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Commit | Line | Data |
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99e1cc7b TM |
1 | /* |
2 | * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | #include <openssl/macros.h> | |
11 | #include <openssl/objects.h> | |
22d53c88 HL |
12 | #include <openssl/sslerr.h> |
13 | #include <crypto/rand.h> | |
99e1cc7b | 14 | #include "quic_local.h" |
2723d705 | 15 | #include "internal/quic_tls.h" |
22d53c88 HL |
16 | #include "internal/quic_rx_depack.h" |
17 | #include "internal/quic_error.h" | |
18 | #include "internal/time.h" | |
99e1cc7b | 19 | |
faa3a180 HL |
20 | typedef struct qctx_st QCTX; |
21 | ||
cb5c208b | 22 | static void aon_write_finish(QUIC_XSO *xso); |
23c04709 | 23 | static int create_channel(QUIC_CONNECTION *qc); |
21c80696 | 24 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs); |
faa3a180 HL |
25 | static int qc_try_create_default_xso_for_write(QCTX *ctx); |
26 | static int qc_wait_for_default_xso_for_read(QCTX *ctx); | |
8b7be3aa HL |
27 | static void quic_lock(QUIC_CONNECTION *qc); |
28 | static void quic_unlock(QUIC_CONNECTION *qc); | |
faa3a180 | 29 | static int quic_do_handshake(QCTX *ctx); |
995ff282 HL |
30 | static void qc_update_reject_policy(QUIC_CONNECTION *qc); |
31 | static void qc_touch_default_xso(QUIC_CONNECTION *qc); | |
32 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch); | |
9cab4bd5 HL |
33 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
34 | int touch, QUIC_XSO **old_xso); | |
faa3a180 | 35 | static SSL *quic_conn_stream_new(QCTX *ctx, uint64_t flags, int need_lock); |
abfe3d51 | 36 | static int quic_validate_for_write(QUIC_XSO *xso, int *err); |
6d6b3a03 | 37 | static int quic_mutation_allowed(QUIC_CONNECTION *qc, int req_active); |
51e671e2 HL |
38 | static int qc_blocking_mode(const QUIC_CONNECTION *qc); |
39 | static int xso_blocking_mode(const QUIC_XSO *xso); | |
22d53c88 HL |
40 | |
41 | /* | |
42 | * QUIC Front-End I/O API: Common Utilities | |
43 | * ======================================== | |
44 | */ | |
45 | ||
46 | /* | |
47 | * Block until a predicate is met. | |
48 | * | |
49 | * Precondition: Must have a channel. | |
d7b1fadd | 50 | * Precondition: Must hold channel lock (unchecked). |
22d53c88 | 51 | */ |
d7b1fadd | 52 | QUIC_NEEDS_LOCK |
22d53c88 HL |
53 | static int block_until_pred(QUIC_CONNECTION *qc, |
54 | int (*pred)(void *arg), void *pred_arg, | |
55 | uint32_t flags) | |
56 | { | |
57 | QUIC_REACTOR *rtor; | |
58 | ||
59 | assert(qc->ch != NULL); | |
60 | ||
cae02d2b HL |
61 | /* |
62 | * Any attempt to block auto-disables tick inhibition as otherwise we will | |
63 | * hang around forever. | |
64 | */ | |
65 | ossl_quic_channel_set_inhibit_tick(qc->ch, 0); | |
66 | ||
22d53c88 | 67 | rtor = ossl_quic_channel_get_reactor(qc->ch); |
c019e1ef | 68 | return ossl_quic_reactor_block_until_pred(rtor, pred, pred_arg, flags, |
4847599b | 69 | qc->mutex); |
22d53c88 HL |
70 | } |
71 | ||
e3e9794a HL |
72 | static OSSL_TIME get_time(QUIC_CONNECTION *qc) |
73 | { | |
74 | if (qc->override_now_cb != NULL) | |
75 | return qc->override_now_cb(qc->override_now_cb_arg); | |
76 | else | |
77 | return ossl_time_now(); | |
78 | } | |
79 | ||
80 | static OSSL_TIME get_time_cb(void *arg) | |
81 | { | |
82 | QUIC_CONNECTION *qc = arg; | |
83 | ||
84 | return get_time(qc); | |
85 | } | |
86 | ||
faa3a180 HL |
87 | /* |
88 | * QCTX is a utility structure which provides information we commonly wish to | |
89 | * unwrap upon an API call being dispatched to us, namely: | |
90 | * | |
91 | * - a pointer to the QUIC_CONNECTION (regardless of whether a QCSO or QSSO | |
92 | * was passed); | |
93 | * - a pointer to any applicable QUIC_XSO (e.g. if a QSSO was passed, or if | |
94 | * a QCSO with a default stream was passed); | |
95 | * - whether a QSSO was passed (xso == NULL must not be used to determine this | |
96 | * because it may be non-NULL when a QCSO is passed if that QCSO has a | |
a954f761 HL |
97 | * default stream); |
98 | * - whether we are in "I/O context", meaning that non-normal errors can | |
99 | * be reported via SSL_get_error() as well as via ERR. Functions such as | |
100 | * SSL_read(), SSL_write() and SSL_do_handshake() are "I/O context" | |
101 | * functions which are allowed to change the value returned by | |
102 | * SSL_get_error. However, other functions (including functions which call | |
103 | * SSL_do_handshake() implicitly) are not allowed to change the return value | |
104 | * of SSL_get_error. | |
faa3a180 HL |
105 | */ |
106 | struct qctx_st { | |
107 | QUIC_CONNECTION *qc; | |
108 | QUIC_XSO *xso; | |
a954f761 | 109 | int is_stream, in_io; |
faa3a180 HL |
110 | }; |
111 | ||
22d53c88 HL |
112 | /* |
113 | * Raise a 'normal' error, meaning one that can be reported via SSL_get_error() | |
faa3a180 HL |
114 | * rather than via ERR. Note that normal errors must always be raised while |
115 | * holding a lock. | |
22d53c88 | 116 | */ |
faa3a180 HL |
117 | QUIC_NEEDS_LOCK |
118 | static int quic_raise_normal_error(QCTX *ctx, | |
22d53c88 HL |
119 | int err) |
120 | { | |
faa3a180 HL |
121 | if (ctx->is_stream) |
122 | ctx->xso->last_error = err; | |
123 | else | |
124 | ctx->qc->last_error = err; | |
125 | ||
22d53c88 HL |
126 | return 0; |
127 | } | |
128 | ||
129 | /* | |
130 | * Raise a 'non-normal' error, meaning any error that is not reported via | |
131 | * SSL_get_error() and must be reported via ERR. | |
e88cdb8e HL |
132 | * |
133 | * qc should be provided if available. In exceptional circumstances when qc is | |
134 | * not known NULL may be passed. This should generally only happen when an | |
135 | * expect_...() function defined below fails, which generally indicates a | |
136 | * dispatch error or caller error. | |
faa3a180 HL |
137 | * |
138 | * ctx should be NULL if the connection lock is not held. | |
22d53c88 | 139 | */ |
a954f761 | 140 | static int quic_raise_non_normal_error(QCTX *ctx, |
22d53c88 HL |
141 | const char *file, |
142 | int line, | |
143 | const char *func, | |
144 | int reason, | |
145 | const char *fmt, | |
146 | ...) | |
147 | { | |
148 | va_list args; | |
149 | ||
faa3a180 | 150 | if (ctx != NULL) { |
a954f761 | 151 | if (ctx->in_io && ctx->is_stream && ctx->xso != NULL) |
faa3a180 | 152 | ctx->xso->last_error = SSL_ERROR_SSL; |
a954f761 | 153 | else if (ctx->in_io && !ctx->is_stream && ctx->qc != NULL) |
faa3a180 | 154 | ctx->qc->last_error = SSL_ERROR_SSL; |
9c3ea4e1 TM |
155 | |
156 | if (reason == SSL_R_PROTOCOL_IS_SHUTDOWN && ctx->qc != NULL) | |
157 | ossl_quic_channel_restore_err_state(ctx->qc->ch); | |
faa3a180 | 158 | } |
e88cdb8e | 159 | |
9c3ea4e1 TM |
160 | ERR_new(); |
161 | ERR_set_debug(file, line, func); | |
162 | ||
163 | va_start(args, fmt); | |
164 | ERR_vset_error(ERR_LIB_SSL, reason, fmt, args); | |
165 | va_end(args); | |
166 | ||
22d53c88 HL |
167 | return 0; |
168 | } | |
169 | ||
faa3a180 HL |
170 | #define QUIC_RAISE_NORMAL_ERROR(ctx, err) \ |
171 | quic_raise_normal_error((ctx), (err)) | |
22d53c88 | 172 | |
faa3a180 | 173 | #define QUIC_RAISE_NON_NORMAL_ERROR(ctx, reason, msg) \ |
a954f761 | 174 | quic_raise_non_normal_error((ctx), \ |
22d53c88 HL |
175 | OPENSSL_FILE, OPENSSL_LINE, \ |
176 | OPENSSL_FUNC, \ | |
177 | (reason), \ | |
178 | (msg)) | |
179 | ||
e88cdb8e HL |
180 | /* |
181 | * Given a QCSO or QSSO, initialises a QCTX, determining the contextually | |
182 | * applicable QUIC_CONNECTION pointer and, if applicable, QUIC_XSO pointer. | |
183 | * | |
184 | * After this returns 1, all fields of the passed QCTX are initialised. | |
185 | * Returns 0 on failure. This function is intended to be used to provide API | |
186 | * semantics and as such, it invokes QUIC_RAISE_NON_NORMAL_ERROR() on failure. | |
22d53c88 | 187 | */ |
e88cdb8e | 188 | static int expect_quic(const SSL *s, QCTX *ctx) |
22d53c88 | 189 | { |
e88cdb8e HL |
190 | QUIC_CONNECTION *qc; |
191 | QUIC_XSO *xso; | |
192 | ||
193 | ctx->qc = NULL; | |
194 | ctx->xso = NULL; | |
195 | ctx->is_stream = 0; | |
196 | ||
197 | if (s == NULL) | |
a954f761 | 198 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_PASSED_NULL_PARAMETER, NULL); |
22d53c88 | 199 | |
e88cdb8e HL |
200 | switch (s->type) { |
201 | case SSL_TYPE_QUIC_CONNECTION: | |
202 | qc = (QUIC_CONNECTION *)s; | |
203 | ctx->qc = qc; | |
cb5c208b | 204 | ctx->xso = qc->default_xso; |
e88cdb8e | 205 | ctx->is_stream = 0; |
a954f761 | 206 | ctx->in_io = 0; |
e88cdb8e HL |
207 | return 1; |
208 | ||
209 | case SSL_TYPE_QUIC_XSO: | |
210 | xso = (QUIC_XSO *)s; | |
cb5c208b | 211 | ctx->qc = xso->conn; |
e88cdb8e HL |
212 | ctx->xso = xso; |
213 | ctx->is_stream = 1; | |
a954f761 | 214 | ctx->in_io = 0; |
e88cdb8e HL |
215 | return 1; |
216 | ||
217 | default: | |
a954f761 | 218 | return QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
e88cdb8e HL |
219 | } |
220 | } | |
221 | ||
222 | /* | |
223 | * Like expect_quic(), but requires a QUIC_XSO be contextually available. In | |
224 | * other words, requires that the passed QSO be a QSSO or a QCSO with a default | |
225 | * stream. | |
21c80696 HL |
226 | * |
227 | * remote_init determines if we expect the default XSO to be remotely created or | |
228 | * not. If it is -1, do not instantiate a default XSO if one does not yet exist. | |
8b7be3aa HL |
229 | * |
230 | * Channel mutex is acquired and retained on success. | |
e88cdb8e | 231 | */ |
8b7be3aa HL |
232 | QUIC_ACQUIRES_LOCK |
233 | static int ossl_unused expect_quic_with_stream_lock(const SSL *s, int remote_init, | |
a954f761 | 234 | int in_io, QCTX *ctx) |
e88cdb8e HL |
235 | { |
236 | if (!expect_quic(s, ctx)) | |
237 | return 0; | |
238 | ||
a954f761 | 239 | ctx->in_io = in_io; |
8b7be3aa HL |
240 | quic_lock(ctx->qc); |
241 | ||
21c80696 | 242 | if (ctx->xso == NULL && remote_init >= 0) { |
6d6b3a03 | 243 | if (!quic_mutation_allowed(ctx->qc, /*req_active=*/0)) { |
faa3a180 | 244 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
8b7be3aa HL |
245 | goto err; |
246 | } | |
247 | ||
248 | /* If we haven't finished the handshake, try to advance it. */ | |
faa3a180 | 249 | if (quic_do_handshake(ctx) < 1) |
8b7be3aa HL |
250 | /* ossl_quic_do_handshake raised error here */ |
251 | goto err; | |
252 | ||
253 | if (remote_init == 0) { | |
faa3a180 | 254 | if (!qc_try_create_default_xso_for_write(ctx)) |
8b7be3aa HL |
255 | goto err; |
256 | } else { | |
faa3a180 | 257 | if (!qc_wait_for_default_xso_for_read(ctx)) |
8b7be3aa HL |
258 | goto err; |
259 | } | |
260 | ||
21c80696 HL |
261 | ctx->xso = ctx->qc->default_xso; |
262 | } | |
263 | ||
8b7be3aa | 264 | if (ctx->xso == NULL) { |
a954f761 | 265 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
8b7be3aa HL |
266 | goto err; |
267 | } | |
268 | ||
23406e30 | 269 | return 1; /* coverity[missing_unlock]: lock held */ |
e88cdb8e | 270 | |
8b7be3aa HL |
271 | err: |
272 | quic_unlock(ctx->qc); | |
273 | return 0; | |
e88cdb8e | 274 | } |
22d53c88 | 275 | |
e88cdb8e HL |
276 | /* |
277 | * Like expect_quic(), but fails if called on a QUIC_XSO. ctx->xso may still | |
278 | * be non-NULL if the QCSO has a default stream. | |
279 | */ | |
a954f761 | 280 | static int ossl_unused expect_quic_conn_only(const SSL *s, int in_io, QCTX *ctx) |
e88cdb8e HL |
281 | { |
282 | if (!expect_quic(s, ctx)) | |
283 | return 0; | |
284 | ||
a954f761 | 285 | ctx->in_io = in_io; |
e88cdb8e | 286 | if (ctx->is_stream) |
a954f761 | 287 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_CONN_USE_ONLY, NULL); |
e88cdb8e HL |
288 | |
289 | return 1; | |
22d53c88 HL |
290 | } |
291 | ||
4847599b HL |
292 | /* |
293 | * Ensures that the channel mutex is held for a method which touches channel | |
294 | * state. | |
295 | * | |
296 | * Precondition: Channel mutex is not held (unchecked) | |
297 | */ | |
20f45743 | 298 | static void quic_lock(QUIC_CONNECTION *qc) |
4847599b | 299 | { |
629b408c | 300 | #if defined(OPENSSL_THREADS) |
ffce2946 | 301 | ossl_crypto_mutex_lock(qc->mutex); |
629b408c | 302 | #endif |
4847599b HL |
303 | } |
304 | ||
305 | /* Precondition: Channel mutex is held (unchecked) */ | |
306 | QUIC_NEEDS_LOCK | |
307 | static void quic_unlock(QUIC_CONNECTION *qc) | |
308 | { | |
629b408c | 309 | #if defined(OPENSSL_THREADS) |
ffce2946 | 310 | ossl_crypto_mutex_unlock(qc->mutex); |
629b408c | 311 | #endif |
4847599b HL |
312 | } |
313 | ||
6d6b3a03 HL |
314 | /* |
315 | * This predicate is the criterion which should determine API call rejection for | |
316 | * *most* mutating API calls, particularly stream-related operations for send | |
317 | * parts. | |
318 | * | |
319 | * A call is rejected (this function returns 0) if shutdown is in progress | |
320 | * (stream flushing), or we are in a TERMINATING or TERMINATED state. If | |
321 | * req_active=1, the connection must be active (i.e., the IDLE state is also | |
322 | * rejected). | |
323 | */ | |
324 | static int quic_mutation_allowed(QUIC_CONNECTION *qc, int req_active) | |
325 | { | |
326 | if (qc->shutting_down || ossl_quic_channel_is_term_any(qc->ch)) | |
327 | return 0; | |
328 | ||
329 | if (req_active && !ossl_quic_channel_is_active(qc->ch)) | |
330 | return 0; | |
331 | ||
332 | return 1; | |
333 | } | |
4847599b | 334 | |
22d53c88 HL |
335 | /* |
336 | * QUIC Front-End I/O API: Initialization | |
337 | * ====================================== | |
338 | * | |
339 | * SSL_new => ossl_quic_new | |
340 | * ossl_quic_init | |
341 | * SSL_reset => ossl_quic_reset | |
342 | * SSL_clear => ossl_quic_clear | |
343 | * ossl_quic_deinit | |
344 | * SSL_free => ossl_quic_free | |
345 | * | |
f0d9757c HL |
346 | * SSL_set_options => ossl_quic_set_options |
347 | * SSL_get_options => ossl_quic_get_options | |
348 | * SSL_clear_options => ossl_quic_clear_options | |
349 | * | |
22d53c88 HL |
350 | */ |
351 | ||
352 | /* SSL_new */ | |
38b051a1 TM |
353 | SSL *ossl_quic_new(SSL_CTX *ctx) |
354 | { | |
22d53c88 HL |
355 | QUIC_CONNECTION *qc = NULL; |
356 | SSL *ssl_base = NULL; | |
a7f41885 | 357 | SSL_CONNECTION *sc = NULL; |
38b051a1 TM |
358 | |
359 | qc = OPENSSL_zalloc(sizeof(*qc)); | |
8ee3ee10 | 360 | if (qc == NULL) { |
a954f761 | 361 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_CRYPTO_LIB, NULL); |
38b051a1 | 362 | goto err; |
8ee3ee10 | 363 | } |
38b051a1 | 364 | |
22d53c88 HL |
365 | /* Initialise the QUIC_CONNECTION's stub header. */ |
366 | ssl_base = &qc->ssl; | |
a7f41885 | 367 | if (!ossl_ssl_init(ssl_base, ctx, ctx->method, SSL_TYPE_QUIC_CONNECTION)) { |
22d53c88 | 368 | ssl_base = NULL; |
a954f761 | 369 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
38b051a1 TM |
370 | goto err; |
371 | } | |
38b051a1 | 372 | |
4e3a55fd | 373 | qc->tls = ossl_ssl_connection_new_int(ctx, TLS_method()); |
8ee3ee10 | 374 | if (qc->tls == NULL || (sc = SSL_CONNECTION_FROM_SSL(qc->tls)) == NULL) { |
a954f761 | 375 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
8ee3ee10 TM |
376 | goto err; |
377 | } | |
f0d9757c | 378 | |
43788fb3 | 379 | /* override the user_ssl of the inner connection */ |
f082205b | 380 | sc->s3.flags |= TLS1_FLAGS_QUIC; |
a7f41885 | 381 | |
f0d9757c | 382 | /* Restrict options derived from the SSL_CTX. */ |
db2f98c4 | 383 | sc->options &= OSSL_QUIC_PERMITTED_OPTIONS_CONN; |
6e5550a1 | 384 | sc->pha_enabled = 0; |
f0d9757c | 385 | |
629b408c | 386 | #if defined(OPENSSL_THREADS) |
8ee3ee10 | 387 | if ((qc->mutex = ossl_crypto_mutex_new()) == NULL) { |
a954f761 | 388 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_CRYPTO_LIB, NULL); |
4847599b | 389 | goto err; |
8ee3ee10 | 390 | } |
629b408c | 391 | #endif |
4847599b | 392 | |
629b408c | 393 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
f2f7c4f1 HL |
394 | qc->is_thread_assisted |
395 | = (ssl_base->method == OSSL_QUIC_client_thread_method()); | |
629b408c | 396 | #endif |
f2f7c4f1 | 397 | |
44cb36d0 | 398 | qc->as_server = 0; /* TODO(QUIC SERVER): add server support */ |
dfb9ae14 HL |
399 | qc->as_server_state = qc->as_server; |
400 | ||
8b7be3aa | 401 | qc->default_stream_mode = SSL_DEFAULT_STREAM_MODE_AUTO_BIDI; |
21c80696 | 402 | qc->default_ssl_mode = qc->ssl.ctx->mode; |
db2f98c4 | 403 | qc->default_ssl_options = qc->ssl.ctx->options & OSSL_QUIC_PERMITTED_OPTIONS; |
51e671e2 HL |
404 | qc->desires_blocking = 1; |
405 | qc->blocking = 0; | |
83df44ae | 406 | qc->incoming_stream_policy = SSL_INCOMING_STREAM_POLICY_AUTO; |
21c80696 | 407 | qc->last_error = SSL_ERROR_NONE; |
a7f41885 | 408 | |
23c04709 HL |
409 | if (!create_channel(qc)) |
410 | goto err; | |
411 | ||
5cf99b40 MC |
412 | ossl_quic_channel_set_msg_callback(qc->ch, ctx->msg_callback, ssl_base); |
413 | ossl_quic_channel_set_msg_callback_arg(qc->ch, ctx->msg_callback_arg); | |
414 | ||
995ff282 HL |
415 | qc_update_reject_policy(qc); |
416 | ||
21c80696 HL |
417 | /* |
418 | * We do not create the default XSO yet. The reason for this is that the | |
419 | * stream ID of the default XSO will depend on whether the stream is client | |
420 | * or server-initiated, which depends on who transmits first. Since we do | |
421 | * not know whether the application will be using a client-transmits-first | |
422 | * or server-transmits-first protocol, we defer default XSO creation until | |
423 | * the client calls SSL_read() or SSL_write(). If it calls SSL_read() first, | |
424 | * we take that as a cue that the client is expecting a server-initiated | |
425 | * stream, and vice versa if SSL_write() is called first. | |
426 | */ | |
22d53c88 HL |
427 | return ssl_base; |
428 | ||
38b051a1 | 429 | err: |
2dbc39de | 430 | if (qc != NULL) { |
629b408c HL |
431 | #if defined(OPENSSL_THREADS) |
432 | ossl_crypto_mutex_free(qc->mutex); | |
433 | #endif | |
2dbc39de HL |
434 | ossl_quic_channel_free(qc->ch); |
435 | SSL_free(qc->tls); | |
436 | } | |
22d53c88 | 437 | OPENSSL_free(qc); |
38b051a1 TM |
438 | return NULL; |
439 | } | |
440 | ||
22d53c88 | 441 | /* SSL_free */ |
a8489257 | 442 | QUIC_TAKES_LOCK |
22d53c88 HL |
443 | void ossl_quic_free(SSL *s) |
444 | { | |
072328dd | 445 | QCTX ctx; |
9cab4bd5 | 446 | int is_default; |
22d53c88 | 447 | |
072328dd HL |
448 | /* We should never be called on anything but a QSO. */ |
449 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
450 | return; |
451 | ||
22b1a96f HL |
452 | quic_lock(ctx.qc); |
453 | ||
2dbc39de HL |
454 | if (ctx.is_stream) { |
455 | /* | |
456 | * When a QSSO is freed, the XSO is freed immediately, because the XSO | |
457 | * itself only contains API personality layer data. However the | |
458 | * underlying QUIC_STREAM is not freed immediately but is instead marked | |
459 | * as deleted for later collection. | |
460 | */ | |
461 | ||
2dbc39de HL |
462 | assert(ctx.qc->num_xso > 0); |
463 | --ctx.qc->num_xso; | |
464 | ||
9aaafc26 | 465 | /* If a stream's send part has not been finished, auto-reset it. */ |
2f018d14 HL |
466 | if (( ctx.xso->stream->send_state == QUIC_SSTREAM_STATE_READY |
467 | || ctx.xso->stream->send_state == QUIC_SSTREAM_STATE_SEND) | |
9aaafc26 HL |
468 | && !ossl_quic_sstream_get_final_size(ctx.xso->stream->sstream, NULL)) |
469 | ossl_quic_stream_map_reset_stream_send_part(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
470 | ctx.xso->stream, 0); | |
2dbc39de | 471 | |
9aaafc26 | 472 | /* Do STOP_SENDING for the receive part, if applicable. */ |
2f018d14 HL |
473 | if ( ctx.xso->stream->recv_state == QUIC_RSTREAM_STATE_RECV |
474 | || ctx.xso->stream->recv_state == QUIC_RSTREAM_STATE_SIZE_KNOWN) | |
9aaafc26 HL |
475 | ossl_quic_stream_map_stop_sending_recv_part(ossl_quic_channel_get_qsm(ctx.qc->ch), |
476 | ctx.xso->stream, 0); | |
f20fdd16 HL |
477 | |
478 | /* Update stream state. */ | |
9aaafc26 HL |
479 | ctx.xso->stream->deleted = 1; |
480 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(ctx.qc->ch), | |
f20fdd16 HL |
481 | ctx.xso->stream); |
482 | ||
9cab4bd5 | 483 | is_default = (ctx.xso == ctx.qc->default_xso); |
2dbc39de HL |
484 | quic_unlock(ctx.qc); |
485 | ||
9cab4bd5 HL |
486 | /* |
487 | * Unref the connection in most cases; the XSO has a ref to the QC and | |
488 | * not vice versa. But for a default XSO, to avoid circular references, | |
489 | * the QC refs the XSO but the XSO does not ref the QC. If we are the | |
490 | * default XSO, we only get here when the QC is being torn down anyway, | |
491 | * so don't call SSL_free(qc) as we are already in it. | |
492 | */ | |
493 | if (!is_default) | |
494 | SSL_free(&ctx.qc->ssl); | |
495 | ||
2dbc39de HL |
496 | /* Note: SSL_free calls OPENSSL_free(xso) for us */ |
497 | return; | |
498 | } | |
499 | ||
2dbc39de HL |
500 | /* |
501 | * Free the default XSO, if any. The QUIC_STREAM is not deleted at this | |
502 | * stage, but is freed during the channel free when the whole QSM is freed. | |
503 | */ | |
21c80696 HL |
504 | if (ctx.qc->default_xso != NULL) { |
505 | QUIC_XSO *xso = ctx.qc->default_xso; | |
506 | ||
507 | quic_unlock(ctx.qc); | |
508 | SSL_free(&xso->ssl); | |
509 | quic_lock(ctx.qc); | |
9cab4bd5 | 510 | ctx.qc->default_xso = NULL; |
21c80696 | 511 | } |
2dbc39de HL |
512 | |
513 | /* Ensure we have no remaining XSOs. */ | |
514 | assert(ctx.qc->num_xso == 0); | |
515 | ||
629b408c | 516 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
072328dd HL |
517 | if (ctx.qc->is_thread_assisted && ctx.qc->started) { |
518 | ossl_quic_thread_assist_wait_stopped(&ctx.qc->thread_assist); | |
519 | ossl_quic_thread_assist_cleanup(&ctx.qc->thread_assist); | |
dbe7b51a | 520 | } |
629b408c | 521 | #endif |
f2f7c4f1 | 522 | |
072328dd | 523 | ossl_quic_channel_free(ctx.qc->ch); |
22d53c88 | 524 | |
072328dd HL |
525 | BIO_free(ctx.qc->net_rbio); |
526 | BIO_free(ctx.qc->net_wbio); | |
d1ac77b1 | 527 | |
22d53c88 | 528 | /* Note: SSL_free calls OPENSSL_free(qc) for us */ |
a7f41885 | 529 | |
072328dd | 530 | SSL_free(ctx.qc->tls); |
45b7c7e0 | 531 | quic_unlock(ctx.qc); /* tsan doesn't like freeing locked mutexes */ |
629b408c | 532 | #if defined(OPENSSL_THREADS) |
45b7c7e0 | 533 | ossl_crypto_mutex_free(&ctx.qc->mutex); |
629b408c | 534 | #endif |
22d53c88 HL |
535 | } |
536 | ||
537 | /* SSL method init */ | |
38b051a1 | 538 | int ossl_quic_init(SSL *s) |
99e1cc7b | 539 | { |
22d53c88 HL |
540 | /* Same op as SSL_clear, forward the call. */ |
541 | return ossl_quic_clear(s); | |
99e1cc7b TM |
542 | } |
543 | ||
22d53c88 | 544 | /* SSL method deinit */ |
38b051a1 TM |
545 | void ossl_quic_deinit(SSL *s) |
546 | { | |
22d53c88 | 547 | /* No-op. */ |
38b051a1 TM |
548 | } |
549 | ||
5f69db39 | 550 | /* SSL_clear (ssl_reset method) */ |
22d53c88 HL |
551 | int ossl_quic_reset(SSL *s) |
552 | { | |
072328dd | 553 | QCTX ctx; |
22d53c88 | 554 | |
072328dd | 555 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
556 | return 0; |
557 | ||
96014840 | 558 | ERR_raise(ERR_LIB_SSL, ERR_R_UNSUPPORTED); |
5f69db39 | 559 | return 0; |
22d53c88 HL |
560 | } |
561 | ||
5f69db39 | 562 | /* ssl_clear method (unused) */ |
22d53c88 | 563 | int ossl_quic_clear(SSL *s) |
99e1cc7b | 564 | { |
072328dd | 565 | QCTX ctx; |
38b051a1 | 566 | |
072328dd | 567 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
568 | return 0; |
569 | ||
44cb36d0 | 570 | /* TODO(QUIC FUTURE): Currently a no-op. */ |
22d53c88 HL |
571 | return 1; |
572 | } | |
38b051a1 | 573 | |
e3e9794a HL |
574 | int ossl_quic_conn_set_override_now_cb(SSL *s, |
575 | OSSL_TIME (*now_cb)(void *arg), | |
576 | void *now_cb_arg) | |
b212d554 | 577 | { |
072328dd | 578 | QCTX ctx; |
b212d554 | 579 | |
072328dd | 580 | if (!expect_quic(s, &ctx)) |
e3e9794a HL |
581 | return 0; |
582 | ||
583 | quic_lock(ctx.qc); | |
072328dd HL |
584 | |
585 | ctx.qc->override_now_cb = now_cb; | |
586 | ctx.qc->override_now_cb_arg = now_cb_arg; | |
e3e9794a HL |
587 | |
588 | quic_unlock(ctx.qc); | |
589 | return 1; | |
b212d554 HL |
590 | } |
591 | ||
3b1ab5a3 HL |
592 | void ossl_quic_conn_force_assist_thread_wake(SSL *s) |
593 | { | |
072328dd HL |
594 | QCTX ctx; |
595 | ||
596 | if (!expect_quic(s, &ctx)) | |
597 | return; | |
3b1ab5a3 | 598 | |
629b408c | 599 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
072328dd HL |
600 | if (ctx.qc->is_thread_assisted && ctx.qc->started) |
601 | ossl_quic_thread_assist_notify_deadline_changed(&ctx.qc->thread_assist); | |
629b408c | 602 | #endif |
3b1ab5a3 HL |
603 | } |
604 | ||
995ff282 HL |
605 | QUIC_NEEDS_LOCK |
606 | static void qc_touch_default_xso(QUIC_CONNECTION *qc) | |
607 | { | |
608 | qc->default_xso_created = 1; | |
609 | qc_update_reject_policy(qc); | |
610 | } | |
611 | ||
9cab4bd5 HL |
612 | /* |
613 | * Changes default XSO. Allows caller to keep reference to the old default XSO | |
614 | * (if any). Reference to new XSO is transferred from caller. | |
615 | */ | |
995ff282 | 616 | QUIC_NEEDS_LOCK |
9cab4bd5 HL |
617 | static void qc_set_default_xso_keep_ref(QUIC_CONNECTION *qc, QUIC_XSO *xso, |
618 | int touch, | |
619 | QUIC_XSO **old_xso) | |
995ff282 | 620 | { |
9cab4bd5 HL |
621 | int refs; |
622 | ||
623 | *old_xso = NULL; | |
624 | ||
625 | if (qc->default_xso != xso) { | |
626 | *old_xso = qc->default_xso; /* transfer old XSO ref to caller */ | |
627 | ||
628 | qc->default_xso = xso; | |
629 | ||
630 | if (xso == NULL) { | |
631 | /* | |
632 | * Changing to not having a default XSO. XSO becomes standalone and | |
633 | * now has a ref to the QC. | |
634 | */ | |
635 | if (!ossl_assert(SSL_up_ref(&qc->ssl))) | |
636 | return; | |
637 | } else { | |
638 | /* | |
639 | * Changing from not having a default XSO to having one. The new XSO | |
640 | * will have had a reference to the QC we need to drop to avoid a | |
641 | * circular reference. | |
3a61a96c HL |
642 | * |
643 | * Currently we never change directly from one default XSO to | |
644 | * another, though this function would also still be correct if this | |
645 | * weren't the case. | |
9cab4bd5 | 646 | */ |
3a61a96c HL |
647 | assert(*old_xso == NULL); |
648 | ||
4eecc6aa | 649 | CRYPTO_DOWN_REF(&qc->ssl.references, &refs); |
9cab4bd5 HL |
650 | assert(refs > 0); |
651 | } | |
652 | } | |
653 | ||
995ff282 HL |
654 | if (touch) |
655 | qc_touch_default_xso(qc); | |
656 | } | |
657 | ||
9cab4bd5 HL |
658 | /* |
659 | * Changes default XSO, releasing the reference to any previous default XSO. | |
660 | * Reference to new XSO is transferred from caller. | |
661 | */ | |
662 | QUIC_NEEDS_LOCK | |
663 | static void qc_set_default_xso(QUIC_CONNECTION *qc, QUIC_XSO *xso, int touch) | |
664 | { | |
665 | QUIC_XSO *old_xso = NULL; | |
666 | ||
667 | qc_set_default_xso_keep_ref(qc, xso, touch, &old_xso); | |
668 | ||
669 | if (old_xso != NULL) | |
670 | SSL_free(&old_xso->ssl); | |
671 | } | |
672 | ||
db2f98c4 HL |
673 | QUIC_NEEDS_LOCK |
674 | static void xso_update_options(QUIC_XSO *xso) | |
675 | { | |
676 | int cleanse = ((xso->ssl_options & SSL_OP_CLEANSE_PLAINTEXT) != 0); | |
677 | ||
678 | if (xso->stream->rstream != NULL) | |
679 | ossl_quic_rstream_set_cleanse(xso->stream->rstream, cleanse); | |
680 | ||
681 | if (xso->stream->sstream != NULL) | |
682 | ossl_quic_sstream_set_cleanse(xso->stream->sstream, cleanse); | |
683 | } | |
684 | ||
685 | /* | |
686 | * SSL_set_options | |
687 | * --------------- | |
688 | * | |
689 | * Setting options on a QCSO | |
690 | * - configures the handshake-layer options; | |
691 | * - configures the default data-plane options for new streams; | |
692 | * - configures the data-plane options on the default XSO, if there is one. | |
693 | * | |
694 | * Setting options on a QSSO | |
695 | * - configures data-plane options for that stream only. | |
696 | */ | |
d6e7ebba | 697 | QUIC_TAKES_LOCK |
f0d9757c HL |
698 | static uint64_t quic_mask_or_options(SSL *ssl, uint64_t mask_value, uint64_t or_value) |
699 | { | |
700 | QCTX ctx; | |
db2f98c4 | 701 | uint64_t hs_mask_value, hs_or_value, ret; |
f0d9757c | 702 | |
d6e7ebba | 703 | if (!expect_quic(ssl, &ctx)) |
f0d9757c HL |
704 | return 0; |
705 | ||
d6e7ebba HL |
706 | quic_lock(ctx.qc); |
707 | ||
db2f98c4 HL |
708 | if (!ctx.is_stream) { |
709 | /* | |
710 | * If we were called on the connection, we apply any handshake option | |
711 | * changes. | |
712 | */ | |
713 | hs_mask_value = (mask_value & OSSL_QUIC_PERMITTED_OPTIONS_CONN); | |
714 | hs_or_value = (or_value & OSSL_QUIC_PERMITTED_OPTIONS_CONN); | |
f0d9757c | 715 | |
db2f98c4 HL |
716 | SSL_clear_options(ctx.qc->tls, hs_mask_value); |
717 | SSL_set_options(ctx.qc->tls, hs_or_value); | |
d6e7ebba | 718 | |
db2f98c4 HL |
719 | /* Update defaults for new streams. */ |
720 | ctx.qc->default_ssl_options | |
721 | = ((ctx.qc->default_ssl_options & ~mask_value) | or_value) | |
722 | & OSSL_QUIC_PERMITTED_OPTIONS; | |
723 | } | |
18ca1c8f | 724 | |
db2f98c4 HL |
725 | if (ctx.xso != NULL) { |
726 | ctx.xso->ssl_options | |
727 | = ((ctx.xso->ssl_options & ~mask_value) | or_value) | |
728 | & OSSL_QUIC_PERMITTED_OPTIONS_STREAM; | |
729 | ||
730 | xso_update_options(ctx.xso); | |
18ca1c8f | 731 | } |
f0d9757c | 732 | |
db2f98c4 HL |
733 | ret = ctx.is_stream ? ctx.xso->ssl_options : ctx.qc->default_ssl_options; |
734 | ||
f0d9757c | 735 | quic_unlock(ctx.qc); |
db2f98c4 | 736 | return ret; |
f0d9757c HL |
737 | } |
738 | ||
739 | uint64_t ossl_quic_set_options(SSL *ssl, uint64_t options) | |
740 | { | |
d6e7ebba | 741 | return quic_mask_or_options(ssl, 0, options); |
f0d9757c HL |
742 | } |
743 | ||
744 | /* SSL_clear_options */ | |
745 | uint64_t ossl_quic_clear_options(SSL *ssl, uint64_t options) | |
746 | { | |
747 | return quic_mask_or_options(ssl, options, 0); | |
748 | } | |
749 | ||
750 | /* SSL_get_options */ | |
751 | uint64_t ossl_quic_get_options(const SSL *ssl) | |
752 | { | |
753 | return quic_mask_or_options((SSL *)ssl, 0, 0); | |
754 | } | |
755 | ||
22d53c88 HL |
756 | /* |
757 | * QUIC Front-End I/O API: Network BIO Configuration | |
758 | * ================================================= | |
759 | * | |
760 | * Handling the different BIOs is difficult: | |
761 | * | |
762 | * - It is more or less a requirement that we use non-blocking network I/O; | |
763 | * we need to be able to have timeouts on recv() calls, and make best effort | |
764 | * (non blocking) send() and recv() calls. | |
765 | * | |
766 | * The only sensible way to do this is to configure the socket into | |
767 | * non-blocking mode. We could try to do select() before calling send() or | |
768 | * recv() to get a guarantee that the call will not block, but this will | |
769 | * probably run into issues with buggy OSes which generate spurious socket | |
770 | * readiness events. In any case, relying on this to work reliably does not | |
771 | * seem sane. | |
772 | * | |
773 | * Timeouts could be handled via setsockopt() socket timeout options, but | |
774 | * this depends on OS support and adds another syscall to every network I/O | |
775 | * operation. It also has obvious thread safety concerns if we want to move | |
776 | * to concurrent use of a single socket at some later date. | |
777 | * | |
778 | * Some OSes support a MSG_DONTWAIT flag which allows a single I/O option to | |
779 | * be made non-blocking. However some OSes (e.g. Windows) do not support | |
780 | * this, so we cannot rely on this. | |
781 | * | |
782 | * As such, we need to configure any FD in non-blocking mode. This may | |
783 | * confound users who pass a blocking socket to libssl. However, in practice | |
784 | * it would be extremely strange for a user of QUIC to pass an FD to us, | |
785 | * then also try and send receive traffic on the same socket(!). Thus the | |
786 | * impact of this should be limited, and can be documented. | |
787 | * | |
788 | * - We support both blocking and non-blocking operation in terms of the API | |
789 | * presented to the user. One prospect is to set the blocking mode based on | |
790 | * whether the socket passed to us was already in blocking mode. However, | |
791 | * Windows has no API for determining if a socket is in blocking mode (!), | |
792 | * therefore this cannot be done portably. Currently therefore we expose an | |
793 | * explicit API call to set this, and default to blocking mode. | |
794 | * | |
795 | * - We need to determine our initial destination UDP address. The "natural" | |
796 | * way for a user to do this is to set the peer variable on a BIO_dgram. | |
797 | * However, this has problems because BIO_dgram's peer variable is used for | |
798 | * both transmission and reception. This means it can be constantly being | |
799 | * changed to a malicious value (e.g. if some random unrelated entity on the | |
800 | * network starts sending traffic to us) on every read call. This is not a | |
801 | * direct issue because we use the 'stateless' BIO_sendmmsg and BIO_recvmmsg | |
802 | * calls only, which do not use this variable. However, we do need to let | |
803 | * the user specify the peer in a 'normal' manner. The compromise here is | |
804 | * that we grab the current peer value set at the time the write BIO is set | |
805 | * and do not read the value again. | |
806 | * | |
807 | * - We also need to support memory BIOs (e.g. BIO_dgram_pair) or custom BIOs. | |
808 | * Currently we do this by only supporting non-blocking mode. | |
809 | * | |
810 | */ | |
811 | ||
812 | /* | |
813 | * Determines what initial destination UDP address we should use, if possible. | |
814 | * If this fails the client must set the destination address manually, or use a | |
815 | * BIO which does not need a destination address. | |
816 | */ | |
817 | static int csm_analyse_init_peer_addr(BIO *net_wbio, BIO_ADDR *peer) | |
818 | { | |
75b2920a | 819 | if (BIO_dgram_get_peer(net_wbio, peer) <= 0) |
22d53c88 HL |
820 | return 0; |
821 | ||
822 | return 1; | |
823 | } | |
824 | ||
51e671e2 HL |
825 | static int qc_can_support_blocking_cached(QUIC_CONNECTION *qc) |
826 | { | |
827 | QUIC_REACTOR *rtor = ossl_quic_channel_get_reactor(qc->ch); | |
828 | ||
829 | return ossl_quic_reactor_can_poll_r(rtor) | |
830 | && ossl_quic_reactor_can_poll_w(rtor); | |
831 | } | |
832 | ||
833 | static void qc_update_can_support_blocking(QUIC_CONNECTION *qc) | |
834 | { | |
835 | ossl_quic_channel_update_poll_descriptors(qc->ch); /* best effort */ | |
836 | } | |
837 | ||
838 | static void qc_update_blocking_mode(QUIC_CONNECTION *qc) | |
839 | { | |
840 | qc->blocking = qc->desires_blocking && qc_can_support_blocking_cached(qc); | |
841 | } | |
842 | ||
072328dd | 843 | void ossl_quic_conn_set0_net_rbio(SSL *s, BIO *net_rbio) |
22d53c88 | 844 | { |
072328dd HL |
845 | QCTX ctx; |
846 | ||
847 | if (!expect_quic(s, &ctx)) | |
848 | return; | |
849 | ||
850 | if (ctx.qc->net_rbio == net_rbio) | |
38b051a1 | 851 | return; |
38b051a1 | 852 | |
23c04709 | 853 | if (!ossl_quic_channel_set_net_rbio(ctx.qc->ch, net_rbio)) |
22d53c88 HL |
854 | return; |
855 | ||
072328dd HL |
856 | BIO_free(ctx.qc->net_rbio); |
857 | ctx.qc->net_rbio = net_rbio; | |
22d53c88 | 858 | |
51e671e2 HL |
859 | if (net_rbio != NULL) |
860 | BIO_set_nbio(net_rbio, 1); /* best effort autoconfig */ | |
861 | ||
22d53c88 | 862 | /* |
51e671e2 HL |
863 | * Determine if the current pair of read/write BIOs now set allows blocking |
864 | * mode to be supported. | |
22d53c88 | 865 | */ |
51e671e2 HL |
866 | qc_update_can_support_blocking(ctx.qc); |
867 | qc_update_blocking_mode(ctx.qc); | |
99e1cc7b TM |
868 | } |
869 | ||
072328dd | 870 | void ossl_quic_conn_set0_net_wbio(SSL *s, BIO *net_wbio) |
38b051a1 | 871 | { |
072328dd HL |
872 | QCTX ctx; |
873 | ||
874 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
875 | return; |
876 | ||
072328dd | 877 | if (ctx.qc->net_wbio == net_wbio) |
22d53c88 HL |
878 | return; |
879 | ||
23c04709 | 880 | if (!ossl_quic_channel_set_net_wbio(ctx.qc->ch, net_wbio)) |
072328dd HL |
881 | return; |
882 | ||
883 | BIO_free(ctx.qc->net_wbio); | |
884 | ctx.qc->net_wbio = net_wbio; | |
22d53c88 | 885 | |
51e671e2 | 886 | if (net_wbio != NULL) |
0818c170 | 887 | BIO_set_nbio(net_wbio, 1); /* best effort autoconfig */ |
51e671e2 HL |
888 | |
889 | /* | |
890 | * Determine if the current pair of read/write BIOs now set allows blocking | |
891 | * mode to be supported. | |
892 | */ | |
893 | qc_update_can_support_blocking(ctx.qc); | |
894 | qc_update_blocking_mode(ctx.qc); | |
22d53c88 | 895 | } |
38b051a1 | 896 | |
072328dd | 897 | BIO *ossl_quic_conn_get_net_rbio(const SSL *s) |
22d53c88 | 898 | { |
072328dd HL |
899 | QCTX ctx; |
900 | ||
901 | if (!expect_quic(s, &ctx)) | |
902 | return NULL; | |
903 | ||
904 | return ctx.qc->net_rbio; | |
38b051a1 TM |
905 | } |
906 | ||
072328dd | 907 | BIO *ossl_quic_conn_get_net_wbio(const SSL *s) |
22d53c88 | 908 | { |
072328dd HL |
909 | QCTX ctx; |
910 | ||
911 | if (!expect_quic(s, &ctx)) | |
912 | return NULL; | |
913 | ||
914 | return ctx.qc->net_wbio; | |
22d53c88 HL |
915 | } |
916 | ||
072328dd | 917 | int ossl_quic_conn_get_blocking_mode(const SSL *s) |
99e1cc7b | 918 | { |
072328dd HL |
919 | QCTX ctx; |
920 | ||
921 | if (!expect_quic(s, &ctx)) | |
922 | return 0; | |
923 | ||
cb5c208b | 924 | if (ctx.is_stream) |
51e671e2 | 925 | return xso_blocking_mode(ctx.xso); |
cb5c208b | 926 | |
51e671e2 | 927 | return qc_blocking_mode(ctx.qc); |
22d53c88 HL |
928 | } |
929 | ||
51e671e2 | 930 | QUIC_TAKES_LOCK |
072328dd | 931 | int ossl_quic_conn_set_blocking_mode(SSL *s, int blocking) |
22d53c88 | 932 | { |
51e671e2 | 933 | int ret = 0; |
072328dd HL |
934 | QCTX ctx; |
935 | ||
936 | if (!expect_quic(s, &ctx)) | |
937 | return 0; | |
938 | ||
51e671e2 | 939 | quic_lock(ctx.qc); |
22d53c88 | 940 | |
51e671e2 HL |
941 | /* Sanity check - can we support the request given the current network BIO? */ |
942 | if (blocking) { | |
cb5c208b | 943 | /* |
51e671e2 HL |
944 | * If called directly on a QCSO, update our information on network BIO |
945 | * capabilities. | |
cb5c208b | 946 | */ |
51e671e2 HL |
947 | if (!ctx.is_stream) |
948 | qc_update_can_support_blocking(ctx.qc); | |
949 | ||
950 | /* Cannot enable blocking mode if we do not have pollable FDs. */ | |
951 | if (!qc_can_support_blocking_cached(ctx.qc)) { | |
952 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_UNSUPPORTED, NULL); | |
953 | goto out; | |
954 | } | |
cb5c208b HL |
955 | } |
956 | ||
51e671e2 HL |
957 | if (!ctx.is_stream) |
958 | /* | |
959 | * If called directly on a QCSO, update default and connection-level | |
960 | * blocking modes. | |
961 | */ | |
962 | ctx.qc->desires_blocking = (blocking != 0); | |
963 | ||
964 | if (ctx.xso != NULL) { | |
cb5c208b | 965 | /* |
51e671e2 | 966 | * If called on a QSSO or a QCSO with a default XSO, update the blocking |
cb5c208b HL |
967 | * mode. |
968 | */ | |
51e671e2 HL |
969 | ctx.xso->desires_blocking = (blocking != 0); |
970 | ctx.xso->desires_blocking_set = 1; | |
971 | } | |
cb5c208b | 972 | |
51e671e2 HL |
973 | ret = 1; |
974 | out: | |
975 | qc_update_blocking_mode(ctx.qc); | |
976 | quic_unlock(ctx.qc); | |
977 | return ret; | |
99e1cc7b TM |
978 | } |
979 | ||
072328dd | 980 | int ossl_quic_conn_set_initial_peer_addr(SSL *s, |
22d53c88 | 981 | const BIO_ADDR *peer_addr) |
99e1cc7b | 982 | { |
072328dd HL |
983 | QCTX ctx; |
984 | ||
985 | if (!expect_quic(s, &ctx)) | |
986 | return 0; | |
987 | ||
988 | if (ctx.qc->started) | |
a954f761 | 989 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 990 | NULL); |
38b051a1 | 991 | |
22d53c88 | 992 | if (peer_addr == NULL) { |
072328dd | 993 | BIO_ADDR_clear(&ctx.qc->init_peer_addr); |
22d53c88 HL |
994 | return 1; |
995 | } | |
38b051a1 | 996 | |
072328dd | 997 | ctx.qc->init_peer_addr = *peer_addr; |
99e1cc7b TM |
998 | return 1; |
999 | } | |
1000 | ||
22d53c88 HL |
1001 | /* |
1002 | * QUIC Front-End I/O API: Asynchronous I/O Management | |
1003 | * =================================================== | |
1004 | * | |
6084e04b HL |
1005 | * (BIO/)SSL_handle_events => ossl_quic_handle_events |
1006 | * (BIO/)SSL_get_event_timeout => ossl_quic_get_event_timeout | |
22d53c88 HL |
1007 | * (BIO/)SSL_get_poll_fd => ossl_quic_get_poll_fd |
1008 | * | |
1009 | */ | |
1010 | ||
1011 | /* Returns 1 if the connection is being used in blocking mode. */ | |
cb5c208b | 1012 | static int qc_blocking_mode(const QUIC_CONNECTION *qc) |
99e1cc7b | 1013 | { |
22d53c88 HL |
1014 | return qc->blocking; |
1015 | } | |
38b051a1 | 1016 | |
cb5c208b HL |
1017 | static int xso_blocking_mode(const QUIC_XSO *xso) |
1018 | { | |
51e671e2 HL |
1019 | if (xso->desires_blocking_set) |
1020 | return xso->desires_blocking && qc_can_support_blocking_cached(xso->conn); | |
1021 | else | |
1022 | /* Only ever set if we can support blocking. */ | |
1023 | return xso->conn->blocking; | |
cb5c208b HL |
1024 | } |
1025 | ||
b626a0f1 | 1026 | /* SSL_handle_events; performs QUIC I/O and timeout processing. */ |
a8489257 | 1027 | QUIC_TAKES_LOCK |
6084e04b | 1028 | int ossl_quic_handle_events(SSL *s) |
22d53c88 | 1029 | { |
072328dd HL |
1030 | QCTX ctx; |
1031 | ||
1032 | if (!expect_quic(s, &ctx)) | |
1033 | return 0; | |
1034 | ||
1035 | quic_lock(ctx.qc); | |
072328dd HL |
1036 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
1037 | quic_unlock(ctx.qc); | |
99e1cc7b TM |
1038 | return 1; |
1039 | } | |
1040 | ||
22d53c88 | 1041 | /* |
6084e04b | 1042 | * SSL_get_event_timeout. Get the time in milliseconds until the SSL object |
b626a0f1 HL |
1043 | * should next have events handled by the application by calling |
1044 | * SSL_handle_events(). tv is set to 0 if the object should have events handled | |
1045 | * immediately. If no timeout is currently active, *is_infinite is set to 1 and | |
1046 | * the value of *tv is undefined. | |
22d53c88 | 1047 | */ |
a8489257 | 1048 | QUIC_TAKES_LOCK |
7ea49713 | 1049 | int ossl_quic_get_event_timeout(SSL *s, struct timeval *tv, int *is_infinite) |
99e1cc7b | 1050 | { |
072328dd | 1051 | QCTX ctx; |
a1660c94 | 1052 | OSSL_TIME deadline = ossl_time_infinite(); |
e44795bd | 1053 | |
072328dd HL |
1054 | if (!expect_quic(s, &ctx)) |
1055 | return 0; | |
a8489257 | 1056 | |
072328dd HL |
1057 | quic_lock(ctx.qc); |
1058 | ||
23c04709 HL |
1059 | deadline |
1060 | = ossl_quic_reactor_get_tick_deadline(ossl_quic_channel_get_reactor(ctx.qc->ch)); | |
22d53c88 HL |
1061 | |
1062 | if (ossl_time_is_infinite(deadline)) { | |
7ea49713 HL |
1063 | *is_infinite = 1; |
1064 | ||
1065 | /* | |
1066 | * Robustness against faulty applications that don't check *is_infinite; | |
1067 | * harmless long timeout. | |
1068 | */ | |
1069 | tv->tv_sec = 1000000; | |
22d53c88 | 1070 | tv->tv_usec = 0; |
7ea49713 | 1071 | |
072328dd | 1072 | quic_unlock(ctx.qc); |
22d53c88 HL |
1073 | return 1; |
1074 | } | |
1075 | ||
e3e9794a | 1076 | *tv = ossl_time_to_timeval(ossl_time_subtract(deadline, get_time(ctx.qc))); |
7ea49713 | 1077 | *is_infinite = 0; |
072328dd | 1078 | quic_unlock(ctx.qc); |
22d53c88 HL |
1079 | return 1; |
1080 | } | |
1081 | ||
1082 | /* SSL_get_rpoll_descriptor */ | |
072328dd | 1083 | int ossl_quic_get_rpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
22d53c88 | 1084 | { |
072328dd HL |
1085 | QCTX ctx; |
1086 | ||
1087 | if (!expect_quic(s, &ctx)) | |
e44795bd TM |
1088 | return 0; |
1089 | ||
8ee3ee10 | 1090 | if (desc == NULL || ctx.qc->net_rbio == NULL) |
a954f761 | 1091 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 | 1092 | NULL); |
072328dd HL |
1093 | |
1094 | return BIO_get_rpoll_descriptor(ctx.qc->net_rbio, desc); | |
99e1cc7b TM |
1095 | } |
1096 | ||
22d53c88 | 1097 | /* SSL_get_wpoll_descriptor */ |
072328dd | 1098 | int ossl_quic_get_wpoll_descriptor(SSL *s, BIO_POLL_DESCRIPTOR *desc) |
99e1cc7b | 1099 | { |
072328dd HL |
1100 | QCTX ctx; |
1101 | ||
1102 | if (!expect_quic(s, &ctx)) | |
1103 | return 0; | |
1104 | ||
8ee3ee10 | 1105 | if (desc == NULL || ctx.qc->net_wbio == NULL) |
a954f761 | 1106 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 | 1107 | NULL); |
22d53c88 | 1108 | |
072328dd | 1109 | return BIO_get_wpoll_descriptor(ctx.qc->net_wbio, desc); |
99e1cc7b TM |
1110 | } |
1111 | ||
b639475a | 1112 | /* SSL_net_read_desired */ |
a8489257 | 1113 | QUIC_TAKES_LOCK |
072328dd | 1114 | int ossl_quic_get_net_read_desired(SSL *s) |
99e1cc7b | 1115 | { |
072328dd | 1116 | QCTX ctx; |
a8489257 HL |
1117 | int ret; |
1118 | ||
072328dd HL |
1119 | if (!expect_quic(s, &ctx)) |
1120 | return 0; | |
1121 | ||
1122 | quic_lock(ctx.qc); | |
072328dd HL |
1123 | ret = ossl_quic_reactor_net_read_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
1124 | quic_unlock(ctx.qc); | |
a8489257 | 1125 | return ret; |
22d53c88 | 1126 | } |
e44795bd | 1127 | |
b639475a | 1128 | /* SSL_net_write_desired */ |
a8489257 | 1129 | QUIC_TAKES_LOCK |
072328dd | 1130 | int ossl_quic_get_net_write_desired(SSL *s) |
22d53c88 | 1131 | { |
a8489257 | 1132 | int ret; |
072328dd HL |
1133 | QCTX ctx; |
1134 | ||
1135 | if (!expect_quic(s, &ctx)) | |
1136 | return 0; | |
a8489257 | 1137 | |
072328dd | 1138 | quic_lock(ctx.qc); |
072328dd HL |
1139 | ret = ossl_quic_reactor_net_write_desired(ossl_quic_channel_get_reactor(ctx.qc->ch)); |
1140 | quic_unlock(ctx.qc); | |
a8489257 | 1141 | return ret; |
99e1cc7b TM |
1142 | } |
1143 | ||
22d53c88 HL |
1144 | /* |
1145 | * QUIC Front-End I/O API: Connection Lifecycle Operations | |
1146 | * ======================================================= | |
1147 | * | |
1148 | * SSL_do_handshake => ossl_quic_do_handshake | |
1149 | * SSL_set_connect_state => ossl_quic_set_connect_state | |
1150 | * SSL_set_accept_state => ossl_quic_set_accept_state | |
1151 | * SSL_shutdown => ossl_quic_shutdown | |
1152 | * SSL_ctrl => ossl_quic_ctrl | |
1153 | * (BIO/)SSL_connect => ossl_quic_connect | |
1154 | * (BIO/)SSL_accept => ossl_quic_accept | |
1155 | * | |
1156 | */ | |
1157 | ||
8a2e9aba HL |
1158 | QUIC_NEEDS_LOCK |
1159 | static void qc_shutdown_flush_init(QUIC_CONNECTION *qc) | |
1160 | { | |
1161 | QUIC_STREAM_MAP *qsm; | |
1162 | ||
1163 | if (qc->shutting_down) | |
1164 | return; | |
1165 | ||
1166 | qsm = ossl_quic_channel_get_qsm(qc->ch); | |
1167 | ||
1168 | ossl_quic_stream_map_begin_shutdown_flush(qsm); | |
1169 | qc->shutting_down = 1; | |
1170 | } | |
1171 | ||
1172 | /* Returns 1 if all shutdown-flush streams have been done with. */ | |
1173 | QUIC_NEEDS_LOCK | |
1174 | static int qc_shutdown_flush_finished(QUIC_CONNECTION *qc) | |
1175 | { | |
1176 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(qc->ch); | |
1177 | ||
1178 | return qc->shutting_down | |
1179 | && ossl_quic_stream_map_is_shutdown_flush_finished(qsm); | |
1180 | } | |
1181 | ||
22d53c88 | 1182 | /* SSL_shutdown */ |
e8043229 | 1183 | static int quic_shutdown_wait(void *arg) |
99e1cc7b | 1184 | { |
e8043229 | 1185 | QUIC_CONNECTION *qc = arg; |
22d53c88 | 1186 | |
23c04709 | 1187 | return ossl_quic_channel_is_terminated(qc->ch); |
e8043229 | 1188 | } |
22d53c88 | 1189 | |
8a2e9aba HL |
1190 | /* Returns 1 if shutdown flush process has finished or is inapplicable. */ |
1191 | static int quic_shutdown_flush_wait(void *arg) | |
1192 | { | |
1193 | QUIC_CONNECTION *qc = arg; | |
1194 | ||
1195 | return ossl_quic_channel_is_term_any(qc->ch) | |
1196 | || qc_shutdown_flush_finished(qc); | |
1197 | } | |
1198 | ||
25a0c4b9 HL |
1199 | static int quic_shutdown_peer_wait(void *arg) |
1200 | { | |
1201 | QUIC_CONNECTION *qc = arg; | |
1202 | return ossl_quic_channel_is_term_any(qc->ch); | |
1203 | } | |
1204 | ||
a8489257 | 1205 | QUIC_TAKES_LOCK |
072328dd | 1206 | int ossl_quic_conn_shutdown(SSL *s, uint64_t flags, |
e8043229 HL |
1207 | const SSL_SHUTDOWN_EX_ARGS *args, |
1208 | size_t args_len) | |
1209 | { | |
a8489257 | 1210 | int ret; |
072328dd | 1211 | QCTX ctx; |
8a2e9aba | 1212 | int stream_flush = ((flags & SSL_SHUTDOWN_FLAG_NO_STREAM_FLUSH) == 0); |
25a0c4b9 HL |
1213 | int no_block = ((flags & SSL_SHUTDOWN_FLAG_NO_BLOCK) != 0); |
1214 | int wait_peer = ((flags & SSL_SHUTDOWN_FLAG_WAIT_PEER) != 0); | |
a8489257 | 1215 | |
072328dd | 1216 | if (!expect_quic(s, &ctx)) |
63fac76c | 1217 | return -1; |
072328dd | 1218 | |
8ee3ee10 | 1219 | if (ctx.is_stream) { |
a954f761 | 1220 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_CONN_USE_ONLY, NULL); |
cb5c208b | 1221 | return -1; |
8ee3ee10 | 1222 | } |
cb5c208b | 1223 | |
072328dd | 1224 | quic_lock(ctx.qc); |
a8489257 | 1225 | |
63fac76c HL |
1226 | if (ossl_quic_channel_is_terminated(ctx.qc->ch)) { |
1227 | quic_unlock(ctx.qc); | |
1228 | return 1; | |
1229 | } | |
1230 | ||
8a2e9aba | 1231 | /* Phase 1: Stream Flushing */ |
25a0c4b9 | 1232 | if (!wait_peer && stream_flush) { |
8a2e9aba HL |
1233 | qc_shutdown_flush_init(ctx.qc); |
1234 | ||
1235 | if (!qc_shutdown_flush_finished(ctx.qc)) { | |
25a0c4b9 | 1236 | if (!no_block && qc_blocking_mode(ctx.qc)) { |
23406e30 HL |
1237 | ret = block_until_pred(ctx.qc, quic_shutdown_flush_wait, ctx.qc, 0); |
1238 | if (ret < 1) { | |
1239 | ret = 0; | |
1240 | goto err; | |
1241 | } | |
1242 | } else { | |
8a2e9aba | 1243 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
23406e30 | 1244 | } |
8a2e9aba HL |
1245 | } |
1246 | ||
1247 | if (!qc_shutdown_flush_finished(ctx.qc)) { | |
1248 | quic_unlock(ctx.qc); | |
1249 | return 0; /* ongoing */ | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | /* Phase 2: Connection Closure */ | |
25a0c4b9 HL |
1254 | if (wait_peer && !ossl_quic_channel_is_term_any(ctx.qc->ch)) { |
1255 | if (!no_block && qc_blocking_mode(ctx.qc)) { | |
1256 | ret = block_until_pred(ctx.qc, quic_shutdown_peer_wait, ctx.qc, 0); | |
1257 | if (ret < 1) { | |
1258 | ret = 0; | |
1259 | goto err; | |
1260 | } | |
1261 | } else { | |
1262 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); | |
1263 | } | |
1264 | ||
1265 | if (!ossl_quic_channel_is_term_any(ctx.qc->ch)) { | |
1266 | ret = 0; /* peer hasn't closed yet - still not done */ | |
1267 | goto err; | |
1268 | } | |
1269 | ||
1270 | /* | |
1271 | * We are at least terminating - go through the normal process of | |
1272 | * waiting until we are in the TERMINATED state. | |
1273 | */ | |
1274 | } | |
1275 | ||
1276 | /* Block mutation ops regardless of if we did stream flush. */ | |
1277 | ctx.qc->shutting_down = 1; | |
1278 | ||
1279 | /* | |
1280 | * This call is a no-op if we are already terminating, so it doesn't | |
1281 | * affect the wait_peer case. | |
1282 | */ | |
072328dd | 1283 | ossl_quic_channel_local_close(ctx.qc->ch, |
40c8c756 HL |
1284 | args != NULL ? args->quic_error_code : 0, |
1285 | args != NULL ? args->quic_reason : NULL); | |
e8043229 | 1286 | |
f219abef MC |
1287 | SSL_set_shutdown(ctx.qc->tls, SSL_SENT_SHUTDOWN); |
1288 | ||
072328dd HL |
1289 | if (ossl_quic_channel_is_terminated(ctx.qc->ch)) { |
1290 | quic_unlock(ctx.qc); | |
e8043229 | 1291 | return 1; |
a8489257 | 1292 | } |
e8043229 | 1293 | |
8a2e9aba | 1294 | /* Phase 3: Terminating Wait Time */ |
25a0c4b9 HL |
1295 | if (!no_block && qc_blocking_mode(ctx.qc) |
1296 | && (flags & SSL_SHUTDOWN_FLAG_RAPID) == 0) { | |
23406e30 HL |
1297 | ret = block_until_pred(ctx.qc, quic_shutdown_wait, ctx.qc, 0); |
1298 | if (ret < 1) { | |
1299 | ret = 0; | |
1300 | goto err; | |
1301 | } | |
1302 | } else { | |
072328dd | 1303 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
23406e30 | 1304 | } |
e8043229 | 1305 | |
072328dd | 1306 | ret = ossl_quic_channel_is_terminated(ctx.qc->ch); |
23406e30 | 1307 | err: |
072328dd | 1308 | quic_unlock(ctx.qc); |
a8489257 | 1309 | return ret; |
99e1cc7b TM |
1310 | } |
1311 | ||
22d53c88 | 1312 | /* SSL_ctrl */ |
e44795bd | 1313 | long ossl_quic_ctrl(SSL *s, int cmd, long larg, void *parg) |
99e1cc7b | 1314 | { |
072328dd | 1315 | QCTX ctx; |
38b051a1 | 1316 | |
072328dd | 1317 | if (!expect_quic(s, &ctx)) |
38b051a1 TM |
1318 | return 0; |
1319 | ||
22d53c88 HL |
1320 | switch (cmd) { |
1321 | case SSL_CTRL_MODE: | |
cb5c208b HL |
1322 | /* If called on a QCSO, update the default mode. */ |
1323 | if (!ctx.is_stream) | |
1324 | ctx.qc->default_ssl_mode |= (uint32_t)larg; | |
1325 | ||
1326 | /* | |
1327 | * If we were called on a QSSO or have a default stream, we also update | |
1328 | * that. | |
1329 | */ | |
1330 | if (ctx.xso != NULL) { | |
1331 | /* Cannot enable EPW while AON write in progress. */ | |
1332 | if (ctx.xso->aon_write_in_progress) | |
1333 | larg &= ~SSL_MODE_ENABLE_PARTIAL_WRITE; | |
1334 | ||
1335 | ctx.xso->ssl_mode |= (uint32_t)larg; | |
1336 | return ctx.xso->ssl_mode; | |
1337 | } | |
dfc227bd | 1338 | |
cb5c208b | 1339 | return ctx.qc->default_ssl_mode; |
22d53c88 | 1340 | case SSL_CTRL_CLEAR_MODE: |
cb5c208b HL |
1341 | if (!ctx.is_stream) |
1342 | ctx.qc->default_ssl_mode &= ~(uint32_t)larg; | |
1343 | ||
1344 | if (ctx.xso != NULL) { | |
1345 | ctx.xso->ssl_mode &= ~(uint32_t)larg; | |
1346 | return ctx.xso->ssl_mode; | |
1347 | } | |
1348 | ||
1349 | return ctx.qc->default_ssl_mode; | |
63dfde87 MC |
1350 | |
1351 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
5cf99b40 | 1352 | ossl_quic_channel_set_msg_callback_arg(ctx.qc->ch, parg); |
63dfde87 MC |
1353 | /* This ctrl also needs to be passed to the internal SSL object */ |
1354 | return SSL_ctrl(ctx.qc->tls, cmd, larg, parg); | |
1355 | ||
2f90ea3d HL |
1356 | case DTLS_CTRL_GET_TIMEOUT: /* DTLSv1_get_timeout */ |
1357 | { | |
1358 | int is_infinite; | |
1359 | ||
1360 | if (!ossl_quic_get_event_timeout(s, parg, &is_infinite)) | |
1361 | return 0; | |
1362 | ||
1363 | return !is_infinite; | |
1364 | } | |
1365 | case DTLS_CTRL_HANDLE_TIMEOUT: /* DTLSv1_handle_timeout */ | |
1366 | /* For legacy compatibility with DTLS calls. */ | |
1367 | return ossl_quic_handle_events(s) == 1 ? 1 : -1; | |
c5b882a8 HL |
1368 | |
1369 | /* Mask ctrls we shouldn't support for QUIC. */ | |
1370 | case SSL_CTRL_GET_READ_AHEAD: | |
1371 | case SSL_CTRL_SET_READ_AHEAD: | |
1372 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1373 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
1374 | case SSL_CTRL_SET_MAX_PIPELINES: | |
1375 | return 0; | |
1376 | ||
22d53c88 | 1377 | default: |
c5b882a8 HL |
1378 | /* |
1379 | * Probably a TLS related ctrl. Send back to the frontend SSL_ctrl | |
1380 | * implementation. Either SSL_ctrl will handle it itself by direct | |
1381 | * access into handshake layer state, or failing that, it will be passed | |
1382 | * to the handshake layer via the SSL_METHOD vtable. If the ctrl is not | |
1383 | * supported by anything, the handshake layer's ctrl method will finally | |
1384 | * return 0. | |
1385 | */ | |
1386 | return ossl_ctrl_internal(&ctx.qc->ssl, cmd, larg, parg, /*no_quic=*/1); | |
08e49012 | 1387 | } |
22d53c88 HL |
1388 | } |
1389 | ||
1390 | /* SSL_set_connect_state */ | |
072328dd | 1391 | void ossl_quic_set_connect_state(SSL *s) |
22d53c88 | 1392 | { |
072328dd HL |
1393 | QCTX ctx; |
1394 | ||
1395 | if (!expect_quic(s, &ctx)) | |
1396 | return; | |
1397 | ||
22d53c88 | 1398 | /* Cannot be changed after handshake started */ |
cb5c208b | 1399 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1400 | return; |
1401 | ||
dfb9ae14 | 1402 | ctx.qc->as_server_state = 0; |
22d53c88 HL |
1403 | } |
1404 | ||
1405 | /* SSL_set_accept_state */ | |
072328dd | 1406 | void ossl_quic_set_accept_state(SSL *s) |
22d53c88 | 1407 | { |
072328dd HL |
1408 | QCTX ctx; |
1409 | ||
1410 | if (!expect_quic(s, &ctx)) | |
1411 | return; | |
1412 | ||
22d53c88 | 1413 | /* Cannot be changed after handshake started */ |
cb5c208b | 1414 | if (ctx.qc->started || ctx.is_stream) |
22d53c88 HL |
1415 | return; |
1416 | ||
dfb9ae14 | 1417 | ctx.qc->as_server_state = 1; |
22d53c88 HL |
1418 | } |
1419 | ||
1420 | /* SSL_do_handshake */ | |
1421 | struct quic_handshake_wait_args { | |
1422 | QUIC_CONNECTION *qc; | |
1423 | }; | |
1424 | ||
1425 | static int quic_handshake_wait(void *arg) | |
1426 | { | |
1427 | struct quic_handshake_wait_args *args = arg; | |
1428 | ||
6d6b3a03 | 1429 | if (!quic_mutation_allowed(args->qc, /*req_active=*/1)) |
22d53c88 HL |
1430 | return -1; |
1431 | ||
1432 | if (ossl_quic_channel_is_handshake_complete(args->qc->ch)) | |
1433 | return 1; | |
1434 | ||
99e1cc7b TM |
1435 | return 0; |
1436 | } | |
1437 | ||
22d53c88 | 1438 | static int configure_channel(QUIC_CONNECTION *qc) |
99e1cc7b | 1439 | { |
22d53c88 | 1440 | assert(qc->ch != NULL); |
08e49012 | 1441 | |
d1ac77b1 HL |
1442 | if (!ossl_quic_channel_set_net_rbio(qc->ch, qc->net_rbio) |
1443 | || !ossl_quic_channel_set_net_wbio(qc->ch, qc->net_wbio) | |
22d53c88 HL |
1444 | || !ossl_quic_channel_set_peer_addr(qc->ch, &qc->init_peer_addr)) |
1445 | return 0; | |
1446 | ||
1447 | return 1; | |
1448 | } | |
1449 | ||
4847599b | 1450 | QUIC_NEEDS_LOCK |
23c04709 | 1451 | static int create_channel(QUIC_CONNECTION *qc) |
22d53c88 HL |
1452 | { |
1453 | QUIC_CHANNEL_ARGS args = {0}; | |
1454 | ||
5cf99b40 MC |
1455 | args.libctx = qc->ssl.ctx->libctx; |
1456 | args.propq = qc->ssl.ctx->propq; | |
1457 | args.is_server = qc->as_server; | |
1458 | args.tls = qc->tls; | |
1459 | args.mutex = qc->mutex; | |
e3e9794a HL |
1460 | args.now_cb = get_time_cb; |
1461 | args.now_cb_arg = qc; | |
22d53c88 HL |
1462 | |
1463 | qc->ch = ossl_quic_channel_new(&args); | |
8ee3ee10 | 1464 | if (qc->ch == NULL) { |
a954f761 | 1465 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 | 1466 | return 0; |
8ee3ee10 | 1467 | } |
22d53c88 | 1468 | |
e8043229 HL |
1469 | return 1; |
1470 | } | |
1471 | ||
1472 | /* | |
2e176011 HL |
1473 | * Configures a channel with the information we have accumulated via calls made |
1474 | * to us from the application prior to starting a handshake attempt. | |
e8043229 | 1475 | */ |
4847599b | 1476 | QUIC_NEEDS_LOCK |
2e176011 | 1477 | static int ensure_channel_started(QCTX *ctx) |
e8043229 | 1478 | { |
2e176011 HL |
1479 | QUIC_CONNECTION *qc = ctx->qc; |
1480 | ||
ffce2946 | 1481 | if (!qc->started) { |
2e176011 HL |
1482 | if (!configure_channel(qc)) { |
1483 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, | |
1484 | "failed to configure channel"); | |
1485 | return 0; | |
1486 | } | |
1487 | ||
1488 | if (!ossl_quic_channel_start(qc->ch)) { | |
1489 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, | |
1490 | "failed to start channel"); | |
1491 | return 0; | |
1492 | } | |
f2f7c4f1 | 1493 | |
629b408c | 1494 | #if !defined(OPENSSL_NO_QUIC_THREAD_ASSIST) |
ffce2946 | 1495 | if (qc->is_thread_assisted) |
2e176011 HL |
1496 | if (!ossl_quic_thread_assist_init_start(&qc->thread_assist, qc->ch)) { |
1497 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, | |
1498 | "failed to start assist thread"); | |
1499 | return 0; | |
1500 | } | |
629b408c | 1501 | #endif |
ffce2946 HL |
1502 | } |
1503 | ||
22d53c88 HL |
1504 | qc->started = 1; |
1505 | return 1; | |
99e1cc7b TM |
1506 | } |
1507 | ||
4a530180 | 1508 | QUIC_NEEDS_LOCK |
faa3a180 | 1509 | static int quic_do_handshake(QCTX *ctx) |
99e1cc7b | 1510 | { |
22d53c88 | 1511 | int ret; |
faa3a180 | 1512 | QUIC_CONNECTION *qc = ctx->qc; |
22d53c88 | 1513 | |
23c04709 | 1514 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
ca41f6b7 | 1515 | /* Handshake already completed. */ |
4a530180 | 1516 | return 1; |
ca41f6b7 | 1517 | |
6d6b3a03 | 1518 | if (!quic_mutation_allowed(qc, /*req_active=*/0)) |
faa3a180 | 1519 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 1520 | |
ca41f6b7 | 1521 | if (BIO_ADDR_family(&qc->init_peer_addr) == AF_UNSPEC) { |
22d53c88 | 1522 | /* Peer address must have been set. */ |
a954f761 | 1523 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_REMOTE_PEER_ADDRESS_NOT_SET, NULL); |
4a530180 | 1524 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1525 | } |
22d53c88 | 1526 | |
dfb9ae14 | 1527 | if (qc->as_server != qc->as_server_state) { |
a954f761 | 1528 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
4a530180 | 1529 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1530 | } |
22d53c88 | 1531 | |
ca41f6b7 | 1532 | if (qc->net_rbio == NULL || qc->net_wbio == NULL) { |
22d53c88 | 1533 | /* Need read and write BIOs. */ |
a954f761 | 1534 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BIO_NOT_SET, NULL); |
4a530180 | 1535 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1536 | } |
22d53c88 HL |
1537 | |
1538 | /* | |
1539 | * Start connection process. Note we may come here multiple times in | |
1540 | * non-blocking mode, which is fine. | |
1541 | */ | |
2e176011 | 1542 | if (!ensure_channel_started(qc)) /* raises on failure */ |
4a530180 | 1543 | return -1; /* Non-protocol error */ |
22d53c88 | 1544 | |
4a530180 | 1545 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
22d53c88 | 1546 | /* The handshake is now done. */ |
4a530180 | 1547 | return 1; |
22d53c88 | 1548 | |
51e671e2 HL |
1549 | if (!qc_blocking_mode(qc)) { |
1550 | /* Try to advance the reactor. */ | |
1551 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1552 | ||
1553 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) | |
1554 | /* The handshake is now done. */ | |
1555 | return 1; | |
1556 | ||
1557 | if (ossl_quic_channel_is_term_any(qc->ch)) { | |
1558 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
1559 | return 0; | |
1560 | } else if (qc->desires_blocking) { | |
1561 | /* | |
1562 | * As a special case when doing a handshake when blocking mode is | |
1563 | * desired yet not available, see if the network BIOs have become | |
1564 | * poll descriptor-enabled. This supports BIOs such as BIO_s_connect | |
1565 | * which do late creation of socket FDs and therefore cannot expose | |
1566 | * a poll descriptor until after a network BIO is set on the QCSO. | |
1567 | */ | |
1568 | assert(!qc->blocking); | |
1569 | qc_update_can_support_blocking(qc); | |
1570 | qc_update_blocking_mode(qc); | |
1571 | } | |
1572 | } | |
1573 | ||
1574 | /* | |
1575 | * We are either in blocking mode or just entered it due to the code above. | |
1576 | */ | |
cb5c208b | 1577 | if (qc_blocking_mode(qc)) { |
22d53c88 HL |
1578 | /* In blocking mode, wait for the handshake to complete. */ |
1579 | struct quic_handshake_wait_args args; | |
1580 | ||
1581 | args.qc = qc; | |
1582 | ||
1583 | ret = block_until_pred(qc, quic_handshake_wait, &args, 0); | |
6d6b3a03 | 1584 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { |
faa3a180 | 1585 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
4a530180 | 1586 | return 0; /* Shutdown before completion */ |
ca41f6b7 | 1587 | } else if (ret <= 0) { |
a954f761 | 1588 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
4a530180 | 1589 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1590 | } |
22d53c88 HL |
1591 | |
1592 | assert(ossl_quic_channel_is_handshake_complete(qc->ch)); | |
4a530180 | 1593 | return 1; |
22d53c88 | 1594 | } |
51e671e2 HL |
1595 | |
1596 | /* | |
1597 | * Otherwise, indicate that the handshake isn't done yet. | |
1598 | * We can only get here in non-blocking mode. | |
1599 | */ | |
1600 | QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); | |
1601 | return -1; /* Non-protocol error */ | |
4a530180 | 1602 | } |
a8489257 | 1603 | |
4a530180 | 1604 | QUIC_TAKES_LOCK |
072328dd | 1605 | int ossl_quic_do_handshake(SSL *s) |
4a530180 HL |
1606 | { |
1607 | int ret; | |
072328dd | 1608 | QCTX ctx; |
4a530180 | 1609 | |
072328dd HL |
1610 | if (!expect_quic(s, &ctx)) |
1611 | return 0; | |
1612 | ||
a954f761 | 1613 | ctx.in_io = 1; |
072328dd | 1614 | quic_lock(ctx.qc); |
4a530180 | 1615 | |
faa3a180 | 1616 | ret = quic_do_handshake(&ctx); |
072328dd | 1617 | quic_unlock(ctx.qc); |
a8489257 | 1618 | return ret; |
99e1cc7b TM |
1619 | } |
1620 | ||
22d53c88 HL |
1621 | /* SSL_connect */ |
1622 | int ossl_quic_connect(SSL *s) | |
99e1cc7b | 1623 | { |
22d53c88 | 1624 | /* Ensure we are in connect state (no-op if non-idle). */ |
072328dd | 1625 | ossl_quic_set_connect_state(s); |
22d53c88 HL |
1626 | |
1627 | /* Begin or continue the handshake */ | |
072328dd | 1628 | return ossl_quic_do_handshake(s); |
99e1cc7b TM |
1629 | } |
1630 | ||
22d53c88 HL |
1631 | /* SSL_accept */ |
1632 | int ossl_quic_accept(SSL *s) | |
99e1cc7b | 1633 | { |
22d53c88 | 1634 | /* Ensure we are in accept state (no-op if non-idle). */ |
072328dd | 1635 | ossl_quic_set_accept_state(s); |
22d53c88 HL |
1636 | |
1637 | /* Begin or continue the handshake */ | |
072328dd | 1638 | return ossl_quic_do_handshake(s); |
99e1cc7b | 1639 | } |
e44795bd | 1640 | |
cb5c208b HL |
1641 | /* |
1642 | * QUIC Front-End I/O API: Stream Lifecycle Operations | |
1643 | * =================================================== | |
1644 | * | |
1645 | * SSL_stream_new => ossl_quic_conn_stream_new | |
1646 | * | |
1647 | */ | |
21c80696 HL |
1648 | |
1649 | /* | |
1650 | * Try to create the default XSO if it doesn't already exist. Returns 1 if the | |
1651 | * default XSO was created. Returns 0 if it was not (e.g. because it already | |
1652 | * exists). Note that this is NOT an error condition. | |
1653 | */ | |
1654 | QUIC_NEEDS_LOCK | |
faa3a180 | 1655 | static int qc_try_create_default_xso_for_write(QCTX *ctx) |
21c80696 | 1656 | { |
8b7be3aa | 1657 | uint64_t flags = 0; |
faa3a180 | 1658 | QUIC_CONNECTION *qc = ctx->qc; |
21c80696 | 1659 | |
8b7be3aa HL |
1660 | if (qc->default_xso_created |
1661 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
21c80696 HL |
1662 | /* |
1663 | * We only do this once. If the user detaches a previously created | |
1664 | * default XSO we don't auto-create another one. | |
1665 | */ | |
faa3a180 | 1666 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
21c80696 | 1667 | |
8b7be3aa HL |
1668 | /* Create a locally-initiated stream. */ |
1669 | if (qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_AUTO_UNI) | |
1670 | flags |= SSL_STREAM_FLAG_UNI; | |
1671 | ||
faa3a180 | 1672 | qc_set_default_xso(qc, (QUIC_XSO *)quic_conn_stream_new(ctx, flags, |
13ac037d | 1673 | /*needs_lock=*/0), |
995ff282 | 1674 | /*touch=*/0); |
8b7be3aa | 1675 | if (qc->default_xso == NULL) |
faa3a180 | 1676 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1677 | |
995ff282 | 1678 | qc_touch_default_xso(qc); |
8b7be3aa HL |
1679 | return 1; |
1680 | } | |
1681 | ||
1682 | struct quic_wait_for_stream_args { | |
1683 | QUIC_CONNECTION *qc; | |
1684 | QUIC_STREAM *qs; | |
faa3a180 | 1685 | QCTX *ctx; |
8b7be3aa HL |
1686 | uint64_t expect_id; |
1687 | }; | |
1688 | ||
1689 | QUIC_NEEDS_LOCK | |
1690 | static int quic_wait_for_stream(void *arg) | |
1691 | { | |
1692 | struct quic_wait_for_stream_args *args = arg; | |
1693 | ||
6d6b3a03 | 1694 | if (!quic_mutation_allowed(args->qc, /*req_active=*/1)) { |
8b7be3aa | 1695 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 1696 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
8b7be3aa HL |
1697 | return -1; |
1698 | } | |
1699 | ||
1700 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
acc6fde0 HL |
1701 | args->expect_id | QUIC_STREAM_DIR_BIDI); |
1702 | if (args->qs == NULL) | |
1703 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
1704 | args->expect_id | QUIC_STREAM_DIR_UNI); | |
1705 | ||
8b7be3aa HL |
1706 | if (args->qs != NULL) |
1707 | return 1; /* stream now exists */ | |
1708 | ||
1709 | return 0; /* did not get a stream, keep trying */ | |
1710 | } | |
1711 | ||
1712 | QUIC_NEEDS_LOCK | |
faa3a180 | 1713 | static int qc_wait_for_default_xso_for_read(QCTX *ctx) |
8b7be3aa HL |
1714 | { |
1715 | /* Called on a QCSO and we don't currently have a default stream. */ | |
1716 | uint64_t expect_id; | |
faa3a180 | 1717 | QUIC_CONNECTION *qc = ctx->qc; |
8b7be3aa HL |
1718 | QUIC_STREAM *qs; |
1719 | int res; | |
1720 | struct quic_wait_for_stream_args wargs; | |
1721 | ||
1722 | /* | |
1723 | * If default stream functionality is disabled or we already detached | |
1724 | * one, don't make another default stream and just fail. | |
1725 | */ | |
1726 | if (qc->default_xso_created | |
1727 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
faa3a180 | 1728 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
8b7be3aa HL |
1729 | |
1730 | /* | |
1731 | * The peer may have opened a stream since we last ticked. So tick and | |
1732 | * see if the stream with ordinal 0 (remote, bidi/uni based on stream | |
1733 | * mode) exists yet. QUIC stream IDs must be allocated in order, so the | |
1734 | * first stream created by a peer must have an ordinal of 0. | |
1735 | */ | |
1736 | expect_id = qc->as_server | |
1737 | ? QUIC_STREAM_INITIATOR_CLIENT | |
1738 | : QUIC_STREAM_INITIATOR_SERVER; | |
1739 | ||
8b7be3aa | 1740 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), |
acc6fde0 HL |
1741 | expect_id | QUIC_STREAM_DIR_BIDI); |
1742 | if (qs == NULL) | |
1743 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1744 | expect_id | QUIC_STREAM_DIR_UNI); | |
1745 | ||
8b7be3aa HL |
1746 | if (qs == NULL) { |
1747 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1748 | ||
1749 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1750 | expect_id); | |
1751 | } | |
1752 | ||
1753 | if (qs == NULL) { | |
1754 | if (!qc_blocking_mode(qc)) | |
1755 | /* Non-blocking mode, so just bail immediately. */ | |
faa3a180 | 1756 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); |
8b7be3aa HL |
1757 | |
1758 | /* Block until we have a stream. */ | |
1759 | wargs.qc = qc; | |
1760 | wargs.qs = NULL; | |
faa3a180 | 1761 | wargs.ctx = ctx; |
8b7be3aa HL |
1762 | wargs.expect_id = expect_id; |
1763 | ||
1764 | res = block_until_pred(qc, quic_wait_for_stream, &wargs, 0); | |
1765 | if (res == 0) | |
faa3a180 | 1766 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa HL |
1767 | else if (res < 0 || wargs.qs == NULL) |
1768 | /* quic_wait_for_stream raised error here */ | |
21c80696 | 1769 | return 0; |
8b7be3aa HL |
1770 | |
1771 | qs = wargs.qs; | |
21c80696 HL |
1772 | } |
1773 | ||
8b7be3aa HL |
1774 | /* |
1775 | * We now have qs != NULL. Make it the default stream, creating the | |
1776 | * necessary XSO. | |
1777 | */ | |
995ff282 | 1778 | qc_set_default_xso(qc, create_xso_from_stream(qc, qs), /*touch=*/0); |
8b7be3aa | 1779 | if (qc->default_xso == NULL) |
a954f761 | 1780 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1781 | |
995ff282 | 1782 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
21c80696 HL |
1783 | return 1; |
1784 | } | |
1785 | ||
1786 | QUIC_NEEDS_LOCK | |
1787 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs) | |
1788 | { | |
1789 | QUIC_XSO *xso = NULL; | |
1790 | ||
8ee3ee10 | 1791 | if ((xso = OPENSSL_zalloc(sizeof(*xso))) == NULL) { |
a954f761 | 1792 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_CRYPTO_LIB, NULL); |
21c80696 | 1793 | goto err; |
8ee3ee10 | 1794 | } |
21c80696 | 1795 | |
8ee3ee10 | 1796 | if (!ossl_ssl_init(&xso->ssl, qc->ssl.ctx, qc->ssl.method, SSL_TYPE_QUIC_XSO)) { |
a954f761 | 1797 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
21c80696 | 1798 | goto err; |
8ee3ee10 | 1799 | } |
21c80696 | 1800 | |
9cab4bd5 | 1801 | /* XSO refs QC */ |
8ee3ee10 | 1802 | if (!SSL_up_ref(&qc->ssl)) { |
a954f761 | 1803 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_SSL_LIB, NULL); |
9cab4bd5 | 1804 | goto err; |
8ee3ee10 | 1805 | } |
9cab4bd5 | 1806 | |
21c80696 | 1807 | xso->conn = qc; |
21c80696 | 1808 | xso->ssl_mode = qc->default_ssl_mode; |
db2f98c4 HL |
1809 | xso->ssl_options |
1810 | = qc->default_ssl_options & OSSL_QUIC_PERMITTED_OPTIONS_STREAM; | |
faa3a180 | 1811 | xso->last_error = SSL_ERROR_NONE; |
21c80696 HL |
1812 | |
1813 | xso->stream = qs; | |
1814 | ||
1815 | ++qc->num_xso; | |
db2f98c4 | 1816 | xso_update_options(xso); |
21c80696 HL |
1817 | return xso; |
1818 | ||
1819 | err: | |
1820 | OPENSSL_free(xso); | |
1821 | return NULL; | |
1822 | } | |
1823 | ||
9d6bd3d3 HL |
1824 | struct quic_new_stream_wait_args { |
1825 | QUIC_CONNECTION *qc; | |
1826 | int is_uni; | |
1827 | }; | |
1828 | ||
1829 | static int quic_new_stream_wait(void *arg) | |
1830 | { | |
1831 | struct quic_new_stream_wait_args *args = arg; | |
1832 | QUIC_CONNECTION *qc = args->qc; | |
1833 | ||
1834 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) | |
1835 | return -1; | |
1836 | ||
1837 | if (ossl_quic_channel_is_new_local_stream_admissible(qc->ch, args->is_uni)) | |
1838 | return 1; | |
1839 | ||
1840 | return 0; | |
1841 | } | |
1842 | ||
13ac037d | 1843 | /* locking depends on need_lock */ |
faa3a180 | 1844 | static SSL *quic_conn_stream_new(QCTX *ctx, uint64_t flags, int need_lock) |
cb5c208b | 1845 | { |
9d6bd3d3 | 1846 | int ret; |
faa3a180 | 1847 | QUIC_CONNECTION *qc = ctx->qc; |
cb5c208b | 1848 | QUIC_XSO *xso = NULL; |
21c80696 | 1849 | QUIC_STREAM *qs = NULL; |
2dbc39de | 1850 | int is_uni = ((flags & SSL_STREAM_FLAG_UNI) != 0); |
9d6bd3d3 HL |
1851 | int no_blocking = ((flags & SSL_STREAM_FLAG_NO_BLOCK) != 0); |
1852 | int advance = ((flags & SSL_STREAM_FLAG_ADVANCE) != 0); | |
cb5c208b | 1853 | |
13ac037d HL |
1854 | if (need_lock) |
1855 | quic_lock(qc); | |
2dbc39de | 1856 | |
6d6b3a03 | 1857 | if (!quic_mutation_allowed(qc, /*req_active=*/0)) { |
a954f761 | 1858 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2dbc39de HL |
1859 | goto err; |
1860 | } | |
1861 | ||
9d6bd3d3 HL |
1862 | if (!advance |
1863 | && !ossl_quic_channel_is_new_local_stream_admissible(qc->ch, is_uni)) { | |
1864 | struct quic_new_stream_wait_args args; | |
1865 | ||
1866 | /* | |
1867 | * Stream count flow control currently doesn't permit this stream to be | |
1868 | * opened. | |
1869 | */ | |
1870 | if (no_blocking || !qc_blocking_mode(qc)) { | |
96fe5e5f | 1871 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_STREAM_COUNT_LIMITED, NULL); |
9d6bd3d3 HL |
1872 | goto err; |
1873 | } | |
1874 | ||
1875 | args.qc = qc; | |
1876 | args.is_uni = is_uni; | |
1877 | ||
1878 | /* Blocking mode - wait until we can get a stream. */ | |
1879 | ret = block_until_pred(ctx->qc, quic_new_stream_wait, &args, 0); | |
1880 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { | |
96fe5e5f | 1881 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
9d6bd3d3 HL |
1882 | goto err; /* Shutdown before completion */ |
1883 | } else if (ret <= 0) { | |
96fe5e5f | 1884 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
9d6bd3d3 HL |
1885 | goto err; /* Non-protocol error */ |
1886 | } | |
1887 | } | |
1888 | ||
13ac037d | 1889 | qs = ossl_quic_channel_new_stream_local(qc->ch, is_uni); |
96014840 | 1890 | if (qs == NULL) { |
a954f761 | 1891 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
2dbc39de | 1892 | goto err; |
96014840 | 1893 | } |
cb5c208b | 1894 | |
13ac037d | 1895 | xso = create_xso_from_stream(qc, qs); |
8ee3ee10 | 1896 | if (xso == NULL) |
cb5c208b HL |
1897 | goto err; |
1898 | ||
13ac037d HL |
1899 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
1900 | if (need_lock) | |
1901 | quic_unlock(qc); | |
1902 | ||
cb5c208b HL |
1903 | return &xso->ssl; |
1904 | ||
1905 | err: | |
1906 | OPENSSL_free(xso); | |
13ac037d HL |
1907 | ossl_quic_stream_map_release(ossl_quic_channel_get_qsm(qc->ch), qs); |
1908 | if (need_lock) | |
1909 | quic_unlock(qc); | |
1910 | ||
cb5c208b | 1911 | return NULL; |
13ac037d HL |
1912 | |
1913 | } | |
1914 | ||
1915 | QUIC_TAKES_LOCK | |
1916 | SSL *ossl_quic_conn_stream_new(SSL *s, uint64_t flags) | |
1917 | { | |
1918 | QCTX ctx; | |
1919 | ||
a954f761 | 1920 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
13ac037d HL |
1921 | return NULL; |
1922 | ||
faa3a180 | 1923 | return quic_conn_stream_new(&ctx, flags, /*need_lock=*/1); |
cb5c208b HL |
1924 | } |
1925 | ||
22d53c88 HL |
1926 | /* |
1927 | * QUIC Front-End I/O API: Steady-State Operations | |
1928 | * =============================================== | |
1929 | * | |
1930 | * Here we dispatch calls to the steady-state front-end I/O API functions; that | |
1931 | * is, the functions used during the established phase of a QUIC connection | |
1932 | * (e.g. SSL_read, SSL_write). | |
1933 | * | |
1934 | * Each function must handle both blocking and non-blocking modes. As discussed | |
1935 | * above, all QUIC I/O is implemented using non-blocking mode internally. | |
1936 | * | |
1937 | * SSL_get_error => partially implemented by ossl_quic_get_error | |
1938 | * (BIO/)SSL_read => ossl_quic_read | |
1939 | * (BIO/)SSL_write => ossl_quic_write | |
1940 | * SSL_pending => ossl_quic_pending | |
a9979965 | 1941 | * SSL_stream_conclude => ossl_quic_conn_stream_conclude |
2525109f | 1942 | * SSL_key_update => ossl_quic_key_update |
22d53c88 HL |
1943 | */ |
1944 | ||
1945 | /* SSL_get_error */ | |
072328dd | 1946 | int ossl_quic_get_error(const SSL *s, int i) |
e44795bd | 1947 | { |
072328dd | 1948 | QCTX ctx; |
5c3474ea | 1949 | int net_error, last_error; |
072328dd HL |
1950 | |
1951 | if (!expect_quic(s, &ctx)) | |
1952 | return 0; | |
1953 | ||
5c3474ea TM |
1954 | quic_lock(ctx.qc); |
1955 | net_error = ossl_quic_channel_net_error(ctx.qc->ch); | |
1956 | last_error = ctx.is_stream ? ctx.xso->last_error : ctx.qc->last_error; | |
1957 | quic_unlock(ctx.qc); | |
1958 | ||
1959 | if (net_error) | |
1960 | return SSL_ERROR_SYSCALL; | |
1961 | ||
1962 | return last_error; | |
e44795bd TM |
1963 | } |
1964 | ||
22d53c88 HL |
1965 | /* |
1966 | * SSL_write | |
1967 | * --------- | |
1968 | * | |
1969 | * The set of functions below provide the implementation of the public SSL_write | |
1970 | * function. We must handle: | |
1971 | * | |
1972 | * - both blocking and non-blocking operation at the application level, | |
1973 | * depending on how we are configured; | |
1974 | * | |
1975 | * - SSL_MODE_ENABLE_PARTIAL_WRITE being on or off; | |
1976 | * | |
1977 | * - SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER. | |
1978 | * | |
1979 | */ | |
4847599b | 1980 | QUIC_NEEDS_LOCK |
cb5c208b | 1981 | static void quic_post_write(QUIC_XSO *xso, int did_append, int do_tick) |
22d53c88 HL |
1982 | { |
1983 | /* | |
1984 | * We have appended at least one byte to the stream. | |
1985 | * Potentially mark stream as active, depending on FC. | |
1986 | */ | |
1987 | if (did_append) | |
cb5c208b HL |
1988 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(xso->conn->ch), |
1989 | xso->stream); | |
22d53c88 HL |
1990 | |
1991 | /* | |
1992 | * Try and send. | |
1993 | * | |
44cb36d0 TM |
1994 | * TODO(QUIC FUTURE): It is probably inefficient to try and do this |
1995 | * immediately, plus we should eventually consider Nagle's algorithm. | |
22d53c88 HL |
1996 | */ |
1997 | if (do_tick) | |
cb5c208b | 1998 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(xso->conn->ch), 0); |
22d53c88 HL |
1999 | } |
2000 | ||
2001 | struct quic_write_again_args { | |
cb5c208b | 2002 | QUIC_XSO *xso; |
22d53c88 HL |
2003 | const unsigned char *buf; |
2004 | size_t len; | |
2005 | size_t total_written; | |
abfe3d51 | 2006 | int err; |
22d53c88 HL |
2007 | }; |
2008 | ||
4847599b | 2009 | QUIC_NEEDS_LOCK |
22d53c88 HL |
2010 | static int quic_write_again(void *arg) |
2011 | { | |
2012 | struct quic_write_again_args *args = arg; | |
2013 | size_t actual_written = 0; | |
2014 | ||
6d6b3a03 | 2015 | if (!quic_mutation_allowed(args->xso->conn, /*req_active=*/1)) |
22d53c88 HL |
2016 | /* If connection is torn down due to an error while blocking, stop. */ |
2017 | return -2; | |
2018 | ||
abfe3d51 HL |
2019 | if (!quic_validate_for_write(args->xso, &args->err)) |
2020 | /* | |
2021 | * Stream may have become invalid for write due to connection events | |
2022 | * while we blocked. | |
2023 | */ | |
2024 | return -2; | |
2025 | ||
2026 | args->err = ERR_R_INTERNAL_ERROR; | |
cb5c208b | 2027 | if (!ossl_quic_sstream_append(args->xso->stream->sstream, |
22d53c88 HL |
2028 | args->buf, args->len, &actual_written)) |
2029 | return -2; | |
2030 | ||
cb5c208b | 2031 | quic_post_write(args->xso, actual_written > 0, 0); |
22d53c88 HL |
2032 | |
2033 | args->buf += actual_written; | |
2034 | args->len -= actual_written; | |
2035 | args->total_written += actual_written; | |
2036 | ||
3f0c310b | 2037 | if (args->len == 0) |
22d53c88 HL |
2038 | /* Written everything, done. */ |
2039 | return 1; | |
2040 | ||
2041 | /* Not written everything yet, keep trying. */ | |
2042 | return 0; | |
2043 | } | |
2044 | ||
4847599b | 2045 | QUIC_NEEDS_LOCK |
faa3a180 | 2046 | static int quic_write_blocking(QCTX *ctx, const void *buf, size_t len, |
22d53c88 | 2047 | size_t *written) |
e44795bd | 2048 | { |
22d53c88 | 2049 | int res; |
faa3a180 | 2050 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
2051 | struct quic_write_again_args args; |
2052 | size_t actual_written = 0; | |
2053 | ||
2054 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 2055 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, |
22d53c88 HL |
2056 | &actual_written)) { |
2057 | /* Stream already finished or allocation error. */ | |
2058 | *written = 0; | |
faa3a180 | 2059 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2060 | } |
2061 | ||
cb5c208b | 2062 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
2063 | |
2064 | if (actual_written == len) { | |
2065 | /* Managed to append everything on the first try. */ | |
2066 | *written = actual_written; | |
2067 | return 1; | |
2068 | } | |
2069 | ||
2070 | /* | |
2071 | * We did not manage to append all of the data immediately, so the stream | |
2072 | * buffer has probably filled up. This means we need to block until some of | |
2073 | * it is freed up. | |
2074 | */ | |
cb5c208b | 2075 | args.xso = xso; |
22d53c88 HL |
2076 | args.buf = (const unsigned char *)buf + actual_written; |
2077 | args.len = len - actual_written; | |
2078 | args.total_written = 0; | |
abfe3d51 | 2079 | args.err = ERR_R_INTERNAL_ERROR; |
22d53c88 | 2080 | |
cb5c208b | 2081 | res = block_until_pred(xso->conn, quic_write_again, &args, 0); |
22d53c88 | 2082 | if (res <= 0) { |
6d6b3a03 | 2083 | if (!quic_mutation_allowed(xso->conn, /*req_active=*/1)) |
faa3a180 | 2084 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 2085 | else |
abfe3d51 | 2086 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, args.err, NULL); |
22d53c88 HL |
2087 | } |
2088 | ||
2089 | *written = args.total_written; | |
e44795bd TM |
2090 | return 1; |
2091 | } | |
2092 | ||
ca41f6b7 HL |
2093 | /* |
2094 | * Functions to manage All-or-Nothing (AON) (that is, non-ENABLE_PARTIAL_WRITE) | |
2095 | * write semantics. | |
2096 | */ | |
cb5c208b | 2097 | static void aon_write_begin(QUIC_XSO *xso, const unsigned char *buf, |
22d53c88 HL |
2098 | size_t buf_len, size_t already_sent) |
2099 | { | |
cb5c208b | 2100 | assert(!xso->aon_write_in_progress); |
22d53c88 | 2101 | |
cb5c208b HL |
2102 | xso->aon_write_in_progress = 1; |
2103 | xso->aon_buf_base = buf; | |
2104 | xso->aon_buf_pos = already_sent; | |
2105 | xso->aon_buf_len = buf_len; | |
22d53c88 HL |
2106 | } |
2107 | ||
cb5c208b | 2108 | static void aon_write_finish(QUIC_XSO *xso) |
22d53c88 | 2109 | { |
cb5c208b HL |
2110 | xso->aon_write_in_progress = 0; |
2111 | xso->aon_buf_base = NULL; | |
2112 | xso->aon_buf_pos = 0; | |
2113 | xso->aon_buf_len = 0; | |
22d53c88 HL |
2114 | } |
2115 | ||
4847599b | 2116 | QUIC_NEEDS_LOCK |
faa3a180 | 2117 | static int quic_write_nonblocking_aon(QCTX *ctx, const void *buf, |
22d53c88 | 2118 | size_t len, size_t *written) |
e44795bd | 2119 | { |
faa3a180 | 2120 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
2121 | const void *actual_buf; |
2122 | size_t actual_len, actual_written = 0; | |
2123 | int accept_moving_buffer | |
cb5c208b | 2124 | = ((xso->ssl_mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER) != 0); |
22d53c88 | 2125 | |
cb5c208b | 2126 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2127 | /* |
2128 | * We are in the middle of an AON write (i.e., a previous write did not | |
75b2920a HL |
2129 | * manage to append all data to the SSTREAM and we have Enable Partial |
2130 | * Write (EPW) mode disabled.) | |
22d53c88 | 2131 | */ |
cb5c208b HL |
2132 | if ((!accept_moving_buffer && xso->aon_buf_base != buf) |
2133 | || len != xso->aon_buf_len) | |
22d53c88 HL |
2134 | /* |
2135 | * Pointer must not have changed if we are not in accept moving | |
2136 | * buffer mode. Length must never change. | |
2137 | */ | |
faa3a180 | 2138 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BAD_WRITE_RETRY, NULL); |
22d53c88 | 2139 | |
cb5c208b HL |
2140 | actual_buf = (unsigned char *)buf + xso->aon_buf_pos; |
2141 | actual_len = len - xso->aon_buf_pos; | |
22d53c88 HL |
2142 | assert(actual_len > 0); |
2143 | } else { | |
2144 | actual_buf = buf; | |
2145 | actual_len = len; | |
2146 | } | |
2147 | ||
2148 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 2149 | if (!ossl_quic_sstream_append(xso->stream->sstream, actual_buf, actual_len, |
22d53c88 HL |
2150 | &actual_written)) { |
2151 | /* Stream already finished or allocation error. */ | |
2152 | *written = 0; | |
faa3a180 | 2153 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2154 | } |
2155 | ||
cb5c208b | 2156 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
2157 | |
2158 | if (actual_written == actual_len) { | |
2159 | /* We have sent everything. */ | |
cb5c208b | 2160 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2161 | /* |
2162 | * We have sent everything, and we were in the middle of an AON | |
2163 | * write. The output write length is the total length of the AON | |
2164 | * buffer, not however many bytes we managed to write to the stream | |
2165 | * in this call. | |
2166 | */ | |
cb5c208b HL |
2167 | *written = xso->aon_buf_len; |
2168 | aon_write_finish(xso); | |
22d53c88 HL |
2169 | } else { |
2170 | *written = actual_written; | |
2171 | } | |
2172 | ||
2173 | return 1; | |
2174 | } | |
2175 | ||
cb5c208b | 2176 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2177 | /* |
2178 | * AON write is in progress but we have not written everything yet. We | |
2179 | * may have managed to send zero bytes, or some number of bytes less | |
2180 | * than the total remaining which need to be appended during this | |
2181 | * AON operation. | |
2182 | */ | |
cb5c208b HL |
2183 | xso->aon_buf_pos += actual_written; |
2184 | assert(xso->aon_buf_pos < xso->aon_buf_len); | |
faa3a180 | 2185 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
22d53c88 HL |
2186 | } |
2187 | ||
08e49012 | 2188 | /* |
22d53c88 HL |
2189 | * Not in an existing AON operation but partial write is not enabled, so we |
2190 | * need to begin a new AON operation. However we needn't bother if we didn't | |
2191 | * actually append anything. | |
08e49012 | 2192 | */ |
22d53c88 | 2193 | if (actual_written > 0) |
cb5c208b | 2194 | aon_write_begin(xso, buf, len, actual_written); |
e44795bd | 2195 | |
22d53c88 HL |
2196 | /* |
2197 | * AON - We do not publicly admit to having appended anything until AON | |
2198 | * completes. | |
2199 | */ | |
2200 | *written = 0; | |
faa3a180 | 2201 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
e44795bd TM |
2202 | } |
2203 | ||
4847599b | 2204 | QUIC_NEEDS_LOCK |
faa3a180 | 2205 | static int quic_write_nonblocking_epw(QCTX *ctx, const void *buf, size_t len, |
22d53c88 | 2206 | size_t *written) |
e44795bd | 2207 | { |
faa3a180 HL |
2208 | QUIC_XSO *xso = ctx->xso; |
2209 | ||
22d53c88 | 2210 | /* Simple best effort operation. */ |
cb5c208b | 2211 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, written)) { |
22d53c88 HL |
2212 | /* Stream already finished or allocation error. */ |
2213 | *written = 0; | |
faa3a180 | 2214 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2215 | } |
2216 | ||
cb5c208b | 2217 | quic_post_write(xso, *written > 0, 1); |
e44795bd TM |
2218 | return 1; |
2219 | } | |
d5ab48a1 | 2220 | |
abfe3d51 HL |
2221 | QUIC_NEEDS_LOCK |
2222 | static int quic_validate_for_write(QUIC_XSO *xso, int *err) | |
2223 | { | |
2224 | QUIC_STREAM_MAP *qsm; | |
2225 | ||
2226 | if (xso == NULL || xso->stream == NULL) { | |
2227 | *err = ERR_R_INTERNAL_ERROR; | |
2228 | return 0; | |
2229 | } | |
2230 | ||
2231 | switch (xso->stream->send_state) { | |
2232 | default: | |
2233 | case QUIC_SSTREAM_STATE_NONE: | |
2234 | *err = SSL_R_STREAM_RECV_ONLY; | |
2235 | return 0; | |
2236 | ||
2237 | case QUIC_SSTREAM_STATE_READY: | |
2238 | qsm = ossl_quic_channel_get_qsm(xso->conn->ch); | |
2239 | ||
2240 | if (!ossl_quic_stream_map_ensure_send_part_id(qsm, xso->stream)) { | |
2241 | *err = ERR_R_INTERNAL_ERROR; | |
2242 | return 0; | |
2243 | } | |
2244 | ||
2245 | /* FALLTHROUGH */ | |
2246 | case QUIC_SSTREAM_STATE_SEND: | |
2247 | case QUIC_SSTREAM_STATE_DATA_SENT: | |
2248 | case QUIC_SSTREAM_STATE_DATA_RECVD: | |
2249 | if (ossl_quic_sstream_get_final_size(xso->stream->sstream, NULL)) { | |
2250 | *err = SSL_R_STREAM_FINISHED; | |
2251 | return 0; | |
2252 | } | |
2253 | ||
2254 | return 1; | |
2255 | ||
2256 | case QUIC_SSTREAM_STATE_RESET_SENT: | |
2257 | case QUIC_SSTREAM_STATE_RESET_RECVD: | |
2258 | *err = SSL_R_STREAM_RESET; | |
2259 | return 0; | |
2260 | } | |
2261 | } | |
2262 | ||
a8489257 | 2263 | QUIC_TAKES_LOCK |
22d53c88 | 2264 | int ossl_quic_write(SSL *s, const void *buf, size_t len, size_t *written) |
d5ab48a1 | 2265 | { |
a8489257 | 2266 | int ret; |
072328dd | 2267 | QCTX ctx; |
abfe3d51 | 2268 | int partial_write, err; |
22d53c88 HL |
2269 | |
2270 | *written = 0; | |
2271 | ||
a954f761 | 2272 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, /*io=*/1, &ctx)) |
8b7be3aa | 2273 | return 0; |
a8489257 | 2274 | |
cb5c208b | 2275 | partial_write = ((ctx.xso->ssl_mode & SSL_MODE_ENABLE_PARTIAL_WRITE) != 0); |
072328dd | 2276 | |
6d6b3a03 | 2277 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/0)) { |
faa3a180 | 2278 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2279 | goto out; |
2280 | } | |
22d53c88 | 2281 | |
ca41f6b7 HL |
2282 | /* |
2283 | * If we haven't finished the handshake, try to advance it. | |
2284 | * We don't accept writes until the handshake is completed. | |
2285 | */ | |
faa3a180 | 2286 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2287 | ret = 0; |
2288 | goto out; | |
2289 | } | |
ca41f6b7 | 2290 | |
abfe3d51 HL |
2291 | /* Ensure correct stream state, stream send part not concluded, etc. */ |
2292 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2293 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2294 | goto out; |
2295 | } | |
22d53c88 | 2296 | |
33f6ad17 MC |
2297 | if (len == 0) { |
2298 | ret = 1; | |
2299 | goto out; | |
2300 | } | |
2301 | ||
cb5c208b | 2302 | if (xso_blocking_mode(ctx.xso)) |
faa3a180 | 2303 | ret = quic_write_blocking(&ctx, buf, len, written); |
22d53c88 | 2304 | else if (partial_write) |
faa3a180 | 2305 | ret = quic_write_nonblocking_epw(&ctx, buf, len, written); |
22d53c88 | 2306 | else |
faa3a180 | 2307 | ret = quic_write_nonblocking_aon(&ctx, buf, len, written); |
a8489257 HL |
2308 | |
2309 | out: | |
072328dd | 2310 | quic_unlock(ctx.qc); |
a8489257 | 2311 | return ret; |
d5ab48a1 RL |
2312 | } |
2313 | ||
2314 | /* | |
22d53c88 HL |
2315 | * SSL_read |
2316 | * -------- | |
d5ab48a1 | 2317 | */ |
22d53c88 | 2318 | struct quic_read_again_args { |
faa3a180 | 2319 | QCTX *ctx; |
22d53c88 HL |
2320 | QUIC_STREAM *stream; |
2321 | void *buf; | |
2322 | size_t len; | |
2323 | size_t *bytes_read; | |
2324 | int peek; | |
2325 | }; | |
2326 | ||
e0bd2825 HL |
2327 | QUIC_NEEDS_LOCK |
2328 | static int quic_validate_for_read(QUIC_XSO *xso, int *err, int *eos) | |
2329 | { | |
08d4b7eb | 2330 | QUIC_STREAM_MAP *qsm; |
e0bd2825 | 2331 | |
5ed3a435 HL |
2332 | *eos = 0; |
2333 | ||
e0bd2825 HL |
2334 | if (xso == NULL || xso->stream == NULL) { |
2335 | *err = ERR_R_INTERNAL_ERROR; | |
2336 | return 0; | |
2337 | } | |
2338 | ||
2339 | switch (xso->stream->recv_state) { | |
2340 | default: | |
2341 | case QUIC_RSTREAM_STATE_NONE: | |
2342 | *err = SSL_R_STREAM_SEND_ONLY; | |
2343 | return 0; | |
2344 | ||
2345 | case QUIC_RSTREAM_STATE_RECV: | |
2346 | case QUIC_RSTREAM_STATE_SIZE_KNOWN: | |
2347 | case QUIC_RSTREAM_STATE_DATA_RECVD: | |
2348 | return 1; | |
2349 | ||
2350 | case QUIC_RSTREAM_STATE_DATA_READ: | |
2351 | *eos = 1; | |
2352 | return 0; | |
2353 | ||
2354 | case QUIC_RSTREAM_STATE_RESET_RECVD: | |
08d4b7eb HL |
2355 | qsm = ossl_quic_channel_get_qsm(xso->conn->ch); |
2356 | ossl_quic_stream_map_notify_app_read_reset_recv_part(qsm, xso->stream); | |
2357 | ||
2358 | /* FALLTHROUGH */ | |
e0bd2825 HL |
2359 | case QUIC_RSTREAM_STATE_RESET_READ: |
2360 | *err = SSL_R_STREAM_RESET; | |
2361 | return 0; | |
2362 | } | |
2363 | } | |
2364 | ||
4847599b | 2365 | QUIC_NEEDS_LOCK |
faa3a180 | 2366 | static int quic_read_actual(QCTX *ctx, |
22d53c88 HL |
2367 | QUIC_STREAM *stream, |
2368 | void *buf, size_t buf_len, | |
2369 | size_t *bytes_read, | |
2370 | int peek) | |
d5ab48a1 | 2371 | { |
e0bd2825 | 2372 | int is_fin = 0, err, eos; |
faa3a180 | 2373 | QUIC_CONNECTION *qc = ctx->qc; |
22d53c88 | 2374 | |
e0bd2825 HL |
2375 | if (!quic_validate_for_read(ctx->xso, &err, &eos)) { |
2376 | if (eos) | |
2377 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); | |
2378 | else | |
2379 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, err, NULL); | |
2380 | } | |
2381 | ||
22d53c88 HL |
2382 | if (peek) { |
2383 | if (!ossl_quic_rstream_peek(stream->rstream, buf, buf_len, | |
2384 | bytes_read, &is_fin)) | |
faa3a180 | 2385 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2386 | |
2387 | } else { | |
2388 | if (!ossl_quic_rstream_read(stream->rstream, buf, buf_len, | |
2389 | bytes_read, &is_fin)) | |
faa3a180 | 2390 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2391 | } |
2392 | ||
2393 | if (!peek) { | |
2394 | if (*bytes_read > 0) { | |
2395 | /* | |
2396 | * We have read at least one byte from the stream. Inform stream-level | |
2397 | * RXFC of the retirement of controlled bytes. Update the active stream | |
2398 | * status (the RXFC may now want to emit a frame granting more credit to | |
2399 | * the peer). | |
2400 | */ | |
2401 | OSSL_RTT_INFO rtt_info; | |
d50e750e | 2402 | |
22d53c88 HL |
2403 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(qc->ch), &rtt_info); |
2404 | ||
cb5c208b | 2405 | if (!ossl_quic_rxfc_on_retire(&stream->rxfc, *bytes_read, |
22d53c88 | 2406 | rtt_info.smoothed_rtt)) |
faa3a180 | 2407 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2408 | } |
2409 | ||
08d4b7eb HL |
2410 | if (is_fin && !peek) { |
2411 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(ctx->qc->ch); | |
2412 | ||
2413 | ossl_quic_stream_map_notify_totally_read(qsm, ctx->xso->stream); | |
2414 | } | |
22d53c88 HL |
2415 | |
2416 | if (*bytes_read > 0) | |
2417 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(qc->ch), | |
cb5c208b | 2418 | stream); |
22d53c88 HL |
2419 | } |
2420 | ||
72622c0b MC |
2421 | if (*bytes_read == 0 && is_fin) |
2422 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); | |
2423 | ||
d5ab48a1 RL |
2424 | return 1; |
2425 | } | |
2426 | ||
4847599b | 2427 | QUIC_NEEDS_LOCK |
22d53c88 | 2428 | static int quic_read_again(void *arg) |
d5ab48a1 | 2429 | { |
22d53c88 HL |
2430 | struct quic_read_again_args *args = arg; |
2431 | ||
6d6b3a03 | 2432 | if (!quic_mutation_allowed(args->ctx->qc, /*req_active=*/1)) { |
22d53c88 | 2433 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 2434 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
ca41f6b7 | 2435 | return -1; |
a9979965 | 2436 | } |
22d53c88 | 2437 | |
faa3a180 | 2438 | if (!quic_read_actual(args->ctx, args->stream, |
22d53c88 HL |
2439 | args->buf, args->len, args->bytes_read, |
2440 | args->peek)) | |
2441 | return -1; | |
2442 | ||
2443 | if (*args->bytes_read > 0) | |
2444 | /* got at least one byte, the SSL_read op can finish now */ | |
2445 | return 1; | |
2446 | ||
81b6b43c | 2447 | return 0; /* did not read anything, keep trying */ |
d5ab48a1 RL |
2448 | } |
2449 | ||
a8489257 | 2450 | QUIC_TAKES_LOCK |
22d53c88 | 2451 | static int quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read, int peek) |
d5ab48a1 | 2452 | { |
a8489257 | 2453 | int ret, res; |
072328dd | 2454 | QCTX ctx; |
22d53c88 HL |
2455 | struct quic_read_again_args args; |
2456 | ||
2457 | *bytes_read = 0; | |
2458 | ||
8b7be3aa | 2459 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
2460 | return 0; |
2461 | ||
a954f761 | 2462 | ctx.in_io = 1; |
072328dd | 2463 | quic_lock(ctx.qc); |
a8489257 | 2464 | |
6d6b3a03 | 2465 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/0)) { |
faa3a180 | 2466 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2467 | goto out; |
2468 | } | |
22d53c88 | 2469 | |
a9979965 | 2470 | /* If we haven't finished the handshake, try to advance it. */ |
faa3a180 | 2471 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2472 | ret = 0; /* ossl_quic_do_handshake raised error here */ |
2473 | goto out; | |
2474 | } | |
22d53c88 | 2475 | |
8b7be3aa HL |
2476 | if (ctx.xso == NULL) { |
2477 | /* | |
2478 | * Called on a QCSO and we don't currently have a default stream. | |
2479 | * | |
2480 | * Wait until we get a stream initiated by the peer (blocking mode) or | |
2481 | * fail if we don't have one yet (non-blocking mode). | |
2482 | */ | |
faa3a180 | 2483 | if (!qc_wait_for_default_xso_for_read(&ctx)) { |
8b7be3aa HL |
2484 | ret = 0; /* error already raised here */ |
2485 | goto out; | |
2486 | } | |
2487 | ||
2488 | ctx.xso = ctx.qc->default_xso; | |
2489 | } | |
2490 | ||
faa3a180 | 2491 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { |
a8489257 HL |
2492 | ret = 0; /* quic_read_actual raised error here */ |
2493 | goto out; | |
2494 | } | |
22d53c88 HL |
2495 | |
2496 | if (*bytes_read > 0) { | |
2497 | /* | |
2498 | * Even though we succeeded, tick the reactor here to ensure we are | |
2499 | * handling other aspects of the QUIC connection. | |
2500 | */ | |
072328dd | 2501 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
a8489257 | 2502 | ret = 1; |
cb5c208b | 2503 | } else if (xso_blocking_mode(ctx.xso)) { |
22d53c88 HL |
2504 | /* |
2505 | * We were not able to read anything immediately, so our stream | |
2506 | * buffer is empty. This means we need to block until we get | |
2507 | * at least one byte. | |
2508 | */ | |
faa3a180 | 2509 | args.ctx = &ctx; |
cb5c208b | 2510 | args.stream = ctx.xso->stream; |
22d53c88 HL |
2511 | args.buf = buf; |
2512 | args.len = len; | |
2513 | args.bytes_read = bytes_read; | |
2514 | args.peek = peek; | |
2515 | ||
072328dd | 2516 | res = block_until_pred(ctx.qc, quic_read_again, &args, 0); |
a8489257 | 2517 | if (res == 0) { |
faa3a180 | 2518 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 HL |
2519 | goto out; |
2520 | } else if (res < 0) { | |
2521 | ret = 0; /* quic_read_again raised error here */ | |
2522 | goto out; | |
2523 | } | |
22d53c88 | 2524 | |
a8489257 | 2525 | ret = 1; |
af8b52cf | 2526 | } else { |
780b2527 HL |
2527 | /* |
2528 | * We did not get any bytes and are not in blocking mode. | |
2529 | * Tick to see if this delivers any more. | |
2530 | */ | |
2531 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); | |
2532 | ||
2533 | /* Try the read again. */ | |
2534 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { | |
2535 | ret = 0; /* quic_read_actual raised error here */ | |
2536 | goto out; | |
2537 | } | |
2538 | ||
2539 | if (*bytes_read > 0) | |
2540 | ret = 1; /* Succeeded this time. */ | |
2541 | else | |
2542 | ret = QUIC_RAISE_NORMAL_ERROR(&ctx, SSL_ERROR_WANT_READ); | |
af8b52cf | 2543 | } |
a8489257 HL |
2544 | |
2545 | out: | |
072328dd | 2546 | quic_unlock(ctx.qc); |
a8489257 | 2547 | return ret; |
d5ab48a1 RL |
2548 | } |
2549 | ||
22d53c88 HL |
2550 | int ossl_quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read) |
2551 | { | |
2552 | return quic_read(s, buf, len, bytes_read, 0); | |
2553 | } | |
2554 | ||
2555 | int ossl_quic_peek(SSL *s, void *buf, size_t len, size_t *bytes_read) | |
2556 | { | |
2557 | return quic_read(s, buf, len, bytes_read, 1); | |
2558 | } | |
2559 | ||
2560 | /* | |
2561 | * SSL_pending | |
2562 | * ----------- | |
2563 | */ | |
9280d26a | 2564 | |
a8489257 | 2565 | QUIC_TAKES_LOCK |
d6e7ebba | 2566 | static size_t ossl_quic_pending_int(const SSL *s, int check_channel) |
22d53c88 | 2567 | { |
072328dd | 2568 | QCTX ctx; |
433d107a | 2569 | size_t avail = 0; |
22d53c88 HL |
2570 | int fin = 0; |
2571 | ||
c31f0612 MC |
2572 | |
2573 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
2574 | return 0; |
2575 | ||
c31f0612 MC |
2576 | quic_lock(ctx.qc); |
2577 | ||
8ee3ee10 | 2578 | if (ctx.xso == NULL) { |
a954f761 | 2579 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_NO_STREAM, NULL); |
c31f0612 | 2580 | goto out; |
8ee3ee10 | 2581 | } |
c31f0612 | 2582 | |
2f018d14 | 2583 | if (ctx.xso->stream == NULL |
8ee3ee10 | 2584 | || !ossl_quic_stream_has_recv_buffer(ctx.xso->stream)) { |
a954f761 | 2585 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 | 2586 | goto out; |
8ee3ee10 | 2587 | } |
22d53c88 | 2588 | |
cb5c208b | 2589 | if (!ossl_quic_rstream_available(ctx.xso->stream->rstream, &avail, &fin)) |
a8489257 | 2590 | avail = 0; |
22d53c88 | 2591 | |
d6e7ebba HL |
2592 | if (avail == 0 && check_channel && ossl_quic_channel_has_pending(ctx.qc->ch)) |
2593 | avail = 1; | |
2594 | ||
a8489257 | 2595 | out: |
072328dd | 2596 | quic_unlock(ctx.qc); |
22d53c88 HL |
2597 | return avail; |
2598 | } | |
2599 | ||
560470b5 MC |
2600 | size_t ossl_quic_pending(const SSL *s) |
2601 | { | |
d6e7ebba | 2602 | return ossl_quic_pending_int(s, /*check_channel=*/0); |
560470b5 MC |
2603 | } |
2604 | ||
072328dd | 2605 | int ossl_quic_has_pending(const SSL *s) |
560470b5 | 2606 | { |
9280d26a | 2607 | /* Do we have app-side pending data or pending URXEs or RXEs? */ |
d6e7ebba | 2608 | return ossl_quic_pending_int(s, /*check_channel=*/1) > 0; |
560470b5 MC |
2609 | } |
2610 | ||
a9979965 HL |
2611 | /* |
2612 | * SSL_stream_conclude | |
2613 | * ------------------- | |
2614 | */ | |
a8489257 | 2615 | QUIC_TAKES_LOCK |
072328dd | 2616 | int ossl_quic_conn_stream_conclude(SSL *s) |
a9979965 | 2617 | { |
072328dd HL |
2618 | QCTX ctx; |
2619 | QUIC_STREAM *qs; | |
abfe3d51 | 2620 | int err; |
072328dd | 2621 | |
a954f761 | 2622 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, /*io=*/0, &ctx)) |
072328dd HL |
2623 | return 0; |
2624 | ||
cb5c208b | 2625 | qs = ctx.xso->stream; |
a9979965 | 2626 | |
6d6b3a03 | 2627 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/1)) { |
072328dd | 2628 | quic_unlock(ctx.qc); |
abfe3d51 HL |
2629 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2630 | } | |
2631 | ||
2632 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2633 | quic_unlock(ctx.qc); | |
2634 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2635 | } |
2636 | ||
2f018d14 | 2637 | if (ossl_quic_sstream_get_final_size(qs->sstream, NULL)) { |
072328dd | 2638 | quic_unlock(ctx.qc); |
a9979965 | 2639 | return 1; |
a8489257 | 2640 | } |
a9979965 HL |
2641 | |
2642 | ossl_quic_sstream_fin(qs->sstream); | |
cb5c208b | 2643 | quic_post_write(ctx.xso, 1, 1); |
072328dd | 2644 | quic_unlock(ctx.qc); |
a9979965 HL |
2645 | return 1; |
2646 | } | |
2647 | ||
553a4e00 HL |
2648 | /* |
2649 | * SSL_inject_net_dgram | |
2650 | * -------------------- | |
2651 | */ | |
5129e594 | 2652 | QUIC_TAKES_LOCK |
553a4e00 HL |
2653 | int SSL_inject_net_dgram(SSL *s, const unsigned char *buf, |
2654 | size_t buf_len, | |
2655 | const BIO_ADDR *peer, | |
2656 | const BIO_ADDR *local) | |
2657 | { | |
5129e594 | 2658 | int ret; |
072328dd | 2659 | QCTX ctx; |
553a4e00 HL |
2660 | QUIC_DEMUX *demux; |
2661 | ||
072328dd | 2662 | if (!expect_quic(s, &ctx)) |
553a4e00 HL |
2663 | return 0; |
2664 | ||
072328dd | 2665 | quic_lock(ctx.qc); |
5129e594 | 2666 | |
072328dd | 2667 | demux = ossl_quic_channel_get0_demux(ctx.qc->ch); |
5129e594 HL |
2668 | ret = ossl_quic_demux_inject(demux, buf, buf_len, peer, local); |
2669 | ||
072328dd | 2670 | quic_unlock(ctx.qc); |
5129e594 | 2671 | return ret; |
553a4e00 HL |
2672 | } |
2673 | ||
020d0389 HL |
2674 | /* |
2675 | * SSL_get0_connection | |
2676 | * ------------------- | |
2677 | */ | |
2678 | SSL *ossl_quic_get0_connection(SSL *s) | |
2679 | { | |
2680 | QCTX ctx; | |
2681 | ||
2682 | if (!expect_quic(s, &ctx)) | |
2683 | return NULL; | |
2684 | ||
2685 | return &ctx.qc->ssl; | |
2686 | } | |
2687 | ||
1bca3f1b HL |
2688 | /* |
2689 | * SSL_get_stream_type | |
2690 | * ------------------- | |
2691 | */ | |
2692 | int ossl_quic_get_stream_type(SSL *s) | |
2693 | { | |
2694 | QCTX ctx; | |
2695 | ||
2696 | if (!expect_quic(s, &ctx)) | |
59c5c016 | 2697 | return SSL_STREAM_TYPE_BIDI; |
1bca3f1b HL |
2698 | |
2699 | if (ctx.xso == NULL) { | |
2700 | /* | |
59c5c016 HL |
2701 | * If deferred XSO creation has yet to occur, proceed according to the |
2702 | * default stream mode. If AUTO_BIDI or AUTO_UNI is set, we cannot know | |
2703 | * what kind of stream will be created yet, so return BIDI on the basis | |
2704 | * that at this time, the client still has the option of calling | |
2705 | * SSL_read() or SSL_write() first. | |
1bca3f1b | 2706 | */ |
59c5c016 HL |
2707 | if (ctx.qc->default_xso_created |
2708 | || ctx.qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
1bca3f1b | 2709 | return SSL_STREAM_TYPE_NONE; |
59c5c016 HL |
2710 | else |
2711 | return SSL_STREAM_TYPE_BIDI; | |
1bca3f1b HL |
2712 | } |
2713 | ||
2714 | if (ossl_quic_stream_is_bidi(ctx.xso->stream)) | |
2715 | return SSL_STREAM_TYPE_BIDI; | |
2716 | ||
2717 | if (ossl_quic_stream_is_server_init(ctx.xso->stream) != ctx.qc->as_server) | |
2718 | return SSL_STREAM_TYPE_READ; | |
2719 | else | |
2720 | return SSL_STREAM_TYPE_WRITE; | |
2721 | } | |
2722 | ||
19cb0887 HL |
2723 | /* |
2724 | * SSL_get_stream_id | |
2725 | * ----------------- | |
2726 | */ | |
cb68ce9f | 2727 | QUIC_TAKES_LOCK |
19cb0887 HL |
2728 | uint64_t ossl_quic_get_stream_id(SSL *s) |
2729 | { | |
2730 | QCTX ctx; | |
8b7be3aa | 2731 | uint64_t id; |
19cb0887 | 2732 | |
a954f761 | 2733 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, /*io=*/0, &ctx)) |
19cb0887 HL |
2734 | return UINT64_MAX; |
2735 | ||
8b7be3aa HL |
2736 | id = ctx.xso->stream->id; |
2737 | quic_unlock(ctx.qc); | |
2738 | ||
2739 | return id; | |
2740 | } | |
2741 | ||
2742 | /* | |
2743 | * SSL_set_default_stream_mode | |
2744 | * --------------------------- | |
2745 | */ | |
cb68ce9f | 2746 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2747 | int ossl_quic_set_default_stream_mode(SSL *s, uint32_t mode) |
2748 | { | |
2749 | QCTX ctx; | |
2750 | ||
a954f761 | 2751 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
8b7be3aa HL |
2752 | return 0; |
2753 | ||
2754 | quic_lock(ctx.qc); | |
2755 | ||
4669a3d7 HL |
2756 | if (ctx.qc->default_xso_created) { |
2757 | quic_unlock(ctx.qc); | |
a954f761 | 2758 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 2759 | "too late to change default stream mode"); |
4669a3d7 | 2760 | } |
8b7be3aa HL |
2761 | |
2762 | switch (mode) { | |
2763 | case SSL_DEFAULT_STREAM_MODE_NONE: | |
2764 | case SSL_DEFAULT_STREAM_MODE_AUTO_BIDI: | |
2765 | case SSL_DEFAULT_STREAM_MODE_AUTO_UNI: | |
2766 | ctx.qc->default_stream_mode = mode; | |
2767 | break; | |
2768 | default: | |
2769 | quic_unlock(ctx.qc); | |
a954f761 | 2770 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 | 2771 | "bad default stream type"); |
8b7be3aa HL |
2772 | } |
2773 | ||
2774 | quic_unlock(ctx.qc); | |
2775 | return 1; | |
2776 | } | |
2777 | ||
2778 | /* | |
2779 | * SSL_detach_stream | |
2780 | * ----------------- | |
2781 | */ | |
cb68ce9f | 2782 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2783 | SSL *ossl_quic_detach_stream(SSL *s) |
2784 | { | |
2785 | QCTX ctx; | |
9cab4bd5 | 2786 | QUIC_XSO *xso = NULL; |
8b7be3aa | 2787 | |
a954f761 | 2788 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
8b7be3aa HL |
2789 | return NULL; |
2790 | ||
2791 | quic_lock(ctx.qc); | |
2792 | ||
8b7be3aa | 2793 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 HL |
2794 | /* QC ref to any default XSO is transferred to us and to caller. */ |
2795 | qc_set_default_xso_keep_ref(ctx.qc, NULL, /*touch=*/1, &xso); | |
8b7be3aa HL |
2796 | |
2797 | quic_unlock(ctx.qc); | |
2798 | ||
9cab4bd5 | 2799 | return xso != NULL ? &xso->ssl : NULL; |
8b7be3aa HL |
2800 | } |
2801 | ||
2802 | /* | |
2803 | * SSL_attach_stream | |
2804 | * ----------------- | |
2805 | */ | |
cb68ce9f | 2806 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2807 | int ossl_quic_attach_stream(SSL *conn, SSL *stream) |
2808 | { | |
2809 | QCTX ctx; | |
9cab4bd5 HL |
2810 | QUIC_XSO *xso; |
2811 | int nref; | |
8b7be3aa | 2812 | |
a954f761 | 2813 | if (!expect_quic_conn_only(conn, /*io=*/0, &ctx)) |
8b7be3aa HL |
2814 | return 0; |
2815 | ||
2816 | if (stream == NULL || stream->type != SSL_TYPE_QUIC_XSO) | |
a954f761 | 2817 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_NULL_PARAMETER, |
8ee3ee10 | 2818 | "stream to attach must be a valid QUIC stream"); |
8b7be3aa | 2819 | |
9cab4bd5 HL |
2820 | xso = (QUIC_XSO *)stream; |
2821 | ||
8b7be3aa HL |
2822 | quic_lock(ctx.qc); |
2823 | ||
2824 | if (ctx.qc->default_xso != NULL) { | |
2825 | quic_unlock(ctx.qc); | |
a954f761 | 2826 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 2827 | "connection already has a default stream"); |
8b7be3aa HL |
2828 | } |
2829 | ||
9cab4bd5 HL |
2830 | /* |
2831 | * It is a caller error for the XSO being attached as a default XSO to have | |
2832 | * more than one ref. | |
2833 | */ | |
4eecc6aa | 2834 | if (!CRYPTO_GET_REF(&xso->ssl.references, &nref)) { |
9cab4bd5 | 2835 | quic_unlock(ctx.qc); |
a954f761 | 2836 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, |
8ee3ee10 | 2837 | "ref"); |
9cab4bd5 HL |
2838 | } |
2839 | ||
2840 | if (nref != 1) { | |
2841 | quic_unlock(ctx.qc); | |
a954f761 | 2842 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 TM |
2843 | "stream being attached must have " |
2844 | "only 1 reference"); | |
9cab4bd5 HL |
2845 | } |
2846 | ||
2847 | /* Caller's reference to the XSO is transferred to us. */ | |
8b7be3aa | 2848 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 | 2849 | qc_set_default_xso(ctx.qc, xso, /*touch=*/1); |
8b7be3aa HL |
2850 | |
2851 | quic_unlock(ctx.qc); | |
2852 | return 1; | |
19cb0887 HL |
2853 | } |
2854 | ||
8a90df34 | 2855 | /* |
83df44ae HL |
2856 | * SSL_set_incoming_stream_policy |
2857 | * ------------------------------ | |
8a90df34 | 2858 | */ |
995ff282 | 2859 | QUIC_NEEDS_LOCK |
83df44ae | 2860 | static int qc_get_effective_incoming_stream_policy(QUIC_CONNECTION *qc) |
995ff282 | 2861 | { |
83df44ae HL |
2862 | switch (qc->incoming_stream_policy) { |
2863 | case SSL_INCOMING_STREAM_POLICY_AUTO: | |
995ff282 HL |
2864 | if ((qc->default_xso == NULL && !qc->default_xso_created) |
2865 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
83df44ae | 2866 | return SSL_INCOMING_STREAM_POLICY_ACCEPT; |
995ff282 | 2867 | else |
83df44ae | 2868 | return SSL_INCOMING_STREAM_POLICY_REJECT; |
995ff282 HL |
2869 | |
2870 | default: | |
83df44ae | 2871 | return qc->incoming_stream_policy; |
995ff282 HL |
2872 | } |
2873 | } | |
2874 | ||
2875 | QUIC_NEEDS_LOCK | |
2876 | static void qc_update_reject_policy(QUIC_CONNECTION *qc) | |
2877 | { | |
83df44ae HL |
2878 | int policy = qc_get_effective_incoming_stream_policy(qc); |
2879 | int enable_reject = (policy == SSL_INCOMING_STREAM_POLICY_REJECT); | |
995ff282 HL |
2880 | |
2881 | ossl_quic_channel_set_incoming_stream_auto_reject(qc->ch, | |
2882 | enable_reject, | |
83df44ae | 2883 | qc->incoming_stream_aec); |
995ff282 HL |
2884 | } |
2885 | ||
cb68ce9f | 2886 | QUIC_TAKES_LOCK |
83df44ae HL |
2887 | int ossl_quic_set_incoming_stream_policy(SSL *s, int policy, |
2888 | uint64_t aec) | |
8a90df34 HL |
2889 | { |
2890 | int ret = 1; | |
2891 | QCTX ctx; | |
2892 | ||
a954f761 | 2893 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
8a90df34 HL |
2894 | return 0; |
2895 | ||
2896 | quic_lock(ctx.qc); | |
2897 | ||
2898 | switch (policy) { | |
83df44ae HL |
2899 | case SSL_INCOMING_STREAM_POLICY_AUTO: |
2900 | case SSL_INCOMING_STREAM_POLICY_ACCEPT: | |
2901 | case SSL_INCOMING_STREAM_POLICY_REJECT: | |
2902 | ctx.qc->incoming_stream_policy = policy; | |
2903 | ctx.qc->incoming_stream_aec = aec; | |
8a90df34 HL |
2904 | break; |
2905 | ||
2906 | default: | |
a954f761 | 2907 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
8a90df34 HL |
2908 | ret = 0; |
2909 | break; | |
2910 | } | |
2911 | ||
995ff282 | 2912 | qc_update_reject_policy(ctx.qc); |
8a90df34 HL |
2913 | quic_unlock(ctx.qc); |
2914 | return ret; | |
2915 | } | |
2916 | ||
cb68ce9f HL |
2917 | /* |
2918 | * SSL_accept_stream | |
2919 | * ----------------- | |
2920 | */ | |
cb68ce9f | 2921 | struct wait_for_incoming_stream_args { |
faa3a180 | 2922 | QCTX *ctx; |
cb68ce9f HL |
2923 | QUIC_STREAM *qs; |
2924 | }; | |
2925 | ||
2926 | QUIC_NEEDS_LOCK | |
2927 | static int wait_for_incoming_stream(void *arg) | |
2928 | { | |
2929 | struct wait_for_incoming_stream_args *args = arg; | |
faa3a180 HL |
2930 | QUIC_CONNECTION *qc = args->ctx->qc; |
2931 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(qc->ch); | |
cb68ce9f | 2932 | |
6d6b3a03 | 2933 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { |
cb68ce9f | 2934 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 2935 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
cb68ce9f HL |
2936 | return -1; |
2937 | } | |
2938 | ||
2939 | args->qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
2940 | if (args->qs != NULL) | |
2941 | return 1; /* got a stream */ | |
2942 | ||
2943 | return 0; /* did not get a stream, keep trying */ | |
2944 | } | |
2945 | ||
2946 | QUIC_TAKES_LOCK | |
2947 | SSL *ossl_quic_accept_stream(SSL *s, uint64_t flags) | |
2948 | { | |
2949 | QCTX ctx; | |
2950 | int ret; | |
2951 | SSL *new_s = NULL; | |
2952 | QUIC_STREAM_MAP *qsm; | |
2953 | QUIC_STREAM *qs; | |
2954 | QUIC_XSO *xso; | |
90cecc40 | 2955 | OSSL_RTT_INFO rtt_info; |
cb68ce9f | 2956 | |
a954f761 | 2957 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
cb68ce9f HL |
2958 | return NULL; |
2959 | ||
2960 | quic_lock(ctx.qc); | |
2961 | ||
83df44ae | 2962 | if (qc_get_effective_incoming_stream_policy(ctx.qc) |
8ee3ee10 | 2963 | == SSL_INCOMING_STREAM_POLICY_REJECT) { |
a954f761 | 2964 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, NULL); |
cb68ce9f | 2965 | goto out; |
8ee3ee10 | 2966 | } |
cb68ce9f HL |
2967 | |
2968 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
2969 | ||
2970 | qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
2971 | if (qs == NULL) { | |
2972 | if (qc_blocking_mode(ctx.qc) | |
2973 | && (flags & SSL_ACCEPT_STREAM_NO_BLOCK) == 0) { | |
2974 | struct wait_for_incoming_stream_args args; | |
2975 | ||
faa3a180 | 2976 | args.ctx = &ctx; |
cb68ce9f HL |
2977 | args.qs = NULL; |
2978 | ||
2979 | ret = block_until_pred(ctx.qc, wait_for_incoming_stream, &args, 0); | |
2980 | if (ret == 0) { | |
faa3a180 | 2981 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
cb68ce9f HL |
2982 | goto out; |
2983 | } else if (ret < 0 || args.qs == NULL) { | |
2984 | goto out; | |
2985 | } | |
2986 | ||
2987 | qs = args.qs; | |
2988 | } else { | |
2989 | goto out; | |
2990 | } | |
2991 | } | |
2992 | ||
2993 | xso = create_xso_from_stream(ctx.qc, qs); | |
2994 | if (xso == NULL) | |
2995 | goto out; | |
2996 | ||
90cecc40 HL |
2997 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(ctx.qc->ch), &rtt_info); |
2998 | ossl_quic_stream_map_remove_from_accept_queue(qsm, qs, | |
2999 | rtt_info.smoothed_rtt); | |
cb68ce9f HL |
3000 | new_s = &xso->ssl; |
3001 | ||
3002 | /* Calling this function inhibits default XSO autocreation. */ | |
995ff282 | 3003 | qc_touch_default_xso(ctx.qc); /* inhibits default XSO */ |
cb68ce9f HL |
3004 | |
3005 | out: | |
3006 | quic_unlock(ctx.qc); | |
3007 | return new_s; | |
3008 | } | |
3009 | ||
3010 | /* | |
3011 | * SSL_get_accept_stream_queue_len | |
3012 | * ------------------------------- | |
3013 | */ | |
3014 | QUIC_TAKES_LOCK | |
3015 | size_t ossl_quic_get_accept_stream_queue_len(SSL *s) | |
3016 | { | |
3017 | QCTX ctx; | |
3018 | size_t v; | |
3019 | ||
a954f761 | 3020 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
cb68ce9f HL |
3021 | return 0; |
3022 | ||
3023 | quic_lock(ctx.qc); | |
3024 | ||
3025 | v = ossl_quic_stream_map_get_accept_queue_len(ossl_quic_channel_get_qsm(ctx.qc->ch)); | |
3026 | ||
3027 | quic_unlock(ctx.qc); | |
3028 | return v; | |
3029 | } | |
3030 | ||
c3a04ea2 HL |
3031 | /* |
3032 | * SSL_stream_reset | |
3033 | * ---------------- | |
3034 | */ | |
3035 | int ossl_quic_stream_reset(SSL *ssl, | |
3036 | const SSL_STREAM_RESET_ARGS *args, | |
3037 | size_t args_len) | |
3038 | { | |
3039 | QCTX ctx; | |
3040 | QUIC_STREAM_MAP *qsm; | |
3041 | QUIC_STREAM *qs; | |
3042 | uint64_t error_code; | |
e0bd2825 | 3043 | int ok, err; |
c3a04ea2 | 3044 | |
a954f761 | 3045 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/0, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3046 | return 0; |
3047 | ||
3048 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
3049 | qs = ctx.xso->stream; | |
3050 | error_code = (args != NULL ? args->quic_error_code : 0); | |
3051 | ||
1d547f8f HL |
3052 | if (!quic_validate_for_write(ctx.xso, &err)) { |
3053 | ok = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
3054 | goto err; | |
3055 | } | |
e0bd2825 | 3056 | |
2f018d14 | 3057 | ok = ossl_quic_stream_map_reset_stream_send_part(qsm, qs, error_code); |
c3a04ea2 | 3058 | |
1d547f8f | 3059 | err: |
c3a04ea2 | 3060 | quic_unlock(ctx.qc); |
2f018d14 | 3061 | return ok; |
c3a04ea2 HL |
3062 | } |
3063 | ||
3064 | /* | |
3065 | * SSL_get_stream_read_state | |
3066 | * ------------------------- | |
3067 | */ | |
3068 | static void quic_classify_stream(QUIC_CONNECTION *qc, | |
3069 | QUIC_STREAM *qs, | |
3070 | int is_write, | |
3071 | int *state, | |
3072 | uint64_t *app_error_code) | |
3073 | { | |
3074 | int local_init; | |
3075 | uint64_t final_size; | |
3076 | ||
3077 | local_init = (ossl_quic_stream_is_server_init(qs) == qc->as_server); | |
3078 | ||
3079 | if (app_error_code != NULL) | |
3080 | *app_error_code = UINT64_MAX; | |
3081 | else | |
3082 | app_error_code = &final_size; /* throw away value */ | |
3083 | ||
3084 | if (!ossl_quic_stream_is_bidi(qs) && local_init != is_write) { | |
3085 | /* | |
3086 | * Unidirectional stream and this direction of transmission doesn't | |
3087 | * exist. | |
3088 | */ | |
3089 | *state = SSL_STREAM_STATE_WRONG_DIR; | |
3090 | } else if (ossl_quic_channel_is_term_any(qc->ch)) { | |
3091 | /* Connection already closed. */ | |
3092 | *state = SSL_STREAM_STATE_CONN_CLOSED; | |
5ed3a435 | 3093 | } else if (!is_write && qs->recv_state == QUIC_RSTREAM_STATE_DATA_READ) { |
c3a04ea2 HL |
3094 | /* Application has read a FIN. */ |
3095 | *state = SSL_STREAM_STATE_FINISHED; | |
3096 | } else if ((!is_write && qs->stop_sending) | |
2f018d14 | 3097 | || (is_write && ossl_quic_stream_send_is_reset(qs))) { |
c3a04ea2 HL |
3098 | /* |
3099 | * Stream has been reset locally. FIN takes precedence over this for the | |
3100 | * read case as the application need not care if the stream is reset | |
3101 | * after a FIN has been successfully processed. | |
3102 | */ | |
3103 | *state = SSL_STREAM_STATE_RESET_LOCAL; | |
3104 | *app_error_code = !is_write | |
3105 | ? qs->stop_sending_aec | |
3106 | : qs->reset_stream_aec; | |
2f018d14 | 3107 | } else if ((!is_write && ossl_quic_stream_recv_is_reset(qs)) |
c3a04ea2 HL |
3108 | || (is_write && qs->peer_stop_sending)) { |
3109 | /* | |
3110 | * Stream has been reset remotely. */ | |
3111 | *state = SSL_STREAM_STATE_RESET_REMOTE; | |
3112 | *app_error_code = !is_write | |
3113 | ? qs->peer_reset_stream_aec | |
3114 | : qs->peer_stop_sending_aec; | |
3115 | } else if (is_write && ossl_quic_sstream_get_final_size(qs->sstream, | |
3116 | &final_size)) { | |
3117 | /* | |
3118 | * Stream has been finished. Stream reset takes precedence over this for | |
3119 | * the write case as peer may not have received all data. | |
3120 | */ | |
3121 | *state = SSL_STREAM_STATE_FINISHED; | |
3122 | } else { | |
3123 | /* Stream still healthy. */ | |
3124 | *state = SSL_STREAM_STATE_OK; | |
3125 | } | |
3126 | } | |
3127 | ||
3128 | static int quic_get_stream_state(SSL *ssl, int is_write) | |
3129 | { | |
3130 | QCTX ctx; | |
3131 | int state; | |
3132 | ||
a954f761 | 3133 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3134 | return SSL_STREAM_STATE_NONE; |
3135 | ||
3136 | quic_classify_stream(ctx.qc, ctx.xso->stream, is_write, &state, NULL); | |
3137 | quic_unlock(ctx.qc); | |
3138 | return state; | |
3139 | } | |
3140 | ||
3141 | int ossl_quic_get_stream_read_state(SSL *ssl) | |
3142 | { | |
3143 | return quic_get_stream_state(ssl, /*is_write=*/0); | |
3144 | } | |
3145 | ||
3146 | /* | |
3147 | * SSL_get_stream_write_state | |
3148 | * -------------------------- | |
3149 | */ | |
3150 | int ossl_quic_get_stream_write_state(SSL *ssl) | |
3151 | { | |
3152 | return quic_get_stream_state(ssl, /*is_write=*/1); | |
3153 | } | |
3154 | ||
3155 | /* | |
3156 | * SSL_get_stream_read_error_code | |
3157 | * ------------------------------ | |
3158 | */ | |
3159 | static int quic_get_stream_error_code(SSL *ssl, int is_write, | |
3160 | uint64_t *app_error_code) | |
3161 | { | |
3162 | QCTX ctx; | |
3163 | int state; | |
3164 | ||
a954f761 | 3165 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3166 | return -1; |
3167 | ||
3168 | quic_classify_stream(ctx.qc, ctx.xso->stream, /*is_write=*/0, | |
3169 | &state, app_error_code); | |
3170 | ||
3171 | quic_unlock(ctx.qc); | |
3172 | switch (state) { | |
3173 | case SSL_STREAM_STATE_FINISHED: | |
3174 | return 0; | |
3175 | case SSL_STREAM_STATE_RESET_LOCAL: | |
3176 | case SSL_STREAM_STATE_RESET_REMOTE: | |
3177 | return 1; | |
3178 | default: | |
3179 | return -1; | |
3180 | } | |
3181 | } | |
3182 | ||
3183 | int ossl_quic_get_stream_read_error_code(SSL *ssl, uint64_t *app_error_code) | |
3184 | { | |
3185 | return quic_get_stream_error_code(ssl, /*is_write=*/0, app_error_code); | |
3186 | } | |
3187 | ||
3188 | /* | |
3189 | * SSL_get_stream_write_error_code | |
3190 | * ------------------------------- | |
3191 | */ | |
3192 | int ossl_quic_get_stream_write_error_code(SSL *ssl, uint64_t *app_error_code) | |
3193 | { | |
3194 | return quic_get_stream_error_code(ssl, /*is_write=*/1, app_error_code); | |
3195 | } | |
3196 | ||
3415677e HL |
3197 | /* |
3198 | * Write buffer size mutation | |
3199 | * -------------------------- | |
3200 | */ | |
3201 | int ossl_quic_set_write_buffer_size(SSL *ssl, size_t size) | |
3202 | { | |
3203 | int ret = 0; | |
3204 | QCTX ctx; | |
3205 | ||
a954f761 | 3206 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
3415677e HL |
3207 | return 0; |
3208 | ||
96014840 | 3209 | if (!ossl_quic_stream_has_send(ctx.xso->stream)) { |
3415677e | 3210 | /* Called on a unidirectional receive-only stream - error. */ |
a954f761 | 3211 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, NULL); |
3415677e | 3212 | goto out; |
96014840 | 3213 | } |
3415677e HL |
3214 | |
3215 | if (!ossl_quic_stream_has_send_buffer(ctx.xso->stream)) { | |
3216 | /* | |
3217 | * If the stream has a send part but we have disposed of it because we | |
3218 | * no longer need it, this is a no-op. | |
3219 | */ | |
3220 | ret = 1; | |
3221 | goto out; | |
3222 | } | |
3223 | ||
96014840 | 3224 | if (!ossl_quic_sstream_set_buffer_size(ctx.xso->stream->sstream, size)) { |
a954f761 | 3225 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
3415677e | 3226 | goto out; |
96014840 | 3227 | } |
3415677e HL |
3228 | |
3229 | ret = 1; | |
3230 | ||
3231 | out: | |
3232 | quic_unlock(ctx.qc); | |
3233 | return ret; | |
3234 | } | |
3235 | ||
c3a04ea2 HL |
3236 | /* |
3237 | * SSL_get_conn_close_info | |
3238 | * ----------------------- | |
3239 | */ | |
3240 | int ossl_quic_get_conn_close_info(SSL *ssl, | |
3241 | SSL_CONN_CLOSE_INFO *info, | |
3242 | size_t info_len) | |
3243 | { | |
3244 | QCTX ctx; | |
3245 | const QUIC_TERMINATE_CAUSE *tc; | |
3246 | ||
a954f761 | 3247 | if (!expect_quic_conn_only(ssl, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3248 | return -1; |
3249 | ||
3250 | tc = ossl_quic_channel_get_terminate_cause(ctx.qc->ch); | |
3251 | if (tc == NULL) | |
3252 | return 0; | |
3253 | ||
3254 | info->error_code = tc->error_code; | |
40c8c756 HL |
3255 | info->reason = tc->reason; |
3256 | info->reason_len = tc->reason_len; | |
c3a04ea2 HL |
3257 | info->is_local = !tc->remote; |
3258 | info->is_transport = !tc->app; | |
3259 | return 1; | |
3260 | } | |
3261 | ||
2525109f HL |
3262 | /* |
3263 | * SSL_key_update | |
3264 | * -------------- | |
3265 | */ | |
3266 | int ossl_quic_key_update(SSL *ssl, int update_type) | |
3267 | { | |
3268 | QCTX ctx; | |
3269 | ||
a954f761 | 3270 | if (!expect_quic_conn_only(ssl, /*io=*/0, &ctx)) |
2525109f HL |
3271 | return 0; |
3272 | ||
3273 | switch (update_type) { | |
3274 | case SSL_KEY_UPDATE_NOT_REQUESTED: | |
3275 | /* | |
3276 | * QUIC signals peer key update implicily by triggering a local | |
3277 | * spontaneous TXKU. Silently upgrade this to SSL_KEY_UPDATE_REQUESTED. | |
3278 | */ | |
3279 | case SSL_KEY_UPDATE_REQUESTED: | |
3280 | break; | |
3281 | ||
3282 | default: | |
a954f761 | 3283 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
2525109f HL |
3284 | return 0; |
3285 | } | |
3286 | ||
3287 | quic_lock(ctx.qc); | |
3288 | ||
3289 | /* Attempt to perform a TXKU. */ | |
3290 | if (!ossl_quic_channel_trigger_txku(ctx.qc->ch)) { | |
a954f761 | 3291 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_TOO_MANY_KEY_UPDATES, NULL); |
2525109f HL |
3292 | quic_unlock(ctx.qc); |
3293 | return 0; | |
3294 | } | |
3295 | ||
3296 | quic_unlock(ctx.qc); | |
3297 | return 1; | |
3298 | } | |
3299 | ||
3300 | /* | |
3301 | * SSL_get_key_update_type | |
3302 | * ----------------------- | |
3303 | */ | |
3304 | int ossl_quic_get_key_update_type(const SSL *s) | |
3305 | { | |
3306 | /* | |
3307 | * We always handle key updates immediately so a key update is never | |
3308 | * pending. | |
3309 | */ | |
3310 | return SSL_KEY_UPDATE_NONE; | |
3311 | } | |
3312 | ||
22d53c88 HL |
3313 | /* |
3314 | * QUIC Front-End I/O API: SSL_CTX Management | |
3315 | * ========================================== | |
3316 | */ | |
3317 | ||
3318 | long ossl_quic_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
3319 | { | |
3320 | switch (cmd) { | |
3321 | default: | |
8a1a6d6d | 3322 | return ssl3_ctx_ctrl(ctx, cmd, larg, parg); |
22d53c88 HL |
3323 | } |
3324 | } | |
3325 | ||
3326 | long ossl_quic_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
3327 | { | |
63dfde87 MC |
3328 | QCTX ctx; |
3329 | ||
a954f761 | 3330 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
63dfde87 MC |
3331 | return 0; |
3332 | ||
3333 | switch (cmd) { | |
3334 | case SSL_CTRL_SET_MSG_CALLBACK: | |
5cf99b40 MC |
3335 | ossl_quic_channel_set_msg_callback(ctx.qc->ch, (ossl_msg_cb)fp, |
3336 | &ctx.qc->ssl); | |
63dfde87 MC |
3337 | /* This callback also needs to be set on the internal SSL object */ |
3338 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp);; | |
3339 | ||
3340 | default: | |
3341 | /* Probably a TLS related ctrl. Defer to our internal SSL object */ | |
3342 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp); | |
3343 | } | |
22d53c88 HL |
3344 | } |
3345 | ||
3346 | long ossl_quic_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
3347 | { | |
8a1a6d6d | 3348 | return ssl3_ctx_callback_ctrl(ctx, cmd, fp); |
22d53c88 HL |
3349 | } |
3350 | ||
3351 | int ossl_quic_renegotiate_check(SSL *ssl, int initok) | |
3352 | { | |
3353 | /* We never do renegotiation. */ | |
3354 | return 0; | |
3355 | } | |
3356 | ||
3357 | /* | |
d518854c MC |
3358 | * These functions define the TLSv1.2 (and below) ciphers that are supported by |
3359 | * the SSL_METHOD. Since QUIC only supports TLSv1.3 we don't support any. | |
22d53c88 | 3360 | */ |
22d53c88 HL |
3361 | |
3362 | int ossl_quic_num_ciphers(void) | |
3363 | { | |
d518854c | 3364 | return 0; |
22d53c88 HL |
3365 | } |
3366 | ||
3367 | const SSL_CIPHER *ossl_quic_get_cipher(unsigned int u) | |
3368 | { | |
d518854c | 3369 | return NULL; |
d5ab48a1 | 3370 | } |
16f3b542 HL |
3371 | |
3372 | /* | |
3373 | * Internal Testing APIs | |
3374 | * ===================== | |
3375 | */ | |
3376 | ||
3377 | QUIC_CHANNEL *ossl_quic_conn_get_channel(SSL *s) | |
3378 | { | |
3379 | QCTX ctx; | |
3380 | ||
a954f761 | 3381 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
16f3b542 HL |
3382 | return NULL; |
3383 | ||
3384 | return ctx.qc->ch; | |
3385 | } |