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);
1062 stream_session->session_state = SESSION_STATE_ACCEPTING;
1063 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
1065 QUIC_ERR ("failed to notify accept worker app");
1066 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
1067 return 0; /* Frame is still valid */
1074 quic_on_closed_by_remote (quicly_closed_by_remote_t *self, quicly_conn_t *conn,
1075 int code, uint64_t frame_type, const char *reason,
1078 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
1080 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1081 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
1082 session_handle (quic_session), quic_format_err, code,
1083 reason_len, reason);
1085 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
1086 session_transport_closing_notify (&ctx->connection);
1089 /* Timer handling */
1092 quic_get_thread_time (u8 thread_index)
1094 return quic_main.wrk_ctx[thread_index].time_now;
1098 quic_get_time (quicly_now_t * self)
1100 u8 thread_index = vlib_get_thread_index ();
1101 return quic_get_thread_time (thread_index);
1105 quic_set_time_now (u32 thread_index)
1107 vlib_main_t *vlib_main = vlib_get_main ();
1108 f64 time = vlib_time_now (vlib_main);
1109 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1110 return quic_main.wrk_ctx[thread_index].time_now;
1113 /* Transport proto callback */
1115 quic_update_time (f64 now, u8 thread_index)
1117 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1119 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1120 quic_set_time_now (thread_index);
1121 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1125 quic_timer_expired (u32 conn_index)
1128 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1129 quic_get_time (NULL));
1130 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1131 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1132 quic_send_packets (ctx);
1136 quic_update_timer (quic_ctx_t * ctx)
1138 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1139 int64_t next_timeout, next_interval;
1140 session_t *quic_session;
1143 /* This timeout is in ms which is the unit of our timer */
1144 next_timeout = quicly_get_first_timeout (ctx->conn);
1145 next_interval = next_timeout - quic_get_time (NULL);
1147 if (next_timeout == 0 || next_interval <= 0)
1149 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1155 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1156 if (svm_fifo_set_event (quic_session->tx_fifo))
1158 rv = session_send_io_evt_to_thread_custom (
1159 quic_session, quic_session->thread_index, SESSION_IO_EVT_TX);
1160 if (PREDICT_FALSE (rv))
1161 QUIC_ERR ("Failed to enqueue builtin_tx %d", rv);
1167 ASSERT (vlib_get_thread_index () == ctx->c_thread_index ||
1168 vlib_get_thread_index () == 0);
1169 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
1171 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1172 next_interval, ctx->c_c_index);
1174 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1176 if (next_timeout == INT64_MAX)
1178 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1181 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
1186 if (next_timeout == INT64_MAX)
1188 quic_stop_ctx_timer (ctx);
1191 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1198 quic_expired_timers_dispatch (u32 * expired_timers)
1202 for (i = 0; i < vec_len (expired_timers); i++)
1204 quic_timer_expired (expired_timers[i]);
1208 /* Transport proto functions */
1210 quic_connect_stream (session_t * quic_session, session_endpoint_cfg_t * sep)
1212 uint64_t quic_session_handle;
1213 session_t *stream_session;
1214 quic_stream_data_t *stream_data;
1215 quicly_stream_t *stream;
1216 quicly_conn_t *conn;
1217 app_worker_t *app_wrk;
1218 quic_ctx_t *qctx, *sctx;
1223 /* Find base session to which the user want to attach a stream */
1224 quic_session_handle = session_handle (quic_session);
1225 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
1227 if (session_type_transport_proto (quic_session->session_type) !=
1228 TRANSPORT_PROTO_QUIC)
1230 QUIC_ERR ("received incompatible session");
1234 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1237 QUIC_ERR ("Invalid app worker :(");
1241 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1242 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1243 qctx = quic_ctx_get (quic_session->connection_index,
1244 quic_session->thread_index);
1245 if (quic_ctx_is_stream (qctx))
1247 QUIC_ERR ("session is a stream");
1248 quic_ctx_free (sctx);
1252 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1253 sctx->parent_app_id = qctx->parent_app_id;
1254 sctx->quic_connection_ctx_id = qctx->c_c_index;
1255 sctx->c_c_index = sctx_index;
1256 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1257 sctx->flags |= QUIC_F_IS_STREAM;
1261 if (!conn || !quicly_connection_is_ready (conn))
1264 is_unidir = sep->transport_flags & TRANSPORT_CFG_F_UNIDIRECTIONAL;
1265 if ((rv = quicly_open_stream (conn, &stream, is_unidir)))
1267 QUIC_DBG (2, "Stream open failed with %d", rv);
1270 quic_increment_counter (QUIC_ERROR_OPENED_STREAM, 1);
1272 sctx->stream = stream;
1273 sctx->crypto_context_index = qctx->crypto_context_index;
1275 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1277 stream_session = session_alloc (qctx->c_thread_index);
1278 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1279 session_handle (stream_session), sctx_index);
1280 stream_session->app_wrk_index = app_wrk->wrk_index;
1281 stream_session->connection_index = sctx_index;
1282 stream_session->listener_handle = quic_session_handle;
1283 stream_session->session_type =
1284 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1286 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1288 sctx->c_s_index = stream_session->session_index;
1289 stream_data = (quic_stream_data_t *) stream->data;
1290 stream_data->ctx_id = sctx->c_c_index;
1291 stream_data->thread_index = sctx->c_thread_index;
1292 stream_data->app_rx_data_len = 0;
1293 stream_data->app_tx_data_len = 0;
1294 stream_session->session_state = SESSION_STATE_READY;
1295 stream_session->opaque = sep->opaque;
1297 /* For now we only reset streams. Cleanup will be triggered by timers */
1298 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1300 QUIC_ERR ("failed to app_worker_init_connected");
1301 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1302 return app_worker_connect_notify (app_wrk, NULL, rv, sep->opaque);
1305 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1306 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1307 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1309 if (app_worker_connect_notify (app_wrk, stream_session, SESSION_E_NONE,
1312 QUIC_ERR ("failed to notify app");
1313 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
1314 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1322 quic_connect_connection (session_endpoint_cfg_t * sep)
1324 vnet_connect_args_t _cargs, *cargs = &_cargs;
1325 transport_endpt_crypto_cfg_t *ccfg;
1326 quic_main_t *qm = &quic_main;
1327 u32 ctx_index, thread_index;
1329 app_worker_t *app_wrk;
1334 return SESSION_E_NOEXTCFG;
1336 /* Use pool on thread 1 if we have workers because of UDP */
1337 thread_index = transport_cl_thread ();
1338 ccfg = &sep->ext_cfg->crypto;
1340 clib_memset (cargs, 0, sizeof (*cargs));
1341 ctx_index = quic_ctx_alloc (thread_index);
1342 ctx = quic_ctx_get (ctx_index, thread_index);
1343 ctx->parent_app_wrk_id = sep->app_wrk_index;
1344 ctx->c_s_index = QUIC_SESSION_INVALID;
1345 ctx->c_c_index = ctx_index;
1346 ctx->udp_is_ip4 = sep->is_ip4;
1347 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1348 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1349 ctx->client_opaque = sep->opaque;
1350 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1351 if (ccfg->hostname[0])
1352 ctx->srv_hostname = format (0, "%s", ccfg->hostname);
1354 /* needed by quic for crypto + determining client / server */
1355 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1356 &sep->ip, sep->is_ip4);
1357 vec_terminate_c_string (ctx->srv_hostname);
1359 clib_memcpy (&cargs->sep_ext, sep, sizeof (session_endpoint_cfg_t));
1360 cargs->sep.transport_proto = TRANSPORT_PROTO_UDP;
1361 cargs->app_index = qm->app_index;
1362 cargs->api_context = ctx_index;
1364 app_wrk = app_worker_get (sep->app_wrk_index);
1365 app = application_get (app_wrk->app_index);
1366 ctx->parent_app_id = app_wrk->app_index;
1367 cargs->sep_ext.ns_index = app->ns_index;
1368 cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1370 ctx->crypto_engine = ccfg->crypto_engine;
1371 ctx->ckpair_index = ccfg->ckpair_index;
1372 if ((error = quic_acquire_crypto_context (ctx)))
1375 if ((error = vnet_connect (cargs)))
1382 quic_connect (transport_endpoint_cfg_t * tep)
1384 QUIC_DBG (2, "Called quic_connect");
1385 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1386 session_t *quic_session;
1387 sep = (session_endpoint_cfg_t *) tep;
1389 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1391 return quic_connect_stream (quic_session, sep);
1393 return quic_connect_connection (sep);
1397 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1400 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1403 session_t *stream_session = session_get (ctx->c_s_index,
1404 ctx->c_thread_index);
1406 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1408 if (quic_ctx_is_stream (ctx))
1410 quicly_stream_t *stream = ctx->stream;
1411 if (!quicly_stream_has_send_side (quicly_is_client (stream->conn),
1414 quicly_sendstate_shutdown (&stream->sendstate, ctx->bytes_written +
1415 svm_fifo_max_dequeue
1416 (stream_session->tx_fifo));
1417 err = quicly_stream_sync_sendbuf (stream, 1);
1420 QUIC_DBG (1, "sendstate_shutdown failed for stream session %lu",
1421 session_handle (stream_session));
1422 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1424 quic_send_packets (ctx);
1428 switch (ctx->conn_state)
1430 case QUIC_CONN_STATE_OPENED:
1431 case QUIC_CONN_STATE_HANDSHAKE:
1432 case QUIC_CONN_STATE_READY:
1433 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1434 quicly_conn_t *conn = ctx->conn;
1435 /* Start connection closing. Keep sending packets until quicly_send
1436 returns QUICLY_ERROR_FREE_CONNECTION */
1438 quic_increment_counter (QUIC_ERROR_CLOSED_CONNECTION, 1);
1439 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1440 /* This also causes all streams to be closed (and the cb called) */
1441 quic_send_packets (ctx);
1443 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1444 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1445 /* send_packets will eventually return an error, we delete the conn at
1448 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1449 quic_connection_delete (ctx);
1451 case QUIC_CONN_STATE_ACTIVE_CLOSING:
1454 QUIC_ERR ("Trying to close conn in state %d", ctx->conn_state);
1460 quic_start_listen (u32 quic_listen_session_index,
1461 transport_endpoint_cfg_t *tep)
1463 vnet_listen_args_t _bargs, *args = &_bargs;
1464 transport_endpt_crypto_cfg_t *ccfg;
1465 quic_main_t *qm = &quic_main;
1466 session_handle_t udp_handle;
1467 session_endpoint_cfg_t *sep;
1468 session_t *udp_listen_session;
1469 app_worker_t *app_wrk;
1473 app_listener_t *app_listener;
1476 sep = (session_endpoint_cfg_t *) tep;
1478 return SESSION_E_NOEXTCFG;
1480 ccfg = &sep->ext_cfg->crypto;
1481 app_wrk = app_worker_get (sep->app_wrk_index);
1482 app = application_get (app_wrk->app_index);
1483 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1485 clib_memset (args, 0, sizeof (*args));
1486 args->app_index = qm->app_index;
1487 args->sep_ext = *sep;
1488 args->sep_ext.ns_index = app->ns_index;
1489 args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP;
1490 args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1491 if ((rv = vnet_listen (args)))
1494 lctx_index = quic_ctx_alloc (0);
1495 udp_handle = args->handle;
1496 app_listener = app_listener_get_w_handle (udp_handle);
1497 udp_listen_session = app_listener_get_session (app_listener);
1498 udp_listen_session->opaque = lctx_index;
1500 lctx = quic_ctx_get (lctx_index, 0);
1501 lctx->flags |= QUIC_F_IS_LISTENER;
1503 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1504 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1505 lctx->c_rmt_port = args->sep.peer.port;
1506 lctx->c_lcl_port = args->sep.port;
1507 lctx->c_is_ip4 = args->sep.is_ip4;
1508 lctx->c_fib_index = args->sep.fib_index;
1509 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1510 lctx->parent_app_wrk_id = sep->app_wrk_index;
1511 lctx->parent_app_id = app_wrk->app_index;
1512 lctx->udp_session_handle = udp_handle;
1513 lctx->c_s_index = quic_listen_session_index;
1514 lctx->crypto_engine = ccfg->crypto_engine;
1515 lctx->ckpair_index = ccfg->ckpair_index;
1516 if ((rv = quic_acquire_crypto_context (lctx)))
1519 QUIC_DBG (2, "Listening UDP session 0x%lx",
1520 session_handle (udp_listen_session));
1521 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1526 quic_stop_listen (u32 lctx_index)
1528 QUIC_DBG (2, "Called quic_stop_listen");
1530 lctx = quic_ctx_get (lctx_index, 0);
1531 QUIC_ASSERT (quic_ctx_is_listener (lctx));
1532 vnet_unlisten_args_t a = {
1533 .handle = lctx->udp_session_handle,
1534 .app_index = quic_main.app_index,
1535 .wrk_map_index = 0 /* default wrk */
1537 if (vnet_unlisten (&a))
1538 clib_warning ("unlisten errored");
1540 quic_release_crypto_context (lctx->crypto_context_index,
1541 0 /* thread_index */ );
1542 quic_ctx_free (lctx);
1546 static transport_connection_t *
1547 quic_connection_get (u32 ctx_index, u32 thread_index)
1550 ctx = quic_ctx_get (ctx_index, thread_index);
1551 return &ctx->connection;
1554 static transport_connection_t *
1555 quic_listener_get (u32 listener_index)
1557 QUIC_DBG (2, "Called quic_listener_get");
1559 ctx = quic_ctx_get (listener_index, 0);
1560 return &ctx->connection;
1564 format_quic_ctx (u8 * s, va_list * args)
1566 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1567 u32 verbose = va_arg (*args, u32);
1572 str = format (str, "[%d:%d][Q] ", ctx->c_thread_index, ctx->c_s_index);
1574 if (quic_ctx_is_listener (ctx))
1575 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1576 else if (quic_ctx_is_stream (ctx))
1577 str = format (str, "Stream %ld conn %d",
1578 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1579 else /* connection */
1580 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1581 ctx->udp_session_handle);
1583 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1584 ctx->parent_app_wrk_id);
1587 s = format (s, "%-" SESSION_CLI_ID_LEN "s%-" SESSION_CLI_STATE_LEN "d",
1588 str, ctx->conn_state);
1590 s = format (s, "%s\n", str);
1596 format_quic_connection (u8 * s, va_list * args)
1598 u32 qc_index = va_arg (*args, u32);
1599 u32 thread_index = va_arg (*args, u32);
1600 u32 verbose = va_arg (*args, u32);
1601 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1602 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1607 format_quic_half_open (u8 * s, va_list * args)
1609 u32 qc_index = va_arg (*args, u32);
1610 u32 thread_index = va_arg (*args, u32);
1611 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1612 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1613 ctx->parent_app_id);
1619 format_quic_listener (u8 * s, va_list * args)
1621 u32 tci = va_arg (*args, u32);
1622 u32 thread_index = va_arg (*args, u32);
1623 u32 verbose = va_arg (*args, u32);
1624 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1625 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1629 /* Session layer callbacks */
1632 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1633 ip46_address_t * addr, u16 port, u8 is_ip4)
1637 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1638 sa4->sin_family = AF_INET;
1639 sa4->sin_port = port;
1640 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1641 *salen = sizeof (struct sockaddr_in);
1645 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1646 sa6->sin6_family = AF_INET6;
1647 sa6->sin6_port = port;
1648 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1649 *salen = sizeof (struct sockaddr_in6);
1654 quic_on_quic_session_connected (quic_ctx_t * ctx)
1656 session_t *quic_session;
1657 app_worker_t *app_wrk;
1658 u32 ctx_id = ctx->c_c_index;
1659 u32 thread_index = ctx->c_thread_index;
1662 quic_session = session_alloc (thread_index);
1664 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1665 ctx->c_s_index = quic_session->session_index;
1666 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1667 quic_session->connection_index = ctx->c_c_index;
1668 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1669 quic_session->session_type =
1670 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1672 /* If quic session connected fails, immediatly close connection */
1673 app_wrk = app_worker_get (ctx->parent_app_wrk_id);
1674 if ((rv = app_worker_init_connected (app_wrk, quic_session)))
1676 QUIC_ERR ("failed to app_worker_init_connected");
1677 quic_proto_on_close (ctx_id, thread_index);
1678 app_worker_connect_notify (app_wrk, NULL, rv, ctx->client_opaque);
1682 quic_session->session_state = SESSION_STATE_CONNECTING;
1683 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1684 SESSION_E_NONE, ctx->client_opaque)))
1686 QUIC_ERR ("failed to notify app %d", rv);
1687 quic_proto_on_close (ctx_id, thread_index);
1693 quic_check_quic_session_connected (quic_ctx_t * ctx)
1695 /* Called when we need to trigger quic session connected
1696 * we may call this function on the server side / at
1699 /* Conn may be set to null if the connection is terminated */
1700 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1702 if (!quicly_connection_is_ready (ctx->conn))
1704 ctx->conn_state = QUIC_CONN_STATE_READY;
1705 if (!quicly_is_client (ctx->conn))
1707 quic_on_quic_session_connected (ctx);
1711 quic_update_conn_ctx (quicly_conn_t * conn, quicly_context_t * quicly_context)
1713 /* we need to update the quicly_conn on migrate
1714 * as it contains a pointer to the crypto context */
1715 ptls_context_t **tls;
1716 quicly_context_t **_quicly_context;
1717 _quicly_context = (quicly_context_t **) conn;
1718 *_quicly_context = quicly_context;
1719 tls = (ptls_context_t **) quicly_get_tls (conn);
1720 *tls = quicly_context->tls;
1724 quic_receive_connection (void *arg)
1726 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1727 quic_ctx_t *temp_ctx, *new_ctx;
1728 clib_bihash_kv_16_8_t kv;
1729 quicly_conn_t *conn;
1730 quicly_context_t *quicly_context;
1731 session_t *udp_session;
1734 new_ctx_id = quic_ctx_alloc (thread_index);
1735 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1737 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1740 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1741 clib_mem_free (temp_ctx);
1743 new_ctx->c_thread_index = thread_index;
1744 new_ctx->c_c_index = new_ctx_id;
1745 quic_acquire_crypto_context (new_ctx);
1747 conn = new_ctx->conn;
1748 quicly_context = quic_get_quicly_ctx_from_ctx (new_ctx);
1749 quic_update_conn_ctx (conn, quicly_context);
1751 quic_store_conn_ctx (conn, new_ctx);
1752 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1753 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1754 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1755 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1756 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1757 quic_update_timer (new_ctx);
1759 /* Trigger write on this connection if necessary */
1760 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1761 udp_session->opaque = new_ctx_id;
1762 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1763 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1764 quic_set_udp_tx_evt (udp_session);
1768 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1770 quic_ctx_t *ctx, *temp_ctx;
1771 u32 thread_index = vlib_get_thread_index ();
1773 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1775 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1776 QUIC_ASSERT (temp_ctx != NULL);
1777 ctx = quic_ctx_get (ctx_index, thread_index);
1779 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1781 quic_stop_ctx_timer (ctx);
1782 quic_release_crypto_context (ctx->crypto_context_index, thread_index);
1783 quic_ctx_free (ctx);
1785 /* Send connection to destination thread */
1786 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1791 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1792 session_t * udp_session,
1793 session_error_t err)
1795 QUIC_DBG (2, "UDP Session is now connected (id %u)",
1796 udp_session->session_index);
1797 /* This should always be called before quic_connect returns since UDP always
1798 * connects instantly. */
1799 clib_bihash_kv_16_8_t kv;
1800 struct sockaddr_in6 sa6;
1801 struct sockaddr *sa = (struct sockaddr *) &sa6;
1803 transport_connection_t *tc;
1804 app_worker_t *app_wrk;
1805 quicly_conn_t *conn;
1809 quicly_context_t *quicly_ctx;
1811 /* Allocate session on whatever thread udp used, i.e., probably first
1812 * worker, although this may be main thread. If it is main, it's done
1813 * with a worker barrier */
1814 thread_index = udp_session->thread_index;
1815 ASSERT (thread_index == 0 || thread_index == 1);
1816 ctx = quic_ctx_get (ctx_index, thread_index);
1820 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1823 api_context = ctx->c_s_index;
1824 app_worker_connect_notify (app_wrk, 0, SESSION_E_NONE, api_context);
1829 QUIC_DBG (2, "New ctx [%u]%x", thread_index, (ctx) ? ctx_index : ~0);
1831 ctx->udp_session_handle = session_handle (udp_session);
1832 udp_session->opaque = ctx_index;
1834 /* Init QUIC lib connection
1835 * Generate required sockaddr & salen */
1836 tc = session_get_transport (udp_session);
1837 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1839 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1840 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1841 sa, NULL, &quic_main.wrk_ctx[thread_index].next_cid,
1842 ptls_iovec_init (NULL, 0), &quic_main.hs_properties,
1844 ++quic_main.wrk_ctx[thread_index].next_cid.master_id;
1845 /* Save context handle in quicly connection */
1846 quic_store_conn_ctx (ctx->conn, ctx);
1849 /* Register connection in connections map */
1851 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1852 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1853 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1854 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1856 quic_send_packets (ctx);
1862 quic_udp_session_disconnect_callback (session_t * s)
1864 clib_warning ("UDP session disconnected???");
1868 quic_udp_session_cleanup_callback (session_t * udp_session,
1869 session_cleanup_ntf_t ntf)
1873 if (ntf != SESSION_CLEANUP_SESSION)
1876 ctx = quic_ctx_get (udp_session->opaque, udp_session->thread_index);
1877 quic_stop_ctx_timer (ctx);
1878 quic_release_crypto_context (ctx->crypto_context_index,
1879 ctx->c_thread_index);
1880 quic_ctx_free (ctx);
1884 quic_udp_session_reset_callback (session_t * s)
1886 clib_warning ("UDP session reset???");
1890 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1892 u32 new_thread = session_thread_from_handle (new_sh);
1895 QUIC_DBG (2, "Session %x migrated to %lx", s->session_index, new_sh);
1896 QUIC_ASSERT (vlib_get_thread_index () == s->thread_index);
1897 ctx = quic_ctx_get (s->opaque, s->thread_index);
1898 QUIC_ASSERT (ctx->udp_session_handle == session_handle (s));
1900 ctx->udp_session_handle = new_sh;
1902 s->opaque = 0xfeedface;
1904 quic_transfer_connection (ctx->c_c_index, new_thread);
1908 quic_udp_session_accepted_callback (session_t * udp_session)
1910 /* New UDP connection, try to accept it */
1912 quic_ctx_t *ctx, *lctx;
1913 session_t *udp_listen_session;
1914 u32 thread_index = vlib_get_thread_index ();
1916 udp_listen_session =
1917 listen_session_get_from_handle (udp_session->listener_handle);
1919 ctx_index = quic_ctx_alloc (thread_index);
1920 ctx = quic_ctx_get (ctx_index, thread_index);
1921 ctx->c_thread_index = udp_session->thread_index;
1922 ctx->c_c_index = ctx_index;
1923 ctx->c_s_index = QUIC_SESSION_INVALID;
1924 ctx->udp_session_handle = session_handle (udp_session);
1925 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1926 ctx->listener_ctx_id = udp_listen_session->opaque;
1927 lctx = quic_ctx_get (udp_listen_session->opaque,
1928 udp_listen_session->thread_index);
1929 ctx->udp_is_ip4 = lctx->c_is_ip4;
1930 ctx->parent_app_id = lctx->parent_app_id;
1931 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1932 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1933 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1934 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1936 ctx->crypto_engine = lctx->crypto_engine;
1937 ctx->ckpair_index = lctx->ckpair_index;
1938 quic_acquire_crypto_context (ctx);
1939 udp_session->opaque = ctx_index;
1940 udp_session->session_state = SESSION_STATE_READY;
1942 /* TODO timeout to delete these if they never connect */
1947 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1949 /* No-op for builtin */
1954 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1956 /* No-op for builtin */
1961 quic_custom_app_rx_callback (transport_connection_t * tc)
1964 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1965 QUIC_DBG (3, "Received app READ notification");
1966 quic_ack_rx_data (stream_session);
1967 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1969 /* Need to send packets (acks may never be sent otherwise) */
1970 ctx = quic_ctx_get (stream_session->connection_index,
1971 stream_session->thread_index);
1972 quic_send_packets (ctx);
1977 quic_custom_tx_callback (void *s, transport_send_params_t * sp)
1979 session_t *stream_session = (session_t *) s;
1980 quic_stream_data_t *stream_data;
1981 quicly_stream_t *stream;
1987 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1989 ctx = quic_ctx_get (stream_session->connection_index,
1990 stream_session->thread_index);
1991 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1993 goto tx_end; /* Most probably a reschedule */
1996 QUIC_DBG (3, "Stream TX event");
1997 quic_ack_rx_data (stream_session);
1998 stream = ctx->stream;
1999 if (!quicly_sendstate_is_open (&stream->sendstate))
2001 QUIC_ERR ("Warning: tried to send on closed stream");
2005 stream_data = (quic_stream_data_t *) stream->data;
2006 max_deq = svm_fifo_max_dequeue (stream_session->tx_fifo);
2007 QUIC_ASSERT (max_deq >= stream_data->app_tx_data_len);
2008 if (max_deq == stream_data->app_tx_data_len)
2010 QUIC_DBG (3, "TX but no data %d / %d", max_deq,
2011 stream_data->app_tx_data_len);
2014 stream_data->app_tx_data_len = max_deq;
2015 rv = quicly_stream_sync_sendbuf (stream, 1);
2019 return quic_send_packets (ctx);
2023 * Returns 0 if a matching connection is found and is on the right thread.
2024 * Otherwise returns -1.
2025 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
2029 quic_find_packet_ctx (quic_rx_packet_ctx_t * pctx, u32 caller_thread_index)
2031 clib_bihash_kv_16_8_t kv;
2032 clib_bihash_16_8_t *h;
2034 u32 index, thread_id;
2036 h = &quic_main.connection_hash;
2037 quic_make_connection_key (&kv, &pctx->packet.cid.dest.plaintext);
2038 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
2040 if (clib_bihash_search_16_8 (h, &kv, &kv))
2042 QUIC_DBG (3, "connection not found");
2043 return QUIC_PACKET_TYPE_NONE;
2046 index = kv.value & UINT32_MAX;
2047 thread_id = kv.value >> 32;
2048 /* Check if this connection belongs to this thread, otherwise
2049 * ask for it to be moved */
2050 if (thread_id != caller_thread_index)
2052 QUIC_DBG (2, "Connection is on wrong thread");
2053 /* Cannot make full check with quicly_is_destination... */
2054 pctx->ctx_index = index;
2055 pctx->thread_index = thread_id;
2056 return QUIC_PACKET_TYPE_MIGRATE;
2058 ctx = quic_ctx_get (index, vlib_get_thread_index ());
2061 QUIC_ERR ("ctx has no conn");
2062 return QUIC_PACKET_TYPE_NONE;
2064 if (!quicly_is_destination (ctx->conn, NULL, &pctx->sa, &pctx->packet))
2065 return QUIC_PACKET_TYPE_NONE;
2067 QUIC_DBG (3, "Connection found");
2068 pctx->ctx_index = index;
2069 pctx->thread_index = thread_id;
2070 return QUIC_PACKET_TYPE_RECEIVE;
2074 quic_accept_connection (quic_rx_packet_ctx_t * pctx)
2076 quicly_context_t *quicly_ctx;
2077 session_t *quic_session;
2078 clib_bihash_kv_16_8_t kv;
2079 app_worker_t *app_wrk;
2080 quicly_conn_t *conn;
2085 /* new connection, accept and create context if packet is valid
2086 * TODO: check if socket is actually listening? */
2087 ctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2088 if (ctx->c_s_index != QUIC_SESSION_INVALID)
2090 QUIC_DBG (2, "already accepted ctx 0x%x", ctx->c_s_index);
2094 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2095 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, &pctx->sa,
2096 &pctx->packet, NULL,
2097 &quic_main.wrk_ctx[pctx->thread_index].next_cid,
2100 /* Invalid packet, pass */
2101 assert (conn == NULL);
2102 QUIC_ERR ("Accept failed with %U", quic_format_err, rv);
2103 /* TODO: cleanup created quic ctx and UDP session */
2106 assert (conn != NULL);
2108 ++quic_main.wrk_ctx[pctx->thread_index].next_cid.master_id;
2109 /* Save ctx handle in quicly connection */
2110 quic_store_conn_ctx (conn, ctx);
2113 quic_session = session_alloc (ctx->c_thread_index);
2114 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
2115 session_handle (quic_session), ctx->c_c_index);
2116 ctx->c_s_index = quic_session->session_index;
2118 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
2120 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
2121 quic_session->connection_index = ctx->c_c_index;
2122 quic_session->session_type =
2123 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
2124 quic_session->listener_handle = lctx->c_s_index;
2126 /* Register connection in connections map */
2127 quic_make_connection_key (&kv, quicly_get_master_id (conn));
2128 kv.value = ((u64) pctx->thread_index) << 32 | (u64) pctx->ctx_index;
2129 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2130 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2132 /* If notify fails, reset connection immediatly */
2133 if ((rv = app_worker_init_accepted (quic_session)))
2135 QUIC_ERR ("failed to allocate fifos");
2136 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2140 app_wrk = app_worker_get (quic_session->app_wrk_index);
2141 quic_session->session_state = SESSION_STATE_ACCEPTING;
2142 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
2144 QUIC_ERR ("failed to notify accept worker app");
2145 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2149 ctx->conn_state = QUIC_CONN_STATE_READY;
2153 quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx)
2155 /* short header packet; potentially a dead connection. No need to check the
2156 * length of the incoming packet, because loop is prevented by authenticating
2157 * the CID (by checking node_id and thread_id). If the peer is also sending a
2158 * reset, then the next CID is highly likely to contain a non-authenticating
2160 QUIC_DBG (2, "Sending stateless reset");
2162 session_t *udp_session;
2163 quicly_context_t *quicly_ctx;
2164 if (pctx->packet.cid.dest.plaintext.node_id != 0
2165 || pctx->packet.cid.dest.plaintext.thread_id != 0)
2167 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2168 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2170 quicly_address_t src;
2171 uint8_t payload[quicly_ctx->transport_params.max_udp_payload_size];
2172 size_t payload_len =
2173 quicly_send_stateless_reset (quicly_ctx, &src.sa, payload);
2174 if (payload_len == 0)
2177 struct iovec packet;
2178 packet.iov_len = payload_len;
2179 packet.iov_base = payload;
2181 struct _st_quicly_conn_public_t *conn =
2182 (struct _st_quicly_conn_public_t *) qctx->conn;
2184 udp_session = session_get_from_handle (udp_session_handle);
2185 rv = quic_send_datagram (udp_session, &packet, &conn->remote.address,
2186 &conn->local.address);
2187 quic_set_udp_tx_evt (udp_session);
2192 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
2193 u32 fifo_offset, quic_rx_packet_ctx_t * pctx)
2197 u32 thread_index = vlib_get_thread_index ();
2198 u32 cur_deq = svm_fifo_max_dequeue (f) - fifo_offset;
2199 quicly_context_t *quicly_ctx;
2200 session_t *udp_session;
2203 ret = svm_fifo_peek (f, fifo_offset,
2204 SESSION_CONN_HDR_LEN, (u8 *) & pctx->ph);
2205 QUIC_ASSERT (ret == SESSION_CONN_HDR_LEN);
2206 QUIC_ASSERT (pctx->ph.data_offset == 0);
2207 full_len = pctx->ph.data_length + SESSION_CONN_HDR_LEN;
2208 if (full_len > cur_deq)
2210 QUIC_ERR ("Not enough data in fifo RX");
2214 /* Quicly can read len bytes from the fifo at offset:
2215 * ph.data_offset + SESSION_CONN_HDR_LEN */
2216 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + fifo_offset,
2217 pctx->ph.data_length, pctx->data);
2218 if (ret != pctx->ph.data_length)
2220 QUIC_ERR ("Not enough data peeked in RX");
2224 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
2225 quic_build_sockaddr (&pctx->sa, &pctx->salen, &pctx->ph.rmt_ip,
2226 pctx->ph.rmt_port, pctx->ph.is_ip4);
2227 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2230 plen = quicly_decode_packet (quicly_ctx, &pctx->packet, pctx->data,
2231 pctx->ph.data_length, &off);
2233 if (plen == SIZE_MAX)
2238 rv = quic_find_packet_ctx (pctx, thread_index);
2239 if (rv == QUIC_PACKET_TYPE_RECEIVE)
2241 pctx->ptype = QUIC_PACKET_TYPE_RECEIVE;
2243 if (quic_main.vnet_crypto_enabled &&
2244 quic_main.default_crypto_engine == CRYPTO_ENGINE_VPP)
2246 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, thread_index);
2247 quic_crypto_decrypt_packet (qctx, pctx);
2251 else if (rv == QUIC_PACKET_TYPE_MIGRATE)
2253 pctx->ptype = QUIC_PACKET_TYPE_MIGRATE;
2254 /* Connection found but on wrong thread, ask move */
2256 else if (QUICLY_PACKET_IS_LONG_HEADER (pctx->packet.octets.base[0]))
2258 pctx->ptype = QUIC_PACKET_TYPE_ACCEPT;
2259 udp_session = session_get_from_handle (udp_session_handle);
2260 pctx->ctx_index = udp_session->opaque;
2261 pctx->thread_index = thread_index;
2265 pctx->ptype = QUIC_PACKET_TYPE_RESET;
2271 quic_udp_session_rx_callback (session_t * udp_session)
2273 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2274 quic_ctx_t *ctx = NULL, *prev_ctx = NULL;
2275 svm_fifo_t *f = udp_session->rx_fifo;
2277 u64 udp_session_handle = session_handle (udp_session);
2279 u32 thread_index = vlib_get_thread_index ();
2280 u32 cur_deq, fifo_offset, max_packets, i;
2282 quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_PACKETS];
2284 if (udp_session->flags & SESSION_F_IS_MIGRATING)
2286 QUIC_DBG (3, "RX on migrating udp session");
2291 max_deq = svm_fifo_max_dequeue (f);
2296 max_packets = QUIC_RCV_MAX_PACKETS;
2299 clib_memset (packets_ctx, 0xfa,
2300 QUIC_RCV_MAX_PACKETS * sizeof (quic_rx_packet_ctx_t));
2302 for (i = 0; i < max_packets; i++)
2304 packets_ctx[i].thread_index = UINT32_MAX;
2305 packets_ctx[i].ctx_index = UINT32_MAX;
2306 packets_ctx[i].ptype = QUIC_PACKET_TYPE_DROP;
2308 cur_deq = max_deq - fifo_offset;
2311 max_packets = i + 1;
2314 if (cur_deq < SESSION_CONN_HDR_LEN)
2316 fifo_offset = max_deq;
2317 max_packets = i + 1;
2318 QUIC_ERR ("Fifo %d < header size in RX", cur_deq);
2321 rv = quic_process_one_rx_packet (udp_session_handle, f,
2322 fifo_offset, &packets_ctx[i]);
2323 if (packets_ctx[i].ptype != QUIC_PACKET_TYPE_MIGRATE)
2324 fifo_offset += SESSION_CONN_HDR_LEN + packets_ctx[i].ph.data_length;
2327 max_packets = i + 1;
2332 for (i = 0; i < max_packets; i++)
2334 switch (packets_ctx[i].ptype)
2336 case QUIC_PACKET_TYPE_RECEIVE:
2337 ctx = quic_ctx_get (packets_ctx[i].ctx_index, thread_index);
2338 rv = quicly_receive (ctx->conn, NULL, &packets_ctx[i].sa,
2339 &packets_ctx[i].packet);
2340 if (rv && rv != QUICLY_ERROR_PACKET_IGNORED)
2342 QUIC_ERR ("quicly_receive return error %U",
2343 quic_format_err, rv);
2346 case QUIC_PACKET_TYPE_ACCEPT:
2347 quic_accept_connection (&packets_ctx[i]);
2349 case QUIC_PACKET_TYPE_RESET:
2350 quic_reset_connection (udp_session_handle, &packets_ctx[i]);
2354 ctx = prev_ctx = NULL;
2355 for (i = 0; i < max_packets; i++)
2358 switch (packets_ctx[i].ptype)
2360 case QUIC_PACKET_TYPE_RECEIVE:
2361 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2362 packets_ctx[i].thread_index);
2363 quic_check_quic_session_connected (ctx);
2364 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2365 packets_ctx[i].thread_index);
2367 case QUIC_PACKET_TYPE_ACCEPT:
2368 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2369 packets_ctx[i].thread_index);
2372 continue; /* this exits the for loop since other packet types are
2373 necessarily the last in the batch */
2375 if (ctx != prev_ctx)
2376 quic_send_packets (ctx);
2379 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2380 f = udp_session->rx_fifo;
2381 svm_fifo_dequeue_drop (f, fifo_offset);
2383 if (svm_fifo_max_dequeue (f))
2390 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2391 transport_endpoint_t * tep, u8 is_lcl)
2393 session_t *udp_session;
2394 if (!quic_ctx_is_stream (ctx))
2396 udp_session = session_get_from_handle (ctx->udp_session_handle);
2397 session_get_endpoint (udp_session, tep, is_lcl);
2402 quic_get_transport_listener_endpoint (u32 listener_index,
2403 transport_endpoint_t * tep, u8 is_lcl)
2406 app_listener_t *app_listener;
2407 session_t *udp_listen_session;
2408 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2409 if (quic_ctx_is_listener (ctx))
2411 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2412 udp_listen_session = app_listener_get_session (app_listener);
2413 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2415 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2419 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2420 transport_endpoint_t * tep, u8 is_lcl)
2423 ctx = quic_ctx_get (ctx_index, thread_index);
2424 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2427 static session_cb_vft_t quic_app_cb_vft = {
2428 .session_accept_callback = quic_udp_session_accepted_callback,
2429 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2430 .session_connected_callback = quic_udp_session_connected_callback,
2431 .session_reset_callback = quic_udp_session_reset_callback,
2432 .session_migrate_callback = quic_udp_session_migrate_callback,
2433 .add_segment_callback = quic_add_segment_callback,
2434 .del_segment_callback = quic_del_segment_callback,
2435 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2436 .session_cleanup_callback = quic_udp_session_cleanup_callback,
2437 .app_cert_key_pair_delete_callback = quic_app_cert_key_pair_delete_callback,
2440 static const transport_proto_vft_t quic_proto = {
2441 .connect = quic_connect,
2442 .close = quic_proto_on_close,
2443 .start_listen = quic_start_listen,
2444 .stop_listen = quic_stop_listen,
2445 .get_connection = quic_connection_get,
2446 .get_listener = quic_listener_get,
2447 .update_time = quic_update_time,
2448 .app_rx_evt = quic_custom_app_rx_callback,
2449 .custom_tx = quic_custom_tx_callback,
2450 .format_connection = format_quic_connection,
2451 .format_half_open = format_quic_half_open,
2452 .format_listener = format_quic_listener,
2453 .get_transport_endpoint = quic_get_transport_endpoint,
2454 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2455 .transport_options = {
2458 .tx_type = TRANSPORT_TX_INTERNAL,
2459 .service_type = TRANSPORT_SERVICE_APP,
2463 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
2464 static quicly_closed_by_remote_t on_closed_by_remote = {
2465 quic_on_closed_by_remote
2467 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
2470 quic_register_cipher_suite (crypto_engine_type_t type,
2471 ptls_cipher_suite_t ** ciphers)
2473 quic_main_t *qm = &quic_main;
2474 vec_validate (qm->quic_ciphers, type);
2475 clib_bitmap_set (qm->available_crypto_engines, type, 1);
2476 qm->quic_ciphers[type] = ciphers;
2480 quic_update_fifo_size ()
2482 quic_main_t *qm = &quic_main;
2483 segment_manager_props_t *seg_mgr_props =
2484 application_get_segment_manager_properties (qm->app_index);
2489 ("error while getting segment_manager_props_t, can't update fifo-size");
2493 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2494 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2497 static clib_error_t *
2498 quic_init (vlib_main_t * vm)
2500 u32 segment_size = 256 << 20;
2501 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2502 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2503 vnet_app_attach_args_t _a, *a = &_a;
2504 u64 options[APP_OPTIONS_N_OPTIONS];
2505 quic_main_t *qm = &quic_main;
2509 if (syscall (SYS_getrandom, &seed, sizeof (seed), 0) != sizeof (seed))
2510 return clib_error_return_unix (0, "getrandom() failed");
2511 RAND_seed (seed, sizeof (seed));
2513 num_threads = 1 /* main thread */ + vtm->n_threads;
2515 clib_memset (a, 0, sizeof (*a));
2516 clib_memset (options, 0, sizeof (options));
2518 a->session_cb_vft = &quic_app_cb_vft;
2519 a->api_client_index = APP_INVALID_INDEX;
2520 a->options = options;
2521 a->name = format (0, "quic");
2522 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2523 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2524 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2525 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2526 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2527 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2528 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2529 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2531 if (vnet_application_attach (a))
2533 clib_warning ("failed to attach quic app");
2534 return clib_error_return (0, "failed to attach quic app");
2537 vec_validate (qm->ctx_pool, num_threads - 1);
2538 vec_validate (qm->wrk_ctx, num_threads - 1);
2540 for (i = 0; i < num_threads; i++)
2542 qm->wrk_ctx[i].next_cid.thread_id = i;
2543 tw = &qm->wrk_ctx[i].timer_wheel;
2544 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2545 1e-3 /* timer period 1ms */ , ~0);
2546 tw->last_run_time = vlib_time_now (vlib_get_main ());
2547 clib_bihash_init_24_8 (&qm->wrk_ctx[i].crypto_context_hash,
2548 "quic crypto contexts", 64, 128 << 10);
2551 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2554 qm->app_index = a->app_index;
2555 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2556 / QUIC_TSTAMP_RESOLUTION;
2557 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2559 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2560 FIB_PROTOCOL_IP4, ~0);
2561 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2562 FIB_PROTOCOL_IP6, ~0);
2564 quic_load_openssl3_legacy_provider ();
2565 clib_bitmap_alloc (qm->available_crypto_engines,
2566 app_crypto_engine_n_types ());
2567 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2568 ptls_openssl_cipher_suites);
2569 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2571 vnet_crypto_main_t *cm = &crypto_main;
2572 if (vec_len (cm->engines) == 0)
2573 qm->vnet_crypto_enabled = 0;
2575 qm->vnet_crypto_enabled = 1;
2576 if (qm->vnet_crypto_enabled == 1)
2578 u8 empty_key[32] = {};
2579 quic_register_cipher_suite (CRYPTO_ENGINE_VPP,
2580 quic_crypto_cipher_suites);
2581 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2582 vec_validate (qm->per_thread_crypto_key_indices, num_threads);
2583 for (i = 0; i < num_threads; i++)
2585 qm->per_thread_crypto_key_indices[i] = vnet_crypto_key_add (
2586 vm, VNET_CRYPTO_ALG_AES_256_CTR, empty_key, 32);
2590 qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY;
2591 qm->default_quic_cc = QUIC_CC_RENO;
2597 VLIB_INIT_FUNCTION (quic_init);
2599 static clib_error_t *
2600 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2601 unformat_input_t * input,
2602 vlib_cli_command_t * cmd)
2604 unformat_input_t _line_input, *line_input = &_line_input;
2605 quic_main_t *qm = &quic_main;
2606 clib_error_t *e = 0;
2608 if (!unformat_user (input, unformat_line_input, line_input))
2611 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2613 if (unformat (line_input, "vpp"))
2614 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2615 else if (unformat (line_input, "picotls"))
2616 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2619 e = clib_error_return (0, "unknown input '%U'",
2620 format_unformat_error, line_input);
2625 unformat_free (line_input);
2629 u64 quic_fifosize = 0;
2630 static clib_error_t *
2631 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2632 unformat_input_t * input,
2633 vlib_cli_command_t * cmd)
2635 quic_main_t *qm = &quic_main;
2636 unformat_input_t _line_input, *line_input = &_line_input;
2639 if (!unformat_user (input, unformat_line_input, line_input))
2642 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2644 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
2646 if (tmp >= 0x100000000ULL)
2648 return clib_error_return
2649 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2651 qm->udp_fifo_size = tmp;
2652 quic_update_fifo_size ();
2655 return clib_error_return (0, "unknown input '%U'",
2656 format_unformat_error, line_input);
2663 quic_get_counter_value (u32 event_code)
2667 vlib_error_main_t *em;
2672 vm = vlib_get_main ();
2673 em = &vm->error_main;
2674 n = vlib_get_node (vm, quic_input_node.index);
2676 foreach_vlib_main ()
2678 em = &this_vlib_main->error_main;
2679 i = n->error_heap_index + code;
2680 c = em->counters[i];
2682 if (i < vec_len (em->counters_last_clear))
2683 c -= em->counters_last_clear[i];
2690 quic_show_aggregated_stats (vlib_main_t * vm)
2692 u32 num_workers = vlib_num_workers ();
2693 quic_main_t *qm = &quic_main;
2694 quic_ctx_t *ctx = NULL;
2695 quicly_stats_t st, agg_stats;
2696 u32 i, nconn = 0, nstream = 0;
2698 clib_memset (&agg_stats, 0, sizeof (agg_stats));
2699 for (i = 0; i < num_workers + 1; i++)
2701 pool_foreach (ctx, qm->ctx_pool[i])
2703 if (quic_ctx_is_conn (ctx) && ctx->conn)
2705 quicly_get_stats (ctx->conn, &st);
2706 agg_stats.rtt.smoothed += st.rtt.smoothed;
2707 agg_stats.rtt.minimum += st.rtt.minimum;
2708 agg_stats.rtt.variance += st.rtt.variance;
2709 agg_stats.num_packets.received += st.num_packets.received;
2710 agg_stats.num_packets.sent += st.num_packets.sent;
2711 agg_stats.num_packets.lost += st.num_packets.lost;
2712 agg_stats.num_packets.ack_received += st.num_packets.ack_received;
2713 agg_stats.num_bytes.received += st.num_bytes.received;
2714 agg_stats.num_bytes.sent += st.num_bytes.sent;
2717 else if (quic_ctx_is_stream (ctx))
2721 vlib_cli_output (vm, "-------- Connections --------");
2722 vlib_cli_output (vm, "Current: %u", nconn);
2723 vlib_cli_output (vm, "Opened: %d",
2724 quic_get_counter_value (QUIC_ERROR_OPENED_CONNECTION));
2725 vlib_cli_output (vm, "Closed: %d",
2726 quic_get_counter_value (QUIC_ERROR_CLOSED_CONNECTION));
2727 vlib_cli_output (vm, "---------- Streams ----------");
2728 vlib_cli_output (vm, "Current: %u", nstream);
2729 vlib_cli_output (vm, "Opened: %d",
2730 quic_get_counter_value (QUIC_ERROR_OPENED_STREAM));
2731 vlib_cli_output (vm, "Closed: %d",
2732 quic_get_counter_value (QUIC_ERROR_CLOSED_STREAM));
2733 vlib_cli_output (vm, "---------- Packets ----------");
2734 vlib_cli_output (vm, "RX Total: %d",
2735 quic_get_counter_value (QUIC_ERROR_RX_PACKETS));
2736 vlib_cli_output (vm, "RX 0RTT: %d",
2737 quic_get_counter_value (QUIC_ERROR_ZERO_RTT_RX_PACKETS));
2738 vlib_cli_output (vm, "RX 1RTT: %d",
2739 quic_get_counter_value (QUIC_ERROR_ONE_RTT_RX_PACKETS));
2740 vlib_cli_output (vm, "TX Total: %d",
2741 quic_get_counter_value (QUIC_ERROR_TX_PACKETS));
2742 vlib_cli_output (vm, "----------- Stats -----------");
2743 vlib_cli_output (vm, "Min RTT %f",
2744 nconn > 0 ? agg_stats.rtt.minimum / nconn : 0);
2745 vlib_cli_output (vm, "Smoothed RTT %f",
2746 nconn > 0 ? agg_stats.rtt.smoothed / nconn : 0);
2747 vlib_cli_output (vm, "Variance on RTT %f",
2748 nconn > 0 ? agg_stats.rtt.variance / nconn : 0);
2749 vlib_cli_output (vm, "Packets Received %lu",
2750 agg_stats.num_packets.received);
2751 vlib_cli_output (vm, "Packets Sent %lu", agg_stats.num_packets.sent);
2752 vlib_cli_output (vm, "Packets Lost %lu", agg_stats.num_packets.lost);
2753 vlib_cli_output (vm, "Packets Acks %lu",
2754 agg_stats.num_packets.ack_received);
2755 vlib_cli_output (vm, "RX bytes %lu", agg_stats.num_bytes.received);
2756 vlib_cli_output (vm, "TX bytes %lu", agg_stats.num_bytes.sent);
2760 quic_format_quicly_conn_id (u8 * s, va_list * args)
2762 quicly_cid_plaintext_t *mid = va_arg (*args, quicly_cid_plaintext_t *);
2763 s = format (s, "C%x_%x", mid->master_id, mid->thread_id);
2768 quic_format_quicly_stream_id (u8 * s, va_list * args)
2770 quicly_stream_t *stream = va_arg (*args, quicly_stream_t *);
2772 format (s, "%U S%lx", quic_format_quicly_conn_id,
2773 quicly_get_master_id (stream->conn), stream->stream_id);
2778 quic_format_listener_ctx (u8 * s, va_list * args)
2780 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2781 s = format (s, "[#%d][%x][Listener]", ctx->c_thread_index, ctx->c_c_index);
2786 quic_format_connection_ctx (u8 * s, va_list * args)
2788 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2789 quicly_stats_t quicly_stats;
2791 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2795 s = format (s, "- no conn -\n");
2798 s = format (s, "[%U]",
2799 quic_format_quicly_conn_id, quicly_get_master_id (ctx->conn));
2800 quicly_get_stats (ctx->conn, &quicly_stats);
2802 s = format (s, "[RTT >%3d, ~%3d, V%3d, last %3d]",
2803 quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
2804 quicly_stats.rtt.variance, quicly_stats.rtt.latest);
2805 s = format (s, " TX:%d RX:%d loss:%d ack:%d",
2806 quicly_stats.num_packets.sent,
2807 quicly_stats.num_packets.received,
2808 quicly_stats.num_packets.lost,
2809 quicly_stats.num_packets.ack_received);
2811 format (s, "\ncwnd:%u ssthresh:%u recovery_end:%lu", quicly_stats.cc.cwnd,
2812 quicly_stats.cc.ssthresh, quicly_stats.cc.recovery_end);
2814 quicly_context_t *quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2815 if (quicly_ctx->init_cc == &quicly_cc_cubic_init)
2819 "\nk:%d w_max:%u w_last_max:%u avoidance_start:%ld last_sent_time:%ld",
2820 quicly_stats.cc.state.cubic.k, quicly_stats.cc.state.cubic.w_max,
2821 quicly_stats.cc.state.cubic.w_last_max,
2822 quicly_stats.cc.state.cubic.avoidance_start,
2823 quicly_stats.cc.state.cubic.last_sent_time);
2825 else if (quicly_ctx->init_cc == &quicly_cc_reno_init)
2827 s = format (s, " stash:%u", quicly_stats.cc.state.reno.stash);
2834 quic_format_stream_ctx (u8 * s, va_list * args)
2836 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2837 session_t *stream_session;
2838 quicly_stream_t *stream = ctx->stream;
2841 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2842 s = format (s, "[%U]", quic_format_quicly_stream_id, stream);
2844 stream_session = session_get_if_valid (ctx->c_s_index, ctx->c_thread_index);
2845 if (!stream_session)
2847 s = format (s, "- no session -\n");
2850 txs = svm_fifo_max_dequeue (stream_session->tx_fifo);
2851 rxs = svm_fifo_max_dequeue (stream_session->rx_fifo);
2852 s = format (s, "[rx %d tx %d]\n", rxs, txs);
2856 static clib_error_t *
2857 quic_show_connections_command_fn (vlib_main_t * vm,
2858 unformat_input_t * input,
2859 vlib_cli_command_t * cmd)
2861 unformat_input_t _line_input, *line_input = &_line_input;
2862 u8 show_listeners = 0, show_conn = 0, show_stream = 0;
2863 u32 num_workers = vlib_num_workers ();
2864 quic_main_t *qm = &quic_main;
2865 clib_error_t *error = 0;
2866 quic_ctx_t *ctx = NULL;
2868 session_cli_return_if_not_enabled ();
2870 if (!unformat_user (input, unformat_line_input, line_input))
2872 quic_show_aggregated_stats (vm);
2876 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2878 if (unformat (line_input, "listener"))
2880 else if (unformat (line_input, "conn"))
2882 else if (unformat (line_input, "stream"))
2886 error = clib_error_return (0, "unknown input `%U'",
2887 format_unformat_error, line_input);
2892 for (int i = 0; i < num_workers + 1; i++)
2894 pool_foreach (ctx, qm->ctx_pool[i])
2896 if (quic_ctx_is_stream (ctx) && show_stream)
2897 vlib_cli_output (vm, "%U", quic_format_stream_ctx, ctx);
2898 else if (quic_ctx_is_listener (ctx) && show_listeners)
2899 vlib_cli_output (vm, "%U", quic_format_listener_ctx, ctx);
2900 else if (quic_ctx_is_conn (ctx) && show_conn)
2901 vlib_cli_output (vm, "%U", quic_format_connection_ctx, ctx);
2906 unformat_free (line_input);
2910 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) = {
2911 .path = "quic set crypto api",
2912 .short_help = "quic set crypto api [picotls|vpp]",
2913 .function = quic_plugin_crypto_command_fn,
2915 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2917 .path = "quic set fifo-size",
2918 .short_help = "quic set fifo-size N[K|M|G] (default 64K)",
2919 .function = quic_plugin_set_fifo_size_command_fn,
2921 VLIB_CLI_COMMAND(quic_show_ctx_command, static)=
2923 .path = "show quic",
2924 .short_help = "show quic",
2925 .function = quic_show_connections_command_fn,
2927 VLIB_CLI_COMMAND (quic_list_crypto_context_command, static) =
2929 .path = "show quic crypto context",
2930 .short_help = "list quic crypto contextes",
2931 .function = quic_list_crypto_context_command_fn,
2933 VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) =
2935 .path = "set quic max_packets_per_key",
2936 .short_help = "set quic max_packets_per_key 16777216",
2937 .function = quic_set_max_packets_per_key_fn,
2939 VLIB_CLI_COMMAND (quic_set_cc, static) = {
2940 .path = "set quic cc",
2941 .short_help = "set quic cc [reno|cubic]",
2942 .function = quic_set_cc_fn,
2944 VLIB_PLUGIN_REGISTER () =
2946 .version = VPP_BUILD_VER,
2947 .description = "Quic transport protocol",
2948 .default_disabled = 1,
2951 static clib_error_t *
2952 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2954 unformat_input_t _line_input, *line_input = &_line_input;
2955 quic_main_t *qm = &quic_main;
2956 clib_error_t *error = 0;
2960 qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2961 qm->udp_fifo_prealloc = 0;
2962 qm->connection_timeout = QUIC_DEFAULT_CONN_TIMEOUT;
2964 if (!unformat_user (input, unformat_line_input, line_input))
2967 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2969 if (unformat (line_input, "fifo-size %U", unformat_memory_size, &tmp))
2971 if (tmp >= 0x100000000ULL)
2973 error = clib_error_return (0,
2974 "fifo-size %llu (0x%llx) too large",
2978 qm->udp_fifo_size = tmp;
2980 else if (unformat (line_input, "conn-timeout %u", &i))
2981 qm->connection_timeout = i;
2982 else if (unformat (line_input, "fifo-prealloc %u", &i))
2983 qm->udp_fifo_prealloc = i;
2986 error = clib_error_return (0, "unknown input '%U'",
2987 format_unformat_error, line_input);
2992 unformat_free (line_input);
2996 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
2999 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
3000 vlib_frame_t * frame)
3005 VLIB_REGISTER_NODE (quic_input_node) =
3007 .function = quic_node_fn,
3008 .name = "quic-input",
3009 .vector_size = sizeof (u32),
3010 .type = VLIB_NODE_TYPE_INTERNAL,
3011 .n_errors = ARRAY_LEN (quic_error_strings),
3012 .error_strings = quic_error_strings,
3016 * fd.io coding-style-patch-verification: ON
3019 * eval: (c-set-style "gnu")