2 * Copyright (c) 2021 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <sys/socket.h>
17 #include <sys/syscall.h>
19 #include <openssl/rand.h>
21 #include <vnet/session/application.h>
22 #include <vnet/session/transport.h>
23 #include <vnet/session/session.h>
24 #include <vlib/unix/plugin.h>
25 #include <vpp/app/version.h>
27 #include <vppinfra/lock.h>
29 #include <quic/quic.h>
30 #include <quic/certs.h>
31 #include <quic/error.h>
33 #include <quicly/constants.h>
34 #include <quicly/defaults.h>
37 #include <quic/quic_crypto.h>
39 extern quicly_crypto_engine_t quic_crypto_engine;
41 static char *quic_error_strings[] = {
42 #define quic_error(n,s) s,
43 #include <quic/quic_error.def>
47 #define DEFAULT_MAX_PACKETS_PER_KEY 16777216
49 quic_main_t quic_main;
50 static void quic_update_timer (quic_ctx_t * ctx);
51 static void quic_check_quic_session_connected (quic_ctx_t * ctx);
52 static int quic_reset_connection (u64 udp_session_handle,
53 quic_rx_packet_ctx_t * pctx);
54 static void quic_proto_on_close (u32 ctx_index, u32 thread_index);
56 static quicly_stream_open_t on_stream_open;
57 static quicly_closed_by_remote_t on_closed_by_remote;
58 static quicly_now_t quicly_vpp_now_cb;
63 quic_crypto_context_make_key_from_ctx (clib_bihash_kv_24_8_t * kv,
66 application_t *app = application_get (ctx->parent_app_id);
67 kv->key[0] = ((u64) ctx->ckpair_index) << 32 | (u64) ctx->crypto_engine;
68 kv->key[1] = app->sm_properties.rx_fifo_size - 1;
69 kv->key[2] = app->sm_properties.tx_fifo_size - 1;
73 quic_crypto_context_make_key_from_crctx (clib_bihash_kv_24_8_t * kv,
74 crypto_context_t * crctx)
76 quic_crypto_context_data_t *data =
77 (quic_crypto_context_data_t *) crctx->data;
78 kv->key[0] = ((u64) crctx->ckpair_index) << 32 | (u64) crctx->crypto_engine;
79 kv->key[1] = data->quicly_ctx.transport_params.max_stream_data.bidi_local;
80 kv->key[2] = data->quicly_ctx.transport_params.max_stream_data.bidi_remote;
84 quic_crypto_context_free_if_needed (crypto_context_t * crctx, u8 thread_index)
86 quic_main_t *qm = &quic_main;
87 clib_bihash_kv_24_8_t kv;
88 if (crctx->n_subscribers)
90 quic_crypto_context_make_key_from_crctx (&kv, crctx);
91 clib_bihash_add_del_24_8 (&qm->wrk_ctx[thread_index].crypto_context_hash,
92 &kv, 0 /* is_add */ );
93 clib_mem_free (crctx->data);
94 pool_put (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
98 quic_app_cert_key_pair_delete_callback (app_cert_key_pair_t * ckpair)
100 quic_main_t *qm = &quic_main;
101 crypto_context_t *crctx;
102 clib_bihash_kv_24_8_t kv;
103 vlib_thread_main_t *vtm = vlib_get_thread_main ();
104 int num_threads = 1 /* main thread */ + vtm->n_threads;
107 for (i = 0; i < num_threads; i++)
109 pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool) {
110 if (crctx->ckpair_index == ckpair->cert_key_index)
112 quic_crypto_context_make_key_from_crctx (&kv, crctx);
113 clib_bihash_add_del_24_8 (&qm->wrk_ctx[i].crypto_context_hash, &kv, 0 /* is_add */ );
120 static crypto_context_t *
121 quic_crypto_context_alloc (u8 thread_index)
123 quic_main_t *qm = &quic_main;
124 crypto_context_t *crctx;
127 pool_get (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
128 clib_memset (crctx, 0, sizeof (*crctx));
129 idx = (crctx - qm->wrk_ctx[thread_index].crypto_ctx_pool);
130 crctx->ctx_index = ((u32) thread_index) << 24 | idx;
135 static crypto_context_t *
136 quic_crypto_context_get (u32 cr_index, u32 thread_index)
138 quic_main_t *qm = &quic_main;
139 ASSERT (cr_index >> 24 == thread_index);
140 return pool_elt_at_index (qm->wrk_ctx[thread_index].crypto_ctx_pool,
141 cr_index & 0x00ffffff);
144 static clib_error_t *
145 quic_list_crypto_context_command_fn (vlib_main_t * vm,
146 unformat_input_t * input,
147 vlib_cli_command_t * cmd)
149 quic_main_t *qm = &quic_main;
150 crypto_context_t *crctx;
151 vlib_thread_main_t *vtm = vlib_get_thread_main ();
152 int i, num_threads = 1 /* main thread */ + vtm->n_threads;
153 for (i = 0; i < num_threads; i++)
155 pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool) {
156 vlib_cli_output (vm, "[%d][Q]%U", i, format_crypto_context, crctx);
162 static clib_error_t *
163 quic_set_max_packets_per_key_fn (vlib_main_t * vm,
164 unformat_input_t * input,
165 vlib_cli_command_t * cmd)
167 quic_main_t *qm = &quic_main;
168 unformat_input_t _line_input, *line_input = &_line_input;
171 if (!unformat_user (input, unformat_line_input, line_input))
174 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
176 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
178 qm->max_packets_per_key = tmp;
181 return clib_error_return (0, "unknown input '%U'",
182 format_unformat_error, line_input);
188 static clib_error_t *
189 quic_set_cc_fn (vlib_main_t *vm, unformat_input_t *input,
190 vlib_cli_command_t *cmd)
192 unformat_input_t _line_input, *line_input = &_line_input;
193 quic_main_t *qm = &quic_main;
196 if (!unformat_user (input, unformat_line_input, line_input))
199 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
201 if (unformat (line_input, "reno"))
202 qm->default_quic_cc = QUIC_CC_RENO;
203 else if (unformat (line_input, "cubic"))
204 qm->default_quic_cc = QUIC_CC_CUBIC;
207 e = clib_error_return (0, "unknown input '%U'",
208 format_unformat_error, line_input);
213 unformat_free (line_input);
218 quic_release_crypto_context (u32 crypto_context_index, u8 thread_index)
220 crypto_context_t *crctx;
221 crctx = quic_crypto_context_get (crypto_context_index, thread_index);
222 crctx->n_subscribers--;
223 quic_crypto_context_free_if_needed (crctx, thread_index);
227 quic_init_crypto_context (crypto_context_t * crctx, quic_ctx_t * ctx)
229 quic_main_t *qm = &quic_main;
230 quicly_context_t *quicly_ctx;
231 ptls_iovec_t key_vec;
232 app_cert_key_pair_t *ckpair;
234 quic_crypto_context_data_t *data;
235 ptls_context_t *ptls_ctx;
237 QUIC_DBG (2, "Init quic crctx %d thread %d", crctx->ctx_index,
238 ctx->c_thread_index);
240 data = clib_mem_alloc (sizeof (*data));
241 /* picotls depends on data being zeroed */
242 clib_memset (data, 0, sizeof (*data));
243 crctx->data = (void *) data;
244 quicly_ctx = &data->quicly_ctx;
245 ptls_ctx = &data->ptls_ctx;
247 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
248 ptls_ctx->get_time = &ptls_get_time;
249 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
250 ptls_ctx->cipher_suites = qm->quic_ciphers[ctx->crypto_engine];
251 ptls_ctx->certificates.list = NULL;
252 ptls_ctx->certificates.count = 0;
253 ptls_ctx->esni = NULL;
254 ptls_ctx->on_client_hello = NULL;
255 ptls_ctx->emit_certificate = NULL;
256 ptls_ctx->sign_certificate = NULL;
257 ptls_ctx->verify_certificate = NULL;
258 ptls_ctx->ticket_lifetime = 86400;
259 ptls_ctx->max_early_data_size = 8192;
260 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
261 ptls_ctx->require_dhe_on_psk = 1;
262 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
263 clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
265 quicly_ctx->max_packets_per_key = qm->max_packets_per_key;
266 quicly_ctx->tls = ptls_ctx;
267 quicly_ctx->stream_open = &on_stream_open;
268 quicly_ctx->closed_by_remote = &on_closed_by_remote;
269 quicly_ctx->now = &quicly_vpp_now_cb;
270 quicly_amend_ptls_context (quicly_ctx->tls);
272 if (qm->vnet_crypto_enabled &&
273 qm->default_crypto_engine == CRYPTO_ENGINE_VPP)
274 quicly_ctx->crypto_engine = &quic_crypto_engine;
276 quicly_ctx->crypto_engine = &quicly_default_crypto_engine;
278 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
279 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
280 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
281 quicly_ctx->transport_params.max_idle_timeout = qm->connection_timeout;
283 if (qm->default_quic_cc == QUIC_CC_CUBIC)
284 quicly_ctx->init_cc = &quicly_cc_cubic_init;
285 else if (qm->default_quic_cc == QUIC_CC_RENO)
286 quicly_ctx->init_cc = &quicly_cc_reno_init;
288 app = application_get (ctx->parent_app_id);
289 quicly_ctx->transport_params.max_stream_data.bidi_local =
290 app->sm_properties.rx_fifo_size - 1;
291 quicly_ctx->transport_params.max_stream_data.bidi_remote =
292 app->sm_properties.tx_fifo_size - 1;
293 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
295 quicly_ctx->transport_params.max_udp_payload_size = QUIC_MAX_PACKET_SIZE;
296 if (!app->quic_iv_set)
298 ptls_openssl_random_bytes (app->quic_iv, QUIC_IV_LEN - 1);
299 app->quic_iv[QUIC_IV_LEN - 1] = 0;
300 app->quic_iv_set = 1;
303 clib_memcpy (data->cid_key, app->quic_iv, QUIC_IV_LEN);
304 key_vec = ptls_iovec_init (data->cid_key, QUIC_IV_LEN);
305 quicly_ctx->cid_encryptor =
306 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
307 &ptls_openssl_aes128ecb,
308 &ptls_openssl_sha256, key_vec);
310 ckpair = app_cert_key_pair_get_if_valid (crctx->ckpair_index);
311 if (!ckpair || !ckpair->key || !ckpair->cert)
313 QUIC_DBG (1, "Wrong ckpair id %d\n", crctx->ckpair_index);
316 if (load_bio_private_key (quicly_ctx->tls, (char *) ckpair->key))
318 QUIC_DBG (1, "failed to read private key from app configuration\n");
321 if (load_bio_certificate_chain (quicly_ctx->tls, (char *) ckpair->cert))
323 QUIC_DBG (1, "failed to load certificate\n");
331 quic_acquire_crypto_context (quic_ctx_t * ctx)
333 quic_main_t *qm = &quic_main;
334 crypto_context_t *crctx;
335 clib_bihash_kv_24_8_t kv;
337 if (ctx->crypto_engine == CRYPTO_ENGINE_NONE)
339 QUIC_DBG (2, "No crypto engine specified, using %d",
340 qm->default_crypto_engine);
341 ctx->crypto_engine = qm->default_crypto_engine;
343 if (!clib_bitmap_get (qm->available_crypto_engines, ctx->crypto_engine))
345 QUIC_DBG (1, "Quic does not support crypto engine %d",
347 return SESSION_E_NOCRYPTOENG;
350 /* Check for exisiting crypto ctx */
351 quic_crypto_context_make_key_from_ctx (&kv, ctx);
352 if (clib_bihash_search_24_8
353 (&qm->wrk_ctx[ctx->c_thread_index].crypto_context_hash, &kv, &kv) == 0)
355 crctx = quic_crypto_context_get (kv.value, ctx->c_thread_index);
356 QUIC_DBG (2, "Found exisiting crypto context %d", kv.value);
357 ctx->crypto_context_index = kv.value;
358 crctx->n_subscribers++;
362 crctx = quic_crypto_context_alloc (ctx->c_thread_index);
363 ctx->crypto_context_index = crctx->ctx_index;
364 kv.value = crctx->ctx_index;
365 crctx->crypto_engine = ctx->crypto_engine;
366 crctx->ckpair_index = ctx->ckpair_index;
367 if (quic_init_crypto_context (crctx, ctx))
369 if (vnet_app_add_cert_key_interest (ctx->ckpair_index, qm->app_index))
371 crctx->n_subscribers++;
372 clib_bihash_add_del_24_8 (&qm->
373 wrk_ctx[ctx->c_thread_index].crypto_context_hash,
374 &kv, 1 /* is_add */ );
378 quic_crypto_context_free_if_needed (crctx, ctx->c_thread_index);
379 return SESSION_E_NOCRYPTOCKP;
382 /* Helper functions */
385 quic_ctx_alloc (u32 thread_index)
387 quic_main_t *qm = &quic_main;
390 pool_get_aligned_safe (qm->ctx_pool[thread_index], ctx,
391 CLIB_CACHE_LINE_BYTES);
393 clib_memset (ctx, 0, sizeof (quic_ctx_t));
394 ctx->c_thread_index = thread_index;
395 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
396 QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
397 ctx - qm->ctx_pool[thread_index], thread_index);
398 return ctx - qm->ctx_pool[thread_index];
402 quic_ctx_free (quic_ctx_t * ctx)
404 QUIC_DBG (2, "Free ctx %u %x", ctx->c_thread_index, ctx->c_c_index);
405 u32 thread_index = ctx->c_thread_index;
406 QUIC_ASSERT (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID);
408 clib_memset (ctx, 0xfb, sizeof (*ctx));
409 pool_put (quic_main.ctx_pool[thread_index], ctx);
413 quic_ctx_get (u32 ctx_index, u32 thread_index)
415 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
419 quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
421 if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
423 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
427 quic_get_conn_ctx (quicly_conn_t * conn)
430 conn_data = (u64) * quicly_get_data (conn);
431 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
435 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
437 *quicly_get_data (conn) =
438 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
442 quic_ctx_is_stream (quic_ctx_t * ctx)
444 return (ctx->flags & QUIC_F_IS_STREAM);
448 quic_ctx_is_listener (quic_ctx_t * ctx)
450 return (ctx->flags & QUIC_F_IS_LISTENER);
454 quic_ctx_is_conn (quic_ctx_t * ctx)
456 return !(quic_ctx_is_listener (ctx) || quic_ctx_is_stream (ctx));
459 static inline session_t *
460 get_stream_session_and_ctx_from_stream (quicly_stream_t * stream,
463 quic_stream_data_t *stream_data;
465 stream_data = (quic_stream_data_t *) stream->data;
466 *ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
467 return session_get ((*ctx)->c_s_index, stream_data->thread_index);
471 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
472 const quicly_cid_plaintext_t * id)
474 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
475 kv->key[1] = id->node_id;
479 quic_sendable_packet_count (session_t * udp_session)
482 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
483 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
484 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
487 static quicly_context_t *
488 quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
490 crypto_context_t *crctx =
491 quic_crypto_context_get (ctx->crypto_context_index, ctx->c_thread_index);
492 quic_crypto_context_data_t *data =
493 (quic_crypto_context_data_t *) crctx->data;
494 return &data->quicly_ctx;
497 static quicly_context_t *
498 quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
500 session_t *udp_session = session_get_from_handle (udp_session_handle);
502 quic_ctx_get (udp_session->opaque, udp_session->thread_index);
503 return quic_get_quicly_ctx_from_ctx (ctx);
507 quic_set_udp_tx_evt (session_t * udp_session)
510 if (svm_fifo_set_event (udp_session->tx_fifo))
511 rv = session_send_io_evt_to_thread (udp_session->tx_fifo,
513 if (PREDICT_FALSE (rv))
514 clib_warning ("Event enqueue errored %d", rv);
518 quic_stop_ctx_timer (quic_ctx_t * ctx)
520 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
521 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
523 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
524 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
525 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
526 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
529 /* QUIC protocol actions */
532 quic_ack_rx_data (session_t * stream_session)
537 quicly_stream_t *stream;
538 quic_stream_data_t *stream_data;
540 sctx = quic_ctx_get (stream_session->connection_index,
541 stream_session->thread_index);
542 QUIC_ASSERT (quic_ctx_is_stream (sctx));
543 stream = sctx->stream;
544 stream_data = (quic_stream_data_t *) stream->data;
546 f = stream_session->rx_fifo;
547 max_deq = svm_fifo_max_dequeue (f);
549 QUIC_ASSERT (stream_data->app_rx_data_len >= max_deq);
550 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
551 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
552 stream_data->app_rx_data_len = max_deq;
556 quic_disconnect_transport (quic_ctx_t * ctx)
558 QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
559 vnet_disconnect_args_t a = {
560 .handle = ctx->udp_session_handle,
561 .app_index = quic_main.app_index,
564 if (vnet_disconnect_session (&a))
565 clib_warning ("UDP session 0x%lx disconnect errored",
566 ctx->udp_session_handle);
570 quic_connection_delete (quic_ctx_t * ctx)
572 clib_bihash_kv_16_8_t kv;
575 if (ctx->conn == NULL)
577 QUIC_DBG (2, "Skipping redundant delete of connection %u",
581 QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
583 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
584 quic_stop_ctx_timer (ctx);
586 /* Delete the connection from the connection map */
589 quic_make_connection_key (&kv, quicly_get_master_id (conn));
590 QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
592 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
594 quic_disconnect_transport (ctx);
598 session_transport_delete_notify (&ctx->connection);
602 quic_increment_counter (u8 evt, u8 val)
604 vlib_main_t *vm = vlib_get_main ();
605 vlib_node_increment_counter (vm, quic_input_node.index, evt, val);
609 * Called when quicly return an error
610 * This function interacts tightly with quic_proto_on_close
613 quic_connection_closed (quic_ctx_t * ctx)
615 QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
618 /* TODO if connection is not established, just delete the session? */
619 /* Actually should send connect or accept error */
621 switch (ctx->conn_state)
623 case QUIC_CONN_STATE_READY:
624 /* Error on an opened connection (timeout...)
625 This puts the session in closing state, we should receive a notification
626 when the app has closed its session */
627 session_transport_reset_notify (&ctx->connection);
628 /* This ensures we delete the connection when the app confirms the close */
629 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
631 case QUIC_CONN_STATE_PASSIVE_CLOSING:
632 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
633 /* quic_proto_on_close will eventually be called when the app confirms the close
634 , we delete the connection at that point */
636 case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
637 /* App already confirmed close, we can delete the connection */
638 quic_connection_delete (ctx);
640 case QUIC_CONN_STATE_OPENED:
641 case QUIC_CONN_STATE_HANDSHAKE:
642 case QUIC_CONN_STATE_ACTIVE_CLOSING:
643 quic_connection_delete (ctx);
646 QUIC_DBG (0, "BUG %d", ctx->conn_state);
652 quic_send_datagram (session_t *udp_session, struct iovec *packet,
653 quicly_address_t *dest, quicly_address_t *src)
655 u32 max_enqueue, len;
656 session_dgram_hdr_t hdr;
658 transport_connection_t *tc;
661 len = packet->iov_len;
662 f = udp_session->tx_fifo;
663 tc = session_get_transport (udp_session);
664 max_enqueue = svm_fifo_max_enqueue (f);
665 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
667 QUIC_ERR ("Too much data to send, max_enqueue %u, len %u",
668 max_enqueue, len + SESSION_CONN_HDR_LEN);
669 return QUIC_ERROR_FULL_FIFO;
672 /* Build packet header for fifo */
673 hdr.data_length = len;
675 hdr.is_ip4 = tc->is_ip4;
676 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
677 hdr.lcl_port = tc->lcl_port;
680 /* Read dest address from quicly-provided sockaddr */
683 QUIC_ASSERT (dest->sa.sa_family == AF_INET);
684 struct sockaddr_in *sa4 = (struct sockaddr_in *) &dest->sa;
685 hdr.rmt_port = sa4->sin_port;
686 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
690 QUIC_ASSERT (dest->sa.sa_family == AF_INET6);
691 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &dest->sa;
692 hdr.rmt_port = sa6->sin6_port;
693 clib_memcpy_fast (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
696 svm_fifo_seg_t segs[2] = { { (u8 *) &hdr, sizeof (hdr) },
697 { packet->iov_base, len } };
699 ret = svm_fifo_enqueue_segments (f, segs, 2, 0 /* allow partial */);
700 if (PREDICT_FALSE (ret < 0))
702 QUIC_ERR ("Not enough space to enqueue dgram");
703 return QUIC_ERROR_FULL_FIFO;
706 quic_increment_counter (QUIC_ERROR_TX_PACKETS, 1);
712 quic_send_packets (quic_ctx_t * ctx)
714 struct iovec packets[QUIC_SEND_PACKET_VEC_SIZE];
716 buf[QUIC_SEND_PACKET_VEC_SIZE * quic_get_quicly_ctx_from_ctx (ctx)
717 ->transport_params.max_udp_payload_size];
718 session_t *udp_session;
720 size_t num_packets, i, max_packets;
721 quicly_address_t dest, src;
725 /* We have sctx, get qctx */
726 if (quic_ctx_is_stream (ctx))
727 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
729 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
731 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
741 /* TODO : quicly can assert it can send min_packets up to 2 */
742 max_packets = quic_sendable_packet_count (udp_session);
746 num_packets = max_packets;
747 if ((err = quicly_send (conn, &dest, &src, packets, &num_packets, buf,
751 for (i = 0; i != num_packets; ++i)
755 quic_send_datagram (udp_session, &packets[i], &dest, &src)))
759 n_sent += num_packets;
761 while (num_packets > 0 && num_packets == max_packets);
763 quic_set_udp_tx_evt (udp_session);
765 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
766 svm_fifo_max_dequeue (udp_session->rx_fifo));
767 quic_update_timer (ctx);
771 if (err && err != QUICLY_ERROR_PACKET_IGNORED
772 && err != QUICLY_ERROR_FREE_CONNECTION)
773 clib_warning ("Quic error '%U'.", quic_format_err, err);
774 quic_connection_closed (ctx);
778 /* Quicly callbacks */
781 quic_on_stream_destroy (quicly_stream_t * stream, int err)
783 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
784 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
785 stream_data->thread_index);
786 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
787 session_handle (stream_session), quic_format_err, err);
789 session_transport_closing_notify (&sctx->connection);
790 session_transport_delete_notify (&sctx->connection);
792 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
793 quic_ctx_free (sctx);
794 clib_mem_free (stream->data);
798 quic_on_stop_sending (quicly_stream_t * stream, int err)
801 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
802 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
803 stream_data->thread_index);
804 session_t *stream_session = session_get (sctx->c_s_index,
805 sctx->c_thread_index);
806 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
807 session_handle (stream_session), quic_format_err, err);
809 /* TODO : handle STOP_SENDING */
813 quic_on_receive_reset (quicly_stream_t * stream, int err)
815 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
816 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
817 stream_data->thread_index);
819 session_t *stream_session = session_get (sctx->c_s_index,
820 sctx->c_thread_index);
821 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
822 session_handle (stream_session), quic_format_err, err);
824 session_transport_closing_notify (&sctx->connection);
828 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
831 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
834 session_t *stream_session;
835 app_worker_t *app_wrk;
837 quic_stream_data_t *stream_data;
843 stream_data = (quic_stream_data_t *) stream->data;
844 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
845 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
846 f = stream_session->rx_fifo;
848 max_enq = svm_fifo_max_enqueue_prod (f);
849 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
850 /* Handle duplicate packet/chunk from quicly */
851 if (off < stream_data->app_rx_data_len)
853 QUIC_DBG (3, "Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
854 "DUPLICATE PACKET (max_enq %u, len %u, "
855 "app_rx_data_len %u, off %u, ToBeNQ %u)",
856 stream_session->session_index,
857 stream_session->app_wrk_index,
858 stream_session->thread_index, f,
859 max_enq, len, stream_data->app_rx_data_len, off,
860 off - stream_data->app_rx_data_len + len);
863 if (PREDICT_FALSE ((off - stream_data->app_rx_data_len + len) > max_enq))
865 QUIC_ERR ("Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
866 "RX FIFO IS FULL (max_enq %u, len %u, "
867 "app_rx_data_len %u, off %u, ToBeNQ %u)",
868 stream_session->session_index,
869 stream_session->app_wrk_index,
870 stream_session->thread_index, f,
871 max_enq, len, stream_data->app_rx_data_len, off,
872 off - stream_data->app_rx_data_len + len);
873 return; /* This shouldn't happen */
875 if (off == stream_data->app_rx_data_len)
877 /* Streams live on the same thread so (f, stream_data) should stay consistent */
878 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
879 if (PREDICT_FALSE (rlen < 0))
887 QUIC_DBG (3, "Session [idx %u, app_wrk %u, ti %u, rx-fifo 0x%llx]: "
888 "Enqueuing %u (rlen %u) at off %u in %u space, ",
889 stream_session->session_index,
890 stream_session->app_wrk_index,
891 stream_session->thread_index, f, len, rlen, off, max_enq);
892 stream_data->app_rx_data_len += rlen;
893 QUIC_ASSERT (rlen >= len);
894 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
895 if (PREDICT_TRUE (app_wrk != 0))
897 app_worker_rx_notify (app_wrk, stream_session);
899 quic_ack_rx_data (stream_session);
903 rlen = svm_fifo_enqueue_with_offset (f,
904 off - stream_data->app_rx_data_len,
906 if (PREDICT_FALSE (rlen < 0))
914 QUIC_ASSERT (rlen == 0);
920 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
922 quic_stream_data_t *stream_data;
923 session_t *stream_session;
928 stream_data = (quic_stream_data_t *) stream->data;
929 stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
930 f = stream_session->tx_fifo;
932 QUIC_ASSERT (stream_data->app_tx_data_len >= delta);
933 stream_data->app_tx_data_len -= delta;
934 ctx->bytes_written += delta;
935 rv = svm_fifo_dequeue_drop (f, delta);
936 QUIC_ASSERT (rv == delta);
938 rv = quicly_stream_sync_sendbuf (stream, 0);
943 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
944 size_t * len, int *wrote_all)
946 quic_stream_data_t *stream_data;
948 session_t *stream_session;
952 stream_data = (quic_stream_data_t *) stream->data;
953 stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
954 f = stream_session->tx_fifo;
956 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
958 deq_max = svm_fifo_max_dequeue_cons (f);
959 QUIC_ASSERT (off <= deq_max);
960 if (off + *len < deq_max)
967 *len = deq_max - off;
969 QUIC_ASSERT (*len > 0);
971 if (off + *len > stream_data->app_tx_data_len)
972 stream_data->app_tx_data_len = off + *len;
974 svm_fifo_peek (f, off, *len, dst);
977 static const quicly_stream_callbacks_t quic_stream_callbacks = {
978 .on_destroy = quic_on_stream_destroy,
979 .on_send_shift = quic_fifo_egress_shift,
980 .on_send_emit = quic_fifo_egress_emit,
981 .on_send_stop = quic_on_stop_sending,
982 .on_receive = quic_on_receive,
983 .on_receive_reset = quic_on_receive_reset
987 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
989 /* Return code for this function ends either
990 * - in quicly_receive : if not QUICLY_ERROR_PACKET_IGNORED, will close connection
991 * - in quicly_open_stream, returned directly
994 session_t *stream_session, *quic_session;
995 quic_stream_data_t *stream_data;
996 app_worker_t *app_wrk;
997 quic_ctx_t *qctx, *sctx;
1001 QUIC_DBG (2, "on_stream_open called");
1002 stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
1003 stream->callbacks = &quic_stream_callbacks;
1004 /* Notify accept on parent qsession, but only if this is not a locally
1005 * initiated stream */
1006 if (quicly_stream_is_self_initiated (stream))
1009 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
1010 qctx = quic_get_conn_ctx (stream->conn);
1012 /* Might need to signal that the connection is ready if the first thing the
1013 * server does is open a stream */
1014 quic_check_quic_session_connected (qctx);
1015 /* ctx might be invalidated */
1016 qctx = quic_get_conn_ctx (stream->conn);
1018 stream_session = session_alloc (qctx->c_thread_index);
1019 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
1020 session_handle (stream_session), sctx_id);
1021 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
1022 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1023 sctx->parent_app_id = qctx->parent_app_id;
1024 sctx->quic_connection_ctx_id = qctx->c_c_index;
1025 sctx->c_c_index = sctx_id;
1026 sctx->c_s_index = stream_session->session_index;
1027 sctx->stream = stream;
1028 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1029 sctx->flags |= QUIC_F_IS_STREAM;
1030 sctx->crypto_context_index = qctx->crypto_context_index;
1031 if (quicly_stream_is_unidirectional (stream->stream_id))
1032 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1034 stream_data = (quic_stream_data_t *) stream->data;
1035 stream_data->ctx_id = sctx_id;
1036 stream_data->thread_index = sctx->c_thread_index;
1037 stream_data->app_rx_data_len = 0;
1038 stream_data->app_tx_data_len = 0;
1040 sctx->c_s_index = stream_session->session_index;
1041 stream_session->session_state = SESSION_STATE_CREATED;
1042 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
1043 stream_session->connection_index = sctx->c_c_index;
1044 stream_session->session_type =
1045 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1046 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
1047 /* Make sure quic session is in listening state */
1048 quic_session->session_state = SESSION_STATE_LISTENING;
1049 stream_session->listener_handle = listen_session_get_handle (quic_session);
1051 app_wrk = app_worker_get (stream_session->app_wrk_index);
1052 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1054 QUIC_ERR ("failed to allocate fifos");
1055 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1056 return 0; /* Frame is still valid */
1058 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1059 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1060 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1061 svm_fifo_init_ooo_lookup (stream_session->rx_fifo, 0 /* ooo enq */);
1062 svm_fifo_init_ooo_lookup (stream_session->tx_fifo, 1 /* ooo deq */);
1064 stream_session->session_state = SESSION_STATE_ACCEPTING;
1065 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
1067 QUIC_ERR ("failed to notify accept worker app");
1068 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
1069 return 0; /* Frame is still valid */
1076 quic_on_closed_by_remote (quicly_closed_by_remote_t *self, quicly_conn_t *conn,
1077 int code, uint64_t frame_type, const char *reason,
1080 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
1082 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1083 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
1084 session_handle (quic_session), quic_format_err, code,
1085 reason_len, reason);
1087 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
1088 session_transport_closing_notify (&ctx->connection);
1091 /* Timer handling */
1094 quic_get_thread_time (u8 thread_index)
1096 return quic_main.wrk_ctx[thread_index].time_now;
1100 quic_get_time (quicly_now_t * self)
1102 u8 thread_index = vlib_get_thread_index ();
1103 return quic_get_thread_time (thread_index);
1107 quic_set_time_now (u32 thread_index)
1109 vlib_main_t *vlib_main = vlib_get_main ();
1110 f64 time = vlib_time_now (vlib_main);
1111 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1112 return quic_main.wrk_ctx[thread_index].time_now;
1115 /* Transport proto callback */
1117 quic_update_time (f64 now, u8 thread_index)
1119 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1121 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1122 quic_set_time_now (thread_index);
1123 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1127 quic_timer_expired (u32 conn_index)
1130 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1131 quic_get_time (NULL));
1132 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1133 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1134 quic_send_packets (ctx);
1138 quic_update_timer (quic_ctx_t * ctx)
1140 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1141 int64_t next_timeout, next_interval;
1142 session_t *quic_session;
1145 /* This timeout is in ms which is the unit of our timer */
1146 next_timeout = quicly_get_first_timeout (ctx->conn);
1147 next_interval = next_timeout - quic_get_time (NULL);
1149 if (next_timeout == 0 || next_interval <= 0)
1151 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1157 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1158 if (svm_fifo_set_event (quic_session->tx_fifo))
1160 rv = session_send_io_evt_to_thread_custom (
1161 quic_session, quic_session->thread_index, SESSION_IO_EVT_TX);
1162 if (PREDICT_FALSE (rv))
1163 QUIC_ERR ("Failed to enqueue builtin_tx %d", rv);
1169 ASSERT (vlib_get_thread_index () == ctx->c_thread_index ||
1170 vlib_get_thread_index () == 0);
1171 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
1173 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1174 next_interval, ctx->c_c_index);
1176 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1178 if (next_timeout == INT64_MAX)
1180 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1183 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
1188 if (next_timeout == INT64_MAX)
1190 quic_stop_ctx_timer (ctx);
1193 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1200 quic_expired_timers_dispatch (u32 * expired_timers)
1204 for (i = 0; i < vec_len (expired_timers); i++)
1206 quic_timer_expired (expired_timers[i]);
1210 /* Transport proto functions */
1212 quic_connect_stream (session_t * quic_session, session_endpoint_cfg_t * sep)
1214 uint64_t quic_session_handle;
1215 session_t *stream_session;
1216 quic_stream_data_t *stream_data;
1217 quicly_stream_t *stream;
1218 quicly_conn_t *conn;
1219 app_worker_t *app_wrk;
1220 quic_ctx_t *qctx, *sctx;
1225 /* Find base session to which the user want to attach a stream */
1226 quic_session_handle = session_handle (quic_session);
1227 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
1229 if (session_type_transport_proto (quic_session->session_type) !=
1230 TRANSPORT_PROTO_QUIC)
1232 QUIC_ERR ("received incompatible session");
1236 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1239 QUIC_ERR ("Invalid app worker :(");
1243 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1244 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1245 qctx = quic_ctx_get (quic_session->connection_index,
1246 quic_session->thread_index);
1247 if (quic_ctx_is_stream (qctx))
1249 QUIC_ERR ("session is a stream");
1250 quic_ctx_free (sctx);
1254 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1255 sctx->parent_app_id = qctx->parent_app_id;
1256 sctx->quic_connection_ctx_id = qctx->c_c_index;
1257 sctx->c_c_index = sctx_index;
1258 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1259 sctx->flags |= QUIC_F_IS_STREAM;
1263 if (!conn || !quicly_connection_is_ready (conn))
1266 is_unidir = sep->transport_flags & TRANSPORT_CFG_F_UNIDIRECTIONAL;
1267 if ((rv = quicly_open_stream (conn, &stream, is_unidir)))
1269 QUIC_DBG (2, "Stream open failed with %d", rv);
1272 quic_increment_counter (QUIC_ERROR_OPENED_STREAM, 1);
1274 sctx->stream = stream;
1275 sctx->crypto_context_index = qctx->crypto_context_index;
1277 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1279 stream_session = session_alloc (qctx->c_thread_index);
1280 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1281 session_handle (stream_session), sctx_index);
1282 stream_session->app_wrk_index = app_wrk->wrk_index;
1283 stream_session->connection_index = sctx_index;
1284 stream_session->listener_handle = quic_session_handle;
1285 stream_session->session_type =
1286 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1288 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1290 sctx->c_s_index = stream_session->session_index;
1291 stream_data = (quic_stream_data_t *) stream->data;
1292 stream_data->ctx_id = sctx->c_c_index;
1293 stream_data->thread_index = sctx->c_thread_index;
1294 stream_data->app_rx_data_len = 0;
1295 stream_data->app_tx_data_len = 0;
1296 stream_session->session_state = SESSION_STATE_READY;
1297 stream_session->opaque = sep->opaque;
1299 /* For now we only reset streams. Cleanup will be triggered by timers */
1300 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1302 QUIC_ERR ("failed to app_worker_init_connected");
1303 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1304 return app_worker_connect_notify (app_wrk, NULL, rv, sep->opaque);
1307 svm_fifo_init_ooo_lookup (stream_session->rx_fifo, 0 /* ooo enq */);
1308 svm_fifo_init_ooo_lookup (stream_session->tx_fifo, 1 /* ooo deq */);
1309 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1310 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1311 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1313 if (app_worker_connect_notify (app_wrk, stream_session, SESSION_E_NONE,
1316 QUIC_ERR ("failed to notify app");
1317 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
1318 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1326 quic_connect_connection (session_endpoint_cfg_t * sep)
1328 vnet_connect_args_t _cargs, *cargs = &_cargs;
1329 transport_endpt_crypto_cfg_t *ccfg;
1330 quic_main_t *qm = &quic_main;
1331 u32 ctx_index, thread_index;
1333 app_worker_t *app_wrk;
1338 return SESSION_E_NOEXTCFG;
1340 /* Use pool on thread 1 if we have workers because of UDP */
1341 thread_index = transport_cl_thread ();
1342 ccfg = &sep->ext_cfg->crypto;
1344 clib_memset (cargs, 0, sizeof (*cargs));
1345 ctx_index = quic_ctx_alloc (thread_index);
1346 ctx = quic_ctx_get (ctx_index, thread_index);
1347 ctx->parent_app_wrk_id = sep->app_wrk_index;
1348 ctx->c_s_index = QUIC_SESSION_INVALID;
1349 ctx->c_c_index = ctx_index;
1350 ctx->udp_is_ip4 = sep->is_ip4;
1351 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1352 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1353 ctx->client_opaque = sep->opaque;
1354 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1355 if (ccfg->hostname[0])
1356 ctx->srv_hostname = format (0, "%s", ccfg->hostname);
1358 /* needed by quic for crypto + determining client / server */
1359 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1360 &sep->ip, sep->is_ip4);
1361 vec_terminate_c_string (ctx->srv_hostname);
1363 clib_memcpy (&cargs->sep_ext, sep, sizeof (session_endpoint_cfg_t));
1364 cargs->sep.transport_proto = TRANSPORT_PROTO_UDP;
1365 cargs->app_index = qm->app_index;
1366 cargs->api_context = ctx_index;
1368 app_wrk = app_worker_get (sep->app_wrk_index);
1369 app = application_get (app_wrk->app_index);
1370 ctx->parent_app_id = app_wrk->app_index;
1371 cargs->sep_ext.ns_index = app->ns_index;
1372 cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1374 ctx->crypto_engine = ccfg->crypto_engine;
1375 ctx->ckpair_index = ccfg->ckpair_index;
1376 if ((error = quic_acquire_crypto_context (ctx)))
1379 if ((error = vnet_connect (cargs)))
1386 quic_connect (transport_endpoint_cfg_t * tep)
1388 QUIC_DBG (2, "Called quic_connect");
1389 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1390 session_t *quic_session;
1391 sep = (session_endpoint_cfg_t *) tep;
1393 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1395 return quic_connect_stream (quic_session, sep);
1397 return quic_connect_connection (sep);
1401 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1404 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1407 session_t *stream_session = session_get (ctx->c_s_index,
1408 ctx->c_thread_index);
1410 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1412 if (quic_ctx_is_stream (ctx))
1414 quicly_stream_t *stream = ctx->stream;
1415 if (!quicly_stream_has_send_side (quicly_is_client (stream->conn),
1418 quicly_sendstate_shutdown (&stream->sendstate, ctx->bytes_written +
1419 svm_fifo_max_dequeue
1420 (stream_session->tx_fifo));
1421 err = quicly_stream_sync_sendbuf (stream, 1);
1424 QUIC_DBG (1, "sendstate_shutdown failed for stream session %lu",
1425 session_handle (stream_session));
1426 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1428 quic_send_packets (ctx);
1432 switch (ctx->conn_state)
1434 case QUIC_CONN_STATE_OPENED:
1435 case QUIC_CONN_STATE_HANDSHAKE:
1436 case QUIC_CONN_STATE_READY:
1437 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1438 quicly_conn_t *conn = ctx->conn;
1439 /* Start connection closing. Keep sending packets until quicly_send
1440 returns QUICLY_ERROR_FREE_CONNECTION */
1442 quic_increment_counter (QUIC_ERROR_CLOSED_CONNECTION, 1);
1443 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1444 /* This also causes all streams to be closed (and the cb called) */
1445 quic_send_packets (ctx);
1447 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1448 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1449 /* send_packets will eventually return an error, we delete the conn at
1452 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1453 quic_connection_delete (ctx);
1455 case QUIC_CONN_STATE_ACTIVE_CLOSING:
1458 QUIC_ERR ("Trying to close conn in state %d", ctx->conn_state);
1464 quic_start_listen (u32 quic_listen_session_index,
1465 transport_endpoint_cfg_t *tep)
1467 vnet_listen_args_t _bargs, *args = &_bargs;
1468 transport_endpt_crypto_cfg_t *ccfg;
1469 quic_main_t *qm = &quic_main;
1470 session_handle_t udp_handle;
1471 session_endpoint_cfg_t *sep;
1472 session_t *udp_listen_session;
1473 app_worker_t *app_wrk;
1477 app_listener_t *app_listener;
1480 sep = (session_endpoint_cfg_t *) tep;
1482 return SESSION_E_NOEXTCFG;
1484 ccfg = &sep->ext_cfg->crypto;
1485 app_wrk = app_worker_get (sep->app_wrk_index);
1486 app = application_get (app_wrk->app_index);
1487 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1489 clib_memset (args, 0, sizeof (*args));
1490 args->app_index = qm->app_index;
1491 args->sep_ext = *sep;
1492 args->sep_ext.ns_index = app->ns_index;
1493 args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP;
1494 args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1495 if ((rv = vnet_listen (args)))
1498 lctx_index = quic_ctx_alloc (0);
1499 udp_handle = args->handle;
1500 app_listener = app_listener_get_w_handle (udp_handle);
1501 udp_listen_session = app_listener_get_session (app_listener);
1502 udp_listen_session->opaque = lctx_index;
1504 lctx = quic_ctx_get (lctx_index, 0);
1505 lctx->flags |= QUIC_F_IS_LISTENER;
1507 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1508 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1509 lctx->c_rmt_port = args->sep.peer.port;
1510 lctx->c_lcl_port = args->sep.port;
1511 lctx->c_is_ip4 = args->sep.is_ip4;
1512 lctx->c_fib_index = args->sep.fib_index;
1513 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1514 lctx->parent_app_wrk_id = sep->app_wrk_index;
1515 lctx->parent_app_id = app_wrk->app_index;
1516 lctx->udp_session_handle = udp_handle;
1517 lctx->c_s_index = quic_listen_session_index;
1518 lctx->crypto_engine = ccfg->crypto_engine;
1519 lctx->ckpair_index = ccfg->ckpair_index;
1520 if ((rv = quic_acquire_crypto_context (lctx)))
1523 QUIC_DBG (2, "Listening UDP session 0x%lx",
1524 session_handle (udp_listen_session));
1525 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1530 quic_stop_listen (u32 lctx_index)
1532 QUIC_DBG (2, "Called quic_stop_listen");
1534 lctx = quic_ctx_get (lctx_index, 0);
1535 QUIC_ASSERT (quic_ctx_is_listener (lctx));
1536 vnet_unlisten_args_t a = {
1537 .handle = lctx->udp_session_handle,
1538 .app_index = quic_main.app_index,
1539 .wrk_map_index = 0 /* default wrk */
1541 if (vnet_unlisten (&a))
1542 clib_warning ("unlisten errored");
1544 quic_release_crypto_context (lctx->crypto_context_index,
1545 0 /* thread_index */ );
1546 quic_ctx_free (lctx);
1550 static transport_connection_t *
1551 quic_connection_get (u32 ctx_index, u32 thread_index)
1554 ctx = quic_ctx_get (ctx_index, thread_index);
1555 return &ctx->connection;
1558 static transport_connection_t *
1559 quic_listener_get (u32 listener_index)
1561 QUIC_DBG (2, "Called quic_listener_get");
1563 ctx = quic_ctx_get (listener_index, 0);
1564 return &ctx->connection;
1568 format_quic_ctx (u8 * s, va_list * args)
1570 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1571 u32 verbose = va_arg (*args, u32);
1576 str = format (str, "[%d:%d][Q] ", ctx->c_thread_index, ctx->c_s_index);
1578 if (quic_ctx_is_listener (ctx))
1579 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1580 else if (quic_ctx_is_stream (ctx))
1581 str = format (str, "Stream %ld conn %d",
1582 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1583 else /* connection */
1584 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1585 ctx->udp_session_handle);
1587 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1588 ctx->parent_app_wrk_id);
1591 s = format (s, "%-" SESSION_CLI_ID_LEN "s%-" SESSION_CLI_STATE_LEN "d",
1592 str, ctx->conn_state);
1594 s = format (s, "%s\n", str);
1600 format_quic_connection (u8 * s, va_list * args)
1602 u32 qc_index = va_arg (*args, u32);
1603 u32 thread_index = va_arg (*args, u32);
1604 u32 verbose = va_arg (*args, u32);
1605 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1606 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1611 format_quic_half_open (u8 * s, va_list * args)
1613 u32 qc_index = va_arg (*args, u32);
1614 u32 thread_index = va_arg (*args, u32);
1615 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1616 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1617 ctx->parent_app_id);
1623 format_quic_listener (u8 * s, va_list * args)
1625 u32 tci = va_arg (*args, u32);
1626 u32 thread_index = va_arg (*args, u32);
1627 u32 verbose = va_arg (*args, u32);
1628 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1629 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1633 /* Session layer callbacks */
1636 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1637 ip46_address_t * addr, u16 port, u8 is_ip4)
1641 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1642 sa4->sin_family = AF_INET;
1643 sa4->sin_port = port;
1644 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1645 *salen = sizeof (struct sockaddr_in);
1649 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1650 sa6->sin6_family = AF_INET6;
1651 sa6->sin6_port = port;
1652 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1653 *salen = sizeof (struct sockaddr_in6);
1658 quic_on_quic_session_connected (quic_ctx_t * ctx)
1660 session_t *quic_session;
1661 app_worker_t *app_wrk;
1662 u32 ctx_id = ctx->c_c_index;
1663 u32 thread_index = ctx->c_thread_index;
1666 quic_session = session_alloc (thread_index);
1668 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1669 ctx->c_s_index = quic_session->session_index;
1670 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1671 quic_session->connection_index = ctx->c_c_index;
1672 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1673 quic_session->session_type =
1674 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1676 /* If quic session connected fails, immediatly close connection */
1677 app_wrk = app_worker_get (ctx->parent_app_wrk_id);
1678 if ((rv = app_worker_init_connected (app_wrk, quic_session)))
1680 QUIC_ERR ("failed to app_worker_init_connected");
1681 quic_proto_on_close (ctx_id, thread_index);
1682 app_worker_connect_notify (app_wrk, NULL, rv, ctx->client_opaque);
1686 svm_fifo_init_ooo_lookup (quic_session->rx_fifo, 0 /* ooo enq */);
1687 svm_fifo_init_ooo_lookup (quic_session->tx_fifo, 1 /* ooo deq */);
1689 quic_session->session_state = SESSION_STATE_CONNECTING;
1690 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1691 SESSION_E_NONE, ctx->client_opaque)))
1693 QUIC_ERR ("failed to notify app %d", rv);
1694 quic_proto_on_close (ctx_id, thread_index);
1700 quic_check_quic_session_connected (quic_ctx_t * ctx)
1702 /* Called when we need to trigger quic session connected
1703 * we may call this function on the server side / at
1706 /* Conn may be set to null if the connection is terminated */
1707 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1709 if (!quicly_connection_is_ready (ctx->conn))
1711 ctx->conn_state = QUIC_CONN_STATE_READY;
1712 if (!quicly_is_client (ctx->conn))
1714 quic_on_quic_session_connected (ctx);
1718 quic_update_conn_ctx (quicly_conn_t * conn, quicly_context_t * quicly_context)
1720 /* we need to update the quicly_conn on migrate
1721 * as it contains a pointer to the crypto context */
1722 ptls_context_t **tls;
1723 quicly_context_t **_quicly_context;
1724 _quicly_context = (quicly_context_t **) conn;
1725 *_quicly_context = quicly_context;
1726 tls = (ptls_context_t **) quicly_get_tls (conn);
1727 *tls = quicly_context->tls;
1731 quic_receive_connection (void *arg)
1733 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1734 quic_ctx_t *temp_ctx, *new_ctx;
1735 clib_bihash_kv_16_8_t kv;
1736 quicly_conn_t *conn;
1737 quicly_context_t *quicly_context;
1738 session_t *udp_session;
1741 new_ctx_id = quic_ctx_alloc (thread_index);
1742 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1744 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1747 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1748 clib_mem_free (temp_ctx);
1750 new_ctx->c_thread_index = thread_index;
1751 new_ctx->c_c_index = new_ctx_id;
1752 quic_acquire_crypto_context (new_ctx);
1754 conn = new_ctx->conn;
1755 quicly_context = quic_get_quicly_ctx_from_ctx (new_ctx);
1756 quic_update_conn_ctx (conn, quicly_context);
1758 quic_store_conn_ctx (conn, new_ctx);
1759 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1760 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1761 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1762 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1763 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1764 quic_update_timer (new_ctx);
1766 /* Trigger write on this connection if necessary */
1767 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1768 udp_session->opaque = new_ctx_id;
1769 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1770 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1771 quic_set_udp_tx_evt (udp_session);
1775 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1777 quic_ctx_t *ctx, *temp_ctx;
1778 u32 thread_index = vlib_get_thread_index ();
1780 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1782 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1783 QUIC_ASSERT (temp_ctx != NULL);
1784 ctx = quic_ctx_get (ctx_index, thread_index);
1786 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1788 quic_stop_ctx_timer (ctx);
1789 quic_release_crypto_context (ctx->crypto_context_index, thread_index);
1790 quic_ctx_free (ctx);
1792 /* Send connection to destination thread */
1793 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1798 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1799 session_t * udp_session,
1800 session_error_t err)
1802 QUIC_DBG (2, "UDP Session is now connected (id %u)",
1803 udp_session->session_index);
1804 /* This should always be called before quic_connect returns since UDP always
1805 * connects instantly. */
1806 clib_bihash_kv_16_8_t kv;
1807 struct sockaddr_in6 sa6;
1808 struct sockaddr *sa = (struct sockaddr *) &sa6;
1810 transport_connection_t *tc;
1811 app_worker_t *app_wrk;
1812 quicly_conn_t *conn;
1816 quicly_context_t *quicly_ctx;
1818 /* Allocate session on whatever thread udp used, i.e., probably first
1819 * worker, although this may be main thread. If it is main, it's done
1820 * with a worker barrier */
1821 thread_index = udp_session->thread_index;
1822 ASSERT (thread_index == 0 || thread_index == 1);
1823 ctx = quic_ctx_get (ctx_index, thread_index);
1827 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1830 api_context = ctx->c_s_index;
1831 app_worker_connect_notify (app_wrk, 0, SESSION_E_NONE, api_context);
1836 QUIC_DBG (2, "New ctx [%u]%x", thread_index, (ctx) ? ctx_index : ~0);
1838 ctx->udp_session_handle = session_handle (udp_session);
1839 udp_session->opaque = ctx_index;
1841 /* Init QUIC lib connection
1842 * Generate required sockaddr & salen */
1843 tc = session_get_transport (udp_session);
1844 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1846 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1847 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1848 sa, NULL, &quic_main.wrk_ctx[thread_index].next_cid,
1849 ptls_iovec_init (NULL, 0), &quic_main.hs_properties,
1851 ++quic_main.wrk_ctx[thread_index].next_cid.master_id;
1852 /* Save context handle in quicly connection */
1853 quic_store_conn_ctx (ctx->conn, ctx);
1856 /* Register connection in connections map */
1858 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1859 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1860 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1861 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1863 quic_send_packets (ctx);
1869 quic_udp_session_disconnect_callback (session_t * s)
1871 clib_warning ("UDP session disconnected???");
1875 quic_udp_session_cleanup_callback (session_t * udp_session,
1876 session_cleanup_ntf_t ntf)
1880 if (ntf != SESSION_CLEANUP_SESSION)
1883 ctx = quic_ctx_get (udp_session->opaque, udp_session->thread_index);
1884 quic_stop_ctx_timer (ctx);
1885 quic_release_crypto_context (ctx->crypto_context_index,
1886 ctx->c_thread_index);
1887 quic_ctx_free (ctx);
1891 quic_udp_session_reset_callback (session_t * s)
1893 clib_warning ("UDP session reset???");
1897 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1899 u32 new_thread = session_thread_from_handle (new_sh);
1902 QUIC_DBG (2, "Session %x migrated to %lx", s->session_index, new_sh);
1903 QUIC_ASSERT (vlib_get_thread_index () == s->thread_index);
1904 ctx = quic_ctx_get (s->opaque, s->thread_index);
1905 QUIC_ASSERT (ctx->udp_session_handle == session_handle (s));
1907 ctx->udp_session_handle = new_sh;
1909 s->opaque = 0xfeedface;
1911 quic_transfer_connection (ctx->c_c_index, new_thread);
1915 quic_udp_session_accepted_callback (session_t * udp_session)
1917 /* New UDP connection, try to accept it */
1919 quic_ctx_t *ctx, *lctx;
1920 session_t *udp_listen_session;
1921 u32 thread_index = vlib_get_thread_index ();
1923 udp_listen_session =
1924 listen_session_get_from_handle (udp_session->listener_handle);
1926 ctx_index = quic_ctx_alloc (thread_index);
1927 ctx = quic_ctx_get (ctx_index, thread_index);
1928 ctx->c_thread_index = udp_session->thread_index;
1929 ctx->c_c_index = ctx_index;
1930 ctx->c_s_index = QUIC_SESSION_INVALID;
1931 ctx->udp_session_handle = session_handle (udp_session);
1932 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1933 ctx->listener_ctx_id = udp_listen_session->opaque;
1934 lctx = quic_ctx_get (udp_listen_session->opaque,
1935 udp_listen_session->thread_index);
1936 ctx->udp_is_ip4 = lctx->c_is_ip4;
1937 ctx->parent_app_id = lctx->parent_app_id;
1938 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1939 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1940 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1941 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1943 ctx->crypto_engine = lctx->crypto_engine;
1944 ctx->ckpair_index = lctx->ckpair_index;
1945 quic_acquire_crypto_context (ctx);
1946 udp_session->opaque = ctx_index;
1947 udp_session->session_state = SESSION_STATE_READY;
1949 /* TODO timeout to delete these if they never connect */
1954 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1956 /* No-op for builtin */
1961 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1963 /* No-op for builtin */
1968 quic_custom_app_rx_callback (transport_connection_t * tc)
1971 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1972 QUIC_DBG (3, "Received app READ notification");
1973 quic_ack_rx_data (stream_session);
1974 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1976 /* Need to send packets (acks may never be sent otherwise) */
1977 ctx = quic_ctx_get (stream_session->connection_index,
1978 stream_session->thread_index);
1979 quic_send_packets (ctx);
1984 quic_custom_tx_callback (void *s, transport_send_params_t * sp)
1986 session_t *stream_session = (session_t *) s;
1987 quic_stream_data_t *stream_data;
1988 quicly_stream_t *stream;
1994 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1996 ctx = quic_ctx_get (stream_session->connection_index,
1997 stream_session->thread_index);
1998 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
2000 goto tx_end; /* Most probably a reschedule */
2003 QUIC_DBG (3, "Stream TX event");
2004 quic_ack_rx_data (stream_session);
2005 stream = ctx->stream;
2006 if (!quicly_sendstate_is_open (&stream->sendstate))
2008 QUIC_ERR ("Warning: tried to send on closed stream");
2012 stream_data = (quic_stream_data_t *) stream->data;
2013 max_deq = svm_fifo_max_dequeue (stream_session->tx_fifo);
2014 QUIC_ASSERT (max_deq >= stream_data->app_tx_data_len);
2015 if (max_deq == stream_data->app_tx_data_len)
2017 QUIC_DBG (3, "TX but no data %d / %d", max_deq,
2018 stream_data->app_tx_data_len);
2021 stream_data->app_tx_data_len = max_deq;
2022 rv = quicly_stream_sync_sendbuf (stream, 1);
2026 return quic_send_packets (ctx);
2030 * Returns 0 if a matching connection is found and is on the right thread.
2031 * Otherwise returns -1.
2032 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
2036 quic_find_packet_ctx (quic_rx_packet_ctx_t * pctx, u32 caller_thread_index)
2038 clib_bihash_kv_16_8_t kv;
2039 clib_bihash_16_8_t *h;
2041 u32 index, thread_id;
2043 h = &quic_main.connection_hash;
2044 quic_make_connection_key (&kv, &pctx->packet.cid.dest.plaintext);
2045 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
2047 if (clib_bihash_search_16_8 (h, &kv, &kv))
2049 QUIC_DBG (3, "connection not found");
2050 return QUIC_PACKET_TYPE_NONE;
2053 index = kv.value & UINT32_MAX;
2054 thread_id = kv.value >> 32;
2055 /* Check if this connection belongs to this thread, otherwise
2056 * ask for it to be moved */
2057 if (thread_id != caller_thread_index)
2059 QUIC_DBG (2, "Connection is on wrong thread");
2060 /* Cannot make full check with quicly_is_destination... */
2061 pctx->ctx_index = index;
2062 pctx->thread_index = thread_id;
2063 return QUIC_PACKET_TYPE_MIGRATE;
2065 ctx = quic_ctx_get (index, vlib_get_thread_index ());
2068 QUIC_ERR ("ctx has no conn");
2069 return QUIC_PACKET_TYPE_NONE;
2071 if (!quicly_is_destination (ctx->conn, NULL, &pctx->sa, &pctx->packet))
2072 return QUIC_PACKET_TYPE_NONE;
2074 QUIC_DBG (3, "Connection found");
2075 pctx->ctx_index = index;
2076 pctx->thread_index = thread_id;
2077 return QUIC_PACKET_TYPE_RECEIVE;
2081 quic_accept_connection (quic_rx_packet_ctx_t * pctx)
2083 quicly_context_t *quicly_ctx;
2084 session_t *quic_session;
2085 clib_bihash_kv_16_8_t kv;
2086 app_worker_t *app_wrk;
2087 quicly_conn_t *conn;
2092 /* new connection, accept and create context if packet is valid
2093 * TODO: check if socket is actually listening? */
2094 ctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2095 if (ctx->c_s_index != QUIC_SESSION_INVALID)
2097 QUIC_DBG (2, "already accepted ctx 0x%x", ctx->c_s_index);
2101 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2102 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, &pctx->sa,
2103 &pctx->packet, NULL,
2104 &quic_main.wrk_ctx[pctx->thread_index].next_cid,
2107 /* Invalid packet, pass */
2108 assert (conn == NULL);
2109 QUIC_ERR ("Accept failed with %U", quic_format_err, rv);
2110 /* TODO: cleanup created quic ctx and UDP session */
2113 assert (conn != NULL);
2115 ++quic_main.wrk_ctx[pctx->thread_index].next_cid.master_id;
2116 /* Save ctx handle in quicly connection */
2117 quic_store_conn_ctx (conn, ctx);
2120 quic_session = session_alloc (ctx->c_thread_index);
2121 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
2122 session_handle (quic_session), ctx->c_c_index);
2123 ctx->c_s_index = quic_session->session_index;
2125 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
2127 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
2128 quic_session->connection_index = ctx->c_c_index;
2129 quic_session->session_type =
2130 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
2131 quic_session->listener_handle = lctx->c_s_index;
2133 /* Register connection in connections map */
2134 quic_make_connection_key (&kv, quicly_get_master_id (conn));
2135 kv.value = ((u64) pctx->thread_index) << 32 | (u64) pctx->ctx_index;
2136 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2137 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2139 /* If notify fails, reset connection immediatly */
2140 if ((rv = app_worker_init_accepted (quic_session)))
2142 QUIC_ERR ("failed to allocate fifos");
2143 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2147 svm_fifo_init_ooo_lookup (quic_session->rx_fifo, 0 /* ooo enq */);
2148 svm_fifo_init_ooo_lookup (quic_session->tx_fifo, 1 /* ooo deq */);
2150 app_wrk = app_worker_get (quic_session->app_wrk_index);
2151 quic_session->session_state = SESSION_STATE_ACCEPTING;
2152 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
2154 QUIC_ERR ("failed to notify accept worker app");
2155 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2159 ctx->conn_state = QUIC_CONN_STATE_READY;
2163 quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx)
2165 /* short header packet; potentially a dead connection. No need to check the
2166 * length of the incoming packet, because loop is prevented by authenticating
2167 * the CID (by checking node_id and thread_id). If the peer is also sending a
2168 * reset, then the next CID is highly likely to contain a non-authenticating
2170 QUIC_DBG (2, "Sending stateless reset");
2172 session_t *udp_session;
2173 quicly_context_t *quicly_ctx;
2174 if (pctx->packet.cid.dest.plaintext.node_id != 0
2175 || pctx->packet.cid.dest.plaintext.thread_id != 0)
2177 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2178 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2180 quicly_address_t src;
2181 uint8_t payload[quicly_ctx->transport_params.max_udp_payload_size];
2182 size_t payload_len =
2183 quicly_send_stateless_reset (quicly_ctx, &src.sa, payload);
2184 if (payload_len == 0)
2187 struct iovec packet;
2188 packet.iov_len = payload_len;
2189 packet.iov_base = payload;
2191 struct _st_quicly_conn_public_t *conn =
2192 (struct _st_quicly_conn_public_t *) qctx->conn;
2194 udp_session = session_get_from_handle (udp_session_handle);
2195 rv = quic_send_datagram (udp_session, &packet, &conn->remote.address,
2196 &conn->local.address);
2197 quic_set_udp_tx_evt (udp_session);
2202 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
2203 u32 fifo_offset, quic_rx_packet_ctx_t * pctx)
2207 u32 thread_index = vlib_get_thread_index ();
2208 u32 cur_deq = svm_fifo_max_dequeue (f) - fifo_offset;
2209 quicly_context_t *quicly_ctx;
2210 session_t *udp_session;
2213 ret = svm_fifo_peek (f, fifo_offset,
2214 SESSION_CONN_HDR_LEN, (u8 *) & pctx->ph);
2215 QUIC_ASSERT (ret == SESSION_CONN_HDR_LEN);
2216 QUIC_ASSERT (pctx->ph.data_offset == 0);
2217 full_len = pctx->ph.data_length + SESSION_CONN_HDR_LEN;
2218 if (full_len > cur_deq)
2220 QUIC_ERR ("Not enough data in fifo RX");
2224 /* Quicly can read len bytes from the fifo at offset:
2225 * ph.data_offset + SESSION_CONN_HDR_LEN */
2226 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + fifo_offset,
2227 pctx->ph.data_length, pctx->data);
2228 if (ret != pctx->ph.data_length)
2230 QUIC_ERR ("Not enough data peeked in RX");
2234 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
2235 quic_build_sockaddr (&pctx->sa, &pctx->salen, &pctx->ph.rmt_ip,
2236 pctx->ph.rmt_port, pctx->ph.is_ip4);
2237 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2240 plen = quicly_decode_packet (quicly_ctx, &pctx->packet, pctx->data,
2241 pctx->ph.data_length, &off);
2243 if (plen == SIZE_MAX)
2248 rv = quic_find_packet_ctx (pctx, thread_index);
2249 if (rv == QUIC_PACKET_TYPE_RECEIVE)
2251 pctx->ptype = QUIC_PACKET_TYPE_RECEIVE;
2253 if (quic_main.vnet_crypto_enabled &&
2254 quic_main.default_crypto_engine == CRYPTO_ENGINE_VPP)
2256 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, thread_index);
2257 quic_crypto_decrypt_packet (qctx, pctx);
2261 else if (rv == QUIC_PACKET_TYPE_MIGRATE)
2263 pctx->ptype = QUIC_PACKET_TYPE_MIGRATE;
2264 /* Connection found but on wrong thread, ask move */
2266 else if (QUICLY_PACKET_IS_LONG_HEADER (pctx->packet.octets.base[0]))
2268 pctx->ptype = QUIC_PACKET_TYPE_ACCEPT;
2269 udp_session = session_get_from_handle (udp_session_handle);
2270 pctx->ctx_index = udp_session->opaque;
2271 pctx->thread_index = thread_index;
2275 pctx->ptype = QUIC_PACKET_TYPE_RESET;
2281 quic_udp_session_rx_callback (session_t * udp_session)
2283 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2284 quic_ctx_t *ctx = NULL, *prev_ctx = NULL;
2285 svm_fifo_t *f = udp_session->rx_fifo;
2287 u64 udp_session_handle = session_handle (udp_session);
2289 u32 thread_index = vlib_get_thread_index ();
2290 u32 cur_deq, fifo_offset, max_packets, i;
2292 quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_PACKETS];
2294 if (udp_session->flags & SESSION_F_IS_MIGRATING)
2296 QUIC_DBG (3, "RX on migrating udp session");
2301 max_deq = svm_fifo_max_dequeue (f);
2306 max_packets = QUIC_RCV_MAX_PACKETS;
2309 clib_memset (packets_ctx, 0xfa,
2310 QUIC_RCV_MAX_PACKETS * sizeof (quic_rx_packet_ctx_t));
2312 for (i = 0; i < max_packets; i++)
2314 packets_ctx[i].thread_index = UINT32_MAX;
2315 packets_ctx[i].ctx_index = UINT32_MAX;
2316 packets_ctx[i].ptype = QUIC_PACKET_TYPE_DROP;
2318 cur_deq = max_deq - fifo_offset;
2321 max_packets = i + 1;
2324 if (cur_deq < SESSION_CONN_HDR_LEN)
2326 fifo_offset = max_deq;
2327 max_packets = i + 1;
2328 QUIC_ERR ("Fifo %d < header size in RX", cur_deq);
2331 rv = quic_process_one_rx_packet (udp_session_handle, f,
2332 fifo_offset, &packets_ctx[i]);
2333 if (packets_ctx[i].ptype != QUIC_PACKET_TYPE_MIGRATE)
2334 fifo_offset += SESSION_CONN_HDR_LEN + packets_ctx[i].ph.data_length;
2337 max_packets = i + 1;
2342 for (i = 0; i < max_packets; i++)
2344 switch (packets_ctx[i].ptype)
2346 case QUIC_PACKET_TYPE_RECEIVE:
2347 ctx = quic_ctx_get (packets_ctx[i].ctx_index, thread_index);
2348 rv = quicly_receive (ctx->conn, NULL, &packets_ctx[i].sa,
2349 &packets_ctx[i].packet);
2350 if (rv && rv != QUICLY_ERROR_PACKET_IGNORED)
2352 QUIC_ERR ("quicly_receive return error %U",
2353 quic_format_err, rv);
2356 case QUIC_PACKET_TYPE_ACCEPT:
2357 quic_accept_connection (&packets_ctx[i]);
2359 case QUIC_PACKET_TYPE_RESET:
2360 quic_reset_connection (udp_session_handle, &packets_ctx[i]);
2364 ctx = prev_ctx = NULL;
2365 for (i = 0; i < max_packets; i++)
2368 switch (packets_ctx[i].ptype)
2370 case QUIC_PACKET_TYPE_RECEIVE:
2371 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2372 packets_ctx[i].thread_index);
2373 quic_check_quic_session_connected (ctx);
2374 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2375 packets_ctx[i].thread_index);
2377 case QUIC_PACKET_TYPE_ACCEPT:
2378 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2379 packets_ctx[i].thread_index);
2382 continue; /* this exits the for loop since other packet types are
2383 necessarily the last in the batch */
2385 if (ctx != prev_ctx)
2386 quic_send_packets (ctx);
2389 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2390 f = udp_session->rx_fifo;
2391 svm_fifo_dequeue_drop (f, fifo_offset);
2393 if (svm_fifo_max_dequeue (f))
2400 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2401 transport_endpoint_t * tep, u8 is_lcl)
2403 session_t *udp_session;
2404 if (!quic_ctx_is_stream (ctx))
2406 udp_session = session_get_from_handle (ctx->udp_session_handle);
2407 session_get_endpoint (udp_session, tep, is_lcl);
2412 quic_get_transport_listener_endpoint (u32 listener_index,
2413 transport_endpoint_t * tep, u8 is_lcl)
2416 app_listener_t *app_listener;
2417 session_t *udp_listen_session;
2418 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2419 if (quic_ctx_is_listener (ctx))
2421 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2422 udp_listen_session = app_listener_get_session (app_listener);
2423 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2425 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2429 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2430 transport_endpoint_t * tep, u8 is_lcl)
2433 ctx = quic_ctx_get (ctx_index, thread_index);
2434 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2437 static session_cb_vft_t quic_app_cb_vft = {
2438 .session_accept_callback = quic_udp_session_accepted_callback,
2439 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2440 .session_connected_callback = quic_udp_session_connected_callback,
2441 .session_reset_callback = quic_udp_session_reset_callback,
2442 .session_migrate_callback = quic_udp_session_migrate_callback,
2443 .add_segment_callback = quic_add_segment_callback,
2444 .del_segment_callback = quic_del_segment_callback,
2445 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2446 .session_cleanup_callback = quic_udp_session_cleanup_callback,
2447 .app_cert_key_pair_delete_callback = quic_app_cert_key_pair_delete_callback,
2450 static const transport_proto_vft_t quic_proto = {
2451 .connect = quic_connect,
2452 .close = quic_proto_on_close,
2453 .start_listen = quic_start_listen,
2454 .stop_listen = quic_stop_listen,
2455 .get_connection = quic_connection_get,
2456 .get_listener = quic_listener_get,
2457 .update_time = quic_update_time,
2458 .app_rx_evt = quic_custom_app_rx_callback,
2459 .custom_tx = quic_custom_tx_callback,
2460 .format_connection = format_quic_connection,
2461 .format_half_open = format_quic_half_open,
2462 .format_listener = format_quic_listener,
2463 .get_transport_endpoint = quic_get_transport_endpoint,
2464 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2465 .transport_options = {
2468 .tx_type = TRANSPORT_TX_INTERNAL,
2469 .service_type = TRANSPORT_SERVICE_APP,
2473 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
2474 static quicly_closed_by_remote_t on_closed_by_remote = {
2475 quic_on_closed_by_remote
2477 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
2480 quic_register_cipher_suite (crypto_engine_type_t type,
2481 ptls_cipher_suite_t ** ciphers)
2483 quic_main_t *qm = &quic_main;
2484 vec_validate (qm->quic_ciphers, type);
2485 clib_bitmap_set (qm->available_crypto_engines, type, 1);
2486 qm->quic_ciphers[type] = ciphers;
2490 quic_update_fifo_size ()
2492 quic_main_t *qm = &quic_main;
2493 segment_manager_props_t *seg_mgr_props =
2494 application_get_segment_manager_properties (qm->app_index);
2499 ("error while getting segment_manager_props_t, can't update fifo-size");
2503 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2504 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2507 static clib_error_t *
2508 quic_init (vlib_main_t * vm)
2510 u32 segment_size = 256 << 20;
2511 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2512 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2513 vnet_app_attach_args_t _a, *a = &_a;
2514 u64 options[APP_OPTIONS_N_OPTIONS];
2515 quic_main_t *qm = &quic_main;
2519 if (syscall (SYS_getrandom, &seed, sizeof (seed), 0) != sizeof (seed))
2520 return clib_error_return_unix (0, "getrandom() failed");
2521 RAND_seed (seed, sizeof (seed));
2523 num_threads = 1 /* main thread */ + vtm->n_threads;
2525 clib_memset (a, 0, sizeof (*a));
2526 clib_memset (options, 0, sizeof (options));
2528 a->session_cb_vft = &quic_app_cb_vft;
2529 a->api_client_index = APP_INVALID_INDEX;
2530 a->options = options;
2531 a->name = format (0, "quic");
2532 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2533 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2534 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2535 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2536 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2537 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2538 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2539 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2541 if (vnet_application_attach (a))
2543 clib_warning ("failed to attach quic app");
2544 return clib_error_return (0, "failed to attach quic app");
2547 vec_validate (qm->ctx_pool, num_threads - 1);
2548 vec_validate (qm->wrk_ctx, num_threads - 1);
2550 for (i = 0; i < num_threads; i++)
2552 qm->wrk_ctx[i].next_cid.thread_id = i;
2553 tw = &qm->wrk_ctx[i].timer_wheel;
2554 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2555 1e-3 /* timer period 1ms */ , ~0);
2556 tw->last_run_time = vlib_time_now (vlib_get_main ());
2557 clib_bihash_init_24_8 (&qm->wrk_ctx[i].crypto_context_hash,
2558 "quic crypto contexts", 64, 128 << 10);
2561 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2564 qm->app_index = a->app_index;
2565 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2566 / QUIC_TSTAMP_RESOLUTION;
2567 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2569 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2570 FIB_PROTOCOL_IP4, ~0);
2571 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2572 FIB_PROTOCOL_IP6, ~0);
2574 quic_load_openssl3_legacy_provider ();
2575 clib_bitmap_alloc (qm->available_crypto_engines,
2576 app_crypto_engine_n_types ());
2577 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2578 ptls_openssl_cipher_suites);
2579 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2581 vnet_crypto_main_t *cm = &crypto_main;
2582 if (vec_len (cm->engines) == 0)
2583 qm->vnet_crypto_enabled = 0;
2585 qm->vnet_crypto_enabled = 1;
2586 if (qm->vnet_crypto_enabled == 1)
2588 u8 empty_key[32] = {};
2589 quic_register_cipher_suite (CRYPTO_ENGINE_VPP,
2590 quic_crypto_cipher_suites);
2591 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2592 vec_validate (qm->per_thread_crypto_key_indices, num_threads);
2593 for (i = 0; i < num_threads; i++)
2595 qm->per_thread_crypto_key_indices[i] = vnet_crypto_key_add (
2596 vm, VNET_CRYPTO_ALG_AES_256_CTR, empty_key, 32);
2600 qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY;
2601 qm->default_quic_cc = QUIC_CC_RENO;
2607 VLIB_INIT_FUNCTION (quic_init);
2609 static clib_error_t *
2610 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2611 unformat_input_t * input,
2612 vlib_cli_command_t * cmd)
2614 unformat_input_t _line_input, *line_input = &_line_input;
2615 quic_main_t *qm = &quic_main;
2616 clib_error_t *e = 0;
2618 if (!unformat_user (input, unformat_line_input, line_input))
2621 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2623 if (unformat (line_input, "vpp"))
2624 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2625 else if (unformat (line_input, "picotls"))
2626 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2629 e = clib_error_return (0, "unknown input '%U'",
2630 format_unformat_error, line_input);
2635 unformat_free (line_input);
2639 u64 quic_fifosize = 0;
2640 static clib_error_t *
2641 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2642 unformat_input_t * input,
2643 vlib_cli_command_t * cmd)
2645 quic_main_t *qm = &quic_main;
2646 unformat_input_t _line_input, *line_input = &_line_input;
2649 if (!unformat_user (input, unformat_line_input, line_input))
2652 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2654 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
2656 if (tmp >= 0x100000000ULL)
2658 return clib_error_return
2659 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2661 qm->udp_fifo_size = tmp;
2662 quic_update_fifo_size ();
2665 return clib_error_return (0, "unknown input '%U'",
2666 format_unformat_error, line_input);
2673 quic_get_counter_value (u32 event_code)
2677 vlib_error_main_t *em;
2682 vm = vlib_get_main ();
2683 em = &vm->error_main;
2684 n = vlib_get_node (vm, quic_input_node.index);
2686 foreach_vlib_main ()
2688 em = &this_vlib_main->error_main;
2689 i = n->error_heap_index + code;
2690 c = em->counters[i];
2692 if (i < vec_len (em->counters_last_clear))
2693 c -= em->counters_last_clear[i];
2700 quic_show_aggregated_stats (vlib_main_t * vm)
2702 u32 num_workers = vlib_num_workers ();
2703 quic_main_t *qm = &quic_main;
2704 quic_ctx_t *ctx = NULL;
2705 quicly_stats_t st, agg_stats;
2706 u32 i, nconn = 0, nstream = 0;
2708 clib_memset (&agg_stats, 0, sizeof (agg_stats));
2709 for (i = 0; i < num_workers + 1; i++)
2711 pool_foreach (ctx, qm->ctx_pool[i])
2713 if (quic_ctx_is_conn (ctx) && ctx->conn)
2715 quicly_get_stats (ctx->conn, &st);
2716 agg_stats.rtt.smoothed += st.rtt.smoothed;
2717 agg_stats.rtt.minimum += st.rtt.minimum;
2718 agg_stats.rtt.variance += st.rtt.variance;
2719 agg_stats.num_packets.received += st.num_packets.received;
2720 agg_stats.num_packets.sent += st.num_packets.sent;
2721 agg_stats.num_packets.lost += st.num_packets.lost;
2722 agg_stats.num_packets.ack_received += st.num_packets.ack_received;
2723 agg_stats.num_bytes.received += st.num_bytes.received;
2724 agg_stats.num_bytes.sent += st.num_bytes.sent;
2727 else if (quic_ctx_is_stream (ctx))
2731 vlib_cli_output (vm, "-------- Connections --------");
2732 vlib_cli_output (vm, "Current: %u", nconn);
2733 vlib_cli_output (vm, "Opened: %d",
2734 quic_get_counter_value (QUIC_ERROR_OPENED_CONNECTION));
2735 vlib_cli_output (vm, "Closed: %d",
2736 quic_get_counter_value (QUIC_ERROR_CLOSED_CONNECTION));
2737 vlib_cli_output (vm, "---------- Streams ----------");
2738 vlib_cli_output (vm, "Current: %u", nstream);
2739 vlib_cli_output (vm, "Opened: %d",
2740 quic_get_counter_value (QUIC_ERROR_OPENED_STREAM));
2741 vlib_cli_output (vm, "Closed: %d",
2742 quic_get_counter_value (QUIC_ERROR_CLOSED_STREAM));
2743 vlib_cli_output (vm, "---------- Packets ----------");
2744 vlib_cli_output (vm, "RX Total: %d",
2745 quic_get_counter_value (QUIC_ERROR_RX_PACKETS));
2746 vlib_cli_output (vm, "RX 0RTT: %d",
2747 quic_get_counter_value (QUIC_ERROR_ZERO_RTT_RX_PACKETS));
2748 vlib_cli_output (vm, "RX 1RTT: %d",
2749 quic_get_counter_value (QUIC_ERROR_ONE_RTT_RX_PACKETS));
2750 vlib_cli_output (vm, "TX Total: %d",
2751 quic_get_counter_value (QUIC_ERROR_TX_PACKETS));
2752 vlib_cli_output (vm, "----------- Stats -----------");
2753 vlib_cli_output (vm, "Min RTT %f",
2754 nconn > 0 ? agg_stats.rtt.minimum / nconn : 0);
2755 vlib_cli_output (vm, "Smoothed RTT %f",
2756 nconn > 0 ? agg_stats.rtt.smoothed / nconn : 0);
2757 vlib_cli_output (vm, "Variance on RTT %f",
2758 nconn > 0 ? agg_stats.rtt.variance / nconn : 0);
2759 vlib_cli_output (vm, "Packets Received %lu",
2760 agg_stats.num_packets.received);
2761 vlib_cli_output (vm, "Packets Sent %lu", agg_stats.num_packets.sent);
2762 vlib_cli_output (vm, "Packets Lost %lu", agg_stats.num_packets.lost);
2763 vlib_cli_output (vm, "Packets Acks %lu",
2764 agg_stats.num_packets.ack_received);
2765 vlib_cli_output (vm, "RX bytes %lu", agg_stats.num_bytes.received);
2766 vlib_cli_output (vm, "TX bytes %lu", agg_stats.num_bytes.sent);
2770 quic_format_quicly_conn_id (u8 * s, va_list * args)
2772 quicly_cid_plaintext_t *mid = va_arg (*args, quicly_cid_plaintext_t *);
2773 s = format (s, "C%x_%x", mid->master_id, mid->thread_id);
2778 quic_format_quicly_stream_id (u8 * s, va_list * args)
2780 quicly_stream_t *stream = va_arg (*args, quicly_stream_t *);
2782 format (s, "%U S%lx", quic_format_quicly_conn_id,
2783 quicly_get_master_id (stream->conn), stream->stream_id);
2788 quic_format_listener_ctx (u8 * s, va_list * args)
2790 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2791 s = format (s, "[#%d][%x][Listener]", ctx->c_thread_index, ctx->c_c_index);
2796 quic_format_connection_ctx (u8 * s, va_list * args)
2798 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2799 quicly_stats_t quicly_stats;
2801 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2805 s = format (s, "- no conn -\n");
2808 s = format (s, "[%U]",
2809 quic_format_quicly_conn_id, quicly_get_master_id (ctx->conn));
2810 quicly_get_stats (ctx->conn, &quicly_stats);
2812 s = format (s, "[RTT >%3d, ~%3d, V%3d, last %3d]",
2813 quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
2814 quicly_stats.rtt.variance, quicly_stats.rtt.latest);
2815 s = format (s, " TX:%d RX:%d loss:%d ack:%d",
2816 quicly_stats.num_packets.sent,
2817 quicly_stats.num_packets.received,
2818 quicly_stats.num_packets.lost,
2819 quicly_stats.num_packets.ack_received);
2821 format (s, "\ncwnd:%u ssthresh:%u recovery_end:%lu", quicly_stats.cc.cwnd,
2822 quicly_stats.cc.ssthresh, quicly_stats.cc.recovery_end);
2824 quicly_context_t *quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2825 if (quicly_ctx->init_cc == &quicly_cc_cubic_init)
2829 "\nk:%d w_max:%u w_last_max:%u avoidance_start:%ld last_sent_time:%ld",
2830 quicly_stats.cc.state.cubic.k, quicly_stats.cc.state.cubic.w_max,
2831 quicly_stats.cc.state.cubic.w_last_max,
2832 quicly_stats.cc.state.cubic.avoidance_start,
2833 quicly_stats.cc.state.cubic.last_sent_time);
2835 else if (quicly_ctx->init_cc == &quicly_cc_reno_init)
2837 s = format (s, " stash:%u", quicly_stats.cc.state.reno.stash);
2844 quic_format_stream_ctx (u8 * s, va_list * args)
2846 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2847 session_t *stream_session;
2848 quicly_stream_t *stream = ctx->stream;
2851 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2852 s = format (s, "[%U]", quic_format_quicly_stream_id, stream);
2854 stream_session = session_get_if_valid (ctx->c_s_index, ctx->c_thread_index);
2855 if (!stream_session)
2857 s = format (s, "- no session -\n");
2860 txs = svm_fifo_max_dequeue (stream_session->tx_fifo);
2861 rxs = svm_fifo_max_dequeue (stream_session->rx_fifo);
2862 s = format (s, "[rx %d tx %d]\n", rxs, txs);
2866 static clib_error_t *
2867 quic_show_connections_command_fn (vlib_main_t * vm,
2868 unformat_input_t * input,
2869 vlib_cli_command_t * cmd)
2871 unformat_input_t _line_input, *line_input = &_line_input;
2872 u8 show_listeners = 0, show_conn = 0, show_stream = 0;
2873 u32 num_workers = vlib_num_workers ();
2874 quic_main_t *qm = &quic_main;
2875 clib_error_t *error = 0;
2876 quic_ctx_t *ctx = NULL;
2878 session_cli_return_if_not_enabled ();
2880 if (!unformat_user (input, unformat_line_input, line_input))
2882 quic_show_aggregated_stats (vm);
2886 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2888 if (unformat (line_input, "listener"))
2890 else if (unformat (line_input, "conn"))
2892 else if (unformat (line_input, "stream"))
2896 error = clib_error_return (0, "unknown input `%U'",
2897 format_unformat_error, line_input);
2902 for (int i = 0; i < num_workers + 1; i++)
2904 pool_foreach (ctx, qm->ctx_pool[i])
2906 if (quic_ctx_is_stream (ctx) && show_stream)
2907 vlib_cli_output (vm, "%U", quic_format_stream_ctx, ctx);
2908 else if (quic_ctx_is_listener (ctx) && show_listeners)
2909 vlib_cli_output (vm, "%U", quic_format_listener_ctx, ctx);
2910 else if (quic_ctx_is_conn (ctx) && show_conn)
2911 vlib_cli_output (vm, "%U", quic_format_connection_ctx, ctx);
2916 unformat_free (line_input);
2920 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) = {
2921 .path = "quic set crypto api",
2922 .short_help = "quic set crypto api [picotls|vpp]",
2923 .function = quic_plugin_crypto_command_fn,
2925 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2927 .path = "quic set fifo-size",
2928 .short_help = "quic set fifo-size N[K|M|G] (default 64K)",
2929 .function = quic_plugin_set_fifo_size_command_fn,
2931 VLIB_CLI_COMMAND(quic_show_ctx_command, static)=
2933 .path = "show quic",
2934 .short_help = "show quic",
2935 .function = quic_show_connections_command_fn,
2937 VLIB_CLI_COMMAND (quic_list_crypto_context_command, static) =
2939 .path = "show quic crypto context",
2940 .short_help = "list quic crypto contextes",
2941 .function = quic_list_crypto_context_command_fn,
2943 VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) =
2945 .path = "set quic max_packets_per_key",
2946 .short_help = "set quic max_packets_per_key 16777216",
2947 .function = quic_set_max_packets_per_key_fn,
2949 VLIB_CLI_COMMAND (quic_set_cc, static) = {
2950 .path = "set quic cc",
2951 .short_help = "set quic cc [reno|cubic]",
2952 .function = quic_set_cc_fn,
2954 VLIB_PLUGIN_REGISTER () =
2956 .version = VPP_BUILD_VER,
2957 .description = "Quic transport protocol",
2958 .default_disabled = 1,
2961 static clib_error_t *
2962 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2964 unformat_input_t _line_input, *line_input = &_line_input;
2965 quic_main_t *qm = &quic_main;
2966 clib_error_t *error = 0;
2970 qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2971 qm->udp_fifo_prealloc = 0;
2972 qm->connection_timeout = QUIC_DEFAULT_CONN_TIMEOUT;
2974 if (!unformat_user (input, unformat_line_input, line_input))
2977 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2979 if (unformat (line_input, "fifo-size %U", unformat_memory_size, &tmp))
2981 if (tmp >= 0x100000000ULL)
2983 error = clib_error_return (0,
2984 "fifo-size %llu (0x%llx) too large",
2988 qm->udp_fifo_size = tmp;
2990 else if (unformat (line_input, "conn-timeout %u", &i))
2991 qm->connection_timeout = i;
2992 else if (unformat (line_input, "fifo-prealloc %u", &i))
2993 qm->udp_fifo_prealloc = i;
2996 error = clib_error_return (0, "unknown input '%U'",
2997 format_unformat_error, line_input);
3002 unformat_free (line_input);
3006 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
3009 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
3010 vlib_frame_t * frame)
3015 VLIB_REGISTER_NODE (quic_input_node) =
3017 .function = quic_node_fn,
3018 .name = "quic-input",
3019 .vector_size = sizeof (u32),
3020 .type = VLIB_NODE_TYPE_INTERNAL,
3021 .n_errors = ARRAY_LEN (quic_error_strings),
3022 .error_strings = quic_error_strings,
3026 * fd.io coding-style-patch-verification: ON
3029 * eval: (c-set-style "gnu")