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>
18 #include <vnet/session/application.h>
19 #include <vnet/session/transport.h>
20 #include <vnet/session/session.h>
21 #include <vlib/unix/plugin.h>
22 #include <vpp/app/version.h>
24 #include <vppinfra/lock.h>
26 #include <quic/quic.h>
27 #include <quic/certs.h>
28 #include <quic/error.h>
30 #include <quicly/constants.h>
31 #include <quicly/defaults.h>
34 #include <quic/quic_crypto.h>
36 extern quicly_crypto_engine_t quic_crypto_engine;
38 static char *quic_error_strings[] = {
39 #define quic_error(n,s) s,
40 #include <quic/quic_error.def>
44 #define DEFAULT_MAX_PACKETS_PER_KEY 16777216
46 quic_main_t quic_main;
47 static void quic_update_timer (quic_ctx_t * ctx);
48 static void quic_check_quic_session_connected (quic_ctx_t * ctx);
49 static int quic_reset_connection (u64 udp_session_handle,
50 quic_rx_packet_ctx_t * pctx);
51 static void quic_proto_on_close (u32 ctx_index, u32 thread_index);
53 static quicly_stream_open_t on_stream_open;
54 static quicly_closed_by_remote_t on_closed_by_remote;
55 static quicly_now_t quicly_vpp_now_cb;
60 quic_crypto_context_make_key_from_ctx (clib_bihash_kv_24_8_t * kv,
63 application_t *app = application_get (ctx->parent_app_id);
64 kv->key[0] = ((u64) ctx->ckpair_index) << 32 | (u64) ctx->crypto_engine;
65 kv->key[1] = app->sm_properties.rx_fifo_size - 1;
66 kv->key[2] = app->sm_properties.tx_fifo_size - 1;
70 quic_crypto_context_make_key_from_crctx (clib_bihash_kv_24_8_t * kv,
71 crypto_context_t * crctx)
73 quic_crypto_context_data_t *data =
74 (quic_crypto_context_data_t *) crctx->data;
75 kv->key[0] = ((u64) crctx->ckpair_index) << 32 | (u64) crctx->crypto_engine;
76 kv->key[1] = data->quicly_ctx.transport_params.max_stream_data.bidi_local;
77 kv->key[2] = data->quicly_ctx.transport_params.max_stream_data.bidi_remote;
81 quic_crypto_context_free_if_needed (crypto_context_t * crctx, u8 thread_index)
83 quic_main_t *qm = &quic_main;
84 clib_bihash_kv_24_8_t kv;
85 if (crctx->n_subscribers)
87 quic_crypto_context_make_key_from_crctx (&kv, crctx);
88 clib_bihash_add_del_24_8 (&qm->wrk_ctx[thread_index].crypto_context_hash,
89 &kv, 0 /* is_add */ );
90 clib_mem_free (crctx->data);
91 pool_put (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
95 quic_app_cert_key_pair_delete_callback (app_cert_key_pair_t * ckpair)
97 quic_main_t *qm = &quic_main;
98 crypto_context_t *crctx;
99 clib_bihash_kv_24_8_t kv;
100 vlib_thread_main_t *vtm = vlib_get_thread_main ();
101 int num_threads = 1 /* main thread */ + vtm->n_threads;
104 for (i = 0; i < num_threads; i++)
107 pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool) {
108 if (crctx->ckpair_index == ckpair->cert_key_index)
110 quic_crypto_context_make_key_from_crctx (&kv, crctx);
111 clib_bihash_add_del_24_8 (&qm->wrk_ctx[i].crypto_context_hash, &kv, 0 /* is_add */ );
119 static crypto_context_t *
120 quic_crypto_context_alloc (u8 thread_index)
122 quic_main_t *qm = &quic_main;
123 crypto_context_t *crctx;
126 pool_get (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
127 clib_memset (crctx, 0, sizeof (*crctx));
128 idx = (crctx - qm->wrk_ctx[thread_index].crypto_ctx_pool);
129 crctx->ctx_index = ((u32) thread_index) << 24 | idx;
134 static crypto_context_t *
135 quic_crypto_context_get (u32 cr_index, u32 thread_index)
137 quic_main_t *qm = &quic_main;
138 ASSERT (cr_index >> 24 == thread_index);
139 return pool_elt_at_index (qm->wrk_ctx[thread_index].crypto_ctx_pool,
140 cr_index & 0x00ffffff);
143 static clib_error_t *
144 quic_list_crypto_context_command_fn (vlib_main_t * vm,
145 unformat_input_t * input,
146 vlib_cli_command_t * cmd)
148 quic_main_t *qm = &quic_main;
149 crypto_context_t *crctx;
150 vlib_thread_main_t *vtm = vlib_get_thread_main ();
151 int i, num_threads = 1 /* main thread */ + vtm->n_threads;
152 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);
163 static clib_error_t *
164 quic_set_max_packets_per_key_fn (vlib_main_t * vm,
165 unformat_input_t * input,
166 vlib_cli_command_t * cmd)
168 quic_main_t *qm = &quic_main;
169 unformat_input_t _line_input, *line_input = &_line_input;
172 if (!unformat_user (input, unformat_line_input, line_input))
175 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
177 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
179 qm->max_packets_per_key = tmp;
182 return clib_error_return (0, "unknown input '%U'",
183 format_unformat_error, line_input);
189 static clib_error_t *
190 quic_set_cc_fn (vlib_main_t *vm, unformat_input_t *input,
191 vlib_cli_command_t *cmd)
193 unformat_input_t _line_input, *line_input = &_line_input;
194 quic_main_t *qm = &quic_main;
197 if (!unformat_user (input, unformat_line_input, line_input))
200 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
202 if (unformat (line_input, "reno"))
203 qm->default_quic_cc = QUIC_CC_RENO;
204 else if (unformat (line_input, "cubic"))
205 qm->default_quic_cc = QUIC_CC_CUBIC;
208 e = clib_error_return (0, "unknown input '%U'",
209 format_unformat_error, line_input);
214 unformat_free (line_input);
219 quic_release_crypto_context (u32 crypto_context_index, u8 thread_index)
221 crypto_context_t *crctx;
222 crctx = quic_crypto_context_get (crypto_context_index, thread_index);
223 crctx->n_subscribers--;
224 quic_crypto_context_free_if_needed (crctx, thread_index);
228 quic_init_crypto_context (crypto_context_t * crctx, quic_ctx_t * ctx)
230 quic_main_t *qm = &quic_main;
231 quicly_context_t *quicly_ctx;
232 ptls_iovec_t key_vec;
233 app_cert_key_pair_t *ckpair;
235 quic_crypto_context_data_t *data;
236 ptls_context_t *ptls_ctx;
238 QUIC_DBG (2, "Init quic crctx %d thread %d", crctx->ctx_index,
239 ctx->c_thread_index);
241 data = clib_mem_alloc (sizeof (*data));
242 /* picotls depends on data being zeroed */
243 clib_memset (data, 0, sizeof (*data));
244 crctx->data = (void *) data;
245 quicly_ctx = &data->quicly_ctx;
246 ptls_ctx = &data->ptls_ctx;
248 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
249 ptls_ctx->get_time = &ptls_get_time;
250 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
251 ptls_ctx->cipher_suites = qm->quic_ciphers[ctx->crypto_engine];
252 ptls_ctx->certificates.list = NULL;
253 ptls_ctx->certificates.count = 0;
254 ptls_ctx->esni = NULL;
255 ptls_ctx->on_client_hello = NULL;
256 ptls_ctx->emit_certificate = NULL;
257 ptls_ctx->sign_certificate = NULL;
258 ptls_ctx->verify_certificate = NULL;
259 ptls_ctx->ticket_lifetime = 86400;
260 ptls_ctx->max_early_data_size = 8192;
261 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
262 ptls_ctx->require_dhe_on_psk = 1;
263 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
264 clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
266 quicly_ctx->max_packets_per_key = qm->max_packets_per_key;
267 quicly_ctx->tls = ptls_ctx;
268 quicly_ctx->stream_open = &on_stream_open;
269 quicly_ctx->closed_by_remote = &on_closed_by_remote;
270 quicly_ctx->now = &quicly_vpp_now_cb;
271 quicly_amend_ptls_context (quicly_ctx->tls);
273 if (qm->vnet_crypto_enabled &&
274 qm->default_crypto_engine == CRYPTO_ENGINE_VPP)
275 quicly_ctx->crypto_engine = &quic_crypto_engine;
277 quicly_ctx->crypto_engine = &quicly_default_crypto_engine;
279 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
280 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
281 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
282 quicly_ctx->transport_params.max_idle_timeout = qm->connection_timeout;
284 if (qm->default_quic_cc == QUIC_CC_CUBIC)
285 quicly_ctx->init_cc = &quicly_cc_cubic_init;
286 else if (qm->default_quic_cc == QUIC_CC_RENO)
287 quicly_ctx->init_cc = &quicly_cc_reno_init;
289 app = application_get (ctx->parent_app_id);
290 quicly_ctx->transport_params.max_stream_data.bidi_local =
291 app->sm_properties.rx_fifo_size - 1;
292 quicly_ctx->transport_params.max_stream_data.bidi_remote =
293 app->sm_properties.tx_fifo_size - 1;
294 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
296 quicly_ctx->transport_params.max_udp_payload_size = QUIC_MAX_PACKET_SIZE;
297 if (!app->quic_iv_set)
299 ptls_openssl_random_bytes (app->quic_iv, QUIC_IV_LEN - 1);
300 app->quic_iv[QUIC_IV_LEN - 1] = 0;
301 app->quic_iv_set = 1;
304 clib_memcpy (data->cid_key, app->quic_iv, QUIC_IV_LEN);
305 key_vec = ptls_iovec_init (data->cid_key, QUIC_IV_LEN);
306 quicly_ctx->cid_encryptor =
307 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
308 &ptls_openssl_aes128ecb,
309 &ptls_openssl_sha256, key_vec);
311 ckpair = app_cert_key_pair_get_if_valid (crctx->ckpair_index);
312 if (!ckpair || !ckpair->key || !ckpair->cert)
314 QUIC_DBG (1, "Wrong ckpair id %d\n", crctx->ckpair_index);
317 if (load_bio_private_key (quicly_ctx->tls, (char *) ckpair->key))
319 QUIC_DBG (1, "failed to read private key from app configuration\n");
322 if (load_bio_certificate_chain (quicly_ctx->tls, (char *) ckpair->cert))
324 QUIC_DBG (1, "failed to load certificate\n");
332 quic_acquire_crypto_context (quic_ctx_t * ctx)
334 quic_main_t *qm = &quic_main;
335 crypto_context_t *crctx;
336 clib_bihash_kv_24_8_t kv;
338 if (ctx->crypto_engine == CRYPTO_ENGINE_NONE)
340 QUIC_DBG (2, "No crypto engine specified, using %d",
341 qm->default_crypto_engine);
342 ctx->crypto_engine = qm->default_crypto_engine;
344 if (!clib_bitmap_get (qm->available_crypto_engines, ctx->crypto_engine))
346 QUIC_DBG (1, "Quic does not support crypto engine %d",
348 return SESSION_E_NOCRYPTOENG;
351 /* Check for exisiting crypto ctx */
352 quic_crypto_context_make_key_from_ctx (&kv, ctx);
353 if (clib_bihash_search_24_8
354 (&qm->wrk_ctx[ctx->c_thread_index].crypto_context_hash, &kv, &kv) == 0)
356 crctx = quic_crypto_context_get (kv.value, ctx->c_thread_index);
357 QUIC_DBG (2, "Found exisiting crypto context %d", kv.value);
358 ctx->crypto_context_index = kv.value;
359 crctx->n_subscribers++;
363 crctx = quic_crypto_context_alloc (ctx->c_thread_index);
364 ctx->crypto_context_index = crctx->ctx_index;
365 kv.value = crctx->ctx_index;
366 crctx->crypto_engine = ctx->crypto_engine;
367 crctx->ckpair_index = ctx->ckpair_index;
368 if (quic_init_crypto_context (crctx, ctx))
370 if (vnet_app_add_cert_key_interest (ctx->ckpair_index, qm->app_index))
372 crctx->n_subscribers++;
373 clib_bihash_add_del_24_8 (&qm->
374 wrk_ctx[ctx->c_thread_index].crypto_context_hash,
375 &kv, 1 /* is_add */ );
379 quic_crypto_context_free_if_needed (crctx, ctx->c_thread_index);
380 return SESSION_E_NOCRYPTOCKP;
383 /* Helper functions */
386 quic_ctx_alloc (u32 thread_index)
388 quic_main_t *qm = &quic_main;
391 pool_get_aligned_safe (qm->ctx_pool[thread_index], ctx,
392 CLIB_CACHE_LINE_BYTES);
394 clib_memset (ctx, 0, sizeof (quic_ctx_t));
395 ctx->c_thread_index = thread_index;
396 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
397 QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
398 ctx - qm->ctx_pool[thread_index], thread_index);
399 return ctx - qm->ctx_pool[thread_index];
403 quic_ctx_free (quic_ctx_t * ctx)
405 QUIC_DBG (2, "Free ctx %u %x", ctx->c_thread_index, ctx->c_c_index);
406 u32 thread_index = ctx->c_thread_index;
407 QUIC_ASSERT (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID);
409 clib_memset (ctx, 0xfb, sizeof (*ctx));
410 pool_put (quic_main.ctx_pool[thread_index], ctx);
414 quic_ctx_get (u32 ctx_index, u32 thread_index)
416 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
420 quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
422 if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
424 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
428 quic_get_conn_ctx (quicly_conn_t * conn)
431 conn_data = (u64) * quicly_get_data (conn);
432 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
436 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
438 *quicly_get_data (conn) =
439 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
443 quic_ctx_is_stream (quic_ctx_t * ctx)
445 return (ctx->flags & QUIC_F_IS_STREAM);
449 quic_ctx_is_listener (quic_ctx_t * ctx)
451 return (ctx->flags & QUIC_F_IS_LISTENER);
455 quic_ctx_is_conn (quic_ctx_t * ctx)
457 return !(quic_ctx_is_listener (ctx) || quic_ctx_is_stream (ctx));
460 static inline session_t *
461 get_stream_session_and_ctx_from_stream (quicly_stream_t * stream,
464 quic_stream_data_t *stream_data;
466 stream_data = (quic_stream_data_t *) stream->data;
467 *ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
468 return session_get ((*ctx)->c_s_index, stream_data->thread_index);
472 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
473 const quicly_cid_plaintext_t * id)
475 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
476 kv->key[1] = id->node_id;
480 quic_sendable_packet_count (session_t * udp_session)
483 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
484 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
485 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
488 static quicly_context_t *
489 quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
491 crypto_context_t *crctx =
492 quic_crypto_context_get (ctx->crypto_context_index, ctx->c_thread_index);
493 quic_crypto_context_data_t *data =
494 (quic_crypto_context_data_t *) crctx->data;
495 return &data->quicly_ctx;
498 static quicly_context_t *
499 quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
501 session_t *udp_session = session_get_from_handle (udp_session_handle);
503 quic_ctx_get (udp_session->opaque, udp_session->thread_index);
504 return quic_get_quicly_ctx_from_ctx (ctx);
508 quic_set_udp_tx_evt (session_t * udp_session)
511 if (svm_fifo_set_event (udp_session->tx_fifo))
512 rv = session_send_io_evt_to_thread (udp_session->tx_fifo,
514 if (PREDICT_FALSE (rv))
515 clib_warning ("Event enqueue errored %d", rv);
519 quic_stop_ctx_timer (quic_ctx_t * ctx)
521 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
522 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
524 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
525 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
526 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
527 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
530 /* QUIC protocol actions */
533 quic_ack_rx_data (session_t * stream_session)
538 quicly_stream_t *stream;
539 quic_stream_data_t *stream_data;
541 sctx = quic_ctx_get (stream_session->connection_index,
542 stream_session->thread_index);
543 QUIC_ASSERT (quic_ctx_is_stream (sctx));
544 stream = sctx->stream;
545 stream_data = (quic_stream_data_t *) stream->data;
547 f = stream_session->rx_fifo;
548 max_deq = svm_fifo_max_dequeue (f);
550 QUIC_ASSERT (stream_data->app_rx_data_len >= max_deq);
551 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
552 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
553 stream_data->app_rx_data_len = max_deq;
557 quic_disconnect_transport (quic_ctx_t * ctx)
559 QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
560 vnet_disconnect_args_t a = {
561 .handle = ctx->udp_session_handle,
562 .app_index = quic_main.app_index,
565 if (vnet_disconnect_session (&a))
566 clib_warning ("UDP session 0x%lx disconnect errored",
567 ctx->udp_session_handle);
571 quic_connection_delete (quic_ctx_t * ctx)
573 clib_bihash_kv_16_8_t kv;
576 if (ctx->conn == NULL)
578 QUIC_DBG (2, "Skipping redundant delete of connection %u",
582 QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
584 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
585 quic_stop_ctx_timer (ctx);
587 /* Delete the connection from the connection map */
590 quic_make_connection_key (&kv, quicly_get_master_id (conn));
591 QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
593 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
595 quic_disconnect_transport (ctx);
599 session_transport_delete_notify (&ctx->connection);
603 quic_increment_counter (u8 evt, u8 val)
605 vlib_main_t *vm = vlib_get_main ();
606 vlib_node_increment_counter (vm, quic_input_node.index, evt, val);
610 * Called when quicly return an error
611 * This function interacts tightly with quic_proto_on_close
614 quic_connection_closed (quic_ctx_t * ctx)
616 QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
619 /* TODO if connection is not established, just delete the session? */
620 /* Actually should send connect or accept error */
622 switch (ctx->conn_state)
624 case QUIC_CONN_STATE_READY:
625 /* Error on an opened connection (timeout...)
626 This puts the session in closing state, we should receive a notification
627 when the app has closed its session */
628 session_transport_reset_notify (&ctx->connection);
629 /* This ensures we delete the connection when the app confirms the close */
630 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
632 case QUIC_CONN_STATE_PASSIVE_CLOSING:
633 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
634 /* quic_proto_on_close will eventually be called when the app confirms the close
635 , we delete the connection at that point */
637 case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
638 /* App already confirmed close, we can delete the connection */
639 quic_connection_delete (ctx);
641 case QUIC_CONN_STATE_OPENED:
642 case QUIC_CONN_STATE_HANDSHAKE:
643 case QUIC_CONN_STATE_ACTIVE_CLOSING:
644 quic_connection_delete (ctx);
647 QUIC_DBG (0, "BUG %d", ctx->conn_state);
653 quic_send_datagram (session_t *udp_session, struct iovec *packet,
654 quicly_address_t *dest, quicly_address_t *src)
656 u32 max_enqueue, len;
657 session_dgram_hdr_t hdr;
659 transport_connection_t *tc;
662 len = packet->iov_len;
663 f = udp_session->tx_fifo;
664 tc = session_get_transport (udp_session);
665 max_enqueue = svm_fifo_max_enqueue (f);
666 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
668 QUIC_ERR ("Too much data to send, max_enqueue %u, len %u",
669 max_enqueue, len + SESSION_CONN_HDR_LEN);
670 return QUIC_ERROR_FULL_FIFO;
673 /* Build packet header for fifo */
674 hdr.data_length = len;
676 hdr.is_ip4 = tc->is_ip4;
677 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
678 hdr.lcl_port = tc->lcl_port;
681 /* Read dest address from quicly-provided sockaddr */
684 QUIC_ASSERT (dest->sa.sa_family == AF_INET);
685 struct sockaddr_in *sa4 = (struct sockaddr_in *) &dest->sa;
686 hdr.rmt_port = sa4->sin_port;
687 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
691 QUIC_ASSERT (dest->sa.sa_family == AF_INET6);
692 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &dest->sa;
693 hdr.rmt_port = sa6->sin6_port;
694 clib_memcpy_fast (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
697 svm_fifo_seg_t segs[2] = { { (u8 *) &hdr, sizeof (hdr) },
698 { packet->iov_base, len } };
700 ret = svm_fifo_enqueue_segments (f, segs, 2, 0 /* allow partial */);
701 if (PREDICT_FALSE (ret < 0))
703 QUIC_ERR ("Not enough space to enqueue dgram");
704 return QUIC_ERROR_FULL_FIFO;
707 quic_increment_counter (QUIC_ERROR_TX_PACKETS, 1);
713 quic_send_packets (quic_ctx_t * ctx)
715 struct iovec packets[QUIC_SEND_PACKET_VEC_SIZE];
717 buf[QUIC_SEND_PACKET_VEC_SIZE * quic_get_quicly_ctx_from_ctx (ctx)
718 ->transport_params.max_udp_payload_size];
719 session_t *udp_session;
721 size_t num_packets, i, max_packets;
722 quicly_address_t dest, src;
726 /* We have sctx, get qctx */
727 if (quic_ctx_is_stream (ctx))
728 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
730 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
732 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
742 /* TODO : quicly can assert it can send min_packets up to 2 */
743 max_packets = quic_sendable_packet_count (udp_session);
747 num_packets = max_packets;
748 if ((err = quicly_send (conn, &dest, &src, packets, &num_packets, buf,
752 for (i = 0; i != num_packets; ++i)
756 quic_send_datagram (udp_session, &packets[i], &dest, &src)))
760 n_sent += num_packets;
762 while (num_packets > 0 && num_packets == max_packets);
764 quic_set_udp_tx_evt (udp_session);
766 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
767 svm_fifo_max_dequeue (udp_session->rx_fifo));
768 quic_update_timer (ctx);
772 if (err && err != QUICLY_ERROR_PACKET_IGNORED
773 && err != QUICLY_ERROR_FREE_CONNECTION)
774 clib_warning ("Quic error '%U'.", quic_format_err, err);
775 quic_connection_closed (ctx);
779 /* Quicly callbacks */
782 quic_on_stream_destroy (quicly_stream_t * stream, int err)
784 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
785 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
786 stream_data->thread_index);
787 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
788 session_handle (stream_session), quic_format_err, err);
790 session_transport_closing_notify (&sctx->connection);
791 session_transport_delete_notify (&sctx->connection);
793 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
794 quic_ctx_free (sctx);
795 clib_mem_free (stream->data);
799 quic_on_stop_sending (quicly_stream_t * stream, int err)
802 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
803 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
804 stream_data->thread_index);
805 session_t *stream_session = session_get (sctx->c_s_index,
806 sctx->c_thread_index);
807 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
808 session_handle (stream_session), quic_format_err, err);
810 /* TODO : handle STOP_SENDING */
814 quic_on_receive_reset (quicly_stream_t * stream, int err)
816 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
817 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
818 stream_data->thread_index);
820 session_t *stream_session = session_get (sctx->c_s_index,
821 sctx->c_thread_index);
822 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
823 session_handle (stream_session), quic_format_err, err);
825 session_transport_closing_notify (&sctx->connection);
829 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
832 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
835 session_t *stream_session;
836 app_worker_t *app_wrk;
838 quic_stream_data_t *stream_data;
844 stream_data = (quic_stream_data_t *) stream->data;
845 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
846 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
847 f = stream_session->rx_fifo;
849 max_enq = svm_fifo_max_enqueue_prod (f);
850 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
851 /* Handle duplicate packet/chunk from quicly */
852 if (off < stream_data->app_rx_data_len)
854 QUIC_DBG (3, "Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
855 "DUPLICATE PACKET (max_enq %u, len %u, "
856 "app_rx_data_len %u, off %u, ToBeNQ %u)",
857 stream_session->session_index,
858 stream_session->app_wrk_index,
859 stream_session->thread_index, f,
860 max_enq, len, stream_data->app_rx_data_len, off,
861 off - stream_data->app_rx_data_len + len);
864 if (PREDICT_FALSE ((off - stream_data->app_rx_data_len + len) > max_enq))
866 QUIC_ERR ("Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
867 "RX FIFO IS FULL (max_enq %u, len %u, "
868 "app_rx_data_len %u, off %u, ToBeNQ %u)",
869 stream_session->session_index,
870 stream_session->app_wrk_index,
871 stream_session->thread_index, f,
872 max_enq, len, stream_data->app_rx_data_len, off,
873 off - stream_data->app_rx_data_len + len);
874 return; /* This shouldn't happen */
876 if (off == stream_data->app_rx_data_len)
878 /* Streams live on the same thread so (f, stream_data) should stay consistent */
879 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
880 if (PREDICT_FALSE (rlen < 0))
888 QUIC_DBG (3, "Session [idx %u, app_wrk %u, ti %u, rx-fifo 0x%llx]: "
889 "Enqueuing %u (rlen %u) at off %u in %u space, ",
890 stream_session->session_index,
891 stream_session->app_wrk_index,
892 stream_session->thread_index, f, len, rlen, off, max_enq);
893 stream_data->app_rx_data_len += rlen;
894 QUIC_ASSERT (rlen >= len);
895 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
896 if (PREDICT_TRUE (app_wrk != 0))
898 app_worker_rx_notify (app_wrk, stream_session);
900 quic_ack_rx_data (stream_session);
904 rlen = svm_fifo_enqueue_with_offset (f,
905 off - stream_data->app_rx_data_len,
907 if (PREDICT_FALSE (rlen < 0))
915 QUIC_ASSERT (rlen == 0);
921 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
923 quic_stream_data_t *stream_data;
924 session_t *stream_session;
929 stream_data = (quic_stream_data_t *) stream->data;
930 stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
931 f = stream_session->tx_fifo;
933 QUIC_ASSERT (stream_data->app_tx_data_len >= delta);
934 stream_data->app_tx_data_len -= delta;
935 ctx->bytes_written += delta;
936 rv = svm_fifo_dequeue_drop (f, delta);
937 QUIC_ASSERT (rv == delta);
939 rv = quicly_stream_sync_sendbuf (stream, 0);
944 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
945 size_t * len, int *wrote_all)
947 quic_stream_data_t *stream_data;
949 session_t *stream_session;
953 stream_data = (quic_stream_data_t *) stream->data;
954 stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
955 f = stream_session->tx_fifo;
957 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
959 deq_max = svm_fifo_max_dequeue_cons (f);
960 QUIC_ASSERT (off <= deq_max);
961 if (off + *len < deq_max)
968 *len = deq_max - off;
970 QUIC_ASSERT (*len > 0);
972 if (off + *len > stream_data->app_tx_data_len)
973 stream_data->app_tx_data_len = off + *len;
975 svm_fifo_peek (f, off, *len, dst);
978 static const quicly_stream_callbacks_t quic_stream_callbacks = {
979 .on_destroy = quic_on_stream_destroy,
980 .on_send_shift = quic_fifo_egress_shift,
981 .on_send_emit = quic_fifo_egress_emit,
982 .on_send_stop = quic_on_stop_sending,
983 .on_receive = quic_on_receive,
984 .on_receive_reset = quic_on_receive_reset
988 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
990 /* Return code for this function ends either
991 * - in quicly_receive : if not QUICLY_ERROR_PACKET_IGNORED, will close connection
992 * - in quicly_open_stream, returned directly
995 session_t *stream_session, *quic_session;
996 quic_stream_data_t *stream_data;
997 app_worker_t *app_wrk;
998 quic_ctx_t *qctx, *sctx;
1002 QUIC_DBG (2, "on_stream_open called");
1003 stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
1004 stream->callbacks = &quic_stream_callbacks;
1005 /* Notify accept on parent qsession, but only if this is not a locally
1006 * initiated stream */
1007 if (quicly_stream_is_self_initiated (stream))
1010 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
1011 qctx = quic_get_conn_ctx (stream->conn);
1013 /* Might need to signal that the connection is ready if the first thing the
1014 * server does is open a stream */
1015 quic_check_quic_session_connected (qctx);
1016 /* ctx might be invalidated */
1017 qctx = quic_get_conn_ctx (stream->conn);
1019 stream_session = session_alloc (qctx->c_thread_index);
1020 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
1021 session_handle (stream_session), sctx_id);
1022 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
1023 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1024 sctx->parent_app_id = qctx->parent_app_id;
1025 sctx->quic_connection_ctx_id = qctx->c_c_index;
1026 sctx->c_c_index = sctx_id;
1027 sctx->c_s_index = stream_session->session_index;
1028 sctx->stream = stream;
1029 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1030 sctx->flags |= QUIC_F_IS_STREAM;
1031 sctx->crypto_context_index = qctx->crypto_context_index;
1032 if (quicly_stream_is_unidirectional (stream->stream_id))
1033 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1035 stream_data = (quic_stream_data_t *) stream->data;
1036 stream_data->ctx_id = sctx_id;
1037 stream_data->thread_index = sctx->c_thread_index;
1038 stream_data->app_rx_data_len = 0;
1039 stream_data->app_tx_data_len = 0;
1041 sctx->c_s_index = stream_session->session_index;
1042 stream_session->session_state = SESSION_STATE_CREATED;
1043 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
1044 stream_session->connection_index = sctx->c_c_index;
1045 stream_session->session_type =
1046 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1047 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
1048 /* Make sure quic session is in listening state */
1049 quic_session->session_state = SESSION_STATE_LISTENING;
1050 stream_session->listener_handle = listen_session_get_handle (quic_session);
1052 app_wrk = app_worker_get (stream_session->app_wrk_index);
1053 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1055 QUIC_ERR ("failed to allocate fifos");
1056 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1057 return 0; /* Frame is still valid */
1059 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1060 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1061 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1063 stream_session->session_state = SESSION_STATE_ACCEPTING;
1064 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
1066 QUIC_ERR ("failed to notify accept worker app");
1067 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
1068 return 0; /* Frame is still valid */
1075 quic_on_closed_by_remote (quicly_closed_by_remote_t *self, quicly_conn_t *conn,
1076 int code, uint64_t frame_type, const char *reason,
1079 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
1081 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1082 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
1083 session_handle (quic_session), quic_format_err, code,
1084 reason_len, reason);
1086 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
1087 session_transport_closing_notify (&ctx->connection);
1090 /* Timer handling */
1093 quic_get_thread_time (u8 thread_index)
1095 return quic_main.wrk_ctx[thread_index].time_now;
1099 quic_get_time (quicly_now_t * self)
1101 u8 thread_index = vlib_get_thread_index ();
1102 return quic_get_thread_time (thread_index);
1106 quic_set_time_now (u32 thread_index)
1108 vlib_main_t *vlib_main = vlib_get_main ();
1109 f64 time = vlib_time_now (vlib_main);
1110 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1111 return quic_main.wrk_ctx[thread_index].time_now;
1114 /* Transport proto callback */
1116 quic_update_time (f64 now, u8 thread_index)
1118 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1120 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1121 quic_set_time_now (thread_index);
1122 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1126 quic_timer_expired (u32 conn_index)
1129 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1130 quic_get_time (NULL));
1131 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1132 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1133 quic_send_packets (ctx);
1137 quic_update_timer (quic_ctx_t * ctx)
1139 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1140 int64_t next_timeout, next_interval;
1141 session_t *quic_session;
1144 /* This timeout is in ms which is the unit of our timer */
1145 next_timeout = quicly_get_first_timeout (ctx->conn);
1146 next_interval = next_timeout - quic_get_time (NULL);
1148 if (next_timeout == 0 || next_interval <= 0)
1150 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1156 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1157 if (svm_fifo_set_event (quic_session->tx_fifo))
1159 rv = session_send_io_evt_to_thread_custom (
1160 quic_session, quic_session->thread_index, SESSION_IO_EVT_TX);
1161 if (PREDICT_FALSE (rv))
1162 QUIC_ERR ("Failed to enqueue builtin_tx %d", rv);
1168 ASSERT (vlib_get_thread_index () == ctx->c_thread_index ||
1169 vlib_get_thread_index () == 0);
1170 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
1172 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1173 next_interval, ctx->c_c_index);
1175 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1177 if (next_timeout == INT64_MAX)
1179 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1182 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
1187 if (next_timeout == INT64_MAX)
1189 quic_stop_ctx_timer (ctx);
1192 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1199 quic_expired_timers_dispatch (u32 * expired_timers)
1203 for (i = 0; i < vec_len (expired_timers); i++)
1205 quic_timer_expired (expired_timers[i]);
1209 /* Transport proto functions */
1211 quic_connect_stream (session_t * quic_session, session_endpoint_cfg_t * sep)
1213 uint64_t quic_session_handle;
1214 session_t *stream_session;
1215 quic_stream_data_t *stream_data;
1216 quicly_stream_t *stream;
1217 quicly_conn_t *conn;
1218 app_worker_t *app_wrk;
1219 quic_ctx_t *qctx, *sctx;
1224 /* Find base session to which the user want to attach a stream */
1225 quic_session_handle = session_handle (quic_session);
1226 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
1228 if (session_type_transport_proto (quic_session->session_type) !=
1229 TRANSPORT_PROTO_QUIC)
1231 QUIC_ERR ("received incompatible session");
1235 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1238 QUIC_ERR ("Invalid app worker :(");
1242 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1243 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1244 qctx = quic_ctx_get (quic_session->connection_index,
1245 quic_session->thread_index);
1246 if (quic_ctx_is_stream (qctx))
1248 QUIC_ERR ("session is a stream");
1249 quic_ctx_free (sctx);
1253 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1254 sctx->parent_app_id = qctx->parent_app_id;
1255 sctx->quic_connection_ctx_id = qctx->c_c_index;
1256 sctx->c_c_index = sctx_index;
1257 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1258 sctx->flags |= QUIC_F_IS_STREAM;
1262 if (!conn || !quicly_connection_is_ready (conn))
1265 is_unidir = sep->transport_flags & TRANSPORT_CFG_F_UNIDIRECTIONAL;
1266 if ((rv = quicly_open_stream (conn, &stream, is_unidir)))
1268 QUIC_DBG (2, "Stream open failed with %d", rv);
1271 quic_increment_counter (QUIC_ERROR_OPENED_STREAM, 1);
1273 sctx->stream = stream;
1274 sctx->crypto_context_index = qctx->crypto_context_index;
1276 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1278 stream_session = session_alloc (qctx->c_thread_index);
1279 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1280 session_handle (stream_session), sctx_index);
1281 stream_session->app_wrk_index = app_wrk->wrk_index;
1282 stream_session->connection_index = sctx_index;
1283 stream_session->listener_handle = quic_session_handle;
1284 stream_session->session_type =
1285 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1287 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1289 sctx->c_s_index = stream_session->session_index;
1290 stream_data = (quic_stream_data_t *) stream->data;
1291 stream_data->ctx_id = sctx->c_c_index;
1292 stream_data->thread_index = sctx->c_thread_index;
1293 stream_data->app_rx_data_len = 0;
1294 stream_data->app_tx_data_len = 0;
1295 stream_session->session_state = SESSION_STATE_READY;
1296 stream_session->opaque = sep->opaque;
1298 /* For now we only reset streams. Cleanup will be triggered by timers */
1299 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1301 QUIC_ERR ("failed to app_worker_init_connected");
1302 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1303 return app_worker_connect_notify (app_wrk, NULL, rv, sep->opaque);
1306 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1307 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1308 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1310 if (app_worker_connect_notify (app_wrk, stream_session, SESSION_E_NONE,
1313 QUIC_ERR ("failed to notify app");
1314 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
1315 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1323 quic_connect_connection (session_endpoint_cfg_t * sep)
1325 vnet_connect_args_t _cargs, *cargs = &_cargs;
1326 transport_endpt_crypto_cfg_t *ccfg;
1327 quic_main_t *qm = &quic_main;
1328 u32 ctx_index, thread_index;
1330 app_worker_t *app_wrk;
1335 return SESSION_E_NOEXTCFG;
1337 /* Use pool on thread 1 if we have workers because of UDP */
1338 thread_index = transport_cl_thread ();
1339 ccfg = &sep->ext_cfg->crypto;
1341 clib_memset (cargs, 0, sizeof (*cargs));
1342 ctx_index = quic_ctx_alloc (thread_index);
1343 ctx = quic_ctx_get (ctx_index, thread_index);
1344 ctx->parent_app_wrk_id = sep->app_wrk_index;
1345 ctx->c_s_index = QUIC_SESSION_INVALID;
1346 ctx->c_c_index = ctx_index;
1347 ctx->udp_is_ip4 = sep->is_ip4;
1348 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1349 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1350 ctx->client_opaque = sep->opaque;
1351 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1352 if (ccfg->hostname[0])
1353 ctx->srv_hostname = format (0, "%s", ccfg->hostname);
1355 /* needed by quic for crypto + determining client / server */
1356 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1357 &sep->ip, sep->is_ip4);
1358 vec_terminate_c_string (ctx->srv_hostname);
1360 clib_memcpy (&cargs->sep_ext, sep, sizeof (session_endpoint_cfg_t));
1361 cargs->sep.transport_proto = TRANSPORT_PROTO_UDP;
1362 cargs->app_index = qm->app_index;
1363 cargs->api_context = ctx_index;
1365 app_wrk = app_worker_get (sep->app_wrk_index);
1366 app = application_get (app_wrk->app_index);
1367 ctx->parent_app_id = app_wrk->app_index;
1368 cargs->sep_ext.ns_index = app->ns_index;
1369 cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1371 ctx->crypto_engine = ccfg->crypto_engine;
1372 ctx->ckpair_index = ccfg->ckpair_index;
1373 if ((error = quic_acquire_crypto_context (ctx)))
1376 if ((error = vnet_connect (cargs)))
1383 quic_connect (transport_endpoint_cfg_t * tep)
1385 QUIC_DBG (2, "Called quic_connect");
1386 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1387 session_t *quic_session;
1388 sep = (session_endpoint_cfg_t *) tep;
1390 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1392 return quic_connect_stream (quic_session, sep);
1394 return quic_connect_connection (sep);
1398 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1401 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1404 session_t *stream_session = session_get (ctx->c_s_index,
1405 ctx->c_thread_index);
1407 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1409 if (quic_ctx_is_stream (ctx))
1411 quicly_stream_t *stream = ctx->stream;
1412 if (!quicly_stream_has_send_side (quicly_is_client (stream->conn),
1415 quicly_sendstate_shutdown (&stream->sendstate, ctx->bytes_written +
1416 svm_fifo_max_dequeue
1417 (stream_session->tx_fifo));
1418 err = quicly_stream_sync_sendbuf (stream, 1);
1421 QUIC_DBG (1, "sendstate_shutdown failed for stream session %lu",
1422 session_handle (stream_session));
1423 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1425 quic_send_packets (ctx);
1429 switch (ctx->conn_state)
1431 case QUIC_CONN_STATE_OPENED:
1432 case QUIC_CONN_STATE_HANDSHAKE:
1433 case QUIC_CONN_STATE_READY:
1434 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1435 quicly_conn_t *conn = ctx->conn;
1436 /* Start connection closing. Keep sending packets until quicly_send
1437 returns QUICLY_ERROR_FREE_CONNECTION */
1439 quic_increment_counter (QUIC_ERROR_CLOSED_CONNECTION, 1);
1440 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1441 /* This also causes all streams to be closed (and the cb called) */
1442 quic_send_packets (ctx);
1444 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1445 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1446 /* send_packets will eventually return an error, we delete the conn at
1449 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1450 quic_connection_delete (ctx);
1452 case QUIC_CONN_STATE_ACTIVE_CLOSING:
1455 QUIC_ERR ("Trying to close conn in state %d", ctx->conn_state);
1461 quic_start_listen (u32 quic_listen_session_index,
1462 transport_endpoint_cfg_t *tep)
1464 vnet_listen_args_t _bargs, *args = &_bargs;
1465 transport_endpt_crypto_cfg_t *ccfg;
1466 quic_main_t *qm = &quic_main;
1467 session_handle_t udp_handle;
1468 session_endpoint_cfg_t *sep;
1469 session_t *udp_listen_session;
1470 app_worker_t *app_wrk;
1474 app_listener_t *app_listener;
1477 sep = (session_endpoint_cfg_t *) tep;
1479 return SESSION_E_NOEXTCFG;
1481 ccfg = &sep->ext_cfg->crypto;
1482 app_wrk = app_worker_get (sep->app_wrk_index);
1483 app = application_get (app_wrk->app_index);
1484 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1486 clib_memset (args, 0, sizeof (*args));
1487 args->app_index = qm->app_index;
1488 args->sep_ext = *sep;
1489 args->sep_ext.ns_index = app->ns_index;
1490 args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP;
1491 args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1492 if ((rv = vnet_listen (args)))
1495 lctx_index = quic_ctx_alloc (0);
1496 udp_handle = args->handle;
1497 app_listener = app_listener_get_w_handle (udp_handle);
1498 udp_listen_session = app_listener_get_session (app_listener);
1499 udp_listen_session->opaque = lctx_index;
1501 lctx = quic_ctx_get (lctx_index, 0);
1502 lctx->flags |= QUIC_F_IS_LISTENER;
1504 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1505 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1506 lctx->c_rmt_port = args->sep.peer.port;
1507 lctx->c_lcl_port = args->sep.port;
1508 lctx->c_is_ip4 = args->sep.is_ip4;
1509 lctx->c_fib_index = args->sep.fib_index;
1510 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1511 lctx->parent_app_wrk_id = sep->app_wrk_index;
1512 lctx->parent_app_id = app_wrk->app_index;
1513 lctx->udp_session_handle = udp_handle;
1514 lctx->c_s_index = quic_listen_session_index;
1515 lctx->crypto_engine = ccfg->crypto_engine;
1516 lctx->ckpair_index = ccfg->ckpair_index;
1517 if ((rv = quic_acquire_crypto_context (lctx)))
1520 QUIC_DBG (2, "Listening UDP session 0x%lx",
1521 session_handle (udp_listen_session));
1522 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1527 quic_stop_listen (u32 lctx_index)
1529 QUIC_DBG (2, "Called quic_stop_listen");
1531 lctx = quic_ctx_get (lctx_index, 0);
1532 QUIC_ASSERT (quic_ctx_is_listener (lctx));
1533 vnet_unlisten_args_t a = {
1534 .handle = lctx->udp_session_handle,
1535 .app_index = quic_main.app_index,
1536 .wrk_map_index = 0 /* default wrk */
1538 if (vnet_unlisten (&a))
1539 clib_warning ("unlisten errored");
1541 quic_release_crypto_context (lctx->crypto_context_index,
1542 0 /* thread_index */ );
1543 quic_ctx_free (lctx);
1547 static transport_connection_t *
1548 quic_connection_get (u32 ctx_index, u32 thread_index)
1551 ctx = quic_ctx_get (ctx_index, thread_index);
1552 return &ctx->connection;
1555 static transport_connection_t *
1556 quic_listener_get (u32 listener_index)
1558 QUIC_DBG (2, "Called quic_listener_get");
1560 ctx = quic_ctx_get (listener_index, 0);
1561 return &ctx->connection;
1565 format_quic_ctx (u8 * s, va_list * args)
1567 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1568 u32 verbose = va_arg (*args, u32);
1573 str = format (str, "[%d:%d][Q] ", ctx->c_thread_index, ctx->c_s_index);
1575 if (quic_ctx_is_listener (ctx))
1576 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1577 else if (quic_ctx_is_stream (ctx))
1578 str = format (str, "Stream %ld conn %d",
1579 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1580 else /* connection */
1581 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1582 ctx->udp_session_handle);
1584 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1585 ctx->parent_app_wrk_id);
1588 s = format (s, "%-" SESSION_CLI_ID_LEN "s%-" SESSION_CLI_STATE_LEN "d",
1589 str, ctx->conn_state);
1591 s = format (s, "%s\n", str);
1597 format_quic_connection (u8 * s, va_list * args)
1599 u32 qc_index = va_arg (*args, u32);
1600 u32 thread_index = va_arg (*args, u32);
1601 u32 verbose = va_arg (*args, u32);
1602 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1603 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1608 format_quic_half_open (u8 * s, va_list * args)
1610 u32 qc_index = va_arg (*args, u32);
1611 u32 thread_index = va_arg (*args, u32);
1612 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1613 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1614 ctx->parent_app_id);
1620 format_quic_listener (u8 * s, va_list * args)
1622 u32 tci = va_arg (*args, u32);
1623 u32 thread_index = va_arg (*args, u32);
1624 u32 verbose = va_arg (*args, u32);
1625 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1626 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1630 /* Session layer callbacks */
1633 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1634 ip46_address_t * addr, u16 port, u8 is_ip4)
1638 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1639 sa4->sin_family = AF_INET;
1640 sa4->sin_port = port;
1641 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1642 *salen = sizeof (struct sockaddr_in);
1646 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1647 sa6->sin6_family = AF_INET6;
1648 sa6->sin6_port = port;
1649 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1650 *salen = sizeof (struct sockaddr_in6);
1655 quic_on_quic_session_connected (quic_ctx_t * ctx)
1657 session_t *quic_session;
1658 app_worker_t *app_wrk;
1659 u32 ctx_id = ctx->c_c_index;
1660 u32 thread_index = ctx->c_thread_index;
1663 quic_session = session_alloc (thread_index);
1665 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1666 ctx->c_s_index = quic_session->session_index;
1667 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1668 quic_session->connection_index = ctx->c_c_index;
1669 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1670 quic_session->session_type =
1671 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1673 /* If quic session connected fails, immediatly close connection */
1674 app_wrk = app_worker_get (ctx->parent_app_wrk_id);
1675 if ((rv = app_worker_init_connected (app_wrk, quic_session)))
1677 QUIC_ERR ("failed to app_worker_init_connected");
1678 quic_proto_on_close (ctx_id, thread_index);
1679 app_worker_connect_notify (app_wrk, NULL, rv, ctx->client_opaque);
1683 quic_session->session_state = SESSION_STATE_CONNECTING;
1684 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1685 SESSION_E_NONE, ctx->client_opaque)))
1687 QUIC_ERR ("failed to notify app %d", rv);
1688 quic_proto_on_close (ctx_id, thread_index);
1694 quic_check_quic_session_connected (quic_ctx_t * ctx)
1696 /* Called when we need to trigger quic session connected
1697 * we may call this function on the server side / at
1700 /* Conn may be set to null if the connection is terminated */
1701 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1703 if (!quicly_connection_is_ready (ctx->conn))
1705 ctx->conn_state = QUIC_CONN_STATE_READY;
1706 if (!quicly_is_client (ctx->conn))
1708 quic_on_quic_session_connected (ctx);
1712 quic_update_conn_ctx (quicly_conn_t * conn, quicly_context_t * quicly_context)
1714 /* we need to update the quicly_conn on migrate
1715 * as it contains a pointer to the crypto context */
1716 ptls_context_t **tls;
1717 quicly_context_t **_quicly_context;
1718 _quicly_context = (quicly_context_t **) conn;
1719 *_quicly_context = quicly_context;
1720 tls = (ptls_context_t **) quicly_get_tls (conn);
1721 *tls = quicly_context->tls;
1725 quic_receive_connection (void *arg)
1727 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1728 quic_ctx_t *temp_ctx, *new_ctx;
1729 clib_bihash_kv_16_8_t kv;
1730 quicly_conn_t *conn;
1731 quicly_context_t *quicly_context;
1732 session_t *udp_session;
1735 new_ctx_id = quic_ctx_alloc (thread_index);
1736 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1738 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1741 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1742 clib_mem_free (temp_ctx);
1744 new_ctx->c_thread_index = thread_index;
1745 new_ctx->c_c_index = new_ctx_id;
1746 quic_acquire_crypto_context (new_ctx);
1748 conn = new_ctx->conn;
1749 quicly_context = quic_get_quicly_ctx_from_ctx (new_ctx);
1750 quic_update_conn_ctx (conn, quicly_context);
1752 quic_store_conn_ctx (conn, new_ctx);
1753 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1754 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1755 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1756 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1757 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1758 quic_update_timer (new_ctx);
1760 /* Trigger write on this connection if necessary */
1761 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1762 udp_session->opaque = new_ctx_id;
1763 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1764 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1765 quic_set_udp_tx_evt (udp_session);
1769 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1771 quic_ctx_t *ctx, *temp_ctx;
1772 u32 thread_index = vlib_get_thread_index ();
1774 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1776 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1777 QUIC_ASSERT (temp_ctx != NULL);
1778 ctx = quic_ctx_get (ctx_index, thread_index);
1780 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1782 quic_stop_ctx_timer (ctx);
1783 quic_release_crypto_context (ctx->crypto_context_index, thread_index);
1784 quic_ctx_free (ctx);
1786 /* Send connection to destination thread */
1787 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1792 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1793 session_t * udp_session,
1794 session_error_t err)
1796 QUIC_DBG (2, "UDP Session is now connected (id %u)",
1797 udp_session->session_index);
1798 /* This should always be called before quic_connect returns since UDP always
1799 * connects instantly. */
1800 clib_bihash_kv_16_8_t kv;
1801 struct sockaddr_in6 sa6;
1802 struct sockaddr *sa = (struct sockaddr *) &sa6;
1804 transport_connection_t *tc;
1805 app_worker_t *app_wrk;
1806 quicly_conn_t *conn;
1810 quicly_context_t *quicly_ctx;
1812 /* Allocate session on whatever thread udp used, i.e., probably first
1813 * worker, although this may be main thread. If it is main, it's done
1814 * with a worker barrier */
1815 thread_index = udp_session->thread_index;
1816 ASSERT (thread_index == 0 || thread_index == 1);
1817 ctx = quic_ctx_get (ctx_index, thread_index);
1821 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1824 api_context = ctx->c_s_index;
1825 app_worker_connect_notify (app_wrk, 0, SESSION_E_NONE, api_context);
1830 QUIC_DBG (2, "New ctx [%u]%x", thread_index, (ctx) ? ctx_index : ~0);
1832 ctx->udp_session_handle = session_handle (udp_session);
1833 udp_session->opaque = ctx_index;
1835 /* Init QUIC lib connection
1836 * Generate required sockaddr & salen */
1837 tc = session_get_transport (udp_session);
1838 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1840 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1841 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1842 sa, NULL, &quic_main.wrk_ctx[thread_index].next_cid,
1843 ptls_iovec_init (NULL, 0), &quic_main.hs_properties,
1845 ++quic_main.wrk_ctx[thread_index].next_cid.master_id;
1846 /* Save context handle in quicly connection */
1847 quic_store_conn_ctx (ctx->conn, ctx);
1850 /* Register connection in connections map */
1852 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1853 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1854 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1855 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1857 quic_send_packets (ctx);
1863 quic_udp_session_disconnect_callback (session_t * s)
1865 clib_warning ("UDP session disconnected???");
1869 quic_udp_session_cleanup_callback (session_t * udp_session,
1870 session_cleanup_ntf_t ntf)
1874 if (ntf != SESSION_CLEANUP_SESSION)
1877 ctx = quic_ctx_get (udp_session->opaque, udp_session->thread_index);
1878 quic_stop_ctx_timer (ctx);
1879 quic_release_crypto_context (ctx->crypto_context_index,
1880 ctx->c_thread_index);
1881 quic_ctx_free (ctx);
1885 quic_udp_session_reset_callback (session_t * s)
1887 clib_warning ("UDP session reset???");
1891 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1893 u32 new_thread = session_thread_from_handle (new_sh);
1896 QUIC_DBG (2, "Session %x migrated to %lx", s->session_index, new_sh);
1897 QUIC_ASSERT (vlib_get_thread_index () == s->thread_index);
1898 ctx = quic_ctx_get (s->opaque, s->thread_index);
1899 QUIC_ASSERT (ctx->udp_session_handle == session_handle (s));
1901 ctx->udp_session_handle = new_sh;
1903 s->opaque = 0xfeedface;
1905 quic_transfer_connection (ctx->c_c_index, new_thread);
1909 quic_udp_session_accepted_callback (session_t * udp_session)
1911 /* New UDP connection, try to accept it */
1913 quic_ctx_t *ctx, *lctx;
1914 session_t *udp_listen_session;
1915 u32 thread_index = vlib_get_thread_index ();
1917 udp_listen_session =
1918 listen_session_get_from_handle (udp_session->listener_handle);
1920 ctx_index = quic_ctx_alloc (thread_index);
1921 ctx = quic_ctx_get (ctx_index, thread_index);
1922 ctx->c_thread_index = udp_session->thread_index;
1923 ctx->c_c_index = ctx_index;
1924 ctx->c_s_index = QUIC_SESSION_INVALID;
1925 ctx->udp_session_handle = session_handle (udp_session);
1926 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1927 ctx->listener_ctx_id = udp_listen_session->opaque;
1928 lctx = quic_ctx_get (udp_listen_session->opaque,
1929 udp_listen_session->thread_index);
1930 ctx->udp_is_ip4 = lctx->c_is_ip4;
1931 ctx->parent_app_id = lctx->parent_app_id;
1932 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1933 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1934 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1935 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1937 ctx->crypto_engine = lctx->crypto_engine;
1938 ctx->ckpair_index = lctx->ckpair_index;
1939 quic_acquire_crypto_context (ctx);
1940 udp_session->opaque = ctx_index;
1941 udp_session->session_state = SESSION_STATE_READY;
1943 /* TODO timeout to delete these if they never connect */
1948 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1950 /* No-op for builtin */
1955 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1957 /* No-op for builtin */
1962 quic_custom_app_rx_callback (transport_connection_t * tc)
1965 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1966 QUIC_DBG (3, "Received app READ notification");
1967 quic_ack_rx_data (stream_session);
1968 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1970 /* Need to send packets (acks may never be sent otherwise) */
1971 ctx = quic_ctx_get (stream_session->connection_index,
1972 stream_session->thread_index);
1973 quic_send_packets (ctx);
1978 quic_custom_tx_callback (void *s, transport_send_params_t * sp)
1980 session_t *stream_session = (session_t *) s;
1981 quic_stream_data_t *stream_data;
1982 quicly_stream_t *stream;
1988 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1990 ctx = quic_ctx_get (stream_session->connection_index,
1991 stream_session->thread_index);
1992 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1994 goto tx_end; /* Most probably a reschedule */
1997 QUIC_DBG (3, "Stream TX event");
1998 quic_ack_rx_data (stream_session);
1999 stream = ctx->stream;
2000 if (!quicly_sendstate_is_open (&stream->sendstate))
2002 QUIC_ERR ("Warning: tried to send on closed stream");
2006 stream_data = (quic_stream_data_t *) stream->data;
2007 max_deq = svm_fifo_max_dequeue (stream_session->tx_fifo);
2008 QUIC_ASSERT (max_deq >= stream_data->app_tx_data_len);
2009 if (max_deq == stream_data->app_tx_data_len)
2011 QUIC_DBG (3, "TX but no data %d / %d", max_deq,
2012 stream_data->app_tx_data_len);
2015 stream_data->app_tx_data_len = max_deq;
2016 rv = quicly_stream_sync_sendbuf (stream, 1);
2020 return quic_send_packets (ctx);
2024 * Returns 0 if a matching connection is found and is on the right thread.
2025 * Otherwise returns -1.
2026 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
2030 quic_find_packet_ctx (quic_rx_packet_ctx_t * pctx, u32 caller_thread_index)
2032 clib_bihash_kv_16_8_t kv;
2033 clib_bihash_16_8_t *h;
2035 u32 index, thread_id;
2037 h = &quic_main.connection_hash;
2038 quic_make_connection_key (&kv, &pctx->packet.cid.dest.plaintext);
2039 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
2041 if (clib_bihash_search_16_8 (h, &kv, &kv))
2043 QUIC_DBG (3, "connection not found");
2044 return QUIC_PACKET_TYPE_NONE;
2047 index = kv.value & UINT32_MAX;
2048 thread_id = kv.value >> 32;
2049 /* Check if this connection belongs to this thread, otherwise
2050 * ask for it to be moved */
2051 if (thread_id != caller_thread_index)
2053 QUIC_DBG (2, "Connection is on wrong thread");
2054 /* Cannot make full check with quicly_is_destination... */
2055 pctx->ctx_index = index;
2056 pctx->thread_index = thread_id;
2057 return QUIC_PACKET_TYPE_MIGRATE;
2059 ctx = quic_ctx_get (index, vlib_get_thread_index ());
2062 QUIC_ERR ("ctx has no conn");
2063 return QUIC_PACKET_TYPE_NONE;
2065 if (!quicly_is_destination (ctx->conn, NULL, &pctx->sa, &pctx->packet))
2066 return QUIC_PACKET_TYPE_NONE;
2068 QUIC_DBG (3, "Connection found");
2069 pctx->ctx_index = index;
2070 pctx->thread_index = thread_id;
2071 return QUIC_PACKET_TYPE_RECEIVE;
2075 quic_accept_connection (quic_rx_packet_ctx_t * pctx)
2077 quicly_context_t *quicly_ctx;
2078 session_t *quic_session;
2079 clib_bihash_kv_16_8_t kv;
2080 app_worker_t *app_wrk;
2081 quicly_conn_t *conn;
2086 /* new connection, accept and create context if packet is valid
2087 * TODO: check if socket is actually listening? */
2088 ctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2089 if (ctx->c_s_index != QUIC_SESSION_INVALID)
2091 QUIC_DBG (2, "already accepted ctx 0x%x", ctx->c_s_index);
2095 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2096 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, &pctx->sa,
2097 &pctx->packet, NULL,
2098 &quic_main.wrk_ctx[pctx->thread_index].next_cid,
2101 /* Invalid packet, pass */
2102 assert (conn == NULL);
2103 QUIC_ERR ("Accept failed with %U", quic_format_err, rv);
2104 /* TODO: cleanup created quic ctx and UDP session */
2107 assert (conn != NULL);
2109 ++quic_main.wrk_ctx[pctx->thread_index].next_cid.master_id;
2110 /* Save ctx handle in quicly connection */
2111 quic_store_conn_ctx (conn, ctx);
2114 quic_session = session_alloc (ctx->c_thread_index);
2115 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
2116 session_handle (quic_session), ctx->c_c_index);
2117 ctx->c_s_index = quic_session->session_index;
2119 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
2121 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
2122 quic_session->connection_index = ctx->c_c_index;
2123 quic_session->session_type =
2124 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
2125 quic_session->listener_handle = lctx->c_s_index;
2127 /* Register connection in connections map */
2128 quic_make_connection_key (&kv, quicly_get_master_id (conn));
2129 kv.value = ((u64) pctx->thread_index) << 32 | (u64) pctx->ctx_index;
2130 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2131 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2133 /* If notify fails, reset connection immediatly */
2134 if ((rv = app_worker_init_accepted (quic_session)))
2136 QUIC_ERR ("failed to allocate fifos");
2137 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2141 app_wrk = app_worker_get (quic_session->app_wrk_index);
2142 quic_session->session_state = SESSION_STATE_ACCEPTING;
2143 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
2145 QUIC_ERR ("failed to notify accept worker app");
2146 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2150 ctx->conn_state = QUIC_CONN_STATE_READY;
2154 quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx)
2156 /* short header packet; potentially a dead connection. No need to check the
2157 * length of the incoming packet, because loop is prevented by authenticating
2158 * the CID (by checking node_id and thread_id). If the peer is also sending a
2159 * reset, then the next CID is highly likely to contain a non-authenticating
2161 QUIC_DBG (2, "Sending stateless reset");
2163 session_t *udp_session;
2164 quicly_context_t *quicly_ctx;
2165 if (pctx->packet.cid.dest.plaintext.node_id != 0
2166 || pctx->packet.cid.dest.plaintext.thread_id != 0)
2168 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2169 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2171 quicly_address_t src;
2172 uint8_t payload[quicly_ctx->transport_params.max_udp_payload_size];
2173 size_t payload_len =
2174 quicly_send_stateless_reset (quicly_ctx, &src.sa, payload);
2175 if (payload_len == 0)
2178 struct iovec packet;
2179 packet.iov_len = payload_len;
2180 packet.iov_base = payload;
2182 struct _st_quicly_conn_public_t *conn =
2183 (struct _st_quicly_conn_public_t *) qctx->conn;
2185 udp_session = session_get_from_handle (udp_session_handle);
2186 rv = quic_send_datagram (udp_session, &packet, &conn->remote.address,
2187 &conn->local.address);
2188 quic_set_udp_tx_evt (udp_session);
2193 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
2194 u32 fifo_offset, quic_rx_packet_ctx_t * pctx)
2198 u32 thread_index = vlib_get_thread_index ();
2199 u32 cur_deq = svm_fifo_max_dequeue (f) - fifo_offset;
2200 quicly_context_t *quicly_ctx;
2201 session_t *udp_session;
2204 ret = svm_fifo_peek (f, fifo_offset,
2205 SESSION_CONN_HDR_LEN, (u8 *) & pctx->ph);
2206 QUIC_ASSERT (ret == SESSION_CONN_HDR_LEN);
2207 QUIC_ASSERT (pctx->ph.data_offset == 0);
2208 full_len = pctx->ph.data_length + SESSION_CONN_HDR_LEN;
2209 if (full_len > cur_deq)
2211 QUIC_ERR ("Not enough data in fifo RX");
2215 /* Quicly can read len bytes from the fifo at offset:
2216 * ph.data_offset + SESSION_CONN_HDR_LEN */
2217 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + fifo_offset,
2218 pctx->ph.data_length, pctx->data);
2219 if (ret != pctx->ph.data_length)
2221 QUIC_ERR ("Not enough data peeked in RX");
2225 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
2226 quic_build_sockaddr (&pctx->sa, &pctx->salen, &pctx->ph.rmt_ip,
2227 pctx->ph.rmt_port, pctx->ph.is_ip4);
2228 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2231 plen = quicly_decode_packet (quicly_ctx, &pctx->packet, pctx->data,
2232 pctx->ph.data_length, &off);
2234 if (plen == SIZE_MAX)
2239 rv = quic_find_packet_ctx (pctx, thread_index);
2240 if (rv == QUIC_PACKET_TYPE_RECEIVE)
2242 pctx->ptype = QUIC_PACKET_TYPE_RECEIVE;
2244 if (quic_main.vnet_crypto_enabled &&
2245 quic_main.default_crypto_engine == CRYPTO_ENGINE_VPP)
2247 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, thread_index);
2248 quic_crypto_decrypt_packet (qctx, pctx);
2252 else if (rv == QUIC_PACKET_TYPE_MIGRATE)
2254 pctx->ptype = QUIC_PACKET_TYPE_MIGRATE;
2255 /* Connection found but on wrong thread, ask move */
2257 else if (QUICLY_PACKET_IS_LONG_HEADER (pctx->packet.octets.base[0]))
2259 pctx->ptype = QUIC_PACKET_TYPE_ACCEPT;
2260 udp_session = session_get_from_handle (udp_session_handle);
2261 pctx->ctx_index = udp_session->opaque;
2262 pctx->thread_index = thread_index;
2266 pctx->ptype = QUIC_PACKET_TYPE_RESET;
2272 quic_udp_session_rx_callback (session_t * udp_session)
2274 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2275 quic_ctx_t *ctx = NULL, *prev_ctx = NULL;
2276 svm_fifo_t *f = udp_session->rx_fifo;
2278 u64 udp_session_handle = session_handle (udp_session);
2280 u32 thread_index = vlib_get_thread_index ();
2281 u32 cur_deq, fifo_offset, max_packets, i;
2283 quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_PACKETS];
2285 if (udp_session->flags & SESSION_F_IS_MIGRATING)
2287 QUIC_DBG (3, "RX on migrating udp session");
2292 max_deq = svm_fifo_max_dequeue (f);
2297 max_packets = QUIC_RCV_MAX_PACKETS;
2300 clib_memset (packets_ctx, 0xfa,
2301 QUIC_RCV_MAX_PACKETS * sizeof (quic_rx_packet_ctx_t));
2303 for (i = 0; i < max_packets; i++)
2305 packets_ctx[i].thread_index = UINT32_MAX;
2306 packets_ctx[i].ctx_index = UINT32_MAX;
2307 packets_ctx[i].ptype = QUIC_PACKET_TYPE_DROP;
2309 cur_deq = max_deq - fifo_offset;
2312 max_packets = i + 1;
2315 if (cur_deq < SESSION_CONN_HDR_LEN)
2317 fifo_offset = max_deq;
2318 max_packets = i + 1;
2319 QUIC_ERR ("Fifo %d < header size in RX", cur_deq);
2322 rv = quic_process_one_rx_packet (udp_session_handle, f,
2323 fifo_offset, &packets_ctx[i]);
2324 if (packets_ctx[i].ptype != QUIC_PACKET_TYPE_MIGRATE)
2325 fifo_offset += SESSION_CONN_HDR_LEN + packets_ctx[i].ph.data_length;
2328 max_packets = i + 1;
2333 for (i = 0; i < max_packets; i++)
2335 switch (packets_ctx[i].ptype)
2337 case QUIC_PACKET_TYPE_RECEIVE:
2338 ctx = quic_ctx_get (packets_ctx[i].ctx_index, thread_index);
2339 rv = quicly_receive (ctx->conn, NULL, &packets_ctx[i].sa,
2340 &packets_ctx[i].packet);
2341 if (rv && rv != QUICLY_ERROR_PACKET_IGNORED)
2343 QUIC_ERR ("quicly_receive return error %U",
2344 quic_format_err, rv);
2347 case QUIC_PACKET_TYPE_ACCEPT:
2348 quic_accept_connection (&packets_ctx[i]);
2350 case QUIC_PACKET_TYPE_RESET:
2351 quic_reset_connection (udp_session_handle, &packets_ctx[i]);
2355 ctx = prev_ctx = NULL;
2356 for (i = 0; i < max_packets; i++)
2359 switch (packets_ctx[i].ptype)
2361 case QUIC_PACKET_TYPE_RECEIVE:
2362 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2363 packets_ctx[i].thread_index);
2364 quic_check_quic_session_connected (ctx);
2365 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2366 packets_ctx[i].thread_index);
2368 case QUIC_PACKET_TYPE_ACCEPT:
2369 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2370 packets_ctx[i].thread_index);
2373 continue; /* this exits the for loop since other packet types are
2374 necessarily the last in the batch */
2376 if (ctx != prev_ctx)
2377 quic_send_packets (ctx);
2380 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2381 f = udp_session->rx_fifo;
2382 svm_fifo_dequeue_drop (f, fifo_offset);
2384 if (svm_fifo_max_dequeue (f))
2391 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2392 transport_endpoint_t * tep, u8 is_lcl)
2394 session_t *udp_session;
2395 if (!quic_ctx_is_stream (ctx))
2397 udp_session = session_get_from_handle (ctx->udp_session_handle);
2398 session_get_endpoint (udp_session, tep, is_lcl);
2403 quic_get_transport_listener_endpoint (u32 listener_index,
2404 transport_endpoint_t * tep, u8 is_lcl)
2407 app_listener_t *app_listener;
2408 session_t *udp_listen_session;
2409 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2410 if (quic_ctx_is_listener (ctx))
2412 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2413 udp_listen_session = app_listener_get_session (app_listener);
2414 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2416 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2420 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2421 transport_endpoint_t * tep, u8 is_lcl)
2424 ctx = quic_ctx_get (ctx_index, thread_index);
2425 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2429 static session_cb_vft_t quic_app_cb_vft = {
2430 .session_accept_callback = quic_udp_session_accepted_callback,
2431 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2432 .session_connected_callback = quic_udp_session_connected_callback,
2433 .session_reset_callback = quic_udp_session_reset_callback,
2434 .session_migrate_callback = quic_udp_session_migrate_callback,
2435 .add_segment_callback = quic_add_segment_callback,
2436 .del_segment_callback = quic_del_segment_callback,
2437 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2438 .session_cleanup_callback = quic_udp_session_cleanup_callback,
2439 .app_cert_key_pair_delete_callback = quic_app_cert_key_pair_delete_callback,
2442 static const transport_proto_vft_t quic_proto = {
2443 .connect = quic_connect,
2444 .close = quic_proto_on_close,
2445 .start_listen = quic_start_listen,
2446 .stop_listen = quic_stop_listen,
2447 .get_connection = quic_connection_get,
2448 .get_listener = quic_listener_get,
2449 .update_time = quic_update_time,
2450 .app_rx_evt = quic_custom_app_rx_callback,
2451 .custom_tx = quic_custom_tx_callback,
2452 .format_connection = format_quic_connection,
2453 .format_half_open = format_quic_half_open,
2454 .format_listener = format_quic_listener,
2455 .get_transport_endpoint = quic_get_transport_endpoint,
2456 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2457 .transport_options = {
2460 .tx_type = TRANSPORT_TX_INTERNAL,
2461 .service_type = TRANSPORT_SERVICE_APP,
2466 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
2467 static quicly_closed_by_remote_t on_closed_by_remote = {
2468 quic_on_closed_by_remote
2470 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
2473 quic_register_cipher_suite (crypto_engine_type_t type,
2474 ptls_cipher_suite_t ** ciphers)
2476 quic_main_t *qm = &quic_main;
2477 vec_validate (qm->quic_ciphers, type);
2478 clib_bitmap_set (qm->available_crypto_engines, type, 1);
2479 qm->quic_ciphers[type] = ciphers;
2483 quic_update_fifo_size ()
2485 quic_main_t *qm = &quic_main;
2486 segment_manager_props_t *seg_mgr_props =
2487 application_get_segment_manager_properties (qm->app_index);
2492 ("error while getting segment_manager_props_t, can't update fifo-size");
2496 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2497 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2500 static clib_error_t *
2501 quic_init (vlib_main_t * vm)
2503 u32 segment_size = 256 << 20;
2504 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2505 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2506 vnet_app_attach_args_t _a, *a = &_a;
2507 u64 options[APP_OPTIONS_N_OPTIONS];
2508 quic_main_t *qm = &quic_main;
2511 num_threads = 1 /* main thread */ + vtm->n_threads;
2513 clib_memset (a, 0, sizeof (*a));
2514 clib_memset (options, 0, sizeof (options));
2516 a->session_cb_vft = &quic_app_cb_vft;
2517 a->api_client_index = APP_INVALID_INDEX;
2518 a->options = options;
2519 a->name = format (0, "quic");
2520 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2521 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2522 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2523 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2524 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2525 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2526 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2527 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2529 if (vnet_application_attach (a))
2531 clib_warning ("failed to attach quic app");
2532 return clib_error_return (0, "failed to attach quic app");
2535 vec_validate (qm->ctx_pool, num_threads - 1);
2536 vec_validate (qm->wrk_ctx, num_threads - 1);
2538 for (i = 0; i < num_threads; i++)
2540 qm->wrk_ctx[i].next_cid.thread_id = i;
2541 tw = &qm->wrk_ctx[i].timer_wheel;
2542 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2543 1e-3 /* timer period 1ms */ , ~0);
2544 tw->last_run_time = vlib_time_now (vlib_get_main ());
2545 clib_bihash_init_24_8 (&qm->wrk_ctx[i].crypto_context_hash,
2546 "quic crypto contexts", 64, 128 << 10);
2549 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2552 qm->app_index = a->app_index;
2553 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2554 / QUIC_TSTAMP_RESOLUTION;
2555 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2557 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2558 FIB_PROTOCOL_IP4, ~0);
2559 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2560 FIB_PROTOCOL_IP6, ~0);
2562 quic_load_openssl3_legacy_provider ();
2563 clib_bitmap_alloc (qm->available_crypto_engines,
2564 app_crypto_engine_n_types ());
2565 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2566 ptls_openssl_cipher_suites);
2567 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2569 vnet_crypto_main_t *cm = &crypto_main;
2570 if (vec_len (cm->engines) == 0)
2571 qm->vnet_crypto_enabled = 0;
2573 qm->vnet_crypto_enabled = 1;
2574 if (qm->vnet_crypto_enabled == 1)
2576 u8 empty_key[32] = {};
2577 quic_register_cipher_suite (CRYPTO_ENGINE_VPP,
2578 quic_crypto_cipher_suites);
2579 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2580 vec_validate (qm->per_thread_crypto_key_indices, num_threads);
2581 for (i = 0; i < num_threads; i++)
2583 qm->per_thread_crypto_key_indices[i] = vnet_crypto_key_add (
2584 vm, VNET_CRYPTO_ALG_AES_256_CTR, empty_key, 32);
2588 qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY;
2589 qm->default_quic_cc = QUIC_CC_RENO;
2595 VLIB_INIT_FUNCTION (quic_init);
2597 static clib_error_t *
2598 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2599 unformat_input_t * input,
2600 vlib_cli_command_t * cmd)
2602 unformat_input_t _line_input, *line_input = &_line_input;
2603 quic_main_t *qm = &quic_main;
2604 clib_error_t *e = 0;
2606 if (!unformat_user (input, unformat_line_input, line_input))
2609 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2611 if (unformat (line_input, "vpp"))
2612 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2613 else if (unformat (line_input, "picotls"))
2614 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2617 e = clib_error_return (0, "unknown input '%U'",
2618 format_unformat_error, line_input);
2623 unformat_free (line_input);
2627 u64 quic_fifosize = 0;
2628 static clib_error_t *
2629 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2630 unformat_input_t * input,
2631 vlib_cli_command_t * cmd)
2633 quic_main_t *qm = &quic_main;
2634 unformat_input_t _line_input, *line_input = &_line_input;
2637 if (!unformat_user (input, unformat_line_input, line_input))
2640 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2642 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
2644 if (tmp >= 0x100000000ULL)
2646 return clib_error_return
2647 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2649 qm->udp_fifo_size = tmp;
2650 quic_update_fifo_size ();
2653 return clib_error_return (0, "unknown input '%U'",
2654 format_unformat_error, line_input);
2661 quic_get_counter_value (u32 event_code)
2665 vlib_error_main_t *em;
2670 vm = vlib_get_main ();
2671 em = &vm->error_main;
2672 n = vlib_get_node (vm, quic_input_node.index);
2674 foreach_vlib_main ()
2676 em = &this_vlib_main->error_main;
2677 i = n->error_heap_index + code;
2678 c = em->counters[i];
2680 if (i < vec_len (em->counters_last_clear))
2681 c -= em->counters_last_clear[i];
2688 quic_show_aggregated_stats (vlib_main_t * vm)
2690 u32 num_workers = vlib_num_workers ();
2691 quic_main_t *qm = &quic_main;
2692 quic_ctx_t *ctx = NULL;
2693 quicly_stats_t st, agg_stats;
2694 u32 i, nconn = 0, nstream = 0;
2696 clib_memset (&agg_stats, 0, sizeof (agg_stats));
2697 for (i = 0; i < num_workers + 1; i++)
2700 pool_foreach (ctx, qm->ctx_pool[i])
2702 if (quic_ctx_is_conn (ctx) && ctx->conn)
2704 quicly_get_stats (ctx->conn, &st);
2705 agg_stats.rtt.smoothed += st.rtt.smoothed;
2706 agg_stats.rtt.minimum += st.rtt.minimum;
2707 agg_stats.rtt.variance += st.rtt.variance;
2708 agg_stats.num_packets.received += st.num_packets.received;
2709 agg_stats.num_packets.sent += st.num_packets.sent;
2710 agg_stats.num_packets.lost += st.num_packets.lost;
2711 agg_stats.num_packets.ack_received += st.num_packets.ack_received;
2712 agg_stats.num_bytes.received += st.num_bytes.received;
2713 agg_stats.num_bytes.sent += st.num_bytes.sent;
2716 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++)
2895 pool_foreach (ctx, qm->ctx_pool[i])
2897 if (quic_ctx_is_stream (ctx) && show_stream)
2898 vlib_cli_output (vm, "%U", quic_format_stream_ctx, ctx);
2899 else if (quic_ctx_is_listener (ctx) && show_listeners)
2900 vlib_cli_output (vm, "%U", quic_format_listener_ctx, ctx);
2901 else if (quic_ctx_is_conn (ctx) && show_conn)
2902 vlib_cli_output (vm, "%U", quic_format_connection_ctx, ctx);
2908 unformat_free (line_input);
2913 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) = {
2914 .path = "quic set crypto api",
2915 .short_help = "quic set crypto api [picotls|vpp]",
2916 .function = quic_plugin_crypto_command_fn,
2918 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2920 .path = "quic set fifo-size",
2921 .short_help = "quic set fifo-size N[K|M|G] (default 64K)",
2922 .function = quic_plugin_set_fifo_size_command_fn,
2924 VLIB_CLI_COMMAND(quic_show_ctx_command, static)=
2926 .path = "show quic",
2927 .short_help = "show quic",
2928 .function = quic_show_connections_command_fn,
2930 VLIB_CLI_COMMAND (quic_list_crypto_context_command, static) =
2932 .path = "show quic crypto context",
2933 .short_help = "list quic crypto contextes",
2934 .function = quic_list_crypto_context_command_fn,
2936 VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) =
2938 .path = "set quic max_packets_per_key",
2939 .short_help = "set quic max_packets_per_key 16777216",
2940 .function = quic_set_max_packets_per_key_fn,
2942 VLIB_CLI_COMMAND (quic_set_cc, static) = {
2943 .path = "set quic cc",
2944 .short_help = "set quic cc [reno|cubic]",
2945 .function = quic_set_cc_fn,
2947 VLIB_PLUGIN_REGISTER () =
2949 .version = VPP_BUILD_VER,
2950 .description = "Quic transport protocol",
2951 .default_disabled = 1,
2955 static clib_error_t *
2956 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2958 unformat_input_t _line_input, *line_input = &_line_input;
2959 quic_main_t *qm = &quic_main;
2960 clib_error_t *error = 0;
2964 qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2965 qm->udp_fifo_prealloc = 0;
2966 qm->connection_timeout = QUIC_DEFAULT_CONN_TIMEOUT;
2968 if (!unformat_user (input, unformat_line_input, line_input))
2971 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2973 if (unformat (line_input, "fifo-size %U", unformat_memory_size, &tmp))
2975 if (tmp >= 0x100000000ULL)
2977 error = clib_error_return (0,
2978 "fifo-size %llu (0x%llx) too large",
2982 qm->udp_fifo_size = tmp;
2984 else if (unformat (line_input, "conn-timeout %u", &i))
2985 qm->connection_timeout = i;
2986 else if (unformat (line_input, "fifo-prealloc %u", &i))
2987 qm->udp_fifo_prealloc = i;
2990 error = clib_error_return (0, "unknown input '%U'",
2991 format_unformat_error, line_input);
2996 unformat_free (line_input);
3000 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
3003 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
3004 vlib_frame_t * frame)
3010 VLIB_REGISTER_NODE (quic_input_node) =
3012 .function = quic_node_fn,
3013 .name = "quic-input",
3014 .vector_size = sizeof (u32),
3015 .type = VLIB_NODE_TYPE_INTERNAL,
3016 .n_errors = ARRAY_LEN (quic_error_strings),
3017 .error_strings = quic_error_strings,
3022 * fd.io coding-style-patch-verification: ON
3025 * eval: (c-set-style "gnu")