qc = NULL; | |
178 | ctx->xso = NULL; | |
179 | ctx->is_stream = 0; | |
180 | ||
181 | if (s == NULL) | |
8b7be3aa | 182 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_PASSED_NULL_PARAMETER, NULL); |
22d53c88 | 183 | |
e88cdb8e HL |
184 | switch (s->type) { |
185 | case SSL_TYPE_QUIC_CONNECTION: | |
186 | qc = (QUIC_CONNECTION *)s; | |
187 | ctx->qc = qc; | |
cb5c208b | 188 | ctx->xso = qc->default_xso; |
e88cdb8e HL |
189 | ctx->is_stream = 0; |
190 | return 1; | |
191 | ||
192 | case SSL_TYPE_QUIC_XSO: | |
193 | xso = (QUIC_XSO *)s; | |
cb5c208b | 194 | ctx->qc = xso->conn; |
e88cdb8e HL |
195 | ctx->xso = xso; |
196 | ctx->is_stream = 1; | |
197 | return 1; | |
198 | ||
199 | default: | |
200 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); | |
201 | } | |
202 | } | |
203 | ||
204 | /* | |
205 | * Like expect_quic(), but requires a QUIC_XSO be contextually available. In | |
206 | * other words, requires that the passed QSO be a QSSO or a QCSO with a default | |
207 | * stream. | |
21c80696 HL |
208 | * |
209 | * remote_init determines if we expect the default XSO to be remotely created or | |
210 | * not. If it is -1, do not instantiate a default XSO if one does not yet exist. | |
8b7be3aa HL |
211 | * |
212 | * Channel mutex is acquired and retained on success. | |
e88cdb8e | 213 | */ |
8b7be3aa HL |
214 | QUIC_ACQUIRES_LOCK |
215 | static int ossl_unused expect_quic_with_stream_lock(const SSL *s, int remote_init, | |
216 | QCTX *ctx) | |
e88cdb8e HL |
217 | { |
218 | if (!expect_quic(s, ctx)) | |
219 | return 0; | |
220 | ||
8b7be3aa HL |
221 | quic_lock(ctx->qc); |
222 | ||
21c80696 | 223 | if (ctx->xso == NULL && remote_init >= 0) { |
8b7be3aa | 224 | if (ossl_quic_channel_is_term_any(ctx->qc->ch)) { |
faa3a180 | 225 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
8b7be3aa HL |
226 | goto err; |
227 | } | |
228 | ||
229 | /* If we haven't finished the handshake, try to advance it. */ | |
faa3a180 | 230 | if (quic_do_handshake(ctx) < 1) |
8b7be3aa HL |
231 | /* ossl_quic_do_handshake raised error here */ |
232 | goto err; | |
233 | ||
234 | if (remote_init == 0) { | |
faa3a180 | 235 | if (!qc_try_create_default_xso_for_write(ctx)) |
8b7be3aa HL |
236 | goto err; |
237 | } else { | |
faa3a180 | 238 | if (!qc_wait_for_default_xso_for_read(ctx)) |
8b7be3aa HL |
239 | goto err; |
240 | } | |
241 | ||
21c80696 HL |
242 | ctx->xso = ctx->qc->default_xso; |
243 | } | |
244 | ||
8b7be3aa | 245 | if (ctx->xso == NULL) { |
faa3a180 | 246 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
8b7be3aa HL |
247 | goto err; |
248 | } | |
249 | ||
250 | return 1; /* lock held */ | |
e88cdb8e | 251 | |
8b7be3aa HL |
252 | err: |
253 | quic_unlock(ctx->qc); | |
254 | return 0; | |
e88cdb8e | 255 | } |
22d53c88 | 256 | |
e88cdb8e HL |
257 | /* |
258 | * Like expect_quic(), but fails if called on a QUIC_XSO. ctx->xso may still | |
259 | * be non-NULL if the QCSO has a default stream. | |
260 | */ | |
23c04709 | 261 | static int ossl_unused expect_quic_conn_only(const SSL *s, QCTX *ctx) |
e88cdb8e HL |
262 | { |
263 | if (!expect_quic(s, ctx)) | |
264 | return 0; | |
265 | ||
266 | if (ctx->is_stream) | |
faa3a180 | 267 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_CONN_USE_ONLY, NULL); |
e88cdb8e HL |
268 | |
269 | return 1; | |
22d53c88 HL |
270 | } |
271 | ||
4847599b HL |
272 | /* |
273 | * Ensures that the channel mutex is held for a method which touches channel | |
274 | * state. | |
275 | * | |
276 | * Precondition: Channel mutex is not held (unchecked) | |
277 | */ | |
20f45743 | 278 | static void quic_lock(QUIC_CONNECTION *qc) |
4847599b | 279 | { |
629b408c | 280 | #if defined(OPENSSL_THREADS) |
ffce2946 | 281 | ossl_crypto_mutex_lock(qc->mutex); |
629b408c | 282 | #endif |
4847599b HL |
283 | } |
284 | ||
285 | /* Precondition: Channel mutex is held (unchecked) */ | |
286 | QUIC_NEEDS_LOCK | |
287 | static void quic_unlock(QUIC_CONNECTION *qc) | |
288 | { | |
629b408c | 289 | #if defined(OPENSSL_THREADS) |
ffce2946 | 290 | ossl_crypto_mutex_unlock(qc->mutex); |
629b408c | 291 | #endif |
4847599b HL |
292 | } |
293 | ||
294 | ||
22d53c88 HL |
295 | /* |
296 | * QUIC Front-End I/O API: Initialization | |
297 | * ====================================== | |
298 | * | |
299 | * SSL_new => ossl_quic_new | |
300 | * ossl_quic_init | |
301 | * SSL_reset => ossl_quic_reset | |
302 | * SSL_clear => ossl_quic_clear | |
303 | * ossl_quic_deinit | |
304 | * SSL_free => ossl_quic_free | |
305 | * | |
f0d9757c HL |
306 | * SSL_set_options => ossl_quic_set_options |
307 | * SSL_get_options => ossl_quic_get_options | |
308 | * SSL_clear_options => ossl_quic_clear_options | |
309 | * | |
22d53c88 HL |
310 | */ |
311 | ||
312 | /* SSL_new */ | |
38b051a1 TM |
313 | SSL *ossl_quic_new(SSL_CTX *ctx) |
314 | { | |
22d53c88 HL |
315 | QUIC_CONNECTION *qc = NULL; |
316 | SSL *ssl_base = NULL; | |
a7f41885 | 317 | SSL_CONNECTION *sc = NULL; |
38b051a1 TM |
318 | |
319 | qc = OPENSSL_zalloc(sizeof(*qc)); | |
320 | if (qc == NULL) | |
321 | goto err; | |
322 | ||
22d53c88 HL |
323 | /* Initialise the QUIC_CONNECTION's stub header. */ |
324 | ssl_base = &qc->ssl; | |
a7f41885 | 325 | if (!ossl_ssl_init(ssl_base, ctx, ctx->method, SSL_TYPE_QUIC_CONNECTION)) { |
22d53c88 | 326 | ssl_base = NULL; |
38b051a1 TM |
327 | goto err; |
328 | } | |
38b051a1 | 329 | |
4e3a55fd | 330 | qc->tls = ossl_ssl_connection_new_int(ctx, TLS_method()); |
a7f41885 MC |
331 | if (qc->tls == NULL || (sc = SSL_CONNECTION_FROM_SSL(qc->tls)) == NULL) |
332 | goto err; | |
f0d9757c | 333 | |
43788fb3 | 334 | /* override the user_ssl of the inner connection */ |
f082205b | 335 | sc->s3.flags |= TLS1_FLAGS_QUIC; |
a7f41885 | 336 | |
f0d9757c | 337 | /* Restrict options derived from the SSL_CTX. */ |
db2f98c4 | 338 | sc->options &= OSSL_QUIC_PERMITTED_OPTIONS_CONN; |
6e5550a1 | 339 | sc->pha_enabled = 0; |
f0d9757c | 340 | |
629b408c | 341 | #if defined(OPENSSL_THREADS) |
ffce2946 | 342 | if ((qc->mutex = ossl_crypto_mutex_new()) == NULL) |
4847599b | 343 | goto err; |
629b408c | 344 | #endif |
4847599b | 345 | |
629b408c | 346 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
f2f7c4f1 HL |
347 | qc->is_thread_assisted |
348 | = (ssl_base->method == OSSL_QUIC_client_thread_method()); | |
629b408c | 349 | #endif |
f2f7c4f1 | 350 | |
dfb9ae14 HL |
351 | qc->as_server = 0; /* TODO(QUIC): server support */ |
352 | qc->as_server_state = qc->as_server; | |
353 | ||
8b7be3aa | 354 | qc->default_stream_mode = SSL_DEFAULT_STREAM_MODE_AUTO_BIDI; |
21c80696 | 355 | qc->default_ssl_mode = qc->ssl.ctx->mode; |
db2f98c4 | 356 | qc->default_ssl_options = qc->ssl.ctx->options & OSSL_QUIC_PERMITTED_OPTIONS; |
21c80696 | 357 | qc->default_blocking = 1; |
fb4a2bba | 358 | qc->blocking = 1; |
83df44ae | 359 | qc->incoming_stream_policy = SSL_INCOMING_STREAM_POLICY_AUTO; |
21c80696 | 360 | qc->last_error = SSL_ERROR_NONE; |
a7f41885 | 361 | |
23c04709 HL |
362 | if (!create_channel(qc)) |
363 | goto err; | |
364 | ||
5cf99b40 MC |
365 | ossl_quic_channel_set_msg_callback(qc->ch, ctx->msg_callback, ssl_base); |
366 | ossl_quic_channel_set_msg_callback_arg(qc->ch, ctx->msg_callback_arg); | |
367 | ||
995ff282 HL |
368 | qc_update_reject_policy(qc); |
369 | ||
21c80696 HL |
370 | /* |
371 | * We do not create the default XSO yet. The reason for this is that the | |
372 | * stream ID of the default XSO will depend on whether the stream is client | |
373 | * or server-initiated, which depends on who transmits first. Since we do | |
374 | * not know whether the application will be using a client-transmits-first | |
375 | * or server-transmits-first protocol, we defer default XSO creation until | |
376 | * the client calls SSL_read() or SSL_write(). If it calls SSL_read() first, | |
377 | * we take that as a cue that the client is expecting a server-initiated | |
378 | * stream, and vice versa if SSL_write() is called first. | |
379 | */ | |
22d53c88 HL |
380 | return ssl_base; |
381 | ||
38b051a1 | 382 | err: |
2dbc39de | 383 | if (qc != NULL) { |
629b408c HL |
384 | #if defined(OPENSSL_THREADS) |
385 | ossl_crypto_mutex_free(qc->mutex); | |
386 | #endif | |
2dbc39de HL |
387 | ossl_quic_channel_free(qc->ch); |
388 | SSL_free(qc->tls); | |
389 | } | |
22d53c88 | 390 | OPENSSL_free(qc); |
38b051a1 TM |
391 | return NULL; |
392 | } | |
393 | ||
22d53c88 | 394 | /* SSL_free */ |
a8489257 | 395 | QUIC_TAKES_LOCK |
22d53c88 HL |
396 | void ossl_quic_free(SSL *s) |
397 | { | |
072328dd | 398 | QCTX ctx; |
9cab4bd5 | 399 | int is_default; |
22d53c88 | 400 | |
072328dd HL |
401 | /* We should never be called on anything but a QSO. */ |
402 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
403 | return; |
404 | ||
22b1a96f HL |
405 | quic_lock(ctx.qc); |
406 | ||
2dbc39de HL |
407 | if (ctx.is_stream) { |
408 | /* | |
409 | * When a QSSO is freed, the XSO is freed immediately, because the XSO | |
410 | * itself only contains API personality layer data. However the | |
411 | * underlying QUIC_STREAM is not freed immediately but is instead marked | |
412 | * as deleted for later collection. | |
413 | */ | |
414 | ||
2dbc39de HL |
415 | assert(ctx.qc->num_xso > 0); |
416 | --ctx.qc->num_xso; | |
417 | ||
9aaafc26 | 418 | /* If a stream's send part has not been finished, auto-reset it. */ |
2f018d14 HL |
419 | if (( ctx.xso->stream->send_state == QUIC_SSTREAM_STATE_READY |
420 | || ctx.xso->stream->send_state == QUIC_SSTREAM_STATE_SEND) | |
9aaafc26 HL |
421 | && !ossl_quic_sstream_get_final_size(ctx.xso->stream->sstream, NULL)) |
422 | ossl_quic_stream_map_reset_stream_send_part(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
423 | ctx.xso->stream, 0); | |
2dbc39de | 424 | |
9aaafc26 | 425 | /* Do STOP_SENDING for the receive part, if applicable. */ |
2f018d14 HL |
426 | if ( ctx.xso->stream->recv_state == QUIC_RSTREAM_STATE_RECV |
427 | || ctx.xso->stream->recv_state == QUIC_RSTREAM_STATE_SIZE_KNOWN) | |
9aaafc26 HL |
428 | ossl_quic_stream_map_stop_sending_recv_part(ossl_quic_channel_get_qsm(ctx.qc->ch), |
429 | ctx.xso->stream, 0); | |
f20fdd16 HL |
430 | |
431 | /* Update stream state. */ | |
9aaafc26 HL |
432 | ctx.xso->stream->deleted = 1; |
433 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
f20fdd16 HL |
434 | ctx.xso->stream); |
435 | ||
9cab4bd5 | 436 | is_default = (ctx.xso == ctx.qc->default_xso); |
2dbc39de HL |
437 | quic_unlock(ctx.qc); |
438 | ||
9cab4bd5 HL |
439 | /* |
440 | * Unref the connection in most cases; the XSO has a ref to the QC and | |
441 | * not vice versa. But for a default XSO, to avoid circular references, | |
442 | * the QC refs the XSO but the XSO does not ref the QC. If we are the | |
443 | * default XSO, we only get here when the QC is being torn down anyway, | |
444 | * so don't call SSL_free(qc) as we are already in it. | |
445 | */ | |
446 | if (!is_default) | |
447 | SSL_free(&ctx.qc->ssl); | |
448 | ||
2dbc39de HL |
449 | /* Note: SSL_free calls OPENSSL_free(xso) for us */ |
450 | return; | |
451 | } | |
452 | ||
2dbc39de HL |
453 | /* |
454 | * Free the default XSO, if any. The QUIC_STREAM is not deleted at this | |
455 | * stage, but is freed during the channel free when the whole QSM is freed. | |
456 | */ | |
21c80696 HL |
457 | if (ctx.qc->default_xso != NULL) { |
458 | QUIC_XSO *xso = ctx.qc->default_xso; | |
459 | ||
460 | quic_unlock(ctx.qc); | |
461 | SSL_free(&xso->ssl); | |
462 | quic_lock(ctx.qc); | |
9cab4bd5 | 463 | ctx.qc->default_xso = NULL; |
21c80696 | 464 | } |
2dbc39de HL |
465 | |
466 | /* Ensure we have no remaining XSOs. */ | |
467 | assert(ctx.qc->num_xso == 0); | |
468 | ||
629b408c | 469 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
072328dd HL |
470 | if (ctx.qc->is_thread_assisted && ctx.qc->started) { |
471 | ossl_quic_thread_assist_wait_stopped(&ctx.qc->thread_assist); | |
472 | ossl_quic_thread_assist_cleanup(&ctx.qc->thread_assist); | |
dbe7b51a | 473 | } |
629b408c | 474 | #endif |
f2f7c4f1 | 475 | |
072328dd | 476 | ossl_quic_channel_free(ctx.qc->ch); |
22d53c88 | 477 | |
072328dd HL |
478 | BIO_free(ctx.qc->net_rbio); |
479 | BIO_free(ctx.qc->net_wbio); | |
d1ac77b1 | 480 | |
22d53c88 | 481 | /* Note: SSL_free calls OPENSSL_free(qc) for us */ |
a7f41885 | 482 | |
072328dd | 483 | SSL_free(ctx.qc->tls); |
45b7c7e0 | 484 | quic_unlock(ctx.qc); /* tsan doesn't like freeing locked mutexes */ |
629b408c | 485 | #if defined(OPENSSL_THREADS) |
45b7c7e0 | 486 | ossl_crypto_mutex_free(&ctx.qc->mutex); |
629b408c | 487 | #endif |
22d53c88 HL |
488 | } |
489 | ||
490 | /* SSL method init */ | |
38b051a1 | 491 | int ossl_quic_init(SSL *s) |
99e1cc7b | 492 | { |
22d53c88 HL |
493 | /* Same op as SSL_clear, forward the call. */ |
494 | return ossl_quic_clear(s); | |
99e1cc7b TM |
495 | } |
496 | ||
22d53c88 | 497 | /* SSL method deinit */ |
38b051a1 TM |
498 | void ossl_quic_deinit(SSL *s) |
499 | { | |
22d53c88 | 500 | /* No-op. */ |
38b051a1 TM |
501 | } |
502 | ||
5f69db39 | 503 | /* SSL_clear (ssl_reset method) */ |
22d53c88 HL |
504 | int ossl_quic_reset(SSL *s) |
505 | { | |
072328dd | 506 | QCTX ctx; |
22d53c88 | 507 | |
072328dd | 508 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
509 | return 0; |
510 | ||
5f69db39 HL |
511 | /* Not supported. */ |
512 | return 0; | |
22d53c88 HL |
513 | } |
514 | ||
5f69db39 | 515 | /* ssl_clear method (unused) */ |
22d53c88 | 516 | int ossl_quic_clear(SSL *s) |
99e1cc7b | 517 | { |
072328dd | 518 | QCTX ctx; |
38b051a1 | 519 | |
072328dd | 520 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
521 | return 0; |
522 | ||
c8b3fdc2 | 523 | /* TODO(QUIC): Currently a no-op. */ |
22d53c88 HL |
524 | return 1; |
525 | } | |
38b051a1 | 526 | |
e3e9794a HL |
527 | int ossl_quic_conn_set_override_now_cb(SSL *s, |
528 | OSSL_TIME (*now_cb)(void *arg), | |
529 | void *now_cb_arg) | |
b212d554 | 530 | { |
072328dd | 531 | QCTX ctx; |
b212d554 | 532 | |
072328dd | 533 | if (!expect_quic(s, &ctx)) |
e3e9794a HL |
534 | return 0; |
535 | ||
536 | quic_lock(ctx.qc); | |
072328dd HL |
537 | |
538 | ctx.qc->override_now_cb = now_cb; | |
539 | ctx.qc->override_now_cb_arg = now_cb_arg; | |
e3e9794a HL |
540 | |
541 | quic_unlock(ctx.qc); | |
542 | return 1; | |
b212d554 HL |
543 | } |
544 | ||
3b1ab5a3 HL |
545 | void ossl_quic_conn_force_assist_thread_wake(SSL *s) |
546 | { | |
072328dd HL |
547 | QCTX ctx; |
548 | ||
549 | if (!expect_quic(s, &ctx)) | |
550 | return; | |
3b1ab5a3 | 551 | |
629b408c | 552 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
072328dd HL |
553 | if (ctx.qc->is_thread_assisted && ctx.qc->started) |
554 | ossl_quic_thread_assist_notify_deadline_changed(&ctx.qc->thread_assist); | |
629b408c | 555 | #endif |
3b1ab5a3 HL |
556 | } |
557 | ||
995ff282 HL |
558 | QUIC_NEEDS_LOCK |
559 | static void qc_touch_default_xso(QUIC_CONNECTION *qc) | |
560 | { | |
561 | qc->default_xso_created = 1; | |
562 | qc_update_reject_policy(qc); | |
563 | } | |
564 | ||
9cab4bd5 HL |
565 | /* |
566 | * Changes default XSO. Allows caller to keep reference to the old default XSO | |
567 | * (if any). Reference to new XSO is transferred from caller. | |
568 | */ | |
995ff282 | 569 | QUIC_NEEDS_LOCK |
9cab4bd5 HL |
570 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
571 | int touch, | |
572 | QUIC_XSO **old_xso) | |
995ff282 | 573 | { |
9cab4bd5 HL |
574 | int refs; |
575 | ||
576 | *old_xso = NULL; | |
577 | ||
578 | if (qc->default_xso != xso) { | |
579 | *old_xso = qc->default_xso; /* transfer old XSO ref to caller */ | |
580 | ||
581 | qc->default_xso = xso; | |
582 | ||
583 | if (xso == NULL) { | |
584 | /* | |
585 | * Changing to not having a default XSO. XSO becomes standalone and | |
586 | * now has a ref to the QC. | |
587 | */ | |
588 | if (!ossl_assert(SSL_up_ref(&qc->ssl))) | |
589 | return; | |
590 | } else { | |
591 | /* | |
592 | * Changing from not having a default XSO to having one. The new XSO | |
593 | * will have had a reference to the QC we need to drop to avoid a | |
594 | * circular reference. | |
3a61a96c HL |
595 | * |
596 | * Currently we never change directly from one default XSO to | |
597 | * another, though this function would also still be correct if this | |
598 | * weren't the case. | |
9cab4bd5 | 599 | */ |
3a61a96c HL |
600 | assert(*old_xso == NULL); |
601 | ||
4eecc6aa | 602 | CRYPTO_DOWN_REF(&qc->ssl.references, &refs); |
9cab4bd5 HL |
603 | assert(refs > 0); |
604 | } | |
605 | } | |
606 | ||
995ff282 HL |
607 | if (touch) |
608 | qc_touch_default_xso(qc); | |
609 | } | |
610 | ||
9cab4bd5 HL |
611 | /* |
612 | * Changes default XSO, releasing the reference to any previous default XSO. | |
613 | * Reference to new XSO is transferred from caller. | |
614 | */ | |
615 | QUIC_NEEDS_LOCK | |
616 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch) | |
617 | { | |
618 | QUIC_XSO *old_xso = NULL; | |
619 | ||
620 | qc_set_default_xso_keep_ref(qc, xso, touch, &old_xso); | |
621 | ||
622 | if (old_xso != NULL) | |
623 | SSL_free(&old_xso->ssl); | |
624 | } | |
625 | ||
db2f98c4 HL |
626 | QUIC_NEEDS_LOCK |
627 | static void xso_update_options(QUIC_XSO *xso) | |
628 | { | |
629 | int cleanse = ((xso->ssl_options & SSL_OP_CLEANSE_PLAINTEXT) != 0); | |
630 | ||
631 | if (xso->stream->rstream != NULL) | |
632 | ossl_quic_rstream_set_cleanse(xso->stream->rstream, cleanse); | |
633 | ||
634 | if (xso->stream->sstream != NULL) | |
635 | ossl_quic_sstream_set_cleanse(xso->stream->sstream, cleanse); | |
636 | } | |
637 | ||
638 | /* | |
639 | * SSL_set_options | |
640 | * --------------- | |
641 | * | |
642 | * Setting options on a QCSO | |
643 | * - configures the handshake-layer options; | |
644 | * - configures the default data-plane options for new streams; | |
645 | * - configures the data-plane options on the default XSO, if there is one. | |
646 | * | |
647 | * Setting options on a QSSO | |
648 | * - configures data-plane options for that stream only. | |
649 | */ | |
d6e7ebba | 650 | QUIC_TAKES_LOCK |
f0d9757c HL |
651 | static uint64_t quic_mask_or_options(SSL *ssl, uint64_t mask_value, uint64_t or_value) |
652 | { | |
653 | QCTX ctx; | |
db2f98c4 | 654 | uint64_t hs_mask_value, hs_or_value, ret; |
f0d9757c | 655 | |
d6e7ebba | 656 | if (!expect_quic(ssl, &ctx)) |
f0d9757c HL |
657 | return 0; |
658 | ||
d6e7ebba HL |
659 | quic_lock(ctx.qc); |
660 | ||
db2f98c4 HL |
661 | if (!ctx.is_stream) { |
662 | /* | |
663 | * If we were called on the connection, we apply any handshake option | |
664 | * changes. | |
665 | */ | |
666 | hs_mask_value = (mask_value & OSSL_QUIC_PERMITTED_OPTIONS_CONN); | |
667 | hs_or_value = (or_value & OSSL_QUIC_PERMITTED_OPTIONS_CONN); | |
f0d9757c | 668 | |
db2f98c4 HL |
669 | SSL_clear_options(ctx.qc->tls, hs_mask_value); |
670 | SSL_set_options(ctx.qc->tls, hs_or_value); | |
d6e7ebba | 671 | |
db2f98c4 HL |
672 | /* Update defaults for new streams. */ |
673 | ctx.qc->default_ssl_options | |
674 | = ((ctx.qc->default_ssl_options & ~mask_value) | or_value) | |
675 | & OSSL_QUIC_PERMITTED_OPTIONS; | |
676 | } | |
18ca1c8f | 677 | |
db2f98c4 HL |
678 | if (ctx.xso != NULL) { |
679 | ctx.xso->ssl_options | |
680 | = ((ctx.xso->ssl_options & ~mask_value) | or_value) | |
681 | & OSSL_QUIC_PERMITTED_OPTIONS_STREAM; | |
682 | ||
683 | xso_update_options(ctx.xso); | |
18ca1c8f | 684 | } |
f0d9757c | 685 | |
db2f98c4 HL |
686 | ret = ctx.is_stream ? ctx.xso->ssl_options : ctx.qc->default_ssl_options; |
687 | ||
f0d9757c | 688 | quic_unlock(ctx.qc); |
db2f98c4 | 689 | return ret; |
f0d9757c HL |
690 | } |
691 | ||
692 | uint64_t ossl_quic_set_options(SSL *ssl, uint64_t options) | |
693 | { | |
d6e7ebba | 694 | return quic_mask_or_options(ssl, 0, options); |
f0d9757c HL |
695 | } |
696 | ||
697 | /* SSL_clear_options */ | |
698 | uint64_t ossl_quic_clear_options(SSL *ssl, uint64_t options) | |
699 | { | |
700 | return quic_mask_or_options(ssl, options, 0); | |
701 | } | |
702 | ||
703 | /* SSL_get_options */ | |
704 | uint64_t ossl_quic_get_options(const SSL *ssl) | |
705 | { | |
706 | return quic_mask_or_options((SSL *)ssl, 0, 0); | |
707 | } | |
708 | ||
22d53c88 HL |
709 | /* |
710 | * QUIC Front-End I/O API: Network BIO Configuration | |
711 | * ================================================= | |
712 | * | |
713 | * Handling the different BIOs is difficult: | |
714 | * | |
715 | * - It is more or less a requirement that we use non-blocking network I/O; | |
716 | * we need to be able to have timeouts on recv() calls, and make best effort | |
717 | * (non blocking) send() and recv() calls. | |
718 | * | |
719 | * The only sensible way to do this is to configure the socket into | |
720 | * non-blocking mode. We could try to do select() before calling send() or | |
721 | * recv() to get a guarantee that the call will not block, but this will | |
722 | * probably run into issues with buggy OSes which generate spurious socket | |
723 | * readiness events. In any case, relying on this to work reliably does not | |
724 | * seem sane. | |
725 | * | |
726 | * Timeouts could be handled via setsockopt() socket timeout options, but | |
727 | * this depends on OS support and adds another syscall to every network I/O | |
728 | * operation. It also has obvious thread safety concerns if we want to move | |
729 | * to concurrent use of a single socket at some later date. | |
730 | * | |
731 | * Some OSes support a MSG_DONTWAIT flag which allows a single I/O option to | |
732 | * be made non-blocking. However some OSes (e.g. Windows) do not support | |
733 | * this, so we cannot rely on this. | |
734 | * | |
735 | * As such, we need to configure any FD in non-blocking mode. This may | |
736 | * confound users who pass a blocking socket to libssl. However, in practice | |
737 | * it would be extremely strange for a user of QUIC to pass an FD to us, | |
738 | * then also try and send receive traffic on the same socket(!). Thus the | |
739 | * impact of this should be limited, and can be documented. | |
740 | * | |
741 | * - We support both blocking and non-blocking operation in terms of the API | |
742 | * presented to the user. One prospect is to set the blocking mode based on | |
743 | * whether the socket passed to us was already in blocking mode. However, | |
744 | * Windows has no API for determining if a socket is in blocking mode (!), | |
745 | * therefore this cannot be done portably. Currently therefore we expose an | |
746 | * explicit API call to set this, and default to blocking mode. | |
747 | * | |
748 | * - We need to determine our initial destination UDP address. The "natural" | |
749 | * way for a user to do this is to set the peer variable on a BIO_dgram. | |
750 | * However, this has problems because BIO_dgram's peer variable is used for | |
751 | * both transmission and reception. This means it can be constantly being | |
752 | * changed to a malicious value (e.g. if some random unrelated entity on the | |
753 | * network starts sending traffic to us) on every read call. This is not a | |
754 | * direct issue because we use the 'stateless' BIO_sendmmsg and BIO_recvmmsg | |
755 | * calls only, which do not use this variable. However, we do need to let | |
756 | * the user specify the peer in a 'normal' manner. The compromise here is | |
757 | * that we grab the current peer value set at the time the write BIO is set | |
758 | * and do not read the value again. | |
759 | * | |
760 | * - We also need to support memory BIOs (e.g. BIO_dgram_pair) or custom BIOs. | |
761 | * Currently we do this by only supporting non-blocking mode. | |
762 | * | |
763 | */ | |
764 | ||
765 | /* | |
766 | * Determines what initial destination UDP address we should use, if possible. | |
767 | * If this fails the client must set the destination address manually, or use a | |
768 | * BIO which does not need a destination address. | |
769 | */ | |
770 | static int csm_analyse_init_peer_addr(BIO *net_wbio, BIO_ADDR *peer) | |
771 | { | |
75b2920a | 772 | if (BIO_dgram_get_peer(net_wbio, peer) <= 0) |
22d53c88 HL |
773 | return 0; |
774 | ||
775 | return 1; | |
776 | } | |
777 | ||
072328dd | 778 | void ossl_quic_conn_set0_net_rbio(SSL *s, BIO *net_rbio) |
22d53c88 | 779 | { |
072328dd HL |
780 | QCTX ctx; |
781 | ||
782 | if (!expect_quic(s, &ctx)) | |
783 | return; | |
784 | ||
785 | if (ctx.qc->net_rbio == net_rbio) | |
38b051a1 | 786 | return; |
38b051a1 | 787 | |
23c04709 | 788 | if (!ossl_quic_channel_set_net_rbio(ctx.qc->ch, net_rbio)) |
22d53c88 HL |
789 | return; |
790 | ||
072328dd HL |
791 | BIO_free(ctx.qc->net_rbio); |
792 | ctx.qc->net_rbio = net_rbio; | |
22d53c88 HL |
793 | |
794 | /* | |
795 | * If what we have is not pollable (e.g. a BIO_dgram_pair) disable blocking | |
796 | * mode as we do not support it for non-pollable BIOs. | |
797 | */ | |
798 | if (net_rbio != NULL) { | |
799 | BIO_POLL_DESCRIPTOR d = {0}; | |
800 | ||
801 | if (!BIO_get_rpoll_descriptor(net_rbio, &d) | |
802 | || d.type != BIO_POLL_DESCRIPTOR_TYPE_SOCK_FD) { | |
cb5c208b HL |
803 | ctx.qc->blocking = 0; |
804 | ctx.qc->default_blocking = 0; | |
072328dd | 805 | ctx.qc->can_poll_net_rbio = 0; |
22d53c88 | 806 | } else { |
072328dd | 807 | ctx.qc->can_poll_net_rbio = 1; |
22d53c88 HL |
808 | } |
809 | } | |
99e1cc7b TM |
810 | } |
811 | ||
072328dd | 812 | void ossl_quic_conn_set0_net_wbio(SSL *s, BIO *net_wbio) |
38b051a1 | 813 | { |
072328dd HL |
814 | QCTX ctx; |
815 | ||
816 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
817 | return; |
818 | ||
072328dd | 819 | if (ctx.qc->net_wbio == net_wbio) |
22d53c88 HL |
820 | return; |
821 | ||
23c04709 | 822 | if (!ossl_quic_channel_set_net_wbio(ctx.qc->ch, net_wbio)) |
072328dd HL |
823 | return; |
824 | ||
825 | BIO_free(ctx.qc->net_wbio); | |
826 | ctx.qc->net_wbio = net_wbio; | |
22d53c88 HL |
827 | |
828 | if (net_wbio != NULL) { | |
829 | BIO_POLL_DESCRIPTOR d = {0}; | |
38b051a1 | 830 | |
22d53c88 HL |
831 | if (!BIO_get_wpoll_descriptor(net_wbio, &d) |
832 | || d.type != BIO_POLL_DESCRIPTOR_TYPE_SOCK_FD) { | |
cb5c208b HL |
833 | ctx.qc->blocking = 0; |
834 | ctx.qc->default_blocking = 0; | |
072328dd | 835 | ctx.qc->can_poll_net_wbio = 0; |
22d53c88 | 836 | } else { |
072328dd | 837 | ctx.qc->can_poll_net_wbio = 1; |
22d53c88 | 838 | } |
38b051a1 | 839 | |
22d53c88 HL |
840 | /* |
841 | * If we do not have a peer address yet, and we have not started trying | |
842 | * to connect yet, try to autodetect one. | |
843 | */ | |
072328dd HL |
844 | if (BIO_ADDR_family(&ctx.qc->init_peer_addr) == AF_UNSPEC |
845 | && !ctx.qc->started) { | |
846 | if (!csm_analyse_init_peer_addr(net_wbio, &ctx.qc->init_peer_addr)) | |
22d53c88 | 847 | /* best effort */ |
072328dd | 848 | BIO_ADDR_clear(&ctx.qc->init_peer_addr); |
22d53c88 | 849 | |
23c04709 HL |
850 | ossl_quic_channel_set_peer_addr(ctx.qc->ch, |
851 | &ctx.qc->init_peer_addr); | |
22d53c88 | 852 | } |
38b051a1 | 853 | } |
22d53c88 | 854 | } |
38b051a1 | 855 | |
072328dd | 856 | BIO *ossl_quic_conn_get_net_rbio(const SSL *s) |
22d53c88 | 857 | { |
072328dd HL |
858 | QCTX ctx; |
859 | ||
860 | if (!expect_quic(s, &ctx)) | |
861 | return NULL; | |
862 | ||
863 | return ctx.qc->net_rbio; | |
38b051a1 TM |
864 | } |
865 | ||
072328dd | 866 | BIO *ossl_quic_conn_get_net_wbio(const SSL *s) |
22d53c88 | 867 | { |
072328dd HL |
868 | QCTX ctx; |
869 | ||
870 | if (!expect_quic(s, &ctx)) | |
871 | return NULL; | |
872 | ||
873 | return ctx.qc->net_wbio; | |
22d53c88 HL |
874 | } |
875 | ||
072328dd | 876 | int ossl_quic_conn_get_blocking_mode(const SSL *s) |
99e1cc7b | 877 | { |
072328dd HL |
878 | QCTX ctx; |
879 | ||
880 | if (!expect_quic(s, &ctx)) | |
881 | return 0; | |
882 | ||
cb5c208b HL |
883 | if (ctx.is_stream) |
884 | return ctx.xso->blocking; | |
885 | ||
072328dd | 886 | return ctx.qc->blocking; |
22d53c88 HL |
887 | } |
888 | ||
072328dd | 889 | int ossl_quic_conn_set_blocking_mode(SSL *s, int blocking) |
22d53c88 | 890 | { |
072328dd HL |
891 | QCTX ctx; |
892 | ||
893 | if (!expect_quic(s, &ctx)) | |
894 | return 0; | |
895 | ||
22d53c88 HL |
896 | /* Cannot enable blocking mode if we do not have pollable FDs. */ |
897 | if (blocking != 0 && | |
072328dd | 898 | (!ctx.qc->can_poll_net_rbio || !ctx.qc->can_poll_net_wbio)) |
faa3a180 | 899 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_UNSUPPORTED, NULL); |
22d53c88 | 900 | |
cb5c208b HL |
901 | if (!ctx.is_stream) { |
902 | /* | |
903 | * If called on a QCSO, update default and connection-level blocking | |
904 | * modes. | |
905 | */ | |
906 | ctx.qc->blocking = (blocking != 0); | |
907 | ctx.qc->default_blocking = ctx.qc->blocking; | |
908 | } | |
909 | ||
910 | if (ctx.xso != NULL) | |
911 | /* | |
912 | * If called on a QSSO or QCSO with a default XSO, update blocking | |
913 | * mode. | |
914 | */ | |
915 | ctx.xso->blocking = (blocking != 0); | |
916 | ||
99e1cc7b TM |
917 | return 1; |
918 | } | |
919 | ||
072328dd | 920 | int ossl_quic_conn_set_initial_peer_addr(SSL *s, |
22d53c88 | 921 | const BIO_ADDR *peer_addr) |
99e1cc7b | 922 | { |
072328dd HL |
923 | QCTX ctx; |
924 | ||
925 | if (!expect_quic(s, &ctx)) | |
926 | return 0; | |
927 | ||
928 | if (ctx.qc->started) | |
faa3a180 | 929 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
22d53c88 | 930 | NULL); |
38b051a1 | 931 | |
22d53c88 | 932 | if (peer_addr == NULL) { |
072328dd | 933 | BIO_ADDR_clear(&ctx.qc->init_peer_addr); |
22d53c88 HL |
934 | return 1; |
935 | } | |
38b051a1 | 936 | |
072328dd | 937 | ctx.qc->init_peer_addr = *peer_addr; |
99e1cc7b TM |
938 | return 1; |
939 | } | |
940 | ||
22d53c88 HL |
941 | /* |
942 | * QUIC Front-End I/O API: Asynchronous I/O Management | |
943 | * =================================================== | |
944 | * | |
6084e04b HL |
945 | * (BIO/)SSL_handle_events => ossl_quic_handle_events |
946 | * (BIO/)SSL_get_event_timeout => ossl_quic_get_event_timeout | |
22d53c88 HL |
947 | * (BIO/)SSL_get_poll_fd => ossl_quic_get_poll_fd |
948 | * | |
949 | */ | |
950 | ||
951 | /* Returns 1 if the connection is being used in blocking mode. */ | |
cb5c208b | 952 | static int qc_blocking_mode(const QUIC_CONNECTION *qc) |
99e1cc7b | 953 | { |
22d53c88 HL |
954 | return qc->blocking; |
955 | } | |
38b051a1 | 956 | |
cb5c208b HL |
957 | static int xso_blocking_mode(const QUIC_XSO *xso) |
958 | { | |
959 | return xso->blocking | |
960 | && xso->conn->can_poll_net_rbio | |
961 | && xso->conn->can_poll_net_wbio; | |
962 | } | |
963 | ||
b626a0f1 | 964 | /* SSL_handle_events; performs QUIC I/O and timeout processing. */ |
a8489257 | 965 | QUIC_TAKES_LOCK |
6084e04b | 966 | int ossl_quic_handle_events(SSL *s) |
22d53c88 | 967 | { |
072328dd HL |
968 | QCTX ctx; |
969 | ||
970 | if (!expect_quic(s, &ctx)) | |
971 | return 0; | |
972 | ||
973 | quic_lock(ctx.qc); | |
072328dd HL |
974 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
975 | quic_unlock(ctx.qc); | |
99e1cc7b TM |
976 | return 1; |
977 | } | |
978 | ||
22d53c88 | 979 | /* |
6084e04b | 980 | * SSL_get_event_timeout. Get the time in milliseconds until the SSL object |
b626a0f1 HL |
981 | * should next have events handled by the application by calling |
982 | * SSL_handle_events(). tv is set to 0 if the object should have events handled | |
983 | * immediately. If no timeout is currently active, *is_infinite is set to 1 and | |
984 | * the value of *tv is undefined. | |
22d53c88 | 985 | */ |
a8489257 | 986 | QUIC_TAKES_LOCK |
7ea49713 | 987 | int ossl_quic_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite) |
99e1cc7b | 988 | { |
072328dd | 989 | QCTX ctx; |
a1660c94 | 990 | OSSL_TIME deadline = ossl_time_infinite(); |
e44795bd | 991 | |
072328dd HL |
992 | if (!expect_quic(s, &ctx)) |
993 | return 0; | |
a8489257 | 994 | |
072328dd HL |
995 | quic_lock(ctx.qc); |
996 | ||
23c04709 HL |
997 | deadline |
998 | = ossl_quic_reactor_get_tick_deadline(ossl_quic_channel_get_reactor(ctx.qc->ch)); | |
22d53c88 HL |
999 | |
1000 | if (ossl_time_is_infinite(deadline)) { | |
7ea49713 HL |
1001 | *is_infinite = 1; |
1002 | ||
1003 | /* | |
1004 | * Robustness against faulty applications that don't check *is_infinite; | |
1005 | * harmless long timeout. | |
1006 | */ | |
1007 | tv->tv_sec = 1000000; | |
22d53c88 | 1008 | tv->tv_usec = 0; |
7ea49713 | 1009 | |
072328dd | 1010 | quic_unlock(ctx.qc); |
22d53c88 HL |
1011 | return 1; |
1012 | } | |
1013 | ||
e3e9794a | 1014 | *tv = ossl_time_to_timeval(ossl_time_subtract(deadline, get_time(ctx.qc))); |
7ea49713 | 1015 | *is_infinite = 0; |
072328dd | 1016 | quic_unlock(ctx.qc); |
22d53c88 HL |
1017 | return 1; |
1018 | } | |
1019 | ||
1020 | /* SSL_get_rpoll_descriptor */ | |
072328dd | 1021 | int ossl_quic_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
22d53c88 | 1022 | { |
072328dd HL |
1023 | QCTX ctx; |
1024 | ||
1025 | if (!expect_quic(s, &ctx)) | |
e44795bd TM |
1026 | return 0; |
1027 | ||
072328dd HL |
1028 | if (desc == NULL || ctx.qc->net_rbio == NULL) |
1029 | return 0; | |
1030 | ||
1031 | return BIO_get_rpoll_descriptor(ctx.qc->net_rbio, desc); | |
99e1cc7b TM |
1032 | } |
1033 | ||
22d53c88 | 1034 | /* SSL_get_wpoll_descriptor */ |
072328dd | 1035 | int ossl_quic_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
99e1cc7b | 1036 | { |
072328dd HL |
1037 | QCTX ctx; |
1038 | ||
1039 | if (!expect_quic(s, &ctx)) | |
1040 | return 0; | |
1041 | ||
1042 | if (desc == NULL || ctx.qc->net_wbio == NULL) | |
22d53c88 HL |
1043 | return 0; |
1044 | ||
072328dd | 1045 | return BIO_get_wpoll_descriptor(ctx.qc->net_wbio, desc); |
99e1cc7b TM |
1046 | } |
1047 | ||
b639475a | 1048 | /* SSL_net_read_desired */ |
a8489257 | 1049 | QUIC_TAKES_LOCK |
072328dd | 1050 | int ossl_quic_get_net_read_desired(SSL *s) |
99e1cc7b | 1051 | { |
072328dd | 1052 | QCTX ctx; |
a8489257 HL |
1053 | int ret; |
1054 | ||
072328dd HL |
1055 | if (!expect_quic(s, &ctx)) |
1056 | return 0; | |
1057 | ||
1058 | quic_lock(ctx.qc); | |
072328dd HL |
1059 | ret = ossl_quic_reactor_net_read_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
1060 | quic_unlock(ctx.qc); | |
a8489257 | 1061 | return ret; |
22d53c88 | 1062 | } |
e44795bd | 1063 | |
b639475a | 1064 | /* SSL_net_write_desired */ |
a8489257 | 1065 | QUIC_TAKES_LOCK |
072328dd | 1066 | int ossl_quic_get_net_write_desired(SSL *s) |
22d53c88 | 1067 | { |
a8489257 | 1068 | int ret; |
072328dd HL |
1069 | QCTX ctx; |
1070 | ||
1071 | if (!expect_quic(s, &ctx)) | |
1072 | return 0; | |
a8489257 | 1073 | |
072328dd | 1074 | quic_lock(ctx.qc); |
072328dd HL |
1075 | ret = ossl_quic_reactor_net_write_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
1076 | quic_unlock(ctx.qc); | |
a8489257 | 1077 | return ret; |
99e1cc7b TM |
1078 | } |
1079 | ||
22d53c88 HL |
1080 | /* |
1081 | * QUIC Front-End I/O API: Connection Lifecycle Operations | |
1082 | * ======================================================= | |
1083 | * | |
1084 | * SSL_do_handshake => ossl_quic_do_handshake | |
1085 | * SSL_set_connect_state => ossl_quic_set_connect_state | |
1086 | * SSL_set_accept_state => ossl_quic_set_accept_state | |
1087 | * SSL_shutdown => ossl_quic_shutdown | |
1088 | * SSL_ctrl => ossl_quic_ctrl | |
1089 | * (BIO/)SSL_connect => ossl_quic_connect | |
1090 | * (BIO/)SSL_accept => ossl_quic_accept | |
1091 | * | |
1092 | */ | |
1093 | ||
1094 | /* SSL_shutdown */ | |
e8043229 | 1095 | static int quic_shutdown_wait(void *arg) |
99e1cc7b | 1096 | { |
e8043229 | 1097 | QUIC_CONNECTION *qc = arg; |
22d53c88 | 1098 | |
23c04709 | 1099 | return ossl_quic_channel_is_terminated(qc->ch); |
e8043229 | 1100 | } |
22d53c88 | 1101 | |
a8489257 | 1102 | QUIC_TAKES_LOCK |
072328dd | 1103 | int ossl_quic_conn_shutdown(SSL *s, uint64_t flags, |
e8043229 HL |
1104 | const SSL_SHUTDOWN_EX_ARGS *args, |
1105 | size_t args_len) | |
1106 | { | |
a8489257 | 1107 | int ret; |
072328dd | 1108 | QCTX ctx; |
a8489257 | 1109 | |
072328dd HL |
1110 | if (!expect_quic(s, &ctx)) |
1111 | return 0; | |
1112 | ||
cb5c208b HL |
1113 | if (ctx.is_stream) |
1114 | /* TODO(QUIC): Semantics currently undefined for QSSOs */ | |
1115 | return -1; | |
1116 | ||
072328dd | 1117 | quic_lock(ctx.qc); |
a8489257 | 1118 | |
072328dd | 1119 | ossl_quic_channel_local_close(ctx.qc->ch, |
e8043229 HL |
1120 | args != NULL ? args->quic_error_code : 0); |
1121 | ||
1d40b151 | 1122 | /* TODO(QUIC): !SSL_SHUTDOWN_FLAG_NO_STREAM_FLUSH */ |
e8043229 | 1123 | |
072328dd HL |
1124 | if (ossl_quic_channel_is_terminated(ctx.qc->ch)) { |
1125 | quic_unlock(ctx.qc); | |
e8043229 | 1126 | return 1; |
a8489257 | 1127 | } |
e8043229 | 1128 | |
cb5c208b | 1129 | if (qc_blocking_mode(ctx.qc) && (flags & SSL_SHUTDOWN_FLAG_RAPID) == 0) |
072328dd | 1130 | block_until_pred(ctx.qc, quic_shutdown_wait, ctx.qc, 0); |
e8043229 | 1131 | else |
072328dd | 1132 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
e8043229 | 1133 | |
072328dd HL |
1134 | ret = ossl_quic_channel_is_terminated(ctx.qc->ch); |
1135 | quic_unlock(ctx.qc); | |
a8489257 | 1136 | return ret; |
99e1cc7b TM |
1137 | } |
1138 | ||
22d53c88 | 1139 | /* SSL_ctrl */ |
e44795bd | 1140 | long ossl_quic_ctrl(SSL *s, int cmd, long larg, void *parg) |
99e1cc7b | 1141 | { |
072328dd | 1142 | QCTX ctx; |
38b051a1 | 1143 | |
072328dd | 1144 | if (!expect_quic(s, &ctx)) |
38b051a1 TM |
1145 | return 0; |
1146 | ||
22d53c88 HL |
1147 | switch (cmd) { |
1148 | case SSL_CTRL_MODE: | |
cb5c208b HL |
1149 | /* If called on a QCSO, update the default mode. */ |
1150 | if (!ctx.is_stream) | |
1151 | ctx.qc->default_ssl_mode |= (uint32_t)larg; | |
1152 | ||
1153 | /* | |
1154 | * If we were called on a QSSO or have a default stream, we also update | |
1155 | * that. | |
1156 | */ | |
1157 | if (ctx.xso != NULL) { | |
1158 | /* Cannot enable EPW while AON write in progress. */ | |
1159 | if (ctx.xso->aon_write_in_progress) | |
1160 | larg &= ~SSL_MODE_ENABLE_PARTIAL_WRITE; | |
1161 | ||
1162 | ctx.xso->ssl_mode |= (uint32_t)larg; | |
1163 | return ctx.xso->ssl_mode; | |
1164 | } | |
dfc227bd | 1165 | |
cb5c208b | 1166 | return ctx.qc->default_ssl_mode; |
22d53c88 | 1167 | case SSL_CTRL_CLEAR_MODE: |
cb5c208b HL |
1168 | if (!ctx.is_stream) |
1169 | ctx.qc->default_ssl_mode &= ~(uint32_t)larg; | |
1170 | ||
1171 | if (ctx.xso != NULL) { | |
1172 | ctx.xso->ssl_mode &= ~(uint32_t)larg; | |
1173 | return ctx.xso->ssl_mode; | |
1174 | } | |
1175 | ||
1176 | return ctx.qc->default_ssl_mode; | |
63dfde87 MC |
1177 | |
1178 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
5cf99b40 | 1179 | ossl_quic_channel_set_msg_callback_arg(ctx.qc->ch, parg); |
63dfde87 MC |
1180 | /* This ctrl also needs to be passed to the internal SSL object */ |
1181 | return SSL_ctrl(ctx.qc->tls, cmd, larg, parg); | |
1182 | ||
2f90ea3d HL |
1183 | case DTLS_CTRL_GET_TIMEOUT: /* DTLSv1_get_timeout */ |
1184 | { | |
1185 | int is_infinite; | |
1186 | ||
1187 | if (!ossl_quic_get_event_timeout(s, parg, &is_infinite)) | |
1188 | return 0; | |
1189 | ||
1190 | return !is_infinite; | |
1191 | } | |
1192 | case DTLS_CTRL_HANDLE_TIMEOUT: /* DTLSv1_handle_timeout */ | |
1193 | /* For legacy compatibility with DTLS calls. */ | |
1194 | return ossl_quic_handle_events(s) == 1 ? 1 : -1; | |
22d53c88 | 1195 | default: |
f8ffab0d | 1196 | /* Probably a TLS related ctrl. Defer to our internal SSL object */ |
072328dd | 1197 | return SSL_ctrl(ctx.qc->tls, cmd, larg, parg); |
08e49012 | 1198 | } |
22d53c88 HL |
1199 | } |
1200 | ||
1201 | /* SSL_set_connect_state */ | |
072328dd | 1202 | void ossl_quic_set_connect_state(SSL *s) |
22d53c88 | 1203 | { |
072328dd HL |
1204 | QCTX ctx; |
1205 | ||
1206 | if (!expect_quic(s, &ctx)) | |
1207 | return; | |
1208 | ||
22d53c88 | 1209 | /* Cannot be changed after handshake started */ |
cb5c208b | 1210 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1211 | return; |
1212 | ||
dfb9ae14 | 1213 | ctx.qc->as_server_state = 0; |
22d53c88 HL |
1214 | } |
1215 | ||
1216 | /* SSL_set_accept_state */ | |
072328dd | 1217 | void ossl_quic_set_accept_state(SSL *s) |
22d53c88 | 1218 | { |
072328dd HL |
1219 | QCTX ctx; |
1220 | ||
1221 | if (!expect_quic(s, &ctx)) | |
1222 | return; | |
1223 | ||
22d53c88 | 1224 | /* Cannot be changed after handshake started */ |
cb5c208b | 1225 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1226 | return; |
1227 | ||
dfb9ae14 | 1228 | ctx.qc->as_server_state = 1; |
22d53c88 HL |
1229 | } |
1230 | ||
1231 | /* SSL_do_handshake */ | |
1232 | struct quic_handshake_wait_args { | |
1233 | QUIC_CONNECTION *qc; | |
1234 | }; | |
1235 | ||
1236 | static int quic_handshake_wait(void *arg) | |
1237 | { | |
1238 | struct quic_handshake_wait_args *args = arg; | |
1239 | ||
1240 | if (!ossl_quic_channel_is_active(args->qc->ch)) | |
1241 | return -1; | |
1242 | ||
1243 | if (ossl_quic_channel_is_handshake_complete(args->qc->ch)) | |
1244 | return 1; | |
1245 | ||
99e1cc7b TM |
1246 | return 0; |
1247 | } | |
1248 | ||
22d53c88 | 1249 | static int configure_channel(QUIC_CONNECTION *qc) |
99e1cc7b | 1250 | { |
22d53c88 | 1251 | assert(qc->ch != NULL); |
08e49012 | 1252 | |
d1ac77b1 HL |
1253 | if (!ossl_quic_channel_set_net_rbio(qc->ch, qc->net_rbio) |
1254 | || !ossl_quic_channel_set_net_wbio(qc->ch, qc->net_wbio) | |
22d53c88 HL |
1255 | || !ossl_quic_channel_set_peer_addr(qc->ch, &qc->init_peer_addr)) |
1256 | return 0; | |
1257 | ||
1258 | return 1; | |
1259 | } | |
1260 | ||
4847599b | 1261 | QUIC_NEEDS_LOCK |
23c04709 | 1262 | static int create_channel(QUIC_CONNECTION *qc) |
22d53c88 HL |
1263 | { |
1264 | QUIC_CHANNEL_ARGS args = {0}; | |
1265 | ||
5cf99b40 MC |
1266 | args.libctx = qc->ssl.ctx->libctx; |
1267 | args.propq = qc->ssl.ctx->propq; | |
1268 | args.is_server = qc->as_server; | |
1269 | args.tls = qc->tls; | |
1270 | args.mutex = qc->mutex; | |
e3e9794a HL |
1271 | args.now_cb = get_time_cb; |
1272 | args.now_cb_arg = qc; | |
22d53c88 HL |
1273 | |
1274 | qc->ch = ossl_quic_channel_new(&args); | |
1275 | if (qc->ch == NULL) | |
1276 | return 0; | |
1277 | ||
e8043229 HL |
1278 | return 1; |
1279 | } | |
1280 | ||
1281 | /* | |
1282 | * Creates a channel and configures it with the information we have accumulated | |
1283 | * via calls made to us from the application prior to starting a handshake | |
1284 | * attempt. | |
1285 | */ | |
4847599b | 1286 | QUIC_NEEDS_LOCK |
23c04709 | 1287 | static int ensure_channel_started(QUIC_CONNECTION *qc) |
e8043229 | 1288 | { |
ffce2946 | 1289 | if (!qc->started) { |
ffce2946 HL |
1290 | if (!configure_channel(qc) |
1291 | || !ossl_quic_channel_start(qc->ch)) | |
1292 | goto err; | |
f2f7c4f1 | 1293 | |
629b408c | 1294 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
ffce2946 HL |
1295 | if (qc->is_thread_assisted) |
1296 | if (!ossl_quic_thread_assist_init_start(&qc->thread_assist, qc->ch)) | |
1297 | goto err; | |
629b408c | 1298 | #endif |
ffce2946 HL |
1299 | } |
1300 | ||
22d53c88 HL |
1301 | qc->started = 1; |
1302 | return 1; | |
f2f7c4f1 HL |
1303 | |
1304 | err: | |
1305 | ossl_quic_channel_free(qc->ch); | |
1306 | qc->ch = NULL; | |
1307 | return 0; | |
99e1cc7b TM |
1308 | } |
1309 | ||
4a530180 | 1310 | QUIC_NEEDS_LOCK |
faa3a180 | 1311 | static int quic_do_handshake(QCTX *ctx) |
99e1cc7b | 1312 | { |
22d53c88 | 1313 | int ret; |
faa3a180 | 1314 | QUIC_CONNECTION *qc = ctx->qc; |
22d53c88 | 1315 | |
23c04709 | 1316 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
ca41f6b7 | 1317 | /* Handshake already completed. */ |
4a530180 | 1318 | return 1; |
ca41f6b7 | 1319 | |
23c04709 | 1320 | if (ossl_quic_channel_is_term_any(qc->ch)) |
faa3a180 | 1321 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 1322 | |
ca41f6b7 | 1323 | if (BIO_ADDR_family(&qc->init_peer_addr) == AF_UNSPEC) { |
22d53c88 | 1324 | /* Peer address must have been set. */ |
faa3a180 | 1325 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_REMOTE_PEER_ADDRESS_NOT_SET, NULL); |
4a530180 | 1326 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1327 | } |
22d53c88 | 1328 | |
dfb9ae14 | 1329 | if (qc->as_server != qc->as_server_state) { |
23c04709 | 1330 | /* TODO(QUIC): Must match the method used to create the QCSO */ |
faa3a180 | 1331 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
4a530180 | 1332 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1333 | } |
22d53c88 | 1334 | |
ca41f6b7 | 1335 | if (qc->net_rbio == NULL || qc->net_wbio == NULL) { |
22d53c88 | 1336 | /* Need read and write BIOs. */ |
faa3a180 | 1337 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BIO_NOT_SET, NULL); |
4a530180 | 1338 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1339 | } |
22d53c88 HL |
1340 | |
1341 | /* | |
1342 | * Start connection process. Note we may come here multiple times in | |
1343 | * non-blocking mode, which is fine. | |
1344 | */ | |
23c04709 | 1345 | if (!ensure_channel_started(qc)) { |
faa3a180 | 1346 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
4a530180 | 1347 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1348 | } |
22d53c88 | 1349 | |
4a530180 | 1350 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
22d53c88 | 1351 | /* The handshake is now done. */ |
4a530180 | 1352 | return 1; |
22d53c88 | 1353 | |
cb5c208b | 1354 | if (qc_blocking_mode(qc)) { |
22d53c88 HL |
1355 | /* In blocking mode, wait for the handshake to complete. */ |
1356 | struct quic_handshake_wait_args args; | |
1357 | ||
1358 | args.qc = qc; | |
1359 | ||
1360 | ret = block_until_pred(qc, quic_handshake_wait, &args, 0); | |
ca41f6b7 | 1361 | if (!ossl_quic_channel_is_active(qc->ch)) { |
faa3a180 | 1362 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
4a530180 | 1363 | return 0; /* Shutdown before completion */ |
ca41f6b7 | 1364 | } else if (ret <= 0) { |
faa3a180 | 1365 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
4a530180 | 1366 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1367 | } |
22d53c88 HL |
1368 | |
1369 | assert(ossl_quic_channel_is_handshake_complete(qc->ch)); | |
4a530180 | 1370 | return 1; |
22d53c88 | 1371 | } else { |
ca41f6b7 | 1372 | /* Try to advance the reactor. */ |
ccd31037 | 1373 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); |
ca41f6b7 | 1374 | |
4a530180 | 1375 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
ca41f6b7 | 1376 | /* The handshake is now done. */ |
4a530180 | 1377 | return 1; |
ca41f6b7 | 1378 | |
22d53c88 | 1379 | /* Otherwise, indicate that the handshake isn't done yet. */ |
faa3a180 | 1380 | QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); |
4a530180 | 1381 | return -1; /* Non-protocol error */ |
22d53c88 | 1382 | } |
4a530180 | 1383 | } |
a8489257 | 1384 | |
4a530180 | 1385 | QUIC_TAKES_LOCK |
072328dd | 1386 | int ossl_quic_do_handshake(SSL *s) |
4a530180 HL |
1387 | { |
1388 | int ret; | |
072328dd | 1389 | QCTX ctx; |
4a530180 | 1390 | |
072328dd HL |
1391 | if (!expect_quic(s, &ctx)) |
1392 | return 0; | |
1393 | ||
1394 | quic_lock(ctx.qc); | |
4a530180 | 1395 | |
faa3a180 | 1396 | ret = quic_do_handshake(&ctx); |
072328dd | 1397 | quic_unlock(ctx.qc); |
a8489257 | 1398 | return ret; |
99e1cc7b TM |
1399 | } |
1400 | ||
22d53c88 HL |
1401 | /* SSL_connect */ |
1402 | int ossl_quic_connect(SSL *s) | |
99e1cc7b | 1403 | { |
22d53c88 | 1404 | /* Ensure we are in connect state (no-op if non-idle). */ |
072328dd | 1405 | ossl_quic_set_connect_state(s); |
22d53c88 HL |
1406 | |
1407 | /* Begin or continue the handshake */ | |
072328dd | 1408 | return ossl_quic_do_handshake(s); |
99e1cc7b TM |
1409 | } |
1410 | ||
22d53c88 HL |
1411 | /* SSL_accept */ |
1412 | int ossl_quic_accept(SSL *s) | |
99e1cc7b | 1413 | { |
22d53c88 | 1414 | /* Ensure we are in accept state (no-op if non-idle). */ |
072328dd | 1415 | ossl_quic_set_accept_state(s); |
22d53c88 HL |
1416 | |
1417 | /* Begin or continue the handshake */ | |
072328dd | 1418 | return ossl_quic_do_handshake(s); |
99e1cc7b | 1419 | } |
e44795bd | 1420 | |
cb5c208b HL |
1421 | /* |
1422 | * QUIC Front-End I/O API: Stream Lifecycle Operations | |
1423 | * =================================================== | |
1424 | * | |
1425 | * SSL_stream_new => ossl_quic_conn_stream_new | |
1426 | * | |
1427 | */ | |
21c80696 HL |
1428 | |
1429 | /* | |
1430 | * Try to create the default XSO if it doesn't already exist. Returns 1 if the | |
1431 | * default XSO was created. Returns 0 if it was not (e.g. because it already | |
1432 | * exists). Note that this is NOT an error condition. | |
1433 | */ | |
1434 | QUIC_NEEDS_LOCK | |
faa3a180 | 1435 | static int qc_try_create_default_xso_for_write(QCTX *ctx) |
21c80696 | 1436 | { |
8b7be3aa | 1437 | uint64_t flags = 0; |
faa3a180 | 1438 | QUIC_CONNECTION *qc = ctx->qc; |
21c80696 | 1439 | |
8b7be3aa HL |
1440 | if (qc->default_xso_created |
1441 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
21c80696 HL |
1442 | /* |
1443 | * We only do this once. If the user detaches a previously created | |
1444 | * default XSO we don't auto-create another one. | |
1445 | */ | |
faa3a180 | 1446 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
21c80696 | 1447 | |
8b7be3aa HL |
1448 | /* Create a locally-initiated stream. */ |
1449 | if (qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_AUTO_UNI) | |
1450 | flags |= SSL_STREAM_FLAG_UNI; | |
1451 | ||
faa3a180 | 1452 | qc_set_default_xso(qc, (QUIC_XSO *)quic_conn_stream_new(ctx, flags, |
13ac037d | 1453 | /*needs_lock=*/0), |
995ff282 | 1454 | /*touch=*/0); |
8b7be3aa | 1455 | if (qc->default_xso == NULL) |
faa3a180 | 1456 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1457 | |
995ff282 | 1458 | qc_touch_default_xso(qc); |
8b7be3aa HL |
1459 | return 1; |
1460 | } | |
1461 | ||
1462 | struct quic_wait_for_stream_args { | |
1463 | QUIC_CONNECTION *qc; | |
1464 | QUIC_STREAM *qs; | |
faa3a180 | 1465 | QCTX *ctx; |
8b7be3aa HL |
1466 | uint64_t expect_id; |
1467 | }; | |
1468 | ||
1469 | QUIC_NEEDS_LOCK | |
1470 | static int quic_wait_for_stream(void *arg) | |
1471 | { | |
1472 | struct quic_wait_for_stream_args *args = arg; | |
1473 | ||
1474 | if (!ossl_quic_channel_is_active(args->qc->ch)) { | |
1475 | /* If connection is torn down due to an error while blocking, stop. */ | |
faa3a180 | 1476 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
8b7be3aa HL |
1477 | return -1; |
1478 | } | |
1479 | ||
1480 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
acc6fde0 HL |
1481 | args->expect_id | QUIC_STREAM_DIR_BIDI); |
1482 | if (args->qs == NULL) | |
1483 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
1484 | args->expect_id | QUIC_STREAM_DIR_UNI); | |
1485 | ||
8b7be3aa HL |
1486 | if (args->qs != NULL) |
1487 | return 1; /* stream now exists */ | |
1488 | ||
1489 | return 0; /* did not get a stream, keep trying */ | |
1490 | } | |
1491 | ||
1492 | QUIC_NEEDS_LOCK | |
faa3a180 | 1493 | static int qc_wait_for_default_xso_for_read(QCTX *ctx) |
8b7be3aa HL |
1494 | { |
1495 | /* Called on a QCSO and we don't currently have a default stream. */ | |
1496 | uint64_t expect_id; | |
faa3a180 | 1497 | QUIC_CONNECTION *qc = ctx->qc; |
8b7be3aa HL |
1498 | QUIC_STREAM *qs; |
1499 | int res; | |
1500 | struct quic_wait_for_stream_args wargs; | |
1501 | ||
1502 | /* | |
1503 | * If default stream functionality is disabled or we already detached | |
1504 | * one, don't make another default stream and just fail. | |
1505 | */ | |
1506 | if (qc->default_xso_created | |
1507 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
faa3a180 | 1508 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
8b7be3aa HL |
1509 | |
1510 | /* | |
1511 | * The peer may have opened a stream since we last ticked. So tick and | |
1512 | * see if the stream with ordinal 0 (remote, bidi/uni based on stream | |
1513 | * mode) exists yet. QUIC stream IDs must be allocated in order, so the | |
1514 | * first stream created by a peer must have an ordinal of 0. | |
1515 | */ | |
1516 | expect_id = qc->as_server | |
1517 | ? QUIC_STREAM_INITIATOR_CLIENT | |
1518 | : QUIC_STREAM_INITIATOR_SERVER; | |
1519 | ||
8b7be3aa | 1520 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), |
acc6fde0 HL |
1521 | expect_id | QUIC_STREAM_DIR_BIDI); |
1522 | if (qs == NULL) | |
1523 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1524 | expect_id | QUIC_STREAM_DIR_UNI); | |
1525 | ||
8b7be3aa HL |
1526 | if (qs == NULL) { |
1527 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1528 | ||
1529 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1530 | expect_id); | |
1531 | } | |
1532 | ||
1533 | if (qs == NULL) { | |
1534 | if (!qc_blocking_mode(qc)) | |
1535 | /* Non-blocking mode, so just bail immediately. */ | |
faa3a180 | 1536 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); |
8b7be3aa HL |
1537 | |
1538 | /* Block until we have a stream. */ | |
1539 | wargs.qc = qc; | |
1540 | wargs.qs = NULL; | |
faa3a180 | 1541 | wargs.ctx = ctx; |
8b7be3aa HL |
1542 | wargs.expect_id = expect_id; |
1543 | ||
1544 | res = block_until_pred(qc, quic_wait_for_stream, &wargs, 0); | |
1545 | if (res == 0) | |
faa3a180 | 1546 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa HL |
1547 | else if (res < 0 || wargs.qs == NULL) |
1548 | /* quic_wait_for_stream raised error here */ | |
21c80696 | 1549 | return 0; |
8b7be3aa HL |
1550 | |
1551 | qs = wargs.qs; | |
21c80696 HL |
1552 | } |
1553 | ||
8b7be3aa HL |
1554 | /* |
1555 | * We now have qs != NULL. Make it the default stream, creating the | |
1556 | * necessary XSO. | |
1557 | */ | |
995ff282 | 1558 | qc_set_default_xso(qc, create_xso_from_stream(qc, qs), /*touch=*/0); |
8b7be3aa | 1559 | if (qc->default_xso == NULL) |
faa3a180 | 1560 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1561 | |
995ff282 | 1562 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
21c80696 HL |
1563 | return 1; |
1564 | } | |
1565 | ||
1566 | QUIC_NEEDS_LOCK | |
1567 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs) | |
1568 | { | |
1569 | QUIC_XSO *xso = NULL; | |
1570 | ||
1571 | if ((xso = OPENSSL_zalloc(sizeof(*xso))) == NULL) | |
1572 | goto err; | |
1573 | ||
1574 | if (!ossl_ssl_init(&xso->ssl, qc->ssl.ctx, qc->ssl.method, SSL_TYPE_QUIC_XSO)) | |
1575 | goto err; | |
1576 | ||
9cab4bd5 HL |
1577 | /* XSO refs QC */ |
1578 | if (!SSL_up_ref(&qc->ssl)) | |
1579 | goto err; | |
1580 | ||
21c80696 HL |
1581 | xso->conn = qc; |
1582 | xso->blocking = qc->default_blocking; | |
1583 | xso->ssl_mode = qc->default_ssl_mode; | |
db2f98c4 HL |
1584 | xso->ssl_options |
1585 | = qc->default_ssl_options & OSSL_QUIC_PERMITTED_OPTIONS_STREAM; | |
faa3a180 | 1586 | xso->last_error = SSL_ERROR_NONE; |
21c80696 HL |
1587 | |
1588 | xso->stream = qs; | |
1589 | ||
1590 | ++qc->num_xso; | |
db2f98c4 | 1591 | xso_update_options(xso); |
21c80696 HL |
1592 | return xso; |
1593 | ||
1594 | err: | |
1595 | OPENSSL_free(xso); | |
1596 | return NULL; | |
1597 | } | |
1598 | ||
13ac037d | 1599 | /* locking depends on need_lock */ |
faa3a180 | 1600 | static SSL *quic_conn_stream_new(QCTX *ctx, uint64_t flags, int need_lock) |
cb5c208b | 1601 | { |
faa3a180 | 1602 | QUIC_CONNECTION *qc = ctx->qc; |
cb5c208b | 1603 | QUIC_XSO *xso = NULL; |
21c80696 | 1604 | QUIC_STREAM *qs = NULL; |
2dbc39de | 1605 | int is_uni = ((flags & SSL_STREAM_FLAG_UNI) != 0); |
cb5c208b | 1606 | |
13ac037d HL |
1607 | if (need_lock) |
1608 | quic_lock(qc); | |
2dbc39de | 1609 | |
13ac037d | 1610 | if (ossl_quic_channel_is_term_any(qc->ch)) { |
faa3a180 | 1611 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2dbc39de HL |
1612 | goto err; |
1613 | } | |
1614 | ||
13ac037d | 1615 | qs = ossl_quic_channel_new_stream_local(qc->ch, is_uni); |
21c80696 | 1616 | if (qs == NULL) |
2dbc39de | 1617 | goto err; |
cb5c208b | 1618 | |
13ac037d | 1619 | xso = create_xso_from_stream(qc, qs); |
21c80696 | 1620 | if (xso == NULL) |
cb5c208b HL |
1621 | goto err; |
1622 | ||
13ac037d HL |
1623 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
1624 | if (need_lock) | |
1625 | quic_unlock(qc); | |
1626 | ||
cb5c208b HL |
1627 | return &xso->ssl; |
1628 | ||
1629 | err: | |
1630 | OPENSSL_free(xso); | |
13ac037d HL |
1631 | ossl_quic_stream_map_release(ossl_quic_channel_get_qsm(qc->ch), qs); |
1632 | if (need_lock) | |
1633 | quic_unlock(qc); | |
1634 | ||
cb5c208b | 1635 | return NULL; |
13ac037d HL |
1636 | |
1637 | } | |
1638 | ||
1639 | QUIC_TAKES_LOCK | |
1640 | SSL *ossl_quic_conn_stream_new(SSL *s, uint64_t flags) | |
1641 | { | |
1642 | QCTX ctx; | |
1643 | ||
1644 | if (!expect_quic_conn_only(s, &ctx)) | |
1645 | return NULL; | |
1646 | ||
faa3a180 | 1647 | return quic_conn_stream_new(&ctx, flags, /*need_lock=*/1); |
cb5c208b HL |
1648 | } |
1649 | ||
22d53c88 HL |
1650 | /* |
1651 | * QUIC Front-End I/O API: Steady-State Operations | |
1652 | * =============================================== | |
1653 | * | |
1654 | * Here we dispatch calls to the steady-state front-end I/O API functions; that | |
1655 | * is, the functions used during the established phase of a QUIC connection | |
1656 | * (e.g. SSL_read, SSL_write). | |
1657 | * | |
1658 | * Each function must handle both blocking and non-blocking modes. As discussed | |
1659 | * above, all QUIC I/O is implemented using non-blocking mode internally. | |
1660 | * | |
1661 | * SSL_get_error => partially implemented by ossl_quic_get_error | |
1662 | * (BIO/)SSL_read => ossl_quic_read | |
1663 | * (BIO/)SSL_write => ossl_quic_write | |
1664 | * SSL_pending => ossl_quic_pending | |
a9979965 | 1665 | * SSL_stream_conclude => ossl_quic_conn_stream_conclude |
2525109f | 1666 | * SSL_key_update => ossl_quic_key_update |
22d53c88 HL |
1667 | */ |
1668 | ||
1669 | /* SSL_get_error */ | |
072328dd | 1670 | int ossl_quic_get_error(const SSL *s, int i) |
e44795bd | 1671 | { |
072328dd | 1672 | QCTX ctx; |
5c3474ea | 1673 | int net_error, last_error; |
072328dd HL |
1674 | |
1675 | if (!expect_quic(s, &ctx)) | |
1676 | return 0; | |
1677 | ||
5c3474ea TM |
1678 | quic_lock(ctx.qc); |
1679 | net_error = ossl_quic_channel_net_error(ctx.qc->ch); | |
1680 | last_error = ctx.is_stream ? ctx.xso->last_error : ctx.qc->last_error; | |
1681 | quic_unlock(ctx.qc); | |
1682 | ||
1683 | if (net_error) | |
1684 | return SSL_ERROR_SYSCALL; | |
1685 | ||
1686 | return last_error; | |
e44795bd TM |
1687 | } |
1688 | ||
22d53c88 HL |
1689 | /* |
1690 | * SSL_write | |
1691 | * --------- | |
1692 | * | |
1693 | * The set of functions below provide the implementation of the public SSL_write | |
1694 | * function. We must handle: | |
1695 | * | |
1696 | * - both blocking and non-blocking operation at the application level, | |
1697 | * depending on how we are configured; | |
1698 | * | |
1699 | * - SSL_MODE_ENABLE_PARTIAL_WRITE being on or off; | |
1700 | * | |
1701 | * - SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER. | |
1702 | * | |
1703 | */ | |
4847599b | 1704 | QUIC_NEEDS_LOCK |
cb5c208b | 1705 | static void quic_post_write(QUIC_XSO *xso, int did_append, int do_tick) |
22d53c88 HL |
1706 | { |
1707 | /* | |
1708 | * We have appended at least one byte to the stream. | |
1709 | * Potentially mark stream as active, depending on FC. | |
1710 | */ | |
1711 | if (did_append) | |
cb5c208b HL |
1712 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(xso->conn->ch), |
1713 | xso->stream); | |
22d53c88 HL |
1714 | |
1715 | /* | |
1716 | * Try and send. | |
1717 | * | |
1718 | * TODO(QUIC): It is probably inefficient to try and do this immediately, | |
1719 | * plus we should eventually consider Nagle's algorithm. | |
1720 | */ | |
1721 | if (do_tick) | |
cb5c208b | 1722 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(xso->conn->ch), 0); |
22d53c88 HL |
1723 | } |
1724 | ||
1725 | struct quic_write_again_args { | |
cb5c208b | 1726 | QUIC_XSO *xso; |
22d53c88 HL |
1727 | const unsigned char *buf; |
1728 | size_t len; | |
1729 | size_t total_written; | |
abfe3d51 | 1730 | int err; |
22d53c88 HL |
1731 | }; |
1732 | ||
4847599b | 1733 | QUIC_NEEDS_LOCK |
22d53c88 HL |
1734 | static int quic_write_again(void *arg) |
1735 | { | |
1736 | struct quic_write_again_args *args = arg; | |
1737 | size_t actual_written = 0; | |
1738 | ||
cb5c208b | 1739 | if (!ossl_quic_channel_is_active(args->xso->conn->ch)) |
22d53c88 HL |
1740 | /* If connection is torn down due to an error while blocking, stop. */ |
1741 | return -2; | |
1742 | ||
abfe3d51 HL |
1743 | if (!quic_validate_for_write(args->xso, &args->err)) |
1744 | /* | |
1745 | * Stream may have become invalid for write due to connection events | |
1746 | * while we blocked. | |
1747 | */ | |
1748 | return -2; | |
1749 | ||
1750 | args->err = ERR_R_INTERNAL_ERROR; | |
cb5c208b | 1751 | if (!ossl_quic_sstream_append(args->xso->stream->sstream, |
22d53c88 HL |
1752 | args->buf, args->len, &actual_written)) |
1753 | return -2; | |
1754 | ||
cb5c208b | 1755 | quic_post_write(args->xso, actual_written > 0, 0); |
22d53c88 HL |
1756 | |
1757 | args->buf += actual_written; | |
1758 | args->len -= actual_written; | |
1759 | args->total_written += actual_written; | |
1760 | ||
3f0c310b | 1761 | if (args->len == 0) |
22d53c88 HL |
1762 | /* Written everything, done. */ |
1763 | return 1; | |
1764 | ||
1765 | /* Not written everything yet, keep trying. */ | |
1766 | return 0; | |
1767 | } | |
1768 | ||
4847599b | 1769 | QUIC_NEEDS_LOCK |
faa3a180 | 1770 | static int quic_write_blocking(QCTX *ctx, const void *buf, size_t len, |
22d53c88 | 1771 | size_t *written) |
e44795bd | 1772 | { |
22d53c88 | 1773 | int res; |
faa3a180 | 1774 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
1775 | struct quic_write_again_args args; |
1776 | size_t actual_written = 0; | |
1777 | ||
1778 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 1779 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, |
22d53c88 HL |
1780 | &actual_written)) { |
1781 | /* Stream already finished or allocation error. */ | |
1782 | *written = 0; | |
faa3a180 | 1783 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
1784 | } |
1785 | ||
cb5c208b | 1786 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
1787 | |
1788 | if (actual_written == len) { | |
1789 | /* Managed to append everything on the first try. */ | |
1790 | *written = actual_written; | |
1791 | return 1; | |
1792 | } | |
1793 | ||
1794 | /* | |
1795 | * We did not manage to append all of the data immediately, so the stream | |
1796 | * buffer has probably filled up. This means we need to block until some of | |
1797 | * it is freed up. | |
1798 | */ | |
cb5c208b | 1799 | args.xso = xso; |
22d53c88 HL |
1800 | args.buf = (const unsigned char *)buf + actual_written; |
1801 | args.len = len - actual_written; | |
1802 | args.total_written = 0; | |
abfe3d51 | 1803 | args.err = ERR_R_INTERNAL_ERROR; |
22d53c88 | 1804 | |
cb5c208b | 1805 | res = block_until_pred(xso->conn, quic_write_again, &args, 0); |
22d53c88 | 1806 | if (res <= 0) { |
cb5c208b | 1807 | if (!ossl_quic_channel_is_active(xso->conn->ch)) |
faa3a180 | 1808 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 1809 | else |
abfe3d51 | 1810 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, args.err, NULL); |
22d53c88 HL |
1811 | } |
1812 | ||
1813 | *written = args.total_written; | |
e44795bd TM |
1814 | return 1; |
1815 | } | |
1816 | ||
ca41f6b7 HL |
1817 | /* |
1818 | * Functions to manage All-or-Nothing (AON) (that is, non-ENABLE_PARTIAL_WRITE) | |
1819 | * write semantics. | |
1820 | */ | |
cb5c208b | 1821 | static void aon_write_begin(QUIC_XSO *xso, const unsigned char *buf, |
22d53c88 HL |
1822 | size_t buf_len, size_t already_sent) |
1823 | { | |
cb5c208b | 1824 | assert(!xso->aon_write_in_progress); |
22d53c88 | 1825 | |
cb5c208b HL |
1826 | xso->aon_write_in_progress = 1; |
1827 | xso->aon_buf_base = buf; | |
1828 | xso->aon_buf_pos = already_sent; | |
1829 | xso->aon_buf_len = buf_len; | |
22d53c88 HL |
1830 | } |
1831 | ||
cb5c208b | 1832 | static void aon_write_finish(QUIC_XSO *xso) |
22d53c88 | 1833 | { |
cb5c208b HL |
1834 | xso->aon_write_in_progress = 0; |
1835 | xso->aon_buf_base = NULL; | |
1836 | xso->aon_buf_pos = 0; | |
1837 | xso->aon_buf_len = 0; | |
22d53c88 HL |
1838 | } |
1839 | ||
4847599b | 1840 | QUIC_NEEDS_LOCK |
faa3a180 | 1841 | static int quic_write_nonblocking_aon(QCTX *ctx, const void *buf, |
22d53c88 | 1842 | size_t len, size_t *written) |
e44795bd | 1843 | { |
faa3a180 | 1844 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
1845 | const void *actual_buf; |
1846 | size_t actual_len, actual_written = 0; | |
1847 | int accept_moving_buffer | |
cb5c208b | 1848 | = ((xso->ssl_mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER) != 0); |
22d53c88 | 1849 | |
cb5c208b | 1850 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
1851 | /* |
1852 | * We are in the middle of an AON write (i.e., a previous write did not | |
75b2920a HL |
1853 | * manage to append all data to the SSTREAM and we have Enable Partial |
1854 | * Write (EPW) mode disabled.) | |
22d53c88 | 1855 | */ |
cb5c208b HL |
1856 | if ((!accept_moving_buffer && xso->aon_buf_base != buf) |
1857 | || len != xso->aon_buf_len) | |
22d53c88 HL |
1858 | /* |
1859 | * Pointer must not have changed if we are not in accept moving | |
1860 | * buffer mode. Length must never change. | |
1861 | */ | |
faa3a180 | 1862 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BAD_WRITE_RETRY, NULL); |
22d53c88 | 1863 | |
cb5c208b HL |
1864 | actual_buf = (unsigned char *)buf + xso->aon_buf_pos; |
1865 | actual_len = len - xso->aon_buf_pos; | |
22d53c88 HL |
1866 | assert(actual_len > 0); |
1867 | } else { | |
1868 | actual_buf = buf; | |
1869 | actual_len = len; | |
1870 | } | |
1871 | ||
1872 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 1873 | if (!ossl_quic_sstream_append(xso->stream->sstream, actual_buf, actual_len, |
22d53c88 HL |
1874 | &actual_written)) { |
1875 | /* Stream already finished or allocation error. */ | |
1876 | *written = 0; | |
faa3a180 | 1877 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
1878 | } |
1879 | ||
cb5c208b | 1880 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
1881 | |
1882 | if (actual_written == actual_len) { | |
1883 | /* We have sent everything. */ | |
cb5c208b | 1884 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
1885 | /* |
1886 | * We have sent everything, and we were in the middle of an AON | |
1887 | * write. The output write length is the total length of the AON | |
1888 | * buffer, not however many bytes we managed to write to the stream | |
1889 | * in this call. | |
1890 | */ | |
cb5c208b HL |
1891 | *written = xso->aon_buf_len; |
1892 | aon_write_finish(xso); | |
22d53c88 HL |
1893 | } else { |
1894 | *written = actual_written; | |
1895 | } | |
1896 | ||
1897 | return 1; | |
1898 | } | |
1899 | ||
cb5c208b | 1900 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
1901 | /* |
1902 | * AON write is in progress but we have not written everything yet. We | |
1903 | * may have managed to send zero bytes, or some number of bytes less | |
1904 | * than the total remaining which need to be appended during this | |
1905 | * AON operation. | |
1906 | */ | |
cb5c208b HL |
1907 | xso->aon_buf_pos += actual_written; |
1908 | assert(xso->aon_buf_pos < xso->aon_buf_len); | |
faa3a180 | 1909 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
22d53c88 HL |
1910 | } |
1911 | ||
08e49012 | 1912 | /* |
22d53c88 HL |
1913 | * Not in an existing AON operation but partial write is not enabled, so we |
1914 | * need to begin a new AON operation. However we needn't bother if we didn't | |
1915 | * actually append anything. | |
08e49012 | 1916 | */ |
22d53c88 | 1917 | if (actual_written > 0) |
cb5c208b | 1918 | aon_write_begin(xso, buf, len, actual_written); |
e44795bd | 1919 | |
22d53c88 HL |
1920 | /* |
1921 | * AON - We do not publicly admit to having appended anything until AON | |
1922 | * completes. | |
1923 | */ | |
1924 | *written = 0; | |
faa3a180 | 1925 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
e44795bd TM |
1926 | } |
1927 | ||
4847599b | 1928 | QUIC_NEEDS_LOCK |
faa3a180 | 1929 | static int quic_write_nonblocking_epw(QCTX *ctx, const void *buf, size_t len, |
22d53c88 | 1930 | size_t *written) |
e44795bd | 1931 | { |
faa3a180 HL |
1932 | QUIC_XSO *xso = ctx->xso; |
1933 | ||
22d53c88 | 1934 | /* Simple best effort operation. */ |
cb5c208b | 1935 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, written)) { |
22d53c88 HL |
1936 | /* Stream already finished or allocation error. */ |
1937 | *written = 0; | |
faa3a180 | 1938 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
1939 | } |
1940 | ||
cb5c208b | 1941 | quic_post_write(xso, *written > 0, 1); |
e44795bd TM |
1942 | return 1; |
1943 | } | |
d5ab48a1 | 1944 | |
abfe3d51 HL |
1945 | QUIC_NEEDS_LOCK |
1946 | static int quic_validate_for_write(QUIC_XSO *xso, int *err) | |
1947 | { | |
1948 | QUIC_STREAM_MAP *qsm; | |
1949 | ||
1950 | if (xso == NULL || xso->stream == NULL) { | |
1951 | *err = ERR_R_INTERNAL_ERROR; | |
1952 | return 0; | |
1953 | } | |
1954 | ||
1955 | switch (xso->stream->send_state) { | |
1956 | default: | |
1957 | case QUIC_SSTREAM_STATE_NONE: | |
1958 | *err = SSL_R_STREAM_RECV_ONLY; | |
1959 | return 0; | |
1960 | ||
1961 | case QUIC_SSTREAM_STATE_READY: | |
1962 | qsm = ossl_quic_channel_get_qsm(xso->conn->ch); | |
1963 | ||
1964 | if (!ossl_quic_stream_map_ensure_send_part_id(qsm, xso->stream)) { | |
1965 | *err = ERR_R_INTERNAL_ERROR; | |
1966 | return 0; | |
1967 | } | |
1968 | ||
1969 | /* FALLTHROUGH */ | |
1970 | case QUIC_SSTREAM_STATE_SEND: | |
1971 | case QUIC_SSTREAM_STATE_DATA_SENT: | |
1972 | case QUIC_SSTREAM_STATE_DATA_RECVD: | |
1973 | if (ossl_quic_sstream_get_final_size(xso->stream->sstream, NULL)) { | |
1974 | *err = SSL_R_STREAM_FINISHED; | |
1975 | return 0; | |
1976 | } | |
1977 | ||
1978 | return 1; | |
1979 | ||
1980 | case QUIC_SSTREAM_STATE_RESET_SENT: | |
1981 | case QUIC_SSTREAM_STATE_RESET_RECVD: | |
1982 | *err = SSL_R_STREAM_RESET; | |
1983 | return 0; | |
1984 | } | |
1985 | } | |
1986 | ||
a8489257 | 1987 | QUIC_TAKES_LOCK |
22d53c88 | 1988 | int ossl_quic_write(SSL *s, const void *buf, size_t len, size_t *written) |
d5ab48a1 | 1989 | { |
a8489257 | 1990 | int ret; |
072328dd | 1991 | QCTX ctx; |
abfe3d51 | 1992 | int partial_write, err; |
22d53c88 HL |
1993 | |
1994 | *written = 0; | |
1995 | ||
8b7be3aa HL |
1996 | if (len == 0) |
1997 | return 1; | |
22d53c88 | 1998 | |
8b7be3aa HL |
1999 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, &ctx)) |
2000 | return 0; | |
a8489257 | 2001 | |
cb5c208b | 2002 | partial_write = ((ctx.xso->ssl_mode & SSL_MODE_ENABLE_PARTIAL_WRITE) != 0); |
072328dd | 2003 | |
23c04709 | 2004 | if (ossl_quic_channel_is_term_any(ctx.qc->ch)) { |
faa3a180 | 2005 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2006 | goto out; |
2007 | } | |
22d53c88 | 2008 | |
ca41f6b7 HL |
2009 | /* |
2010 | * If we haven't finished the handshake, try to advance it. | |
2011 | * We don't accept writes until the handshake is completed. | |
2012 | */ | |
faa3a180 | 2013 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2014 | ret = 0; |
2015 | goto out; | |
2016 | } | |
ca41f6b7 | 2017 | |
abfe3d51 HL |
2018 | /* Ensure correct stream state, stream send part not concluded, etc. */ |
2019 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2020 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2021 | goto out; |
2022 | } | |
22d53c88 | 2023 | |
cb5c208b | 2024 | if (xso_blocking_mode(ctx.xso)) |
faa3a180 | 2025 | ret = quic_write_blocking(&ctx, buf, len, written); |
22d53c88 | 2026 | else if (partial_write) |
faa3a180 | 2027 | ret = quic_write_nonblocking_epw(&ctx, buf, len, written); |
22d53c88 | 2028 | else |
faa3a180 | 2029 | ret = quic_write_nonblocking_aon(&ctx, buf, len, written); |
a8489257 HL |
2030 | |
2031 | out: | |
072328dd | 2032 | quic_unlock(ctx.qc); |
a8489257 | 2033 | return ret; |
d5ab48a1 RL |
2034 | } |
2035 | ||
2036 | /* | |
22d53c88 HL |
2037 | * SSL_read |
2038 | * -------- | |
d5ab48a1 | 2039 | */ |
22d53c88 | 2040 | struct quic_read_again_args { |
faa3a180 | 2041 | QCTX *ctx; |
22d53c88 HL |
2042 | QUIC_STREAM *stream; |
2043 | void *buf; | |
2044 | size_t len; | |
2045 | size_t *bytes_read; | |
2046 | int peek; | |
2047 | }; | |
2048 | ||
e0bd2825 HL |
2049 | QUIC_NEEDS_LOCK |
2050 | static int quic_validate_for_read(QUIC_XSO *xso, int *err, int *eos) | |
2051 | { | |
2052 | *eos = 0; | |
2053 | ||
2054 | if (xso == NULL || xso->stream == NULL) { | |
2055 | *err = ERR_R_INTERNAL_ERROR; | |
2056 | return 0; | |
2057 | } | |
2058 | ||
2059 | switch (xso->stream->recv_state) { | |
2060 | default: | |
2061 | case QUIC_RSTREAM_STATE_NONE: | |
2062 | *err = SSL_R_STREAM_SEND_ONLY; | |
2063 | return 0; | |
2064 | ||
2065 | case QUIC_RSTREAM_STATE_RECV: | |
2066 | case QUIC_RSTREAM_STATE_SIZE_KNOWN: | |
2067 | case QUIC_RSTREAM_STATE_DATA_RECVD: | |
2068 | return 1; | |
2069 | ||
2070 | case QUIC_RSTREAM_STATE_DATA_READ: | |
2071 | *eos = 1; | |
2072 | return 0; | |
2073 | ||
2074 | case QUIC_RSTREAM_STATE_RESET_RECVD: | |
2075 | case QUIC_RSTREAM_STATE_RESET_READ: | |
2076 | *err = SSL_R_STREAM_RESET; | |
2077 | return 0; | |
2078 | } | |
2079 | } | |
2080 | ||
4847599b | 2081 | QUIC_NEEDS_LOCK |
faa3a180 | 2082 | static int quic_read_actual(QCTX *ctx, |
22d53c88 HL |
2083 | QUIC_STREAM *stream, |
2084 | void *buf, size_t buf_len, | |
2085 | size_t *bytes_read, | |
2086 | int peek) | |
d5ab48a1 | 2087 | { |
e0bd2825 | 2088 | int is_fin = 0, err, eos; |
faa3a180 | 2089 | QUIC_CONNECTION *qc = ctx->qc; |
22d53c88 | 2090 | |
e0bd2825 HL |
2091 | if (!quic_validate_for_read(ctx->xso, &err, &eos)) { |
2092 | if (eos) | |
2093 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); | |
2094 | else | |
2095 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, err, NULL); | |
2096 | } | |
2097 | ||
a9979965 HL |
2098 | /* If the receive part of the stream is over, issue EOF. */ |
2099 | if (stream->recv_fin_retired) | |
e0bd2825 | 2100 | /* XXX TODO REMOVE */ |
faa3a180 | 2101 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); |
a9979965 | 2102 | |
22d53c88 HL |
2103 | if (peek) { |
2104 | if (!ossl_quic_rstream_peek(stream->rstream, buf, buf_len, | |
2105 | bytes_read, &is_fin)) | |
faa3a180 | 2106 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2107 | |
2108 | } else { | |
2109 | if (!ossl_quic_rstream_read(stream->rstream, buf, buf_len, | |
2110 | bytes_read, &is_fin)) | |
faa3a180 | 2111 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2112 | } |
2113 | ||
2114 | if (!peek) { | |
2115 | if (*bytes_read > 0) { | |
2116 | /* | |
2117 | * We have read at least one byte from the stream. Inform stream-level | |
2118 | * RXFC of the retirement of controlled bytes. Update the active stream | |
2119 | * status (the RXFC may now want to emit a frame granting more credit to | |
2120 | * the peer). | |
2121 | */ | |
2122 | OSSL_RTT_INFO rtt_info; | |
d50e750e | 2123 | |
22d53c88 HL |
2124 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(qc->ch), &rtt_info); |
2125 | ||
cb5c208b | 2126 | if (!ossl_quic_rxfc_on_retire(&stream->rxfc, *bytes_read, |
22d53c88 | 2127 | rtt_info.smoothed_rtt)) |
faa3a180 | 2128 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2129 | } |
2130 | ||
2131 | if (is_fin) | |
2132 | stream->recv_fin_retired = 1; | |
2133 | ||
2134 | if (*bytes_read > 0) | |
2135 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(qc->ch), | |
cb5c208b | 2136 | stream); |
22d53c88 HL |
2137 | } |
2138 | ||
d5ab48a1 RL |
2139 | return 1; |
2140 | } | |
2141 | ||
4847599b | 2142 | QUIC_NEEDS_LOCK |
22d53c88 | 2143 | static int quic_read_again(void *arg) |
d5ab48a1 | 2144 | { |
22d53c88 HL |
2145 | struct quic_read_again_args *args = arg; |
2146 | ||
faa3a180 | 2147 | if (!ossl_quic_channel_is_active(args->ctx->qc->ch)) { |
22d53c88 | 2148 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 2149 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
ca41f6b7 | 2150 | return -1; |
a9979965 | 2151 | } |
22d53c88 | 2152 | |
faa3a180 | 2153 | if (!quic_read_actual(args->ctx, args->stream, |
22d53c88 HL |
2154 | args->buf, args->len, args->bytes_read, |
2155 | args->peek)) | |
2156 | return -1; | |
2157 | ||
2158 | if (*args->bytes_read > 0) | |
2159 | /* got at least one byte, the SSL_read op can finish now */ | |
2160 | return 1; | |
2161 | ||
81b6b43c | 2162 | return 0; /* did not read anything, keep trying */ |
d5ab48a1 RL |
2163 | } |
2164 | ||
a8489257 | 2165 | QUIC_TAKES_LOCK |
22d53c88 | 2166 | static int quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read, int peek) |
d5ab48a1 | 2167 | { |
a8489257 | 2168 | int ret, res; |
072328dd | 2169 | QCTX ctx; |
22d53c88 HL |
2170 | struct quic_read_again_args args; |
2171 | ||
2172 | *bytes_read = 0; | |
2173 | ||
8b7be3aa | 2174 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
2175 | return 0; |
2176 | ||
072328dd | 2177 | quic_lock(ctx.qc); |
a8489257 | 2178 | |
23c04709 | 2179 | if (ossl_quic_channel_is_term_any(ctx.qc->ch)) { |
faa3a180 | 2180 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2181 | goto out; |
2182 | } | |
22d53c88 | 2183 | |
a9979965 | 2184 | /* If we haven't finished the handshake, try to advance it. */ |
faa3a180 | 2185 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2186 | ret = 0; /* ossl_quic_do_handshake raised error here */ |
2187 | goto out; | |
2188 | } | |
22d53c88 | 2189 | |
8b7be3aa HL |
2190 | if (ctx.xso == NULL) { |
2191 | /* | |
2192 | * Called on a QCSO and we don't currently have a default stream. | |
2193 | * | |
2194 | * Wait until we get a stream initiated by the peer (blocking mode) or | |
2195 | * fail if we don't have one yet (non-blocking mode). | |
2196 | */ | |
faa3a180 | 2197 | if (!qc_wait_for_default_xso_for_read(&ctx)) { |
8b7be3aa HL |
2198 | ret = 0; /* error already raised here */ |
2199 | goto out; | |
2200 | } | |
2201 | ||
2202 | ctx.xso = ctx.qc->default_xso; | |
2203 | } | |
2204 | ||
faa3a180 | 2205 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { |
a8489257 HL |
2206 | ret = 0; /* quic_read_actual raised error here */ |
2207 | goto out; | |
2208 | } | |
22d53c88 HL |
2209 | |
2210 | if (*bytes_read > 0) { | |
2211 | /* | |
2212 | * Even though we succeeded, tick the reactor here to ensure we are | |
2213 | * handling other aspects of the QUIC connection. | |
2214 | */ | |
072328dd | 2215 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
a8489257 | 2216 | ret = 1; |
cb5c208b | 2217 | } else if (xso_blocking_mode(ctx.xso)) { |
22d53c88 HL |
2218 | /* |
2219 | * We were not able to read anything immediately, so our stream | |
2220 | * buffer is empty. This means we need to block until we get | |
2221 | * at least one byte. | |
2222 | */ | |
faa3a180 | 2223 | args.ctx = &ctx; |
cb5c208b | 2224 | args.stream = ctx.xso->stream; |
22d53c88 HL |
2225 | args.buf = buf; |
2226 | args.len = len; | |
2227 | args.bytes_read = bytes_read; | |
2228 | args.peek = peek; | |
2229 | ||
072328dd | 2230 | res = block_until_pred(ctx.qc, quic_read_again, &args, 0); |
a8489257 | 2231 | if (res == 0) { |
faa3a180 | 2232 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 HL |
2233 | goto out; |
2234 | } else if (res < 0) { | |
2235 | ret = 0; /* quic_read_again raised error here */ | |
2236 | goto out; | |
2237 | } | |
22d53c88 | 2238 | |
a8489257 | 2239 | ret = 1; |
af8b52cf | 2240 | } else { |
780b2527 HL |
2241 | /* |
2242 | * We did not get any bytes and are not in blocking mode. | |
2243 | * Tick to see if this delivers any more. | |
2244 | */ | |
2245 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); | |
2246 | ||
2247 | /* Try the read again. */ | |
2248 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { | |
2249 | ret = 0; /* quic_read_actual raised error here */ | |
2250 | goto out; | |
2251 | } | |
2252 | ||
2253 | if (*bytes_read > 0) | |
2254 | ret = 1; /* Succeeded this time. */ | |
2255 | else | |
2256 | ret = QUIC_RAISE_NORMAL_ERROR(&ctx, SSL_ERROR_WANT_READ); | |
af8b52cf | 2257 | } |
a8489257 HL |
2258 | |
2259 | out: | |
072328dd | 2260 | quic_unlock(ctx.qc); |
a8489257 | 2261 | return ret; |
d5ab48a1 RL |
2262 | } |
2263 | ||
22d53c88 HL |
2264 | int ossl_quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read) |
2265 | { | |
2266 | return quic_read(s, buf, len, bytes_read, 0); | |
2267 | } | |
2268 | ||
2269 | int ossl_quic_peek(SSL *s, void *buf, size_t len, size_t *bytes_read) | |
2270 | { | |
2271 | return quic_read(s, buf, len, bytes_read, 1); | |
2272 | } | |
2273 | ||
2274 | /* | |
2275 | * SSL_pending | |
2276 | * ----------- | |
2277 | */ | |
9280d26a | 2278 | |
a8489257 | 2279 | QUIC_TAKES_LOCK |
d6e7ebba | 2280 | static size_t ossl_quic_pending_int(const SSL *s, int check_channel) |
22d53c88 | 2281 | { |
072328dd | 2282 | QCTX ctx; |
433d107a | 2283 | size_t avail = 0; |
22d53c88 HL |
2284 | int fin = 0; |
2285 | ||
8b7be3aa | 2286 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, &ctx)) |
22d53c88 HL |
2287 | return 0; |
2288 | ||
2f018d14 HL |
2289 | if (ctx.xso->stream == NULL |
2290 | || !ossl_quic_stream_has_recv_buffer(ctx.xso->stream)) | |
22d53c88 | 2291 | /* Cannot raise errors here because we are const, just fail. */ |
a8489257 | 2292 | goto out; |
22d53c88 | 2293 | |
cb5c208b | 2294 | if (!ossl_quic_rstream_available(ctx.xso->stream->rstream, &avail, &fin)) |
a8489257 | 2295 | avail = 0; |
22d53c88 | 2296 | |
d6e7ebba HL |
2297 | if (avail == 0 && check_channel && ossl_quic_channel_has_pending(ctx.qc->ch)) |
2298 | avail = 1; | |
2299 | ||
a8489257 | 2300 | out: |
072328dd | 2301 | quic_unlock(ctx.qc); |
22d53c88 HL |
2302 | return avail; |
2303 | } | |
2304 | ||
560470b5 MC |
2305 | size_t ossl_quic_pending(const SSL *s) |
2306 | { | |
d6e7ebba | 2307 | return ossl_quic_pending_int(s, /*check_channel=*/0); |
560470b5 MC |
2308 | } |
2309 | ||
072328dd | 2310 | int ossl_quic_has_pending(const SSL *s) |
560470b5 | 2311 | { |
9280d26a | 2312 | /* Do we have app-side pending data or pending URXEs or RXEs? */ |
d6e7ebba | 2313 | return ossl_quic_pending_int(s, /*check_channel=*/1) > 0; |
560470b5 MC |
2314 | } |
2315 | ||
a9979965 HL |
2316 | /* |
2317 | * SSL_stream_conclude | |
2318 | * ------------------- | |
2319 | */ | |
a8489257 | 2320 | QUIC_TAKES_LOCK |
072328dd | 2321 | int ossl_quic_conn_stream_conclude(SSL *s) |
a9979965 | 2322 | { |
072328dd HL |
2323 | QCTX ctx; |
2324 | QUIC_STREAM *qs; | |
abfe3d51 | 2325 | int err; |
072328dd | 2326 | |
8b7be3aa | 2327 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, &ctx)) |
072328dd HL |
2328 | return 0; |
2329 | ||
cb5c208b | 2330 | qs = ctx.xso->stream; |
a9979965 | 2331 | |
abfe3d51 | 2332 | if (!ossl_quic_channel_is_active(ctx.qc->ch)) { |
072328dd | 2333 | quic_unlock(ctx.qc); |
abfe3d51 HL |
2334 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2335 | } | |
2336 | ||
2337 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2338 | quic_unlock(ctx.qc); | |
2339 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2340 | } |
2341 | ||
2f018d14 | 2342 | if (ossl_quic_sstream_get_final_size(qs->sstream, NULL)) { |
072328dd | 2343 | quic_unlock(ctx.qc); |
a9979965 | 2344 | return 1; |
a8489257 | 2345 | } |
a9979965 HL |
2346 | |
2347 | ossl_quic_sstream_fin(qs->sstream); | |
cb5c208b | 2348 | quic_post_write(ctx.xso, 1, 1); |
072328dd | 2349 | quic_unlock(ctx.qc); |
a9979965 HL |
2350 | return 1; |
2351 | } | |
2352 | ||
553a4e00 HL |
2353 | /* |
2354 | * SSL_inject_net_dgram | |
2355 | * -------------------- | |
2356 | */ | |
5129e594 | 2357 | QUIC_TAKES_LOCK |
553a4e00 HL |
2358 | int SSL_inject_net_dgram(SSL *s, const unsigned char *buf, |
2359 | size_t buf_len, | |
2360 | const BIO_ADDR *peer, | |
2361 | const BIO_ADDR *local) | |
2362 | { | |
5129e594 | 2363 | int ret; |
072328dd | 2364 | QCTX ctx; |
553a4e00 HL |
2365 | QUIC_DEMUX *demux; |
2366 | ||
072328dd | 2367 | if (!expect_quic(s, &ctx)) |
553a4e00 HL |
2368 | return 0; |
2369 | ||
072328dd | 2370 | quic_lock(ctx.qc); |
5129e594 | 2371 | |
072328dd | 2372 | demux = ossl_quic_channel_get0_demux(ctx.qc->ch); |
5129e594 HL |
2373 | ret = ossl_quic_demux_inject(demux, buf, buf_len, peer, local); |
2374 | ||
072328dd | 2375 | quic_unlock(ctx.qc); |
5129e594 | 2376 | return ret; |
553a4e00 HL |
2377 | } |
2378 | ||
020d0389 HL |
2379 | /* |
2380 | * SSL_get0_connection | |
2381 | * ------------------- | |
2382 | */ | |
2383 | SSL *ossl_quic_get0_connection(SSL *s) | |
2384 | { | |
2385 | QCTX ctx; | |
2386 | ||
2387 | if (!expect_quic(s, &ctx)) | |
2388 | return NULL; | |
2389 | ||
2390 | return &ctx.qc->ssl; | |
2391 | } | |
2392 | ||
1bca3f1b HL |
2393 | /* |
2394 | * SSL_get_stream_type | |
2395 | * ------------------- | |
2396 | */ | |
2397 | int ossl_quic_get_stream_type(SSL *s) | |
2398 | { | |
2399 | QCTX ctx; | |
2400 | ||
2401 | if (!expect_quic(s, &ctx)) | |
59c5c016 | 2402 | return SSL_STREAM_TYPE_BIDI; |
1bca3f1b HL |
2403 | |
2404 | if (ctx.xso == NULL) { | |
2405 | /* | |
59c5c016 HL |
2406 | * If deferred XSO creation has yet to occur, proceed according to the |
2407 | * default stream mode. If AUTO_BIDI or AUTO_UNI is set, we cannot know | |
2408 | * what kind of stream will be created yet, so return BIDI on the basis | |
2409 | * that at this time, the client still has the option of calling | |
2410 | * SSL_read() or SSL_write() first. | |
1bca3f1b | 2411 | */ |
59c5c016 HL |
2412 | if (ctx.qc->default_xso_created |
2413 | || ctx.qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
1bca3f1b | 2414 | return SSL_STREAM_TYPE_NONE; |
59c5c016 HL |
2415 | else |
2416 | return SSL_STREAM_TYPE_BIDI; | |
1bca3f1b HL |
2417 | } |
2418 | ||
2419 | if (ossl_quic_stream_is_bidi(ctx.xso->stream)) | |
2420 | return SSL_STREAM_TYPE_BIDI; | |
2421 | ||
2422 | if (ossl_quic_stream_is_server_init(ctx.xso->stream) != ctx.qc->as_server) | |
2423 | return SSL_STREAM_TYPE_READ; | |
2424 | else | |
2425 | return SSL_STREAM_TYPE_WRITE; | |
2426 | } | |
2427 | ||
19cb0887 HL |
2428 | /* |
2429 | * SSL_get_stream_id | |
2430 | * ----------------- | |
2431 | */ | |
cb68ce9f | 2432 | QUIC_TAKES_LOCK |
19cb0887 HL |
2433 | uint64_t ossl_quic_get_stream_id(SSL *s) |
2434 | { | |
2435 | QCTX ctx; | |
8b7be3aa | 2436 | uint64_t id; |
19cb0887 | 2437 | |
8b7be3aa | 2438 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, &ctx)) |
19cb0887 HL |
2439 | return UINT64_MAX; |
2440 | ||
8b7be3aa HL |
2441 | id = ctx.xso->stream->id; |
2442 | quic_unlock(ctx.qc); | |
2443 | ||
2444 | return id; | |
2445 | } | |
2446 | ||
2447 | /* | |
2448 | * SSL_set_default_stream_mode | |
2449 | * --------------------------- | |
2450 | */ | |
cb68ce9f | 2451 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2452 | int ossl_quic_set_default_stream_mode(SSL *s, uint32_t mode) |
2453 | { | |
2454 | QCTX ctx; | |
2455 | ||
2456 | if (!expect_quic_conn_only(s, &ctx)) | |
2457 | return 0; | |
2458 | ||
2459 | quic_lock(ctx.qc); | |
2460 | ||
2461 | if (ctx.qc->default_xso_created) | |
faa3a180 | 2462 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8b7be3aa HL |
2463 | "too late to change default stream mode"); |
2464 | ||
2465 | switch (mode) { | |
2466 | case SSL_DEFAULT_STREAM_MODE_NONE: | |
2467 | case SSL_DEFAULT_STREAM_MODE_AUTO_BIDI: | |
2468 | case SSL_DEFAULT_STREAM_MODE_AUTO_UNI: | |
2469 | ctx.qc->default_stream_mode = mode; | |
2470 | break; | |
2471 | default: | |
2472 | quic_unlock(ctx.qc); | |
faa3a180 | 2473 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8b7be3aa HL |
2474 | "bad default stream type"); |
2475 | } | |
2476 | ||
2477 | quic_unlock(ctx.qc); | |
2478 | return 1; | |
2479 | } | |
2480 | ||
2481 | /* | |
2482 | * SSL_detach_stream | |
2483 | * ----------------- | |
2484 | */ | |
cb68ce9f | 2485 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2486 | SSL *ossl_quic_detach_stream(SSL *s) |
2487 | { | |
2488 | QCTX ctx; | |
9cab4bd5 | 2489 | QUIC_XSO *xso = NULL; |
8b7be3aa HL |
2490 | |
2491 | if (!expect_quic_conn_only(s, &ctx)) | |
2492 | return NULL; | |
2493 | ||
2494 | quic_lock(ctx.qc); | |
2495 | ||
8b7be3aa | 2496 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 HL |
2497 | /* QC ref to any default XSO is transferred to us and to caller. */ |
2498 | qc_set_default_xso_keep_ref(ctx.qc, NULL, /*touch=*/1, &xso); | |
8b7be3aa HL |
2499 | |
2500 | quic_unlock(ctx.qc); | |
2501 | ||
9cab4bd5 | 2502 | return xso != NULL ? &xso->ssl : NULL; |
8b7be3aa HL |
2503 | } |
2504 | ||
2505 | /* | |
2506 | * SSL_attach_stream | |
2507 | * ----------------- | |
2508 | */ | |
cb68ce9f | 2509 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2510 | int ossl_quic_attach_stream(SSL *conn, SSL *stream) |
2511 | { | |
2512 | QCTX ctx; | |
9cab4bd5 HL |
2513 | QUIC_XSO *xso; |
2514 | int nref; | |
8b7be3aa HL |
2515 | |
2516 | if (!expect_quic_conn_only(conn, &ctx)) | |
2517 | return 0; | |
2518 | ||
2519 | if (stream == NULL || stream->type != SSL_TYPE_QUIC_XSO) | |
faa3a180 | 2520 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_NULL_PARAMETER, |
8b7be3aa HL |
2521 | "stream to attach must be a valid QUIC stream"); |
2522 | ||
9cab4bd5 HL |
2523 | xso = (QUIC_XSO *)stream; |
2524 | ||
8b7be3aa HL |
2525 | quic_lock(ctx.qc); |
2526 | ||
2527 | if (ctx.qc->default_xso != NULL) { | |
2528 | quic_unlock(ctx.qc); | |
faa3a180 | 2529 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8b7be3aa HL |
2530 | "connection already has a default stream"); |
2531 | } | |
2532 | ||
9cab4bd5 HL |
2533 | /* |
2534 | * It is a caller error for the XSO being attached as a default XSO to have | |
2535 | * more than one ref. | |
2536 | */ | |
4eecc6aa | 2537 | if (!CRYPTO_GET_REF(&xso->ssl.references, &nref)) { |
9cab4bd5 | 2538 | quic_unlock(ctx.qc); |
faa3a180 | 2539 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, |
9cab4bd5 HL |
2540 | "ref"); |
2541 | } | |
2542 | ||
2543 | if (nref != 1) { | |
2544 | quic_unlock(ctx.qc); | |
faa3a180 | 2545 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
9cab4bd5 HL |
2546 | "stream being attached must have " |
2547 | "only 1 reference"); | |
2548 | } | |
2549 | ||
2550 | /* Caller's reference to the XSO is transferred to us. */ | |
8b7be3aa | 2551 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 | 2552 | qc_set_default_xso(ctx.qc, xso, /*touch=*/1); |
8b7be3aa HL |
2553 | |
2554 | quic_unlock(ctx.qc); | |
2555 | return 1; | |
19cb0887 HL |
2556 | } |
2557 | ||
8a90df34 | 2558 | /* |
83df44ae HL |
2559 | * SSL_set_incoming_stream_policy |
2560 | * ------------------------------ | |
8a90df34 | 2561 | */ |
995ff282 | 2562 | QUIC_NEEDS_LOCK |
83df44ae | 2563 | static int qc_get_effective_incoming_stream_policy(QUIC_CONNECTION *qc) |
995ff282 | 2564 | { |
83df44ae HL |
2565 | switch (qc->incoming_stream_policy) { |
2566 | case SSL_INCOMING_STREAM_POLICY_AUTO: | |
995ff282 HL |
2567 | if ((qc->default_xso == NULL && !qc->default_xso_created) |
2568 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
83df44ae | 2569 | return SSL_INCOMING_STREAM_POLICY_ACCEPT; |
995ff282 | 2570 | else |
83df44ae | 2571 | return SSL_INCOMING_STREAM_POLICY_REJECT; |
995ff282 HL |
2572 | |
2573 | default: | |
83df44ae | 2574 | return qc->incoming_stream_policy; |
995ff282 HL |
2575 | } |
2576 | } | |
2577 | ||
2578 | QUIC_NEEDS_LOCK | |
2579 | static void qc_update_reject_policy(QUIC_CONNECTION *qc) | |
2580 | { | |
83df44ae HL |
2581 | int policy = qc_get_effective_incoming_stream_policy(qc); |
2582 | int enable_reject = (policy == SSL_INCOMING_STREAM_POLICY_REJECT); | |
995ff282 HL |
2583 | |
2584 | ossl_quic_channel_set_incoming_stream_auto_reject(qc->ch, | |
2585 | enable_reject, | |
83df44ae | 2586 | qc->incoming_stream_aec); |
995ff282 HL |
2587 | } |
2588 | ||
cb68ce9f | 2589 | QUIC_TAKES_LOCK |
83df44ae HL |
2590 | int ossl_quic_set_incoming_stream_policy(SSL *s, int policy, |
2591 | uint64_t aec) | |
8a90df34 HL |
2592 | { |
2593 | int ret = 1; | |
2594 | QCTX ctx; | |
2595 | ||
2596 | if (!expect_quic_conn_only(s, &ctx)) | |
2597 | return 0; | |
2598 | ||
2599 | quic_lock(ctx.qc); | |
2600 | ||
2601 | switch (policy) { | |
83df44ae HL |
2602 | case SSL_INCOMING_STREAM_POLICY_AUTO: |
2603 | case SSL_INCOMING_STREAM_POLICY_ACCEPT: | |
2604 | case SSL_INCOMING_STREAM_POLICY_REJECT: | |
2605 | ctx.qc->incoming_stream_policy = policy; | |
2606 | ctx.qc->incoming_stream_aec = aec; | |
8a90df34 HL |
2607 | break; |
2608 | ||
2609 | default: | |
2610 | ret = 0; | |
2611 | break; | |
2612 | } | |
2613 | ||
995ff282 | 2614 | qc_update_reject_policy(ctx.qc); |
8a90df34 HL |
2615 | quic_unlock(ctx.qc); |
2616 | return ret; | |
2617 | } | |
2618 | ||
cb68ce9f HL |
2619 | /* |
2620 | * SSL_accept_stream | |
2621 | * ----------------- | |
2622 | */ | |
cb68ce9f | 2623 | struct wait_for_incoming_stream_args { |
faa3a180 | 2624 | QCTX *ctx; |
cb68ce9f HL |
2625 | QUIC_STREAM *qs; |
2626 | }; | |
2627 | ||
2628 | QUIC_NEEDS_LOCK | |
2629 | static int wait_for_incoming_stream(void *arg) | |
2630 | { | |
2631 | struct wait_for_incoming_stream_args *args = arg; | |
faa3a180 HL |
2632 | QUIC_CONNECTION *qc = args->ctx->qc; |
2633 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(qc->ch); | |
cb68ce9f | 2634 | |
faa3a180 | 2635 | if (!ossl_quic_channel_is_active(qc->ch)) { |
cb68ce9f | 2636 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 2637 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
cb68ce9f HL |
2638 | return -1; |
2639 | } | |
2640 | ||
2641 | args->qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
2642 | if (args->qs != NULL) | |
2643 | return 1; /* got a stream */ | |
2644 | ||
2645 | return 0; /* did not get a stream, keep trying */ | |
2646 | } | |
2647 | ||
2648 | QUIC_TAKES_LOCK | |
2649 | SSL *ossl_quic_accept_stream(SSL *s, uint64_t flags) | |
2650 | { | |
2651 | QCTX ctx; | |
2652 | int ret; | |
2653 | SSL *new_s = NULL; | |
2654 | QUIC_STREAM_MAP *qsm; | |
2655 | QUIC_STREAM *qs; | |
2656 | QUIC_XSO *xso; | |
90cecc40 | 2657 | OSSL_RTT_INFO rtt_info; |
cb68ce9f HL |
2658 | |
2659 | if (!expect_quic_conn_only(s, &ctx)) | |
2660 | return NULL; | |
2661 | ||
2662 | quic_lock(ctx.qc); | |
2663 | ||
83df44ae HL |
2664 | if (qc_get_effective_incoming_stream_policy(ctx.qc) |
2665 | == SSL_INCOMING_STREAM_POLICY_REJECT) | |
cb68ce9f HL |
2666 | goto out; |
2667 | ||
2668 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
2669 | ||
2670 | qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
2671 | if (qs == NULL) { | |
2672 | if (qc_blocking_mode(ctx.qc) | |
2673 | && (flags & SSL_ACCEPT_STREAM_NO_BLOCK) == 0) { | |
2674 | struct wait_for_incoming_stream_args args; | |
2675 | ||
faa3a180 | 2676 | args.ctx = &ctx; |
cb68ce9f HL |
2677 | args.qs = NULL; |
2678 | ||
2679 | ret = block_until_pred(ctx.qc, wait_for_incoming_stream, &args, 0); | |
2680 | if (ret == 0) { | |
faa3a180 | 2681 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
cb68ce9f HL |
2682 | goto out; |
2683 | } else if (ret < 0 || args.qs == NULL) { | |
2684 | goto out; | |
2685 | } | |
2686 | ||
2687 | qs = args.qs; | |
2688 | } else { | |
2689 | goto out; | |
2690 | } | |
2691 | } | |
2692 | ||
2693 | xso = create_xso_from_stream(ctx.qc, qs); | |
2694 | if (xso == NULL) | |
2695 | goto out; | |
2696 | ||
90cecc40 HL |
2697 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(ctx.qc->ch), &rtt_info); |
2698 | ossl_quic_stream_map_remove_from_accept_queue(qsm, qs, | |
2699 | rtt_info.smoothed_rtt); | |
cb68ce9f HL |
2700 | new_s = &xso->ssl; |
2701 | ||
2702 | /* Calling this function inhibits default XSO autocreation. */ | |
995ff282 | 2703 | qc_touch_default_xso(ctx.qc); /* inhibits default XSO */ |
cb68ce9f HL |
2704 | |
2705 | out: | |
2706 | quic_unlock(ctx.qc); | |
2707 | return new_s; | |
2708 | } | |
2709 | ||
2710 | /* | |
2711 | * SSL_get_accept_stream_queue_len | |
2712 | * ------------------------------- | |
2713 | */ | |
2714 | QUIC_TAKES_LOCK | |
2715 | size_t ossl_quic_get_accept_stream_queue_len(SSL *s) | |
2716 | { | |
2717 | QCTX ctx; | |
2718 | size_t v; | |
2719 | ||
2720 | if (!expect_quic_conn_only(s, &ctx)) | |
2721 | return 0; | |
2722 | ||
2723 | quic_lock(ctx.qc); | |
2724 | ||
2725 | v = ossl_quic_stream_map_get_accept_queue_len(ossl_quic_channel_get_qsm(ctx.qc->ch)); | |
2726 | ||
2727 | quic_unlock(ctx.qc); | |
2728 | return v; | |
2729 | } | |
2730 | ||
c3a04ea2 HL |
2731 | /* |
2732 | * SSL_stream_reset | |
2733 | * ---------------- | |
2734 | */ | |
2735 | int ossl_quic_stream_reset(SSL *ssl, | |
2736 | const SSL_STREAM_RESET_ARGS *args, | |
2737 | size_t args_len) | |
2738 | { | |
2739 | QCTX ctx; | |
2740 | QUIC_STREAM_MAP *qsm; | |
2741 | QUIC_STREAM *qs; | |
2742 | uint64_t error_code; | |
e0bd2825 | 2743 | int ok, err; |
c3a04ea2 HL |
2744 | |
2745 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/0, &ctx)) | |
2746 | return 0; | |
2747 | ||
2748 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
2749 | qs = ctx.xso->stream; | |
2750 | error_code = (args != NULL ? args->quic_error_code : 0); | |
2751 | ||
e0bd2825 HL |
2752 | if (!quic_validate_for_write(ctx.xso, &err)) |
2753 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
2754 | ||
2f018d14 | 2755 | ok = ossl_quic_stream_map_reset_stream_send_part(qsm, qs, error_code); |
c3a04ea2 HL |
2756 | |
2757 | quic_unlock(ctx.qc); | |
2f018d14 | 2758 | return ok; |
c3a04ea2 HL |
2759 | } |
2760 | ||
2761 | /* | |
2762 | * SSL_get_stream_read_state | |
2763 | * ------------------------- | |
2764 | */ | |
2765 | static void quic_classify_stream(QUIC_CONNECTION *qc, | |
2766 | QUIC_STREAM *qs, | |
2767 | int is_write, | |
2768 | int *state, | |
2769 | uint64_t *app_error_code) | |
2770 | { | |
2771 | int local_init; | |
2772 | uint64_t final_size; | |
2773 | ||
2774 | local_init = (ossl_quic_stream_is_server_init(qs) == qc->as_server); | |
2775 | ||
2776 | if (app_error_code != NULL) | |
2777 | *app_error_code = UINT64_MAX; | |
2778 | else | |
2779 | app_error_code = &final_size; /* throw away value */ | |
2780 | ||
2781 | if (!ossl_quic_stream_is_bidi(qs) && local_init != is_write) { | |
2782 | /* | |
2783 | * Unidirectional stream and this direction of transmission doesn't | |
2784 | * exist. | |
2785 | */ | |
2786 | *state = SSL_STREAM_STATE_WRONG_DIR; | |
2787 | } else if (ossl_quic_channel_is_term_any(qc->ch)) { | |
2788 | /* Connection already closed. */ | |
2789 | *state = SSL_STREAM_STATE_CONN_CLOSED; | |
2790 | } else if (!is_write && qs->recv_fin_retired) { | |
2791 | /* Application has read a FIN. */ | |
2792 | *state = SSL_STREAM_STATE_FINISHED; | |
2793 | } else if ((!is_write && qs->stop_sending) | |
2f018d14 | 2794 | || (is_write && ossl_quic_stream_send_is_reset(qs))) { |
c3a04ea2 HL |
2795 | /* |
2796 | * Stream has been reset locally. FIN takes precedence over this for the | |
2797 | * read case as the application need not care if the stream is reset | |
2798 | * after a FIN has been successfully processed. | |
2799 | */ | |
2800 | *state = SSL_STREAM_STATE_RESET_LOCAL; | |
2801 | *app_error_code = !is_write | |
2802 | ? qs->stop_sending_aec | |
2803 | : qs->reset_stream_aec; | |
2f018d14 | 2804 | } else if ((!is_write && ossl_quic_stream_recv_is_reset(qs)) |
c3a04ea2 HL |
2805 | || (is_write && qs->peer_stop_sending)) { |
2806 | /* | |
2807 | * Stream has been reset remotely. */ | |
2808 | *state = SSL_STREAM_STATE_RESET_REMOTE; | |
2809 | *app_error_code = !is_write | |
2810 | ? qs->peer_reset_stream_aec | |
2811 | : qs->peer_stop_sending_aec; | |
2812 | } else if (is_write && ossl_quic_sstream_get_final_size(qs->sstream, | |
2813 | &final_size)) { | |
2814 | /* | |
2815 | * Stream has been finished. Stream reset takes precedence over this for | |
2816 | * the write case as peer may not have received all data. | |
2817 | */ | |
2818 | *state = SSL_STREAM_STATE_FINISHED; | |
2819 | } else { | |
2820 | /* Stream still healthy. */ | |
2821 | *state = SSL_STREAM_STATE_OK; | |
2822 | } | |
2823 | } | |
2824 | ||
2825 | static int quic_get_stream_state(SSL *ssl, int is_write) | |
2826 | { | |
2827 | QCTX ctx; | |
2828 | int state; | |
2829 | ||
2830 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, &ctx)) | |
2831 | return SSL_STREAM_STATE_NONE; | |
2832 | ||
2833 | quic_classify_stream(ctx.qc, ctx.xso->stream, is_write, &state, NULL); | |
2834 | quic_unlock(ctx.qc); | |
2835 | return state; | |
2836 | } | |
2837 | ||
2838 | int ossl_quic_get_stream_read_state(SSL *ssl) | |
2839 | { | |
2840 | return quic_get_stream_state(ssl, /*is_write=*/0); | |
2841 | } | |
2842 | ||
2843 | /* | |
2844 | * SSL_get_stream_write_state | |
2845 | * -------------------------- | |
2846 | */ | |
2847 | int ossl_quic_get_stream_write_state(SSL *ssl) | |
2848 | { | |
2849 | return quic_get_stream_state(ssl, /*is_write=*/1); | |
2850 | } | |
2851 | ||
2852 | /* | |
2853 | * SSL_get_stream_read_error_code | |
2854 | * ------------------------------ | |
2855 | */ | |
2856 | static int quic_get_stream_error_code(SSL *ssl, int is_write, | |
2857 | uint64_t *app_error_code) | |
2858 | { | |
2859 | QCTX ctx; | |
2860 | int state; | |
2861 | ||
2862 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, &ctx)) | |
2863 | return -1; | |
2864 | ||
2865 | quic_classify_stream(ctx.qc, ctx.xso->stream, /*is_write=*/0, | |
2866 | &state, app_error_code); | |
2867 | ||
2868 | quic_unlock(ctx.qc); | |
2869 | switch (state) { | |
2870 | case SSL_STREAM_STATE_FINISHED: | |
2871 | return 0; | |
2872 | case SSL_STREAM_STATE_RESET_LOCAL: | |
2873 | case SSL_STREAM_STATE_RESET_REMOTE: | |
2874 | return 1; | |
2875 | default: | |
2876 | return -1; | |
2877 | } | |
2878 | } | |
2879 | ||
2880 | int ossl_quic_get_stream_read_error_code(SSL *ssl, uint64_t *app_error_code) | |
2881 | { | |
2882 | return quic_get_stream_error_code(ssl, /*is_write=*/0, app_error_code); | |
2883 | } | |
2884 | ||
2885 | /* | |
2886 | * SSL_get_stream_write_error_code | |
2887 | * ------------------------------- | |
2888 | */ | |
2889 | int ossl_quic_get_stream_write_error_code(SSL *ssl, uint64_t *app_error_code) | |
2890 | { | |
2891 | return quic_get_stream_error_code(ssl, /*is_write=*/1, app_error_code); | |
2892 | } | |
2893 | ||
2894 | /* | |
2895 | * SSL_get_conn_close_info | |
2896 | * ----------------------- | |
2897 | */ | |
2898 | int ossl_quic_get_conn_close_info(SSL *ssl, | |
2899 | SSL_CONN_CLOSE_INFO *info, | |
2900 | size_t info_len) | |
2901 | { | |
2902 | QCTX ctx; | |
2903 | const QUIC_TERMINATE_CAUSE *tc; | |
2904 | ||
2905 | if (!expect_quic_conn_only(ssl, &ctx)) | |
2906 | return -1; | |
2907 | ||
2908 | tc = ossl_quic_channel_get_terminate_cause(ctx.qc->ch); | |
2909 | if (tc == NULL) | |
2910 | return 0; | |
2911 | ||
2912 | info->error_code = tc->error_code; | |
2913 | info->reason = NULL; /* TODO(QUIC): Wire reason */ | |
2914 | info->reason_len = 0; | |
2915 | info->is_local = !tc->remote; | |
2916 | info->is_transport = !tc->app; | |
2917 | return 1; | |
2918 | } | |
2919 | ||
2525109f HL |
2920 | /* |
2921 | * SSL_key_update | |
2922 | * -------------- | |
2923 | */ | |
2924 | int ossl_quic_key_update(SSL *ssl, int update_type) | |
2925 | { | |
2926 | QCTX ctx; | |
2927 | ||
2928 | if (!expect_quic_conn_only(ssl, &ctx)) | |
2929 | return 0; | |
2930 | ||
2931 | switch (update_type) { | |
2932 | case SSL_KEY_UPDATE_NOT_REQUESTED: | |
2933 | /* | |
2934 | * QUIC signals peer key update implicily by triggering a local | |
2935 | * spontaneous TXKU. Silently upgrade this to SSL_KEY_UPDATE_REQUESTED. | |
2936 | */ | |
2937 | case SSL_KEY_UPDATE_REQUESTED: | |
2938 | break; | |
2939 | ||
2940 | default: | |
2941 | /* Unknown type - error. */ | |
2942 | return 0; | |
2943 | } | |
2944 | ||
2945 | quic_lock(ctx.qc); | |
2946 | ||
2947 | /* Attempt to perform a TXKU. */ | |
2948 | if (!ossl_quic_channel_trigger_txku(ctx.qc->ch)) { | |
2949 | quic_unlock(ctx.qc); | |
2950 | return 0; | |
2951 | } | |
2952 | ||
2953 | quic_unlock(ctx.qc); | |
2954 | return 1; | |
2955 | } | |
2956 | ||
2957 | /* | |
2958 | * SSL_get_key_update_type | |
2959 | * ----------------------- | |
2960 | */ | |
2961 | int ossl_quic_get_key_update_type(const SSL *s) | |
2962 | { | |
2963 | /* | |
2964 | * We always handle key updates immediately so a key update is never | |
2965 | * pending. | |
2966 | */ | |
2967 | return SSL_KEY_UPDATE_NONE; | |
2968 | } | |
2969 | ||
22d53c88 HL |
2970 | /* |
2971 | * QUIC Front-End I/O API: SSL_CTX Management | |
2972 | * ========================================== | |
2973 | */ | |
2974 | ||
2975 | long ossl_quic_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2976 | { | |
2977 | switch (cmd) { | |
2978 | default: | |
8a1a6d6d | 2979 | return ssl3_ctx_ctrl(ctx, cmd, larg, parg); |
22d53c88 HL |
2980 | } |
2981 | } | |
2982 | ||
2983 | long ossl_quic_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2984 | { | |
63dfde87 MC |
2985 | QCTX ctx; |
2986 | ||
2987 | if (!expect_quic_conn_only(s, &ctx)) | |
2988 | return 0; | |
2989 | ||
2990 | switch (cmd) { | |
2991 | case SSL_CTRL_SET_MSG_CALLBACK: | |
5cf99b40 MC |
2992 | ossl_quic_channel_set_msg_callback(ctx.qc->ch, (ossl_msg_cb)fp, |
2993 | &ctx.qc->ssl); | |
63dfde87 MC |
2994 | /* This callback also needs to be set on the internal SSL object */ |
2995 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp);; | |
2996 | ||
2997 | default: | |
2998 | /* Probably a TLS related ctrl. Defer to our internal SSL object */ | |
2999 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp); | |
3000 | } | |
22d53c88 HL |
3001 | } |
3002 | ||
3003 | long ossl_quic_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
3004 | { | |
8a1a6d6d | 3005 | return ssl3_ctx_callback_ctrl(ctx, cmd, fp); |
22d53c88 HL |
3006 | } |
3007 | ||
3008 | int ossl_quic_renegotiate_check(SSL *ssl, int initok) | |
3009 | { | |
3010 | /* We never do renegotiation. */ | |
3011 | return 0; | |
3012 | } | |
3013 | ||
3014 | /* | |
d518854c MC |
3015 | * These functions define the TLSv1.2 (and below) ciphers that are supported by |
3016 | * the SSL_METHOD. Since QUIC only supports TLSv1.3 we don't support any. | |
22d53c88 | 3017 | */ |
22d53c88 HL |
3018 | |
3019 | int ossl_quic_num_ciphers(void) | |
3020 | { | |
d518854c | 3021 | return 0; |
22d53c88 HL |
3022 | } |
3023 | ||
3024 | const SSL_CIPHER *ossl_quic_get_cipher(unsigned int u) | |
3025 | { | |
d518854c | 3026 | return NULL; |
d5ab48a1 | 3027 | } |
16f3b542 HL |
3028 | |
3029 | /* | |
3030 | * Internal Testing APIs | |
3031 | * ===================== | |
3032 | */ | |
3033 | ||
3034 | QUIC_CHANNEL *ossl_quic_conn_get_channel(SSL *s) | |
3035 | { | |
3036 | QCTX ctx; | |
3037 | ||
3038 | if (!expect_quic_conn_only(s, &ctx)) | |
3039 | return NULL; | |
3040 | ||
3041 | return ctx.qc->ch; | |
3042 | } |