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));
449 get_stream_session_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;
829 stream_data = (quic_stream_data_t *) stream->data;
830 sctx = quic_ctx_get (stream_data->ctx_id, stream_data->thread_index);
831 stream_session = session_get (sctx->c_s_index, stream_data->thread_index);
832 f = stream_session->rx_fifo;
834 max_enq = svm_fifo_max_enqueue_prod (f);
835 QUIC_DBG (3, "Enqueuing %u at off %u in %u space", len, off, max_enq);
836 /* Handle duplicate packet/chunk from quicly */
837 if (off < stream_data->app_rx_data_len)
839 QUIC_DBG (3, "Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
840 "DUPLICATE PACKET (max_enq %u, len %u, "
841 "app_rx_data_len %u, off %u, ToBeNQ %u)",
842 stream_session->session_index,
843 stream_session->app_wrk_index,
844 stream_session->thread_index, f,
845 max_enq, len, stream_data->app_rx_data_len, off,
846 off - stream_data->app_rx_data_len + len);
849 if (PREDICT_FALSE ((off - stream_data->app_rx_data_len + len) > max_enq))
851 QUIC_ERR ("Session [idx %u, app_wrk %u, thread %u, rx-fifo 0x%llx]: "
852 "RX FIFO IS FULL (max_enq %u, len %u, "
853 "app_rx_data_len %u, off %u, ToBeNQ %u)",
854 stream_session->session_index,
855 stream_session->app_wrk_index,
856 stream_session->thread_index, f,
857 max_enq, len, stream_data->app_rx_data_len, off,
858 off - stream_data->app_rx_data_len + len);
859 return; /* This shouldn't happen */
861 if (off == stream_data->app_rx_data_len)
863 /* Streams live on the same thread so (f, stream_data) should stay consistent */
864 rlen = svm_fifo_enqueue (f, len, (u8 *) src);
865 QUIC_DBG (3, "Session [idx %u, app_wrk %u, ti %u, rx-fifo 0x%llx]: "
866 "Enqueuing %u (rlen %u) at off %u in %u space, ",
867 stream_session->session_index,
868 stream_session->app_wrk_index,
869 stream_session->thread_index, f, len, rlen, off, max_enq);
870 stream_data->app_rx_data_len += rlen;
871 QUIC_ASSERT (rlen >= len);
872 app_wrk = app_worker_get_if_valid (stream_session->app_wrk_index);
873 if (PREDICT_TRUE (app_wrk != 0))
875 rv = app_worker_lock_and_send_event (app_wrk, stream_session,
878 QUIC_ERR ("Failed to ping app for RX");
880 quic_ack_rx_data (stream_session);
884 rlen = svm_fifo_enqueue_with_offset (f,
885 off - stream_data->app_rx_data_len,
887 QUIC_ASSERT (rlen == 0);
893 quic_fifo_egress_shift (quicly_stream_t * stream, size_t delta)
895 quic_stream_data_t *stream_data;
896 session_t *stream_session;
900 stream_data = (quic_stream_data_t *) stream->data;
901 stream_session = get_stream_session_from_stream (stream);
902 f = stream_session->tx_fifo;
904 QUIC_ASSERT (stream_data->app_tx_data_len >= delta);
905 stream_data->app_tx_data_len -= delta;
906 rv = svm_fifo_dequeue_drop (f, delta);
907 QUIC_ASSERT (rv == delta);
909 rv = quicly_stream_sync_sendbuf (stream, 0);
914 quic_fifo_egress_emit (quicly_stream_t * stream, size_t off, void *dst,
915 size_t * len, int *wrote_all)
917 quic_stream_data_t *stream_data;
918 session_t *stream_session;
922 stream_data = (quic_stream_data_t *) stream->data;
923 stream_session = get_stream_session_from_stream (stream);
924 f = stream_session->tx_fifo;
926 QUIC_DBG (3, "Emitting %u, offset %u", *len, off);
928 deq_max = svm_fifo_max_dequeue_cons (f);
929 QUIC_ASSERT (off <= deq_max);
930 if (off + *len < deq_max)
937 *len = deq_max - off;
939 QUIC_ASSERT (*len > 0);
941 if (off + *len > stream_data->app_tx_data_len)
942 stream_data->app_tx_data_len = off + *len;
944 svm_fifo_peek (f, off, *len, dst);
947 static const quicly_stream_callbacks_t quic_stream_callbacks = {
948 .on_destroy = quic_on_stream_destroy,
949 .on_send_shift = quic_fifo_egress_shift,
950 .on_send_emit = quic_fifo_egress_emit,
951 .on_send_stop = quic_on_stop_sending,
952 .on_receive = quic_on_receive,
953 .on_receive_reset = quic_on_receive_reset
957 quic_on_stream_open (quicly_stream_open_t * self, quicly_stream_t * stream)
959 /* Return code for this function ends either
960 * - in quicly_receive : if not QUICLY_ERROR_PACKET_IGNORED, will close connection
961 * - in quicly_open_stream, returned directly
964 session_t *stream_session, *quic_session;
965 quic_stream_data_t *stream_data;
966 app_worker_t *app_wrk;
967 quic_ctx_t *qctx, *sctx;
971 QUIC_DBG (2, "on_stream_open called");
972 stream->data = clib_mem_alloc (sizeof (quic_stream_data_t));
973 stream->callbacks = &quic_stream_callbacks;
974 /* Notify accept on parent qsession, but only if this is not a locally
975 * initiated stream */
976 if (quicly_stream_is_self_initiated (stream))
979 sctx_id = quic_ctx_alloc (vlib_get_thread_index ());
980 qctx = quic_get_conn_ctx (stream->conn);
982 /* Might need to signal that the connection is ready if the first thing the
983 * server does is open a stream */
984 quic_check_quic_session_connected (qctx);
985 /* ctx might be invalidated */
986 qctx = quic_get_conn_ctx (stream->conn);
988 stream_session = session_alloc (qctx->c_thread_index);
989 QUIC_DBG (2, "ACCEPTED stream_session 0x%lx ctx %u",
990 session_handle (stream_session), sctx_id);
991 sctx = quic_ctx_get (sctx_id, qctx->c_thread_index);
992 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
993 sctx->parent_app_id = qctx->parent_app_id;
994 sctx->quic_connection_ctx_id = qctx->c_c_index;
995 sctx->c_c_index = sctx_id;
996 sctx->c_s_index = stream_session->session_index;
997 sctx->stream = stream;
998 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
999 sctx->flags |= QUIC_F_IS_STREAM;
1000 if (quicly_stream_is_unidirectional (stream->stream_id))
1001 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1003 stream_data = (quic_stream_data_t *) stream->data;
1004 stream_data->ctx_id = sctx_id;
1005 stream_data->thread_index = sctx->c_thread_index;
1006 stream_data->app_rx_data_len = 0;
1007 stream_data->app_tx_data_len = 0;
1009 sctx->c_s_index = stream_session->session_index;
1010 stream_session->session_state = SESSION_STATE_CREATED;
1011 stream_session->app_wrk_index = sctx->parent_app_wrk_id;
1012 stream_session->connection_index = sctx->c_c_index;
1013 stream_session->session_type =
1014 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1015 quic_session = session_get (qctx->c_s_index, qctx->c_thread_index);
1016 stream_session->listener_handle = listen_session_get_handle (quic_session);
1018 app_wrk = app_worker_get (stream_session->app_wrk_index);
1019 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1021 QUIC_ERR ("failed to allocate fifos");
1022 quicly_reset_stream (stream, QUIC_APP_ALLOCATION_ERROR);
1023 return 0; /* Frame is still valid */
1025 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1026 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1027 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1029 if ((rv = app_worker_accept_notify (app_wrk, stream_session)))
1031 QUIC_ERR ("failed to notify accept worker app");
1032 quicly_reset_stream (stream, QUIC_APP_ACCEPT_NOTIFY_ERROR);
1033 return 0; /* Frame is still valid */
1040 quic_on_closed_by_peer (quicly_closed_by_peer_t * self, quicly_conn_t * conn,
1041 int code, uint64_t frame_type,
1042 const char *reason, size_t reason_len)
1044 quic_ctx_t *ctx = quic_get_conn_ctx (conn);
1046 session_t *quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1047 clib_warning ("Session 0x%lx closed by peer (%U) %.*s ",
1048 session_handle (quic_session), quic_format_err, code,
1049 reason_len, reason);
1051 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING;
1052 session_transport_closing_notify (&ctx->connection);
1055 /* Timer handling */
1058 quic_get_thread_time (u8 thread_index)
1060 return quic_main.wrk_ctx[thread_index].time_now;
1064 quic_get_time (quicly_now_t * self)
1066 u8 thread_index = vlib_get_thread_index ();
1067 return quic_get_thread_time (thread_index);
1071 quic_set_time_now (u32 thread_index)
1073 vlib_main_t *vlib_main = vlib_get_main ();
1074 f64 time = vlib_time_now (vlib_main);
1075 quic_main.wrk_ctx[thread_index].time_now = (int64_t) (time * 1000.f);
1076 return quic_main.wrk_ctx[thread_index].time_now;
1079 /* Transport proto callback */
1081 quic_update_time (f64 now, u8 thread_index)
1083 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1085 tw = &quic_main.wrk_ctx[thread_index].timer_wheel;
1086 quic_set_time_now (thread_index);
1087 tw_timer_expire_timers_1t_3w_1024sl_ov (tw, now);
1091 quic_timer_expired (u32 conn_index)
1094 QUIC_DBG (4, "Timer expired for conn %u at %ld", conn_index,
1095 quic_get_time (NULL));
1096 ctx = quic_ctx_get (conn_index, vlib_get_thread_index ());
1097 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1098 quic_send_packets (ctx);
1102 quic_update_timer (quic_ctx_t * ctx)
1104 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
1105 int64_t next_timeout, next_interval;
1106 session_t *quic_session;
1109 /* This timeout is in ms which is the unit of our timer */
1110 next_timeout = quicly_get_first_timeout (ctx->conn);
1111 next_interval = next_timeout - quic_get_time (NULL);
1113 if (next_timeout == 0 || next_interval <= 0)
1115 if (ctx->c_s_index == QUIC_SESSION_INVALID)
1121 quic_session = session_get (ctx->c_s_index, ctx->c_thread_index);
1122 if (svm_fifo_set_event (quic_session->tx_fifo))
1124 rv = session_send_io_evt_to_thread_custom (quic_session,
1125 quic_session->thread_index,
1126 SESSION_IO_EVT_BUILTIN_TX);
1127 if (PREDICT_FALSE (rv))
1128 QUIC_ERR ("Failed to enqueue builtin_tx %d", rv);
1134 tw = &quic_main.wrk_ctx[vlib_get_thread_index ()].timer_wheel;
1136 QUIC_DBG (4, "Timer set to %ld (int %ld) for ctx %u", next_timeout,
1137 next_interval, ctx->c_c_index);
1139 if (ctx->timer_handle == QUIC_TIMER_HANDLE_INVALID)
1141 if (next_timeout == INT64_MAX)
1143 QUIC_DBG (4, "timer for ctx %u already stopped", ctx->c_c_index);
1146 ctx->timer_handle = tw_timer_start_1t_3w_1024sl_ov (tw, ctx->c_c_index,
1151 if (next_timeout == INT64_MAX)
1153 quic_stop_ctx_timer (ctx);
1156 tw_timer_update_1t_3w_1024sl_ov (tw, ctx->timer_handle,
1163 quic_expired_timers_dispatch (u32 * expired_timers)
1167 for (i = 0; i < vec_len (expired_timers); i++)
1169 quic_timer_expired (expired_timers[i]);
1173 /* Transport proto functions */
1175 quic_connect_stream (session_t * quic_session, session_endpoint_cfg_t * sep)
1177 uint64_t quic_session_handle;
1178 session_t *stream_session;
1179 quic_stream_data_t *stream_data;
1180 quicly_stream_t *stream;
1181 quicly_conn_t *conn;
1182 app_worker_t *app_wrk;
1183 quic_ctx_t *qctx, *sctx;
1188 /* Find base session to which the user want to attach a stream */
1189 quic_session_handle = session_handle (quic_session);
1190 QUIC_DBG (2, "Opening new stream (qsession %u)", quic_session_handle);
1192 if (session_type_transport_proto (quic_session->session_type) !=
1193 TRANSPORT_PROTO_QUIC)
1195 QUIC_ERR ("received incompatible session");
1199 app_wrk = app_worker_get_if_valid (quic_session->app_wrk_index);
1202 QUIC_ERR ("Invalid app worker :(");
1206 sctx_index = quic_ctx_alloc (quic_session->thread_index); /* Allocate before we get pointers */
1207 sctx = quic_ctx_get (sctx_index, quic_session->thread_index);
1208 qctx = quic_ctx_get (quic_session->connection_index,
1209 quic_session->thread_index);
1210 if (quic_ctx_is_stream (qctx))
1212 QUIC_ERR ("session is a stream");
1213 quic_ctx_free (sctx);
1217 sctx->parent_app_wrk_id = qctx->parent_app_wrk_id;
1218 sctx->parent_app_id = qctx->parent_app_id;
1219 sctx->quic_connection_ctx_id = qctx->c_c_index;
1220 sctx->c_c_index = sctx_index;
1221 sctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1222 sctx->flags |= QUIC_F_IS_STREAM;
1226 if (!conn || !quicly_connection_is_ready (conn))
1229 is_unidir = sep->transport_flags & TRANSPORT_CFG_F_UNIDIRECTIONAL;
1230 if ((rv = quicly_open_stream (conn, &stream, is_unidir)))
1232 QUIC_DBG (2, "Stream open failed with %d", rv);
1235 quic_increment_counter (QUIC_ERROR_OPENED_STREAM, 1);
1237 sctx->stream = stream;
1239 QUIC_DBG (2, "Opened stream %d, creating session", stream->stream_id);
1241 stream_session = session_alloc (qctx->c_thread_index);
1242 QUIC_DBG (2, "Allocated stream_session 0x%lx ctx %u",
1243 session_handle (stream_session), sctx_index);
1244 stream_session->app_wrk_index = app_wrk->wrk_index;
1245 stream_session->connection_index = sctx_index;
1246 stream_session->listener_handle = quic_session_handle;
1247 stream_session->session_type =
1248 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, qctx->udp_is_ip4);
1250 stream_session->flags |= SESSION_F_UNIDIRECTIONAL;
1252 sctx->c_s_index = stream_session->session_index;
1253 stream_data = (quic_stream_data_t *) stream->data;
1254 stream_data->ctx_id = sctx->c_c_index;
1255 stream_data->thread_index = sctx->c_thread_index;
1256 stream_data->app_rx_data_len = 0;
1257 stream_data->app_tx_data_len = 0;
1258 stream_session->session_state = SESSION_STATE_READY;
1260 /* For now we only reset streams. Cleanup will be triggered by timers */
1261 if ((rv = app_worker_init_connected (app_wrk, stream_session)))
1263 QUIC_ERR ("failed to app_worker_init_connected");
1264 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1265 return app_worker_connect_notify (app_wrk, NULL, rv, sep->opaque);
1268 svm_fifo_add_want_deq_ntf (stream_session->rx_fifo,
1269 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL |
1270 SVM_FIFO_WANT_DEQ_NOTIF_IF_EMPTY);
1272 if (app_worker_connect_notify (app_wrk, stream_session, SESSION_E_NONE,
1275 QUIC_ERR ("failed to notify app");
1276 quic_increment_counter (QUIC_ERROR_CLOSED_STREAM, 1);
1277 quicly_reset_stream (stream, QUIC_APP_CONNECT_NOTIFY_ERROR);
1285 quic_connect_connection (session_endpoint_cfg_t * sep)
1287 vnet_connect_args_t _cargs, *cargs = &_cargs;
1288 quic_main_t *qm = &quic_main;
1290 app_worker_t *app_wrk;
1293 u32 thread_index = vlib_get_thread_index ();
1296 clib_memset (cargs, 0, sizeof (*cargs));
1297 ctx_index = quic_ctx_alloc (thread_index);
1298 ctx = quic_ctx_get (ctx_index, thread_index);
1299 ctx->parent_app_wrk_id = sep->app_wrk_index;
1300 ctx->c_s_index = QUIC_SESSION_INVALID;
1301 ctx->c_c_index = ctx_index;
1302 ctx->udp_is_ip4 = sep->is_ip4;
1303 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1304 ctx->conn_state = QUIC_CONN_STATE_HANDSHAKE;
1305 ctx->client_opaque = sep->opaque;
1306 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1308 ctx->srv_hostname = format (0, "%v", sep->hostname);
1310 /* needed by quic for crypto + determining client / server */
1311 ctx->srv_hostname = format (0, "%U", format_ip46_address,
1312 &sep->ip, sep->is_ip4);
1313 vec_terminate_c_string (ctx->srv_hostname);
1315 clib_memcpy (&cargs->sep, sep, sizeof (session_endpoint_cfg_t));
1316 cargs->sep.transport_proto = TRANSPORT_PROTO_UDP;
1317 cargs->app_index = qm->app_index;
1318 cargs->api_context = ctx_index;
1320 app_wrk = app_worker_get (sep->app_wrk_index);
1321 app = application_get (app_wrk->app_index);
1322 ctx->parent_app_id = app_wrk->app_index;
1323 cargs->sep_ext.ns_index = app->ns_index;
1324 cargs->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1326 ctx->crypto_engine = sep->crypto_engine;
1327 ctx->ckpair_index = sep->ckpair_index;
1328 if ((error = quic_acquire_crypto_context (ctx)))
1331 if ((error = vnet_connect (cargs)))
1338 quic_connect (transport_endpoint_cfg_t * tep)
1340 QUIC_DBG (2, "Called quic_connect");
1341 session_endpoint_cfg_t *sep = (session_endpoint_cfg_t *) tep;
1342 session_t *quic_session;
1343 sep = (session_endpoint_cfg_t *) tep;
1345 quic_session = session_get_from_handle_if_valid (sep->parent_handle);
1347 return quic_connect_stream (quic_session, sep);
1349 return quic_connect_connection (sep);
1353 quic_proto_on_close (u32 ctx_index, u32 thread_index)
1355 quic_ctx_t *ctx = quic_ctx_get_if_valid (ctx_index, thread_index);
1359 session_t *stream_session = session_get (ctx->c_s_index,
1360 ctx->c_thread_index);
1361 clib_warning ("Closing session 0x%lx", session_handle (stream_session));
1363 if (quic_ctx_is_stream (ctx))
1365 quicly_stream_t *stream = ctx->stream;
1366 if (!quicly_stream_has_send_side (quicly_is_client (stream->conn),
1369 quicly_reset_stream (stream, QUIC_APP_ERROR_CLOSE_NOTIFY);
1370 quic_send_packets (ctx);
1374 switch (ctx->conn_state)
1376 case QUIC_CONN_STATE_OPENED:
1377 case QUIC_CONN_STATE_HANDSHAKE:
1378 case QUIC_CONN_STATE_READY:
1379 ctx->conn_state = QUIC_CONN_STATE_ACTIVE_CLOSING;
1380 quicly_conn_t *conn = ctx->conn;
1381 /* Start connection closing. Keep sending packets until quicly_send
1382 returns QUICLY_ERROR_FREE_CONNECTION */
1384 quic_increment_counter (QUIC_ERROR_CLOSED_CONNECTION, 1);
1385 quicly_close (conn, QUIC_APP_ERROR_CLOSE_NOTIFY, "Closed by peer");
1386 /* This also causes all streams to be closed (and the cb called) */
1387 quic_send_packets (ctx);
1389 case QUIC_CONN_STATE_PASSIVE_CLOSING:
1390 ctx->conn_state = QUIC_CONN_STATE_PASSIVE_CLOSING_APP_CLOSED;
1391 /* send_packets will eventually return an error, we delete the conn at
1394 case QUIC_CONN_STATE_PASSIVE_CLOSING_QUIC_CLOSED:
1395 quic_connection_delete (ctx);
1397 case QUIC_CONN_STATE_ACTIVE_CLOSING:
1400 QUIC_ERR ("Trying to close conn in state %d", ctx->conn_state);
1406 quic_start_listen (u32 quic_listen_session_index, transport_endpoint_t * tep)
1408 vnet_listen_args_t _bargs, *args = &_bargs;
1409 quic_main_t *qm = &quic_main;
1410 session_handle_t udp_handle;
1411 session_endpoint_cfg_t *sep;
1412 session_t *udp_listen_session;
1413 app_worker_t *app_wrk;
1417 app_listener_t *app_listener;
1420 sep = (session_endpoint_cfg_t *) tep;
1421 app_wrk = app_worker_get (sep->app_wrk_index);
1422 /* We need to call this because we call app_worker_init_connected in
1423 * quic_accept_stream, which assumes the connect segment manager exists */
1424 app_worker_alloc_connects_segment_manager (app_wrk);
1425 app = application_get (app_wrk->app_index);
1426 QUIC_DBG (2, "Called quic_start_listen for app %d", app_wrk->app_index);
1428 clib_memset (args, 0, sizeof (*args));
1429 args->app_index = qm->app_index;
1430 args->sep_ext = *sep;
1431 args->sep_ext.ns_index = app->ns_index;
1432 args->sep_ext.transport_proto = TRANSPORT_PROTO_UDP;
1433 args->sep_ext.transport_flags = TRANSPORT_CFG_F_CONNECTED;
1434 if ((rv = vnet_listen (args)))
1437 lctx_index = quic_ctx_alloc (0);
1438 udp_handle = args->handle;
1439 app_listener = app_listener_get_w_handle (udp_handle);
1440 udp_listen_session = app_listener_get_session (app_listener);
1441 udp_listen_session->opaque = lctx_index;
1443 lctx = quic_ctx_get (lctx_index, 0);
1444 lctx->flags |= QUIC_F_IS_LISTENER;
1446 clib_memcpy (&lctx->c_rmt_ip, &args->sep.peer.ip, sizeof (ip46_address_t));
1447 clib_memcpy (&lctx->c_lcl_ip, &args->sep.ip, sizeof (ip46_address_t));
1448 lctx->c_rmt_port = args->sep.peer.port;
1449 lctx->c_lcl_port = args->sep.port;
1450 lctx->c_is_ip4 = args->sep.is_ip4;
1451 lctx->c_fib_index = args->sep.fib_index;
1452 lctx->c_proto = TRANSPORT_PROTO_QUIC;
1453 lctx->parent_app_wrk_id = sep->app_wrk_index;
1454 lctx->parent_app_id = app_wrk->app_index;
1455 lctx->udp_session_handle = udp_handle;
1456 lctx->c_s_index = quic_listen_session_index;
1457 lctx->crypto_engine = sep->crypto_engine;
1458 lctx->ckpair_index = sep->ckpair_index;
1459 if (quic_acquire_crypto_context (lctx))
1462 QUIC_DBG (2, "Listening UDP session 0x%lx",
1463 session_handle (udp_listen_session));
1464 QUIC_DBG (2, "Listening QUIC session 0x%lx", quic_listen_session_index);
1469 quic_stop_listen (u32 lctx_index)
1471 QUIC_DBG (2, "Called quic_stop_listen");
1473 lctx = quic_ctx_get (lctx_index, 0);
1474 QUIC_ASSERT (quic_ctx_is_listener (lctx));
1475 vnet_unlisten_args_t a = {
1476 .handle = lctx->udp_session_handle,
1477 .app_index = quic_main.app_index,
1478 .wrk_map_index = 0 /* default wrk */
1480 if (vnet_unlisten (&a))
1481 clib_warning ("unlisten errored");
1483 quic_release_crypto_context (lctx->crypto_context_index,
1484 0 /* thread_index */ );
1485 quic_ctx_free (lctx);
1489 static transport_connection_t *
1490 quic_connection_get (u32 ctx_index, u32 thread_index)
1493 ctx = quic_ctx_get (ctx_index, thread_index);
1494 return &ctx->connection;
1497 static transport_connection_t *
1498 quic_listener_get (u32 listener_index)
1500 QUIC_DBG (2, "Called quic_listener_get");
1502 ctx = quic_ctx_get (listener_index, 0);
1503 return &ctx->connection;
1507 format_quic_ctx (u8 * s, va_list * args)
1509 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
1510 u32 verbose = va_arg (*args, u32);
1515 str = format (str, "[#%d][Q] ", ctx->c_thread_index);
1517 if (quic_ctx_is_listener (ctx))
1518 str = format (str, "Listener, UDP %ld", ctx->udp_session_handle);
1519 else if (quic_ctx_is_stream (ctx))
1520 str = format (str, "Stream %ld conn %d",
1521 ctx->stream->stream_id, ctx->quic_connection_ctx_id);
1522 else /* connection */
1523 str = format (str, "Conn %d UDP %d", ctx->c_c_index,
1524 ctx->udp_session_handle);
1526 str = format (str, " app %d wrk %d", ctx->parent_app_id,
1527 ctx->parent_app_wrk_id);
1530 s = format (s, "%-50s%-15d", str, ctx->conn_state);
1532 s = format (s, "%s\n", str);
1538 format_quic_connection (u8 * s, va_list * args)
1540 u32 qc_index = va_arg (*args, u32);
1541 u32 thread_index = va_arg (*args, u32);
1542 u32 verbose = va_arg (*args, u32);
1543 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1544 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1549 format_quic_half_open (u8 * s, va_list * args)
1551 u32 qc_index = va_arg (*args, u32);
1552 u32 thread_index = va_arg (*args, u32);
1553 quic_ctx_t *ctx = quic_ctx_get (qc_index, thread_index);
1554 s = format (s, "[#%d][Q] half-open app %u", thread_index,
1555 ctx->parent_app_id);
1561 format_quic_listener (u8 * s, va_list * args)
1563 u32 tci = va_arg (*args, u32);
1564 u32 thread_index = va_arg (*args, u32);
1565 u32 verbose = va_arg (*args, u32);
1566 quic_ctx_t *ctx = quic_ctx_get (tci, thread_index);
1567 s = format (s, "%U", format_quic_ctx, ctx, verbose);
1571 /* Session layer callbacks */
1574 quic_build_sockaddr (struct sockaddr *sa, socklen_t * salen,
1575 ip46_address_t * addr, u16 port, u8 is_ip4)
1579 struct sockaddr_in *sa4 = (struct sockaddr_in *) sa;
1580 sa4->sin_family = AF_INET;
1581 sa4->sin_port = port;
1582 sa4->sin_addr.s_addr = addr->ip4.as_u32;
1583 *salen = sizeof (struct sockaddr_in);
1587 struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *) sa;
1588 sa6->sin6_family = AF_INET6;
1589 sa6->sin6_port = port;
1590 clib_memcpy (&sa6->sin6_addr, &addr->ip6, 16);
1591 *salen = sizeof (struct sockaddr_in6);
1596 quic_on_quic_session_connected (quic_ctx_t * ctx)
1598 session_t *quic_session;
1599 app_worker_t *app_wrk;
1600 u32 ctx_id = ctx->c_c_index;
1601 u32 thread_index = ctx->c_thread_index;
1604 quic_session = session_alloc (thread_index);
1606 QUIC_DBG (2, "Allocated quic session 0x%lx", session_handle (quic_session));
1607 ctx->c_s_index = quic_session->session_index;
1608 quic_session->app_wrk_index = ctx->parent_app_wrk_id;
1609 quic_session->connection_index = ctx->c_c_index;
1610 quic_session->listener_handle = SESSION_INVALID_HANDLE;
1611 quic_session->session_type =
1612 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
1614 /* If quic session connected fails, immediatly close connection */
1615 app_wrk = app_worker_get (ctx->parent_app_wrk_id);
1616 if ((rv = app_worker_init_connected (app_wrk, quic_session)))
1618 QUIC_ERR ("failed to app_worker_init_connected");
1619 quic_proto_on_close (ctx_id, thread_index);
1620 app_worker_connect_notify (app_wrk, NULL, rv, ctx->client_opaque);
1624 quic_session->session_state = SESSION_STATE_CONNECTING;
1625 if ((rv = app_worker_connect_notify (app_wrk, quic_session,
1626 SESSION_E_NONE, ctx->client_opaque)))
1628 QUIC_ERR ("failed to notify app %d", rv);
1629 quic_proto_on_close (ctx_id, thread_index);
1633 /* If the app opens a stream in its callback it may invalidate ctx */
1634 ctx = quic_ctx_get (ctx_id, thread_index);
1636 * app_worker_connect_notify() might have reallocated pool, reload
1637 * quic_session pointer
1639 quic_session = session_get (ctx->c_s_index, thread_index);
1640 quic_session->session_state = SESSION_STATE_LISTENING;
1644 quic_check_quic_session_connected (quic_ctx_t * ctx)
1646 /* Called when we need to trigger quic session connected
1647 * we may call this function on the server side / at
1650 /* Conn may be set to null if the connection is terminated */
1651 if (!ctx->conn || ctx->conn_state != QUIC_CONN_STATE_HANDSHAKE)
1653 if (!quicly_connection_is_ready (ctx->conn))
1655 ctx->conn_state = QUIC_CONN_STATE_READY;
1656 if (!quicly_is_client (ctx->conn))
1658 quic_on_quic_session_connected (ctx);
1662 quic_update_conn_ctx (quicly_conn_t * conn, quicly_context_t * quicly_context)
1664 /* we need to update the quicly_conn on migrate
1665 * as it contains a pointer to the crypto context */
1666 ptls_context_t **tls;
1667 quicly_context_t **_quicly_context;
1668 _quicly_context = (quicly_context_t **) conn;
1669 *_quicly_context = quicly_context;
1670 tls = (ptls_context_t **) quicly_get_tls (conn);
1671 *tls = quicly_context->tls;
1675 quic_receive_connection (void *arg)
1677 u32 new_ctx_id, thread_index = vlib_get_thread_index ();
1678 quic_ctx_t *temp_ctx, *new_ctx;
1679 clib_bihash_kv_16_8_t kv;
1680 quicly_conn_t *conn;
1681 quicly_context_t *quicly_context;
1682 session_t *udp_session;
1685 new_ctx_id = quic_ctx_alloc (thread_index);
1686 new_ctx = quic_ctx_get (new_ctx_id, thread_index);
1688 QUIC_DBG (2, "Received conn %u (now %u)", temp_ctx->c_thread_index,
1691 clib_memcpy (new_ctx, temp_ctx, sizeof (quic_ctx_t));
1692 clib_mem_free (temp_ctx);
1694 new_ctx->c_thread_index = thread_index;
1695 new_ctx->c_c_index = new_ctx_id;
1696 quic_acquire_crypto_context (new_ctx);
1698 conn = new_ctx->conn;
1699 quicly_context = quic_get_quicly_ctx_from_ctx (new_ctx);
1700 quic_update_conn_ctx (conn, quicly_context);
1702 quic_store_conn_ctx (conn, new_ctx);
1703 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1704 kv.value = ((u64) thread_index) << 32 | (u64) new_ctx_id;
1705 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1706 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1707 new_ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1708 quic_update_timer (new_ctx);
1710 /* Trigger write on this connection if necessary */
1711 udp_session = session_get_from_handle (new_ctx->udp_session_handle);
1712 udp_session->opaque = new_ctx_id;
1713 udp_session->flags &= ~SESSION_F_IS_MIGRATING;
1714 if (svm_fifo_max_dequeue (udp_session->tx_fifo))
1715 quic_set_udp_tx_evt (udp_session);
1719 quic_transfer_connection (u32 ctx_index, u32 dest_thread)
1721 quic_ctx_t *ctx, *temp_ctx;
1722 u32 thread_index = vlib_get_thread_index ();
1724 QUIC_DBG (2, "Transferring conn %u to thread %u", ctx_index, dest_thread);
1726 temp_ctx = clib_mem_alloc (sizeof (quic_ctx_t));
1727 QUIC_ASSERT (temp_ctx != NULL);
1728 ctx = quic_ctx_get (ctx_index, thread_index);
1730 clib_memcpy (temp_ctx, ctx, sizeof (quic_ctx_t));
1732 quic_stop_ctx_timer (ctx);
1733 quic_release_crypto_context (ctx->crypto_context_index, thread_index);
1734 quic_ctx_free (ctx);
1736 /* Send connection to destination thread */
1737 session_send_rpc_evt_to_thread (dest_thread, quic_receive_connection,
1742 quic_udp_session_connected_callback (u32 quic_app_index, u32 ctx_index,
1743 session_t * udp_session,
1744 session_error_t err)
1746 QUIC_DBG (2, "QSession is now connected (id %u)",
1747 udp_session->session_index);
1748 /* This should always be called before quic_connect returns since UDP always
1749 * connects instantly. */
1750 clib_bihash_kv_16_8_t kv;
1751 struct sockaddr_in6 sa6;
1752 struct sockaddr *sa = (struct sockaddr *) &sa6;
1754 transport_connection_t *tc;
1755 app_worker_t *app_wrk;
1756 quicly_conn_t *conn;
1758 u32 thread_index = vlib_get_thread_index ();
1760 quicly_context_t *quicly_ctx;
1763 ctx = quic_ctx_get (ctx_index, thread_index);
1767 app_wrk = app_worker_get_if_valid (ctx->parent_app_wrk_id);
1770 api_context = ctx->c_s_index;
1771 app_worker_connect_notify (app_wrk, 0, SESSION_E_NONE, api_context);
1776 ctx->c_thread_index = thread_index;
1777 ctx->c_c_index = ctx_index;
1779 QUIC_DBG (2, "Quic connect returned %u. New ctx [%u]%x",
1780 is_fail, thread_index, (ctx) ? ctx_index : ~0);
1782 ctx->udp_session_handle = session_handle (udp_session);
1783 udp_session->opaque = ctx_index;
1785 /* Init QUIC lib connection
1786 * Generate required sockaddr & salen */
1787 tc = session_get_transport (udp_session);
1788 quic_build_sockaddr (sa, &salen, &tc->rmt_ip, tc->rmt_port, tc->is_ip4);
1790 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
1791 ret = quicly_connect (&ctx->conn, quicly_ctx, (char *) ctx->srv_hostname,
1792 sa, NULL, &quic_main.wrk_ctx[thread_index].next_cid,
1793 ptls_iovec_init (NULL, 0), &quic_main.hs_properties,
1795 ++quic_main.wrk_ctx[thread_index].next_cid.master_id;
1796 /* Save context handle in quicly connection */
1797 quic_store_conn_ctx (ctx->conn, ctx);
1800 /* Register connection in connections map */
1802 quic_make_connection_key (&kv, quicly_get_master_id (conn));
1803 kv.value = ((u64) thread_index) << 32 | (u64) ctx_index;
1804 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
1805 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
1807 /* UDP stack quirk? preemptively transfer connection if that happens */
1808 if (udp_session->thread_index != thread_index)
1809 quic_transfer_connection (ctx_index, udp_session->thread_index);
1811 quic_send_packets (ctx);
1817 quic_udp_session_disconnect_callback (session_t * s)
1819 clib_warning ("UDP session disconnected???");
1823 quic_udp_session_cleanup_callback (session_t * udp_session,
1824 session_cleanup_ntf_t ntf)
1828 if (ntf != SESSION_CLEANUP_SESSION)
1831 ctx = quic_ctx_get (udp_session->opaque, udp_session->thread_index);
1832 quic_stop_ctx_timer (ctx);
1833 quic_release_crypto_context (ctx->crypto_context_index,
1834 ctx->c_thread_index);
1835 quic_ctx_free (ctx);
1839 quic_udp_session_reset_callback (session_t * s)
1841 clib_warning ("UDP session reset???");
1845 quic_udp_session_migrate_callback (session_t * s, session_handle_t new_sh)
1847 u32 new_thread = session_thread_from_handle (new_sh);
1850 QUIC_DBG (2, "Session %x migrated to %lx", s->session_index, new_sh);
1851 QUIC_ASSERT (vlib_get_thread_index () == s->thread_index);
1852 ctx = quic_ctx_get (s->opaque, s->thread_index);
1853 QUIC_ASSERT (ctx->udp_session_handle == session_handle (s));
1855 ctx->udp_session_handle = new_sh;
1857 s->opaque = 0xfeedface;
1859 quic_transfer_connection (ctx->c_c_index, new_thread);
1863 quic_udp_session_accepted_callback (session_t * udp_session)
1865 /* New UDP connection, try to accept it */
1867 quic_ctx_t *ctx, *lctx;
1868 session_t *udp_listen_session;
1869 u32 thread_index = vlib_get_thread_index ();
1871 udp_listen_session =
1872 listen_session_get_from_handle (udp_session->listener_handle);
1874 ctx_index = quic_ctx_alloc (thread_index);
1875 ctx = quic_ctx_get (ctx_index, thread_index);
1876 ctx->c_thread_index = udp_session->thread_index;
1877 ctx->c_c_index = ctx_index;
1878 ctx->c_s_index = QUIC_SESSION_INVALID;
1879 ctx->udp_session_handle = session_handle (udp_session);
1880 QUIC_DBG (2, "ACCEPTED UDP 0x%lx", ctx->udp_session_handle);
1881 ctx->listener_ctx_id = udp_listen_session->opaque;
1882 lctx = quic_ctx_get (udp_listen_session->opaque,
1883 udp_listen_session->thread_index);
1884 ctx->udp_is_ip4 = lctx->c_is_ip4;
1885 ctx->parent_app_id = lctx->parent_app_id;
1886 ctx->parent_app_wrk_id = lctx->parent_app_wrk_id;
1887 ctx->timer_handle = QUIC_TIMER_HANDLE_INVALID;
1888 ctx->conn_state = QUIC_CONN_STATE_OPENED;
1889 ctx->c_flags |= TRANSPORT_CONNECTION_F_NO_LOOKUP;
1891 ctx->crypto_engine = lctx->crypto_engine;
1892 ctx->ckpair_index = lctx->ckpair_index;
1893 quic_acquire_crypto_context (ctx);
1894 udp_session->opaque = ctx_index;
1896 /* TODO timeout to delete these if they never connect */
1901 quic_add_segment_callback (u32 client_index, u64 seg_handle)
1903 /* No-op for builtin */
1908 quic_del_segment_callback (u32 client_index, u64 seg_handle)
1910 /* No-op for builtin */
1915 quic_custom_app_rx_callback (transport_connection_t * tc)
1918 session_t *stream_session = session_get (tc->s_index, tc->thread_index);
1919 QUIC_DBG (3, "Received app READ notification");
1920 quic_ack_rx_data (stream_session);
1921 svm_fifo_reset_has_deq_ntf (stream_session->rx_fifo);
1923 /* Need to send packets (acks may never be sent otherwise) */
1924 ctx = quic_ctx_get (stream_session->connection_index,
1925 stream_session->thread_index);
1926 quic_send_packets (ctx);
1931 quic_custom_tx_callback (void *s, transport_send_params_t * sp)
1933 session_t *stream_session = (session_t *) s;
1934 quic_stream_data_t *stream_data;
1935 quicly_stream_t *stream;
1941 (stream_session->session_state >= SESSION_STATE_TRANSPORT_CLOSING))
1943 ctx = quic_ctx_get (stream_session->connection_index,
1944 stream_session->thread_index);
1945 if (PREDICT_FALSE (!quic_ctx_is_stream (ctx)))
1947 goto tx_end; /* Most probably a reschedule */
1950 QUIC_DBG (3, "Stream TX event");
1951 quic_ack_rx_data (stream_session);
1952 stream = ctx->stream;
1953 if (!quicly_sendstate_is_open (&stream->sendstate))
1955 QUIC_ERR ("Warning: tried to send on closed stream");
1959 stream_data = (quic_stream_data_t *) stream->data;
1960 max_deq = svm_fifo_max_dequeue (stream_session->tx_fifo);
1961 QUIC_ASSERT (max_deq >= stream_data->app_tx_data_len);
1962 if (max_deq == stream_data->app_tx_data_len)
1964 QUIC_DBG (3, "TX but no data %d / %d", max_deq,
1965 stream_data->app_tx_data_len);
1968 stream_data->app_tx_data_len = max_deq;
1969 rv = quicly_stream_sync_sendbuf (stream, 1);
1973 quic_send_packets (ctx);
1978 * Returns 0 if a matching connection is found and is on the right thread.
1979 * Otherwise returns -1.
1980 * If a connection is found, even on the wrong thread, ctx_thread and ctx_index
1984 quic_find_packet_ctx (quic_rx_packet_ctx_t * pctx, u32 caller_thread_index)
1986 clib_bihash_kv_16_8_t kv;
1987 clib_bihash_16_8_t *h;
1989 u32 index, thread_id;
1991 h = &quic_main.connection_hash;
1992 quic_make_connection_key (&kv, &pctx->packet.cid.dest.plaintext);
1993 QUIC_DBG (3, "Searching conn with id %lu %lu", kv.key[0], kv.key[1]);
1995 if (clib_bihash_search_16_8 (h, &kv, &kv))
1997 QUIC_DBG (3, "connection not found");
1998 return QUIC_PACKET_TYPE_NONE;
2001 index = kv.value & UINT32_MAX;
2002 thread_id = kv.value >> 32;
2003 /* Check if this connection belongs to this thread, otherwise
2004 * ask for it to be moved */
2005 if (thread_id != caller_thread_index)
2007 QUIC_DBG (2, "Connection is on wrong thread");
2008 /* Cannot make full check with quicly_is_destination... */
2009 pctx->ctx_index = index;
2010 pctx->thread_index = thread_id;
2011 return QUIC_PACKET_TYPE_MIGRATE;
2013 ctx = quic_ctx_get (index, vlib_get_thread_index ());
2016 QUIC_ERR ("ctx has no conn");
2017 return QUIC_PACKET_TYPE_NONE;
2019 if (!quicly_is_destination (ctx->conn, NULL, &pctx->sa, &pctx->packet))
2020 return QUIC_PACKET_TYPE_NONE;
2022 QUIC_DBG (3, "Connection found");
2023 pctx->ctx_index = index;
2024 pctx->thread_index = thread_id;
2025 return QUIC_PACKET_TYPE_RECEIVE;
2029 quic_accept_connection (quic_rx_packet_ctx_t * pctx)
2031 quicly_context_t *quicly_ctx;
2032 session_t *quic_session;
2033 clib_bihash_kv_16_8_t kv;
2034 app_worker_t *app_wrk;
2035 quicly_conn_t *conn;
2040 /* new connection, accept and create context if packet is valid
2041 * TODO: check if socket is actually listening? */
2042 ctx = quic_ctx_get (pctx->ctx_index, pctx->thread_index);
2043 if (ctx->c_s_index != QUIC_SESSION_INVALID)
2045 QUIC_DBG (2, "already accepted ctx 0x%x", ctx->c_s_index);
2049 quicly_ctx = quic_get_quicly_ctx_from_ctx (ctx);
2050 if ((rv = quicly_accept (&conn, quicly_ctx, NULL, &pctx->sa,
2051 &pctx->packet, NULL,
2052 &quic_main.wrk_ctx[pctx->thread_index].next_cid,
2055 /* Invalid packet, pass */
2056 assert (conn == NULL);
2057 QUIC_ERR ("Accept failed with %U", quic_format_err, rv);
2058 /* TODO: cleanup created quic ctx and UDP session */
2061 assert (conn != NULL);
2063 ++quic_main.wrk_ctx[pctx->thread_index].next_cid.master_id;
2064 /* Save ctx handle in quicly connection */
2065 quic_store_conn_ctx (conn, ctx);
2068 quic_session = session_alloc (ctx->c_thread_index);
2069 QUIC_DBG (2, "Allocated quic_session, 0x%lx ctx %u",
2070 session_handle (quic_session), ctx->c_c_index);
2071 quic_session->session_state = SESSION_STATE_LISTENING;
2072 ctx->c_s_index = quic_session->session_index;
2074 lctx = quic_ctx_get (ctx->listener_ctx_id, 0);
2076 quic_session->app_wrk_index = lctx->parent_app_wrk_id;
2077 quic_session->connection_index = ctx->c_c_index;
2078 quic_session->session_type =
2079 session_type_from_proto_and_ip (TRANSPORT_PROTO_QUIC, ctx->udp_is_ip4);
2080 quic_session->listener_handle = lctx->c_s_index;
2082 /* Register connection in connections map */
2083 quic_make_connection_key (&kv, quicly_get_master_id (conn));
2084 kv.value = ((u64) pctx->thread_index) << 32 | (u64) pctx->ctx_index;
2085 clib_bihash_add_del_16_8 (&quic_main.connection_hash, &kv, 1 /* is_add */ );
2086 QUIC_DBG (2, "Registering conn with id %lu %lu", kv.key[0], kv.key[1]);
2088 /* If notify fails, reset connection immediatly */
2089 if ((rv = app_worker_init_accepted (quic_session)))
2091 QUIC_ERR ("failed to allocate fifos");
2092 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2096 app_wrk = app_worker_get (quic_session->app_wrk_index);
2097 if ((rv = app_worker_accept_notify (app_wrk, quic_session)))
2099 QUIC_ERR ("failed to notify accept worker app");
2100 quic_proto_on_close (pctx->ctx_index, pctx->thread_index);
2104 ctx->conn_state = QUIC_CONN_STATE_READY;
2108 quic_reset_connection (u64 udp_session_handle, quic_rx_packet_ctx_t * pctx)
2110 /* short header packet; potentially a dead connection. No need to check the
2111 * length of the incoming packet, because loop is prevented by authenticating
2112 * the CID (by checking node_id and thread_id). If the peer is also sending a
2113 * reset, then the next CID is highly likely to contain a non-authenticating
2115 QUIC_DBG (2, "Sending stateless reset");
2117 quicly_datagram_t *dgram;
2118 session_t *udp_session;
2119 quicly_context_t *quicly_ctx;
2120 if (pctx->packet.cid.dest.plaintext.node_id != 0
2121 || pctx->packet.cid.dest.plaintext.thread_id != 0)
2123 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2124 dgram = quicly_send_stateless_reset (quicly_ctx, &pctx->sa, NULL,
2125 &pctx->packet.cid.dest.plaintext);
2128 udp_session = session_get_from_handle (udp_session_handle);
2129 rv = quic_send_datagram (udp_session, dgram);
2130 quic_set_udp_tx_evt (udp_session);
2135 quic_process_one_rx_packet (u64 udp_session_handle, svm_fifo_t * f,
2136 u32 fifo_offset, quic_rx_packet_ctx_t * pctx)
2140 u32 thread_index = vlib_get_thread_index ();
2141 u32 cur_deq = svm_fifo_max_dequeue (f) - fifo_offset;
2142 quicly_context_t *quicly_ctx;
2143 session_t *udp_session;
2146 ret = svm_fifo_peek (f, fifo_offset,
2147 SESSION_CONN_HDR_LEN, (u8 *) & pctx->ph);
2148 QUIC_ASSERT (ret == SESSION_CONN_HDR_LEN);
2149 QUIC_ASSERT (pctx->ph.data_offset == 0);
2150 full_len = pctx->ph.data_length + SESSION_CONN_HDR_LEN;
2151 if (full_len > cur_deq)
2153 QUIC_ERR ("Not enough data in fifo RX");
2157 /* Quicly can read len bytes from the fifo at offset:
2158 * ph.data_offset + SESSION_CONN_HDR_LEN */
2159 ret = svm_fifo_peek (f, SESSION_CONN_HDR_LEN + fifo_offset,
2160 pctx->ph.data_length, pctx->data);
2161 if (ret != pctx->ph.data_length)
2163 QUIC_ERR ("Not enough data peeked in RX");
2167 quic_increment_counter (QUIC_ERROR_RX_PACKETS, 1);
2168 quic_build_sockaddr (&pctx->sa, &pctx->salen, &pctx->ph.rmt_ip,
2169 pctx->ph.rmt_port, pctx->ph.is_ip4);
2170 quicly_ctx = quic_get_quicly_ctx_from_udp (udp_session_handle);
2171 plen = quicly_decode_packet (quicly_ctx, &pctx->packet,
2172 pctx->data, pctx->ph.data_length);
2174 if (plen == SIZE_MAX)
2179 rv = quic_find_packet_ctx (pctx, thread_index);
2180 if (rv == QUIC_PACKET_TYPE_RECEIVE)
2182 pctx->ptype = QUIC_PACKET_TYPE_RECEIVE;
2183 if (quic_main.vnet_crypto_enabled)
2185 quic_ctx_t *qctx = quic_ctx_get (pctx->ctx_index, thread_index);
2186 quic_crypto_decrypt_packet (qctx, pctx);
2190 else if (rv == QUIC_PACKET_TYPE_MIGRATE)
2192 pctx->ptype = QUIC_PACKET_TYPE_MIGRATE;
2193 /* Connection found but on wrong thread, ask move */
2195 else if (QUICLY_PACKET_IS_LONG_HEADER (pctx->packet.octets.base[0]))
2197 pctx->ptype = QUIC_PACKET_TYPE_ACCEPT;
2198 udp_session = session_get_from_handle (udp_session_handle);
2199 pctx->ctx_index = udp_session->opaque;
2200 pctx->thread_index = thread_index;
2204 pctx->ptype = QUIC_PACKET_TYPE_RESET;
2210 quic_udp_session_rx_callback (session_t * udp_session)
2212 /* Read data from UDP rx_fifo and pass it to the quicly conn. */
2213 quic_main_t *qm = &quic_main;
2214 quic_ctx_t *ctx = NULL, *prev_ctx = NULL;
2215 svm_fifo_t *f = udp_session->rx_fifo;
2217 u64 udp_session_handle = session_handle (udp_session);
2219 u32 thread_index = vlib_get_thread_index ();
2220 u32 cur_deq, fifo_offset, max_packets, i;
2222 quic_rx_packet_ctx_t packets_ctx[QUIC_RCV_MAX_BATCH_PACKETS];
2224 if (udp_session->flags & SESSION_F_IS_MIGRATING)
2226 QUIC_DBG (3, "RX on migrating udp session");
2231 max_deq = svm_fifo_max_dequeue (f);
2236 max_packets = QUIC_RCV_MAX_BATCH_PACKETS;
2239 clib_memset (packets_ctx, 0xfa,
2240 QUIC_RCV_MAX_BATCH_PACKETS * sizeof (quic_rx_packet_ctx_t));
2243 for (i = 0; i < max_packets; i++)
2245 packets_ctx[i].thread_index = UINT32_MAX;
2246 packets_ctx[i].ctx_index = UINT32_MAX;
2247 packets_ctx[i].ptype = QUIC_PACKET_TYPE_DROP;
2249 cur_deq = max_deq - fifo_offset;
2252 max_packets = i + 1;
2255 if (cur_deq < SESSION_CONN_HDR_LEN)
2257 fifo_offset = max_deq;
2258 max_packets = i + 1;
2259 QUIC_ERR ("Fifo %d < header size in RX", cur_deq);
2262 rv = quic_process_one_rx_packet (udp_session_handle, f,
2263 fifo_offset, &packets_ctx[i]);
2264 if (packets_ctx[i].ptype != QUIC_PACKET_TYPE_MIGRATE)
2265 fifo_offset += SESSION_CONN_HDR_LEN + packets_ctx[i].ph.data_length;
2268 max_packets = i + 1;
2273 quic_crypto_batch_rx_packets (&qm->
2274 wrk_ctx[thread_index].crypto_context_batch);
2276 for (i = 0; i < max_packets; i++)
2278 switch (packets_ctx[i].ptype)
2280 case QUIC_PACKET_TYPE_RECEIVE:
2281 ctx = quic_ctx_get (packets_ctx[i].ctx_index, thread_index);
2282 rv = quicly_receive (ctx->conn, NULL, &packets_ctx[i].sa,
2283 &packets_ctx[i].packet);
2284 if (rv && rv != QUICLY_ERROR_PACKET_IGNORED)
2286 QUIC_ERR ("quicly_receive return error %U",
2287 quic_format_err, rv);
2290 case QUIC_PACKET_TYPE_ACCEPT:
2291 quic_accept_connection (&packets_ctx[i]);
2293 case QUIC_PACKET_TYPE_RESET:
2294 quic_reset_connection (udp_session_handle, &packets_ctx[i]);
2298 ctx = prev_ctx = NULL;
2299 for (i = 0; i < max_packets; i++)
2302 switch (packets_ctx[i].ptype)
2304 case QUIC_PACKET_TYPE_RECEIVE:
2305 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2306 packets_ctx[i].thread_index);
2307 quic_check_quic_session_connected (ctx);
2308 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2309 packets_ctx[i].thread_index);
2311 case QUIC_PACKET_TYPE_ACCEPT:
2312 ctx = quic_ctx_get (packets_ctx[i].ctx_index,
2313 packets_ctx[i].thread_index);
2316 continue; /* this exits the for loop since other packet types are
2317 necessarily the last in the batch */
2319 if (ctx != prev_ctx)
2320 quic_send_packets (ctx);
2323 udp_session = session_get_from_handle (udp_session_handle); /* session alloc might have happened */
2324 f = udp_session->rx_fifo;
2325 svm_fifo_dequeue_drop (f, fifo_offset);
2327 if (svm_fifo_max_dequeue (f))
2334 quic_common_get_transport_endpoint (quic_ctx_t * ctx,
2335 transport_endpoint_t * tep, u8 is_lcl)
2337 session_t *udp_session;
2338 if (!quic_ctx_is_stream (ctx))
2340 udp_session = session_get_from_handle (ctx->udp_session_handle);
2341 session_get_endpoint (udp_session, tep, is_lcl);
2346 quic_get_transport_listener_endpoint (u32 listener_index,
2347 transport_endpoint_t * tep, u8 is_lcl)
2350 app_listener_t *app_listener;
2351 session_t *udp_listen_session;
2352 ctx = quic_ctx_get (listener_index, vlib_get_thread_index ());
2353 if (quic_ctx_is_listener (ctx))
2355 app_listener = app_listener_get_w_handle (ctx->udp_session_handle);
2356 udp_listen_session = app_listener_get_session (app_listener);
2357 return session_get_endpoint (udp_listen_session, tep, is_lcl);
2359 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2363 quic_get_transport_endpoint (u32 ctx_index, u32 thread_index,
2364 transport_endpoint_t * tep, u8 is_lcl)
2367 ctx = quic_ctx_get (ctx_index, thread_index);
2368 quic_common_get_transport_endpoint (ctx, tep, is_lcl);
2372 static session_cb_vft_t quic_app_cb_vft = {
2373 .session_accept_callback = quic_udp_session_accepted_callback,
2374 .session_disconnect_callback = quic_udp_session_disconnect_callback,
2375 .session_connected_callback = quic_udp_session_connected_callback,
2376 .session_reset_callback = quic_udp_session_reset_callback,
2377 .session_migrate_callback = quic_udp_session_migrate_callback,
2378 .add_segment_callback = quic_add_segment_callback,
2379 .del_segment_callback = quic_del_segment_callback,
2380 .builtin_app_rx_callback = quic_udp_session_rx_callback,
2381 .session_cleanup_callback = quic_udp_session_cleanup_callback,
2382 .app_cert_key_pair_delete_callback = quic_app_cert_key_pair_delete_callback,
2385 static const transport_proto_vft_t quic_proto = {
2386 .connect = quic_connect,
2387 .close = quic_proto_on_close,
2388 .start_listen = quic_start_listen,
2389 .stop_listen = quic_stop_listen,
2390 .get_connection = quic_connection_get,
2391 .get_listener = quic_listener_get,
2392 .update_time = quic_update_time,
2393 .app_rx_evt = quic_custom_app_rx_callback,
2394 .custom_tx = quic_custom_tx_callback,
2395 .format_connection = format_quic_connection,
2396 .format_half_open = format_quic_half_open,
2397 .format_listener = format_quic_listener,
2398 .get_transport_endpoint = quic_get_transport_endpoint,
2399 .get_transport_listener_endpoint = quic_get_transport_listener_endpoint,
2400 .transport_options = {
2403 .tx_type = TRANSPORT_TX_INTERNAL,
2404 .service_type = TRANSPORT_SERVICE_APP,
2409 static quicly_stream_open_t on_stream_open = { quic_on_stream_open };
2410 static quicly_closed_by_peer_t on_closed_by_peer = { quic_on_closed_by_peer };
2411 static quicly_now_t quicly_vpp_now_cb = { quic_get_time };
2414 quic_register_cipher_suite (crypto_engine_type_t type,
2415 ptls_cipher_suite_t ** ciphers)
2417 quic_main_t *qm = &quic_main;
2418 vec_validate (qm->quic_ciphers, type);
2419 clib_bitmap_set (qm->available_crypto_engines, type, 1);
2420 qm->quic_ciphers[type] = ciphers;
2424 quic_update_fifo_size ()
2426 quic_main_t *qm = &quic_main;
2427 segment_manager_props_t *seg_mgr_props =
2428 application_get_segment_manager_properties (qm->app_index);
2433 ("error while getting segment_manager_props_t, can't update fifo-size");
2437 seg_mgr_props->tx_fifo_size = qm->udp_fifo_size;
2438 seg_mgr_props->rx_fifo_size = qm->udp_fifo_size;
2441 static clib_error_t *
2442 quic_init (vlib_main_t * vm)
2444 u32 segment_size = 256 << 20;
2445 vlib_thread_main_t *vtm = vlib_get_thread_main ();
2446 tw_timer_wheel_1t_3w_1024sl_ov_t *tw;
2447 vnet_app_attach_args_t _a, *a = &_a;
2448 u64 options[APP_OPTIONS_N_OPTIONS];
2449 quic_main_t *qm = &quic_main;
2452 num_threads = 1 /* main thread */ + vtm->n_threads;
2454 clib_memset (a, 0, sizeof (*a));
2455 clib_memset (options, 0, sizeof (options));
2457 a->session_cb_vft = &quic_app_cb_vft;
2458 a->api_client_index = APP_INVALID_INDEX;
2459 a->options = options;
2460 a->name = format (0, "quic");
2461 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
2462 a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
2463 a->options[APP_OPTIONS_RX_FIFO_SIZE] = qm->udp_fifo_size;
2464 a->options[APP_OPTIONS_TX_FIFO_SIZE] = qm->udp_fifo_size;
2465 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = qm->udp_fifo_prealloc;
2466 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
2467 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
2468 a->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_IS_TRANSPORT_APP;
2470 if (vnet_application_attach (a))
2472 clib_warning ("failed to attach quic app");
2473 return clib_error_return (0, "failed to attach quic app");
2476 vec_validate (qm->ctx_pool, num_threads - 1);
2477 vec_validate (qm->wrk_ctx, num_threads - 1);
2479 for (i = 0; i < num_threads; i++)
2481 qm->wrk_ctx[i].next_cid.thread_id = i;
2482 tw = &qm->wrk_ctx[i].timer_wheel;
2483 tw_timer_wheel_init_1t_3w_1024sl_ov (tw, quic_expired_timers_dispatch,
2484 1e-3 /* timer period 1ms */ , ~0);
2485 tw->last_run_time = vlib_time_now (vlib_get_main ());
2486 clib_bihash_init_24_8 (&qm->wrk_ctx[i].crypto_context_hash,
2487 "quic crypto contexts", 64, 128 << 10);
2489 qm->wrk_ctx[i].crypto_context_batch.nb_rx_packets = 0;
2490 qm->wrk_ctx[i].crypto_context_batch.nb_tx_packets = 0;
2493 clib_bihash_init_16_8 (&qm->connection_hash, "quic connections", 1024,
2496 qm->app_index = a->app_index;
2497 qm->tstamp_ticks_per_clock = vm->clib_time.seconds_per_clock
2498 / QUIC_TSTAMP_RESOLUTION;
2499 qm->session_cache.super.cb = quic_encrypt_ticket_cb;
2501 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2502 FIB_PROTOCOL_IP4, ~0);
2503 transport_register_protocol (TRANSPORT_PROTO_QUIC, &quic_proto,
2504 FIB_PROTOCOL_IP6, ~0);
2506 clib_bitmap_alloc (qm->available_crypto_engines,
2507 app_crypto_engine_n_types ());
2508 quic_register_cipher_suite (CRYPTO_ENGINE_VPP, quic_crypto_cipher_suites);
2509 quic_register_cipher_suite (CRYPTO_ENGINE_PICOTLS,
2510 ptls_openssl_cipher_suites);
2511 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2512 qm->max_packets_per_key = DEFAULT_MAX_PACKETS_PER_KEY;
2513 clib_rwlock_init (&qm->crypto_keys_quic_rw_lock);
2515 vnet_crypto_main_t *cm = &crypto_main;
2516 if (vec_len (cm->engines) == 0)
2517 qm->vnet_crypto_enabled = 0;
2519 qm->vnet_crypto_enabled = 1;
2525 VLIB_INIT_FUNCTION (quic_init);
2527 static clib_error_t *
2528 quic_plugin_crypto_command_fn (vlib_main_t * vm,
2529 unformat_input_t * input,
2530 vlib_cli_command_t * cmd)
2532 quic_main_t *qm = &quic_main;
2533 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
2534 return clib_error_return (0, "unknown input '%U'",
2535 format_unformat_error, input);
2536 if (unformat (input, "vpp"))
2537 qm->default_crypto_engine = CRYPTO_ENGINE_VPP;
2538 else if (unformat (input, "picotls"))
2539 qm->default_crypto_engine = CRYPTO_ENGINE_PICOTLS;
2541 return clib_error_return (0, "unknown input '%U'",
2542 format_unformat_error, input);
2546 u64 quic_fifosize = 0;
2547 static clib_error_t *
2548 quic_plugin_set_fifo_size_command_fn (vlib_main_t * vm,
2549 unformat_input_t * input,
2550 vlib_cli_command_t * cmd)
2552 quic_main_t *qm = &quic_main;
2553 unformat_input_t _line_input, *line_input = &_line_input;
2556 if (!unformat_user (input, unformat_line_input, line_input))
2559 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2561 if (unformat (line_input, "%U", unformat_memory_size, &tmp))
2563 if (tmp >= 0x100000000ULL)
2565 return clib_error_return
2566 (0, "fifo-size %llu (0x%llx) too large", tmp, tmp);
2568 qm->udp_fifo_size = tmp;
2569 quic_update_fifo_size ();
2572 return clib_error_return (0, "unknown input '%U'",
2573 format_unformat_error, line_input);
2580 quic_get_counter_value (u32 event_code)
2584 vlib_error_main_t *em;
2590 vm = vlib_get_main ();
2591 em = &vm->error_main;
2592 n = vlib_get_node (vm, quic_input_node.index);
2595 foreach_vlib_main(({
2596 em = &this_vlib_main->error_main;
2597 i = n->error_heap_index + code;
2598 c = em->counters[i];
2600 if (i < vec_len (em->counters_last_clear))
2601 c -= em->counters_last_clear[i];
2610 quic_show_aggregated_stats (vlib_main_t * vm)
2612 u32 num_workers = vlib_num_workers ();
2613 quic_main_t *qm = &quic_main;
2614 quic_ctx_t *ctx = NULL;
2615 quicly_stats_t st, agg_stats;
2616 u32 i, nconn = 0, nstream = 0;
2618 clib_memset (&agg_stats, 0, sizeof (agg_stats));
2619 for (i = 0; i < num_workers + 1; i++)
2622 pool_foreach (ctx, qm->ctx_pool[i],
2624 if (quic_ctx_is_conn (ctx) && ctx->conn)
2626 quicly_get_stats (ctx->conn, &st);
2627 agg_stats.rtt.smoothed += st.rtt.smoothed;
2628 agg_stats.rtt.minimum += st.rtt.minimum;
2629 agg_stats.rtt.variance += st.rtt.variance;
2630 agg_stats.num_packets.received += st.num_packets.received;
2631 agg_stats.num_packets.sent += st.num_packets.sent;
2632 agg_stats.num_packets.lost += st.num_packets.lost;
2633 agg_stats.num_packets.ack_received += st.num_packets.ack_received;
2634 agg_stats.num_bytes.received += st.num_bytes.received;
2635 agg_stats.num_bytes.sent += st.num_bytes.sent;
2638 else if (quic_ctx_is_stream (ctx))
2643 vlib_cli_output (vm, "-------- Connections --------");
2644 vlib_cli_output (vm, "Current: %u", nconn);
2645 vlib_cli_output (vm, "Opened: %d",
2646 quic_get_counter_value (QUIC_ERROR_OPENED_CONNECTION));
2647 vlib_cli_output (vm, "Closed: %d",
2648 quic_get_counter_value (QUIC_ERROR_CLOSED_CONNECTION));
2649 vlib_cli_output (vm, "---------- Streams ----------");
2650 vlib_cli_output (vm, "Current: %u", nstream);
2651 vlib_cli_output (vm, "Opened: %d",
2652 quic_get_counter_value (QUIC_ERROR_OPENED_STREAM));
2653 vlib_cli_output (vm, "Closed: %d",
2654 quic_get_counter_value (QUIC_ERROR_CLOSED_STREAM));
2655 vlib_cli_output (vm, "---------- Packets ----------");
2656 vlib_cli_output (vm, "RX Total: %d",
2657 quic_get_counter_value (QUIC_ERROR_RX_PACKETS));
2658 vlib_cli_output (vm, "RX 0RTT: %d",
2659 quic_get_counter_value (QUIC_ERROR_ZERO_RTT_RX_PACKETS));
2660 vlib_cli_output (vm, "RX 1RTT: %d",
2661 quic_get_counter_value (QUIC_ERROR_ONE_RTT_RX_PACKETS));
2662 vlib_cli_output (vm, "TX Total: %d",
2663 quic_get_counter_value (QUIC_ERROR_TX_PACKETS));
2664 vlib_cli_output (vm, "----------- Stats -----------");
2665 vlib_cli_output (vm, "Min RTT %f",
2666 nconn > 0 ? agg_stats.rtt.minimum / nconn : 0);
2667 vlib_cli_output (vm, "Smoothed RTT %f",
2668 nconn > 0 ? agg_stats.rtt.smoothed / nconn : 0);
2669 vlib_cli_output (vm, "Variance on RTT %f",
2670 nconn > 0 ? agg_stats.rtt.variance / nconn : 0);
2671 vlib_cli_output (vm, "Packets Received %lu",
2672 agg_stats.num_packets.received);
2673 vlib_cli_output (vm, "Packets Sent %lu", agg_stats.num_packets.sent);
2674 vlib_cli_output (vm, "Packets Lost %lu", agg_stats.num_packets.lost);
2675 vlib_cli_output (vm, "Packets Acks %lu",
2676 agg_stats.num_packets.ack_received);
2677 vlib_cli_output (vm, "RX bytes %lu", agg_stats.num_bytes.received);
2678 vlib_cli_output (vm, "TX bytes %lu", agg_stats.num_bytes.sent);
2682 quic_format_quicly_conn_id (u8 * s, va_list * args)
2684 quicly_cid_plaintext_t *mid = va_arg (*args, quicly_cid_plaintext_t *);
2685 s = format (s, "C%x_%x", mid->master_id, mid->thread_id);
2690 quic_format_quicly_stream_id (u8 * s, va_list * args)
2692 quicly_stream_t *stream = va_arg (*args, quicly_stream_t *);
2694 format (s, "%U S%lx", quic_format_quicly_conn_id,
2695 quicly_get_master_id (stream->conn), stream->stream_id);
2700 quic_format_listener_ctx (u8 * s, va_list * args)
2702 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2703 s = format (s, "[#%d][%x][Listener]", ctx->c_thread_index, ctx->c_c_index);
2708 quic_format_connection_ctx (u8 * s, va_list * args)
2710 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2711 quicly_stats_t quicly_stats;
2713 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2717 s = format (s, "- no conn -\n");
2720 s = format (s, "[%U]",
2721 quic_format_quicly_conn_id, quicly_get_master_id (ctx->conn));
2722 quicly_get_stats (ctx->conn, &quicly_stats);
2724 s = format (s, "[RTT >%3d, ~%3d, V%3d, last %3d]",
2725 quicly_stats.rtt.minimum, quicly_stats.rtt.smoothed,
2726 quicly_stats.rtt.variance, quicly_stats.rtt.latest);
2727 s = format (s, " TX:%d RX:%d loss:%d ack:%d",
2728 quicly_stats.num_packets.sent,
2729 quicly_stats.num_packets.received,
2730 quicly_stats.num_packets.lost,
2731 quicly_stats.num_packets.ack_received);
2736 quic_format_stream_ctx (u8 * s, va_list * args)
2738 quic_ctx_t *ctx = va_arg (*args, quic_ctx_t *);
2739 session_t *stream_session;
2740 quicly_stream_t *stream = ctx->stream;
2743 s = format (s, "[#%d][%x]", ctx->c_thread_index, ctx->c_c_index);
2744 s = format (s, "[%U]", quic_format_quicly_stream_id, stream);
2746 stream_session = session_get_if_valid (ctx->c_s_index, ctx->c_thread_index);
2747 if (!stream_session)
2749 s = format (s, "- no session -\n");
2752 txs = svm_fifo_max_dequeue (stream_session->tx_fifo);
2753 rxs = svm_fifo_max_dequeue (stream_session->rx_fifo);
2754 s = format (s, "[rx %d tx %d]\n", rxs, txs);
2758 static clib_error_t *
2759 quic_show_connections_command_fn (vlib_main_t * vm,
2760 unformat_input_t * input,
2761 vlib_cli_command_t * cmd)
2763 unformat_input_t _line_input, *line_input = &_line_input;
2764 u8 show_listeners = 0, show_conn = 0, show_stream = 0;
2765 u32 num_workers = vlib_num_workers ();
2766 quic_main_t *qm = &quic_main;
2767 clib_error_t *error = 0;
2768 quic_ctx_t *ctx = NULL;
2770 session_cli_return_if_not_enabled ();
2772 if (!unformat_user (input, unformat_line_input, line_input))
2774 quic_show_aggregated_stats (vm);
2778 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
2780 if (unformat (line_input, "listener"))
2782 else if (unformat (line_input, "conn"))
2784 else if (unformat (line_input, "stream"))
2788 error = clib_error_return (0, "unknown input `%U'",
2789 format_unformat_error, line_input);
2794 for (int i = 0; i < num_workers + 1; i++)
2797 pool_foreach (ctx, qm->ctx_pool[i],
2799 if (quic_ctx_is_stream (ctx) && show_stream)
2800 vlib_cli_output (vm, "%U", quic_format_stream_ctx, ctx);
2801 else if (quic_ctx_is_listener (ctx) && show_listeners)
2802 vlib_cli_output (vm, "%U", quic_format_listener_ctx, ctx);
2803 else if (quic_ctx_is_conn (ctx) && show_conn)
2804 vlib_cli_output (vm, "%U", quic_format_connection_ctx, ctx);
2810 unformat_free (line_input);
2815 VLIB_CLI_COMMAND (quic_plugin_crypto_command, static) =
2817 .path = "quic set crypto api",
2818 .short_help = "quic set crypto api [picotls, vpp]",
2819 .function = quic_plugin_crypto_command_fn,
2821 VLIB_CLI_COMMAND(quic_plugin_set_fifo_size_command, static)=
2823 .path = "quic set fifo-size",
2824 .short_help = "quic set fifo-size N[K|M|G] (default 64K)",
2825 .function = quic_plugin_set_fifo_size_command_fn,
2827 VLIB_CLI_COMMAND(quic_show_ctx_command, static)=
2829 .path = "show quic",
2830 .short_help = "show quic",
2831 .function = quic_show_connections_command_fn,
2833 VLIB_CLI_COMMAND (quic_list_crypto_context_command, static) =
2835 .path = "show quic crypto context",
2836 .short_help = "list quic crypto contextes",
2837 .function = quic_list_crypto_context_command_fn,
2839 VLIB_CLI_COMMAND (quic_set_max_packets_per_key, static) =
2841 .path = "set quic max_packets_per_key",
2842 .short_help = "set quic max_packets_per_key 16777216",
2843 .function = quic_set_max_packets_per_key_fn,
2845 VLIB_PLUGIN_REGISTER () =
2847 .version = VPP_BUILD_VER,
2848 .description = "Quic transport protocol",
2849 .default_disabled = 1,
2853 static clib_error_t *
2854 quic_config_fn (vlib_main_t * vm, unformat_input_t * input)
2856 quic_main_t *qm = &quic_main;
2860 qm->udp_fifo_size = QUIC_DEFAULT_FIFO_SIZE;
2861 qm->udp_fifo_prealloc = 0;
2862 qm->connection_timeout = QUIC_DEFAULT_CONN_TIMEOUT;
2863 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
2865 if (unformat (input, "fifo-size %U", unformat_memory_size, &tmp))
2867 if (tmp >= 0x100000000ULL)
2869 return clib_error_return (0,
2870 "fifo-size %llu (0x%llx) too large",
2873 qm->udp_fifo_size = tmp;
2875 else if (unformat (input, "conn-timeout %u", &i))
2876 qm->connection_timeout = i;
2877 else if (unformat (input, "fifo-prealloc %u", &i))
2878 qm->udp_fifo_prealloc = i;
2880 return clib_error_return (0, "unknown input '%U'",
2881 format_unformat_error, input);
2887 VLIB_EARLY_CONFIG_FUNCTION (quic_config_fn, "quic");
2890 quic_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
2891 vlib_frame_t * frame)
2897 VLIB_REGISTER_NODE (quic_input_node) =
2899 .function = quic_node_fn,
2900 .name = "quic-input",
2901 .vector_size = sizeof (u32),
2902 .type = VLIB_NODE_TYPE_INTERNAL,
2903 .n_errors = ARRAY_LEN (quic_error_strings),
2904 .error_strings = quic_error_strings,
2909 * fd.io coding-style-patch-verification: ON
2912 * eval: (c-set-style "gnu")