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99e1cc7b | 1 | /* |
da1c088f | 2 | * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved. |
99e1cc7b TM |
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" | |
22739cc3 | 18 | #include "internal/quic_engine.h" |
f7671012 | 19 | #include "internal/quic_port.h" |
22d53c88 | 20 | #include "internal/time.h" |
99e1cc7b | 21 | |
faa3a180 HL |
22 | typedef struct qctx_st QCTX; |
23 | ||
cb5c208b | 24 | static void aon_write_finish(QUIC_XSO *xso); |
23c04709 | 25 | static int create_channel(QUIC_CONNECTION *qc); |
21c80696 | 26 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs); |
faa3a180 HL |
27 | static int qc_try_create_default_xso_for_write(QCTX *ctx); |
28 | static int qc_wait_for_default_xso_for_read(QCTX *ctx); | |
8b7be3aa HL |
29 | static void quic_lock(QUIC_CONNECTION *qc); |
30 | static void quic_unlock(QUIC_CONNECTION *qc); | |
72ca0b88 | 31 | static void quic_lock_for_io(QCTX *ctx); |
faa3a180 | 32 | static int quic_do_handshake(QCTX *ctx); |
995ff282 HL |
33 | static void qc_update_reject_policy(QUIC_CONNECTION *qc); |
34 | static void qc_touch_default_xso(QUIC_CONNECTION *qc); | |
35 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch); | |
9cab4bd5 HL |
36 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
37 | int touch, QUIC_XSO **old_xso); | |
faa3a180 | 38 | static SSL *quic_conn_stream_new(QCTX *ctx, uint64_t flags, int need_lock); |
abfe3d51 | 39 | static int quic_validate_for_write(QUIC_XSO *xso, int *err); |
6d6b3a03 | 40 | static int quic_mutation_allowed(QUIC_CONNECTION *qc, int req_active); |
51e671e2 HL |
41 | static int qc_blocking_mode(const QUIC_CONNECTION *qc); |
42 | static int xso_blocking_mode(const QUIC_XSO *xso); | |
22d53c88 HL |
43 | |
44 | /* | |
45 | * QUIC Front-End I/O API: Common Utilities | |
46 | * ======================================== | |
47 | */ | |
48 | ||
49 | /* | |
50 | * Block until a predicate is met. | |
51 | * | |
52 | * Precondition: Must have a channel. | |
d7b1fadd | 53 | * Precondition: Must hold channel lock (unchecked). |
22d53c88 | 54 | */ |
d7b1fadd | 55 | QUIC_NEEDS_LOCK |
22d53c88 HL |
56 | static int block_until_pred(QUIC_CONNECTION *qc, |
57 | int (*pred)(void *arg), void *pred_arg, | |
58 | uint32_t flags) | |
59 | { | |
60 | QUIC_REACTOR *rtor; | |
61 | ||
62 | assert(qc->ch != NULL); | |
63 | ||
cae02d2b HL |
64 | /* |
65 | * Any attempt to block auto-disables tick inhibition as otherwise we will | |
66 | * hang around forever. | |
67 | */ | |
22739cc3 | 68 | ossl_quic_engine_set_inhibit_tick(qc->engine, 0); |
cae02d2b | 69 | |
22d53c88 | 70 | rtor = ossl_quic_channel_get_reactor(qc->ch); |
c019e1ef | 71 | return ossl_quic_reactor_block_until_pred(rtor, pred, pred_arg, flags, |
4847599b | 72 | qc->mutex); |
22d53c88 HL |
73 | } |
74 | ||
e3e9794a HL |
75 | static OSSL_TIME get_time(QUIC_CONNECTION *qc) |
76 | { | |
77 | if (qc->override_now_cb != NULL) | |
78 | return qc->override_now_cb(qc->override_now_cb_arg); | |
79 | else | |
80 | return ossl_time_now(); | |
81 | } | |
82 | ||
83 | static OSSL_TIME get_time_cb(void *arg) | |
84 | { | |
85 | QUIC_CONNECTION *qc = arg; | |
86 | ||
87 | return get_time(qc); | |
88 | } | |
89 | ||
faa3a180 HL |
90 | /* |
91 | * QCTX is a utility structure which provides information we commonly wish to | |
92 | * unwrap upon an API call being dispatched to us, namely: | |
93 | * | |
94 | * - a pointer to the QUIC_CONNECTION (regardless of whether a QCSO or QSSO | |
95 | * was passed); | |
96 | * - a pointer to any applicable QUIC_XSO (e.g. if a QSSO was passed, or if | |
97 | * a QCSO with a default stream was passed); | |
98 | * - whether a QSSO was passed (xso == NULL must not be used to determine this | |
99 | * because it may be non-NULL when a QCSO is passed if that QCSO has a | |
a954f761 HL |
100 | * default stream); |
101 | * - whether we are in "I/O context", meaning that non-normal errors can | |
102 | * be reported via SSL_get_error() as well as via ERR. Functions such as | |
103 | * SSL_read(), SSL_write() and SSL_do_handshake() are "I/O context" | |
104 | * functions which are allowed to change the value returned by | |
105 | * SSL_get_error. However, other functions (including functions which call | |
106 | * SSL_do_handshake() implicitly) are not allowed to change the return value | |
107 | * of SSL_get_error. | |
faa3a180 HL |
108 | */ |
109 | struct qctx_st { | |
110 | QUIC_CONNECTION *qc; | |
111 | QUIC_XSO *xso; | |
a954f761 | 112 | int is_stream, in_io; |
faa3a180 HL |
113 | }; |
114 | ||
72ca0b88 HL |
115 | QUIC_NEEDS_LOCK |
116 | static void quic_set_last_error(QCTX *ctx, int last_error) | |
117 | { | |
118 | if (!ctx->in_io) | |
119 | return; | |
120 | ||
121 | if (ctx->is_stream && ctx->xso != NULL) | |
122 | ctx->xso->last_error = last_error; | |
123 | else if (!ctx->is_stream && ctx->qc != NULL) | |
124 | ctx->qc->last_error = last_error; | |
125 | } | |
126 | ||
22d53c88 HL |
127 | /* |
128 | * Raise a 'normal' error, meaning one that can be reported via SSL_get_error() | |
faa3a180 HL |
129 | * rather than via ERR. Note that normal errors must always be raised while |
130 | * holding a lock. | |
22d53c88 | 131 | */ |
faa3a180 HL |
132 | QUIC_NEEDS_LOCK |
133 | static int quic_raise_normal_error(QCTX *ctx, | |
22d53c88 HL |
134 | int err) |
135 | { | |
72ca0b88 HL |
136 | assert(ctx->in_io); |
137 | quic_set_last_error(ctx, err); | |
faa3a180 | 138 | |
22d53c88 HL |
139 | return 0; |
140 | } | |
141 | ||
142 | /* | |
143 | * Raise a 'non-normal' error, meaning any error that is not reported via | |
144 | * SSL_get_error() and must be reported via ERR. | |
e88cdb8e HL |
145 | * |
146 | * qc should be provided if available. In exceptional circumstances when qc is | |
147 | * not known NULL may be passed. This should generally only happen when an | |
148 | * expect_...() function defined below fails, which generally indicates a | |
149 | * dispatch error or caller error. | |
faa3a180 HL |
150 | * |
151 | * ctx should be NULL if the connection lock is not held. | |
22d53c88 | 152 | */ |
a954f761 | 153 | static int quic_raise_non_normal_error(QCTX *ctx, |
22d53c88 HL |
154 | const char *file, |
155 | int line, | |
156 | const char *func, | |
157 | int reason, | |
158 | const char *fmt, | |
159 | ...) | |
160 | { | |
161 | va_list args; | |
162 | ||
faa3a180 | 163 | if (ctx != NULL) { |
72ca0b88 | 164 | quic_set_last_error(ctx, SSL_ERROR_SSL); |
9c3ea4e1 TM |
165 | |
166 | if (reason == SSL_R_PROTOCOL_IS_SHUTDOWN && ctx->qc != NULL) | |
167 | ossl_quic_channel_restore_err_state(ctx->qc->ch); | |
faa3a180 | 168 | } |
e88cdb8e | 169 | |
9c3ea4e1 TM |
170 | ERR_new(); |
171 | ERR_set_debug(file, line, func); | |
172 | ||
173 | va_start(args, fmt); | |
174 | ERR_vset_error(ERR_LIB_SSL, reason, fmt, args); | |
175 | va_end(args); | |
176 | ||
22d53c88 HL |
177 | return 0; |
178 | } | |
179 | ||
faa3a180 HL |
180 | #define QUIC_RAISE_NORMAL_ERROR(ctx, err) \ |
181 | quic_raise_normal_error((ctx), (err)) | |
22d53c88 | 182 | |
faa3a180 | 183 | #define QUIC_RAISE_NON_NORMAL_ERROR(ctx, reason, msg) \ |
a954f761 | 184 | quic_raise_non_normal_error((ctx), \ |
22d53c88 HL |
185 | OPENSSL_FILE, OPENSSL_LINE, \ |
186 | OPENSSL_FUNC, \ | |
187 | (reason), \ | |
188 | (msg)) | |
189 | ||
e88cdb8e HL |
190 | /* |
191 | * Given a QCSO or QSSO, initialises a QCTX, determining the contextually | |
192 | * applicable QUIC_CONNECTION pointer and, if applicable, QUIC_XSO pointer. | |
193 | * | |
194 | * After this returns 1, all fields of the passed QCTX are initialised. | |
195 | * Returns 0 on failure. This function is intended to be used to provide API | |
196 | * semantics and as such, it invokes QUIC_RAISE_NON_NORMAL_ERROR() on failure. | |
22d53c88 | 197 | */ |
e88cdb8e | 198 | static int expect_quic(const SSL *s, QCTX *ctx) |
22d53c88 | 199 | { |
e88cdb8e HL |
200 | QUIC_CONNECTION *qc; |
201 | QUIC_XSO *xso; | |
202 | ||
203 | ctx->qc = NULL; | |
204 | ctx->xso = NULL; | |
205 | ctx->is_stream = 0; | |
206 | ||
207 | if (s == NULL) | |
a954f761 | 208 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_PASSED_NULL_PARAMETER, NULL); |
22d53c88 | 209 | |
e88cdb8e HL |
210 | switch (s->type) { |
211 | case SSL_TYPE_QUIC_CONNECTION: | |
212 | qc = (QUIC_CONNECTION *)s; | |
213 | ctx->qc = qc; | |
cb5c208b | 214 | ctx->xso = qc->default_xso; |
e88cdb8e | 215 | ctx->is_stream = 0; |
a954f761 | 216 | ctx->in_io = 0; |
e88cdb8e HL |
217 | return 1; |
218 | ||
219 | case SSL_TYPE_QUIC_XSO: | |
220 | xso = (QUIC_XSO *)s; | |
cb5c208b | 221 | ctx->qc = xso->conn; |
e88cdb8e HL |
222 | ctx->xso = xso; |
223 | ctx->is_stream = 1; | |
a954f761 | 224 | ctx->in_io = 0; |
e88cdb8e HL |
225 | return 1; |
226 | ||
227 | default: | |
a954f761 | 228 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
e88cdb8e HL |
229 | } |
230 | } | |
231 | ||
232 | /* | |
233 | * Like expect_quic(), but requires a QUIC_XSO be contextually available. In | |
234 | * other words, requires that the passed QSO be a QSSO or a QCSO with a default | |
235 | * stream. | |
21c80696 HL |
236 | * |
237 | * remote_init determines if we expect the default XSO to be remotely created or | |
238 | * not. If it is -1, do not instantiate a default XSO if one does not yet exist. | |
8b7be3aa HL |
239 | * |
240 | * Channel mutex is acquired and retained on success. | |
e88cdb8e | 241 | */ |
8b7be3aa HL |
242 | QUIC_ACQUIRES_LOCK |
243 | static int ossl_unused expect_quic_with_stream_lock(const SSL *s, int remote_init, | |
a954f761 | 244 | int in_io, QCTX *ctx) |
e88cdb8e HL |
245 | { |
246 | if (!expect_quic(s, ctx)) | |
247 | return 0; | |
248 | ||
72ca0b88 HL |
249 | if (in_io) |
250 | quic_lock_for_io(ctx); | |
251 | else | |
252 | quic_lock(ctx->qc); | |
8b7be3aa | 253 | |
21c80696 | 254 | if (ctx->xso == NULL && remote_init >= 0) { |
6d6b3a03 | 255 | if (!quic_mutation_allowed(ctx->qc, /*req_active=*/0)) { |
faa3a180 | 256 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
8b7be3aa HL |
257 | goto err; |
258 | } | |
259 | ||
260 | /* If we haven't finished the handshake, try to advance it. */ | |
faa3a180 | 261 | if (quic_do_handshake(ctx) < 1) |
8b7be3aa HL |
262 | /* ossl_quic_do_handshake raised error here */ |
263 | goto err; | |
264 | ||
265 | if (remote_init == 0) { | |
faa3a180 | 266 | if (!qc_try_create_default_xso_for_write(ctx)) |
8b7be3aa HL |
267 | goto err; |
268 | } else { | |
faa3a180 | 269 | if (!qc_wait_for_default_xso_for_read(ctx)) |
8b7be3aa HL |
270 | goto err; |
271 | } | |
272 | ||
21c80696 HL |
273 | ctx->xso = ctx->qc->default_xso; |
274 | } | |
275 | ||
8b7be3aa | 276 | if (ctx->xso == NULL) { |
a954f761 | 277 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
8b7be3aa HL |
278 | goto err; |
279 | } | |
280 | ||
23406e30 | 281 | return 1; /* coverity[missing_unlock]: lock held */ |
e88cdb8e | 282 | |
8b7be3aa HL |
283 | err: |
284 | quic_unlock(ctx->qc); | |
285 | return 0; | |
e88cdb8e | 286 | } |
22d53c88 | 287 | |
e88cdb8e HL |
288 | /* |
289 | * Like expect_quic(), but fails if called on a QUIC_XSO. ctx->xso may still | |
290 | * be non-NULL if the QCSO has a default stream. | |
291 | */ | |
56df4cf2 | 292 | static int ossl_unused expect_quic_conn_only(const SSL *s, QCTX *ctx) |
e88cdb8e HL |
293 | { |
294 | if (!expect_quic(s, ctx)) | |
295 | return 0; | |
296 | ||
297 | if (ctx->is_stream) | |
a954f761 | 298 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_CONN_USE_ONLY, NULL); |
e88cdb8e HL |
299 | |
300 | return 1; | |
22d53c88 HL |
301 | } |
302 | ||
4847599b HL |
303 | /* |
304 | * Ensures that the channel mutex is held for a method which touches channel | |
305 | * state. | |
306 | * | |
307 | * Precondition: Channel mutex is not held (unchecked) | |
308 | */ | |
20f45743 | 309 | static void quic_lock(QUIC_CONNECTION *qc) |
4847599b | 310 | { |
629b408c | 311 | #if defined(OPENSSL_THREADS) |
ffce2946 | 312 | ossl_crypto_mutex_lock(qc->mutex); |
629b408c | 313 | #endif |
4847599b HL |
314 | } |
315 | ||
72ca0b88 HL |
316 | static void quic_lock_for_io(QCTX *ctx) |
317 | { | |
318 | quic_lock(ctx->qc); | |
319 | ctx->in_io = 1; | |
320 | ||
321 | /* | |
322 | * We are entering an I/O function so we must update the values returned by | |
323 | * SSL_get_error and SSL_want. Set no error. This will be overridden later | |
324 | * if a call to QUIC_RAISE_NORMAL_ERROR or QUIC_RAISE_NON_NORMAL_ERROR | |
325 | * occurs during the API call. | |
326 | */ | |
327 | quic_set_last_error(ctx, SSL_ERROR_NONE); | |
328 | } | |
329 | ||
4847599b HL |
330 | /* Precondition: Channel mutex is held (unchecked) */ |
331 | QUIC_NEEDS_LOCK | |
332 | static void quic_unlock(QUIC_CONNECTION *qc) | |
333 | { | |
629b408c | 334 | #if defined(OPENSSL_THREADS) |
ffce2946 | 335 | ossl_crypto_mutex_unlock(qc->mutex); |
629b408c | 336 | #endif |
4847599b HL |
337 | } |
338 | ||
6d6b3a03 HL |
339 | /* |
340 | * This predicate is the criterion which should determine API call rejection for | |
341 | * *most* mutating API calls, particularly stream-related operations for send | |
342 | * parts. | |
343 | * | |
344 | * A call is rejected (this function returns 0) if shutdown is in progress | |
345 | * (stream flushing), or we are in a TERMINATING or TERMINATED state. If | |
346 | * req_active=1, the connection must be active (i.e., the IDLE state is also | |
347 | * rejected). | |
348 | */ | |
349 | static int quic_mutation_allowed(QUIC_CONNECTION *qc, int req_active) | |
350 | { | |
351 | if (qc->shutting_down || ossl_quic_channel_is_term_any(qc->ch)) | |
352 | return 0; | |
353 | ||
354 | if (req_active && !ossl_quic_channel_is_active(qc->ch)) | |
355 | return 0; | |
356 | ||
357 | return 1; | |
358 | } | |
4847599b | 359 | |
22d53c88 HL |
360 | /* |
361 | * QUIC Front-End I/O API: Initialization | |
362 | * ====================================== | |
363 | * | |
364 | * SSL_new => ossl_quic_new | |
365 | * ossl_quic_init | |
366 | * SSL_reset => ossl_quic_reset | |
367 | * SSL_clear => ossl_quic_clear | |
368 | * ossl_quic_deinit | |
369 | * SSL_free => ossl_quic_free | |
370 | * | |
f0d9757c HL |
371 | * SSL_set_options => ossl_quic_set_options |
372 | * SSL_get_options => ossl_quic_get_options | |
373 | * SSL_clear_options => ossl_quic_clear_options | |
374 | * | |
22d53c88 HL |
375 | */ |
376 | ||
377 | /* SSL_new */ | |
38b051a1 TM |
378 | SSL *ossl_quic_new(SSL_CTX *ctx) |
379 | { | |
22d53c88 HL |
380 | QUIC_CONNECTION *qc = NULL; |
381 | SSL *ssl_base = NULL; | |
a7f41885 | 382 | SSL_CONNECTION *sc = NULL; |
38b051a1 TM |
383 | |
384 | qc = OPENSSL_zalloc(sizeof(*qc)); | |
8ee3ee10 | 385 | if (qc == NULL) { |
a954f761 | 386 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_CRYPTO_LIB, NULL); |
0e2e4b3e | 387 | return NULL; |
8ee3ee10 | 388 | } |
55936eee TM |
389 | #if defined(OPENSSL_THREADS) |
390 | if ((qc->mutex = ossl_crypto_mutex_new()) == NULL) { | |
391 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_CRYPTO_LIB, NULL); | |
392 | goto err; | |
393 | } | |
394 | #endif | |
38b051a1 | 395 | |
22d53c88 HL |
396 | /* Initialise the QUIC_CONNECTION's stub header. */ |
397 | ssl_base = &qc->ssl; | |
a7f41885 | 398 | if (!ossl_ssl_init(ssl_base, ctx, ctx->method, SSL_TYPE_QUIC_CONNECTION)) { |
22d53c88 | 399 | ssl_base = NULL; |
a954f761 | 400 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
38b051a1 TM |
401 | goto err; |
402 | } | |
38b051a1 | 403 | |
4e3a55fd | 404 | qc->tls = ossl_ssl_connection_new_int(ctx, TLS_method()); |
8ee3ee10 | 405 | if (qc->tls == NULL || (sc = SSL_CONNECTION_FROM_SSL(qc->tls)) == NULL) { |
a954f761 | 406 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
8ee3ee10 TM |
407 | goto err; |
408 | } | |
f0d9757c | 409 | |
43788fb3 | 410 | /* override the user_ssl of the inner connection */ |
f082205b | 411 | sc->s3.flags |= TLS1_FLAGS_QUIC; |
a7f41885 | 412 | |
f0d9757c | 413 | /* Restrict options derived from the SSL_CTX. */ |
db2f98c4 | 414 | sc->options &= OSSL_QUIC_PERMITTED_OPTIONS_CONN; |
6e5550a1 | 415 | sc->pha_enabled = 0; |
f0d9757c | 416 | |
629b408c | 417 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
f2f7c4f1 HL |
418 | qc->is_thread_assisted |
419 | = (ssl_base->method == OSSL_QUIC_client_thread_method()); | |
629b408c | 420 | #endif |
f2f7c4f1 | 421 | |
44cb36d0 | 422 | qc->as_server = 0; /* TODO(QUIC SERVER): add server support */ |
dfb9ae14 HL |
423 | qc->as_server_state = qc->as_server; |
424 | ||
8b7be3aa | 425 | qc->default_stream_mode = SSL_DEFAULT_STREAM_MODE_AUTO_BIDI; |
21c80696 | 426 | qc->default_ssl_mode = qc->ssl.ctx->mode; |
db2f98c4 | 427 | qc->default_ssl_options = qc->ssl.ctx->options & OSSL_QUIC_PERMITTED_OPTIONS; |
51e671e2 HL |
428 | qc->desires_blocking = 1; |
429 | qc->blocking = 0; | |
83df44ae | 430 | qc->incoming_stream_policy = SSL_INCOMING_STREAM_POLICY_AUTO; |
21c80696 | 431 | qc->last_error = SSL_ERROR_NONE; |
a7f41885 | 432 | |
23c04709 HL |
433 | if (!create_channel(qc)) |
434 | goto err; | |
435 | ||
5cf99b40 MC |
436 | ossl_quic_channel_set_msg_callback(qc->ch, ctx->msg_callback, ssl_base); |
437 | ossl_quic_channel_set_msg_callback_arg(qc->ch, ctx->msg_callback_arg); | |
438 | ||
995ff282 HL |
439 | qc_update_reject_policy(qc); |
440 | ||
21c80696 HL |
441 | /* |
442 | * We do not create the default XSO yet. The reason for this is that the | |
443 | * stream ID of the default XSO will depend on whether the stream is client | |
444 | * or server-initiated, which depends on who transmits first. Since we do | |
445 | * not know whether the application will be using a client-transmits-first | |
446 | * or server-transmits-first protocol, we defer default XSO creation until | |
447 | * the client calls SSL_read() or SSL_write(). If it calls SSL_read() first, | |
448 | * we take that as a cue that the client is expecting a server-initiated | |
449 | * stream, and vice versa if SSL_write() is called first. | |
450 | */ | |
22d53c88 HL |
451 | return ssl_base; |
452 | ||
38b051a1 | 453 | err: |
55936eee | 454 | if (ssl_base == NULL) { |
629b408c | 455 | #if defined(OPENSSL_THREADS) |
62cb7c81 | 456 | ossl_crypto_mutex_free(&qc->mutex); |
629b408c | 457 | #endif |
55936eee TM |
458 | OPENSSL_free(qc); |
459 | } else { | |
460 | SSL_free(ssl_base); | |
2dbc39de | 461 | } |
38b051a1 TM |
462 | return NULL; |
463 | } | |
464 | ||
22d53c88 | 465 | /* SSL_free */ |
a8489257 | 466 | QUIC_TAKES_LOCK |
22d53c88 HL |
467 | void ossl_quic_free(SSL *s) |
468 | { | |
072328dd | 469 | QCTX ctx; |
9cab4bd5 | 470 | int is_default; |
22d53c88 | 471 | |
072328dd HL |
472 | /* We should never be called on anything but a QSO. */ |
473 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
474 | return; |
475 | ||
22b1a96f HL |
476 | quic_lock(ctx.qc); |
477 | ||
2dbc39de HL |
478 | if (ctx.is_stream) { |
479 | /* | |
480 | * When a QSSO is freed, the XSO is freed immediately, because the XSO | |
481 | * itself only contains API personality layer data. However the | |
482 | * underlying QUIC_STREAM is not freed immediately but is instead marked | |
483 | * as deleted for later collection. | |
484 | */ | |
485 | ||
2dbc39de HL |
486 | assert(ctx.qc->num_xso > 0); |
487 | --ctx.qc->num_xso; | |
488 | ||
9aaafc26 | 489 | /* If a stream's send part has not been finished, auto-reset it. */ |
2f018d14 HL |
490 | if (( ctx.xso->stream->send_state == QUIC_SSTREAM_STATE_READY |
491 | || ctx.xso->stream->send_state == QUIC_SSTREAM_STATE_SEND) | |
9aaafc26 HL |
492 | && !ossl_quic_sstream_get_final_size(ctx.xso->stream->sstream, NULL)) |
493 | ossl_quic_stream_map_reset_stream_send_part(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
494 | ctx.xso->stream, 0); | |
2dbc39de | 495 | |
9aaafc26 | 496 | /* Do STOP_SENDING for the receive part, if applicable. */ |
2f018d14 HL |
497 | if ( ctx.xso->stream->recv_state == QUIC_RSTREAM_STATE_RECV |
498 | || ctx.xso->stream->recv_state == QUIC_RSTREAM_STATE_SIZE_KNOWN) | |
9aaafc26 HL |
499 | ossl_quic_stream_map_stop_sending_recv_part(ossl_quic_channel_get_qsm(ctx.qc->ch), |
500 | ctx.xso->stream, 0); | |
f20fdd16 HL |
501 | |
502 | /* Update stream state. */ | |
9aaafc26 HL |
503 | ctx.xso->stream->deleted = 1; |
504 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
f20fdd16 HL |
505 | ctx.xso->stream); |
506 | ||
9cab4bd5 | 507 | is_default = (ctx.xso == ctx.qc->default_xso); |
2dbc39de HL |
508 | quic_unlock(ctx.qc); |
509 | ||
9cab4bd5 HL |
510 | /* |
511 | * Unref the connection in most cases; the XSO has a ref to the QC and | |
512 | * not vice versa. But for a default XSO, to avoid circular references, | |
513 | * the QC refs the XSO but the XSO does not ref the QC. If we are the | |
514 | * default XSO, we only get here when the QC is being torn down anyway, | |
515 | * so don't call SSL_free(qc) as we are already in it. | |
516 | */ | |
517 | if (!is_default) | |
518 | SSL_free(&ctx.qc->ssl); | |
519 | ||
2dbc39de HL |
520 | /* Note: SSL_free calls OPENSSL_free(xso) for us */ |
521 | return; | |
522 | } | |
523 | ||
2dbc39de HL |
524 | /* |
525 | * Free the default XSO, if any. The QUIC_STREAM is not deleted at this | |
526 | * stage, but is freed during the channel free when the whole QSM is freed. | |
527 | */ | |
21c80696 HL |
528 | if (ctx.qc->default_xso != NULL) { |
529 | QUIC_XSO *xso = ctx.qc->default_xso; | |
530 | ||
531 | quic_unlock(ctx.qc); | |
532 | SSL_free(&xso->ssl); | |
533 | quic_lock(ctx.qc); | |
9cab4bd5 | 534 | ctx.qc->default_xso = NULL; |
21c80696 | 535 | } |
2dbc39de HL |
536 | |
537 | /* Ensure we have no remaining XSOs. */ | |
538 | assert(ctx.qc->num_xso == 0); | |
539 | ||
629b408c | 540 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
072328dd HL |
541 | if (ctx.qc->is_thread_assisted && ctx.qc->started) { |
542 | ossl_quic_thread_assist_wait_stopped(&ctx.qc->thread_assist); | |
543 | ossl_quic_thread_assist_cleanup(&ctx.qc->thread_assist); | |
dbe7b51a | 544 | } |
629b408c | 545 | #endif |
f2f7c4f1 | 546 | |
f7f2b665 MC |
547 | SSL_free(ctx.qc->tls); |
548 | ||
072328dd | 549 | ossl_quic_channel_free(ctx.qc->ch); |
f7671012 | 550 | ossl_quic_port_free(ctx.qc->port); |
22739cc3 | 551 | ossl_quic_engine_free(ctx.qc->engine); |
22d53c88 | 552 | |
18fd0ea0 MC |
553 | BIO_free_all(ctx.qc->net_rbio); |
554 | BIO_free_all(ctx.qc->net_wbio); | |
d1ac77b1 | 555 | |
45b7c7e0 | 556 | quic_unlock(ctx.qc); /* tsan doesn't like freeing locked mutexes */ |
629b408c | 557 | #if defined(OPENSSL_THREADS) |
45b7c7e0 | 558 | ossl_crypto_mutex_free(&ctx.qc->mutex); |
629b408c | 559 | #endif |
f7f2b665 MC |
560 | |
561 | /* | |
562 | * Note: SSL_free (that called this function) calls OPENSSL_free(ctx.qc) for | |
563 | * us | |
564 | */ | |
22d53c88 HL |
565 | } |
566 | ||
567 | /* SSL method init */ | |
38b051a1 | 568 | int ossl_quic_init(SSL *s) |
99e1cc7b | 569 | { |
22d53c88 HL |
570 | /* Same op as SSL_clear, forward the call. */ |
571 | return ossl_quic_clear(s); | |
99e1cc7b TM |
572 | } |
573 | ||
22d53c88 | 574 | /* SSL method deinit */ |
38b051a1 TM |
575 | void ossl_quic_deinit(SSL *s) |
576 | { | |
22d53c88 | 577 | /* No-op. */ |
38b051a1 TM |
578 | } |
579 | ||
5f69db39 | 580 | /* SSL_clear (ssl_reset method) */ |
22d53c88 HL |
581 | int ossl_quic_reset(SSL *s) |
582 | { | |
072328dd | 583 | QCTX ctx; |
22d53c88 | 584 | |
072328dd | 585 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
586 | return 0; |
587 | ||
96014840 | 588 | ERR_raise(ERR_LIB_SSL, ERR_R_UNSUPPORTED); |
5f69db39 | 589 | return 0; |
22d53c88 HL |
590 | } |
591 | ||
5f69db39 | 592 | /* ssl_clear method (unused) */ |
22d53c88 | 593 | int ossl_quic_clear(SSL *s) |
99e1cc7b | 594 | { |
072328dd | 595 | QCTX ctx; |
38b051a1 | 596 | |
072328dd | 597 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
598 | return 0; |
599 | ||
b139f7a2 HL |
600 | ERR_raise(ERR_LIB_SSL, ERR_R_UNSUPPORTED); |
601 | return 0; | |
22d53c88 | 602 | } |
38b051a1 | 603 | |
e3e9794a HL |
604 | int ossl_quic_conn_set_override_now_cb(SSL *s, |
605 | OSSL_TIME (*now_cb)(void *arg), | |
606 | void *now_cb_arg) | |
b212d554 | 607 | { |
072328dd | 608 | QCTX ctx; |
b212d554 | 609 | |
072328dd | 610 | if (!expect_quic(s, &ctx)) |
e3e9794a HL |
611 | return 0; |
612 | ||
613 | quic_lock(ctx.qc); | |
072328dd HL |
614 | |
615 | ctx.qc->override_now_cb = now_cb; | |
616 | ctx.qc->override_now_cb_arg = now_cb_arg; | |
e3e9794a HL |
617 | |
618 | quic_unlock(ctx.qc); | |
619 | return 1; | |
b212d554 HL |
620 | } |
621 | ||
3b1ab5a3 HL |
622 | void ossl_quic_conn_force_assist_thread_wake(SSL *s) |
623 | { | |
072328dd HL |
624 | QCTX ctx; |
625 | ||
626 | if (!expect_quic(s, &ctx)) | |
627 | return; | |
3b1ab5a3 | 628 | |
629b408c | 629 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
072328dd HL |
630 | if (ctx.qc->is_thread_assisted && ctx.qc->started) |
631 | ossl_quic_thread_assist_notify_deadline_changed(&ctx.qc->thread_assist); | |
629b408c | 632 | #endif |
3b1ab5a3 HL |
633 | } |
634 | ||
995ff282 HL |
635 | QUIC_NEEDS_LOCK |
636 | static void qc_touch_default_xso(QUIC_CONNECTION *qc) | |
637 | { | |
638 | qc->default_xso_created = 1; | |
639 | qc_update_reject_policy(qc); | |
640 | } | |
641 | ||
9cab4bd5 HL |
642 | /* |
643 | * Changes default XSO. Allows caller to keep reference to the old default XSO | |
644 | * (if any). Reference to new XSO is transferred from caller. | |
645 | */ | |
995ff282 | 646 | QUIC_NEEDS_LOCK |
9cab4bd5 HL |
647 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
648 | int touch, | |
649 | QUIC_XSO **old_xso) | |
995ff282 | 650 | { |
9cab4bd5 HL |
651 | int refs; |
652 | ||
653 | *old_xso = NULL; | |
654 | ||
655 | if (qc->default_xso != xso) { | |
656 | *old_xso = qc->default_xso; /* transfer old XSO ref to caller */ | |
657 | ||
658 | qc->default_xso = xso; | |
659 | ||
660 | if (xso == NULL) { | |
661 | /* | |
662 | * Changing to not having a default XSO. XSO becomes standalone and | |
663 | * now has a ref to the QC. | |
664 | */ | |
665 | if (!ossl_assert(SSL_up_ref(&qc->ssl))) | |
666 | return; | |
667 | } else { | |
668 | /* | |
669 | * Changing from not having a default XSO to having one. The new XSO | |
670 | * will have had a reference to the QC we need to drop to avoid a | |
671 | * circular reference. | |
3a61a96c HL |
672 | * |
673 | * Currently we never change directly from one default XSO to | |
674 | * another, though this function would also still be correct if this | |
675 | * weren't the case. | |
9cab4bd5 | 676 | */ |
3a61a96c HL |
677 | assert(*old_xso == NULL); |
678 | ||
4eecc6aa | 679 | CRYPTO_DOWN_REF(&qc->ssl.references, &refs); |
9cab4bd5 HL |
680 | assert(refs > 0); |
681 | } | |
682 | } | |
683 | ||
995ff282 HL |
684 | if (touch) |
685 | qc_touch_default_xso(qc); | |
686 | } | |
687 | ||
9cab4bd5 HL |
688 | /* |
689 | * Changes default XSO, releasing the reference to any previous default XSO. | |
690 | * Reference to new XSO is transferred from caller. | |
691 | */ | |
692 | QUIC_NEEDS_LOCK | |
693 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch) | |
694 | { | |
695 | QUIC_XSO *old_xso = NULL; | |
696 | ||
697 | qc_set_default_xso_keep_ref(qc, xso, touch, &old_xso); | |
698 | ||
699 | if (old_xso != NULL) | |
700 | SSL_free(&old_xso->ssl); | |
701 | } | |
702 | ||
db2f98c4 HL |
703 | QUIC_NEEDS_LOCK |
704 | static void xso_update_options(QUIC_XSO *xso) | |
705 | { | |
706 | int cleanse = ((xso->ssl_options & SSL_OP_CLEANSE_PLAINTEXT) != 0); | |
707 | ||
708 | if (xso->stream->rstream != NULL) | |
709 | ossl_quic_rstream_set_cleanse(xso->stream->rstream, cleanse); | |
710 | ||
711 | if (xso->stream->sstream != NULL) | |
712 | ossl_quic_sstream_set_cleanse(xso->stream->sstream, cleanse); | |
713 | } | |
714 | ||
715 | /* | |
716 | * SSL_set_options | |
717 | * --------------- | |
718 | * | |
719 | * Setting options on a QCSO | |
720 | * - configures the handshake-layer options; | |
721 | * - configures the default data-plane options for new streams; | |
722 | * - configures the data-plane options on the default XSO, if there is one. | |
723 | * | |
724 | * Setting options on a QSSO | |
725 | * - configures data-plane options for that stream only. | |
726 | */ | |
d6e7ebba | 727 | QUIC_TAKES_LOCK |
f0d9757c HL |
728 | static uint64_t quic_mask_or_options(SSL *ssl, uint64_t mask_value, uint64_t or_value) |
729 | { | |
730 | QCTX ctx; | |
db2f98c4 | 731 | uint64_t hs_mask_value, hs_or_value, ret; |
f0d9757c | 732 | |
d6e7ebba | 733 | if (!expect_quic(ssl, &ctx)) |
f0d9757c HL |
734 | return 0; |
735 | ||
d6e7ebba HL |
736 | quic_lock(ctx.qc); |
737 | ||
db2f98c4 HL |
738 | if (!ctx.is_stream) { |
739 | /* | |
740 | * If we were called on the connection, we apply any handshake option | |
741 | * changes. | |
742 | */ | |
743 | hs_mask_value = (mask_value & OSSL_QUIC_PERMITTED_OPTIONS_CONN); | |
744 | hs_or_value = (or_value & OSSL_QUIC_PERMITTED_OPTIONS_CONN); | |
f0d9757c | 745 | |
db2f98c4 HL |
746 | SSL_clear_options(ctx.qc->tls, hs_mask_value); |
747 | SSL_set_options(ctx.qc->tls, hs_or_value); | |
d6e7ebba | 748 | |
db2f98c4 HL |
749 | /* Update defaults for new streams. */ |
750 | ctx.qc->default_ssl_options | |
751 | = ((ctx.qc->default_ssl_options & ~mask_value) | or_value) | |
752 | & OSSL_QUIC_PERMITTED_OPTIONS; | |
753 | } | |
18ca1c8f | 754 | |
db2f98c4 HL |
755 | if (ctx.xso != NULL) { |
756 | ctx.xso->ssl_options | |
757 | = ((ctx.xso->ssl_options & ~mask_value) | or_value) | |
758 | & OSSL_QUIC_PERMITTED_OPTIONS_STREAM; | |
759 | ||
760 | xso_update_options(ctx.xso); | |
18ca1c8f | 761 | } |
f0d9757c | 762 | |
db2f98c4 HL |
763 | ret = ctx.is_stream ? ctx.xso->ssl_options : ctx.qc->default_ssl_options; |
764 | ||
f0d9757c | 765 | quic_unlock(ctx.qc); |
db2f98c4 | 766 | return ret; |
f0d9757c HL |
767 | } |
768 | ||
769 | uint64_t ossl_quic_set_options(SSL *ssl, uint64_t options) | |
770 | { | |
d6e7ebba | 771 | return quic_mask_or_options(ssl, 0, options); |
f0d9757c HL |
772 | } |
773 | ||
774 | /* SSL_clear_options */ | |
775 | uint64_t ossl_quic_clear_options(SSL *ssl, uint64_t options) | |
776 | { | |
777 | return quic_mask_or_options(ssl, options, 0); | |
778 | } | |
779 | ||
780 | /* SSL_get_options */ | |
781 | uint64_t ossl_quic_get_options(const SSL *ssl) | |
782 | { | |
783 | return quic_mask_or_options((SSL *)ssl, 0, 0); | |
784 | } | |
785 | ||
22d53c88 HL |
786 | /* |
787 | * QUIC Front-End I/O API: Network BIO Configuration | |
788 | * ================================================= | |
789 | * | |
790 | * Handling the different BIOs is difficult: | |
791 | * | |
792 | * - It is more or less a requirement that we use non-blocking network I/O; | |
793 | * we need to be able to have timeouts on recv() calls, and make best effort | |
794 | * (non blocking) send() and recv() calls. | |
795 | * | |
796 | * The only sensible way to do this is to configure the socket into | |
797 | * non-blocking mode. We could try to do select() before calling send() or | |
798 | * recv() to get a guarantee that the call will not block, but this will | |
799 | * probably run into issues with buggy OSes which generate spurious socket | |
800 | * readiness events. In any case, relying on this to work reliably does not | |
801 | * seem sane. | |
802 | * | |
803 | * Timeouts could be handled via setsockopt() socket timeout options, but | |
804 | * this depends on OS support and adds another syscall to every network I/O | |
805 | * operation. It also has obvious thread safety concerns if we want to move | |
806 | * to concurrent use of a single socket at some later date. | |
807 | * | |
808 | * Some OSes support a MSG_DONTWAIT flag which allows a single I/O option to | |
809 | * be made non-blocking. However some OSes (e.g. Windows) do not support | |
810 | * this, so we cannot rely on this. | |
811 | * | |
812 | * As such, we need to configure any FD in non-blocking mode. This may | |
813 | * confound users who pass a blocking socket to libssl. However, in practice | |
814 | * it would be extremely strange for a user of QUIC to pass an FD to us, | |
815 | * then also try and send receive traffic on the same socket(!). Thus the | |
816 | * impact of this should be limited, and can be documented. | |
817 | * | |
818 | * - We support both blocking and non-blocking operation in terms of the API | |
819 | * presented to the user. One prospect is to set the blocking mode based on | |
820 | * whether the socket passed to us was already in blocking mode. However, | |
821 | * Windows has no API for determining if a socket is in blocking mode (!), | |
822 | * therefore this cannot be done portably. Currently therefore we expose an | |
823 | * explicit API call to set this, and default to blocking mode. | |
824 | * | |
825 | * - We need to determine our initial destination UDP address. The "natural" | |
826 | * way for a user to do this is to set the peer variable on a BIO_dgram. | |
827 | * However, this has problems because BIO_dgram's peer variable is used for | |
828 | * both transmission and reception. This means it can be constantly being | |
829 | * changed to a malicious value (e.g. if some random unrelated entity on the | |
830 | * network starts sending traffic to us) on every read call. This is not a | |
831 | * direct issue because we use the 'stateless' BIO_sendmmsg and BIO_recvmmsg | |
832 | * calls only, which do not use this variable. However, we do need to let | |
833 | * the user specify the peer in a 'normal' manner. The compromise here is | |
834 | * that we grab the current peer value set at the time the write BIO is set | |
835 | * and do not read the value again. | |
836 | * | |
837 | * - We also need to support memory BIOs (e.g. BIO_dgram_pair) or custom BIOs. | |
838 | * Currently we do this by only supporting non-blocking mode. | |
839 | * | |
840 | */ | |
841 | ||
842 | /* | |
843 | * Determines what initial destination UDP address we should use, if possible. | |
844 | * If this fails the client must set the destination address manually, or use a | |
845 | * BIO which does not need a destination address. | |
846 | */ | |
847 | static int csm_analyse_init_peer_addr(BIO *net_wbio, BIO_ADDR *peer) | |
848 | { | |
62665fc2 | 849 | if (BIO_dgram_detect_peer_addr(net_wbio, peer) <= 0) |
22d53c88 HL |
850 | return 0; |
851 | ||
852 | return 1; | |
853 | } | |
854 | ||
51e671e2 HL |
855 | static int qc_can_support_blocking_cached(QUIC_CONNECTION *qc) |
856 | { | |
857 | QUIC_REACTOR *rtor = ossl_quic_channel_get_reactor(qc->ch); | |
858 | ||
859 | return ossl_quic_reactor_can_poll_r(rtor) | |
860 | && ossl_quic_reactor_can_poll_w(rtor); | |
861 | } | |
862 | ||
863 | static void qc_update_can_support_blocking(QUIC_CONNECTION *qc) | |
864 | { | |
632b0c7e | 865 | ossl_quic_port_update_poll_descriptors(qc->port); /* best effort */ |
51e671e2 HL |
866 | } |
867 | ||
868 | static void qc_update_blocking_mode(QUIC_CONNECTION *qc) | |
869 | { | |
870 | qc->blocking = qc->desires_blocking && qc_can_support_blocking_cached(qc); | |
871 | } | |
872 | ||
072328dd | 873 | void ossl_quic_conn_set0_net_rbio(SSL *s, BIO *net_rbio) |
22d53c88 | 874 | { |
072328dd HL |
875 | QCTX ctx; |
876 | ||
877 | if (!expect_quic(s, &ctx)) | |
878 | return; | |
879 | ||
880 | if (ctx.qc->net_rbio == net_rbio) | |
38b051a1 | 881 | return; |
38b051a1 | 882 | |
073e5bc7 | 883 | if (!ossl_quic_port_set_net_rbio(ctx.qc->port, net_rbio)) |
22d53c88 HL |
884 | return; |
885 | ||
18fd0ea0 | 886 | BIO_free_all(ctx.qc->net_rbio); |
072328dd | 887 | ctx.qc->net_rbio = net_rbio; |
22d53c88 | 888 | |
51e671e2 HL |
889 | if (net_rbio != NULL) |
890 | BIO_set_nbio(net_rbio, 1); /* best effort autoconfig */ | |
891 | ||
22d53c88 | 892 | /* |
51e671e2 HL |
893 | * Determine if the current pair of read/write BIOs now set allows blocking |
894 | * mode to be supported. | |
22d53c88 | 895 | */ |
51e671e2 HL |
896 | qc_update_can_support_blocking(ctx.qc); |
897 | qc_update_blocking_mode(ctx.qc); | |
99e1cc7b TM |
898 | } |
899 | ||
072328dd | 900 | void ossl_quic_conn_set0_net_wbio(SSL *s, BIO *net_wbio) |
38b051a1 | 901 | { |
072328dd HL |
902 | QCTX ctx; |
903 | ||
904 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
905 | return; |
906 | ||
072328dd | 907 | if (ctx.qc->net_wbio == net_wbio) |
22d53c88 HL |
908 | return; |
909 | ||
073e5bc7 | 910 | if (!ossl_quic_port_set_net_wbio(ctx.qc->port, net_wbio)) |
072328dd HL |
911 | return; |
912 | ||
18fd0ea0 | 913 | BIO_free_all(ctx.qc->net_wbio); |
072328dd | 914 | ctx.qc->net_wbio = net_wbio; |
22d53c88 | 915 | |
51e671e2 | 916 | if (net_wbio != NULL) |
0818c170 | 917 | BIO_set_nbio(net_wbio, 1); /* best effort autoconfig */ |
51e671e2 HL |
918 | |
919 | /* | |
920 | * Determine if the current pair of read/write BIOs now set allows blocking | |
921 | * mode to be supported. | |
922 | */ | |
923 | qc_update_can_support_blocking(ctx.qc); | |
924 | qc_update_blocking_mode(ctx.qc); | |
22d53c88 | 925 | } |
38b051a1 | 926 | |
072328dd | 927 | BIO *ossl_quic_conn_get_net_rbio(const SSL *s) |
22d53c88 | 928 | { |
072328dd HL |
929 | QCTX ctx; |
930 | ||
931 | if (!expect_quic(s, &ctx)) | |
932 | return NULL; | |
933 | ||
934 | return ctx.qc->net_rbio; | |
38b051a1 TM |
935 | } |
936 | ||
072328dd | 937 | BIO *ossl_quic_conn_get_net_wbio(const SSL *s) |
22d53c88 | 938 | { |
072328dd HL |
939 | QCTX ctx; |
940 | ||
941 | if (!expect_quic(s, &ctx)) | |
942 | return NULL; | |
943 | ||
944 | return ctx.qc->net_wbio; | |
22d53c88 HL |
945 | } |
946 | ||
072328dd | 947 | int ossl_quic_conn_get_blocking_mode(const SSL *s) |
99e1cc7b | 948 | { |
072328dd HL |
949 | QCTX ctx; |
950 | ||
951 | if (!expect_quic(s, &ctx)) | |
952 | return 0; | |
953 | ||
cb5c208b | 954 | if (ctx.is_stream) |
51e671e2 | 955 | return xso_blocking_mode(ctx.xso); |
cb5c208b | 956 | |
51e671e2 | 957 | return qc_blocking_mode(ctx.qc); |
22d53c88 HL |
958 | } |
959 | ||
51e671e2 | 960 | QUIC_TAKES_LOCK |
072328dd | 961 | int ossl_quic_conn_set_blocking_mode(SSL *s, int blocking) |
22d53c88 | 962 | { |
51e671e2 | 963 | int ret = 0; |
072328dd HL |
964 | QCTX ctx; |
965 | ||
966 | if (!expect_quic(s, &ctx)) | |
967 | return 0; | |
968 | ||
51e671e2 | 969 | quic_lock(ctx.qc); |
22d53c88 | 970 | |
51e671e2 HL |
971 | /* Sanity check - can we support the request given the current network BIO? */ |
972 | if (blocking) { | |
cb5c208b | 973 | /* |
51e671e2 HL |
974 | * If called directly on a QCSO, update our information on network BIO |
975 | * capabilities. | |
cb5c208b | 976 | */ |
51e671e2 HL |
977 | if (!ctx.is_stream) |
978 | qc_update_can_support_blocking(ctx.qc); | |
979 | ||
980 | /* Cannot enable blocking mode if we do not have pollable FDs. */ | |
981 | if (!qc_can_support_blocking_cached(ctx.qc)) { | |
982 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_UNSUPPORTED, NULL); | |
983 | goto out; | |
984 | } | |
cb5c208b HL |
985 | } |
986 | ||
51e671e2 HL |
987 | if (!ctx.is_stream) |
988 | /* | |
989 | * If called directly on a QCSO, update default and connection-level | |
990 | * blocking modes. | |
991 | */ | |
992 | ctx.qc->desires_blocking = (blocking != 0); | |
993 | ||
994 | if (ctx.xso != NULL) { | |
cb5c208b | 995 | /* |
51e671e2 | 996 | * If called on a QSSO or a QCSO with a default XSO, update the blocking |
cb5c208b HL |
997 | * mode. |
998 | */ | |
51e671e2 HL |
999 | ctx.xso->desires_blocking = (blocking != 0); |
1000 | ctx.xso->desires_blocking_set = 1; | |
1001 | } | |
cb5c208b | 1002 | |
51e671e2 HL |
1003 | ret = 1; |
1004 | out: | |
1005 | qc_update_blocking_mode(ctx.qc); | |
1006 | quic_unlock(ctx.qc); | |
1007 | return ret; | |
99e1cc7b TM |
1008 | } |
1009 | ||
072328dd | 1010 | int ossl_quic_conn_set_initial_peer_addr(SSL *s, |
22d53c88 | 1011 | const BIO_ADDR *peer_addr) |
99e1cc7b | 1012 | { |
072328dd HL |
1013 | QCTX ctx; |
1014 | ||
1015 | if (!expect_quic(s, &ctx)) | |
1016 | return 0; | |
1017 | ||
1018 | if (ctx.qc->started) | |
a954f761 | 1019 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 1020 | NULL); |
38b051a1 | 1021 | |
22d53c88 | 1022 | if (peer_addr == NULL) { |
072328dd | 1023 | BIO_ADDR_clear(&ctx.qc->init_peer_addr); |
22d53c88 HL |
1024 | return 1; |
1025 | } | |
38b051a1 | 1026 | |
072328dd | 1027 | ctx.qc->init_peer_addr = *peer_addr; |
99e1cc7b TM |
1028 | return 1; |
1029 | } | |
1030 | ||
22d53c88 HL |
1031 | /* |
1032 | * QUIC Front-End I/O API: Asynchronous I/O Management | |
1033 | * =================================================== | |
1034 | * | |
6084e04b HL |
1035 | * (BIO/)SSL_handle_events => ossl_quic_handle_events |
1036 | * (BIO/)SSL_get_event_timeout => ossl_quic_get_event_timeout | |
22d53c88 HL |
1037 | * (BIO/)SSL_get_poll_fd => ossl_quic_get_poll_fd |
1038 | * | |
1039 | */ | |
1040 | ||
1041 | /* Returns 1 if the connection is being used in blocking mode. */ | |
cb5c208b | 1042 | static int qc_blocking_mode(const QUIC_CONNECTION *qc) |
99e1cc7b | 1043 | { |
22d53c88 HL |
1044 | return qc->blocking; |
1045 | } | |
38b051a1 | 1046 | |
cb5c208b HL |
1047 | static int xso_blocking_mode(const QUIC_XSO *xso) |
1048 | { | |
51e671e2 HL |
1049 | if (xso->desires_blocking_set) |
1050 | return xso->desires_blocking && qc_can_support_blocking_cached(xso->conn); | |
1051 | else | |
1052 | /* Only ever set if we can support blocking. */ | |
1053 | return xso->conn->blocking; | |
cb5c208b HL |
1054 | } |
1055 | ||
b626a0f1 | 1056 | /* SSL_handle_events; performs QUIC I/O and timeout processing. */ |
a8489257 | 1057 | QUIC_TAKES_LOCK |
6084e04b | 1058 | int ossl_quic_handle_events(SSL *s) |
22d53c88 | 1059 | { |
072328dd HL |
1060 | QCTX ctx; |
1061 | ||
1062 | if (!expect_quic(s, &ctx)) | |
1063 | return 0; | |
1064 | ||
1065 | quic_lock(ctx.qc); | |
072328dd HL |
1066 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
1067 | quic_unlock(ctx.qc); | |
99e1cc7b TM |
1068 | return 1; |
1069 | } | |
1070 | ||
22d53c88 | 1071 | /* |
6084e04b | 1072 | * SSL_get_event_timeout. Get the time in milliseconds until the SSL object |
b626a0f1 HL |
1073 | * should next have events handled by the application by calling |
1074 | * SSL_handle_events(). tv is set to 0 if the object should have events handled | |
1075 | * immediately. If no timeout is currently active, *is_infinite is set to 1 and | |
1076 | * the value of *tv is undefined. | |
22d53c88 | 1077 | */ |
a8489257 | 1078 | QUIC_TAKES_LOCK |
7ea49713 | 1079 | int ossl_quic_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite) |
99e1cc7b | 1080 | { |
072328dd | 1081 | QCTX ctx; |
a1660c94 | 1082 | OSSL_TIME deadline = ossl_time_infinite(); |
e44795bd | 1083 | |
072328dd HL |
1084 | if (!expect_quic(s, &ctx)) |
1085 | return 0; | |
a8489257 | 1086 | |
072328dd HL |
1087 | quic_lock(ctx.qc); |
1088 | ||
23c04709 HL |
1089 | deadline |
1090 | = ossl_quic_reactor_get_tick_deadline(ossl_quic_channel_get_reactor(ctx.qc->ch)); | |
22d53c88 HL |
1091 | |
1092 | if (ossl_time_is_infinite(deadline)) { | |
7ea49713 HL |
1093 | *is_infinite = 1; |
1094 | ||
1095 | /* | |
1096 | * Robustness against faulty applications that don't check *is_infinite; | |
1097 | * harmless long timeout. | |
1098 | */ | |
1099 | tv->tv_sec = 1000000; | |
22d53c88 | 1100 | tv->tv_usec = 0; |
7ea49713 | 1101 | |
072328dd | 1102 | quic_unlock(ctx.qc); |
22d53c88 HL |
1103 | return 1; |
1104 | } | |
1105 | ||
e3e9794a | 1106 | *tv = ossl_time_to_timeval(ossl_time_subtract(deadline, get_time(ctx.qc))); |
7ea49713 | 1107 | *is_infinite = 0; |
072328dd | 1108 | quic_unlock(ctx.qc); |
22d53c88 HL |
1109 | return 1; |
1110 | } | |
1111 | ||
1112 | /* SSL_get_rpoll_descriptor */ | |
072328dd | 1113 | int ossl_quic_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
22d53c88 | 1114 | { |
072328dd HL |
1115 | QCTX ctx; |
1116 | ||
1117 | if (!expect_quic(s, &ctx)) | |
e44795bd TM |
1118 | return 0; |
1119 | ||
8ee3ee10 | 1120 | if (desc == NULL || ctx.qc->net_rbio == NULL) |
a954f761 | 1121 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 | 1122 | NULL); |
072328dd HL |
1123 | |
1124 | return BIO_get_rpoll_descriptor(ctx.qc->net_rbio, desc); | |
99e1cc7b TM |
1125 | } |
1126 | ||
22d53c88 | 1127 | /* SSL_get_wpoll_descriptor */ |
072328dd | 1128 | int ossl_quic_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
99e1cc7b | 1129 | { |
072328dd HL |
1130 | QCTX ctx; |
1131 | ||
1132 | if (!expect_quic(s, &ctx)) | |
1133 | return 0; | |
1134 | ||
8ee3ee10 | 1135 | if (desc == NULL || ctx.qc->net_wbio == NULL) |
a954f761 | 1136 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 | 1137 | NULL); |
22d53c88 | 1138 | |
072328dd | 1139 | return BIO_get_wpoll_descriptor(ctx.qc->net_wbio, desc); |
99e1cc7b TM |
1140 | } |
1141 | ||
b639475a | 1142 | /* SSL_net_read_desired */ |
a8489257 | 1143 | QUIC_TAKES_LOCK |
072328dd | 1144 | int ossl_quic_get_net_read_desired(SSL *s) |
99e1cc7b | 1145 | { |
072328dd | 1146 | QCTX ctx; |
a8489257 HL |
1147 | int ret; |
1148 | ||
072328dd HL |
1149 | if (!expect_quic(s, &ctx)) |
1150 | return 0; | |
1151 | ||
1152 | quic_lock(ctx.qc); | |
072328dd HL |
1153 | ret = ossl_quic_reactor_net_read_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
1154 | quic_unlock(ctx.qc); | |
a8489257 | 1155 | return ret; |
22d53c88 | 1156 | } |
e44795bd | 1157 | |
b639475a | 1158 | /* SSL_net_write_desired */ |
a8489257 | 1159 | QUIC_TAKES_LOCK |
072328dd | 1160 | int ossl_quic_get_net_write_desired(SSL *s) |
22d53c88 | 1161 | { |
a8489257 | 1162 | int ret; |
072328dd HL |
1163 | QCTX ctx; |
1164 | ||
1165 | if (!expect_quic(s, &ctx)) | |
1166 | return 0; | |
a8489257 | 1167 | |
072328dd | 1168 | quic_lock(ctx.qc); |
072328dd HL |
1169 | ret = ossl_quic_reactor_net_write_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
1170 | quic_unlock(ctx.qc); | |
a8489257 | 1171 | return ret; |
99e1cc7b TM |
1172 | } |
1173 | ||
22d53c88 HL |
1174 | /* |
1175 | * QUIC Front-End I/O API: Connection Lifecycle Operations | |
1176 | * ======================================================= | |
1177 | * | |
1178 | * SSL_do_handshake => ossl_quic_do_handshake | |
1179 | * SSL_set_connect_state => ossl_quic_set_connect_state | |
1180 | * SSL_set_accept_state => ossl_quic_set_accept_state | |
1181 | * SSL_shutdown => ossl_quic_shutdown | |
1182 | * SSL_ctrl => ossl_quic_ctrl | |
1183 | * (BIO/)SSL_connect => ossl_quic_connect | |
1184 | * (BIO/)SSL_accept => ossl_quic_accept | |
1185 | * | |
1186 | */ | |
1187 | ||
8a2e9aba HL |
1188 | QUIC_NEEDS_LOCK |
1189 | static void qc_shutdown_flush_init(QUIC_CONNECTION *qc) | |
1190 | { | |
1191 | QUIC_STREAM_MAP *qsm; | |
1192 | ||
1193 | if (qc->shutting_down) | |
1194 | return; | |
1195 | ||
1196 | qsm = ossl_quic_channel_get_qsm(qc->ch); | |
1197 | ||
1198 | ossl_quic_stream_map_begin_shutdown_flush(qsm); | |
1199 | qc->shutting_down = 1; | |
1200 | } | |
1201 | ||
1202 | /* Returns 1 if all shutdown-flush streams have been done with. */ | |
1203 | QUIC_NEEDS_LOCK | |
1204 | static int qc_shutdown_flush_finished(QUIC_CONNECTION *qc) | |
1205 | { | |
1206 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(qc->ch); | |
1207 | ||
1208 | return qc->shutting_down | |
1209 | && ossl_quic_stream_map_is_shutdown_flush_finished(qsm); | |
1210 | } | |
1211 | ||
22d53c88 | 1212 | /* SSL_shutdown */ |
e8043229 | 1213 | static int quic_shutdown_wait(void *arg) |
99e1cc7b | 1214 | { |
e8043229 | 1215 | QUIC_CONNECTION *qc = arg; |
22d53c88 | 1216 | |
23c04709 | 1217 | return ossl_quic_channel_is_terminated(qc->ch); |
e8043229 | 1218 | } |
22d53c88 | 1219 | |
8a2e9aba HL |
1220 | /* Returns 1 if shutdown flush process has finished or is inapplicable. */ |
1221 | static int quic_shutdown_flush_wait(void *arg) | |
1222 | { | |
1223 | QUIC_CONNECTION *qc = arg; | |
1224 | ||
1225 | return ossl_quic_channel_is_term_any(qc->ch) | |
1226 | || qc_shutdown_flush_finished(qc); | |
1227 | } | |
1228 | ||
25a0c4b9 HL |
1229 | static int quic_shutdown_peer_wait(void *arg) |
1230 | { | |
1231 | QUIC_CONNECTION *qc = arg; | |
1232 | return ossl_quic_channel_is_term_any(qc->ch); | |
1233 | } | |
1234 | ||
a8489257 | 1235 | QUIC_TAKES_LOCK |
072328dd | 1236 | int ossl_quic_conn_shutdown(SSL *s, uint64_t flags, |
e8043229 HL |
1237 | const SSL_SHUTDOWN_EX_ARGS *args, |
1238 | size_t args_len) | |
1239 | { | |
a8489257 | 1240 | int ret; |
072328dd | 1241 | QCTX ctx; |
8a2e9aba | 1242 | int stream_flush = ((flags & SSL_SHUTDOWN_FLAG_NO_STREAM_FLUSH) == 0); |
25a0c4b9 HL |
1243 | int no_block = ((flags & SSL_SHUTDOWN_FLAG_NO_BLOCK) != 0); |
1244 | int wait_peer = ((flags & SSL_SHUTDOWN_FLAG_WAIT_PEER) != 0); | |
a8489257 | 1245 | |
072328dd | 1246 | if (!expect_quic(s, &ctx)) |
63fac76c | 1247 | return -1; |
072328dd | 1248 | |
8ee3ee10 | 1249 | if (ctx.is_stream) { |
a954f761 | 1250 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_CONN_USE_ONLY, NULL); |
cb5c208b | 1251 | return -1; |
8ee3ee10 | 1252 | } |
cb5c208b | 1253 | |
072328dd | 1254 | quic_lock(ctx.qc); |
a8489257 | 1255 | |
63fac76c HL |
1256 | if (ossl_quic_channel_is_terminated(ctx.qc->ch)) { |
1257 | quic_unlock(ctx.qc); | |
1258 | return 1; | |
1259 | } | |
1260 | ||
8a2e9aba | 1261 | /* Phase 1: Stream Flushing */ |
25a0c4b9 | 1262 | if (!wait_peer && stream_flush) { |
8a2e9aba HL |
1263 | qc_shutdown_flush_init(ctx.qc); |
1264 | ||
1265 | if (!qc_shutdown_flush_finished(ctx.qc)) { | |
25a0c4b9 | 1266 | if (!no_block && qc_blocking_mode(ctx.qc)) { |
23406e30 HL |
1267 | ret = block_until_pred(ctx.qc, quic_shutdown_flush_wait, ctx.qc, 0); |
1268 | if (ret < 1) { | |
1269 | ret = 0; | |
1270 | goto err; | |
1271 | } | |
1272 | } else { | |
8a2e9aba | 1273 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
23406e30 | 1274 | } |
8a2e9aba HL |
1275 | } |
1276 | ||
1277 | if (!qc_shutdown_flush_finished(ctx.qc)) { | |
1278 | quic_unlock(ctx.qc); | |
1279 | return 0; /* ongoing */ | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | /* Phase 2: Connection Closure */ | |
25a0c4b9 HL |
1284 | if (wait_peer && !ossl_quic_channel_is_term_any(ctx.qc->ch)) { |
1285 | if (!no_block && qc_blocking_mode(ctx.qc)) { | |
1286 | ret = block_until_pred(ctx.qc, quic_shutdown_peer_wait, ctx.qc, 0); | |
1287 | if (ret < 1) { | |
1288 | ret = 0; | |
1289 | goto err; | |
1290 | } | |
1291 | } else { | |
1292 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); | |
1293 | } | |
1294 | ||
1295 | if (!ossl_quic_channel_is_term_any(ctx.qc->ch)) { | |
1296 | ret = 0; /* peer hasn't closed yet - still not done */ | |
1297 | goto err; | |
1298 | } | |
1299 | ||
1300 | /* | |
1301 | * We are at least terminating - go through the normal process of | |
1302 | * waiting until we are in the TERMINATED state. | |
1303 | */ | |
1304 | } | |
1305 | ||
1306 | /* Block mutation ops regardless of if we did stream flush. */ | |
1307 | ctx.qc->shutting_down = 1; | |
1308 | ||
1309 | /* | |
1310 | * This call is a no-op if we are already terminating, so it doesn't | |
1311 | * affect the wait_peer case. | |
1312 | */ | |
072328dd | 1313 | ossl_quic_channel_local_close(ctx.qc->ch, |
40c8c756 HL |
1314 | args != NULL ? args->quic_error_code : 0, |
1315 | args != NULL ? args->quic_reason : NULL); | |
e8043229 | 1316 | |
f219abef MC |
1317 | SSL_set_shutdown(ctx.qc->tls, SSL_SENT_SHUTDOWN); |
1318 | ||
072328dd HL |
1319 | if (ossl_quic_channel_is_terminated(ctx.qc->ch)) { |
1320 | quic_unlock(ctx.qc); | |
e8043229 | 1321 | return 1; |
a8489257 | 1322 | } |
e8043229 | 1323 | |
8a2e9aba | 1324 | /* Phase 3: Terminating Wait Time */ |
25a0c4b9 HL |
1325 | if (!no_block && qc_blocking_mode(ctx.qc) |
1326 | && (flags & SSL_SHUTDOWN_FLAG_RAPID) == 0) { | |
23406e30 HL |
1327 | ret = block_until_pred(ctx.qc, quic_shutdown_wait, ctx.qc, 0); |
1328 | if (ret < 1) { | |
1329 | ret = 0; | |
1330 | goto err; | |
1331 | } | |
1332 | } else { | |
072328dd | 1333 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
23406e30 | 1334 | } |
e8043229 | 1335 | |
072328dd | 1336 | ret = ossl_quic_channel_is_terminated(ctx.qc->ch); |
23406e30 | 1337 | err: |
072328dd | 1338 | quic_unlock(ctx.qc); |
a8489257 | 1339 | return ret; |
99e1cc7b TM |
1340 | } |
1341 | ||
22d53c88 | 1342 | /* SSL_ctrl */ |
e44795bd | 1343 | long ossl_quic_ctrl(SSL *s, int cmd, long larg, void *parg) |
99e1cc7b | 1344 | { |
072328dd | 1345 | QCTX ctx; |
38b051a1 | 1346 | |
072328dd | 1347 | if (!expect_quic(s, &ctx)) |
38b051a1 TM |
1348 | return 0; |
1349 | ||
22d53c88 HL |
1350 | switch (cmd) { |
1351 | case SSL_CTRL_MODE: | |
cb5c208b HL |
1352 | /* If called on a QCSO, update the default mode. */ |
1353 | if (!ctx.is_stream) | |
1354 | ctx.qc->default_ssl_mode |= (uint32_t)larg; | |
1355 | ||
1356 | /* | |
1357 | * If we were called on a QSSO or have a default stream, we also update | |
1358 | * that. | |
1359 | */ | |
1360 | if (ctx.xso != NULL) { | |
1361 | /* Cannot enable EPW while AON write in progress. */ | |
1362 | if (ctx.xso->aon_write_in_progress) | |
1363 | larg &= ~SSL_MODE_ENABLE_PARTIAL_WRITE; | |
1364 | ||
1365 | ctx.xso->ssl_mode |= (uint32_t)larg; | |
1366 | return ctx.xso->ssl_mode; | |
1367 | } | |
dfc227bd | 1368 | |
cb5c208b | 1369 | return ctx.qc->default_ssl_mode; |
22d53c88 | 1370 | case SSL_CTRL_CLEAR_MODE: |
cb5c208b HL |
1371 | if (!ctx.is_stream) |
1372 | ctx.qc->default_ssl_mode &= ~(uint32_t)larg; | |
1373 | ||
1374 | if (ctx.xso != NULL) { | |
1375 | ctx.xso->ssl_mode &= ~(uint32_t)larg; | |
1376 | return ctx.xso->ssl_mode; | |
1377 | } | |
1378 | ||
1379 | return ctx.qc->default_ssl_mode; | |
63dfde87 MC |
1380 | |
1381 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
5cf99b40 | 1382 | ossl_quic_channel_set_msg_callback_arg(ctx.qc->ch, parg); |
63dfde87 MC |
1383 | /* This ctrl also needs to be passed to the internal SSL object */ |
1384 | return SSL_ctrl(ctx.qc->tls, cmd, larg, parg); | |
1385 | ||
2f90ea3d HL |
1386 | case DTLS_CTRL_GET_TIMEOUT: /* DTLSv1_get_timeout */ |
1387 | { | |
1388 | int is_infinite; | |
1389 | ||
1390 | if (!ossl_quic_get_event_timeout(s, parg, &is_infinite)) | |
1391 | return 0; | |
1392 | ||
1393 | return !is_infinite; | |
1394 | } | |
1395 | case DTLS_CTRL_HANDLE_TIMEOUT: /* DTLSv1_handle_timeout */ | |
1396 | /* For legacy compatibility with DTLS calls. */ | |
1397 | return ossl_quic_handle_events(s) == 1 ? 1 : -1; | |
c5b882a8 HL |
1398 | |
1399 | /* Mask ctrls we shouldn't support for QUIC. */ | |
1400 | case SSL_CTRL_GET_READ_AHEAD: | |
1401 | case SSL_CTRL_SET_READ_AHEAD: | |
1402 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1403 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
1404 | case SSL_CTRL_SET_MAX_PIPELINES: | |
1405 | return 0; | |
1406 | ||
22d53c88 | 1407 | default: |
c5b882a8 HL |
1408 | /* |
1409 | * Probably a TLS related ctrl. Send back to the frontend SSL_ctrl | |
1410 | * implementation. Either SSL_ctrl will handle it itself by direct | |
1411 | * access into handshake layer state, or failing that, it will be passed | |
1412 | * to the handshake layer via the SSL_METHOD vtable. If the ctrl is not | |
1413 | * supported by anything, the handshake layer's ctrl method will finally | |
1414 | * return 0. | |
1415 | */ | |
1416 | return ossl_ctrl_internal(&ctx.qc->ssl, cmd, larg, parg, /*no_quic=*/1); | |
08e49012 | 1417 | } |
22d53c88 HL |
1418 | } |
1419 | ||
1420 | /* SSL_set_connect_state */ | |
072328dd | 1421 | void ossl_quic_set_connect_state(SSL *s) |
22d53c88 | 1422 | { |
072328dd HL |
1423 | QCTX ctx; |
1424 | ||
1425 | if (!expect_quic(s, &ctx)) | |
1426 | return; | |
1427 | ||
22d53c88 | 1428 | /* Cannot be changed after handshake started */ |
cb5c208b | 1429 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1430 | return; |
1431 | ||
dfb9ae14 | 1432 | ctx.qc->as_server_state = 0; |
22d53c88 HL |
1433 | } |
1434 | ||
1435 | /* SSL_set_accept_state */ | |
072328dd | 1436 | void ossl_quic_set_accept_state(SSL *s) |
22d53c88 | 1437 | { |
072328dd HL |
1438 | QCTX ctx; |
1439 | ||
1440 | if (!expect_quic(s, &ctx)) | |
1441 | return; | |
1442 | ||
22d53c88 | 1443 | /* Cannot be changed after handshake started */ |
cb5c208b | 1444 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1445 | return; |
1446 | ||
dfb9ae14 | 1447 | ctx.qc->as_server_state = 1; |
22d53c88 HL |
1448 | } |
1449 | ||
1450 | /* SSL_do_handshake */ | |
1451 | struct quic_handshake_wait_args { | |
1452 | QUIC_CONNECTION *qc; | |
1453 | }; | |
1454 | ||
3a0012cb MC |
1455 | static int tls_wants_non_io_retry(QUIC_CONNECTION *qc) |
1456 | { | |
1457 | int want = SSL_want(qc->tls); | |
1458 | ||
1459 | if (want == SSL_X509_LOOKUP | |
1460 | || want == SSL_CLIENT_HELLO_CB | |
1461 | || want == SSL_RETRY_VERIFY) | |
1462 | return 1; | |
1463 | ||
1464 | return 0; | |
1465 | } | |
1466 | ||
22d53c88 HL |
1467 | static int quic_handshake_wait(void *arg) |
1468 | { | |
1469 | struct quic_handshake_wait_args *args = arg; | |
1470 | ||
6d6b3a03 | 1471 | if (!quic_mutation_allowed(args->qc, /*req_active=*/1)) |
22d53c88 HL |
1472 | return -1; |
1473 | ||
1474 | if (ossl_quic_channel_is_handshake_complete(args->qc->ch)) | |
1475 | return 1; | |
1476 | ||
3a0012cb MC |
1477 | if (tls_wants_non_io_retry(args->qc)) |
1478 | return 1; | |
1479 | ||
99e1cc7b TM |
1480 | return 0; |
1481 | } | |
1482 | ||
22d53c88 | 1483 | static int configure_channel(QUIC_CONNECTION *qc) |
99e1cc7b | 1484 | { |
22d53c88 | 1485 | assert(qc->ch != NULL); |
08e49012 | 1486 | |
073e5bc7 HL |
1487 | if (!ossl_quic_port_set_net_rbio(qc->port, qc->net_rbio) |
1488 | || !ossl_quic_port_set_net_wbio(qc->port, qc->net_wbio) | |
22d53c88 HL |
1489 | || !ossl_quic_channel_set_peer_addr(qc->ch, &qc->init_peer_addr)) |
1490 | return 0; | |
1491 | ||
1492 | return 1; | |
1493 | } | |
1494 | ||
4847599b | 1495 | QUIC_NEEDS_LOCK |
23c04709 | 1496 | static int create_channel(QUIC_CONNECTION *qc) |
22d53c88 | 1497 | { |
22739cc3 | 1498 | QUIC_ENGINE_ARGS engine_args = {0}; |
f7671012 | 1499 | QUIC_PORT_ARGS port_args = {0}; |
22d53c88 | 1500 | |
22739cc3 HL |
1501 | engine_args.libctx = qc->ssl.ctx->libctx; |
1502 | engine_args.propq = qc->ssl.ctx->propq; | |
1503 | engine_args.mutex = qc->mutex; | |
1504 | engine_args.now_cb = get_time_cb; | |
1505 | engine_args.now_cb_arg = qc; | |
1506 | qc->engine = ossl_quic_engine_new(&engine_args); | |
1507 | if (qc->engine == NULL) { | |
1508 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); | |
1509 | return 0; | |
1510 | } | |
22d53c88 | 1511 | |
22739cc3 HL |
1512 | port_args.channel_ctx = qc->ssl.ctx; |
1513 | qc->port = ossl_quic_engine_create_port(qc->engine, &port_args); | |
f7671012 HL |
1514 | if (qc->port == NULL) { |
1515 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); | |
22739cc3 | 1516 | ossl_quic_engine_free(qc->engine); |
f7671012 HL |
1517 | return 0; |
1518 | } | |
1519 | ||
2d80e459 | 1520 | qc->ch = ossl_quic_port_create_outgoing(qc->port, qc->tls); |
8ee3ee10 | 1521 | if (qc->ch == NULL) { |
a954f761 | 1522 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
f7671012 | 1523 | ossl_quic_port_free(qc->port); |
22739cc3 | 1524 | ossl_quic_engine_free(qc->engine); |
22d53c88 | 1525 | return 0; |
8ee3ee10 | 1526 | } |
22d53c88 | 1527 | |
e8043229 HL |
1528 | return 1; |
1529 | } | |
1530 | ||
1531 | /* | |
2e176011 HL |
1532 | * Configures a channel with the information we have accumulated via calls made |
1533 | * to us from the application prior to starting a handshake attempt. | |
e8043229 | 1534 | */ |
4847599b | 1535 | QUIC_NEEDS_LOCK |
2e176011 | 1536 | static int ensure_channel_started(QCTX *ctx) |
e8043229 | 1537 | { |
2e176011 HL |
1538 | QUIC_CONNECTION *qc = ctx->qc; |
1539 | ||
ffce2946 | 1540 | if (!qc->started) { |
2e176011 HL |
1541 | if (!configure_channel(qc)) { |
1542 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, | |
1543 | "failed to configure channel"); | |
1544 | return 0; | |
1545 | } | |
1546 | ||
1547 | if (!ossl_quic_channel_start(qc->ch)) { | |
982dae89 | 1548 | ossl_quic_channel_restore_err_state(qc->ch); |
2e176011 HL |
1549 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, |
1550 | "failed to start channel"); | |
1551 | return 0; | |
1552 | } | |
f2f7c4f1 | 1553 | |
629b408c | 1554 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
ffce2946 | 1555 | if (qc->is_thread_assisted) |
2b8d8153 MC |
1556 | if (!ossl_quic_thread_assist_init_start(&qc->thread_assist, qc->ch, |
1557 | qc->override_now_cb, | |
1558 | qc->override_now_cb_arg)) { | |
2e176011 HL |
1559 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, |
1560 | "failed to start assist thread"); | |
1561 | return 0; | |
1562 | } | |
629b408c | 1563 | #endif |
ffce2946 HL |
1564 | } |
1565 | ||
22d53c88 HL |
1566 | qc->started = 1; |
1567 | return 1; | |
99e1cc7b TM |
1568 | } |
1569 | ||
4a530180 | 1570 | QUIC_NEEDS_LOCK |
faa3a180 | 1571 | static int quic_do_handshake(QCTX *ctx) |
99e1cc7b | 1572 | { |
22d53c88 | 1573 | int ret; |
faa3a180 | 1574 | QUIC_CONNECTION *qc = ctx->qc; |
22d53c88 | 1575 | |
23c04709 | 1576 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
ca41f6b7 | 1577 | /* Handshake already completed. */ |
4a530180 | 1578 | return 1; |
ca41f6b7 | 1579 | |
6d6b3a03 | 1580 | if (!quic_mutation_allowed(qc, /*req_active=*/0)) |
faa3a180 | 1581 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 1582 | |
dfb9ae14 | 1583 | if (qc->as_server != qc->as_server_state) { |
a954f761 | 1584 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
4a530180 | 1585 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1586 | } |
22d53c88 | 1587 | |
ca41f6b7 | 1588 | if (qc->net_rbio == NULL || qc->net_wbio == NULL) { |
22d53c88 | 1589 | /* Need read and write BIOs. */ |
a954f761 | 1590 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BIO_NOT_SET, NULL); |
4a530180 | 1591 | return -1; /* Non-protocol error */ |
62665fc2 HL |
1592 | } |
1593 | ||
1594 | /* | |
1595 | * We need to determine our addressing mode. There are basically two | |
1596 | * ways we can use L4 addresses: | |
1597 | * | |
1598 | * - Addressed mode, in which our BIO_sendmmsg calls have destination | |
1599 | * addresses attached to them which we expect the underlying network BIO | |
1600 | * to handle; | |
1601 | * | |
1602 | * - Unaddressed mode, in which the BIO provided to us on the | |
1603 | * network side neither provides us with L4 addresses nor is capable of | |
1604 | * honouring ones we provide. We don't know where the QUIC traffic we | |
1605 | * send ends up exactly and trust the application to know what it is | |
1606 | * doing. | |
1607 | * | |
1608 | * Addressed mode is preferred because it enables support for connection | |
1609 | * migration, multipath, etc. in the future. Addressed mode is automatically | |
1610 | * enabled if we are using e.g. BIO_s_datagram, with or without | |
1611 | * BIO_s_connect. | |
1612 | * | |
1613 | * If we are passed a BIO_s_dgram_pair (or some custom BIO) we may have to | |
1614 | * use unaddressed mode unless that BIO supports capability flags indicating | |
1615 | * it can provide and honour L4 addresses. | |
1616 | * | |
1617 | * Our strategy for determining address mode is simple: we probe the | |
1618 | * underlying network BIOs for their capabilities. If the network BIOs | |
1619 | * support what we need, we use addressed mode. Otherwise, we use | |
1620 | * unaddressed mode. | |
1621 | * | |
1622 | * If addressed mode is chosen, we require an initial peer address to be | |
1623 | * set. If this is not set, we fail. If unaddressed mode is used, we do not | |
1624 | * require this, as such an address is superfluous, though it can be set if | |
1625 | * desired. | |
1626 | */ | |
1627 | if (!qc->started && !qc->addressing_probe_done) { | |
1628 | long rcaps = BIO_dgram_get_effective_caps(qc->net_rbio); | |
1629 | long wcaps = BIO_dgram_get_effective_caps(qc->net_wbio); | |
62665fc2 | 1630 | |
3760747f HL |
1631 | qc->addressed_mode_r = ((rcaps & BIO_DGRAM_CAP_PROVIDES_SRC_ADDR) != 0); |
1632 | qc->addressed_mode_w = ((wcaps & BIO_DGRAM_CAP_HANDLES_DST_ADDR) != 0); | |
1633 | qc->addressing_probe_done = 1; | |
62665fc2 HL |
1634 | } |
1635 | ||
3760747f | 1636 | if (!qc->started && qc->addressed_mode_w |
62665fc2 HL |
1637 | && BIO_ADDR_family(&qc->init_peer_addr) == AF_UNSPEC) { |
1638 | /* | |
1639 | * We are trying to connect and are using addressed mode, which means we | |
1640 | * need an initial peer address; if we do not have a peer address yet, | |
1641 | * we should try to autodetect one. | |
1642 | * | |
1643 | * We do this as late as possible because some BIOs (e.g. BIO_s_connect) | |
1644 | * may not be able to provide us with a peer address until they have | |
1645 | * finished their own processing. They may not be able to perform this | |
abeb41b4 | 1646 | * processing until an application has finished configuring that BIO |
62665fc2 HL |
1647 | * (e.g. with setter calls), which might happen after SSL_set_bio is |
1648 | * called. | |
1649 | */ | |
1650 | if (!csm_analyse_init_peer_addr(qc->net_wbio, &qc->init_peer_addr)) | |
1651 | /* best effort */ | |
1652 | BIO_ADDR_clear(&qc->init_peer_addr); | |
1653 | else | |
1654 | ossl_quic_channel_set_peer_addr(qc->ch, &qc->init_peer_addr); | |
1655 | } | |
1656 | ||
1657 | if (!qc->started | |
3760747f | 1658 | && qc->addressed_mode_w |
62665fc2 HL |
1659 | && BIO_ADDR_family(&qc->init_peer_addr) == AF_UNSPEC) { |
1660 | /* | |
1661 | * If we still don't have a peer address in addressed mode, we can't do | |
1662 | * anything. | |
1663 | */ | |
1664 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_REMOTE_PEER_ADDRESS_NOT_SET, NULL); | |
1665 | return -1; /* Non-protocol error */ | |
ca41f6b7 | 1666 | } |
22d53c88 HL |
1667 | |
1668 | /* | |
1669 | * Start connection process. Note we may come here multiple times in | |
1670 | * non-blocking mode, which is fine. | |
1671 | */ | |
8d7f0346 | 1672 | if (!ensure_channel_started(ctx)) /* raises on failure */ |
4a530180 | 1673 | return -1; /* Non-protocol error */ |
22d53c88 | 1674 | |
4a530180 | 1675 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
22d53c88 | 1676 | /* The handshake is now done. */ |
4a530180 | 1677 | return 1; |
22d53c88 | 1678 | |
51e671e2 HL |
1679 | if (!qc_blocking_mode(qc)) { |
1680 | /* Try to advance the reactor. */ | |
1681 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1682 | ||
1683 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) | |
1684 | /* The handshake is now done. */ | |
1685 | return 1; | |
1686 | ||
1687 | if (ossl_quic_channel_is_term_any(qc->ch)) { | |
1688 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
1689 | return 0; | |
1690 | } else if (qc->desires_blocking) { | |
1691 | /* | |
1692 | * As a special case when doing a handshake when blocking mode is | |
1693 | * desired yet not available, see if the network BIOs have become | |
1694 | * poll descriptor-enabled. This supports BIOs such as BIO_s_connect | |
1695 | * which do late creation of socket FDs and therefore cannot expose | |
1696 | * a poll descriptor until after a network BIO is set on the QCSO. | |
1697 | */ | |
1698 | assert(!qc->blocking); | |
1699 | qc_update_can_support_blocking(qc); | |
1700 | qc_update_blocking_mode(qc); | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | /* | |
1705 | * We are either in blocking mode or just entered it due to the code above. | |
1706 | */ | |
cb5c208b | 1707 | if (qc_blocking_mode(qc)) { |
22d53c88 HL |
1708 | /* In blocking mode, wait for the handshake to complete. */ |
1709 | struct quic_handshake_wait_args args; | |
1710 | ||
1711 | args.qc = qc; | |
1712 | ||
1713 | ret = block_until_pred(qc, quic_handshake_wait, &args, 0); | |
6d6b3a03 | 1714 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { |
faa3a180 | 1715 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
4a530180 | 1716 | return 0; /* Shutdown before completion */ |
ca41f6b7 | 1717 | } else if (ret <= 0) { |
a954f761 | 1718 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
4a530180 | 1719 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1720 | } |
22d53c88 | 1721 | |
3a0012cb MC |
1722 | if (tls_wants_non_io_retry(qc)) { |
1723 | QUIC_RAISE_NORMAL_ERROR(ctx, SSL_get_error(qc->tls, 0)); | |
1724 | return -1; | |
1725 | } | |
1726 | ||
22d53c88 | 1727 | assert(ossl_quic_channel_is_handshake_complete(qc->ch)); |
4a530180 | 1728 | return 1; |
22d53c88 | 1729 | } |
51e671e2 | 1730 | |
3a0012cb MC |
1731 | if (tls_wants_non_io_retry(qc)) { |
1732 | QUIC_RAISE_NORMAL_ERROR(ctx, SSL_get_error(qc->tls, 0)); | |
1733 | return -1; | |
1734 | } | |
1735 | ||
51e671e2 HL |
1736 | /* |
1737 | * Otherwise, indicate that the handshake isn't done yet. | |
1738 | * We can only get here in non-blocking mode. | |
1739 | */ | |
1740 | QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); | |
1741 | return -1; /* Non-protocol error */ | |
4a530180 | 1742 | } |
a8489257 | 1743 | |
4a530180 | 1744 | QUIC_TAKES_LOCK |
072328dd | 1745 | int ossl_quic_do_handshake(SSL *s) |
4a530180 HL |
1746 | { |
1747 | int ret; | |
072328dd | 1748 | QCTX ctx; |
4a530180 | 1749 | |
072328dd HL |
1750 | if (!expect_quic(s, &ctx)) |
1751 | return 0; | |
1752 | ||
72ca0b88 | 1753 | quic_lock_for_io(&ctx); |
4a530180 | 1754 | |
faa3a180 | 1755 | ret = quic_do_handshake(&ctx); |
072328dd | 1756 | quic_unlock(ctx.qc); |
a8489257 | 1757 | return ret; |
99e1cc7b TM |
1758 | } |
1759 | ||
22d53c88 HL |
1760 | /* SSL_connect */ |
1761 | int ossl_quic_connect(SSL *s) | |
99e1cc7b | 1762 | { |
22d53c88 | 1763 | /* Ensure we are in connect state (no-op if non-idle). */ |
072328dd | 1764 | ossl_quic_set_connect_state(s); |
22d53c88 HL |
1765 | |
1766 | /* Begin or continue the handshake */ | |
072328dd | 1767 | return ossl_quic_do_handshake(s); |
99e1cc7b TM |
1768 | } |
1769 | ||
22d53c88 HL |
1770 | /* SSL_accept */ |
1771 | int ossl_quic_accept(SSL *s) | |
99e1cc7b | 1772 | { |
22d53c88 | 1773 | /* Ensure we are in accept state (no-op if non-idle). */ |
072328dd | 1774 | ossl_quic_set_accept_state(s); |
22d53c88 HL |
1775 | |
1776 | /* Begin or continue the handshake */ | |
072328dd | 1777 | return ossl_quic_do_handshake(s); |
99e1cc7b | 1778 | } |
e44795bd | 1779 | |
cb5c208b HL |
1780 | /* |
1781 | * QUIC Front-End I/O API: Stream Lifecycle Operations | |
1782 | * =================================================== | |
1783 | * | |
1784 | * SSL_stream_new => ossl_quic_conn_stream_new | |
1785 | * | |
1786 | */ | |
21c80696 HL |
1787 | |
1788 | /* | |
1789 | * Try to create the default XSO if it doesn't already exist. Returns 1 if the | |
1790 | * default XSO was created. Returns 0 if it was not (e.g. because it already | |
1791 | * exists). Note that this is NOT an error condition. | |
1792 | */ | |
1793 | QUIC_NEEDS_LOCK | |
faa3a180 | 1794 | static int qc_try_create_default_xso_for_write(QCTX *ctx) |
21c80696 | 1795 | { |
8b7be3aa | 1796 | uint64_t flags = 0; |
faa3a180 | 1797 | QUIC_CONNECTION *qc = ctx->qc; |
21c80696 | 1798 | |
8b7be3aa HL |
1799 | if (qc->default_xso_created |
1800 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
21c80696 HL |
1801 | /* |
1802 | * We only do this once. If the user detaches a previously created | |
1803 | * default XSO we don't auto-create another one. | |
1804 | */ | |
faa3a180 | 1805 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
21c80696 | 1806 | |
8b7be3aa HL |
1807 | /* Create a locally-initiated stream. */ |
1808 | if (qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_AUTO_UNI) | |
1809 | flags |= SSL_STREAM_FLAG_UNI; | |
1810 | ||
faa3a180 | 1811 | qc_set_default_xso(qc, (QUIC_XSO *)quic_conn_stream_new(ctx, flags, |
13ac037d | 1812 | /*needs_lock=*/0), |
995ff282 | 1813 | /*touch=*/0); |
8b7be3aa | 1814 | if (qc->default_xso == NULL) |
faa3a180 | 1815 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1816 | |
995ff282 | 1817 | qc_touch_default_xso(qc); |
8b7be3aa HL |
1818 | return 1; |
1819 | } | |
1820 | ||
1821 | struct quic_wait_for_stream_args { | |
1822 | QUIC_CONNECTION *qc; | |
1823 | QUIC_STREAM *qs; | |
faa3a180 | 1824 | QCTX *ctx; |
8b7be3aa HL |
1825 | uint64_t expect_id; |
1826 | }; | |
1827 | ||
1828 | QUIC_NEEDS_LOCK | |
1829 | static int quic_wait_for_stream(void *arg) | |
1830 | { | |
1831 | struct quic_wait_for_stream_args *args = arg; | |
1832 | ||
6d6b3a03 | 1833 | if (!quic_mutation_allowed(args->qc, /*req_active=*/1)) { |
8b7be3aa | 1834 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 1835 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
8b7be3aa HL |
1836 | return -1; |
1837 | } | |
1838 | ||
1839 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
acc6fde0 HL |
1840 | args->expect_id | QUIC_STREAM_DIR_BIDI); |
1841 | if (args->qs == NULL) | |
1842 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
1843 | args->expect_id | QUIC_STREAM_DIR_UNI); | |
1844 | ||
8b7be3aa HL |
1845 | if (args->qs != NULL) |
1846 | return 1; /* stream now exists */ | |
1847 | ||
1848 | return 0; /* did not get a stream, keep trying */ | |
1849 | } | |
1850 | ||
1851 | QUIC_NEEDS_LOCK | |
faa3a180 | 1852 | static int qc_wait_for_default_xso_for_read(QCTX *ctx) |
8b7be3aa HL |
1853 | { |
1854 | /* Called on a QCSO and we don't currently have a default stream. */ | |
1855 | uint64_t expect_id; | |
faa3a180 | 1856 | QUIC_CONNECTION *qc = ctx->qc; |
8b7be3aa HL |
1857 | QUIC_STREAM *qs; |
1858 | int res; | |
1859 | struct quic_wait_for_stream_args wargs; | |
cd138c33 | 1860 | OSSL_RTT_INFO rtt_info; |
8b7be3aa HL |
1861 | |
1862 | /* | |
1863 | * If default stream functionality is disabled or we already detached | |
1864 | * one, don't make another default stream and just fail. | |
1865 | */ | |
1866 | if (qc->default_xso_created | |
1867 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
faa3a180 | 1868 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
8b7be3aa HL |
1869 | |
1870 | /* | |
1871 | * The peer may have opened a stream since we last ticked. So tick and | |
1872 | * see if the stream with ordinal 0 (remote, bidi/uni based on stream | |
1873 | * mode) exists yet. QUIC stream IDs must be allocated in order, so the | |
1874 | * first stream created by a peer must have an ordinal of 0. | |
1875 | */ | |
1876 | expect_id = qc->as_server | |
1877 | ? QUIC_STREAM_INITIATOR_CLIENT | |
1878 | : QUIC_STREAM_INITIATOR_SERVER; | |
1879 | ||
8b7be3aa | 1880 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), |
acc6fde0 HL |
1881 | expect_id | QUIC_STREAM_DIR_BIDI); |
1882 | if (qs == NULL) | |
1883 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1884 | expect_id | QUIC_STREAM_DIR_UNI); | |
1885 | ||
8b7be3aa HL |
1886 | if (qs == NULL) { |
1887 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1888 | ||
1889 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1890 | expect_id); | |
1891 | } | |
1892 | ||
1893 | if (qs == NULL) { | |
1894 | if (!qc_blocking_mode(qc)) | |
1895 | /* Non-blocking mode, so just bail immediately. */ | |
faa3a180 | 1896 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); |
8b7be3aa HL |
1897 | |
1898 | /* Block until we have a stream. */ | |
1899 | wargs.qc = qc; | |
1900 | wargs.qs = NULL; | |
faa3a180 | 1901 | wargs.ctx = ctx; |
8b7be3aa HL |
1902 | wargs.expect_id = expect_id; |
1903 | ||
1904 | res = block_until_pred(qc, quic_wait_for_stream, &wargs, 0); | |
1905 | if (res == 0) | |
faa3a180 | 1906 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa HL |
1907 | else if (res < 0 || wargs.qs == NULL) |
1908 | /* quic_wait_for_stream raised error here */ | |
21c80696 | 1909 | return 0; |
8b7be3aa HL |
1910 | |
1911 | qs = wargs.qs; | |
21c80696 HL |
1912 | } |
1913 | ||
8b7be3aa | 1914 | /* |
cd138c33 HL |
1915 | * We now have qs != NULL. Remove it from the incoming stream queue so that |
1916 | * it isn't also returned by any future SSL_accept_stream calls. | |
1917 | */ | |
1918 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(qc->ch), &rtt_info); | |
1919 | ossl_quic_stream_map_remove_from_accept_queue(ossl_quic_channel_get_qsm(qc->ch), | |
1920 | qs, rtt_info.smoothed_rtt); | |
1921 | ||
1922 | /* | |
1923 | * Now make qs the default stream, creating the necessary XSO. | |
8b7be3aa | 1924 | */ |
995ff282 | 1925 | qc_set_default_xso(qc, create_xso_from_stream(qc, qs), /*touch=*/0); |
8b7be3aa | 1926 | if (qc->default_xso == NULL) |
a954f761 | 1927 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1928 | |
995ff282 | 1929 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
21c80696 HL |
1930 | return 1; |
1931 | } | |
1932 | ||
1933 | QUIC_NEEDS_LOCK | |
1934 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs) | |
1935 | { | |
1936 | QUIC_XSO *xso = NULL; | |
1937 | ||
8ee3ee10 | 1938 | if ((xso = OPENSSL_zalloc(sizeof(*xso))) == NULL) { |
a954f761 | 1939 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_CRYPTO_LIB, NULL); |
21c80696 | 1940 | goto err; |
8ee3ee10 | 1941 | } |
21c80696 | 1942 | |
8ee3ee10 | 1943 | if (!ossl_ssl_init(&xso->ssl, qc->ssl.ctx, qc->ssl.method, SSL_TYPE_QUIC_XSO)) { |
a954f761 | 1944 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
21c80696 | 1945 | goto err; |
8ee3ee10 | 1946 | } |
21c80696 | 1947 | |
9cab4bd5 | 1948 | /* XSO refs QC */ |
8ee3ee10 | 1949 | if (!SSL_up_ref(&qc->ssl)) { |
a954f761 | 1950 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_SSL_LIB, NULL); |
9cab4bd5 | 1951 | goto err; |
8ee3ee10 | 1952 | } |
9cab4bd5 | 1953 | |
21c80696 | 1954 | xso->conn = qc; |
21c80696 | 1955 | xso->ssl_mode = qc->default_ssl_mode; |
db2f98c4 HL |
1956 | xso->ssl_options |
1957 | = qc->default_ssl_options & OSSL_QUIC_PERMITTED_OPTIONS_STREAM; | |
faa3a180 | 1958 | xso->last_error = SSL_ERROR_NONE; |
21c80696 HL |
1959 | |
1960 | xso->stream = qs; | |
1961 | ||
1962 | ++qc->num_xso; | |
db2f98c4 | 1963 | xso_update_options(xso); |
21c80696 HL |
1964 | return xso; |
1965 | ||
1966 | err: | |
1967 | OPENSSL_free(xso); | |
1968 | return NULL; | |
1969 | } | |
1970 | ||
9d6bd3d3 HL |
1971 | struct quic_new_stream_wait_args { |
1972 | QUIC_CONNECTION *qc; | |
1973 | int is_uni; | |
1974 | }; | |
1975 | ||
1976 | static int quic_new_stream_wait(void *arg) | |
1977 | { | |
1978 | struct quic_new_stream_wait_args *args = arg; | |
1979 | QUIC_CONNECTION *qc = args->qc; | |
1980 | ||
1981 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) | |
1982 | return -1; | |
1983 | ||
1984 | if (ossl_quic_channel_is_new_local_stream_admissible(qc->ch, args->is_uni)) | |
1985 | return 1; | |
1986 | ||
1987 | return 0; | |
1988 | } | |
1989 | ||
13ac037d | 1990 | /* locking depends on need_lock */ |
faa3a180 | 1991 | static SSL *quic_conn_stream_new(QCTX *ctx, uint64_t flags, int need_lock) |
cb5c208b | 1992 | { |
9d6bd3d3 | 1993 | int ret; |
faa3a180 | 1994 | QUIC_CONNECTION *qc = ctx->qc; |
cb5c208b | 1995 | QUIC_XSO *xso = NULL; |
21c80696 | 1996 | QUIC_STREAM *qs = NULL; |
2dbc39de | 1997 | int is_uni = ((flags & SSL_STREAM_FLAG_UNI) != 0); |
9d6bd3d3 HL |
1998 | int no_blocking = ((flags & SSL_STREAM_FLAG_NO_BLOCK) != 0); |
1999 | int advance = ((flags & SSL_STREAM_FLAG_ADVANCE) != 0); | |
cb5c208b | 2000 | |
13ac037d HL |
2001 | if (need_lock) |
2002 | quic_lock(qc); | |
2dbc39de | 2003 | |
6d6b3a03 | 2004 | if (!quic_mutation_allowed(qc, /*req_active=*/0)) { |
a954f761 | 2005 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2dbc39de HL |
2006 | goto err; |
2007 | } | |
2008 | ||
9d6bd3d3 HL |
2009 | if (!advance |
2010 | && !ossl_quic_channel_is_new_local_stream_admissible(qc->ch, is_uni)) { | |
2011 | struct quic_new_stream_wait_args args; | |
2012 | ||
2013 | /* | |
2014 | * Stream count flow control currently doesn't permit this stream to be | |
2015 | * opened. | |
2016 | */ | |
2017 | if (no_blocking || !qc_blocking_mode(qc)) { | |
96fe5e5f | 2018 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_STREAM_COUNT_LIMITED, NULL); |
9d6bd3d3 HL |
2019 | goto err; |
2020 | } | |
2021 | ||
2022 | args.qc = qc; | |
2023 | args.is_uni = is_uni; | |
2024 | ||
2025 | /* Blocking mode - wait until we can get a stream. */ | |
2026 | ret = block_until_pred(ctx->qc, quic_new_stream_wait, &args, 0); | |
2027 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { | |
96fe5e5f | 2028 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
9d6bd3d3 HL |
2029 | goto err; /* Shutdown before completion */ |
2030 | } else if (ret <= 0) { | |
96fe5e5f | 2031 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
9d6bd3d3 HL |
2032 | goto err; /* Non-protocol error */ |
2033 | } | |
2034 | } | |
2035 | ||
13ac037d | 2036 | qs = ossl_quic_channel_new_stream_local(qc->ch, is_uni); |
96014840 | 2037 | if (qs == NULL) { |
a954f761 | 2038 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
2dbc39de | 2039 | goto err; |
96014840 | 2040 | } |
cb5c208b | 2041 | |
13ac037d | 2042 | xso = create_xso_from_stream(qc, qs); |
8ee3ee10 | 2043 | if (xso == NULL) |
cb5c208b HL |
2044 | goto err; |
2045 | ||
13ac037d HL |
2046 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
2047 | if (need_lock) | |
2048 | quic_unlock(qc); | |
2049 | ||
cb5c208b HL |
2050 | return &xso->ssl; |
2051 | ||
2052 | err: | |
2053 | OPENSSL_free(xso); | |
13ac037d HL |
2054 | ossl_quic_stream_map_release(ossl_quic_channel_get_qsm(qc->ch), qs); |
2055 | if (need_lock) | |
2056 | quic_unlock(qc); | |
2057 | ||
cb5c208b | 2058 | return NULL; |
13ac037d HL |
2059 | |
2060 | } | |
2061 | ||
2062 | QUIC_TAKES_LOCK | |
2063 | SSL *ossl_quic_conn_stream_new(SSL *s, uint64_t flags) | |
2064 | { | |
2065 | QCTX ctx; | |
2066 | ||
56df4cf2 | 2067 | if (!expect_quic_conn_only(s, &ctx)) |
13ac037d HL |
2068 | return NULL; |
2069 | ||
faa3a180 | 2070 | return quic_conn_stream_new(&ctx, flags, /*need_lock=*/1); |
cb5c208b HL |
2071 | } |
2072 | ||
22d53c88 HL |
2073 | /* |
2074 | * QUIC Front-End I/O API: Steady-State Operations | |
2075 | * =============================================== | |
2076 | * | |
2077 | * Here we dispatch calls to the steady-state front-end I/O API functions; that | |
2078 | * is, the functions used during the established phase of a QUIC connection | |
2079 | * (e.g. SSL_read, SSL_write). | |
2080 | * | |
2081 | * Each function must handle both blocking and non-blocking modes. As discussed | |
2082 | * above, all QUIC I/O is implemented using non-blocking mode internally. | |
2083 | * | |
2084 | * SSL_get_error => partially implemented by ossl_quic_get_error | |
5debf070 | 2085 | * SSL_want => ossl_quic_want |
22d53c88 HL |
2086 | * (BIO/)SSL_read => ossl_quic_read |
2087 | * (BIO/)SSL_write => ossl_quic_write | |
2088 | * SSL_pending => ossl_quic_pending | |
a9979965 | 2089 | * SSL_stream_conclude => ossl_quic_conn_stream_conclude |
2525109f | 2090 | * SSL_key_update => ossl_quic_key_update |
22d53c88 HL |
2091 | */ |
2092 | ||
2093 | /* SSL_get_error */ | |
072328dd | 2094 | int ossl_quic_get_error(const SSL *s, int i) |
e44795bd | 2095 | { |
072328dd | 2096 | QCTX ctx; |
5c3474ea | 2097 | int net_error, last_error; |
072328dd HL |
2098 | |
2099 | if (!expect_quic(s, &ctx)) | |
2100 | return 0; | |
2101 | ||
5c3474ea TM |
2102 | quic_lock(ctx.qc); |
2103 | net_error = ossl_quic_channel_net_error(ctx.qc->ch); | |
2104 | last_error = ctx.is_stream ? ctx.xso->last_error : ctx.qc->last_error; | |
2105 | quic_unlock(ctx.qc); | |
2106 | ||
2107 | if (net_error) | |
2108 | return SSL_ERROR_SYSCALL; | |
2109 | ||
2110 | return last_error; | |
e44795bd TM |
2111 | } |
2112 | ||
5debf070 HL |
2113 | /* Converts a code returned by SSL_get_error to a code returned by SSL_want. */ |
2114 | static int error_to_want(int error) | |
2115 | { | |
2116 | switch (error) { | |
2117 | case SSL_ERROR_WANT_CONNECT: /* never used - UDP is connectionless */ | |
2118 | case SSL_ERROR_WANT_ACCEPT: /* never used - UDP is connectionless */ | |
2119 | case SSL_ERROR_ZERO_RETURN: | |
2120 | default: | |
2121 | return SSL_NOTHING; | |
2122 | ||
2123 | case SSL_ERROR_WANT_READ: | |
2124 | return SSL_READING; | |
2125 | ||
2126 | case SSL_ERROR_WANT_WRITE: | |
2127 | return SSL_WRITING; | |
2128 | ||
3a0012cb MC |
2129 | case SSL_ERROR_WANT_RETRY_VERIFY: |
2130 | return SSL_RETRY_VERIFY; | |
2131 | ||
5debf070 HL |
2132 | case SSL_ERROR_WANT_CLIENT_HELLO_CB: |
2133 | return SSL_CLIENT_HELLO_CB; | |
2134 | ||
2135 | case SSL_ERROR_WANT_X509_LOOKUP: | |
2136 | return SSL_X509_LOOKUP; | |
2137 | } | |
2138 | } | |
2139 | ||
2140 | /* SSL_want */ | |
2141 | int ossl_quic_want(const SSL *s) | |
2142 | { | |
2143 | QCTX ctx; | |
2144 | int w; | |
2145 | ||
2146 | if (!expect_quic(s, &ctx)) | |
2147 | return SSL_NOTHING; | |
2148 | ||
2149 | quic_lock(ctx.qc); | |
2150 | ||
2151 | w = error_to_want(ctx.is_stream ? ctx.xso->last_error : ctx.qc->last_error); | |
2152 | ||
2153 | quic_unlock(ctx.qc); | |
2154 | return w; | |
2155 | } | |
2156 | ||
22d53c88 HL |
2157 | /* |
2158 | * SSL_write | |
2159 | * --------- | |
2160 | * | |
2161 | * The set of functions below provide the implementation of the public SSL_write | |
2162 | * function. We must handle: | |
2163 | * | |
2164 | * - both blocking and non-blocking operation at the application level, | |
2165 | * depending on how we are configured; | |
2166 | * | |
2167 | * - SSL_MODE_ENABLE_PARTIAL_WRITE being on or off; | |
2168 | * | |
2169 | * - SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER. | |
2170 | * | |
2171 | */ | |
4847599b | 2172 | QUIC_NEEDS_LOCK |
113be15a HL |
2173 | static void quic_post_write(QUIC_XSO *xso, int did_append, |
2174 | int did_append_all, uint64_t flags, | |
2175 | int do_tick) | |
22d53c88 HL |
2176 | { |
2177 | /* | |
2178 | * We have appended at least one byte to the stream. | |
2179 | * Potentially mark stream as active, depending on FC. | |
2180 | */ | |
2181 | if (did_append) | |
cb5c208b HL |
2182 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(xso->conn->ch), |
2183 | xso->stream); | |
22d53c88 | 2184 | |
113be15a HL |
2185 | if (did_append_all && (flags & SSL_WRITE_FLAG_CONCLUDE) != 0) |
2186 | ossl_quic_sstream_fin(xso->stream->sstream); | |
2187 | ||
22d53c88 HL |
2188 | /* |
2189 | * Try and send. | |
2190 | * | |
44cb36d0 TM |
2191 | * TODO(QUIC FUTURE): It is probably inefficient to try and do this |
2192 | * immediately, plus we should eventually consider Nagle's algorithm. | |
22d53c88 HL |
2193 | */ |
2194 | if (do_tick) | |
cb5c208b | 2195 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(xso->conn->ch), 0); |
22d53c88 HL |
2196 | } |
2197 | ||
2198 | struct quic_write_again_args { | |
cb5c208b | 2199 | QUIC_XSO *xso; |
22d53c88 HL |
2200 | const unsigned char *buf; |
2201 | size_t len; | |
2202 | size_t total_written; | |
abfe3d51 | 2203 | int err; |
113be15a | 2204 | uint64_t flags; |
22d53c88 HL |
2205 | }; |
2206 | ||
b119f8b8 HL |
2207 | /* |
2208 | * Absolute maximum write buffer size, enforced to prevent a rogue peer from | |
2209 | * deliberately inducing DoS. This has been chosen based on the optimal buffer | |
2210 | * size for an RTT of 500ms and a bandwidth of 100 Mb/s. | |
2211 | */ | |
2212 | #define MAX_WRITE_BUF_SIZE (6 * 1024 * 1024) | |
2213 | ||
2214 | /* | |
2215 | * Ensure spare buffer space available (up until a limit, at least). | |
2216 | */ | |
2217 | QUIC_NEEDS_LOCK | |
2218 | static int sstream_ensure_spare(QUIC_SSTREAM *sstream, uint64_t spare) | |
2219 | { | |
2220 | size_t cur_sz = ossl_quic_sstream_get_buffer_size(sstream); | |
2221 | size_t avail = ossl_quic_sstream_get_buffer_avail(sstream); | |
2222 | size_t spare_ = (spare > SIZE_MAX) ? SIZE_MAX : (size_t)spare; | |
2223 | size_t new_sz, growth; | |
2224 | ||
2225 | if (spare_ <= avail || cur_sz == MAX_WRITE_BUF_SIZE) | |
2226 | return 1; | |
2227 | ||
2228 | growth = spare_ - avail; | |
2229 | if (cur_sz + growth > MAX_WRITE_BUF_SIZE) | |
2230 | new_sz = MAX_WRITE_BUF_SIZE; | |
2231 | else | |
2232 | new_sz = cur_sz + growth; | |
2233 | ||
2234 | return ossl_quic_sstream_set_buffer_size(sstream, new_sz); | |
2235 | } | |
2236 | ||
2237 | /* | |
2238 | * Append to a QUIC_STREAM's QUIC_SSTREAM, ensuring buffer space is expanded | |
2239 | * as needed according to flow control. | |
2240 | */ | |
2241 | QUIC_NEEDS_LOCK | |
2242 | static int xso_sstream_append(QUIC_XSO *xso, const unsigned char *buf, | |
2243 | size_t len, size_t *actual_written) | |
2244 | { | |
2245 | QUIC_SSTREAM *sstream = xso->stream->sstream; | |
2246 | uint64_t cur = ossl_quic_sstream_get_cur_size(sstream); | |
2247 | uint64_t cwm = ossl_quic_txfc_get_cwm(&xso->stream->txfc); | |
2248 | uint64_t permitted = (cwm >= cur ? cwm - cur : 0); | |
2249 | ||
2250 | if (len > permitted) | |
2251 | len = (size_t)permitted; | |
2252 | ||
2253 | if (!sstream_ensure_spare(sstream, len)) | |
2254 | return 0; | |
2255 | ||
2256 | return ossl_quic_sstream_append(sstream, buf, len, actual_written); | |
2257 | } | |
2258 | ||
4847599b | 2259 | QUIC_NEEDS_LOCK |
22d53c88 HL |
2260 | static int quic_write_again(void *arg) |
2261 | { | |
2262 | struct quic_write_again_args *args = arg; | |
2263 | size_t actual_written = 0; | |
2264 | ||
6d6b3a03 | 2265 | if (!quic_mutation_allowed(args->xso->conn, /*req_active=*/1)) |
22d53c88 HL |
2266 | /* If connection is torn down due to an error while blocking, stop. */ |
2267 | return -2; | |
2268 | ||
abfe3d51 HL |
2269 | if (!quic_validate_for_write(args->xso, &args->err)) |
2270 | /* | |
2271 | * Stream may have become invalid for write due to connection events | |
2272 | * while we blocked. | |
2273 | */ | |
2274 | return -2; | |
2275 | ||
2276 | args->err = ERR_R_INTERNAL_ERROR; | |
b119f8b8 | 2277 | if (!xso_sstream_append(args->xso, args->buf, args->len, &actual_written)) |
22d53c88 HL |
2278 | return -2; |
2279 | ||
113be15a HL |
2280 | quic_post_write(args->xso, actual_written > 0, |
2281 | args->len == actual_written, args->flags, 0); | |
22d53c88 HL |
2282 | |
2283 | args->buf += actual_written; | |
2284 | args->len -= actual_written; | |
2285 | args->total_written += actual_written; | |
2286 | ||
3f0c310b | 2287 | if (args->len == 0) |
22d53c88 HL |
2288 | /* Written everything, done. */ |
2289 | return 1; | |
2290 | ||
2291 | /* Not written everything yet, keep trying. */ | |
2292 | return 0; | |
2293 | } | |
2294 | ||
4847599b | 2295 | QUIC_NEEDS_LOCK |
faa3a180 | 2296 | static int quic_write_blocking(QCTX *ctx, const void *buf, size_t len, |
113be15a | 2297 | uint64_t flags, size_t *written) |
e44795bd | 2298 | { |
22d53c88 | 2299 | int res; |
faa3a180 | 2300 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
2301 | struct quic_write_again_args args; |
2302 | size_t actual_written = 0; | |
2303 | ||
2304 | /* First make a best effort to append as much of the data as possible. */ | |
b119f8b8 | 2305 | if (!xso_sstream_append(xso, buf, len, &actual_written)) { |
22d53c88 HL |
2306 | /* Stream already finished or allocation error. */ |
2307 | *written = 0; | |
faa3a180 | 2308 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2309 | } |
2310 | ||
113be15a | 2311 | quic_post_write(xso, actual_written > 0, actual_written == len, flags, 1); |
22d53c88 HL |
2312 | |
2313 | if (actual_written == len) { | |
2314 | /* Managed to append everything on the first try. */ | |
2315 | *written = actual_written; | |
2316 | return 1; | |
2317 | } | |
2318 | ||
2319 | /* | |
2320 | * We did not manage to append all of the data immediately, so the stream | |
2321 | * buffer has probably filled up. This means we need to block until some of | |
2322 | * it is freed up. | |
2323 | */ | |
cb5c208b | 2324 | args.xso = xso; |
22d53c88 HL |
2325 | args.buf = (const unsigned char *)buf + actual_written; |
2326 | args.len = len - actual_written; | |
2327 | args.total_written = 0; | |
abfe3d51 | 2328 | args.err = ERR_R_INTERNAL_ERROR; |
113be15a | 2329 | args.flags = flags; |
22d53c88 | 2330 | |
cb5c208b | 2331 | res = block_until_pred(xso->conn, quic_write_again, &args, 0); |
22d53c88 | 2332 | if (res <= 0) { |
6d6b3a03 | 2333 | if (!quic_mutation_allowed(xso->conn, /*req_active=*/1)) |
faa3a180 | 2334 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 2335 | else |
abfe3d51 | 2336 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, args.err, NULL); |
22d53c88 HL |
2337 | } |
2338 | ||
2339 | *written = args.total_written; | |
e44795bd TM |
2340 | return 1; |
2341 | } | |
2342 | ||
ca41f6b7 HL |
2343 | /* |
2344 | * Functions to manage All-or-Nothing (AON) (that is, non-ENABLE_PARTIAL_WRITE) | |
2345 | * write semantics. | |
2346 | */ | |
cb5c208b | 2347 | static void aon_write_begin(QUIC_XSO *xso, const unsigned char *buf, |
22d53c88 HL |
2348 | size_t buf_len, size_t already_sent) |
2349 | { | |
cb5c208b | 2350 | assert(!xso->aon_write_in_progress); |
22d53c88 | 2351 | |
cb5c208b HL |
2352 | xso->aon_write_in_progress = 1; |
2353 | xso->aon_buf_base = buf; | |
2354 | xso->aon_buf_pos = already_sent; | |
2355 | xso->aon_buf_len = buf_len; | |
22d53c88 HL |
2356 | } |
2357 | ||
cb5c208b | 2358 | static void aon_write_finish(QUIC_XSO *xso) |
22d53c88 | 2359 | { |
cb5c208b HL |
2360 | xso->aon_write_in_progress = 0; |
2361 | xso->aon_buf_base = NULL; | |
2362 | xso->aon_buf_pos = 0; | |
2363 | xso->aon_buf_len = 0; | |
22d53c88 HL |
2364 | } |
2365 | ||
4847599b | 2366 | QUIC_NEEDS_LOCK |
faa3a180 | 2367 | static int quic_write_nonblocking_aon(QCTX *ctx, const void *buf, |
113be15a HL |
2368 | size_t len, uint64_t flags, |
2369 | size_t *written) | |
e44795bd | 2370 | { |
faa3a180 | 2371 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
2372 | const void *actual_buf; |
2373 | size_t actual_len, actual_written = 0; | |
2374 | int accept_moving_buffer | |
cb5c208b | 2375 | = ((xso->ssl_mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER) != 0); |
22d53c88 | 2376 | |
cb5c208b | 2377 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2378 | /* |
2379 | * We are in the middle of an AON write (i.e., a previous write did not | |
75b2920a HL |
2380 | * manage to append all data to the SSTREAM and we have Enable Partial |
2381 | * Write (EPW) mode disabled.) | |
22d53c88 | 2382 | */ |
cb5c208b HL |
2383 | if ((!accept_moving_buffer && xso->aon_buf_base != buf) |
2384 | || len != xso->aon_buf_len) | |
22d53c88 HL |
2385 | /* |
2386 | * Pointer must not have changed if we are not in accept moving | |
2387 | * buffer mode. Length must never change. | |
2388 | */ | |
faa3a180 | 2389 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BAD_WRITE_RETRY, NULL); |
22d53c88 | 2390 | |
cb5c208b HL |
2391 | actual_buf = (unsigned char *)buf + xso->aon_buf_pos; |
2392 | actual_len = len - xso->aon_buf_pos; | |
22d53c88 HL |
2393 | assert(actual_len > 0); |
2394 | } else { | |
2395 | actual_buf = buf; | |
2396 | actual_len = len; | |
2397 | } | |
2398 | ||
2399 | /* First make a best effort to append as much of the data as possible. */ | |
b119f8b8 | 2400 | if (!xso_sstream_append(xso, actual_buf, actual_len, &actual_written)) { |
22d53c88 HL |
2401 | /* Stream already finished or allocation error. */ |
2402 | *written = 0; | |
faa3a180 | 2403 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2404 | } |
2405 | ||
113be15a HL |
2406 | quic_post_write(xso, actual_written > 0, actual_written == actual_len, |
2407 | flags, 1); | |
22d53c88 HL |
2408 | |
2409 | if (actual_written == actual_len) { | |
2410 | /* We have sent everything. */ | |
cb5c208b | 2411 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2412 | /* |
2413 | * We have sent everything, and we were in the middle of an AON | |
2414 | * write. The output write length is the total length of the AON | |
2415 | * buffer, not however many bytes we managed to write to the stream | |
2416 | * in this call. | |
2417 | */ | |
cb5c208b HL |
2418 | *written = xso->aon_buf_len; |
2419 | aon_write_finish(xso); | |
22d53c88 HL |
2420 | } else { |
2421 | *written = actual_written; | |
2422 | } | |
2423 | ||
2424 | return 1; | |
2425 | } | |
2426 | ||
cb5c208b | 2427 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2428 | /* |
2429 | * AON write is in progress but we have not written everything yet. We | |
2430 | * may have managed to send zero bytes, or some number of bytes less | |
2431 | * than the total remaining which need to be appended during this | |
2432 | * AON operation. | |
2433 | */ | |
cb5c208b HL |
2434 | xso->aon_buf_pos += actual_written; |
2435 | assert(xso->aon_buf_pos < xso->aon_buf_len); | |
faa3a180 | 2436 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
22d53c88 HL |
2437 | } |
2438 | ||
08e49012 | 2439 | /* |
22d53c88 HL |
2440 | * Not in an existing AON operation but partial write is not enabled, so we |
2441 | * need to begin a new AON operation. However we needn't bother if we didn't | |
2442 | * actually append anything. | |
08e49012 | 2443 | */ |
22d53c88 | 2444 | if (actual_written > 0) |
cb5c208b | 2445 | aon_write_begin(xso, buf, len, actual_written); |
e44795bd | 2446 | |
22d53c88 HL |
2447 | /* |
2448 | * AON - We do not publicly admit to having appended anything until AON | |
2449 | * completes. | |
2450 | */ | |
2451 | *written = 0; | |
faa3a180 | 2452 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
e44795bd TM |
2453 | } |
2454 | ||
4847599b | 2455 | QUIC_NEEDS_LOCK |
faa3a180 | 2456 | static int quic_write_nonblocking_epw(QCTX *ctx, const void *buf, size_t len, |
113be15a | 2457 | uint64_t flags, size_t *written) |
e44795bd | 2458 | { |
faa3a180 HL |
2459 | QUIC_XSO *xso = ctx->xso; |
2460 | ||
22d53c88 | 2461 | /* Simple best effort operation. */ |
b119f8b8 | 2462 | if (!xso_sstream_append(xso, buf, len, written)) { |
22d53c88 HL |
2463 | /* Stream already finished or allocation error. */ |
2464 | *written = 0; | |
faa3a180 | 2465 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2466 | } |
2467 | ||
113be15a | 2468 | quic_post_write(xso, *written > 0, *written == len, flags, 1); |
e44795bd TM |
2469 | return 1; |
2470 | } | |
d5ab48a1 | 2471 | |
abfe3d51 HL |
2472 | QUIC_NEEDS_LOCK |
2473 | static int quic_validate_for_write(QUIC_XSO *xso, int *err) | |
2474 | { | |
2475 | QUIC_STREAM_MAP *qsm; | |
2476 | ||
2477 | if (xso == NULL || xso->stream == NULL) { | |
2478 | *err = ERR_R_INTERNAL_ERROR; | |
2479 | return 0; | |
2480 | } | |
2481 | ||
2482 | switch (xso->stream->send_state) { | |
2483 | default: | |
2484 | case QUIC_SSTREAM_STATE_NONE: | |
2485 | *err = SSL_R_STREAM_RECV_ONLY; | |
2486 | return 0; | |
2487 | ||
2488 | case QUIC_SSTREAM_STATE_READY: | |
2489 | qsm = ossl_quic_channel_get_qsm(xso->conn->ch); | |
2490 | ||
2491 | if (!ossl_quic_stream_map_ensure_send_part_id(qsm, xso->stream)) { | |
2492 | *err = ERR_R_INTERNAL_ERROR; | |
2493 | return 0; | |
2494 | } | |
2495 | ||
2496 | /* FALLTHROUGH */ | |
2497 | case QUIC_SSTREAM_STATE_SEND: | |
2498 | case QUIC_SSTREAM_STATE_DATA_SENT: | |
2499 | case QUIC_SSTREAM_STATE_DATA_RECVD: | |
2500 | if (ossl_quic_sstream_get_final_size(xso->stream->sstream, NULL)) { | |
2501 | *err = SSL_R_STREAM_FINISHED; | |
2502 | return 0; | |
2503 | } | |
2504 | ||
2505 | return 1; | |
2506 | ||
2507 | case QUIC_SSTREAM_STATE_RESET_SENT: | |
2508 | case QUIC_SSTREAM_STATE_RESET_RECVD: | |
2509 | *err = SSL_R_STREAM_RESET; | |
2510 | return 0; | |
2511 | } | |
2512 | } | |
2513 | ||
a8489257 | 2514 | QUIC_TAKES_LOCK |
113be15a HL |
2515 | int ossl_quic_write_flags(SSL *s, const void *buf, size_t len, |
2516 | uint64_t flags, size_t *written) | |
d5ab48a1 | 2517 | { |
a8489257 | 2518 | int ret; |
072328dd | 2519 | QCTX ctx; |
abfe3d51 | 2520 | int partial_write, err; |
22d53c88 HL |
2521 | |
2522 | *written = 0; | |
2523 | ||
a954f761 | 2524 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, /*io=*/1, &ctx)) |
8b7be3aa | 2525 | return 0; |
a8489257 | 2526 | |
cb5c208b | 2527 | partial_write = ((ctx.xso->ssl_mode & SSL_MODE_ENABLE_PARTIAL_WRITE) != 0); |
072328dd | 2528 | |
113be15a HL |
2529 | if ((flags & ~SSL_WRITE_FLAG_CONCLUDE) != 0) { |
2530 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_UNSUPPORTED_WRITE_FLAG, NULL); | |
2531 | goto out; | |
2532 | } | |
2533 | ||
6d6b3a03 | 2534 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/0)) { |
faa3a180 | 2535 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2536 | goto out; |
2537 | } | |
22d53c88 | 2538 | |
ca41f6b7 HL |
2539 | /* |
2540 | * If we haven't finished the handshake, try to advance it. | |
2541 | * We don't accept writes until the handshake is completed. | |
2542 | */ | |
faa3a180 | 2543 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2544 | ret = 0; |
2545 | goto out; | |
2546 | } | |
ca41f6b7 | 2547 | |
abfe3d51 HL |
2548 | /* Ensure correct stream state, stream send part not concluded, etc. */ |
2549 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2550 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2551 | goto out; |
2552 | } | |
22d53c88 | 2553 | |
33f6ad17 | 2554 | if (len == 0) { |
113be15a HL |
2555 | if ((flags & SSL_WRITE_FLAG_CONCLUDE) != 0) |
2556 | quic_post_write(ctx.xso, 0, 1, flags, 1); | |
2557 | ||
33f6ad17 MC |
2558 | ret = 1; |
2559 | goto out; | |
2560 | } | |
2561 | ||
cb5c208b | 2562 | if (xso_blocking_mode(ctx.xso)) |
113be15a | 2563 | ret = quic_write_blocking(&ctx, buf, len, flags, written); |
22d53c88 | 2564 | else if (partial_write) |
113be15a | 2565 | ret = quic_write_nonblocking_epw(&ctx, buf, len, flags, written); |
22d53c88 | 2566 | else |
113be15a | 2567 | ret = quic_write_nonblocking_aon(&ctx, buf, len, flags, written); |
a8489257 HL |
2568 | |
2569 | out: | |
072328dd | 2570 | quic_unlock(ctx.qc); |
a8489257 | 2571 | return ret; |
d5ab48a1 RL |
2572 | } |
2573 | ||
113be15a HL |
2574 | QUIC_TAKES_LOCK |
2575 | int ossl_quic_write(SSL *s, const void *buf, size_t len, size_t *written) | |
2576 | { | |
2577 | return ossl_quic_write_flags(s, buf, len, 0, written); | |
2578 | } | |
2579 | ||
d5ab48a1 | 2580 | /* |
22d53c88 HL |
2581 | * SSL_read |
2582 | * -------- | |
d5ab48a1 | 2583 | */ |
22d53c88 | 2584 | struct quic_read_again_args { |
faa3a180 | 2585 | QCTX *ctx; |
22d53c88 HL |
2586 | QUIC_STREAM *stream; |
2587 | void *buf; | |
2588 | size_t len; | |
2589 | size_t *bytes_read; | |
2590 | int peek; | |
2591 | }; | |
2592 | ||
e0bd2825 HL |
2593 | QUIC_NEEDS_LOCK |
2594 | static int quic_validate_for_read(QUIC_XSO *xso, int *err, int *eos) | |
2595 | { | |
08d4b7eb | 2596 | QUIC_STREAM_MAP *qsm; |
e0bd2825 | 2597 | |
5ed3a435 HL |
2598 | *eos = 0; |
2599 | ||
e0bd2825 HL |
2600 | if (xso == NULL || xso->stream == NULL) { |
2601 | *err = ERR_R_INTERNAL_ERROR; | |
2602 | return 0; | |
2603 | } | |
2604 | ||
2605 | switch (xso->stream->recv_state) { | |
2606 | default: | |
2607 | case QUIC_RSTREAM_STATE_NONE: | |
2608 | *err = SSL_R_STREAM_SEND_ONLY; | |
2609 | return 0; | |
2610 | ||
2611 | case QUIC_RSTREAM_STATE_RECV: | |
2612 | case QUIC_RSTREAM_STATE_SIZE_KNOWN: | |
2613 | case QUIC_RSTREAM_STATE_DATA_RECVD: | |
2614 | return 1; | |
2615 | ||
2616 | case QUIC_RSTREAM_STATE_DATA_READ: | |
2617 | *eos = 1; | |
2618 | return 0; | |
2619 | ||
2620 | case QUIC_RSTREAM_STATE_RESET_RECVD: | |
08d4b7eb HL |
2621 | qsm = ossl_quic_channel_get_qsm(xso->conn->ch); |
2622 | ossl_quic_stream_map_notify_app_read_reset_recv_part(qsm, xso->stream); | |
2623 | ||
2624 | /* FALLTHROUGH */ | |
e0bd2825 HL |
2625 | case QUIC_RSTREAM_STATE_RESET_READ: |
2626 | *err = SSL_R_STREAM_RESET; | |
2627 | return 0; | |
2628 | } | |
2629 | } | |
2630 | ||
4847599b | 2631 | QUIC_NEEDS_LOCK |
faa3a180 | 2632 | static int quic_read_actual(QCTX *ctx, |
22d53c88 HL |
2633 | QUIC_STREAM *stream, |
2634 | void *buf, size_t buf_len, | |
2635 | size_t *bytes_read, | |
2636 | int peek) | |
d5ab48a1 | 2637 | { |
e0bd2825 | 2638 | int is_fin = 0, err, eos; |
faa3a180 | 2639 | QUIC_CONNECTION *qc = ctx->qc; |
22d53c88 | 2640 | |
e0bd2825 HL |
2641 | if (!quic_validate_for_read(ctx->xso, &err, &eos)) { |
2642 | if (eos) | |
2643 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); | |
2644 | else | |
2645 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, err, NULL); | |
2646 | } | |
2647 | ||
22d53c88 HL |
2648 | if (peek) { |
2649 | if (!ossl_quic_rstream_peek(stream->rstream, buf, buf_len, | |
2650 | bytes_read, &is_fin)) | |
faa3a180 | 2651 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2652 | |
2653 | } else { | |
2654 | if (!ossl_quic_rstream_read(stream->rstream, buf, buf_len, | |
2655 | bytes_read, &is_fin)) | |
faa3a180 | 2656 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2657 | } |
2658 | ||
2659 | if (!peek) { | |
2660 | if (*bytes_read > 0) { | |
2661 | /* | |
2662 | * We have read at least one byte from the stream. Inform stream-level | |
2663 | * RXFC of the retirement of controlled bytes. Update the active stream | |
2664 | * status (the RXFC may now want to emit a frame granting more credit to | |
2665 | * the peer). | |
2666 | */ | |
2667 | OSSL_RTT_INFO rtt_info; | |
d50e750e | 2668 | |
22d53c88 HL |
2669 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(qc->ch), &rtt_info); |
2670 | ||
cb5c208b | 2671 | if (!ossl_quic_rxfc_on_retire(&stream->rxfc, *bytes_read, |
22d53c88 | 2672 | rtt_info.smoothed_rtt)) |
faa3a180 | 2673 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2674 | } |
2675 | ||
08d4b7eb HL |
2676 | if (is_fin && !peek) { |
2677 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(ctx->qc->ch); | |
2678 | ||
2679 | ossl_quic_stream_map_notify_totally_read(qsm, ctx->xso->stream); | |
2680 | } | |
22d53c88 HL |
2681 | |
2682 | if (*bytes_read > 0) | |
2683 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(qc->ch), | |
cb5c208b | 2684 | stream); |
22d53c88 HL |
2685 | } |
2686 | ||
72622c0b MC |
2687 | if (*bytes_read == 0 && is_fin) |
2688 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); | |
2689 | ||
d5ab48a1 RL |
2690 | return 1; |
2691 | } | |
2692 | ||
4847599b | 2693 | QUIC_NEEDS_LOCK |
22d53c88 | 2694 | static int quic_read_again(void *arg) |
d5ab48a1 | 2695 | { |
22d53c88 HL |
2696 | struct quic_read_again_args *args = arg; |
2697 | ||
6d6b3a03 | 2698 | if (!quic_mutation_allowed(args->ctx->qc, /*req_active=*/1)) { |
22d53c88 | 2699 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 2700 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
ca41f6b7 | 2701 | return -1; |
a9979965 | 2702 | } |
22d53c88 | 2703 | |
faa3a180 | 2704 | if (!quic_read_actual(args->ctx, args->stream, |
22d53c88 HL |
2705 | args->buf, args->len, args->bytes_read, |
2706 | args->peek)) | |
2707 | return -1; | |
2708 | ||
2709 | if (*args->bytes_read > 0) | |
2710 | /* got at least one byte, the SSL_read op can finish now */ | |
2711 | return 1; | |
2712 | ||
81b6b43c | 2713 | return 0; /* did not read anything, keep trying */ |
d5ab48a1 RL |
2714 | } |
2715 | ||
a8489257 | 2716 | QUIC_TAKES_LOCK |
22d53c88 | 2717 | static int quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read, int peek) |
d5ab48a1 | 2718 | { |
a8489257 | 2719 | int ret, res; |
072328dd | 2720 | QCTX ctx; |
22d53c88 HL |
2721 | struct quic_read_again_args args; |
2722 | ||
2723 | *bytes_read = 0; | |
2724 | ||
8b7be3aa | 2725 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
2726 | return 0; |
2727 | ||
72ca0b88 | 2728 | quic_lock_for_io(&ctx); |
a8489257 | 2729 | |
6d6b3a03 | 2730 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/0)) { |
faa3a180 | 2731 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2732 | goto out; |
2733 | } | |
22d53c88 | 2734 | |
a9979965 | 2735 | /* If we haven't finished the handshake, try to advance it. */ |
faa3a180 | 2736 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2737 | ret = 0; /* ossl_quic_do_handshake raised error here */ |
2738 | goto out; | |
2739 | } | |
22d53c88 | 2740 | |
8b7be3aa HL |
2741 | if (ctx.xso == NULL) { |
2742 | /* | |
2743 | * Called on a QCSO and we don't currently have a default stream. | |
2744 | * | |
2745 | * Wait until we get a stream initiated by the peer (blocking mode) or | |
2746 | * fail if we don't have one yet (non-blocking mode). | |
2747 | */ | |
faa3a180 | 2748 | if (!qc_wait_for_default_xso_for_read(&ctx)) { |
8b7be3aa HL |
2749 | ret = 0; /* error already raised here */ |
2750 | goto out; | |
2751 | } | |
2752 | ||
2753 | ctx.xso = ctx.qc->default_xso; | |
2754 | } | |
2755 | ||
faa3a180 | 2756 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { |
a8489257 HL |
2757 | ret = 0; /* quic_read_actual raised error here */ |
2758 | goto out; | |
2759 | } | |
22d53c88 HL |
2760 | |
2761 | if (*bytes_read > 0) { | |
2762 | /* | |
2763 | * Even though we succeeded, tick the reactor here to ensure we are | |
2764 | * handling other aspects of the QUIC connection. | |
2765 | */ | |
072328dd | 2766 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
a8489257 | 2767 | ret = 1; |
cb5c208b | 2768 | } else if (xso_blocking_mode(ctx.xso)) { |
22d53c88 HL |
2769 | /* |
2770 | * We were not able to read anything immediately, so our stream | |
2771 | * buffer is empty. This means we need to block until we get | |
2772 | * at least one byte. | |
2773 | */ | |
faa3a180 | 2774 | args.ctx = &ctx; |
cb5c208b | 2775 | args.stream = ctx.xso->stream; |
22d53c88 HL |
2776 | args.buf = buf; |
2777 | args.len = len; | |
2778 | args.bytes_read = bytes_read; | |
2779 | args.peek = peek; | |
2780 | ||
072328dd | 2781 | res = block_until_pred(ctx.qc, quic_read_again, &args, 0); |
a8489257 | 2782 | if (res == 0) { |
faa3a180 | 2783 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 HL |
2784 | goto out; |
2785 | } else if (res < 0) { | |
2786 | ret = 0; /* quic_read_again raised error here */ | |
2787 | goto out; | |
2788 | } | |
22d53c88 | 2789 | |
a8489257 | 2790 | ret = 1; |
af8b52cf | 2791 | } else { |
780b2527 HL |
2792 | /* |
2793 | * We did not get any bytes and are not in blocking mode. | |
2794 | * Tick to see if this delivers any more. | |
2795 | */ | |
2796 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); | |
2797 | ||
2798 | /* Try the read again. */ | |
2799 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { | |
2800 | ret = 0; /* quic_read_actual raised error here */ | |
2801 | goto out; | |
2802 | } | |
2803 | ||
2804 | if (*bytes_read > 0) | |
2805 | ret = 1; /* Succeeded this time. */ | |
2806 | else | |
2807 | ret = QUIC_RAISE_NORMAL_ERROR(&ctx, SSL_ERROR_WANT_READ); | |
af8b52cf | 2808 | } |
a8489257 HL |
2809 | |
2810 | out: | |
072328dd | 2811 | quic_unlock(ctx.qc); |
a8489257 | 2812 | return ret; |
d5ab48a1 RL |
2813 | } |
2814 | ||
22d53c88 HL |
2815 | int ossl_quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read) |
2816 | { | |
2817 | return quic_read(s, buf, len, bytes_read, 0); | |
2818 | } | |
2819 | ||
2820 | int ossl_quic_peek(SSL *s, void *buf, size_t len, size_t *bytes_read) | |
2821 | { | |
2822 | return quic_read(s, buf, len, bytes_read, 1); | |
2823 | } | |
2824 | ||
2825 | /* | |
2826 | * SSL_pending | |
2827 | * ----------- | |
2828 | */ | |
9280d26a | 2829 | |
a8489257 | 2830 | QUIC_TAKES_LOCK |
d6e7ebba | 2831 | static size_t ossl_quic_pending_int(const SSL *s, int check_channel) |
22d53c88 | 2832 | { |
072328dd | 2833 | QCTX ctx; |
433d107a | 2834 | size_t avail = 0; |
22d53c88 HL |
2835 | int fin = 0; |
2836 | ||
c31f0612 MC |
2837 | |
2838 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
2839 | return 0; |
2840 | ||
c31f0612 MC |
2841 | quic_lock(ctx.qc); |
2842 | ||
8ee3ee10 | 2843 | if (ctx.xso == NULL) { |
a954f761 | 2844 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_NO_STREAM, NULL); |
c31f0612 | 2845 | goto out; |
8ee3ee10 | 2846 | } |
c31f0612 | 2847 | |
2f018d14 | 2848 | if (ctx.xso->stream == NULL |
8ee3ee10 | 2849 | || !ossl_quic_stream_has_recv_buffer(ctx.xso->stream)) { |
a954f761 | 2850 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 | 2851 | goto out; |
8ee3ee10 | 2852 | } |
22d53c88 | 2853 | |
cb5c208b | 2854 | if (!ossl_quic_rstream_available(ctx.xso->stream->rstream, &avail, &fin)) |
a8489257 | 2855 | avail = 0; |
22d53c88 | 2856 | |
d6e7ebba HL |
2857 | if (avail == 0 && check_channel && ossl_quic_channel_has_pending(ctx.qc->ch)) |
2858 | avail = 1; | |
2859 | ||
a8489257 | 2860 | out: |
072328dd | 2861 | quic_unlock(ctx.qc); |
22d53c88 HL |
2862 | return avail; |
2863 | } | |
2864 | ||
560470b5 MC |
2865 | size_t ossl_quic_pending(const SSL *s) |
2866 | { | |
d6e7ebba | 2867 | return ossl_quic_pending_int(s, /*check_channel=*/0); |
560470b5 MC |
2868 | } |
2869 | ||
072328dd | 2870 | int ossl_quic_has_pending(const SSL *s) |
560470b5 | 2871 | { |
9280d26a | 2872 | /* Do we have app-side pending data or pending URXEs or RXEs? */ |
d6e7ebba | 2873 | return ossl_quic_pending_int(s, /*check_channel=*/1) > 0; |
560470b5 MC |
2874 | } |
2875 | ||
a9979965 HL |
2876 | /* |
2877 | * SSL_stream_conclude | |
2878 | * ------------------- | |
2879 | */ | |
a8489257 | 2880 | QUIC_TAKES_LOCK |
072328dd | 2881 | int ossl_quic_conn_stream_conclude(SSL *s) |
a9979965 | 2882 | { |
072328dd HL |
2883 | QCTX ctx; |
2884 | QUIC_STREAM *qs; | |
abfe3d51 | 2885 | int err; |
072328dd | 2886 | |
a954f761 | 2887 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, /*io=*/0, &ctx)) |
072328dd HL |
2888 | return 0; |
2889 | ||
cb5c208b | 2890 | qs = ctx.xso->stream; |
a9979965 | 2891 | |
6d6b3a03 | 2892 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/1)) { |
072328dd | 2893 | quic_unlock(ctx.qc); |
abfe3d51 HL |
2894 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2895 | } | |
2896 | ||
2897 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2898 | quic_unlock(ctx.qc); | |
2899 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2900 | } |
2901 | ||
2f018d14 | 2902 | if (ossl_quic_sstream_get_final_size(qs->sstream, NULL)) { |
072328dd | 2903 | quic_unlock(ctx.qc); |
a9979965 | 2904 | return 1; |
a8489257 | 2905 | } |
a9979965 HL |
2906 | |
2907 | ossl_quic_sstream_fin(qs->sstream); | |
113be15a | 2908 | quic_post_write(ctx.xso, 1, 0, 0, 1); |
072328dd | 2909 | quic_unlock(ctx.qc); |
a9979965 HL |
2910 | return 1; |
2911 | } | |
2912 | ||
553a4e00 HL |
2913 | /* |
2914 | * SSL_inject_net_dgram | |
2915 | * -------------------- | |
2916 | */ | |
5129e594 | 2917 | QUIC_TAKES_LOCK |
553a4e00 HL |
2918 | int SSL_inject_net_dgram(SSL *s, const unsigned char *buf, |
2919 | size_t buf_len, | |
2920 | const BIO_ADDR *peer, | |
2921 | const BIO_ADDR *local) | |
2922 | { | |
5129e594 | 2923 | int ret; |
072328dd | 2924 | QCTX ctx; |
553a4e00 HL |
2925 | QUIC_DEMUX *demux; |
2926 | ||
072328dd | 2927 | if (!expect_quic(s, &ctx)) |
553a4e00 HL |
2928 | return 0; |
2929 | ||
072328dd | 2930 | quic_lock(ctx.qc); |
5129e594 | 2931 | |
072328dd | 2932 | demux = ossl_quic_channel_get0_demux(ctx.qc->ch); |
5129e594 HL |
2933 | ret = ossl_quic_demux_inject(demux, buf, buf_len, peer, local); |
2934 | ||
072328dd | 2935 | quic_unlock(ctx.qc); |
5129e594 | 2936 | return ret; |
553a4e00 HL |
2937 | } |
2938 | ||
020d0389 HL |
2939 | /* |
2940 | * SSL_get0_connection | |
2941 | * ------------------- | |
2942 | */ | |
2943 | SSL *ossl_quic_get0_connection(SSL *s) | |
2944 | { | |
2945 | QCTX ctx; | |
2946 | ||
2947 | if (!expect_quic(s, &ctx)) | |
2948 | return NULL; | |
2949 | ||
2950 | return &ctx.qc->ssl; | |
2951 | } | |
2952 | ||
1bca3f1b HL |
2953 | /* |
2954 | * SSL_get_stream_type | |
2955 | * ------------------- | |
2956 | */ | |
2957 | int ossl_quic_get_stream_type(SSL *s) | |
2958 | { | |
2959 | QCTX ctx; | |
2960 | ||
2961 | if (!expect_quic(s, &ctx)) | |
59c5c016 | 2962 | return SSL_STREAM_TYPE_BIDI; |
1bca3f1b HL |
2963 | |
2964 | if (ctx.xso == NULL) { | |
2965 | /* | |
59c5c016 HL |
2966 | * If deferred XSO creation has yet to occur, proceed according to the |
2967 | * default stream mode. If AUTO_BIDI or AUTO_UNI is set, we cannot know | |
2968 | * what kind of stream will be created yet, so return BIDI on the basis | |
2969 | * that at this time, the client still has the option of calling | |
2970 | * SSL_read() or SSL_write() first. | |
1bca3f1b | 2971 | */ |
59c5c016 HL |
2972 | if (ctx.qc->default_xso_created |
2973 | || ctx.qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
1bca3f1b | 2974 | return SSL_STREAM_TYPE_NONE; |
59c5c016 HL |
2975 | else |
2976 | return SSL_STREAM_TYPE_BIDI; | |
1bca3f1b HL |
2977 | } |
2978 | ||
2979 | if (ossl_quic_stream_is_bidi(ctx.xso->stream)) | |
2980 | return SSL_STREAM_TYPE_BIDI; | |
2981 | ||
2982 | if (ossl_quic_stream_is_server_init(ctx.xso->stream) != ctx.qc->as_server) | |
2983 | return SSL_STREAM_TYPE_READ; | |
2984 | else | |
2985 | return SSL_STREAM_TYPE_WRITE; | |
2986 | } | |
2987 | ||
19cb0887 HL |
2988 | /* |
2989 | * SSL_get_stream_id | |
2990 | * ----------------- | |
2991 | */ | |
cb68ce9f | 2992 | QUIC_TAKES_LOCK |
19cb0887 HL |
2993 | uint64_t ossl_quic_get_stream_id(SSL *s) |
2994 | { | |
2995 | QCTX ctx; | |
8b7be3aa | 2996 | uint64_t id; |
19cb0887 | 2997 | |
a954f761 | 2998 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, /*io=*/0, &ctx)) |
19cb0887 HL |
2999 | return UINT64_MAX; |
3000 | ||
8b7be3aa HL |
3001 | id = ctx.xso->stream->id; |
3002 | quic_unlock(ctx.qc); | |
3003 | ||
3004 | return id; | |
3005 | } | |
3006 | ||
d2e9e12b HL |
3007 | /* |
3008 | * SSL_is_stream_local | |
3009 | * ------------------- | |
3010 | */ | |
3011 | QUIC_TAKES_LOCK | |
3012 | int ossl_quic_is_stream_local(SSL *s) | |
3013 | { | |
3014 | QCTX ctx; | |
3015 | int is_local; | |
3016 | ||
7b1ca599 | 3017 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, /*io=*/0, &ctx)) |
d2e9e12b HL |
3018 | return -1; |
3019 | ||
3020 | is_local = ossl_quic_stream_is_local_init(ctx.xso->stream); | |
3021 | quic_unlock(ctx.qc); | |
3022 | ||
3023 | return is_local; | |
3024 | } | |
3025 | ||
8b7be3aa HL |
3026 | /* |
3027 | * SSL_set_default_stream_mode | |
3028 | * --------------------------- | |
3029 | */ | |
cb68ce9f | 3030 | QUIC_TAKES_LOCK |
8b7be3aa HL |
3031 | int ossl_quic_set_default_stream_mode(SSL *s, uint32_t mode) |
3032 | { | |
3033 | QCTX ctx; | |
3034 | ||
56df4cf2 | 3035 | if (!expect_quic_conn_only(s, &ctx)) |
8b7be3aa HL |
3036 | return 0; |
3037 | ||
3038 | quic_lock(ctx.qc); | |
3039 | ||
4669a3d7 HL |
3040 | if (ctx.qc->default_xso_created) { |
3041 | quic_unlock(ctx.qc); | |
a954f761 | 3042 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 3043 | "too late to change default stream mode"); |
4669a3d7 | 3044 | } |
8b7be3aa HL |
3045 | |
3046 | switch (mode) { | |
3047 | case SSL_DEFAULT_STREAM_MODE_NONE: | |
3048 | case SSL_DEFAULT_STREAM_MODE_AUTO_BIDI: | |
3049 | case SSL_DEFAULT_STREAM_MODE_AUTO_UNI: | |
3050 | ctx.qc->default_stream_mode = mode; | |
3051 | break; | |
3052 | default: | |
3053 | quic_unlock(ctx.qc); | |
a954f761 | 3054 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 | 3055 | "bad default stream type"); |
8b7be3aa HL |
3056 | } |
3057 | ||
3058 | quic_unlock(ctx.qc); | |
3059 | return 1; | |
3060 | } | |
3061 | ||
3062 | /* | |
3063 | * SSL_detach_stream | |
3064 | * ----------------- | |
3065 | */ | |
cb68ce9f | 3066 | QUIC_TAKES_LOCK |
8b7be3aa HL |
3067 | SSL *ossl_quic_detach_stream(SSL *s) |
3068 | { | |
3069 | QCTX ctx; | |
9cab4bd5 | 3070 | QUIC_XSO *xso = NULL; |
8b7be3aa | 3071 | |
56df4cf2 | 3072 | if (!expect_quic_conn_only(s, &ctx)) |
8b7be3aa HL |
3073 | return NULL; |
3074 | ||
3075 | quic_lock(ctx.qc); | |
3076 | ||
8b7be3aa | 3077 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 HL |
3078 | /* QC ref to any default XSO is transferred to us and to caller. */ |
3079 | qc_set_default_xso_keep_ref(ctx.qc, NULL, /*touch=*/1, &xso); | |
8b7be3aa HL |
3080 | |
3081 | quic_unlock(ctx.qc); | |
3082 | ||
9cab4bd5 | 3083 | return xso != NULL ? &xso->ssl : NULL; |
8b7be3aa HL |
3084 | } |
3085 | ||
3086 | /* | |
3087 | * SSL_attach_stream | |
3088 | * ----------------- | |
3089 | */ | |
cb68ce9f | 3090 | QUIC_TAKES_LOCK |
8b7be3aa HL |
3091 | int ossl_quic_attach_stream(SSL *conn, SSL *stream) |
3092 | { | |
3093 | QCTX ctx; | |
9cab4bd5 HL |
3094 | QUIC_XSO *xso; |
3095 | int nref; | |
8b7be3aa | 3096 | |
56df4cf2 | 3097 | if (!expect_quic_conn_only(conn, &ctx)) |
8b7be3aa HL |
3098 | return 0; |
3099 | ||
3100 | if (stream == NULL || stream->type != SSL_TYPE_QUIC_XSO) | |
a954f761 | 3101 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_NULL_PARAMETER, |
8ee3ee10 | 3102 | "stream to attach must be a valid QUIC stream"); |
8b7be3aa | 3103 | |
9cab4bd5 HL |
3104 | xso = (QUIC_XSO *)stream; |
3105 | ||
8b7be3aa HL |
3106 | quic_lock(ctx.qc); |
3107 | ||
3108 | if (ctx.qc->default_xso != NULL) { | |
3109 | quic_unlock(ctx.qc); | |
a954f761 | 3110 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 3111 | "connection already has a default stream"); |
8b7be3aa HL |
3112 | } |
3113 | ||
9cab4bd5 HL |
3114 | /* |
3115 | * It is a caller error for the XSO being attached as a default XSO to have | |
3116 | * more than one ref. | |
3117 | */ | |
4eecc6aa | 3118 | if (!CRYPTO_GET_REF(&xso->ssl.references, &nref)) { |
9cab4bd5 | 3119 | quic_unlock(ctx.qc); |
a954f761 | 3120 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, |
8ee3ee10 | 3121 | "ref"); |
9cab4bd5 HL |
3122 | } |
3123 | ||
3124 | if (nref != 1) { | |
3125 | quic_unlock(ctx.qc); | |
a954f761 | 3126 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 TM |
3127 | "stream being attached must have " |
3128 | "only 1 reference"); | |
9cab4bd5 HL |
3129 | } |
3130 | ||
3131 | /* Caller's reference to the XSO is transferred to us. */ | |
8b7be3aa | 3132 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 | 3133 | qc_set_default_xso(ctx.qc, xso, /*touch=*/1); |
8b7be3aa HL |
3134 | |
3135 | quic_unlock(ctx.qc); | |
3136 | return 1; | |
19cb0887 HL |
3137 | } |
3138 | ||
8a90df34 | 3139 | /* |
83df44ae HL |
3140 | * SSL_set_incoming_stream_policy |
3141 | * ------------------------------ | |
8a90df34 | 3142 | */ |
995ff282 | 3143 | QUIC_NEEDS_LOCK |
83df44ae | 3144 | static int qc_get_effective_incoming_stream_policy(QUIC_CONNECTION *qc) |
995ff282 | 3145 | { |
83df44ae HL |
3146 | switch (qc->incoming_stream_policy) { |
3147 | case SSL_INCOMING_STREAM_POLICY_AUTO: | |
995ff282 HL |
3148 | if ((qc->default_xso == NULL && !qc->default_xso_created) |
3149 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
83df44ae | 3150 | return SSL_INCOMING_STREAM_POLICY_ACCEPT; |
995ff282 | 3151 | else |
83df44ae | 3152 | return SSL_INCOMING_STREAM_POLICY_REJECT; |
995ff282 HL |
3153 | |
3154 | default: | |
83df44ae | 3155 | return qc->incoming_stream_policy; |
995ff282 HL |
3156 | } |
3157 | } | |
3158 | ||
3159 | QUIC_NEEDS_LOCK | |
3160 | static void qc_update_reject_policy(QUIC_CONNECTION *qc) | |
3161 | { | |
83df44ae HL |
3162 | int policy = qc_get_effective_incoming_stream_policy(qc); |
3163 | int enable_reject = (policy == SSL_INCOMING_STREAM_POLICY_REJECT); | |
995ff282 HL |
3164 | |
3165 | ossl_quic_channel_set_incoming_stream_auto_reject(qc->ch, | |
3166 | enable_reject, | |
83df44ae | 3167 | qc->incoming_stream_aec); |
995ff282 HL |
3168 | } |
3169 | ||
cb68ce9f | 3170 | QUIC_TAKES_LOCK |
83df44ae HL |
3171 | int ossl_quic_set_incoming_stream_policy(SSL *s, int policy, |
3172 | uint64_t aec) | |
8a90df34 HL |
3173 | { |
3174 | int ret = 1; | |
3175 | QCTX ctx; | |
3176 | ||
56df4cf2 | 3177 | if (!expect_quic_conn_only(s, &ctx)) |
8a90df34 HL |
3178 | return 0; |
3179 | ||
3180 | quic_lock(ctx.qc); | |
3181 | ||
3182 | switch (policy) { | |
83df44ae HL |
3183 | case SSL_INCOMING_STREAM_POLICY_AUTO: |
3184 | case SSL_INCOMING_STREAM_POLICY_ACCEPT: | |
3185 | case SSL_INCOMING_STREAM_POLICY_REJECT: | |
3186 | ctx.qc->incoming_stream_policy = policy; | |
3187 | ctx.qc->incoming_stream_aec = aec; | |
8a90df34 HL |
3188 | break; |
3189 | ||
3190 | default: | |
a954f761 | 3191 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
8a90df34 HL |
3192 | ret = 0; |
3193 | break; | |
3194 | } | |
3195 | ||
995ff282 | 3196 | qc_update_reject_policy(ctx.qc); |
8a90df34 HL |
3197 | quic_unlock(ctx.qc); |
3198 | return ret; | |
3199 | } | |
3200 | ||
57eee469 HL |
3201 | /* |
3202 | * SSL_get_value, SSL_set_value | |
3203 | * ---------------------------- | |
3204 | */ | |
3205 | QUIC_TAKES_LOCK | |
3206 | static int qc_getset_idle_timeout(QCTX *ctx, uint32_t class_, | |
3207 | uint64_t *p_value_out, uint64_t *p_value_in) | |
3208 | { | |
3209 | int ret = 0; | |
39a387f4 | 3210 | uint64_t value_out = 0, value_in; |
57eee469 HL |
3211 | |
3212 | quic_lock(ctx->qc); | |
3213 | ||
3214 | switch (class_) { | |
3215 | case SSL_VALUE_CLASS_FEATURE_REQUEST: | |
3216 | value_out = ossl_quic_channel_get_max_idle_timeout_request(ctx->qc->ch); | |
3217 | ||
3218 | if (p_value_in != NULL) { | |
3219 | value_in = *p_value_in; | |
3220 | if (value_in > OSSL_QUIC_VLINT_MAX) { | |
3221 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_PASSED_INVALID_ARGUMENT, | |
3222 | NULL); | |
3223 | goto err; | |
3224 | } | |
3225 | ||
3226 | if (ossl_quic_channel_have_generated_transport_params(ctx->qc->ch)) { | |
3227 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_FEATURE_NOT_RENEGOTIABLE, | |
3228 | NULL); | |
3229 | goto err; | |
3230 | } | |
3231 | ||
3232 | ossl_quic_channel_set_max_idle_timeout_request(ctx->qc->ch, value_in); | |
3233 | } | |
3234 | break; | |
3235 | ||
3236 | case SSL_VALUE_CLASS_FEATURE_PEER_REQUEST: | |
3237 | case SSL_VALUE_CLASS_FEATURE_NEGOTIATED: | |
3238 | if (p_value_in != NULL) { | |
3239 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_UNSUPPORTED_CONFIG_VALUE_OP, | |
3240 | NULL); | |
3241 | goto err; | |
3242 | } | |
3243 | ||
3244 | if (!ossl_quic_channel_is_handshake_complete(ctx->qc->ch)) { | |
3245 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_FEATURE_NEGOTIATION_NOT_COMPLETE, | |
3246 | NULL); | |
3247 | goto err; | |
3248 | } | |
3249 | ||
3250 | value_out = (class_ == SSL_VALUE_CLASS_FEATURE_NEGOTIATED) | |
3251 | ? ossl_quic_channel_get_max_idle_timeout_actual(ctx->qc->ch) | |
3252 | : ossl_quic_channel_get_max_idle_timeout_peer_request(ctx->qc->ch); | |
3253 | break; | |
3254 | ||
3255 | default: | |
3256 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_UNSUPPORTED_CONFIG_VALUE_CLASS, | |
3257 | NULL); | |
3258 | goto err; | |
3259 | } | |
3260 | ||
3261 | ret = 1; | |
3262 | err: | |
3263 | quic_unlock(ctx->qc); | |
3264 | if (ret && p_value_out != NULL) | |
3265 | *p_value_out = value_out; | |
3266 | ||
3267 | return ret; | |
3268 | } | |
3269 | ||
3270 | QUIC_TAKES_LOCK | |
3271 | static int qc_get_stream_avail(QCTX *ctx, uint32_t class_, | |
3272 | int is_uni, int is_remote, | |
3273 | uint64_t *value) | |
3274 | { | |
3275 | int ret = 0; | |
3276 | ||
3277 | if (class_ != SSL_VALUE_CLASS_GENERIC) { | |
3278 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_UNSUPPORTED_CONFIG_VALUE_CLASS, | |
3279 | NULL); | |
3280 | return 0; | |
3281 | } | |
3282 | ||
3283 | quic_lock(ctx->qc); | |
3284 | ||
3285 | *value = is_remote | |
3286 | ? ossl_quic_channel_get_remote_stream_count_avail(ctx->qc->ch, is_uni) | |
3287 | : ossl_quic_channel_get_local_stream_count_avail(ctx->qc->ch, is_uni); | |
3288 | ||
3289 | ret = 1; | |
3290 | quic_unlock(ctx->qc); | |
3291 | return ret; | |
3292 | } | |
3293 | ||
3294 | QUIC_TAKES_LOCK | |
3295 | int ossl_quic_get_value_uint(SSL *s, uint32_t class_, uint32_t id, | |
3296 | uint64_t *value) | |
3297 | { | |
3298 | QCTX ctx; | |
3299 | ||
3300 | if (!expect_quic_conn_only(s, &ctx)) | |
3301 | return 0; | |
3302 | ||
99a5cfc1 HL |
3303 | if (value == NULL) |
3304 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, | |
3305 | ERR_R_PASSED_INVALID_ARGUMENT, NULL); | |
3306 | ||
57eee469 HL |
3307 | switch (id) { |
3308 | case SSL_VALUE_QUIC_IDLE_TIMEOUT: | |
3309 | return qc_getset_idle_timeout(&ctx, class_, value, NULL); | |
3310 | ||
3311 | case SSL_VALUE_QUIC_STREAM_BIDI_LOCAL_AVAIL: | |
3312 | return qc_get_stream_avail(&ctx, class_, /*uni=*/0, /*remote=*/0, value); | |
3313 | case SSL_VALUE_QUIC_STREAM_BIDI_REMOTE_AVAIL: | |
3314 | return qc_get_stream_avail(&ctx, class_, /*uni=*/0, /*remote=*/1, value); | |
3315 | case SSL_VALUE_QUIC_STREAM_UNI_LOCAL_AVAIL: | |
3316 | return qc_get_stream_avail(&ctx, class_, /*uni=*/1, /*remote=*/0, value); | |
3317 | case SSL_VALUE_QUIC_STREAM_UNI_REMOTE_AVAIL: | |
3318 | return qc_get_stream_avail(&ctx, class_, /*uni=*/1, /*remote=*/1, value); | |
3319 | ||
3320 | default: | |
3321 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, | |
3322 | SSL_R_UNSUPPORTED_CONFIG_VALUE, NULL); | |
3323 | } | |
3324 | ||
3325 | return 1; | |
3326 | } | |
3327 | ||
3328 | QUIC_TAKES_LOCK | |
3329 | int ossl_quic_set_value_uint(SSL *s, uint32_t class_, uint32_t id, | |
3330 | uint64_t value) | |
3331 | { | |
3332 | QCTX ctx; | |
3333 | ||
3334 | if (!expect_quic_conn_only(s, &ctx)) | |
3335 | return 0; | |
3336 | ||
3337 | switch (id) { | |
3338 | case SSL_VALUE_QUIC_IDLE_TIMEOUT: | |
3339 | return qc_getset_idle_timeout(&ctx, class_, NULL, &value); | |
3340 | ||
3341 | default: | |
3342 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, | |
3343 | SSL_R_UNSUPPORTED_CONFIG_VALUE, NULL); | |
3344 | } | |
3345 | ||
3346 | return 1; | |
3347 | } | |
3348 | ||
cb68ce9f HL |
3349 | /* |
3350 | * SSL_accept_stream | |
3351 | * ----------------- | |
3352 | */ | |
cb68ce9f | 3353 | struct wait_for_incoming_stream_args { |
faa3a180 | 3354 | QCTX *ctx; |
cb68ce9f HL |
3355 | QUIC_STREAM *qs; |
3356 | }; | |
3357 | ||
3358 | QUIC_NEEDS_LOCK | |
3359 | static int wait_for_incoming_stream(void *arg) | |
3360 | { | |
3361 | struct wait_for_incoming_stream_args *args = arg; | |
faa3a180 HL |
3362 | QUIC_CONNECTION *qc = args->ctx->qc; |
3363 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(qc->ch); | |
cb68ce9f | 3364 | |
6d6b3a03 | 3365 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { |
cb68ce9f | 3366 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 3367 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
cb68ce9f HL |
3368 | return -1; |
3369 | } | |
3370 | ||
3371 | args->qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
3372 | if (args->qs != NULL) | |
3373 | return 1; /* got a stream */ | |
3374 | ||
3375 | return 0; /* did not get a stream, keep trying */ | |
3376 | } | |
3377 | ||
3378 | QUIC_TAKES_LOCK | |
3379 | SSL *ossl_quic_accept_stream(SSL *s, uint64_t flags) | |
3380 | { | |
3381 | QCTX ctx; | |
3382 | int ret; | |
3383 | SSL *new_s = NULL; | |
3384 | QUIC_STREAM_MAP *qsm; | |
3385 | QUIC_STREAM *qs; | |
3386 | QUIC_XSO *xso; | |
90cecc40 | 3387 | OSSL_RTT_INFO rtt_info; |
cb68ce9f | 3388 | |
56df4cf2 | 3389 | if (!expect_quic_conn_only(s, &ctx)) |
cb68ce9f HL |
3390 | return NULL; |
3391 | ||
3392 | quic_lock(ctx.qc); | |
3393 | ||
83df44ae | 3394 | if (qc_get_effective_incoming_stream_policy(ctx.qc) |
8ee3ee10 | 3395 | == SSL_INCOMING_STREAM_POLICY_REJECT) { |
a954f761 | 3396 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, NULL); |
cb68ce9f | 3397 | goto out; |
8ee3ee10 | 3398 | } |
cb68ce9f HL |
3399 | |
3400 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
3401 | ||
3402 | qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
3403 | if (qs == NULL) { | |
3404 | if (qc_blocking_mode(ctx.qc) | |
3405 | && (flags & SSL_ACCEPT_STREAM_NO_BLOCK) == 0) { | |
3406 | struct wait_for_incoming_stream_args args; | |
3407 | ||
faa3a180 | 3408 | args.ctx = &ctx; |
cb68ce9f HL |
3409 | args.qs = NULL; |
3410 | ||
3411 | ret = block_until_pred(ctx.qc, wait_for_incoming_stream, &args, 0); | |
3412 | if (ret == 0) { | |
faa3a180 | 3413 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
cb68ce9f HL |
3414 | goto out; |
3415 | } else if (ret < 0 || args.qs == NULL) { | |
3416 | goto out; | |
3417 | } | |
3418 | ||
3419 | qs = args.qs; | |
3420 | } else { | |
3421 | goto out; | |
3422 | } | |
3423 | } | |
3424 | ||
3425 | xso = create_xso_from_stream(ctx.qc, qs); | |
3426 | if (xso == NULL) | |
3427 | goto out; | |
3428 | ||
90cecc40 HL |
3429 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(ctx.qc->ch), &rtt_info); |
3430 | ossl_quic_stream_map_remove_from_accept_queue(qsm, qs, | |
3431 | rtt_info.smoothed_rtt); | |
cb68ce9f HL |
3432 | new_s = &xso->ssl; |
3433 | ||
3434 | /* Calling this function inhibits default XSO autocreation. */ | |
995ff282 | 3435 | qc_touch_default_xso(ctx.qc); /* inhibits default XSO */ |
cb68ce9f HL |
3436 | |
3437 | out: | |
3438 | quic_unlock(ctx.qc); | |
3439 | return new_s; | |
3440 | } | |
3441 | ||
3442 | /* | |
3443 | * SSL_get_accept_stream_queue_len | |
3444 | * ------------------------------- | |
3445 | */ | |
3446 | QUIC_TAKES_LOCK | |
3447 | size_t ossl_quic_get_accept_stream_queue_len(SSL *s) | |
3448 | { | |
3449 | QCTX ctx; | |
3450 | size_t v; | |
3451 | ||
56df4cf2 | 3452 | if (!expect_quic_conn_only(s, &ctx)) |
cb68ce9f HL |
3453 | return 0; |
3454 | ||
3455 | quic_lock(ctx.qc); | |
3456 | ||
3457 | v = ossl_quic_stream_map_get_accept_queue_len(ossl_quic_channel_get_qsm(ctx.qc->ch)); | |
3458 | ||
3459 | quic_unlock(ctx.qc); | |
3460 | return v; | |
3461 | } | |
3462 | ||
c3a04ea2 HL |
3463 | /* |
3464 | * SSL_stream_reset | |
3465 | * ---------------- | |
3466 | */ | |
3467 | int ossl_quic_stream_reset(SSL *ssl, | |
3468 | const SSL_STREAM_RESET_ARGS *args, | |
3469 | size_t args_len) | |
3470 | { | |
3471 | QCTX ctx; | |
3472 | QUIC_STREAM_MAP *qsm; | |
3473 | QUIC_STREAM *qs; | |
3474 | uint64_t error_code; | |
e0bd2825 | 3475 | int ok, err; |
c3a04ea2 | 3476 | |
a954f761 | 3477 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/0, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3478 | return 0; |
3479 | ||
3480 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
3481 | qs = ctx.xso->stream; | |
3482 | error_code = (args != NULL ? args->quic_error_code : 0); | |
3483 | ||
1d547f8f HL |
3484 | if (!quic_validate_for_write(ctx.xso, &err)) { |
3485 | ok = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
3486 | goto err; | |
3487 | } | |
e0bd2825 | 3488 | |
2f018d14 | 3489 | ok = ossl_quic_stream_map_reset_stream_send_part(qsm, qs, error_code); |
c3a04ea2 | 3490 | |
1d547f8f | 3491 | err: |
c3a04ea2 | 3492 | quic_unlock(ctx.qc); |
2f018d14 | 3493 | return ok; |
c3a04ea2 HL |
3494 | } |
3495 | ||
3496 | /* | |
3497 | * SSL_get_stream_read_state | |
3498 | * ------------------------- | |
3499 | */ | |
3500 | static void quic_classify_stream(QUIC_CONNECTION *qc, | |
3501 | QUIC_STREAM *qs, | |
3502 | int is_write, | |
3503 | int *state, | |
3504 | uint64_t *app_error_code) | |
3505 | { | |
3506 | int local_init; | |
3507 | uint64_t final_size; | |
3508 | ||
3509 | local_init = (ossl_quic_stream_is_server_init(qs) == qc->as_server); | |
3510 | ||
3511 | if (app_error_code != NULL) | |
3512 | *app_error_code = UINT64_MAX; | |
3513 | else | |
3514 | app_error_code = &final_size; /* throw away value */ | |
3515 | ||
3516 | if (!ossl_quic_stream_is_bidi(qs) && local_init != is_write) { | |
3517 | /* | |
3518 | * Unidirectional stream and this direction of transmission doesn't | |
3519 | * exist. | |
3520 | */ | |
3521 | *state = SSL_STREAM_STATE_WRONG_DIR; | |
3522 | } else if (ossl_quic_channel_is_term_any(qc->ch)) { | |
3523 | /* Connection already closed. */ | |
3524 | *state = SSL_STREAM_STATE_CONN_CLOSED; | |
5ed3a435 | 3525 | } else if (!is_write && qs->recv_state == QUIC_RSTREAM_STATE_DATA_READ) { |
c3a04ea2 HL |
3526 | /* Application has read a FIN. */ |
3527 | *state = SSL_STREAM_STATE_FINISHED; | |
3528 | } else if ((!is_write && qs->stop_sending) | |
2f018d14 | 3529 | || (is_write && ossl_quic_stream_send_is_reset(qs))) { |
c3a04ea2 HL |
3530 | /* |
3531 | * Stream has been reset locally. FIN takes precedence over this for the | |
3532 | * read case as the application need not care if the stream is reset | |
3533 | * after a FIN has been successfully processed. | |
3534 | */ | |
3535 | *state = SSL_STREAM_STATE_RESET_LOCAL; | |
3536 | *app_error_code = !is_write | |
3537 | ? qs->stop_sending_aec | |
3538 | : qs->reset_stream_aec; | |
2f018d14 | 3539 | } else if ((!is_write && ossl_quic_stream_recv_is_reset(qs)) |
c3a04ea2 HL |
3540 | || (is_write && qs->peer_stop_sending)) { |
3541 | /* | |
3542 | * Stream has been reset remotely. */ | |
3543 | *state = SSL_STREAM_STATE_RESET_REMOTE; | |
3544 | *app_error_code = !is_write | |
3545 | ? qs->peer_reset_stream_aec | |
3546 | : qs->peer_stop_sending_aec; | |
3547 | } else if (is_write && ossl_quic_sstream_get_final_size(qs->sstream, | |
3548 | &final_size)) { | |
3549 | /* | |
3550 | * Stream has been finished. Stream reset takes precedence over this for | |
3551 | * the write case as peer may not have received all data. | |
3552 | */ | |
3553 | *state = SSL_STREAM_STATE_FINISHED; | |
3554 | } else { | |
3555 | /* Stream still healthy. */ | |
3556 | *state = SSL_STREAM_STATE_OK; | |
3557 | } | |
3558 | } | |
3559 | ||
3560 | static int quic_get_stream_state(SSL *ssl, int is_write) | |
3561 | { | |
3562 | QCTX ctx; | |
3563 | int state; | |
3564 | ||
a954f761 | 3565 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3566 | return SSL_STREAM_STATE_NONE; |
3567 | ||
3568 | quic_classify_stream(ctx.qc, ctx.xso->stream, is_write, &state, NULL); | |
3569 | quic_unlock(ctx.qc); | |
3570 | return state; | |
3571 | } | |
3572 | ||
3573 | int ossl_quic_get_stream_read_state(SSL *ssl) | |
3574 | { | |
3575 | return quic_get_stream_state(ssl, /*is_write=*/0); | |
3576 | } | |
3577 | ||
3578 | /* | |
3579 | * SSL_get_stream_write_state | |
3580 | * -------------------------- | |
3581 | */ | |
3582 | int ossl_quic_get_stream_write_state(SSL *ssl) | |
3583 | { | |
3584 | return quic_get_stream_state(ssl, /*is_write=*/1); | |
3585 | } | |
3586 | ||
3587 | /* | |
3588 | * SSL_get_stream_read_error_code | |
3589 | * ------------------------------ | |
3590 | */ | |
3591 | static int quic_get_stream_error_code(SSL *ssl, int is_write, | |
3592 | uint64_t *app_error_code) | |
3593 | { | |
3594 | QCTX ctx; | |
3595 | int state; | |
3596 | ||
a954f761 | 3597 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3598 | return -1; |
3599 | ||
3600 | quic_classify_stream(ctx.qc, ctx.xso->stream, /*is_write=*/0, | |
3601 | &state, app_error_code); | |
3602 | ||
3603 | quic_unlock(ctx.qc); | |
3604 | switch (state) { | |
3605 | case SSL_STREAM_STATE_FINISHED: | |
3606 | return 0; | |
3607 | case SSL_STREAM_STATE_RESET_LOCAL: | |
3608 | case SSL_STREAM_STATE_RESET_REMOTE: | |
3609 | return 1; | |
3610 | default: | |
3611 | return -1; | |
3612 | } | |
3613 | } | |
3614 | ||
3615 | int ossl_quic_get_stream_read_error_code(SSL *ssl, uint64_t *app_error_code) | |
3616 | { | |
3617 | return quic_get_stream_error_code(ssl, /*is_write=*/0, app_error_code); | |
3618 | } | |
3619 | ||
3620 | /* | |
3621 | * SSL_get_stream_write_error_code | |
3622 | * ------------------------------- | |
3623 | */ | |
3624 | int ossl_quic_get_stream_write_error_code(SSL *ssl, uint64_t *app_error_code) | |
3625 | { | |
3626 | return quic_get_stream_error_code(ssl, /*is_write=*/1, app_error_code); | |
3627 | } | |
3628 | ||
3415677e HL |
3629 | /* |
3630 | * Write buffer size mutation | |
3631 | * -------------------------- | |
3632 | */ | |
3633 | int ossl_quic_set_write_buffer_size(SSL *ssl, size_t size) | |
3634 | { | |
3635 | int ret = 0; | |
3636 | QCTX ctx; | |
3637 | ||
a954f761 | 3638 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
3415677e HL |
3639 | return 0; |
3640 | ||
96014840 | 3641 | if (!ossl_quic_stream_has_send(ctx.xso->stream)) { |
3415677e | 3642 | /* Called on a unidirectional receive-only stream - error. */ |
a954f761 | 3643 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, NULL); |
3415677e | 3644 | goto out; |
96014840 | 3645 | } |
3415677e HL |
3646 | |
3647 | if (!ossl_quic_stream_has_send_buffer(ctx.xso->stream)) { | |
3648 | /* | |
3649 | * If the stream has a send part but we have disposed of it because we | |
3650 | * no longer need it, this is a no-op. | |
3651 | */ | |
3652 | ret = 1; | |
3653 | goto out; | |
3654 | } | |
3655 | ||
96014840 | 3656 | if (!ossl_quic_sstream_set_buffer_size(ctx.xso->stream->sstream, size)) { |
a954f761 | 3657 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
3415677e | 3658 | goto out; |
96014840 | 3659 | } |
3415677e HL |
3660 | |
3661 | ret = 1; | |
3662 | ||
3663 | out: | |
3664 | quic_unlock(ctx.qc); | |
3665 | return ret; | |
3666 | } | |
3667 | ||
c3a04ea2 HL |
3668 | /* |
3669 | * SSL_get_conn_close_info | |
3670 | * ----------------------- | |
3671 | */ | |
3672 | int ossl_quic_get_conn_close_info(SSL *ssl, | |
3673 | SSL_CONN_CLOSE_INFO *info, | |
3674 | size_t info_len) | |
3675 | { | |
3676 | QCTX ctx; | |
3677 | const QUIC_TERMINATE_CAUSE *tc; | |
3678 | ||
56df4cf2 | 3679 | if (!expect_quic_conn_only(ssl, &ctx)) |
c3a04ea2 HL |
3680 | return -1; |
3681 | ||
3682 | tc = ossl_quic_channel_get_terminate_cause(ctx.qc->ch); | |
3683 | if (tc == NULL) | |
3684 | return 0; | |
3685 | ||
3686 | info->error_code = tc->error_code; | |
55abe748 | 3687 | info->frame_type = tc->frame_type; |
40c8c756 HL |
3688 | info->reason = tc->reason; |
3689 | info->reason_len = tc->reason_len; | |
7d9e447a HL |
3690 | info->flags = 0; |
3691 | if (!tc->remote) | |
016a80dc | 3692 | info->flags |= SSL_CONN_CLOSE_FLAG_LOCAL; |
7d9e447a HL |
3693 | if (!tc->app) |
3694 | info->flags |= SSL_CONN_CLOSE_FLAG_TRANSPORT; | |
c3a04ea2 HL |
3695 | return 1; |
3696 | } | |
3697 | ||
2525109f HL |
3698 | /* |
3699 | * SSL_key_update | |
3700 | * -------------- | |
3701 | */ | |
3702 | int ossl_quic_key_update(SSL *ssl, int update_type) | |
3703 | { | |
3704 | QCTX ctx; | |
3705 | ||
56df4cf2 | 3706 | if (!expect_quic_conn_only(ssl, &ctx)) |
2525109f HL |
3707 | return 0; |
3708 | ||
3709 | switch (update_type) { | |
3710 | case SSL_KEY_UPDATE_NOT_REQUESTED: | |
3711 | /* | |
3712 | * QUIC signals peer key update implicily by triggering a local | |
3713 | * spontaneous TXKU. Silently upgrade this to SSL_KEY_UPDATE_REQUESTED. | |
3714 | */ | |
3715 | case SSL_KEY_UPDATE_REQUESTED: | |
3716 | break; | |
3717 | ||
3718 | default: | |
a954f761 | 3719 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
2525109f HL |
3720 | return 0; |
3721 | } | |
3722 | ||
3723 | quic_lock(ctx.qc); | |
3724 | ||
3725 | /* Attempt to perform a TXKU. */ | |
3726 | if (!ossl_quic_channel_trigger_txku(ctx.qc->ch)) { | |
a954f761 | 3727 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_TOO_MANY_KEY_UPDATES, NULL); |
2525109f HL |
3728 | quic_unlock(ctx.qc); |
3729 | return 0; | |
3730 | } | |
3731 | ||
3732 | quic_unlock(ctx.qc); | |
3733 | return 1; | |
3734 | } | |
3735 | ||
3736 | /* | |
3737 | * SSL_get_key_update_type | |
3738 | * ----------------------- | |
3739 | */ | |
3740 | int ossl_quic_get_key_update_type(const SSL *s) | |
3741 | { | |
3742 | /* | |
3743 | * We always handle key updates immediately so a key update is never | |
3744 | * pending. | |
3745 | */ | |
3746 | return SSL_KEY_UPDATE_NONE; | |
3747 | } | |
3748 | ||
22d53c88 HL |
3749 | /* |
3750 | * QUIC Front-End I/O API: SSL_CTX Management | |
3751 | * ========================================== | |
3752 | */ | |
3753 | ||
3754 | long ossl_quic_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
3755 | { | |
3756 | switch (cmd) { | |
3757 | default: | |
8a1a6d6d | 3758 | return ssl3_ctx_ctrl(ctx, cmd, larg, parg); |
22d53c88 HL |
3759 | } |
3760 | } | |
3761 | ||
3762 | long ossl_quic_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
3763 | { | |
63dfde87 MC |
3764 | QCTX ctx; |
3765 | ||
56df4cf2 | 3766 | if (!expect_quic_conn_only(s, &ctx)) |
63dfde87 MC |
3767 | return 0; |
3768 | ||
3769 | switch (cmd) { | |
3770 | case SSL_CTRL_SET_MSG_CALLBACK: | |
5cf99b40 MC |
3771 | ossl_quic_channel_set_msg_callback(ctx.qc->ch, (ossl_msg_cb)fp, |
3772 | &ctx.qc->ssl); | |
63dfde87 MC |
3773 | /* This callback also needs to be set on the internal SSL object */ |
3774 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp);; | |
3775 | ||
3776 | default: | |
3777 | /* Probably a TLS related ctrl. Defer to our internal SSL object */ | |
3778 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp); | |
3779 | } | |
22d53c88 HL |
3780 | } |
3781 | ||
3782 | long ossl_quic_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
3783 | { | |
8a1a6d6d | 3784 | return ssl3_ctx_callback_ctrl(ctx, cmd, fp); |
22d53c88 HL |
3785 | } |
3786 | ||
3787 | int ossl_quic_renegotiate_check(SSL *ssl, int initok) | |
3788 | { | |
3789 | /* We never do renegotiation. */ | |
3790 | return 0; | |
3791 | } | |
3792 | ||
547ea588 MC |
3793 | const SSL_CIPHER *ossl_quic_get_cipher_by_char(const unsigned char *p) |
3794 | { | |
3795 | const SSL_CIPHER *ciph = ssl3_get_cipher_by_char(p); | |
3796 | ||
3797 | if ((ciph->algorithm2 & SSL_QUIC) == 0) | |
3798 | return NULL; | |
3799 | ||
3800 | return ciph; | |
3801 | } | |
3802 | ||
22d53c88 | 3803 | /* |
d518854c MC |
3804 | * These functions define the TLSv1.2 (and below) ciphers that are supported by |
3805 | * the SSL_METHOD. Since QUIC only supports TLSv1.3 we don't support any. | |
22d53c88 | 3806 | */ |
22d53c88 HL |
3807 | |
3808 | int ossl_quic_num_ciphers(void) | |
3809 | { | |
d518854c | 3810 | return 0; |
22d53c88 HL |
3811 | } |
3812 | ||
3813 | const SSL_CIPHER *ossl_quic_get_cipher(unsigned int u) | |
3814 | { | |
d518854c | 3815 | return NULL; |
d5ab48a1 | 3816 | } |
16f3b542 | 3817 | |
7757f5ef TM |
3818 | /* |
3819 | * SSL_get_shutdown() | |
3820 | * ------------------ | |
3821 | */ | |
3822 | int ossl_quic_get_shutdown(const SSL *s) | |
3823 | { | |
3824 | QCTX ctx; | |
3825 | int shut = 0; | |
3826 | ||
3827 | if (!expect_quic_conn_only(s, &ctx)) | |
3828 | return 0; | |
3829 | ||
3830 | if (ossl_quic_channel_is_term_any(ctx.qc->ch)) { | |
3831 | shut |= SSL_SENT_SHUTDOWN; | |
3832 | if (!ossl_quic_channel_is_closing(ctx.qc->ch)) | |
3833 | shut |= SSL_RECEIVED_SHUTDOWN; | |
3834 | } | |
3835 | ||
3836 | return shut; | |
3837 | } | |
3838 | ||
16f3b542 HL |
3839 | /* |
3840 | * Internal Testing APIs | |
3841 | * ===================== | |
3842 | */ | |
3843 | ||
3844 | QUIC_CHANNEL *ossl_quic_conn_get_channel(SSL *s) | |
3845 | { | |
3846 | QCTX ctx; | |
3847 | ||
56df4cf2 | 3848 | if (!expect_quic_conn_only(s, &ctx)) |
16f3b542 HL |
3849 | return NULL; |
3850 | ||
3851 | return ctx.qc->ch; | |
3852 | } | |
fb1a0bb9 HL |
3853 | |
3854 | int ossl_quic_set_diag_title(SSL_CTX *ctx, const char *title) | |
3855 | { | |
3856 | #ifndef OPENSSL_NO_QLOG | |
3857 | OPENSSL_free(ctx->qlog_title); | |
3858 | ctx->qlog_title = NULL; | |
3859 | ||
3860 | if (title == NULL) | |
3861 | return 1; | |
3862 | ||
3863 | if ((ctx->qlog_title = OPENSSL_strdup(title)) == NULL) | |
3864 | return 0; | |
3865 | #endif | |
3866 | ||
3867 | return 1; | |
3868 | } |