2 * Copyright (c) 2019 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_peer_t on_closed_by_peer;
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);
94 static quicly_datagram_t *
95 quic_alloc_packet (quicly_packet_allocator_t * self, size_t payloadsize)
97 quicly_datagram_t *packet;
99 clib_mem_alloc (sizeof (*packet) + payloadsize +
100 sizeof (quic_encrypt_cb_ctx))) == NULL)
103 (uint8_t *) packet + sizeof (*packet) + sizeof (quic_encrypt_cb_ctx);
104 quic_encrypt_cb_ctx *encrypt_cb_ctx =
105 (quic_encrypt_cb_ctx *) ((uint8_t *) packet + sizeof (*packet));
107 clib_memset (encrypt_cb_ctx, 0, sizeof (*encrypt_cb_ctx));
112 quic_free_packet (quicly_packet_allocator_t * self,
113 quicly_datagram_t * packet)
115 clib_mem_free (packet);
118 quicly_packet_allocator_t quic_packet_allocator =
119 { quic_alloc_packet, quic_free_packet };
122 quic_app_cert_key_pair_delete_callback (app_cert_key_pair_t * ckpair)
124 quic_main_t *qm = &quic_main;
125 crypto_context_t *crctx;
126 clib_bihash_kv_24_8_t kv;
127 vlib_thread_main_t *vtm = vlib_get_thread_main ();
128 int num_threads = 1 /* main thread */ + vtm->n_threads;
131 for (i = 0; i < num_threads; i++)
134 pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool, ({
135 if (crctx->ckpair_index == ckpair->cert_key_index)
137 quic_crypto_context_make_key_from_crctx (&kv, crctx);
138 clib_bihash_add_del_24_8 (&qm->wrk_ctx[i].crypto_context_hash, &kv, 0 /* is_add */ );
146 static crypto_context_t *
147 quic_crypto_context_alloc (u8 thread_index)
149 quic_main_t *qm = &quic_main;
150 crypto_context_t *crctx;
153 pool_get (qm->wrk_ctx[thread_index].crypto_ctx_pool, crctx);
154 clib_memset (crctx, 0, sizeof (*crctx));
155 idx = (crctx - qm->wrk_ctx[thread_index].crypto_ctx_pool);
156 crctx->ctx_index = ((u32) thread_index) << 24 | idx;
161 static crypto_context_t *
162 quic_crypto_context_get (u32 cr_index, u32 thread_index)
164 quic_main_t *qm = &quic_main;
165 ASSERT (cr_index >> 24 == thread_index);
166 return pool_elt_at_index (qm->wrk_ctx[thread_index].crypto_ctx_pool,
167 cr_index & 0x00ffffff);
170 static clib_error_t *
171 quic_list_crypto_context_command_fn (vlib_main_t * vm,
172 unformat_input_t * input,
173 vlib_cli_command_t * cmd)
175 quic_main_t *qm = &quic_main;
176 crypto_context_t *crctx;
177 vlib_thread_main_t *vtm = vlib_get_thread_main ();
178 int i, num_threads = 1 /* main thread */ + vtm->n_threads;
179 for (i = 0; i < num_threads; i++)
182 pool_foreach (crctx, qm->wrk_ctx[i].crypto_ctx_pool, ({
183 vlib_cli_output (vm, "[%d][Q]%U", i, format_crypto_context, crctx);
190 static clib_error_t *
191 quic_set_max_packets_per_key_fn (vlib_main_t * vm,
192 unformat_input_t * input,
193 vlib_cli_command_t * cmd)
195 quic_main_t *qm = &quic_main;
196 unformat_input_t _line_input, *line_input = &_line_input;
199 if (!unformat_user (input, unformat_line_input, line_input))
202 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
204 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
206 qm->max_packets_per_key = tmp;
209 return clib_error_return (0, "unknown input '%U'",
210 format_unformat_error, line_input);
217 quic_release_crypto_context (u32 crypto_context_index, u8 thread_index)
219 crypto_context_t *crctx;
220 crctx = quic_crypto_context_get (crypto_context_index, thread_index);
221 crctx->n_subscribers--;
222 quic_crypto_context_free_if_needed (crctx, thread_index);
226 quic_init_crypto_context (crypto_context_t * crctx, quic_ctx_t * ctx)
228 quic_main_t *qm = &quic_main;
229 quicly_context_t *quicly_ctx;
230 ptls_iovec_t key_vec;
231 app_cert_key_pair_t *ckpair;
233 quic_crypto_context_data_t *data;
234 ptls_context_t *ptls_ctx;
236 QUIC_DBG (2, "Init quic crctx %d thread %d", crctx->ctx_index,
237 ctx->c_thread_index);
239 data = clib_mem_alloc (sizeof (*data));
240 /* picotls depends on data being zeroed */
241 clib_memset (data, 0, sizeof (*data));
242 crctx->data = (void *) data;
243 quicly_ctx = &data->quicly_ctx;
244 ptls_ctx = &data->ptls_ctx;
246 ptls_ctx->random_bytes = ptls_openssl_random_bytes;
247 ptls_ctx->get_time = &ptls_get_time;
248 ptls_ctx->key_exchanges = ptls_openssl_key_exchanges;
249 ptls_ctx->cipher_suites = qm->quic_ciphers[ctx->crypto_engine];
250 ptls_ctx->certificates.list = NULL;
251 ptls_ctx->certificates.count = 0;
252 ptls_ctx->esni = NULL;
253 ptls_ctx->on_client_hello = NULL;
254 ptls_ctx->emit_certificate = NULL;
255 ptls_ctx->sign_certificate = NULL;
256 ptls_ctx->verify_certificate = NULL;
257 ptls_ctx->ticket_lifetime = 86400;
258 ptls_ctx->max_early_data_size = 8192;
259 ptls_ctx->hkdf_label_prefix__obsolete = NULL;
260 ptls_ctx->require_dhe_on_psk = 1;
261 ptls_ctx->encrypt_ticket = &qm->session_cache.super;
262 clib_memcpy (quicly_ctx, &quicly_spec_context, sizeof (quicly_context_t));
264 quicly_ctx->max_packet_size = QUIC_MAX_PACKET_SIZE;
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_peer = &on_closed_by_peer;
269 quicly_ctx->now = &quicly_vpp_now_cb;
270 quicly_amend_ptls_context (quicly_ctx->tls);
272 quicly_ctx->packet_allocator = &quic_packet_allocator;
273 quicly_ctx->crypto_engine = &quic_crypto_engine;
274 quicly_ctx->transport_params.max_data = QUIC_INT_MAX;
275 quicly_ctx->transport_params.max_streams_uni = (uint64_t) 1 << 60;
276 quicly_ctx->transport_params.max_streams_bidi = (uint64_t) 1 << 60;
277 quicly_ctx->transport_params.max_idle_timeout = qm->connection_timeout;
279 app = application_get (ctx->parent_app_id);
280 quicly_ctx->transport_params.max_stream_data.bidi_local =
281 app->sm_properties.rx_fifo_size - 1;
282 quicly_ctx->transport_params.max_stream_data.bidi_remote =
283 app->sm_properties.tx_fifo_size - 1;
284 quicly_ctx->transport_params.max_stream_data.uni = QUIC_INT_MAX;
286 if (!app->quic_iv_set)
288 ptls_openssl_random_bytes (app->quic_iv, QUIC_IV_LEN - 1);
289 app->quic_iv[QUIC_IV_LEN - 1] = 0;
290 app->quic_iv_set = 1;
293 clib_memcpy (data->cid_key, app->quic_iv, QUIC_IV_LEN);
294 key_vec = ptls_iovec_init (data->cid_key, QUIC_IV_LEN);
295 quicly_ctx->cid_encryptor =
296 quicly_new_default_cid_encryptor (&ptls_openssl_bfecb,
297 &ptls_openssl_aes128ecb,
298 &ptls_openssl_sha256, key_vec);
300 ckpair = app_cert_key_pair_get_if_valid (crctx->ckpair_index);
301 if (!ckpair || !ckpair->key || !ckpair->cert)
303 QUIC_DBG (1, "Wrong ckpair id %d\n", crctx->ckpair_index);
306 if (load_bio_private_key (quicly_ctx->tls, (char *) ckpair->key))
308 QUIC_DBG (1, "failed to read private key from app configuration\n");
311 if (load_bio_certificate_chain (quicly_ctx->tls, (char *) ckpair->cert))
313 QUIC_DBG (1, "failed to load certificate\n");
321 quic_acquire_crypto_context (quic_ctx_t * ctx)
323 quic_main_t *qm = &quic_main;
324 crypto_context_t *crctx;
325 clib_bihash_kv_24_8_t kv;
327 if (ctx->crypto_engine == CRYPTO_ENGINE_NONE)
329 QUIC_DBG (2, "No crypto engine specified, using %d",
330 qm->default_crypto_engine);
331 ctx->crypto_engine = qm->default_crypto_engine;
333 if (!clib_bitmap_get (qm->available_crypto_engines, ctx->crypto_engine))
335 QUIC_DBG (1, "Quic does not support crypto engine %d",
337 return VNET_API_ERROR_MISSING_CERT_KEY;
340 /* Check for exisiting crypto ctx */
341 quic_crypto_context_make_key_from_ctx (&kv, ctx);
342 if (clib_bihash_search_24_8
343 (&qm->wrk_ctx[ctx->c_thread_index].crypto_context_hash, &kv, &kv) == 0)
345 crctx = quic_crypto_context_get (kv.value, ctx->c_thread_index);
346 QUIC_DBG (2, "Found exisiting crypto context %d", kv.value);
347 ctx->crypto_context_index = kv.value;
348 crctx->n_subscribers++;
352 crctx = quic_crypto_context_alloc (ctx->c_thread_index);
353 ctx->crypto_context_index = crctx->ctx_index;
354 kv.value = crctx->ctx_index;
355 crctx->crypto_engine = ctx->crypto_engine;
356 crctx->ckpair_index = ctx->ckpair_index;
357 if (quic_init_crypto_context (crctx, ctx))
359 if (vnet_app_add_cert_key_interest (ctx->ckpair_index, qm->app_index))
361 crctx->n_subscribers++;
362 clib_bihash_add_del_24_8 (&qm->
363 wrk_ctx[ctx->c_thread_index].crypto_context_hash,
364 &kv, 1 /* is_add */ );
368 quic_crypto_context_free_if_needed (crctx, ctx->c_thread_index);
369 return VNET_API_ERROR_MISSING_CERT_KEY;
372 /* Helper functions */
375 quic_ctx_alloc (u32 thread_index)
377 quic_main_t *qm = &quic_main;
380 pool_get (qm->ctx_pool[thread_index], ctx);
382 clib_memset (ctx, 0, sizeof (quic_ctx_t));
383 ctx->c_thread_index = thread_index;
384 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
385 QUIC_DBG (3, "Allocated quic_ctx %u on thread %u",
386 ctx - qm->ctx_pool[thread_index], thread_index);
387 return ctx - qm->ctx_pool[thread_index];
391 quic_ctx_free (quic_ctx_t * ctx)
393 QUIC_DBG (2, "Free ctx %u %x", ctx->c_thread_index, ctx->c_c_index);
394 u32 thread_index = ctx->c_thread_index;
395 QUIC_ASSERT (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID);
397 clib_memset (ctx, 0xfb, sizeof (*ctx));
398 pool_put (quic_main.ctx_pool[thread_index], ctx);
402 quic_ctx_get (u32 ctx_index, u32 thread_index)
404 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
408 quic_ctx_get_if_valid (u32 ctx_index, u32 thread_index)
410 if (pool_is_free_index (quic_main.ctx_pool[thread_index], ctx_index))
412 return pool_elt_at_index (quic_main.ctx_pool[thread_index], ctx_index);
416 quic_get_conn_ctx (quicly_conn_t * conn)
419 conn_data = (u64) * quicly_get_data (conn);
420 return quic_ctx_get (conn_data & UINT32_MAX, conn_data >> 32);
424 quic_store_conn_ctx (quicly_conn_t * conn, quic_ctx_t * ctx)
426 *quicly_get_data (conn) =
427 (void *) (((u64) ctx->c_thread_index) << 32 | (u64) ctx->c_c_index);
431 quic_ctx_is_stream (quic_ctx_t * ctx)
433 return (ctx->flags & QUIC_F_IS_STREAM);
437 quic_ctx_is_listener (quic_ctx_t * ctx)
439 return (ctx->flags & QUIC_F_IS_LISTENER);
443 quic_ctx_is_conn (quic_ctx_t * ctx)
445 return !(quic_ctx_is_listener (ctx) || quic_ctx_is_stream (ctx));
448 static inline session_t *
449 get_stream_session_and_ctx_from_stream (quicly_stream_t * stream,
452 quic_stream_data_t *stream_data;
454 stream_data = (quic_stream_data_t *) stream->data;
455 *ctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
456 return session_get ((*ctx)->c_s_index, stream_data->thread_index);
460 quic_make_connection_key (clib_bihash_kv_16_8_t * kv,
461 const quicly_cid_plaintext_t * id)
463 kv->key[0] = ((u64) id->master_id) << 32 | (u64) id->thread_id;
464 kv->key[1] = id->node_id;
468 quic_sendable_packet_count (session_t * udp_session)
471 u32 packet_size = QUIC_MAX_PACKET_SIZE + SESSION_CONN_HDR_LEN;
472 max_enqueue = svm_fifo_max_enqueue (udp_session->tx_fifo);
473 return clib_min (max_enqueue / packet_size, QUIC_SEND_PACKET_VEC_SIZE);
476 static quicly_context_t *
477 quic_get_quicly_ctx_from_ctx (quic_ctx_t * ctx)
479 crypto_context_t *crctx =
480 quic_crypto_context_get (ctx->crypto_context_index, ctx->c_thread_index);
481 quic_crypto_context_data_t *data =
482 (quic_crypto_context_data_t *) crctx->data;
483 return &data->quicly_ctx;
486 static quicly_context_t *
487 quic_get_quicly_ctx_from_udp (u64 udp_session_handle)
489 session_t *udp_session = session_get_from_handle (udp_session_handle);
491 quic_ctx_get (udp_session->opaque, udp_session->thread_index);
492 return quic_get_quicly_ctx_from_ctx (ctx);
496 quic_set_udp_tx_evt (session_t * udp_session)
499 if (svm_fifo_set_event (udp_session->tx_fifo))
500 rv = session_send_io_evt_to_thread (udp_session->tx_fifo,
502 if (PREDICT_FALSE (rv))
503 clib_warning ("Event enqueue errored %d", rv);
507 quic_stop_ctx_timer (quic_ctx_t * ctx)
509 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
510 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
512 tw = &quic_main.wrk_ctx[ctx->c_thread_index].timer_wheel;
513 tw_timer_stop_1t_3w_1024sl_ov (tw, ctx->timer_handle);
514 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
515 QUIC_DBG (4, "Stopping timer for ctx %u", ctx->c_c_index);
518 /* QUIC protocol actions */
521 quic_ack_rx_data (session_t * stream_session)
526 quicly_stream_t *stream;
527 quic_stream_data_t *stream_data;
529 sctx = quic_ctx_get (stream_session->connection_index,
530 stream_session->thread_index);
531 QUIC_ASSERT (quic_ctx_is_stream (sctx));
532 stream = sctx->stream;
533 stream_data = (quic_stream_data_t *) stream->data;
535 f = stream_session->rx_fifo;
536 max_deq = svm_fifo_max_dequeue (f);
538 QUIC_ASSERT (stream_data->app_rx_data_len >= max_deq);
539 quicly_stream_sync_recvbuf (stream, stream_data->app_rx_data_len - max_deq);
540 QUIC_DBG (3, "Acking %u bytes", stream_data->app_rx_data_len - max_deq);
541 stream_data->app_rx_data_len = max_deq;
545 quic_disconnect_transport (quic_ctx_t * ctx)
547 QUIC_DBG (2, "Disconnecting transport 0x%lx", ctx->udp_session_handle);
548 vnet_disconnect_args_t a = {
549 .handle = ctx->udp_session_handle,
550 .app_index = quic_main.app_index,
553 if (vnet_disconnect_session (&a))
554 clib_warning ("UDP session 0x%lx disconnect errored",
555 ctx->udp_session_handle);
559 quic_connection_delete (quic_ctx_t * ctx)
561 clib_bihash_kv_16_8_t kv;
564 QUIC_DBG (2, "Deleting connection %u", ctx->c_c_index);
566 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
567 quic_stop_ctx_timer (ctx);
569 /* Delete the connection from the connection map */
572 quic_make_connection_key (&kv, quicly_get_master_id (conn));
573 QUIC_DBG (2, "Deleting conn with id %lu %lu from map", kv.key[0],
575 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 0 /* is_add */ );
577 quic_disconnect_transport (ctx);
580 quicly_free (ctx->conn);
581 session_transport_delete_notify (&ctx->connection);
585 quic_increment_counter (u8 evt, u8 val)
587 vlib_main_t *vm = vlib_get_main ();
588 vlib_node_increment_counter (vm, quic_input_node.index, evt, val);
592 * Called when quicly return an error
593 * This function interacts tightly with quic_proto_on_close
596 quic_connection_closed (quic_ctx_t * ctx)
598 QUIC_DBG (2, "QUIC connection %u/%u closed", ctx->c_thread_index,
601 /* TODO if connection is not established, just delete the session? */
602 /* Actually should send connect or accept error */
604 switch (ctx->conn_state)
606 case QUIC_CONN_STATE_READY:
607 /* Error on an opened connection (timeout...)
608 This puts the session in closing state, we should receive a notification
609 when the app has closed its session */
610 session_transport_reset_notify (&ctx->connection);
611 /* This ensures we delete the connection when the app confirms the close */
612 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
614 case QUIC_CONN_STATE_PASSIVE_CLOSING:
615 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED;
616 /* quic_proto_on_close will eventually be called when the app confirms the close
617 , we delete the connection at that point */
619 case QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED:
620 /* App already confirmed close, we can delete the connection */
621 quic_connection_delete (ctx);
623 case QUIC_CONN_STATE_OPENED:
624 case QUIC_CONN_STATE_HANDSHAKE:
625 case QUIC_CONN_STATE_ACTIVE_CLOSING:
626 quic_connection_delete (ctx);
629 QUIC_DBG (0, "BUG %d", ctx->conn_state);
635 quic_send_datagram (session_t * udp_session, quicly_datagram_t * packet)
638 session_dgram_hdr_t hdr;
641 transport_connection_t *tc;
643 len = packet->data.len;
644 f = udp_session->tx_fifo;
645 tc = session_get_transport (udp_session);
646 max_enqueue = svm_fifo_max_enqueue (f);
647 if (max_enqueue < SESSION_CONN_HDR_LEN + len)
649 QUIC_ERR ("Too much data to send, max_enqueue %u, len %u",
650 max_enqueue, len + SESSION_CONN_HDR_LEN);
651 return QUIC_ERROR_FULL_FIFO;
654 /* Build packet header for fifo */
655 hdr.data_length = len;
657 hdr.is_ip4 = tc->is_ip4;
658 clib_memcpy (&hdr.lcl_ip, &tc->lcl_ip, sizeof (ip46_address_t));
659 hdr.lcl_port = tc->lcl_port;
661 /* Read dest address from quicly-provided sockaddr */
664 QUIC_ASSERT (packet->dest.sa.sa_family == AF_INET);
665 struct sockaddr_in *sa4 = (struct sockaddr_in *) &packet->dest.sa;
666 hdr.rmt_port = sa4->sin_port;
667 hdr.rmt_ip.ip4.as_u32 = sa4->sin_addr.s_addr;
671 QUIC_ASSERT (packet->dest.sa.sa_family == AF_INET6);
672 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) &packet->dest.sa;
673 hdr.rmt_port = sa6->sin6_port;
674 clib_memcpy (&hdr.rmt_ip.ip6, &sa6->sin6_addr, 16);
677 ret = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
678 if (ret != sizeof (hdr))
680 QUIC_ERR ("Not enough space to enqueue header");
681 return QUIC_ERROR_FULL_FIFO;
683 ret = svm_fifo_enqueue (f, len, packet->data.base);
686 QUIC_ERR ("Not enough space to enqueue payload");
687 return QUIC_ERROR_FULL_FIFO;
690 quic_increment_counter (QUIC_ERROR_TX_PACKETS, 1);
696 quic_send_packets (quic_ctx_t * ctx)
698 quic_main_t *qm = &quic_main;
699 quicly_datagram_t *packets[QUIC_SEND_PACKET_VEC_SIZE];
700 session_t *udp_session;
702 size_t num_packets, i, max_packets;
703 quicly_packet_allocator_t *pa;
705 u32 thread_index = vlib_get_thread_index ();
707 /* We have sctx, get qctx */
708 if (quic_ctx_is_stream (ctx))
709 ctx = quic_ctx_get (ctx->quic_connection_ctx_id, ctx->c_thread_index);
711 QUIC_ASSERT (!quic_ctx_is_stream (ctx));
713 udp_session = session_get_from_handle_if_valid (ctx->udp_session_handle);
722 /* TODO : quicly can assert it can send min_packets up to 2 */
723 if (quic_sendable_packet_count (udp_session) < 2)
726 pa = quic_get_quicly_ctx_from_ctx (ctx)->packet_allocator;
729 max_packets = quic_sendable_packet_count (udp_session);
732 num_packets = max_packets;
733 if ((err = quicly_send (conn, packets, &num_packets)))
736 quic_crypto_batch_tx_packets (&qm->wrk_ctx
737 [thread_index].crypto_context_batch);
739 for (i = 0; i != num_packets; ++i)
741 quic_crypto_finalize_send_packet (packets[i]);
742 if ((err = quic_send_datagram (udp_session, packets[i])))
745 pa->free_packet (pa, packets[i]);
748 while (num_packets > 0 && num_packets == max_packets);
751 quic_set_udp_tx_evt (udp_session);
753 QUIC_DBG (3, "%u[TX] %u[RX]", svm_fifo_max_dequeue (udp_session->tx_fifo),
754 svm_fifo_max_dequeue (udp_session->rx_fifo));
755 quic_update_timer (ctx);
759 if (err && err != QUICLY_ERROR_PACKET_IGNORED
760 && err != QUICLY_ERROR_FREE_CONNECTION)
761 clib_warning ("Quic error '%U'.", quic_format_err, err);
762 quic_connection_closed (ctx);
766 /* Quicly callbacks */
769 quic_on_stream_destroy (quicly_stream_t * stream, int err)
771 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
772 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
773 stream_data->thread_index);
774 session_t *stream_session = session_get (sctx->c_s_index,
775 sctx->c_thread_index);
776 QUIC_DBG (2, "DESTROYED_STREAM: session 0x%lx (%U)",
777 session_handle (stream_session), quic_format_err, err);
779 stream_session->session_state = SESSION_STATE_CLOSED;
780 session_transport_delete_notify (&sctx->connection);
782 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
783 quic_ctx_free (sctx);
784 clib_mem_free (stream->data);
788 quic_on_stop_sending (quicly_stream_t * stream, int err)
791 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
792 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
793 stream_data->thread_index);
794 session_t *stream_session = session_get (sctx->c_s_index,
795 sctx->c_thread_index);
796 clib_warning ("(NOT IMPLEMENTD) STOP_SENDING: session 0x%lx (%U)",
797 session_handle (stream_session), quic_format_err, err);
799 /* TODO : handle STOP_SENDING */
803 quic_on_receive_reset (quicly_stream_t * stream, int err)
805 quic_stream_data_t *stream_data = (quic_stream_data_t *) stream->data;
806 quic_ctx_t *sctx = quic_ctx_get (stream_data->ctx_id,
807 stream_data->thread_index);
809 session_t *stream_session = session_get (sctx->c_s_index,
810 sctx->c_thread_index);
811 clib_warning ("RESET_STREAM: session 0x%lx (%U)",
812 session_handle (stream_session), quic_format_err, err);
814 session_transport_closing_notify (&sctx->connection);
818 quic_on_receive (quicly_stream_t * stream, size_t off, const void *src,
821 QUIC_DBG (3, "received data: %lu bytes, offset %lu", len, off);
822 u32 max_enq, rlen, rv;
824 session_t *stream_session;
825 app_worker_t *app_wrk;
827 quic_stream_data_t *stream_data;
832 stream_data = (quic_stream_data_t *) stream->data;
833 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
834 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
835 f = stream_session->rx_fifo;
837 max_enq = svm_fifo_max_enqueue_prod (f);
838 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
839 /* Handle duplicate packet/chunk from quicly */
840 if (off < stream_data->app_rx_data_len)
842 QUIC_DBG (3, "Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
843 "DUPLICATE PACKET (max_enq %u, len %u, "
844 "app_rx_data_len %u, off %u, ToBeNQ %u)",
845 stream_session->session_index,
846 stream_session->app_wrk_index,
847 stream_session->thread_index, f,
848 max_enq, len, stream_data->app_rx_data_len, off,
849 off - stream_data->app_rx_data_len + len);
852 if (PREDICT_FALSE ((off - stream_data->app_rx_data_len + len) > max_enq))
854 QUIC_ERR ("Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
855 "RX FIFO IS FULL (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);
862 return; /* This shouldn't happen */
864 if (off == stream_data->app_rx_data_len)
866 /* Streams live on the same thread so (f, stream_data) should stay consistent */
867 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
868 QUIC_DBG (3, "Session [idx %u, app_wrk %u, ti %u, rx-fifo 0x%llx]: "
869 "Enqueuing %u (rlen %u) at off %u in %u space, ",
870 stream_session->session_index,
871 stream_session->app_wrk_index,
872 stream_session->thread_index, f, len, rlen, off, max_enq);
873 stream_data->app_rx_data_len += rlen;
874 QUIC_ASSERT (rlen >= len);
875 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
876 if (PREDICT_TRUE (app_wrk != 0))
878 rv = app_worker_lock_and_send_event (app_wrk, stream_session,
881 QUIC_ERR ("Failed to ping app for RX");
883 quic_ack_rx_data (stream_session);
887 rlen = svm_fifo_enqueue_with_offset (f,
888 off - stream_data->app_rx_data_len,
890 QUIC_ASSERT (rlen == 0);
896 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
898 quic_stream_data_t *stream_data;
899 session_t *stream_session;
904 stream_data = (quic_stream_data_t *) stream->data;
905 stream_session = get_stream_session_and_ctx_from_stream (stream, &ctx);
906 f = stream_session->tx_fifo;
908 QUIC_ASSERT (stream_data->app_tx_data_len >= delta);
909 stream_data->app_tx_data_len -= delta;
910 ctx->bytes_written += delta;
911 rv = svm_fifo_dequeue_drop (f, delta);
912 QUIC_ASSERT (rv == delta);
914 rv = quicly_stream_sync_sendbuf (stream, 0);
919 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
920 size_t * len, int *wrote_all)
922 quic_stream_data_t *stream_data;
924 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_DBG (3, "Emitting %u, offset %u", *len, off);
934 deq_max = svm_fifo_max_dequeue_cons (f);
935 QUIC_ASSERT (off <= deq_max);
936 if (off + *len < deq_max)
943 *len = deq_max - off;
945 QUIC_ASSERT (*len > 0);
947 if (off + *len > stream_data->app_tx_data_len)
948 stream_data->app_tx_data_len = off + *len;
950 svm_fifo_peek (f, off, *len, dst);
953 static const quicly_stream_callbacks_t quic_stream_callbacks = {
954 .on_destroy = quic_on_stream_destroy,
955 .on_send_shift = quic_fifo_egress_shift,
956 .on_send_emit = quic_fifo_egress_emit,
957 .on_send_stop = quic_on_stop_sending,
958 .on_receive = quic_on_receive,
959 .on_receive_reset = quic_on_receive_reset
963 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
965 /* Return code for this function ends either
966 * - in quicly_receive : if not QUICLY_ERROR_PACKET_IGNORED, will close connection
967 * - in quicly_open_stream, returned directly
970 session_t *stream_session, *quic_session;
971 quic_stream_data_t *stream_data;
972 app_worker_t *app_wrk;
973 quic_ctx_t *qctx, *sctx;
977 QUIC_DBG (2, "on_stream_open called");
978 stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
979 stream->callbacks = &quic_stream_callbacks;
980 /* Notify accept on parent qsession, but only if this is not a locally
981 * initiated stream */
982 if (quicly_stream_is_self_initiated (stream))
985 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
986 qctx = quic_get_conn_ctx (stream->conn);
988 /* Might need to signal that the connection is ready if the first thing the
989 * server does is open a stream */
990 quic_check_quic_session_connected (qctx);
991 /* ctx might be invalidated */
992 qctx = quic_get_conn_ctx (stream->conn);
994 stream_session = session_alloc (qctx->c_thread_index);
995 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
996 session_handle (stream_session), sctx_id);
997 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
998 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
999 sctx->parent_app_id = qctx->parent_app_id;
1000 sctx->quic_connection_ctx_id = qctx->c_c_index;
1001 sctx->c_c_index = sctx_id;
1002 sctx->c_s_index = stream_session->session_index;
1003 sctx->stream = stream;
1004 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1005 sctx->flags |= QUIC_F_IS_STREAM;
1006 if (quicly_stream_is_unidirectional (stream->stream_id))
1007 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1009 stream_data = (quic_stream_data_t *) stream->data;
1010 stream_data->ctx_id = sctx_id;
1011 stream_data->thread_index = sctx->c_thread_index;
1012 stream_data->app_rx_data_len = 0;
1013 stream_data->app_tx_data_len = 0;
1015 sctx->c_s_index = stream_session->session_index;
1016 stream_session->session_state = SESSION_STATE_CREATED;
1017 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
1018 stream_session->connection_index = sctx->c_c_index;
1019 stream_session->session_type =
1020 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1021 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
1022 stream_session->listener_handle = listen_session_get_handle (quic_session);
1024 app_wrk = app_worker_get (stream_session->app_wrk_index);
1025 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1027 QUIC_ERR ("failed to allocate fifos");
1028 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1029 return 0; /* Frame is still valid */
1031 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1032 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1033 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1035 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
1037 QUIC_ERR ("failed to notify accept worker app");
1038 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
1039 return 0; /* Frame is still valid */
1046 quic_on_closed_by_peer (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
1047 int code, uint64_t frame_type,
1048 const char *reason, size_t reason_len)
1050 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
1052 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1053 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
1054 session_handle (quic_session), quic_format_err, code,
1055 reason_len, reason);
1057 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
1058 session_transport_closing_notify (&ctx->connection);
1061 /* Timer handling */
1064 quic_get_thread_time (u8 thread_index)
1066 return quic_main.wrk_ctx[thread_index].time_now;
1070 quic_get_time (quicly_now_t * self)
1072 u8 thread_index = vlib_get_thread_index ();
1073 return quic_get_thread_time (thread_index);
1077 quic_set_time_now (u32 thread_index)
1079 vlib_main_t *vlib_main = vlib_get_main ();
1080 f64 time = vlib_time_now (vlib_main);
1081 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1082 return quic_main.wrk_ctx[thread_index].time_now;
1085 /* Transport proto callback */
1087 quic_update_time (f64 now, u8 thread_index)
1089 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1091 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1092 quic_set_time_now (thread_index);
1093 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1097 quic_timer_expired (u32 conn_index)
1100 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1101 quic_get_time (NULL));
1102 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1103 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1104 quic_send_packets (ctx);
1108 quic_update_timer (quic_ctx_t * ctx)
1110 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1111 int64_t next_timeout, next_interval;
1112 session_t *quic_session;
1115 /* This timeout is in ms which is the unit of our timer */
1116 next_timeout = quicly_get_first_timeout (ctx->conn);
1117 next_interval = next_timeout - quic_get_time (NULL);
1119 if (next_timeout == 0 || next_interval <= 0)
1121 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1127 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1128 if (svm_fifo_set_event (quic_session->tx_fifo))
1130 rv = session_send_io_evt_to_thread_custom (quic_session,
1131 quic_session->thread_index,
1132 SESSION_IO_EVT_BUILTIN_TX);
1133 if (PREDICT_FALSE (rv))
1134 QUIC_ERR ("Failed to enqueue builtin_tx %d", rv);
1140 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
1142 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1143 next_interval, ctx->c_c_index);
1145 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1147 if (next_timeout == INT64_MAX)
1149 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1152 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
1157 if (next_timeout == INT64_MAX)
1159 quic_stop_ctx_timer (ctx);
1162 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1169 quic_expired_timers_dispatch (u32 * expired_timers)
1173 for (i = 0; i < vec_len (expired_timers); i++)
1175 quic_timer_expired (expired_timers[i]);
1179 /* Transport proto functions */
1181 quic_connect_stream (session_t * quic_session, session_endpoint_cfg_t * sep)
1183 uint64_t quic_session_handle;
1184 session_t *stream_session;
1185 quic_stream_data_t *stream_data;
1186 quicly_stream_t *stream;
1187 quicly_conn_t *conn;
1188 app_worker_t *app_wrk;
1189 quic_ctx_t *qctx, *sctx;
1194 /* Find base session to which the user want to attach a stream */
1195 quic_session_handle = session_handle (quic_session);
1196 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
1198 if (session_type_transport_proto (quic_session->session_type) !=
1199 TRANSPORT_PROTO_QUIC)
1201 QUIC_ERR ("received incompatible session");
1205 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1208 QUIC_ERR ("Invalid app worker :(");
1212 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1213 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1214 qctx = quic_ctx_get (quic_session->connection_index,
1215 quic_session->thread_index);
1216 if (quic_ctx_is_stream (qctx))
1218 QUIC_ERR ("session is a stream");
1219 quic_ctx_free (sctx);
1223 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1224 sctx->parent_app_id = qctx->parent_app_id;
1225 sctx->quic_connection_ctx_id = qctx->c_c_index;
1226 sctx->c_c_index = sctx_index;
1227 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1228 sctx->flags |= QUIC_F_IS_STREAM;
1232 if (!conn || !quicly_connection_is_ready (conn))
1235 is_unidir = sep->transport_flags & TRANSPORT_CFG_F_UNIDIRECTIONAL;
1236 if ((rv = quicly_open_stream (conn, &stream, is_unidir)))
1238 QUIC_DBG (2, "Stream open failed with %d", rv);
1241 quic_increment_counter (QUIC_ERROR_OPENED_STREAM, 1);
1243 sctx->stream = stream;
1245 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1247 stream_session = session_alloc (qctx->c_thread_index);
1248 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1249 session_handle (stream_session), sctx_index);
1250 stream_session->app_wrk_index = app_wrk->wrk_index;
1251 stream_session->connection_index = sctx_index;
1252 stream_session->listener_handle = quic_session_handle;
1253 stream_session->session_type =
1254 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1256 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1258 sctx->c_s_index = stream_session->session_index;
1259 stream_data = (quic_stream_data_t *) stream->data;
1260 stream_data->ctx_id = sctx->c_c_index;
1261 stream_data->thread_index = sctx->c_thread_index;
1262 stream_data->app_rx_data_len = 0;
1263 stream_data->app_tx_data_len = 0;
1264 stream_session->session_state = SESSION_STATE_READY;
1266 /* For now we only reset streams. Cleanup will be triggered by timers */
1267 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1269 QUIC_ERR ("failed to app_worker_init_connected");
1270 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1271 return app_worker_connect_notify (app_wrk, NULL, rv, sep->opaque);
1274 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1275 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1276 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1278 if (app_worker_connect_notify (app_wrk, stream_session, SESSION_E_NONE,
1281 QUIC_ERR ("failed to notify app");
1282 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
1283 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1291 quic_connect_connection (session_endpoint_cfg_t * sep)
1293 vnet_connect_args_t _cargs, *cargs = &_cargs;
1294 quic_main_t *qm = &quic_main;
1296 app_worker_t *app_wrk;
1299 u32 thread_index = vlib_get_thread_index ();
1302 clib_memset (cargs, 0, sizeof (*cargs));
1303 ctx_index = quic_ctx_alloc (thread_index);
1304 ctx = quic_ctx_get (ctx_index, thread_index);
1305 ctx->parent_app_wrk_id = sep->app_wrk_index;
1306 ctx->c_s_index = QUIC_SESSION_INVALID;
1307 ctx->c_c_index = ctx_index;
1308 ctx->udp_is_ip4 = sep->is_ip4;
1309 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1310 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1311 ctx->client_opaque = sep->opaque;
1312 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1314 ctx->srv_hostname = format (0, "%v", sep->hostname);
1316 /* needed by quic for crypto + determining client / server */
1317 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1318 &sep->ip, sep->is_ip4);
1319 vec_terminate_c_string (ctx->srv_hostname);
1321 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1322 cargs->sep.transport_proto = TRANSPORT_PROTO_UDP;
1323 cargs->app_index = qm->app_index;
1324 cargs->api_context = ctx_index;
1326 app_wrk = app_worker_get (sep->app_wrk_index);
1327 app = application_get (app_wrk->app_index);
1328 ctx->parent_app_id = app_wrk->app_index;
1329 cargs->sep_ext.ns_index = app->ns_index;
1330 cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1332 ctx->crypto_engine = sep->crypto_engine;
1333 ctx->ckpair_index = sep->ckpair_index;
1334 if ((error = quic_acquire_crypto_context (ctx)))
1337 if ((error = vnet_connect (cargs)))
1344 quic_connect (transport_endpoint_cfg_t * tep)
1346 QUIC_DBG (2, "Called quic_connect");
1347 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1348 session_t *quic_session;
1349 sep = (session_endpoint_cfg_t *) tep;
1351 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1353 return quic_connect_stream (quic_session, sep);
1355 return quic_connect_connection (sep);
1359 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1362 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1365 session_t *stream_session = session_get (ctx->c_s_index,
1366 ctx->c_thread_index);
1368 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1370 if (quic_ctx_is_stream (ctx))
1372 quicly_stream_t *stream = ctx->stream;
1373 if (!quicly_stream_has_send_side (quicly_is_client (stream->conn),
1376 quicly_sendstate_shutdown (&stream->sendstate, ctx->bytes_written +
1377 svm_fifo_max_dequeue
1378 (stream_session->tx_fifo));
1379 err = quicly_stream_sync_sendbuf (stream, 1);
1382 QUIC_DBG (1, "sendstate_shutdown failed for stream session %lu",
1383 session_handle (stream_session));
1384 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1386 quic_send_packets (ctx);
1390 switch (ctx->conn_state)
1392 case QUIC_CONN_STATE_OPENED:
1393 case QUIC_CONN_STATE_HANDSHAKE:
1394 case QUIC_CONN_STATE_READY:
1395 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1396 quicly_conn_t *conn = ctx->conn;
1397 /* Start connection closing. Keep sending packets until quicly_send
1398 returns QUICLY_ERROR_FREE_CONNECTION */
1400 quic_increment_counter (QUIC_ERROR_CLOSED_CONNECTION, 1);
1401 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1402 /* This also causes all streams to be closed (and the cb called) */
1403 quic_send_packets (ctx);
1405 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1406 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1407 /* send_packets will eventually return an error, we delete the conn at
1410 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1411 quic_connection_delete (ctx);
1413 case QUIC_CONN_STATE_ACTIVE_CLOSING:
1416 QUIC_ERR ("Trying to close conn in state %d", ctx->conn_state);
1422 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1424 vnet_listen_args_t _bargs, *args = &_bargs;
1425 quic_main_t *qm = &quic_main;
1426 session_handle_t udp_handle;
1427 session_endpoint_cfg_t *sep;
1428 session_t *udp_listen_session;
1429 app_worker_t *app_wrk;
1433 app_listener_t *app_listener;
1436 sep = (session_endpoint_cfg_t *) tep;
1437 app_wrk = app_worker_get (sep->app_wrk_index);
1438 /* We need to call this because we call app_worker_init_connected in
1439 * quic_accept_stream, which assumes the connect segment manager exists */
1440 app_worker_alloc_connects_segment_manager (app_wrk);
1441 app = application_get (app_wrk->app_index);
1442 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1444 clib_memset (args, 0, sizeof (*args));
1445 args->app_index = qm->app_index;
1446 args->sep_ext = *sep;
1447 args->sep_ext.ns_index = app->ns_index;
1448 args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP;
1449 args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1450 if ((rv = vnet_listen (args)))
1453 lctx_index = quic_ctx_alloc (0);
1454 udp_handle = args->handle;
1455 app_listener = app_listener_get_w_handle (udp_handle);
1456 udp_listen_session = app_listener_get_session (app_listener);
1457 udp_listen_session->opaque = lctx_index;
1459 lctx = quic_ctx_get (lctx_index, 0);
1460 lctx->flags |= QUIC_F_IS_LISTENER;
1462 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1463 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1464 lctx->c_rmt_port = args->sep.peer.port;
1465 lctx->c_lcl_port = args->sep.port;
1466 lctx->c_is_ip4 = args->sep.is_ip4;
1467 lctx->c_fib_index = args->sep.fib_index;
1468 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1469 lctx->parent_app_wrk_id = sep->app_wrk_index;
1470 lctx->parent_app_id = app_wrk->app_index;
1471 lctx->udp_session_handle = udp_handle;
1472 lctx->c_s_index = quic_listen_session_index;
1473 lctx->crypto_engine = sep->crypto_engine;
1474 lctx->ckpair_index = sep->ckpair_index;
1475 if (quic_acquire_crypto_context (lctx))
1478 QUIC_DBG (2, "Listening UDP session 0x%lx",
1479 session_handle (udp_listen_session));
1480 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1485 quic_stop_listen (u32 lctx_index)
1487 QUIC_DBG (2, "Called quic_stop_listen");
1489 lctx = quic_ctx_get (lctx_index, 0);
1490 QUIC_ASSERT (quic_ctx_is_listener (lctx));
1491 vnet_unlisten_args_t a = {
1492 .handle = lctx->udp_session_handle,
1493 .app_index = quic_main.app_index,
1494 .wrk_map_index = 0 /* default wrk */
1496 if (vnet_unlisten (&a))
1497 clib_warning ("unlisten errored");
1499 quic_release_crypto_context (lctx->crypto_context_index,
1500 0 /* thread_index */ );
1501 quic_ctx_free (lctx);
1505 static transport_connection_t *
1506 quic_connection_get (u32 ctx_index, u32 thread_index)
1509 ctx = quic_ctx_get (ctx_index, thread_index);
1510 return &ctx->connection;
1513 static transport_connection_t *
1514 quic_listener_get (u32 listener_index)
1516 QUIC_DBG (2, "Called quic_listener_get");
1518 ctx = quic_ctx_get (listener_index, 0);
1519 return &ctx->connection;
1523 format_quic_ctx (u8 * s, va_list * args)
1525 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1526 u32 verbose = va_arg (*args, u32);
1531 str = format (str, "[#%d][Q] ", ctx->c_thread_index);
1533 if (quic_ctx_is_listener (ctx))
1534 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1535 else if (quic_ctx_is_stream (ctx))
1536 str = format (str, "Stream %ld conn %d",
1537 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1538 else /* connection */
1539 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1540 ctx->udp_session_handle);
1542 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1543 ctx->parent_app_wrk_id);
1546 s = format (s, "%-" SESSION_CLI_ID_LEN "s%-" SESSION_CLI_STATE_LEN "d",
1547 str, ctx->conn_state);
1549 s = format (s, "%s\n", str);
1555 format_quic_connection (u8 * s, va_list * args)
1557 u32 qc_index = va_arg (*args, u32);
1558 u32 thread_index = va_arg (*args, u32);
1559 u32 verbose = va_arg (*args, u32);
1560 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1561 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1566 format_quic_half_open (u8 * s, va_list * args)
1568 u32 qc_index = va_arg (*args, u32);
1569 u32 thread_index = va_arg (*args, u32);
1570 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1571 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1572 ctx->parent_app_id);
1578 format_quic_listener (u8 * s, va_list * args)
1580 u32 tci = va_arg (*args, u32);
1581 u32 thread_index = va_arg (*args, u32);
1582 u32 verbose = va_arg (*args, u32);
1583 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1584 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1588 /* Session layer callbacks */
1591 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1592 ip46_address_t * addr, u16 port, u8 is_ip4)
1596 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1597 sa4->sin_family = AF_INET;
1598 sa4->sin_port = port;
1599 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1600 *salen = sizeof (struct sockaddr_in);
1604 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1605 sa6->sin6_family = AF_INET6;
1606 sa6->sin6_port = port;
1607 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1608 *salen = sizeof (struct sockaddr_in6);
1613 quic_on_quic_session_connected (quic_ctx_t * ctx)
1615 session_t *quic_session;
1616 app_worker_t *app_wrk;
1617 u32 ctx_id = ctx->c_c_index;
1618 u32 thread_index = ctx->c_thread_index;
1621 quic_session = session_alloc (thread_index);
1623 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1624 ctx->c_s_index = quic_session->session_index;
1625 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1626 quic_session->connection_index = ctx->c_c_index;
1627 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1628 quic_session->session_type =
1629 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1631 /* If quic session connected fails, immediatly close connection */
1632 app_wrk = app_worker_get (ctx->parent_app_wrk_id);
1633 if ((rv = app_worker_init_connected (app_wrk, quic_session)))
1635 QUIC_ERR ("failed to app_worker_init_connected");
1636 quic_proto_on_close (ctx_id, thread_index);
1637 app_worker_connect_notify (app_wrk, NULL, rv, ctx->client_opaque);
1641 quic_session->session_state = SESSION_STATE_CONNECTING;
1642 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1643 SESSION_E_NONE, ctx->client_opaque)))
1645 QUIC_ERR ("failed to notify app %d", rv);
1646 quic_proto_on_close (ctx_id, thread_index);
1650 /* If the app opens a stream in its callback it may invalidate ctx */
1651 ctx = quic_ctx_get (ctx_id, thread_index);
1653 * app_worker_connect_notify() might have reallocated pool, reload
1654 * quic_session pointer
1656 quic_session = session_get (ctx->c_s_index, thread_index);
1657 quic_session->session_state = SESSION_STATE_LISTENING;
1661 quic_check_quic_session_connected (quic_ctx_t * ctx)
1663 /* Called when we need to trigger quic session connected
1664 * we may call this function on the server side / at
1667 /* Conn may be set to null if the connection is terminated */
1668 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1670 if (!quicly_connection_is_ready (ctx->conn))
1672 ctx->conn_state = QUIC_CONN_STATE_READY;
1673 if (!quicly_is_client (ctx->conn))
1675 quic_on_quic_session_connected (ctx);
1679 quic_update_conn_ctx (quicly_conn_t * conn, quicly_context_t * quicly_context)
1681 /* we need to update the quicly_conn on migrate
1682 * as it contains a pointer to the crypto context */
1683 ptls_context_t **tls;
1684 quicly_context_t **_quicly_context;
1685 _quicly_context = (quicly_context_t **) conn;
1686 *_quicly_context = quicly_context;
1687 tls = (ptls_context_t **) quicly_get_tls (conn);
1688 *tls = quicly_context->tls;
1692 quic_receive_connection (void *arg)
1694 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1695 quic_ctx_t *temp_ctx, *new_ctx;
1696 clib_bihash_kv_16_8_t kv;
1697 quicly_conn_t *conn;
1698 quicly_context_t *quicly_context;
1699 session_t *udp_session;
1702 new_ctx_id = quic_ctx_alloc (thread_index);
1703 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1705 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1708 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1709 clib_mem_free (temp_ctx);
1711 new_ctx->c_thread_index = thread_index;
1712 new_ctx->c_c_index = new_ctx_id;
1713 quic_acquire_crypto_context (new_ctx);
1715 conn = new_ctx->conn;
1716 quicly_context = quic_get_quicly_ctx_from_ctx (new_ctx);
1717 quic_update_conn_ctx (conn, quicly_context);
1719 quic_store_conn_ctx (conn, new_ctx);
1720 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1721 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1722 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1723 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1724 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1725 quic_update_timer (new_ctx);
1727 /* Trigger write on this connection if necessary */
1728 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1729 udp_session->opaque = new_ctx_id;
1730 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1731 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1732 quic_set_udp_tx_evt (udp_session);
1736 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1738 quic_ctx_t *ctx, *temp_ctx;
1739 u32 thread_index = vlib_get_thread_index ();
1741 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1743 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1744 QUIC_ASSERT (temp_ctx != NULL);
1745 ctx = quic_ctx_get (ctx_index, thread_index);
1747 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1749 quic_stop_ctx_timer (ctx);
1750 quic_release_crypto_context (ctx->crypto_context_index, thread_index);
1751 quic_ctx_free (ctx);
1753 /* Send connection to destination thread */
1754 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1759 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1760 session_t * udp_session,
1761 session_error_t err)
1763 QUIC_DBG (2, "QSession is now connected (id %u)",
1764 udp_session->session_index);
1765 /* This should always be called before quic_connect returns since UDP always
1766 * connects instantly. */
1767 clib_bihash_kv_16_8_t kv;
1768 struct sockaddr_in6 sa6;
1769 struct sockaddr *sa = (struct sockaddr *) &sa6;
1771 transport_connection_t *tc;
1772 app_worker_t *app_wrk;
1773 quicly_conn_t *conn;
1775 u32 thread_index = vlib_get_thread_index ();
1777 quicly_context_t *quicly_ctx;
1780 ctx = quic_ctx_get (ctx_index, thread_index);
1784 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1787 api_context = ctx->c_s_index;
1788 app_worker_connect_notify (app_wrk, 0, SESSION_E_NONE, api_context);
1793 ctx->c_thread_index = thread_index;
1794 ctx->c_c_index = ctx_index;
1796 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1797 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1799 ctx->udp_session_handle = session_handle (udp_session);
1800 udp_session->opaque = ctx_index;
1802 /* Init QUIC lib connection
1803 * Generate required sockaddr & salen */
1804 tc = session_get_transport (udp_session);
1805 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1807 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1808 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1809 sa, NULL, &quic_main.wrk_ctx[thread_index].next_cid,
1810 ptls_iovec_init (NULL, 0), &quic_main.hs_properties,
1812 ++quic_main.wrk_ctx[thread_index].next_cid.master_id;
1813 /* Save context handle in quicly connection */
1814 quic_store_conn_ctx (ctx->conn, ctx);
1817 /* Register connection in connections map */
1819 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1820 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1821 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1822 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1824 /* UDP stack quirk? preemptively transfer connection if that happens */
1825 if (udp_session->thread_index != thread_index)
1826 quic_transfer_connection (ctx_index, udp_session->thread_index);
1828 quic_send_packets (ctx);
1834 quic_udp_session_disconnect_callback (session_t * s)
1836 clib_warning ("UDP session disconnected???");
1840 quic_udp_session_cleanup_callback (session_t * udp_session,
1841 session_cleanup_ntf_t ntf)
1845 if (ntf != SESSION_CLEANUP_SESSION)
1848 ctx = quic_ctx_get (udp_session->opaque, udp_session->thread_index);
1849 quic_stop_ctx_timer (ctx);
1850 quic_release_crypto_context (ctx->crypto_context_index,
1851 ctx->c_thread_index);
1852 quic_ctx_free (ctx);
1856 quic_udp_session_reset_callback (session_t * s)
1858 clib_warning ("UDP session reset???");
1862 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1864 u32 new_thread = session_thread_from_handle (new_sh);
1867 QUIC_DBG (2, "Session %x migrated to %lx", s->session_index, new_sh);
1868 QUIC_ASSERT (vlib_get_thread_index () == s->thread_index);
1869 ctx = quic_ctx_get (s->opaque, s->thread_index);
1870 QUIC_ASSERT (ctx->udp_session_handle == session_handle (s));
1872 ctx->udp_session_handle = new_sh;
1874 s->opaque = 0xfeedface;
1876 quic_transfer_connection (ctx->c_c_index, new_thread);
1880 quic_udp_session_accepted_callback (session_t * udp_session)
1882 /* New UDP connection, try to accept it */
1884 quic_ctx_t *ctx, *lctx;
1885 session_t *udp_listen_session;
1886 u32 thread_index = vlib_get_thread_index ();
1888 udp_listen_session =
1889 listen_session_get_from_handle (udp_session->listener_handle);
1891 ctx_index = quic_ctx_alloc (thread_index);
1892 ctx = quic_ctx_get (ctx_index, thread_index);
1893 ctx->c_thread_index = udp_session->thread_index;
1894 ctx->c_c_index = ctx_index;
1895 ctx->c_s_index = QUIC_SESSION_INVALID;
1896 ctx->udp_session_handle = session_handle (udp_session);
1897 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1898 ctx->listener_ctx_id = udp_listen_session->opaque;
1899 lctx = quic_ctx_get (udp_listen_session->opaque,
1900 udp_listen_session->thread_index);
1901 ctx->udp_is_ip4 = lctx->c_is_ip4;
1902 ctx->parent_app_id = lctx->parent_app_id;
1903 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1904 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1905 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1906 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1908 ctx->crypto_engine = lctx->crypto_engine;
1909 ctx->ckpair_index = lctx->ckpair_index;
1910 quic_acquire_crypto_context (ctx);
1911 udp_session->opaque = ctx_index;
1913 /* TODO timeout to delete these if they never connect */
1918 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1920 /* No-op for builtin */
1925 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1927 /* No-op for builtin */
1932 quic_custom_app_rx_callback (transport_connection_t * tc)
1935 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1936 QUIC_DBG (3, "Received app READ notification");
1937 quic_ack_rx_data (stream_session);
1938 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1940 /* Need to send packets (acks may never be sent otherwise) */
1941 ctx = quic_ctx_get (stream_session->connection_index,
1942 stream_session->thread_index);
1943 quic_send_packets (ctx);
1948 quic_custom_tx_callback (void *s, transport_send_params_t * sp)
1950 session_t *stream_session = (session_t *) s;
1951 quic_stream_data_t *stream_data;
1952 quicly_stream_t *stream;
1958 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1960 ctx = quic_ctx_get (stream_session->connection_index,
1961 stream_session->thread_index);
1962 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1964 goto tx_end; /* Most probably a reschedule */
1967 QUIC_DBG (3, "Stream TX event");
1968 quic_ack_rx_data (stream_session);
1969 stream = ctx->stream;
1970 if (!quicly_sendstate_is_open (&stream->sendstate))
1972 QUIC_ERR ("Warning: tried to send on closed stream");
1976 stream_data = (quic_stream_data_t *) stream->data;
1977 max_deq = svm_fifo_max_dequeue (stream_session->tx_fifo);
1978 QUIC_ASSERT (max_deq >= stream_data->app_tx_data_len);
1979 if (max_deq == stream_data->app_tx_data_len)
1981 QUIC_DBG (3, "TX but no data %d / %d", max_deq,
1982 stream_data->app_tx_data_len);
1985 stream_data->app_tx_data_len = max_deq;
1986 rv = quicly_stream_sync_sendbuf (stream, 1);
1990 quic_send_packets (ctx);
1995 * Returns 0 if a matching connection is found and is on the right thread.
1996 * Otherwise returns -1.
1997 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
2001 quic_find_packet_ctx (quic_rx_packet_ctx_t * pctx, u32 caller_thread_index)
2003 clib_bihash_kv_16_8_t kv;
2004 clib_bihash_16_8_t *h;
2006 u32 index, thread_id;
2008 h = &quic_main.connection_hash;
2009 quic_make_connection_key (&kv, &pctx->packet.cid.dest.plaintext);
2010 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
2012 if (clib_bihash_search_16_8 (h, &kv, &kv))
2014 QUIC_DBG (3, "connection not found");
2015 return QUIC_PACKET_TYPE_NONE;
2018 index = kv.value & UINT32_MAX;
2019 thread_id = kv.value >> 32;
2020 /* Check if this connection belongs to this thread, otherwise
2021 * ask for it to be moved */
2022 if (thread_id != caller_thread_index)
2024 QUIC_DBG (2, "Connection is on wrong thread");
2025 /* Cannot make full check with quicly_is_destination... */
2026 pctx->ctx_index = index;
2027 pctx->thread_index = thread_id;
2028 return QUIC_PACKET_TYPE_MIGRATE;
2030 ctx = quic_ctx_get (index, vlib_get_thread_index ());
2033 QUIC_ERR ("ctx has no conn");
2034 return QUIC_PACKET_TYPE_NONE;
2036 if (!quicly_is_destination (ctx->conn, NULL, &pctx->sa, &pctx->packet))
2037 return QUIC_PACKET_TYPE_NONE;
2039 QUIC_DBG (3, "Connection found");
2040 pctx->ctx_index = index;
2041 pctx->thread_index = thread_id;
2042 return QUIC_PACKET_TYPE_RECEIVE;
2046 quic_accept_connection (quic_rx_packet_ctx_t * pctx)
2048 quicly_context_t *quicly_ctx;
2049 session_t *quic_session;
2050 clib_bihash_kv_16_8_t kv;
2051 app_worker_t *app_wrk;
2052 quicly_conn_t *conn;
2057 /* new connection, accept and create context if packet is valid
2058 * TODO: check if socket is actually listening? */
2059 ctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2060 if (ctx->c_s_index != QUIC_SESSION_INVALID)
2062 QUIC_DBG (2, "already accepted ctx 0x%x", ctx->c_s_index);
2066 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2067 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, &pctx->sa,
2068 &pctx->packet, NULL,
2069 &quic_main.wrk_ctx[pctx->thread_index].next_cid,
2072 /* Invalid packet, pass */
2073 assert (conn == NULL);
2074 QUIC_ERR ("Accept failed with %U", quic_format_err, rv);
2075 /* TODO: cleanup created quic ctx and UDP session */
2078 assert (conn != NULL);
2080 ++quic_main.wrk_ctx[pctx->thread_index].next_cid.master_id;
2081 /* Save ctx handle in quicly connection */
2082 quic_store_conn_ctx (conn, ctx);
2085 quic_session = session_alloc (ctx->c_thread_index);
2086 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
2087 session_handle (quic_session), ctx->c_c_index);
2088 quic_session->session_state = SESSION_STATE_LISTENING;
2089 ctx->c_s_index = quic_session->session_index;
2091 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
2093 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
2094 quic_session->connection_index = ctx->c_c_index;
2095 quic_session->session_type =
2096 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
2097 quic_session->listener_handle = lctx->c_s_index;
2099 /* Register connection in connections map */
2100 quic_make_connection_key (&kv, quicly_get_master_id (conn));
2101 kv.value = ((u64) pctx->thread_index) << 32 | (u64) pctx->ctx_index;
2102 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2103 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2105 /* If notify fails, reset connection immediatly */
2106 if ((rv = app_worker_init_accepted (quic_session)))
2108 QUIC_ERR ("failed to allocate fifos");
2109 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2113 app_wrk = app_worker_get (quic_session->app_wrk_index);
2114 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
2116 QUIC_ERR ("failed to notify accept worker app");
2117 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2121 ctx->conn_state = QUIC_CONN_STATE_READY;
2125 quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx)
2127 /* short header packet; potentially a dead connection. No need to check the
2128 * length of the incoming packet, because loop is prevented by authenticating
2129 * the CID (by checking node_id and thread_id). If the peer is also sending a
2130 * reset, then the next CID is highly likely to contain a non-authenticating
2132 QUIC_DBG (2, "Sending stateless reset");
2134 quicly_datagram_t *dgram;
2135 session_t *udp_session;
2136 quicly_context_t *quicly_ctx;
2137 if (pctx->packet.cid.dest.plaintext.node_id != 0
2138 || pctx->packet.cid.dest.plaintext.thread_id != 0)
2140 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2141 dgram = quicly_send_stateless_reset (quicly_ctx, &pctx->sa, NULL,
2142 &pctx->packet.cid.dest.plaintext);
2145 udp_session = session_get_from_handle (udp_session_handle);
2146 rv = quic_send_datagram (udp_session, dgram);
2147 quic_set_udp_tx_evt (udp_session);
2152 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
2153 u32 fifo_offset, quic_rx_packet_ctx_t * pctx)
2157 u32 thread_index = vlib_get_thread_index ();
2158 u32 cur_deq = svm_fifo_max_dequeue (f) - fifo_offset;
2159 quicly_context_t *quicly_ctx;
2160 session_t *udp_session;
2163 ret = svm_fifo_peek (f, fifo_offset,
2164 SESSION_CONN_HDR_LEN, (u8 *) & pctx->ph);
2165 QUIC_ASSERT (ret == SESSION_CONN_HDR_LEN);
2166 QUIC_ASSERT (pctx->ph.data_offset == 0);
2167 full_len = pctx->ph.data_length + SESSION_CONN_HDR_LEN;
2168 if (full_len > cur_deq)
2170 QUIC_ERR ("Not enough data in fifo RX");
2174 /* Quicly can read len bytes from the fifo at offset:
2175 * ph.data_offset + SESSION_CONN_HDR_LEN */
2176 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + fifo_offset,
2177 pctx->ph.data_length, pctx->data);
2178 if (ret != pctx->ph.data_length)
2180 QUIC_ERR ("Not enough data peeked in RX");
2184 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
2185 quic_build_sockaddr (&pctx->sa, &pctx->salen, &pctx->ph.rmt_ip,
2186 pctx->ph.rmt_port, pctx->ph.is_ip4);
2187 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2188 plen = quicly_decode_packet (quicly_ctx, &pctx->packet,
2189 pctx->data, pctx->ph.data_length);
2191 if (plen == SIZE_MAX)
2196 rv = quic_find_packet_ctx (pctx, thread_index);
2197 if (rv == QUIC_PACKET_TYPE_RECEIVE)
2199 pctx->ptype = QUIC_PACKET_TYPE_RECEIVE;
2200 if (quic_main.vnet_crypto_enabled)
2202 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, thread_index);
2203 quic_crypto_decrypt_packet (qctx, pctx);
2207 else if (rv == QUIC_PACKET_TYPE_MIGRATE)
2209 pctx->ptype = QUIC_PACKET_TYPE_MIGRATE;
2210 /* Connection found but on wrong thread, ask move */
2212 else if (QUICLY_PACKET_IS_LONG_HEADER (pctx->packet.octets.base[0]))
2214 pctx->ptype = QUIC_PACKET_TYPE_ACCEPT;
2215 udp_session = session_get_from_handle (udp_session_handle);
2216 pctx->ctx_index = udp_session->opaque;
2217 pctx->thread_index = thread_index;
2221 pctx->ptype = QUIC_PACKET_TYPE_RESET;
2227 quic_udp_session_rx_callback (session_t * udp_session)
2229 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2230 quic_main_t *qm = &quic_main;
2231 quic_ctx_t *ctx = NULL, *prev_ctx = NULL;
2232 svm_fifo_t *f = udp_session->rx_fifo;
2234 u64 udp_session_handle = session_handle (udp_session);
2236 u32 thread_index = vlib_get_thread_index ();
2237 u32 cur_deq, fifo_offset, max_packets, i;
2239 quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_BATCH_PACKETS];
2241 if (udp_session->flags & SESSION_F_IS_MIGRATING)
2243 QUIC_DBG (3, "RX on migrating udp session");
2248 max_deq = svm_fifo_max_dequeue (f);
2253 max_packets = QUIC_RCV_MAX_BATCH_PACKETS;
2256 clib_memset (packets_ctx, 0xfa,
2257 QUIC_RCV_MAX_BATCH_PACKETS * sizeof (quic_rx_packet_ctx_t));
2260 for (i = 0; i < max_packets; i++)
2262 packets_ctx[i].thread_index = UINT32_MAX;
2263 packets_ctx[i].ctx_index = UINT32_MAX;
2264 packets_ctx[i].ptype = QUIC_PACKET_TYPE_DROP;
2266 cur_deq = max_deq - fifo_offset;
2269 max_packets = i + 1;
2272 if (cur_deq < SESSION_CONN_HDR_LEN)
2274 fifo_offset = max_deq;
2275 max_packets = i + 1;
2276 QUIC_ERR ("Fifo %d < header size in RX", cur_deq);
2279 rv = quic_process_one_rx_packet (udp_session_handle, f,
2280 fifo_offset, &packets_ctx[i]);
2281 if (packets_ctx[i].ptype != QUIC_PACKET_TYPE_MIGRATE)
2282 fifo_offset += SESSION_CONN_HDR_LEN + packets_ctx[i].ph.data_length;
2285 max_packets = i + 1;
2290 quic_crypto_batch_rx_packets (&qm->
2291 wrk_ctx[thread_index].crypto_context_batch);
2293 for (i = 0; i < max_packets; i++)
2295 switch (packets_ctx[i].ptype)
2297 case QUIC_PACKET_TYPE_RECEIVE:
2298 ctx = quic_ctx_get (packets_ctx[i].ctx_index, thread_index);
2299 rv = quicly_receive (ctx->conn, NULL, &packets_ctx[i].sa,
2300 &packets_ctx[i].packet);
2301 if (rv && rv != QUICLY_ERROR_PACKET_IGNORED)
2303 QUIC_ERR ("quicly_receive return error %U",
2304 quic_format_err, rv);
2307 case QUIC_PACKET_TYPE_ACCEPT:
2308 quic_accept_connection (&packets_ctx[i]);
2310 case QUIC_PACKET_TYPE_RESET:
2311 quic_reset_connection (udp_session_handle, &packets_ctx[i]);
2315 ctx = prev_ctx = NULL;
2316 for (i = 0; i < max_packets; i++)
2319 switch (packets_ctx[i].ptype)
2321 case QUIC_PACKET_TYPE_RECEIVE:
2322 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2323 packets_ctx[i].thread_index);
2324 quic_check_quic_session_connected (ctx);
2325 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2326 packets_ctx[i].thread_index);
2328 case QUIC_PACKET_TYPE_ACCEPT:
2329 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2330 packets_ctx[i].thread_index);
2333 continue; /* this exits the for loop since other packet types are
2334 necessarily the last in the batch */
2336 if (ctx != prev_ctx)
2337 quic_send_packets (ctx);
2340 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2341 f = udp_session->rx_fifo;
2342 svm_fifo_dequeue_drop (f, fifo_offset);
2344 if (svm_fifo_max_dequeue (f))
2351 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2352 transport_endpoint_t * tep, u8 is_lcl)
2354 session_t *udp_session;
2355 if (!quic_ctx_is_stream (ctx))
2357 udp_session = session_get_from_handle (ctx->udp_session_handle);
2358 session_get_endpoint (udp_session, tep, is_lcl);
2363 quic_get_transport_listener_endpoint (u32 listener_index,
2364 transport_endpoint_t * tep, u8 is_lcl)
2367 app_listener_t *app_listener;
2368 session_t *udp_listen_session;
2369 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2370 if (quic_ctx_is_listener (ctx))
2372 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2373 udp_listen_session = app_listener_get_session (app_listener);
2374 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2376 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2380 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2381 transport_endpoint_t * tep, u8 is_lcl)
2384 ctx = quic_ctx_get (ctx_index, thread_index);
2385 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2389 static session_cb_vft_t quic_app_cb_vft = {
2390 .session_accept_callback = quic_udp_session_accepted_callback,
2391 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2392 .session_connected_callback = quic_udp_session_connected_callback,
2393 .session_reset_callback = quic_udp_session_reset_callback,
2394 .session_migrate_callback = quic_udp_session_migrate_callback,
2395 .add_segment_callback = quic_add_segment_callback,
2396 .del_segment_callback = quic_del_segment_callback,
2397 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2398 .session_cleanup_callback = quic_udp_session_cleanup_callback,
2399 .app_cert_key_pair_delete_callback = quic_app_cert_key_pair_delete_callback,
2402 static const transport_proto_vft_t quic_proto = {
2403 .connect = quic_connect,
2404 .close = quic_proto_on_close,
2405 .start_listen = quic_start_listen,
2406 .stop_listen = quic_stop_listen,
2407 .get_connection = quic_connection_get,
2408 .get_listener = quic_listener_get,
2409 .update_time = quic_update_time,
2410 .app_rx_evt = quic_custom_app_rx_callback,
2411 .custom_tx = quic_custom_tx_callback,
2412 .format_connection = format_quic_connection,
2413 .format_half_open = format_quic_half_open,
2414 .format_listener = format_quic_listener,
2415 .get_transport_endpoint = quic_get_transport_endpoint,
2416 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2417 .transport_options = {
2420 .tx_type = TRANSPORT_TX_INTERNAL,
2421 .service_type = TRANSPORT_SERVICE_APP,
2426 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
2427 static quicly_closed_by_peer_t on_closed_by_peer = { quic_on_closed_by_peer };
2428 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
2431 quic_register_cipher_suite (crypto_engine_type_t type,
2432 ptls_cipher_suite_t ** ciphers)
2434 quic_main_t *qm = &quic_main;
2435 vec_validate (qm->quic_ciphers, type);
2436 clib_bitmap_set (qm->available_crypto_engines, type, 1);
2437 qm->quic_ciphers[type] = ciphers;
2441 quic_update_fifo_size ()
2443 quic_main_t *qm = &quic_main;
2444 segment_manager_props_t *seg_mgr_props =
2445 application_get_segment_manager_properties (qm->app_index);
2450 ("error while getting segment_manager_props_t, can't update fifo-size");
2454 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2455 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2458 static clib_error_t *
2459 quic_init (vlib_main_t * vm)
2461 u32 segment_size = 256 << 20;
2462 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2463 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2464 vnet_app_attach_args_t _a, *a = &_a;
2465 u64 options[APP_OPTIONS_N_OPTIONS];
2466 quic_main_t *qm = &quic_main;
2469 num_threads = 1 /* main thread */ + vtm->n_threads;
2471 clib_memset (a, 0, sizeof (*a));
2472 clib_memset (options, 0, sizeof (options));
2474 a->session_cb_vft = &quic_app_cb_vft;
2475 a->api_client_index = APP_INVALID_INDEX;
2476 a->options = options;
2477 a->name = format (0, "quic");
2478 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2479 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2480 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2481 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2482 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2483 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2484 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2485 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2487 if (vnet_application_attach (a))
2489 clib_warning ("failed to attach quic app");
2490 return clib_error_return (0, "failed to attach quic app");
2493 vec_validate (qm->ctx_pool, num_threads - 1);
2494 vec_validate (qm->wrk_ctx, num_threads - 1);
2496 for (i = 0; i < num_threads; i++)
2498 qm->wrk_ctx[i].next_cid.thread_id = i;
2499 tw = &qm->wrk_ctx[i].timer_wheel;
2500 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2501 1e-3 /* timer period 1ms */ , ~0);
2502 tw->last_run_time = vlib_time_now (vlib_get_main ());
2503 clib_bihash_init_24_8 (&qm->wrk_ctx[i].crypto_context_hash,
2504 "quic crypto contexts", 64, 128 << 10);
2506 qm->wrk_ctx[i].crypto_context_batch.nb_rx_packets = 0;
2507 qm->wrk_ctx[i].crypto_context_batch.nb_tx_packets = 0;
2510 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2513 qm->app_index = a->app_index;
2514 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2515 / QUIC_TSTAMP_RESOLUTION;
2516 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2518 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2519 FIB_PROTOCOL_IP4, ~0);
2520 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2521 FIB_PROTOCOL_IP6, ~0);
2523 clib_bitmap_alloc (qm->available_crypto_engines,
2524 app_crypto_engine_n_types ());
2525 quic_register_cipher_suite (CRYPTO_ENGINE_VPP, quic_crypto_cipher_suites);
2526 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2527 ptls_openssl_cipher_suites);
2528 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2529 qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY;
2530 clib_rwlock_init (&qm->crypto_keys_quic_rw_lock);
2532 vnet_crypto_main_t *cm = &crypto_main;
2533 if (vec_len (cm->engines) == 0)
2534 qm->vnet_crypto_enabled = 0;
2536 qm->vnet_crypto_enabled = 1;
2542 VLIB_INIT_FUNCTION (quic_init);
2544 static clib_error_t *
2545 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2546 unformat_input_t * input,
2547 vlib_cli_command_t * cmd)
2549 unformat_input_t _line_input, *line_input = &_line_input;
2550 quic_main_t *qm = &quic_main;
2551 clib_error_t *e = 0;
2553 if (!unformat_user (input, unformat_line_input, line_input))
2556 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2558 if (unformat (line_input, "vpp"))
2559 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2560 else if (unformat (line_input, "picotls"))
2561 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2564 e = clib_error_return (0, "unknown input '%U'",
2565 format_unformat_error, line_input);
2570 unformat_free (line_input);
2574 u64 quic_fifosize = 0;
2575 static clib_error_t *
2576 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2577 unformat_input_t * input,
2578 vlib_cli_command_t * cmd)
2580 quic_main_t *qm = &quic_main;
2581 unformat_input_t _line_input, *line_input = &_line_input;
2584 if (!unformat_user (input, unformat_line_input, line_input))
2587 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2589 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
2591 if (tmp >= 0x100000000ULL)
2593 return clib_error_return
2594 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2596 qm->udp_fifo_size = tmp;
2597 quic_update_fifo_size ();
2600 return clib_error_return (0, "unknown input '%U'",
2601 format_unformat_error, line_input);
2608 quic_get_counter_value (u32 event_code)
2612 vlib_error_main_t *em;
2618 vm = vlib_get_main ();
2619 em = &vm->error_main;
2620 n = vlib_get_node (vm, quic_input_node.index);
2623 foreach_vlib_main(({
2624 em = &this_vlib_main->error_main;
2625 i = n->error_heap_index + code;
2626 c = em->counters[i];
2628 if (i < vec_len (em->counters_last_clear))
2629 c -= em->counters_last_clear[i];
2638 quic_show_aggregated_stats (vlib_main_t * vm)
2640 u32 num_workers = vlib_num_workers ();
2641 quic_main_t *qm = &quic_main;
2642 quic_ctx_t *ctx = NULL;
2643 quicly_stats_t st, agg_stats;
2644 u32 i, nconn = 0, nstream = 0;
2646 clib_memset (&agg_stats, 0, sizeof (agg_stats));
2647 for (i = 0; i < num_workers + 1; i++)
2650 pool_foreach (ctx, qm->ctx_pool[i],
2652 if (quic_ctx_is_conn (ctx) && ctx->conn)
2654 quicly_get_stats (ctx->conn, &st);
2655 agg_stats.rtt.smoothed += st.rtt.smoothed;
2656 agg_stats.rtt.minimum += st.rtt.minimum;
2657 agg_stats.rtt.variance += st.rtt.variance;
2658 agg_stats.num_packets.received += st.num_packets.received;
2659 agg_stats.num_packets.sent += st.num_packets.sent;
2660 agg_stats.num_packets.lost += st.num_packets.lost;
2661 agg_stats.num_packets.ack_received += st.num_packets.ack_received;
2662 agg_stats.num_bytes.received += st.num_bytes.received;
2663 agg_stats.num_bytes.sent += st.num_bytes.sent;
2666 else if (quic_ctx_is_stream (ctx))
2671 vlib_cli_output (vm, "-------- Connections --------");
2672 vlib_cli_output (vm, "Current: %u", nconn);
2673 vlib_cli_output (vm, "Opened: %d",
2674 quic_get_counter_value (QUIC_ERROR_OPENED_CONNECTION));
2675 vlib_cli_output (vm, "Closed: %d",
2676 quic_get_counter_value (QUIC_ERROR_CLOSED_CONNECTION));
2677 vlib_cli_output (vm, "---------- Streams ----------");
2678 vlib_cli_output (vm, "Current: %u", nstream);
2679 vlib_cli_output (vm, "Opened: %d",
2680 quic_get_counter_value (QUIC_ERROR_OPENED_STREAM));
2681 vlib_cli_output (vm, "Closed: %d",
2682 quic_get_counter_value (QUIC_ERROR_CLOSED_STREAM));
2683 vlib_cli_output (vm, "---------- Packets ----------");
2684 vlib_cli_output (vm, "RX Total: %d",
2685 quic_get_counter_value (QUIC_ERROR_RX_PACKETS));
2686 vlib_cli_output (vm, "RX 0RTT: %d",
2687 quic_get_counter_value (QUIC_ERROR_ZERO_RTT_RX_PACKETS));
2688 vlib_cli_output (vm, "RX 1RTT: %d",
2689 quic_get_counter_value (QUIC_ERROR_ONE_RTT_RX_PACKETS));
2690 vlib_cli_output (vm, "TX Total: %d",
2691 quic_get_counter_value (QUIC_ERROR_TX_PACKETS));
2692 vlib_cli_output (vm, "----------- Stats -----------");
2693 vlib_cli_output (vm, "Min RTT %f",
2694 nconn > 0 ? agg_stats.rtt.minimum / nconn : 0);
2695 vlib_cli_output (vm, "Smoothed RTT %f",
2696 nconn > 0 ? agg_stats.rtt.smoothed / nconn : 0);
2697 vlib_cli_output (vm, "Variance on RTT %f",
2698 nconn > 0 ? agg_stats.rtt.variance / nconn : 0);
2699 vlib_cli_output (vm, "Packets Received %lu",
2700 agg_stats.num_packets.received);
2701 vlib_cli_output (vm, "Packets Sent %lu", agg_stats.num_packets.sent);
2702 vlib_cli_output (vm, "Packets Lost %lu", agg_stats.num_packets.lost);
2703 vlib_cli_output (vm, "Packets Acks %lu",
2704 agg_stats.num_packets.ack_received);
2705 vlib_cli_output (vm, "RX bytes %lu", agg_stats.num_bytes.received);
2706 vlib_cli_output (vm, "TX bytes %lu", agg_stats.num_bytes.sent);
2710 quic_format_quicly_conn_id (u8 * s, va_list * args)
2712 quicly_cid_plaintext_t *mid = va_arg (*args, quicly_cid_plaintext_t *);
2713 s = format (s, "C%x_%x", mid->master_id, mid->thread_id);
2718 quic_format_quicly_stream_id (u8 * s, va_list * args)
2720 quicly_stream_t *stream = va_arg (*args, quicly_stream_t *);
2722 format (s, "%U S%lx", quic_format_quicly_conn_id,
2723 quicly_get_master_id (stream->conn), stream->stream_id);
2728 quic_format_listener_ctx (u8 * s, va_list * args)
2730 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2731 s = format (s, "[#%d][%x][Listener]", ctx->c_thread_index, ctx->c_c_index);
2736 quic_format_connection_ctx (u8 * s, va_list * args)
2738 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2739 quicly_stats_t quicly_stats;
2741 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2745 s = format (s, "- no conn -\n");
2748 s = format (s, "[%U]",
2749 quic_format_quicly_conn_id, quicly_get_master_id (ctx->conn));
2750 quicly_get_stats (ctx->conn, &quicly_stats);
2752 s = format (s, "[RTT >%3d, ~%3d, V%3d, last %3d]",
2753 quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
2754 quicly_stats.rtt.variance, quicly_stats.rtt.latest);
2755 s = format (s, " TX:%d RX:%d loss:%d ack:%d",
2756 quicly_stats.num_packets.sent,
2757 quicly_stats.num_packets.received,
2758 quicly_stats.num_packets.lost,
2759 quicly_stats.num_packets.ack_received);
2764 quic_format_stream_ctx (u8 * s, va_list * args)
2766 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2767 session_t *stream_session;
2768 quicly_stream_t *stream = ctx->stream;
2771 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2772 s = format (s, "[%U]", quic_format_quicly_stream_id, stream);
2774 stream_session = session_get_if_valid (ctx->c_s_index, ctx->c_thread_index);
2775 if (!stream_session)
2777 s = format (s, "- no session -\n");
2780 txs = svm_fifo_max_dequeue (stream_session->tx_fifo);
2781 rxs = svm_fifo_max_dequeue (stream_session->rx_fifo);
2782 s = format (s, "[rx %d tx %d]\n", rxs, txs);
2786 static clib_error_t *
2787 quic_show_connections_command_fn (vlib_main_t * vm,
2788 unformat_input_t * input,
2789 vlib_cli_command_t * cmd)
2791 unformat_input_t _line_input, *line_input = &_line_input;
2792 u8 show_listeners = 0, show_conn = 0, show_stream = 0;
2793 u32 num_workers = vlib_num_workers ();
2794 quic_main_t *qm = &quic_main;
2795 clib_error_t *error = 0;
2796 quic_ctx_t *ctx = NULL;
2798 session_cli_return_if_not_enabled ();
2800 if (!unformat_user (input, unformat_line_input, line_input))
2802 quic_show_aggregated_stats (vm);
2806 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2808 if (unformat (line_input, "listener"))
2810 else if (unformat (line_input, "conn"))
2812 else if (unformat (line_input, "stream"))
2816 error = clib_error_return (0, "unknown input `%U'",
2817 format_unformat_error, line_input);
2822 for (int i = 0; i < num_workers + 1; i++)
2825 pool_foreach (ctx, qm->ctx_pool[i],
2827 if (quic_ctx_is_stream (ctx) && show_stream)
2828 vlib_cli_output (vm, "%U", quic_format_stream_ctx, ctx);
2829 else if (quic_ctx_is_listener (ctx) && show_listeners)
2830 vlib_cli_output (vm, "%U", quic_format_listener_ctx, ctx);
2831 else if (quic_ctx_is_conn (ctx) && show_conn)
2832 vlib_cli_output (vm, "%U", quic_format_connection_ctx, ctx);
2838 unformat_free (line_input);
2843 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) =
2845 .path = "quic set crypto api",
2846 .short_help = "quic set crypto api [picotls, vpp]",
2847 .function = quic_plugin_crypto_command_fn,
2849 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2851 .path = "quic set fifo-size",
2852 .short_help = "quic set fifo-size N[K|M|G] (default 64K)",
2853 .function = quic_plugin_set_fifo_size_command_fn,
2855 VLIB_CLI_COMMAND(quic_show_ctx_command, static)=
2857 .path = "show quic",
2858 .short_help = "show quic",
2859 .function = quic_show_connections_command_fn,
2861 VLIB_CLI_COMMAND (quic_list_crypto_context_command, static) =
2863 .path = "show quic crypto context",
2864 .short_help = "list quic crypto contextes",
2865 .function = quic_list_crypto_context_command_fn,
2867 VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) =
2869 .path = "set quic max_packets_per_key",
2870 .short_help = "set quic max_packets_per_key 16777216",
2871 .function = quic_set_max_packets_per_key_fn,
2873 VLIB_PLUGIN_REGISTER () =
2875 .version = VPP_BUILD_VER,
2876 .description = "Quic transport protocol",
2877 .default_disabled = 1,
2881 static clib_error_t *
2882 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2884 unformat_input_t _line_input, *line_input = &_line_input;
2885 quic_main_t *qm = &quic_main;
2886 clib_error_t *error = 0;
2890 qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2891 qm->udp_fifo_prealloc = 0;
2892 qm->connection_timeout = QUIC_DEFAULT_CONN_TIMEOUT;
2894 if (!unformat_user (input, unformat_line_input, line_input))
2897 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2899 if (unformat (input, "fifo-size %U", unformat_memory_size, &tmp))
2901 if (tmp >= 0x100000000ULL)
2903 error = clib_error_return (0,
2904 "fifo-size %llu (0x%llx) too large",
2908 qm->udp_fifo_size = tmp;
2910 else if (unformat (input, "conn-timeout %u", &i))
2911 qm->connection_timeout = i;
2912 else if (unformat (input, "fifo-prealloc %u", &i))
2913 qm->udp_fifo_prealloc = i;
2916 error = clib_error_return (0, "unknown input '%U'",
2917 format_unformat_error, line_input);
2922 unformat_free (line_input);
2926 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
2929 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
2930 vlib_frame_t * frame)
2936 VLIB_REGISTER_NODE (quic_input_node) =
2938 .function = quic_node_fn,
2939 .name = "quic-input",
2940 .vector_size = sizeof (u32),
2941 .type = VLIB_NODE_TYPE_INTERNAL,
2942 .n_errors = ARRAY_LEN (quic_error_strings),
2943 .error_strings = quic_error_strings,
2948 * fd.io coding-style-patch-verification: ON
2951 * eval: (c-set-style "gnu")