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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 | { | |
62665fc2 | 819 | if (BIO_dgram_detect_peer_addr(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 | |
dfb9ae14 | 1521 | if (qc->as_server != qc->as_server_state) { |
a954f761 | 1522 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
4a530180 | 1523 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1524 | } |
22d53c88 | 1525 | |
ca41f6b7 | 1526 | if (qc->net_rbio == NULL || qc->net_wbio == NULL) { |
22d53c88 | 1527 | /* Need read and write BIOs. */ |
a954f761 | 1528 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BIO_NOT_SET, NULL); |
4a530180 | 1529 | return -1; /* Non-protocol error */ |
62665fc2 HL |
1530 | } |
1531 | ||
1532 | /* | |
1533 | * We need to determine our addressing mode. There are basically two | |
1534 | * ways we can use L4 addresses: | |
1535 | * | |
1536 | * - Addressed mode, in which our BIO_sendmmsg calls have destination | |
1537 | * addresses attached to them which we expect the underlying network BIO | |
1538 | * to handle; | |
1539 | * | |
1540 | * - Unaddressed mode, in which the BIO provided to us on the | |
1541 | * network side neither provides us with L4 addresses nor is capable of | |
1542 | * honouring ones we provide. We don't know where the QUIC traffic we | |
1543 | * send ends up exactly and trust the application to know what it is | |
1544 | * doing. | |
1545 | * | |
1546 | * Addressed mode is preferred because it enables support for connection | |
1547 | * migration, multipath, etc. in the future. Addressed mode is automatically | |
1548 | * enabled if we are using e.g. BIO_s_datagram, with or without | |
1549 | * BIO_s_connect. | |
1550 | * | |
1551 | * If we are passed a BIO_s_dgram_pair (or some custom BIO) we may have to | |
1552 | * use unaddressed mode unless that BIO supports capability flags indicating | |
1553 | * it can provide and honour L4 addresses. | |
1554 | * | |
1555 | * Our strategy for determining address mode is simple: we probe the | |
1556 | * underlying network BIOs for their capabilities. If the network BIOs | |
1557 | * support what we need, we use addressed mode. Otherwise, we use | |
1558 | * unaddressed mode. | |
1559 | * | |
1560 | * If addressed mode is chosen, we require an initial peer address to be | |
1561 | * set. If this is not set, we fail. If unaddressed mode is used, we do not | |
1562 | * require this, as such an address is superfluous, though it can be set if | |
1563 | * desired. | |
1564 | */ | |
1565 | if (!qc->started && !qc->addressing_probe_done) { | |
1566 | long rcaps = BIO_dgram_get_effective_caps(qc->net_rbio); | |
1567 | long wcaps = BIO_dgram_get_effective_caps(qc->net_wbio); | |
62665fc2 | 1568 | |
3760747f HL |
1569 | qc->addressed_mode_r = ((rcaps & BIO_DGRAM_CAP_PROVIDES_SRC_ADDR) != 0); |
1570 | qc->addressed_mode_w = ((wcaps & BIO_DGRAM_CAP_HANDLES_DST_ADDR) != 0); | |
1571 | qc->addressing_probe_done = 1; | |
62665fc2 HL |
1572 | } |
1573 | ||
3760747f | 1574 | if (!qc->started && qc->addressed_mode_w |
62665fc2 HL |
1575 | && BIO_ADDR_family(&qc->init_peer_addr) == AF_UNSPEC) { |
1576 | /* | |
1577 | * We are trying to connect and are using addressed mode, which means we | |
1578 | * need an initial peer address; if we do not have a peer address yet, | |
1579 | * we should try to autodetect one. | |
1580 | * | |
1581 | * We do this as late as possible because some BIOs (e.g. BIO_s_connect) | |
1582 | * may not be able to provide us with a peer address until they have | |
1583 | * finished their own processing. They may not be able to perform this | |
1584 | * processing until an application has figured configuring that BIO | |
1585 | * (e.g. with setter calls), which might happen after SSL_set_bio is | |
1586 | * called. | |
1587 | */ | |
1588 | if (!csm_analyse_init_peer_addr(qc->net_wbio, &qc->init_peer_addr)) | |
1589 | /* best effort */ | |
1590 | BIO_ADDR_clear(&qc->init_peer_addr); | |
1591 | else | |
1592 | ossl_quic_channel_set_peer_addr(qc->ch, &qc->init_peer_addr); | |
1593 | } | |
1594 | ||
1595 | if (!qc->started | |
3760747f | 1596 | && qc->addressed_mode_w |
62665fc2 HL |
1597 | && BIO_ADDR_family(&qc->init_peer_addr) == AF_UNSPEC) { |
1598 | /* | |
1599 | * If we still don't have a peer address in addressed mode, we can't do | |
1600 | * anything. | |
1601 | */ | |
1602 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_REMOTE_PEER_ADDRESS_NOT_SET, NULL); | |
1603 | return -1; /* Non-protocol error */ | |
ca41f6b7 | 1604 | } |
22d53c88 HL |
1605 | |
1606 | /* | |
1607 | * Start connection process. Note we may come here multiple times in | |
1608 | * non-blocking mode, which is fine. | |
1609 | */ | |
2e176011 | 1610 | if (!ensure_channel_started(qc)) /* raises on failure */ |
4a530180 | 1611 | return -1; /* Non-protocol error */ |
22d53c88 | 1612 | |
4a530180 | 1613 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) |
22d53c88 | 1614 | /* The handshake is now done. */ |
4a530180 | 1615 | return 1; |
22d53c88 | 1616 | |
51e671e2 HL |
1617 | if (!qc_blocking_mode(qc)) { |
1618 | /* Try to advance the reactor. */ | |
1619 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1620 | ||
1621 | if (ossl_quic_channel_is_handshake_complete(qc->ch)) | |
1622 | /* The handshake is now done. */ | |
1623 | return 1; | |
1624 | ||
1625 | if (ossl_quic_channel_is_term_any(qc->ch)) { | |
1626 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); | |
1627 | return 0; | |
1628 | } else if (qc->desires_blocking) { | |
1629 | /* | |
1630 | * As a special case when doing a handshake when blocking mode is | |
1631 | * desired yet not available, see if the network BIOs have become | |
1632 | * poll descriptor-enabled. This supports BIOs such as BIO_s_connect | |
1633 | * which do late creation of socket FDs and therefore cannot expose | |
1634 | * a poll descriptor until after a network BIO is set on the QCSO. | |
1635 | */ | |
1636 | assert(!qc->blocking); | |
1637 | qc_update_can_support_blocking(qc); | |
1638 | qc_update_blocking_mode(qc); | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | /* | |
1643 | * We are either in blocking mode or just entered it due to the code above. | |
1644 | */ | |
cb5c208b | 1645 | if (qc_blocking_mode(qc)) { |
22d53c88 HL |
1646 | /* In blocking mode, wait for the handshake to complete. */ |
1647 | struct quic_handshake_wait_args args; | |
1648 | ||
1649 | args.qc = qc; | |
1650 | ||
1651 | ret = block_until_pred(qc, quic_handshake_wait, &args, 0); | |
6d6b3a03 | 1652 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { |
faa3a180 | 1653 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
4a530180 | 1654 | return 0; /* Shutdown before completion */ |
ca41f6b7 | 1655 | } else if (ret <= 0) { |
a954f761 | 1656 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
4a530180 | 1657 | return -1; /* Non-protocol error */ |
ca41f6b7 | 1658 | } |
22d53c88 HL |
1659 | |
1660 | assert(ossl_quic_channel_is_handshake_complete(qc->ch)); | |
4a530180 | 1661 | return 1; |
22d53c88 | 1662 | } |
51e671e2 HL |
1663 | |
1664 | /* | |
1665 | * Otherwise, indicate that the handshake isn't done yet. | |
1666 | * We can only get here in non-blocking mode. | |
1667 | */ | |
1668 | QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); | |
1669 | return -1; /* Non-protocol error */ | |
4a530180 | 1670 | } |
a8489257 | 1671 | |
4a530180 | 1672 | QUIC_TAKES_LOCK |
072328dd | 1673 | int ossl_quic_do_handshake(SSL *s) |
4a530180 HL |
1674 | { |
1675 | int ret; | |
072328dd | 1676 | QCTX ctx; |
4a530180 | 1677 | |
072328dd HL |
1678 | if (!expect_quic(s, &ctx)) |
1679 | return 0; | |
1680 | ||
a954f761 | 1681 | ctx.in_io = 1; |
072328dd | 1682 | quic_lock(ctx.qc); |
4a530180 | 1683 | |
faa3a180 | 1684 | ret = quic_do_handshake(&ctx); |
072328dd | 1685 | quic_unlock(ctx.qc); |
a8489257 | 1686 | return ret; |
99e1cc7b TM |
1687 | } |
1688 | ||
22d53c88 HL |
1689 | /* SSL_connect */ |
1690 | int ossl_quic_connect(SSL *s) | |
99e1cc7b | 1691 | { |
22d53c88 | 1692 | /* Ensure we are in connect state (no-op if non-idle). */ |
072328dd | 1693 | ossl_quic_set_connect_state(s); |
22d53c88 HL |
1694 | |
1695 | /* Begin or continue the handshake */ | |
072328dd | 1696 | return ossl_quic_do_handshake(s); |
99e1cc7b TM |
1697 | } |
1698 | ||
22d53c88 HL |
1699 | /* SSL_accept */ |
1700 | int ossl_quic_accept(SSL *s) | |
99e1cc7b | 1701 | { |
22d53c88 | 1702 | /* Ensure we are in accept state (no-op if non-idle). */ |
072328dd | 1703 | ossl_quic_set_accept_state(s); |
22d53c88 HL |
1704 | |
1705 | /* Begin or continue the handshake */ | |
072328dd | 1706 | return ossl_quic_do_handshake(s); |
99e1cc7b | 1707 | } |
e44795bd | 1708 | |
cb5c208b HL |
1709 | /* |
1710 | * QUIC Front-End I/O API: Stream Lifecycle Operations | |
1711 | * =================================================== | |
1712 | * | |
1713 | * SSL_stream_new => ossl_quic_conn_stream_new | |
1714 | * | |
1715 | */ | |
21c80696 HL |
1716 | |
1717 | /* | |
1718 | * Try to create the default XSO if it doesn't already exist. Returns 1 if the | |
1719 | * default XSO was created. Returns 0 if it was not (e.g. because it already | |
1720 | * exists). Note that this is NOT an error condition. | |
1721 | */ | |
1722 | QUIC_NEEDS_LOCK | |
faa3a180 | 1723 | static int qc_try_create_default_xso_for_write(QCTX *ctx) |
21c80696 | 1724 | { |
8b7be3aa | 1725 | uint64_t flags = 0; |
faa3a180 | 1726 | QUIC_CONNECTION *qc = ctx->qc; |
21c80696 | 1727 | |
8b7be3aa HL |
1728 | if (qc->default_xso_created |
1729 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
21c80696 HL |
1730 | /* |
1731 | * We only do this once. If the user detaches a previously created | |
1732 | * default XSO we don't auto-create another one. | |
1733 | */ | |
faa3a180 | 1734 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
21c80696 | 1735 | |
8b7be3aa HL |
1736 | /* Create a locally-initiated stream. */ |
1737 | if (qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_AUTO_UNI) | |
1738 | flags |= SSL_STREAM_FLAG_UNI; | |
1739 | ||
faa3a180 | 1740 | qc_set_default_xso(qc, (QUIC_XSO *)quic_conn_stream_new(ctx, flags, |
13ac037d | 1741 | /*needs_lock=*/0), |
995ff282 | 1742 | /*touch=*/0); |
8b7be3aa | 1743 | if (qc->default_xso == NULL) |
faa3a180 | 1744 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1745 | |
995ff282 | 1746 | qc_touch_default_xso(qc); |
8b7be3aa HL |
1747 | return 1; |
1748 | } | |
1749 | ||
1750 | struct quic_wait_for_stream_args { | |
1751 | QUIC_CONNECTION *qc; | |
1752 | QUIC_STREAM *qs; | |
faa3a180 | 1753 | QCTX *ctx; |
8b7be3aa HL |
1754 | uint64_t expect_id; |
1755 | }; | |
1756 | ||
1757 | QUIC_NEEDS_LOCK | |
1758 | static int quic_wait_for_stream(void *arg) | |
1759 | { | |
1760 | struct quic_wait_for_stream_args *args = arg; | |
1761 | ||
6d6b3a03 | 1762 | if (!quic_mutation_allowed(args->qc, /*req_active=*/1)) { |
8b7be3aa | 1763 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 1764 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
8b7be3aa HL |
1765 | return -1; |
1766 | } | |
1767 | ||
1768 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
acc6fde0 HL |
1769 | args->expect_id | QUIC_STREAM_DIR_BIDI); |
1770 | if (args->qs == NULL) | |
1771 | args->qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(args->qc->ch), | |
1772 | args->expect_id | QUIC_STREAM_DIR_UNI); | |
1773 | ||
8b7be3aa HL |
1774 | if (args->qs != NULL) |
1775 | return 1; /* stream now exists */ | |
1776 | ||
1777 | return 0; /* did not get a stream, keep trying */ | |
1778 | } | |
1779 | ||
1780 | QUIC_NEEDS_LOCK | |
faa3a180 | 1781 | static int qc_wait_for_default_xso_for_read(QCTX *ctx) |
8b7be3aa HL |
1782 | { |
1783 | /* Called on a QCSO and we don't currently have a default stream. */ | |
1784 | uint64_t expect_id; | |
faa3a180 | 1785 | QUIC_CONNECTION *qc = ctx->qc; |
8b7be3aa HL |
1786 | QUIC_STREAM *qs; |
1787 | int res; | |
1788 | struct quic_wait_for_stream_args wargs; | |
1789 | ||
1790 | /* | |
1791 | * If default stream functionality is disabled or we already detached | |
1792 | * one, don't make another default stream and just fail. | |
1793 | */ | |
1794 | if (qc->default_xso_created | |
1795 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
faa3a180 | 1796 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_NO_STREAM, NULL); |
8b7be3aa HL |
1797 | |
1798 | /* | |
1799 | * The peer may have opened a stream since we last ticked. So tick and | |
1800 | * see if the stream with ordinal 0 (remote, bidi/uni based on stream | |
1801 | * mode) exists yet. QUIC stream IDs must be allocated in order, so the | |
1802 | * first stream created by a peer must have an ordinal of 0. | |
1803 | */ | |
1804 | expect_id = qc->as_server | |
1805 | ? QUIC_STREAM_INITIATOR_CLIENT | |
1806 | : QUIC_STREAM_INITIATOR_SERVER; | |
1807 | ||
8b7be3aa | 1808 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), |
acc6fde0 HL |
1809 | expect_id | QUIC_STREAM_DIR_BIDI); |
1810 | if (qs == NULL) | |
1811 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1812 | expect_id | QUIC_STREAM_DIR_UNI); | |
1813 | ||
8b7be3aa HL |
1814 | if (qs == NULL) { |
1815 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(qc->ch), 0); | |
1816 | ||
1817 | qs = ossl_quic_stream_map_get_by_id(ossl_quic_channel_get_qsm(qc->ch), | |
1818 | expect_id); | |
1819 | } | |
1820 | ||
1821 | if (qs == NULL) { | |
1822 | if (!qc_blocking_mode(qc)) | |
1823 | /* Non-blocking mode, so just bail immediately. */ | |
faa3a180 | 1824 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_READ); |
8b7be3aa HL |
1825 | |
1826 | /* Block until we have a stream. */ | |
1827 | wargs.qc = qc; | |
1828 | wargs.qs = NULL; | |
faa3a180 | 1829 | wargs.ctx = ctx; |
8b7be3aa HL |
1830 | wargs.expect_id = expect_id; |
1831 | ||
1832 | res = block_until_pred(qc, quic_wait_for_stream, &wargs, 0); | |
1833 | if (res == 0) | |
faa3a180 | 1834 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa HL |
1835 | else if (res < 0 || wargs.qs == NULL) |
1836 | /* quic_wait_for_stream raised error here */ | |
21c80696 | 1837 | return 0; |
8b7be3aa HL |
1838 | |
1839 | qs = wargs.qs; | |
21c80696 HL |
1840 | } |
1841 | ||
8b7be3aa HL |
1842 | /* |
1843 | * We now have qs != NULL. Make it the default stream, creating the | |
1844 | * necessary XSO. | |
1845 | */ | |
995ff282 | 1846 | qc_set_default_xso(qc, create_xso_from_stream(qc, qs), /*touch=*/0); |
8b7be3aa | 1847 | if (qc->default_xso == NULL) |
a954f761 | 1848 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
8b7be3aa | 1849 | |
995ff282 | 1850 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
21c80696 HL |
1851 | return 1; |
1852 | } | |
1853 | ||
1854 | QUIC_NEEDS_LOCK | |
1855 | static QUIC_XSO *create_xso_from_stream(QUIC_CONNECTION *qc, QUIC_STREAM *qs) | |
1856 | { | |
1857 | QUIC_XSO *xso = NULL; | |
1858 | ||
8ee3ee10 | 1859 | if ((xso = OPENSSL_zalloc(sizeof(*xso))) == NULL) { |
a954f761 | 1860 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_CRYPTO_LIB, NULL); |
21c80696 | 1861 | goto err; |
8ee3ee10 | 1862 | } |
21c80696 | 1863 | |
8ee3ee10 | 1864 | if (!ossl_ssl_init(&xso->ssl, qc->ssl.ctx, qc->ssl.method, SSL_TYPE_QUIC_XSO)) { |
a954f761 | 1865 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_INTERNAL_ERROR, NULL); |
21c80696 | 1866 | goto err; |
8ee3ee10 | 1867 | } |
21c80696 | 1868 | |
9cab4bd5 | 1869 | /* XSO refs QC */ |
8ee3ee10 | 1870 | if (!SSL_up_ref(&qc->ssl)) { |
a954f761 | 1871 | QUIC_RAISE_NON_NORMAL_ERROR(NULL, ERR_R_SSL_LIB, NULL); |
9cab4bd5 | 1872 | goto err; |
8ee3ee10 | 1873 | } |
9cab4bd5 | 1874 | |
21c80696 | 1875 | xso->conn = qc; |
21c80696 | 1876 | xso->ssl_mode = qc->default_ssl_mode; |
db2f98c4 HL |
1877 | xso->ssl_options |
1878 | = qc->default_ssl_options & OSSL_QUIC_PERMITTED_OPTIONS_STREAM; | |
faa3a180 | 1879 | xso->last_error = SSL_ERROR_NONE; |
21c80696 HL |
1880 | |
1881 | xso->stream = qs; | |
1882 | ||
1883 | ++qc->num_xso; | |
db2f98c4 | 1884 | xso_update_options(xso); |
21c80696 HL |
1885 | return xso; |
1886 | ||
1887 | err: | |
1888 | OPENSSL_free(xso); | |
1889 | return NULL; | |
1890 | } | |
1891 | ||
9d6bd3d3 HL |
1892 | struct quic_new_stream_wait_args { |
1893 | QUIC_CONNECTION *qc; | |
1894 | int is_uni; | |
1895 | }; | |
1896 | ||
1897 | static int quic_new_stream_wait(void *arg) | |
1898 | { | |
1899 | struct quic_new_stream_wait_args *args = arg; | |
1900 | QUIC_CONNECTION *qc = args->qc; | |
1901 | ||
1902 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) | |
1903 | return -1; | |
1904 | ||
1905 | if (ossl_quic_channel_is_new_local_stream_admissible(qc->ch, args->is_uni)) | |
1906 | return 1; | |
1907 | ||
1908 | return 0; | |
1909 | } | |
1910 | ||
13ac037d | 1911 | /* locking depends on need_lock */ |
faa3a180 | 1912 | static SSL *quic_conn_stream_new(QCTX *ctx, uint64_t flags, int need_lock) |
cb5c208b | 1913 | { |
9d6bd3d3 | 1914 | int ret; |
faa3a180 | 1915 | QUIC_CONNECTION *qc = ctx->qc; |
cb5c208b | 1916 | QUIC_XSO *xso = NULL; |
21c80696 | 1917 | QUIC_STREAM *qs = NULL; |
2dbc39de | 1918 | int is_uni = ((flags & SSL_STREAM_FLAG_UNI) != 0); |
9d6bd3d3 HL |
1919 | int no_blocking = ((flags & SSL_STREAM_FLAG_NO_BLOCK) != 0); |
1920 | int advance = ((flags & SSL_STREAM_FLAG_ADVANCE) != 0); | |
cb5c208b | 1921 | |
13ac037d HL |
1922 | if (need_lock) |
1923 | quic_lock(qc); | |
2dbc39de | 1924 | |
6d6b3a03 | 1925 | if (!quic_mutation_allowed(qc, /*req_active=*/0)) { |
a954f761 | 1926 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2dbc39de HL |
1927 | goto err; |
1928 | } | |
1929 | ||
9d6bd3d3 HL |
1930 | if (!advance |
1931 | && !ossl_quic_channel_is_new_local_stream_admissible(qc->ch, is_uni)) { | |
1932 | struct quic_new_stream_wait_args args; | |
1933 | ||
1934 | /* | |
1935 | * Stream count flow control currently doesn't permit this stream to be | |
1936 | * opened. | |
1937 | */ | |
1938 | if (no_blocking || !qc_blocking_mode(qc)) { | |
96fe5e5f | 1939 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_STREAM_COUNT_LIMITED, NULL); |
9d6bd3d3 HL |
1940 | goto err; |
1941 | } | |
1942 | ||
1943 | args.qc = qc; | |
1944 | args.is_uni = is_uni; | |
1945 | ||
1946 | /* Blocking mode - wait until we can get a stream. */ | |
1947 | ret = block_until_pred(ctx->qc, quic_new_stream_wait, &args, 0); | |
1948 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { | |
96fe5e5f | 1949 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
9d6bd3d3 HL |
1950 | goto err; /* Shutdown before completion */ |
1951 | } else if (ret <= 0) { | |
96fe5e5f | 1952 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
9d6bd3d3 HL |
1953 | goto err; /* Non-protocol error */ |
1954 | } | |
1955 | } | |
1956 | ||
13ac037d | 1957 | qs = ossl_quic_channel_new_stream_local(qc->ch, is_uni); |
96014840 | 1958 | if (qs == NULL) { |
a954f761 | 1959 | QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
2dbc39de | 1960 | goto err; |
96014840 | 1961 | } |
cb5c208b | 1962 | |
13ac037d | 1963 | xso = create_xso_from_stream(qc, qs); |
8ee3ee10 | 1964 | if (xso == NULL) |
cb5c208b HL |
1965 | goto err; |
1966 | ||
13ac037d HL |
1967 | qc_touch_default_xso(qc); /* inhibits default XSO */ |
1968 | if (need_lock) | |
1969 | quic_unlock(qc); | |
1970 | ||
cb5c208b HL |
1971 | return &xso->ssl; |
1972 | ||
1973 | err: | |
1974 | OPENSSL_free(xso); | |
13ac037d HL |
1975 | ossl_quic_stream_map_release(ossl_quic_channel_get_qsm(qc->ch), qs); |
1976 | if (need_lock) | |
1977 | quic_unlock(qc); | |
1978 | ||
cb5c208b | 1979 | return NULL; |
13ac037d HL |
1980 | |
1981 | } | |
1982 | ||
1983 | QUIC_TAKES_LOCK | |
1984 | SSL *ossl_quic_conn_stream_new(SSL *s, uint64_t flags) | |
1985 | { | |
1986 | QCTX ctx; | |
1987 | ||
a954f761 | 1988 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
13ac037d HL |
1989 | return NULL; |
1990 | ||
faa3a180 | 1991 | return quic_conn_stream_new(&ctx, flags, /*need_lock=*/1); |
cb5c208b HL |
1992 | } |
1993 | ||
22d53c88 HL |
1994 | /* |
1995 | * QUIC Front-End I/O API: Steady-State Operations | |
1996 | * =============================================== | |
1997 | * | |
1998 | * Here we dispatch calls to the steady-state front-end I/O API functions; that | |
1999 | * is, the functions used during the established phase of a QUIC connection | |
2000 | * (e.g. SSL_read, SSL_write). | |
2001 | * | |
2002 | * Each function must handle both blocking and non-blocking modes. As discussed | |
2003 | * above, all QUIC I/O is implemented using non-blocking mode internally. | |
2004 | * | |
2005 | * SSL_get_error => partially implemented by ossl_quic_get_error | |
2006 | * (BIO/)SSL_read => ossl_quic_read | |
2007 | * (BIO/)SSL_write => ossl_quic_write | |
2008 | * SSL_pending => ossl_quic_pending | |
a9979965 | 2009 | * SSL_stream_conclude => ossl_quic_conn_stream_conclude |
2525109f | 2010 | * SSL_key_update => ossl_quic_key_update |
22d53c88 HL |
2011 | */ |
2012 | ||
2013 | /* SSL_get_error */ | |
072328dd | 2014 | int ossl_quic_get_error(const SSL *s, int i) |
e44795bd | 2015 | { |
072328dd | 2016 | QCTX ctx; |
5c3474ea | 2017 | int net_error, last_error; |
072328dd HL |
2018 | |
2019 | if (!expect_quic(s, &ctx)) | |
2020 | return 0; | |
2021 | ||
5c3474ea TM |
2022 | quic_lock(ctx.qc); |
2023 | net_error = ossl_quic_channel_net_error(ctx.qc->ch); | |
2024 | last_error = ctx.is_stream ? ctx.xso->last_error : ctx.qc->last_error; | |
2025 | quic_unlock(ctx.qc); | |
2026 | ||
2027 | if (net_error) | |
2028 | return SSL_ERROR_SYSCALL; | |
2029 | ||
2030 | return last_error; | |
e44795bd TM |
2031 | } |
2032 | ||
22d53c88 HL |
2033 | /* |
2034 | * SSL_write | |
2035 | * --------- | |
2036 | * | |
2037 | * The set of functions below provide the implementation of the public SSL_write | |
2038 | * function. We must handle: | |
2039 | * | |
2040 | * - both blocking and non-blocking operation at the application level, | |
2041 | * depending on how we are configured; | |
2042 | * | |
2043 | * - SSL_MODE_ENABLE_PARTIAL_WRITE being on or off; | |
2044 | * | |
2045 | * - SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER. | |
2046 | * | |
2047 | */ | |
4847599b | 2048 | QUIC_NEEDS_LOCK |
cb5c208b | 2049 | static void quic_post_write(QUIC_XSO *xso, int did_append, int do_tick) |
22d53c88 HL |
2050 | { |
2051 | /* | |
2052 | * We have appended at least one byte to the stream. | |
2053 | * Potentially mark stream as active, depending on FC. | |
2054 | */ | |
2055 | if (did_append) | |
cb5c208b HL |
2056 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(xso->conn->ch), |
2057 | xso->stream); | |
22d53c88 HL |
2058 | |
2059 | /* | |
2060 | * Try and send. | |
2061 | * | |
44cb36d0 TM |
2062 | * TODO(QUIC FUTURE): It is probably inefficient to try and do this |
2063 | * immediately, plus we should eventually consider Nagle's algorithm. | |
22d53c88 HL |
2064 | */ |
2065 | if (do_tick) | |
cb5c208b | 2066 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(xso->conn->ch), 0); |
22d53c88 HL |
2067 | } |
2068 | ||
2069 | struct quic_write_again_args { | |
cb5c208b | 2070 | QUIC_XSO *xso; |
22d53c88 HL |
2071 | const unsigned char *buf; |
2072 | size_t len; | |
2073 | size_t total_written; | |
abfe3d51 | 2074 | int err; |
22d53c88 HL |
2075 | }; |
2076 | ||
4847599b | 2077 | QUIC_NEEDS_LOCK |
22d53c88 HL |
2078 | static int quic_write_again(void *arg) |
2079 | { | |
2080 | struct quic_write_again_args *args = arg; | |
2081 | size_t actual_written = 0; | |
2082 | ||
6d6b3a03 | 2083 | if (!quic_mutation_allowed(args->xso->conn, /*req_active=*/1)) |
22d53c88 HL |
2084 | /* If connection is torn down due to an error while blocking, stop. */ |
2085 | return -2; | |
2086 | ||
abfe3d51 HL |
2087 | if (!quic_validate_for_write(args->xso, &args->err)) |
2088 | /* | |
2089 | * Stream may have become invalid for write due to connection events | |
2090 | * while we blocked. | |
2091 | */ | |
2092 | return -2; | |
2093 | ||
2094 | args->err = ERR_R_INTERNAL_ERROR; | |
cb5c208b | 2095 | if (!ossl_quic_sstream_append(args->xso->stream->sstream, |
22d53c88 HL |
2096 | args->buf, args->len, &actual_written)) |
2097 | return -2; | |
2098 | ||
cb5c208b | 2099 | quic_post_write(args->xso, actual_written > 0, 0); |
22d53c88 HL |
2100 | |
2101 | args->buf += actual_written; | |
2102 | args->len -= actual_written; | |
2103 | args->total_written += actual_written; | |
2104 | ||
3f0c310b | 2105 | if (args->len == 0) |
22d53c88 HL |
2106 | /* Written everything, done. */ |
2107 | return 1; | |
2108 | ||
2109 | /* Not written everything yet, keep trying. */ | |
2110 | return 0; | |
2111 | } | |
2112 | ||
4847599b | 2113 | QUIC_NEEDS_LOCK |
faa3a180 | 2114 | static int quic_write_blocking(QCTX *ctx, const void *buf, size_t len, |
22d53c88 | 2115 | size_t *written) |
e44795bd | 2116 | { |
22d53c88 | 2117 | int res; |
faa3a180 | 2118 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
2119 | struct quic_write_again_args args; |
2120 | size_t actual_written = 0; | |
2121 | ||
2122 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 2123 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, |
22d53c88 HL |
2124 | &actual_written)) { |
2125 | /* Stream already finished or allocation error. */ | |
2126 | *written = 0; | |
faa3a180 | 2127 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2128 | } |
2129 | ||
cb5c208b | 2130 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
2131 | |
2132 | if (actual_written == len) { | |
2133 | /* Managed to append everything on the first try. */ | |
2134 | *written = actual_written; | |
2135 | return 1; | |
2136 | } | |
2137 | ||
2138 | /* | |
2139 | * We did not manage to append all of the data immediately, so the stream | |
2140 | * buffer has probably filled up. This means we need to block until some of | |
2141 | * it is freed up. | |
2142 | */ | |
cb5c208b | 2143 | args.xso = xso; |
22d53c88 HL |
2144 | args.buf = (const unsigned char *)buf + actual_written; |
2145 | args.len = len - actual_written; | |
2146 | args.total_written = 0; | |
abfe3d51 | 2147 | args.err = ERR_R_INTERNAL_ERROR; |
22d53c88 | 2148 | |
cb5c208b | 2149 | res = block_until_pred(xso->conn, quic_write_again, &args, 0); |
22d53c88 | 2150 | if (res <= 0) { |
6d6b3a03 | 2151 | if (!quic_mutation_allowed(xso->conn, /*req_active=*/1)) |
faa3a180 | 2152 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
22d53c88 | 2153 | else |
abfe3d51 | 2154 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, args.err, NULL); |
22d53c88 HL |
2155 | } |
2156 | ||
2157 | *written = args.total_written; | |
e44795bd TM |
2158 | return 1; |
2159 | } | |
2160 | ||
ca41f6b7 HL |
2161 | /* |
2162 | * Functions to manage All-or-Nothing (AON) (that is, non-ENABLE_PARTIAL_WRITE) | |
2163 | * write semantics. | |
2164 | */ | |
cb5c208b | 2165 | static void aon_write_begin(QUIC_XSO *xso, const unsigned char *buf, |
22d53c88 HL |
2166 | size_t buf_len, size_t already_sent) |
2167 | { | |
cb5c208b | 2168 | assert(!xso->aon_write_in_progress); |
22d53c88 | 2169 | |
cb5c208b HL |
2170 | xso->aon_write_in_progress = 1; |
2171 | xso->aon_buf_base = buf; | |
2172 | xso->aon_buf_pos = already_sent; | |
2173 | xso->aon_buf_len = buf_len; | |
22d53c88 HL |
2174 | } |
2175 | ||
cb5c208b | 2176 | static void aon_write_finish(QUIC_XSO *xso) |
22d53c88 | 2177 | { |
cb5c208b HL |
2178 | xso->aon_write_in_progress = 0; |
2179 | xso->aon_buf_base = NULL; | |
2180 | xso->aon_buf_pos = 0; | |
2181 | xso->aon_buf_len = 0; | |
22d53c88 HL |
2182 | } |
2183 | ||
4847599b | 2184 | QUIC_NEEDS_LOCK |
faa3a180 | 2185 | static int quic_write_nonblocking_aon(QCTX *ctx, const void *buf, |
22d53c88 | 2186 | size_t len, size_t *written) |
e44795bd | 2187 | { |
faa3a180 | 2188 | QUIC_XSO *xso = ctx->xso; |
22d53c88 HL |
2189 | const void *actual_buf; |
2190 | size_t actual_len, actual_written = 0; | |
2191 | int accept_moving_buffer | |
cb5c208b | 2192 | = ((xso->ssl_mode & SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER) != 0); |
22d53c88 | 2193 | |
cb5c208b | 2194 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2195 | /* |
2196 | * We are in the middle of an AON write (i.e., a previous write did not | |
75b2920a HL |
2197 | * manage to append all data to the SSTREAM and we have Enable Partial |
2198 | * Write (EPW) mode disabled.) | |
22d53c88 | 2199 | */ |
cb5c208b HL |
2200 | if ((!accept_moving_buffer && xso->aon_buf_base != buf) |
2201 | || len != xso->aon_buf_len) | |
22d53c88 HL |
2202 | /* |
2203 | * Pointer must not have changed if we are not in accept moving | |
2204 | * buffer mode. Length must never change. | |
2205 | */ | |
faa3a180 | 2206 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, SSL_R_BAD_WRITE_RETRY, NULL); |
22d53c88 | 2207 | |
cb5c208b HL |
2208 | actual_buf = (unsigned char *)buf + xso->aon_buf_pos; |
2209 | actual_len = len - xso->aon_buf_pos; | |
22d53c88 HL |
2210 | assert(actual_len > 0); |
2211 | } else { | |
2212 | actual_buf = buf; | |
2213 | actual_len = len; | |
2214 | } | |
2215 | ||
2216 | /* First make a best effort to append as much of the data as possible. */ | |
cb5c208b | 2217 | if (!ossl_quic_sstream_append(xso->stream->sstream, actual_buf, actual_len, |
22d53c88 HL |
2218 | &actual_written)) { |
2219 | /* Stream already finished or allocation error. */ | |
2220 | *written = 0; | |
faa3a180 | 2221 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2222 | } |
2223 | ||
cb5c208b | 2224 | quic_post_write(xso, actual_written > 0, 1); |
22d53c88 HL |
2225 | |
2226 | if (actual_written == actual_len) { | |
2227 | /* We have sent everything. */ | |
cb5c208b | 2228 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2229 | /* |
2230 | * We have sent everything, and we were in the middle of an AON | |
2231 | * write. The output write length is the total length of the AON | |
2232 | * buffer, not however many bytes we managed to write to the stream | |
2233 | * in this call. | |
2234 | */ | |
cb5c208b HL |
2235 | *written = xso->aon_buf_len; |
2236 | aon_write_finish(xso); | |
22d53c88 HL |
2237 | } else { |
2238 | *written = actual_written; | |
2239 | } | |
2240 | ||
2241 | return 1; | |
2242 | } | |
2243 | ||
cb5c208b | 2244 | if (xso->aon_write_in_progress) { |
22d53c88 HL |
2245 | /* |
2246 | * AON write is in progress but we have not written everything yet. We | |
2247 | * may have managed to send zero bytes, or some number of bytes less | |
2248 | * than the total remaining which need to be appended during this | |
2249 | * AON operation. | |
2250 | */ | |
cb5c208b HL |
2251 | xso->aon_buf_pos += actual_written; |
2252 | assert(xso->aon_buf_pos < xso->aon_buf_len); | |
faa3a180 | 2253 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
22d53c88 HL |
2254 | } |
2255 | ||
08e49012 | 2256 | /* |
22d53c88 HL |
2257 | * Not in an existing AON operation but partial write is not enabled, so we |
2258 | * need to begin a new AON operation. However we needn't bother if we didn't | |
2259 | * actually append anything. | |
08e49012 | 2260 | */ |
22d53c88 | 2261 | if (actual_written > 0) |
cb5c208b | 2262 | aon_write_begin(xso, buf, len, actual_written); |
e44795bd | 2263 | |
22d53c88 HL |
2264 | /* |
2265 | * AON - We do not publicly admit to having appended anything until AON | |
2266 | * completes. | |
2267 | */ | |
2268 | *written = 0; | |
faa3a180 | 2269 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_WANT_WRITE); |
e44795bd TM |
2270 | } |
2271 | ||
4847599b | 2272 | QUIC_NEEDS_LOCK |
faa3a180 | 2273 | static int quic_write_nonblocking_epw(QCTX *ctx, const void *buf, size_t len, |
22d53c88 | 2274 | size_t *written) |
e44795bd | 2275 | { |
faa3a180 HL |
2276 | QUIC_XSO *xso = ctx->xso; |
2277 | ||
22d53c88 | 2278 | /* Simple best effort operation. */ |
cb5c208b | 2279 | if (!ossl_quic_sstream_append(xso->stream->sstream, buf, len, written)) { |
22d53c88 HL |
2280 | /* Stream already finished or allocation error. */ |
2281 | *written = 0; | |
faa3a180 | 2282 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2283 | } |
2284 | ||
cb5c208b | 2285 | quic_post_write(xso, *written > 0, 1); |
e44795bd TM |
2286 | return 1; |
2287 | } | |
d5ab48a1 | 2288 | |
abfe3d51 HL |
2289 | QUIC_NEEDS_LOCK |
2290 | static int quic_validate_for_write(QUIC_XSO *xso, int *err) | |
2291 | { | |
2292 | QUIC_STREAM_MAP *qsm; | |
2293 | ||
2294 | if (xso == NULL || xso->stream == NULL) { | |
2295 | *err = ERR_R_INTERNAL_ERROR; | |
2296 | return 0; | |
2297 | } | |
2298 | ||
2299 | switch (xso->stream->send_state) { | |
2300 | default: | |
2301 | case QUIC_SSTREAM_STATE_NONE: | |
2302 | *err = SSL_R_STREAM_RECV_ONLY; | |
2303 | return 0; | |
2304 | ||
2305 | case QUIC_SSTREAM_STATE_READY: | |
2306 | qsm = ossl_quic_channel_get_qsm(xso->conn->ch); | |
2307 | ||
2308 | if (!ossl_quic_stream_map_ensure_send_part_id(qsm, xso->stream)) { | |
2309 | *err = ERR_R_INTERNAL_ERROR; | |
2310 | return 0; | |
2311 | } | |
2312 | ||
2313 | /* FALLTHROUGH */ | |
2314 | case QUIC_SSTREAM_STATE_SEND: | |
2315 | case QUIC_SSTREAM_STATE_DATA_SENT: | |
2316 | case QUIC_SSTREAM_STATE_DATA_RECVD: | |
2317 | if (ossl_quic_sstream_get_final_size(xso->stream->sstream, NULL)) { | |
2318 | *err = SSL_R_STREAM_FINISHED; | |
2319 | return 0; | |
2320 | } | |
2321 | ||
2322 | return 1; | |
2323 | ||
2324 | case QUIC_SSTREAM_STATE_RESET_SENT: | |
2325 | case QUIC_SSTREAM_STATE_RESET_RECVD: | |
2326 | *err = SSL_R_STREAM_RESET; | |
2327 | return 0; | |
2328 | } | |
2329 | } | |
2330 | ||
a8489257 | 2331 | QUIC_TAKES_LOCK |
22d53c88 | 2332 | int ossl_quic_write(SSL *s, const void *buf, size_t len, size_t *written) |
d5ab48a1 | 2333 | { |
a8489257 | 2334 | int ret; |
072328dd | 2335 | QCTX ctx; |
abfe3d51 | 2336 | int partial_write, err; |
22d53c88 HL |
2337 | |
2338 | *written = 0; | |
2339 | ||
a954f761 | 2340 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, /*io=*/1, &ctx)) |
8b7be3aa | 2341 | return 0; |
a8489257 | 2342 | |
cb5c208b | 2343 | partial_write = ((ctx.xso->ssl_mode & SSL_MODE_ENABLE_PARTIAL_WRITE) != 0); |
072328dd | 2344 | |
6d6b3a03 | 2345 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/0)) { |
faa3a180 | 2346 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2347 | goto out; |
2348 | } | |
22d53c88 | 2349 | |
ca41f6b7 HL |
2350 | /* |
2351 | * If we haven't finished the handshake, try to advance it. | |
2352 | * We don't accept writes until the handshake is completed. | |
2353 | */ | |
faa3a180 | 2354 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2355 | ret = 0; |
2356 | goto out; | |
2357 | } | |
ca41f6b7 | 2358 | |
abfe3d51 HL |
2359 | /* Ensure correct stream state, stream send part not concluded, etc. */ |
2360 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2361 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2362 | goto out; |
2363 | } | |
22d53c88 | 2364 | |
33f6ad17 MC |
2365 | if (len == 0) { |
2366 | ret = 1; | |
2367 | goto out; | |
2368 | } | |
2369 | ||
cb5c208b | 2370 | if (xso_blocking_mode(ctx.xso)) |
faa3a180 | 2371 | ret = quic_write_blocking(&ctx, buf, len, written); |
22d53c88 | 2372 | else if (partial_write) |
faa3a180 | 2373 | ret = quic_write_nonblocking_epw(&ctx, buf, len, written); |
22d53c88 | 2374 | else |
faa3a180 | 2375 | ret = quic_write_nonblocking_aon(&ctx, buf, len, written); |
a8489257 HL |
2376 | |
2377 | out: | |
072328dd | 2378 | quic_unlock(ctx.qc); |
a8489257 | 2379 | return ret; |
d5ab48a1 RL |
2380 | } |
2381 | ||
2382 | /* | |
22d53c88 HL |
2383 | * SSL_read |
2384 | * -------- | |
d5ab48a1 | 2385 | */ |
22d53c88 | 2386 | struct quic_read_again_args { |
faa3a180 | 2387 | QCTX *ctx; |
22d53c88 HL |
2388 | QUIC_STREAM *stream; |
2389 | void *buf; | |
2390 | size_t len; | |
2391 | size_t *bytes_read; | |
2392 | int peek; | |
2393 | }; | |
2394 | ||
e0bd2825 HL |
2395 | QUIC_NEEDS_LOCK |
2396 | static int quic_validate_for_read(QUIC_XSO *xso, int *err, int *eos) | |
2397 | { | |
08d4b7eb | 2398 | QUIC_STREAM_MAP *qsm; |
e0bd2825 | 2399 | |
5ed3a435 HL |
2400 | *eos = 0; |
2401 | ||
e0bd2825 HL |
2402 | if (xso == NULL || xso->stream == NULL) { |
2403 | *err = ERR_R_INTERNAL_ERROR; | |
2404 | return 0; | |
2405 | } | |
2406 | ||
2407 | switch (xso->stream->recv_state) { | |
2408 | default: | |
2409 | case QUIC_RSTREAM_STATE_NONE: | |
2410 | *err = SSL_R_STREAM_SEND_ONLY; | |
2411 | return 0; | |
2412 | ||
2413 | case QUIC_RSTREAM_STATE_RECV: | |
2414 | case QUIC_RSTREAM_STATE_SIZE_KNOWN: | |
2415 | case QUIC_RSTREAM_STATE_DATA_RECVD: | |
2416 | return 1; | |
2417 | ||
2418 | case QUIC_RSTREAM_STATE_DATA_READ: | |
2419 | *eos = 1; | |
2420 | return 0; | |
2421 | ||
2422 | case QUIC_RSTREAM_STATE_RESET_RECVD: | |
08d4b7eb HL |
2423 | qsm = ossl_quic_channel_get_qsm(xso->conn->ch); |
2424 | ossl_quic_stream_map_notify_app_read_reset_recv_part(qsm, xso->stream); | |
2425 | ||
2426 | /* FALLTHROUGH */ | |
e0bd2825 HL |
2427 | case QUIC_RSTREAM_STATE_RESET_READ: |
2428 | *err = SSL_R_STREAM_RESET; | |
2429 | return 0; | |
2430 | } | |
2431 | } | |
2432 | ||
4847599b | 2433 | QUIC_NEEDS_LOCK |
faa3a180 | 2434 | static int quic_read_actual(QCTX *ctx, |
22d53c88 HL |
2435 | QUIC_STREAM *stream, |
2436 | void *buf, size_t buf_len, | |
2437 | size_t *bytes_read, | |
2438 | int peek) | |
d5ab48a1 | 2439 | { |
e0bd2825 | 2440 | int is_fin = 0, err, eos; |
faa3a180 | 2441 | QUIC_CONNECTION *qc = ctx->qc; |
22d53c88 | 2442 | |
e0bd2825 HL |
2443 | if (!quic_validate_for_read(ctx->xso, &err, &eos)) { |
2444 | if (eos) | |
2445 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); | |
2446 | else | |
2447 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, err, NULL); | |
2448 | } | |
2449 | ||
22d53c88 HL |
2450 | if (peek) { |
2451 | if (!ossl_quic_rstream_peek(stream->rstream, buf, buf_len, | |
2452 | bytes_read, &is_fin)) | |
faa3a180 | 2453 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2454 | |
2455 | } else { | |
2456 | if (!ossl_quic_rstream_read(stream->rstream, buf, buf_len, | |
2457 | bytes_read, &is_fin)) | |
faa3a180 | 2458 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2459 | } |
2460 | ||
2461 | if (!peek) { | |
2462 | if (*bytes_read > 0) { | |
2463 | /* | |
2464 | * We have read at least one byte from the stream. Inform stream-level | |
2465 | * RXFC of the retirement of controlled bytes. Update the active stream | |
2466 | * status (the RXFC may now want to emit a frame granting more credit to | |
2467 | * the peer). | |
2468 | */ | |
2469 | OSSL_RTT_INFO rtt_info; | |
d50e750e | 2470 | |
22d53c88 HL |
2471 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(qc->ch), &rtt_info); |
2472 | ||
cb5c208b | 2473 | if (!ossl_quic_rxfc_on_retire(&stream->rxfc, *bytes_read, |
22d53c88 | 2474 | rtt_info.smoothed_rtt)) |
faa3a180 | 2475 | return QUIC_RAISE_NON_NORMAL_ERROR(ctx, ERR_R_INTERNAL_ERROR, NULL); |
22d53c88 HL |
2476 | } |
2477 | ||
08d4b7eb HL |
2478 | if (is_fin && !peek) { |
2479 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(ctx->qc->ch); | |
2480 | ||
2481 | ossl_quic_stream_map_notify_totally_read(qsm, ctx->xso->stream); | |
2482 | } | |
22d53c88 HL |
2483 | |
2484 | if (*bytes_read > 0) | |
2485 | ossl_quic_stream_map_update_state(ossl_quic_channel_get_qsm(qc->ch), | |
cb5c208b | 2486 | stream); |
22d53c88 HL |
2487 | } |
2488 | ||
72622c0b MC |
2489 | if (*bytes_read == 0 && is_fin) |
2490 | return QUIC_RAISE_NORMAL_ERROR(ctx, SSL_ERROR_ZERO_RETURN); | |
2491 | ||
d5ab48a1 RL |
2492 | return 1; |
2493 | } | |
2494 | ||
4847599b | 2495 | QUIC_NEEDS_LOCK |
22d53c88 | 2496 | static int quic_read_again(void *arg) |
d5ab48a1 | 2497 | { |
22d53c88 HL |
2498 | struct quic_read_again_args *args = arg; |
2499 | ||
6d6b3a03 | 2500 | if (!quic_mutation_allowed(args->ctx->qc, /*req_active=*/1)) { |
22d53c88 | 2501 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 2502 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
ca41f6b7 | 2503 | return -1; |
a9979965 | 2504 | } |
22d53c88 | 2505 | |
faa3a180 | 2506 | if (!quic_read_actual(args->ctx, args->stream, |
22d53c88 HL |
2507 | args->buf, args->len, args->bytes_read, |
2508 | args->peek)) | |
2509 | return -1; | |
2510 | ||
2511 | if (*args->bytes_read > 0) | |
2512 | /* got at least one byte, the SSL_read op can finish now */ | |
2513 | return 1; | |
2514 | ||
81b6b43c | 2515 | return 0; /* did not read anything, keep trying */ |
d5ab48a1 RL |
2516 | } |
2517 | ||
a8489257 | 2518 | QUIC_TAKES_LOCK |
22d53c88 | 2519 | static int quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read, int peek) |
d5ab48a1 | 2520 | { |
a8489257 | 2521 | int ret, res; |
072328dd | 2522 | QCTX ctx; |
22d53c88 HL |
2523 | struct quic_read_again_args args; |
2524 | ||
2525 | *bytes_read = 0; | |
2526 | ||
8b7be3aa | 2527 | if (!expect_quic(s, &ctx)) |
22d53c88 HL |
2528 | return 0; |
2529 | ||
a954f761 | 2530 | ctx.in_io = 1; |
072328dd | 2531 | quic_lock(ctx.qc); |
a8489257 | 2532 | |
6d6b3a03 | 2533 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/0)) { |
faa3a180 | 2534 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
a8489257 HL |
2535 | goto out; |
2536 | } | |
22d53c88 | 2537 | |
a9979965 | 2538 | /* If we haven't finished the handshake, try to advance it. */ |
faa3a180 | 2539 | if (quic_do_handshake(&ctx) < 1) { |
a8489257 HL |
2540 | ret = 0; /* ossl_quic_do_handshake raised error here */ |
2541 | goto out; | |
2542 | } | |
22d53c88 | 2543 | |
8b7be3aa HL |
2544 | if (ctx.xso == NULL) { |
2545 | /* | |
2546 | * Called on a QCSO and we don't currently have a default stream. | |
2547 | * | |
2548 | * Wait until we get a stream initiated by the peer (blocking mode) or | |
2549 | * fail if we don't have one yet (non-blocking mode). | |
2550 | */ | |
faa3a180 | 2551 | if (!qc_wait_for_default_xso_for_read(&ctx)) { |
8b7be3aa HL |
2552 | ret = 0; /* error already raised here */ |
2553 | goto out; | |
2554 | } | |
2555 | ||
2556 | ctx.xso = ctx.qc->default_xso; | |
2557 | } | |
2558 | ||
faa3a180 | 2559 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { |
a8489257 HL |
2560 | ret = 0; /* quic_read_actual raised error here */ |
2561 | goto out; | |
2562 | } | |
22d53c88 HL |
2563 | |
2564 | if (*bytes_read > 0) { | |
2565 | /* | |
2566 | * Even though we succeeded, tick the reactor here to ensure we are | |
2567 | * handling other aspects of the QUIC connection. | |
2568 | */ | |
072328dd | 2569 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); |
a8489257 | 2570 | ret = 1; |
cb5c208b | 2571 | } else if (xso_blocking_mode(ctx.xso)) { |
22d53c88 HL |
2572 | /* |
2573 | * We were not able to read anything immediately, so our stream | |
2574 | * buffer is empty. This means we need to block until we get | |
2575 | * at least one byte. | |
2576 | */ | |
faa3a180 | 2577 | args.ctx = &ctx; |
cb5c208b | 2578 | args.stream = ctx.xso->stream; |
22d53c88 HL |
2579 | args.buf = buf; |
2580 | args.len = len; | |
2581 | args.bytes_read = bytes_read; | |
2582 | args.peek = peek; | |
2583 | ||
072328dd | 2584 | res = block_until_pred(ctx.qc, quic_read_again, &args, 0); |
a8489257 | 2585 | if (res == 0) { |
faa3a180 | 2586 | ret = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 HL |
2587 | goto out; |
2588 | } else if (res < 0) { | |
2589 | ret = 0; /* quic_read_again raised error here */ | |
2590 | goto out; | |
2591 | } | |
22d53c88 | 2592 | |
a8489257 | 2593 | ret = 1; |
af8b52cf | 2594 | } else { |
780b2527 HL |
2595 | /* |
2596 | * We did not get any bytes and are not in blocking mode. | |
2597 | * Tick to see if this delivers any more. | |
2598 | */ | |
2599 | ossl_quic_reactor_tick(ossl_quic_channel_get_reactor(ctx.qc->ch), 0); | |
2600 | ||
2601 | /* Try the read again. */ | |
2602 | if (!quic_read_actual(&ctx, ctx.xso->stream, buf, len, bytes_read, peek)) { | |
2603 | ret = 0; /* quic_read_actual raised error here */ | |
2604 | goto out; | |
2605 | } | |
2606 | ||
2607 | if (*bytes_read > 0) | |
2608 | ret = 1; /* Succeeded this time. */ | |
2609 | else | |
2610 | ret = QUIC_RAISE_NORMAL_ERROR(&ctx, SSL_ERROR_WANT_READ); | |
af8b52cf | 2611 | } |
a8489257 HL |
2612 | |
2613 | out: | |
072328dd | 2614 | quic_unlock(ctx.qc); |
a8489257 | 2615 | return ret; |
d5ab48a1 RL |
2616 | } |
2617 | ||
22d53c88 HL |
2618 | int ossl_quic_read(SSL *s, void *buf, size_t len, size_t *bytes_read) |
2619 | { | |
2620 | return quic_read(s, buf, len, bytes_read, 0); | |
2621 | } | |
2622 | ||
2623 | int ossl_quic_peek(SSL *s, void *buf, size_t len, size_t *bytes_read) | |
2624 | { | |
2625 | return quic_read(s, buf, len, bytes_read, 1); | |
2626 | } | |
2627 | ||
2628 | /* | |
2629 | * SSL_pending | |
2630 | * ----------- | |
2631 | */ | |
9280d26a | 2632 | |
a8489257 | 2633 | QUIC_TAKES_LOCK |
d6e7ebba | 2634 | static size_t ossl_quic_pending_int(const SSL *s, int check_channel) |
22d53c88 | 2635 | { |
072328dd | 2636 | QCTX ctx; |
433d107a | 2637 | size_t avail = 0; |
22d53c88 HL |
2638 | int fin = 0; |
2639 | ||
c31f0612 MC |
2640 | |
2641 | if (!expect_quic(s, &ctx)) | |
22d53c88 HL |
2642 | return 0; |
2643 | ||
c31f0612 MC |
2644 | quic_lock(ctx.qc); |
2645 | ||
8ee3ee10 | 2646 | if (ctx.xso == NULL) { |
a954f761 | 2647 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_NO_STREAM, NULL); |
c31f0612 | 2648 | goto out; |
8ee3ee10 | 2649 | } |
c31f0612 | 2650 | |
2f018d14 | 2651 | if (ctx.xso->stream == NULL |
8ee3ee10 | 2652 | || !ossl_quic_stream_has_recv_buffer(ctx.xso->stream)) { |
a954f761 | 2653 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
a8489257 | 2654 | goto out; |
8ee3ee10 | 2655 | } |
22d53c88 | 2656 | |
cb5c208b | 2657 | if (!ossl_quic_rstream_available(ctx.xso->stream->rstream, &avail, &fin)) |
a8489257 | 2658 | avail = 0; |
22d53c88 | 2659 | |
d6e7ebba HL |
2660 | if (avail == 0 && check_channel && ossl_quic_channel_has_pending(ctx.qc->ch)) |
2661 | avail = 1; | |
2662 | ||
a8489257 | 2663 | out: |
072328dd | 2664 | quic_unlock(ctx.qc); |
22d53c88 HL |
2665 | return avail; |
2666 | } | |
2667 | ||
560470b5 MC |
2668 | size_t ossl_quic_pending(const SSL *s) |
2669 | { | |
d6e7ebba | 2670 | return ossl_quic_pending_int(s, /*check_channel=*/0); |
560470b5 MC |
2671 | } |
2672 | ||
072328dd | 2673 | int ossl_quic_has_pending(const SSL *s) |
560470b5 | 2674 | { |
9280d26a | 2675 | /* Do we have app-side pending data or pending URXEs or RXEs? */ |
d6e7ebba | 2676 | return ossl_quic_pending_int(s, /*check_channel=*/1) > 0; |
560470b5 MC |
2677 | } |
2678 | ||
a9979965 HL |
2679 | /* |
2680 | * SSL_stream_conclude | |
2681 | * ------------------- | |
2682 | */ | |
a8489257 | 2683 | QUIC_TAKES_LOCK |
072328dd | 2684 | int ossl_quic_conn_stream_conclude(SSL *s) |
a9979965 | 2685 | { |
072328dd HL |
2686 | QCTX ctx; |
2687 | QUIC_STREAM *qs; | |
abfe3d51 | 2688 | int err; |
072328dd | 2689 | |
a954f761 | 2690 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/0, /*io=*/0, &ctx)) |
072328dd HL |
2691 | return 0; |
2692 | ||
cb5c208b | 2693 | qs = ctx.xso->stream; |
a9979965 | 2694 | |
6d6b3a03 | 2695 | if (!quic_mutation_allowed(ctx.qc, /*req_active=*/1)) { |
072328dd | 2696 | quic_unlock(ctx.qc); |
abfe3d51 HL |
2697 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
2698 | } | |
2699 | ||
2700 | if (!quic_validate_for_write(ctx.xso, &err)) { | |
2701 | quic_unlock(ctx.qc); | |
2702 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
a8489257 HL |
2703 | } |
2704 | ||
2f018d14 | 2705 | if (ossl_quic_sstream_get_final_size(qs->sstream, NULL)) { |
072328dd | 2706 | quic_unlock(ctx.qc); |
a9979965 | 2707 | return 1; |
a8489257 | 2708 | } |
a9979965 HL |
2709 | |
2710 | ossl_quic_sstream_fin(qs->sstream); | |
cb5c208b | 2711 | quic_post_write(ctx.xso, 1, 1); |
072328dd | 2712 | quic_unlock(ctx.qc); |
a9979965 HL |
2713 | return 1; |
2714 | } | |
2715 | ||
553a4e00 HL |
2716 | /* |
2717 | * SSL_inject_net_dgram | |
2718 | * -------------------- | |
2719 | */ | |
5129e594 | 2720 | QUIC_TAKES_LOCK |
553a4e00 HL |
2721 | int SSL_inject_net_dgram(SSL *s, const unsigned char *buf, |
2722 | size_t buf_len, | |
2723 | const BIO_ADDR *peer, | |
2724 | const BIO_ADDR *local) | |
2725 | { | |
5129e594 | 2726 | int ret; |
072328dd | 2727 | QCTX ctx; |
553a4e00 HL |
2728 | QUIC_DEMUX *demux; |
2729 | ||
072328dd | 2730 | if (!expect_quic(s, &ctx)) |
553a4e00 HL |
2731 | return 0; |
2732 | ||
072328dd | 2733 | quic_lock(ctx.qc); |
5129e594 | 2734 | |
072328dd | 2735 | demux = ossl_quic_channel_get0_demux(ctx.qc->ch); |
5129e594 HL |
2736 | ret = ossl_quic_demux_inject(demux, buf, buf_len, peer, local); |
2737 | ||
072328dd | 2738 | quic_unlock(ctx.qc); |
5129e594 | 2739 | return ret; |
553a4e00 HL |
2740 | } |
2741 | ||
020d0389 HL |
2742 | /* |
2743 | * SSL_get0_connection | |
2744 | * ------------------- | |
2745 | */ | |
2746 | SSL *ossl_quic_get0_connection(SSL *s) | |
2747 | { | |
2748 | QCTX ctx; | |
2749 | ||
2750 | if (!expect_quic(s, &ctx)) | |
2751 | return NULL; | |
2752 | ||
2753 | return &ctx.qc->ssl; | |
2754 | } | |
2755 | ||
1bca3f1b HL |
2756 | /* |
2757 | * SSL_get_stream_type | |
2758 | * ------------------- | |
2759 | */ | |
2760 | int ossl_quic_get_stream_type(SSL *s) | |
2761 | { | |
2762 | QCTX ctx; | |
2763 | ||
2764 | if (!expect_quic(s, &ctx)) | |
59c5c016 | 2765 | return SSL_STREAM_TYPE_BIDI; |
1bca3f1b HL |
2766 | |
2767 | if (ctx.xso == NULL) { | |
2768 | /* | |
59c5c016 HL |
2769 | * If deferred XSO creation has yet to occur, proceed according to the |
2770 | * default stream mode. If AUTO_BIDI or AUTO_UNI is set, we cannot know | |
2771 | * what kind of stream will be created yet, so return BIDI on the basis | |
2772 | * that at this time, the client still has the option of calling | |
2773 | * SSL_read() or SSL_write() first. | |
1bca3f1b | 2774 | */ |
59c5c016 HL |
2775 | if (ctx.qc->default_xso_created |
2776 | || ctx.qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
1bca3f1b | 2777 | return SSL_STREAM_TYPE_NONE; |
59c5c016 HL |
2778 | else |
2779 | return SSL_STREAM_TYPE_BIDI; | |
1bca3f1b HL |
2780 | } |
2781 | ||
2782 | if (ossl_quic_stream_is_bidi(ctx.xso->stream)) | |
2783 | return SSL_STREAM_TYPE_BIDI; | |
2784 | ||
2785 | if (ossl_quic_stream_is_server_init(ctx.xso->stream) != ctx.qc->as_server) | |
2786 | return SSL_STREAM_TYPE_READ; | |
2787 | else | |
2788 | return SSL_STREAM_TYPE_WRITE; | |
2789 | } | |
2790 | ||
19cb0887 HL |
2791 | /* |
2792 | * SSL_get_stream_id | |
2793 | * ----------------- | |
2794 | */ | |
cb68ce9f | 2795 | QUIC_TAKES_LOCK |
19cb0887 HL |
2796 | uint64_t ossl_quic_get_stream_id(SSL *s) |
2797 | { | |
2798 | QCTX ctx; | |
8b7be3aa | 2799 | uint64_t id; |
19cb0887 | 2800 | |
a954f761 | 2801 | if (!expect_quic_with_stream_lock(s, /*remote_init=*/-1, /*io=*/0, &ctx)) |
19cb0887 HL |
2802 | return UINT64_MAX; |
2803 | ||
8b7be3aa HL |
2804 | id = ctx.xso->stream->id; |
2805 | quic_unlock(ctx.qc); | |
2806 | ||
2807 | return id; | |
2808 | } | |
2809 | ||
2810 | /* | |
2811 | * SSL_set_default_stream_mode | |
2812 | * --------------------------- | |
2813 | */ | |
cb68ce9f | 2814 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2815 | int ossl_quic_set_default_stream_mode(SSL *s, uint32_t mode) |
2816 | { | |
2817 | QCTX ctx; | |
2818 | ||
a954f761 | 2819 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
8b7be3aa HL |
2820 | return 0; |
2821 | ||
2822 | quic_lock(ctx.qc); | |
2823 | ||
4669a3d7 HL |
2824 | if (ctx.qc->default_xso_created) { |
2825 | quic_unlock(ctx.qc); | |
a954f761 | 2826 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 2827 | "too late to change default stream mode"); |
4669a3d7 | 2828 | } |
8b7be3aa HL |
2829 | |
2830 | switch (mode) { | |
2831 | case SSL_DEFAULT_STREAM_MODE_NONE: | |
2832 | case SSL_DEFAULT_STREAM_MODE_AUTO_BIDI: | |
2833 | case SSL_DEFAULT_STREAM_MODE_AUTO_UNI: | |
2834 | ctx.qc->default_stream_mode = mode; | |
2835 | break; | |
2836 | default: | |
2837 | quic_unlock(ctx.qc); | |
a954f761 | 2838 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 | 2839 | "bad default stream type"); |
8b7be3aa HL |
2840 | } |
2841 | ||
2842 | quic_unlock(ctx.qc); | |
2843 | return 1; | |
2844 | } | |
2845 | ||
2846 | /* | |
2847 | * SSL_detach_stream | |
2848 | * ----------------- | |
2849 | */ | |
cb68ce9f | 2850 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2851 | SSL *ossl_quic_detach_stream(SSL *s) |
2852 | { | |
2853 | QCTX ctx; | |
9cab4bd5 | 2854 | QUIC_XSO *xso = NULL; |
8b7be3aa | 2855 | |
a954f761 | 2856 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
8b7be3aa HL |
2857 | return NULL; |
2858 | ||
2859 | quic_lock(ctx.qc); | |
2860 | ||
8b7be3aa | 2861 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 HL |
2862 | /* QC ref to any default XSO is transferred to us and to caller. */ |
2863 | qc_set_default_xso_keep_ref(ctx.qc, NULL, /*touch=*/1, &xso); | |
8b7be3aa HL |
2864 | |
2865 | quic_unlock(ctx.qc); | |
2866 | ||
9cab4bd5 | 2867 | return xso != NULL ? &xso->ssl : NULL; |
8b7be3aa HL |
2868 | } |
2869 | ||
2870 | /* | |
2871 | * SSL_attach_stream | |
2872 | * ----------------- | |
2873 | */ | |
cb68ce9f | 2874 | QUIC_TAKES_LOCK |
8b7be3aa HL |
2875 | int ossl_quic_attach_stream(SSL *conn, SSL *stream) |
2876 | { | |
2877 | QCTX ctx; | |
9cab4bd5 HL |
2878 | QUIC_XSO *xso; |
2879 | int nref; | |
8b7be3aa | 2880 | |
a954f761 | 2881 | if (!expect_quic_conn_only(conn, /*io=*/0, &ctx)) |
8b7be3aa HL |
2882 | return 0; |
2883 | ||
2884 | if (stream == NULL || stream->type != SSL_TYPE_QUIC_XSO) | |
a954f761 | 2885 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_NULL_PARAMETER, |
8ee3ee10 | 2886 | "stream to attach must be a valid QUIC stream"); |
8b7be3aa | 2887 | |
9cab4bd5 HL |
2888 | xso = (QUIC_XSO *)stream; |
2889 | ||
8b7be3aa HL |
2890 | quic_lock(ctx.qc); |
2891 | ||
2892 | if (ctx.qc->default_xso != NULL) { | |
2893 | quic_unlock(ctx.qc); | |
a954f761 | 2894 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, |
8ee3ee10 | 2895 | "connection already has a default stream"); |
8b7be3aa HL |
2896 | } |
2897 | ||
9cab4bd5 HL |
2898 | /* |
2899 | * It is a caller error for the XSO being attached as a default XSO to have | |
2900 | * more than one ref. | |
2901 | */ | |
4eecc6aa | 2902 | if (!CRYPTO_GET_REF(&xso->ssl.references, &nref)) { |
9cab4bd5 | 2903 | quic_unlock(ctx.qc); |
a954f761 | 2904 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, |
8ee3ee10 | 2905 | "ref"); |
9cab4bd5 HL |
2906 | } |
2907 | ||
2908 | if (nref != 1) { | |
2909 | quic_unlock(ctx.qc); | |
a954f761 | 2910 | return QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, |
8ee3ee10 TM |
2911 | "stream being attached must have " |
2912 | "only 1 reference"); | |
9cab4bd5 HL |
2913 | } |
2914 | ||
2915 | /* Caller's reference to the XSO is transferred to us. */ | |
8b7be3aa | 2916 | /* Calling this function inhibits default XSO autocreation. */ |
9cab4bd5 | 2917 | qc_set_default_xso(ctx.qc, xso, /*touch=*/1); |
8b7be3aa HL |
2918 | |
2919 | quic_unlock(ctx.qc); | |
2920 | return 1; | |
19cb0887 HL |
2921 | } |
2922 | ||
8a90df34 | 2923 | /* |
83df44ae HL |
2924 | * SSL_set_incoming_stream_policy |
2925 | * ------------------------------ | |
8a90df34 | 2926 | */ |
995ff282 | 2927 | QUIC_NEEDS_LOCK |
83df44ae | 2928 | static int qc_get_effective_incoming_stream_policy(QUIC_CONNECTION *qc) |
995ff282 | 2929 | { |
83df44ae HL |
2930 | switch (qc->incoming_stream_policy) { |
2931 | case SSL_INCOMING_STREAM_POLICY_AUTO: | |
995ff282 HL |
2932 | if ((qc->default_xso == NULL && !qc->default_xso_created) |
2933 | || qc->default_stream_mode == SSL_DEFAULT_STREAM_MODE_NONE) | |
83df44ae | 2934 | return SSL_INCOMING_STREAM_POLICY_ACCEPT; |
995ff282 | 2935 | else |
83df44ae | 2936 | return SSL_INCOMING_STREAM_POLICY_REJECT; |
995ff282 HL |
2937 | |
2938 | default: | |
83df44ae | 2939 | return qc->incoming_stream_policy; |
995ff282 HL |
2940 | } |
2941 | } | |
2942 | ||
2943 | QUIC_NEEDS_LOCK | |
2944 | static void qc_update_reject_policy(QUIC_CONNECTION *qc) | |
2945 | { | |
83df44ae HL |
2946 | int policy = qc_get_effective_incoming_stream_policy(qc); |
2947 | int enable_reject = (policy == SSL_INCOMING_STREAM_POLICY_REJECT); | |
995ff282 HL |
2948 | |
2949 | ossl_quic_channel_set_incoming_stream_auto_reject(qc->ch, | |
2950 | enable_reject, | |
83df44ae | 2951 | qc->incoming_stream_aec); |
995ff282 HL |
2952 | } |
2953 | ||
cb68ce9f | 2954 | QUIC_TAKES_LOCK |
83df44ae HL |
2955 | int ossl_quic_set_incoming_stream_policy(SSL *s, int policy, |
2956 | uint64_t aec) | |
8a90df34 HL |
2957 | { |
2958 | int ret = 1; | |
2959 | QCTX ctx; | |
2960 | ||
a954f761 | 2961 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
8a90df34 HL |
2962 | return 0; |
2963 | ||
2964 | quic_lock(ctx.qc); | |
2965 | ||
2966 | switch (policy) { | |
83df44ae HL |
2967 | case SSL_INCOMING_STREAM_POLICY_AUTO: |
2968 | case SSL_INCOMING_STREAM_POLICY_ACCEPT: | |
2969 | case SSL_INCOMING_STREAM_POLICY_REJECT: | |
2970 | ctx.qc->incoming_stream_policy = policy; | |
2971 | ctx.qc->incoming_stream_aec = aec; | |
8a90df34 HL |
2972 | break; |
2973 | ||
2974 | default: | |
a954f761 | 2975 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
8a90df34 HL |
2976 | ret = 0; |
2977 | break; | |
2978 | } | |
2979 | ||
995ff282 | 2980 | qc_update_reject_policy(ctx.qc); |
8a90df34 HL |
2981 | quic_unlock(ctx.qc); |
2982 | return ret; | |
2983 | } | |
2984 | ||
cb68ce9f HL |
2985 | /* |
2986 | * SSL_accept_stream | |
2987 | * ----------------- | |
2988 | */ | |
cb68ce9f | 2989 | struct wait_for_incoming_stream_args { |
faa3a180 | 2990 | QCTX *ctx; |
cb68ce9f HL |
2991 | QUIC_STREAM *qs; |
2992 | }; | |
2993 | ||
2994 | QUIC_NEEDS_LOCK | |
2995 | static int wait_for_incoming_stream(void *arg) | |
2996 | { | |
2997 | struct wait_for_incoming_stream_args *args = arg; | |
faa3a180 HL |
2998 | QUIC_CONNECTION *qc = args->ctx->qc; |
2999 | QUIC_STREAM_MAP *qsm = ossl_quic_channel_get_qsm(qc->ch); | |
cb68ce9f | 3000 | |
6d6b3a03 | 3001 | if (!quic_mutation_allowed(qc, /*req_active=*/1)) { |
cb68ce9f | 3002 | /* If connection is torn down due to an error while blocking, stop. */ |
faa3a180 | 3003 | QUIC_RAISE_NON_NORMAL_ERROR(args->ctx, SSL_R_PROTOCOL_IS_SHUTDOWN, NULL); |
cb68ce9f HL |
3004 | return -1; |
3005 | } | |
3006 | ||
3007 | args->qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
3008 | if (args->qs != NULL) | |
3009 | return 1; /* got a stream */ | |
3010 | ||
3011 | return 0; /* did not get a stream, keep trying */ | |
3012 | } | |
3013 | ||
3014 | QUIC_TAKES_LOCK | |
3015 | SSL *ossl_quic_accept_stream(SSL *s, uint64_t flags) | |
3016 | { | |
3017 | QCTX ctx; | |
3018 | int ret; | |
3019 | SSL *new_s = NULL; | |
3020 | QUIC_STREAM_MAP *qsm; | |
3021 | QUIC_STREAM *qs; | |
3022 | QUIC_XSO *xso; | |
90cecc40 | 3023 | OSSL_RTT_INFO rtt_info; |
cb68ce9f | 3024 | |
a954f761 | 3025 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
cb68ce9f HL |
3026 | return NULL; |
3027 | ||
3028 | quic_lock(ctx.qc); | |
3029 | ||
83df44ae | 3030 | if (qc_get_effective_incoming_stream_policy(ctx.qc) |
8ee3ee10 | 3031 | == SSL_INCOMING_STREAM_POLICY_REJECT) { |
a954f761 | 3032 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, NULL); |
cb68ce9f | 3033 | goto out; |
8ee3ee10 | 3034 | } |
cb68ce9f HL |
3035 | |
3036 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
3037 | ||
3038 | qs = ossl_quic_stream_map_peek_accept_queue(qsm); | |
3039 | if (qs == NULL) { | |
3040 | if (qc_blocking_mode(ctx.qc) | |
3041 | && (flags & SSL_ACCEPT_STREAM_NO_BLOCK) == 0) { | |
3042 | struct wait_for_incoming_stream_args args; | |
3043 | ||
faa3a180 | 3044 | args.ctx = &ctx; |
cb68ce9f HL |
3045 | args.qs = NULL; |
3046 | ||
3047 | ret = block_until_pred(ctx.qc, wait_for_incoming_stream, &args, 0); | |
3048 | if (ret == 0) { | |
faa3a180 | 3049 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
cb68ce9f HL |
3050 | goto out; |
3051 | } else if (ret < 0 || args.qs == NULL) { | |
3052 | goto out; | |
3053 | } | |
3054 | ||
3055 | qs = args.qs; | |
3056 | } else { | |
3057 | goto out; | |
3058 | } | |
3059 | } | |
3060 | ||
3061 | xso = create_xso_from_stream(ctx.qc, qs); | |
3062 | if (xso == NULL) | |
3063 | goto out; | |
3064 | ||
90cecc40 HL |
3065 | ossl_statm_get_rtt_info(ossl_quic_channel_get_statm(ctx.qc->ch), &rtt_info); |
3066 | ossl_quic_stream_map_remove_from_accept_queue(qsm, qs, | |
3067 | rtt_info.smoothed_rtt); | |
cb68ce9f HL |
3068 | new_s = &xso->ssl; |
3069 | ||
3070 | /* Calling this function inhibits default XSO autocreation. */ | |
995ff282 | 3071 | qc_touch_default_xso(ctx.qc); /* inhibits default XSO */ |
cb68ce9f HL |
3072 | |
3073 | out: | |
3074 | quic_unlock(ctx.qc); | |
3075 | return new_s; | |
3076 | } | |
3077 | ||
3078 | /* | |
3079 | * SSL_get_accept_stream_queue_len | |
3080 | * ------------------------------- | |
3081 | */ | |
3082 | QUIC_TAKES_LOCK | |
3083 | size_t ossl_quic_get_accept_stream_queue_len(SSL *s) | |
3084 | { | |
3085 | QCTX ctx; | |
3086 | size_t v; | |
3087 | ||
a954f761 | 3088 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
cb68ce9f HL |
3089 | return 0; |
3090 | ||
3091 | quic_lock(ctx.qc); | |
3092 | ||
3093 | v = ossl_quic_stream_map_get_accept_queue_len(ossl_quic_channel_get_qsm(ctx.qc->ch)); | |
3094 | ||
3095 | quic_unlock(ctx.qc); | |
3096 | return v; | |
3097 | } | |
3098 | ||
c3a04ea2 HL |
3099 | /* |
3100 | * SSL_stream_reset | |
3101 | * ---------------- | |
3102 | */ | |
3103 | int ossl_quic_stream_reset(SSL *ssl, | |
3104 | const SSL_STREAM_RESET_ARGS *args, | |
3105 | size_t args_len) | |
3106 | { | |
3107 | QCTX ctx; | |
3108 | QUIC_STREAM_MAP *qsm; | |
3109 | QUIC_STREAM *qs; | |
3110 | uint64_t error_code; | |
e0bd2825 | 3111 | int ok, err; |
c3a04ea2 | 3112 | |
a954f761 | 3113 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/0, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3114 | return 0; |
3115 | ||
3116 | qsm = ossl_quic_channel_get_qsm(ctx.qc->ch); | |
3117 | qs = ctx.xso->stream; | |
3118 | error_code = (args != NULL ? args->quic_error_code : 0); | |
3119 | ||
1d547f8f HL |
3120 | if (!quic_validate_for_write(ctx.xso, &err)) { |
3121 | ok = QUIC_RAISE_NON_NORMAL_ERROR(&ctx, err, NULL); | |
3122 | goto err; | |
3123 | } | |
e0bd2825 | 3124 | |
2f018d14 | 3125 | ok = ossl_quic_stream_map_reset_stream_send_part(qsm, qs, error_code); |
c3a04ea2 | 3126 | |
1d547f8f | 3127 | err: |
c3a04ea2 | 3128 | quic_unlock(ctx.qc); |
2f018d14 | 3129 | return ok; |
c3a04ea2 HL |
3130 | } |
3131 | ||
3132 | /* | |
3133 | * SSL_get_stream_read_state | |
3134 | * ------------------------- | |
3135 | */ | |
3136 | static void quic_classify_stream(QUIC_CONNECTION *qc, | |
3137 | QUIC_STREAM *qs, | |
3138 | int is_write, | |
3139 | int *state, | |
3140 | uint64_t *app_error_code) | |
3141 | { | |
3142 | int local_init; | |
3143 | uint64_t final_size; | |
3144 | ||
3145 | local_init = (ossl_quic_stream_is_server_init(qs) == qc->as_server); | |
3146 | ||
3147 | if (app_error_code != NULL) | |
3148 | *app_error_code = UINT64_MAX; | |
3149 | else | |
3150 | app_error_code = &final_size; /* throw away value */ | |
3151 | ||
3152 | if (!ossl_quic_stream_is_bidi(qs) && local_init != is_write) { | |
3153 | /* | |
3154 | * Unidirectional stream and this direction of transmission doesn't | |
3155 | * exist. | |
3156 | */ | |
3157 | *state = SSL_STREAM_STATE_WRONG_DIR; | |
3158 | } else if (ossl_quic_channel_is_term_any(qc->ch)) { | |
3159 | /* Connection already closed. */ | |
3160 | *state = SSL_STREAM_STATE_CONN_CLOSED; | |
5ed3a435 | 3161 | } else if (!is_write && qs->recv_state == QUIC_RSTREAM_STATE_DATA_READ) { |
c3a04ea2 HL |
3162 | /* Application has read a FIN. */ |
3163 | *state = SSL_STREAM_STATE_FINISHED; | |
3164 | } else if ((!is_write && qs->stop_sending) | |
2f018d14 | 3165 | || (is_write && ossl_quic_stream_send_is_reset(qs))) { |
c3a04ea2 HL |
3166 | /* |
3167 | * Stream has been reset locally. FIN takes precedence over this for the | |
3168 | * read case as the application need not care if the stream is reset | |
3169 | * after a FIN has been successfully processed. | |
3170 | */ | |
3171 | *state = SSL_STREAM_STATE_RESET_LOCAL; | |
3172 | *app_error_code = !is_write | |
3173 | ? qs->stop_sending_aec | |
3174 | : qs->reset_stream_aec; | |
2f018d14 | 3175 | } else if ((!is_write && ossl_quic_stream_recv_is_reset(qs)) |
c3a04ea2 HL |
3176 | || (is_write && qs->peer_stop_sending)) { |
3177 | /* | |
3178 | * Stream has been reset remotely. */ | |
3179 | *state = SSL_STREAM_STATE_RESET_REMOTE; | |
3180 | *app_error_code = !is_write | |
3181 | ? qs->peer_reset_stream_aec | |
3182 | : qs->peer_stop_sending_aec; | |
3183 | } else if (is_write && ossl_quic_sstream_get_final_size(qs->sstream, | |
3184 | &final_size)) { | |
3185 | /* | |
3186 | * Stream has been finished. Stream reset takes precedence over this for | |
3187 | * the write case as peer may not have received all data. | |
3188 | */ | |
3189 | *state = SSL_STREAM_STATE_FINISHED; | |
3190 | } else { | |
3191 | /* Stream still healthy. */ | |
3192 | *state = SSL_STREAM_STATE_OK; | |
3193 | } | |
3194 | } | |
3195 | ||
3196 | static int quic_get_stream_state(SSL *ssl, int is_write) | |
3197 | { | |
3198 | QCTX ctx; | |
3199 | int state; | |
3200 | ||
a954f761 | 3201 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3202 | return SSL_STREAM_STATE_NONE; |
3203 | ||
3204 | quic_classify_stream(ctx.qc, ctx.xso->stream, is_write, &state, NULL); | |
3205 | quic_unlock(ctx.qc); | |
3206 | return state; | |
3207 | } | |
3208 | ||
3209 | int ossl_quic_get_stream_read_state(SSL *ssl) | |
3210 | { | |
3211 | return quic_get_stream_state(ssl, /*is_write=*/0); | |
3212 | } | |
3213 | ||
3214 | /* | |
3215 | * SSL_get_stream_write_state | |
3216 | * -------------------------- | |
3217 | */ | |
3218 | int ossl_quic_get_stream_write_state(SSL *ssl) | |
3219 | { | |
3220 | return quic_get_stream_state(ssl, /*is_write=*/1); | |
3221 | } | |
3222 | ||
3223 | /* | |
3224 | * SSL_get_stream_read_error_code | |
3225 | * ------------------------------ | |
3226 | */ | |
3227 | static int quic_get_stream_error_code(SSL *ssl, int is_write, | |
3228 | uint64_t *app_error_code) | |
3229 | { | |
3230 | QCTX ctx; | |
3231 | int state; | |
3232 | ||
a954f761 | 3233 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3234 | return -1; |
3235 | ||
3236 | quic_classify_stream(ctx.qc, ctx.xso->stream, /*is_write=*/0, | |
3237 | &state, app_error_code); | |
3238 | ||
3239 | quic_unlock(ctx.qc); | |
3240 | switch (state) { | |
3241 | case SSL_STREAM_STATE_FINISHED: | |
3242 | return 0; | |
3243 | case SSL_STREAM_STATE_RESET_LOCAL: | |
3244 | case SSL_STREAM_STATE_RESET_REMOTE: | |
3245 | return 1; | |
3246 | default: | |
3247 | return -1; | |
3248 | } | |
3249 | } | |
3250 | ||
3251 | int ossl_quic_get_stream_read_error_code(SSL *ssl, uint64_t *app_error_code) | |
3252 | { | |
3253 | return quic_get_stream_error_code(ssl, /*is_write=*/0, app_error_code); | |
3254 | } | |
3255 | ||
3256 | /* | |
3257 | * SSL_get_stream_write_error_code | |
3258 | * ------------------------------- | |
3259 | */ | |
3260 | int ossl_quic_get_stream_write_error_code(SSL *ssl, uint64_t *app_error_code) | |
3261 | { | |
3262 | return quic_get_stream_error_code(ssl, /*is_write=*/1, app_error_code); | |
3263 | } | |
3264 | ||
3415677e HL |
3265 | /* |
3266 | * Write buffer size mutation | |
3267 | * -------------------------- | |
3268 | */ | |
3269 | int ossl_quic_set_write_buffer_size(SSL *ssl, size_t size) | |
3270 | { | |
3271 | int ret = 0; | |
3272 | QCTX ctx; | |
3273 | ||
a954f761 | 3274 | if (!expect_quic_with_stream_lock(ssl, /*remote_init=*/-1, /*io=*/0, &ctx)) |
3415677e HL |
3275 | return 0; |
3276 | ||
96014840 | 3277 | if (!ossl_quic_stream_has_send(ctx.xso->stream)) { |
3415677e | 3278 | /* Called on a unidirectional receive-only stream - error. */ |
a954f761 | 3279 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED, NULL); |
3415677e | 3280 | goto out; |
96014840 | 3281 | } |
3415677e HL |
3282 | |
3283 | if (!ossl_quic_stream_has_send_buffer(ctx.xso->stream)) { | |
3284 | /* | |
3285 | * If the stream has a send part but we have disposed of it because we | |
3286 | * no longer need it, this is a no-op. | |
3287 | */ | |
3288 | ret = 1; | |
3289 | goto out; | |
3290 | } | |
3291 | ||
96014840 | 3292 | if (!ossl_quic_sstream_set_buffer_size(ctx.xso->stream->sstream, size)) { |
a954f761 | 3293 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_INTERNAL_ERROR, NULL); |
3415677e | 3294 | goto out; |
96014840 | 3295 | } |
3415677e HL |
3296 | |
3297 | ret = 1; | |
3298 | ||
3299 | out: | |
3300 | quic_unlock(ctx.qc); | |
3301 | return ret; | |
3302 | } | |
3303 | ||
c3a04ea2 HL |
3304 | /* |
3305 | * SSL_get_conn_close_info | |
3306 | * ----------------------- | |
3307 | */ | |
3308 | int ossl_quic_get_conn_close_info(SSL *ssl, | |
3309 | SSL_CONN_CLOSE_INFO *info, | |
3310 | size_t info_len) | |
3311 | { | |
3312 | QCTX ctx; | |
3313 | const QUIC_TERMINATE_CAUSE *tc; | |
3314 | ||
a954f761 | 3315 | if (!expect_quic_conn_only(ssl, /*io=*/0, &ctx)) |
c3a04ea2 HL |
3316 | return -1; |
3317 | ||
3318 | tc = ossl_quic_channel_get_terminate_cause(ctx.qc->ch); | |
3319 | if (tc == NULL) | |
3320 | return 0; | |
3321 | ||
3322 | info->error_code = tc->error_code; | |
40c8c756 HL |
3323 | info->reason = tc->reason; |
3324 | info->reason_len = tc->reason_len; | |
c3a04ea2 HL |
3325 | info->is_local = !tc->remote; |
3326 | info->is_transport = !tc->app; | |
3327 | return 1; | |
3328 | } | |
3329 | ||
2525109f HL |
3330 | /* |
3331 | * SSL_key_update | |
3332 | * -------------- | |
3333 | */ | |
3334 | int ossl_quic_key_update(SSL *ssl, int update_type) | |
3335 | { | |
3336 | QCTX ctx; | |
3337 | ||
a954f761 | 3338 | if (!expect_quic_conn_only(ssl, /*io=*/0, &ctx)) |
2525109f HL |
3339 | return 0; |
3340 | ||
3341 | switch (update_type) { | |
3342 | case SSL_KEY_UPDATE_NOT_REQUESTED: | |
3343 | /* | |
3344 | * QUIC signals peer key update implicily by triggering a local | |
3345 | * spontaneous TXKU. Silently upgrade this to SSL_KEY_UPDATE_REQUESTED. | |
3346 | */ | |
3347 | case SSL_KEY_UPDATE_REQUESTED: | |
3348 | break; | |
3349 | ||
3350 | default: | |
a954f761 | 3351 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, ERR_R_PASSED_INVALID_ARGUMENT, NULL); |
2525109f HL |
3352 | return 0; |
3353 | } | |
3354 | ||
3355 | quic_lock(ctx.qc); | |
3356 | ||
3357 | /* Attempt to perform a TXKU. */ | |
3358 | if (!ossl_quic_channel_trigger_txku(ctx.qc->ch)) { | |
a954f761 | 3359 | QUIC_RAISE_NON_NORMAL_ERROR(&ctx, SSL_R_TOO_MANY_KEY_UPDATES, NULL); |
2525109f HL |
3360 | quic_unlock(ctx.qc); |
3361 | return 0; | |
3362 | } | |
3363 | ||
3364 | quic_unlock(ctx.qc); | |
3365 | return 1; | |
3366 | } | |
3367 | ||
3368 | /* | |
3369 | * SSL_get_key_update_type | |
3370 | * ----------------------- | |
3371 | */ | |
3372 | int ossl_quic_get_key_update_type(const SSL *s) | |
3373 | { | |
3374 | /* | |
3375 | * We always handle key updates immediately so a key update is never | |
3376 | * pending. | |
3377 | */ | |
3378 | return SSL_KEY_UPDATE_NONE; | |
3379 | } | |
3380 | ||
22d53c88 HL |
3381 | /* |
3382 | * QUIC Front-End I/O API: SSL_CTX Management | |
3383 | * ========================================== | |
3384 | */ | |
3385 | ||
3386 | long ossl_quic_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
3387 | { | |
3388 | switch (cmd) { | |
3389 | default: | |
8a1a6d6d | 3390 | return ssl3_ctx_ctrl(ctx, cmd, larg, parg); |
22d53c88 HL |
3391 | } |
3392 | } | |
3393 | ||
3394 | long ossl_quic_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
3395 | { | |
63dfde87 MC |
3396 | QCTX ctx; |
3397 | ||
a954f761 | 3398 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
63dfde87 MC |
3399 | return 0; |
3400 | ||
3401 | switch (cmd) { | |
3402 | case SSL_CTRL_SET_MSG_CALLBACK: | |
5cf99b40 MC |
3403 | ossl_quic_channel_set_msg_callback(ctx.qc->ch, (ossl_msg_cb)fp, |
3404 | &ctx.qc->ssl); | |
63dfde87 MC |
3405 | /* This callback also needs to be set on the internal SSL object */ |
3406 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp);; | |
3407 | ||
3408 | default: | |
3409 | /* Probably a TLS related ctrl. Defer to our internal SSL object */ | |
3410 | return ssl3_callback_ctrl(ctx.qc->tls, cmd, fp); | |
3411 | } | |
22d53c88 HL |
3412 | } |
3413 | ||
3414 | long ossl_quic_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
3415 | { | |
8a1a6d6d | 3416 | return ssl3_ctx_callback_ctrl(ctx, cmd, fp); |
22d53c88 HL |
3417 | } |
3418 | ||
3419 | int ossl_quic_renegotiate_check(SSL *ssl, int initok) | |
3420 | { | |
3421 | /* We never do renegotiation. */ | |
3422 | return 0; | |
3423 | } | |
3424 | ||
3425 | /* | |
d518854c MC |
3426 | * These functions define the TLSv1.2 (and below) ciphers that are supported by |
3427 | * the SSL_METHOD. Since QUIC only supports TLSv1.3 we don't support any. | |
22d53c88 | 3428 | */ |
22d53c88 HL |
3429 | |
3430 | int ossl_quic_num_ciphers(void) | |
3431 | { | |
d518854c | 3432 | return 0; |
22d53c88 HL |
3433 | } |
3434 | ||
3435 | const SSL_CIPHER *ossl_quic_get_cipher(unsigned int u) | |
3436 | { | |
d518854c | 3437 | return NULL; |
d5ab48a1 | 3438 | } |
16f3b542 HL |
3439 | |
3440 | /* | |
3441 | * Internal Testing APIs | |
3442 | * ===================== | |
3443 | */ | |
3444 | ||
3445 | QUIC_CHANNEL *ossl_quic_conn_get_channel(SSL *s) | |
3446 | { | |
3447 | QCTX ctx; | |
3448 | ||
a954f761 | 3449 | if (!expect_quic_conn_only(s, /*io=*/0, &ctx)) |
16f3b542 HL |
3450 | return NULL; |
3451 | ||
3452 | return ctx.qc->ch; | |
3453 | } |